CN110794930B - Server, floating connector and system - Google Patents

Server, floating connector and system Download PDF

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Publication number
CN110794930B
CN110794930B CN201910880735.0A CN201910880735A CN110794930B CN 110794930 B CN110794930 B CN 110794930B CN 201910880735 A CN201910880735 A CN 201910880735A CN 110794930 B CN110794930 B CN 110794930B
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China
Prior art keywords
circuit board
connector
floating connector
copper bar
module
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CN201910880735.0A
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Chinese (zh)
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CN110794930A (en
Inventor
菅奕颖
李定方
李世强
宋桂东
龚心虎
宁湘
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201910880735.0A priority Critical patent/CN110794930B/en
Publication of CN110794930A publication Critical patent/CN110794930A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/18Packaging or power distribution
    • G06F1/181Enclosures
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/18Packaging or power distribution
    • G06F1/183Internal mounting support structures, e.g. for printed circuit boards, internal connecting means

Abstract

The application provides a server, a floating connector and a system, wherein the server comprises a case, a module and a circuit board, wherein the module and the circuit board are arranged in the case; the circuit board is connected with the module through a floating connector; the floating connector is connected with the case in a sliding way; wherein the floating connector is slidable in a first direction relative to the chassis. In the scheme, the power supply module is connected with the circuit board through the floating connector, so that the power supply module can be respectively connected with different circuit boards, and the different circuit boards are connected in parallel, and the flexibility of the server architecture is improved. In addition, when the circuit boards of different levels are connected in parallel, tolerance can be absorbed through the floating connector, tolerance accumulation during assembly is reduced, the power supply module is conveniently connected with different circuit boards, and the assembly efficiency of the server is improved.

Description

Server, floating connector and system
Technical Field
The present application relates to the field of servers, and in particular, to a server, a floating connector, and a system.
Background
Under the times flood of internet, big data and cloud computing, higher and higher requirements are put forward on the layout density of the server, and in a limited case space, a multilayer PCB (printed circuit board) stacking structure needs to be realized, so that the product performance is improved. However, in a multi-layer complex stacking structure, the tolerance accumulation value of the connector fit between different boards is large, which causes the problems of excessive connector stress, difficult assembly, reduced reliability and the like, thereby causing system failure.
The current mode is that electricity/signals and the like are transmitted only between two adjacent modules through the matching of connectors, so that the system scheme can be realized through the serial connection and stacking of multiple layers of PCBs (printed circuit boards) only by solving the problem of tolerance of the matching of the connectors between the adjacent modules. When the module has a plurality of, adjacent PCB board can be placed in forms such as perpendicular or parallel, only need the design satisfy between two adjacent PCB tolerance be no more than the tolerance of connector cooperation allowable can, do not have coupling and stack between the tolerance of non-adjacent board, easily realize that multilayer PCB board high-density piles up. However, in the above connector with limited guiding capability, the prior art can only realize serial connection of different levels of connectors, and the assembly difficulty is increased as more and more circuit boards are in the chassis.
Disclosure of Invention
The application provides a server, a floating connector and a system, which are used for improving the assembly efficiency of the server.
In a first aspect, a server is provided, which includes a chassis, and a module disposed in the chassis; the module is used for supplying power to a circuit board and other electronic devices in the case or transmitting signals. In addition, a circuit board is also stacked in the case; the circuit board is connected with the module through a floating connector; the floating connector is connected with the case in a sliding way; wherein the floating connector is slidable in a first direction relative to the chassis. In the scheme, the module is connected with the circuit board through the floating connector, so that the module can be connected with the circuit board, and the circuit board is connected in parallel by the module, and the flexibility of a server framework is improved. In addition, when the circuit boards are connected in parallel, tolerance can be absorbed through the floating connector, so that tolerance accumulation during assembly is reduced, installation requirements are reduced, the modules are conveniently connected with different circuit boards, and the assembly efficiency of the server is improved.
In a possible implementation manner, a support column is arranged on the case, and the floating connector is provided with a long waist hole in sliding fit with the support column. Through the relative slip between long waist hole and the support column, realize the sliding fit between floating connector and the quick-witted case.
In a possible implementation manner, the supporting column is spirally connected with a locking screw which is arranged in the long waist hole in a penetrating manner; the floating connector is locked at a set position through a locking screw arranged in the long waist hole in a penetrating mode. The stability of the floating connector when being connected with the module and the circuit board respectively is ensured.
In one possible implementation, a guide pin is provided on the module; the floating connector is provided with a guide sleeve sleeved on the guide pin. Through the positioning fit, the floating connector can be accurately connected with the module.
In one possible implementation, the module and the floating connector can slide relative to each other by means of guide pins and guide sleeves. In this implementation, the guide pin and guide sleeve are coarsely positioned, and the guide pin can move slightly in the guide sleeve, so that relative sliding between the module and the floating connector is possible, and thus tolerance can be further absorbed.
