Power module and server

Abstract

The application discloses a power module and a server, and relates to the technical field of power modules. The power module comprises a shell assembly, a power module, a BBU power supply control circuit and a heat dissipation assembly power supply protection control circuit. The power module comprises a PSU and a BBU. The BBU power supply control circuit comprises a first BBU power supply branch, the input end of the first BBU power supply branch is connected with the BBU, the first BBU power supply branch comprises a second switch circuit, and the second switch circuit is in an open state under the condition that the PSU normally supplies power. The heat dissipation assembly power supply protection control circuit comprises a second BBU power supply branch, the input end of the second BBU power supply branch is connected with the BBU, the second BBU power supply branch comprises a fourth switch circuit, and the fourth switch circuit is in an open state under the condition that the PSU normally supplies power. Through the technical scheme, the development cycle of the customized power module can be shortened, and the development cost can be reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power supply modules, in particular to a power supply module and a server. BACKGROUND

[0002] During the operation of a unified storage system, power supply abnormalities can cause storage services to be interrupted, thereby causing data loss or business continuity risks.

[0003] To avoid the above situation, the unified storage usually adopts a highly integrated customized power supply module, however, how to shorten the development cycle of the customized power supply module and reduce the development cost is a technical problem that needs to be solved by the technical personnel in the field at present. SUMMARY

[0004] The application provides a power supply module and a server, which can shorten the development cycle of the customized power supply module and reduce the development cost.

[0005] The application provides a power supply module, which comprises a shell assembly, a power supply module, a battery backup unit (BBU) power supply control circuit and a heat dissipation assembly power supply protection control circuit; the power supply module comprises a power supply unit (PSU) and a BBU.

[0006] The shell assembly adopts the shell of a first power supply module, and the energy efficiency grade of the first power supply module is lower than that of the power supply module.

[0007] The BBU power supply control circuit comprises a first BBU power supply branch, an input end of the first BBU power supply branch is connected with the BBU, and the first BBU power supply branch comprises a second switch circuit; the second switch circuit is in an open state under the condition that the PSU normally supplies power.

[0008] The heat dissipation assembly power supply protection control circuit comprises a second BBU power supply branch, an input end of the second BBU power supply branch is connected with the BBU, and the second BBU power supply branch comprises a fourth switch circuit; the fourth switch circuit is in an open state under the condition that the PSU normally supplies power.

[0009] The application also provides a server comprising the power supply module.

[0010] The power supply module and the server provided by the application can place the power supply module with a high energy efficiency grade in a shell with a low energy efficiency grade, while retaining the appearance form of the power supply module with a high energy efficiency grade, so that a new shell does not need to be redesigned and produced, and does not need to be re-certified, and by adapting the circuit related to the power supply module with a high energy efficiency grade, the development cycle of the customized power supply module can be effectively shortened, and the development cost can be reduced. Attached Figure Description

[0011] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of a power module provided in an embodiment of this application;

[0013] Figure 2 This is a schematic diagram of the structure of a BBU power supply control circuit provided in the embodiments of this application;

[0014] Figure 3 This is a schematic diagram of the power supply protection control circuit for a heat dissipation component provided in an embodiment of this application;

[0015] Figure 4 This is a schematic diagram of the structure of an indicator light control circuit provided in an embodiment of this application;

[0016] Figure 5 This is a flowchart illustrating a control algorithm provided in an embodiment of this application;

[0017] Figure 6 This is a schematic diagram of a power state determination logic provided in an embodiment of this application;

[0018] Figure 7 This is a schematic diagram of an indicator light control logic provided in an embodiment of this application.

[0019] Figure Labels

[0020] 100: Power supply module;

[0021] 110: Housing assembly;

[0022] 120: Power module;

[0023] 121: PSU;

[0024] 122: BBU;

[0025] 130: Indicator light control circuit;

[0026] 140: Heat dissipation components;

[0027] 150: BBU power supply control circuit;

[0028] 151: First PSU power supply branch;

[0029] 152: BBU charging branch;

[0030] 153: First BBU power supply branch;

[0031] 160: Heat dissipation component power supply protection control circuit;

[0032] 161: Second PSU power supply branch;

[0033] 162: Second BBU power supply branch. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0035] It should be noted that in the description of the present application, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. The terms "first", "second" and the like in the present application are used to distinguish similar objects, not to describe a specific order or sequence.

[0036] Some data involved in the embodiments of the present application are explained as follows:

[0037] PSU: A key component in servers and storage devices, responsible for converting alternating current (AC) or high-voltage direct current (DC) into stable low-voltage direct current (such as 12V, 5V, 3.3V, etc.) to power internal components (such as motherboard, hard disk, fan, etc.) of the server. The performance of PSU directly affects the stability and energy efficiency of the server. Common PSU energy efficiency levels include 80 PLUS bronze, silver, gold, platinum and titanium gold, among which titanium gold has the highest energy efficiency (>94%).

[0038] BBU: A backup power module, usually used in conjunction with PSU. When the main power supply (PSU) is abnormal or power off, BBU can provide temporary power to the system to ensure data backup or safe shutdown. In unified storage products, BBU is crucial to data integrity.

[0039] Unified storage (NUS): also known as network unified storage, is an integrated data storage solution that supports multiple storage protocols (such as block storage, file storage, object storage) through a single platform, meeting the needs of diversified application scenarios of enterprises.

[0040] During the operation of the unified storage system, power supply abnormalities (such as power interruption, voltage fluctuation or PSU failure) may cause storage service interruption, thereby causing data loss or business continuity risk. Since unified storage needs to simultaneously carry multiple types of loads such as block, file and object storage, its data protection mechanism has significantly higher reliability requirements for the power supply system than traditional storage devices, so when a power supply abnormality is detected, the system needs to immediately trigger a data backup process, including writing dirty data in the cache to persistent storage media, and ensuring the integrity of the storage controller metadata. This process requires the power supply system to provide continuous power support for several seconds to several minutes after power failure to give data landing and system safe shutdown time.

