CN205739844U

CN205739844U - A kind of elevator power failure deliverance apparatus

Info

Publication number: CN205739844U
Application number: CN201620720091.0U
Authority: CN
Inventors: 陈清槐; 张辑
Original assignee: XIAMEN HONGXIN ELECTRIC COMPLETE SET Co Ltd
Current assignee: XIAMEN HONGXIN ELECTRIC COMPLETE SET Co Ltd
Priority date: 2016-07-08
Filing date: 2016-07-08
Publication date: 2016-11-30
Anticipated expiration: 2026-07-08

Abstract

This utility model belongs to elevator control technology field, is specifically related to a kind of elevator power failure deliverance apparatus.It includes control module and the inversion module being connected with control module and charging module, charging module is control module and inversion module is powered, control module includes control circuit and city's power detection circuit, control circuit is connected with city's power detection circuit, inversion module includes power supply, drive circuit and PWM inverter circuit, PWM inverter circuit is connected with power supply through drive circuit, and power supply is drive circuit and PWM inverter circuit is powered.This utility model is for elevator power failure, and largely elevator repair and maintenance unit can be down to minimum because of the impact reached the spot in failing in required time by elevator power failure deliverance apparatus, reduces elevator repair and maintenance unit and the work of repair and maintenance personnel and economic pressures.

Description

A kind of elevator power failure deliverance apparatus

Technical field

This utility model belongs to elevator control technology field, is specifically related to a kind of elevator power failure deliverance apparatus.

Background technology

In the keen competition of elevator industry circle, the development maked rapid progress along with science and technology, various new materials, new technology, new Technology is constantly utilized in elevator, in order to elevator towards safely, quickly, the direction such as more intelligent degree develops.At electricity When ladder is properly functioning, if had a power failure suddenly, lift car is probably parked in the middle of adjacent two stops, and the passenger in elevator is very May be caught in and car cannot be left.

Referenced patent document CN201999600U discloses a kind of power failure rescue device of elevator without machine room, including car, energy Enough driving the traction steel-cable of car lifting, traction steel-cable includes to make orthokinetic car section steel wire rope with car, Power failure rescue device also includes fixed clamp car section folder on car section steel wire rope, lower suspension hook can to hook car Section folder and hook can be hooked in the chain block on the position that elevator is not made to lift or electric block.This patent documentation is By improving elevator structure to realize completing to rescue people when elevator power failure working.

In recent years, significantly reduce, simultaneously, because of various outsides because the fault of elevator self causes stopping the oppressive situation of ladder Factor cause elevator supply problem cause elevator stop ladder oppressive problem day by day show especially out.Owing to China's need for electricity amount is obvious Increasing, the electric power problem that supply falls short of demand is day by day obvious, and each area it is frequently necessary to the peak of power consumption that staggers, even house, commercial power The most impacted, the oppressive frequent generation of elevator power failure.Elevator malfunction during in order to avoid having a power failure, increasing elevator customer is loaded onto Elevator power failure deliverance apparatus.

Utility model content

The weak point existed for prior art, elevator malfunction during in order to avoid having a power failure, the utility model proposes one Plant elevator power failure deliverance apparatus.For elevator power failure, largely elevator power failure deliverance apparatus can be by elevator repair and maintenance unit Impact because reaching the spot in failing in required time is down to minimum, reduce elevator repair and maintenance unit and repair and maintenance personnel work and Economic pressures.

This utility model adopts the following technical scheme that

A kind of elevator power failure deliverance apparatus, it includes control module and the inversion module being connected with control module and charging mould Block, charging module is control module and inversion module is powered, and control module includes control circuit and city's power detection circuit, controls electricity Road is connected with city's power detection circuit, and inversion module includes power supply, drive circuit and PWM inverter circuit, PWM inverter circuit warp Drive circuit is connected with power supply, and power supply is drive circuit and PWM inverter circuit is powered.

Further, also including protection circuit, protection circuit includes that output voltage overload protecting circuit, loop current are protected Circuit and cell voltage over-and under-voltage protection circuit.

Further, control circuit uses DSPIC33FJ16GS504 chip.

Further, power supply is the inverse-excitation type switch power-supply using UC3845A chip.

Further, drive circuit uses IR2110 chip.

