CN110391106A - Key board unit - Google Patents
Key board unit Download PDFInfo
- Publication number
- CN110391106A CN110391106A CN201810358695.9A CN201810358695A CN110391106A CN 110391106 A CN110391106 A CN 110391106A CN 201810358695 A CN201810358695 A CN 201810358695A CN 110391106 A CN110391106 A CN 110391106A
- Authority
- CN
- China
- Prior art keywords
- key
- rod body
- bottom plate
- keycap
- board unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/002—Calculator, computer
Abstract
The present invention provides a kind of key board unit, including key bottom plate, the film circuit board being set on key bottom plate, it is connected to the key and buffer part of key bottom plate, key includes keycap and the balancing pole that is connected between keycap and key bottom plate, balancing pole includes main rod body, the first interspersed body of rod and the first connecting rod body being connected between main rod body and the first interspersed body of rod, buffer part is set to the lower section on key bottom plate or film circuit board and being located at first connecting rod body, when keycap moves down relative to key bottom plate, the fulcrum that buffer part is in contact as the first connecting rod body with balancing pole, and then the main rod body of balancing pole and the skirt of keycap is avoided to generate the sound because hitting key bottom plate or film circuit board.
Description
Technical field
The present invention relates to the field of input unit more particularly to a kind of key board units.
Background technique
The input unit of common computer peripheral includes mouse apparatus, key board unit 1 and Trackball device etc., wherein key
Disk device, which is available for users to, is directly input to computer for text and symbol, therefore is quite taken seriously.
The structure and function for illustrating known key board unit 1 first, please refer to FIG. 1 to FIG. 3, and Fig. 1 is known key board unit
Surface structure schematic diagram, Fig. 2 be Fig. 1 shown in key board unit part-structure in the perspective exploded view at a visual angle, Fig. 3 is
The part-structure of key board unit shown in Fig. 1 is in the perspective exploded view at an another visual angle.In order to more clearly illustrate, Fig. 2 with
Single key 10 ' and related elements structure are only drawn in Fig. 3.Well known key board unit 1 includes multiple keys 10,10 ', key bottom
Plate 11 and film circuit board 12, and there are the multiple thin film switches for corresponding to multiple keys 10,10 ' on film circuit board 12
121, and key 10,10 ' includes keycap 101, scissor connecting element 102 and elastomer 103；Wherein, keycap 101 includes lid
Body 1016 and the skirt 1017 for being connected to 1016 periphery of lid and extending downwardly, and scissor connecting element 102 is then connected to
Between the lower surface and key bottom plate 11 of the lid 1016 of keycap 101, and including the first frame 1021 and it is articulated in first
Second frame 1022 of frame 1021, therefore the first frame 1021 can be swung opposite to each other with the second frame 1022.In addition, elastic
Body 103 is set between keycap 101 and key bottom plate 11, and has top 1031.
When moving down when the keycap 101 of any key 10,10 ' is touched relative to key bottom plate 11, scissor company
The first frame 1021 and the second frame 1022 for connecing element 102 can be changed to closed state by folding condition, and move down
Keycap 101 can squeeze elastomer 103, support the top 1031 of elastomer 103 and trigger corresponding thin film switch 121,
And key board unit 1 is made to generate corresponding push button signalling.And when key 10,10 ' is no longer touched, keycap 101 can be according to bullet
Property body 103 elastic force and up moved relative to key bottom plate 11, the first frame 1021 and the second frame 1022 can be by this time
Closed state is changed to folding condition, and keycap 101 can set back.
Furthermore key 10 ' of certain length L1 greater than width W1 further includes two balancing poles 104, and each balancing pole 104
Two hook parts 1042 including main rod body 1041 and the both ends for being located at main rod body 1041.In addition, key bottom plate 11 includes
Upwardly extend and pass through the first connection structure 111 and the second connection structure 112 of film circuit board 12, and the first connection structure
There are two the first hook holes 1111 for 111 tools, and the second connection structure 112 has correspond to two first hook holes 1111 respectively two
A second hooks hole 1121.Wherein, the main rod body 1041 of each balancing pole 104 is articulated in the keycap 101 of key 10 ', and each flat
Two hook parts 1042 of weighing apparatus bar 104 are each passed through the first hook hole 1111 and the second connection structure 112 of the first connection structure 111
Second hook hole 1121.
