Pressurized easy-to-plug multi-path redundant power supply plug-in box adopting pure water cooling heat dissipation

Abstract

The invention belongs to the technical field of heat dissipation of power supply equipment, and particularly relates to an under-pressure easy-to-plug multi-path redundant power supply plug-in box adopting pure water cooling heat dissipation. Comprising an upper water-cooling plate and a lower water-cooling plate which are respectively arranged at the top and the bottom of the power plug-in box; s-shaped cooling flow channels are formed in the upper water cooling plate and the lower water cooling plate. A water outlet of the upper water-cooling plate is communicated with a water inlet of the lower water-cooling plate through a pipeline, and the water inlet of the upper water-cooling plate and the water outlet of the lower water-cooling plate form a cooling liquid circulation loop with an external water-cooling system through an under-pressure plugging cold water connector; the vapor chamber is linearly arranged in the power supply plug-in box left and right at intervals, and the upper end and the lower end of the vapor chamber are in contact with the upper water cooling plate and the lower water cooling plate respectively for heat conduction; the vapor chamber comprises a heat conduction substrate and a U-shaped heat conduction pipe; through the innovative design, the problems of insufficient heat dissipation, cooling liquid leakage, pressure fluctuation and the like of a multi-path redundant power supply system in the prior art are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of heat dissipation of power supply equipment, and in particular relates to a pressurized easy-plug multi-channel redundant power supply plug-in box which adopts pure water cooling for heat dissipation. Background Art

[0002] When multi-way redundant power supply boxes are widely used in power supply systems with high reliability requirements, especially in key areas such as communication base stations, sonar systems, and military equipment. In order to ensure the reliability of these devices when running under high load, traditional power supply boxes usually use air cooling or liquid cooling systems for heat dissipation. How to design a liquid-cooled power supply system with extremely high stability and reliability is very necessary. The cooling system of Chuantong generally adopts an air cooling system, which uses fans and other devices for heat dissipation. It is simple and low-cost. However, the heat dissipation effect of the air cooling system is relatively poor, especially in a multi-way redundant power supply system. Multiple power modules generate heat at the same time, and air flow is difficult to effectively take away the heat, which may cause equipment overheating and affect the stability and life of the system. At the same time, the air cooling noise is large, which will cause certain hearing damage to manned operating spaces.

[0003] Liquid cooling systems use circulating coolant to remove heat and are suitable for high-power power supply systems. Liquid cooling systems usually have better heat dissipation than air cooling, but during plug-in and unplug operations, liquid cooling systems often face problems such as coolant leakage and pressure fluctuations, which can seriously affect heat dissipation efficiency and system stability. In a high-load, frequently plug-in and unplug working environment, the sealing and reliability of the liquid cooling system become important technical difficulties.

[0004] (1) Poor heat dissipation: Traditional air cooling systems have limited heat dissipation capacity for power modules with high power loads, making it difficult to effectively control system temperature. This is especially true in multi-way redundant power supply systems. When multiple power modules generate heat at the same time, air flow cannot effectively remove all the heat, which may cause equipment overheating or even failure.

[0005] (2) Coolant leakage: Traditional liquid cooling systems are prone to coolant leakage during the plug-in and unplug process. Since the interface of the liquid cooling system is usually external, frequent plug-in and unplug operations may lead to poor sealing, which in turn causes coolant leakage, affects the heat dissipation effect, and even damages the power supply equipment.

[0006] (3) Poor system stability: In traditional designs, the heat exchange efficiency between the cooling system and the power module may be affected by the flow of the coolant, resulting in poor stability of the redundant power supply system under high load conditions. Especially in complex working environments, the cooling system may be unable to work stably due to leakage, pressure fluctuations and other problems. Summary of the invention

[0007] The purpose of the present invention is to provide a pressurized, pluggable, multi-channel redundant power supply box that adopts pure water cooling to dissipate heat, and to solve the problems of insufficient heat dissipation, coolant leakage, pressure fluctuation, etc. of the multi-channel redundant power supply system in the prior art through innovative design.

[0008] In order to solve the above technical problems, the present invention provides a pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling and heat dissipation, comprising:

[0009] The upper water-cooling plate and the lower water-cooling plate are respectively located at the top and the bottom of the power plug box; the upper water-cooling plate and the lower water-cooling plate are provided with serpentine cooling channels inside; the water outlet of the upper water-cooling plate and the water inlet of the lower water-cooling plate are connected through a pipeline, and the water inlet of the upper water-cooling plate and the water outlet of the lower water-cooling plate are connected to the external water cooling system through a pressurized plug-in cold water connector to form a coolant circulation circuit;

[0010] A heat spreader is linearly arranged in the power plug box at intervals on the left and right sides, and the upper and lower ends of the heat spreader are in contact with the upper water cooling plate and the lower water cooling plate for heat conduction respectively; the heat spreader includes a heat conducting substrate and a U-shaped heat conducting pipe; two U-shaped heat conducting pipes are staggeredly embedded inside the heat conducting substrate to form a central symmetrical distribution structure; the outer surface of the heat conducting substrate is covered with a heat conducting adhesive layer;

[0011] A plurality of pluggable redundant boards are inserted and placed between each two adjacent heat spreaders and are in contact with the heat spreaders for heat conduction.