The utility model proposes a kind of elevator power failure deliverance apparatus, when this elevator power failure deliverance apparatus detects that civil power stops When electricity, phase shortage, phase sequence mistake, cut off contacting of civil power and elevator immediately.By the detection elevator safety loop of elevator self Links is the most abnormal, and lift car is either with or without being parked in non-level position, and whether elevator is at inspecting state etc..Detection knot After whether fruit meets the condition of emergency operating, elevator starts to save oneself.Elevator power failure deliverance apparatus to elevator supply, elevator device to Upper and lower 2 directions are respectively run 1 time, then to saving force direction low cruise.When elevator device detects that cage operation direction is During nearly level position, flat bed, open the door and put people, car door is in open mode until elevator quits work.

Accompanying drawing explanation

Fig. 1 is the structure chart of elevator power failure deliverance apparatus；

Tu2Shi city power detection circuit figure；

Fig. 3 is power supply circuit figure；

Fig. 4 is drive circuit figure；

Fig. 5 is PWM inverter circuit figure；

Fig. 6 is charging module circuit diagram.

Detailed description of the invention

For further illustrating each embodiment, this utility model is provided with accompanying drawing.These accompanying drawings are in this utility model discloses The part held, it is mainly in order to illustrate embodiment, and the associated description of description can be coordinated former to the running explaining embodiment Reason.Coordinating with reference to these contents, those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new The advantage of type.Assembly in figure is not necessarily to scale, and similar element numbers is conventionally used to indicate similar assembly.

In conjunction with the drawings and specific embodiments, this utility model is further illustrated.

Refering to shown in Fig. 1 to Fig. 6, a kind of elevator power failure deliverance apparatus of a this utility model preferably embodiment, it includes Control module 1 and the inversion module 2 being connected with control module 1 and charging module 3, charging module 3 is control module 1 and inversion mould Block 2 is powered, and charging module 3 provides power supply for whole device, when this embodiment is in stand-by state, utilizes charging panel for 55v Unidirectional current charges a battery.Inversion module 2 is principally obtaining single-phase 380V AC AC power source of sine wave and exports to elevator negative Carry.Main control module mainly completes inversion control, overcurrent-overvoltage overheating detection and maintenance, flat bed signals collecting.

Control module 1 includes control circuit and city's power detection circuit, and control circuit is connected with city's power detection circuit.This enforcement The control circuit of example uses DSPIC33FJ16GS504 chip, and DSPIC33FJ16GS504 is 16 embedded micro-control units, Supporting various inverter, Motor control Application, such as DC brushless motor, single-phase and three phase AC induction machine and switching magnetic-resistance Motor.Refering to shown in Fig. 2, for city's power detection circuit figure.When civil power occurs unexpected power failure phase shortage or the situation of external power grid fault, should Embodiment can detect immediately, and exports 380V power supply after postponing to start in the 15S time, simultaneously mutual within this embodiment Latch contact cuts off civil power, it is ensured that output 380V power supply conflicts with line voltage, it is ensured that safety.

Inversion module 2 includes power supply, drive circuit and PWM inverter circuit, and PWM inverter circuit is through drive circuit and confession Electricity power supply connects, and power supply is drive circuit and PWM inverter circuit is powered.Refering to shown in Fig. 3, it it is power supply circuit figure. Power supply is inverse-excitation type switch power-supply based on UC3845A chip, and inverse-excitation type switch power-supply is few with its simple in construction, components and parts It is widely used in small-power switching power-supply etc. advantage.The regulation part of switch power source output voltage uses pulsewidth modulation (PWM) technology, i.e. in the case of pulse width period is constant, change according to input voltage or load regulates power MOS pipe conducting Dutycycle make output voltage stabilization.The method of pulsewidth modulation is a lot, and this charging is used a kind of separate excitation examination control chip UC3845.UC3845 is to aim at the dc-dc converter applications of off-line and design.It is mainly characterized by having inside and shakes Swing device, starting current little, in high precision error comparator, compare by week current sampling, big electric current totem pole output etc., be to drive The conventional device of MOSFET.

