CN2556770Y

CN2556770Y - Microswitch

Info

Publication number: CN2556770Y
Application number: CN 02218079
Authority: CN
Inventors: 周寨红
Original assignee: YIREN HANDICRAFT (NINGBO) CO Ltd
Current assignee: YIREN HANDICRAFT (NINGBO) CO Ltd
Priority date: 2002-06-10
Filing date: 2002-06-10
Publication date: 2003-06-18
Anticipated expiration: 2012-06-10

Abstract

A micro-switch comprises a base seat of non-conductive materials, the upper part of the base seat is provided with an opening and is covered by a cover plate of conductive materials, and the cover plate is one pole of the switch; the hollow inside of the base seat is provided with a conductive gasket at the bottom, and an element electrically connected with the conductive gasket and going through and extending out of the base seat is the other pole of the switch; a spring of conductive materials is arranged above the conductive gasket, and the bottom of the spring contacts with the conductive gasket, and the top of the spring contacts with a conductive loop; a button of non-conductive materials goes through a hole in the cover plate from up to down and extends into the base seat; the conductive loop is connected at the bottom of the button, the upper end face of the conductive loop keeps contact with the inner wall of the cover plate under the force of the spring in a natural state. The utility model keeps a closed state when no outside force exists, while once micro outside force forces the button, the state changes to an open state rapidly. Compared with the prior art, the utility model has the advantages of sensitive motion and low production cost.

Description

A kind of sensitive switch

Technical field

The utility model relates to a kind of mechanical switch, particularly a kind of sensitive switch.

Background technology

Our European patent EP 1121963 discloses a kind of children and uses the picture mosaic product, when children put into the picture mosaic assembly groove on the jigsaw exactly, can play the music or the sound of reservation automatically and make correct operation to inform children.For this reason, in groove, must be provided with a switch element, in existing product, employing be light-operated switch, when the picture mosaic assembly was placed into corresponding groove, light was interdicted fully, therefore switch is made corresponding change.And in view of the production cost and the sensitivity of light-operated switch, its effect is still not ideal enough.For this reason, we seek a kind of mechanical sensitive switch, mostly are wooden at the picture mosaic assembly, so this sensitive switch needs higher sensitivity.

Summary of the invention

Technical problem to be solved in the utility model is exactly to provide the sensitive switch that can make on-off effect to less pressure at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: sensitive switch includes the base of a non-conductive material, the upper opening of this base, and cover by the cover plate of a conductive material, this cover plate is a utmost point of switch; Hollow inside at base, one conductive spacer is arranged on its bottom, and there is the element that electrically contacts with it to run through and draws outside the base another utmost point as switch, be provided with the spring of a conductive material on the conductive spacer, the bottom of spring and described conductive spacer are inconsistent, and the top of spring and a conduction ring plate are inconsistent; The hole that the button of one non-conductive material runs through on the cover plate is from top to bottom stretched in the base, and described conduction ring plate is connected the bottom position of this button, and under nature, the upper surface of this conduction ring plate keeps contacting with the cover plate inwall under the effect of spring.

Described sensitive switch is kept closed when no external force, and in case when having small external force to act on the button, immediately change off-state into, compared with prior art, the utility model is active in one's movements and low cost of manufacture.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment.

Fig. 2 is the structure cross-sectional schematic when nature embodiment illustrated in fig. 1.

Fig. 3 is the structure cross-sectional schematic when being subjected to external force and influencing embodiment illustrated in fig. 1.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 3, sensitive switch includes the base 1 of a non-conductive material, the upper opening of this base 1, and cover by the cover plate 2 of a conductive material, this cover plate 2 is a utmost point of switch; One annular conductive spacer 6 is arranged on the bottom of base 1, and the central authorities of base 1 are provided with a projection 11, and it is with the spring 5 of a conductive material, and the bottom of spring 5 and described conductive spacer 6 are inconsistent, and the top of spring 5 and a conduction ring plate 4 are inconsistent; The hole that the button 3 of one non-conductive material runs through on the cover plate is from top to bottom stretched in the base, and its central authorities have the hole and are enclosed within outside the projection 11 of base central authorities, and described conduction ring plate 4 is mounted in the bottom position of this button 3;

Under nature, the upper surface of this conduction ring plate 4 keeps contacting with cover plate 2 inwalls under the effect of spring 5, cover plate 2 as switch one utmost point is connected with the conductive spacer 6 as another utmost point through conduction ring plate 4, power spring 5, also is that switch is in closure state, referring to Fig. 2; And depressed by external force when button 3, conduction ring plate 4 breaks away from cover plate 2 and does not contact, and also is that switch is in off-state, referring to Fig. 3.

In actual use, connect for convenient, cover plate 2 and conductive spacer 6 as switch two utmost points all can be drawn contact, contact or the wiring that electrically contacts with it, in accompanying drawing embodiment, then direct side at cover plate 2 is provided with tabs 21, and penetratingly draw a contact 61 that electrically contacts with conductive spacer 6 from base 1 side, referring to Fig. 1.

Though the utility model case is to design at jigsaw puzzle, its application is not limited to this, can be applied to the occasion that other need sensitive switch, and therefore therefore protection range of the present utility model is not limited to yet.

Claims

1, a kind of sensitive switch is characterized in that including the base of a non-conductive material, the upper opening of this base, and cover by the cover plate of a conductive material, this cover plate is a utmost point of switch; Hollow inside at base, one conductive spacer is arranged on its bottom, and there is the element that electrically contacts with it to run through and draws outside the base another utmost point as switch, be provided with the spring of a conductive material on the conductive spacer, the bottom of spring and described conductive spacer are inconsistent, and the top of spring and a conduction ring plate are inconsistent; The hole that the button of one non-conductive material runs through on the cover plate is from top to bottom stretched in the base, and described conduction ring plate is connected the bottom position of this button, and under nature, the upper surface of this conduction ring plate keeps contacting with the cover plate inwall under the effect of spring.

2, sensitive switch according to claim 1 is characterized in that described base central authorities are provided with a projection, and described spring promptly is enclosed within outside this projection, and simultaneously, described button central authorities have the hole and overlap outside this projection.

3, sensitive switch according to claim 1 and 2 is characterized in that being provided with the draw contact of tabs as switch one utmost point at described cover plate side.

4, sensitive switch according to claim 1 and 2 is characterized in that penetratingly drawing the draw contact of a conductive contact blade that electrically contacts with conductive spacer as another utmost point of switch from described chassis side.