[0012] Preferably, the plurality of pluggable redundant boards are composed of a plurality of power supply modules, which are, in sequence, two low-voltage, low-power DC power supply unit power supply modules, four low-voltage, high-power channel power supply modules and a power management module.

[0013] Preferably, it also includes an input circuit, an internal PFC circuit, an internal auxiliary power supply, a power-on control module, a multi-channel power supply control module, a device peripheral power supply control module, a display, a keyboard power supply filter circuit, an output filter sampling circuit, and input and output redundant connectors;

[0014] The input circuit is connected to the internal PFC circuit and the internal auxiliary power supply, and the internal PFC circuit is connected to multiple power supply modules; the two low-voltage, low-power DC power supply unit power supply modules are connected to the device peripheral power supply control module, and the device peripheral power supply control module is connected to the display and keyboard power supply filter circuit through a magnetic latching relay; the four low-voltage, high-power channel power supply modules are connected to the multi-channel power supply control module, and the multi-channel power supply control module is connected to the corresponding four output filter sampling circuits through a magnetic latching relay; the output redundant low voltage of the display, keyboard power supply filter circuit and the output filter sampling circuit is connected to the input and output redundant connectors; the input and output redundant connectors also include input power supply for the input circuit ; The internal auxiliary power supply is connected to the power management module and the power-on control module, and the power-on control module is connected to the input and output redundant connectors; the power-on control module is connected to the multi-channel power supply control module and the device peripheral power supply control module through a fault cut-off control line, and the display and keyboard power supply filter circuit and the output end of the output filter sampling circuit are also connected to the power management module; the power management module is connected to the monitoring module on each redundant power module through RS422 and CAN communication protocols, and is used to collect the current, voltage, power, and temperature operating status data of each power module, and when the operating status data is abnormal, it is reported to the power-on control module through the serial port, and automatically switches to the standby power module according to the fault type.

[0015] Preferably, the power module is a power circuit with redundant current sharing capability, specifically comprising: chip U2, capacitor C11, capacitor C17, capacitor C20, capacitor CY1, capacitor CY4, capacitor CY5, resistor R21 and resistor R41; the VIN+ end of the chip U2 is connected to a low-level power-on and high-level shutdown signal, the VIN- end of the chip U2 is connected to one end of capacitor C20 and capacitor CY5, the other end of the capacitor C20 is connected to the +ON / OFF end of the chip U2, and the other end of the capacitor CY5 is connected to the +ON / OFF end of the chip U2. One end is connected to capacitor CY4, resistor R41, capacitor C17 and one end of capacitor C11, as well as the -S end of the chip U2 and the -VO end of the chip U2. The other end of the capacitor CY4 is grounded. The TRIM end of the chip U2 is connected to the other end of the resistor R41 and one end of the resistor R21. The other end of the resistor R21 is connected to capacitor C17 and the other end of capacitor C11, the +VO end of the chip U2, the S end of the chip U2 and one end of capacitor CY1. The other end of the capacitor CY1 is grounded.

[0016] Preferably, it also includes a fault cut-off redundant circuit for cutting off the magnetic holding relay, and the fault cut-off redundant circuit includes: a magnetic holding relay K1 and a chip U1; the OB end of the chip U1 is connected to pin 1 of the magnetic holding relay K1, the GND end of the chip U1 is grounded, the A end of the chip U1 is connected to port A, the B end of the chip U1 is connected to port B, the OA end of the chip U1 is connected to pin 2 of the magnetic holding relay K1, the VIN end of the chip U1 is connected to the power supply +5V, and the pins 3 and 4 of the magnetic holding relay K1 are respectively connected to the VOUT_IN and VOUT_OUT ports.

[0017] Preferably, the circuit of the monitoring module includes: a single chip microcomputer circuit, a voltage monitoring circuit and a temperature monitoring circuit;

[0018] The voltage monitoring circuit includes: a chip U12, a resistor R01, a resistor R03, a resistor R06, a resistor R09, a capacitor C3 and a capacitor C5; pin 2 of the chip U12 is connected to a power supply of +3V, pin 1 of the chip U12 is grounded, pin 3 of the chip U12 is connected to capacitor C5, resistor R01, resistor R03 and one end of resistor R06, the other end of the resistor R01 is connected to a power supply of +27V, the other end of the resistor R03 is connected to a voltage signal to be monitored and one end of capacitor C3, the other ends of the resistor R06, capacitor C3, capacitor C5, and one end of resistor R09 are grounded, and the other end of the resistor R09 is grounded;

[0019] The temperature monitoring circuit includes: a chip U21 and a resistor R02; the VCC terminal of the chip U21 is connected to a power supply of +3V, the DQ terminal of the chip U21 is connected to a temperature signal to be monitored and one end of the resistor R02, the other end of the resistor R02 is connected to a power supply of +3V, and the GND terminal of the chip U21 is grounded.

