CN213457970U - Server power supply board, server power supply module and server - Google Patents

Abstract

The application provides a server power supply board, a server power supply module and a server. The server power supply board includes: hot plug circuit, power daughter card and isolation transformer circuit. The hot plug circuit is arranged on the first part. And the first end of the hot plug circuit is electrically connected with the power supply bus. The power supply bus is disposed at the second portion. The power daughter card is arranged on the first part. And the first end of the power daughter card is electrically connected with the second end of the hot plug circuit. And the second end of the power daughter card is used for providing working voltage for the server mainboard. The isolation transformer circuit is arranged on the first part. The first end of the isolation transformation circuit is electrically connected with the first end of the hot plug circuit. And the second end of the isolation transformation circuit is used for providing starting voltage for the server mainboard.

Description

Server power supply board, server power supply module and server

Technical Field

The application relates to the technical field of servers, in particular to a server power supply board, a server power supply module and a server.

Background

The blade server as an important form in the server field has wide application in the fields of high-performance computing, internet, cloud computing and the like. The appearance of liquid-cooled servers greatly improves the power level of the servers and alleviates the need for high power by the servers. However, the increase in blade density and performance is severely limited by the power supply capability and power supply heat dissipation capability of the system power supply as the power level of the server increases.

At present, the power supply scheme of the mainstream whole cabinet server is still 12V bus input, if the 12V scheme is adopted, 32 computing nodes (16 liquid cooling blades, 2 nodes per blade and about 2500W of single-chip node power) are required to be deployed in a 10U (U refers to the size, 1U is 4.45 cm) space, the total power is as high as 80KW, and the current size is 6667A, which is not imaginable. Even if the transmission impedance of the 12V copper bar is 0.1mR, 4.4KW loss can be caused. If the bus voltage is increased to 48V, the voltage is increased by 4 times, the current is reduced by 4 times, and the transmission loss is reduced to 1/16 which is about 275W. As such, the adoption of 48V power supply scheme is a future development trend.

At present, the existing server adopts a 48V power supply scheme, and the defects that the voltage is overlarge during initial power supply and a server mainboard is easily damaged exist.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a server power supply board, a server power supply module and a server, aiming at the problems that the server adopts a 48V power supply scheme and the server mainboard is easily damaged due to overlarge voltage during initial power supply.

The utility model provides a server power supply board, server mainboard submergence in the liquid cooling environment, server power supply board is including being arranged in the first portion in the liquid cooling environment and being located the second portion outside the liquid cooling environment, server power supply board includes:

the hot plug circuit is arranged on the first part, the first end of the hot plug circuit is used for being electrically connected with a power supply bus, and the power supply bus is arranged on the second part;

the power daughter card is arranged on the first part, a first end of the power daughter card is electrically connected with a second end of the hot plug circuit, and the second end of the power daughter card is used for providing working voltage for the server mainboard; and

and the isolation transformation circuit is arranged on the first part, the first end of the isolation transformation circuit is electrically connected with the first end of the hot plug circuit, and the second end of the isolation transformation circuit is used for providing starting voltage for the server mainboard.

In this embodiment, will hot plug circuit, power daughter card and keep apart vary voltage circuit and all set up the first portion, simultaneously through hot plug circuit with the cooperation of power daughter card provides operating voltage to the server mainboard, make server power supply board under the prerequisite of guaranteeing power supply needs and heat dissipation, the rethread keeps apart vary voltage circuit and converts the supply voltage that the power supply bus provided into starting voltage, thereby avoids the server mainboard damages, improves the reliability of power supply.

In one embodiment, the server power supply board further includes:

the first plug connector is arranged on the first part, the first end of the first plug connector is used for being electrically connected with the power supply bus, and the second end of the first plug connector is connected with the first end of the hot plug circuit and the first end of the isolation transformation circuit in a common mode.

In this embodiment, the server power supply board and the power supply bus have a hot plug function by setting the first plug connector.

In one embodiment, the server power supply board further includes:

and the second plug connector is arranged on the first part, the first end of the second plug connector is electrically connected with the second end of the power daughter card, and the second end of the second plug connector is used for being electrically connected with the server mainboard.

In this embodiment, the server power supply board and the server motherboard have a hot plug function by setting the second plug connector.

