CN2417554Y - Touching type switch - Google Patents

Abstract

The utility model relates to a touching type switch, which comprises an insulating shell body, a plurality of conductive terminals arranged in the insulating shell body, a key, a contact element, etc., wherein, the insulating shell body is provided with a containing groove, wherein, one side of which is provided with an opening. The key is arranged in the containing groove through the opening and the contact element is arranged on one side of the key, which is toward the bottom of the containing groove. The conductive terminals are arranged in the containing groove. Each terminal is provided with a contact part which is higher than the bottom of the containing groove and a connecting part which is penetrated out of the insulating shell body. In addition, distances between the contact parts of the terminals and the contact elements are equal. Thus, the contact elements and a plurality of conductive terminals can be simultaneously contacted and conducted or be simultaneously separated and an adverse effect of a contact time difference can be prevented.

Description

Touch switch

The relevant a kind of touch switch of the utility model relates in particular to a kind of actuating type telecommunication switch that is applied in the mobile phone.

Actuating type telecommunication switch is usually used in the electronic apparatuss such as remote controller of mobile phone and all kinds of household electrical appliance, and it is by the instantaneous actuating type contact conducting between the conducting terminal of touch switch, and realizes specific telecommunication laser propagation effect.Relevant prior art can be consulted United States Patent (USP) the 5th, 245,147 and 5,313, case such as No. 027, as shown in Figure 1, it has disclosed a kind of touch switch 8 of pushing shake-up vertically, the dome conductive foil 82 of circle that this touch switch 8 is provided with button 81 from top to bottom, connect with button 81 ends 811 and be separated by several pieces conducting terminals 83 of suitable distance of this conductive foil 82.When pushing this button 81, conductive foil 82 is subjected to the pushing of button and moves and touch the conducting terminal 831 of both sides and the telecommunication conducting towards the direction near conducting terminal 83, and the dome position 821 of conductive foil 82 is towards the conducting terminal 832 direction generation strains of central position under pressure, and the final conducting that contacts with this conducting terminal 832.Yet this type of axially pushes the structure of shake-up, must move for button 81 at the activity space of the default suitable size of vertical direction, and causes the height dimension of touch switch bigger, is unfavorable for the Bao Xiaohua design of miniature electronic utensils such as mobile phone or remote controller.And, in this existing structure conductive foil 82 earlier with the conducting terminal conducting of both sides after again with the conducting terminal conducting of centre, this process has contact time difference, this contact time difference can cause adverse effect to signal under certain situation.

In addition, United States Patent (USP) the 5th, 660, No. 272 case has disclosed the telecommunication switch 9 that a kind of lateral press touches, as shown in Figure 2, wherein button 91 is roughly inverted right-angled trapezium, and its end 911 that extends to touch switch inside is the inclined-plane setting, at this place, end 911 inclined-plane one elastic component 92 is set, distance is respectively arranged with a conductive foil 93 and several pieces conducting terminals 94 and be separated by suitably below elastic component 92.When pushing this button 91, the elastic arm 921 of described elastic component 92 is subjected to the pushing on the terminal inclined-plane 911 of button and is out of shape mobilely, and is pressed on the conductive foil 93 and makes its conducting that contacts with the conducting terminal 94 of below.Yet, the conduction mode that contacts in this existing structure between conductive foil and conducting terminal is still axial push in fact and touches mode, on the touch switch short transverse, still must preset suitable space and move, thereby still can't solve the problem of touch switch excessive height for the elastic arm of elastic component.And this existing touch switch will just be reached the shake-up effect via transmission process repeatedly, causes its component number too much and complex structure, and especially this elastic component complex structure is difficult for making, and is unfavorable for simplifying processing procedure and reduces cost.

The purpose of this utility model is to provide a kind of height dimension less and be beneficial to the touch switch of the thin littleization design of electronic apparatus, conducting simultaneously or open circuit simultaneously between a plurality of conducting terminals of this touch switch, and can avoid the contact time difference influence, and its component number is less, and each component construction simple, easy to manufacture and be convenient to the assembling, can effectively simplify the processing procedure of touch switch, reduce product cost.

