Reinforced switch device for centralized control of equipment power supply in cabinet

Abstract

The utility model discloses a reinforced switch device for centralized control of equipment power supplies in a cabinet, belongs to the technical field of servers, and aims to solve the technical problem of how to provide the reinforced switch device for centralized control of the equipment power supplies in the cabinet. Comprising a case, and a harmonic suppressor, a switch control and distribution unit, an AC-DC conversion module, an FRU storage module and an audible and visual alarm module which are configured in the case, the on-off control and distribution unit is used for carrying out on-off control on an input AC220V power supply by pressing a self-locking switch; the AC-DC conversion module is used for isolating and converting an input AC 220V power supply into DC 24V; the harmonic suppressor is used for carrying out harmonic suppression on an input AC220V power supply; the FRU storage module is used for storing cabinet FRU information; the audible and visual alarm module is electrically connected with the management unit CPU, and the management unit CPU drives the audible and visual alarm module.

Description

Technical Field

[0001] The utility model relates to the technical field of servers, in particular to a reinforced switch device for centralized control of power supplies of equipment in a cabinet. Background Art

[0002] In line with the development needs of informatization, various modern equipment is required. For centralized management, various equipment are often installed in cabinets. If various equipment are powered separately, many shipboard power supply interfaces are required, and many power lines are entangled together, which will not only generate eddy currents, but also their heat energy cannot be properly dissipated, posing serious safety hazards. At the same time, the environment that the equipment is subjected to is complex and changeable, such as humidity, salt spray, mold, shock, vibration, etc., which places extremely high requirements on the reliability of the equipment.

[0003] How to provide a reinforced switch device for centralized power control of equipment in the cabinet is a technical problem that needs to be solved. Utility Model Content

[0004] The technical task of the utility model is to address the above shortcomings and provide a reinforced switch device for centralized power control of equipment in a cabinet, so as to solve the technical problem of how to provide a reinforced switch device for centralized power control of equipment in a cabinet.

[0005] The utility model discloses a reinforced switch device for centralized power control of equipment in a cabinet, comprising a chassis and a harmonic suppressor, a switch control and distribution unit, an AC-DC conversion module, a FRU storage module and an audible and visual alarm module arranged in the chassis;

[0006] The switch control and distribution unit is provided with a push-button self-locking switch, and the input AC220V power supply is controlled by pressing the self-locking switch;

[0007] The AC-DC conversion module is electrically connected to the self-locking switch in the switch control unit, and is used to isolate and convert the input AC220V power supply into DC24V;

[0008] The harmonic suppressor is electrically connected to the push-button self-locking switch in the switch control and distribution unit, and is used to suppress harmonics of the input AC220V power supply;

[0009] The FRU storage module is used to store the cabinet FRU information. The FRU storage module, MCU, level conversion unit and management unit BMC are electrically connected in sequence. The FRU information reading operation is performed by the MCU, and the FRU information is converted into an RS232 signal by the level conversion unit and sent to the management unit BMC;

[0010] The sound and light alarm module is electrically connected to the management unit CPU, and the management unit CPU drives the sound and light alarm module.

[0011] Preferably, the switch control and distribution unit comprises a push-to-lock switch, a terminal block and an electrical connector socket, wherein the push-to-lock switch comprises an input push-to-lock switch and a plurality of output push-to-lock switches;

[0012] The input push-button self-locking switch is set on the front panel of the chassis. The input AC220V power supply is connected to the harmonic suppressor through the electrical connector socket, and then connected to the input push-button self-locking switch through the harmonic suppressor. The input push-button self-locking switch serves as the master control switch to realize power on and off of the power supply of the equipment in the cabinet;

[0013] Each output push-locking switch is arranged on the rear panel of the chassis and is electrically connected to the input push-locking switch. Each output push-locking switch is electrically connected to an electrical connector socket configured on the rear panel of the chassis, and is used to supply power to each device in the chassis. A terminal block configured in the chassis is electrically connected between each output push-locking switch and the electrical connector socket.

[0014] Preferably, the terminal block is a wire spring hole type terminal block.