In one embodiment, the server power supply board further includes:

and the protection circuit is arranged on the second part, the first end of the protection circuit is used for being electrically connected with the power supply bus, and the second end of the protection circuit is electrically connected with the first end of the hot plug circuit.

In this embodiment, through setting up protection circuit avoids server power supply board damages, provides the security.

In one embodiment, the surface of the power supply board of the server is sprayed with an insulating layer.

In this embodiment, the insulating layer is sprayed on the surface of the power supply board of the server power supply, so that impurities in a liquid cooling environment are prevented from being accumulated on the surface of the power supply board of the server power supply, and the safety is improved.

In one embodiment, the operating voltage is linear with a supply voltage provided by the supply bus, and the start-up voltage is less than the operating voltage.

In this embodiment, the operating voltage is linearly related to the supply voltage provided by the supply bus, so that the operating voltage can be changed by adjusting the supply voltage.

In one embodiment, the number of the power daughter cards is multiple, and the multiple power daughter cards are connected in parallel.

In this embodiment, the number of the power source daughter cards is set to be plural, and the plural power source daughter cards are connected in parallel with each other, so that the reliability of power supply can be improved.

A server power supply module, comprising:

the server power supply board described in any of the above embodiments; and

the anti-interference shell is arranged on the first part, the hot plug circuit, the power daughter card and the isolation transformation circuit are arranged in the anti-interference shell, and the anti-interference shell is fixedly connected with the power supply board of the server.

In this embodiment, will hot plug circuit, power daughter card and keep apart vary voltage circuit and all set up the first portion, simultaneously through hot plug circuit with the cooperation of power daughter card provides operating voltage to the server mainboard, make server power supply board under the prerequisite of guaranteeing power supply needs and heat dissipation, the rethread keeps apart vary voltage circuit and converts the supply voltage that the power supply bus provided into starting voltage, thereby avoids the server mainboard damages, improves the reliability of power supply. Simultaneously, the anti-interference capacity can be improved by arranging the anti-interference shell.

In one embodiment, the number of the server power supply boards is two, and the total output power of each server power supply board is 5 KW.

In this embodiment, will the quantity of server power supply board sets up to two, makes server power supply module can provide 10 KW's power supply ability, thereby can satisfy completely the server mainboard improves the reliability of power supply to power and redundant demand.

A server, comprising:

the server power supply module of any of the above embodiments; and

the server mainboard is electrically connected with the server power supply module, and is immersed in the liquid cooling environment.

In this embodiment, the hot plug circuit, the power daughter card and the isolation transformer circuit in the server power supply module are all set up in the first portion, and simultaneously through the cooperation of the hot plug circuit and the power daughter card, working voltage is provided to the server motherboard, so that the server power supply board converts the supply voltage provided by the power supply bus into starting voltage through the isolation transformer circuit on the premise of guaranteeing the power supply requirement and heat dissipation, thereby avoiding the damage of the server motherboard and improving the reliability of power supply.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic circuit diagram of a server power supply board according to an embodiment of the present disclosure;

FIG. 2 is a block circuit diagram of a server power supply board according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a first male plug according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a first female head according to another embodiment of the present application;

fig. 5 is a schematic structural diagram of a second male plug according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a second female head according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a server power supply module according to an embodiment of the present application;

fig. 8 is a circuit block diagram of a server according to an embodiment of the present application.

Description of reference numerals:

10. a server power supply board; 101. a server motherboard; 102. a power supply bus; 100. a hot plug circuit; 110. a first plug connector; 120. a second plug connector; 20. a server power supply module; 21. an interference-proof housing; 200. a power daughter card; 30. a server; 300. an isolation transformer circuit; 400. and a protection circuit.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.

The numbering of the components as such, e.g., "first", "second", etc., is used herein for the purpose of describing the objects only, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an embodiment of the present application provides a server power supply board 10 applied to a server motherboard 101. The server motherboard 101 is immersed in a liquid-cooled environment. The server power supply board 10 includes a first portion located in the liquid-cooled environment and a second portion located outside the liquid-cooled environment. Wherein the first portion is mountable within a blade housing and submersible in a liquid-cooled environment of a liquid.