[0020] Preferably, the power management module also includes a configured central control board, and the central control board includes a state storage circuit, which specifically includes: chip U10, resistor R41 and resistor R42; E1, E2, E3 and VSS terminals of the chip U10 are grounded, the VCC terminal of the chip U10 is connected to the power supply +5V, the WC terminal of the chip U10 is grounded, the SCL terminal of the chip U10 is connected to one end of the resistor R41, the other end of the resistor R41 and one end of the resistor R42 are connected to the power supply +5V, and the other end of the resistor R42 is connected to the SDA terminal of the chip U10.

[0021] Preferably, the circuit of the RS422 communication protocol specifically includes: chip U4, chip U5, resistor R1, resistor R2, resistor R3, resistor R4, resistor R7, resistor R8, resistor R9, resistor R10, capacitor C1, capacitor C2, TVS tube D1, TVS tube D2, TVS tube D3, TVS tube D4, TVS tube D5, TVS tube D6, fuse F1, fuse F2, fuse F3, fuse F4 and RS422 interface; the RO end of the chip U4 is connected to the RX differential signal, the RE end of the chip U4 is connected to one end of the resistor R1 and the DE end of the chip U4, the other end of the resistor R1 is grounded, and the chip U4 The VCC end of the chip U4 is connected to the power supply 3V and one end of the capacitor C1, and the other end of the capacitor C1 is grounded. The B end of the chip U4 is connected to the resistor R7, the TVS tube D1, the TVS tube D2 and one end of the fuse F1. The other ends of the resistor R7 and the TVS tube D1 are grounded. The other end of the fuse F1 is connected to one end of the resistor R3 and pin 1 of the RS422 interface. The A end of the chip U4 is connected to the resistor R8, the TVS tube D2, the TVS tube D3 and one end of the fuse F2. The other end of the resistor R8 is connected to the power supply 3V, the other end of the TVS tube D3 is grounded, and the other end of the fuse F2 is connected to the other end of the resistor R3 and pin 2 of the RS422 interface.

[0022] The DI end of the chip U5 is connected to the TX differential signal, the RE end of the chip U5 is connected to one end of the resistor R2 and the DE end of the chip U5, the other end of the resistor R2 is connected to the power supply 3V, the VCC end of the chip U5 is connected to the power supply 3V and one end of the capacitor C2, the other end of the capacitor C2 is grounded, the B end of the chip U5 is connected to the resistor R9, the TVS tube D4, the TVS tube D5 and one end of the fuse F3, the other ends of the resistor R9 and the TVS tube D4 are grounded, the other end of the fuse F3 is connected to one end of the resistor R4 and the 3rd pin of the RS422 interface, the A end of the chip U5 is connected to the resistor R10, the TVS tube D5, the TVS tube D6 and one end of the fuse F4, the other end of the resistor R10 is connected to the power supply 3V, the other end of the TVS tube D6 is grounded, and the other end of the fuse F4 is connected to the other end of the resistor R4 and the 4th pin of the RS422 interface.

[0023] Preferably, the circuit of the CAN communication protocol specifically includes: a chip U8 and a resistor R71; the TXD end of the chip U8 is connected to the TX differential signal, the VCC end of the chip U8 is connected to the power supply +5V, the RXD end of the chip U8 is connected to the RX differential signal, the STB end and the GND end of the chip U8 are grounded, the VIO end of the chip U8 is connected to the power supply +5V, the CANH end and the CANL end of the chip U8 are connected to the series resistor R71, and are respectively connected to the CAN2_H and CAN2_L signals.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) Efficient heat dissipation: By adopting pure water cooling technology, the present invention can provide a more efficient heat dissipation effect compared with the traditional air cooling system. The water cooling system has a high heat conduction efficiency and can quickly remove the heat generated by the power module, ensuring stable operation of the equipment under high load and avoiding equipment failure caused by overheating.

[0026] (2) Preventing coolant leakage: The present invention adopts a pressurized easy-plug connector design to avoid the problem of coolant leakage during the plug-in and unplug process of the liquid cooling system due to loose interfaces or poor sealing. The pressurized design ensures that the coolant is always in a sealed state, thereby preventing liquid cooling leakage and ensuring that the cooling system always works effectively.

[0027] (3) Adaptability to harsh environments: The present invention uses waterproof, anti-corrosion, and pressure-resistant materials and designs, which can withstand the challenges of harsh environments such as high humidity, high salt, and high temperature. It is particularly suitable for applications such as ocean sonar and deep-sea exploration. The system's sealing and durability ensure its reliability in long-term use.

[0028] (4) Improving system stability and reliability: The present invention optimizes the heat dissipation and plugging under pressure of the multi-way redundant power supply system to ensure the stable operation of multiple power modules under high load conditions, thereby enhancing the stability and fault resistance of the entire power supply system and reducing the complexity of maintenance. The plug-in box can be removed under pressure without affecting the operation of other water-cooling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall functional block diagram of the pressure-sensitive easy-plug multi-channel redundant power supply plug-in box of the present invention with pure water cooling and heat dissipation.

[0030] Figure 2 It is a structural diagram of the heat spreader of the present invention.

[0031] Figure 3 It is a structural diagram of the upper and lower water cooling plates of the present invention.

[0032] Figure 4 The present invention is a power supply circuit diagram with redundant current sharing capability.

