CN201213120Y

CN201213120Y - Circuit breaking switch structure

Info

Publication number: CN201213120Y
Application number: CNU2008201144293U
Authority: CN
Inventors: 郭万国
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-19
Filing date: 2008-05-19
Publication date: 2009-03-25
Anticipated expiration: 2018-05-19

Abstract

A circuit breaker structure comprises a shell body, a cover body and a push button. The upside of the shell body is provided with an opening, the interior of the shell body is provided with an elastic clamping groove and an arc-shaped clip, and the lower end of the shell body is provided with a terminal clamping groove. The cover body is arranged on the side of the shell body. The push button is arranged at the upper opening of the shell body, and a convex plate is arranged below the push button. An indicating lamp is arranged below the push button. The convex plate below the push button is provided with a pull rod, and the lower end of the pull rod is provided with a pull-rod flange. The convex plate is provided with a pressing bar. One end of the elastic body is arranged at the elastic clamping hook of the pressing bar, and the other end of the elastic body is arranged into the elastic clamping groove. The left terminal clamping groove is provided with a constant-closed terminal. The central terminal clamping groove is provided with a constant-opened terminal with a lower silver contact point embedded at the front end. The right terminal clamping groove is provided with a joint terminal with the front end connected with the back end of a bimetallic strip. The front end of the bimetallic strip is embedded with an upper silver contact point, the middle section of the bimetallic strip is provided with a disc-shaped flange, and the back end of the bimetallic strip is connected with the front end of the joint terminal. The positioning of a bimetallic strip after a circuit break can still be achieved without adopting a V-grooved adjusting block or a bent elastic strip, thereby components and processing procedures are simplified.

Description

The disconnect structure

Technical field

The utility model relates to a kind of disconnect structure, be particularly related to a kind of physical characteristic and formed active force of dish-type flange inverse change that utilizes bimetal leaf, make depression bar cooperate elastomer to promote button, Ke Guan loop circuit still when making button be subjected to external force that weight maybe can't get rid of, and external force is got rid of the disconnect structure that the back button can be replied normal off state immediately.

Background technology

In the power switch structure operation, except basic conducting or close the loop circuit, for effectively preventing because of electricity consumption danger such as electric wire that current overload causes cocks off, the function of automatic-closing circuit when power switch structure now also has current overload.

TaiWan, China patent M254716 number " disconnect structure ", utilize the depression bar and the start of pull bar guiding bimetal leaf that articulate with button, be connected in the elastomer of depression bar, make contact of two silver tipped contacts or separation with conducting or loop circuit, pass, there are the external force that to get rid of or weight to put on button and when overload takes place, bimetal leaf Yin Wendu rises and produces and be bent upwards, and adjust the function that piece and bend shape shrapnel reach the location with the set V groove in side, to close the loop circuit, after external force or weight eliminating, utilize elastomeric reaction force to promote depression bar, make button automatically revert to the loop closed condition.

Though can reaching, early stage utility model suppresses the function that opens circuit, but its internal structure, assembly and manufacture process are loaded down with trivial details, in assembling process, also increase many steps, and bimetal leaf when contacting with bend shape shrapnel temperature be vulnerable to influence, and then influence the physical characteristic of bimetal leaf, therefore at the purpose of locate mode after the overload and saving processing procedure operation, existing or above-mentioned disconnect structure still needs to do further improvement.

The utility model content

The purpose of this utility model is, existence at present various situations and problem, by a kind of disconnect structure is provided, make the disconnect structure, not only has functions such as suppressing the back button reinstatement of opening circuit, after simplified assembly and processing procedure operation, also can reach the better positioning function of bimetal leaf.