The purpose of this utility model is achieved in that touch switch includes insulation shell, is located at several conducting terminals, button and contact element etc. in the insulation shell, wherein insulation shell is provided with accepting groove, this accepting groove one side is provided with opening, button comprises press section and movable part, its movable part places accepting groove, and can be in the suitable displacement of moving of accepting groove cathetus, and its side towards the accepting groove bottom be provided with contact element.In addition, conducting terminal also is located in this accepting groove, each terminal all has the contact site and the extension that exceed accepting groove bottom and passes the outer junction surface of insulation shell, and the minimum range along the button moving direction equates between the contact site of these terminals and the above-mentioned contact element.So, drive contact element by button and move and contact, make and realize contacting simultaneously conducting between a plurality of conducting terminals or separate the effect that opens circuit simultaneously, and effectively avoid the harmful effect of contact time difference the signal transmission with the contact site of conducting terminal.

According to above-mentioned feature, opposite side with respect to opening in the accepting groove of insulation shell also is provided with flexible member, this flexible member and button end profile are inconsistent, and an elastic force is provided and makes the button contact element on it and conducting terminal when being not pressed keep certain distance and be in off state.

Compared with prior art, the utility model can effectively be eliminated the harmful effect of contact time difference to signal transmission, and its component number is less and simple structure, easy to manufacture and be convenient to assembling, and can simplify the processing procedure of product, reduces product cost.

The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.

Fig. 1 is a kind of cross-sectional schematic of existing touch switch.

Fig. 2 is the cross-sectional schematic of another kind of existing touch switch.

Fig. 3 is a three-dimensional exploded view of the present utility model.

Fig. 4 is the three-dimensional combination figure of subelement of the present utility model.

Fig. 5 is a three-dimensional combination figure of the present utility model.

Fig. 6 to Fig. 8 is that contact element of the present utility model contacts the continuous cross-sectional schematic of turn on process with conducting terminal.

Please refer to Fig. 3, Fig. 4 and shown in Figure 5, the utility model touch switch includes structures such as insulation shell 1, plurality of conductive terminals 2, button 3, contact element 4, flexible member 5 and lid 6, wherein insulation shell 1 is roughly a square body, it is provided with accepting groove 10, this accepting groove 10 is surrounded by bottom 11 and sidewall 121,122 and is formed, wherein the first side wall 121 is provided with square aperture 13, then respectively convex with a fin 14 near second sidewall, 122 places, form a pair of draw-in groove 15 at fin 14 and 122 of second sidewalls.Two ends, second sidewall, 122 outside respectively are concaved with a button and hold seat 16, hold sheet 61 assembling buttons for the button of lid 6 and hold, and another oppose side wall outside between first and second sidewall 121,122 then respectively is provided with the lateral plate 62 of concave surface 17 to hold lid 6.In addition, conducting terminal 2 is arranged on the one injection molding method in the bottom 11 of insulation shell 1 accepting groove 10, and these terminals 2 all have and exceed accepting groove 10 bottoms 11 and be the contact site 21 that common straight line is arranged, and extends and pass the outer junction surface 22 of insulation shell 1.

Please continue with reference to Fig. 3 to Fig. 5, button 3 includes the press section 31 that the opening 13 from accepting groove 10 extends through and is contained in movable part 32 in this accepting groove 10, wherein movable part 32 is a rectangular body, press section 31 then protrudes out formation from the one side, and press section 31 is the different scalariform setting of size with 32 of movable parts.Press section 31 has the press surface 311 of protrusion outside accepting groove 10, for the operator to the button application of force, and movable part 32 near offer on the bottom sides 33 of accepting groove 10 bottoms 11 caulking groove 34 with contact element 4 tablings.In addition, contact element 4 is the sheet metal configuration that a cross section slightly takes the shape of the letter U, and it comprises contact chip 41 and the tabling piece 42 that is bent to form by these contact chip 41 both sides, and this tabling piece 42 embeds in the caulking groove 34 of buttons 3 and contact element 4 and button are combined as a whole.

As shown in Figure 4, flexible member 5 is arranged on end profile 321 places of button 3 with respect to press surface 311, with provide one with act on the reverse elastic force of positive pressure on the press surface 311, and its contact element 4 keeps certain distances and is off state with conducting terminal 2 when button 3 is not pressed.In the present embodiment, this flexible member 5 is a leaf spring sheet, its group places draw-in groove 15 places of aforementioned dielectric housing 1 accepting groove 10, it is provided with the bending elastic portion 51 that offsets with button 3 end profile 321, and is contained in the location division 52 in the described draw-in groove 15 by the 51 two ends extension of bending elastic portion.In addition, please be simultaneously with reference to Fig. 1 and Fig. 5, lid 6 covers insulation shell 1 accepting groove 10 tops, thereby forms a receiving space 63, button 3 and contact element 4 are held wherein and is located.

