CN207425686U - Dual spring mechanical film composite keyboard - Google Patents
Dual spring mechanical film composite keyboard Download PDFInfo
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- CN207425686U CN207425686U CN201721445154.7U CN201721445154U CN207425686U CN 207425686 U CN207425686 U CN 207425686U CN 201721445154 U CN201721445154 U CN 201721445154U CN 207425686 U CN207425686 U CN 207425686U
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- shaft core
- spring
- contact
- block
- film composite
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Abstract
The utility model discloses a kind of dual spring mechanical film composite keyboards,Including button axle,Cushion pad and conductive film,The button axle is arranged on cushion pad,The cushion pad is arranged on conductive film,The button axle includes upper cover,Lower cover and shaft core,The upper cover has the opening exposed for shaft core upper surface,The shaft core includes the first shaft core,Second shaft core,First spring and second spring,The lower end of second shaft core is equipped with the first contact,The upper surface of the cushion pad is equipped with the second contact,First contact and the second contact face setting,Straight slot is covered under described,The conductive film includes two basement membranes,Insulation diaphragm and two conductiving points,Two conductiving points are respectively arranged on the inside of two basement membranes,The insulation diaphragm is equipped with through hole,The through hole and two conductiving points are that face is set,Second contact is arranged on the surface of conductiving point.The anti-oxidant and anti-conducting liquid ability of the utility model is strong, and practicability is high, and using good hand touch, service life is long, at low cost.
Description
Technical field
The utility model belongs to keyboard technique field, more particularly, to a kind of dual spring mechanical film composite keyboard.
Background technology
Existing standard machinery keyboard uses mechanical switch axis body, because its metal spring can ensure that elastic handfeel is accurate, energy
It enough keeps the much time using service life and is widely used, but standard machinery keyboard is connected using welding manner with wiring board,
This means the wiring board used must be large scale, thus cost of manufacture is higher, and mechanical shrapnel realizes conducting
With disconnection, there are problems that metal material oxidation, deformation etc. are compared and be difficult to overcome；And the meeting after thering is conducting liquid to corrode keyboard
There is the problem of false triggering.
For this phenomenon, part businessman proposes membrane keyboard, and membrane keyboard conducting, which disconnects, to be concentrated on conductive film, because
Conductive silver paste is printed on conductive film inner layer, will not be contacted directly with the external world, and the ability that anti-oxidant, anti-conducting liquid corrodes compares
By force, but since membrane keyboard using silica gel realizes pressing force, bounce, stroke, the requirement for silica gel is higher, uses the longevity
Life can be relatively short, and with the growth of usage time, the problems such as silica gel has abrasion, deformation, foaming, and pressing force, rebound
Power can not stablize maintenance, because the presence of silica gel volume itself, when bottom is pressed into, bounce, which can compare, to be increased
In apparent, often complained in pressing feel by people.
Utility model content
The purpose of this utility model is to provide a kind of dual spring mechanical film composite keyboard, anti-oxidant, anti-conduction liquid
Ability of immigrants is strong, and practicability is high, and user, using feeling is better, service life is longer, and manufacture is at low cost.
One side according to the present utility model provides a kind of dual spring mechanical film composite keyboard, including button axle,
Cushion pad and conductive film, the button axle are arranged on cushion pad, and the cushion pad is arranged on conductive film, and the button axle includes upper
The lower cover and shaft core moving up and down of lid and the removable connection of upper cover, the upper cover have what is exposed for shaft core upper surface
Opening, the shaft core include the first shaft core, the second shaft core, the first spring and second spring, and second shaft core is installed on first
The lower end of shaft core, one end of first spring are connected with the first shaft core, and the other end of first spring and the second shaft core connect
It connects, one end of the second spring is connected with the first shaft core, and the other end of the second spring is connected with lower cover, second axis
The lower end of core is equipped with the first contact, and the upper surface of the cushion pad is equipped with the second contact to raise up, first contact and
Second contact faces setting, and the straight slot that the first contact is facilitated to press to the second contact, the conductive film bag are covered under described
Two basement membranes with good insulation properties, the insulation diaphragm between two basement membranes and two conductiving points being oppositely arranged are included, two lead
Electricity point is respectively arranged on the inside of two basement membranes, and the insulation diaphragm is equipped with through hole, and the through hole and two conductiving points are that face is set,
Second contact is arranged on the surface of conductiving point, and the shaft core moves down, and first contact squeezes the second contact, and two lead
Electric point contact.
