CN110189949A - Press-key structure - Google Patents
Press-key structure Download PDFInfo
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- CN110189949A CN110189949A CN201910428962.XA CN201910428962A CN110189949A CN 110189949 A CN110189949 A CN 110189949A CN 201910428962 A CN201910428962 A CN 201910428962A CN 110189949 A CN110189949 A CN 110189949A
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- China
- Prior art keywords
- magnetic
- keycap
- magnetic part
- press
- bottom plate
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Classifications
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/036—Return force
- H01H2221/04—Return force magnetic
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- Push-Button Switches (AREA)
Abstract
The present invention discloses a kind of press-key structure, and it includes keycap, bottom plate, supporting element, magnetic part, magnetic portion and switching layers.Bottom plate is set to below keycap and has cushion space；Supporting element is movably disposed between bottom plate and keycap；Magnetic part has magnetic part leading portion, magnetic part middle section and the magnetic part tail end of coupling supports；Magnetic portion is correspondingly arranged at below magnetic part and has magnetic attraction between magnetic part；Switching layer is set on bottom plate and there is part to extend the buffer part on cushion space.When pressing keycap, supporting element makes magnetic part far from magnetic portion, and magnetic part tail end is far from buffer part；When discharging keycap, magnetic attraction keeps magnetic part mobile towards magnetic portion, makes magnetic part tail end moving contact buffer part, and buffer part is deformed towards cushion space, and magnetic part middle section contacts magnetic portion to drive supporting element to support keycap upwards.Press-key structure of the invention provides buffer function before magnet assembly impinges upon one another, to slow down the abnormal sound generated when magnet assembly is in contact with each other.
Description
Technical field
The present invention relates to a kind of press-key structures, specifically, the present invention is about a kind of press-key structure with noise reduction effect.
Background technique
Known magnetic attractive button is returned after pressing by the magnetic attraction between the magnet assemblies such as magnet, iron plate, as keycap
The multiple restoring force to non-pressing position.However, when keycap is returned to non-pressing position by magnetic attraction is mobile, magnet assembly court
It moves relative to each other, then mutually hits and generate abnormal sound.Since the shock between magnet assembly is intermetallic shock, so that
Noise problem is more significant.
Summary of the invention
The purpose of the present invention is to provide a kind of press-key structures for effectively reducing operation abnormal sound.
In order to achieve the above object, the present invention proposes a kind of press-key structure, includes: keycap, bottom plate, supporting element, magnetic part,
Magnetic portion and switching layer.Bottom plate is set to below the keycap, which has cushion space；Supporting element is movably disposed in
Between the bottom plate and the keycap；Magnetic part has magnetic part leading portion, magnetic part middle section and magnetic part tail end, the magnetic part leading portion coupling
Connect the supporting element；Magnetic portion is correspondingly arranged at below the magnetic part, has magnetic attraction between the magnetic part and the magnetic portion；Switch
Layer is set on the bottom plate, which has buffer part, and the part buffer part extends on the cushion space；When the pressing key
When cap, which makes the magnetic part far from the magnetic portion, so that the magnetic part tail end is far from the buffer part；When the release keycap
When, which keeps the magnetic part mobile towards the magnetic portion, so that the magnetic part tail end elder generation moving contact buffer part, keeps this slow
It rushes portion to deform towards the cushion space, then the magnetic part middle section contacts the magnetic portion to drive the supporting element to support the key upwards
Cap.
As optional technical solution, which has ora terminalis and extension, and the extension is prominent from the ora terminalis,
When discharging the keycap, which keeps the magnetic part mobile towards the magnetic portion, and only making the extension elder generation moving contact, this is slow
Portion is rushed, deforms the buffer part towards the cushion space, which still separates with buffer part holding.
As optional technical solution, when discharging the keycap and the extension moving contact buffer part, the magnetic part
The ora terminalis and the upright projection of the buffer part towards the bottom plate it is not be overlapped.
As optional technical solution, which is bent relative to the ora terminalis towards the buffer part.
As optional technical solution, which has protrusion, bottom surface court of the protrusion from the magnetic part tail end
Buffer part protrusion.
As optional technical solution, which further has storage space and positioning region, which is set to neighbour
The opposite side of the nearly storage space, the storage space are connected to the cushion space.
As optional technical solution, which has a multilayered structure, and the buffer part be in the switching layer at least
One layer is formed.
As optional technical solution, which has switching layer ontology, and the buffer part is that opposite end connection should
The bridge joint sections of switching layer ontology a, so that opening is defined with the switching layer ontology respectively in the two sides of the buffer part jointly.
As optional technical solution, which has switching layer ontology, which is tongue piece, and the tongue piece certainly should
Switching layer ontology extends, and to have the free end of the corresponding magnetic part tail end, the free end is below the magnetic part tail end.
As optional technical solution, which has a switching layer ontology, which is bridging structure, and the bridge formation
Structure extends from the switching layer ontology, and to have the hanging middle section structure of the corresponding magnetic part tail end, the hanging middle section structure is adjacent
Below the nearly magnetic part tail end.
As optional technical solution, which has support portion, which corresponds to the local support buffer part.
As optional technical solution, the support portion towards the keycap direction protrusion so that the buffer part is compared to this
Switching layer ontology is at least partly closer to the keycap.