In one possible implementation, the floating connector includes: the copper bar is arranged in the frame body; the frame body is connected with the case in a sliding manner; the circuit board is connected with the module through the copper bar. The floating connection is realized through different structures of the floating connector, and the sliding connection with the chassis and the connection with the module and the circuit board are realized.
In a possible implementation manner, the copper bar is connected with the frame body in a sliding manner, and the copper bar can slide along a second direction relative to the frame body. The adjustable range of the floating connector is improved by the sliding of the copper bar relative to the frame body in the second direction.
In one possible implementation, the first direction is perpendicular to the second direction. So that tolerances can be absorbed in two ranges perpendicular to each other.
In a possible implementation manner, a first connector is arranged on one side of the copper bar, which faces the circuit board; the circuit board is provided with a first jacket for connecting with a first connector; the module is provided with a second connector; a second jacket used for being connected with the second connector is arranged on one side, facing the module, of the copper bar; wherein the first connector is slidable in a third direction relative to the first collet when the first collet is connected to the first connector but not secured; when the second jacket is connected with the second connector but not fixed, the second connector can slide along 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 respectively parallel to the first direction; or, the third direction and the fourth direction are respectively parallel to the second direction. The connection is realized through the matching of the connector and the jacket.
In a possible implementation manner, the number of the circuit boards may be multiple, and the multiple circuit boards are in the same layer. Thereby, the floating connector can be connected with different circuit boards on the same layer.
In a possible implementation manner, a through hole is formed in the frame body, and the second connecting sleeve penetrates through the through hole to be exposed. Thereby facilitating connection with the second connector of the module.
In a second aspect, a floating connector is provided, which includes a frame body, and a copper bar disposed in the frame body; the frame body is used for being in sliding connection with a chassis of the server; the copper bar is used for connecting the module and the circuit board. Through floating connector and quick-witted case sliding connection to make floating connector can absorb the tolerance accumulation when assembling between the module of quick-witted case and the circuit board, reduce the installation requirement, make things convenient for the module to be connected with different circuit boards.
In a possible implementation manner, the copper bar is connected with the frame body in a sliding manner, and the copper bar can slide along a second direction relative to the frame body. Through the sliding connection of the copper bar and the frame body, the flexibility of the connection of the floating connector, the circuit board and the module can be improved.
In one possible implementation, the floating connector is provided with a long waist hole for sliding fit of a chassis of the server, and the floating connector can slide along a first direction relative to the chassis. The long waist hole is matched with the server case to realize sliding connection.
In a possible implementation manner, a first connector is arranged on one side of the copper bar, which faces the circuit board; the circuit board is provided with a first jacket for connecting with a first connector; the module is provided with a second connector; a second jacket used for being connected with the second connector is arranged on one side, facing the module, of the copper bar; wherein the first connector is slidable in a third direction relative to the first collet when the first collet is connected to the first connector but not secured; when the second jacket is connected with the second connector but not fixed, the second connector can slide along 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 respectively parallel to the first direction; or, the third direction and the fourth direction are respectively parallel to the second direction. The connection is realized through the matching of the connector and the jacket. The floating connector is respectively connected with the module and the circuit board through the matching of the connector and the connecting sleeve.
In a possible implementation manner, a through hole is formed in the frame body, and the second connecting sleeve penetrates through the through hole to be exposed. Thereby facilitating connection with the second connector of the module.
In a third aspect, there is provided a system comprising a server as described in any above, or a floating connector as described in any above. In the above scheme, the modules are connected with the circuit boards through the floating connectors, so that the modules can be directly connected with different circuit boards respectively, and the flexibility of the server architecture is improved. In addition, when the circuit boards of different levels are connected in parallel, tolerance can be absorbed through the floating connector, so that tolerance accumulation during assembly is reduced, installation requirements are reduced, and the modules can be conveniently connected with different circuit boards.
Drawings
Fig. 1 is an exploded schematic view of a server provided by an embodiment of the present application;
fig. 2 illustrates a schematic diagram of a YZ plane of a server provided by an embodiment of the present application;
fig. 3 is a schematic diagram illustrating an XZ plane of a server provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram illustrating a power module provided in an embodiment of the present application;
FIG. 5 illustrates an exploded view of a power module provided by an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating a floating connector according to an embodiment of the present disclosure;
FIG. 7 illustrates an exploded view of a floating connector provided by embodiments of the present application;
FIG. 8 illustrates a second floating connector provided by embodiments of the present application;
FIG. 9 shows a partial enlarged view at A in FIG. 8;
FIG. 10 shows a specific configuration of the floating connector connected to the chassis;
FIG. 11 is a schematic diagram showing a floating connector slidable relative to a chassis;
fig. 12 shows a schematic diagram of a floating connector and a power supply module provided by an embodiment of the present application.