[0033] Figure 5 This is a fault cut-off redundant circuit diagram of the present invention.

[0034] Figure 6 The invention discloses a circuit diagram of a power supply monitoring single chip computer.

[0035] Figure 7 This is a voltage and temperature monitoring circuit diagram of the present invention.

[0036] Figure 8 It is a state storage circuit diagram of the present invention.

[0037] Fig. 9 It is the communication 422 circuit diagram of the present invention.

[0038] Fig.10 It is a communication CAN circuit diagram of the present invention. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0040] like Figures 1 to 10 As shown, the water cooling system of the present invention mainly includes an upper water cooling plate, a lower water cooling plate, a heat spreader and other components. Its design has a high heat dissipation efficiency, can efficiently take away the heat generated by the power module, and ensure that the coolant does not leak during the plug-in and unplug operation.

[0041] Coolant selection: Pure water is selected as the coolant because it has high thermal conductivity and is non-toxic and non-corrosive, making it suitable for heat dissipation of high-precision power supply equipment.

[0042] Heat spreader design: The power supply box is equipped with two upper and lower water cooling plates, and each power module is equipped with an independent heat spreader. The heat spreader is made of double inverted U-shaped heat pipes embedded and welded, where B, C, D, and E are the heat source positions, and A and F are the contact surfaces of the water cooling plate, so that the heat spreader has high thermal conductivity. The heat spreader and the power module are in close contact through efficient non-sticky thermal interface materials (thermal conductive glue) to ensure efficient heat conduction.

[0043] The water-cooled plate is made of a high thermal conductivity material (aluminum alloy). Its base material is aluminum alloy. After the flow channel is milled on the surface of the base material, the two aluminum alloy base plates are welded by stir friction. The internal design is a serpentine structure. The coolant flows through the internal channel of the water-cooled plate to take away the heat transferred from the heat spreader.

[0044] Water cooling system: The coolant is connected to the water cooling plate through pipes to form a closed circulation system. The system includes the coolant inlet, outlet and return system. After the coolant flows through multiple water cooling plates, it takes away the heat of the power module, and the hot liquid is brought into the heat dissipation device for cooling through the cooling pump, and then flows back to the water cooling plate through the pipe to continue circulation.

[0045] Design of plug-in connector under pressure: By using the plug-in connector under pressure, the coolant can be guaranteed not to leak during the plug-in and pull-out process, thus avoiding the problem of coolant leakage during the plug-in and pull-out operation in the traditional liquid cooling system. The specific design scheme is as follows:

[0046] Plug-in interface design: The water cooling system in the power supply box and the external water supply system are connected through a dedicated pressurized plug-in connector, which adopts a quick connection and disconnection mechanism. The pressurized plug-in connector adopts a sealed structure, which can automatically complete the seal during plugging and unplugging to avoid coolant leakage. During plugging and unplugging operations, a unique locking device ensures that the interface is always in a sealed state.

[0047] Pressurized plug-in connector: During the plug-in and pull-out process, the hydraulic device maintains appropriate pressure at the plug-in connection to prevent coolant leakage. The pressurized design during the plug-in and pull-out process ensures that the coolant flow is not affected, and the flow rate and temperature of the coolant can be effectively controlled.

[0048] Quick locking and releasing mechanism: In order to facilitate plugging and unplugging operations, the present invention is designed with a quick locking and releasing mechanism. When the power plug box and the pressurized plug connector are inserted, the pressurized plug connector is automatically locked to ensure the sealing of the socket; when it needs to be unplugged, by pressing the quick release button, the locking mechanism is released, and the power plug box and the coolant interface can be safely disconnected to avoid coolant leakage.

[0049] The redundant power supply design of the present invention is to ensure that when one power module fails, other power modules can automatically take over the power supply to avoid system downtime. The key points of the redundant power supply design are as follows:

[0050] Multiple redundant power supply modules: Each power supply box is equipped with multiple power supply modules (unit power supply is two-way redundant and channel power supply is four-way redundant power supply modules), each of which can provide power independently. When a power supply module fails, other power supply modules bear the load requirements to ensure uninterrupted operation of the system. Multiple power supplies can achieve redundant parallel power supply through the current balancing module.

[0051] Hot backup design: Redundant power modules use hot backup design, that is, multiple power modules are in parallel working state. The load between power modules is dynamically adjusted according to the working state to ensure that each power module is in the best working load state and avoid efficiency loss caused by module overload or underload.

[0052] Automatic switching function: When a power module fails, the system can automatically cut off the faulty power supply to ensure that other power supplies of the system are not affected. This is mainly achieved through a magnetic latching relay. In the default power-on state, the magnetic latching relay will remain in the off state. After the power-on power self-test passes, the power is closed. During operation, if the current output monitoring inside the power monitoring module finds that the current is reversed or the current does not meet the current sharing size, the electromagnetic relay of the channel will be cut off immediately. This process does not require manual intervention to ensure the continuity and stability of the power supply. Power module monitoring: Each power module is equipped with an independent monitoring system to monitor the working status, voltage, current, temperature and other parameters of the module in real time.