Referring to Fig. 4, its illustrative view for the balancing pole of key board unit shown in Fig. 1.When the keycap 101 of key 10 '
Relative to key bottom plate 11 up or when moving down, balancing pole 104 can be mobile towards direction D11 or direction D12, and towards direction
D13 or direction D14 overturning, the purpose being designed in this way is, makes key 10 ' in up or moving down relative to key bottom plate 11
When be able to maintain balance and will not tilt, while the intensity of keycap 101 can also be increased.
It is well known, however, that the shortcomings that key board unit 1, is, when the keycap 101 of any key 10 ' it is touched and relative to key
When bottom plate 11 moves down, the main rod body 1041 of balancing pole 104 can be produced because hitting key bottom plate 11 or film circuit board 12
The raw sound, but such sound is discordant noise for user.Therefore, the key board unit with buffer part is suggested
To improve above-mentioned defect.
Referring to Fig. 5, it is the balancing pole of the known key board unit with buffer part, key bottom plate and film circuit board
Structural schematic diagram.Key board unit 1A shown in Fig. 5 and Fig. 4 institute key board unit 1 the difference is that, key board unit 1A further includes in item
The elastic shock-suction body 13 of shape is that key bottom plate is arranged in a manner of the entire main rod body 1041 for corresponding to balancing pole 104
11 or film circuit board 12 on, therefore move down when the keycap 101 of any key 10 ' is touched relative to key bottom plate 11
When, the main rod body 1041 of balancing pole 104 can first strike elastic shock-suction body 13, to reduce main rod body 1041 and key bottom plate
11 or film circuit board 12 produced by the sound.
It is well known, however, that key board unit 1,1A also have the shortcomings that it is other.In detail, referring once again to Fig. 2 and Fig. 3, no matter
It is key board unit 1 or key board unit 1A, the skirt 1016 of keycap 101 all has height H, therefore, when any key 10 '
When keycap 101 is touched and moves down relative to key bottom plate 11, the skirt 1016 of keycap 101 also can be because hitting key bottom plate
11 or film circuit board 12 and generate the sound, but such sound is also discordant noise for user.Therefore, known
Key board unit 1,1A still there is improved space.
Summary of the invention
The main object of the present invention is providing a kind of key board unit with noise reduction function, is in key bottom plate or film
Setting corresponds to the buffer part of balancing pole on wiring board, and buffer part is work when keycap moves down relative to key bottom plate
For the fulcrum being in contact with the connecting-rod body of balancing pole, so avoid balancing pole main rod body and keycap skirt because hit by
Key bottom plate or film circuit board and generate the sound.
In a preferred embodiment, the present invention provides a kind of key board unit, including a key, a key bottom plate, a film
Wiring board and a buffer part.Key includes a keycap and a balancing pole, which includes a main rod body, a first connecting rod
Body and the one first interspersed body of rod, and the main rod body is articulated in the keycap；Wherein, a first end of the first connecting rod body and
One second end is connected to a first end of the main rod body and a first end of the first interspersed body of rod, and first connection
Between the first end of the body of rod and the first end of the main rod body formed turnover, and the second end of the first connecting rod body with
And turnover is formed between the first end of the first interspersed body of rod；Key bottom plate is attached to for the key, and including
One first connection structure upwardly extended, and first connection structure has one first perforation, and first perforation is flat for this
One second end of the first interspersed body of rod of weighing apparatus bar passes through；Film circuit board is set on the key bottom plate, and including phase
A thin film switch corresponding to the key；Buffer part is set on the key bottom plate or the film circuit board and is located at first company
The lower section of extension bar body, when the first connecting rod body it is touched according to the key and be moved downward to contact the buffer part when, this
It is vertical with one first between one connecting-rod body and a touching position of the buffer part and the first end of the first connecting rod body
Distance, and between the touching position and the second end of the first connecting rod body have one second vertical range, and this first hang down
Straight distance is greater than second vertical range.
The beneficial effects of the present invention are the keycap of key moves down relative to key bottom plate and can make the first of balancing pole
Connecting-rod body contacts the first buffer part, and is supported by the first buffer part, therefore the main rod body of balancing pole also will not be because hitting key
Bottom plate or film circuit board and generate the sound.