[0015] Preferably, the harmonic suppressor is a passive harmonic suppressor composed of an LC parallel resonant circuit and an LC series resonant circuit.

[0016] Preferably, the AC-DC conversion module consists of a rectifier bridge circuit, a PFC circuit, a DC-DC conversion circuit and a protection circuit, and the rectifier bridge circuit is a full-bridge full-wave rectifier circuit.

[0017] Preferably, the management unit CPU drives the sound and light alarm module through the GPIO and the switch quantity, and the sound and light alarm module includes an indicator light, a buzzer and a mute button.

[0018] Preferably, the chassis is a fully enclosed chassis made of aluminum alloy and formed by an anodizing process.

[0019] The utility model provides a reinforced switch device for centralized power control of equipment in a cabinet, which has the following advantages:

[0020] 1. Provide centralized control for the power supply of equipment in the cabinet, provide highly reliable and safe power supply distribution for various equipment, have harmonic suppression function, and provide cabinet FRU information storage and sound and light alarm function;

[0021] 2. It has the ability of vibration resistance, wear resistance, corrosion resistance and fatigue resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of a reinforced switch device for centralized power control of equipment in a cabinet according to an embodiment of the present invention;

[0025] Figure 2 The present invention is a circuit structure block diagram of a switch control and distribution unit in a reinforced switch device for centralized power control of equipment in a cabinet according to an embodiment of the present invention;

[0026] Figure 3 A circuit diagram of a harmonic suppressor in a reinforced switch device for centralized power control of equipment in a cabinet according to an embodiment of the present invention;

[0027] Figure 4 This is a block diagram of implementing low voltage 5V and 3.3V power conversion through an AC-DC conversion module in a reinforced switch device for centralized power control of equipment in a cabinet according to an embodiment of the present invention;

[0028] Figure 5 This is an architecture diagram of an out-of-band management system for a switch unit in a reinforced switch device for centralized power control of equipment in a cabinet in an embodiment. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments may be combined with each other.

[0030] The embodiment of the utility model provides a reinforced switch device for centralized power control of equipment in a cabinet, which is used to solve the technical problem of how to provide a reinforced switch device for centralized power control of equipment in a cabinet.

[0031] Embodiment 1:

[0032] The utility model discloses a reinforced switch device for centralized power control of equipment in a cabinet, such as Figure 1 As shown, it includes a chassis and a harmonic suppressor, a switch control and distribution unit, an AC-DC conversion module, a FRU storage module and an audible and visual alarm module configured in the chassis.

[0033] The switch control and distribution unit is equipped with a push-button self-locking switch, and the input AC220V power supply is controlled by pressing the self-locking switch.

[0034] In this embodiment, the switch control and distribution unit includes a push-button self-locking switch, a terminal block and an electrical connector socket. The push-button self-locking switch includes an input push-button self-locking switch and multiple output push-button self-locking switches; the input push-button self-locking switch is arranged on the front panel of the chassis, and the input AC220V power supply is connected to the harmonic suppressor through the electrical connector socket, and is connected to the input push-button self-locking switch through the harmonic suppressor. The input push-button self-locking switch serves as a master control switch to realize power-on and power-off of the power supply of the equipment in the cabinet; each output push-button self-locking switch is arranged on the rear panel of the chassis and is electrically connected to the input push-button self-locking switch. Each output push-button self-locking switch is electrically connected to the electrical connector socket configured on the rear panel of the chassis, and is used to supply power to each device in the chassis, and a terminal block configured in the chassis is electrically connected between each output push-button self-locking switch and the electrical connector socket.

[0035] The AC-DC conversion module is electrically connected to the self-locking switch in the switch control unit, and is used to isolate and convert the input AC220V power supply into DC24V.

[0036] In this embodiment, the AC-DC conversion module is composed of a rectifier bridge circuit, a PFC circuit, a DC-DC conversion circuit and a protection circuit, and the rectifier bridge circuit is a full-bridge full-wave rectifier circuit.

