CN2854787Y

CN2854787Y - Push button

Info

Publication number: CN2854787Y
Application number: CN 200520062981
Authority: CN
Inventors: 罗婉霞; 陈伟英; 潘进; 彭军
Original assignee: ELEVATOR FITTINGS GUANGZHOU Co Ltd
Current assignee: ELEVATOR FITTINGS GUANGZHOU Co Ltd
Priority date: 2005-08-16
Filing date: 2005-08-16
Publication date: 2007-01-03
Anticipated expiration: 2015-08-16

Abstract

The utility model discloses a push button. The push button includes a shell, a press key mechanism, a circuit board, and a touch switch mounted on the circuit board. The press key mechanism comprises a press key body, and a rubber ring and a rubber post both arranged between the press key body and the circuit board; the rubber post is aligned with the touch switch on the circuit board; and the shell is equipped with an outer shell and a bottom cover for sealing the press key, the circuit board and the touch switch. Push button of the utility model adopts elastic rubber ring and rubber post with good flexibility to prolong service life, improve elasticity of push button and light transmittance of press key surface, simplify push button structure and lower production cost.

Description

Button

[technical field]

The utility model is about a kind of button, refers to a kind of elastic button that is applied in the control boxs such as elevator especially.

[background technology]

Existing elevator button generally is back-moving spring to be installed be used for making the button of button to reset in button, but because the spring volume is bigger, make interior each parts of button housing be difficult to arrange, cause the elevator button volume to increase, thickness increases, thereby make the operation panel of elevator, the calling casing is long-pending too huge, and both complex structure expended cost again, and, the both ends of the spring face is difficult to parallel, makes the stability of equilibrium of button in the button relatively poor, and the button face easily tilts during operation, and panel light transmission is inhomogeneous, clamping stagnation takes place in spring easily simultaneously, causes button malfunctioning, influences push-botton operation, in addition, after use after a while, the elasticity of spring reduces greatly, directly has influence on the useful life of button.

Chinese patent has disclosed a kind of elevator button No. 94239791.6, its structure is: be provided with briquetting 11 in the case 13, briquetting 11 belows are provided with reed 10, described reed 10 extends to form at least two reed presser feets 14 to central portion, described reed presser feet 14 belows are provided with push rod 8, are with spring 9 on this push rod 8, and the lower end of described push rod 8 is provided with touch-switch 3, shell 7 is fixed on the wiring board 5 and is provided with gathering sill 6 in the shell 7, and case 13 is arranged in the described gathering sill 6.The button of this utility model adopts the restoring force of spring 9 that the briquetting 11 of button is resetted, make the excessive complex structure of button volume, and less stable, the life-span is shorter, expends cost again, panel lacks light transmission, be difficult to realize the button lighting function, in addition, this button adopts push rod 8 by touching touch-switch 3, in case be subjected to the damage that external impacts causes touch-switch 3 easily, reduce the button life-span greatly.

Therefore, prior art is improved, the button of provide that a kind of resilience and light transmission are good, the life-span is long, simple and compact for structure is real in necessary.

[summary of the invention]

The purpose of this utility model is to provide a kind of resilience and light transmission is good, the life-span is long, elastic button simple and compact for structure.

To achieve these goals, the utility model adopts following technical scheme:

A kind of button is provided, it comprises housing, press button mechanism, circuit board and touch-switch, this touch-switch is installed on the circuit board, this press button mechanism comprises keying body, cushion rubber and glue post, this cushion rubber and glue post can adopt the light transmission material, and place between keying body and the circuit board, this glue post is aimed at the touch-switch on the circuit board.

This keying body is provided with outward flange, and this cushion rubber is pressed close to the inboard placement of outward flange, and its height is directly touched and forced on circuit board or the touch-switch to avoid button itself greater than outward flange.This cushion rubber is provided with groove, so that this cushion rubber has certain telescopic resilience.This keying body also can not be provided with outward flange, and this cushion rubber directly is positioned between keying body and the circuit board, and this cushion rubber also can not be provided with groove, but by the cushion rubber shaped design being become folded form or other scalable shape realize elastic telescopic.

This keying body is provided with inward flange to locate this glue post, and this lugs position is corresponding with the touch-switch position.This keying body also can not be provided with inward flange, but comes positioning rubber column by structures such as depression location or draw-in groove are set, and structures such as this depression location or draw-in groove are corresponding with the touch-switch position equally.

This housing comprises shell and the bottom that two ends connect, and both combine to encapsulate this press button mechanism, circuit board and touch-switch.