Detailed description of the invention
Fig. 1: for the surface structure schematic diagram of known key board unit.
Fig. 2: for key board unit shown in Fig. 1 part-structure in the perspective exploded view at a visual angle.
Fig. 3: for key board unit shown in Fig. 1 part-structure in the perspective exploded view at an another visual angle.
Fig. 4: for the illustrative view of the balancing pole of key board unit shown in Fig. 1.
Fig. 5: for the structural representation of the balancing pole, key bottom plate and film circuit board of the known key board unit with buffer part
Figure.
Fig. 6: for the surface structure schematic diagram of key board unit of the present invention.
Fig. 7: for key board unit shown in Fig. 6 part-structure in the perspective exploded view at a visual angle.
Fig. 8: for key board unit shown in Fig. 6 part-structure in the perspective exploded view at an another visual angle.
Fig. 9: for the perspective exploded view of the film circuit board of key board unit shown in Fig. 6.
Figure 10: for the illustrative view of the balancing pole of key board unit shown in Fig. 6.
Figure 11: for part-structure diagrammatic cross-section of the key board unit shown in Fig. 6 when the keycap of its key is not touched.
Figure 12: for part-structure diagrammatic cross-section of the key board unit shown in Fig. 6 after the keycap of its key is touched.
Appended drawing reference is as follows:
1 key board unit 1A key board unit
2 key board unit, 10 key
10 ' key, 11 key bottom plate
12 film circuit board, 13 elastic shock-suction body
20 key, 20 ' key
21 key bottom plate, 22 film circuit board
23 first buffer part, 24 second buffer part
The scissor connecting element of 101 keycap 102
103 elastomer, 104 balancing pole
111 first connection structure, 112 second connection structure
121 thin film switch, 201 keycap
202 connecting element, 203 elastomer
204 balancing pole, 211 first connection structure
212 second connection structure, 213 first bottom plate hook
214 second bottom plate hook, 221 thin film switch
222 topmost thin film, 223 lower film
The lid of 1016 keycap of layer film in 224
1,021 first frame of skirt of 1017 keycaps
1022 second frame, 1031 top
1041 main rod body, 1042 hook part
1111 first, which hook hole 1,121 second, hooks hole
The 2011 movable hooks of fixed hook 2012
The lid of 2013 balancing pole clamping part, 2016 keycap
2,021 first frame of skirt of 2017 keycaps
2022 second frame, 2031 top
2041 main rod body, 2,041 2042 first connecting rod body
2043 first interspersed 2,044 second connecting-rod bodies of the body of rod
The 2045 second interspersed bodies of rod 2,111 first are perforated
2121 second 2,221 first circuit patterns of perforation
2231 second circuit pattern, 2222 upper contact
2232 lower 2241 contact apertures of contact
The second end of 20,212 first frame of first end of 20211 first frames
The second end of 20,222 second frame of first end of 20221 second frames
The second end of the 20422 first connecting rod body of first end of 20421 first connecting rod bodies
The direction the D11 direction D12
The direction the D13 direction D14
The direction the D21 direction D22
The direction the D23 direction D24
H1 height the first vertical range of H21
The gap H22 the second vertical range H23
L1 length L2 length
The contact position P the first spacing distance of S1
S2 the second spacing distance W1 width
W2 width
Specific embodiment
Fig. 6~Fig. 8 is please referred to, Fig. 6 is the surface structure schematic diagram of key board unit of the present invention, and Fig. 7 is the dress of keyboard shown in Fig. 6
For the part-structure set in the perspective exploded view at a visual angle, Fig. 8 is the part-structure of key board unit shown in Fig. 6 in an another view
The perspective exploded view at angle.In order to more clearly illustrate, single key 20 ' and related elements knot are only drawn in Fig. 7 and Fig. 8
Structure.Key board unit 2 include multiple keys 20,20 ', key bottom plate 21 and be set between key 20,20 ' and key bottom plate 21
Film circuit board 22, multiple keys 20,20 ' can be classified as general key, number key and function key etc., respectively for using
Person makes computer execute corresponding function so that finger presses and so that key board unit 2 is generated corresponding push button signalling and gives computer
Can, such as general key, to symbols such as inputting English letters, number key is to input number, and function key is then various to provide
Shortcut function, such as F1~F12 etc..