Detailed Description
To facilitate understanding of the server provided in the embodiments of the present application, a structure and an application scenario of the server are first described. The server is applied to the Internet, big data and cloud computing. As the demand on computing power of internet, big data and cloud computing is higher and higher, the structural layout in the server is more and more compact, and more circuit boards need to be arranged in the chassis of the server. The plurality of circuit boards can be divided into circuit boards of different grades according to different functions, such as circuit boards of different grades, such as a first-grade circuit board, a second-grade circuit board or a third-grade circuit board. For example, the primary circuit board may be a Central Processing Unit (CPU) board, and the secondary circuit board may be an embedded neural-Network Processing Unit (NPU) board. When a plurality of circuit boards are arranged in the case, the circuit boards at the same level can be arranged at one layer, the circuit boards at different levels are arranged in a layered manner, if two-level circuit boards exist, the circuit boards in the case are divided into two layers, and if three-level circuit boards exist, the circuit boards in the case are divided into three layers. It should be understood, of course, that the above-described circuit board layering arrangement is merely an example, and the server provided in the embodiment of the present application is not limited to the specific layering manner of the circuit board.
When the server is used, the circuit board in the case needs to be connected through the power module to supply power. The power supply mode adopted in the server in the prior art is an interlayer power supply mode, namely, a plurality of circuit boards are connected in series for power supply: the power module supplies power to the nearest circuit board, and then adjacent circuit boards are sequentially connected for power supply. When the power supply is adopted, the circuit boards are connected in series. When the circuit board and the power supply are assembled in the case, the case is used as an assembly reference, and the circuit boards and the cases at different levels are connected with the case through matching modes such as a hanging nail and a groove. Because the chassis has machining tolerance during machining in different processes and assembly tolerance of each circuit board relative to the chassis is large, large accumulated tolerance is generated, and assembly between the power supply and the circuit board is difficult. However, as the number of circuit boards in the server is increasing, the assembly is more and more difficult, and therefore, the above power supply method cannot meet the existing server, and a server is provided for this application embodiment, which is described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, fig. 1 is an exploded schematic diagram of a server provided in an embodiment of the present application. The server provided by the embodiment of the application comprises a chassis 50, a circuit board, a floating connector 40 and a power supply module 10. For convenience of description with reference to the drawings in the embodiments of the present application, a coordinate system XYZ is established in fig. 1, in which the X-axis direction, the Y-axis direction, and the Z-axis direction are respectively parallel to one side of the casing 50.
Reference is also made to fig. 2 and 3, wherein fig. 2 is a schematic diagram of a YZ plane of a server provided by an embodiment of the present application; fig. 3 is a schematic diagram of an XZ plane of a server according to an embodiment of the present application. The chassis 50 provided in the embodiment of the present application is used to carry the circuit board and the power module 10. The power module 10 and the circuit board are fixed in the chassis 50. In fig. 2, three circuit boards, a first circuit board 20, a second circuit board 30, and a third circuit board 60 are illustrated. The first circuit board 20 is a primary circuit board, and the second circuit board 30 and the third circuit board 60 are secondary 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 60 may be NPU boards, respectively. With continued reference to fig. 2, the second circuit board 30 and the third circuit board 60 are located at the same layer; and along the Z direction, the first circuit board 20 is located above the second circuit board 30 and the third circuit board 60 on the same layer; the power module 10 is located above the first circuit board 20.
With reference to fig. 2 and fig. 3, when the circuit boards (the first circuit board 20, the second circuit board 30, and the third circuit board 60) and the power module 10 are fixed, the power module 10 is fixedly connected to the chassis 50, and the circuit board is fixedly connected to the chassis 50 through a connection structure, where the connection structure may be a bracket in the chassis 50 or a support structure on the chassis 50, and details are not repeated here.
Referring to fig. 4 and 5 together, fig. 4 shows a specific structure of the power module 10, and fig. 5 shows an exploded schematic view of the power module 10. The power module 10 provided in the embodiment of the present application is electrically connected to the three circuit boards. When assembled, the power module 10 is fixedly connected to the chassis 50. With reference to fig. 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, wherein the power backplane 14 is fixed to the power frame 15 by a snap; the bottom of the power frame 15 is provided with a first power strip 12, the power backplane 14 is provided with a second power strip 11, and the power frame 15 is internally provided with a power supply 16 electrically connected with the first power strip 12 and the second power strip 11. The second socket 11 is used for supplying power to the first circuit board 20, and the first socket 12 is used for supplying power to the second circuit board 30 and the third circuit board 60; for the first socket 12 and the second socket 11 both include sockets correspondingly connected to the positive electrode and the negative electrode of the power supply, detailed description thereof is omitted. When the first socket 12 supplies power to the second circuit board 30 and the third circuit board 60, the floating connector 40 is used for switching. The power module 10 provided in the embodiment of the present application is directly electrically connected to the floating connector 40 through the first socket 12, and is electrically connected to the second circuit board 30 and the third circuit board 60 through the floating connector 40, that is, the first circuit board (the first circuit board 20) is connected to the second circuit board (the second circuit board 30 and the third circuit board 60) in parallel.