[0041] To meet the above scenario requirements, unified storage needs to use a PSU+BBU power module. The BBU, as a secondary power supply guarantee, provides continuous power to the storage controller and cache module after the main power supply is completely interrupted, ensuring that data is completely written to non-volatile storage.

[0042] In some embodiments, unified storage products typically use highly integrated custom power modules to optimize space utilization and heat dissipation efficiency, which consist of the following three parts:

[0043] (1) Customized PSU module

[0044] Convert AC power (AC 100-240V) to DC voltage required by the storage system (such as +12V, +5V) to power storage controllers, hard disk backplanes, cooling fans and other components.

[0045] (2) Customized BBU module

[0046] As a miniaturized implementation of UPS (uninterruptible power supply), it provides power to the storage controller cache (Cache) when the main power supply is interrupted to prevent data loss.

[0047] (3) System cooling fan module

[0048] Provide forced air cooling for PSU and BBU modules to ensure stable operation of power supply components in high temperature environments.

[0049] Different regions have different requirements for the energy efficiency level of the power module. For example, in some regions A, the energy efficiency level of the power module of the unified storage product is platinum (efficiency peak 94%), while in some other regions B, the energy efficiency level of the power module of the unified storage product is required to be titanium gold (i.e. 80 PLUS titanium gold certification, requiring that the efficiency under 20%, 50%, and 100% load be not less than 96%, 94%, and 90% respectively, and the idle power consumption be ≤0.5W).

[0050] The highest energy efficiency level of the power module of the early unified storage product is platinum, which can only meet the use standard of region A and cannot meet the use standard of region B. If a titanium gold level power module that meets the use standard of region B is redeveloped, technical problems such as long development cycle and high development cost are faced. Therefore, how to shorten the development cycle of the customized power module and reduce the development cost is a technical problem that technicians in the field urgently need to solve.

[0051] In the face of the above technical problems, an embodiment of the present application provides a power module, which places a titanium gold level power module in an early platinum level power module shell, while retaining the appearance form of the titanium gold level power module (avoiding re-certification), modifying and adapting the titanium gold level power module, realizing the rapid deployment of the titanium gold level power module in the old power shell, effectively shortening the development cycle of the customized power module and reducing the development cost.

[0052] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0053] Referring to Figure 1 , Figure 1 A structure diagram of a power module provided in an embodiment of the present application. In some embodiments, the power module 100 includes:

[0054] The housing assembly 110, the power module 120, the indicator light control circuit 130, the heat dissipation assembly 140, the BBU power supply control circuit 150, and the heat dissipation assembly power supply protection control circuit 160; the power module 120 includes the PSU 121 and the BBU 122.

[0055] The power module 120, the indicator light control circuit 130, the heat dissipation assembly 140, the BBU power supply control circuit 150, and the heat dissipation assembly power supply protection control circuit 160 are all arranged in the housing assembly 110. The housing assembly 110 adopts the housing of a first power module, and the energy efficiency level of the first power module is lower than that of the power module 100.

[0056] It can be understood that, since the energy efficiency of the first power module is lower than that of the present power module, the shell thereof has a certain inventory or production scale in the market, and by directly using the shell, there is no need to redesign and produce a new shell, thereby effectively saving the manufacturing cost of the shell, including mold development cost and material procurement cost.

[0057] In some embodiments, the shell of the first power module can be reworked, and the placement of the PSU 121 and the BBU 122 is adjusted while ensuring that the heat dissipation performance is not affected.

[0058] During the shell reworking process, the principle of unchanged appearance form can be followed, and the appearance style of the titanium gold level power supply can be selected, so that the consistency and recognition of the product appearance can be maintained, the market recognition problem caused by the change of the appearance can be reduced, and the influence on the related certification can be reduced, so as to shorten the certification period and save the certification cost.

[0059] Optionally, the PSU 121 and the BBU 122 can be placed horizontally, which helps to more reasonably utilize the internal space of the power module 100 and optimize the internal element layout, and provides a better basis for the design of the heat dissipation air duct.

[0060] Optionally, to ensure good heat dissipation effect, the width of the lateral air duct can be not less than x (mm); the air duct with sufficient width can ensure smooth flow of air in the power module 100 and effectively take away the heat generated by the PSU 121 and the BBU 122. Wherein, x > 0.

[0061] Optionally, the distance between the PSU 121 and the BBU 122 is set to y (mm). A reasonable distance can not only avoid electromagnetic interference between the two, but also provide a certain buffer space for heat dissipation to prevent heat accumulation between the two. At the same time, the distance is also conducive to subsequent maintenance and repair work. Wherein, y > 0.

[0062] Optionally, the minimum distance between the BBU 122 and the heat dissipation assembly 140 is z (mm). This distance is set to ensure that the fan can effectively extract the heat generated by the BBU 122 from the power module and ensure that the working temperature of the BBU 122 is within a reasonable range. Wherein, z > 0.

[0063] The installation position and the air direction of the heat dissipation assembly 140 can be matched with the heat dissipation demand of the BBU 122 to achieve better heat dissipation effect.

[0064] In some embodiments, the power module 100 further comprises a power adapter wire for adapting the input terminal of the power module 120 to the input terminal on the shell assembly 110.

[0065] In some embodiments, the BBU power supply control circuit 150 is configured to control the BBU 122 to be in the stop power supply state when the PSU 121 is in the normal power supply state.

[0066] For example, the BBU power supply control circuit 150 includes a first BBU power supply branch, an input end of the first BBU power supply branch being connected to the BBU 122, and the first BBU power supply branch including a second switch circuit, the second switch circuit being in the open state when the PSU 121 is in the normal power supply state.

[0067] The BBU power supply control circuit 150 can ensure that the system can be stably and efficiently operated under different working conditions by precisely coordinating the power supply states of the PSU 121 and the BBU 122.

