CN108198722B - Keyboard input switch structure capable of generating mute pressing paragraph sense - Google Patents
Keyboard input switch structure capable of generating mute pressing paragraph sense Download PDFInfo
- Publication number
- CN108198722B CN108198722B CN201810051724.7A CN201810051724A CN108198722B CN 108198722 B CN108198722 B CN 108198722B CN 201810051724 A CN201810051724 A CN 201810051724A CN 108198722 B CN108198722 B CN 108198722B
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- Prior art keywords
- keyboard input
- input switch
- mute
- pressed
- switch structure
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 45
- 229920001971 elastomer Polymers 0.000 claims abstract description 34
- 239000000806 elastomer Substances 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000741 silica gel Substances 0.000 claims description 16
- 229910002027 silica gel Inorganic materials 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000000630 rising effect Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- H01H13/7065—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 characterised by the mechanism between keys and layered keyboards
- H01H13/7073—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 characterised by the mechanism between keys and layered keyboards characterised by springs, e.g. Euler springs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/036—Return force
- H01H2221/044—Elastic part on actuator or casing
Landscapes
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention discloses a keyboard input switch structure capable of generating mute pressing paragraph sense, which comprises a key cap, an upper fixed shell connected with the key cap, a key shaft connected with the upper fixed shell, a spring connected with the key shaft, a lower fixed shell connected with the key shaft, a control key switch on and off device connected with the lower fixed shell, an arch-shaped elastomer arranged on the side edge of the lower fixed shell, and a protruding bone position arranged on the key shaft, wherein the protruding bone position is in sliding connection with the arch-shaped elastomer, the key shaft moves downwards, the protruding bone position is in contact with a protruding point of the arch-shaped elastomer, and the first arc, the protruding point and the second arc of the arch-shaped elastomer are slowly graded and jumping-free steps, so that in the pressing and rising processes of a key, no clicking sound is generated between the protruding bone position and the arch-shaped elastomer, and accordingly a smooth and noise-free pressing paragraph sense is generated, and a user is given a smooth and noise-free pressing feel feedback.
Description
Technical Field
The present invention relates to a keyboard input switch structure, and more particularly, to a keyboard input switch structure for generating a mute pressed paragraph sense.
Background
There are mechanical shaft type key switches with clicking sound, which basically follow the mechanical shaft key switch technology of german patent No. US 4467160. The mechanical shaft keyboard switch structure generates pressing clicking sound based on the following implementation principle: the mechanical shaft keyboard switch structure is characterized in that a central shaft body of the mechanical shaft keyboard switch structure is provided with a movable sliding block to form a central shaft assembly, and the central shaft assembly are in clearance fit with a certain sliding distance. One side or two opposite sides of the central shaft assembly are provided with a hardware elastic sheet, a V-shaped protruding position is arranged on the hardware elastic sheet, a spring is arranged below the central shaft assembly, and when the central shaft assembly is pressed down, the protruding position with a step shape on the outer side of the sliding block is contacted with the V-shaped protruding position of the hardware elastic sheet and generates a lateral sliding force; when the protruding position of the outer side of the sliding block passes through the V-shaped protruding position of the hardware elastic sheet, the sliding block rapidly slides downwards under the reaction of the elastic force of the hardware elastic sheet, so that the buckle positioned on the upper inner side of the sliding block and the buckle positioned below the central shaft body generate rapid impact, and a crisp impact sound (Click sound) is generated. The mechanical keyboard has the advantages of being firm and durable, good in hand feeling and strong in pressing section sense; the disadvantage is that in some meeting occasions or noise is generated when the night-time operation is performed, affecting rest of others.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a keyboard input switch structure capable of generating mute pressing paragraph sense, which eliminates the clicking sound of the traditional mechanical axis key switch and has stronger pressing paragraph sense.
In order to achieve the above-mentioned objective, the present invention provides a keyboard input switch structure capable of generating a mute pressing paragraph sense, comprising a keycap, an upper fixed housing connected with the keycap, a key shaft connected with the upper fixed housing, a spring connected with the key shaft, a lower fixed housing connected with the spring, a control key switch on and off device connected with the lower fixed housing, an arched elastic body arranged at the side edge of the lower fixed housing, and a raised bone position arranged on the key shaft, wherein the raised bone position is in sliding connection with the arched elastic body.
Preferably, the arch elastic body is a metal spring plate member, the installation direction is vertical installation, the arch elastic body comprises a convex point arranged at the middle position, a first arc arranged on one side of the convex point and a second arc arranged on the other side of the convex point.
Preferably, grooves are formed in two opposite sides of the lower fixing shell.
Preferably, the key shaft further comprises sliding rails which are arranged on two opposite sides of the key shaft and correspond to the grooves.
