CN2221168Y

CN2221168Y - Rotation rate regulator for fume extractor

Info

Publication number: CN2221168Y
Application number: CN 94223132
Authority: CN
Inventors: 魏金城
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-15
Filing date: 1994-10-15
Publication date: 1996-02-28
Anticipated expiration: 2004-10-15

Abstract

The utility model relates to a rotation rate regulator for a fume extractor, which comprises a power supply, a speed regulation circuit and a motor, wherein the speed regulation circuit is composed of a reactor with at least one outlet terminal and an arbitrary transfer switch with multiple gears, and the width of a moving wafer of the transfer switch with multiple gears is larger than the space between fixed wafers. The utility model can select appropriate air displacement according to different needs and can be widely used in various types of fume extractors. The utility model has the advantages of low energy consumption, low noise and high work efficiency.

Description

The smoke exhaust speed regulator

The utility model relates to the speed regulator of the smoke exhaust of household appliance technical field, particularly a kind of smoke exhaust.

Existing smoke exhaust speed regulator, as the disclosed application number of Chinese patent communique is " 89208288.7 ", name is called the many grades of speed regulators of smoke exhaust of " many grades of rotating speed smoke exhaust circuit ", be by the method that installs decompression capacitor and key switch additional two grades of rotational speed regulation of original smoke exhaust to be increased to fourth gear to reduce noise, energy savings, but motor need restart during the key switch gear shift, and have only fourth gear, limited the further reduction of energy consumption, noise and got rid of the further raising of the efficient of oil smoke, water vapour.

The purpose of this utility model is to provide the smoke exhaust that a kind of energy consumption is low, noise is little, efficient is high speed regulator.

The purpose of this utility model is to realize by following technical scheme:

The smoke exhaust speed regulator comprises that power supply, alignment circuit, motor, alignment circuit are made of the reactor that has a leading-out terminal on it at least and any many grades of change-over switches.

Fixed touching plate on many grades of change-over switches is evenly distributed, and the width of movable contact spring is greater than the spacing between fixed touching plate.

The utility model is owing to adopt stepless or accurate stepless speed regulation, the power attenuation and the noise that cause during no electric motor starting; Can select suitable rotating speed according to different capacities; Reach and both got rid of oil smoke, water vapour, be unlikely to take away too much the heat of cooking stove burning, indoor cold air or the purpose of heating installation again, the efficient height.

Fig. 1 is an electrical principle block diagram of the present utility model;

Fig. 2 is the structural representation of rotary many grades of change-over switches;

Fig. 3 is the structural representation of many grades of change-over switches of direct slide;

Fig. 4 is circuit theory diagrams of the present utility model.

Below in conjunction with drawings and Examples the utility model is further elaborated;

Referring to Fig. 4, the 11, the 12nd, motor, C1, C2 are electric capacity, and J1---J10 is 10 leading-out terminals of reactor L1, and K is a change-over switch, can be divided into 10 grades.

When K switch is received J1, be added to the voltage maximum on the motor 11,12, motor speed is the highest, the capacity maximum; When K switch was received J2, the voltage that is added on the motor 11,12 reduced, and motor speed reduces, and capacity reduces; When K switch is received J10, be added to the voltage minimum on the motor 11,12, motor speed is minimum, and capacity is minimum.

Referring to Fig. 2, the main member of change-over switch 1 has fixed

touching plate

2 and 3,10 fixed touching plates 2 of movable contact spring to link to each other with 10 leading-out terminals of reactor L1 respectively; Fixed touching plate 2 is evenly distributed, and the width of movable contact spring 3 rotates movable contact spring 3 greater than the spacing 4 of fixed touching plate 2, and it is forwarded on another fixed touching plate from a fixed touching plate, just can reach the purpose of regulating rotating speed of motor.

Because the width of movable contact spring 3 is greater than the spacing 4 of fixed touching plate 2, on the fixed touching plate that movable contact spring 3 is forwarded to next grade from former fixed touching plate the time, the rotation process of movable contact spring 3 is: when crossing spacing 4, still contact with former fixed touching plate; Then connect former fixed touching plate and next grade fixed touching plate simultaneously; Break away from former fixed touching plate at last, only contact with the fixed touching plate of next grade; In whole gearshift procedure, motor 11,12 work of switching on all the time, thereby power attenuation that causes when having avoided motor to restart and running use in outage, reach the effect of stepless speed regulation.

Many grades of change-over switches can be revolving, also can be direct slides, and the movable contact spring of many grades of change-over switches of direct slide is identical with revolving many grades of change-over switches with the version of fixed touching plate and rotation process, sees Fig. 3.

This speed regulator can connect one or more motor.

Claims

1, a kind of smoke exhaust speed regulator comprises power supply, alignment circuit, motor, it is characterized in that: alignment circuit is made of the reactor that has a leading-out terminal on it at least and any many grades of change-over switches.

2, smoke exhaust speed regulator as claimed in claim 1 is characterized in that: the fixed touching plate on many grades of change-over switches is evenly distributed, and the width of movable contact spring is greater than the spacing between fixed touching plate.