CN104882318B - Press-key structure - Google Patents
Press-key structure Download PDFInfo
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- CN104882318B CN104882318B CN201510259742.0A CN201510259742A CN104882318B CN 104882318 B CN104882318 B CN 104882318B CN 201510259742 A CN201510259742 A CN 201510259742A CN 104882318 B CN104882318 B CN 104882318B
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- CN
- China
- Prior art keywords
- joint portion
- keycap
- bottom plate
- balancing pole
- press
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/12—Push-buttons
- H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
- H01H3/125—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor using a scissor mechanism as stabiliser
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/008—Actuators other then push button
- H01H2221/016—Lever; Rocker
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- Push-Button Switches (AREA)
Abstract
The present invention is on a kind of press-key structure, and it includes keycap, balancing pole, bottom plate and buffer substrate tablet, and wherein keycap has joint portion and lower surface, and joint portion is protruded from lower surface, and when keycap is pressed, keycap can be moved down into down position；Balancing pole is connected to joint portion, and when keycap is located at down position, joint portion lower extreme point is less than balancing pole；Bottom plate is arranged at below keycap, and bottom plate has dented space correspondence joint portion；Buffer substrate tablet is arranged on bottom plate, and buffer substrate tablet covers dented space and with deformable part correspondence dented space, and when keycap is moved to lower position towards bottom plate, joint portion lower extreme point compresses deformable part, and deformable part is extended into dented space.Cushioning Design of the invention by press-key structure, snubber elastomeric can be provided when button operation, the noise of keycap direct collision bottom plate generation is avoided or reduced, and by the sandwich construction formation Cushioning Design of thin film switch, effect of noise abatement can be effectively reached in the case where not increasing material cost.
Description
Technical field
The present invention relates to a kind of press-key structure, specifically, the present invention is on a kind of press-key structure with Jing Yin design
And the key board unit with this press-key structure.
Background technology
Multiple key (such as space (Space) key, carriage return (Enter) key, the capital and small letter switching (Caps of key board unit
Lock) key, displacement (Shift) key etc.) keycap there is larger length-width ratio, therefore balancing pole would generally be added to improve keycap
Structural strength.Furthermore, by the setting of balancing pole, even if when user is pressed against the non-middle position of keycap, can also make again
Number key will not produce inclination during pressing.Balancing pole typically engages and is connected to the joint portion protruded from keycap lower surface
Below keycap.When user presses keycap, with moving down for keycap, prominent joint portion can be the bottom of with below usual keycap
Plate occurs to hit and produce noise, and then influences the smooth degree and comfortableness of operation.
Therefore, how effectively to eliminate because keycap hits the noise that bottom plate is produced, actually the main themes of press-key structure design
One of.
The content of the invention
An object of the present invention is to provide a kind of effective press-key structure for eliminating operation abnormal sound.
Another object of the present invention is to provide a kind of press-key structure with Jing Yin design, it is provided when button operation
Snubber elastomeric, it is to avoid or the noise that reduction direct collision is produced.
A further object of the present invention is a kind of press-key structure with Cushioning Design of offer, and it is more using thin film switch
Rotating fields formation Cushioning Design, effect of noise abatement is effectively reached in the case where not increasing material cost.
In order to achieve the above object, the present invention proposes a kind of press-key structure, includes keycap, balancing pole, bottom plate and buffering
Piece, keycap has joint portion and lower surface, and the joint portion is protruded from the lower surface；Balancing pole is connected to the joint portion, and the knot
The lower extreme point in conjunction portion is less than the balancing pole and the coupling part of the joint portion；Bottom plate is arranged at below the keycap, and the bottom plate has
Dented space, the dented space is to should joint portion；Buffer substrate tablet is arranged on the bottom plate, the buffer substrate tablet cover the dented space and
The buffer substrate tablet has deformable part, the deformable part to should dented space, wherein when the keycap is pressed, the keycap towards this
Bottom plate is moved to down position, and the lower extreme point of the joint portion compresses the deformable part, and the deformable part is extended into this
In dented space.
As optional technical scheme, the dented space is constituted by the holes or groove for being formed at the bottom plate.
As optional technical scheme, the buffer substrate tablet is thin film switch, and the thin film switch has sandwich construction, and the film is opened
The Central Shanxi Plain it is at least one layer of to should be in dented space formation at least a film openings, and the thin film switch at least another layer of covering
An at least film openings are to constitute the deformable part.
As optional technical scheme, the deformable part includes thin-film groove, and the thin-film groove is by the film openings and covers
The part for covering the film openings is constituted, and the notch of the thin-film groove is towards the keycap or towards the bottom plate.
As optional technical scheme, the deformable part includes two thin-film grooves, and the notch of two thin-film grooves
It is respectively facing the keycap and the bottom plate.
