CN209434073U - A kind of press-key structure - Google Patents

Abstract

The application provides a kind of press-key structure, from the bottom to top successively includes: circuit layer, metal elastic lamella, pressure elastic slice layer, upper separation layer and drop glue surface film layer；Contact is equipped in the middle part of circuit layer；Metal elastic lamella includes that at least two panels stacks metal clips together, and metal clips surface is arc, and curved edge is equipped with stand bar seat；It presses and is equipped with first through hole in the middle part of elastic slice, the lower surface on elastic slice except other regions of first through hole is pressed to be arranged every glue；The second through-hole is equipped in the middle part of upper spacer, the upper surface and the lower surface in other regions for removing the second through-hole on upper spacer is respectively set every glue；Drop glue surface film layer upper surface corresponds to the position setting drop glue of metal elastic lamella.The beneficial effect of the application is: setting at least two panels metal clips, pressing feel when enhancing key uses, so that user well knows the feedback of key；Drop glue processing is carried out in the outermost layer of key, improves the wearability and corrosion resistance of key.

Description

A kind of press-key structure

Technical field

This disclosure relates to technical field of key, and in particular to a kind of press-key structure.

Background technique

Silica gel push-button is to make key by raw material of silica gel, with the fast development of electronics industry, information industry, to electronics The requirement of product is higher and higher, and equally the requirement of switch key is also being continuously improved, and especially uses texture, key to key Surface printing font wearability, key conduction sensitivity etc. propose high requirement.Traditional silica gel keytop is unprocessed, The wearability of keytop printing type face and the corrosion resistance of keytop all cause the service life of silica gel push-button to reduce.In addition When key bottom is connected using metal clips and circuit board, need biggish conducting pressing force, but silica gel push-button by In its material property, manufacture big, higher cost at manufacture difficulty when higher hardness.

Utility model content

The purpose of the application is in view of the above problems, providing a kind of press-key structure.

In a first aspect, the application provides a kind of press-key structure, it from the bottom to top successively include: circuit layer, metal elastic lamella, pressure Elastic slice layer, upper separation layer and drop glue surface film layer；

The medium position of the circuit layer is equipped with contact；

The metal elastic lamella includes that at least two panels stacks metal clips together, the middle part of the every metal clips The curved surfaces protruded outward are set as, the curved surfaces edge is equipped with several stabilizer blades being correspondingly arranged with the contact Seat, the extending direction of the stand bar seat is far from the outer convex direction of the arc；The contact is arranged in the stand bar seat contact It is electrically connected when upper surface with the contact；

The corresponding metal clips curved surfaces are equipped with first through hole, the metal clips arc table in the middle part of the pressure elastic slice Face passes through the upper surface that the first through hole stretches out in the pressure elastic slice；The pressure elastic slice lower surface is equipped with logical around described first Make a circle outside hole every glue, the pressure elastic slice is connected by described paste every glue and the circuit layer and metal elastic lamella；

The corresponding first through hole is equipped with the second through-hole in the middle part of the upper spacer, and the metal clips curved surfaces pass through Second through-hole stretches out in the upper surface of the upper spacer；The upper surface and the lower surface of the upper spacer is respectively equipped with ring Make a circle outside second through-hole every glue, the upper spacer by it is described every glue respectively with the pressure elastic slice and drip glue surface Film layer pastes connection；

The drop glue surface film layer upper surface corresponds to the position setting drop glue of the metal elastic lamella.

According to technical solution provided by the embodiments of the present application, the metal elastic lamella includes that two panels stacks metal together Elastic slice, metal clips described in two panels are followed successively by the first metal clips and the second metal clips from the bottom to top；First metal elastic There are the first groove, close first metal clips in the middle part of the arc of second metal clips to lower recess in the middle part of the arc of piece Surface correspond to first groove setting convex block；Pressing the metal elastic lamella may make the convex block to be connected to described first In groove.

According to technical solution provided by the embodiments of the present application, the first through hole size is less than the arc of the metal clips Surface size.

According to technical solution provided by the embodiments of the present application, second clear size of opening is not less than the first through hole ruler It is very little.

According to technical solution provided by the embodiments of the present application, the thickness of the circuit layer is not less than 1.2mm.

According to technical solution provided by the embodiments of the present application, the altitude range of the drop glue is 1.2mm-1.4mm.