With continued reference to fig. 4 and 5, the first socket 12 and the second socket 11 are located below the power frame 15, and when the circuit board is inserted into the power module 10, the circuit board is electrically connected to the power module 10 from below the power frame 15. Therefore, the first socket 12 and the second socket 11 are disposed below the power frame 15, so as to facilitate connection of the power module 10 to the circuit board. In addition, when the first socket 12 and the second socket 11 are disposed, as can be seen from fig. 5, along the Z-axis direction, the first socket 12 is located below the power frame 15 (with the placement direction of the power module 10 in fig. 5 as a reference direction), the second socket 11 is located on the right side of the power frame 15, and the second socket 11 extends to the outside of the power frame 15, so as to avoid the disposed first socket 12 from affecting the connection between the second socket 11 and the first circuit board 20. It should be understood that the arrangement positions of the first socket 12 and the second socket 11 are only a specific example, and in the embodiment of the present application, when the first socket 12 and the second socket 11 on the power module 10 are arranged, it is only necessary to ensure that the power module 10 is connected to the circuit board without interference, and the arrangement positions are not limited to the specific arrangement positions shown in fig. 4 and fig. 5.
The power 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 frame 15, and the guide pin 13 and the first socket 12 are located on the same side of the power frame 15. The guide pins 13 are used to position the floating connector 40 relative to the power module 10 to ensure that the floating connector 40 can be electrically connected to the first socket 12 when the floating connector 40 is connected to the power module 10. Two guide pins 13 are illustrated in fig. 5, and the two guide pins 13 are arranged on both sides of the first block 12 and are arranged diagonally. However, it should be understood that, in practical applications, different numbers of guide pins 13 may be provided as required, and the present application is not limited thereto.
With continued reference 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 fig. 2 and 3 together, the first circuit board 20 is provided with a copper clip corresponding to the second socket 11, which will be referred to as a first copper clip 21 for 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 electrically conductively connected to the first circuit board 20. With continuing reference to fig. 2 and 3, it can be seen from fig. 2 and 3 that, the length direction of the first copper clip 21 and the second power strip 11 is along the Y-axis direction, and the requirement for assembly accuracy is relatively low when the copper clip is matched with the power strip, so that reliable connection between the first circuit board 20 and the power module 10 can be ensured when the copper clip is matched with the power strip. As can be seen from fig. 2, the first circuit board 20 is disposed adjacent to the power module 10, so that the dimensional chain between the power module 10 and the first circuit board 20 is short, the tolerance accumulation between the two is also small, the reliable connection between the power module 10 and the first circuit board 20 can be ensured by the first copper clip 21 and the second socket 11, and the requirement on the alignment precision between the two is low.
With reference to fig. 2, the second circuit board 30 and the third circuit board 60 provided in the embodiment of the present disclosure are identical circuit boards, and when the second circuit board 30 and the third circuit board 60 are disposed in the same layer, the dimension chain between the two is short, and the relative tolerance is small. With continued reference to fig. 2, the second circuit board 30 and the third circuit board 60 are mounted below the first circuit board 20 and are located at a longer distance from the power module 10, so that during mounting, a larger tolerance is generated between the power module 10 and the second circuit board 30 and the third circuit board 60 due to the longer dimension chain. Therefore, when assembled, the power 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 disposed, the floating connector 40 is slidably coupled to the housing 50, so that the tolerance between the power module 10 and the second and third circuit boards 30 and 60 can be absorbed by the relative sliding between the floating connector 40 and the housing 50. For ease of understanding, the following description is made with reference to the accompanying drawings.
With continued reference to fig. 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 by means of a socket and a copper clip. The connection of the floating connector 40 to the power module 10, the second circuit board 30 and the third circuit board 60 will be described in detail with reference to the accompanying drawings.
Reference is also made to fig. 6 and 7, wherein fig. 6 shows a schematic structural view of the floating connector 40, and fig. 7 shows an exploded schematic view of the floating connector 40. The floating connector 40 shown in fig. 6 and 7 includes a frame 43, and a copper bar 44 disposed inside the frame 43. The frame 43 serves as a structural member for connecting the floating connector 40 with the chassis, and the copper bar 44 serves as a structural member for connecting the floating connector 40 with the power module 10, the second circuit board 30 and the third circuit board 60.
