CN201060767Y

CN201060767Y - Microswitch

Info

Publication number: CN201060767Y
Application number: CNU2007201537264U
Authority: CN
Inventors: 陈军
Original assignee: WENZHOU YUQIU SWITCH CO Ltd
Current assignee: Zhejiang Yuyang Technology Co., Ltd.
Priority date: 2007-05-24
Filing date: 2007-05-24
Publication date: 2008-05-14
Anticipated expiration: 2017-05-24

Abstract

The utility model relates to an electric appliance switch, in particular to a microswitch applicable to electric machines, automobiles and household electric appliances, especially microwave ovens. The microswitch comprises a base, an upper cover, a normally closed pin, a normally open pin, a plurality of contacts, a public pin, an elastic piece, a spring and a key; wherein, two seamless notches are respectively arranged at both ends of the middle of the elastic piece, and four thin airfoils are formed on the seamless notches and respectively clamped on two pairs of staggered V-shaped indentations of the public pin; the component, which is formed by the key, the normally closed pin, the elastic piece and the public pin, is arranged in a slot of the base; the end of the elastic piece contacts with the bottom of the key to enable the elastic piece to flex and deform naturally, and the contact at the front end of the elastic piece tightly presses the contact of the normally closed pin; the spring is arranged under the end of the elastic piece, when the key is pressed, the contact at the front end of the elastic piece will touch the contact of the normally open pin, and the upper cover is arranged on the base. The utility model has the advantages of maintaining the tight pressing state with the public pin during the action process of pressing the key, and stabilizing the conducting performance.

Description

Sensitive switch

Technical field

The utility model is a kind of appliance switch, particularly a kind of sensitive switch that is applicable to that electrically powered machine, automobile, household electrical appliance are especially used on the microwave oven.

Background technology

As shown in Figure 2, existing sensitive switch is assembled and is fixed on the public pin by brace 21, shell fragment 22, action contact frame 23.This structure parts are more, complex structure, and assembling is inconvenient, and in the course of action of button, the joint portion branch of these several parts produces the change of contact-making surface, electric conductivity instability.

Summary of the invention

The purpose of this utility model is at the comparatively complicated defective of existing microswitch structure, provide a kind of simple in structure, assembling is convenient, save cost, can guarantee the sensitive switch of the electric and functional stabilization of product simultaneously.

The purpose of this utility model is to realize by following technical scheme: described sensitive switch comprises pedestal, loam cake, normally closed pin, often open pin, the contact, public pin, shell fragment, spring and button, respectively there is a seamless otch the central both sides of shell fragment, make seamless incision constitute four thin wings, these four thin wings are stuck on two couples dislocation V-type indent of public pin, button, the assembly that normally closed pin and shell fragment and public pin constituted is located in the draw-in groove of pedestal, the bottom that makes the end of shell fragment run into button, at this moment shell fragment produces the natural torsion distortion, make the contact of shell fragment front end press the contact of normally closed pin, spring be located at the shell fragment end below, when pressing button, the contact of often opening pin will be touched in the contact of shell fragment 7 front ends, and pedestal is provided with loam cake.

Good effect of the present utility model is as follows: the utility model in the course of action of button, can keep with public pin press state, electric conductivity is stable; Owing to single shell fragment directly is stuck on the public pin,, provides cost savings greatly so reduced amount of parts and assembly process.

Description of drawings

Fig. 1 is the utility model plane structure chart

Fig. 2 is existing sensitive switch plane structure chart

Fig. 3 is the utility model three-dimensional structure diagram

Fig. 4 is shell fragment and public pin connection layout

Fig. 5 is the utility model explosive view

Among the figure: 1 pedestal, 2 loam cakes, 3 normally closed pins

4 often open pin 5 contacts 6 public pins

7 shell fragments, 8 springs, 9 buttons

10 shell fragment otch 11V type indents

Embodiment

Shown in Figure 5 as Fig. 1 Fig. 3, described sensitive switch comprises pedestal 1, loam cake 2, normally closed pin 3, often open pin 4, contact 5, public pin 6, shell fragment 7, spring 8 and button 9, respectively there is a seamless otch the central both sides of shell fragment 7, make seamless incision constitute four thin wings, these four thin wings are stuck on the two couples dislocation V-type indent of public pin 6 (seeing Fig. 4 and Fig. 5), button 9, normally closed pin 3 and shell fragment 7 are located in the draw-in groove of pedestal 1 with the assembly that public pin 6 is constituted, the bottom that makes the end of shell fragment 7 run into button 9, at this moment shell fragment 7 produces the natural torsion distortion, make the contact 5 of shell fragment 7 front ends press the contact 5 of normally closed pin 3, spring 8 be located at shell fragment 7 ends below, when pressing button 9, the contact 5 of often opening pin 4 will be touched in the contact 5 of shell fragment 7 front ends, and pedestal 1 is provided with loam cake 2.

Tension effect because of the middle interconnecting piece branch, make two thin wings of previous section produce the natural torsion distortion, action with button applies contact pressure to the contact of normally closed pin and the contact of Chang Kai pin respectively, and keeps stable contact condition and cross electric energy power in course of action.

Claims

1. sensitive switch, it is characterized in that: described sensitive switch comprises pedestal, loam cake, normally closed pin, often open pin, the contact, public pin, shell fragment, spring and button, respectively there is a seamless otch the central both sides of shell fragment, make seamless incision constitute four thin wings, these four thin wings are stuck on two couples dislocation V-type indent of public pin, button, the assembly that normally closed pin and shell fragment and public pin constituted is located in the draw-in groove of pedestal, the bottom that makes the end of shell fragment run into button, at this moment shell fragment produces the natural torsion distortion, make the contact of shell fragment front end press the contact of normally closed pin, spring be located at the shell fragment end below, when pressing button, the contact of often opening pin will be touched in the contact of shell fragment 7 front ends, and pedestal is provided with loam cake.