The beneficial effects of the utility model are：Second spring provides lower pressure, after reaching specified stroke, is carried by the first spring
For the first contact elastic force, such spring energy is precisely controlled, and uses good hand touch；Since spring is compared with the durability higher of silica gel,
The service life of this such keyboard is longer；Make two conductive point contacts by squeezing cushion pad, ensure the uniformity of triggering；Due to
Three layers of conductive film are squeezed using shaft core contact to input come control signal, without button axle welding in the circuit board, can so be subtracted
Gap between few button axle, the size of the wiring board so used is small, reduces manufacture cost；Since this keyboard does not have metal to draw
Foot, then just do not have the risk that metal pins and hard contact are aoxidized, thus can avoid touching because of metal pins or metal completely
Point occurs caused by oxidation the phenomenon that loose contact；Since upper basement membrane and lower basement membrane are respectively provided with good insulating properties, this key
The anti-oxidant and anti-conducting liquid ability of disk is stronger, practicability higher.
In some embodiments, the lower end of first shaft core is equipped with the mounting groove that is adapted to the second shaft core, and described the
The upper end of two shaft cores is equipped with the first storage tank being adapted to the first spring, and one end of first spring is butted on the bottom of mounting groove
Portion, the other end of first spring are butted on the bottom of the first storage tank, mounting post, first bullet are equipped in the mounting groove
Spring is placed on outside mounting post, can so limit the installation site of the first spring, is assembled faster.
In some embodiments, first shaft core is located at the outside of mounting groove equipped with second be adapted to second spring
Storage tank, one end of the second spring are butted on the bottom of the second storage tank, and the other end of the second spring is butted on lower cover
Bottom can so limit the installation site of second spring, assemble more quick.
In some embodiments, the both sides of second shaft core are equipped with the lead extended transversely outward, the peace
Tankage two side is respectively equipped with guide groove, and two guide groove relative tilts are set, and second shaft core is inserted by lead and is oriented to
The lower end of the first shaft core is installed in slot, so without just the first shaft core and the second shaft core being assembled by being welded and fixed
Come, easy maintenance and replacement part.
In some embodiments, the lower end of second shaft core is additionally provided with the first block, is set on the side wall of the straight slot
There is the second block laterally inwardly stretched out, the lead is in guide groove minimum point, first block and the second block phase
Right, the lead is in guide groove peak, and first block and the second block are staggered.
In some embodiments, the side wall of second storage tank is externally provided with locating piece, is covered with and positions under described
The locating slot of block adaptation, the shaft core is caught in by locating piece in locating slot be connected with lower cover, so just can quickly by shaft core and
Lower cover assembles.
In some embodiments, the limited block to raise up is covered under described, the locating slot is arranged on limited block,
The upper cover is equipped with the limiting slot that is adapted to limited block, so just can upper cover and lower cover quickly assemble.
In some embodiments, the lower cover closes on the side wall of limited block equipped with the fixture block extended transversely outward, institute
State upper cover and be equipped with the card slot that is adapted to fixture block, the lower cover by fixture block be caught in it is removable in card slot be connected with upper cover, pass through card
Button mode assembles upper cover and lower cover, without being welded and fixed, not only reduces cost, but also conveniently keyboard is carried out maintenance and more
Change part.
