CN204270944U

CN204270944U - A kind of key switch

Info

Publication number: CN204270944U
Application number: CN201420668674.4U
Authority: CN
Inventors: 陈泳年
Original assignee: JINFUTONG ELECTRONICS CO Ltd XIAMEN
Current assignee: JINFUTONG ELECTRONICS CO Ltd XIAMEN
Priority date: 2014-11-11
Filing date: 2014-11-11
Publication date: 2015-04-15
Anticipated expiration: 2024-11-11

Abstract

The utility model discloses a kind of key switch; Comprise upper pedestal, lower base, movable contact flat, fixed touch plate, briquetting, spring and sound sheet; Briquetting both sides form slide block, and lower base inwall forms guide-track groove accordingly, with coordinating of guide-track groove, briquetting is slidably arranged in lower base by slide block; Also form the lead of protrusion in the middle part of briquetting, upper pedestal forms gathering sill accordingly, and lead is plugged in gathering sill, and spring is nested with on lead and gathering sill; The utility model strengthens the stability of key switch, is applied to keyboard, and can meet frequent pressing and button and not produce and rock, offset, result of use is better.

Description

A kind of key switch

Technical field

The utility model relates to a kind of switch, particularly a kind of key switch.

Background technology

Key switch is that one utilizes button to promote transmission mechanism, and moving contact and fixed contact are opened by on-off and the switch of realizing circuit changing-over.Key switch is also that a kind of structure is simple, application master control electrical apparatus very widely.In electric automatic control circuit, for manually sending control signal with control contactor, relay, electromagnetic starter etc.Its principle is by the switch changed to drive inner contact with the collinear motive force of key stroke.

In actual applications, also there are some defects in the structure of key switch, a kind of button switch for keyboard disclosed in CN99243412, be applied on computor-keyboard, with reference to Fig. 1, it comprises upper pedestal 1, lower base 2, movable contact flat 3, fixed touch plate 4, briquetting 5, spring 6 and sound sheet 7, and it makes little framework 313 that elastic deformation occur by pressing briquetting 5, control contact 315 to contact with the contact 41 of fixed touch plate 4, thus realize the Push And Release of button; Button because of keyboard needs switch frequently, the track that briquetting 5 slides up and down because of repeatedly and lower base to rub the space increased between briquetting and lower base, and spring 6 is produced elastic force by during compression, briquetting will be caused to swing, button process is unstable, and then the result of use of key switch and life-span all reduce.

In order to overcome above-mentioned shortcoming, the present inventor improves key switching structure, and especial manufacture goes out the key switch that a kind of button is stablized, the life-span is long, and this case produces thus.

Utility model content

The purpose of this utility model is to provide a kind of key switch, and its stability is strong, and button is effective, long service life.

To achieve these goals, the technical solution of the utility model is as follows:

A kind of key switch, comprises upper pedestal, lower base, movable contact flat, fixed touch plate, briquetting, spring and sound sheet; Briquetting both sides form slide block, and lower base inwall forms guide-track groove accordingly, with coordinating of guide-track groove, briquetting is slidably arranged in lower base by slide block; Also form the lead of protrusion in the middle part of briquetting, upper pedestal forms gathering sill accordingly, and lead is plugged in gathering sill, and spring is nested with on lead and gathering sill; Movable contact flat comprises active contacting plate and splicing ear, the first slot is offered in the side of lower base inwall, in first slot, dividing plate is set, active contacting plate contacts with splicing ear and is plugged on inside the dividing plate of the first slot, fixed touch plate is plugged on outside the dividing plate of the first slot, the opposite side of relative first slot of lower base inwall offers the second slot, and sound sheet is plugged in the second slot.

Socket is offered in the outside of described second slot, and LED is plugged in the second slot.

After adopting such scheme, the slide block of the utility model briquetting both sides coordinates the slip making briquetting in lower base not produce swing with lower base guide-track groove, simultaneously, the lead protruded in briquetting coordinates with the gathering sill of upper pedestal to be made briquetting lower end and spring not produce to rock, can held stationary in the process be pressed and rebound by the briquetting that coordinates between above-mentioned briquetting with upper and lower pedestal, enhance the stability of key switch.

Below in conjunction with the drawings and specific embodiments, the utility model is described further.

