Power supply circuit board and computer equipment

Abstract

A power supply circuit board and computer equipment relate to the technical field of power supply. Wherein a step-down transformer and a power input interface are arranged in the power supply circuit board, and the step-down transformer is electrically connected with the power input interface; the power supply input interface is used for receiving an input voltage, and the step-down transformer is used for converting the input voltage into a voltage required by the chip assembly; a first connector is also arranged in the power supply circuit board, and the first connector is electrically connected with the step-down transformer; the first connector is in butt joint with a second connector of a voltage stabilizer of the chip assembly, the position of the first connector is opposite to the position of the second connector, and the chip assembly obtains voltage needed by the chip assembly through the first connector.

Description

Technical Field

[0001] The present application relates to the field of power supply technology, and in particular to a power supply circuit board and a computer device. Background Art

[0002] As the processing power of computer equipment, such as servers or supercomputer clusters, increases, their power consumption also increases, and the power supply demand also increases significantly. For example, a single computer device with an E-level computing power requires tens of megawatts of power supply.

[0003] In addition, in scenarios such as high performance computing (HPC), artificial intelligence (AI) or supercomputing centers, as the demand for computing power continues to increase, the demand for devices and power supply in computing equipment is also increasing. For example, computing equipment in supercomputing clusters often need to use a power supply interface that supports high voltage (such as 380 volts (V)). The input 380V needs to be converted to 48V before the devices in the computing equipment are powered. However, 380V is an unsafe voltage. If a 380V power supply interface is directly used in computing equipment, there is a risk of electric shock when maintenance personnel replace or maintain components set on the printed circuit board (PCB) of computing equipment such as chips, which poses a safety hazard. Summary of the invention

[0004] The present application provides a power supply circuit board and a computer device. When a maintenance personnel replaces electronic components such as chips in a chip assembly, they only operate on a chip circuit board running at a low voltage. Therefore, there is no risk of high-voltage electric shock, and the safety hazards brought by traditional technologies can be eliminated. The technical solution is as follows:

[0005] On the one hand, a power supply circuit board is provided, wherein a voltage reducer and a power input interface are provided in the power supply circuit board, and the voltage reducer is electrically connected to the power input interface. The power input interface is used to receive an input voltage, for example, to receive a voltage transmitted by a power supply bus, and the voltage reducer is used to convert the input voltage into a voltage required by a chip component, for example, to convert a high voltage (such as 380V) input by the power supply bus into a low voltage (such as 12V) required by a voltage regulator of the chip component. In order to transmit voltage to the chip component, a first connector is also provided in the power supply circuit board, and the first connector is electrically connected to the voltage reducer, and is used to dock with a second connector of the voltage regulator of the chip component to transmit voltage to the voltage regulator. In order to achieve docking of the first connector and the second connector, the position of the first connector is set relative to the position of the second connector. After the first connector and the second connector are docked, the chip component can obtain the voltage required by the chip component through the first connector.

[0006] From the above description, it can be seen that the technical solution to be protected by this application decouples the power supply circuit board from the chip assembly, and sets the voltage reducer in the power supply circuit board. The voltage reducer can be electrically connected to the connector of the voltage regulator in the chip circuit board through the connector in the power supply circuit board, so as to realize the decoupling of the power supply circuit board from the chip circuit board and the design idea of ​​separating high and low voltages. Since the power supply circuit board realizes non-safe high-voltage input and completes the high-voltage and low-voltage conversion, the chip circuit board only transmits low voltage, and the power supply circuit board and the chip circuit board are two independent circuit structures, then when the maintenance personnel replace the chip and other electronic components in the chip circuit board, they only need to operate in the chip circuit board running at low voltage, and there is no risk of high-voltage electric shock, which can eliminate the safety hazards brought by traditional technologies.

[0007] In a possible implementation, the voltage dropper is a first voltage dropper whose input voltage is greater than a safety voltage, and the power input interface is a first power input interface that matches the first voltage dropper.

[0008] Among them, the first buck can be a high-ratio buck, which has a relatively large ratio of input voltage to output voltage and can directly convert the received high voltage (such as 380V) into the voltage required by the regulator of the chip component (such as 12V).

[0009] In the solution shown in the present application, since the power supply circuit board can realize high-voltage input, it can receive the voltage transmitted by the high-voltage power supply bus and convert the high voltage into the voltage required by the chip components. There is no need to convert the high voltage to 48V voltage, thereby reducing one level of voltage conversion, thereby reducing power supply loss and reducing the operating cost of computer equipment.

[0010] In a possible implementation, the voltage dropper is a second voltage dropper whose input voltage is not greater than a safety voltage, and the power input interface is a second power input interface that matches the second voltage dropper.

[0011] In the solution shown in the present application, the power supply circuit board can also achieve low voltage (such as 48V) input. For example, when the power of the computer equipment is not too large and the 48V power supply bus is used to power it, the voltage step-down device can select a second voltage step-down device.

[0012] In a possible implementation, the voltage dropper can be replaced between a first voltage dropper and a second voltage dropper, wherein the first voltage dropper is a voltage dropper having an input voltage greater than a safety voltage, and the second voltage dropper is a voltage dropper having an input voltage not greater than the safety voltage.

[0013] The power input interface includes a first power input interface matched with the first buck, for example, a voltage received by the first power input interface is substantially equal to an input voltage of the first buck.

[0014] The power input interface also includes a second power input interface matched with the second buck. For example, the voltage received by the second power input interface is substantially equal to the input voltage of the second buck.

[0015] In the scheme shown in the present application, when the power supply circuit board is used, if the power supply bus is a high-voltage power supply bus, then the first voltage dropper can be installed on the power supply circuit board, and if the power supply bus is a low-voltage power supply bus, then the second voltage dropper can be installed on the power supply circuit board. The first voltage dropper and the second voltage dropper can be installed on the same power supply circuit board. It can be seen that when the power supply circuit board is used, it is only necessary to choose whether the first voltage dropper is installed on the power supply circuit board or the second voltage dropper is installed on the power supply circuit board according to the type of the power supply bus, thereby improving the application flexibility of the power supply circuit board and broadening the application scenarios of the power supply circuit board.

[0016] In a possible implementation, a fifth connector is further provided in the power supply circuit board, and the fifth connector is electrically connected to the first power input interface, the second power input interface, and the first connector respectively.

[0017] The first step-down device is provided with a third connector, the second step-down device is provided with a fourth connector, and the third connector is the same as the fourth connector. For example, the number of pins included in the third connector is equal to the number of pins included in the fourth connector, and the arrangement of the pins included in the third connector is the same as the arrangement of the pins included in the fourth connector.

[0018] Then, if the voltage reducer is the first voltage reducer, the third connector is connected to the fifth connector; if the voltage reducer is the second voltage reducer, the fourth connector is connected to the fifth connector.

