Combined power supply for fire-fighting system

A combined power supply and fire protection system technology, applied in the direction of a single AC network with different frequencies, can solve the problems of unreliability of the equipment system, increase of fault points, complex system, etc., to reduce the number of power supplies, improve equipment reliability, and ensure The effect of normal operation

Inactive Publication Date: 2018-11-23
李超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, a low-voltage DC power supply is required to supply power to fire-fighting electronic equipment such as fire detection and alarm systems and fire-fighting linkage control systems. increase, the equipment system has natural unreliability

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  • Combined power supply for fire-fighting system

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Embodiment Construction

[0018] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0019] The technical idea of ​​the present invention is to optimize the existing power conversion system scheme, adopt an integrated design for the two conversion technologies of AC and DC, and DC and DC, and integrate the output and input to meet the requirements of AC and DC, DC and DC. The power supply voltage level of DC and DC not only meets the function of AC-DC rectification and charging, but also meets the function of DC-DC conversion and voltage stabilization, which promotes the reduction of volume and space of the equipment system and reduces the point of failure.

[0020] Specifically, such as figure 1 As shown, the combined power supply of the fire protection system provided by the embodiment of the invention includes an AC-AC conversion modu...

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Abstract

The invention provides a combined power supply for a fire-fighting system. The combined power supply comprises an AC-AC conversion module, an AC-DC conversion module and a plurality of DC-DC voltage conversion modules, wherein the AC-AC conversion module is used for converting input AC of 380V into AC of 220V; the AC-DC conversion module is used for converting the AC of 220V into DC of 24V; and the plurality of DC-DC voltage conversion modules are used for converting the DC of 24V into required DC separately. Integrated combination is carried out on output and input, so that the combined powersupply for fire-fighting system provided by the invention meets the supply voltage levels for the AC to the DC and the DC to the DC, conforms to AC-DC rectifying and charging functions and also meetsa DC-DC conversion regulation function, an equipment system is promoted, the volume space is reduced and fault points are reduced.

Description

technical field [0001] The invention relates to a combined power supply, in particular to a combined power supply for a fire fighting system. Background technique [0002] At present, various public facilities and large-scale complexes require a variety of power supply equipment according to different power loads. For fire-fighting equipment, different voltage levels are required for power supply. The commonly used power supply is 380V or 220V, and the three-phase 380V voltage is used for power equipment such as elevators and water pumps. Power supply; single-phase 220V voltage is used for electrical work lighting, emergency lighting and other electrical equipment. In addition, a low-voltage DC power supply is required to supply power to fire-fighting electronic equipment such as fire detection and alarm systems and fire-fighting linkage control systems. increase, the equipment system has natural unreliability. [0003] Therefore, there is an urgent need to provide a power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/02
CPCH02J3/02
Inventor 李超苏煜杨凤雷乔旭宋利程超李淼
Owner 李超
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