Furthermore it please synchronize refering to Fig. 9, be the perspective exploded view of the film circuit board of key board unit shown in Fig. 6.It is thin
Film wiring board 22 includes topmost thin film 222 and lower film 223, and the lower surface of topmost thin film 222 has the first circuit pattern
2221, and there are the multiple upper contacts 2222 for corresponding respectively to multiple keys 20,20 ' on the first circuit pattern 2221, and lower layer
The upper surface of film 223 has second circuit pattern 2231, and has on second circuit pattern 2231 and correspond respectively on multiple
Multiple lower contacts 2232 of contact 2222；Wherein, between having between the lower contact 2232 of each upper contact 2222 corresponding thereto
Gauge is from and being collectively formed a thin film switch 221 with corresponding lower contact 2232.And in order to make each upper contact 2222 and its
There is spacing distance, film circuit board 22 further includes middle layer film 224, is set to upper layer between corresponding lower contact 2232
Between film 222 and lower film 223, and middle layer film 224 have correspond respectively to multiple upper contacts 2222 and it is multiple under connect
Multiple contact apertures 2241 of point 2232.Preferably, but not limited to this, topmost thin film 222, lower film 223 and middle layer
Any of film 224 can all be moulded by polycarbonate (PC) material, polyethylene terephthalate (PET) material, acryl
Made by glue (PMMA) material, polyurethane (Polyurethane, PU) material or polyimides (Polyimide, PI) material.
In addition, each key 20,20 ' includes keycap 201, connecting element 202 and elastomer 203, and keycap 201 includes
Lid 2016 and the skirt 2017 for being connected to 2016 periphery of lid and extending downwardly, and connecting element 202 is connected to keycap 201
And between key bottom plate 21, move up and down keycap 201 can relative to key bottom plate 21, in addition, elastomer 203 is then set
It is placed between keycap 201 and key bottom plate 21, and there is a top 2031.
In this preferred embodiment, the lower surface of the lid 2016 of keycap 201 also has the fixation hook being oppositely arranged
2011 and movable hook 2012, and connecting element 202 is scissor connecting element, and including the first frame 2021 and pivot joint
In the second frame 2022 of the first frame 2021, and the first frame 2021 and the second frame 2022 are respectively inner frame and outline border
Frame.In addition, key bottom plate 21 includes the first bottom plate hook 213 and the second bottom plate for upwardly extending and passing through film circuit board 22
Hook 214.Wherein, the first end 20211 Yu second end 20212 of the first frame 2021 are connected to the fixing card of keycap 201
Second bottom plate hook 214 of hook 2011 and key bottom plate 21, and the first end 20221 of the second frame 2022 and second end 20222
It is connected to the movable hook 2012 of the first bottom plate hook 213 and keycap 201 of key bottom plate 21, is set based on above-mentioned structure
Meter, the first frame 2021 and the second frame 2022 can swing opposite to each other and be converted to folding condition by closed state or by opening and closing
State is converted to closed state.But above are only an embodiment, connecting element 202 of the present invention, key are not limited with this
Connection relationship between bottom plate 21 and keycap 201.
When moving down when the keycap 201 of any key 20,20 ' is touched relative to key bottom plate 21, connecting element
The keycap 201 that 202 the first frame 2021 and the second frame 2022 can be changed to closed state, and be moved down by folding condition
Elastomer 203 can be squeezed, the top 2031 of elastomer 203 is supported and triggers corresponding upper contact 2222, and then is made
Its corresponding upper contact 2222 contacts corresponding lower contact 2232 via corresponding contact aperture 2241, thus enables phase
Corresponding thin film switch 221, which is reached, to electrically conduct, so that key board unit 2 generates corresponding push button signalling.And when key 20,
When 20 ' keycap 201 is no longer touched, keycap 201 can according to the elastic force of elastomer 203 and up relative to key bottom plate 21
Mobile, the first frame 2021 and the second frame 2022 can be changed to folding condition by closed state at this time, and keycap 201 can restore
It is in situ.