As optional technical scheme, at least another layer total of an at least film openings is covered in the thin film switch
Thickness is not more than 0.075mm.
As optional technical scheme, the buffer substrate tablet includes thin film switch and diaphragm, and the thin film switch has through hole, and this leads to
Hole to should joint portion, the membrane covered in the lower section of the through hole and be used as the deformable part, when the keycap towards the bottom plate move
When, the joint portion compresses the diaphragm through the through hole towards the dented space, the diaphragm is extended into the dented space；Or, should
Membrane covered is used as the deformable part in the top of the through hole, and when the keycap is moved towards the bottom plate, the joint portion is recessed towards this
Sunken space compresses the diaphragm by the through hole, the diaphragm is extended into the dented space.
As optional technical scheme, the diaphragm is polyester piece or sheet rubber, and the thickness of the diaphragm is opened less than the film
The thickness of pass.
As optional technical scheme, the balancing pole includes the first balancing pole and the second balancing pole, and the joint portion includes the
One joint portion and the second joint portion, first joint portion connect first balancing pole, and second joint portion connects second balance
Bar, second balancing pole is arranged at the outside of first balancing pole and second balancing pole is connected to the keycap and the bottom
Plate, the wherein length of first joint portion are more than or equal to the length of second joint portion.
As optional technical scheme, first balancing pole has interlude and the both ends extended from the interlude two ends
Section, the two ends section and the interlude constitute U-shaped section, and are connected to the length of first joint portion of the interlude and are more than and connect
It is connected to the length of first joint portion of the end segments.
As optional technical scheme, when the keycap is located at the down position, the lower extreme point of the joint portion is less than should
Balancing pole.
As optional technical scheme, when the keycap is located at the down position, the lower extreme point of the joint portion is less than should
Balancing pole, and the balancing pole is connected to the keycap and the bottom plate.
The present invention can provide snubber elastomeric by the Cushioning Design of press-key structure when button operation, it is to avoid or reduction key
The noise that cap direct collision bottom plate is produced.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Brief description of the drawings
Figure 1A and Figure 1B are respectively the explosive view and unit assembly drawing of the press-key structure of one embodiment of the invention；
Fig. 1 C and Fig. 1 D are respectively that Figure 1A press-key structure presses the schematic cross-section after preceding and pressing；
Fig. 2A and Fig. 2 B are the schematic diagram of the joint portion of different embodiments of the invention；
Fig. 3 is the schematic diagram of the bottom plate of another embodiment of the present invention；
Fig. 4 A to Fig. 4 E are that the thin film switch of different embodiments of the invention is used as the schematic diagram of buffer substrate tablet；
Fig. 5 A and Fig. 5 B are the schematic diagram of the buffer substrate tablet of different embodiments of the invention；
Fig. 6 A and Fig. 6 B are respectively the explosive view and unit assembly drawing of the press-key structure of another embodiment of the present invention；
Fig. 6 C and Fig. 6 D are respectively that Fig. 6 A press-key structure presses the schematic cross-section after preceding and pressing；
Fig. 7 A and Fig. 7 B are respectively the explosive view and unit assembly drawing of the press-key structure of another embodiment of the present invention；
Fig. 7 C and Fig. 7 D are respectively that Fig. 7 A press-key structure presses the schematic cross-section after preceding and pressing；
Fig. 8 A and Fig. 8 B are the schematic diagram of the joint portion of different embodiments of the invention；And
Fig. 9 is the schematic diagram of the key board unit of one embodiment of the invention.
Embodiment
The present invention provides a kind of press-key structure with Jing Yin design and the key board unit with this press-key structure.It is specific and
Speech, press-key structure of the invention can be the press-key structure of computor-keyboard, but not as.The press-key structure of the present invention can be it
Button, numerical key of his electronic installation etc..The press-key structure of the present invention can be any press-key structure with joint portion, especially
Press-key structure with the joint portion being connected with balancing pole, such as multiple key, but be not limited.After using computor-keyboard as
Example, describes the details of the press-key structure of the embodiment of the present invention in detail with reference to schema.
As shown in Figure 1A and Fig. 6 A, in an embodiment, press-key structure 100/200 of the invention includes keycap 110, balancing pole
122/124th, bottom plate 130 and buffer substrate tablet 140, wherein keycap 110 are arranged at the top of bottom plate 130, and can relative on bottom plate 130/
Lower movement.Balancing pole 122 connects keycap 110, and balancing pole 122/124 typically has two effects：(1) as shown in Figure 1A, strengthen
The structural strength of keycap 110, or (2) are as shown in Figure 6A, improve the drive of keycap 110.So when user only presses keycap
During right side, it can also decline simultaneously together on the left of keycap, it is to avoid relatively low, the higher heeling condition in left side in right side is presented in keycap 110.It is slow
Punching 140 is arranged on bottom plate 130, with provide keycap 110 towards bottom plate 130 move down when shock buffer (as described later in detail).
