CN201904251U

CN201904251U - Silent switch

Info

Publication number: CN201904251U
Application number: CN2010206861213U
Authority: CN
Inventors: 吴福喜
Original assignee: Dongguan Kaihua Electronics Co Ltd
Current assignee: Dongguan City, Yang Jiong Electronic Information Co.
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-07-20
Anticipated expiration: 2020-12-29

Abstract

The utility model discloses a silent switch. The silent switch comprises an insulation base, wherein a first accommodating cavity is formed in the insulation base; a contact piece, a flexible elastomer and a press piece are mounted in the first accommodating cavity from the bottom up; a first terminal and a second terminal are mounted in the insulation base; the contact ends of the first and the second terminals are respectively positioned at a first fixed contact and a second fixed contact at the bottom of the first accommodating cavity; a first base part of the contact piece keeps in contact with the second fixed contact; and the press piece is propped against a pressing part of the flexible elastomer. When sufficient external force is exerted on the press piece, the flexible elastomer is propped against an elastic part of the contact piece, and the elastic part is propped against the first fixed contact to conduct the first terminal and the second terminal. Therefore, when the switch is pressed, the traditional rigid collision between the press piece and the contact piece is improved to be flexible propping and pushing between the flexible elastomer and the pressed switch, as well as between the flexible elastomer and the contact piece, so that noise caused by rigid collision in the traditional technology is avoided to achieve a silent effect.

Description

No acoustic(al) switch

Technical field

The utility model relates to the switching device art, refers in particular to a kind of no acoustic(al) switch that does not in use produce noise.

Background technology

At present, gently moving switch is widely used aspect household electrical appliance because volume is little in light weight, for example: the colour TV button, the video disc player button, computer mouse or the like also can be used for controlling small-power household electrical appliance such as illuminating lamp and ventilating fan.The automatic disconnection after power failure of this electronic switch can not connected (need press control button could connect) voluntarily when sending a telegram here once more, can avoid because of electrical equipment long-term energising consume electric power or initiation contingency.

Above-mentioned touch-switch is a kind of electronic switch, presses shift knob during use gently and just can make switch connection, and switch both disconnected when unclamping hand, and stressed springing realizes break-make to its internal structure by metal clips.When pressing switch, main system directly pushes metal clips by a hard pressing piece and realizes conducting, like this, can send the collision sound of hard pressing piece and metal clips when pressing switch thereupon, and its workplace that needs are kept quite is very inapplicable.

The utility model content

In view of this, the utility model is at the disappearance of prior art existence, and its main purpose provides a kind of no acoustic(al) switch, and it does not produce noise when using.

For achieving the above object, the utility model adopts following technical scheme:

A kind of no acoustic(al) switch includes insulating base, offers first containing cavity in this insulating base, in this first containing cavity contact chip, flexible elastomer and pressing piece is installed from bottom to top;

The first terminal and second terminal are installed in this insulating base, the welding ends of this first terminal and second terminal is exposed to the below, bottom of insulating base, and, the contact jaw of this first terminal system is positioned at first fixed contact of the aforementioned first containing cavity bottom surface middle position, and the contact jaw system of this second terminal is positioned at keep to the side second fixed contact of position of the aforementioned first containing cavity bottom surface;

This contact chip is a metal material, it includes first base portion and the elastic portion with reseting elasticity that extends to form obliquely of this first base portion certainly, this first base portion keeps often contacting with aforementioned second fixed contact, and this elastic portion and aforementioned first fixed contact keep certain clearance;

This flexible elastomer is rubber or silica gel material, its include press section, second base portion and be connected in this press section and second base portion between elastic wall, this flexible elastomer is positioned at the elastic portion top of aforementioned contact chip, and its upper surface, press section is butted on the aforementioned pressing piece, and the second base portion lower surface of this flexible elastomer is butted on first base portion of aforementioned contact chip;

This pressing piece is butted on the press section of aforementioned flexible elastomer, when applying enough applied external force on aforementioned pressing piece the time, the bottom surface of the press section of aforementioned flexible elastomer is butted on the elastic portion of contact chip, and elastic portion is butted on aforementioned first fixed contact with the aforementioned the first terminal of conducting and second terminal.

As a kind of preferred version, described pressing piece has second containing cavity, in this second containing cavity light-emitting component is installed, and this light-emitting component is connected with two electrical pins, and this two electrical pin extends towards below, aforementioned dielectric seat bottom.