[0068] In some embodiments, the heat dissipation component power supply protection control circuit 160 is configured to control the BBU 122 to stop supplying power to the heat dissipation component 140 when the PSU 121 supplies power to the heat dissipation component 140.

[0069] For example, the heat dissipation component power supply protection control circuit 160 includes a second BBU power supply branch, an input end of the second BBU power supply branch being connected to the BBU 122, and the second BBU power supply branch including a fourth switch circuit, the fourth switch circuit being in the open state when the PSU 121 is in the normal power supply state.

[0070] The heat dissipation component power supply protection control circuit 160 can effectively control the BBU 122 to stop supplying power to the heat dissipation component 140 while ensuring that the PSU 121 normally supplies power to the heat dissipation component 140, so that power supply conflicts can be avoided, energy waste can be reduced, and stable operation of the system can be ensured.

[0071] In some embodiments, the indicator light control circuit 130 is configured to control at least one indicator light arranged on the power supply module 100 according to a preset control algorithm.

[0072] The indicator light control circuit 130 can precisely control at least one indicator light arranged on the power supply module according to the preset control algorithm, so as to provide intuitive system state information for users and facilitate maintenance personnel to quickly diagnose and solve problems.

[0073] The power supply module provided by the embodiments of the present application can place a high-energy-efficiency-grade power supply module in a low-energy-efficiency-grade shell while retaining the appearance form of the high-energy-efficiency-grade power supply module, so that a new shell does not need to be redesigned and produced, and does not need to be re-certified. In addition, by adapting to the circuit related to the high-energy-efficiency-grade power supply module, the development cycle of the customized power supply module can be effectively shortened, and the development cost can be reduced.

[0074] In some embodiments, the BBU power supply control circuit 150 further comprises a first PSU power supply branch and a BBU charging branch.

[0075] In some embodiments, an input end of the first PSU power supply branch is connected with the PSU 121; an output end of the first PSU power supply branch and an output end of the first BBU power supply branch are connected, constituting an output end of the BBU power supply control circuit 150; and the BBU charging branch is connected in series between the PSU 121 and the BBU 122.

[0076] The first PSU power supply branch is a key channel in the BBU power supply control circuit 150 responsible for transmitting the electrical energy of the PSU 121 to subsequent circuits. Its input end is directly connected with the PSU 121, which means that when the PSU 121 is working normally, the stable electrical energy output by the PSU 121 first enters the first PSU power supply branch. The branch can contain a series of protection elements and adjusting elements inside, such as overcurrent protection fuses, voltage regulators, etc. Among them, the overcurrent protection fuse can timely fuse and cut off the circuit when the current exceeds the safe range, preventing damage to subsequent equipment due to excessive current; the voltage regulator can adjust the voltage output by the PSU 121 to a stable value suitable for the subsequent circuit and load, ensuring stable supply of electrical energy.

[0077] The output end of the first PSU power supply branch is connected with the output end of the first BBU power supply branch, which together constitutes the output end of the BBU power supply control circuit 150, providing power support for the load or other related components of the entire system.

[0078] The BBU charging branch is connected in series between the PSU 121 and the BBU 122, and undertakes the important task of charging the BBU 122. When the PSU 121 is in a normal power supply state, the electrical energy is transmitted to the BBU 122 through the BBU charging branch. Optionally, the branch can automatically adjust the charging parameters such as charging current and charging voltage according to the state of charge of the BBU 122. For example, when the BBU 122 has a low charge, the BBU charging branch can charge it with a large current to improve the charging efficiency; when the BBU 122 is close to full charge, the BBU charging branch can automatically reduce the charging current and switch to trickle charging mode to avoid overcharging and effectively protect the battery life of the BBU 122.

[0079] The first BBU power supply branch has a unique dual connection feature, with one end connected to the PSU 121 and the other end connected to the BBU 122. This connection mode enables the first BBU power supply branch to flexibly select the power supply source according to different power supply states. When the PSU 121 is normally powered, the power provided by the PSU 121 can be used preferentially; when the PSU 121 fails or the mains power is interrupted, the first BBU power supply branch can quickly switch to the BBU 122 as the power supply source, ensuring the continuous operation of the system.

[0080] In the above embodiment, the first PSU power supply branch, the BBU charging branch, and the first BBU power supply branch cooperate with each other to form an efficient and stable power supply control system. When the PSU 121 is normally working, the first PSU power supply branch provides main power for the system load, and at the same time, the BBU charging branch charges the BBU 122 to ensure that the BBU 122 is always in a full-power standby state; and the first BBU power supply branch is in standby state, ready to take over the power supply task when the PSU 121 has a problem. When the PSU 121 fails or the mains power is interrupted, the first BBU power supply branch quickly acts to switch to the BBU 122 for power supply, ensuring that the system is not affected by power interruption. This cooperative working mode not only improves the reliability and stability of the power supply system, but also prolongs the service life of the BBU 122 and reduces the maintenance cost of the system.

[0081] Optionally, the first PSU power supply branch includes a first electronic protection circuit and a first switching circuit, the first switching circuit includes a first redundant power supply circuit and a first transistor; and the enable signal end of the first redundant power supply circuit is connected to ground.

[0082] Optionally, the first electronic protection circuit can include an electronic fuse (EFUSE).

[0083] EFUSE is a programmable electronic component that uses the characteristics of semiconductor materials to achieve overcurrent, overvoltage, and other protection functions. Unlike traditional fuses, EFUSE does not cut off the circuit by physical melting, but protects the circuit through electronic control, and in some cases can achieve automatic recovery or re-enable through specific operations.

[0084] EFUSE can integrate current detection circuits and switching elements inside. When the current in the circuit exceeds the preset threshold, the current detection circuit will quickly detect this abnormal situation and send a control signal to make the switching element open, thereby cutting off the circuit and preventing excessive current from damaging subsequent components.