Preferably, the key shaft comprises a central shaft, a movable slide block in sliding connection with the central shaft, the raised bone position is arranged on the movable slide block, slide rails are arranged on two opposite side surfaces of the movable slide block, grooves are formed in two opposite ends in the movable slide block, two opposite side surfaces of the central shaft are provided with a first buckle and a second buckle, and the grooves are connected with the first buckle and the second buckle.
Preferably, the key shaft comprises a central shaft and a movable slide block which is in sliding connection with the central shaft, the raised bone positions are arranged on the movable slide block, slide rails are arranged on two opposite side surfaces of the movable slide block, grooves are formed in two opposite ends in the movable slide block, raised steps are arranged on two sides of the lower end of the movable slide block, buckles are arranged on two opposite side surfaces of the central shaft, and the grooves are connected with the buckles.
Preferably, the movable slider is in a shape of a C.
Preferably, the on-off device of the control key switch is an optical control type mechanical axis keyboard input switch, which comprises a transmitting tube, a free-form surface optical prism, a combined prism in communication connection with the free-form surface optical prism, and a photoelectric receiver in communication connection with the turning prism.
Preferably, the combined prism includes a collimating lens, a turning prism, and a fresnel lens disposed thereunder.
Preferably, the on-off device of the control key switch is a metal spring contact type mechanical axis keyboard input switch, which comprises a fixed spring and a metal spring connected with the raised step.
Preferably, the arch elastic body is a metal elastic sheet member, the installation direction of the arch elastic body is transverse, the arch elastic body comprises a convex point arranged at the middle position, a first arc bent at one side of the convex point and a second arc arranged at the other side of the convex point.
Preferably, the arch-shaped elastic body is a circular metal spring elastic body, the installation direction of the arch-shaped elastic body is vertical, the arch-shaped elastic body comprises a convex point arranged at the middle position, a first arc which is bent at one side of the convex point and a second arc which is arranged at the other side of the convex point.
Preferably, the arch-shaped elastic body is a dish-shaped dome elastic body, the installation direction of the arch-shaped elastic body is vertical, the arch-shaped elastic body comprises a convex point arranged at the middle position, a first arc bent at one side of the convex point and a second arc arranged at the other side of the convex point.
Preferably, the arch elastomer is a silica gel combined elastomer, and comprises a silica gel key body and a metal elastic sheet connected with one side of the silica gel key body, wherein the metal elastic sheet comprises a convex point arranged at the middle position, a first arc arranged on one side of the convex point and a second arc arranged on the other side of the convex point.
Preferably, the connection shape between the protruding point and the first arc and the second arc is arc connection.
Preferably, the arch-shaped elastic body is in sliding connection with the raised bone position.
Preferably, the shape of the raised bone site may be circular, square, triangular or polygonal, which may be one or more.
Preferably, the arch-shaped elastic body may be plural.
Preferably, the arch elastomer is provided with a through hole, and the key shaft protruding bone position slides up and down along the through hole.
Preferably, the upper pivot of the arch elastomer is fixedly connected with the upper fixed shell, and the lower pivot of the arch elastomer is fixedly connected with the lower fixed shell.
Compared with the prior art, the invention has the beneficial effects that:
the invention comprises a keycap, an upper fixed shell connected with the keycap, a key shaft connected with the upper fixed shell, a spring connected with the key shaft, a lower fixed shell connected with the spring, a control key switch connection and disconnection device connected with the lower fixed shell, an arch-shaped elastic body arranged on the side of the lower fixed shell, and a protruding bone position arranged on the key shaft, wherein the arch-shaped elastic body comprises a protruding point, a first arc arranged on one side of the protruding point, a second arc arranged on the other side of the protruding point, the protruding bone position is in sliding connection with the arch-shaped elastic body, when the key switch is pressed down, the key shaft moves downwards, the protruding bone position is in contact with the protruding point of the arch-shaped elastic body, the protruding point moves outwards, when the protruding position of the arch-shaped elastic body moves outwards beyond the upper fulcrum and the lower fulcrum position of the key switch, the arch-shaped elastic body generates a reaction force, the key shaft rapidly slides downwards, and the protruding bone position and the second arc are gradually changed without jump steps, so that the protruding bone position and the arch bone position do not rub each other when the protruding bone position moves upwards and downwards in the pressing and lifting process, and the key is not pressed down, and noise is not generated, and noise is not felt smoothly, and noise is not felt by a user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of an isometric view of a keyboard input switch structure for generating a mute pressed paragraph sense according to a first embodiment of the present invention;
FIG. 2 is a right side view of an isometric view of a key shaft of a keyboard input switch structure for generating a mute pressed paragraph sense according to a first embodiment of the present invention;
FIG. 3 is a left side view of an isometric view of a key shaft of a keyboard input switch structure for generating a mute pressed paragraph sense according to a first embodiment of the present invention;