The server power supply board 10 includes: hot swap circuit 100, power daughter card 200, and isolation transformer circuit 300. The hot swap circuit 100 is disposed in the first portion. The first end of the hot swap circuit 100 is used to electrically connect with the power supply bus 102. The power supply bus bar 102 is provided to the second portion. The power daughter card 200 is disposed at the first portion. The first end of the power daughter card 200 is electrically connected to the second end of the hot plug circuit 100. The second end of the power daughter card 200 is configured to provide a working voltage for the server motherboard 101. The isolation transformer circuit 300 is disposed in the first portion. The first end of the isolation transformer circuit 300 is electrically connected to the first end of the hot swap circuit 100. The second end of the isolation transformer circuit 300 is used for providing a starting voltage for the server motherboard 101.

It can be understood that the specific circuit topology of the hot swap circuit 100 is not limited, as long as the function of reducing the transient inrush current and avoiding damage to the subsequent input circuit is provided during the hot swap process. In one embodiment, the hot swap circuit 100 may comprise a switch tube, a self-healing protection wire, and a controller. In one embodiment, the hot plug circuit 100 may also include: a resistor, a switching circuit and a capacitor. Specifically, the number of the resistors may be plural, and the plural resistors may be connected in series and/or in parallel with each other. The instantaneously generated surge current can be limited by the resistor.

In one embodiment, the switching circuit may be an IGBT (Insulated Gate Bipolar Transistor). In one embodiment, the switch circuit may also be a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET). In one embodiment, the capacitor is slowly charged through an RC buffer circuit formed by a resistor and the capacitor. When the charging reaches the target voltage, the switching circuit is turned on, and the server power supply board 10 can normally output power to the server motherboard 101. By arranging the hot plug circuit 100, instantaneous impact current can be reduced when hot plug action is performed between the server power supply board 10 and the power supply bus 102, so that a rear-stage input circuit is prevented from being damaged.

In one embodiment, the hot plug circuit 100 is disposed in the first portion, that is, the hot plug circuit 100 is disposed in a liquid cooling environment, so that when the hot plug circuit 100 works, the hot plug circuit 100 dissipates heat through a cooling medium in the liquid cooling environment, thereby improving the heat dissipation effect. In one embodiment, the cold medium may be a fluorinated liquid.

In one embodiment, the supply voltage provided by the supply bus 102 may be a high voltage, such as: the high voltage may be a voltage in the range of 230V to 390V. In one embodiment, the power bus 102 is disposed in the second portion. Namely, the power supply bus 102 is disposed outside the liquid-cooled environment. In one embodiment, the power bus 102 may be disposed in an air-cooled environment. The power supply bus 102 can be cooled by air cooling.

In one embodiment, the number of the power daughter cards 200 may be plural, and a plurality of the power daughter cards 200 are connected in parallel. The output power of the power source sub-cards 200 connected in parallel may be expanded, and the specific output power may be set according to the output power of each power source sub-card 200. If the output power of each power daughter card 200 is 600W, the total output power of 5 power daughter cards 200 is 3 KW. In addition, the power daughter cards 200 support parallel applications, and several other power daughter cards 200 can work normally when a single power daughter card 200 fails, so that the power supply reliability can be improved. In one embodiment, when the number of the power daughter cards 200 is multiple, the current equalizing units are disposed at the second end of the power daughter cards 200, and the output current of the power daughter cards 200 can be adjusted by the cooperation of the current equalizing units, so as to improve the reliability of power supply.

In one embodiment, the power supply voltage provided by the power supply bus 102 is converted into the operating voltage required by the server motherboard 101 through the power daughter card 200, so that the reliability of power supply can be improved. In one embodiment, the operating voltage may be 48 vdc. In one embodiment, the server power supply board 10 further includes a rectifying and filtering circuit. The rectifying and filtering circuit may be connected in series between the server motherboard 101 and the power daughter card 200. The working voltage is rectified and filtered through the rectifying and filtering circuit, so that electromagnetic conducted interference on the server mainboard 101 can be reduced, and the anti-interference capability of the working voltage is improved.

In one embodiment, the power daughter card 200 is disposed in the first portion, that is, the power daughter card 200 is disposed in a liquid cooling environment, so that when the power daughter card 200 works, the power daughter card 200 is cooled by a cooling medium in the liquid cooling environment, thereby improving a heat dissipation effect.