As optional technical solution, which has protruding portion, which prolongs from the bottom surface of the keycap towards the bottom plate
It stretches, which corresponds to the protruding portion with avoiding space, and the switching layer covers the avoiding space；It, should when pressing the keycap
Protruding portion compresses the switching layer into the avoiding space.
As optional technical solution, which further has protrusion, the protrusion from the bottom surface of the magnetic part towards this
Magnetic portion is prominent；When discharging the keycap, which is contacted by the protrusion with the magnetic portion, with support the keycap in this not
Pressing position.
In addition, the present invention also proposes another press-key structure, include: keycap, bottom plate, supporting element, magnetic part and magnetism
Portion.Bottom plate is set to below the keycap；Supporting element is movably disposed between the bottom plate and the keycap；Magnetic part couples the branch
Support member, the magnetic part have protrusion, and the protrusion is prominent from the bottom surface of the magnetic part towards the bottom plate；Magnetic portion is correspondingly arranged at the magnetic
Property part below, between the magnetic part and the magnetic portion have magnetic attraction, when pressing the keycap, which keeps the magnetic part remote
From the magnetic portion；When discharging the keycap, which keeps the magnetic part mobile towards the magnetic portion, so that the magnetic part is by this
Protrusion is contacted with the magnetic portion, to drive the supporting element to support the keycap upwards.
Compared to known techniques, press-key structure of the invention provides buffer function before magnet assembly impinges upon one another, with
Slow down the abnormal sound generated when magnet assembly is in contact with each other, is conducive to the operating experience for promoting user.
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.
Detailed description of the invention
Figure 1A is the decomposition diagram of the press-key structure of one embodiment of the invention.
Figure 1B is the press-key structure of Figure 1A without the combination diagram of the non-pressing position of keycap.
Fig. 1 C is the press-key structure of Figure 1A in the schematic cross-section of non-pressing position.
Fig. 2A is the press-key structure of Figure 1A without the combination diagram of the pressing position of keycap.
Fig. 2 B is the press-key structure of Figure 1A in the schematic cross-section of pressing position.
Fig. 3 A to Fig. 3 C is the circuit layer of alternate embodiment of the present invention and the schematic diagram of bottom plate.
Fig. 3 D is the support portion of one embodiment of the invention and the schematic cross-section of buffer part.
Fig. 4 A is the switching layer of another alternate embodiment of the present invention and the schematic diagram of bottom plate.
Fig. 4 B is the support portion of Fig. 4 A and the schematic cross-section of buffer part.
Fig. 5 A and Fig. 5 B are the schematic diagram and side view of the magnetic part of another embodiment of the present invention.
Fig. 6 A and Fig. 6 B are the schematic diagram and side view of the magnetic part of further embodiment of this invention.
Fig. 7 A and Fig. 7 B are the schematic diagram and side view of the magnetic part of still another embodiment of the present invention.
Fig. 8 A and Fig. 8 B are that the press-key structure of one embodiment of the invention is illustrated in the section of non-pressing position and pressing position
Figure.
Fig. 9 A is the decomposition diagram of the press-key structure of another embodiment of the present invention.
Fig. 9 B is the press-key structure of Fig. 9 A without the combination diagram of keycap.
Fig. 9 C is the schematic cross-section of the press-key structure of Fig. 9 A.
Specific embodiment
The present invention provides a kind of press-key structure, can be applied to any push type input equipment (such as keyboard), or integration
In any suitable electronic device (such as portable electronic devices key or laptop keyboard), it is different to reduce operation
Sound promotes operating experience.In it is rear refer to schema, the CONSTRUCTED SPECIFICATION of each component of the press-key structure for embodiment that the present invention will be described in detail and
Operation.
Figure 1A is the decomposition diagram of the press-key structure of one embodiment of the invention.Figure 1B is the press-key structure of Figure 1A without keycap
Non- pressing position combination diagram.Fig. 1 C is the press-key structure of Figure 1A in the schematic cross-section of non-pressing position.Such as Figure 1A
To shown in Fig. 1 C, in an embodiment, press-key structure 1 include keycap 10, bottom plate 20, supporting element 50, magnetic part 30, magnetic portion 22 and
Switching layer 40.Bottom plate 20 is set to 10 lower section of keycap, and bottom plate 20 has cushion space 24A.Supporting element 50 is movably arranged
Between bottom plate 20 and keycap 10.Magnetic part 30 has magnetic part leading portion 301, magnetic part middle section 302 and magnetic part tail end 303,
And 301 coupling supports 50 of magnetic part leading portion.Magnetic portion 22 is correspondingly arranged at 30 lower section of magnetic part, and magnetic part 30 and magnetic portion
There is magnetic attraction between 22.Switching layer 40 is set on bottom plate 20, and switching layer 40 has buffer part 42, and 42 part of buffer part is prolonged
Stretch in cushion space 24A.As shown in Figure 2 A and 2 B, when pressing keycap 10, supporting element 50 makes magnetic part 30 far from magnetic portion
22, so that magnetic part tail end 303 is far from buffer part 42.As shown in Figure 1B and Fig. 1 C, when discharging keycap 10, magnetic attraction makes magnetism
Part 30 is mobile towards magnetic portion 22, so that the first moving contact buffer part 42 of magnetic part tail end 303, so that buffer part 42 is towards cushion space
24A deformation, then magnetic part middle section 302 contacts magnetic portion 22 to drive the support keycap 10 upwards of supporting element 50.In addition, according to reality
Border application, press-key structure 1 may include other assemblies.For example, press-key structure 1 can further include 60 (Yu Houxiang of balancing pole
It states).