[0053] In order to monitor the operating status of each redundant power supply module in real time and realize fault warning and maintenance, the redundant power supply board information collection design is one of the key technologies of the present invention. The design scheme is as follows:

[0054] Monitoring sensors: Each redundant power module is equipped with multiple sensors to collect parameters such as current, voltage, power, temperature, etc. The sensor data is transmitted to the central control system in real time through the data acquisition unit.

[0055] Data communication and processing: The collected power module status data is transmitted to the system's central control board through standard communication protocols (CAN and 422 interfaces). The central control board is responsible for data processing and storage, judging whether the power module is working properly, discovering faults in time and triggering alarm mechanisms.

[0056] Fault diagnosis and alarm function: When a redundant power module fails or is abnormal, the central control system can automatically diagnose based on sensor data and sound an alarm through the alarm device. The system can also automatically switch to the backup power module according to the fault type to ensure a stable power supply.

[0057] Remote monitoring and management: The present invention can also be equipped with a remote monitoring module, which allows users to view the working status of the redundant power supply module in real time through a dedicated network connection, and perform remote diagnosis and maintenance. This is of great significance for improving system reliability and reducing maintenance costs.

[0058] Example 1

[0059] The embodiment of the present invention specifically provides a pressurized easy-plug multi-channel redundant power supply box using pure water cooling, including:

[0060] The upper water-cooling plate and the lower water-cooling plate are respectively located at the top and the bottom of the power plug box; the upper water-cooling plate and the lower water-cooling plate are provided with serpentine cooling channels inside; the water outlet of the upper water-cooling plate and the water inlet of the lower water-cooling plate are connected through a pipeline, and the water inlet of the upper water-cooling plate and the water outlet of the lower water-cooling plate are connected to the external water cooling system through a pressurized plug-in cold water connector to form a coolant circulation circuit;

[0061] A heat spreader is linearly arranged in the power plug box at intervals on the left and right sides, and the upper and lower ends of the heat spreader are in contact with the upper water cooling plate and the lower water cooling plate for heat conduction respectively; the heat spreader includes a heat conducting substrate and a U-shaped heat conducting pipe; two U-shaped heat conducting pipes are staggeredly embedded inside the heat conducting substrate to form a central symmetrical distribution structure; the outer surface of the heat conducting substrate is covered with a heat conducting adhesive layer;

[0062] A plurality of pluggable redundant boards are inserted and placed between each two adjacent heat spreaders and are in contact with the heat spreaders for heat conduction.

[0063] The plurality of pluggable redundant boards are composed of a plurality of power supply modules, which are two low-voltage low-power DC power supply unit power supply modules, four low-voltage high-power channel power supply modules and a power management module.

[0064] It also includes input circuit, internal PFC circuit, internal auxiliary power supply, power-on control module, multi-channel power supply control module, equipment peripheral power supply control module, display, keyboard power supply filter circuit, output filter sampling circuit and input and output redundant connectors;

[0065] The input circuit is connected to the internal PFC circuit and the internal auxiliary power supply, and the internal PFC circuit is connected to multiple power supply modules; the two low-voltage, low-power DC power supply unit power supply modules are connected to the device peripheral power supply control module, and the device peripheral power supply control module is connected to the display and keyboard power supply filter circuit through a magnetic latching relay; the four low-voltage, high-power channel power supply modules are connected to the multi-channel power supply control module, and the multi-channel power supply control module is connected to the corresponding four output filter sampling circuits through a magnetic latching relay; the output redundant low voltage of the display, keyboard power supply filter circuit and the output filter sampling circuit is connected to the input and output redundant connectors; the input and output redundant connectors also include input power supply for the input circuit ; The internal auxiliary power supply is connected to the power management module and the power-on control module, and the power-on control module is connected to the input and output redundant connectors; the power-on control module is connected to the multi-channel power supply control module and the device peripheral power supply control module through a fault cut-off control line, and the display and keyboard power supply filter circuit and the output end of the output filter sampling circuit are also connected to the power management module; the power management module is connected to the monitoring module on each redundant power module through RS422 and CAN communication protocols, and is used to collect the current, voltage, power, and temperature operating status data of each power module, and when the operating status data is abnormal, it is reported to the power-on control module through the serial port, and automatically switches to the standby power module according to the fault type.

[0066] The power module is a power circuit with redundant current sharing capability, specifically including: chip U2, capacitor C11, capacitor C17, capacitor C20, capacitor CY1, capacitor CY4, capacitor CY5, resistor R21 and resistor R41; the VIN+ end of the chip U2 is connected to a low-level power-on and high-level shutdown signal, the VIN- end of the chip U2 is connected to one end of capacitor C20 and capacitor CY5, the other end of the capacitor C20 is connected to the +ON / OFF end of the chip U2, and the other end of the capacitor CY5 is connected to the +ON / OFF end of the chip U2. Capacitor CY4, resistor R41, capacitor C17 and one end of capacitor C11, as well as the -S end of the chip U2 and the -VO end of the chip U2 are connected, and the other end of the capacitor CY4 is grounded. The TRIM end of the chip U2 is connected to the other end of the resistor R41 and one end of the resistor R21, and the other end of the resistor R21 is connected to capacitor C17 and the other end of capacitor C11, the +VO end of the chip U2, the S end of the chip U2 and one end of capacitor CY1, and the other end of the capacitor CY1 is grounded.