Herein it may be noted that though Figure 1A and Figure 1B are not illustrated, according to actual design demand, press-key structure 100 can also include others portion
Part, for example, support keycap 110 relative to elevating mechanism (such as the scissors lift mechanism, butterfly liter that the up/down of bottom plate 130 is moved
Descending mechanism), provide keycap 110 press after be returned to pressing front position reply unit (such as elastic recovery unit or magnetic return
Multiple unit) etc..
In Figure 1A embodiments, balancing pole 122 is connected only to keycap 110, to increase the intensity of keycap 110.Balancing pole 122 compared with
Good is non-enclosed frame shape bar, such as has opening 122a rectangle frame balancing pole between two ends, to increase balancing pole 122
Elastomeric deformable, and then lift convenience of the balancing pole 122 when being connected with keycap 110.Furthermore, balancing pole 122 preferably has circle
It shape shaft and can be bent into, but be not limited by metal wire.In other embodiment, according to design requirement, balancing pole 122 can
Shaft with the shape such as oval, square, and can be made up to promote the intensity of keycap 110 of any suitable material.
Correspondingly, keycap 110 has joint portion 112, for connection balancing pole 122.In this embodiment, keycap 110 has
A plurality of joint portions 112, wherein the frame shape profile of the correspondence balancing pole 122 of a plurality of joint portions 112 is arranged at the following table of keycap 110
Face 110a, to connect the corresponding shaft part of balancing pole 122 respectively.In other words, the side that a plurality of joint portions 112 are distributed with frame shape
Formula is arranged at the lower surface 110a of keycap 110.Furthermore, joint portion 112 is protruded from the lower surface 110a of keycap 110.Specifically,
As shown in Figure 2 A, key skirt 111b of the keycap 110 by key top 111a and around connection key top 111a peripheries is constituted, wherein joint portion
112 extend downward beyond key skirt 111b basal surface from key top 111a lower surface 110a, and cause the lower extreme point of joint portion 112
Prominent key skirt 111b basal surface.
In an embodiment, as shown in Figure 2 A, joint portion 112 is the coupler construction with neck 112a, and neck 112a in
Coupler construction end (one end i.e. away from lower surface 110a) has neck opening 112b, enters for the shaft of balancing pole 122
Neck 112a with joint portion 112 to be connected.When balancing pole 122 from neck opening 112b enter neck 112a and with neck 112a cards
During conjunction, the lower extreme point of joint portion 112 is less than the lower extreme point of balancing pole 122.In other words, in this embodiment, neck 112a depth
(i.e. distance of the joint portion end to neck bottom) is more than the bar footpath of balancing pole 122 or thickness (by keycap 110 and bottom plate 130
The dimension of the dimension that line direction is measured, i.e. vertical direction), to cause the shaft of balancing pole 122 to be substantially placed in card completely
In groove 112a.That is, the part essence that balancing pole 122 is connected with joint portion 122 does not protrude neck 112a so that joint portion 112
Coupling part of the lower extreme point less than balancing pole 122 and joint portion 112.In this embodiment, neck opening 112b bore is preferable
For the bar footpath (i.e. the dimension of horizontal direction) less than balancing pole 122.Thereby, combined when balancing pole 122 enters neck 122a connections
During portion 112, can limiting balance bar 122 towards neck opening 112b directions movement, it is to avoid balancing pole 122 departs from joint portion 112.
Furthermore, the side wall that joint portion 112 defines neck 112a preferably has suitable thickness to provide the elasticity of deformation, promotes balancing pole
122 with the connection convenience of joint portion 112.In other words, when balancing pole 122 enters neck 112a from neck opening 112b, knot
Conjunction portion 112 define neck 112a side wall can outside elastic dilatation, with sharp balancing pole 122 entrance neck 112a.
Herein it may be noted that though Fig. 2A embodiment illustrates end (i.e. bottom surface) entrance that balancing pole 122 is self-bonding portion 112
Neck 112a is not limited with being connected with joint portion 112.In other embodiment, as shown in Figure 2 B, neck opening 112b '
Can be opened in the side of joint portion 112 ', and cause balancing pole 122 for the side in self-bonding portion 112 ' enter neck 112a ' with
Joint portion 112 ' is connected.
Furthermore, bottom plate 130 is arranged at the lower section of keycap 110, and bottom plate 130 has the knot of the correspondence keycap 110 of dented space 132
Conjunction portion 112.In this embodiment, the holes (as shown in Figure 1 C) that dented space 132 is preferably formed at bottom plate 130 is constituted, but
It is not limited.In other embodiment, as shown in figure 3, dented space 132 ' can be constituted by the groove for being formed at bottom plate 130.