Specifically, keycap 10 can be the keycap of such as ejection formation.In an embodiment, keycap 10 is preferably along X-axis side
To and Y direction extend rectangle keycap, but not limited to this.According to practical application, keycap 10 can have different shapes, example
Such as circle geometry.Corresponding to the setting of supporting element 50 and balancing pole 60, the lower surface of keycap 10 have couplings 12,
14, that is, couplings 12,14 protrude from the lower surface of keycap 10 along Z-direction, to coupling supports 50 and balancing pole 60.It lifts
For example, couplings 12,14 can be the coupling structure with card slot.Furthermore the lower surface alternative of keycap 10 has recess
Portion 16 increases magnetic part 30 in the activity space of Z-direction to correspond to the magnetic part tail end 303 of magnetic part 30.In addition, foundation
Practical application, keycap 10 can be the transparent keycap with transmittance section, to be applied to illuminated keyboard.
Bottom plate 20 can be used as the structural strength support plate of press-key structure 1.In an embodiment, bottom plate 20 is preferably metal sheet
Be stamped and formed out, and the cushion space 24A of bottom plate 20 be preferably be formed in bottom plate 20 holes or opening constituted, but not as
Limit.It (is not painted) in other embodiments, cushion space 24A can be constituted by the groove for being formed in bottom plate 20, such as from bottom plate 20
Upper surface is to the space of lower recess.Magnetic portion 22 can be magnet or other can generate the magnet assembly of magnetic attraction with magnetic part 30,
And magnetic portion 22 is preferably positioned at bottom plate 20 by positioning mechanism.In an embodiment, bottom plate 20 preferably has positioning region 26 and receives
Receive space 24B.Positioning region 26 is positioned adjacent to the opposite side of storage space 24B, and magnetic portion 22 may be disposed at storage space
24B.In an embodiment, storage space 24B and cushion space 24A are preferably interconnected, and are the two of single space or opening 24
A adjacent part, but not limited to this.In other embodiments, storage space 24B and cushion space 24A can be sky independently
Between or be open.Positioning region 26 is preferably the L shape locating piece from 20 surface of bottom plate towards 10 bent tabs of keycap, to position magnetic portion
22.For example, positioning region 26 is preferably set to the opposite sides of storage space 24B along the y axis, and magnetic portion 22 is set to fixed
The lower section in position portion 26, so that positioning region 26 is least partially overlapped in Z-direction and Y direction with magnetic portion 22, to define magnetism
Portion 22 is in the position of the X/Y plane of bottom plate 20 and the height of Z-direction.Furthermore bottom plate 20 preferably further have interconnecting piece 27 and
Couplings 28.Interconnecting piece 27 is preferably from 20 surface of bottom plate towards the clamping type connector of 10 bent tabs of keycap, to connect branch
Support member 50.Couplings 28 are advantageously provided in the opposite sides of bottom plate 20, such as opposite sides along the x axis, and to couple
Balancing pole 60.For example, couplings 28 can be from 20 surface of bottom plate towards 10 bent tabs of keycap and with the coupling knot of card hole
Structure.
Supporting element 50 is movably disposed in bottom plate 20 and keycap 10, to support keycap 10 relative to 20 up/down of bottom plate
It is mobile.Specifically, supporting element 50 is the bracket for connecting keycap 10 and bottom plate 20, and supporting element 50 along the x axis opposite two
End has coupling part 52,54.Coupling part 52 is preferably shaft form, rotationally engages to the couplings 12 with keycap 10,
And coupling part 54 is pillar form, is movably coupled to the interconnecting piece 27 with bottom plate 20, to support keycap 10 bottom of relative to
20 up/down of plate is mobile.Supporting element 50 further has card slot 56,57, to be coupled with the magnetic part leading portion 301 of magnetic part 30,
To drive magnetic part 30 movable.
The corresponding magnetic portion 22 of magnetic part 30 is set between bottom plate 20 and keycap 10, and between magnetic part 30 and magnetic portion 22
It can produce magnetic attraction.For example, magnetic part 30 can be ironware or the sub-assembly of other materials and magnetic material.Implement in one
Example, the corresponding magnetic portion 22 of magnetic part 30 are positioned at supporting element 50, so that when magnetic part 30 and magnetic portion 22 contact, magnetic part tail
End 303 has preset amount of interference, such as, but not limited to 0.5mm in Z-direction with buffer part 42.Specifically, magnetic part 30
Along the x axis have magnetic part leading portion 301, magnetic part middle section 302 and magnetic part tail end 303, wherein magnetic part leading portion 301 to
It is coupled with supporting element 50, magnetic part middle section 302 corresponds to magnetic portion 22, and magnetic part tail end 303 corresponds to buffer part 42.Change speech
It, magnetic part leading portion 301 is respectively arranged at the opposite sides of magnetic part 30 with magnetic part tail end 303, and magnetic part middle section 302 connects
Magnetic part leading portion 301 and magnetic part tail end 303, and magnetic portion 22 is located at 302 lower section of magnetic part middle section.For example, magnetic part
30 have holding section 34,36 in magnetic part leading portion 301, respectively correspond the card slot 56,57 of supporting element 50.In an embodiment, engaging
Portion 34 is outstanding rodlike along the x axis or strip holding section, and holding section 36 is the card for being set to opposite sides along the y axis
Hook holding section.Card slot 56, and the corresponding engaging card slot 57 in holding section 36 are protruded into holding section 34, so that supporting element 50 and magnetic part 30
Form interlinked mechanism.