This shell inboard is provided with two location notchs, and this keying body outside is provided with two projections, and this projection matches with location notch.The shape one of keying body surface configuration and shell one end opening is shown and is closely cooperated, and can be geometries such as circular, oval, square, triangle according to different demand keying body surface configurations.The shape one of bottom shape and shell other end opening is shown closely cooperate encapsulation this press button mechanism, circuit board and touch-switch.This bottom and shell are provided with corresponding a plurality of screw, add screw in order to fixing assembling button.

Compared with prior art, button of the present utility model has following beneficial effect:

Button employing of the present utility model is rich in flexible flexible rubber ring and makes pressing force buffering and resilience button, reduced the impaction lesion between button and the circuit board, and the not fragile elasticity of cushion rubber is lasting, has prolonged the useful life of button greatly, and has improved button elasticity; In addition, button of the present utility model is by adopting the glue post to push touch-switch, and has avoided the hard material of button directly to force on the touch-switch and switch is caused damage; With respect to prior art, the transparency height of cushion rubber and glue post, thus increased the light transmission of button face greatly; Moreover, use spring to do the resilience of button with respect to prior art, flexible rubber ring that the utility model adopts has reduced the height of button greatly, makes press-button structure simply compact, satisfy the demand of pressing the microminiaturized development of key technology now, and reduced cost of manufacture relatively.

[description of drawings]

Fig. 1 is the decomposing schematic representation of the utility model button;

Fig. 2 is the vertical view of the utility model button;

Fig. 3 is the cutaway view of the I-I direction of Fig. 2;

Fig. 4 is the cutaway view of the II-II direction of Fig. 2;

Fig. 5 is the vertical view of another embodiment of the utility model button.

[embodiment]

Please refer to the decomposing schematic representation of Fig. 1 the utility model button, a kind of button, it comprises housing, press button mechanism 2, circuit board 3 and touch-switch 4, this touch-switch 4 is installed on the circuit board 3, this press button mechanism 2 comprises keying body 29, cushion rubber 21 and glue post 22, this cushion rubber 21 and glue post 22 adopt the light transmission material, and place between keying body 29 and the circuit board 3, and this glue post 22 is aimed at the touch-switch 4 on the circuit board 3.This housing is in order to encapsulation press button mechanism 2, circuit board 3 and touch-switch 4.

Please in conjunction with reference to figure 2, the button face of this keying body 29 is circular, and button face opposite side periphery is provided with annular external flange 23, and this cushion rubber 21 be a ring apron, and it presses close to outward flange 23 inboard placements, and this outward flange 23 can play the effect of location rubber ring 21.The height of this cushion rubber 21 itself is directly touched and is forced on circuit board 3 or the touch-switch 4 to avoid press button mechanism 2 greater than the height of flange 23.This cushion rubber 21 is provided with groove 211, so that this cushion rubber 21 has certain telescopic resilience.This keying body 29 also can not be provided with outward flange 23, and this cushion rubber 21 directly is positioned between keying body 29 and the circuit board 3, this cushion rubber 21 also can not be provided with groove 211, but becomes folded form or other telescopic shape to realize elastic telescopic by the shaped design with cushion rubber 21.

Be provided with annular inward flange 24 in the middle of the outward flange 23 of this keying body 29, these glue post 22 parts are embedded in the annular inward flange 24 with the location, and these flange 24 positions are corresponding with the touch-switch position.This keying body 29 also can not be provided with inward flange, but comes positioning rubber column by structures such as depression location or draw-in groove are set, and structures such as this depression location or draw-in groove are corresponding with the touch-switch position equally.

This circuit board 3 is divided into double-layer structure, one deck is the last layer circuit board 31 that is furnished with light-emitting diode or other luminous element and lighting circuit, another layer is the lower circuit plate 32 that is furnished with ON-OFF control circuit, this touch-switch 4 is installed between the two-tier circuit plate, be provided with perforate 33 in the middle of should going up layer circuit board 31, so that glue post 22 can be pressed into touch-switch 4, the feasible lighting circuit 31 with luminous element of this double layer circuit plate structure can directly not have other towards keying body 29 to be stopped, increase light transmission greatly, and compact conformation.This circuit board 3 also includes external terminal 34, to connect external circuit.Should go up on the layer circuit board 31 and also perforate 33 can be set, go up layer circuit board 31 sizes or shape but change, making has enough spaces to make the touch-switch 4 between the two-tier circuit plate contact with press button mechanism 2, but can be in last layer circuit board 31 one sides and press button mechanism 2 relative and face contacts as touch-switch 4.

