CN202275758U

CN202275758U - Magnetic press key

Info

Publication number: CN202275758U
Application number: CN 201120385490
Authority: CN
Inventors: 张清
Original assignee: Changshu Sunrex Technology Co Ltd
Current assignee: Changshu Sunrex Technology Co Ltd
Priority date: 2011-10-12
Filing date: 2011-10-12
Publication date: 2012-06-13
Anticipated expiration: 2021-10-12

Abstract

A magnetic press key is arranged on a base and composed of a key cap and a magnetic reset device, wherein the key cap comprises a press main body which is pressed by applying force and a housing space defined by cooperating the press main body with the base, the magnetic reset device is arranged in the housing space and composed of a first magnetic piece connected with the press main body and a second magnetic piece arranged on the base; the magnetic repulsion is generated between the second magnetic piece and the first magnetic piece to make the press main body of the key cap far away from the base. The magnetic press key is capable of making the key cap automatically home by the magnetic force and easy to miniaturize and thin, so a to correspond with the development trend requirement of the electronic products.

Description

The magnetic-type button

Technical field

The utility model relates to a kind of button, particularly relates to a kind of magnetic-type button that utilizes magnetic force.

Background technology

Consult Fig. 1,2, existing button is arranged on the pedestal 4 of a substrate 41 with circuit module 411 and for example forms computer keyboard or telephone key-press dish or the like, and produces electric signal and supply subsequent applications pushing the back.This button comprises a keycap 1, a contact 2, and an elastic reset member 3.

This keycap 1 comprises that a framework that is connected with this pedestal 4 11, one be connected with this pedestal 4 movablely pushes body 12; And one pushed the accommodation space 10 that body 12 and this pedestal 4 match and define by this; Wherein, this is pushed 12 one-tenth cap shapes of body and partly in this framework 11, protrudes out.

This contact 2 is pushed body 12 with this and is connected and is arranged in this accommodation space 10, when pushing body 12 to these pedestal 4 direction displacements, drives this contact 2 and touches the substrate 41 that has circuit module 411 on this pedestal 4 and produce electric signal.

This elastic reset member 3 is arranged in this accommodation space 10, comprises that is connected in this elastic component of pushing body 12 31, and two supports that are articulated 32.This elastic component 31 is for example rubber-like such as back-moving spring, elastic block rubber material and element that can reinstatement after being compressed deformation; 32 one-tenth fork ground that intersect each other of said support articulate; And the homonymy end is connected to this pedestal 4 and pushes the scissor framework (scissors type) that becomes double link on the body 12 with this, moves up-down and can make this push body 12 relative to stable upper and lower of this framework 11.

When shown in Fig. 2 direction of arrow, applying pressure to this keycap 1, this is pushed body 12 and moves and drive circuit module 411 and the generation electric signal that this contact 2 touches this substrate 41 to these pedestal 4 directions, and simultaneously, this elastic component 31 is compressed deformation and storage elasticity potential energy; And when removing the pressure that puts on this keycap 1; This elastic component 31 disengages elastic potential energy and makes this push body 12 and returns back to the original position away from this pedestal 4 as shown in Figure 1, and makes this contact 2 no longer contact the circuit module 411 of this substrate 41 and do not produce electric signal.

Above-mentioned button really can be when pushing output electric signal; And when no longer pushing by the restoring force of elastic component 31 and make this push body 12 to return back to position away from this pedestal 4; But,, could accomplish the process of pushing, replying swimmingly so elastic component 31 needs certain volume size because pushing, replying of such button mainly is to borrow accomplishing from the body compressive deformation of elastic component 31; Also therefore; The keyboard that is made up of such button and pedestal 4 will inevitably have certain thickness size, and further slimming, microminiaturization, and can't satisfy the development trend demand of electronic product now; So present button still needs to improve, so can be in addition microminiaturized, slimming to be to meet the current situation on the market.

Summary of the invention

But the purpose of the utility model is to provide the magnetic-type button of the stable and slimming of a kind of start.

The utility model magnetic-type button is to be arranged on the pedestal, comprises a keycap, and a magnetic force resetting means.

This keycap comprise one be connected with this pedestal movablely push body, and one is pushed that body matches with this pedestal and the accommodation space that forms by this.