[0019] In the solution shown in the present application, when the power supply circuit board is used, if the power supply bus is a first power supply bus that transmits high voltage (such as 380V), the first bus output connector is inserted into the first power input interface, the voltage dropper selects the first voltage dropper, and the third connector of the first voltage dropper is connected to the fifth connector of the power supply circuit board. If the power supply bus is a second power supply bus that transmits low voltage (such as 48V), the second bus output connector is inserted into the second power input interface, the voltage dropper selects the second voltage dropper, and the fourth connector of the second voltage dropper is connected to the fifth connector of the power supply circuit board.

[0020] It can be seen that the power supply circuit board can be used in both high-voltage power supply scenarios and low-voltage power supply scenarios, and the switching is achieved by replacing the step-down device, which has a simple switching method and high switching efficiency. Moreover, the first step-down device and the second step-down device reuse the connector of the power supply circuit board (i.e., the fifth connector), which can reduce the space occupied by the connector on the power supply circuit board, which is conducive to reducing the size of the power supply circuit board.

[0021] In a possible implementation, a fifth connector and a sixth connector are further provided in the power supply circuit board, the fifth connector is electrically connected to the first power input interface and the first connector respectively, and the sixth connector is electrically connected to the second power input interface and the first connector respectively.

[0022] The first step-down device is provided with a third connector, and the second step-down device is provided with a fourth connector, and the third connector is different from the fourth connector. For example, the number of pins included in the third connector is equal to the number of pins included in the fourth connector, but the arrangement of the pins included in the third connector is different from the arrangement of the pins included in the fourth connector.

[0023] Then, if the voltage reducer is the first voltage reducer, the third connector is connected to the fifth connector, and if the voltage reducer is the second voltage reducer, the fourth connector is connected to the sixth connector.

[0024] In the solution shown in the present application, when the power supply circuit board is used, if the power supply bus is a first power supply bus that transmits high voltage (such as 380V), the first bus output connector is inserted into the first power input interface, the voltage dropper selects the first voltage dropper, and the third connector of the first voltage dropper is connected to the fifth connector. If the power supply bus is a second power supply bus that transmits low voltage (such as 48V), the second bus output connector is inserted into the second power input interface, the voltage dropper selects the second voltage dropper, and the fourth connector of the second voltage dropper is connected to the sixth connector.

[0025] It can be seen that the power supply circuit board can be used in both high-voltage power supply scenarios and low-voltage power supply scenarios, and the switching is achieved by replacing the step-down device. The switching method is simple and the switching efficiency is high.

[0026] In a possible implementation, the power supply circuit board includes a first power supply circuit board and a second power supply circuit board. The voltage dropper of the first power supply circuit board is a first voltage dropper, and the power input interface of the first power supply circuit board is a first power input interface matching the first voltage dropper. The voltage dropper of the second power supply circuit board is a second voltage dropper, and the power input interface of the second power supply circuit board is a second power input interface matching the second voltage dropper.

[0027] Then, if the bus output connector of the power supply bus can be connected to the first power input interface, the first connector of the first power supply circuit board is connected to the second connector of the voltage regulator of the chip assembly. If the bus output connector of the power supply bus can be connected to the second power input interface, the first connector of the second power supply circuit board is connected to the second connector of the voltage regulator of the chip assembly.

[0028] In the scheme shown in the present application, in application, if the power supply bus is a first power supply bus that transmits high voltage, the first bus output connector is inserted into the first power input interface, then the first power supply circuit board is selected to power the chip assembly, and the first connector of the first power supply circuit board is connected to the second connector of the chip assembly.

[0029] If the power supply bus is a second power supply bus that transmits low voltage, the second bus output connector is inserted into the second power input interface, then the second power supply circuit board is selected to power the chip assembly, and then the first connector of the second power supply circuit board is connected to the second connector of the chip assembly.

[0030] It can be seen that the power supply circuit board can be used in both high-voltage power supply scenarios and low-voltage power supply scenarios, and it is achieved by replacing different power supply circuit boards. The switching method between high and low voltage power supply is simple and the switching efficiency is high.

[0031] In a possible implementation, the number of the voltage reducer is one, and the voltage reducer and the first connector are arranged on the power supply circuit board according to the shortest transmission path.

[0032] In the scheme shown in the present application, the voltage on the transmission line between the voltage reducer and the first connector is relatively small. Then, under the condition that the transmission power remains unchanged, according to Ohm's law, the current on the transmission line is relatively large, and when a large current is transmitted on the transmission line, the line loss generated is relatively large. Therefore, the line loss can be reduced by shortening the transmission line. Therefore, the voltage reducer and the first connector are arranged on the power supply circuit board according to the shortest transmission path, which can reduce the line loss.

[0033] In a possible implementation, there are multiple step-down devices, and there are multiple first connectors. Furthermore, the multiple first connectors form multiple first connector groups, and each first connector group includes multiple first connectors.

[0034] In this way, each step-down transformer is electrically connected to each first connector in a first connector group, and the step-down transformer and the first connector in an electrically connected relationship are arranged on the power supply circuit board according to the shortest transmission path.

[0035] In the solution shown in the present application, the voltage reducer and the first connector, which are in an electrically connected relationship, are arranged on the power supply circuit board according to the shortest transmission path, which can reduce line losses.

[0036] In a possible implementation, the chip assembly includes a chip circuit board, a chip, and the voltage regulator. The chip is located on one side of the chip circuit board, and the voltage regulator is located on the other side of the chip circuit board. For example, the side of the chip circuit board where the chip is located can be recorded as the upper surface, and the other side where the voltage regulator is located can be recorded as the lower surface. The upper surface and the lower surface of the chip circuit board are relative to each other.

[0037] Moreover, the position of the chip and the position of the voltage regulator are arranged relative to each other, for example, the voltage regulator is located directly below the chip, so that the electrical connection path between the chip and the voltage regulator is the shortest.

[0038] In the solution shown in the present application, the chip and the voltage regulator are located on two opposite surfaces of the chip circuit board, and the voltage regulator is located directly below the chip, so that the electrical connection path between the chip and the voltage regulator is the shortest. The shortest electrical connection path can reduce the voltage loss on the path during transmission.

[0039] On the other hand, a computer device is provided, the computer device comprising a chip assembly and the power supply circuit board described above. The chip assembly comprises a chip circuit board, a chip and a voltage regulator, the chip and the voltage regulator are both located on the chip circuit board, and the chip and the voltage regulator are electrically connected. A second connector is provided in the voltage regulator, and the first connector of the power supply circuit board is connected to the second connector of the voltage regulator.