With continued reference to fig. 6 and 7, the frame 43 of the floating connector 40 includes an upper frame 431 and a lower frame 432 detachably and fixedly connected to the upper frame 431, and a space for accommodating the copper bar 44 is enclosed between the upper frame 431 and the lower frame 432. When the upper frame body 431 and the lower frame body 432 are specifically connected, the connection can be detachable through bolts, screws or buckles, which are common connection modes, and therefore, the detailed description is omitted here. With continued reference to fig. 6 and 7, as shown in fig. 6 and 7, the lower frame 432 is provided with a guide sleeve 434, and the guide sleeve 434 is used for correspondingly matching with the guide pin of the power module 10, so as to align the floating connector 40 with the power module 10.
It should be understood that the guide sleeve 434 is disposed on the lower frame 432, but the guide sleeve 434 may be disposed on the upper frame 431 in the embodiment of the present invention. As a practical modification, it is also possible to provide a guide pin to the floating connector 40 and fix the guide sleeve 434 to the power module 10.
With continued reference to fig. 6 and 7, the copper bar is fixed to the frame 43 and detachably and fixedly connected to the lower frame 432 by screws or bolts. The length direction of the copper bar 44 is along the X direction, and the copper bar is provided with a plurality of bolts or screws arranged in a single row, and when the copper bar 44 is fixed, the copper bar is locked on the lower frame 432 through the bolts and the screws. It should be understood that, in order to avoid 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, an insulating pad is disposed, or the frame 43 is made of an insulating material, but other known insulating methods may also be used to insulate the copper bar 44 from the frame 43.
With continued reference to fig. 6 and 7, the copper bar 44 is provided with second copper clips 41a and 41b and third socket banks 42a, 42b, 42c and 42d, wherein the second copper clips 41a and 41b are located above the copper bar 44 and are used for electrically connecting with the third socket banks 42a, 42b, 42c and 42d, and the third socket banks 42a, 42b, 42c and 42d are located below the copper bar 44. The second copper clips 41a, 41b are used for electrically connecting with the power module 10, and the third socket bars 42a, 42b, 42c, 42d are used for electrically connecting with the second circuit board 30 and the third circuit board 60.
As shown in fig. 5 for the first socket 12 of the power module 10, the number of the first sockets 12 may be two, and the two first sockets 12 are respectively connected to the positive pole and the negative pole of the power module 10. Therefore, the second copper clips 41a and the second copper clips 41b are correspondingly arranged, and the second copper clips 41a and 41b are respectively used for being clamped and connected with the two first socket strips 12 in a one-to-one correspondence manner. When specifically setting up the copper bar 44, the number of copper bar 44 is also two, for the convenience of description, names two copper bars first copper bar 441 and second copper bar 442 respectively, wherein, second copper clip 41a passes through the bolt or fix with screw at first copper bar 441, and second copper clip 41b passes through the bolt or fix with screw at second copper bar 442. As shown in fig. 7, the first copper bar 441 and the second copper bar 442 are stacked and electrically insulated from each other, so as to prevent the two copper bars from being electrically connected to form a short circuit. With continued reference to fig. 7, the frame 43 (the upper frame 431) is provided with a through hole 435, and the second copper clips 41a and 41b can be exposed through the through hole 435 to facilitate connection with the first copper bar 441 of the power module 10.
Referring to fig. 2 and 7, when the floating connector 40 is connected to the second circuit board 30 and the third circuit board 60, two third copper clips 61 and two third copper clips 31 are respectively disposed on the second circuit board 30 and the third circuit board 60, and the corresponding floating connector 40 is provided with third socket rows 42a, 42b, 42c and 42d which are matched with the two third copper clips 61 and the two third copper clips 31. For 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 socket rows 42a and 42c are disposed on the first copper bar 441, in fig. 7, the two third socket rows 42a and 42c and the first copper bar 441 are integrated, the first copper bar 441 is bent downward to form two third socket rows, the two third socket rows 42a and 42c are arranged along the length direction of the first copper bar 441, wherein the two third socket rows 42a and 42c 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. Similarly, the second copper bar 442 is provided with two third socket banks 42b and 42d, the second copper bar 442 is bent downward to form the two third socket banks 42b and 42d, the two third socket banks 42b and 42d are arranged along the length direction of the second copper bar 442, and the two third socket banks 42b and 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 socket rows 42b and 42d and the second copper bar 442 are integrated.
With continued reference to fig. 7, to facilitate the connection of the floating connector 40 with the second circuit board 30 and the third circuit board 60, the two third socket rows 42a and 42c connected to the first copper bar 441 are disposed crosswise with the two third socket rows 42b and 42d connected to the second copper bar 442, as shown in fig. 7, along the length direction of the first copper bar 441, the four socket rows are arranged as follows: the third socket 42a, the third socket 42b, the third socket 42c and the third socket 42d enable the first copper bar 441 and the second copper bar 442 to be electrically connected to the second circuit board 30 and the third circuit board 60, respectively, when the second circuit board 30 and the third circuit board 60 are arranged on the same layer.
