CN2160642Y

CN2160642Y - Sealed constant voltage controlling power for elevator

Info

Publication number: CN2160642Y
Application number: CN 93215596
Authority: CN
Inventors: 吴学泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-07
Filing date: 1993-06-07
Publication date: 1994-04-06
Anticipated expiration: 2003-06-07

Abstract

The utility model relates to a sealed constant-voltage control power for an elevator, belonging to the technical field of a power distribution device. The utility model is designed aiming at the defects that a control power for the elevator has few functions, generally has no voltage-stabilization output performance, and has the ability of being suitable for a new generation elevator by being matched with a plurality of devices; the utility model is composed of a multifunctional semiconductor module, a transformer, and a variable magnetic transductor integrally formed with the transformer; the integral sealed constant-voltage control power for an elevator is formed by flame-retarded resin in a pouring and sealing mode; the utility model has automatic constant voltage and phase sequence identification and detection, and also has the functions of alternate current, direct current and a microcomputer stabilized voltage supply which are required by a modern elevator. The utility model has the characteristics of simple structure, high mechanical strength, good moisture resistance, complete electricity functions, and stable and reliable operation.

Description

Sealed constant voltage controlling power for elevator

A kind of constant voltage sealing elevator control power supply belongs to the distribution equipment technical field.In prior art, elevator control power supply does not generally have the constant voltage output function, does not possess positive-negative power.And need one independent or on voltage transformer a subsidiary bad break phase protector realize that bad break protects mutually; on modern novel elevator, cooperate and could use by the several dispersion system, thereby complex circuit, drawbacks such as installation is loaded down with trivial details, reliability is low, cost height.

The purpose of this utility model is the drawback at above-mentioned prior art, provides a kind of and has multiple alternating current-direct current voltage stabilizing output and computer power and bad break and reflect mutually and survey the multi-functional constant voltage elevator control power supply of performance.And be sealed to integral structure, reliability height, easy to install,

Formation of the present utility model is as shown in Figure 1: it is by voltage transformer (1), with the twin siamesed magnetic saturation reactor of voltage transformer (2), multifunctional semiconductor module (3) and connection terminal (4) are circuit and connect, and become integrally-built elevator control power supply with the flame-retarded resin embedding.Computer power circuit in the multifunction module shown in the accompanying drawing 2 (3) and positive and negative direct current regulation circuit are to be made of rectifier bridge 2, whole bridge 3 and source of stable pressure circuit 7,8,9,10, and the control source magnetic amplifier circuit of variable magnetic saturation reactor is made up of the sampling comparator circuit 4 in the multifunction module (3), magnetic amplifying circuit 11.Bad break reflects mutually and surveys is by phase failure mirror slowdown monitoring circuit 5, and misphase mirror slowdown monitoring circuit 6 and photoelectricity solid-state device 12,13 are formed.

Below in conjunction with the constant voltage implementation procedure of accompanying drawing 1, accompanying drawing 2, detailed description voltage transformer, by winding N ₁-N ₆Constitute voltage transformer (1) with iron core, in addition by winding L _S, L _DThe iron core of the one that links to each other with voltage transformer constitutes variable magnetic saturation reactor (2), the primary winding N of voltage transformer ₁AC winding L with reactor _SBe in series.L _DBe the excitation winding of magnetic saturation reactor, apply vdc, with the magnetic amplifying circuit 11 in the multifunction module (3), the sampling winding N in sampling comparator circuit 4 and the voltage transformer (1) ₆Constitute the automatic magnetic exciting control system.When the voltage transformer input voltage raises, sampling winding N ₆On voltage raise, amplify paraphase through sampling ratio and handle, the DC current of magnetic amplifier 11 outputs is reduced, the magnetic saturation of core of reactor descends, L _SWinding induction reactance increases, by voltage transformer N ₁The electric current of winding also descends, to the output voltage decline that makes transformer secondary output.When the voltage transformer input voltage descends, opposite said process, thereby the effect of realization automatic constant-pressure.

Have the constant voltage sealing elevator control power supply of above-mentioned formation, overcome prior art effectively in the low drawback of the second-rate regional reliability of service of civil power.

Embodiment of the present utility model is as depicted in figs. 1 and 2:

Voltage transformer (1) is to be respectively charged into transformer winding N in two windows of a disjunctor core structure with variable magnetic saturation reactor (2) ₁-N ₆And magnetic saturation reactor winding L _S, L _DN ₁With L _SPolyphone connects, and remaining winding is circuit with the corresponding input pin of semiconductor module (3) and input and output connection terminal (4) respectively and connects.The output connecting pin of semiconductor module (3) connects with output wiring terminal (4).Voltage transformer, module, connection terminal, make one whole.

Bad break in the multifunctional semiconductor module reflects mutually, and survey is imported and the input of voltage transformer is the circuit connection, and output pin is connected with the switching value output of connection terminal (4).

Claims

1, a kind of constant voltage leak free elevator control power supply; it comprises voltage transformer (1) connection terminal (4); of the present utility modelly be characterised in that it has also comprised multifunctional semiconductor module (3); variable magnetic saturation reactor (2) with voltage transformer (1) parabiotic twins; by flame-retarded resin embedding one; friendship is arranged, and DC voltage-stabilizing output and the bad break elevator of protective effect are mutually controlled power supply.

2, elevator control power supply according to claim 1 is characterized in that voltage transformer wherein is by winding N ₁-N ₆Constitute voltage transformer (1) with iron core, in addition by winding L _S, L _DThe reactor (2) that the iron core of the one that links to each other with transformer core constitutes, the primary winding N of voltage transformer ₁AC winding L with reactor _SContact mutually and excitation winding L _DThe constant voltage transformer of forming.

3, elevator control power supply according to claim 1 is characterized in that having comprised the computer power circuit by rectifier bridge 2 in the multifunctional semiconductor module (3) wherein, and rectifier bridge 3, mu balanced circuit 7,9,10 are formed.

4, elevator control power supply according to claim 1; tool is characterised in that it has comprised that also bad break phase protective circuit is by phase failure its discriminator spare 5 and misphase its discriminator spare 6 in wherein the multifunction module; photoelectricity solid-state device 12, photoelectricity solid-state device 13 constitutes, and it has comprised that also the magnetic amplifier circuit is made up of sampling comparator 4 and amplification output circuit 11.