According to technical solution provided by the embodiments of the present application, the material of the pressure elastic slice is PET plastic, and thickness range is 0.10mm-0.16mm。

According to technical solution provided by the embodiments of the present application, the material of the upper spacer is PET plastic, and thickness range is 0.18mm-0.25mm。

Beneficial effects of the present invention: successively including: circuit layer, metal elastic lamella, pressure elastic slice layer, upper separation layer from the bottom to top And drop glue surface film layer；The medium position of the circuit layer is equipped with contact；The metal elastic lamella includes that at least two panels is stacked one The metal clips risen is set as the curved surfaces protruded outward, the curved surfaces side in the middle part of the every metal clips Edge is equipped with several stand bar seat being correspondingly arranged with the contact, and the extending direction of the stand bar seat is far from the evagination of the arc Direction；The stand bar seat contact is electrically connected when the upper surface of the contact is arranged in the contact；It is right in the middle part of the pressure elastic slice The metal clips curved surfaces are answered to be equipped with first through hole, the metal clips curved surfaces pass through the first through hole and stretch out in The upper surface of the pressure elastic slice；The pressure elastic slice lower surface be equipped with make a circle outside the first through hole every glue, the pressure Elastic slice is connected by described paste every glue and the circuit layer and metal elastic lamella；Corresponding described first in the middle part of the upper spacer Through-hole is equipped with the second through-hole, and the metal clips curved surfaces pass through the upper table that second through-hole stretches out in the upper spacer Face；The upper surface and the lower surface of the upper spacer be respectively equipped with make a circle outside second through-hole every glue, it is described on Spacer is pasted and is connected with the pressure elastic slice and drop glue surface film layer respectively every glue by described；Drop glue surface film layer upper surface pair Answer the position of the metal elastic lamella that drop glue is set.At least two panels is set by the metal clips in key, so that user makes The pressing force of used time increases, pressing feel when enhancing key uses, so that user well knows the feedback of key.Separately External key carries out drop glue processing in outer surface, and the wearability and corrosion resistance on key especially its surface can be improved, can also To enhance the hardness of key, metal clips can be effectively pressed, leads the contact on metal clips and the circuit layer of lower layer It is logical, improve the pressing validity of key.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the first embodiment of the application；

Fig. 2 is the structural schematic diagram of circuit layer in the first embodiment of the application；

Fig. 3 is the structural schematic diagram of metal elastic lamella in the first embodiment of the application；

Label character described in figure indicates are as follows: 100, circuit layer；110, contact；200, metal elastic lamella；210, metal elastic Piece；211, the first groove；212, convex block；300, elastic slice is pressed；310, first through hole；400, upper spacer；410, the second through-hole； 500, glue surface film layer is dripped；700, glue is dripped.

Specific embodiment

In order to make those skilled in the art more fully understand the technical solution of the application, with reference to the accompanying drawing to the application into Row detailed description, the description of this part be only it is exemplary and explanatory, should not have any limitation to the protection scope of the application Effect.

It from the bottom to top successively include: circuit layer as shown in Figure 1, being the structural schematic diagram of the first embodiment of the application 100, metal elastic lamella 200, pressure elastic slice layer 300, upper separation layer 400 and drop glue surface film layer 500.In the present embodiment, by down toward On direction refer to the direction of pressing force from the distant to the near apart from pressing keys.

As shown in Fig. 2, the medium position of the circuit layer 100 is equipped with contact 110.

In the present embodiment, circuit layer 100 be PCB circuit, PCB circuit board with a thickness of 1.2mm, in other embodiments In, circuit layer 100 with a thickness of be not less than 1.2mm numerical value.The minimum thickness of circuit layer 100 is restricted, is to guarantee electricity Road floor 100 has certain degree of hardness and rigidity, increases push button longevity and guarantees the validity of key press.

In the present embodiment, surface gold-plating processing is carried out to the contact 110 of circuit layer 100, it is therefore an objective to: enhance leading for key It is electrical, and increase the wearability of key.

In the present embodiment, the metal elastic lamella 200 includes that two panels stacks metal clips 210 together, at other In embodiment metal elastic lamella 200 may include three pieces, four or other be no less than the metal clips 210 of two panels quantity.It will Metal clips in key is set as multi-disc, so that pressing force when user uses increases, pressing when enhancing key uses Feel, so that user well knows the feedback of key.

The middle part of the every metal clips 210 is set as the curved surfaces protruded outward, the curved surfaces edge Equipped with the stand bar seat that several are correspondingly arranged with the contact 110, the extending direction of the stand bar seat is far from the outer of the arc Convex direction；The stand bar seat contact is electrically connected when the upper surface of the contact 110 is arranged in the contact.In the present embodiment In, metal clips 210 can for example select 12.2-SDL-400-NI/SS model.