[0040] In the scheme shown in the present application, the computer device independently designs a power supply circuit board, and sets a voltage reducer in the power supply circuit board. The voltage reducer can be electrically connected to the connector of the voltage regulator in the chip circuit board through the connector in the power supply circuit board, so as to realize the design idea of ​​decoupling the power supply circuit board from the chip circuit board and separating high and low voltages. Since the power supply circuit board realizes non-safe high-voltage input and completes high-voltage and low-voltage conversion, the chip circuit board only transmits low voltage, and the power supply circuit board and the chip circuit board are two independent circuit structures, then when the maintenance personnel replace the chip and other electronic components in the chip circuit board, they only need to operate in the chip circuit board running at low voltage, and there is no risk of high-voltage electric shock, which can eliminate the safety hazards brought by traditional technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of a chip component provided by conventional technology;

[0042] Figure 2 It is a structural schematic diagram of a power supply circuit board provided by the present application;

[0043] Figure 3 It is a schematic diagram of the connection between a power supply circuit board and a chip assembly provided by the present application;

[0044] Figure 4 It is a structural schematic diagram of a power supply circuit board provided by the present application;

[0045] Figure 5 It is a structural schematic diagram of a power supply circuit board provided by the present application;

[0046] Figure 6 It is a structural schematic diagram of a power supply circuit board provided by the present application;

[0047] Figure 7 It is a schematic diagram of the connection between a voltage reducer and a power supply circuit board provided by the present application;

[0048] Figure 8 It is a structural schematic diagram of a power supply circuit board provided by the present application;

[0049] Fig. 9 It is a schematic diagram of the connection between a voltage reducer and a power supply circuit board provided by the present application;

[0050] Fig.10 It is a schematic diagram of the connection between a power supply circuit board and a chip assembly provided by the present application;

[0051] Fig.11 It is a structural schematic diagram of a power supply circuit board provided in this application.

[0052] Reference numerals:

[0053] 1-power supply circuit board; 11-first connector; 12-voltage reducer;

[0054] 13-power input interface; 14-fifth connector; 15-sixth connector;

[0055] 101-first power supply circuit board; 102-second power supply circuit board; 110-first connector group;

[0056] 121-first step-down device; 122-second step-down device; 131-first power input interface;

[0057] 132-second power input interface; 1211-third connector; 1221-fourth connector;

[0058] 2-chip assembly; 21-chip circuit board; 22-chip;

[0059] 23-voltage regulator; 231-second connector; 3-power supply bus;

[0060] 30-busbar output connector; 31-first power supply busbar; 32-second power supply busbar;

[0061] 311 - first busbar output connector; 321 - second power supply busbar output connector. DETAILED DESCRIPTION

[0062] like Figure 1 As shown, it is a schematic diagram of a chip component of a computer device provided by conventional technology, such as Figure 1 As shown, the chip assembly 2 includes a chip circuit board 21, a chip 22, a voltage reducer 12 and a voltage regulator 23, and the chip 22, the voltage reducer 12 and the voltage regulator 23 are all arranged on the chip circuit board 21. Among them, the voltage reducer 12 is used to receive the voltage transmitted by the power supply bus and perform voltage reduction processing on the received voltage, and the voltage regulator 23 is used to reduce the voltage and output a stable voltage. In this way, the voltage reducer 12 receives the voltage transmitted by the power supply bus, and reduces the voltage to the input voltage required by the voltage regulator 23, and then transmits it to the voltage regulator 23. The voltage regulator 23 stabilizes the input voltage at the voltage required by the chip 22, and then transmits it to the chip 22.

[0063] As the computing power demand of computer equipment continues to increase, there are more and more devices in computer equipment, and their power demand is also getting higher and higher. In order to reduce the current of the power supply line, high-voltage DC power supply is usually used, such as 380v high-voltage DC power supply. However, 380v is an unsafe voltage. If a 380v power supply interface is directly used in computing equipment, there is a risk of electric shock when maintenance personnel replace or maintain components installed on the printed circuit board of computing equipment such as chips, which poses a safety hazard.

[0064] Therefore, the power interface of the chip assembly 2 is 48V, which is within the safe voltage range of DC power. When maintenance personnel operate chips and other devices, there will be no risk of electric shock.

[0065] The power interface of chip assembly 2 is 48V. When the high-voltage power supply bus supplies power to chip assembly 2, it needs to first perform a voltage conversion from a high voltage (such as 380V) to 48V. However, there is a conversion loss in voltage conversion. Then, the voltage conversion loss plus the line loss will cause a single chip assembly 2 to generate about 2% power loss. It can be seen that current computer equipment has a relatively large power loss, resulting in a relatively high operating cost of computer equipment.

[0066] It can be seen from this that if the computer equipment provided by traditional technology uses a high-voltage power supply interface (such as a 380v power supply interface) to directly receive the high voltage transmitted by the high-voltage power supply bus, the maintenance personnel will be at risk of electric shock, which poses a major safety hazard. If a low-voltage power supply interface (such as a 48v power supply interface) is used to indirectly receive the high voltage transmitted by the high-voltage power supply bus, there will be a voltage conversion from high voltage to low voltage, and there will be conversion losses in the voltage conversion, resulting in large power supply losses and high operating costs for the computer equipment.

[0067] In order to solve the above problems, the present application provides a computer device, which independently designs a power supply circuit board, and sets a voltage regulator 12 in the power supply circuit board 1. The voltage regulator 12 can be electrically connected to the connector of the voltage regulator in the chip circuit board 21 through the connector in the power supply circuit board 1, so as to realize the decoupling of the power supply circuit board 1 and the chip circuit board 21 and the high and low voltage separation design concept. Since the power supply circuit board 1 realizes non-safe high-voltage input and completes the high-voltage and low-voltage conversion, the chip circuit board only transmits low voltage, and the power supply circuit board 1 and the chip circuit board 21 are two independent circuit structures, when the maintenance personnel replace the chip and other electronic components in the chip circuit board, they only need to operate in the chip circuit board running at low voltage, and there is no risk of high-voltage electric shock, which eliminates the risk of high-voltage electric shock. Figure 1 The safety risks brought by the traditional technology shown.

[0068] And because the power supply circuit board can realize non-safe high-voltage input, it can receive the voltage transmitted by the high-voltage power supply bus and convert the high voltage into the voltage required by the chip components. There is no need to convert the high voltage to 48V voltage, thus reducing one level of voltage conversion, thereby reducing power supply loss and reducing the operating cost of computer equipment.

[0069] like Figure 3 As shown, it includes a power supply circuit board 1 and a chip assembly 2. The power supply circuit board 1 is independent of the chip assembly 2, so that the power supply circuit board 1 and the chip assembly 2 are decoupled. Then, when the maintenance personnel operate the components in the chip assembly 2, they only need to perform the operation in the chip circuit board, and only low voltage (such as 12V) runs in the chip circuit board. There is no need to touch the power supply circuit board 1 that realizes high-low voltage conversion, and electric shock will not occur.

[0070] In addition, the power supply circuit board 1 can be a high-voltage power supply circuit board, and the high-voltage power supply bus directly provides high voltage to the power supply circuit board 1 without undergoing voltage conversion from high voltage to 48V, thereby reducing one level of voltage conversion, thereby reducing power supply loss and reducing the operating cost of computer equipment.

