Power supply switching matching part, rack-mounted server mainboard and rack-mounted server

Abstract

The invention relates to a power supply switching matching part, a rack-mounted server mainboard and a rack-mounted server. The power supply adapter matching piece comprises a first power supply adapter plate which comprises a first substrate and a first power supply connector male head arranged on one side of the first substrate; the second power supply adapter plate comprises a second substrate and a first signal connector male head arranged on one side of the second substrate; the flow guide part is electrically connected with the bottom surface of the first substrate and the top surface of the second substrate and is used for forming a passage between the first substrate and the second substrate; and on the longitudinal section of the central point of the first power supply connector female head, a height difference exists between the cross section of the central point of the first power supply connector female head and the cross section of the central point of the first signal connector female head. By adopting the power supply switching matching part, the development period can be shortened and the consumption of manpower and material resources can be reduced when business scene changes are coped with.

Description

Technical Field

[0001] The present application relates to the technical field of servers, and in particular to a power adapter fitting, a rack-mounted server motherboard and a rack-mounted server. Background Art

[0002] The appearance dimensions of rack-mounted server chassis are usually standardized and can be divided into several standards such as 1U, 2U, 3U, 4U, etc. Standardized rack-mounted server chassis can be compactly installed in the cabinet, with high space utilization, and are particularly suitable for environments with limited space and high-density computing. Therefore, they are widely used in data centers and enterprise-level server rooms.

[0003] However, it is precisely because of the standardized structural design of rack servers that their scalability is poor and their business application scope is limited. For example, the original rack server is a 2U rack server chassis with moderate storage and computing power. When the business scenario changes to higher-density computing requirements or non-standard applications, the scalable space of the 2U rack server chassis is insufficient to accommodate more hardware, such as storage devices, CPU (Central Processing Unit), GPU (Graphics Processing Unit), Switch board, Riser card (a server expansion card), etc.

[0004] Traditional technologies have great difficulties in coping with changes in business scenarios. Summary of the invention

[0005] Based on this, it is necessary to provide a power adapter component that can shorten the development cycle and reduce the consumption of manpower and material resources to cope with changes in business scenarios.

[0006] In a first aspect, the present application provides a power transfer fitting, including:

[0007] A first power adapter board, comprising a first substrate and a first power connector male head arranged on one side of the first substrate, and used for plugging with a first power connector female head of an original rack-mounted server mainboard;

[0008] A second power adapter board, comprising a second substrate, and a first signal connector male head arranged on one side of the second substrate, and used for plugging with the first signal connector female head of the original rack-mounted server mainboard;

[0009] A flow guide, electrically connected to the bottom surface of the first substrate and the top surface of the second substrate, respectively, and used to form a passage between the first substrate and the second substrate;

[0010] Among them, on the longitudinal section of the center point of the first power connector female head, there is a height difference between the cross-section of the center point of the first power connector female head and the cross-section of the center point of the first signal connector female head; the power adapter fitting is used to enhance the hardware expansion capability of the original rack-mounted server motherboard.

[0011] In one embodiment, the first power adapter board further includes a first auxiliary signal connector disposed on the top surface of the first substrate; the second power adapter board further includes a second auxiliary signal connector and a second power connector female head disposed on the top surface of the second substrate; the original rack-mounted server motherboard includes a third substrate, and a third auxiliary signal connector disposed on the top surface of the third substrate;

[0012] Among them, the first auxiliary signal connector and the second auxiliary signal connector are connected by a cable, the first power connector male head has a pin for transmitting signals, the cable connection, the pin and the first power connector female head are used to transmit signals between the power supply unit and the original rack-mounted server motherboard; the second power connector male head arranged on one side of the power supply unit is plugged into the second power connector female head.

[0013] In one embodiment, the guide member is a bus bar, and the bus bar is electrically connected through the bottom surface of the first substrate and the top surface of the second substrate respectively.

[0014] In one embodiment, the first power adapter board also includes a first bright copper surface arranged on the bottom surface of the first substrate; the second power adapter board also includes a second bright copper surface arranged on the top surface of the second substrate, and the bus bar is in contact and connected with the first bright copper surface and the second bright copper surface respectively.

