CN116430960A

CN116430960A - Server and whole cabinet server

Info

Publication number: CN116430960A
Application number: CN202310247056.6A
Authority: CN
Inventors: 冉懋良
Original assignee: XFusion Digital Technologies Co Ltd
Current assignee: XFusion Digital Technologies Co Ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-07-14
Also published as: WO2024187698A1

Abstract

The application provides a server and a complete machine cabinet server, wherein the server comprises a chassis, a first power supply unit, an electric device and a power switching assembly, the first power supply unit, the electric device and the power switching assembly are all arranged in the chassis, and the power switching assembly comprises a switching circuit board, a first connector and a second connector; the first connector and the second connector are both arranged on the switching circuit board and are electrically connected with the switching circuit board, and the first connector is used for being electrically connected with the power distribution unit; the power distribution unit is used for receiving the first voltage and inputting the first voltage to the first connector; the second connector is also electrically connected with the input end of the first power supply unit, the output end of the first power supply unit is electrically connected with the electric device, and the first power supply unit is used for converting the first voltage into the second voltage so as to supply power for the electric device. The internal wiring of the server is concise, and the internal space utilization rate of the server is high.

Description

Server and whole cabinet server

Technical Field

The application relates to electronic equipment, in particular to a server and a complete machine cabinet server.

Background

In current complete cabinet servers, the power distribution unit typically supplies power to the servers from the rear side of the servers. In some servers, the power supply unit (Power Supply Unit, PSU) needs to be installed close to the front panel. At this time, more cables need to be used to extend from the rear side to the front side of the server to be electrically connected with the power supply unit, the routing mode inside the server is complex, and the excessive use space inside the server is occupied.

Disclosure of Invention

The embodiment of the application aims to provide a server and a whole cabinet server, wherein wires inside the server are concise, and meanwhile, the utilization rate of the internal space of the server is high.

The embodiment of the application provides a server, which comprises a chassis, a first power supply unit, an electric device and a power switching assembly, wherein the first power supply unit, the electric device and the power switching assembly are all arranged in the chassis, and the power switching assembly comprises a switching circuit board, a first connector and a second connector;

the first connector and the second connector are both arranged on the switching circuit board and are electrically connected with the switching circuit board, and the first connector is used for being electrically connected with the power distribution unit; the power distribution unit is used for receiving the first voltage and inputting the first voltage to the first connector;

The second connector is also electrically connected with the input end of the first power supply unit, the output end of the first power supply unit is electrically connected with the electric device, and the first power supply unit is used for converting the first voltage into the second voltage so as to supply power for the electric device.

In the power switching assembly provided by the embodiment of the application, the first connector in the power switching assembly is utilized to be electrically connected with the power distribution unit, and the second connector is electrically connected with the input end of the first power supply unit, so that the electric connection between the power distribution unit and the first power supply unit is realized, the power switching assembly is connected with the first voltage output by the power distribution unit, and meanwhile, the power distribution unit and the first power supply unit are not required to be electrically connected by more cables, so that the wiring in the server is concise, and meanwhile, the utilization rate of the use space in the server is improved.

In one possible embodiment, the transit circuit board includes a first signal layer, an input of the first signal layer being electrically connected to the first connector, and an output of the first signal layer being electrically connected to the second connector.

In one possible embodiment, the power switching assembly further comprises a third connector and a fourth connector, each of which is mounted to the switching circuit board and electrically connected to the switching circuit board; the third connector is electrically connected with the output end of the first power supply unit and is used for receiving a second voltage;

The switching circuit board further comprises a second signal layer, the second signal layer is arranged in an insulating mode with the first signal layer, the input end of the second signal layer is electrically connected with the third connector, the output end of the second signal layer is electrically connected with the fourth connector, and the fourth connector is electrically connected with the electric device so as to provide a second voltage for the electric device. The third connector in the power switching assembly can be electrically connected with the output end of the first power supply unit so as to lead the second voltage converted by the first power supply unit into the power switching assembly and output the second voltage from the fourth connector, so that the power switching assembly has the function of electrically connecting the power distribution unit and the first power supply unit, and can output the second voltage converted by the first power supply unit through the fourth connector, and the power consumption device can be conveniently powered.

In one possible embodiment, the transit circuit board further includes an intermediate insulating layer, the intermediate insulating layer being located between the first signal layer and the second signal layer, the intermediate insulating layer having a thickness L1, L1 being greater than or equal to 0.4mm, to meet the requirement of enhanced insulation.

In one possible embodiment, the intermediate insulating layer comprises at least one sub-insulating layer, the thickness of the sub-insulating layer being greater than or equal to 0.4mm.

In one possible embodiment, the intermediate insulating layer comprises at least two sub-insulating layers, the at least two sub-insulating layers being arranged in a stack, the withstand voltage of the interposer circuit board being greater than or equal to 3000Vac.

In one possible implementation, the transit circuit board further includes an intermediate insulating layer, the intermediate insulating layer being located between the first signal layer and the second signal layer, the intermediate insulating layer including at least one sub-insulating layer, a thickness of a single sub-insulating layer being less than 0.4mm, a distance between the first signal layer and the second signal layer being L2,3mm < L2 < 6mm along a direction parallel to a surface of the transit circuit board, to achieve additional insulating electrical gap and creepage distance requirements.