It is understood that the specific circuit topology of the isolated transformer circuit 300 is not limited as long as it has the function of converting the supply voltage provided by the supply bus 102 into the starting voltage. In one embodiment, the isolation transformer circuit 300 may be an isolation transformer. In one embodiment, the isolation transformer circuit 300 may also be a flyback transformer. In one embodiment, the starting voltage may be 12V dc voltage.

When the server power supply board 10 supplies power to the server motherboard 101, the isolation transformer circuit 300 converts the power supply voltage provided by the power supply bus 102 into the start voltage, and provides the start voltage to the server motherboard 101, thereby supplying power to the control part in the server motherboard 101. When the control portion in the server motherboard 101 is powered on, the switch in the hot-plug circuit 100 may be controlled to be turned on and off, so that the power daughter card 200 starts to provide the working voltage to the server motherboard 101. Therefore, the server power supply board 10 can convert the power supply voltage provided by the power supply bus 102 into the starting voltage through the isolation transformer circuit 300 on the premise of ensuring the power supply requirement, so that the server mainboard 101 is prevented from being damaged, and the reliability of power supply is improved.

In this embodiment, the hot plug circuit 100, the power daughter card 200, and the isolation transformer circuit 300 are all disposed on the first portion, and simultaneously, the hot plug circuit 100 and the power daughter card 200 cooperate to provide a working voltage to the server motherboard 101, so that the server power supply board 10 converts the power supply voltage provided by the power supply bus 102 into a starting voltage through the isolation transformer circuit 300 on the premise of ensuring the power supply requirement and heat dissipation, thereby preventing the server motherboard 101 from being damaged and improving the reliability of power supply.

Referring to fig. 2, in an embodiment, the server power supply board 10 further includes: a first plug connector 110. The first plug connector 110 is disposed on the first portion. A first end of the first plug connector 110 is used for electrically connecting with the power supply bus bar 102. The second terminal of the first plug connector 110 is connected to the first terminal of the hot swap circuit 100 and the first terminal of the isolation transformer circuit 300.

In one embodiment, the first plug connector 110 may include a first male head 111 and a first female head 112 (shown in fig. 3 and 4) that mates with the first male head 111. The first male connector 111 is disposed on the server power supply board 10, and the first female connector 112 is disposed on a server IO board adjacent to the server power supply board 10. Specifically, the first female connector 112 is electrically connected to the power supply bus 102. The first male terminal 111 is connected to the first terminal of the hot swap circuit 100 and the first terminal of the isolation transformer circuit 300. Through the cooperation of the first male connector 111 and the first female connector 112, a hot plug function can be provided between the server power supply board 10 and the server IO board. Namely, the hot plug function can be realized between the server power supply board 10 and the power supply bus bar 102 through the first plug connector 110.

In one embodiment, the server power supply board 10 further includes: a second plug connector 120. The second plug connector 120 is disposed on the first portion. The first end of the second plug connector 120 is electrically connected to the second end of the power daughter card 200. A second end of the second plug connector 120 is configured to be electrically connected to the server motherboard 101.

In one embodiment, the second plug connector 120 may include a second male head 121 and a second female head 122 (shown in fig. 5 and 6) that mates with the second male head 121. The second male connector 121 is disposed on the server power supply board 10, and the second female connector 122 is disposed on the server motherboard 101. Specifically, the second female connector 122 is electrically connected to the server motherboard 101. The second male tab 121 is electrically connected to a second end of the power daughter card 200. Through the cooperation of the second male plug 121 and the second female plug 122, a hot plug function can be provided between the server power supply board 10 and the server motherboard 101. That is, the first plug connector 110 can enable a hot plug function between the server power supply board 10 and the server motherboard 101.

Thus, by the cooperation of the first plug connector 110 and the second plug connector 120, when the server power supply board 10 is plugged into or pulled out from the server main board 101 and the power supply bus 102, the server power supply board 10 can be conveniently inserted into or pulled out.

Referring again to fig. 2, in an embodiment, the server power supply board 10 further includes: the protection circuit 400. The protection circuit 400 is disposed in the second portion. A first end of the protection circuit 400 is used for electrical connection with the power bus 102. The second terminal of the protection circuit 400 is electrically connected to the first terminal of the hot swap circuit 100.