Referring once again to Fig. 6~Fig. 8, key 20 ' of certain length L2 greater than width W2 further includes two balancing poles 204,
And each balancing pole 204 includes main rod body 2041, first connecting rod body 2042, the second connecting-rod body 2044, the first interspersed body of rod
2043 and the second interspersed body of rod 2045；Wherein, the first end and second end of first connecting rod body 2042 are connected to master
The first end of the first end of the body of rod 2041 and the first interspersed body of rod 2043, and the first end of first connecting rod body 2042 and master
Form turnover between the first end of the body of rod 2041, and the second end of first connecting rod body 2042 and the first interspersed body of rod 2043
Turnover is formed between first end；In addition, the first end and second end of the second connecting-rod body 2044 are connected to main rod body
The first end of 2041 second end and the second interspersed body of rod 2045, and the first end and main rod body of the second connecting-rod body 2044
Form the first turnover between 2041 second end, and the second end of the second connecting-rod body 2044 and the second interspersed body of rod 2045
The second turnover is formed between first end.
In addition, the keycap 201 of key 20 ' of multiple length L2 greater than width W2 further includes with the master for balancing pole 204
The body of rod 2041 passes through and the balancing pole clamping part 2013 that is articulated with main rod body 2041, and key bottom plate 21 further includes upwardly extending
And the first connection structure 211 and the second connection structure 212 of film circuit board 22 are passed through, and the first connection structure 211 has
Two first perforation 2111, and the second connection structure 212 has two second for corresponding to two first perforation 2111 respectively
Perforation 2121, wherein the second end of the interspersed body of rod 2043 of the first of two balancing poles 204 is each passed through the first connection structure 211
Two first perforation 2111, and the second end of the second of the two balancing poles 204 interspersed body of rod 2045 is each passed through the second connection
Two second perforation 2121 of structure 212
Furthermore after each balancing pole 204 is connected between keycap 201 and key bottom plate 21, the main rod body of balancing pole 204
2041 compared with the first interspersed body of rod 2043 of balancing pole 204 and the second interspersed body of rod 2045 closer to the outer rim of keycap 201, change
Yan Zhi, the first end of first connecting rod body 2042 compared with first connecting rod body 2042 second end closer to keycap 201 outer rim,
And the first end of the second connecting-rod body 2044 compared with the second connecting-rod body 2044 second end closer to keycap 201 outer rim.
Refering to fig. 10 please be synchronize, is the illustrative view of the balancing pole of key board unit shown in Fig. 6.For clear signal,
Balancing pole 204 and related elements are only shown, keycap 201 is not all drawn with connecting element 202 in Figure 10.When the keycap of key 20 '
201 relative to key bottom plate 21 up or when moving down, and each balancing pole 204 can move repeatedly towards direction D21 or direction D22
It is dynamic, and overturn towards direction D23 or direction D24, and its main rod body 2041 also can be relative to multiple balancing pole clamping parts of keycap 201
2013 rotations, the purpose being designed in this way is, is able to maintain key 20 ' up or when moving down relative to key bottom plate 21 flat
Weighing apparatus and will not tilt, while can also structure increase keycap 201 intensity.
Referring once again to Fig. 7 and Figure 10, key board unit 2 of the present invention further includes the first buffer part 23 and the second buffer part
24, and the first buffer part 23 and the second buffer part 24 are all set on key bottom plate 21, but the first buffer part 23 is located at balance
The lower section of the first connecting rod body 2042 of bar 204, and the second buffer part 24 is located at the second connecting-rod body 2044 of balancing pole 204
Lower section；Wherein, when the keycap of key 20 ' 201 moves down relative to key bottom plate 21, the first connecting rod of balancing pole 204
Body 2042 and the second connecting-rod body 2044 understand contact respectively and the first buffer part 23 and the second buffer part 24, at this point, first is slow
Portion 23 and the second buffer part 24 are rushed respectively as first connecting rod body 2042 and the fulcrum of the second connecting-rod body 2044.