[0067] It also includes a fault cut-off redundant circuit for cutting off the magnetic holding relay, and the fault cut-off redundant circuit includes: a magnetic holding relay K1 and a chip U1; the OB end of the chip U1 is connected to pin 1 of the magnetic holding relay K1, the GND end of the chip U1 is grounded, the A end of the chip U1 is connected to port A, the B end of the chip U1 is connected to port B, the OA end of the chip U1 is connected to pin 2 of the magnetic holding relay K1, the VIN end of the chip U1 is connected to the power supply +5V, and the 3rd and 4th pins of the magnetic holding relay K1 are respectively connected to the VOUT_IN and VOUT_OUT ports.

[0068] The circuit of the monitoring module includes: a single chip computer circuit, a voltage monitoring circuit and a temperature monitoring circuit;

[0069] The voltage monitoring circuit includes: a chip U12, a resistor R01, a resistor R03, a resistor R06, a resistor R09, a capacitor C3 and a capacitor C5; pin 2 of the chip U12 is connected to a power supply of +3V, pin 1 of the chip U12 is grounded, pin 3 of the chip U12 is connected to capacitor C5, resistor R01, resistor R03 and one end of resistor R06, the other end of the resistor R01 is connected to a power supply of +27V, the other end of the resistor R03 is connected to a voltage signal to be monitored and one end of capacitor C3, the other ends of the resistor R06, capacitor C3, capacitor C5, and one end of resistor R09 are grounded, and the other end of the resistor R09 is grounded;

[0070] The temperature monitoring circuit includes: a chip U21 and a resistor R02; the VCC terminal of the chip U21 is connected to a power supply of +3V, the DQ terminal of the chip U21 is connected to a temperature signal to be monitored and one end of the resistor R02, the other end of the resistor R02 is connected to a power supply of +3V, and the GND terminal of the chip U21 is grounded.

[0071] The power management module also includes a configured central control board, and the central control board includes a state storage circuit, which specifically includes: chip U10, resistor R41 and resistor R42; E1, E2, E3 and VSS terminals of the chip U10 are grounded, the VCC terminal of the chip U10 is connected to the power supply +5V, the WC terminal of the chip U10 is grounded, the SCL terminal of the chip U10 is connected to one end of the resistor R41, the other end of the resistor R41 and one end of the resistor R42 are connected to the power supply +5V, and the other end of the resistor R42 is connected to the SDA terminal of the chip U10.

[0072] The circuit of the RS422 communication protocol specifically includes: chip U4, chip U5, resistor R1, resistor R2, resistor R3, resistor R4, resistor R7, resistor R8, resistor R9, resistor R10, capacitor C1, capacitor C2, TVS tube D1, TVS tube D2, TVS tube D3, TVS tube D4, TVS tube D5, TVS tube D6, fuse F1, fuse F2, fuse F3, fuse F4 and RS422 interface; the RO end of the chip U4 is connected to the RX differential signal, the RE end of the chip U4 is connected to one end of the resistor R1 and the DE end of the chip U4, the other end of the resistor R1 is grounded, and the V The CC end is connected to a power supply of 3V and one end of a capacitor C1, and the other end of the capacitor C1 is grounded. The B end of the chip U4 is connected to a resistor R7, a TVS tube D1, a TVS tube D2 and one end of a fuse F1, and the other ends of the resistor R7 and the TVS tube D1 are grounded. The other end of the fuse F1 is connected to one end of a resistor R3 and pin 1 of the RS422 interface. The A end of the chip U4 is connected to a resistor R8, a TVS tube D2, a TVS tube D3 and one end of a fuse F2. The other end of the resistor R8 is connected to a power supply of 3V, and the other end of the TVS tube D3 is grounded. The other end of the fuse F2 is connected to the other end of the resistor R3 and pin 2 of the RS422 interface.

[0073] The DI end of the chip U5 is connected to the TX differential signal, the RE end of the chip U5 is connected to one end of the resistor R2 and the DE end of the chip U5, the other end of the resistor R2 is connected to the power supply 3V, the VCC end of the chip U5 is connected to the power supply 3V and one end of the capacitor C2, the other end of the capacitor C2 is grounded, the B end of the chip U5 is connected to the resistor R9, the TVS tube D4, the TVS tube D5 and one end of the fuse F3, the other ends of the resistor R9 and the TVS tube D4 are grounded, the other end of the fuse F3 is connected to one end of the resistor R4 and the 3rd pin of the RS422 interface, the A end of the chip U5 is connected to the resistor R10, the TVS tube D5, the TVS tube D6 and one end of the fuse F4, the other end of the resistor R10 is connected to the power supply 3V, the other end of the TVS tube D6 is grounded, and the other end of the fuse F4 is connected to the other end of the resistor R4 and the 4th pin of the RS422 interface.