[0071] The power supply circuit board 1 provided in the present application is described in detail below with reference to the accompanying drawings.

[0072] like Figure 2 As shown, the power supply circuit board 1 includes a voltage reducer 12 and a power input interface 13, and the voltage reducer 12 and the power input interface 13 are both located on the power supply circuit board 1, for example, Figure 2 As shown, the voltage reducer 12 and the power input interface 13 may be located on the same side of the power supply circuit board 1 . For another example, the voltage reducer 12 and the power input interface 13 may also be located on different sides of the power supply circuit board 1 .

[0073] The voltage reducer 12 and the power input interface 13 are located on the same side of the power supply circuit board 1 , that is, the voltage reducer 12 and the power input interface 13 are located on the same surface (such as the upper surface or the lower surface) of the power supply circuit board 1 .

[0074] The voltage reducer 12 and the power input interface 13 are located on different sides of the power supply circuit board 1, that is, one of the voltage reducer 12 and the power input interface 13 is located on one side of the power supply circuit board 1, and the other is located on the other side of the power supply circuit board 1. For the convenience of description, one side of the voltage reducer 12 is called the upper surface, and the other side is called the lower surface. The upper surface and the lower surface may be two opposite surfaces of the power supply circuit board 1.

[0075] The present application does not specifically limit whether the voltage reducer 12 and the power input interface 13 are located on the same surface of the power supply circuit board 1 , and the drawings illustrate that the two are located on the same surface.

[0076] As an example, Figure 2 As shown, the power input interface 13 is used to connect with the bus output connector 30 of the power supply bus 3 to receive the voltage transmitted by the power supply bus. The step-down device 12 is used to receive the voltage transmitted by the power supply bus and perform a voltage reduction process on the received voltage. Figure 2 As shown, the voltage reducer 12 is electrically connected to the power input interface 13 .

[0077] The electrical connection between the voltage reducer 12 and the power input interface 13 is achieved through the circuit inside the power supply circuit board 1 .

[0078] As an example, the power supply circuit board 1 is used to supply power to the chip of the computer device, so, for example Figure 2 As shown, the power supply circuit board 1 has a first connector 11, and the first connector 11 is used to transmit voltage to the chip component. Figure 2 The first connector 11 a , the first connector 11 b , the first connector 11 c , and the first connector 11 d all represent the first connector 11 .

[0079] Since the first connector 11 needs to receive the voltage after the voltage reduction process of the voltage reducer 12, Figure 2 As shown, the first connector 11 is electrically connected to the step-down transformer 12 .

[0080] Since in the chip assembly 2, the voltage regulator 23 is used to receive the voltage transmitted from the outside, so, for example Figure 3 As described above, the voltage regulator 23 has a second connector 231 , and the second connector 231 is connected to the first connector 11 .

[0081] The voltage regulator 23 may also be referred to as a voltage regulator module (VRM).

[0082] Since the power of the voltage regulator 23 is less than the power of the chip 22, multiple voltage regulators 23 are required to meet the power requirements of the chip 22. For example, if the power of the chip 22 is around 800W-1000W, and the power of a single voltage regulator 23 is around 20W, then 4 to 5 voltage regulators 23 are required to power this chip 22. Figure 3 In the example, two voltage regulators 23 are used. Figure 3 The middle regulator 23 a and the regulator 23 b both represent the regulator 23 .

[0083] Since there are multiple voltage regulators 23, there are also multiple first connectors 11 connected to the second connectors 231 of the voltage regulators 23. For example, the number of the first connectors 11 is equal to the number of the voltage regulators 23. Figure 3 In the example, two first connectors 11 are used as an example. Figure 2In the figure, four first connectors 11 are used as an example.

[0084] like Figure 2 As shown, the plurality of first connectors 11 are all electrically connected to the voltage reducer 12 , wherein the electrical connection is achieved through the circuit inside the power supply circuit board 1 .

[0085] like Figure 3 As shown, each first connector 11 is connected to the second connector 231 of a voltage regulator 23 , and thus, the position of each first connector 11 is arranged to correspond to the position of the second connector 231 of a voltage regulator 23 .

[0086] For example, Figure 3 As shown, the first connector 11a and the second connector 231a of the voltage regulator 23a are opposite to each other, and the first connector 11a and the second connector 231a are connected, and the first connector 11b and the second connector 231b are opposite to each other, and the first connector 11b and the second connector 231b are connected. Figure 3 The arrows in the figure indicate the docking relationship and the corresponding relationship.

[0087] Since the input voltage of the voltage regulator 23 is relatively low, such as 12V or 9V or 6V, etc., and the working voltage of the chip 22 is even lower, such as less than 1V, only a low-voltage safety voltage is carried on the chip circuit board 21 .

[0088] refer to Figure 3 As shown, the power supply circuit board 1 and the chip assembly 2 that supply power to the chip 22 are independent of each other and can be physically separated. Therefore, when the maintenance personnel insert and remove the chip assembly on the motherboard of the computer device, they can first separate the chip assembly 2 from the power supply circuit board 1, and then insert and remove the chip assembly 2 on the motherboard. In this way, the power supply circuit board 1 will not be touched when inserting and removing the chip assembly. When the maintenance personnel maintain the electronic components in the chip circuit board, they only operate in the chip circuit board running at low voltage.

[0089] Since the maintenance personnel will not touch the power supply circuit board 1 when plugging and unplugging the chip assembly 2, or maintaining the electronic components in the chip circuit board, the power supply circuit board 1 can be a high-voltage power supply circuit board that can receive the high-voltage power supply bus. If the power supply circuit board 1 is a high-voltage power supply circuit board, the high-voltage power supply bus can directly transmit high voltage to it without first converting the high voltage to a safe voltage value (such as 48V), thereby reducing one level of voltage conversion, thereby reducing power supply losses and reducing the operating costs of computer equipment.

[0090] Among them, the high voltage described in the present application can be a voltage higher than 48v, such as 120v, 240v, 380v, or 800v, ​​etc.

[0091] Furthermore, in the case where the power supply circuit board 1 is a high voltage power supply circuit board, Figure 4 As shown, the power input interface 13 of the power supply circuit board 1 is a first power input interface 131, which can receive a high voltage greater than the safety voltage. The buck 12 is a first buck 121 whose input voltage is greater than the safety voltage and whose output voltage is the voltage required by the regulator 23.

[0092] The safe voltage may be a voltage within the range of 40 V to 60 V, for example, a voltage of 48 V. For ease of description, the present application takes 48 V as an example for explanation.

[0093] The first power input interface 131 matches the first voltage reducer 121 . For example, the voltage received by the first power input interface 131 is substantially equal to the input voltage of the first voltage reducer 121 .