FIG. 4 is an isometric view of a dome shaped elastomer of a keyboard input switch structure for generating a mute pressed paragraph sense according to a first embodiment of the present invention;
FIG. 5 is a side view of a dome shaped elastomer of a keyboard input switch structure for generating a mute pressed paragraph sense according to a first embodiment of the present invention;
FIG. 6 is a top view 1 of a keyboard input switch structure for generating a mute press section sense according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along the A-A plane in FIG. 6;
FIG. 8 is a cross-sectional view taken along the B-B plane in FIG. 6;
FIG. 9 is an isometric view of a hidden upper housing of a keyboard input switch structure for generating a mute pressed paragraph sense according to a first embodiment of the present invention;
FIG. 10 is an isometric view of a combination prism of a keyboard input switch structure for generating a mute pressed paragraph sense according to a first embodiment of the present invention;
FIG. 11 is a bottom view of a combination prism of a keyboard input switch structure for generating a mute pressing paragraph sense according to a first embodiment of the present invention;
FIG. 12 is a top view 2 of a keyboard input switch structure for generating a mute pressed paragraph sense according to an embodiment of the present invention;
FIG. 13 is a cross-sectional view of the C-C plane of FIG. 12;
FIG. 14 is an exploded view of an isometric view of a keyboard input switch structure for generating a mute pressed paragraph sense according to a second embodiment of the present invention;
FIG. 15 is an isometric view of a central axis of a keyboard input switch structure for generating a mute pressed paragraph sense according to a second embodiment of the present invention;
FIG. 16 is an isometric view of a movable slider of a keyboard input switch structure for generating a mute pressed paragraph sense according to a second embodiment of the present invention;
FIG. 17 is an isometric view of a hidden upper housing of a keyboard input switch structure with a mute pressed section provided in accordance with a second embodiment of the present invention;
FIG. 18 is a top view 1 of a keyboard input switch structure for generating a mute pressing paragraph sense according to a second embodiment of the present invention;
FIG. 19 is a cross-sectional view taken along the A-A plane in FIG. 18;
FIG. 20 is a cross-sectional view taken along the B-B plane in FIG. 18;
FIG. 21 is an exploded view of an isometric view of a keyboard input switch structure that produces a mute pressed section feel in accordance with a third embodiment of the present invention;
FIG. 22 is an isometric view of an assembled view of a movable slider, an arched elastomer and a hardware dome of a keyboard input switch structure for generating a mute pressing paragraph sense according to a third embodiment of the present invention;
FIG. 23 is a front view of an assembled view of a movable slider, an arched elastic body and a hardware spring of a keyboard input switch structure for generating a mute pressing paragraph sense according to a third embodiment of the present invention;
FIG. 24 is a cross-sectional view through the center of a raised bone level of a keyboard input switch structure for generating a mute pressed paragraph sense according to a third embodiment of the present invention;
fig. 25 is a schematic diagram of a key shaft and dome-shaped elastic body of a keyboard input switch structure for generating a mute pressing paragraph sense according to a fourth embodiment of the present invention 1;
fig. 26 is a schematic diagram of a key shaft and dome-shaped elastic body of a keyboard input switch structure for generating a mute pressing paragraph sense according to a fourth embodiment of the present invention 2;
fig. 27 is a schematic diagram 1 of a key shaft and dome-shaped elastomer of a keyboard input switch structure for generating a mute pressing paragraph sense according to a fifth embodiment of the present invention;
FIG. 28 is a schematic diagram of a key shaft and dome shaped elastomer of a keyboard input switch structure for generating a mute pressing paragraph sense according to a fifth embodiment of the present invention 2;
fig. 29 is a schematic diagram of a key shaft and dome-shaped elastomer of a keyboard input switch structure for generating a mute pressing paragraph sense according to a sixth embodiment of the present invention 1;
FIG. 30 is a schematic diagram of a key shaft and dome shaped elastomer of a keyboard input switch structure for generating a mute pressing paragraph sense according to a sixth embodiment of the present invention;
FIG. 31 is a schematic diagram of a key shaft and dome shaped elastomer of a keyboard input switch structure for generating a mute pressing paragraph sense according to a seventh embodiment of the present invention;
fig. 32 is a schematic diagram of a key shaft and dome-shaped elastomer of a keyboard input switch structure for generating a mute pressing paragraph sense according to an eighth embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a keyboard input switch structure for generating a mute pressing paragraph sense.
Example 1
Referring to fig. 1 to 13, the present invention provides a keyboard input switch structure for generating a mute pressing paragraph sense, which comprises a keycap (not shown), an upper fixed housing 110 connected with the keycap, a key shaft 120 connected with the upper fixed housing 110, a spring 130 connected with the key shaft 120, a lower fixed housing 160 connected with the spring 130, a control key switch on and off device connected with the lower fixed housing 160, an arch-shaped elastic body 140 mounted on a side of the lower fixed housing 160, a protruding bone 121 mounted on the key shaft 120, the protruding bone 121 is slidably connected with the arch-shaped elastic body 140, and sliding rails 123 disposed on opposite sides of the key shaft 120 are matched with grooves 161 on opposite sides of the lower fixed housing 160 and the sliding rails 123, so as to ensure that the key shaft 120 moves up and down along a vertical direction during a pressing and lifting process.