In one possible embodiment, the patch circuit board includes a first end and a second end disposed opposite each other, the first connector being located at the first end of the patch circuit board and the second connector being located at the second end of the patch circuit board.

In one possible implementation manner, the switching circuit board is further provided with at least one grounding end, the grounding end is exposed relative to the surface of the switching circuit board, the width of the grounding end is W, W is greater than or equal to 5mm, the safety performance of the switching circuit board can be improved, the safety performance of the power switching assembly is improved, and the safety performance of the server is further improved.

In one possible implementation manner, the first connector, the second connector and the fourth connector all comprise pins, the pins of the first connector and the pins of the second connector are plugged into the switching circuit board and are electrically connected with the first signal layer, the pins of the fourth connector are plugged into the switching circuit board and are electrically connected with the second signal layer, and the circuit board assembly further comprises insulating glue;

at least part of the pins of the first connector are exposed relative to the surface of the switching circuit board, the insulating glue covers the exposed parts of the pins of the first connector relative to the surface of the switching circuit board,

or at least part of the pins of the second connector are exposed relative to the surface of the switching circuit board, the insulating glue covers the exposed parts of the pins of the second connector relative to the surface of the switching circuit board,

or at least part of the pins of the fourth connector are exposed relative to the surface of the switching circuit board, and the insulating glue covers the exposed parts of the pins of the fourth connector relative to the surface of the switching circuit board. Through setting up the insulating glue, can promote the safety protection performance of power switching subassembly, and then promote the security performance of server, avoid taking place potential incident.

In one possible implementation manner, the first connector includes pins, the pins of the first connector are inserted into the switching circuit board and electrically connected with the first signal layer, at least part of the pins of the first connector are exposed relative to the surface of the switching circuit board, the circuit board assembly further includes a baffle plate, the baffle plate is located at one side of the first connector facing the second connector and shields the exposed part of the pins of the first connector relative to the surface of the switching circuit board, and the baffle plate is used for protecting the exposed pins of the first connector and preventing the pins of the first connector from being damaged in the installation or use process, so that the safety protection performance of the power supply switching assembly is improved, the safety performance of the server is further improved, and potential safety accidents are avoided.

In a possible implementation manner, the power supply switching assembly further comprises an insulating part, wherein the insulating part is arranged on at least one of two surfaces of the switching circuit board, which are arranged in a back-to-back mode along the thickness direction, so that line leakage of the switching circuit board is avoided, the safety protection performance of the switching circuit board is improved, the safety protection performance of the power supply switching assembly is improved, the safety performance of a server is further improved, and potential safety accidents are avoided.

In one possible embodiment, the server further includes a circuit board assembly, the circuit board assembly including a circuit board, an electrical connector and a conductive member, the electrical connector and the conductive member being both mounted on the circuit board and both electrically connected to the circuit board, the output end of the first power supply unit being electrically connected to the electrical connector, the conductive member being electrically connected to the third connector.

In one possible embodiment, the first voltage is 220V ac and the second voltage is 48V or 54V dc.

The embodiment of the application also provides a complete machine cabinet server, which comprises a cabinet body, a first power supply distribution unit, a second power supply distribution unit and the server as above, wherein the first power supply distribution unit, the second power supply distribution unit and the server are all installed in the cabinet body, the first power supply distribution unit and the second power supply distribution unit are all located outside the cabinet, and the first power supply distribution unit and the second power supply distribution unit are all electrically connected with the first connector and are all used for receiving first voltage and inputting the first voltage to the first connector.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a whole cabinet server provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a structure in which a first power distribution unit and a second power distribution unit in the whole rack server shown in FIG. 1 are electrically connected to the server;

FIG. 3 is a partially exploded view of a server in the rack-wide server of FIG. 1;

FIG. 4 is a partial schematic diagram of a power topology of the first power distribution unit and the second power distribution unit to the server shown in FIG. 3;

FIG. 5 is a schematic diagram of a power switching assembly of the server shown in FIG. 3;

FIG. 6 is a schematic diagram of the power adapter assembly of FIG. 5 in another view;

FIG. 7 is an exploded view of the power adapter assembly of FIG. 5;

FIG. 8 is a schematic diagram illustrating a current flow between the switching circuit board and the first, second, third and fourth connectors in the power switching assembly of FIG. 5;

FIG. 9 is an exploded view of a cross-sectional structure of a transfer circuit board in the power adapter assembly of FIG. 5;

FIG. 10 is a schematic top view of the power adapter assembly of FIG. 5;

FIG. 11 is a schematic top view of a portion of the interposer circuit board of FIG. 9;

FIG. 12 is a schematic diagram of the current flow of the entire rack server of FIG. 1.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a whole cabinet server 1000 according to an embodiment of the present application, and fig. 2 is a schematic structural diagram of a first power distribution unit 300 and a second power distribution unit 400 in the whole cabinet server 1000 shown in fig. 1 electrically connected to a server 200.

For convenience of description, the length direction of the whole cabinet server 1000 shown in fig. 1 is defined as an X-axis direction, the width direction is defined as a Y-axis direction, the height direction is defined as a Z-axis direction, and the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other. The terms of "front" and "rear" and the like in describing the whole cabinet server 1000 according to the embodiments of the present application are described according to the directions shown in fig. 1 of the specification, and are not limited to the whole cabinet server 1000 in the practical application scenario, and are "front" toward the negative Y-axis direction and "rear" toward the positive Y-axis direction. The whole cabinet server 1000 may be a whole cabinet server, a cabinet switch, and other devices. In this embodiment, the whole cabinet server 1000 is illustrated by taking a whole cabinet server as an example.