[0094] Among them, the first buck 121 can convert a relatively high voltage into a relatively low voltage, and the ratio of its input voltage to output voltage is relatively large. The first buck 121 can be a high ratio buck, which can also be called a high ratio voltage down module (high Ratio voltage down module, HVDM).

[0095] For example, the first voltage reducer 121 can reduce a high voltage of 120V to a low voltage of 6V, 9V, or 12V. For another example, the first voltage reducer 121 can reduce a high voltage of 240V to a low voltage of 6V, 9V, or 12V. For another example, the first voltage reducer 121 can reduce a high voltage of 380V to a low voltage of 6V, 9V, or 12V. For another example, the first voltage reducer 121 can reduce a high voltage of 800V to a low voltage of 6V, 9V, or 12V.

[0096] In a possible implementation, the power supply circuit board 1 may be a low voltage power supply circuit board in addition to a high voltage power supply circuit board. Figure 5 As shown, the power input interface 13 of the power supply circuit board 1 is a second power input interface 132, which can receive a voltage not greater than the safety voltage. The buck 12 is a second buck 122 whose input voltage is not greater than the safety voltage and whose output voltage is the voltage required by the regulator 23.

[0097] The second power input interface 132 matches the second voltage reducer 122 . For example, the voltage received by the second power input interface 132 is substantially equal to the input voltage of the second voltage reducer 122 .

[0098] The second voltage reducer 122 may also be referred to as a voltage down module (VDM).

[0099] For example, the first voltage reducer 121 can reduce the voltage of 48V to a low voltage of 6V, 9V, or 12V.

[0100] In a possible implementation, the power supply circuit board 1 can be used as both a high voltage power supply circuit board and a low voltage power supply circuit board. Figure 7 As shown, the voltage dropper 12 can be replaced between a first voltage dropper 121 and a second voltage dropper 122 , and the first voltage dropper 121 and the second voltage dropper 122 can be arranged in the same power supply circuit board 1 .

[0101] So, if Figure 6 As shown, the power input interface 13 includes a first power input interface 131 and a second power input interface 132 , wherein the first power input interface 131 matches the first voltage reducer 121 , and the second power input interface 132 matches the second voltage reducer 122 .

[0102] In this way, Figure 6 As shown, when the first bus output connector 311 of the external high-voltage power supply bus (referred to as the first power supply bus 31) is inserted into the first power input interface 131, the power supply circuit board 1 is a high-voltage power supply circuit board. Figure 6 As shown, when the second bus output connector 321 of the external low-voltage power supply bus (referred to as the second power supply bus 32) is inserted into the second power input interface 132, the power supply circuit board 1 is a low-voltage power supply circuit board.

[0103] In this way, when the power supply circuit board 1 is used, it only needs to choose whether to install the first buck 121 on the power supply circuit board 1 or the second buck 122 on the power supply circuit board 1 according to the type of the power supply bus, thereby improving the application flexibility of the power supply circuit board and broadening the application scenarios of the power supply circuit board 1.

[0104] In a possible implementation, the first voltage dropper 121 and the second voltage dropper 122 can be arranged in the same power supply circuit board 1 . One implementation may be that the first voltage dropper 121 and the second voltage dropper 122 share a connector on the power supply circuit board 1 .

[0105] As an example, Figure 6 As shown, the power supply circuit board 1 has a fifth connector 14 , and the fifth connector 14 is electrically connected to the first power input interface 131 , the second power input interface 132 and the plurality of first connectors 11 respectively.

[0106] like Figure 7As shown, the first step-down transformer 121 has a third connector 1211 , and the second step-down transformer 122 has a fourth connector 1221 , and the third connector 1211 and the fourth connector 1221 are the same.

[0107] Among them, the third connector 1211 and the fourth connector 1221 are the same, that is, the number of pins included in the third connector 1211 is equal to the number of pins included in the fourth connector 1221, and the arrangement of the pins included in the third connector 1211 is the same as the arrangement of the pins included in the fourth connector 1221.

[0108] As an example, in processing the first buck 121 and the second buck 122, in order to make the third connector 1211 of the first buck 121 the same as the fourth connector 1221 of the second buck 122, the first buck 121 and the second buck 122 can be packaged in the same packaging manner and packaged into the same shape and the same volume.

[0109] Thus, the power supply circuit board 1 is used in applications such as Figure 6 As shown, if the power supply bus is the first power supply bus 31, the first bus output connector 311 is plugged into the first power input interface 131, and the voltage reducer 12 selects the first voltage reducer 121, then, Figure 7 As shown, the third connector 1211 of the first voltage reducer 121 is connected to the fifth connector 14. Figure 6 As shown, if the power supply bus is the second power supply bus 32, the second bus output connector 321 is plugged into the second power input interface 132, and the voltage reducer 12 selects the second voltage reducer 122, then, Figure 7 As shown, the fourth connector 1221 of the second voltage reducer 122 is connected to the fifth connector 14 .

[0110] In one possible implementation, the first buck 121 and the second buck 122 can be arranged in the same power supply circuit board 1. Another implementation may be that the power supply circuit board 1 has a connector for connecting the first buck 121 and a connector for connecting the second buck 122.

[0111] As an example, Figure 8 As shown, the power supply circuit board 1 has a fifth connector 14 and a sixth connector 15. The fifth connector 14 is electrically connected to the first power input interface 131 and the plurality of first connectors 11 respectively, and the sixth connector 15 is electrically connected to the second power input interface 132 and the plurality of first connectors 11 respectively.

[0112] like Fig. 9As shown, the first step-down transformer 121 has a third connector 1211 , and the second step-down transformer 122 has a fourth connector 1221 , and the third connector 1211 and the fourth connector 1221 are different.

[0113] Among them, the third connector 1211 and the fourth connector 1221 are not the same. For example, the number of pins included in the third connector 1211 is equal to the number of pins included in the fourth connector 1221, but the arrangement of the pins included in the third connector 1211 is different from the arrangement of the pins included in the fourth connector 1221.

[0114] As an example, in processing the first buck 121 and the second buck 122 , the shape of the first buck 121 and the shape of the second buck 122 may be the same, but the volume of the first buck 121 after packaging is greater than the volume of the second buck 122 after packaging.

[0115] Thus, the power supply circuit board 1 is used in applications such as Figure 8 As shown, if the power supply bus is the first power supply bus 31, the first bus output connector 311 is plugged into the first power input interface 131, and the voltage reducer 12 selects the first voltage reducer 121, then, Fig. 9 As shown, the third connector 1211 of the first voltage reducer 121 is connected to the fifth connector 14. Figure 8 As shown, if the power supply bus is the second power supply bus 32, the second bus output connector 321 is plugged into the second power input interface 132, and the voltage reducer 12 selects the second voltage reducer 122, then, Fig. 9 As shown, the fourth connector 1221 of the second voltage reducer 122 is connected to the sixth connector 15 .

