Novel elevator power supply control device

A technology for elevator control and power supply device, which is applied in the direction of energy efficiency, transportation and packaging, sustainable construction, etc. With voltage stabilization function and other issues, to achieve the effect of reducing assembly wiring, reducing weight, and high integration

Inactive Publication Date: 2014-01-01
TIANJIN HAOYA SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The disadvantage of the above-mentioned prior art is that the elevator control power supply circuit and the phase failure protection circuit are set separately, resulting in relatively many assembly and wiring of the elev

Method used

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  • Novel elevator power supply control device

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Embodiment Construction

[0017] exist figure 1 Among them, the input of the switching power supply circuit is a three-phase AC power supply to adapt to the power supply method of the elevator. Compared with the common single-phase power input scheme, the three-phase input is easier to balance the load of each phase power supply. The output of the switching power supply circuit is a multi-channel DC power supply, which can supply power to elevator control circuits of different voltages.

[0018] The safety technical specification for special equipment stipulates: "The elevator should have the protection function of the power supply system for phase failure and phase error. When the elevator power supply circuit has a phase failure or phase error, the elevator should stop running and keep the stopped state"; , it is not necessary to set up the wrong phase protection function". According to this requirement, the frequency conversion drive elevator can only have the phase failure protection function.

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Abstract

The invention discloses a novel elevator power supply control device which is a switching-power-supply type elevator control power supply with a phase failure monitoring function. An isolation-type switching power supply adopting three-phase alternating-current power input takes the place of a power-frequency transformer type control power supply, a photoelectric coupler is adopted to monitor power supply phase failure, and the elevator control power supply is integrated with elevator power supply failure phase protection. The novel elevator power supply control device is simplified in structure, is high in integration level and less in weight and volume, and thereby being favorable for light-weight trend and miniaturization of an elevator control system.

Description

technical field [0001] The invention relates to electrical equipment of an elevator, in particular to a switching power supply type elevator control power supply device with a phase failure monitoring function. Background technique [0002] Modern elevators generally adopt variable frequency power drive and microcomputer operation control technology. In this elevator control system, an elevator control power supply circuit and a phase failure protection circuit are usually installed. For example, in the elevator control cabinet assembled with NICE3000 elevator integrated controller, the control power circuit is composed of switching power supply with output DC24V, power frequency transformer power supply with output DC110V and AC110V; its phase failure protection circuit is composed of phase failure relay. [0003] The disadvantage of the above-mentioned prior art is that the elevator control power supply circuit and the phase failure protection circuit are set separately, r...

Claims

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Application Information

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IPC IPC(8): B66B1/34B66B1/06
CPCY02B50/127Y02B50/00
Inventor 张方爽
Owner TIANJIN HAOYA SCI & TECH DEV
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