CN2587049Y - Touching switch - Google Patents

Abstract

The utility model relates to a touch switch. The utility model comprises an insulating shell body, a plurality of conductive terminals which are assembled on the bottom of the insulating shell body, a press key, an elastic arm which is butted with the press key, an elastic body which is butted with the elastic arm, an insulating body which is arranged on one side of the elastic body, and a conduction body which is arranged on the lower surface of the insulating body. While in use, the press key is butted with the elastic arm, the elastic body is deformed, the conduction body downwards moves and contacts with the conductive terminals, and then the on-off function is realized. The lower surface of the elastic body is provided with the insulating body, and the conduction body is arranged on the lower side of the insulating body. On one hand, the utility model can ensure that the conduction body has no elastic deformation in on-off action to prevent the metal fatigue which is caused by the deformation of the conduction body and the failure of the integral function of the touch switch; on the other hand, the utility model can reduce the deformation of the elastic body, which is favorable for shortening the response time of the touch switch.

Description

Touch switch

[technical field]

The utility model relates to a kind of touch switch.

[background technology]

The prior art relevant with the utility model can be consulted the United States Patent (USP) the 5th of bulletin on August 26th, 1997,660, No. 272, the telecommunication switch that this patent disclosed comprises a button, with the elastic component that button offsets, electroconductive elastic sheet and some conducting terminals of being located on the described telecommunication switch case.During use, activate button and support elastic component, compress thereby elastic component moves down that electroconductive elastic sheet makes the electroconductive elastic sheet distortion and the conducting that contacts with conducting terminal with its below.Yet because electroconductive elastic sheet when activating strain need take place, after repeatedly pushing, metal fatigue can take place and this telecommunication switch allomeric function was lost efficacy in electroconductive elastic sheet.Moreover distance is excessive between above-mentioned electroconductive elastic sheet and the conducting terminal, so electroconductive elastic sheet in course of action bigger distortion can take place, and this can make the electronic installation reaction time of using this telecommunication switch long and be unfavorable for operation readiness.

[utility model content]

The purpose of this utility model is to provide a kind of simple in structure, dependable performance and can shortens the touch switch in electronic installation reaction time.

The purpose of this utility model is achieved through the following technical solutions: the elastic arm that the utility model touch switch comprises insulation shell, be mounted on the plurality of conductive terminals, button of insulation shell bottom, support with button, with the elastomer and the conducting body of elastic arm butt, wherein the elastomer top is provided with a pressure contact portion, and the pressure contact portion below is provided with an insulator, and the conducting body is located at the insulator below.

Compared with prior art, the utility model is by being provided with an insulator at the elastomer lower surface, then the conducting body is located at the insulator downside, can guarantee that on the one hand the conducting body strain does not take place and prevent to lose efficacy because of conducting body deformability generation metal fatigue makes this touch switch allomeric function in switch motion, can reduce elastomeric deflection on the other hand and be beneficial to the reaction time that shortens touch switch.

[description of drawings]

Fig. 1 is a three-dimensional combination figure of the present utility model.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 is a cross-sectional schematic of the present utility model.

[embodiment]

Please refer to Fig. 1, Fig. 2 and shown in Figure 3, the utility model touch switch includes insulation shell 1, plurality of conductive terminals 2, button 3, insulator 4, conducting body 5, elastomer 6, lid 7 etc.Wherein insulation shell 1 is roughly a square body, comprises antetheca 10, rear wall 100, sidewall 11 and diapire 13, and above-mentioned antetheca 10, rear wall 100, sidewall 11 and diapire 13 are enclosed to form an accepting groove 12.In addition, described front and back walls 10,100 mid portions are provided with opening 14, and side direction accepting groove 12 inner extensions are arranged with two side direction boss 15 in the sidewall 11, and diapire 13 both sides of accepting groove 12 are provided with two bottom boss 16 to upper process.Be concaved with button at insulation shell 1 antetheca 10 and hold groove 17.In addition, conducting terminal 2 is arranged in the diapire 13 of insulation shell 1, comprise contact site 20 and weld part 21, described contact site 20 protrudes the diapire 13 of accepting groove 12 and is relatively arranges, and weld part 21 stretches out insulation shell 1 to weld mutually with electronic device circuit plate (not shown).In the present embodiment, conducting terminal 2 is to be integrally formed in the insulation shell 1.

Button 3 comprises and is located at the outer press section 30 of insulation shell 1 and is contained in movable part 31 in the accepting groove 12, this movable part 31 comprises support portion 32, be located at the fluting 33 of support portion 32 1 sides and be located at the pressure section 34 of fluting 33 1 ends, and wherein pressure section 34 is the inclined-plane setting.