[0085] EFUSE also has over-voltage protection function. It monitors the input voltage in real time through the internal voltage detection circuit. Once the voltage exceeds the set safety range, EFUSE will immediately act to cut off the circuit and protect the load device from the impact of high voltage.

[0086] The protection threshold of EFUSE can be set by programming. This allows designers to flexibly adjust the protection parameters of EFUSE according to different circuit requirements and application scenarios to meet diversified protection requirements.

[0087] Optionally, the first redundant power supply circuit can include an ORING circuit.

[0088] The ORING circuit can realize automatic selection and seamless switching of multiple power supplies through logical OR operation, ensuring continuous power supply for the load when a single power supply fails.

[0089] Optionally, the first transistor can be a Metal-Oxide-Semiconductor Field-Effect Transistor (MOS transistor).

[0090] In some embodiments, the first electronic protection circuit is connected in series between the PSU and the first end of the first redundant power supply circuit; the first end of the first transistor is connected to the first end of the first redundant power supply circuit, the second end of the first transistor is connected to the second end of the first redundant power supply circuit, and the third end of the first transistor is connected to the third end of the first redundant power supply circuit; and the third end of the first redundant power supply circuit is the output end of the first PSU power supply branch.

[0091] Optionally, the second switch circuit includes a second redundant power supply circuit and a second transistor.

[0092] Optionally, the second redundant power supply circuit can include an ORING circuit.

[0093] Optionally, the second transistor can be a MOS transistor.

[0094] In some embodiments, the first end of the second redundant power supply circuit is connected to the BBU 122; the first end of the second transistor is connected to the first end of the second redundant power supply circuit, the second end of the second transistor is connected to the second end of the second redundant power supply circuit, and the third end of the second transistor is connected to the third end of the second redundant power supply circuit; and the third end of the second redundant power supply circuit is the output end of the first BBU power supply branch.

[0095] In some embodiments, when the PSU 121 is in a normal power supply state, the enable signal of the second redundant power supply circuit is invalid, and the second transistor is in an off state.

[0096] Optionally, the BBU charging branch includes a second electronic protection circuit.

[0097] Optionally, the second electronic protection circuit can include an EFUSE.

[0098] In some embodiments, the overcurrent protection value of the second electronic protection circuit can be set based on the safe charging current size of the BBU 122.

[0099] For example, referring to Figure 2 , Figure 2 A structural schematic diagram of a BBU power supply control circuit 150 provided in an embodiment of the present application.

[0100] In some embodiments, the first electronic protection circuit, the first redundant power supply circuit, and the first transistor Q1 form a first PSU power supply branch 151, and the enable signal of the first redundant power supply circuit is always effective.

[0101] The second electronic protection circuit forms a BBU charging branch 152, and the overcurrent protection value of the second electronic protection circuit can be set according to the charging current size.

[0102] The second redundant power supply circuit and the second transistor Q2 form a first BBU power supply branch 153, and the enable signal BBU_EN of the second redundant power supply circuit is controlled. When the PSU 121 normally supplies power, the enable signal BBU_EN of the second redundant power supply circuit is ineffective, and the second transistor Q2 is turned off. Thus, the BBU charging branch 152 can be prevented from being connected to the system power supply through the first BBU power supply branch 153, so that the second redundant power supply circuit in the BBU charging branch 152 can be prevented from overcurrent protection, and the BBU 122 can be prevented from being unable to charge.

[0103] Wherein, P12V_PSU is a main power supply input, and comes from the PSU 121; and P12V_BBU is a backup power supply input, and comes from the BBU 122.

[0104] The first electronic protection circuit is connected between P12V_PSU and subsequent circuits, and is used to disconnect the circuit when the main power supply overflows, so as to protect the subsequent elements.

[0105] The second electronic protection circuit is connected between P12V_BBU and subsequent circuits, and can be used to protect the backup power supply path.

[0106] In some embodiments, the main power supply input is connected to the input end of the first electronic protection circuit; the output end of the first electronic protection circuit is connected to the input end of the first redundant power supply circuit and the drain (D) of the first transistor Q1 of the main power supply path.

[0107] The backup power input is connected to the input terminal of the second electronic protection circuit; the output terminal of the second electronic protection circuit is connected to the input terminal of the second redundant power supply circuit and the drain (D) of the second transistor Q2 in the backup power path.

[0108] The output of the first redundant power supply circuit is connected to the gate (G) of Q1 to control the conduction and cutoff of Q1. The source (S) of Q1 is connected to the output of the circuit (P12V_AUX).

[0109] The output of the second redundant power supply circuit is connected to the gate (G) of Q2 to control the conduction and cutoff of Q2. The source (S) of Q2 is connected to the output of the circuit (P12V_AUX).

[0110] In some embodiments, the first PSU power supply branch 151 further includes a diode D1, and the first BBU power supply branch 153 further includes a diode D2.

[0111] Among them, D1 and D2 can prevent current from flowing back from the circuit output terminal (P12V_AUX) to the power input terminal (P12V_PSU or P12V_BBU).

[0112] When the main power supply P12V_PSU is normal, the first electronic protection circuit is activated, and the first redundant power supply circuit controls Q1 to conduct, allowing the main power supply to supply power to the output P12V_AUX through Q1. At this time, although the backup power supply P12V_BBU is also connected to the circuit, Q2 in the backup power supply path is in the off state due to the action of the second redundant power supply circuit, thereby avoiding circulating current.

[0113] If the main power supply P12V_PSU fails (e.g., voltage drop or power outage), the first electronic protection circuit may disconnect (if an overcurrent condition exists). Simultaneously, the first redundant power supply circuit detects the main power supply abnormality and controls Q1 to turn off. At this time, the second redundant power supply circuit detects the output voltage drop and controls Q2 to turn on. The backup power supply P12V_BBU supplies power to the output P12V_AUX through Q2, ensuring that the load continues to receive power.