As a kind of preferred version, described insulating base both sides are respectively arranged with mounting groove, and two pins of aforementioned light-emitting component are corresponding to embed in this mounting groove.

As a kind of preferred version, described insulating base both sides are respectively arranged with the first button bit portion that is used for being connected with external member, and aforementioned mounting groove is opened in this first button bit portion and runs through its upper and lower end face.

As a kind of preferred version, described pressing piece is provided with the second button bit portion, correspondingly, offers draw-in groove on the aforementioned dielectric seat, and when this pressing piece was installed in first containing cavity of insulating base, this second button bit portion was stuck in this draw-in groove.

After the utility model adopted technique scheme, its beneficial effect was:

One, by between pressing piece and contact chip, adding a flexible elastomer, so, during push switch, the pressing piece and the improvement of the hard collision between the contact chip of tradition are pushed for the flexibility between aforementioned flexible elastomer and push switch and the contact chip, on the one hand, avoid the sound that brings because of hard collision in the conventional art, thereby reached noiseless effect; On the other hand, during use because aforementioned flexible elastomer and contact chip all have certain coefficient of elasticity, therefore, push downwards and the process of letting go in have better sense of touch; Moreover, between aforementioned pressing piece, flexible elastomer and the contact chip flexible contact, improve the useful life of contact chip, thereby increased the useful life of this switch, reduced use cost.

Two, each design of part of the utility model simple, easy to assembly and install firm, thereby, reduced production cost, and be easier to obtain the better products quality.

For more clearly setting forth architectural feature of the present utility model and effect, come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment.

Description of drawings

Fig. 1 is the package assembly diagrammatic sketch of the preferred embodiment of the utility model;

Fig. 2 is the exploded view of the preferred embodiment of the utility model;

Fig. 3 is the free state diagrammatic sketch of the preferred embodiment of the utility model;

Fig. 4 is the pressed state diagrammatic sketch of the preferred embodiment of the utility model.

The accompanying drawing identifier declaration:

10, insulating base 11, mounting groove

12, first containing cavity 13, the first button bit portion

14, draw-in groove 21, the first terminal

211, first fixed contact 22, second terminal

221, second fixed contact 30, contact chip

31, first base portion 32, elastic portion

40, flexible elastomer 41, press section

42, elastic wall 43, second base portion

50, pressing piece 51, second containing cavity

52, the second button bit portion 53, spacing preiection

60, light-emitting component 61, electrical pin.

Embodiment

See also Fig. 1 to shown in Figure 4, it has demonstrated the concrete structure of the preferred embodiment of the utility model, include insulating base 10, offer first containing cavity 12 in this insulating base 10, contact chip 30, flexible elastomer 40 and pressing piece 50 are installed in this first containing cavity 12 from bottom to top.

The first terminal 21 and second terminal 22 are installed in this insulating base 10, the welding ends of this first terminal 21 and second terminal 22 is exposed to the below, bottom of insulating base 10, the contact jaw system of this first terminal 21 is positioned at first fixed contact 211 of aforementioned first containing cavity, 12 bottom surface middle positions, the contact jaw of this second terminal 22 system is positioned at keep to the side second fixed contact 221 of position of aforementioned first containing cavity 12 bottom surfaces, in present embodiment, this second fixed contact 221 includes two second fixed contacts 221 that are positioned at aforementioned first fixed contact 211 both sides; And, these insulating base 10 both sides are respectively arranged with the first button bit portion 13, this first button bit portion 13 is that the integral installation that is used for this no acoustic(al) switch is fixed, in this first button bit portion 13, offer mounting groove 11 near place, aforementioned dielectric seat 10 two sides, and this mounting groove 11 runs through on this first button bit portion 13, the lower surface, this mounting groove 11 is opened in the first button bit portion 13 dexterously, like this, can saves material cost.

This contact chip 30 is a metal material, it includes first base portion 31 and the elastic portion with reseting elasticity 32 that extends to form obliquely of this first base portion 31 certainly, this first base portion 31 keeps often contacting with aforementioned second fixed contact 221, and this elastic portion 32 keeps certain clearance with aforementioned first fixed contact 211.