The floating connector 40 provided in the embodiment of the present application is not limited to the floating connector 40 shown in fig. 6 and 7. Fig. 8 shows a second floating connector 40, as shown in fig. 8, wherein the reference numbers in fig. 8 may refer to the reference numbers in fig. 6 and 7. The second floating connector 40 differs from the floating connector 40 shown in fig. 6 in that the copper bars in the second floating connector 40 are slidably connected to the frame 43. Referring also to fig. 9, fig. 9 shows a partial enlarged view at a in fig. 8. When the copper bar is connected to the lower frame 432. An insulation support seat 71 is arranged on the copper bar, a through hole is arranged on the insulation support seat 71, a pressing sleeve 74 is arranged in the through hole, and the pressing sleeve 74 is sleeved on the screw 72. In addition, the lower frame 432 is provided with a threaded hole 73 which is matched with the screw 72, when the copper bar is fixed on the lower frame 432, as shown in fig. 9, the pressing sleeve 74 is partially positioned in the through hole, and a gap of X3 exists between the pressing sleeve 74 and the side wall of the through hole, so that the copper bar can slide relative to the lower frame 432 by a distance of X3 in the second direction before the screw 72 is unlocked. Therefore, the copper bar can slide along the second direction relative to the lower frame 432.
As shown in fig. 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 connection of the floating connector 40 to the power module 10 and the chassis will be described.
Reference is also made to fig. 10 and 11, wherein fig. 10 shows a specific structure of the floating connector connected to the chassis, and fig. 11 shows a schematic diagram of the floating connector being slidable with respect to the chassis 50. As shown in fig. 10 and 11, the chassis 50 is provided with a plurality of support columns 51, the support columns 51 are arranged along the length direction of the floating connector, the floating connector is provided with a long waist hole 4321 slidably engaged with each support column 51, and specifically, the long waist hole 4321 is provided on the lower frame 432. When assembled, 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 a first direction, and the length direction of the long waist hole 4321 is a direction in which the floating connector can slide relative to the chassis 50. The first direction is a length direction of the floating connector, i.e., an X-axis direction in fig. 1. As shown in fig. 10, when the support column 51 is inserted into the long waist hole 4321, a gap of x2 length exists between the support column 51 and the long waist hole 4321 in the first direction, and the support column 51 can be adjusted to a specific position in the long waist hole 4321 as required, so as to realize the relative sliding between the floating connector and the chassis 50. Further, each support column 51 is screw-coupled with a locking screw inserted into the long waist hole 4321 for locking the floating connector, and when assembled, the locking screw passes through the long waist hole 4321 and is screw-coupled with the support column 51, and the floating connector is locked at a set position by the locking screw inserted into each long waist hole 4321. In use, when the floating connector needs to be adjusted, the locking screw is loosened, the support column 51 can slide in the long waist hole 4321, and when the support column slides to a set position, the locking screw is locked, so that the floating connector is 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 being connected with the power module 10 and the circuit board, respectively, can be ensured. As can be seen from the above description, the floating connector provided in the embodiment of the present application can slide by a distance of X2 with respect to the chassis 50, and through the gap of X2 length between the supporting column 51 and the long waist hole 4321, the floating connector can absorb the error of X2 length in the first direction. Thereby absorbing a part of the accumulated tolerance of the second circuit board 30 and the third circuit board 60 with respect to the power module 10.
When the floating connector slides with the chassis, the floating connector needs to be electrically connected with the second circuit board 30 and the third circuit board 60, and when the floating connector is specifically connected, the third socket of the floating connector is electrically connected with the third copper clips on the second circuit board 30 and the third circuit board 60 respectively.
Reference is also made to fig. 4, 10 and 12, wherein fig. 12 is a schematic diagram illustrating the floating connector 40 and the power module 10 according to the embodiment of the present disclosure. The power module 10 is provided with guide pins 13, and the number of the guide pins 13 may be one, two or more; while the floating connector 40 is provided with a guide sleeve 434 fitted around 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 be moved by x1 distance with respect to the power module 10. So that the floating connector 40 can be electrically connected to the power module 10 accurately, wherein the specific electrical connection of the floating connector 40 to the power module 10 can be referred to the description of the second copper clip 41 and the second socket 11.