[0015] In one embodiment, the first power adapter plate further includes a first through hole; the second power adapter plate further includes a second through hole; the bus bar includes a third through hole;

[0016] The first through hole, the second through hole and the third through hole are used to realize the threaded connection between the first power adapter board, the second power adapter board and the bus bar. The first power adapter board, the second power adapter board and the bus bar form a stacked structure through the threaded connection, and the bus bar is located between the bottom surface of the first substrate and the top surface of the second substrate.

[0017] In one of the embodiments, the power adapter fitting further includes an anti-loosening member, and the anti-loosening member is used to prevent the laminated structure from loosening.

[0018] In one embodiment, the second power adapter plate further includes a positioning hole concentric with the second through hole, and the bus bar includes a positioning boss concentric with the third through hole; the positioning boss is used to be inserted into the positioning hole to position and install the bus bar and the second power adapter plate.

[0019] In one embodiment, the bus bar is welded to the top surface of the second substrate.

[0020] In a second aspect, the present application further provides a rack-mounted server motherboard, comprising the power adapter fitting as described above and the original rack-mounted server motherboard.

[0021] In a third aspect, the present application further provides a rack-mounted server, wherein the rack-mounted server comprises the rack-mounted server mainboard as described above.

[0022] The power adapter fitting includes a first power adapter board, a second power adapter board and a flow guide. The first power adapter board includes a first substrate, and the second power adapter board includes a second substrate. The power adapter fitting is connected to the first power connector female head of the original rack-mounted server motherboard through a first power connector male head arranged on one side of the first substrate, and the first signal connector male head arranged on one side of the second substrate is connected to the first signal connector female head of the original rack-mounted server motherboard. The first substrate and the second substrate are connected through the flow guide, which solves the problem of being unable to be plugged in due to the break, thereby realizing the plug-in matching between the power adapter fitting and the power connector female head and the first signal connector female head of the original rack-mounted server motherboard, thereby shortening the development cycle and reducing the consumption of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A structure of a rack-mounted server involved in this application;

[0025] Figure 1a for Figure 1 A longitudinal section of the Zhongyuan rack-mounted server motherboard;

[0026] Figure 1b for Figure 1 A structure of a first power adapter board;

[0027] Figure 1c for Figure 1A structure of a second power adapter board;

[0028] Figure 2 for Figure 1 Another structure of the first power adapter board;

[0029] Figure 3 for Figure 1 Another structure of the second power adapter board;

[0030] Figure 4 for Figure 1 Another structure of the second power adapter board;

[0031] Figure 5 A structure of a power adapter fitting according to an embodiment;

[0032] Figure 6 for Figure 1 Another structure of the second power adapter board;

[0033] Figure 7 A schematic diagram of a matching relationship of a power adapter matching component of an embodiment;

[0034] Figure 8a for Figure 1 Another structure of the second power adapter board;

[0035] Figure 8b A structure of a bus bar in a power transfer fitting according to an embodiment.

[0036] Description of reference numerals:

[0037] 1. New rack-mount servers;

[0038] 2. New rack-mount server chassis;

[0039] 3. Original rack-mounted server motherboard; 31. Third substrate; 32. First signal connector female head; 33. Cross section of the center point of the first signal connector female head 32; 34. Cross section of the center point of the first power connector female head 35; 35. First power connector female head;

[0040] 4. First power adapter board; 41. First substrate; 42. First power connector male head; 43. First auxiliary signal connector;

[0041] 5. Second power adapter board; 51. Second substrate; 52. First signal connector male head; 53. Second auxiliary signal connector; 54. Second power connector female head; 55. Other power connectors; 56. Integrated circuit device; 57. Second signal connector female head; 58. Second bright copper surface; 59. Positioning hole;

[0042] 6. A first signal connector unit;

[0043] 7. Power supply transfer fitting; 71. Bus bar; 711. Positioning boss; 72. Threaded fitting. DETAILED DESCRIPTION

[0044] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0046] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0047] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0048] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0049] As pointed out in the background art, for rack-mounted servers, when the business scenario changes to higher-density computing requirements or non-standard applications, it is very difficult to cope with the change in the business scenario in traditional technologies.

[0050] In order to deal with this difficulty, traditional technologies often use larger rack servers and corresponding rack server motherboards to adapt to the changing business scenarios when dealing with the above-mentioned business scenario changes. However, the development cycle of developing new rack server motherboards is long and consumes huge manpower and material resources.