The utility model is to adopt following technological means to realize:

A kind of disconnect structure, it comprises: housing, lid, button; The top of described housing is provided with opening, and inside is provided with elastomer draw-in groove, arc clip, and the lower end is provided with the terminal draw-in groove; Described lid is arranged at the housing side; Described button is arranged at the opening of housing top, and the below is provided with flange; Below button, be provided with indicator light; Flange below described button is provided with pull bar, and the lower end is provided with the pull bar flange; Flange below the button is provided with depression bar, and it is provided with the elastomer trip, and the lower end is the depression bar bending place; Elastomer, an end are arranged on the elastomer trip of described depression bar, and the other end is arranged on the elastomer draw-in groove; Terminal draw-in groove in the left side is provided with normally closed terminal; Terminal draw-in groove in central authorities is provided with Chang Kaiduan, and front end is set silver tipped contact; Be provided with common terminal in the terminal draw-in groove on right side, its front end connects the rear end of bimetal leaf; Also be provided with bimetal leaf, front end is set silver tipped contact on, and the stage casing is provided with the dish-type flange, and its rear end connects the common terminal front end.

The utility model disconnect structure compared with prior art, has following remarkable advantages and beneficial effect:

The utility model disconnect structure, its button is arranged at housing top opening, depression bar and pull bar are articulated in the flange of button below, elastomer one end is arranged at the elastomer draw-in groove, the other end is arranged at the elastomer trip of depression bar, the depression bar bending place contacts with bimetal leaf, the bimetal leaf stage casing is provided with the dish-type flange, the rear end connects common terminal, front end is set silver tipped contact, and following silver tipped contact is embedded at Chang Kaiduan, the button front end is imposed the external force that presses down, depression bar makes bimetal leaf curved downwards, simultaneously depression bar also is subjected to the arc clip guiding of enclosure interior and moves right and elastomer is compressed, and silver tipped contact contacts with following silver tipped contact on this moment, formation conducting loop, when current overload rises the bimetal leaf temperature and when being bent upwards, last silver tipped contact separates with following silver tipped contact, utilizes the physical characteristic of bimetal leaf and the active force that dish-type flange inverse change is produced, and depression bar is upwards pushed away, and along with guiding of arc clip and elastomeric reaction force, allowing button reply is the off state of not pushing; If the button front end is subjected to the external force that presses down that weight maybe can't get rid of, the bimetal leaf temperature rises, also can utilize the physical characteristic of bimetal leaf and the active force that dish-type flange inverse change is produced, make depression bar move and make the elastomer compression to upper right, and the dish-type flange of bimetal leaf has been finished the positioning function of inverse change, when to weight or press down and to make button reply off state when external force is got rid of for not pushing, need not to use the V groove of prior art to adjust piece and bend shape shrapnel, also can finish the bimetal leaf location after opening circuit, and then simplified assembly and processing procedure operation, reach the purpose that reduces production costs.

Description of drawings

Fig. 1 is the stereogram of the utility model structure;

Fig. 2 is the three-dimensional exploded view of the utility model structure;

Fig. 3 is the conducting operation chart of the utility model structure;

Fig. 4 is overload, the open-circuit operation schematic diagram of the utility model structure;

Fig. 5 is external force compacting, the overload operation chart of the utility model structure.

Embodiment

Below in conjunction with accompanying drawing specific embodiment of the utility model is illustrated:

Below, adopt preferred embodiment now with regard to structure function of the present utility model, cooperate graphic detailed description after, in order to do increasing to understanding of the present utility model; The utility model is a kind of disconnect structure, see also Fig. 1～shown in Figure 5, mainly comprise housing 1, lid 11, knob 2, elastomer 3, depression bar 4, pull bar 42, bimetal leaf 5, common terminal 51, go up silver tipped contact 52, following silver tipped contact 53, Chang Kaiduan 54, normally closed terminal 55 and indicator light 6, wherein:

Cooperate icon to describe the position that concerns of each assembly in detail, housing 1 is installed with opening 100 with button 2 above articulating at end face, button 2 belows are provided with indicator light 6, elastomer draw-in groove 102 is provided with elastomer 3, housing 1 lower end is a several terminals draw-in groove 103, card is established common terminal 51, Chang Kaiduan 54 and normally closed terminal 55 in regular turn from right to left, and depression bar 4 and pull bar 42 its upper ends are articulated in the flange 201 that the button front end is extended; The front end of bimetal leaf 5 is set silver tipped contact 52, the stage casing is provided with dish-type flange 501, the rear end is connected with common terminal 51, following silver tipped contact 53 is embedded in Chang Kaiduan 54, elastomer 3 one ends are arranged on elastomer draw-in groove 102, the other end is arranged at the elastomer trip 401 of depression bar 4, and the shift position of depression bar 4 is subject to the arc clip 101 of enclosure interior, and depression bar 4 is subjected to the reaction force of elastomer 3, make depression bar bending place 402 be contacted with bimetal leaf 5, the front end groove 503 and the pull bar groove fit of bimetal leaf 5, lid 11 is installed in housing 1 side.