Furthermore in an embodiment, magnetic part tail end 303 preferably has ora terminalis 31 and extension 32, and extension 32 is from ora terminalis
31 is prominent.For example, ora terminalis 31 is the edge extended along the y axis, and extension 32 is preferably from the court along the x axis of ora terminalis 31
Outer part is prominent, so that extension 32 is least partially overlapped in the upright projection of Z-direction towards bottom plate 20 with buffer part 42, but not
As limit.
Buffer part 42 is the part for having larger elastic deformation amount compared to the other parts of switching layer 40.It generally can be by
Change thickness, material or shape, the buffer part 42 for providing moderate finite deformation amount to be formed on switching layer 40.In an embodiment, switch
Layer 40 includes switching layer ontology 41 and buffer part 42, and buffer part 42 can have larger flexible deformation compared to switching layer ontology 41
Amount.For example, buffer part 42 is integrally formed with switching layer ontology 41 and has phase by local connection switch layer ontology 41
To biggish elastic deformation amount.In this embodiment, buffer part 42 can be the bridge joint sections of opposite end connection switch layer ontology 41, with
So that opening 44,46 is defined in the two sides of buffer part 42 jointly with switching layer ontology 41 respectively.It for example, can be by cutting switch
Layer 40 forms opening 44,46, and makes the opposite end connection switch layer ontology 41 of buffer part 42.In this embodiment, buffer part
42 be the bridge joint sections extended along the y axis, and buffer part 42 is connected to switching layer ontology 41 in the opposite end of Y direction, and
Switching layer ontology 41 is separated into the opening 46 in 42 left side of opening 44 and buffer part on 42 right side of buffer part.Whereby, so that buffering
The center portion of layer 42 has relatively large elastic deformation amount relative to two sides and the coupling part of switching layer ontology 41.Again
Person, according to actual demand, buffer part 42 can be cross-placed on above the cushion space 24A of bottom plate 20 so that bottom plate 20 be adjacent to it is slow
The part for rushing space 24A can be used as the support portion 25 of support buffer part 42, adjust the elastic deformation amount of buffer part 42 whereby, such as
Part increases the structural strength of buffer part 42, reduces deflection.In addition, the opening 46 of switching layer 40 may be allowed the positioning of bottom plate 20
Portion 26 and interconnecting piece 27 pass through, and such magnetic portion 22 can protrude from switching layer 40, and interconnecting piece 27 can connect supporting element 50.
Balancing pole 60 is connected between keycap 10 and bottom plate 20, that is, the side of balancing pole 60 is connected to the coupling of keycap 10
Portion 14, the other side are connected to the couplings 28 of bottom plate 20, to improve the drive of keycap 10.So when user only presses keycap
It when right side, can also be simultaneously declined together on the left of keycap, avoid keycap 10 that lower, the higher heeling condition in left side in right side is presented.In
This embodiment, balancing pole 60 is U-shaped bar, and has the extension 62 bent towards U-shaped opening in U-shaped both ends, wherein extension 62
The hook slideably engaged as the couplings 28 with bottom plate 20.Herein it may be noted that switching layer 40 has corresponding opening 48,
To allow couplings 28 to stretch out from opening 48, so that the extension 62 of balancing pole 60 is slidably inserted into the card hole of couplings 28.
In addition, balancing pole 60 is selectivity setting, according to practical application, press-key structure may include more than one balancing pole 60 or not set
Balancing pole is set, not to be limited shown in embodiment.
In the rear operation for illustrating press-key structure 1 with reference to Fig. 2A and Fig. 2 B.As shown in Figure 2 A and 2 B, when pressing keycap 10
When, supporting element 50 makes magnetic part 30 far from magnetic portion 22, and magnetic part tail end 303 is far from buffer part 42.Specifically, when applying
Pressing force when being greater than magnetic attraction between magnetic portion 22 and magnetic part 30, keycap 10 moves down and drives supporting element 50 and flat
Weighing apparatus bar 60 rotates down, and generates trigger signal with trigger switch layer 40 (such as switching circuit conducting in switching layer ontology 41).
In other words, when keycap 10 moves down trigger switch layer 40, supporting element 50 to be at coupling part 54 and the coupling of interconnecting piece 27
Fulcrum so that the side with card slot 56,57 of supporting element 50 rotates down, and drive magnetic part 30 have holding section 34,
36 side (i.e. magnetic part leading portion 301) also rotates down, so that magnetic part middle section 302 and magnetic part tail end 301 are corresponding
It is rotated up far from magnetic portion 22, and 301 part of magnetic part tail end is placed in the recessed portion 16 of keycap 10.For example, magnetic
Part tail end 301 is corresponding to be rotated up far from magnetic portion 22, so that extension 32 also far from buffer part 42 and is partially placed in keycap
10 recessed portion 16.