It is to be understood that the specific circuit configuration of the protection circuit 400 is not limited as long as it has a function of protecting the server power supply board 10 in the first section from being damaged. In one embodiment, the protection circuit 400 may be a self-healing fuse. In one embodiment, the protection circuit 400 may also be a common fuse. By providing the protection circuit 400, the server power supply board 10 in the first portion can be prevented from being damaged due to an excessive voltage, and power supply safety can be improved.

In one embodiment, the arrangement of the protection circuit 400 in the second portion refers to: the protection circuit 400 is disposed outside the liquid-cooled environment. The protection circuit 400 is arranged outside the liquid cooling environment, so that the corrosion of the connection part of the protection circuit 400 and other lines by the fluorinated liquid in the liquid cooling environment can be avoided, and the power supply safety is improved.

In one embodiment, the server power supply board 10 further includes: and the input is a filtering energy storage circuit. The input filter tank circuit may be connected in series between the protection circuit 400 and the first end of the hot swap circuit 100. And the input filter tank circuit is arranged on the second part. Namely, the input filtering energy storage circuit is arranged outside the liquid cooling environment. In one embodiment, the input filter tank circuit may be a high voltage capacitor. Since the high-voltage capacitor is generally a large-volume electrolytic capacitor, the electrolytic capacitor is arranged in the second part, namely the electrolytic capacitor is arranged outside the liquid-cooled environment, so that the electrolyte can be prevented from releasing and polluting liquid, and the reliability of power supply is improved.

In one embodiment, the surface of the server power supply board 10 is sprayed with an insulating layer. The surface of the server power supply board 10 is protected in a manner that the insulating layer is sprayed on the surface of the server power supply board 10, so that impurities in a liquid cooling environment are prevented from being accumulated on the surface of the server power supply board 10, and the power supply safety is improved. In one embodiment, the insulating layer may be an insulating glue having an insulating function.

In one embodiment, the operating voltage is linear with a supply voltage provided by the supply bus 102, and the start-up voltage is less than the operating voltage. In one embodiment, the working voltage is linearly related to the supply voltage provided by the power supply bus, and the reliability of power supply can be improved by adjusting the supply voltage so as to change the working voltage.

Referring to fig. 7, another embodiment of the present application provides a server power supply module 20. The server power supply module 20 includes: the server power supply board 10 and the interference preventing case 21 described in any of the above embodiments. The interference preventing housing 21 is provided to the first portion. The hot plug circuit 100, the power daughter card 200 and the isolation transformer circuit 300 are all disposed in the anti-interference housing 21. The interference preventing housing 21 is fixedly connected with the server power supply board 10.

In one embodiment, the tamper proof housing 21 may be a squirrel cage housing. Specifically, the server power supply board 10 may be disposed in the squirrel cage housing. The server power supply board 10 and the squirrel cage housing may also form a space for accommodating the hot plug circuit 100, the power daughter card 200 and the isolation transformer circuit 300. The electromagnetic interference generated by the server power supply board 10 can be absorbed by the squirrel-cage shell, so that the interference to other high-speed signals is prevented.

In this embodiment, the hot plug circuit 100, the power daughter card 200, and the isolation transformer circuit 300 are all disposed on the first portion, and simultaneously, the hot plug circuit 100 and the power daughter card 200 cooperate to provide a working voltage to the server motherboard 101, so that the server power supply board 10 converts the power supply voltage provided by the power supply bus 102 into a starting voltage through the isolation transformer circuit 300 on the premise of ensuring the power supply requirement and heat dissipation, thereby preventing the server motherboard 101 from being damaged and improving the reliability of power supply. Meanwhile, the anti-interference capacity can be improved by arranging the anti-interference shell 21.

In one embodiment, the number of the server power supply boards 10 is two, and the total output power of each of the server power supply boards 10 is 5 KW. In this embodiment, the number of the server power supply boards 10 is set to two, so that the server power supply module 20 can provide 10KW of power supply capacity, thereby completely satisfying the requirements of the server main board 101 on power and redundancy, and improving the reliability of power supply.

Referring to fig. 8, another embodiment of the present application provides a server 30. The server 30 includes: the server power supply module 20 and the server motherboard 101 described in any of the above embodiments. The server motherboard 101 is electrically connected to the server power supply module 20. The server motherboard 101 is immersed in a liquid-cooled environment. In one embodiment, the server 30 may be a blade server. In one embodiment, the power supply board disposed at the input interface of the server power supply board 10 in the first portion may be sealed on the blade housing, so that the server power supply board 10 disposed in the first portion may perform heat dissipation by using fully-submerged liquid cooling, thereby improving the heat dissipation effect.

