CN2617020Y - Micro switch - Google Patents

Abstract

The utility model discloses a miniature switch which facilitates assembling and manufacturing, which enables a first current-carrying part and a first current-carrying terminal of the elastic element to extend into the first contact part of an ingathering chamber and keep the state of contacting, and makes the second current-carrying part, under the downward pressure imposed by the pressing part arranged on the corresponding position of the button, to move downward, contact the second current-carrying terminal and extend to the second contact part of the ingathering chamber by forming a jointing part between the first current-carrying part and the second current-carrying part of the elastic element which are used to switch on/off the electric contact and arranging a set of locating parts used to joint the elastic elements on the groove against the jointing part of the button so as to form a miniature switch facilitating assembly.

Description

Microswitch

Technical field

The utility model relates to a kind of microswitch, and particularly a kind of have two direction of operating and carry out the microswitch that the electric contact ON/OFF is used.

Background technology

The microswitch of two direction of operating in the known microswitch (Micro Switch) is as electric contact ON/OFF mode, be to utilize terminal to have from outstanding first and second conductive part that is provided with of the subtend wall of this receiving room, this first conductive part when free state and the first movable contact site of this coil spring be contactless state, depress the operating portion of this button during by switch motion, make this coil spring move and contact with its first movable contact site, the second movable contact site of this second conductive part and this coil spring is often kept contact condition, and cause button skew or dropping situations to take place by avoiding button to be caused to press on the coil spring elastic force in answer free state after the switch motion, this button has first brake component that extends from this fulcrum shaft and carries out button carries out this button from the position that its fulcrum shaft leaves location, this main body then has second brake component that is formed at this main body, this second brake component contacts with first brake component of this button that rotates towards closing direction because of the pressurization of this coil spring, and the location of position when carrying out the button free state.

Yet, aforementioned locate mode is just very small because of the volume of this microswitch own on making, remove to set up brake component again, actual strength deficiency not only, and making precision is difficult to accurately reach especially, with regard to product actual production qualification rate and Yan Bujia, and in the assembling also because of precision control is not easy, can increase assembling man-hour on the contrary.

In addition, if it is not good to make precision, and because coil spring is because of pressing down the long elastic fatigue phenomenon that causes of displacement stroke, tend to cause the second movable contact site of this second conductive part and this coil spring often to keep the contact condition forfeiture, when button pressed downwards, do not produce unlatching conducting effect and influence electric contact, that is to say that this switchette has been lost and should have been pushed the conducting function, the shortening that will be affected of its available economic life.

The utility model content

Main purpose of the present utility model, be to solve above-mentioned defective, avoid the existence of this defective, the utility model provides a kind of existing small product size and need not complicated manufacturing process and precision control of need not changing, be convenient to the microswitch assembling and make, the flexible member of using by the electric contact ON/OFF first, be formed with a group connecting part between two conductive parts, and on button to sentencing the location division that a groove is provided with a winding flexible member by group connecting part, make first conductive part of this flexible member and first contact site that first conducting terminal extends to receiving room often keep contact condition, second conductive part then is subjected to the compression part of corresponding setting on the button to provide downforce to move down second contact site that contact second conducting terminal extends to receiving room, forms a microswitch that is easy to assemble like this.

Description of drawings

Fig. 1 is a profile schematic perspective view of the present utility model.

Fig. 2-1,2-2,2-3 are STRUCTURE DECOMPOSITION of the present utility model and part-structure enlarged diagram.

Fig. 3 is that Fig. 1 is in A-A position profile schematic diagram.

Fig. 4 is that Fig. 3 is in B-B position profile schematic diagram.

Fig. 5-1,5-2,5-3 are that the utility model left-hand reaches vertically to stressed action schematic diagram.

Embodiment

Relevant detailed description of the present utility model and technology contents, existing as follows with regard to accompanying drawings:

See also Fig. 1,2-1,2-2, shown in the 2-3, be the utility model profile solid and STRUCTURE DECOMPOSITION schematic diagram, as shown in the figure: the utility model includes a main body 10 that forms a receiving room 11 in inside, and the sidewall 12a of this main body 10,12b is provided with first, two conducting terminals 40,50, and dispose its fulcrum 22 is supported in main body 10 for mode free to rotate button 20 at aforementioned receiving room 11, reach one and be positioned at the forced sections 21 that button 20 belows provide pressure button 20 stressing mains 10 outer formation buttons 20 on the elastic force, and have first, two conductive parts 32,33 contact first respectively, two conducting terminals 40,50 flexible member 30, fulcrum 22 places of two sides 13 corresponding button 20 of aforementioned body 10 have a circular port 131 and one from circular port 131 extend to receiving room 11 openend 111 insert groove 132, and the sidewall 12a of the contiguous circular ports 131 of main body 10 is provided with a breach 121 that extends to receiving room 11 openends 111, and be formed with one in fulcrum 22 bottoms of button 20 and connect inclined-plane 221, make the fulcrum 22 of this button 20 be able to the flexible power that forms by breach 121 and be easy to winding circular port 131, and form a microswitch to connect inclined-plane 221.