In some embodiments, the dual spring mechanical film composite keyboard further includes control circuit board, the conduction
Point is connected with control circuit board.
In some embodiments, the cushion pad is inelastic silica gel cushion pad.
Description of the drawings
Fig. 1 is the exploded view of the embodiment of the utility model；
Fig. 2 is the assembling section of the embodiment of the utility model；
Fig. 3 is the superstructure figure of the embodiment of the utility model；
Fig. 4 is the shaft core exploded view of the embodiment of the utility model；
Fig. 5 is the second shaft core structure chart of the embodiment of the utility model；
Fig. 6 is the lower cover structure figure of the embodiment of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Referring to figs. 1 to Fig. 6:A kind of dual spring mechanical film composite keyboard, including button axle, cushion pad 1, conductive film and control
Circuit board processed, the button axle are arranged on cushion pad 1, and the cushion pad 1 is arranged on conductive film, and the cushion pad 1 is no bullet
The silica gel cushion pad of power.The button axle includes the lower cover 3 of upper cover 2 and 2 removable connection of upper cover and axis moving up and down
Core, the upper cover 2 have the opening 21 exposed for shaft core upper surface, and the shaft core includes the first shaft core 4, the second shaft core 5, the
One spring 6 and second spring 7, the lower end of first shaft core 4 are equipped with the mounting groove 41 being adapted to the second shaft core 5, and described second
The upper end of shaft core 5 is equipped with the first storage tank 51 being adapted to the first spring 6, and one end of first spring 6 is butted on mounting groove 41
Bottom, the other end of first spring 6 is butted on the bottom of the first storage tank 51, mounting post is equipped in the mounting groove 41
42, first spring 6 is placed on outside mounting post 42, can so be limited the installation site of the first spring 6, be assembled faster.
The both sides of second shaft core 5 are equipped with the lead 52 extended transversely outward, and 41 two side of mounting groove, which is respectively equipped with, leads
To slot 43, two guide grooves, 43 relative tilt is set, and second shaft core 5, which is inserted by lead 52 in guide groove 43, is installed on the
The lower end of one shaft core 4.The outside that first shaft core 4 is located at mounting groove 41 is equipped with the second storage tank being adapted to second spring 7
44, one end of the second spring 7 is butted on the bottom of the second storage tank 44, and the other end of the second spring 7 is butted on lower cover 3
Bottom.The side wall of second storage tank 44 is externally provided with locating piece 45, and the lower cover 3 is equipped with the locating slot being adapted to locating piece 45
31, the shaft core is caught in locating slot 31 by locating piece 45 and is connected with lower cover 3.The lower cover 3 is equipped with the /V to raise up
Block 32, the locating slot 31 are arranged on limited block 32, and the upper cover 2 is equipped with the limiting slot being adapted to limited block 32.The lower cover 3
The side wall for closing on limited block 32 is equipped with the fixture block 33 extended transversely outward, and the upper cover 2 is equipped with the card slot being adapted to fixture block 33
22, the lower cover 3 is caught in by fixture block 33 and removable in card slot 22 is connected with upper cover 2.The lower end of second shaft core 5 is equipped with the
One contact 53 and the first block 54, the upper surface of the cushion pad 1 are equipped with the second contact 11 to raise up, first contact
53 and second contact 11 face setting, the lower cover 3, which is equipped with, facilitates the straight slot 34 that the first contact 53 presses to the second contact 11,
The side wall of the straight slot 34 is equipped with the second block 35 laterally inwardly stretched out.The conductive film is included with good insulation properties
The conductiving point 81 that two basement membranes 8, the insulation diaphragm 9 and two between two basement membranes 8 are oppositely arranged, two conductiving points 81 are respectively arranged on
The inside of two basement membranes 8, the insulation diaphragm 9 are equipped with through hole 91, and 91 and two conductiving point 81 of through hole is that face is set, described
Conductiving point 81 is connected with control circuit board, and second contact 11 is arranged on the surface of conductiving point 81.