When keycap 110 is moved towards bottom plate 130, dented space 132 is as the avoidance area of joint portion 112, and tolerable joint portion 112 is stretched into
Dented space 132.In this embodiment, bottom plate 130 is metallic plate, but is not limited.
As shown in Figure 1B and Fig. 1 C, buffer substrate tablet 140 is arranged on bottom plate 130, and the wherein essence of buffer substrate tablet 140 covering depression is empty
Between 132, and buffer substrate tablet 140 have deformable part 142 correspondence dented space 132.Typically can be by changing thickness, material, or outside
Shape forms the deformable part 142 on buffer substrate tablet 140 there is provided moderate finite deformation amount.For example：Deformable part 142 can be (a) thickness phase
To thin location, (b) is projected or pasted and combine at relatively soft material, or (c) has at more yielding profile, such as：The cut-out of three sides
Movable tongue.
Specifically, in preferred embodiment, the deformable part 142 of buffer substrate tablet 140 is the relatively thin part of thickness, is made
Deformable part 142 partly has larger elastic deformation force compared to other of buffer substrate tablet 140, and deformable part 142 is set
Meter may be such that buffer substrate tablet 140 is overall not because thickness is too thin and damaged, increase manufacturability.In this embodiment, deformable part 142
Thickness is preferably not more than 0.075mm, but is not limited.The deformable part 142 of buffer substrate tablet 140 is preferably covered in dented space
132, and the remainder (part in i.e. non-variable shape portion) of buffer substrate tablet 140 is covered in the backplate surface around dented space 132,
So that deformable part 142 provides the buffering that the joint portion 112 of keycap 110 is moved down by elastic deformation, to reach
Effect of noise abatement.As shown in figure iD, when keycap 110 is pressed, keycap 110 can be moved down into lower position (or under being
Decrease is put, similarly hereinafter), i.e., when keycap 110 is moved to lower position towards bottom plate 130, the lower extreme point of joint portion 112 is less than balancing pole
122, and the lower extreme point of joint portion 112 compresses deformable part 142 towards dented space 132, and then extend into deformable part 142
In dented space 132.Specifically, when keycap 110 is moved towards bottom plate 130, key of the joint portion 112 because protruding from keycap 110
Skirt 111b basal surfaces and the deformable part 142 for first hitting buffer substrate tablet 140, and then make the deformation downwards of deformable part 142 and enter bottom
The dented space 132 of plate 130.Thereby, under conditions of button height is not increased, not only the joint portion 112 of keycap 110 is had
Have it is enough move downward space, while allowing the deformable part 142 of buffer substrate tablet 140 to abut joint portion 112 as buffering elastomer
And reach effect of noise abatement.
In preferred embodiment, buffer substrate tablet 140 is thin film switch, and wherein thin film switch hollows out to form blind hole to make for part
For deformable part 142.Specifically, thin film switch has sandwich construction, at least one layer correspondence depression wherein in thin film switch
At least another layer of essence covering at least film openings that space 132 is formed in an at least film openings and thin film switch using as
Deformable part 142.In other words, at least another layer (i.e. deformable part) of an at least film openings is substantially covered in thin film switch
Gross thickness is preferably not more than 0.075mm.
For example, in an embodiment, as shown in Figure 4 A, thin film switch 140a be three-decker, wherein first layer 144 and
Third layer 148 is circuit layer, and the second layer 146 is arranged between first layer 144 and third layer 148 as intermediary layer, to separate
The circuit of first layer 144 and third layer 148.When keycap 110 is towards the movement actuating thin film switch 140a of bottom plate 130, first layer 144
Turned on the electrical contact of third layer 148, to export actuating signal.In this embodiment, thin film switch 140a first layer 144 and
The second layer 146 forms film openings 144a, 146a in the part of correspondence dented space 132, and wherein film openings 144a, 146a connects
It is logical, and third layer 148 is covered in film openings 146a lower section, to be formed in deformable part 142, wherein deformable part 142 is wrapped
Containing the thin-film groove positioned at upside, the wherein notch of thin-film groove is towards keycap 110 (i.e. to the form of lower recess).In other words,
The thickness of third layer 148 is the thickness of deformable part 142, and third layer 148 corresponding film openings 144a, 146a part are upper
The deformable part 142 stated, to be used as the buffering elastomer contacted with joint portion 112.