Elastomer 6 comprises the pressure contact portion 60 of being located at the top and the base 61 of extending around pressure contact portion 60.

Lid 7 comprises that a top cover 70, the elastic arm 71 that extends from top cover 70 1 sides reach the buckle 72 that vertically bends setting from top cover 70 relative opposite sides.Described elastic arm 71 comprises with the connecting portion 710 of top cover 70 almost parallels and from the connecting portion 710 terminal circular-arc auxiliary sections 711 that bend.

In the present embodiment, insulator 4, conducting body 5 are a round sheet body, and the pressure contact portion 60 of size, shape and elastomer 6 is identical.

During assembling, earlier insulator 4 is adhered to elastomer 6 pressure contact portions 60 lower surfaces, then again conducting body 5 is adhered to elastomer 6 lower surfaces.6 groups on the elastomer that will be stained with insulator 4, conducting body 5 thereafter is located in the accepting groove 12 of insulation shell 1, and wherein the edge on elastomer 6 bases 61 is erected on the two bottom boss 16 of diapire 13.Then button 3 is placed in the insulation shell 1, insulation shell 1 is protruded from the opening 14 of the housing 1 that insulate in press section 30 wherein again, and support portion 32 is erected on the side direction boss 15 of insulation shell 1.At last lid 7 is mounted on the insulation shell 1, wherein buckle 72 is held groove 17 with the button of insulation shell 1 antetheca 10 and is held mutually and lid is located on the insulation shell 1 for 7 groups.The elastic arm 71 of lid 7 stretches in the fluting 33 of button 3, and wherein arm portions 710 terminal pressure contact portions 60 with elastomer 6 connect, and auxiliary section 711 connects with pressure section 34.

During use, compress the press section 30 of button 3 and make pressure section 34 compress the auxiliary section 711 of elastic arm 71, make the connecting portion 710 of elastic arm 71 move down thus, further make elastomer 6 distortion and conducting body 5 is moved down with the contact site 20 of conducting terminal 2 contact, realize switching function thus.

In the above-described embodiment, only strain takes place in elastomer 6, and insulator 4 with conducting body 5 strain does not take place, therefore can overcome prior art and because of conducting body 5 defective that metal fatigue makes this touch switch allomeric function lose efficacy take place.Secondly, the pressure contact portion 60 of elastomer 6 is plane contact with the connecting portion 711 on lid 7 elastic arms 71, the insulator 4 that is attached on arch elastomer 6 pressure contact portions 60 can be moved both vertically in a horizontal manner with conducting body 5, can guarantee contact site 20 contacts of conductings simultaneously of conducting body 5 and conducting terminal 2 thus or separate simultaneously, therefore can overcome in the prior art because of adopting the cambered surface contact to cause switch terminal not contact the time difference defective that produces simultaneously.Moreover the utility model is set up an insulator 4 between conducting body 5 and elastomer 6, can make elastomer 6 that less strain takes place thus and just can make conducting body 5 contact with conducting terminal 2, shortens the reaction time of electronic installation thus; In addition, conducting body 5 can obtain by simple shear with a metal film or sheet metal, need through as the necessary stamping procedure of prior art etc., the utility model is simple in structure and be convenient to make and assemble thus.

In the present embodiment, elastic arm 71 is to be combined as a whole with lid 7, and really elastic arm also can be made as an independent member.

Claims (8)

1. touch switch, the elastic arm that comprise insulation shell, be mounted on the plurality of conductive terminals, button of insulation shell bottom, supports with button, with the elastomer and the conducting body of elastic arm butt, wherein the elastomer top is provided with a pressure contact portion, it is characterized in that: the pressure contact portion below is provided with an insulator, and the conducting body is located at the insulator below.

2. touch switch according to claim 1 is characterized in that: insulator and conducting body are plates.

3. touch switch according to claim 2 is characterized in that: insulator and conducting body are identical with elastomer pressure contact portion shape.

4. touch switch according to claim 1 is characterized in that: button comprises a movable part, and movable part is provided with a fluting, and the elastic arm is divided in the described fluting.

5. touch switch according to claim 4 is characterized in that: elastic arm comprises the arcuation auxiliary section that is the connecting portion that extends horizontal aspect and is located at the connecting portion end.

6. touch switch according to claim 5 is characterized in that: the button movable part is provided with one at the fluting end and is pressure section, this pressure section and the elastic arm auxiliary section butt that the inclined-plane is provided with.

7. touch switch according to claim 6 is characterized in that: connecting portion is terminal to connect with the elastomer pressure contact portion.

8. according to claim 3 or 7 described touch switchs, it is characterized in that: this touch switch is provided with a lid, and described elastic arm and lid are whole to be provided with.

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