[0116] In the above, different power supply busbars are matched by replacing the voltage reducer 12 . In another possible implementation, different power supply busbars may also be matched by replacing the power supply circuit board 1 .

[0117] like Fig.10 As shown, the power supply circuit board 1 includes a first power supply circuit board 101 and a second power supply circuit board 102. The voltage dropper 12 of the first power supply circuit board 101 is a first voltage dropper 121. The power input interface 13 of the first power supply circuit board 101 is a first power input interface 131 matching the first voltage dropper 121. Fig.10 As shown, the voltage dropper 12 of the second power supply circuit board 102 is a second voltage dropper 122 , and the power input interface 13 of the second power supply circuit board 102 is a second power input interface 132 matching the second voltage dropper 122 .

[0118] like Fig.10As shown, if the power supply bus is the first power supply bus 31, the first bus output connector 311 is plugged into the first power input interface 131, and the first power supply circuit board 101 is selected to power the chip 22, then, Fig.10 As shown, the first connector 11 of the first power supply circuit board 101 is connected to the second connector 231 of the chip assembly 2 (see Fig.10 (as indicated by the solid arrow in ).

[0119] Continue to refer Fig.10 As shown, if the power supply bus is the second power supply bus 32, and the second bus output connector 321 is plugged into the second power input interface 132, the second power supply circuit board 102 is selected to power the chip 22. Then, as shown in FIG. Fig.10 As shown, the first connector 11 of the second power supply circuit board 102 is connected to the second connector 231 of the chip assembly 2 (see Fig.10 ).

[0120] like Fig.10 As shown, the first connector 11 of the power supply circuit board 1 is connected to the second connector 231 of the chip assembly 2. There are many ways to connect the first connector 11 and the second connector 231. Several connection methods will be introduced below.

[0121] In a possible implementation, the first connector 11 and the second connector 231 are connected by blind plugging. Then, one of the first connector 111 and the second connector 231 is an electrical interface, and the other is an electrical connector, wherein the electrical interface and the electrical connector both include a plurality of pins, and the number of pins is equal, and when the electrical connector is inserted into the electrical interface, the plurality of pins of the electrical connector and the plurality of pins of the electrical interface are connected one-to-one. For example, the first connector 11 can be an electrical interface, and the second connector 231 can be an electrical connector. Optionally, the electrical interface and the electrical connector can be calibrated by a limiting structure to achieve a quick connection between the two.

[0122] In a possible implementation, the first connector 11 and the second connector 231 are connected by crimping. Then, one of the first connector 11 and the second connector 231 is a contact piece and the other is a spring piece, wherein the number of the contacts and the number of the spring pieces are both multiple and equal, and each spring piece abuts against a contact piece to achieve a stable connection during docking. For example, the first connector 11 is a contact piece and the second connector 231 is a spring piece.

[0123] Optionally, when the first connector 11 and the second connector 231 are docked by crimping, in addition to the above-mentioned contact and spring sheet method, the first connector 11 and the second connector 231 can also be docked by crimping by means of contacts and spring pins. For example, the first connector 11 uses contacts and the second connector 231 uses spring pins. Optionally, the first connector 11 can also use spring pins and the second connector 231 can use contacts.

[0124] It is worth noting that the number of contacts and the number of spring pins are both multiple and equal, and when docking, each spring pin is pressed against a contact to achieve a stable connection.

[0125] like Figure 7 and Figure 8 As shown, in the solution where the voltage reducer 12 is replaceable, in order to facilitate the replacement of the voltage reducer 12 between the first voltage reducer 121 and the second voltage reducer 122, the voltage reducer 12 is also installed on the power supply circuit board 1 through a connector.

[0126] For example, Figure 7 As shown, the third connector 1211 of the first step-down transformer 121 and the fourth connector 1221 of the second step-down transformer 122 are the same, and both are connected to the fifth connector 14 on the power supply circuit board 1. The connection method can be achieved by blind plugging and crimping as described above, and will not be described here one by one.

[0127] For example, Fig. 9 As shown, the third connector 1211 of the first step-down device 121 is connected to the fifth connector 14 on the power supply circuit board 1, and the fourth connector 1221 of the second step-down device 122 is connected to the sixth connector 15 on the power supply circuit board 1. The connection method can be achieved by blind plugging and crimping as described above, and will not be described in detail here.

[0128] like Fig.10 As shown, in the solution where the power supply circuit board 1 is replaceable, the connection between the step-down device 12 and the power supply circuit board 1 can be a detachable docking or a fixed connection (such as welding).

[0129] For example, the first voltage reducer 121 and the power supply circuit board 1 may be welded or butted, wherein the butt connection may be specifically implemented by the blind plugging or crimping described above.

[0130] For another example, the second voltage reducer 122 and the power supply circuit board 1 may be welded or butted, wherein the butt connection may be specifically implemented by the blind plugging or crimping described above.

[0131] The above is an introduction to the replaceable solution of the voltage reducer 12 and the replaceable solution of the power supply circuit board 1. The number of voltage reducers 12 included in the power supply circuit board 1 will be introduced below.

[0132] As described above, the voltage reducer 12 can be the first voltage reducer 121, can be the second voltage reducer 122, or can include the first voltage reducer 121 and the second voltage reducer 122. Then, if the voltage reducer 12 is the first voltage reducer 121, the number of the voltage reducers 12 is also the number of the first voltage reducers 121; if the voltage reducer 12 is the second voltage reducer 122, the number of the voltage reducers 12 is also the number of the second voltage reducers 122; if the voltage reducer 12 includes the first voltage reducer 121 and the second voltage reducer 122, the number of the voltage reducers 12 is also the number of the first voltage reducers 121 and the number of the second voltage reducers 122, and the number of the first voltage reducers 121 and the number of the second voltage reducers 122 are equal.

[0133] In one possible implementation, Figure 2 As shown, there is one buck 12 , and one buck 12 supplies power to the chip 22 of the chip assembly 2 .

[0134] For example, in a solution where a power supply circuit board 1 supplies power to a chip 22 of a chip assembly 2, the power supply circuit board 1 may include a step-down transformer 12. If the computer device includes multiple chip assemblies 2, then the number of power supply circuit boards 1 is also multiple, to supply power to the multiple chip assemblies 2 respectively.

[0135] In one possible implementation, Fig.11 As shown, the number of the voltage reducers 12 is multiple, Fig.11 The voltage droppers 12 a , 12 b , 12 c , and 12 d all represent voltage droppers 12 , and four voltage droppers 12 are used as an example.

[0136] For example, in a solution where a power supply circuit board 1 supplies power to chips 22 of multiple chip assemblies 2, the power supply circuit board 1 may include multiple voltage reducers 12, such as Fig.11 As described above, the plurality of first connectors 11 form a plurality of first connector groups 110 , each first connector group 110 includes a plurality of first connectors 11 , and each step-down transformer 12 is electrically connected to each first connector 11 in one first connector group 110 .