The whole cabinet server 1000 comprises a cabinet body 100, a server 200 and a power distribution module, wherein the server 200 and the power distribution module are both installed on the cabinet body 100. Wherein the power distribution module is electrically connected with the server 200 to supply power to the server 200. In this embodiment, the power distribution module includes a first power distribution unit (Power Distribution Unit, PDU) 300 and a second power distribution unit 400. Illustratively, the plurality of servers 200 may be plural, and the plurality of servers 200 are installed inside the cabinet 100. In this embodiment, the server 200 is a heterogeneous server, and the chassis of the heterogeneous server includes electronic devices such as a central processing unit (Central Processing Unit, CPU) and a graphics processor (Graphics Processing Unit, GPU). The heterogeneous server is calculated in a heterogeneous manner, wherein heterogeneous calculation (heterogeneous computing) refers to that different types of calculation units cooperate to complete calculation tasks. Each computing unit may employ a different architecture, each being adept at handling a different type of computing task. The current heterogeneous computing modes mainly comprise a CPU+GPU, a CPU+field programmable gate array (field programmable gate array, FPGA), a CPU+application specific integrated circuit (application specific integrated circuit, ASIC) and the like.

Heterogeneous servers are servers that support heterogeneous computing and may typically include at least two different types of processing chips. The mainstream heterogeneous server at present mainly adopts a form of CPU+GPU, and based on the powerful parallel computing capability of the GPU, graphics rendering, training of a machine learning model, training of a neural network model and the like can be greatly accelerated. Correspondingly, heterogeneous servers are widely applied in the fields of big data, cloud computing, artificial intelligence (artificial intelligence, AI) and the like.

Specifically, the first power distribution unit 300 and the second power distribution unit 400 are both installed at the rear side of the cabinet 100, and are both located outside the chassis of the server 200. The first power distribution unit 300 and the second power distribution unit 400 are electrically connected to the server 200, respectively, and each are used for receiving a first voltage and inputting the first voltage to the server 200. The first power distribution unit 300 is a main power source, and is configured to provide a first voltage of a main circuit. The second power distribution unit 400 is a standby power supply, and is configured to provide a first voltage of a standby power supply. The first power distribution unit 300 and the second power distribution unit 400 may each provide 220V ac power, specifically, may convert 380V ac power into 220V ac power, or may directly output 220V ac power to the server 200. Protection circuitry may be included in the structure of both the first power distribution unit 300 and the second power distribution unit 400, such as to provide overload protection, filtering protection, alarm protection, and the like. In this embodiment, the first voltage is 220V ac. The first power distribution unit 300 is used for supplying 220V ac power to the main circuit of the server 200, and the second power distribution unit 400 is used for supplying 220V ac power to the backup circuit of the server 200.

Referring to fig. 3, fig. 3 is a schematic diagram illustrating a partially exploded structure of a server 200 in the whole rack server 1000 shown in fig. 1.

The server 200 includes a chassis (not shown in fig. 3), a power switching assembly 10, a first power supply unit (Power Supply Unit, PSU) 20, a circuit board assembly 30, a first electrical device 40, a second power supply unit 50, and a second electrical device 60. The power switching assembly 10, the first power supply unit 20, the circuit board assembly 30, the first electric device 40, the second power supply unit 50, and the second electric device 60 are all installed inside the cabinet. It should be noted that, in fig. 3, the power switching assembly 10, the first power supply unit 20, the circuit board assembly 30, the first electric device 40, the second power supply unit 50 and the second electric device 60 are all located inside a chassis. Wherein the circuit board assembly 30 may be a midplane backplane. The number of the first electric devices 40, the second electric devices 60, and the first and second

power supply units

20, 50 may be one or more, the number of the first electric devices 40 and the number of the second electric devices 60 may be determined according to specific services executed by the server, and the first and second

power supply units

20, 50 may be selected according to power required when each electric device in the server 200 normally operates in actual situations, which is not particularly limited herein.

Specifically, the chassis includes a front panel and a rear panel disposed opposite to each other in the Y-axis direction. Wherein the front panel faces in the negative Y-axis direction and the rear panel faces in the positive Y-axis direction. The rear panel is provided with a notch for providing space for the server 200 to access the first power distribution unit 300 and the second power distribution unit 400.

The power adapter assembly 10 is mounted in the chassis near the rear panel. The power adapter assembly 10 includes a first connector 11, a second connector 12, a third connector 13, and a fourth connector 14. The interface of the first connector 11 is exposed opposite to the notch of the rear panel, so as to realize electrical connection between the first connector 11 and the first power distribution unit 300 and the second power distribution unit 400, thereby realizing electrical connection between the server 200 and the first power distribution unit 300 and the second power distribution unit 400, and simultaneously realizing that the first voltage is connected to the power switching assembly 10, thereby realizing that the first voltage is connected to the server 200.