[0037] As a specific implementation of switch control and distribution, the switch unit's switch control function for the input AC220V is achieved by pressing a self-locking switch. The front panel of the switch unit is designed with 1 input push-button self-locking switch and 10 output push-button self-locking switches. The input switch is the master control switch that controls the power on and off of the entire cabinet system, and the output switch is the sub-control switch for various types of equipment. The input AC220V is connected to the input push-button self-locking switch after being input through the rear panel input aviation plug. The 10 AC220V outputs are independently controlled by 10 output push-button self-locking switches and are connected to the rear panel aviation plug outputs to power each unit.

[0038] The AC220V power distributor inside the switch unit is realized through the terminal block, which can not only straighten the internal wiring and avoid the interlacing and mutual interference of multiple power lines, but also balance the heat dissipation of the connection points to ensure a safe distance between lines. The terminal block adopts the military wire spring hole technology design to ensure that the power line connection is firm and reliable, and the terminal block is designed with a dust cover to prevent the connection performance from being reduced due to dust accumulation at the terminal.

[0039] In order to meet different voltage requirements, a power adapter board is designed inside the switch unit. The core component is a standard AC-DC power module, which converts AC220V into DC24V with isolation. The output power is more than 80W, which can meet the DC24V direct current power supply requirements. Circuit system block diagram Figure 2 shown.

[0040] The harmonic suppressor is electrically connected to the push-button self-locking switch in the switch control and distribution unit, and is used to suppress harmonics of the input AC220V power supply.

[0041] The harmonic suppressor in this embodiment is a passive harmonic suppressor composed of an LC parallel resonant circuit and an LC series resonant circuit. Figure 3 As shown, L1 and C1 form a parallel resonant circuit, and L2, C2 and L3, C3 form a series resonant circuit. At the LC resonant frequency, the series resonance has the minimum impedance, so that the harmonic interference current of the corresponding frequency point flows back to the interference source, and the parallel resonance has the maximum impedance, which can prevent the interference current of the frequency point from flowing out of the harmonic suppressor, thereby effectively absorbing the harmonic current, improving the system power supply voltage waveform, and meeting the GJB151B electromagnetic compatibility HJ ten test requirements.

[0042] The FRU storage module is used to store the cabinet FRU information. The FRU storage module, MCU, level conversion unit and management unit BMC are electrically connected in sequence. The FRU information reading operation is performed through the MCU, and the FRU information is converted into RS232 signals through the level conversion unit and sent to the management unit BMC.

[0043] The sound and light alarm module is electrically connected to the management unit CPU, and the management unit CPU drives the sound and light alarm module.

[0044] In this embodiment, management functions such as sound and light alarms are implemented based on MCU, and communicate with the management unit to realize out-of-band management and control of the entire cabinet. It mainly includes two aspects: 1) Sound and light alarm function. When the management unit CPU detects an abnormal situation, the GPIO drives the indicator light and buzzer through switch isolation to issue an alarm indication. The mute button is used to eliminate the indicator light and buzzer alarm; 2) FRU access function. The cabinet FRU information is accessed by non-volatile storage media, and the read operation is performed through the MCU, and the level is converted into RS232 signals to communicate with the management unit BMC.

[0045] In this embodiment, the chassis is of fully enclosed design, and its main material is aluminum alloy. It adopts anodizing process, and the hard anodized film can reach 25 to 150 microns. The anodized aluminum alloy has improved its hardness and wear resistance, which can reach 250 to 500 kg / square millimeter. It has good heat resistance. The melting point of the hard anodized film is as high as 2320K, and it has excellent insulation and a breakdown voltage of up to 2000V, which enhances the corrosion resistance. It will not corrode after thousands of hours in ω=0.03NaCl salt spray.