[0051] In this regard, the applicant has found that Figure 1 As shown, limited by the size of the original rack-mounted server chassis of the original rack-mounted server, when responding to the above-mentioned changes in business scenarios, the new rack-mounted server 1 needs to use a new rack-mounted server chassis 2 of a larger size (such as a 4U rack-mounted server chassis), but there is no need to develop a new rack-mounted server motherboard. Instead, the original rack-mounted server motherboard 3 of the original rack-mounted server (such as a 2U rack-mounted server chassis) can be powered by a power adapter board to accommodate the expanded hardware. Among them, the original rack-mounted server motherboard 3 includes a third substrate 31, a first signal connector female head 32 arranged on one side of the third substrate 31, and a first power connector female head 35 arranged on the top surface of the third substrate 31.

[0052] However, in the process of developing the power adapter board, the applicant discovered that, on the longitudinal section of the center point of the first power connector female head 35 of the original rack-mounted server motherboard 3, there is a height difference between the cross section 34 of the center point of the first power connector female head 35 of the original rack-mounted server motherboard 3 and the cross section 33 of the center point of the first signal connector female head 32, that is, there is a step difference. As a result, the power adapter board cannot be plugged and matched with the first power connector female head 35 and the first signal connector female head 32. For example, after the power connector male head of the power adapter board is successfully plugged with the first power connector female head 35, the signal connector male head of the power adapter board cannot be plugged with the first signal connector female head 32 due to the step difference.

[0053] In order to solve the problem of the step difference, in an exemplary embodiment, a power adapter fitting 7 is provided, and the power adapter fitting 7 includes a first power adapter board 4, a second power adapter board 5 and a guide. The first power adapter board 4 includes a first substrate 41, and the second power adapter board 5 includes a second substrate 51. The power adapter fitting 7 is connected to the first power connector female head 35 of the original rack-mounted server motherboard 3 through the first power connector male head 42 arranged on one side of the first substrate 41, and the first signal connector male head 52 arranged on one side of the second substrate 51 is connected to the first signal connector female head 32 of the original rack-mounted server motherboard 3. The first substrate 41 and the second substrate 51 are connected through the guide, which solves the problem of being unable to be plugged in due to the step difference, thereby realizing the plug-in matching of the power adapter fitting 7 with the power connector female head and the first signal connector female head 32 of the original rack-mounted server motherboard 3, thereby shortening the development cycle and reducing the consumption of manpower and material resources.

[0054] In addition, the power adapter fitting 7 can be detachable, including the power adapter fitting 7 itself being detachable and being detachable from the original rack-mounted server mainboard 3 .

[0055] Among them, it is detachable from the original rack-mounted server motherboard 3, that is, connected to the original rack-mounted server motherboard 3 through a connector, which can avoid changing the form of the original rack-mounted server motherboard 3, so that it can be switched and used in different business scenarios.

[0056] Among them, the power adapter fitting 7 can be disassembled into the first power adapter board 4, the second power adapter board 5 and the guide member. The self-detachability can avoid the overall large plug-in and pull-out force when the power adapter fitting 7 is plugged in and out of the original rack-mounted server motherboard 3. Specifically, it is because the first power adapter board 4 and the second power adapter board 5 can be plugged in and out of the original rack-mounted server motherboard 3 independently, rather than plugging in and out of the power adapter fitting 7 as a whole with the original rack-mounted server motherboard 3.

[0057] In addition, due to the problem of step difference, if the power adapter 7 is used as a whole to be plugged and unplugged from the original rack-mounted server motherboard 3, it will be difficult to plug and unplug the power adapter 7 from the original rack-mounted server motherboard 3 because the power connector female head and the first signal connector female head 32 are not in the same plane. Therefore, the self-detachability can also reduce the difficulty of plugging and unplugging.

[0058] like Figure 1a , Figure 1b and Figure 1c As shown, the power adapter 7 includes a first power adapter plate 4, a second power adapter plate 5 and a flow guide (not shown in the figure).

[0059] The first power adapter board 4 includes a first substrate 41 and a first power connector male head 42 arranged on one side of the first substrate 41 , and is used for plugging with the first power connector female head 35 of the original rack-type server mainboard 3 .