The first power supply unit 20 is installed in the cabinet at a position near the front panel. Specifically, each first power supply unit 20 includes an input terminal 21 and an output terminal 22. The input terminal 21 includes two input terminals, a main input terminal 211 and a standby input terminal 212, and the input terminal 21 of the first power supply unit 20 is electrically connected to the second connector 12 of the power switching assembly 10, so as to implement an electrical connection between the first power supply unit 20 and the power switching assembly 10. Each of the first power supply units 20 is configured to receive a first voltage and convert the first voltage into a second voltage. The first power supply unit 20 has six, and the second voltage is a direct current of 48V or 54V, for example. In this embodiment, each of the first power supply units 20 includes two input terminals 21. One main input end 211 of each first power supply unit 20 is used for accessing the first voltage of the main circuit, and the standby input end 212 is used for accessing the first voltage of the standby circuit, so that when the first voltage of the main circuit fails, the first voltage of the standby circuit can still supply power to the first power supply units 20, and the effect of dual-input first voltage is achieved. The input terminal of the first power supply unit 20 may be set to be one, so that a plurality of first power supply units 20 may be set, wherein one part of the input terminals of the first power supply units 20 are used for accessing the first voltage of the main circuit, and the other part of the input terminals of the first power supply units 20 are used for accessing the first voltage of the standby circuit.

The circuit board assembly 30 is electrically connected to the output end 22 of the first power supply unit 20 and electrically connected to the third connector 13 of the power switching assembly 10, so as to electrically connect the first power supply unit 20 between the second connector 12 and the third connector 13, thereby enabling the second voltage to flow to the power switching assembly 10 through the circuit board assembly 30 and be output through the fourth connector 14 of the power switching assembly 10.

The first electric devices 40 are electrically connected to the fourth connectors 14, respectively, so as to supply the second voltage output by the fourth connectors 14 to the first electric devices 40. Illustratively, the first electrical device 40 has a plurality of first electrical devices, including a 48V upper fan plate 40a, a 48V lower fan plate 40b, a computing module, and the like. The computing module comprises a graphic processor (Graphics Processing Unit, GPU) 40c, an FPGA, a power chip and the like.

The second power supply unit 50 is electrically connected to the first power distribution unit 300 and the second power distribution unit 400 to access the first voltage and convert the first voltage into a third voltage. The third voltage is, for example, 12 vdc. The second power supply units 50 are electrically connected to the second electric devices 60, respectively, to supply power to the second electric devices 60 with a third voltage. Illustratively, the second electrical devices 60 are plural, including a motherboard 60a of a central processing unit CPU computing module, a 12V fan board 60b, an expansion module (Riser module) 60c, a central processing unit (Central Processing Unit, CPU), a memory, and the like. Wherein a 12V fan board 60b may be mounted on motherboard 60a, expansion module 60c may include NVME (Non-Volatile Memory Express) disks, PCIe (Peripheral Component Interconnect Express) cards, for example expansion module 60c may include 2 NVME disks and 3 PCIe cards.

In the power switching assembly 10 provided by the embodiment of the application, the first connector 11 in the power switching assembly 10 is electrically connected with the power distribution module, and the second connector 12 is electrically connected with the input end 21 of the first power supply unit 20, so that the electrical connection between the power distribution module and the first power supply unit 20 is realized, the power switching assembly 10 is connected with the first voltage output by the power distribution module, and meanwhile, the power distribution module is electrically connected with the first power supply unit 20 without more cables, so that the wiring in the server 200 is concise, and meanwhile, the utilization rate of the use space inside the server 200 is improved.

In addition, the third connector 13 of the power switching assembly 10 may be electrically connected to the output terminal 22 of the first power supply unit 20 to introduce the second voltage converted by the first power supply unit 20 into the power switching assembly 10 and output from the fourth connector 14. The power switching assembly 10 provided by the application not only has the function of electrically connecting the power distribution unit and the first power supply unit 20, but also can output the second voltage converted by the first power supply unit 20 through the fourth connector 14, so as to be convenient for supplying power to the first electric device 40.

Referring to fig. 4, fig. 4 is a schematic diagram of a portion of a power supply topology of the first power distribution unit 300 and the second power distribution unit 400 to the server 200 shown in fig. 3. The circuit board assembly 30 is not shown in fig. 4, and the illustration only shows a schematic diagram of current flow, and does not represent actual structural connection and positional relationship.

The first power distribution unit 300 outputs a first voltage of the main circuit, and accesses the server 200 through the first connector 11 of the power switching assembly 10 (as shown in fig. 4, which is a solid line). The first voltage of the main circuit may be connected to the first power supply unit 20 through the input terminal 211 of each first power supply unit 20, and converted into the second voltage through each first power supply unit 20. The second voltage is output to the first electrical device 40 through the output terminal 22 to power the first electrical device 40. In addition, the first voltage of the main circuit can be converted into a third voltage by the second power supply unit 50, so as to supply power to the second electric device 60 by using the third voltage.

When the first voltage of the main path outputted from the first power distribution unit 300 fails, the second power distribution unit 400 starts operation and outputs the first voltage of the standby path. The first voltage of the standby circuit is connected to the server 200 (as shown by the dashed line in fig. 4) through the first connector 11 of the power switching assembly 10, and is connected to the first power supply unit 20 through the input end 212 of each first power supply unit 20, so as to supply power to the first power supply unit 20, and ensure that the first electric device 40 works normally. In addition, the first voltage of the standby circuit can be converted into a third voltage through the second power supply unit 50 to supply power to the second electric device 60, so as to ensure that the second electric device 60 works normally.