This magnetic force resetting means is arranged in this accommodation space; Comprise that is connected in first magnetic part that this pushes body; And second magnetic part that is arranged at this pedestal, produce magnetic repulsion between this second magnetic part and this first magnetic part and perseverance makes this keycap pushes body away from this pedestal.

In addition, the purpose of the utility model and solve its technical problem and also can adopt following technical measures further to realize.

This first magnetic part and this second magnetic part of the said magnetic-type button of the utility model are respectively permanet magnets.

This first magnetic part of the said magnetic-type button of the utility model, second magnetic part are respectively the electromagnet that is electrically connected with this pedestal.

This first magnetic part of the said magnetic-type button of the utility model is a permanet magnet, and this second magnetic part is the electromagnet that is electrically connected on this pedestal.

This first magnetic part of the said magnetic-type button of the utility model is the electromagnet that is electrically connected on this pedestal, and this second magnetic part is a permanet magnet.

The said magnetic-type button of the utility model also comprises one and pushes the contact that body is connected and is arranged in this accommodation space with this, when pushing body to this pedestal direction displacement, drives this contact and touches this pedestal and produce electric signal.

This keycap of the said magnetic-type button of the utility model also comprises a framework that is connected with this pedestal; This pushes the shell wall that body has a cap shape; And first shirt rim of extending by this shell wall root edge, this first shirt rim this framework of clip when this pushes body away from this pedestal and make this push body not break away from this framework.

This keycap of the said magnetic-type button of the utility model also comprises a framework that is connected with this pedestal; This magnetic force resetting means also comprises two supports that articulate and be arranged in with intersecting this accommodation space respectively; The homonymy end of said support is connected to this pedestal and pushes body with this, and the restriction of said support makes this push body not break away from this framework when this pushes body away from this pedestal.

This keycap of the said magnetic-type button of the utility model push body and this contact is one-body molded.

The beneficial effect of the utility model is: replace existing elastic reset member with the magnetic force resetting means; Improve the problem that makes because of the restriction of the material of elastomer own that originally button integral thickness, shape can't miniaturizations, therefore the structure of whole button can be more compact.

Description of drawings

Fig. 1 is a generalized section, and existing press-key structure is described;

Fig. 2 is a generalized section, and structure when existing button is pushed is described;

Fig. 3 is a generalized section, and one first preferred embodiment of the utility model magnetic-type button is described;

Fig. 4 is a generalized section, and structure when this first preferred embodiment is pushed is described;

Fig. 5 is a generalized section, and one second preferred embodiment of the utility model magnetic-type button is described;

Fig. 6 is a generalized section, and structure when this second preferred embodiment is pushed is described.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.

Consult Fig. 3,4; The utility model magnetic-type button is to be arranged on the pedestal 8 of a substrate 81 with circuit module 811 and to form for example computer keyboard; Or telephone key-press dish ... Or the like, and after pushing, make the substrate 81 that has circuit module 811 in this pedestal 8 produce electric signal confession subsequent applications; And first preferred embodiment of the utility model magnetic-type button comprises a keycap 5, a contact 6 and a magnetic force resetting means 7.

This keycap 5 comprises that a framework that is connected with these pedestal 8 sets 51, one be connected with this pedestal 8 movablely pushes body 52; And one pushed the accommodation space 50 that body 52 and this pedestal 8 match and define by this; Wherein, This is pushed body 52 and supplies users to push, stable and convenient in order to push, and this pushes the general preferable as figure institute's cap shape that is depicted as of body 52 and part protrudes out outside this framework 51.

This contact 6 is pushed with this that body 52 is connected towards the surface of this pedestal 8 and is protruded out and be arranged in this accommodation space 50 towards this pedestal 8, when this pushes body 52 to these pedestal 8 direction displacements, drives this contact 6 and touches this substrate with circuit module 811 81 and make this substrate 81 produce electric signals and outwards transmit.The substrate 81 that has circuit module 811 in the present embodiment is to serve as to implement aspect with film circuit board (membrane), but not as limit, and other also can be used as selection to use like printed circuit board (PCB) with touching switch etc.

This magnetic force resetting means 7 is arranged in this accommodation space 50; Comprise that one is connected in this first magnetic part 71 of pushing body 52, one and corresponds to these first magnetic part, 71 positions and be installed on second magnetic part 72 on this pedestal 8; And two supports 73 that flexibly connect mutually; Said support articulates for 73 one-tenth each other across; And the homonymy end is connected to this pedestal 8 and pushes with this and form a kind of scissor framework (scissors type) on body 52, and can making this push body 52, this framework 51 can be stable relatively upper and lowerly moves up-down and can not break away from this

pedestal

8 and 51 restricted portions of this framework, by its detail structure of scissor lifting structure that said support 73 became be general industry known; And the invention emphasis of non-the utility model is not so carefully state at this.