As shown in Figure 1B and Fig. 1 C, when discharging keycap 10, magnetic attraction makes magnetic part 30 mobile towards magnetic portion 22, so that
The first moving contact buffer part 42 of magnetic part tail end 303, and buffer part 42 is deformed towards cushion space 24A, then magnetic part middle section 302
Contact magnetic portion 22 makes keycap 10 be supported on non-pressing position to drive the support keycap 10 upwards of supporting element 50.Specifically,
When removal is applied to the pressing force of keycap 10, the magnetic attraction between magnetic part 30 and magnetic portion 22 makes magnetic part 30 towards magnetism
Portion 22 rotates, that is, magnetic part middle section 302 and magnetic part tail end 303 move down, and magnetic part 30 has holding section 34,36
Side (i.e. magnetic part leading portion 301) move up and driving support member 50 moves up, to drive keycap 10 to move away from bottom
Plate 20, and drive supporting element 50 to support keycap 10 in non-pressing position upwards by magnetic part 30 and the magnetic attraction of magnetic portion 22.
Herein it should be noted that when magnetic part 30 is mobile towards magnetic portion 22, when being contacted due to magnetic part 30 with magnetic portion 22, magnetic part tail end
303 (such as extensions 32) have preset amount of interference, therefore magnetic part middle section 302 and magnetism in Z-direction with buffer part 42
When part tail end 303 moves down, magnetic part tail end 303 (such as extension 32) is in magnetic part 30 (such as magnetic part middle section 302)
Buffer part 42 will be first touched before contacting with magnetic portion 22, and is made by buffer part 42 towards the buffering that cushion space 24A is deformed
With so that magnetic part 30 edges down upon magnetic portion 22, then magnetic part middle section 302 contacts magnetic portion 22, can avoid magnetism whereby
30 rapid shock magnetic portion 22 of part and generated abnormal sound when contact is effectively reduced.
Furthermore in an embodiment, when discharging keycap 10, magnetic attraction keeps magnetic part 30 mobile towards magnetic portion 22, preferably only
So that the first moving contact buffer part 42 of extension 32, deforms buffer part 42 towards cushion space 24A, and ora terminalis 31 still with buffer part
42 keep separation.For example, as shown in the partial enlarged view of Figure 1B, when release keycap 10 and 32 moving contact of extension is buffered
When portion 42, the ora terminalis 31 and the upright projection of buffer part 42 towards bottom plate 20 of magnetic part 30 be not be overlapped.In other words, magnetic part 30 and magnetic
Property portion 22 when contacting (when press-key structure 1 is located at non-pressing position), magnetic part 30 preferably only extension 32 and buffer part 42 in Z
Axis direction has contact, and the other parts of magnetic part 30 do not compress buffer part 42 in Z-direction, such as magnetic in the X-axis direction
Preferably with gap between the ora terminalis 31 and buffer part 42 of part 30, extension 32 and buffer part 42 can be promoted whereby in Z-direction
The control of amount of interference, but not limited to this.It, also can be by variation magnetic part tail end 303 herein it should be noted that in other embodiments
Design so that the ora terminalis 31 of magnetic part 30 can be locally be overlapped with buffer part 42 in the Z-axis direction, but the ora terminalis 31 of magnetic part 30 and
Buffer part 42 maintains gap, that is, only extension 32 contacts buffer part 42, can also promote magnetic part tail end 303 and buffer part 42
In the control of the amount of interference of Z-direction.
Herein it should be noted that buffer part there can be different designs, it is not limited with above-mentioned bridge joint sections.Such as Fig. 3 A to Fig. 3 C institute
Show, in Yu Butong embodiment, buffer part 42A, 42B can be tongue piece, and buffer part 42C can be bridging structure.Tongue piece is from switching layer
Ontology 41 extends, and to have the free end 421,422 of corresponding magnetic part tail end 303, and bridging structure prolongs from switching layer ontology 41
Stretch the hanging middle section structure 423 to have corresponding magnetic part tail end 303.In other words, buffer part 42A, 42B (i.e. tongue piece) only side
Be connected to switching layer ontology 41, and in another opposite end of the connecting pin of buffer part 42A, 42B be free end 421,422, and from
By end 421,422 below magnetic part tail end 303 (such as extension 32).Buffer part 42C (i.e. bridging structure) is two sides company
It is connected to switching layer ontology 41, bridging structure middle section is hanging middle section structure 423, and hanging middle section structure 423 is neighbouring magnetic part
Below tail end 303 (such as extension 32).Whereby, free end 421,422 or hanging middle section structure 423 are relative to switching layer ontology
41 have biggish elastic deformation amount.As shown in Figure 3A, buffer part 42A is along the x axis from switching layer ontology 41 towards extension
The tongue piece that 32 directions extend.As shown in Figure 3B, buffer part 42B is along the y axis from switching layer ontology 41 towards 32 direction of extension
The tongue piece of extension.Furthermore as shown in Figure 3 C, buffer part 42C is the bridging structure with opening 424, with increased flexible deformation
Amount.