[0114] If the backup power supply P12V_BBU is invalid or faulty, the second redundant power supply circuit will keep Q2 off to prevent invalid power from entering the circuit.

[0115] The BBU power supply control circuit 150 provided in the above embodiment can realize power redundancy and automatic switching, which helps to improve the reliability of the power supply module.

[0116] In some embodiments, the power module 100 further includes a gold finger adapter board.

[0117] The gold finger adapter plate can ensure that the power hardware interface matches the system interface.

[0118] Optionally, the power supply protection control circuit 160 of the heat dissipation assembly is arranged on the gold finger adapter plate.

[0119] Optionally, the heat dissipation assembly 140 includes a fan, and the power supply protection control circuit 160 of the heat dissipation assembly is used to supply power to the fan.

[0120] Optionally, the power supply protection control circuit 160 of the heat dissipation assembly further includes a second PSU power supply branch and a third electronic protection circuit.

[0121] Optionally, the third electronic protection circuit includes an EFUSE.

[0122] In some embodiments, the second PSU power supply branch and the second BBU power supply branch are respectively connected to a first end of the third electronic protection circuit, and a second end of the third electronic protection circuit is connected to the fan.

[0123] The power supply protection control circuit 160 of the heat dissipation assembly can provide stable and reliable power supply for the heat dissipation assembly (such as a fan), and implement necessary protection measures during power supply to prevent equipment damage or performance degradation caused by abnormal power supply.

[0124] The second PSU power supply branch serves as a main power supply path and is connected to the PSU 121, and is responsible for providing power for the heat dissipation assembly 140 when the PSU 121 is working normally.

[0125] The second BBU power supply branch serves as a backup power supply path, and its power supply input comes from the BBU 122. When the second PSU power supply branch fails or power is interrupted, the second BBU power supply branch can quickly take over to provide continuous power supply for the heat dissipation assembly, thereby ensuring the continuity and stability of the heat dissipation system.

[0126] The third electronic protection circuit can have multiple functions such as overcurrent protection, overvoltage protection, undervoltage protection, and overheat protection, and can monitor the power supply state in real time and take measures such as cutting off the power supply or adjusting the voltage when an abnormality is detected, to protect the heat dissipation assembly from damage.

[0127] In the embodiments of the present application, the power supply protection control circuit 160 of the heat dissipation assembly realizes stable power supply and comprehensive protection of the heat dissipation assembly through the cooperative work of the second PSU power supply branch, the second BBU power supply branch, and the third electronic protection circuit. This circuit design not only improves the reliability and stability of the heat dissipation system, but also effectively prolongs the service life of the equipment and reduces the maintenance cost.

[0128] Optionally, the second PSU power supply branch includes a third switch circuit, and the third switch circuit includes a third redundant power supply circuit and a third transistor.

[0129] Optionally, the third redundant power supply circuit includes an ORING circuit.

[0130] Optionally, the third transistor can be a MOS transistor.

[0131] In some embodiments, the first end of the third transistor is connected to the first end of the PSU 121 and the first end of the third redundant power supply circuit respectively; the second end of the third transistor is connected to the second end of the third redundant power supply circuit; and the third end of the third transistor is connected to the third end of the third redundant power supply circuit and the first end of the third electronic protection circuit respectively.

[0132] Optionally, the heat dissipation component power supply protection control circuit 160 further includes a first diode.

[0133] In some embodiments, the first diode is connected in series between the PSU and the first end of the third electronic protection circuit.

[0134] The first diode can prevent current from flowing back to the second PSU power supply branch from the third electronic protection circuit.

[0135] Optionally, the fourth switch circuit includes a fourth redundant power supply circuit, a fourth transistor, and a fifth transistor.

[0136] Optionally, the fourth redundant power supply circuit includes an ORING circuit.

[0137] Optionally, the fourth transistor and the fifth transistor can be MOS transistors.

[0138] In some embodiments, the first end of the fourth transistor is connected to the first end of the BBU 122 and the first end of the fourth redundant power supply circuit; the second end of the fourth transistor and the second end of the fifth transistor are both connected to the second end of the fourth redundant power supply circuit; the third end of the fourth transistor is connected to the first end of the fifth transistor; and the third end of the fifth transistor is connected to the third end of the fourth redundant power supply circuit and the first end of the third electronic protection circuit respectively.

[0139] Optionally, the heat dissipation component power supply protection control circuit 160 further includes a second diode and a third diode.

[0140] In some embodiments, the second diode is connected in series between the BBU 122 and the third end of the fourth transistor; and the third diode is connected in series between the first end of the fifth transistor and the first end of the third electronic protection circuit.

[0141] The second diode can ensure that the current only flows from the BBU 122 to the subsequent circuit, preventing the current of other paths from flowing back to the BBU 122 when the fourth transistor is closed, and protecting the battery.

[0142] The third diode can be used for fault isolation. If the fifth transistor or the subsequent circuit is short-circuited, the third diode can be quickly cut off to limit the fault range and protect the BBU 122 and the redundant power supply circuit.

[0143] For example, referring to Figure 3 , Figure 3 FIG. 1 is a structural schematic diagram of a heat dissipation assembly power supply protection control circuit 160 provided in an embodiment of the present application.

[0144] In some embodiments, the heat dissipation assembly power supply protection control circuit 160 includes a second PSU power supply branch 161, a second BBU power supply branch 162, and a third electronic protection circuit.

[0145] The PSU 121 and the BBU 122 are supplied with power through the redundant power supply circuit and then through the third electronic protection circuit to the fan.

[0146] In some embodiments, P12V_PSU is used as the main power input and is connected to the power input pin of the third redundant power supply circuit and the drain of Q3; P12V_BBU is used as the backup power input and is connected to the drain of Q4.

[0147] In some embodiments, the third transistor Q3 and the third redundant power supply circuit form the second PSU power supply branch 161. When the PSU power supply is abnormal, the third redundant power supply circuit controls the third transistor Q3 to be disconnected, preventing the BBU power supply plane from flowing back to the PSU power supply plane.