This flexible elastomer 40 is rubber or silica gel material, the elastic wall 42 that it includes press section 41, second base portion 43 and extends upward formation in these second base portion, 43 upper surfaces, this elastic wall 42 is domes, push or when unclamping, it can produce fairly obvious deformation in above-below direction, thereby, make the user that feel more be arranged; This flexible elastomer 40 is connected on 41 lower surfaces, press section; 41 upper surfaces, press section of this flexible elastomer 40 are butted on the aforementioned pressing piece 50, and this press section 41 be positioned at aforementioned contact chip 30 elastic portion 32 directly over, and second base portion, 43 lower surfaces of this flexible elastomer 40 are butted on first base portion 31 of aforementioned contact chip 30.

This pressing piece 50 is butted on the press section 41 of aforementioned flexible elastomer 40, mounting structure between this pressing piece 50 and the aforementioned dielectric seat 10 is specially: be respectively arranged with the second button bit portion 52 on the front and rear end of this pressing piece 50, correspondingly, on the front and rear end of aforementioned dielectric seat 10, offer draw-in groove 14, when this pressing piece 50 was installed, the aforementioned second button bit portion 52 was stuck in this draw-in groove 14; In addition, because this pressing piece 50 is exposed to insulating base 10 tops after installing, by this, and can be by on this pressing piece 50, link being set, for example, spacing preiection 53 etc. are fixed to be used for this no acoustic(al) switch integral installation; These pressing piece 50 inside have second containing cavity 51, in this second containing cavity 51, light-emitting component 60 is installed, this light-emitting component 60 is connected with two electrical pins 61, extends in the mounting groove 11 of these two electrical utmost point pin 61 corresponding embedding aforementioned dielectric seats, 10 both sides and towards below, aforementioned dielectric seat 10 bottoms.

Before pushing, present embodiment is in free state, as shown in Figure 3, aforementioned elastic wall 42 keeps the structure of arch, and the elastic portion 32 of aforementioned contact chip 30 keeps certain clearance with aforementioned first fixed contact 211, and the aforementioned the first terminal 21 and second terminal 22 are in not-connected status.

When applying enough applied external force on aforementioned pressing piece 50 time, as shown in Figure 4, the bottom surface of the press section 41 of aforementioned flexible elastomer 40 is butted on the elastic portion 32 of contact chip 30, and elastic portion 32 is butted on aforementioned first fixed contact 211 with the aforementioned the first terminal 21 of conducting and second terminal 22, realizes its closing of circuit; And after unclamping hand, the elastic portion 32 of aforementioned contact chip 30 and flexible elastomer 40 all upwards recover deformation, reduce aforementioned elastic portion 32 respectively and the gap between first fixed contact 211 and the press section 41, disconnect with the circuit of realizing aforementioned two electrical pins 61.

Design focal point of the present utility model is, mainly be by between pressing piece and contact chip, adding a flexible elastomer, so, during push switch, the pressing piece and the improvement of the hard collision between the contact chip of tradition are pushed for the flexibility between aforementioned flexible elastomer and push switch and the contact chip, on the one hand, avoid the sound that brings because of hard collision in the conventional art, thereby reached noiseless effect; On the other hand, during use because aforementioned flexible elastomer and contact chip all have certain coefficient of elasticity, therefore, push downwards and the process of letting go in have better sense of touch; Moreover, between aforementioned pressing piece, flexible elastomer and the contact chip flexible contact, improve the useful life of contact chip, thereby increased the useful life of this switch, reduced use cost.

The above, it only is preferred embodiment of the present utility model, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1. a no acoustic(al) switch is characterized in that: include insulating base, offer first containing cavity in this insulating base, in this first containing cavity contact chip, flexible elastomer and pressing piece are installed from bottom to top;

2. no acoustic(al) switch according to claim 1, it is characterized in that: described pressing piece has second containing cavity, in this second containing cavity light-emitting component is installed, this light-emitting component is connected with two electrical pins, and this two electrical pin extends towards below, aforementioned dielectric seat bottom.

3. no acoustic(al) switch according to claim 2 is characterized in that: described insulating base both sides are respectively arranged with mounting groove, and two pins of aforementioned light-emitting component are corresponding to embed in this mounting groove.

4. no acoustic(al) switch according to claim 3 is characterized in that: described insulating base both sides are respectively arranged with the first button bit portion that is used for being connected with external member, and aforementioned mounting groove is opened in this first button bit portion and runs through its upper and lower end face.

5. no acoustic(al) switch according to claim 1, it is characterized in that: described pressing piece is provided with the second button bit portion, correspondingly, offers draw-in groove on the aforementioned dielectric seat, when this pressing piece was installed in first containing cavity of insulating base, this second button bit portion was stuck in this draw-in groove.