This first magnetic part 71 is separated relatively with this second magnetic part 72; And opposite face has identical magnetic polarity; Make 72 of this first magnetic part 71 and this second magnetic parts produce magnetic repulsion and the permanent body 52 of pushing of this keycap 5 that keeps is pushed away toward being positioned at the position away from this pedestal 8 as shown in Figure 3, this contact 6 also has the substrate 81 of circuit module 811 away from this simultaneously; And when shown in Fig. 4 direction of arrow, apply pressure to this keycap 5 push body 52 time; This push body 52 towards this pedestal 8 near; And drive this contact 6 and contact the substrate 81 that has circuit module 811 in this pedestal 8; And trigger 811 the corresponding contactors of circuit module on this substrate 81 and send electric signal; And when remove apply pressure to this keycap 5 push the external force on the body 52 time, the body 52 pushed of this keycap 5 is also borrowing this magnetic repulsion to be returned to the position away from this pedestal 8 with this contact 6.

In this first preferred embodiment is as this first magnetic part 71 with permanet magnet; 72 of this second magnetic parts are to have the magnet of helical coil 9 and utilize electrical connection with this pedestal 8 to switch on into electromagnet; And produce magnetic repulsion with this permanet magnet; Use electromagnet also to have another advantage in addition, when this pedestal 8 do not supply power, when just not using this keyboard, this pushes body 52 can drop to position as shown in Figure 4; Therefore whole button thickness reduces, and is favourable especially for folding of slimming product.

Certainly, the selection of this first magnetic part 71, second magnetic part 72 can be the combination in any of permanet magnet, electromagnet, or other can produce the object of magnetic force, and this kind enforcement material that is not limited in the present embodiment to be carried.

The utility model magnetic-type button does not re-use in the prior art employed elastomer as the resetting means of this keycap 5, and therefore in thickness, the size of this keycap 5, and the suffered restriction of the shape of this contact 6 size will significantly improve.In addition; Apply pressure in the utility model that this pushes body 52 and during switch key; Only need resist the magnetic repulsion of 72 of this first magnetic parts 71, second magnetic part; More laborsaving on not only using, and the thickness of this keycap 5, contact 6, material can be frivolous firm be design direction, and reduction processing procedure cost.

Generally speaking; The structural limitations of the utility model magnetic-type button compares to the existing keyboard that background technology is carried; Not only under start stably, can reduce thickness, size and the reduction material cost of this assembly; And also do not have is that return mechanism possibly produce elastic fatigue and the situation that can't reply takes place with the elastomeric material in the past, therefore can solve the slimming problem of existing press-key structure and have the market competitiveness more.

Consult Fig. 5,6, second preferred embodiment of the utility model magnetic-type button comprises a keycap 5, a contact 6, and a magnetic force resetting means 7.

This keycap 5 comprises that a framework that is connected with these pedestal 8 sets 51, one be connected with this pedestal 8 movablely pushes body 52; And one pushed the accommodation space 50 that body 52 and this pedestal 8 match and define by this; Wherein, This is pushed body 52 and has a shell wall 521 that becomes the cap shape and supply this user to push, and reach one by this outward extending first shirt rim 522 of cap shape housing 521 root edges, and this framework 51 has the fastening end 511 of a protrusion in contrast to the apical margin of this pedestal 8.

This contact 6 and this shell wall 521 are connected towards the surface of these pedestal 8 directions and protrude out and be arranged in this accommodation space 50 towards this pedestal 8, when pushing body 52 to these pedestal 8 direction displacements, drive this contact 6 and touch and have the substrate 81 of circuit module 811 in this pedestal 8 and make this substrate 81 produce electric signals to transmit to the external world.

This magnetic force resetting means 7 is arranged in this accommodation space 50, comprises first magnetic part 71 that is connected in this shell wall 521, and one corresponds to these first magnetic part, 71 positions and is installed on second magnetic part 72 on this pedestal 8.