The arch-shaped elastic body 140 is a metal elastic sheet, is placed in a vertical direction, and comprises a convex point 141 arranged at the center, a first arc 142 arranged at one side of the convex point 141, and a second arc 143 arranged at the other side of the convex point 141.
The upper pivot of the arched elastic body 140 is fixedly connected with the upper fixed housing 110, and the lower pivot of the arched elastic body 140 is fixedly connected with the lower fixed housing 160.
When the key switch is pressed down, the key shaft 120 moves downwards, the protruding rib position 121 arranged on the key shaft 120 is contacted with the protruding point 141 of the arch-shaped elastic body 140, the protruding point 141 of the arch-shaped elastic body 140 is pushed to move outwards, when the position of the protruding point 141 of the arch-shaped elastic body, which moves outwards, passes through the upper supporting point and the lower supporting point of the arch-shaped elastic body, the arch-shaped elastic body generates a reaction force, the key shaft 120 is pushed to slide down rapidly, and the protruding point 141 of the arch-shaped elastic body 140 and the first arc 142 and the second arc 143 are slowly gradually changed and have jump-free steps, so that in the pressing or rising process of the key, the protruding rib position 121 does not generate clashing impact sound with the arch-shaped elastic body 140, a noiseless pressing paragraph feel is generated, and a smooth and noiseless pressing feel feedback is realized for a user.
Further, a rectangular through hole is formed in the middle of the arched elastic body 140, and the through hole is used for guiding the protruding bone 121 to slide up and down.
The on-off device of the control key switch is an optical control type mechanical axis keyboard input switch, which comprises an emitting tube 170, a combined prism 150, a free-form surface optical prism 122 arranged on one surface of the key shaft 120 opposite to the convex rib position 121, and a photoelectric receiver 180 in communication connection with the combined prism 150.
The combined prism 150 includes a collimating lens 151, a turning prism 152, and a fresnel lens 153 disposed below the turning prism 152.
When the key is in a relaxed state, the free-form surface optical prism 122 arranged at the key shaft 120 is positioned at the upper position and is staggered with the turning prism 152, the infrared light emitted from the emitting tube 170 is collimated by the collimating lens 151 and is turned by the free-form surface optical prism 122, and then is coupled into the right prism 152, the photoelectric receiver 180 below the turning prism 152 can not receive signals, the key switch is in an off state, when the key is pressed down, the free-form surface optical prism 122 moves downwards for a distance of about 2mm to 2.2mm, at the moment, the free-form surface prism 122 is aligned with the right turning prism 152, the infrared light emitted from the emitting tube 170 is collimated by the collimating lens 151, and then is coupled into the right turning prism 152 after passing through the free-form surface optical prism 122, the turning prism 152 turns the incident light into the 90, and at the moment, the turning light is converged by the Fresnel lens 153 and then is focused in the photoelectric receiver 180 below the turning prism 152, so that a current signal is triggered, and the key switch is in a conducting state.
The free-form surface optical prism 122 is a transparent body, which is manufactured by a bicolor injection molding method, and other parts of the key shaft 120 are black or other opaque colors except the free-form surface prism 122 which is transparent.
Example two
Referring to fig. 14 to 20, the present invention provides a keyboard input switch structure for generating a mute pressing paragraph sense, and compared with the first embodiment, the key shaft of the keyboard input switch structure is divided into a central shaft 220A and a C-shaped movable slider 220B.
The keyboard input switch structure capable of generating a mute pressing paragraph sense comprises a keycap (not shown), an upper fixed shell 210 connected with the keycap, a central shaft 220A connected with the upper fixed shell 210, a C-shaped movable slide block 220B connected with the central shaft 220A in a clearance way, a convex bone position 220B-1 arranged on the movable slide block 220B, a spring 230 connected with the central shaft 220A, a lower fixed shell 260 connected with the spring 230, an arched elastic body 240 arranged on the side edge of the lower fixed shell 260, a convex bone position 220B-1 arranged on the C-shaped movable slide block 220B, and a control key switch on-off device connected with the lower fixed shell 260, wherein slide rails 220B-2 are arranged on opposite sides of the C-shaped movable slide block 220B and are matched with grooves 261 arranged on two sides of the lower fixed shell corresponding to the slide rails 220B-2, so that the central shaft 220A and the movable slide block 220B are ensured to move up and down along the vertical direction in the pressing and lifting processes.