[0137] in, Fig.11 In the figure, the first connector set 110a, the first connector set 110b, the first connector set 110c and the first connector set 110d all represent the first connector set 110, Fig.11 In the figure, four first connector groups 110 are used as an example, and each first connector group 110 includes four first connectors 11 .

[0138] As an example, Fig.11 As shown, the step-down device 12a is electrically connected to each first connector 11 in the first connector group 110a, and the multiple first connectors 11 in the first connector group 110a are respectively connected one by one with multiple second connectors 231 of a chip component (referred to as the first chip component).

[0139] The step-down device 12b is electrically connected to each first connector 11 in the first connector group 110b, and the plurality of first connectors 11 in the first connector group 110b are connected one by one to the plurality of second connectors 231 of a chip assembly (referred to as a second chip assembly).

[0140] The step-down device 12c is electrically connected to each first connector 11 in the first connector group 110c, and the plurality of first connectors 11 in the first connector group 110c are connected one by one to the plurality of second connectors 231 of a chip assembly (referred to as the third chip assembly).

[0141] The step-down device 12d is electrically connected to each first connector 11 in the first connector group 110d, and the plurality of first connectors 11 in the first connector group 110d are connected one by one to the plurality of second connectors 231 of a chip assembly (referred to as the fourth chip assembly).

[0142] The first chip assembly, the second chip assembly, the third chip assembly and the fourth chip assembly are different from each other.

[0143] As an example, no matter there is one or more step-down devices 12 , the positions of the step-down devices 12 and the first connector 11 that are electrically connected on the power supply circuit board 1 are as close as possible, for example, they can be arranged according to the shortest transmission path.

[0144] For example, if the number of the voltage reducer 12 is one, then the voltage reducer 12 and each first connector 11 are arranged on the power supply circuit board 1 according to the shortest transmission path.

[0145] For another example, there are multiple step-down devices 12, and the positions of the step-down devices 12 and the first connectors 11 that are electrically connected on the power supply circuit board 1 are arranged according to the shortest transmission path. For example, the step-down device 12a and each first connector 11 in the first connector group 110a are arranged on the power supply circuit board 1 according to the shortest transmission path.

[0146] The reason why the voltage reducer 12 and the first connector 11, which are in an electrically connected relationship, are arranged on the power supply circuit board 1 according to the shortest transmission path is that the voltage on the transmission line between the voltage reducer 12 and the first connector 11 is relatively small, so when the transmission power remains unchanged, according to Ohm's law, the current on the transmission line is relatively large, and when a large current is transmitted on the transmission line, the line loss generated is relatively large, so the line loss can be reduced by shortening the transmission line. Therefore, the voltage reducer 12 and the first connector 11, which are in an electrically connected relationship, are arranged on the power supply circuit board 1 according to the shortest transmission path.

[0147] As an example, since the voltage on the transmission line between the power input structure 13 and the voltage reducer 12 is relatively large, the current on the transmission line is not that large, and the line loss generated is not large. Therefore, when arranging the power input interface 13, the voltage reducer 12 and the first connector 11 on the power supply circuit board 1, first consider the transmission route between the voltage reducer 12 and the first connector 11 that are electrically connected, and shorten the transmission route between the voltage reducer 12 and the first connector 11 that are electrically connected as much as possible. Secondly, consider the transmission route between the voltage reducer 12 and the power input interface 13, and shorten the transmission route between the voltage reducer 12 and the power input interface 13 as much as possible to further reduce the line loss.

[0148] In order to further reduce the line transmission loss of computer equipment, accordingly, Figure 3 As shown, the chip 22 is located on one side of the chip circuit board 21, and multiple regulators 23 are located on the other side of the chip circuit board 21. The position of the chip 22 is opposite to the position of the multiple regulators 23. The chip 22 and the regulators 23 are electrically connected through the vertical lines in the chip circuit board 21.

[0149] As an example, the chip 22 is located on one side of the chip circuit board 21, for example, Figure 3 As shown, the side where the chip 22 is located on the chip circuit board 21 can be recorded as the upper surface of the chip circuit board 21. A plurality of voltage regulators 23 are located on the other side of the chip circuit board 21, for example, Figure 3 As shown, the other side where the multiple voltage regulators 23 are located on the chip circuit board 21 can be recorded as the lower surface, and the upper surface and the lower surface can be two opposite surfaces of the chip circuit board 21.

[0150] As an example, the position of the chip 22 is opposite to the position of the plurality of regulators 23, and further reference is made to Figure 3 As shown, a plurality of voltage regulators 23 may be located directly below the chip 22 .

[0151] In this way, since the chip 22 and the multiple voltage regulators 23 are located on different sides of the chip circuit board 21, and the positions of the chip 22 and the multiple voltage regulators 23 are relative, the chip 22 and the voltage regulators 23 can be electrically connected through the vertical lines in the chip circuit board 21, and thus the chip 22 and the voltage regulators 23 are vertically connected.

[0152] like Figure 3 As shown, the vertical connection between the chip 22 and the regulator 23 is similar to Figure 1 Compared with the horizontal connection between the chip 22 and the regulator 23 shown, the transmission path between the chip 22 and the regulator 23 can be shortened. Once the transmission path is shortened, the line transmission loss will be reduced.

[0153] In a possible implementation, the power supply circuit board 1 may have areas without components installed, which can be used to install some functional components so that the power supply circuit board 1 integrates other functions. For example, network components can be set on the power supply circuit board 1 so that the power supply circuit board 1 integrates the function of a network card.

[0154] In one possible implementation, the power supply circuit board 1 may be a newly added circuit board in the computer device, and the power supply circuit board 1 is different from the main board of the computer device. In another possible implementation, the power supply circuit board 1 may also be the main board of the computer device.

[0155] In the solution shown in the present application, the power supply circuit board 1 and the chip assembly 2 that supply power to the chip 22 are independent of each other and can be physically separated. Therefore, when the maintenance personnel insert or remove the chip assembly 2 on the motherboard of the computer device, they can first separate the chip assembly 2 from the power supply circuit board 1, and then insert or remove the chip assembly 2 on the motherboard. In this way, the power supply circuit board 1 will not be touched during the insertion or removal of the chip assembly, which can eliminate the safety hazards brought by the traditional technology.

[0156] Since the maintenance personnel will not touch the power supply circuit board 1 when plugging and unplugging the chip assembly 2 on the motherboard, the power supply circuit board 1 can be a high-voltage power supply circuit board that can receive the high-voltage power supply bus. If the power supply circuit board 1 is a high-voltage power supply circuit board, the high-voltage power supply bus can directly transmit high voltage to it without first converting the high voltage to a safe voltage value (such as 48V), thereby reducing one level of voltage conversion, thereby reducing power supply losses and reducing the operating costs of computer equipment.