Refering to shown in Fig. 4, it it is drive circuit figure.Drive circuit as the emphasis of inversion module 2, be connect control unit with The tie of power tube.The level voltage of control signal output typically cannot directly drive power tube, and a level voltage will be had to turn Change and drive electric current；Relative to drive circuit, the grid of metal-oxide-semiconductor is load, has a parasitic electricity between general metal-oxide-semiconductor grid source Holding, the load of drive circuit is a capacitive load, and when driving electric current not enough or improving frequency, square wave will produce distortion, nothing Method reaches predetermined purpose.

Power MOS pipe in inversion module 2 requires turn off when turning off and turn on rapidly and turn on, and can maintain shutoff The leakage current of period is approximately equal to zero, and tube voltage drop during conducting is the smaller the better is approximately equal to zero.Under when metal-oxide-semiconductor tends to turning off The fall time and tend to conducting time rise time be the soonest reduce MOS loss power, improve inversion module 2 efficiency key because of Element.The two time to be shortened, depend primarily on the driving signal being added in switching tube grid.

Refering to shown in Fig. 5, it it is PWM inverter circuit figure.PWM inverter circuit uses SPWM modulation, and direct current is become exchange. The basic ideas of SPWM modulation are that the square wave utilizing pulsewidth not wait carrys out equivalent sine wave, it is ensured that the square wave that pulsewidth does not waits comes corresponding First-harmonic is the most equal with frequency, amplitude and the phase place of the sine wave of required equivalence.

Refering to shown in Fig. 6, it it is charging module 3 circuit diagram.Charging module 3 provides charge power supply, this enforcement for this embodiment When example is in holding state, utilizes line voltage to be modulated to conversion dc voltage through pwm pulse and charge a battery for 55V.Fill Electricity module 3 is mainly made up of the switching power circuit that UC3842 is core exploitation.

In order to ensure that security of system works, it is provided with sampling protection circuit for this: output voltage overload protecting circuit, loop Current protecting circuit and cell voltage over-and under-voltage protection circuit.

Accumulator tissue is charged by this embodiment at holding state, charging module 3.Elevator is normal (non-inspecting state) In the case of operation, disconnecting the release of elevator device electrical network main power preposition catalyst, the catalyst in this embodiment starts adhesive Contactor coil loop is disconnected interlocking.In waiting elevator device, electric capacity discharges, and then this embodiment sends exchange AC380V supplies elevator device, and then whether elevator device detection car is positioned at a district, if being in a district directly send enabling letter Number；If not gate district, to elevator-mainboard UPS signal, wait and set time value (waiting the band-type brake time).If within the setting time There is elevator internal contracting brake signal then elevator to save oneself speed or inspection speed puts people to leveling opening.In running process of elevator, this is real Execute example and carry out detecting various fault: as emergency operating output voltage detects, emergency load over-current detection, emergency cell brownout Detection, if be detected that fault, this embodiment then quits work.Whether emergency operating puts inspection in band-type brake detection, emergency operating Repairing detection, fault of converter detection, emergency operating time-out detection etc. is to have elevator device to complete.If be detected that above fault, Then elevator terminates emergency operating.

Although specifically show and describe this utility model in conjunction with preferred embodiment, but those skilled in the art should This is understood, in the spirit and scope of the present utility model limited without departing from appended claims, in form and details On this utility model can be made a variety of changes, be protection domain of the present utility model.

Claims

1. an elevator power failure deliverance apparatus, it is characterised in that: it includes control module and the inversion mould being connected with control module Block and charging module, described charging module is control module and inversion module is powered, described control module include control circuit and City's power detection circuit, control circuit is connected with city's power detection circuit, described inversion module include power supply, drive circuit and PWM inverter circuit, PWM inverter circuit is connected with power supply through drive circuit, and power supply is drive circuit and PWM inversion electricity Road powers.

2. elevator power failure deliverance apparatus as claimed in claim 1, it is characterised in that: also include protection circuit, described protection electricity Road includes output voltage overload protecting circuit, loop current protection circuit and cell voltage over-and under-voltage protection circuit.

3. elevator power failure deliverance apparatus as claimed in claim 1, it is characterised in that: described control circuit uses DSPIC33FJ16GS504 chip.

4. elevator power failure deliverance apparatus as claimed in claim 1, it is characterised in that: described power supply is to use UC3845A The inverse-excitation type switch power-supply of chip.

5. elevator power failure deliverance apparatus as claimed in claim 1, it is characterised in that: described drive circuit uses IR2110 core Sheet.