Furthermore as shown in Fig. 3 A to Fig. 3 C, bottom plate 20 can have various forms of support portions 25, and the corresponding office of support portion 25
Portion supports buffer part 42A, 42B, 42C, adjusts the elastic deformation amount of buffer part 42 whereby.For example, in Fig. 3 A to Fig. 3 C, branch
Support part 25 is the elongated support stick extended in cushion space 24A, and Chong Die with extension 32 in avoiding in Z-direction, but in Z
Keep least partially overlapped with buffer part 42A, 42B, 42C in axis direction, but not limited to this.It (is not shown in other embodiments
Show), support portion can be the support construction for the extension that interlocks with buffer part, with local support buffer part, and then modify the bullet of buffer part
Property deflection.Furthermore as shown in Figure 3D, in the embodiment shown in Fig. 3 A to Fig. 3 C, support portion 25 is to prolong from 20 level of bottom plate
It stretches, so that buffer part 42A, 42B, 42C are parallel with 41 essence of switching layer ontology, but not limited to this.
In another embodiment, as shown in fig. 4 a and fig. 4b, support portion 25A towards keycap 10 direction protrusion so that buffering
Portion 42A is compared to switching layer ontology 41 at least partly closer to keycap 10.Specifically, support portion 25A be from bottom plate 20 upward
Inclination extends, so that buffer part 42A is also tilted upwards by the support of support portion 25A, so that the free end 421 of buffer part 42A
It is risen towards the direction of keycap 10, and protrudes from switching layer ontology 41.Whereby, (such as the extension of magnetic part tail end 303 can be changed
32) with buffer part 42A in the amount of interference of Z-direction.Though buffer part 42C also can be by above-mentioned support herein it should be noted that not being painted
The support of portion 25A tilts upwards, and hanging middle section structure 423 is risen towards the direction of keycap 10, and protrudes from switching layer sheet
Body 41.
In other embodiments, press-key structure can be changeable magnetic by the design for changing magnetic part tail end or extension
Part tail end and buffer part are in the default amount of interference of Z-direction.As shown in Fig. 5 A and Fig. 5 B, in another embodiment, extension 32A phase
Ora terminalis 31 is bent towards buffer part 42.Specifically, extension 32A is prominent from the extension of ora terminalis 31 and downward towards 31 direction of ora terminalis
Bending, so that accompanying the angle theta less than 180 degree between extension 32A and magnetic part 30.Also that is, extension 32A is relative to buffering
Portion 42 is arranged at position (such as X-direction) and tilts down, and extension 32A changeable whereby and buffer part 42 are in Z-direction
Default amount of interference (such as reducing default amount of interference).As shown in Fig. 6 A and Fig. 6 B, in another embodiment, magnetic part tail end 303 has
There is protrusion 321, and protrusion 321 is raised from the bottom surface of magnetic part tail end 303 towards buffer part 42.Specifically, protrusion 321 is settable
In extension 32, and from the bottom surface of extension 32 322 along Z-direction towards lower convexity, extension 32 and buffer part can be reduced whereby
42 in the default amount of interference of Z-direction.For example, extension 32 can be made to be partially formed concave and downward convex by processing technology
The protrusion 321 of (i.e. upper surface recess and lower surface protrusion), but not limited to this.Protrusion 321 can also connect by engaging, sticking together etc.
Conjunction mode is set to the bottom surface 322 of extension 32B, and its material can be such as rubber, polymer elastomeric material or other conjunctions
Suitable material.Though herein it should be noted that being painted the bottom surface 322 that protrusion 321 is set to extension 32 and position in ora terminalis 31 in this embodiment
Outside, but not limited to this.It (is not painted) in other embodiments, the design of extension can be changed, so that magnetic part tail end
The ora terminalis of ora terminalis and extension is substantially identical, and the bottom surface of the settable magnetic part tail end in protrusion 321 and on the inside of its ora terminalis.
As shown in figs. 7 a and 7b, in another embodiment, magnetic part 30 further has protrusion 38, and protrusion 38 is certainly magnetic
The bottom surface 33 of part 30 is prominent towards magnetic portion 22.When discharging keycap 10, magnetic part 30 is contacted by protrusion 38 with magnetic portion 22, with
Supporting element 50 is driven to support keycap 10 in non-pressing position upwards.Specifically, protrusion 38 is preferably partially disposed at along the y axis
The bottom surface 33 in magnetic part middle section 302 so that magnetic part middle section 302 and magnetic portion 22 are point contact, reduce whereby magnetic part 30 with
The contact area of magnetic portion 22, and then reduce the abnormal sound generated when magnetic part 30 is contacted with magnetic portion 22.It for example, can be by
Processing technology makes magnetic part 30 be partially formed the protrusion 38 of upper surface recess and lower surface protrusion in magnetic part middle section 302.In
Other embodiments, the bottom surface 33 that protrusion 38 can be set to magnetic part middle section 302 by the junctures such as engaging, sticking together, and its material
Material can be such as rubber, polymer elastomeric material or other suitable materials.