See also as shown in Figures 2 and 3, button 2 is imposed external force presses down its forward end in the front end of button 2, depression bar 4 is subjected to 101 guiding of arc clip, depression bar 4 moves down to the right and elastomer 3 compressions, bimetal leaf 5 is bent downwardly, silver tipped contact 52 contacts with following silver tipped contact 53 on this moment, makes the loop be conducting state.

See also as Fig. 2 and shown in Figure 4, button 2 is imposed external force presses down it in the rear end of button 2 to the back-end, the front end of button 2 rises, depression bar 4 and pull bar 42 are moved up in the lump, and pull bar flange 422 drives bimetal leaf 5 and is bent upwards, silver tipped contact 52 and following silver tipped contact 53 are contact condition not on this moment, and the loop is not on-state; And for example shown in Figure 3, when loop during in conducting state, the situation of overload takes place, its common terminal 51 temperature raise, reception and registration causes bimetal leaf 5, and bimetal leaf 5 is because of being provided with dish-type flange 501, it is subjected to that temperature raises and during back-flexing, last silver tipped contact 52 and following silver tipped contact 53 are contact condition not, and dish-type flange 501 is inverse change, utilizes the physical characteristic of bimetal leaf 5 and the active force that dish-type flange 501 moment inverse change is produced, make depression bar 4 upwards raise, and depression bar 4 is subjected to the reaction force of arc clip 101 guiding and elastomer 3 and moves to upper left, promotes button 2, make button 2 involutions in the loop state of conducting not.

See also as Fig. 2 and shown in Figure 5, the front end of button 2, when being subjected to weight and maybe can't getting rid of the external force of holding, button 2 can't involution in the loop state of conducting not, when the situation of overload takes place, bimetal leaf 5 is because of temperature rising back-flexing, silver tipped contact 52 can't be contacted with following silver tipped contact 53, utilize the physical characteristic of bimetal leaf 5 and the active force that dish-type flange 501 moment inverse change is produced, depression bar 4 is raised to upper right, elastomer 3 is compressed simultaneously, and after the external force that continues to press down removed, depression bar 4 was subjected to arc clip 101 reaction forces spacing and elastomer 3 and moves to upper left, and bimetal leaf 5 reaches positioning function because of the inverse change of dish-type flange 501, after the external force that presses down is removed, button 2 be able to involution in the loop state of conducting not, reach the function of suppressing overload protection; But present embodiment only is a preferable enforcement example of the present utility model, when can not with as limiting the scope that the utility model is implemented, all equalizations of being done according to the utility model claim change or modify, and must belong in the scope that the utility model patent contains.

Claims

1, a kind of disconnect structure, it comprises: housing, lid, button; It is characterized in that:

The top of described housing is provided with opening, and inside is provided with elastomer draw-in groove, arc clip, and the lower end is provided with the terminal draw-in groove;

Described lid is arranged at the housing side;

Described button is arranged at the opening of housing top, and the below is provided with flange;

Below button, be provided with indicator light;

Flange below described button is provided with pull bar, and the lower end is provided with the pull bar flange;

Flange below the button is provided with depression bar, and it is provided with the elastomer trip, and the lower end is the depression bar bending place;

Elastomer, an end are arranged on the elastomer trip of described depression bar, and the other end is arranged on the elastomer draw-in groove;

Terminal draw-in groove in the left side is provided with normally closed terminal;

Terminal draw-in groove in central authorities is provided with Chang Kaiduan, and front end is set silver tipped contact;

Be provided with common terminal in the terminal draw-in groove on right side, its front end connects the rear end of bimetal leaf;

Also be provided with bimetal leaf, front end is set silver tipped contact on, and the stage casing is provided with the dish-type flange, and its rear end connects the common terminal front end.