The opposite ends in the C-shaped movable slider 220B are provided with grooves, opposite side surfaces of the central shaft 220A are provided with a first buckle 220A-1 and a second buckle 220A-2, and the grooves are connected with the first buckle 220A-1 and the second buckle 220A-2 in a matched manner, so that the C-shaped movable slider 220B and the central shaft 220A are linked together when the key is pressed down and lifted up.
The arch-shaped elastic body 240 is a metal elastic sheet, which is placed in a vertical direction and comprises a convex point 241 arranged at the central position, a first arc arranged at one side of the convex point 241 and a second arc arranged at the other side of the convex point 141.
The upper pivot of the arched elastic body 240 is fixedly connected with the upper fixed housing 210, and the lower pivot of the arched elastic body 240 is fixedly connected with the lower fixed housing 260.
When the key switch is pressed down, the central shaft 220A and the C-shaped movable slider 220B move downward, the raised rib position 220B-1 mounted on the C-shaped movable slider 220B contacts the raised point 241 of the arched elastic body 240, so as to push the raised point 241 of the arched elastic body 240 to move outwards, when the position of the raised point 241 of the arched elastic body moving outwards passes over the upper pivot and the lower pivot of the arched elastic body 240, the arched elastic body 240 generates a reaction force, so as to push the central shaft 220A and the C-shaped movable slider 220B to slide down rapidly, and the first arc and the second arc are slowly gradual and jumping-free steps, so that the key can not generate a clicking impact sound between the raised rib position 220B-1 and the arched elastic body 240 in the pressing or rising process, a noise-free pressing feel is generated, and a smooth pressing feel is realized, and a noise-free pressing feel feedback is provided for a user.
Further, a rectangular through hole is formed in the middle of the arched elastic body 240, and the through hole is used for guiding the protruding bone 220B-1 to slide up and down.
The on-off device of the control key switch is an optical control type mechanical axis keyboard input switch, which is the same as that of the first embodiment, and will not be described herein.
Example III
Referring to fig. 21 to 24, the present invention provides a keyboard input switch structure for generating a mute pressing paragraph sense, which is similar to the first and second embodiments in that the key switch on and off control device is a metal dome contact type mechanical axis keyboard input switch.
The keyboard input switch structure capable of generating a mute pressing paragraph sense comprises a keycap (not shown), an upper fixed shell 310 connected with the keycap, a central shaft 320A connected with the upper fixed shell 310, a movable slide 320B connected with the central shaft 320A in a clearance manner, a convex bone position 320B-1 arranged on the movable slide 320B, a spring 330 connected with the central shaft 320A, a lower fixed shell 360 connected with the spring 330, an arched elastic body 340 arranged on the side edge of the lower fixed shell 360, a convex bone position 320B-1 arranged on the movable slide 320B, and a control key switch on-off device connected with the lower fixed shell 360, wherein sliding rails 320B-2 are arranged on opposite side surfaces of the movable slide 320B and are matched with grooves 361 arranged on two sides of the lower fixed shell 360 corresponding to the sliding rails 320B-2, so that the central shaft 320A and the movable slide 320B are ensured to move downwards along the vertical direction in the pressing and lifting processes.
The opposite ends in the movable slider 320B are provided with slots, the two sides of the lower end of the movable slider are provided with raised steps 320B-3, and the opposite sides of the central shaft 320A are provided with slots matched with the buckles 320A-1, so that the movable slider 320B and the central shaft 320A are linked together when the key is pressed down and lifted up.
The arch-shaped elastic body 340 is a metal elastic sheet, which is placed in a vertical direction and comprises a protruding point 341 arranged at the center, a first arc arranged at one side of the protruding point 341 and a second arc arranged at the other side of the protruding point 341.
The upper pivot of the arched elastic body 340 is fixedly connected with the upper fixed housing 310, and the lower pivot of the arched elastic body 340 is fixedly connected with the lower fixed housing 360.
When the key switch is pressed down, the central shaft 320A of the key switch moves downwards with the movable slider 320B, the raised bone 320B-1 arranged on the movable slider 320B contacts with the raised point 341 of the arched elastic body 340, the raised point 341 of the arched elastic body 340 is pushed to move outwards, when the raised point 341 of the arched elastic body 340 moves outwards to pass over the upper fulcrum and the lower fulcrum of the arched elastic body 340, a reaction force is generated by the arched elastic body, the movable slider 320B is pushed to slide down rapidly, and as the raised point 340, the first arc and the second arc of the arched elastic body 340 are slowly gradually changed and have jump-free steps, the raised bone 320B-1 does not generate a bump sound of wiping during the up-down movement of the key, a noise-free pressing feel is generated, and a smooth and noise-free pressing feel feedback is realized for a user.
Further, a rectangular through hole is formed in the middle of the arched elastic body 340, and the through hole is used for guiding the protruding bone 320B-1 to slide up and down.