Herein it may be noted that when buffer substrate tablet be thin film switch when, by the sandwich construction characteristic of thin film switch, deformable part
142 can have multi-form, not to be limited shown in Fig. 4 A.In another embodiment, as shown in Figure 4 B, thin film switch 140b first layer
144 and third layer 148 in correspondence dented space 132 part formed film openings 144a, 148a, wherein film openings 144a,
148a is not connected and separated by the second layer 146.In other words, the second layer 146 is covered in the opposite of film openings 144a, 148a
Side, to be formed in deformable part 142, wherein deformable part 142 includes two thin-film grooves positioned at up/down both sides, wherein by
The notch for the thin-film groove that the film openings 144a of first layer 144 and the covering part of the second layer 146 are constituted is towards keycap 110
(i.e. to the form of lower recess), and that the covering part of the film openings 148a and the second layer 146 by third layer 148 are constituted is thin
The notch of film groove is towards bottom plate 130 (form being recessed upwards).In this embodiment, the thickness of the second layer 146 is deformable
The thickness in portion 142, and the second layer 146 corresponding film openings 144a, 148a part be above-mentioned deformable part 142, using as
The buffering elastomer contacted with joint portion 112.
In another embodiment, as shown in Figure 4 C, thin film switch the 140c second layer 146 and third layer 148 are recessed in correspondence
The part in space 132 forms film openings 146a, 148a, wherein film openings 146a, 148a connections, and first layer 144 and covered
In film openings 146a top, to be formed in deformable part 142, the film that wherein deformable part 142 is included positioned at downside is recessed
The notch of groove, wherein thin-film groove is towards bottom plate 130.In other words, the thickness of first layer 144 is the thickness of deformable part 142, and
The corresponding film openings 146a of first layer 144 part is above-mentioned deformable part 142, to be used as delaying for being contacted with joint portion 112
Rush elastomer.
In another embodiment, as shown in Figure 4 D, thin film switch 140d first layer 144 is in the portion of correspondence dented space 132
Point film openings 144a is formed, and the second layer 146 and third layer 148 are covered in film openings 144a lower section, so that be formed in can
Variant part 142, wherein deformable part 142 include the thin-film groove positioned at upside, the wherein notch of thin-film groove towards keycap
110.In other words, the gross thickness of the second layer 146 and third layer 148 be deformable part 142 thickness, preferably no more than 0.075mm,
And the second layer 146 and the corresponding film openings 144a of third layer 148 part be above-mentioned deformable part 142, using as with combination
The buffering elastomer that portion 112 is contacted.
In another embodiment, as shown in Figure 4 E, thin film switch 140e third layer 148 is in the portion of correspondence dented space 132
Point film openings 148a is formed, and first layer 144 and the second layer 146 are covered in film openings 148a top, so that be formed in can
Variant part 142, wherein deformable part 142 include the thin-film groove positioned at downside, the wherein notch of thin-film groove towards bottom plate
130.In other words, the gross thickness of first layer 144 and the second layer 146 be deformable part 142 thickness, preferably no more than 0.075mm,
And first layer 144 and the corresponding film openings 148a of the second layer 146 part be above-mentioned deformable part 142, using as with combination
The buffering elastomer that portion 112 is contacted.
In other embodiment, as shown in Fig. 5 A and Fig. 5 B, buffer substrate tablet 140 includes thin film switch 140f and diaphragm 141, its
Middle thin film switch 140f has the correspondence of through hole 149 joint portion 112, and diaphragm 141 is covered in the side of through hole 149 as deformable part
142.Thereby, when keycap 110 is moved towards bottom plate, joint portion 112 compresses diaphragm 141 by through hole 149, extends diaphragm 141
Enter dented space 132.Specifically, in Fig. 5 A embodiment, diaphragm 141 is covered in the lower section of through hole 149 as deformable part
142, so when keycap 110 is moved towards bottom plate 130, joint portion 112 compresses diaphragm through through hole 149 towards dented space 132
141, diaphragm 141 is extended into dented space 132 (being similar to Fig. 1 D).Thin film switch 140f can have similar above-mentioned multilayer knot
Structure, wherein in first layer 144, the second layer 146 and third layer 148 correspondence dented space 132 formed respectively film openings 144a,
146a, 148a, and film openings 144a, 146a, 148a connect to form through hole 149.In Fig. 5 A embodiment, diaphragm 141 covers
The lower section of through hole 149 (being covered in the lower section of third layer 148) is placed on, the part that diaphragm 141 is covered in through hole 149 (corresponds to through hole
149 part) it is above-mentioned deformable part 142, to be used as the buffering elastomer contacted with joint portion 112.In Fig. 5 B implementation
In example, diaphragm 141 is covered in the top of through hole 149 (being covered in the top of first layer 144) as deformable part 142, such diaphragm
It is available for being provided with a plurality of elastomers (rubber dome) needed for a plurality of keycaps of keyboard on 141, to facilitate once all
A plurality of elastomers are assembled into above bottom plate.That is, diaphragm 141 can be the lamellar body for connecting a plurality of elastomers.In Fig. 5 B reality
Apply in example, when keycap 110 is moved towards bottom plate 130, joint portion 112 compresses diaphragm 141 by through hole 149 towards dented space 132,
Diaphragm 141 is set to extend into dented space 132.In an embodiment, diaphragm 141 can be polyester piece or sheet rubber, and the thickness of diaphragm 141
Degree is preferably less than thin film switch 140f thickness.For example, diaphragm 141 can be mylar film (Mylar), and thickness is preferably small
In 0.075mm, but it is not limited.Herein it may be noted that when the material of deformable part 142 has moderate finite deformation elastic in itself,
The thickness of deformable part 142, which can be more than 0.075mm and be collided with joint portion 112, can still produce above-mentioned elastic deformation.
