CN2056540U - Switch with tripping spring blade - Google Patents

Abstract

The utility model discloses a switch with tripping spring blade, the on-off action component of which is a tripping spring blade. After gouging out one to two thin strip-shaped portions from a flat strip-shaped elastic sheet metal, the remaining portion can form the tripping spring blade which is an elastic single sheet metal capable of completing the on-off action manually, automatically, and with slow motion. With full utilization of the features, the switch can be used for a plurality of purposes, such as a common switch, a current-limiting switch, a timing switch, an automatic delayed pass switch, a time termination adjustable on-off reciprocating switch, an electric heater combined modulation switch, a single-phase duplex protection switch, a three phase electric protection switch, an electric oven thermostatic switch, etc.

Description

Switch with tripping spring blade

The utility model is a kind of low-voltage electrical apparatus switch that contains film dancing.

Existing appliance switch, the complex structure of its on-off action parts particularly only has simple function, often will adopt spring, and parts such as electromagnet reset its break-make and are swift in motion, and this increases with regard to the parts that make appliance switch and is complicated.

The purpose of this utility model provides a kind of parts such as spring or electromagnet that do not have, and simpler than existing construction of switch, purposes is wide, the low-voltage electrical apparatus switch of long service life.

Appliance switch of the present utility model, its on-off action parts are film dancings.This film dancing has the shape that cuts out one to two elongated strip shaped part back remaining part on the strip elastic sheet metal, and curved on certain part of the both sides of cutouts remaining part little bending is arranged.When film dancing and base fixedly the time, its fixed form has:

1, the centre of film dancing and base are fixed, as C among Fig. 6;

2, contactless end of film dancing and base are fixed, as a, b among Fig. 6;

3, film dancing and "T"-shaped solid machine sheet tighten up, and two ends and the base of "T"-shaped " Mi " are fixed.As d among Fig. 6.

Film dancing is fixed on the base, just constitutes the switch that contains film dancing.Further specify below in conjunction with diagram.

Cut out one to two elongated strip shaped part on the strip elastic sheet metal, as Fig. 1, bend little bending on certain part of remaining part, (with " mouth " shape elastic sheet metal is example, as Fig. 2.) bend after the little bending, this sheet metal has just had two-way beating property, and promptly it can only be in a shown in Figure 3 and b two states.When fixing an end with the finger pressure other end, one crosses middle O position sheet metal will quick rebound into another state.Peace is made the contact in addition, and film dancing has just been made.As Fig. 4.Belong to sheet for " n " and " E " shape elastic metallic, tighten up with two stators at its openend and get final product.

Heating can make the film dancing auto-action around film dancing.As Fig. 7.Certain section of heating film dancing, as the L section, owing to be heated irregularly, the absolute elongation of each section of film dancing does not wait, and this will make the film dancing distortion and rebound, the automaticity of Here it is film dancing.Mode and the "T"-shaped solid machine sheet of film dancing by Fig. 5 tightened up, more "T"-shaped " Mi " two ends and base are fixed, shown in d among Fig. 6, this fixed form can make film dancing fine motion and fine adjustment.Principle is seen Fig. 9.Precession spiral shell handle B, film dancing rotates around "T"-shaped fixing machine sheet fixing point line, and oo ' line tilts, and middle O position reduces.Fine adjustment that Here it is.When a certain moment is continued to be reduced in middle O position, film dancing bounce-back, particularly impetus are apart from "T"-shaped fixing point line distance hour.Small moving all can make film dancing action, fine motion that Here it is.Make full use of the manual of film dancing, fine motion and automaticity can make the film dancing switch that multiple use is arranged.

One, regular tap: be simple and easy to do so fall few by b among Fig. 6 and the obvious film dancing switch of c.

Two, current limiting switch: as Fig. 7, electric current hour, the resistive heater institute heat release of series connection does not make the film dancing action.If electric current increases to certain constantly, the heat energy that resistance wire sends makes the film dancing action, and then the film dancing bounce-back is cut off the electricity supply.

Three, the timing disconnection is closed: as Fig. 7, the electric current that certain specified electrical appliance passes through can make the film dancing action, and film dancing is cold during owing to firm leading to, need just can move through resistance wire heating a period of time, regularly disconnected effect that Here it is, timing can be adjustable in second at 5-100, and influenced by ambient temperature little.If open and with saving a large amount of electric energy with stair illuminations.

Four, the adjustable break-make Reciprocative switch of timing, as Fig. 9, film dancing is fixed by "T"-shaped solid machine sheet and base.The electric current that certain electrical appliance passes through can make the film dancing action.Resistance wire heating a period of time, film dancing action bullet to lower contact contacts and since lower contact middle O position slightly above, through the heat radiation of a period of time, recoil to upper contact again, heating at this moment begins again, film dancing is reciprocal with break-make.Because heating and turnaround time are departed from the distance size decision of middle O position by upper and lower contact, when precession spiral shell handle B, oo ' line tilts, and this is equivalent to lower contact raises, and makes the easier upward bullet of film dancing, so shortens turnaround time.Upper contact is equivalent to raise simultaneously, and increase heating time.Move back the spiral shell handle then otherwise revolve.This switch can use electrical work a period of time, rest a period of time, and make-and-break time length scalable.This switch is particularly suitable for doing the modulation switch of electric heater (as under blanket, grill pan etc.) and electric fan, can make its power output be transferred to nominal power continuously from 1/5 of nominal power.

Also has thermoelectric device unit switch in addition, the automatically logical current limiting switch of time-delay, dual electric prospection switch, three-phase electric apparatus protection switch; the fire alarm switch, electric dry oven thermostat or the like, in a word; utilize the manual of film dancing dexterously, fine motion and automaticity can make the film dancing switch serve many purposes.Above purposes is not except that fire alarm switch model-free is done experiment, and all the other all have mock-up and demonstrating model.

Claims (2)

1, a kind of low-voltage electrical apparatus switch is characterized in that the on-off action parts of this switch are film dancings, and this film dancing is with base fixedly the time, and its fixed form has:

The centre of a, film dancing contacts fixing with base;

The contactless end of b, film dancing contacts fixing with base;

C, film dancing and "T"-shaped solid machine sheet tighten up, and the two ends and the seated connection of " Mi " of "T"-shaped fixing machine sheet touch fixing.

2, appliance switch according to claim 1 is characterized in that above-mentioned film dancing has:

A, on straight strip elastic sheet metal, cut out the shape of one to two elongated strip shaped part back remaining part;

B, curved on certain part of the both sides of cutouts remaining part little bending arranged.