The control key switch on-off device is a metal spring contact type mechanical axis keyboard input switch, which comprises a fixed spring 350 and a metal spring 370 which are connected with a boss 320B-3 step, wherein a first contact 351 is arranged on the fixed spring 350, a second contact 371 is arranged on the metal spring 370, when a key is pressed down, a central shaft 320A drives a movable slide 320B to move downwards, the boss 320B-3 pushes the second contact 371 on the metal spring 370 outwards, so that the second contact 371 is separated from the first contact 351 on the fixed spring 350, and is disconnected from a key switch circuit arranged below the second contact 371, when the key is released, the central shaft 320A drives the movable slide 320B to move upwards, boss steps 320B-3 are arranged on two sides of the lower end of the movable slide 320B, and leave the metal spring 370, so that the second contact 371 is in contact with the first contact 351, and is connected with the key switch circuit arranged below the second contact 371, and is in a conducting state.
Example IV
Referring to fig. 25 and 26, the present invention provides a keyboard input switch structure for generating a mute pressing paragraph sense, and the arch-shaped elastic body 440 is disposed horizontally or obliquely, in contrast to the first to third embodiments.
The arch-shaped elastic body 440 is a thin metal spring plate and has the following shape: the vertical direction is a small arc surface protruding towards the key shaft 420, the horizontal direction is a protruding point 441 arranged at the middle position close to the protruding bone 421 of the key shaft 420, one side of the protruding point 441 is provided with a first arc, the other side of the protruding point 441 is provided with a second arc, and two ends of the arch elastic body 440 are fixed in the lower fixed shell.
When the key switch is pressed down, the key shaft 420 moves downward, the protruding rib 421 contacts with the protruding point 441 of the arch-shaped elastic body 440, the protruding point 441 is pushed to move outwards, when the protruding point 441 of the arch-shaped elastic body 440 moves outwards beyond the first fulcrum and the second fulcrum of the arch-shaped elastic body 440, a reaction force is generated by the arch-shaped elastic body 440, the key shaft 420 is pushed to slide down, a noiseless pressing paragraph feel is generated, a mute pressing feel is realized, and a smooth and noiseless pressing feel feedback is provided for a user.
Example five
Referring to fig. 27 and 28, the present invention provides a keyboard input switch structure for generating a mute pressing paragraph sense, and the dome-shaped elastic body 540 is made of a circular metal spring material, in contrast to the first to fourth embodiments.
The arch-shaped elastic body 540 is made of a circular small-diameter spring material, the diameter of the arch-shaped elastic body is 1 mm-2 mm, the arch-shaped elastic body is placed in the vertical direction and comprises a protruding point 541 arranged at the middle position, a first arc arranged on one side of the protruding point 541 and a second arc arranged on the other side of the protruding point 541, an upper supporting point of the arch-shaped elastic body 540 is fixed on the upper fixed shell, and a lower supporting point of the arch-shaped elastic body 540 is fixed on the lower fixed shell.
When the key switch is pressed down, the key shaft 520 moves downward, the protruding rib 521 contacts with the protruding point 541 of the arched elastic body 540, so as to push the protruding point 541 to move outwards, when the protruding point 541 of the arched elastic body 540 moves outwards beyond the first pivot and the second pivot of the arched elastic body 540, a reaction force is generated by the arched elastic body 540, so that the key shaft 520 is pushed to slide down, a noiseless pressing paragraph feel is generated, a mute pressing feel is realized, and a smooth and noiseless pressing feel feedback is provided for a user.
The convex rib 521 on the key shaft 520, which is in contact with the convex point 541 in the middle of the arch-shaped elastomer, is provided with a guiding slot, so that the arch-shaped elastomer 540 can just move in the guiding slot during the pressing and lifting of the key.
Example six
Referring to fig. 29 and 30, the present invention provides a keyboard input switch structure for generating a mute pressing paragraph sense, and the dome-shaped elastic body is a butterfly-shaped dome elastic body 640, in contrast to the first to fifth embodiments.
The butterfly-shaped dome elastic body 640 is a dish-shaped thin sheet, which is placed in a vertical direction, when the key switch is pressed down, the key shaft 620 moves down, the raised bone position 621 arranged on one side of the key shaft contacts with the vertex position 641 of the butterfly-shaped dome elastic body 640 arranged on one side of the lower fixed shell, the vertex 641 of the butterfly-shaped dome elastic body 640 is pushed to move outwards, when the position where the vertex 641 of the butterfly-shaped dome elastic body 640 moves outwards passes over the positions of the upper supporting point and the lower supporting point of the butterfly-shaped dome elastic body 640, a reaction force is generated by the butterfly-shaped dome elastic body, the key shaft 620 is pushed to slide down rapidly, and as the concave-convex part of the butterfly-shaped dome elastic body 640 is gradually changed slowly and has no jump step, in the press down and up processes of the key, no click sound is generated between the raised bone position 621 and the butterfly-shaped dome elastic body 640, a noiseless pressing paragraph sense is generated, a smooth pressing feel is realized, and a noise-free feedback feel is given to a user.