In the server 200 provided in the embodiment, the server 200 uses the first power supply unit 20 with two input ends 21, so as to access the first voltage of the main path output by the first power distribution unit 300 and the first voltage of the standby path output by the second power distribution unit 400 at the same time, thereby realizing the effect of dual-input power signals, saving the number of the first power supply units 20 compared with the conventional mode, and effectively improving the power of the first power supply unit 20.

In some embodiments, when some circuit units or components inside the dual-input first power supply unit 20 or the second power supply unit 50 fail, the first power supply unit 20 or the second power supply unit 50 may not work normally even if the first voltage of the main path output by the first power distribution unit 300 and the first voltage of the standby path output by the second power distribution unit 400 are both normal. Therefore, in order to improve the operational reliability of the server 200, one or more redundant power modules may be additionally configured on the basis of satisfying the number of the first power supply units 20 required for the normal operation of the respective electric devices inside the server 200. For example, when the number of the first power supply units 20 is 5, 1 redundant power supply module of the first power supply units 20 may be provided, where the redundant power supply module is consistent with the types of the remaining first power supply units 20, has dual input terminals, and may convert the first voltage into the second voltage; when the number of the second power supply units 50 is 1, 1 redundant power supply module of the second power supply units 50 may be provided, where the redundant power supply module is identical to the types of the remaining second power supply units 50, and has dual input terminals, so that the first voltage can be converted into the third voltage. In this way, the number of power supply units can be reduced and higher reliability can be achieved compared to the manner of a single-input power supply unit.

Referring to fig. 5, 6 and 7, fig. 5 is a schematic structural diagram of the power switching assembly 10 in the server 200 shown in fig. 3, fig. 6 is a schematic structural diagram of the power switching assembly 10 shown in fig. 5 at another view angle, and fig. 7 is an exploded structural diagram of the power switching assembly 10 shown in fig. 5.

The power switching assembly 10 includes a switching circuit board 101, a first connector 11, a second connector 12, a third connector 13, a fourth connector 14, an insulating member 106, and a shutter 107. The first connector 11, the second connector 12, the third connector 13, the fourth connector 14, the insulator 106, and the shutter 107 are mounted to the transit circuit board 101.

Specifically, the interposer circuit board 101 includes a first surface 101a and a second surface 101b disposed opposite to each other in the thickness direction. Wherein the first surface 101a faces in the positive direction of the Z-axis and the second surface 101b faces in the negative direction of the Z-axis. The interposer circuit board 101 includes oppositely disposed first and second ends. The first end is one end facing the positive direction of the Y axis, and the second end is one end facing the negative direction of the Y axis. In this embodiment, the switching circuit board 101 is a multi-layer circuit board (Printed Circuit Board, PCB).

The first connector 11, the second connector 12, the third connector 13 and the fourth connector 14 are mounted on the first surface 101a of the transit circuit board 101, and are electrically connected to the transit circuit board 101. In this embodiment, the first connector 11 is mounted on a first end of the switch circuit board 101, the second connector 12 and the fourth connector 14 are both mounted on a second end of the switch circuit board 101, and the third connector 13 is mounted on a middle area of the switch circuit board 101. The first connector 11 is illustratively a male connector for mating with the first power distribution unit 300 and the second power distribution unit 400. The second connector 12 and the fourth connector 14 are female connectors. The first connector 11, the second connector 12, the third connector 13 and the fourth connector 14 each include pins, and the pins of the first connector 11, the pins of the second connector 12, the pins of the third connector 13 and the fourth connector 14 are all plugged into the switching circuit board 101 and are all electrically connected with the switching circuit board 101. In some embodiments, at least a portion of the pins of the first connector 11 are exposed with respect to the first surface 101a of the interposer circuit board 101. In some embodiments, at least a portion of the pins of the second connector 12 are exposed with respect to the first surface 101a of the interposer circuit board 101. In some embodiments, at least a portion of the pins of the fourth connector 14 are exposed with respect to the first surface 101a of the interposer circuit board 101.

The insulating member 106 is mounted on the surface of the transit circuit board 101, and is used for insulating and isolating the surface of the transit circuit board 101. Illustratively, the insulator 106 is an insulating Mylar. In this embodiment, the insulating member 106 includes a first insulating sheet 106a and a second insulating sheet 106b, the first insulating sheet 106a is installed on the first surface 101a of the adapting circuit board 101, and the second insulating sheet 106b is installed on the second surface 101b of the adapting circuit board 101, so as to avoid line leakage of the adapting circuit board 101, and improve the safety protection performance of the adapting circuit board 101, thereby improving the safety protection performance of the power adapting assembly 10, further improving the safety performance of the server 200, and avoiding potential safety accidents. Illustratively, the thickness of the first insulating sheet 106a is no more than 0.25mm and the thickness of the second insulating sheet 106b is no more than 0.25mm.

The baffle 107 is installed on the first surface 101a of the switching circuit board 101 and is used for protecting exposed pins of the first connector 11, so as to prevent the pins of the first connector 11 from being damaged in the installation or use process, so as to improve the safety protection performance of the power switching assembly 10, further improve the safety performance of the server 200, and avoid potential safety accidents. Specifically, the baffle 107 is located on a side of the first connector 11 facing the second connector 12, and shields the exposed portion of the pins of the first connector 11 relative to the first surface 101a of the adapting circuit board 101. In this embodiment, the baffle 107 is a metal baffle, and is made of a relatively hard material, and can bear a relatively large impact force, so that the protection effect on the exposed pins of the first connector 11 is relatively good. In other embodiments, the material of the baffle 107 may be other hard materials, which is not limited in this application.