[0060] Exemplarily, the first power connector male head 42 and the first power connector female head 35 are plugged into each other to form a first power connector unit, which is used to achieve electrical connection between the first power adapter board 4 and the original rack-mounted server mainboard 3 .

[0061] The first power connector unit includes but is not limited to a CRPS (Compact Redundant Power Supply) connector unit and an EPS power connector unit (Entry-level Power Supply).

[0062] The second power adapter board 5 includes a second substrate 51 and a first signal connector male head 52 disposed on one side of the second substrate 51 , and is used for plugging with the first signal connector female head 32 of the original rack-type server mainboard 3 .

[0063] Exemplarily, the first signal connector male head 52 and the first signal connector female head 32 are plugged into each other to form a first signal connector unit 6, which is used to realize the communication connection between the second power adapter board 5 and the original rack-mounted server motherboard 3. For example, the first signal connector unit 6 is a Gen-Z connector (compliant with the Gen-Z high-speed interconnection standard), a customized connector, a connector of other high-speed interconnection standards different from the Gen-Z high-speed interconnection standard, etc.

[0064] The flow guide is electrically connected to the bottom surface of the first substrate 41 and the top surface of the second substrate 51 , respectively, and is used to form a passage between the first substrate 41 and the second substrate 51 .

[0065] Exemplarily, the flow guide is located between the first power adapter plate 4 and the second power adapter plate 5 .

[0066] In the longitudinal section of the center point of the first power connector female connector 35 , there is a height difference between the cross section 34 of the center point of the first power connector female connector 35 and the cross section 33 of the center point of the first signal connector female connector 32 .

[0067] The power adapter fitting 7 is used to enhance the hardware expansion capability of the original rack-mounted server mainboard 3 .

[0068] The first signal connector unit 6 is connected to the original rack-mounted server mainboard 3 via a buckle.

[0069] like Figure 2 As shown, the first power adapter board 4 also includes a first auxiliary signal connector 43 disposed on the top surface of the first substrate 41; Figure 3 As shown, the second power adapter board 5 also includes a second auxiliary signal connector 53 and a second power connector female head 54 arranged on the top surface of the second substrate 51;

[0070] Among them, the first auxiliary signal connector 43 and the second auxiliary signal connector 53 are connected by a cable, the first power connector male head 42 has a pin for transmitting signals, and the cable connection, the pins and the first power connector female head 35 are used to transmit signals between the power supply unit (PSU, Power Supply Unit) and the original rack-mounted server motherboard 3; the second power connector male head arranged on one side of the power supply unit is plugged into the second power connector female head 54.

[0071] Among them, the auxiliary signal connector includes but is not limited to AUX (Auxiliary, auxiliary interface) connector and customized connector.

[0072] The number of the second power connector female heads 54 is not limited in this embodiment. For example, if four power supply units are provided, then the number of the second power connector female heads 54 is also four, and a 2+2 or 3+1 redundancy design can be implemented accordingly, thereby ensuring the stability of the entire system (including the rack-mounted server motherboard (including the original rack-mounted server motherboard 3 and the power adapter 7) and other hardware (such as storage devices, CPU, GPU, etc.)).

[0073] Exemplarily, the signal transmitted by the power supply unit to the original rack-mounted server motherboard 3 is a PG (Power Good) signal, which is used to indicate that the power supply unit has stabilized and is ready to supply power to the motherboard. The signal transmitted by the original rack-mounted server motherboard 3 to the power supply unit is a PM (Power Management) signal, which is used to control and manage the power status of the system, such as standby, sleep, wake-up, etc.

[0074] Exemplarily, when returning to the original business scenario before the change, the original rack-mounted server mainboard 3 can independently control the working state of the power supply unit through the cable connected to the auxiliary signal connector.

[0075] Exemplarily, the current flowing out of the power supply unit flows into the second power adapter board 5 via the second power connector female head 54, then flows into the first power adapter board 4 via the passage between the first power adapter board 4 and the second power adapter board 5 formed by the guide member, and finally flows into the original rack-mounted server motherboard 3 via the first power connector male head 42 and the first power connector female head 35 plugged into the first power connector male head 42, thereby realizing power supply for the original rack-mounted server motherboard 3.