Please consult Fig. 3 simultaneously, shown in 4, flexible member 30 of the present utility model is a coil spring, and first of this flexible member 30, two conductive parts 32,33 are formed with a group connecting part 31, and on button 20 to sentencing the location division 24 that a groove 25 is provided with a winding flexible member 30 by group connecting part 31, these 24 bottoms, location division have a straight line Restricted edge 241, make this location division 24 form non-circular, therefore, as long as earlier with the sheathed groove 25 of going into button 20 of the group connecting part 31 of flexible member 30, and effectively avoid button 20 to shake shift phenomenon by the swing offset that location division 24 provides group connecting part 31 can not produce when pushing for non-circular design producing, utilize button 20 of the present utility model again when assembling, the width that is the fulcrum 22 of definition button 20 is w2, the width that connects inclined-plane 221 is w1, and the width of inserting groove 132 is w3, then its sizes related pass is w2＞w3＞w1, therefore, the utility model is to be introduced into and to insert groove 132 by connecting inclined-plane 221, because breach 121 designs make the groove 132 of inserting of openend 111 have flexible power extension characteristic, and connect inclined-plane 221 and be certain gradient, in the time of can allowing button 20 move down into fulcrum 22 to enter circular port 131, do not need any instrument auxiliary, also can not destroy the framework of main body 10, and after fulcrum 22 enters circular port 131, because of the width w2 of fulcrum 22 greater than the width w3 that inserts groove 132, produce so do not have button 20 break-offs; In addition, for further strengthening the locating effect of the fulcrum 22 of button 20, another sidewall 12b of these main body 10 relative breach 121 is provided with a restrictions 122, and should restrictions 122 be extended with a top part 23 in 20 pairs on button, this top part 23 includes a face of inserting 231 and a support surface 232, move down with button 20 equally, insert face 231 and be similarly angle of inclination design, after top part 23 entered restrictions 122, its support surface 232 was restricted 122 upper wall surface backstop and improved the locating effect of button 20 more under button 20 free states.

The just electric contact ON/OFF user mode explanation after the assembling, see also Fig. 5-1, shown in the 5-2, the utility model is often kept contact condition because of first contact site 41 that first conductive part 32 and first conducting terminal 40 of this flexible member 30 extends to receiving room 11,33 of second conductive parts are subjected to the compression part 26 of corresponding setting on the button 20 to provide downforce to move down second contact site, the 51 formation electric contact conducting states that contact second conducting terminal 50 extends to receiving room 11, and be to guarantee first of flexible member 30, two conductive parts 32,33 and first, two conducting terminals 40,50 keep contact condition after button 20 presses down, first of flexible member 30 of the present utility model, two conductive parts 32,33 tail ends further are bent with one first, two power connection ends 321,331, make it can not have only the contact of most advanced and sophisticated point, and guarantee to contact the electric contact conducting with line face contact form.

Fig. 5-3 discloses the button 20 stressed situations that reach the stroke minimum point, from then on two figure compare with Fig. 3, can find out obviously that button 20 is not because of being subjected to any obstruction and restriction, fulcrum 22 can freely rotate fully, allow the forced section 21 of button 20 enter receiving room 11 fully, and reach long stroke design.

Because flexible member 30 of the present utility model, button 20 all do not need instrument can insert receiving room 11 and main body 10 assemblings easily, not only structure is more simplified, more not can because of microswitch too miniaturization cause and make the assembling difficulty, therefore microswitch of the present utility model is easy to assembling really and makes.

Although the utility model is illustrated with reference to accompanying drawing and preferred embodiment,, above embodiment only is exemplary, for the person of ordinary skill of the art, the utility model can have various changes and variation.Various change of the present utility model, variation and equivalent are contained by the content of appending claims.

Claims (6)

1. microswitch, include a main body (10) that forms a receiving room (11) in inside, and the sidewall of described main body (10) is provided with first, two conducting terminals (40,50), and dispose its fulcrum (22) for be supported on the button (20) of described main body (10) in mode free to rotate at described receiving room (11), reach one and be positioned at the forced section (21) that described button (20) below provides the outstanding outer described button of formation of described main body (10) of the described button of pressure (20) (20) on the elastic force, and have first, two conductive parts (32,33) contact described first respectively, two conducting terminals (40,50) flexible member (30) is characterized in that:

Described first of described flexible member (30), two conductive parts (32,33) be formed with a group connecting part (31) between, and go up corresponding described group connecting part (31) at described button (20) and sentence the location division (24) that a groove (25) is provided with the described flexible member of a winding (30), described first conductive part (32) of described flexible member (30) is often kept contact condition with first contact site (41) that described first conducting terminal (40) extends to described receiving room (11), and described second conductive part (33) then is subjected to described button (20) to go up the corresponding compression part (26) that is provided with provides downforce to move down second contact site (51) that described second conducting terminal of contact (50) extends to described receiving room (11).

2. microswitch according to claim 1, it is characterized in that, the described fulcrum (22) of the corresponding described buttons in the two sides of described main body (10) (20) locate to be provided with a circular port (131) and one from described circular port (131) extend to described receiving room (11) openend (111) insert groove (132), and the sidewall of the contiguous described circular port of described main body (10) (131) is provided with a breach (121) that extends to the described openend (111) of described receiving room (11), and is formed with one in described fulcrum (22) bottom of described button (20) and connects inclined-plane (221).

3. microswitch according to claim 2, it is characterized in that, the opposite side wall of the described relatively breach of described main body (10) (121) is provided with a restrictions (122), and being extended with a top part (23) in the corresponding described restrictions of described button (20) (122), described top part (23) includes a face of inserting (231) and a support surface (232).

4. microswitch according to claim 1 is characterized in that, bottom, described location division (24) has a straight line Restricted edge (241), and it is non-circular that described location division (241) is formed.

5. microswitch according to claim 1 is characterized in that, described first and second conductive part (32,33) tail end of described flexible member (30) further is bent with first and second power connection end (321,331).

6. microswitch according to claim 1 is characterized in that, described flexible member (30) is a coil spring.

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