Please cooperate with reference to Fig. 6, Fig. 7 and Fig. 8, button 3 is subjected to before the positive pressure, because the resilient force of flexible member 5 is at end profile 321 places of button 3, make this button 3 have the trend that withdraws from accepting groove 10, and closely be resisted against the first side wall 121 places, and the contact element 4 on button 3 bottom sides 33 does not contact at a distance of certain distance with the contact site 21 of conducting terminal 2, and, because the contact site 21 of aforementioned a plurality of conducting terminals 2 is common straight line perpendicular to button 3 moving directions and arranges, make that the air line distance along button 3 moving directions equates between this contact element 4 and these contact sites 21.When button 3 is subjected to positive pressure, it will be parallel to insulation shell 1 bottom 11 and move in accepting groove 10, and after certain displacement, the contact element 4 on button 3 bottom sides 33 touches the contact site 21 of conducting terminal 2 simultaneously, and the signal of 2 of these conducting terminals of conducting.Button 3 continuation are moved and are finally replaced in the outside of insulation shell 1 the first side wall 121 and stop, contact element 4 contacted and was beneficial to the telecommunication transmission with 21 formation of the contact site larger area of conducting terminal 2 this moment, and blocking the location and enough big contact retention can be provided by means of accepting groove 10 top lids 6.

In the above-mentioned touch switch structure, contact element 4 is to form with conducting terminal 2 along button 3 moving directions to contact conducting, therefore can overcome in the existing axial way of contact and must preset the defective in axial displacement space, reduces the whole height of touch switch.And the contact site 21 of each conducting terminal 2 to the minimum range of contact element 4 equates, makes can to contact simultaneously or separate simultaneously between contact element 4 and these contact sites 21, thereby eliminates the influence of contact time difference to telecommunication.Simultaneously, the component number that touch switch comprised is less, and its contact element 4 and flexible member 5 are simple in structure, is easy to make, and helps simplifying processing procedure and reduce cost.

Claims (8)

1. a touch switch comprises insulation shell, plurality of conductive terminals, button and contact element, and wherein insulation shell is provided with the accepting groove of bottom of tool at least and sidewall, is provided with opening at a sidewall of accepting groove; Conducting terminal is arranged in the above-mentioned accepting groove, and each terminal all has the contact site and the extension of protruding the accepting groove bottom and passes the outer junction surface of insulation shell; And button comprises press section and movable part, it is characterized in that: movable part is housed in the accepting groove, move in accepting groove along being parallel to the accepting groove bottom direction, contact element is arranged on the side of button movable part near the accepting groove bottom, distance between the contact site of this contact element and above-mentioned conducting terminal equates, and its move with button and simultaneously with contact conducting or separate simultaneously and open circuit of conducting terminal, and the opposite side with respect to opening is provided with flexible member in this accepting groove, and the end profile of this flexible member and button movable part offsets.

2. touch switch according to claim 1 is characterized in that: this flexible member is a leaf spring sheet, the spacer that it includes the bending elastic portion and is extended to form by bending elastic portion two ends.

3. touch switch according to claim 2 is characterized in that: be provided with a pair of fin near another sidewall with respect to opening in accepting groove, form the draw-in groove of the spacer that holds the leaf spring sheet between fin and this sidewall.

4. touch switch according to claim 1 is characterized in that: the movable part of button is a rectangular body, and the press section is to be protruded out by the one side to form, and is the different scalariform setting of size between press section and the movable part.

5. according to claim 1 or 4 described touch switchs, it is characterized in that: on the bottom side of movable part near the accepting groove bottom of button, offer caulking groove.

6. touch switch according to claim 5 is characterized in that: contact element is the sheet metal configuration that a cross section slightly takes the shape of the letter U, it comprise contact chip and be bent to form in these contact chip both sides with the tabling piece of aforementioned caulking groove combination.

7. touch switch according to claim 6 is characterized in that: the contact site of conducting terminal is perpendicular to the common straight line of button moving direction arranges.

8. touch switch according to claim 1 is characterized in that: the accepting groove upper set at insulation shell is provided with lid, and itself and insulation shell form receiving space jointly.

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