The validity that metal clips 210 and contact 110 is connected, and guarantee Two panels stacks two panels metal clips 210 together and can effectively contact, in a preferred embodiment, the metal elastic lamella packet It includes two panels and stacks metal clips together, metal clips described in two panels is followed successively by the first metal clips and the second gold medal from the bottom to top Belong to elastic slice；There are the first groove 211, the arc of second metal clips to lower recess in the middle part of the arc of first metal clips Middle part corresponds to the first groove setting convex block 212 close to the surface of first metal clips；Press the metal elastic lamella 200 may make the convex block 212 to be connected in first groove 211, as shown in Figure 3.In the preferred embodiment, convex block 212 height be greater than the first groove 211 depth so that press down on metal elastic lamella 200 when, the second metal clips it is convex Block 212 can be connected in the first groove 211 of the first metal clips, and convex block 212 can be partially protrude through the first groove 211, it is contacted with guaranteeing that the first metal clips can be connected effectively with the second metal clips, so that external pressing force can have Effect is transmitted to the first metal clips far from pressing force by the second metal clips close to pressing force, close to the of circuit layer 100 One metal clips receives external pressing force and causes deformation, and then the contact 110 in circuit layer 100 is connected, so that pressing Key conducting.

210 curved surfaces of metal clips are corresponded in the middle part of the pressure elastic slice 300 equipped with first through hole 310, the metal 210 curved surfaces of elastic slice pass through the upper surface that the first through hole 310 stretches out in the pressure elastic slice 300；Under the pressure elastic slice 300 Surface outside the first through hole equipped with making a circle every glue, and the pressure elastic slice 300 is by described every glue and the circuit layer 100 and metal elastic lamella 200 paste connection.

In a preferred embodiment, 310 size of first through hole is less than the curved surfaces size of the metal clips 210.

In the preferred embodiment, since 310 size of first through hole is less than the curved surfaces ruler of the metal clips 210 It is very little, so that the part curved surfaces of metal clips 210 extend out to the upper surface of pressure elastic slice 300, the curved surfaces quilt of rest part Pressure elastic slice 300 shelters from, so that metal clips 210 can not all be stretched out by first through hole 310, so that pressure elastic slice 300 pairs of metal elastic lamellas 200 play the fixed effect of limit, so that the metal clips contacted with contact 110 in circuit layer 100 210 can not random shift position.

In the present embodiment, every glue for the double-deck viscosity, certain thickness elastic material, such as model 3M467.? In the present embodiment, pastes in the position of the non-first through hole 310 of the lower surface of pressure elastic slice 300 every glue, can will press elastic slice every glue 300 link together with circuit layer 100 and the stickup of metal elastic lamella 200.Setting can be glued every glue meeting on pressure elastic slice 300 Make key under the premise of attached function while having both waterproofness.

In the present embodiment, the material for pressing elastic slice 320 is PET plastic, with a thickness of 0.125mm, in other embodiments, pressure The thickness of elastic slice 320 may be 0.10mm, 0.16mm or for the arbitrary value within the scope of 0.10mm-0.16mm.

The first through hole 310 is corresponded in the middle part of the upper spacer 400 equipped with the second through-hole 410, the metal clips 210 Curved surfaces pass through the upper surface that second through-hole 410 stretches out in the upper spacer 400；The upper spacer 400 it is upper Surface and lower surface be respectively equipped with make a circle outside second through-hole 410 every glue, the upper spacer by it is described every Glue is pasted and is connected with the pressure elastic slice 300 and drop glue surface film layer 500 respectively.

In the present embodiment, paste in the upper and lower surface of upper spacer 400 every glue, lower surface every glue by upper spacer 400 link together with the pressure stickup of elastic slice 300, and the pasting upper spacer 400 with drop glue surface film layer 500 every glue of upper surface connects Together.Two layers of upper 400 upper and lower surface of spacer constitutes the stroke space of metal elastic lamella 200 every glue.

To enable the arcuate surface portions of the metal clips 210 across pressure elastic slice 300 to pass completely through the second through-hole 410, therefore in a preferred embodiment, 410 size of the second through-hole is not less than 310 size of first through hole.