In addition, though Figure 1A, which illustrates balancing pole 122, is connected only to keycap 110, according to button size and/or design requirement,
Balancing pole can have multi-form and quantity.In another embodiment, as shown in Fig. 6 A to Fig. 6 C, press-key structure 200 of the invention
Comprising keycap 110, balancing pole 124, bottom plate 130 and buffer substrate tablet 140, wherein keycap 110, bottom plate 130 and buffer substrate tablet 140 has respectively
There are similar above-mentioned joint portion, dented space 132, the configuration of deformable part 142, and buffer substrate tablet 140 to be embodied as above-mentioned Fig. 4 A extremely
Fig. 4 E thin film switch 140a-140e, or Fig. 5 diaphragm 141 and thin film switch 140f.Explanation after focuses on the present embodiment
Difference.Specifically, balancing pole 124 is connected between keycap 110 and bottom plate 130, that is, the side of balancing pole 124 is connected to
Keycap 110, opposite side is connected to bottom plate 130, to improve the drive of keycap 110；So when user is only pressed on the right side of keycap
When, keycap left side can also decline simultaneously together, it is to avoid relatively low, the higher heeling condition in left side in right side is presented in keycap 110.In this reality
Example is applied, balancing pole 124 is U-shaped bar, and has the extension 124a, wherein extension 124a bent towards U-shaped opening in U-shaped two ends
It is used as the snap fit slideably engaged with bottom plate 130.Specifically, bottom plate 130 also has in addition to above-mentioned dented space 132
The connecting portion 134 engaged with the extension 124a of balancing pole 124.In this embodiment, connecting portion 134 be from the surface of bottom plate 130 to
The bindiny mechanism of upper bending, wherein connecting portion 134 have chute 134a.Herein it may be noted that buffer substrate tablet 140 has corresponding opening
143, to allow that connecting portion 134 stretches out from opening 143, so that the extension 124a of balancing pole 124 is slidably inserted into chute
In 134a.When keycap 110 is moved relative to bottom plate 130, extension 124a is moved in chute 134a, to promote keycap 110
Mobile balance.Corresponding to the configuration of balancing pole 124, keycap 110 has corresponding joint portion 114, for connection balancing pole
124.In this embodiment, a plurality of correspondence of joint portion 114 balancing poles 124 are arranged at the lower surface 110a of keycap 110, to connect respectively
Connect the corresponding shaft part of balancing pole 124.Similar to above-mentioned joint portion 112, lower surface 110a of the joint portion 114 from keycap 110
It is prominent, and the basal surface of the lower extreme point protrusion key skirt of joint portion 114.Herein it may be noted that joint portion 114, which can have, is similar to Fig. 2A
Or Fig. 2 B coupler construction, and make it that the lower extreme point of joint portion 114 is less than the lower extreme point of balancing pole 124, repeats no more in this.Such as
Shown in Fig. 6 D, when keycap 110 is moved to lower position (or being down position, similarly hereinafter) towards bottom plate 130, joint portion 114
Lower extreme point is less than balancing pole 124, and the lower extreme point of joint portion 114 compresses deformable part 142 towards dented space 132, and then make can
Variant part 142 extends into dented space 132.Thereby so that the joint portion 114 of keycap 110 moves downward sky with enough
Between, while allowing the deformable part 142 of buffer substrate tablet 140 to abut effect that joint portion 114 reaches noise abatement as buffering elastomer.
In another embodiment, as shown in Fig. 7 A to Fig. 7 C, press-key structure 300 of the invention includes keycap 110, balancing pole
122nd, 124 (or balancing pole 122 being referred to as the first balancing pole, balancing pole 124 is referred to as the second balancing pole, similarly hereinafter), bottom plate 130 and slow
Punching 140.In other words, press-key structure 300 of the invention has Figure 1A balancing pole 122 and Fig. 6 A balancing pole 124 simultaneously, and
There is keycap 110 plural joint portion 112,114 (or joint portion 112 is referred to as into the first joint portion, joint portion 114 is referred to as the second knot
Conjunction portion, the first joint portion 112 connects the first balancing pole 122, and the second joint portion 114 connects the second balancing pole 124, similarly hereinafter).In this
Embodiment, balancing pole 124 is preferably the outside for being arranged at balancing pole 122, to be used as the connecting rod between keycap 110 and bottom plate 130.