In detail, Figure 11 and Figure 12 are please referred to, Figure 11 is key board unit shown in Fig. 6 when the keycap of its key is not touched
Part-structure diagrammatic cross-section, Figure 12 is that part-structure of the key board unit shown in Fig. 6 after the keycap of its key is touched cuts open
Face schematic diagram, and for clear signal, the related elements such as balancing pole 204, the first buffer part 23 are only shown in Figure 11 and Figure 12.Figure
11 illustrate when the keycap 201 of key 20 ' is not touched, and the first connecting rod body 2042 of balancing pole 204 is not buffered with first
Portion 23 is in contact, and Figure 12 is illustrated after the keycap 201 of key 20 ' moves down relative to key bottom plate 21, balancing pole 204
First connecting rod body 2042 contact the first buffer part 23, and the touching position of first connecting rod body 2042 and the first buffer part 23
There is the first spacing distance S1 between P and the first end 20421 of first connecting rod body 2042, and the P that is in contact is connect with first
There is the second spacing distance S2, since the first buffer part 23 is only the first connection of contact between the second end 20422 of the body of rod 2042
A part of the body of rod 2042, therefore the first buffer part 23 can provide the purposes of fulcrum, at this point, being based on lever principle, first connecting rod
Have one first between the first end 20421 of the touching position P and first connecting rod body 2042 of body 2042 and the first buffer part 23
Vertical range H21, and between touching position P and the second end 20422 of first connecting rod body 2042 have one second it is vertical away from
From H22, and the first vertical range H21 is greater than the second vertical range H22.
Again due to aforementioned it was mentioned that the invention that the first end 20421 of first connecting rod body 2042 is compared with first connecting rod body 2042
Outer rim of the second end 20422 closer to keycap 201, therefore the skirt 2017 extended downwardly on keycap 201 by 2016 periphery of lid
There are more gap H23 between film circuit board 22 or between key bottom plate 21, and then can avoid the skirt of keycap 201
2017 generate the sound because hitting key bottom plate 21 or film circuit board 22.
In addition, in this preferred embodiment, the touching position P and first of first connecting rod body 2042 and the first buffer part 23
The first spacing distance S1 between the first end 20421 of connecting-rod body 2042 is greater than touching position P and first connecting rod body
The second spacing distance S2 between 2042 second end 20422, is advantageous in that, lever principle is based on, when first connecting rod body
2042 and first buffer part 23 second end 20422 of the touching position P closer to first connecting rod body 2042, the skirt of keycap 201
Just there is bigger gap H23 between side 2017 and film circuit board 22 or between key bottom plate 21, thus be more avoided that key
The skirt 2017 of cap 201 generates the sound because hitting key bottom plate 21 or film circuit board 22.
Similarly, when the keycap of key 20 ' 201 is not touched, the second connecting-rod body 2044 of balancing pole 204 is not with second
Buffer part 24 is in contact, and after the keycap of key 20 ' 201 moves down relative to key bottom plate 21, the second of balancing pole 204
Connecting-rod body 2044 contacts the second buffer part 24, and the touching position and second of the second connecting-rod body 2044 and the second buffer part 24
The first end and second end of connecting-rod body 2044 all have spacing distance, since the second buffer part 24 is only the second connecting rod of contact
A part of body 2044, therefore the second buffer part 24 can provide the purposes of fulcrum similarly based on lever principle and aforementioned has mentioned
To the second connecting-rod body 2044 first end compared with the second connecting-rod body 2044 second end closer to keycap 201 outer rim, because
On this keycap 201 by between 2016 periphery of the lid skirt 2017 extended downwardly and film circuit board 22 or with key bottom plate 21 it
Between there are more gaps, and then can avoid the skirt 2017 of keycap 201 because hitting key bottom plate 21 or due to film circuit board 22
Generate the sound.
In addition, in this preferred embodiment, the touching position and second of the second connecting-rod body 2044 and the second buffer part 24
Spacing distance between the first end of connecting-rod body 2044 be greater than the touching position and the second connecting-rod body 2044 second end it
Between spacing distance, be advantageous in that, be based on lever principle, when being in contact for the second connecting-rod body 2044 and the second buffer part 24
Place closer to the second connecting-rod body 2044 second end, between the skirt 2017 and film circuit board 22 of keycap 201 or and key
Just there is bigger gap between bottom plate 21, thus be more avoided that the skirt 2017 of keycap 201 because hitting key bottom plate 21 or thin
Film wiring board 22 and generate the sound.
For another aspect, balancing pole can be made since the keycap 201 of key 20 ' moves down relative to key bottom plate 21
204 first connecting rod body 2042 and the second connecting-rod body 2044 contact the first buffer part 23 and the second buffer part respectively
24, and supported respectively by the first buffer part 23 and the second buffer part 24, therefore the main rod body 2041 of balancing pole 204 also will not be because
It hits key bottom plate 21 or film circuit board 22 and generates the sound.