[0148] The fourth transistor Q4, the fifth transistor Q5, and the fourth redundant power supply circuit form the second BBU power supply branch 162. The fourth transistor Q4 and the fifth transistor Q5 are designed back-to-back to prevent the PSU power supply plane voltage fluctuation from reaching the output undervoltage protection and to consume the energy of the BBU 122 for fan power supply.

[0149] The third electronic protection circuit can be configured with overvoltage protection, undervoltage protection, and overcurrent protection functions to ensure that the fan power supply is within a safe power supply range. The overcurrent protection prevents the PSU 121 and the BBU 122 power supply link from being abnormal due to fan abnormalities and prevents fault diffusion.

[0150] In some embodiments, a transient voltage suppressor (TVS) can be arranged at the input end of the third electronic protection circuit, and a freewheeling diode can be designed at the output end to prevent other power supply modules from being damaged due to fan abnormalities and fault diffusion.

[0151] In the embodiments of the present application, the redundant switching of the power supply can be realized, and the overcurrent protection is provided by the electronic fuse, so that a reliable and stable power supply system is provided for the fan.

[0152] In some embodiments, the indicator light control circuit 130 comprises a controller connected with at least one indicator light; the at least one indicator light comprises at least one of the following: a power normal state indicator light, a power abnormal state indicator light, a heat dissipation component normal state indicator light, a heat dissipation component abnormal state indicator light, a power positioning indicator light, and a heat dissipation component positioning indicator light.

[0153] In some embodiments, the above-mentioned controller is used for at least one of the following:

[0154] (1) Controlling the power normal state indicator light or the power abnormal state indicator light to be lit according to the value of the power state register.

[0155] For example, when the values of the flag bits of the power state register are all the first value, the power normal state indicator light is controlled to be lit; when the value of any flag bit of the power state register is the second value, the power abnormal state indicator light is controlled to be lit.

[0156] (2) Controlling the heat dissipation component normal state indicator light or the heat dissipation component abnormal state indicator light to be lit according to the deviation value between the fan speed sampling value of the heat dissipation component 140 and the fan speed setting value.

[0157] For example, when the above-mentioned deviation value is less than a preset threshold, the heat dissipation component normal state indicator light is controlled to be lit; when the above-mentioned deviation value is greater than or equal to the preset threshold, the heat dissipation component abnormal state indicator light is controlled to be lit.

[0158] For example, the fan speed sampling value is compared with the setting value, if the deviation is within 30%, it is determined that the fan state is normal, and if the deviation exceeds 30%, it is determined that the fan state is abnormal.

[0159] In some embodiments, the fan state determination result can be filtered to improve the accuracy and stability of the state determination.

[0160] In some embodiments, the state of the fan can be sampled periodically. For example, the state sampling is performed once every certain time interval (such as 10 ms), and the sampled fan state is stored in a state sequence.

[0161] Further, a current fan state variable can be maintained, and after a new fan state is sampled, it is compared with the current fan state variable. If they are different, it is considered that the change of the fan state is detected. At this time, the time of the state change is recorded, and the subsequent state is monitored.

[0162] From the time when the fan state change is detected, the state sampling is continued and the state obtained by each sampling is stored into the state sequence in turn. Meanwhile, a counter is set to count the number of continuous same states. The counter is incremented by 1 each time the state obtained by sampling is consistent with the changed state; if the state obtained by sampling changes, the counter is reset.

[0163] When the value of the counter reaches a specified preset (e.g. 20), it indicates that the fan state has been maintained unchanged for 20 states after the change. At this time, it can be considered that the new state of the fan has been stabilized, and the current fan state variable is updated to this new stable state. Meanwhile, the corresponding control logic can be triggered, such as adjusting the power supply strategy of the heat dissipation assembly or other related operations according to the new fan state.

[0164] (3) According to the received system positioning instruction, the power positioning indicator light and / or the heat dissipation assembly positioning indicator light are controlled to be lit.

[0165] When receiving the system positioning instruction, the power or fan positioning indicator light is lit, which can facilitate the user to find the power module at the first time.

[0166] For example, referring to Figure 4 , Figure 4 is a structural schematic diagram of an indicator light control circuit 130 provided in the embodiments of the present application.

[0167] In some embodiments, the indicator light control circuit 130 includes a driving unit, a controller, LED0, LED1, LED2, LED3, LED4, LED5, LED6, LED7, general input-output interfaces (GPIOs), and a plurality of resistors.

[0168] Optionally, the driving unit can be an I2C-BUS LED driving unit.

[0169] Among them, the serial data line (Serial Data Line, SDA) and the serial clock line (Serial Clock Line, SCL) are two core signal lines in the Inter-Integrated Circuit (I2C) communication protocol, which are used to realize the bidirectional data transmission and synchronization between devices. RESET represents the reset signal pin. DD V represents the direct current working voltage (such as connecting a 5V power supply); Vss represents the ground pin.

[0170] In some embodiments, LED0 can be defined as a normal power state indicator, LED1 as an abnormal power state indicator, LED2 as a normal heat dissipation component state indicator, LED3 as an abnormal heat dissipation component state indicator, LED4 as a power positioning indicator, and LED5 as a fan positioning indicator.

[0171] In some embodiments, a control algorithm can be set to light the normal power state indicator or the abnormal power state indicator according to the power state register reading value; and / or, light the normal heat dissipation component state indicator or the abnormal heat dissipation component state indicator according to the deviation between the fan speed sampling value and the fan speed setting value.

[0172] For example, referring to Figure 5 , Figure 5 The flowchart of a control algorithm provided in the embodiments of the present application is shown.

[0173] In some embodiments, the control algorithm includes:

[0174] S501, initialization operation.

[0175] In some embodiments, the controller enters the initialization subprogram when powered on or reset.

[0176] S502, configuration subprogram.

