CN2686071Y - Detecting switch - Google Patents

Abstract

The utility model relates to a detecting switch, comprising a casing, a cover body, a first fixed joint, a second fixed joint, a movable joint and a driving element. The cover body is matched with the casing to form a holding space. The first fixed joint and the second fixed joint extend from the bottom of the casing to the holding space. The extended part of the second fixed joint is provided with a plurality of gap paths. The movable joint is made up from elastic electricity conducting material. One end of the movable joint is butted on the first fixed joint and rotates winding the first fixed joint. The movable joint also comprises a contacting part which keeps contacting or dissociating with the second fixed joint and a driving element which passes through the inside and the outside of the cover body and acts on the movable joint.

Description

Sense switch

[technical field]

The utility model relates to a kind of sense switch, relates in particular to a kind of sense switch that is used for electronic installation.

[background technology]

(publication number: the spy opens flat 11-144560 at the push-in switch of Japanese publication for prior art such as ALPS company, open day: on May 28th, 1999), this push-in switch can make movable contact component guarantee the electrically conducting state and remain on the fixed terminal rotationally.It has rectangular substantially framework; First fixed terminal with first fixed contact; With first fixed terminal at a distance of predetermined space, and have second fixed terminal of second fixed contact and sealing board; Make by resilient, conductive member, curve the movable part that is the U font substantially, the one end forms the travelling contact that slips with first fixed contact, and the other end forms with the movable contact component of the fulcrum of the second fixed contact crimping and rotatably support and is used to press the operating knob of movable part.

But first fixed contact that slips with travelling contact is a sheet structure, and its density roughly evenly distributes.Because the rotation and first fixed contact come in contact when colliding, because of travelling contact is equally distributed laminated structure, the stress of its generation can be bigger, thereby influence the useful life of product when travelling contact.In addition, first fixed contact and second fixed contact directly are embedded in housing bottom, the second fixed contact vertical extent only is fixed on enclosure interior by the retain strength of shell bottom wall in housing bottom and its, and the phenomenon that often shakes in switch start process influences the steady operation of switch.

[utility model content]

The purpose of this utility model is to provide a kind of product sense switch in useful life of strengthening.

The utility model sense switch comprises housing, lid, first fixed contact, second fixed contact, travelling contact and driving element.Lid cooperates formation one receiving space with housing; First fixed contact and second fixed contact extend to the receiving space place by housing bottom, and the extension of second fixed contact is provided with road, a plurality of gap; Travelling contact is made by elastic conducting material, and an end of travelling contact is connected on first fixed contact and can rotates around first fixed contact, and travelling contact also comprises contact site, and contact site can keep in touch with second fixed contact or separate; Driving element, it is inside and outside and can act on travelling contact to be arranged in lid.

Second fixed contact that contacts with the travelling contact collision in the utility model sense switch adopts laminated structure heterogeneous, promptly the extension of second fixed contact is provided with road, a plurality of gap, when travelling contact and second fixed contact produce collision when contacting, its suffered stress is less, in order to the useful life of strengthening product.

[description of drawings]

Fig. 1 is that figure closes in the three-dimensional unit of the utility model sense switch.

Fig. 2 is the three-dimensional exploded view of the utility model sense switch.

Fig. 3 is the cutaway view of the utility model sense switch.

Fig. 4 is the subelement three-dimensional exploded view of the utility model sense switch.

[embodiment]

See also Fig. 1, Fig. 2 and shown in Figure 3, sense switch 1 comprises housing 2, lid 3, first fixed contact 61, second fixed contact 62, travelling contact 5 and driving element, and wherein driving element is action bars 4 in the present embodiment.Housing 2 is provided with a receiving space 21; First fixed contact 61 and second fixed contact 62 are retained on housing 2 bottoms and extend in receiving space 21; One end of travelling contact 5 is connected on first fixed contact 61 and can rotates around first fixed contact 61, and the other end of travelling contact 5 is provided with contact site 52, and contact site 52 can keep in touch with second fixed contact 62 or separate; Action bars 4 is arranged in inside and outside the lid 3 and can acts on travelling contact 5.