In order to facilitate the assembly effect of the server provided in the embodiment of the present application, the following describes the assembly process of the server in detail. The power module 10, the first circuit board 20, the second circuit board 30 and the third circuit board 60 are actually assembled in the chassis 50 in a stacked manner from bottom to top, as shown in fig. 1, 2 and 3:
assembling the second circuit board 30 and the third circuit board 60 on the bottom case of the chassis 50;
the floating connector 40 is assembled on the supporting column of the case 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;
mounting the first circuit board 20 on the chassis 50;
the power module 10 is mounted on the chassis 50, and the second copper bar 442 on the power module 10 is engaged with the first copper clip 21 of the first circuit board 20, and the first copper bar 441 is engaged with the second copper clip on the floating connector 40. Since the power module 10 is precisely matched with the first circuit board 20, the matching between the power module 10 and the floating connector 40 needs to absorb a large tolerance based on the matching of the power module 10. 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 transmit force through the guide pin 13/the guide sleeve 434 to drive the floating connector 40 to move integrally relative to the chassis 50 (the maximum amount of movement x2), and if the tolerance of x2 is absorbed, the copper bar inside the floating connector 40 can move relative to the frame (the maximum amount of movement x3) until the power module 10 is assembled with the first circuit board 20 and the floating connector 40 at the same time, and the power module 10 is electrically connected to the first circuit board 20 and the floating connector 40, respectively.
As can be seen from the above description, in the server of the present application, the guide sleeve 434 of the floating connector 40 is matched with the guide pin 13 of the power module 10 to achieve coarse positioning, the absorbable tolerance value is x1, the floating amount of the floating connector 40 is designed to be wholly floating, the floating amount of the floating connector 40 relative to the chassis 50 can absorb the tolerance value x2, the floating amount of the copper bar inside the floating connector 40 relative to the frame is x3, wherein the value of x1+ x2+ x3 is not less than the copper bar/copper clip matching tolerance value between the power module 10 and the second 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, so 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, and if 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, the first direction is parallel to the second direction. However, in the embodiment of the present application, not only the sliding fit described above, but also a manner in which the second direction is perpendicular to the first direction may be adopted, that is, the sliding direction of the floating connector 40 with respect to the chassis is perpendicular to the sliding direction of the copper bar with respect to the frame. Or the second direction and the first direction form a certain included angle, such as different angles of 30 degrees, 45 degrees and the like, so as to realize adjustment in more directions.
In the above example, the power 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 implemented by the copper clip and the socket. However, in the embodiment of the present application, the connection method is not limited to the above specific connection method, and other structural members that are engaged in a plugging manner may also be used. However, no matter which type of fitting is adopted, the following limitations need only be satisfied: one side of the copper bar, which faces the corresponding circuit board, is provided with a first connecting head; the circuit board corresponding to the copper bar is provided with a first jacket for clamping a first connector; the power module 10 is provided with a second connector; one side of the copper bar facing the power module 10 is provided with a second jacket for clamping the second connector.
When the jacket and the connector are specifically adopted, when the first jacket is connected with the first connector but not fixed, taking a copper clip as an example, the first connector can slide along a third direction relative to the first jacket; when the second jacket is connected with the second connector but not fixed, the second connector can slide along 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 respectively parallel to the first direction; or, the third direction and the fourth direction are respectively parallel to the second direction. The connection is realized through the matching of the connector and the jacket. Therefore, the floating connector 40 can be electrically connected with the corresponding circuit board and the power module 10 after being relatively moved. The connection but not fixed means that the connection between the jacket and the connector is not tightly fixed, taking the copper clip and the power strip as an example, that is, when the power strip is not clamped by the copper clip.
In addition, in the above example, the two-stage circuit board is taken as an example for explanation, when there are multiple stages of circuit boards in the server, the floating connectors 40 provided above may be used for connection, except that the number of the floating connectors 40 is changed according to the number of the connected circuit boards. It is only necessary that the first-stage circuit board near the power module 10 be directly connected to the power module 10, and the remaining circuit boards of each stage be connected to the power module 10 through the floating connector 40. Of course, the number of circuit boards in each stage is not limited to two, and the number of circuit boards in each stage provided in the embodiment of the present application may be multiple, and when the number of circuit boards in each stage is multiple, the circuit boards in the same stage are in the same layer. So that the floating connector 40 can be electrically connected to a different circuit board located at the same layer.
As can be seen from the above description, 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 stages respectively, and the circuit boards of different stages are connected in parallel, thereby improving the flexibility of the server architecture. In addition, when the parallel connection between different-stage circuit boards is adopted, the tolerance can be absorbed through the floating connector 40, so that the tolerance accumulation during assembly is reduced, the installation requirement is reduced, and the power module 10 can be conveniently connected with different circuit boards.
It should be understood that the modules provided in the embodiments of the present application are not limited to the power module, and may also be other modules, such as a transceiver module, a communication module, and other different modules.
The embodiment of the application also provides a floating connector, which comprises a frame body and a copper bar arranged in the frame body; the frame body is used for being in sliding connection with a chassis of the server; the copper bar is used for electrically connecting the power supply module and the circuit board. During specific sliding connection, the floating connector is provided with a long waist hole matched with the chassis of the server in a sliding mode, and the floating connector can slide along a first direction relative to the chassis. In addition, the copper bar can also be connected with the frame body in a sliding mode, and the copper bar can slide along the second direction relative to the frame body.