[0076] In addition, if Figure 4 As shown, the second power adapter board 5 also includes other power connectors 55 arranged on the top surface of the second substrate 51, which are used to power the extended hardware (such as CPU, GPU, etc.); integrated circuit devices 56 (such as CPLD (Complex Programmable Logic Device), ASIC (Application Specific Integrated Circuit), etc.) arranged on the top surface of the second substrate 51, which are used to manage the on-board signals of the second power adapter board 5; a second signal connector female head 57 arranged on one side of the second substrate 51, which is plugged into the second signal connector male head, and is used to achieve communication connection with BMC (Baseboard Management Controller).

[0077] In one embodiment, the guide member may be a cable, and corresponding interfaces may be respectively provided on the first power adapter board 4 and the second power adapter board 5, so that a passage between the first power adapter board 4 and the second power adapter board 5 is formed through the cable and the corresponding interface.

[0078] In another embodiment, if Figure 5 As shown, the guide member may be a bus bar 71 , and the bus bar 71 is electrically connected through the bottom surface of the first substrate 41 and the top surface of the second substrate 51 .

[0079] The bus bar 71 may be a copper, silver or other bus bar 71 , or a square, rectangular or other bus bar 71 .

[0080] The busbars 71 are designed as 1+1 redundancy and are arranged in pairs with opposite polarities, that is, one pair of busbars 71 in the two pairs of busbars 71 can meet the power consumption requirement of the rack-mounted server motherboard system.

[0081] In one embodiment, the first power adapter board 4 further includes a first bright copper surface disposed on the bottom surface of the first substrate 41 .

[0082] like Figure 6 As shown, the second power adapter board 5 further includes a second bright copper surface 58 disposed on the top surface of the second substrate 51 , and the busbar 71 is in contact and connected with the first bright copper surface and the second bright copper surface 58 , respectively.

[0083] The second bright copper surfaces 58 are arranged in pairs, including at least one pair, and the specific number of pairs is not limited in this embodiment.

[0084] In one embodiment, if Figure 7 As shown, the first power adapter board 4 further includes a first through hole; the second power adapter board 5 further includes a second through hole; the bus bar 71 further includes a third through hole;

[0085] The first through hole, the second through hole and the third through hole are used to realize the threaded connection between the first power adapter board 4, the second power adapter board 5 and the bus bar 71. The first power adapter board 4, the second power adapter board 5 and the bus bar 71 are threadedly connected to form a stacked structure. The bus bar 71 is located between the bottom surface of the first substrate 41 and the top surface of the second substrate 51.

[0086] The threaded connection is achieved by threading the first power adapter board 4, the second power adapter board 5 and the bus bar 71 through the threaded member 72. Each bus bar 71 corresponds to at least one threaded member 72.

[0087] Among them, the first through hole and the second through hole can be threaded holes, and the third through hole can be a smooth hole, which can be connected by screws; or the first through hole, the second through hole and the third through hole can all be threaded holes, which can be connected by screws; or the second through hole can be a threaded hole, and the first through hole and the third through hole can all be smooth holes, which can be connected by screws; or the first through hole, the second through hole and the third through hole can all be smooth holes, which can be connected by bolts.

[0088] In one embodiment, the power adapter fitting 7 further includes an anti-loosening member, which is used to prevent the laminated structure from loosening.

[0089] Among them, the anti-loosening parts include but are not limited to spring washers, locking washers, and elastic washers.

[0090] In one embodiment, if Figure 8a and Figure 8b As shown, the second power adapter plate 5 also includes a positioning hole 59 concentric with the second through hole, and the bus bar 71 also includes a positioning boss 711 concentric with the third through hole; the positioning boss 711 is used to insert into the positioning hole 59 to position and install the bus bar 71 and the second power adapter plate 5.

[0091] The cooperation between the positioning boss 711 and the positioning hole 59 may be a transition fit or an interference fit.

[0092] In one embodiment, the bus bar 71 is welded to the top surface of the second substrate 51. The first power adapter board 4 and the second power adapter board 5 can be easily connected by welding, so as to assemble the power adapter fitting 7.