In an embodiment, as shown in Fig. 8 A and Fig. 8 B, keycap 10 further has protruding portion 18, and protruding portion 18 is from keycap
10 bottom surface extends towards bottom plate 20.The corresponding protruding portion 18 of bottom plate 20 has avoiding space 29, and switching layer 40 covers avoiding space
29.When pressing keycap 10, protruding portion 18 compresses switching layer 40 and enters avoiding space 29.Specifically, the covering of switching layer 40 is kept away
The part in space 29 is allowed to be preferably deformable part 49.For example, the deformable part 49 of switching layer 40 can be relatively thin for thickness
Part or be locally-attached part so that deformable part 49 compared to switching layer 40 other parts have biggish elasticity
Deflection, and the design of deformable part 49 may make switching layer 40 whole not because thickness is too thin and damaged, increase manufacturability.It opens
The part for closing the connection deformable part 49 of layer 40 is covered in the backplate surface around avoiding space 29, so that deformable part 49 is by bullet
Property deformation and the buffering that the protruding portion 18 of keycap 10 moves down is provided, the effect of to reach noise abatement.
Specifically, keycap 10 can be moved down into lower position, the lower extreme point court of protruding portion 18 when pressing keycap 10
Avoiding space 29 compresses deformable part 49, and then extends into deformable part 49 in avoiding space 29.Whereby, it presses not increasing
Under conditions of key height, not only make the protruding portion 18 of keycap 10 have it is enough move downward space, while allowing switching layer 40
Deformable part 49 abut the effect of reaching noise abatement as buffering elastomer of protruding portion 18.
At this it should be noted that in above-described embodiment, switching layer 40 has multilayered structure, and (or the deformable part of buffer part 42
49) at least one layer of formed is preferably in switching layer 40.For example, switching layer 40 can be three-decker, at the middle and upper levels and under
Layer is circuit layer, and middle layer is set between upper layer and lower layer, the intermediary layer as the circuit for separating upper layer and lower layer.When
When keycap 10 moves trigger switch layer 40 towards bottom plate 20, upper layer is connected with the electrical contact of lower layer, to export trigger signal.Buffering
Portion 42 (or deformable part 49) can be by more than the upper layer of switching layer 40, middle layer and lower layer's any layer being constituted, so that buffer part
42 (and deformable parts 49) can have suitable elastic deformation amount according to actual demand.
Fig. 9 A to Fig. 9 C is the schematic diagram of the press-key structure of another embodiment of the present invention, and wherein Fig. 9 A is key of the invention
The decomposition diagram of structure；Fig. 9 B is the press-key structure of Fig. 9 A without the combination diagram of keycap；Fig. 9 C is the press-key structure of Fig. 9 A
Schematic cross-section.If Fig. 9 A is extremely and shown in Fig. 9 C, press-key structure 1 ' includes keycap 10, bottom plate 20, supporting element 50, magnetic part
30 ' and magnetic portion 22.Bottom plate 20 is set to 10 lower section of keycap.Supporting element 50 be movably disposed in bottom plate 20 and keycap 10 it
Between.30 ' coupling supports 50 of magnetic part, and magnetic part 30 ' has protrusion 38, protrusion 38 is from the bottom surface of magnetic part 30 ' towards bottom plate
20 is prominent.Magnetic portion 22 is correspondingly arranged at 30 lower section of magnetic part, and has magnetic attraction between magnetic part 30 and magnetic portion 22.When pressing
When pressing keycap 10, supporting element 50 makes magnetic part 20 ' far from magnetic portion 22.When discharging keycap 10, magnetic attraction makes 30 ' court of magnetic part
Magnetic portion 22 is mobile, so that magnetic part 30 ' is contacted by protrusion 38 with magnetic portion 22, to drive the support keycap upwards of supporting element 50
10 in non-pressing position.
For example, magnetic part 30 can be made to be partially formed the protrusion 38 of concave and downward convex by processing technology, but be not limited to
This.In other embodiments, the bottom surface 33 that protrusion 38 also can be set to magnetic part 30 by the modes such as engaging, sticking together, and its material
It can be such as rubber, polymer elastomeric material or other suitable materials.Press-key structure 1 ' by magnetic part 30 ' protrusion 38 with
22 point contact of magnetic portion reduces the contact area of magnetic part 30 ' and magnetic portion 22 whereby, and then reduces magnetic part 30 and magnetic portion
The abnormal sound generated when 22 contact.Herein it should be noted that according to practical application, press-key structure 1 ' may include other assemblies, such as switch
Layer 40, balancing pole 60 etc., and the CONSTRUCTED SPECIFICATION of each component of press-key structure 1 ' and its variation can refer to above-mentioned reality with connection relationship
The related description for applying example, repeats no more in this.
Compared to known techniques, press-key structure of the invention provides buffer function before magnet assembly impinges upon one another, with
Slow down the abnormal sound generated when magnet assembly is in contact with each other, is conducive to the operating experience for promoting user.
By the above detailed description of preferred embodiments, it is intended to more clearly describe feature and spirit of the invention,
And not protection scope of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its purpose
It is intended to cover various changes and has being arranged in the scope of protection of the claims of the invention to be applied of equality.Cause
This, scope of protection of the claims of the invention should illustrate the most wide explanation of work according to above-mentioned, to cause it to cover institute
Possible change and the arrangement of tool equality.