Action bars 4 comprises the body of rod 41 and scotch 42, lid 3 tops are provided with through hole 31, the body of rod 41 is worn to lid 3 and by external force by through hole 31 and acts on the body of rod 41, action bars 4 be subjected to travelling contact 5 elastic restoring force effect and make scotch 42 be connected to the through hole edge of lid 3.The bilateral symmetry of housing 2 is provided with blocked block 22, and the bilateral symmetry of lid 3 is provided with fixing arm 32, and blocked block 22 cooperatively interacts with fixing arm 32.

See also Fig. 3 and shown in Figure 4, travelling contact 5 is made by elastic metallic material, travelling contact 5 comprises U-lag 51, butting section 53 and service portion 54, first fixed contact 61 comprises the coupling part 611 and first pin 612, coupling part 611 is positioned at the terminal of first fixed contact 61 and extends receiving space 21 by housing 2 bottom vertical, first pin 612 is extended to the outside of housing 2 by the inside of housing 2, second fixed contact 62 comprises the extension 620 and second pin 622, then be provided with plurality of gaps road 621 on the extension 620, second pin 622 is extended to the outside of housing 2 by the inside of housing 2, U-lag 51 is held on the coupling part 611 of first fixed contact 61, and travelling contact 5 can rotate around coupling part 611.Actuation of the switch makes action bars 4 do to move vertically downward along lid 3, and service portion 54 is connected to action bars 4 and stressed, drives projection 33 translations of butting section 53 along lid 3 simultaneously, and contact site 52 moves to left thereupon and electrically connects with second fixed contact 62.Sense switch 1 in use, contact site 52 contacts with second fixed contact 62 and disconnects, collision process makes second fixed contact 62 be subjected to stress, setting because of road, gap 621, when collision takes place in the density of its uneven distribution, therefore suffered stress is less for second fixed contact 62, thereby reduces sense switch 1 suffered stress, strengthens the useful life of product.

Housing 2 is provided with first back-up block 25, second back-up block 26 and the 3rd back-up block 27, first fixed contact 61 comprises the first terminal 613 and second terminal 610, the first terminal 611 is embedded between housing 2 bottoms and second back-up block 26, the bottom and with first back-up block 25 support of second terminal 610 from the first terminal 613 vertical extent in housing 2 cooperates, and helps the stability of sense switch 1 in the start process.Second fixed contact 62 comprises fixed part 623 and extension 620, and fixed part 623 is embedded between housing 2 bottoms and the 3rd back-up block 27, and extension 620 vertical extent are in the bottom of housing 2.

Claims (7)

1. sense switch comprises: housing, lid, first fixed contact, second fixed contact, travelling contact and driving element, and housing is provided with a receiving space; Lid covers on the housing; First fixed contact is installed in housing bottom; Second fixed contact is provided with the extension that is extended to receiving space by housing bottom; One end of travelling contact is connected on first fixed contact and can rotates around first fixed contact, and travelling contact also comprises contact site, and contact site can keep in touch with second fixed contact or separate; Driving element is arranged in inside and outside the lid and can acts on travelling contact; It is characterized in that: road, at least one gap distributes on the extension.

2. sense switch as claimed in claim 1 is characterized in that: first fixed contact and second fixed contact are extended perpendicularly in the receiving space by housing bottom respectively.

3. sense switch as claimed in claim 1 is characterized in that: travelling contact also comprises the butting section, and lid is provided with at least one projection to the receiving space extension, and butting section and projection lean.

4. sense switch as claimed in claim 1 is characterized in that: an end of travelling contact is provided with U-lag, and the end of first fixed contact is provided with coupling part, and U-lag is held on the coupling part both sides.

5. sense switch as claimed in claim 1 is characterized in that: driving element can be an action bars, and this action bars comprises a scotch, is connected to lid portion inside.

6. sense switch as claimed in claim 1 is characterized in that: travelling contact also comprises a service portion, and action bars vertically is arranged in the lid, and this action bars acts on the service portion of travelling contact.

7. sense switch as claimed in claim 1 is characterized in that: further stretch out at least one back-up block on the shell bottom wall, cooperate to support with fixed contact.

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