[0093] It is understandable that the above-mentioned power adapter fitting 7 can also adopt other forms, not limited to the forms mentioned in the above embodiments, as long as it can achieve the technical effect of shortening the development cycle and reducing the consumption of manpower and material resources when responding to changes in business scenarios.

[0094] Based on the same inventive concept, the embodiment of the present application further provides a rack-mounted server motherboard including a power adapter fitting 7 and an original rack-mounted server motherboard 3. The implementation scheme for solving the problem provided by the rack-mounted server motherboard is similar to the implementation scheme recorded in the above-mentioned power adapter fitting 7, so the specific limitations in this embodiment can refer to the limitations of the power adapter fitting 7 in the above text, and will not be repeated here.

[0095] Based on the same inventive concept, the embodiment of the present application further provides a rack server including an original rack server motherboard 3. The implementation solution provided by the rack server to solve the problem is similar to the implementation solution recorded in the above-mentioned original rack server motherboard 3, so the specific limitations in this embodiment can refer to the above-mentioned limitations on the original rack server motherboard 3, which will not be repeated here.

[0096] In the description of this specification, the description with reference to the terms "in one embodiment", "in another embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0097] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A power adapter, characterized in that: include: A first power adapter board, comprising a first substrate and a first power connector male head arranged on one side of the first substrate, and used for plugging with a first power connector female head of an original rack-mounted server mainboard; A second power adapter board, comprising a second substrate, and a first signal connector male head arranged on one side of the second substrate, and used for plugging with the first signal connector female head of the original rack-mounted server mainboard; A flow guide, electrically connected to the bottom surface of the first substrate and the top surface of the second substrate, respectively, and used to form a passage between the first substrate and the second substrate; Among them, on the longitudinal section of the center point of the first power connector female head, there is a height difference between the cross-section of the center point of the first power connector female head and the cross-section of the center point of the first signal connector female head; the power adapter fitting is used to enhance the hardware expansion capability of the original rack-mounted server motherboard.

2. The power adapter according to claim 1, characterized in that: The first power adapter board further includes a first auxiliary signal connector disposed on the top surface of the first substrate; the second power adapter board further includes a second auxiliary signal connector and a second power connector female head disposed on the top surface of the second substrate; Among them, the first auxiliary signal connector and the second auxiliary signal connector are connected by a cable, the first power connector male head has a pin for transmitting signals, the cable connection, the pin and the first power connector female head are used to transmit signals between the power supply unit and the original rack-mounted server motherboard; the second power connector male head arranged on one side of the power supply unit is plugged into the second power connector female head.

3. The power adapter according to claim 2, characterized in that: The guide member is a bus bar, and the bus bar is electrically connected through the bottom surface of the first substrate and the top surface of the second substrate respectively.

4. The power adapter according to claim 3, characterized in that: The first power adapter board also includes a first bright copper surface arranged on the bottom surface of the first substrate; the second power adapter board also includes a second bright copper surface arranged on the top surface of the second substrate, and the busbars are respectively in contact with the first bright copper surface and the second bright copper surface.

5. The power adapter according to claim 3, characterized in that: The first power adapter plate further includes a first through hole; the second power adapter plate further includes a second through hole; the bus bar includes a third through hole; The first through hole, the second through hole and the third through hole are used to realize the threaded connection between the first power adapter board, the second power adapter board and the bus bar. The first power adapter board, the second power adapter board and the bus bar form a stacked structure through the threaded connection, and the bus bar is located between the bottom surface of the first substrate and the top surface of the second substrate.

6. The power adapter according to claim 5, characterized in that: The power supply adapter fitting also includes an anti-loosening member, and the anti-loosening member is used to prevent the laminated structure from loosening.

7. The power adapter according to claim 5, characterized in that: The second power adapter plate also includes a positioning hole concentric with the second through hole, and the bus bar includes a positioning boss concentric with the third through hole; the positioning boss is used to be inserted into the positioning hole to position and install the bus bar and the second power adapter plate.

8. The power adapter according to claim 3, characterized in that: The bus bar is welded to the top surface of the second substrate.

9. A rack-mounted server motherboard, characterized in that: It comprises the power supply adapter as claimed in any one of claims 1 to 8 and the original rack-mounted server mainboard.

10. A rack-mounted server, characterized in that: The rack-mounted server comprises the rack-mounted server mainboard as claimed in claim 9.

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