[0074] The circuit of the CAN communication protocol specifically includes: a chip U8 and a resistor R71; the TXD terminal of the chip U8 is connected to the TX differential signal, the VCC terminal of the chip U8 is connected to the power supply +5V, the RXD terminal of the chip U8 is connected to the RX differential signal, the STB terminal and the GND terminal of the chip U8 are grounded, the VIO terminal of the chip U8 is connected to the power supply +5V, the CANH terminal and the CANL terminal of the chip U8 are connected to the series resistor R71, and are respectively connected to the CAN2_H and CAN2_L signals.

[0075] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A pressurized, pluggable, multi-channel redundant power supply box adopting pure water cooling, characterized in that: include: The upper water-cooling plate and the lower water-cooling plate are respectively located at the top and the bottom of the power plug box; the upper water-cooling plate and the lower water-cooling plate are provided with serpentine cooling channels inside; the water outlet of the upper water-cooling plate and the water inlet of the lower water-cooling plate are connected through a pipeline, and the water inlet of the upper water-cooling plate and the water outlet of the lower water-cooling plate are connected to the external water cooling system through a pressurized plug-in cold water connector to form a coolant circulation circuit; A heat spreader is linearly arranged in the power plug box at intervals on the left and right sides, and the upper and lower ends of the heat spreader are in contact with the upper water cooling plate and the lower water cooling plate for heat conduction respectively; the heat spreader includes a heat conducting substrate and a U-shaped heat conducting pipe; two U-shaped heat conducting pipes are staggeredly embedded inside the heat conducting substrate to form a central symmetrical distribution structure; the outer surface of the heat conducting substrate is covered with a heat conducting adhesive layer; A plurality of pluggable redundant boards are inserted and placed between each two adjacent heat spreaders and are in contact with the heat spreaders for heat conduction.

2. The pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling as claimed in claim 1, characterized in that: The plurality of pluggable redundant boards are composed of a plurality of power supply modules, which are two low-voltage low-power DC power supply unit power supply modules, four low-voltage high-power channel power supply modules and a power management module.

3. The pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling as claimed in claim 2, characterized in that: It also includes input circuit, internal PFC circuit, internal auxiliary power supply, power-on control module, multi-channel power supply control module, equipment peripheral power supply control module, display, keyboard power supply filter circuit, output filter sampling circuit and input and output redundant connectors; The input circuit is connected to the internal PFC circuit and the internal auxiliary power supply, and the internal PFC circuit is connected to multiple power supply modules; the two low-voltage, low-power DC power supply unit power supply modules are connected to the device peripheral power supply control module, and the device peripheral power supply control module is connected to the display and keyboard power supply filter circuit through a magnetic latching relay; the four low-voltage, high-power channel power supply modules are connected to the multi-channel power supply control module, and the multi-channel power supply control module is connected to the corresponding four output filter sampling circuits through a magnetic latching relay; the output redundant low voltage of the display, keyboard power supply filter circuit and the output filter sampling circuit is connected to the input and output redundant connectors; the input and output redundant connectors also include input power supply for the input circuit ; The internal auxiliary power supply is connected to the power management module and the power-on control module, and the power-on control module is connected to the input and output redundant connectors; the power-on control module is connected to the multi-channel power supply control module and the device peripheral power supply control module through a fault cut-off control line, and the display and keyboard power supply filter circuit and the output end of the output filter sampling circuit are also connected to the power management module; the power management module is connected to the monitoring module on each redundant power module through RS422 and CAN communication protocols, and is used to collect the current, voltage, power, and temperature operating status data of each power module, and when the operating status data is abnormal, it is reported to the power-on control module through the serial port, and automatically switches to the standby power module according to the fault type.

4. The pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling as claimed in claim 3, characterized in that: The power module is a power circuit with redundant current sharing capability, specifically including: chip U2, capacitor C11, capacitor C17, capacitor C20, capacitor CY1, capacitor CY4, capacitor CY5, resistor R21 and resistor R41; the VIN+ end of the chip U2 is connected to a low-level power-on and high-level shutdown signal, the VIN- end of the chip U2 is connected to one end of capacitor C20 and capacitor CY5, the other end of the capacitor C20 is connected to the +ON / OFF end of the chip U2, and the other end of the capacitor CY5 is connected to the +ON / OFF end of the chip U2. Capacitor CY4, resistor R41, capacitor C17 and one end of capacitor C11, as well as the -S end of the chip U2 and the -VO end of the chip U2 are connected, and the other end of the capacitor CY4 is grounded. The TRIM end of the chip U2 is connected to the other end of the resistor R41 and one end of the resistor R21, and the other end of the resistor R21 is connected to capacitor C17 and the other end of capacitor C11, the +VO end of the chip U2, the S end of the chip U2 and one end of capacitor CY1, and the other end of the capacitor CY1 is grounded.

5. The pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling and heat dissipation as claimed in claim 3, characterized in that: It also includes a fault cut-off redundant circuit for cutting off the magnetic holding relay, and the fault cut-off redundant circuit includes: a magnetic holding relay K1 and a chip U1; the OB end of the chip U1 is connected to pin 1 of the magnetic holding relay K1, the GND end of the chip U1 is grounded, the A end of the chip U1 is connected to port A, the B end of the chip U1 is connected to port B, the OA end of the chip U1 is connected to pin 2 of the magnetic holding relay K1, the VIN end of the chip U1 is connected to the power supply +5V, and the 3rd and 4th pins of the magnetic holding relay K1 are respectively connected to the VOUT_IN and VOUT_OUT ports.