[0157] Although the power supply circuit board is used to achieve unsafe high-voltage input, the power supply circuit board and the chip circuit board are two independent circuit structures, and the chip circuit board only transmits low voltage. Therefore, when maintenance personnel replace chips and other electronic components in the chip assembly, they only operate on the chip circuit board running at low voltage. Therefore, there is no risk of high-voltage electric shock, and the safety hazards brought by traditional technologies can be eliminated.

[0158] The present application also provides a computer device, which can be a server, a switch, a router or other device. The server can specifically be a cabinet server or a node server in a supercomputing cluster.

[0159] The computer device may include a chip assembly 2 and the power supply circuit board 1 described above. The chip assembly 2 may refer to Figure 3 and Fig.10 As shown, the power supply circuit board 1 can be seen Figures 2 to 11 shown.

[0160] The above is only a specific embodiment of the present invention. Those skilled in the art may conceive of changes or substitutions based on the specific embodiments provided by the present invention, which should be included in the protection scope of the present invention.

Claims

1. A power supply circuit board (1), characterized in that: The power supply circuit board (1) is provided with a voltage reducer (12) and a power input interface (13), and the voltage reducer (12) is electrically connected to the power input interface (13); the power input interface (13) is used to receive an input voltage, and the voltage reducer (12) is used to convert the input voltage into a voltage required by the chip component; The power supply circuit board (1) is also provided with a first connector (11), the first connector (11) being electrically connected to the voltage reducer (12); the first connector (11) is docked with a second connector (231) of a voltage regulator (23) of the chip assembly (2), wherein the position of the first connector (11) is arranged relative to the position of the second connector (231), and the chip assembly (2) obtains the voltage required by the chip assembly through the first connector (11).

2. The power supply circuit board (1) according to claim 1, characterized in that: The voltage reducer (12) is a first voltage reducer (121) whose input voltage is greater than a safety voltage, and the power input interface (13) is a first power input interface (131) that matches the first voltage reducer (121).

3. The power supply circuit board (1) according to claim 1, characterized in that: The voltage reducer (12) is a second voltage reducer (122) whose input voltage is not greater than a safety voltage, and the power input interface (13) is a second power input interface (132) that matches the second voltage reducer (122).

4. The power supply circuit board (1) according to any one of claims 1 to 3, characterized in that: The pressure reducer (12) can be replaced between a first pressure reducer (121) and a second pressure reducer (122); The power input interface (13) comprises a first power input interface (131) matched with the first voltage reducer (121), and a second power input interface (132) matched with the second voltage reducer (122); The first voltage reducer (121) is a voltage reducer with an input voltage greater than a safety voltage, and the second voltage reducer (122) is a voltage reducer with an input voltage not greater than a safety voltage.

5. The power supply circuit board (1) according to claim 4, characterized in that: The power supply circuit board (1) is also provided with a fifth connector (14), and the fifth connector (14) is electrically connected to the first power input interface (131), the second power input interface (132) and the first connector (11) respectively; The first voltage reducer (121) is provided with a third connector (1211), the second voltage reducer (122) is provided with a fourth connector (1221), and the third connector (1211) and the fourth connector (1221) are the same; If the step-down device (12) is the first step-down device (121), the third connector (1211) is connected to the fifth connector (14); if the step-down device (12) is the second step-down device (122), the fourth connector (1221) is connected to the fifth connector (14).

6. The power supply circuit board (1) according to claim 4, characterized in that: The power supply circuit board (1) is also provided with a fifth connector (14) and a sixth connector (15), the fifth connector (14) being electrically connected to the first power input interface (131) and the first connector (11) respectively, and the sixth connector (15) being electrically connected to the second power input interface (132) and the first connector (11) respectively; The first voltage reducer (121) is provided with a third connector (1211), the second voltage reducer (122) is provided with a fourth connector (1221), and the third connector (1211) and the fourth connector (1221) are different; If the step-down device (12) is the first step-down device (121), the third connector (1211) is connected to the fifth connector (14); if the step-down device (12) is the second step-down device (122), the fourth connector (1221) is connected to the sixth connector (15).

7. The power supply circuit board (1) according to any one of claims 1 to 3, characterized in that: The power supply circuit board (1) comprises a first power supply circuit board (101) and a second power supply circuit board (102); the voltage dropper (12) of the first power supply circuit board (101) is a first voltage dropper (121); and the power input interface (13) of the first power supply circuit board (101) is a first power input interface (131) matching the first voltage dropper (121); The voltage dropper (12) of the second power supply circuit board (102) is a second voltage dropper (122), and the power input interface (13) of the second power supply circuit board (102) is a second power input interface (132) matching the second voltage dropper (122); If the bus output connector (30) of the power supply bus (3) can be connected to the first power input interface (131), the first connector (11) of the first power supply circuit board (101) is connected to the second connector (231) of the voltage regulator (23) of the chip assembly (2); If the bus output connector (30) of the power supply bus (3) can be docked with the second power input interface (132), the first connector (11) of the second power supply circuit board (102) is docked with the second connector (231) of the voltage regulator (23) of the chip assembly (2).

8. The power supply circuit board (1) according to any one of claims 1 to 7, characterized in that: The number of the voltage reducer (12) is one, and the voltage reducer (12) and the first connector (11) are arranged on the power supply circuit board (1) according to the shortest transmission path.

9. The power supply circuit board (1) according to any one of claims 1 to 7, characterized in that: The number of the voltage reducers (12) is multiple; There are a plurality of first connectors (11), the plurality of first connectors (11) forming a plurality of first connector groups (110), and each first connector group (110) comprises a plurality of first connectors (11); Each step-down device (12) is electrically connected to each first connector (11) in a first connector group (110), and the positions of the step-down devices (12) and the first connectors (11) in an electrically connected relationship on the power supply circuit board (1) are arranged according to the shortest transmission path.

10. The power supply circuit board (1) according to any one of claims 1 to 9, characterized in that: The chip assembly (2) comprises a chip circuit board (21), a chip (22) and the voltage regulator (23); The chip (22) is located on one side of the chip circuit board (21), and the voltage regulator (23) is located on the other side of the chip circuit board (21). The position of the chip (22) and the position of the voltage regulator (23) are arranged relative to each other, and the chip (22) and the voltage regulator (23) are electrically connected.

11. A computer device, characterized in that: The computer device comprises a chip assembly (2) and a power supply circuit board (1) according to any one of claims 1 to 10; The chip assembly (2) comprises a chip circuit board (21), a chip (22) and a voltage regulator (23); the chip (22) and the voltage regulator (23) are both located on the chip circuit board (21), and the chip (22) and the voltage regulator (23) are electrically connected; The voltage regulator (23) is provided with a second connector (231), and the first connector (11) of the power supply circuit board (1) is connected to the second connector (231) of the voltage regulator (23).

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