This first magnetic part 71 is separated relatively with this second magnetic part 72; And opposite face has identical magnetic polarity; Make 72 of this first magnetic part 71 and this second magnetic parts produce magnetic repulsion and permanently keep this to push body 52 being pushed away toward being positioned at the position away from this pedestal 8 as shown in Figure 5; This contact 6 also has the substrate 81 of circuit module 811 away from this, these first shirt rim, 522 clips of pushing body 52 are pushed body 52 and can not broken away from this framework 51 and be connected on this pedestal 8 movablely to limit this in the fastening end 511 of this framework 51 simultaneously; And when shown in Fig. 6 direction of arrow, apply pressure to this keycap 5 push body 52 time; This push body 52 towards this pedestal 8 near; And drive this contact 6 and contact the substrate 81 that has circuit module 811 in this pedestal 8; And trigger 811 the corresponding contactors of circuit module on this substrate 81 and send electric signal, and when remove apply pressure to this keycap 5 push the external force on the body 52 time, this is pushed body 52 and is also borrowing this magnetic repulsion to be returned to the position away from this pedestal 8 with this contact 6.

In this second preferred embodiment, the selection of this first magnetic part 71, second magnetic part 72 is identical with this first preferred embodiment with aspect, so no longer repeat to give unnecessary details.

This second preferred embodiment utilizes the structure of this keycap 5; Making this push first shirt rim 522 that body 52 had matches with the fastening end 511 of this framework 51; Making this push body 52 can be fixed in this framework 51; Push body 52 and no longer need to connect this, further reach the aspect of designs simplification and more help microminiaturization and the reduction manufacturing cost like the more complicated scissor Framework construction of combination in this first preferred embodiment.

In sum; The utility model magnetic-type button replaces elastic reset member in the past with the magnetic force resetting means; Improve the stability that causes influencing start originally because of the restriction of the material of elastic reset member own; Make the problem that button integral thickness, shape can't miniaturizations, the selection of keycap also can and then have advantage laborsaving, the cost-saving towards more frivolous material development in addition, so can reach the purpose of the utility model really.

Claims

1. a magnetic-type button is arranged on the pedestal, comprises a keycap, this keycap comprise one be connected with this pedestal movablely push body, and one is pushed that body matches with this pedestal and the accommodation space that forms by this; It is characterized in that:

This magnetic-type button also comprises a magnetic force resetting means; Be arranged in this accommodation space; Comprise that is connected in first magnetic part that this pushes body; And second magnetic part that is arranged at this pedestal, produce magnetic repulsion between this second magnetic part and this first magnetic part and perseverance makes this keycap pushes body away from this pedestal.

2. magnetic-type button according to claim 1 is characterized in that: this first magnetic part and this second magnetic part are respectively permanet magnets.

3. magnetic-type button according to claim 1 is characterized in that: this first magnetic part, second magnetic part are respectively the electromagnet that is electrically connected with this pedestal.

4. magnetic-type button according to claim 1 is characterized in that: this first magnetic part is a permanet magnet, and this second magnetic part is the electromagnet that is electrically connected on this pedestal.

5. magnetic-type button according to claim 1 is characterized in that: this first magnetic part is the electromagnet that is electrically connected on this pedestal, and this second magnetic part is a permanet magnet.

6. according to claim 1,2,3,4 or 5 described arbitrary magnetic-type buttons; It is characterized in that: this magnetic-type button also comprises one and pushes the contact that body is connected and is arranged in this accommodation space with this, when pushing body to this pedestal direction displacement, drives this contact and touches this pedestal and produce electric signal.

7. magnetic-type button according to claim 6; It is characterized in that: this keycap also comprises a framework that is connected with this pedestal; This pushes the shell wall that body has a cap shape; And first shirt rim of extending by this shell wall root edge, this first shirt rim this framework of clip when this pushes body away from this pedestal and make this push body not break away from this framework.

8. magnetic-type button according to claim 7 is characterized in that: this keycap push body and this contact is one-body molded.

9. magnetic-type button according to claim 6; It is characterized in that: this keycap also comprises a framework that is connected with this pedestal; This magnetic force resetting means also comprises two supports that articulate and be arranged in with intersecting this accommodation space respectively; The homonymy end of said support connects this pedestal respectively and pushes body with this, and the restriction of said support makes this push body not break away from this framework when this pushes body away from this pedestal.

10. magnetic-type button according to claim 9 is characterized in that: this keycap push body and this contact is one-body molded.