Accompanying drawing explanation

Fig. 1 is the structural representation of existing key switch;

Fig. 2 is the stereochemical structure exploded view figure of the utility model embodiment one;

Fig. 3 is the stereochemical structure exploded view of the utility model embodiment two;

Fig. 4 is half assembling section of the utility model embodiment two;

Fig. 5 is half assembling assumption diagram of the utility model embodiment two;

Fig. 6 is the assembling section of the utility model embodiment two.

Label declaration

Upper pedestal 1, gathering sill 11, lower base 2, guide-track groove 21, the first slot 22, dividing plate 221, the second slot 23, movable contact flat 3, active contacting plate 31, framework 313, controls electric shock 315, splicing ear 32, fixed touch plate 4, contact 41, briquetting 5, slide block 51, lead 52, spring 6, sound sheet 7, LED 8.

Embodiment

Embodiment one:

As shown in Figure 1, a kind of key switch that the utility model discloses, comprises upper pedestal 1, lower base 2, movable contact flat 3, fixed touch plate 4, briquetting 5, spring 6 and sound sheet 7; Briquetting 5 both sides form slide block 51, and lower base 2 inwall forms guide-track groove 21 accordingly, makes briquetting 5 slidably be arranged in lower base 2 by slide block 51 with coordinating of guide-track groove 21; Also form the lead 52 of protrusion in the middle part of briquetting 5, upper pedestal 1 forms gathering sill 11 accordingly, and lead 52 is plugged in gathering sill, and spring 6 is nested with on lead and gathering sill; Movable contact flat 3 comprises active contacting plate 31 and splicing ear 32, the first slot 22 is offered in the side of lower base 2 inwall, dividing plate 221 is set in first slot, active contacting plate 31 contacts with splicing ear 32 and is plugged on inside the dividing plate of the first slot 221, fixed touch plate 4 is plugged on outside the dividing plate 221 of the first slot 22, the opposite side of relative first slot 22 of lower base 2 inwall offers the second slot 23, and sound sheet 7 is plugged in the second slot 23.

The utility model by slide block on briquetting 5 51 and the lead 52 that protrudes respectively with lower base, the seat of honour bodily form in closely cooperating, the displacement of restriction slide block 5 transverse direction, slide block 5 is made not produce skew when linear slide, namely during pressing, the motion of briquetting 5 is more stable, prevent briquetting 5 from offseting and cause movable contact flat 31 unstable with the contact of fixed touch plate 32, and then make the situation that key switch is sensitive not, avoid producing larger friction between briquetting 5 and upper and lower pedestal and the problem blocked simultaneously, thus improve the result of use of key switch.

Embodiment two:

As seen in figures 3-6, the difference of the present embodiment and embodiment one is: socket is offered in the outside of the second slot 23, LED 8 is plugged in the second slot 23, the present embodiment adds LED 8 in key switch, light change is produced according to the folding of key switch, strengthen its experience effect, satisfied people are now to the demand of the button aesthetic feelings such as computor-keyboard.

These are only specific embodiment of the utility model, the restriction not to protection range of the present utility model.All equivalent variations done according to the mentality of designing of this case, all fall into the protection range of this case.

Claims

1. a key switch, is characterized in that: comprise upper pedestal, lower base, movable contact flat, fixed touch plate, briquetting, spring and sound sheet; Briquetting both sides form slide block, and lower base inwall forms guide-track groove accordingly, with coordinating of guide-track groove, briquetting is slidably arranged in lower base by slide block; Also form the lead of protrusion in the middle part of briquetting, upper pedestal forms gathering sill accordingly, and lead is plugged in gathering sill, and spring is nested with on lead and gathering sill; Movable contact flat comprises active contacting plate and splicing ear, the first slot is offered in the side of lower base inwall, in first slot, dividing plate is set, active contacting plate contacts with splicing ear and is plugged on inside the dividing plate of the first slot, fixed touch plate is plugged on outside the dividing plate of the first slot, the opposite side of relative first slot of lower base inwall offers the second slot, and sound sheet is plugged in the second slot.

2. a kind of key switch as claimed in claim 1, is characterized in that: socket is offered in the outside of described second slot, and LED is plugged in the second slot.