In this embodiment, the power switching assembly 10 further includes a warning mark, and the warning mark is disposed on the first surface 101a of the switching circuit board 101. Illustratively, the warning indicator is a pattern or text indicator of an electrical hazard.

The power adapter assembly 10 may also include an insulating gel. In this embodiment, the insulating adhesive covers the exposed portion of the pins of the first connector 11 corresponding to the first surface 101a of the switching circuit board 101, the exposed portion of the pins of the second connector 12 corresponding to the first surface 101a of the switching circuit board 101, and the exposed portion of the pins of the fourth connector 14 corresponding to the first surface 101a of the switching circuit board 101, so as to improve the safety protection performance of the power switching assembly 10, further improve the safety performance of the server 200, and avoid potential safety accidents.

Referring to fig. 8, fig. 8 is a schematic diagram illustrating the current flow between the switching circuit board 101 and the first, second, third and

fourth connectors

11, 12, 13 and 14 in the power switching assembly 10 shown in fig. 5. The arrow direction shown in fig. 8 indicates only the current flow, and the positional relationship of the actual structure is not represented in fig. 8.

The interposer circuit board 101 includes a dielectric substrate 1, a first signal layer 2, and a second signal layer 3. The first signal layer 2 and the second signal layer 3 are both arranged in the dielectric substrate 1 and are arranged at intervals in an insulating manner. The first signal layer 2 and the second signal layer 3 are illustratively printed wiring layers. In this embodiment, the first signal layer 2 is a 220V ac wiring layer on the primary side, and the second signal layer 3 is a 48V dc wiring layer on the secondary side.

The first signal layer 2 is electrically connected between the first connector 11 and the second connector 12 to output a first voltage connected to the first connector 11 from the second connector 12. The first voltage output by the second connector 12 may be converted into a second voltage by the first power supply unit 20, and the second voltage may be input into the switching circuit board 101 through an electrical connection between the circuit board assembly 30 and the third connector 13.

The second signal layer 3 is electrically connected between the third connector 13 and the fourth connector 14 to realize that the second voltage input by the third connector 13 is output through the fourth connector 14.

Referring to fig. 9 in combination, fig. 9 is an exploded view of a cross-sectional structure of the switching circuit board 101 in the power switching assembly 10 shown in fig. 5.

Specifically, the dielectric substrate 1 includes a plurality of sub-insulating layers 1a, and the plurality of sub-insulating layers 1a are stacked. The first surface of the dielectric substrate 1 is the first surface 101a of the switching circuit board 101, and the second surface of the dielectric substrate 1 is the second surface 101b of the switching circuit board 101. The power switching component 10 is made of a plate material with energy sources, and the plate material is authenticated by IEC/EN/UL60950-1 and IEC/EN/UL62368-1 temperature cycle tests. In this embodiment, the material of each sub-insulating layer 1a is a Polypropylene (PP) material. Illustratively, the thickness of each sub-insulating layer 1a is not less than 0.4mm to meet the reinforced insulation requirement. In this embodiment, the thickness of each sub-insulating layer 1a is 0.5mm.

The first signal layer 2 and the second signal layer 3 are located between the plurality of sub-insulating layers 1a, and are insulated from each other and disposed at intervals. It is understood that other signal layers may be disposed in the plurality of sub-insulating layers 1a, which is not limited in this application. In this embodiment, the first signal layer 2 is located on the surface of the 5 th to 8 th sub-insulating layers 1a along the direction from the first surface 101a to the second surface 101b, i.e., along the negative Z-axis direction. In this embodiment, the first signal layer 2 is closer to the first surface 101a of the interposer circuit board 101. In other embodiments, the positions of the first signal layer 2 and the second signal layer 3 may also be reversed, i.e. the second signal layer 3 is closer to the first surface 101a.

Wherein the sub-insulating layer 1a between the first signal layer 2 and the second signal layer 3 forms an intermediate insulating layer. The thickness of the intermediate insulating layer is L1, that is, the distance between the first signal layer 2 and the second signal layer 3 in the thickness direction of the interposer circuit board 101, that is, in the Z-axis direction is L1.

In some embodiments, L1 is greater than or equal to 0.4mm to meet the requirements for enhanced insulation. Illustratively, in some embodiments, the effect of reinforcing insulation may be achieved by one of the following means a), b):

a) The intermediate insulating layer may include at least one sub-insulating layer 1a, and the thickness of each sub-insulating layer 1a is greater than or equal to 0.4mm, so that the thickness of the intermediate insulating layer can be ensured to meet the requirement of enhanced insulation. When the thickness of the single sub-insulating layer 1a is greater than or equal to 0.4mm, the single sub-insulating layer 1a can meet the requirement of reinforcing insulation, and the intermediate insulating layer between the first signal layer 2 and the second signal layer 3 comprises at least one sub-insulating layer 1a, so that the requirement of reinforcing insulation can be met.

b) The intermediate insulating layer may include at least two sub-insulating layers 1a, at least two sub-insulating layers 1a are stacked, and the withstand voltage of the interposer circuit board 101 is greater than or equal to 3000Vac, where 3000Vac indicates that 3000V ac voltage is applied. At this time, the thickness of the single sub-insulating layer 1a may be less than 0.4mm. In addition, the thickness of the individual sub-insulating layers 1a is generally also at least 10 mils (meter ohms, thousandths of an inch), where 10 mils=10×0.0025 cm=0.025 cm=0.25 mm. The single sub-insulating layer 1a is relatively thin and insufficient to meet the insulation requirement, so that the intermediate insulating layer needs to include at least two sub-insulating layers 1a, and the interposer circuit board 101 may be capable of meeting the withstand voltage test of 3000Vac to meet the requirement of reinforcing insulation.