During work, downward pressure is applied to shaft core, first shaft core 4 moves down, and the lead 52 is along leading
It is moved up to slot 43, since two guide grooves 43 are that relative tilt is set, 5 opposite first shaft core 4 of the second shaft core moves up
It also rotates simultaneously, when lead 52 reaches 43 peak of guide groove, 54 and second block 35 of the first block
Staggered, so under the elastic force effect of the first spring 6, the first contact 53 just can squeeze the second contact 11, and two conductiving points 81 connect
It touches, input signal conducting；After external force is removed, since the bounce of second spring 7 acts on, the lead 52 is along guide groove
43 move down, since two guide grooves 43 are that relative tilt is set, while 5 opposite first shaft core 4 of the second shaft core moves down
Also rotate, when lead 52 reaches 43 minimum point of guide groove, 54 and second block 35 of the first block is opposite,
First contact 53 cannot squeeze the second contact 11, and two conductiving points 81 do not contact, and input signal disconnects.
The beneficial effects of the utility model are：Second spring 7 provides lower pressure, after reaching specified stroke, by the first spring 6
There is provided the first contact 53 elastic force, such spring energy is precisely controlled, and uses good hand touch；Due to spring compared with silica gel durability more
Height, the service life of this such keyboard are longer；Two conductiving points 81 are contacted by squeezing cushion pad 1, ensure the consistent of triggering
Property；It is inputted due to squeezing three layers of conductive film using shaft core contact come control signal, without button axle is welded in the circuit board, such as
This can reduce the gap between button axle, and the size of the wiring board so used is small, reduce manufacture cost；Since this keyboard does not have
Metal pins, then just there is no the risk that metal pins and hard contact are aoxidized, thus can avoid completely because of metal pins or
Hard contact occurs caused by oxidation the phenomenon that loose contact；Since upper basement membrane 8 and lower basement membrane 8 are respectively provided with good insulation
Property, the anti-oxidant and anti-conducting liquid ability of this keyboard is stronger, practicability higher.
Above-described is only the preferred embodiment of the utility model, it is noted that for the ordinary skill of this field
For personnel, on the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (10)
1. a kind of dual spring mechanical film composite keyboard, it is characterised in that：It is described including button axle, cushion pad (1) and conductive film
Button axle is arranged on cushion pad (1), and the cushion pad (1) is arranged on conductive film, and the button axle includes upper cover (2) and upper cover
(2) lower cover (3) of removable connection and shaft core moving up and down, the upper cover (2) have what is exposed for shaft core upper surface
It being open (21), the shaft core includes the first shaft core (4), the second shaft core (5), the first spring (6) and second spring (7), and described the
Two shaft cores (5) are installed on the lower end of the first shaft core (4), and one end of first spring (6) is connected with the first shaft core (4), described
The other end of first spring (6) is connected with the second shaft core (5), and one end of the second spring (7) is connected with the first shaft core (4),
The other end of the second spring (7) is connected with lower cover (3), and the lower end of second shaft core (5) is equipped with the first contact (53), institute
The upper surface for stating cushion pad (1) is equipped with the second contact (11) for raising up, first contact (53) and the second contact (11)
Setting is faced, the lower cover (3), which is equipped with, facilitates the straight slot (34) that the first contact (53) presses to the second contact (11), described to lead
Electrolemma is set relatively including two basement membranes (8) with good insulation properties, the insulation diaphragm (9) between two basement membranes (8) and two
The conductiving point (81) put, two conductiving points (81) are respectively arranged on the inside of two basement membranes (8), and the insulation diaphragm (9) is equipped with through hole
(91), the through hole (91) is that face is set with two conductiving points (81), and second contact (11) is arranged on conductiving point (81)
Surface, the shaft core move down, and first contact (53) squeezes the second contact (11), two conductiving points (81) contact.