A plurality of first connectors are arranged on one side of each copper bar, which faces to the corresponding circuit board; the circuit board corresponding to each copper bar is provided with a first jacket for clamping each first connecting head, meanwhile, the frame body is provided with a through hole, and the second connecting sleeve penetrates through the through hole to be exposed. The power supply module is provided with a plurality of second connectors; one side of each copper bar, which faces the power supply module, is provided with a second jacket for clamping each second connector; when the jacket and the connector are specifically adopted, when the first jacket is connected with the first connector but not fixed, taking a copper clip as an example, the first connector can slide along a third direction relative to the first jacket; when the second jacket is connected with the second connector but not fixed, the second connector can slide along 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 respectively parallel to the first direction; or, the third direction and the fourth direction are respectively parallel to the second direction. The connection is realized through the matching of the connector and the jacket. Therefore, the floating connector 40 can be electrically connected with the corresponding circuit board and the power module 10 after being relatively moved. The connection but not fixed means that the connection between the jacket and the connector is not tightly fixed, taking the copper clip and the power strip as an example, that is, when the power strip is not clamped by the copper clip. The structure of a specific floating connector can be referred to the description in relation to fig. 6 to 9 above.
In addition, the embodiment of the present application further provides a system, where the system includes any one of the servers described above, or any one of the floating connectors described above. In the scheme, the power supply module is connected with the circuit boards at other stages through the floating connector, so that the power supply module can be directly connected with the circuit boards at different stages respectively, and the circuit boards at different stages are connected in parallel, thereby improving the flexibility of the server architecture. In addition, when the circuit boards of different levels are connected in parallel, the floating connector can absorb tolerance, so that tolerance accumulation during assembly is reduced, installation requirements are reduced, and the power supply module is conveniently connected with different circuit boards.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (9)

1. A server, comprising: the computer comprises a case, a module and a circuit board, wherein the module and the circuit board are arranged in the case;
the circuit board is connected with the module through a floating connector; the floating connector is connected with the case in a sliding way; the floating connector can slide along a first direction relative to the chassis;
the floating connector includes: the copper bar is arranged in the frame body; wherein the content of the first and second substances,
the frame body is connected with the case in a sliding manner;
the circuit board is connected with the module through the copper bar;
the copper bar is connected with the frame body in a sliding mode, the copper bar can slide along a second direction relative to the frame body, and the first direction is perpendicular to the second direction.
2. The server according to claim 1, wherein a support column is disposed on the chassis, and the floating connector is provided with a long waist hole slidably engaged with the support column.
3. The server according to claim 2, wherein the support column is screwed with a locking screw inserted into the long waist hole;
the floating connector is locked at a set position through a locking screw arranged in the long waist hole in a penetrating mode.
4. A server according to any one of claims 1 to 3, wherein the module is provided with guide pins; the floating connector is provided with a guide sleeve sleeved on the guide pin.
5. The server according to claim 1,
a first connecting head is arranged on one side of the copper bar, which faces the circuit board;
the circuit board is provided with a first jacket for connecting with a first connector;
the module is provided with a second connector;
a second jacket used for being connected with the second connector is arranged on one side, facing the module, of the copper bar; wherein the content of the first and second substances,
the first connector is slidable in a third direction relative to the first collet when the first collet is connected to the first connector but not fixed;
when the second jacket is connected with the second connector but not fixed, the second connector can slide along a fourth direction relative to the second jacket.
6. A floating connector is characterized by comprising a frame body and a copper bar arranged in the frame body; wherein the content of the first and second substances,
the frame body is used for being in sliding connection with a chassis of the server;
the copper bar is used for connecting the module and the circuit board;
the copper bar is connected with the frame body in a sliding mode, and the copper bar can slide along a second direction relative to the frame body.
7. The floating connector of claim 6, wherein the floating connector is provided with a long waist hole that is a sliding fit with the chassis, the floating connector being slidable in a first direction relative to the chassis.
8. The floating connector of claim 7,
a first connecting head is arranged on one side of the copper bar, which faces the circuit board;
the circuit board is provided with a first jacket for connecting with a first connector;
the module is provided with a second connector;
a second jacket used for being connected with the second connector is arranged on one side, facing the module, of the copper bar; wherein the content of the first and second substances,
the first connector is slidable in a third direction relative to the first collet when the first collet is connected to the first connector but not fixed;
when the second jacket is connected with the second connector but not fixed, the second connector can slide along a fourth direction relative to the second jacket.
9. A computer system comprising a server as claimed in any one of claims 1 to 5 or a floating connector as claimed in any one of claims 6 to 8.
CN201910880735.0A 2019-09-17 2019-09-17 Server, floating connector and system Active CN110794930B (en)

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