[0177] After the controller successfully completes the initialization, the configuration subprogram is entered.

[0178] After the controller is initialized, the configuration subprogram is entered, including: configuring the SMBUS register related parameters (baud rate, verification mode, etc.); configuring the I2C-BUS LED driving unit; configuring the control register (Control register), the selector register (selector registers), the frequency prescaler 0 / 1 (Frequency Prescaler0 / 1), and the pulse width modulation register 0 / 1 (Pulse Width Modulation 0 / 1).

[0179] S503, calling the SMBUS subprogram to read the power state.

[0180] S504, calling the fan speed sampling subprogram to sample the fan speed.

[0181] S505, calling the power fan state determination subprogram to determine the power state fan state.

[0182] S506, calling the indicator light control subprogram to control the indicator light.

[0183] For example, refer to Figure 6 , Figure 6 A power state determination logic diagram provided in an embodiment of the present application.

[0184] Among them, flag bit 15 (VOUT): this flag bit is used to indicate the output voltage state. When the flag bit 15 is 0, it means that the output voltage is within the normal range; when the flag bit 15 is 1, it means that the output voltage is abnormal, which may be too high or too low, exceeding the preset normal voltage threshold.

[0185] Flag bit 14 (IOUT / POUT): this flag bit reflects the output current or output power state. If the flag bit 14 is 0, it means that the output current or power is at a normal level; if it is 1, it means that the output current is too large or the power exceeds the rated range, which has the risk of overcurrent or over power.

[0186] Flag bit 13 (INPUT): it represents the input power state. When the flag bit 13 is 0, the input power is normal, and the voltage and current parameters meet the requirements; when the flag bit 13 is 1, the input power is abnormal, which may be unstable input voltage, input power interruption and other problems.

[0187] Flag bit 10 (FANS): this flag bit is related to the state of the cooling fan. When the flag bit 10 is 0, it means that the cooling fan is running normally and can effectively cool the power supply; when the flag bit 10 is 1, it means that the cooling fan has a fault, such as abnormal speed, stall, etc., which may cause poor heat dissipation of the power supply.

[0188] Flag bit 2 (TEMPERATURE): this flag bit is used to indicate the power supply temperature state. When the flag bit 2 is 0, the power supply temperature is within the normal range; when the flag bit 2 is 1, it means that the power supply temperature is too high, which may exceed the safe working temperature and has the risk of overheating.

[0189] In some embodiments, the power state register is analyzed, 0 is a normal state and 1 is an abnormal state; when all flag bits are 0, it means that the power supply is in a normal state, and when any flag bit is 1, it means that the power supply is in an abnormal state.

[0190] In some embodiments, the indicator light control subprogram can control the above-mentioned indicator light according to the power state and fan state.

[0191] For example, refer to Figure 7 , Figure 7 An indicator light control logic diagram provided in an embodiment of the present application.

[0192] Wherein, when the LED is in low level state "Low", the LED will light up; "High resistance state" means that the LED is in high impedance state, which is equivalent to being disconnected, and the LED will not light up; "Flickering at the frequency of PWM0" and "Flickering at the frequency of PWM1" respectively means that the LED flickers at the rate of PWM0 and PWM1, which are used for specific positioning indication functions.

[0193] In some embodiments, when the power supply state is normal, the power supply normal indication light is lit up, and the other power supply indication light control pins are configured in high resistance state. When the power supply state is abnormal, the power supply abnormal indication light is lit up, and the other power supply indication light control pins are configured in high resistance state. When the power supply positioning indication light is lit up, the other power supply indication light control pins are configured in high resistance state. When the fan state is normal, the fan normal indication light is lit up, and the other fan indication light control pins are configured in high resistance state. When the fan state is abnormal, the fan abnormal indication light is lit up, and the other fan indication light control pins are configured in high resistance state. When the fan positioning indication light is lit up, the other fan indication light control pins are configured in high resistance state. Fan power supply protection control circuit.

[0194] Through the above-mentioned indication light control logic, the system running state can be clearly and intuitively reflected through the different performances of the LED.

[0195] The power supply module provided in the embodiments of the present application places the standard titanium gold power module in the early power shell through early power shell repair, and the titanium gold power appearance form is unchanged. A design gold finger transfer plate is provided to ensure that the power supply module matches the system interface, shortens the product development cycle, saves the power component safety certification cost, and solves the urgent market demand problem. In addition, a fan power supply protection control circuit is designed to ensure that the fan works in a safe power supply range, an BBU control circuit is optimized, different state power supply branches are standardized, and the problem that one power supply plane is abnormal and flows back to another power supply plane is prevented, thereby improving the power supply stability and reliability and achieving the purpose of intelligent control.

[0196] The embodiments of the present application also provide a server, which includes the power supply unit described in the above embodiments, and details can be referred to the content described in the above embodiments, which will not be described here.

