CN203910609U

CN203910609U - Micro switch

Info

Publication number: CN203910609U
Application number: CN201420285279.8U
Authority: CN
Inventors: 尚小女
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-05-30
Filing date: 2014-05-30
Publication date: 2014-10-29
Anticipated expiration: 2024-05-30

Abstract

The utility model discloses a micro switch which comprises a casing body, a button and a connection contact, wherein the button and the connection contact run out of the casing body. An upper elastic piece is arranged at a middle position at the upper part of the casing body. A lower elastic piece is arranged at a middle position at the lower part of the casing body. A special-shaped elastic piece is arranged in the casing body. Upper and lower ends of the special-shaped elastic piece are respectively connected with the upper elastic piece and the lower elastic piece. The upper elastic piece presses the button and is inclined above the casing body. The connection contact comprises a normally closed contact and a normally open contact. A movable elastic piece is arranged between the normally closed contact and the normally open contact. A spring is arranged on the tail end of the movable elastic piece. The spring abuts against the special-shaped elastic piece in the casing body. The lower end of the button abuts against the tail end of the special-shaped elastic piece through a hook in the casing body. By touching the elastic pieces, the button is indirectly touched. The spring is added, thus the self-reset capability is strong. The button can frequently switch on and off. The improved micro switch has the advantages of simple structure and long service life.

Description

A kind of sensitive switch

Technical field

The utility model relates to a kind of sensitive switch.

Background technology

Common sensitive switch, comprise housing and stretch out the button outside housing, in button one side, there is a projection, increase the projection of sensitive switch one side or two sides, play supporting and guide effect, this structure makes touch part directly encounter button, then produce action, but button, as direct touching person, easily weares and teares and damages, and shortens useful life; And the Self-resetting of button is not fine, press down connection, more just click and disconnect, need a period of time just can complete the consecutive steps switching on and off, if being used in, sensitive switch switches on and off place frequently, do not reach such sensitivity.Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.

Utility model content

For addressing the above problem, it is a kind of simple in structure that the utility model provides, and connects and disconnect fast sensitive switch.

The technical scheme that the utility model provides:

A kind of sensitive switch, comprise housing, through the button outside housing be connected contact, described housing upper middle position is provided with shell fragment, described lower housing portion centre position is provided with lower shell fragment, in described housing, be provided with profile leaf spring, the two ends up and down of described profile leaf spring are connected with lower shell fragment with upper shell fragment respectively, described upper shell fragment was pressed button and was favoured housing top, described connection contact comprises normally closed interlock and normally open contact, between described normally closed interlock and normally open contact, be provided with spring plate, described spring plate end is provided with spring, described spring is against on the profile leaf spring in housing, described button lower end is against the end of profile leaf spring by the drag hook in housing.

Described profile leaf spring be shaped as triangle.

The housing of described upper shell fragment below is provided with Self-resetting spring.

Described drag hook be shaped as arc.

The beneficial effects of the utility model: touching shell fragment reaches the object of indirect touching button, increases spring, and self-resetting capability grow, can make button switch on and off frequently, simple in structure, long service life.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

1, housing, 2, button, 3, upper shell fragment, 4, lower shell fragment, 5, profile leaf spring, 6, normally closed interlock, 7, normally open contact, 8, spring plate, 9, spring, 10, drag hook, 11, Self-resetting spring.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As shown in Figure 1, a kind of sensitive switch of the present utility model, comprise housing 1, through the button 2 outside housing 1 be connected contact, housing 1 upper middle position is provided with shell fragment 3, housing 1 lower middle position is provided with lower shell fragment 4, in housing 1, be provided with profile leaf spring 5, the two ends up and down of profile leaf spring 5 are connected with lower shell fragment 4 with upper shell fragment 3 respectively, upper shell fragment 3 was pressed button 2 and was favoured housing 1 top, connect contact and comprise normally closed interlock 6 and normally open contact 7, between normally closed interlock 6 and normally open contact 7, be provided with spring plate 8, spring plate 8 ends are provided with spring 9, spring 9 is against on the profile leaf spring 5 in housing 1, button 2 lower ends are against the end of profile leaf spring 5 by the drag hook 10 in housing 1.

Profile leaf spring 5 be shaped as triangle.The profile leaf spring 5 of this shape is difficult for out of shape, frequent operation, and spring 9 touching profile leaf springs 5 walk up and down, but indeformable.

The housing 1 of upper shell fragment 3 belows is provided with Self-resetting spring 11, and self-resetting capability grow can make button switch on and off frequently.

Drag hook 10 be shaped as arc.The end of arc-shaped draw hook 10 is against on leg-of-mutton profile leaf spring 5, realizes upper and lower displacement, thereby spring plate is connected with normally closed interlock 6 or normally open contact 7, realizes the function of quick-make or disconnection.

In touching, shell fragment 3 reaches the object of indirect touching button 2, increases Self-resetting spring 11, and self-resetting capability grow, can make button 2 switch on and off frequently, simple in structure, long service life.

Claims

1. a sensitive switch, comprise housing, through the button outside housing be connected contact, it is characterized in that: described housing upper middle position is provided with shell fragment, described lower housing portion centre position is provided with lower shell fragment, in described housing, be provided with profile leaf spring, the two ends up and down of described profile leaf spring are connected with lower shell fragment with upper shell fragment respectively, described upper shell fragment was pressed button and was favoured housing top, described connection contact comprises normally closed interlock and normally open contact, between described normally closed interlock and normally open contact, be provided with spring plate, described spring plate end is provided with spring, described spring is against on the profile leaf spring in housing, described button lower end is against the end of profile leaf spring by the drag hook in housing.

2. a kind of sensitive switch according to claim 1, is characterized in that: described profile leaf spring be shaped as triangle.

3. a kind of sensitive switch according to claim 1, is characterized in that: the housing of described upper shell fragment below is provided with Self-resetting spring.

4. a kind of sensitive switch according to claim 1, is characterized in that: described drag hook be shaped as arc.