In this embodiment, the hot plug circuit 100, the power daughter card 200, and the isolation transformer circuit 300 in the server power module 20 are all disposed at the first portion, and simultaneously, through cooperation of the hot plug circuit 100 and the power daughter card 200, working voltage is provided to the server motherboard 101, so that the server power supply board 10 converts the power supply voltage provided by the power supply bus 102 into starting voltage through the isolation transformer circuit 300 on the premise of ensuring power supply requirements and heat dissipation, thereby preventing the server motherboard 101 from being damaged and improving reliability of power supply. Meanwhile, the anti-interference capacity can be improved by arranging the anti-interference shell 21.

To sum up, this application will hot plug circuit 100 the power daughter card 200 with keep apart vary voltage circuit 300 and all set up the first portion passes through simultaneously hot plug circuit 100 with the cooperation of power daughter card 200 provides operating voltage extremely server mainboard 101 makes server power supply board 10 is under the prerequisite of guarantee power supply needs and heat dissipation, and the rethread keeps apart vary voltage circuit 300 and converts the supply voltage that power supply bus 102 provided into starting voltage, thereby avoids server mainboard 101 damages, improves the reliability of power supply.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a server power supply board, server mainboard (101) submergence in the liquid cooling environment, its characterized in that, server power supply board is including the first portion that is arranged in the liquid cooling environment and being located second portion outside the liquid cooling environment, server power supply board includes:

the hot plug circuit (100) is arranged on the first part, a first end of the hot plug circuit (100) is used for being electrically connected with a power supply bus (102), and the power supply bus (102) is arranged on the second part;

the power daughter card (200) is arranged at the first part, a first end of the power daughter card (200) is electrically connected with a second end of the hot plug circuit (100), and the second end of the power daughter card (200) is used for providing working voltage for the server mainboard (101); and

the isolation transformer circuit (300) is arranged on the first part, a first end of the isolation transformer circuit (300) is electrically connected with a first end of the hot plug circuit (100), and a second end of the isolation transformer circuit (300) is used for providing starting voltage for the server mainboard (101).

2. The server power supply board of claim 1, further comprising:

the first plug connector (110) is arranged on the first portion, a first end of the first plug connector (110) is used for being electrically connected with the power supply bus (102), and a second end of the first plug connector (110) is connected with a first end of the hot plug circuit (100) and a first end of the isolation transformation circuit (300) in a common mode.

3. The server power supply board of claim 2, further comprising:

the second plug connector (120) is arranged on the first portion, a first end of the second plug connector (120) is electrically connected with a second end of the power daughter card (200), and a second end of the second plug connector (120) is used for being electrically connected with the server mainboard (101).

4. The server power supply board of claim 1, further comprising:

and the protection circuit (400) is arranged on the second part, the first end of the protection circuit (400) is used for being electrically connected with the power supply bus (102), and the second end of the protection circuit (400) is electrically connected with the first end of the hot plug circuit (100).

5. The server power supply board according to claim 1, wherein an insulating layer is sprayed on a surface of the server power supply board.

6. The server power supply board of claim 1, wherein the operating voltage is linear with a supply voltage provided by the supply bus (102), and the start-up voltage is less than the operating voltage.

7. The server power supply board according to claim 1, wherein the number of the power daughter cards (200) is plural, and a plurality of the power daughter cards (200) are connected in parallel.

8. The utility model provides a server power supply module which characterized in that includes:

the server power supply board of any one of claims 1-7; and

the anti-interference shell (21) is arranged on the first portion, the hot plug circuit (100), the power daughter card (200) and the isolation transformer circuit (300) are arranged in the anti-interference shell (21), and the anti-interference shell (21) is fixedly connected with the power supply board of the server.

9. The server power supply module of claim 8, wherein said server power supply boards are two in number and each said server power supply board has a total output power of 5 KW.

10. A server, comprising:

the server power supply module of claim 8 or 9; and

the server mainboard (101) is electrically connected with the server power supply module, and the server mainboard (101) is immersed in the liquid cooling environment.

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