[0197] It should be noted that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware, computer software or combination of both. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been described in general in the above description. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0198] The technical solutions provided by the present application are described in detail above. The principles and implementation manners of the present application are described by applying specific examples, and the above description of the examples is only applicable to helping understand the technical solutions of the present application and the core ideas thereof. It should be noted that, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A power supply module, characterized in that, The power module includes a housing assembly, a power module, a battery backup unit power supply control circuit, and a heat dissipation component power supply protection control circuit; the power module includes a power supply unit and a battery backup unit. The housing assembly adopts the housing of the first power module, and the energy efficiency level of the first power module is lower than that of the power module. The battery backup unit power supply control circuit includes a first battery backup unit power supply branch, the input terminal of which is connected to the battery backup unit. The first battery backup unit power supply branch includes a second switch circuit, which is in an open state when the power supply unit is supplying power normally. The power supply protection control circuit of the heat dissipation component includes a second battery backup unit power supply branch. The input terminal of the second battery backup unit power supply branch is connected to the battery backup unit. The second battery backup unit power supply branch includes a fourth switch circuit. The fourth switch circuit is in the off state when the power supply unit is normally powered. The power supply control circuit of the battery backup unit also includes a power supply branch of the first power supply unit and a charging branch of the battery backup unit. The input terminal of the power supply branch of the first power supply unit is connected to the power supply unit; the output terminal of the power supply branch of the first power supply unit and the output terminal of the power supply branch of the first battery backup unit are connected to form the output terminal of the power supply control circuit of the battery backup unit; the charging branch of the battery backup unit is connected in series between the power supply unit and the battery backup unit. The first power supply unit power supply branch includes a first electronic protection circuit and a first switching circuit. The first switching circuit includes a first redundant power supply circuit and a first transistor. The enable signal terminal of the first redundant power supply circuit is grounded. The first electronic protection circuit is connected in series between the power supply unit and the first terminal of the first redundant power supply circuit. The first terminal of the first transistor is connected to the first terminal of the first redundant power supply circuit, the second terminal of the first transistor is connected to the second terminal of the first redundant power supply circuit, and the third terminal of the first transistor is connected to the third terminal of the first redundant power supply circuit. The third terminal of the first redundant power supply circuit is the output terminal of the first power supply unit power supply branch.

2. The power module according to claim 1, characterized in that, The second switching circuit includes a second redundant power supply circuit and a second transistor; The first terminal of the second redundant power supply circuit is connected to the battery backup unit; The first terminal of the second transistor is connected to the first terminal of the second redundant power supply circuit, the second terminal of the second transistor is connected to the second terminal of the second redundant power supply circuit, and the third terminal of the second transistor is connected to the third terminal of the second redundant power supply circuit; the third terminal of the second redundant power supply circuit is the output terminal of the power supply branch of the first battery backup unit. When the power supply unit is in normal power supply state, the enable signal of the second redundant power supply circuit is invalid, and the second transistor is in the off state.

3. The power supply module according to claim 1, characterized in that, The battery backup unit charging branch includes a second electronic protection circuit. The overcurrent protection value of the second electronic protection circuit is set based on the safe charging current of the battery backup unit.

4. The power supply module according to claim 1, characterized in that, It also includes a gold finger adapter board and a heat dissipation assembly; the power supply protection control circuit of the heat dissipation assembly is disposed on the gold finger adapter board; The heat dissipation component includes a fan, and the power supply protection control circuit of the heat dissipation component is used to supply power to the fan.

5. The power supply module according to claim 4, characterized in that, The power supply protection control circuit for the heat dissipation component also includes a power supply branch for the second power supply unit and a third electronic protection circuit. The power supply branch of the second power supply unit and the power supply branch of the second battery backup unit are respectively connected to the first terminal of the third electronic protection circuit, and the second terminal of the third electronic protection circuit is connected to the fan.

6. The power supply module according to claim 5, characterized in that, The power supply branch of the second power supply unit includes a third switching circuit, which includes a third redundant power supply circuit and a third transistor; the first terminal of the third transistor is connected to the power supply unit and the first terminal of the third redundant power supply circuit respectively. The second terminal of the third transistor is connected to the second terminal of the third redundant power supply circuit. The third terminal of the third transistor is connected to the third terminal of the third redundant power supply circuit and the first terminal of the third electronic protection circuit, respectively.

7. The power supply module according to claim 6, characterized in that, The power supply protection control circuit for the heat dissipation component also includes a first diode; The first diode is connected in series between the power supply unit and the first terminal of the third electronic protection circuit.

8. The power supply module according to claim 5, characterized in that, The fourth switching circuit includes a fourth redundant power supply circuit, a fourth transistor, and a fifth transistor; The first terminal of the fourth transistor is connected to the first terminal of the battery backup unit and the first terminal of the fourth redundant power supply circuit, respectively. The second terminal of the fourth transistor and the second terminal of the fifth transistor are both connected to the second terminal of the fourth redundant power supply circuit. The third terminal of the fourth transistor is connected to the first terminal of the fifth transistor; The third terminal of the fifth transistor is connected to the third terminal of the fourth redundant power supply circuit and the first terminal of the third electronic protection circuit, respectively.

9. The power supply module according to claim 8, characterized in that, The power supply protection control circuit for the heat dissipation component also includes a second diode and a third diode; The second diode is connected in series between the battery backup unit and the third terminal of the fourth transistor; The third diode is connected in series between the first terminal of the fifth transistor and the first terminal of the third electronic protection circuit.

10. The power supply module according to claim 1, characterized in that, It also includes an indicator light control circuit, which includes a controller connected to at least one indicator light; the at least one indicator light includes at least one of the following: a power supply normal status indicator light, a power supply abnormal status indicator light, a heat dissipation component normal status indicator light, a heat dissipation component abnormal status indicator light, a power supply positioning indicator light, and a heat dissipation component positioning indicator light. The controller is used for at least one of the following: Based on the value of the power status register, control the power normal status indicator or the power abnormal status indicator to light up; Based on the deviation between the sampled fan speed value and the set fan speed value of the heat dissipation component, the normal status indicator light or the abnormal status indicator light of the heat dissipation component is controlled to be lit. Based on the received system positioning command, control the power positioning indicator and / or the heat dissipation component positioning indicator to light up.

11. The power module according to claim 10, characterized in that, The controller is specifically used for at least one of the following: When all the flag bits in the power status register are at the first value, the power normal status indicator light is turned on. When any flag bit in the power status register has a value of the second value, the power abnormality indicator light is turned on. When the deviation value is less than a preset threshold, the normal status indicator light of the heat dissipation component is turned on. When the deviation value is greater than or equal to the preset threshold, the abnormal status indicator light of the heat dissipation component is turned on.

12. The power supply module according to claim 1, characterized in that, The power module also includes a power adapter cable for connecting the input terminals of the power module to the input terminals on the housing assembly.

13. A server, characterized in that, Includes the power module as described in any one of claims 1 to 12.

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