CN203513002U

CN203513002U - Built-in type elevator control power supply

Info

Publication number: CN203513002U
Application number: CN201320560652.1U
Authority: CN
Inventors: 张方爽
Original assignee: TIANJIN HAOYA SCIENCE & TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: TIANJIN HAOYA SCIENCE & TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2013-09-10
Filing date: 2013-09-10
Publication date: 2014-04-02
Anticipated expiration: 2023-09-10

Abstract

The utility model discloses a built-in type elevator control power supply which is arranged in an integrated controller or a frequency converter of an elevator. An isolation type switching power supply is adopted, a power supply of the elevator is connected into through a three-phase power supply input terminal, passes through a rectification filter circuit to form a direct current which is output to a DC/DC conversion circuit, the output of the DC/DC conversion circuit is a multi-channel direct current power supply, the negative electrode end is grounded, and the positive electrode end is respectively connected into a safety circuit, an operation control circuit, a brake circuit and a microcomputer control circuit through fuse protectors. The built-in type elevator control supply is light in weight and small in size, the structure is simplified, the integration level is improved, and the built-in type elevator control power supply is beneficial to the light-weight trend and miniaturization of an elevator control system.

Description

A kind of built-in elevator is controlled power supply

Technical field

The utility model relates to the electrical equipment of elevator, specifically, is a kind of device that elevator control circuit is provided power supply in elevator control cabinet.

Background technology

The elevator of prior art is controlled power supply and normally by the electrical source of power of elevator, is inputted, and by Industrial Frequency Transformer, rectifier etc., provides multiple-output electric power.The control power supply of OTIS3000 elevator for example, AC110V is to vital circuit and contactless switch, Control power supply; DC30V controls power supply to microcomputer; DC125V powers to drg; DC24V, 15V, 6V are to control circuit power supplies such as demonstration, calls.The apparatus for controlling elevator forming at elevator industry widespread use integrated controller in recent years, it is controlled power supply and is comprised of Switching Power Supply and Industrial Frequency Transformer, rectifier etc., output DC24V, DC110V, AC110V power supply, advantage is the power demands that has met control circuit, and realized the electrical isolation with civil power, be convenient to implement the short-circuit protection of control circuit; Weak point is that Industrial Frequency Transformer volume and weight are larger, is unfavorable for miniaturization, the lightness of elevator control cabinet.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of elevator integrated controller or frequency converter of being arranged at is provided, and the elevator based on isolation type switching power supply is controlled supply unit.

The utility model solves the technical scheme that its technical matters adopts: described built-in elevator is controlled power supply and is arranged at elevator integrated controller or frequency converter, and it is isolation type switching power supply that built-in elevator is controlled power supply; Elevator power supply source, by the access of three-phase power input end, becomes direct current (DC) after current rectifying and wave filtering circuit, outputs to DC/DC change-over circuit; DC/DC change-over circuit is output as multi-channel dc power supply, is connected, for the elevator control circuit power supply of different operating voltage with Switching Power Supply lead-out terminal etc.

Described built-in elevator is controlled power supply, and output can be to be DC110V and DC24V multi-channel dc power supply, DC110V power supply "-" end ground connection wherein, and "+" end accesses respectively vital circuit, running control circuit, the brake circuit of elevator through fuse; DC24V power supply "-" end ground connection, "+" end connects the microcomputer control circuit of elevator through fuse.

The utility model compared with prior art, have the following advantages and beneficial effect: the elevator that adopts the replacement of built in switch power supply to be comprised of Industrial Frequency Transformer is controlled power supply, meeting under the power demands prerequisite of elevator control circuit, weight and volume that elevator is controlled supply unit reduce, designs simplification; The input of built in switch power supply connects the current rectifying and wave filtering circuit of frequency converter, can save circuit component, reduces volume, improves integrated level, is conducive to lightness, the miniaturization of apparatus for controlling elevator.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the structured flowchart of first embodiment of the utility model.

