CN102005751A - Safe high-efficiency high-voltage power supply method for server - Google Patents

Abstract

The present invention provides a safe and effective high-voltage power supply method for a server. A high-voltage direct current lightning protection module SPD is provided at the front of the power supply module in the server cabinet system. The high-voltage direct current lightning protection module SPD is integrated with a thermal circuit breaker module K1, a remote Signal alarm switch module SK, overcurrent protection module K2, varistor MOV, anti-surge switch module K3 are also provided with green safety indicator marks and red fault indicator marks; the high-voltage DC lightning protection module is integrated in the server cabinet system. The module mainly plays the role of lightning protection and surge protection. The main features of the module design are as follows: modular design; use temperature control circuit breaker technology to avoid fire; remote alarm device, convenient for remote monitoring; work and fault indication; easy installation and simple maintenance.

Description

A method for safe and effective high-voltage power supply of server

technical field

The invention relates to the field of server system power supply, in particular to a method for effectively solving the safety problem of server high-voltage power supply.

Background technique

With the continuous development of the information society, data centers are distributed in many places around the world as information-carrying entities. In some places, the climate is pleasant, while in some places it is humid and rainy, and in some places there are many thunderstorms. As the individual server in the data center computer room, it can ensure the uninterrupted, continuous and stable operation of the machine in areas with many lightning strikes. Therefore, this paper proposes a method to effectively solve the security problem of server high-voltage power supply.

Contents of the invention

The purpose of the present invention is to provide a safe and effective high-voltage power supply method for a server.

The object of the present invention is achieved in the following manner. A high-voltage direct current lightning protection module SPD is arranged at the front of the power supply module in the server cabinet system, and a thermal circuit breaker module K1 and a remote signaling alarm switch are integrated in the high-voltage direct current lightning protection module SPD. Module SK, overcurrent protection module K2, varistor MOV, anti-surge switch module K3, are also provided with green safety indicator and red fault indicator;

The specific design of the module is as follows: the high-voltage DC lightning protection module SPD is connected between the line L/N and the earth. Under the normal working voltage, the varistor MOV is in a high-impedance state, which is equivalent to the open circuit of the line L/N to the ground, which does not affect The line is working normally, and the fault display window is green; when the line L/N has an instantaneous pulse overvoltage due to lightning or switching operation, the high-voltage DC lightning protection module SPD is quickly turned on in nanoseconds, and the overvoltage is short-circuited to the earth to discharge When the pulse overvoltage disappears, the lightning protection module will automatically return to the high-resistance state, which will not affect the user's power supply. The thermal circuit breaker K1 in the DC lightning protection module SPD will automatically disconnect the circuit of the lightning protection module to protect the power circuit from being affected and prevent fires; when the line induces excessive lightning current, the overcurrent circuit breaker K2 will quickly disconnect, Prevent the high-voltage DC lightning protection module SPD from exploding; after the thermal circuit breaker K1 or the overcurrent circuit breaker K2 operates, the tripping device in the high-voltage DC lightning protection module SPD operates, making the fault display window display red, reminding the user to replace the high-voltage DC lightning protection module SPD, at the same time, the tripping device drives the remote signaling alarm module SK to act, and outputs a fault alarm signal; the anti-surge module K3 can conduct and shunt the current in a very short time, thereby avoiding the damage of the surge to other equipment in the circuit to protect The server rack system equipment is protected from damage.

Description of drawings

Fig. 1 is a schematic structural diagram of a server;

Figure 2 is a schematic diagram of the circuit structure of the high-voltage direct current lightning protection module SPD;

Detailed ways

The method of the present invention is described in detail below with reference to the accompanying drawings.

The AC input terminal of the power module of the traditional server rack system generally directly uses the AC mains as the power supply input. This method is to set a high-voltage DC lightning protection module SPD integrating multiple modules at the front of the power supply module of the server cabinet system. surge module. In order to ensure the safety of the high-voltage power supply of the server cabinet system, and to ensure that the system can work continuously and stably without interruption.

Modules with anti-high voltage, short-circuit protection and over-current protection functions: First, integrate a general anti-high voltage module on the server cabinet system, and then integrate a shunt anti-high voltage module at each server end. The anti-high voltage module mentioned in the present invention is recommended to be a circuit breaker. Because the circuit breaker has the functions described in this manual. Under normal circumstances, the high-voltage DC circuit breaker is used to close or disconnect the circuit. When a fault occurs, it can automatically disconnect the faulty equipment or line under the control of the relay protection device. When a circuit breaker disconnects a live circuit, its internal contacts will generate an arc at the moment of separation, and the higher the voltage or the greater the current, the stronger the arc. Due to the arc extinguishing mechanism inside the circuit breaker, the circuit breaker can extinguish the arc in a very short time (such as a few hundredths of a second), so that the contacts of the circuit breaker can be safely separated. The advantage of using a circuit breaker is that it has an over-current and short-circuit automatic tripping function, and has a degaussing and arc-extinguishing device, which can be used to switch on and off large currents;

The specific description of the module with anti-high voltage, short-circuit protection and over-current protection functions is as follows: connect a high-voltage DC circuit breaker (total) at the power supply end, connect the circuit breaker of each branch through the general circuit breaker, and each branch The output of the circuit breaker is used as the input of the DC power supply of the server, and the branch circuit breaker can also be integrated into the server as an independent module.