The butterfly pot dome elastic body 640 has an upper supporting point fixedly connected with the upper fixed shell and a lower supporting point fixedly connected with the lower fixed shell.
The butterfly pot dome elastic body 640 is provided with a rectangular through hole for guiding the protruding bone 621 to slide up and down.
Example seven
Referring to fig. 31, the present invention provides a keyboard input switch structure for generating a mute pressing paragraph sense, and the arch-shaped elastomer is a silicone composite elastomer in contrast to the first to sixth embodiments.
The silica gel combined elastomer comprises a silica gel key body 740, the silica gel key body 740 is arranged on the inner side surface of the lower fixed shell, a metal elastic sheet 750 is connected with the pressed side surface of the silica gel key body in a combined manner, when the key switch is pressed down, the key shaft 720 moves downwards, a convex bone position 721 arranged on one side surface of the key shaft 720 is contacted with the silica gel combined elastomer, the silica gel combined elastomer is pushed to move outwards and deform, when the convex bone position 721 passes over the vertex 751 of the silica gel combined elastomer, a reaction force is generated by the deformation of the silica gel key body 740, the key shaft 720 is pushed to slide downwards rapidly, and because the metal elastic sheet 750 of the silica gel combined elastomer is a step with a bent concave-convex part and has no jump, in the process of pressing down and rising the vertex, no friction impact sound is generated between the convex bone position 721 and the silica gel combined elastomer, a noiseless pressing feel is generated, and a smooth and noiseless pressing feedback is realized for a user.
The metal spring 750 has a rectangular through hole for guiding the protruding rib 721 to slide up and down.
Example eight
Referring to fig. 32, the present invention provides a keyboard input switch structure for generating a mute pressing paragraph sense, and the arch-shaped elastic body is a plurality of arch-shaped elastic bodies 840 in contrast to the first to seventh embodiments.
A boss 841 is provided at the middle of the arch-shaped elastic body 840, a first arc is provided at one side of the boss 841, and a second arc is provided at the other side of the boss.
The two opposite sides of the key shaft 820 are respectively provided with a protruding rib position 821, the protruding rib position 821 corresponds to the two arch-shaped elastic bodies 840, when the key switch is pressed down, the key shaft 820 moves downwards, the protruding rib position 821 arranged on the two opposite sides of the key shaft is simultaneously contacted with the protruding points 841 of the corresponding arch-shaped elastic bodies 840, the protruding points 841 of the arch-shaped elastic bodies are pushed to move outwards, when the position of the protruding points 841 of the arch-shaped elastic bodies 840 moving outwards passes over the positions of the upper supporting point and the lower supporting point of the arch-shaped elastic bodies 840, a reaction force is generated by the arch-shaped elastic bodies 840, the key shaft 820 is pushed to slide down rapidly, and as the protruding points 841, the first arc and the second arc of the arch-shaped elastic bodies 840 are gradually changed slowly and have no jump, in the process of pressing down or rising the key, when the protruding rib position 821 moves up and down, no wiping impact sound is generated between the protruding rib position 821 and the arch-shaped elastic bodies 840, a noise-free pressing section is generated, and a smooth pressing feeling is realized, and a user feel is free.
The keyboard input switch structure capable of generating mute pressing paragraph sense can be used for an optical (infrared) control type mechanical axis keyboard input switch and a metal spring contact type mechanical axis keyboard input switch, is mainly used for a keyboard input switch on a computer, can be applied to an input key cap switch key of a notebook computer, can also be applied to a keyboard input switch key of a desktop computer, and can also be applied to a keyboard input switch key of a tablet computer.
In summary, the invention has simple structure, eliminates the clicking sound of the traditional mechanical shaft key switch, and has stronger pressing paragraph sense.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the invention are intended to be equivalent substitutes for those that do not depart from the spirit and principles of the invention.
Claims (22)
1. The utility model provides a produce keyboard input switch structure that silence pressed paragraph felt, includes the key cap, the last fixed shell who is connected with the key cap, the key shaft who is connected with last fixed shell, the spring of being connected with the key shaft, the fixed shell under with the key shaft connection, the control key switch who is connected with fixed shell down switches on and off device, its characterized in that: the device also comprises an arch-shaped elastic body arranged on the side edge of the lower fixed shell, and a protruding bone position arranged on the key shaft, wherein the protruding bone position is in sliding connection with the arch-shaped elastic body;
the arch elastic body is a metal elastic piece component and comprises a protruding point arranged at the middle position, a first arc arranged on one side of the protruding point in a bending mode and a second arc arranged on the other side of the protruding point.
2. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the installation direction of the metal elastic sheet component is vertical installation.
3. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: grooves are formed in two opposite sides of the lower fixing shell.
4. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the key shaft also comprises sliding rails which are arranged on two opposite sides of the key shaft and correspond to the grooves.
5. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the key shaft comprises a central shaft and a movable slide block which is in sliding connection with the central shaft, wherein the protruding bone position is arranged on the movable slide block, sliding rails are arranged on two opposite side surfaces of the movable slide block, grooves are formed in two opposite ends in the movable slide block, the two opposite side surfaces of the central shaft are provided with a first buckle and a second buckle, and the grooves are connected with the first buckle and the second buckle.
6. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the key shaft comprises a central shaft and a movable slide block which is in sliding connection with the central shaft, wherein the protruding bone position is arranged on the movable slide block, slide rails are arranged on two opposite side surfaces of the movable slide block, grooves are formed in two opposite ends in the movable slide block, protruding steps are arranged on two sides of the lower end of the movable slide block, buckles are arranged on two opposite side surfaces of the central shaft, and the grooves are connected with the buckles.
7. The keyboard input switch structure of claim 6, wherein the keyboard input switch structure generates a mute pressed paragraph sense, wherein: the movable sliding block is C-shaped.
8. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the on-off device of the control key switch is an optical control type mechanical axis keyboard input switch and comprises a transmitting tube, a free-form surface optical prism, a combined prism in communication connection with the free-form surface optical prism and a photoelectric receiver in communication connection with the turning prism.
9. The keyboard input switch structure of claim 8, wherein the keyboard input switch structure generates a mute pressed paragraph sense, wherein: the combined prism comprises a collimating lens, a turning prism and a Fresnel lens arranged below the turning prism.
10. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the on-off device of the control key switch is a metal spring contact type mechanical shaft keyboard input switch and comprises a fixed spring and a metal spring which are connected with the raised step.
11. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the installation direction of the metal elastic sheet component is transverse or inclined.
12. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the arched elastic body is a round metal spring component, and the installation direction of the arched elastic body is vertical.
13. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the arched elastic body is a disc-shaped dome elastic body, and the installation direction of the arched elastic body is vertical.
14. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the arch elastomer is a silica gel combined elastomer and comprises a silica gel key body and a metal elastic sheet connected with one side of the silica gel key body.
15. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the arch elastic body is connected with the protruding bone position in a sliding way.
16. A keyboard input switch structure for generating a mute pressed paragraph sense as defined in claim 1 wherein: the shape of the raised bone site is a circle or a polygon, and one or more of the raised bone sites are formed.
17. A keyboard input switch structure for generating a mute pressed paragraph sense according to any of claims 1 to 16 wherein: the arch-shaped elastic body is provided with through holes in a first arc shape and a second arc shape, and the protruding bone positions of the key shaft slide up and down along the through holes.
18. A keyboard input switch structure for generating a mute pressed paragraph sense as claimed in any of claims 2, 11, 12, 13 or 14 wherein: the protruding point is connected with the first arc and the second arc in an arc shape.
19. The keyboard input switch mechanism of claim 18, wherein the keyboard input switch mechanism generates a mute pressed paragraph sense, wherein: the protruding point is concave, convex or plane.
20. The keyboard input switch structure of claim 17, wherein the keyboard input switch structure generates a mute pressed paragraph sense, wherein: the upper supporting point of the arch elastic body is fixedly connected with the upper fixed shell, and the lower supporting point of the arch elastic body is fixedly connected with the lower fixed shell.
21. The keyboard input switch mechanism of claim 20, wherein the keyboard input switch mechanism generates a mute pressed paragraph sense, wherein: at least one arch-shaped elastomer is arranged.
22. The keyboard input switch mechanism of claim 21, wherein the keyboard input switch mechanism generates a mute pressed paragraph sense, wherein: the arch-shaped elastomer is an elastic rubber member.
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| CN201810051724.7A CN108198722B (en) | 2018-01-17 | 2018-01-17 | Keyboard input switch structure capable of generating mute pressing paragraph sense |
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| CN201810051724.7A CN108198722B (en) | 2018-01-17 | 2018-01-17 | Keyboard input switch structure capable of generating mute pressing paragraph sense |
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| CN108198722A CN108198722A (en) | 2018-06-22 |
| CN108198722B true CN108198722B (en) | 2024-02-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110556089B (en) * | 2019-07-24 | 2022-04-29 | 中国地质大学（武汉） | Multifunctional flexible-screen electronic piano |
| CN113890524B (en) * | 2021-12-02 | 2022-02-15 | 惠州市正牌科电有限公司 | Double-touch photoelectric control keyboard switch module |
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| CN108198722A (en) | 2018-06-22 |
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