Claims (15)
1. a kind of press-key structure, it is characterised in that include:
Keycap；
Bottom plate is set to below the keycap, which has cushion space；
Supporting element is movably disposed between the bottom plate and the keycap；
Magnetic part, has magnetic part leading portion, magnetic part middle section and magnetic part tail end, which couples the supporting element；
Magnetic portion is correspondingly arranged at below the magnetic part, has magnetic attraction between the magnetic part and the magnetic portion；And
Switching layer is set on the bottom plate, which has buffer part, and the part buffer part extends on the cushion space；
When pressing the keycap, which makes the magnetic part far from the magnetic portion, so that the magnetic part tail end is far from the buffering
Portion；
When discharging the keycap, which keeps the magnetic part mobile towards the magnetic portion, so that first movement connects the magnetic part tail end
The buffer part is touched, deforms the buffer part towards the cushion space, then the magnetic part middle section contacts the magnetic portion to drive the branch
Support member supports the keycap upwards.
2. press-key structure according to claim 1, it is characterised in that: the magnetic part tail end has ora terminalis and extension, should
Extension is prominent from the ora terminalis, and when discharging the keycap, which keeps the magnetic part mobile towards the magnetic portion, only this is prolonged
The extending portion elder generation moving contact buffer part deforms the buffer part towards the cushion space, which still separates with buffer part holding.
3. press-key structure according to claim 2, it is characterised in that: when the release keycap and the extension moving contact should
When buffer part, ora terminalis and the upright projection of the buffer part towards the bottom plate of the magnetic part be not be overlapped.
4. press-key structure according to claim 2, it is characterised in that: the extension is curved towards the buffer part relative to the ora terminalis
Folding.
5. press-key structure according to claim 1, it is characterised in that: the magnetic part tail end has protrusion, which certainly should
The bottom surface of magnetic part tail end is raised towards the buffer part.
6. press-key structure according to claim 1, it is characterised in that: the bottom plate further has storage space and positioning
Portion, the positioning region are positioned adjacent to the opposite side of the storage space, which is connected to the cushion space.
7. press-key structure according to claim 1, it is characterised in that: the switching layer has multilayered structure, and the buffer part
It is formed by at least one layer in the switching layer.
8. press-key structure according to any one of claims 1 to 7, it is characterised in that: the switching layer has switching layer ontology,
And the buffer part is that opposite end connects the bridge joint sections of the switching layer ontology so that the two sides of the buffer part respectively with the switch
Layer ontology defines an opening jointly.
9. press-key structure according to any one of claims 1 to 7, it is characterised in that: the switching layer has switching layer ontology,
The buffer part is tongue piece, and the tongue piece extends from the switching layer ontology, should be certainly to have the free end of the corresponding magnetic part tail end
By holding below the neighbouring magnetic part tail end.
10. press-key structure according to any one of claims 1 to 7, it is characterised in that: the switching layer has switching layer sheet
Body, which is bridging structure, and the bridging structure extends from the switching layer ontology, to have the corresponding magnetic part tail end
Hanging middle section structure, the hanging middle section structure is below the magnetic part tail end.
11. press-key structure according to any one of claims 1 to 7, it is characterised in that: the bottom plate has support portion, the branch
Support part corresponds to the local support buffer part.
12. press-key structure according to claim 11, it is characterised in that: the support portion towards the keycap direction protrusion, with
So that the buffer part is compared to the switching layer ontology at least partly closer to the keycap.
13. press-key structure according to claim 11, it is characterised in that: the keycap has protruding portion, which certainly should
The bottom surface of keycap extends towards the bottom plate, which corresponds to the protruding portion with avoiding space, and the switching layer covers evacuation sky
Between；When pressing the keycap, which compresses the switching layer into the avoiding space.
14. press-key structure according to claim 11, it is characterised in that: the magnetic part further has protrusion, the protrusion
It is prominent from the bottom surface of the magnetic part towards the magnetic portion；When discharging the keycap, which connects by the protrusion and the magnetic portion
Touching, to support the keycap in the non-pressing position.
15. a kind of press-key structure, it is characterised in that include:
Keycap；
Bottom plate is set to below the keycap；
Supporting element is movably disposed between the bottom plate and the keycap；
Magnetic part couples the supporting element, which has protrusion, and the protrusion is prominent from the bottom surface of the magnetic part towards the bottom plate；
And
Magnetic portion is correspondingly arranged at below the magnetic part, has magnetic attraction between the magnetic part and the magnetic portion,
When pressing the keycap, which makes the magnetic part far from the magnetic portion；
When discharging the keycap, which keeps the magnetic part mobile towards the magnetic portion so that the magnetic part by the protrusion with
Magnetic portion contact, to drive the supporting element to support the keycap upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428962.XA CN110189949B (en) | 2019-05-22 | 2019-05-22 | Key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428962.XA CN110189949B (en) | 2019-05-22 | 2019-05-22 | Key structure |
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| Publication Number | Publication Date |
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| CN110189949A true CN110189949A (en) | 2019-08-30 |
| CN110189949B CN110189949B (en) | 2022-01-14 |
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| CN201910428962.XA Active CN110189949B (en) | 2019-05-22 | 2019-05-22 | Key structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491707A (en) * | 2019-08-16 | 2019-11-22 | 苏州达方电子有限公司 | Magnetic key |
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| CN110189949B (en) | 2022-01-14 |
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