Furthermore, the dented space 132 of bottom plate 130 and the deformable part 142 of buffer substrate tablet 140 can have appropriate size and position, and make
The different piece of same deformable part 142 can be compressed and then make the deformation extension of deformable part 142 by obtaining neighbouring joint portion 112,114
Into same depression space 132 (as illustrated in fig. 7d), but it is not limited.In other embodiment, the dented space of bottom plate 130
132 and the deformable part 142 of buffer substrate tablet 140 can form other corresponding with joint portion 112,114, can with joint portion 112,114
Different deformable parts 142 are compressed, and then the deformation of deformable part 142 is extended into corresponding dented space 132.
In addition, in an embodiment, as shown in Figure 8 A, balancing pole 122 preferably has curved section so that balancing pole 122
Interlude 122b is less than two ends section 122c.Specifically, balancing pole 122 has interlude 122b and from interlude 122b two ends
The two ends section 122c of extension, and two ends section 122c and interlude 122b constitute U-shaped section.Corresponding to this, keycap 110 is connected
Length in interlude 122b joint portion 1121 is more than the length for the joint portion 1122 for being connected to end segments 122c, wherein combining
The position that portion 1121 is set is central close to keycap 110 compared with joint portion 1122.That is, joint portion 1121 from the lower surface of keycap 110 extremely
Distance of the distance of neck 1121a bottom more than joint portion 1122 from the lower surface of keycap 110 to neck 1122a bottom, with
So that balancing pole 122 possesses U-shaped section.
Furthermore, the length for connecting the joint portion 112 (that is, first joint portion 112) of balancing pole 122 is preferably more than (as schemed
Shown in 8B) or equal to the length of the joint portion 114 (that is, second joint portion 114) of balancing pole 124 on the outside of (as seen in figure 7 c) connection
Degree.That is, being arranged at the joint portion (such as joint portion 112) on the inside of the lower surface 110a of keycap 110 has more than or equal to outer
The length of the joint portion (such as joint portion 114) of side.
In another embodiment, as shown in figure 9, the present invention provides a kind of key board unit 10, it includes above-mentioned press-key structure
100th, 200 and/or 300.The key board unit 10 of the present invention is grasped by the Cushioning Design of press-key structure 100,200 or 300 in button
Snubber elastomeric can be provided when making, it is to avoid or the noise that reduction keycap direct collision bottom plate is produced.Furthermore, key board unit of the invention
10 form Cushioning Design by the sandwich construction of the thin film switch of press-key structure, can effectively reach and subtract in the case where not increasing material cost
The effect made an uproar.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Various corresponding changes and deformation, but these corresponding changes and deformation can be made according to the present invention by knowing those skilled in the art
The protection domain of appended claims of the invention should all be belonged to.
Claims (12)
1. a kind of press-key structure, it is characterised in that include：
Keycap, with joint portion and lower surface, the joint portion is protruded from the lower surface；
Balancing pole, is connected to the joint portion, and the lower extreme point of the joint portion is less than the balancing pole and the coupling part of the joint portion；
Bottom plate, is arranged at below the keycap, and the bottom plate has dented space, and the dented space is to should joint portion；And
Buffer substrate tablet, is arranged on the bottom plate, and the buffer substrate tablet covers the dented space and the buffer substrate tablet has deformable part, and this is variable
Shape portion to should dented space,
Wherein when the keycap is pressed, the keycap is moved to down position towards the bottom plate, and the lower extreme point of the joint portion is compressed
The deformable part, and the deformable part is extended into the dented space；
Wherein, the keycap is made up of key top and key skirt, and the key skirt is around the key top periphery is connected, and the joint portion is from the key top
Lower surface extends downward beyond the basal surface of the key skirt so that the joint portion lower extreme point is less than the basal surface of the key skirt.
2. press-key structure according to claim 1, it is characterised in that：The dented space be formed at the bottom plate holes or
Groove is constituted.
3. press-key structure according to claim 1, it is characterised in that：The buffer substrate tablet is thin film switch, thin film switch tool
Have sandwich construction, in the thin film switch it is at least one layer of to should a dented space formation at least film openings, and the film opens
At least another layer of the Central Shanxi Plain covers an at least film openings to constitute the deformable part.
4. press-key structure according to claim 3, it is characterised in that：The deformable part includes thin-film groove, and the film is recessed
Groove is by an at least film openings and covers the parts of an at least film openings and is constituted, and the notch of the thin-film groove was towards should
Keycap or towards the bottom plate.
5. press-key structure according to claim 3, it is characterised in that：The deformable part includes two thin-film grooves, and should
The notch of two thin-film grooves is respectively facing the keycap and the bottom plate.