This keying body 29 can adopt light transmission ABS class plastics preferably, and can come the confirming button glow color by the plastics of selected different colours.

The shading piece 26 of light tight material is housed on the panel of this keying body 29, in the present embodiment, this shading piece 26 is selected frosted type stainless steel for use, which is provided with digital hollow out 27, this openwork part 27 also can be set to letter or pattern hollow out according to different demands, makes light source to send through press button mechanism 2 and from openwork part 27.The shape of the shape of this shading piece 26 and keying body 29 panels is corresponding, in embodiment illustrated in fig. 2, these keying body 29 panel-shaped are circular, these shading piece 26 area sizes can be suitably less than the area on keying body 29 surfaces, penetrate thereby make light source can directly see through press button mechanism 2, the periphery on keying body 29 surfaces also can form a circle Luminous Ring 28.

This housing comprises that shell 1 and bottom 5 that two ends connect match to encapsulate this press button mechanism 2, circuit board 3 and touch-switch 4.The mode that the utility model button also can not adopt shell to combine with bottom encapsulates, and adopts the housing that the mutually combines encapsulation of two symmetries, perhaps other packaged type.

This shell 1 inboard is provided with two location notchs 11, and these keying body 29 outsides are provided with two projections 25, and this projection 25 matches so that press button mechanism 2 is positioned in the shell 1 with location notch 11.The shape one of keying body 29 surface configurations and shell 1 one end openings is shown and is closely cooperated, and makes keying body 29 surfaces in aggregates with shell 1 surface.In the present embodiment, keying body 29 surfaces are circular, and also can be oval or geometries such as square or triangle according to different demand keying body 29 surface configurations.This shell 1 outer surface also can oval (as shown in Figure 5) or geometries such as square or triangle.The shape one of bottom 5 shapes and shell 1 other end opening is shown closely cooperate encapsulation this press button mechanism 2, circuit board 3 and touch-switch 4.This shell 1 and bottom 5 are provided with corresponding a plurality of screw 12,51, add screw (figure does not show) in order to fixing this button of assembling.

Shell 1 and bottom 5 also include corresponding side opening 13 and 52, are connected with external circuit by its external terminal 34 to allow circuit board 3.

Please in conjunction with reference to figure 3 and Fig. 4, during the assembling of the utility model button, can earlier cushion rubber 21 and glue post 22 be positioned on the keying body 29, cushion rubber 21 is positioned on the inward flange 24, and cushion rubber 21 is pressed close to outward flange 23.Again press button mechanism 2 and circuit board 3 are placed in the shell 1 successively, this press button mechanism 2 is located by projection 25 and location notch 11 with shell 1, touch-switch 4 on this circuit board 3 is aimed at glue post 22, its external terminal 34 is aimed at side opening 13, seal with bottom 5 then, the side opening 52 of bottom 5 is aimed at side opening 13, shell 1 and bottom 5 fixed sealing is installed with screw at screw 12,51 at last.

Claims

1, a kind of button, it comprises housing, press button mechanism (2), circuit board (3) and touch-switch (4), this press button mechanism (2), circuit board (3) and touch-switch (4) are encapsulated in this housing, this touch-switch (4) is installed on the circuit board (3), it is characterized in that, this press button mechanism (2) comprises keying body (29), cushion rubber (21) and glue post (22), this cushion rubber (21) and glue post (22) place between keying body (29) and the circuit board (3), and this glue post (22) is aimed at the touch-switch (4) on the circuit board (3).

2, button as claimed in claim 1 is characterized in that, this press button mechanism (2) is provided with outward flange (23), and this cushion rubber (21) is pressed close to the inboard placement of outward flange (23), and its height is greater than outward flange (23).

3, button as claimed in claim 2 is characterized in that, this cushion rubber (21) is provided with groove (211).

4, button as claimed in claim 1 is characterized in that, this press button mechanism (2) is provided with inward flange (24) to locate this glue post (22).

5, button as claimed in claim 1 is characterized in that, this cushion rubber (21) and glue post (22) adopt the light transmission material.

6, button as claimed in claim 1 is characterized in that, this keying body (29) surface is provided with shading piece (26), and this shading piece (26) is provided with numeral, letter or pattern hollow out (27).

7, button as claimed in claim 1 is characterized in that, this housing comprises shell (1) and bottom (5), and this shell (1) and bottom (5) match and encapsulate this press button mechanism (2), circuit board (3) and touch-switch (4).

8, button as claimed in claim 7 is characterized in that, this shell (1) inboard is provided with two location notchs (11), and this keying body (29) outside is provided with two projections (25), and this projection (25) matches with location notch (11).