2. dual spring mechanical film composite keyboard according to claim 1, it is characterised in that：First shaft core (4)
Lower end is equipped with the mounting groove (41) being adapted to the second shaft core (5), and the upper end of second shaft core (5) is equipped with and the first spring (6)
The first storage tank (51) of adaptation, one end of first spring (6) is butted on the bottom of mounting groove (41), first spring
(6) the other end is butted on the bottom of the first storage tank (51), and mounting post (42), first bullet are equipped in the mounting groove (41)
Spring (6) is placed on mounting post (42) outside.
3. dual spring mechanical film composite keyboard according to claim 2, it is characterised in that：First shaft core (4) position
The second storage tank (44) being adapted to second spring (7), one end of the second spring (7) are equipped in the outside of mounting groove (41)
The bottom of the second storage tank (44) is butted on, the other end of the second spring (7) is butted on the bottom of lower cover (3).
4. dual spring mechanical film composite keyboard according to claim 2, it is characterised in that：Second shaft core (5)
Both sides are equipped with the lead (52) extended transversely outward, and mounting groove (41) two side is respectively equipped with guide groove (43), and two lead
It is set to slot (43) relative tilt, second shaft core (5) is inserted into guide groove (43) by lead (52) and is installed on first
The lower end of shaft core (4).
5. dual spring mechanical film composite keyboard according to claim 4, it is characterised in that：Second shaft core (5)
Lower end is additionally provided with the first block (54), and the side wall of the straight slot (34) is equipped with the second block (35) laterally inwardly stretched out, institute
State lead (52) and be in guide groove (43) minimum point, first block (54) and the second block (35) relatively, the guiding
Column (52) is in guide groove (43) peak, and first block (54) and the second block (35) are staggered.
6. dual spring mechanical film composite keyboard according to claim 3, it is characterised in that：Second storage tank (44)
Side wall be externally provided with locating piece (45), the lower cover (3) is equipped with the locating slot (31) being adapted to locating piece (45), and the shaft core is led to
It crosses locating piece (45) and is caught in locating slot (31) and be connected with lower cover (3).
7. dual spring mechanical film composite keyboard according to claim 6, it is characterised in that：The lower cover (3) be equipped with to
The limited block (32) of upper protrusion, the locating slot (31) are arranged on limited block (32), and the upper cover (2) is equipped with and limited block (32)
The limiting slot of adaptation.
8. dual spring mechanical film composite keyboard according to claim 7, it is characterised in that：The lower cover (3) closes on limit
The side wall of position block (32) is equipped with the fixture block (33) extended transversely outward, and the upper cover (2) is equipped with the card being adapted to fixture block (33)
Slot (22), the lower cover (3) are caught in by fixture block (33) and removable in card slot (22) are connected with upper cover (2).
9. dual spring mechanical film composite keyboard according to claim 1, it is characterised in that：Further include control circuit board,
The conductiving point (81) is connected with control circuit board.
10. dual spring mechanical film composite keyboard according to claim 1, it is characterised in that：The cushion pad (1) is nothing
The silica gel cushion pad of elastic force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721445154.7U CN207425686U (en) | 2017-11-01 | 2017-11-01 | Dual spring mechanical film composite keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721445154.7U CN207425686U (en) | 2017-11-01 | 2017-11-01 | Dual spring mechanical film composite keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207425686U true CN207425686U (en) | 2018-05-29 |
Family
ID=62306873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721445154.7U Active CN207425686U (en) | 2017-11-01 | 2017-11-01 | Dual spring mechanical film composite keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207425686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036921A (en) * | 2018-08-01 | 2018-12-18 | 东莞市微技电子科技有限公司 | A kind of press-key structure |
-
2017
- 2017-11-01 CN CN201721445154.7U patent/CN207425686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036921A (en) * | 2018-08-01 | 2018-12-18 | 东莞市微技电子科技有限公司 | A kind of press-key structure |
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