Lightning protection module: A high-voltage DC lightning protection module is integrated in the server cabinet system, which mainly plays the role of lightning protection and surge protection. The main features of the module design are as follows: modular design; use temperature control circuit breaker technology to avoid fire; remote alarm device, convenient for remote monitoring; work and fault indication; easy installation and simple maintenance;

The working principle of the module: the high-voltage DC lightning protection module SPD is connected between the line L/N and the earth. Under the normal working voltage, the varistor MOV is in a high-impedance state, which is equivalent to the open circuit of the line to the ground, which does not affect the normal operation of the line. Work. The fault display window is green, as shown in Figure 1. When the line has an instantaneous pulse overvoltage due to lightning or switch operation, the lightning protection module will be turned on quickly in nanoseconds, and the overvoltage will be short-circuited to the ground for discharge. When the pulse overvoltage disappears, the lightning protection module will automatically recover. The high-impedance state does not affect the user's power supply. When the lightning protection module works under overload for a long time, its performance deteriorates and heats up to a certain temperature. The thermal circuit breaker K1 in the module will automatically disconnect the circuit of the lightning protection module to protect the power circuit from being affected and prevent fires. When the line induces an excessive lightning current, the overcurrent breaking module K2 is disconnected quickly to prevent the high voltage DC lightning protection module SPD from exploding. After K1 or K2 is activated, the tripping device in the SPD of the high-voltage DC lightning protection module operates, and the fault display window displays red, reminding the user to replace the high-voltage DC lightning protection module SPD. warning signal.

Anti-surge module: Surge is also called surge, as the name implies, it is an instantaneous overvoltage exceeding the normal working voltage. Essentially, a surge is a violent pulse that occurs in mere millionths of a second. Possible causes of surges are: short circuits, power switching, or large motors. Adding a module with a surge blocking device can effectively absorb the sudden huge energy, and the surge module can turn on the shunt in a very short time, thereby avoiding damage to other equipment in the circuit by the surge. To protect the server rack system equipment from damage.

Except for the technical features described in the instructions, all are known technologies by those skilled in the art.

Claims (1)

1. the method for designing of the effective high voltage supply of server security, it is characterized in that the front portion of power module is provided with high voltage direct current lightning-protection module SPD in server cabinet system, be integrated with hotness turn-off module K1, remote signalling alarm switch module SK among this high voltage direct current lightning-protection module SPD, overcurrent protection module K2, piezo-resistance MOV, anti-surge switch module K3 also is provided with green safety cue mark and red-fault cue mark;

The module specific design is as follows: high voltage direct current lightning-protection module SPD is connected between circuit L/N and the earth, under the normal working voltage situation, piezo-resistance MOV is in high-impedance state, is equivalent to circuit L/N and opens a way over the ground, do not influence the circuit operate as normal, it is green that the fault display window is; As circuit L/N because thunder and lightning or switching manipulation when the transient pulse overvoltage occurring, high voltage direct current lightning-protection module SPD is in nanosecond conducting rapidly in the time, overvoltage is shorted to the earth releases, after this pulse surge disappears, lightning-protection module recovers high-impedance state again automatically, do not influence user's power supply, when high voltage direct current lightning-protection module SPD long-term work in hard service, its performance degradation and generating heat to uniform temperature, hotness turn-off module K1 meeting automatic disconnection thunder-arresting module loop among the high voltage direct current lightning-protection module SPD, the work of protection power circuit is unaffected, prevents that fire from taking place; When line influence was crossed large lightning current, overcurrent vreaker K2 disconnected rapidly, prevented high voltage direct current lightning-protection module SPD blast; After hotness turn-off module K1 or the overcurrent turn-off module K2 action, trip gear action in the high voltage direct current lightning-protection module SPD, it is red that the fault display window is shown, reminding user to replace high voltage direct current lightning-protection module SPD, simultaneously, trip gear drives remote signalling alarm module SK action, output fault alarm signal; Anti-surge module K3 can shunt in the extremely short time in conducting, thereby avoids the infringement of surge to other equipment in the loop, avoids impaired with protection server cabinet system equipment.

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