6. press-key structure according to claim 3, it is characterised in that：An at least film openings are covered in the thin film switch
At least another layer of the gross thickness be not more than 0.075mm.
7. press-key structure according to claim 1, it is characterised in that：The buffer substrate tablet includes thin film switch and diaphragm, and this is thin
Membrane switch has through hole, the through hole to should joint portion,
The membrane covered is used as the deformable part in the lower section of the through hole, when the keycap is moved towards the bottom plate, the joint portion
The diaphragm is compressed through the through hole towards the dented space, the diaphragm is extended into the dented space；
Or, the membrane covered is used as the deformable part in the top of the through hole, when the keycap is moved towards the bottom plate, the knot
Conjunction portion compresses the diaphragm by the through hole towards the dented space, the diaphragm is extended into the dented space.
8. press-key structure according to claim 7, it is characterised in that：The diaphragm is polyester piece or sheet rubber, and the diaphragm
Thickness be less than the thin film switch thickness.
9. press-key structure according to claim 1, it is characterised in that：The balancing pole includes the first balancing pole and the second balance
Bar, the joint portion includes the first joint portion and the second joint portion, and first joint portion connects first balancing pole, second combination
Portion connects second balancing pole, and second balancing pole is arranged at the outside of first balancing pole and second balancing pole is connected respectively
In the keycap and the bottom plate, the wherein length of first joint portion is more than or equal to the length of second joint portion.
10. press-key structure according to claim 9, it is characterised in that：First balancing pole has interlude and from this
Between the two ends section that extends of section two ends, the two ends section and the interlude constitute U-shaped section, and be connected to the interlude this
The length of one joint portion is more than the length for first joint portion for being connected to the end segments.
11. press-key structure according to claim 1, it is characterised in that：When the keycap is located at the down position, the combination
The lower extreme point in portion is less than the balancing pole.
12. press-key structure according to claim 1, it is characterised in that：When the keycap is located at the down position, the combination
The lower extreme point in portion is less than the balancing pole, and the balancing pole is connected to the keycap and the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259742.0A CN104882318B (en) | 2015-05-20 | 2015-05-20 | Press-key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259742.0A CN104882318B (en) | 2015-05-20 | 2015-05-20 | Press-key structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104882318A CN104882318A (en) | 2015-09-02 |
| CN104882318B true CN104882318B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510259742.0A Active CN104882318B (en) | 2015-05-20 | 2015-05-20 | Press-key structure |
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| CN (1) | CN104882318B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI623954B (en) * | 2017-01-06 | 2018-05-11 | 致伸科技股份有限公司 | Keyboard |
| CN107492461B (en) * | 2017-07-25 | 2020-06-05 | 苏州达方电子有限公司 | Key structure |
| CN110391104A (en) * | 2018-04-20 | 2019-10-29 | 致伸科技股份有限公司 | Key board unit and its manufacturing method |
| CN110828216B (en) * | 2018-08-10 | 2022-07-01 | 致伸科技股份有限公司 | Keyboard with mute function and key structure thereof |
| CN110471561B (en) * | 2019-02-21 | 2024-01-23 | 光宝电子(广州)有限公司 | Touch control device |
| CN211604989U (en) | 2019-06-17 | 2020-09-29 | 光宝电子(广州)有限公司 | Backlight module and keyboard using same |
| CN110600308B (en) * | 2019-09-04 | 2022-06-10 | 苏州达方电子有限公司 | Key with noise reduction effect |
| CN111710547A (en) * | 2019-09-21 | 2020-09-25 | 光宝电子(广州)有限公司 | Key structure |
| CN111261442B (en) * | 2020-02-14 | 2023-11-21 | 光宝科技（常州）有限公司 | Key structure |
| CN111816244B (en) * | 2020-07-20 | 2022-10-11 | 中磊电子（苏州）有限公司 | Key module and electronic device using same |
| CN113299511A (en) * | 2020-08-10 | 2021-08-24 | 光宝科技股份有限公司 | Key structure |
| CN114334515B (en) * | 2020-09-29 | 2023-11-03 | 华为技术有限公司 | Electronic equipment, keyboard and electronic equipment assembly |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112712C (en) * | 1999-05-31 | 2003-06-25 | 明碁电脑股份有限公司 | Multiple key capable of suppressing noise in operation |
| TWM408714U (en) * | 2011-02-18 | 2011-08-01 | Wistron Corp | Input device with swing operation |
| CN202189322U (en) * | 2011-07-14 | 2012-04-11 | 精元电脑(江苏)有限公司 | Multiple push-button |
| CN202940152U (en) * | 2012-11-07 | 2013-05-15 | 苏州达方电子有限公司 | Key and keyboard |
-
2015
- 2015-05-20 CN CN201510259742.0A patent/CN104882318B/en active Active
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| CN104882318A (en) | 2015-09-02 |
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