[0046] The reinforced switch device of this embodiment has a fully enclosed chassis design, and the main material is aluminum alloy. It adopts anodizing process, and the surface hardness, wear resistance, milk corrosion resistance, etc. after treatment are better, and it can adapt to harsh working conditions such as humidity, heat, salt spray, and mold. Through the power switch control and branching module, 1 input AC220V power is distributed into 10 AC220V outputs to power various JZ information equipment and provide independent switch control functions. The power switch control is realized by pressing the self-locking switch, and the wiring terminal block is used to realize the branching, connected to the rear panel power plug, as the power supply interface of various equipment. The AC220V power input end is connected in series with a harmonic suppressor to filter out the power supply harmonic current caused by nonlinear loads and single-phase rectification. The AC220V power input is converted into a DC24V output through the AC-DC module, connected to the rear panel power plug, and provides DC power supply. And the DC24V is converted into 3.3V voltage and isolated 12V voltage to power the cabinet FRU access circuit and the sound and light alarm circuit switch quantity.

[0047] The present invention has been shown and described in detail above through the accompanying drawings and preferred embodiments. However, the present invention is not limited to these disclosed embodiments. Based on the above multiple embodiments, those skilled in the art can know that the means in the above different embodiments can be combined to obtain more embodiments of the present invention, and these embodiments are also within the protection scope of the present invention.

Claims

1. A reinforced switch device for centralized power control of equipment in a cabinet, characterized in that: It includes a chassis and a harmonic suppressor, a switch control and distribution unit, an AC-DC conversion module, a FRU storage module and an audible and visual alarm module arranged in the chassis; The switch control and distribution unit is provided with a push-button self-locking switch, and the input AC220V power supply is controlled by pressing the self-locking switch; The AC-DC conversion module is electrically connected to the self-locking switch in the switch control unit, and is used to isolate and convert the input AC220V power supply into DC24V; The harmonic suppressor is electrically connected to the push-button self-locking switch in the switch control and distribution unit, and is used to suppress harmonics of the input AC220V power supply; The FRU storage module is used to store the cabinet FRU information. The FRU storage module, MCU, level conversion unit and management unit BMC are electrically connected in sequence. The FRU information reading operation is performed by the MCU, and the FRU information is converted into an RS232 signal by the level conversion unit and sent to the management unit BMC; The sound and light alarm module is electrically connected to the management unit CPU, and the management unit CPU drives the sound and light alarm module.

2. The reinforced switch device for centralized power control of equipment in a cabinet according to claim 1, characterized in that: The switch control and distribution unit includes a push-to-lock switch, a terminal block, and an electrical connector socket, wherein the push-to-lock switch includes an input push-to-lock switch and a plurality of output push-to-lock switches; The input push-button self-locking switch is set on the front panel of the chassis. The input AC220V power supply is connected to the harmonic suppressor through the electrical connector socket, and then connected to the input push-button self-locking switch through the harmonic suppressor. The input push-button self-locking switch serves as the master control switch to realize power on and off of the power supply of the equipment in the cabinet; Each output push-locking switch is arranged on the rear panel of the chassis and is electrically connected to the input push-locking switch. Each output push-locking switch is electrically connected to an electrical connector socket configured on the rear panel of the chassis, and is used to supply power to each device in the chassis. A terminal block configured in the chassis is electrically connected between each output push-locking switch and the electrical connector socket.

3. The reinforced switch device for centralized power control of equipment in a cabinet according to claim 2, characterized in that: The terminal block is a wire spring hole type terminal block.

4. The reinforced switch device for centralized power control of equipment in a cabinet according to claim 1, characterized in that: The harmonic suppressor is a passive harmonic suppressor composed of an LC parallel resonant circuit and an LC series resonant circuit.

5. The reinforced switch device for centralized power control of equipment in a cabinet according to claim 1, characterized in that: The AC-DC conversion module is composed of a rectifier bridge circuit, a PFC circuit, a DC-DC conversion circuit and a protection circuit, and the rectifier bridge circuit is a full-bridge full-wave rectifier circuit.

6. The reinforced switch device for centralized power control of equipment in a cabinet according to claim 1, characterized in that: The management unit CPU drives the sound and light alarm module through the GPIO and the switch quantity. The sound and light alarm module includes an indicator light, a buzzer and a mute key.

7. The reinforced switch device for centralized power control of equipment in a cabinet according to claim 1, characterized in that: The chassis is a fully enclosed chassis made of aluminum alloy using anodizing technology.

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