Fig. 2 is output circuit block diagram of the present utility model.

In figure, 1. current rectifying and wave filtering circuit, 2.DC/DC conv, 3.DC110V and DC24V lead-out terminal, 4. fuse, 5. fuse, 6. fuse, 7. fuse, 8. microcomputer control circuit, 9. vital circuit, 10. running control circuit, 11. brake circuits.

The specific embodiment

In Fig. 1, DC/DC Switching Power Supply is arranged among elevator integrated controller, becomes a part for elevator integrated controller.Elevator power supply source is through three-phase power input end access, through the current rectifying and wave filtering circuit of frequency converter, becomes direct current (DC), then is input to DC/DC dress and changes circuit and be converted into multi-channel dc power supply, through Switching Power Supply lead-out terminal, exports.

In Fig. 2, the direct supply that the current rectifying and wave filtering circuit (1) that the input end of DC/DC conv (2) is frequency converter provides, through DC110V and DC24V lead-out terminal (3) output.

Special safety equipment specification regulation: " zero line separates all the time with ground wire ", " cause ground connection if include the circuit ground of electric safety device or contacting metal member, this circuit should make elevator drive main frame shut down immediately ".Because DC110V and the DC24V lead-out terminal (3) of this device have been realized electrical isolation with the current rectifying and wave filtering circuit (1) of frequency converter by DC/DC change-over circuit (2), be also equivalent to isolate with elevator power supply source.Its "-" termination enters the ground wire of elevator device, "+" end is linked into respectively microcomputer control circuit (8), vital circuit (9), running control circuit (10), brake circuit (11) through fuse (4), (5), (6), (7), the rated current of its fuse is by corresponding load apolegamy.Like this, when ground connection or contacting metal member occur foregoing circuit, while causing ground connection, line electricity fails to be convened for lack of a quorum and greatly increases, and causes fuse blows, cuts off the power supply of circuit, with this, realizes the control that elevator drive main frame is shut down, and plays the effect of ground protection.

The brake circuit of the present embodiment (11), running control circuit (10) are chosen to be DC110V with the operating voltage of vital circuit (9).The running control circuit of prior art is used alternating current operation contactless switch conventionally, and this circuit is selected DC operation contactor, and to adapt to the DC supply of Switching Power Supply, its running noises lowers, and cost has increased slightly.Microcomputer control circuit comprises computer control board and call circuit, display circuit etc., and its operating voltage is chosen to be DC24V.

Below with embodiment, the utility model has been carried out launching to describe by reference to the accompanying drawings, this description does not have restricted, the embodiment that shown in accompanying drawing, also just the utility model forms, and the technical solution of the utility model is not limited to this.Those of ordinary skill in the art should be understood that, in the situation that not departing from the utility model design philosophy, and the actual variation in some details of implementing also to have of the present utility model.So as long as meet aim of the present utility model, these variations include within protection domain of the present utility model.

Claims

1. built-in elevator is controlled a power supply, it is characterized in that: described built-in elevator is controlled power supply and is arranged at elevator integrated controller or frequency converter, and it is isolation type switching power supply that built-in elevator is controlled power supply; Elevator power supply source, by the access of three-phase power input end, becomes direct current (DC) after current rectifying and wave filtering circuit, outputs to DC/DC change-over circuit; DC/DC change-over circuit is output as multi-channel dc power supply, is connected, for the elevator control circuit power supply of different operating voltage with Switching Power Supply lead-out terminal.

2. built-in elevator is controlled power supply as claimed in claim 1, it is characterized in that: described built-in elevator is controlled power supply and is output as DC110V and DC24V multi-channel dc power supply, DC110V power supply "-" end ground connection wherein, "+" end accesses respectively vital circuit, running control circuit, the brake circuit of elevator through fuse; DC24V power supply "-" end ground connection, "+" end connects the microcomputer control circuit of elevator through fuse.