In a preferred embodiment, the material of the upper spacer 400 is PET plastic, with a thickness of 0.2mm.In other realities It applies in example, the thickness of upper spacer 400 can also be appointing within the scope of 0.18mm, 0.22mm, 0.25mm or 0.18mm-0.25mm Meaning value.

To improve the wearability and corrosion resistance on key especially its surface, while increasing the hardness of key, it can be effective Metal clips 210 is pressed, metal clips 210 is connected with the contact 110 on the circuit layer 100 of lower layer, key is improved Press validity, the position setting drop glue 700 of the corresponding metal elastic lamella 200 of drop glue surface film layer 500.

In the present embodiment, the height of the drop glue 700 is 1.2mm, in other embodiments, drips the thickness of glue 700 also It can be 1.4mm, or be the arbitrary value within the scope of 1.2mm-1.4mm.

In the present embodiment, the arcwall face for pressing metal elastic lamella 200 connects the central contact at itself and 100 middle part of circuit layer Touching connection, but the contact due to four stand bar seat of metal clips 210 respectively with 100 periphery of circuit layer is constantly in contact connectio State, to realize the central contact of circuit layer 100 and the conducting connection of peripheral contacts, key realizes conducting.

Specific examples are used herein to illustrate the principle and implementation manner of the present application, the explanation of above example It is merely used to help understand the present processes and its core concept.The above is only the preferred embodiment of the application, is answered When pointing out due to the finiteness of literal expression, and objectively there is unlimited specific structure, for the common skill of the art For art personnel, under the premise of not departing from the application principle, several improvement, retouching or variation can also be made, can also be incited somebody to action Above-mentioned technical characteristic is combined in the right way；These improve retouching, variation or combination, or the not improved structure by application Think and technical solution directly applies to other occasions, is regarded as the protection scope of the application.

Claims (8)

1. a kind of press-key structure, which is characterized in that successively include: from the bottom to top circuit layer, metal elastic lamella, pressure elastic slice, on every From piece and drop glue surface film layer；

The medium position of the circuit layer is equipped with contact；

The metal elastic lamella includes that at least two panels stacks metal clips together, the middle part setting of the every metal clips For the curved surfaces protruded outward, the curved surfaces edge is equipped with several stand bar seat being correspondingly arranged with the contact, Outer convex direction of the extending direction of the stand bar seat far from the arc；The upper table of the contact is arranged in the stand bar seat contact It is electrically connected when face with the contact；

The corresponding metal clips curved surfaces are equipped with first through hole in the middle part of the pressure elastic slice, and the metal clips curved surfaces are worn Cross the upper surface that the first through hole stretches out in the pressure elastic slice；The pressure elastic slice lower surface is equipped with outside the first through hole Make a circle every glue, the pressure elastic slice is connected by described paste every glue and the circuit layer and metal elastic lamella；

The corresponding first through hole is equipped with the second through-hole in the middle part of the upper spacer, and the metal clips curved surfaces pass through described Second through-hole stretches out in the upper surface of the upper spacer；The upper surface and the lower surface of the upper spacer is respectively equipped with around institute State make a circle outside the second through-hole every glue, the upper spacer by it is described every glue respectively with the pressure elastic slice and drip glue surface film layer Paste connection；

The drop glue surface film layer upper surface corresponds to the position setting drop glue of the metal elastic lamella.

2. press-key structure according to claim 1, which is characterized in that the metal elastic lamella includes that two panels stacks together Metal clips, metal clips described in two panels is followed successively by the first metal clips and the second metal clips from the bottom to top；Described first There are the first groove, close first gold medal in the middle part of the arc of second metal clips to lower recess in the middle part of the arc of metal clips The surface for belonging to elastic slice corresponds to the first groove setting convex block；Pressing the metal elastic lamella may make the convex block to be connected to institute It states in the first groove.

3. press-key structure according to claim 1, which is characterized in that the first through hole size is less than the metal clips Curved surfaces size.

4. press-key structure according to claim 1, which is characterized in that second clear size of opening is logical not less than described first Pore size.

5. press-key structure according to claim 1, which is characterized in that the thickness of the circuit layer is not less than 1.2mm.

6. press-key structure according to claim 1, which is characterized in that the altitude range of the drop glue is 1.2mm-1.4mm.

7. press-key structure described in any one of -6 according to claim 1, which is characterized in that it is described pressure elastic slice material be PET plastic, thickness range 0.10mm-0.16mm.

8. press-key structure described in any one of -6 according to claim 1, which is characterized in that the material of the upper spacer is PET plastic, thickness range 0.18mm-0.25mm.