6. The pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling as claimed in claim 3, characterized in that: The circuit of the monitoring module includes: a single chip computer circuit, a voltage monitoring circuit and a temperature monitoring circuit; The voltage monitoring circuit includes: a chip U12, a resistor R01, a resistor R03, a resistor R06, a resistor R09, a capacitor C3 and a capacitor C5; pin 2 of the chip U12 is connected to a power supply of +3V, pin 1 of the chip U12 is grounded, pin 3 of the chip U12 is connected to capacitor C5, resistor R01, resistor R03 and one end of resistor R06, the other end of the resistor R01 is connected to a power supply of +27V, the other end of the resistor R03 is connected to a voltage signal to be monitored and one end of capacitor C3, the other ends of the resistor R06, capacitor C3, capacitor C5, and one end of resistor R09 are grounded, and the other end of the resistor R09 is grounded; The temperature monitoring circuit includes: a chip U21 and a resistor R02; the VCC terminal of the chip U21 is connected to a power supply of +3V, the DQ terminal of the chip U21 is connected to a temperature signal to be monitored and one end of the resistor R02, the other end of the resistor R02 is connected to a power supply of +3V, and the GND terminal of the chip U21 is grounded.

7. The pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling and heat dissipation as claimed in claim 3, characterized in that: The power management module also includes a configured central control board, and the central control board includes a state storage circuit, which specifically includes: chip U10, resistor R41 and resistor R42; E1, E2, E3 and VSS terminals of the chip U10 are grounded, the VCC terminal of the chip U10 is connected to the power supply +5V, the WC terminal of the chip U10 is grounded, the SCL terminal of the chip U10 is connected to one end of the resistor R41, the other end of the resistor R41 and one end of the resistor R42 are connected to the power supply +5V, and the other end of the resistor R42 is connected to the SDA terminal of the chip U10.

8. The pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling as claimed in claim 3, characterized in that: The circuit of the RS422 communication protocol specifically includes: chip U4, chip U5, resistor R1, resistor R2, resistor R3, resistor R4, resistor R7, resistor R8, resistor R9, resistor R10, capacitor C1, capacitor C2, TVS tube D1, TVS tube D2, TVS tube D3, TVS tube D4, TVS tube D5, TVS tube D6, fuse F1, fuse F2, fuse F3, fuse F4 and RS422 interface; the RO end of the chip U4 is connected to the RX differential signal, the RE end of the chip U4 is connected to one end of the resistor R1 and the DE end of the chip U4, the other end of the resistor R1 is grounded, and the V The CC end is connected to a power supply of 3V and one end of a capacitor C1, and the other end of the capacitor C1 is grounded. The B end of the chip U4 is connected to a resistor R7, a TVS tube D1, a TVS tube D2 and one end of a fuse F1, and the other ends of the resistor R7 and the TVS tube D1 are grounded. The other end of the fuse F1 is connected to one end of a resistor R3 and pin 1 of the RS422 interface. The A end of the chip U4 is connected to a resistor R8, a TVS tube D2, a TVS tube D3 and one end of a fuse F2. The other end of the resistor R8 is connected to a power supply of 3V, and the other end of the TVS tube D3 is grounded. The other end of the fuse F2 is connected to the other end of the resistor R3 and pin 2 of the RS422 interface. The DI end of the chip U5 is connected to the TX differential signal, the RE end of the chip U5 is connected to one end of the resistor R2 and the DE end of the chip U5, the other end of the resistor R2 is connected to the power supply 3V, the VCC end of the chip U5 is connected to the power supply 3V and one end of the capacitor C2, the other end of the capacitor C2 is grounded, the B end of the chip U5 is connected to the resistor R9, the TVS tube D4, the TVS tube D5 and one end of the fuse F3, the other ends of the resistor R9 and the TVS tube D4 are grounded, the other end of the fuse F3 is connected to one end of the resistor R4 and the 3rd pin of the RS422 interface, the A end of the chip U5 is connected to the resistor R10, the TVS tube D5, the TVS tube D6 and one end of the fuse F4, the other end of the resistor R10 is connected to the power supply 3V, the other end of the TVS tube D6 is grounded, and the other end of the fuse F4 is connected to the other end of the resistor R4 and the 4th pin of the RS422 interface.

9. The pressurized easy-plug multi-channel redundant power supply box adopting pure water cooling as claimed in claim 3, characterized in that: The circuit of the CAN communication protocol specifically includes: a chip U8 and a resistor R71; the TXD terminal of the chip U8 is connected to the TX differential signal, the VCC terminal of the chip U8 is connected to the power supply +5V, the RXD terminal of the chip U8 is connected to the RX differential signal, the STB terminal and the GND terminal of the chip U8 are grounded, the VIO terminal of the chip U8 is connected to the power supply +5V, the CANH terminal and the CANL terminal of the chip U8 are connected to the series resistor R71, and are respectively connected to the CAN2_H and CAN2_L signals.

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