In other embodiments, the effect of reinforcing the insulation can also be achieved by way of c):

c) The intermediate insulating layer comprises at least one sub-insulating layer 1a, the thickness of the single sub-insulating layer 1a is less than 0.4mm, and the distance between the first signal layer 2 and the second signal layer 3 is L2 along the direction parallel to the surface of the transfer circuit board 101, namely along the direction parallel to the X-Y plane, wherein L2 is more than or equal to 3mm and less than or equal to 6mm. Because the thickness of the single sub-insulating layer 1a does not meet the requirement of insulation, when only one sub-insulating layer 1a exists in the middle insulating layer, one sub-insulating layer 1a can only serve as basic insulation, at this time, L2 meets the requirement of electric gap and creepage distance of additional insulation, which is less than or equal to 3mm and less than or equal to 6mm, so that after the middle insulating layer fails, the first signal layer 2 and the second signal layer 3 can still be insulated from each other, so as to ensure the safety performance of the transfer circuit board 101, thereby ensuring the safety performance of the power transfer assembly 10, and further ensuring the safety performance of the server 200.

Referring to fig. 10 in combination, fig. 10 is a schematic top view of the power adapter assembly 10 shown in fig. 5. In fig. 10, the dashed boxes of the first signal layer 2 and the second signal layer 3 indicate the positions inside the dielectric substrate 1.

In the switching circuit board 101 of the power switching assembly 10, the input end of the first signal layer 2 is electrically connected to the first connector 11, so as to enable the first connector 11 to input the first voltage to the switching circuit board 101. The output terminal of the first signal layer 2 is electrically connected to the second connector 12, so that the second connector 12 outputs the first voltage.

The input end of the second signal layer 3 is electrically connected to the third connector 13, so that the third connector 13 inputs the second voltage to the switching circuit board 101. The output end of the second signal layer 3 is electrically connected to the fourth connector 14, so that the fourth connector 14 outputs the second voltage.

Referring to fig. 11, fig. 11 is a schematic top view illustrating a part of the structure of the interposer circuit board 101 shown in fig. 9.

In this embodiment, the switching circuit board 101 further includes a connection end 4, and the connection end 4 is disposed on the surface of the dielectric substrate 1. Illustratively, there are a plurality of connection terminals 4, and the plurality of connection terminals 4 are disposed at intervals. Each connection terminal 4 is configured to electrically connect with a pin of one first connector 11, so as to achieve an electrical connection between the first connector 11 and the patch circuit board 101.

Specifically, each connection terminal 4 includes a live wire terminal 41, a neutral terminal 42, and a ground terminal 43. The live wire end 41, the neutral wire end 42 and the ground end 43 are all provided on the surface of the dielectric substrate 1. Wherein, the live wire end 41 and the zero wire end 42 are used for electrically connecting with the connecting pins of the first connector 11 so as to realize the electrical connection between the first connector 11 and the switching circuit board 101. The width of the grounding end 43 is W, W is greater than or equal to 5mm, so that the safety performance of the switching circuit board 101 can be improved, and the safety performance of the power switching assembly 10 and the safety performance of the server 200 can be improved. Illustratively, the ground terminal 43 is a copper foil that is required to pass at least 1500A of the limited short circuit test.

With continued reference to fig. 3, the circuit board assembly 30 includes a circuit board 31, an electrical connector 32, and a conductive member 33. The electrical connector 32 and the conductive member 33 are both mounted to the circuit board 31, and are both electrically connected to the circuit board 31. The electrical connector 32 is configured to be electrically connected to the output end 22 of the first power supply unit 20, so as to transmit the second voltage output by the output end 22 of the first power supply unit 20 to the conductive member 33 of the circuit board assembly 30 through the internal wiring of the circuit board 31. The conductive member 33 is plugged into the third connector 13 of the first power supply unit 20 to realize signal transmission between the circuit board assembly 30 and the power switching assembly 10, so as to realize that the second voltage is input to the third connector 13 of the power switching assembly 10 through the circuit board assembly 30 and output from the fourth connector 14 of the power switching assembly 10. Illustratively, the conductive member 33 is a copper bar.

Referring to fig. 12, fig. 12 is a schematic diagram illustrating a current flow of the whole rack server 1000 shown in fig. 1. The arrow direction shown in fig. 12 indicates only the current flow, and the positional relationship of the actual structure is not represented in fig. 12.

In the assembled whole cabinet server 1000, the first power distribution unit 300 and the second power distribution unit 400 located at the rear side of the cabinet body 100 are respectively electrically connected with the first connector 11, so as to input the first voltage of the main path output by the first power distribution unit 300 and the first voltage of the standby path output by the second power distribution unit 400 into the power switching assembly 10 through the first connector 11. In the power switching assembly 10, the first voltage of the main circuit and the first voltage of the standby circuit can flow through the first signal layer 2 in the switching circuit board 101 and be output through the second connector 12.

The input end 21 of the first power supply unit 20 is electrically connected to the second connector 12, and the output end 22 is electrically connected to the electrical connector 32, so as to realize that the first power supply unit 20 is electrically connected between the power switching assembly 10 and the circuit board assembly 30. The conductive member 33 of the circuit board assembly 30 is electrically connected with the third connector 13 to achieve an electrical connection between the circuit board assembly 30 and the power adapter assembly 10. The first power supply unit 20 converts the first voltage of the main circuit and the first voltage of the standby circuit output by the second connector 12 into a second voltage, and the second voltage sequentially flows through the electrical connector 32, the internal wiring of the circuit board 31 and the conductive member 33, and is input into the power switching assembly 10 through the third connector 13. In the power switching assembly 10, the second voltage may flow through the second signal layer 3 in the switching circuit board 101 and be output through the fourth connector 14.

The first electric devices 40 are electrically connected with the fourth connector 14, so as to realize that the second voltage output by the fourth connector 14 supplies power to the first electric devices 40.

In addition, the first power distribution unit 300 and the second power distribution unit 400 are electrically connected to the second power supply unit 50, and the second power supply unit 50 is electrically connected to the second electric device 60. The second power supply unit 50 converts the first voltage of the main circuit output by the first power distribution unit 300 and the first voltage of the standby circuit output by the second power distribution unit 400 into a third voltage, and supplies power to the second electric device 60 by using the third voltage.

In the server 200 provided in the embodiment of the present application, the first connector 11 of the power switching assembly 10 is electrically connected to the first power distribution unit 300 and the second power distribution unit 400, so as to implement the first voltage access to the server 200. Meanwhile, the power switching assembly 10 is electrically connected with the first power supply unit 20, so that the first power distribution unit 300, the second power distribution unit 400 and the first power supply unit 20 are electrically connected, the electrical connection mode is simple, more cables are not needed, and the internal use space of the server 200 is saved.

The foregoing disclosure is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the claims hereof, as it is to be understood by those skilled in the art that all or part of the procedures described herein may be performed and that equivalent changes may be made thereto without departing from the scope of the claims.

Claims

1. The server is characterized by comprising a case, a first power supply unit, an electric device and a power switching assembly, wherein the first power supply unit, the electric device and the power switching assembly are all arranged in the case, and the power switching assembly comprises a switching circuit board, a first connector and a second connector;

The first connector and the second connector are both arranged on the switching circuit board and are electrically connected with the switching circuit board, the first connector is used for being electrically connected with a power distribution unit, and the power distribution unit is used for receiving a first voltage and inputting the first voltage to the first connector;

the second connector is further electrically connected with the input end of the first power supply unit, the output end of the first power supply unit is electrically connected with the electric device, and the first power supply unit is used for converting the first voltage into the second voltage so as to supply power for the electric device.

2. The server of claim 1, wherein the patch circuit board comprises a first signal layer, an input of the first signal layer being electrically connected to the first connector, and an output of the first signal layer being electrically connected to the second connector.

3. The server of claim 2, wherein the power adapter assembly further comprises a third connector and a fourth connector, each mounted to and electrically connected to the adapter circuit board; the third connector is electrically connected with the output end of the first power supply unit and is used for receiving the second voltage;

The switching circuit board further comprises a second signal layer, the second signal layer is arranged in an insulating mode with the first signal layer, the input end of the second signal layer is electrically connected with the third connector, the output end of the second signal layer is electrically connected with the fourth connector, and the fourth connector is further electrically connected with the electric device so as to provide the second voltage for the electric device.

4. The server of claim 3, wherein the interposer circuit board further comprises an intermediate insulating layer between the first signal layer and the second signal layer, the intermediate insulating layer having a thickness L1, L1 being greater than or equal to 0.4mm.

5. The server of claim 4, wherein the intermediate insulating layer comprises at least one sub-insulating layer having a thickness greater than or equal to 0.4mm.

6. The server of claim 4, wherein the intermediate insulating layer comprises at least two sub-insulating layers, at least two of the sub-insulating layers are stacked, and the withstand voltage of the transit circuit board is greater than or equal to 3000Vac.

7. The server of claim 3, wherein the interposer circuit board further comprises an intermediate insulating layer between the first signal layer and the second signal layer, the intermediate insulating layer comprising at least one sub-insulating layer, a thickness of a single sub-insulating layer being less than 0.4mm, a distance between the first signal layer and the second signal layer being L2,3mm +.l2 +.6 mm in a direction parallel to a surface of the interposer circuit board.

8. The server according to any one of claims 3 to 7, further comprising a circuit board assembly including a circuit board, an electrical connector and a conductive member, the electrical connector and the conductive member each being mounted to the circuit board and each being electrically connected to the circuit board, the output of the first power supply unit being electrically connected to the electrical connector, the conductive member being electrically connected to the third connector.

9. The server of any one of claims 2 to 6, wherein the first voltage is 220V ac and the second voltage is 48V or 54V dc.

10. The server for the whole cabinet is characterized by comprising a cabinet body, a first power distribution unit, a second power distribution unit and the server according to any one of claims 1 to 9, wherein the first power distribution unit, the second power distribution unit and the server are all installed on the cabinet body, the first power distribution unit and the second power distribution unit are all located outside the cabinet, and the first power distribution unit and the second power distribution unit are all electrically connected with the first connector and are all used for receiving a first voltage and inputting the first voltage to the first connector.