Preferably, but not limited to this, and the first buffer part 23 and the second buffer part 24 are by silicon rubber (silicone
Rubber) made by material or pressure-sensing glue (Pressure Sensitive Adhesive, PSA) material, and via a wire mark work
Skill, a tampon-printing process, a gluing process or a gum attachment process and be formed on key bottom plate 21.
Certainly, it above are only embodiment, those skilled in the art all can carry out any equalization according to practical application request
Design for change.For example, although above-mentioned first buffer part 23 and the second buffer part 24 are arranged on key bottom plate 21,
But it changes design the first buffer part 23 and the second buffer part 24 are set on film circuit board 22.
The foregoing is merely presently preferred embodiments of the present invention, the claim being not intended to limit the invention, thus it is all its
It is intended to be limited solely by claim of the invention without departing from the lower equivalent change or modification completed of spirit disclosed in this invention
It is interior.
Claims (12)
1. a kind of key board unit, comprising:
One key, including a keycap and a balancing pole, the balancing pole include a main rod body, a first connecting rod body and one the
The one interspersed body of rod, and the main rod body is articulated in the keycap；Wherein, a first end and a second end for the first connecting rod body point
Be not connected to a first end of the main rod body and a first end of the first interspersed body of rod, and the first connecting rod body this
Form turnover between this of one end and the main rod body first end, and the second end of the first connecting rod body and this first wear
Turnover is formed between the first end of inserted link body；
One key bottom plate is attached to for the key, and one first connection structure including upwardly extending, and this first
Connection structure has one first perforation, and first perforation passes through it for a second end of the first interspersed body of rod of the balancing pole
In；
One film circuit board is set on the key bottom plate, and the thin film switch including corresponding to the key；
One buffer part is set on the key bottom plate or the film circuit board and is located at the lower section of the first connecting rod body, when this
When first connecting rod body is touched according to the key and is moved downward to the contact buffer part, the first connecting rod body and the buffering
Between one touching position in portion and the first end of the first connecting rod body have one first vertical range, and the touching position with
There is one second vertical range, and to be greater than this second vertical for first vertical range between the second end of the first connecting rod body
Distance.
2. key board unit as described in claim 1, wherein when the first connecting rod body it is touched according to the key and to moving down
It moves to when contacting the buffer part, there is one first interval distance between the first end of the touching position and the first connecting rod body
From, and there is one second spacing distance between the touching position and the second end of the first connecting rod body.
3. key board unit as described in claim 1, wherein first spacing distance is greater than second spacing distance.
4. key board unit as described in claim 1, wherein the key further includes a connecting element, and the connecting element is connected to
Between the key bottom plate and the keycap, and move up and down the keycap relative to the key bottom plate.
5. key board unit as claimed in claim 4, wherein the connecting element includes:
One first end of one first frame, first frame is connected to the keycap, and a second end of first frame is connected to
The key bottom plate；And
One second frame, to be combined with first frame relative to first frame stroke, and the one of second frame
First end is connected to the key bottom plate, and a second end of second frame is connected to the keycap.
6. key board unit as claimed in claim 5, wherein the keycap further includes that the fixed hook being oppositely arranged and one are living
Dynamic hook, and the fixation hook is connect to the first end with first frame, and the activity hook to second frame
The second end of frame connects, and slide the second end of second frame can in the activity hook.
7. key board unit as claimed in claim 5, wherein the key bottom plate further includes the one first bottom plate hook upwardly extended
And one second bottom plate hook, and the first bottom plate hook is connected to the first end with second frame, and this second
Bottom plate hook is connected to the second end with first frame.
8. key board unit as described in claim 1, wherein the buffer part is via a screen printing process, a tampon-printing process, a dispensing
Technique or a gum attachment process and be formed on the key bottom plate or the film circuit board.
9. key board unit as described in claim 1, wherein the buffer part is as made by silicone rubber material or pressure-sensing glue material.
10. key board unit as described in claim 1, wherein the balancing pole further includes that one second connecting-rod body and one second wear
Inserted link body, a first end and a second end for second connecting-rod body are connected to a second end of the main rod body and are somebody's turn to do
One first end of the second interspersed body of rod, and shape between the first end of second connecting-rod body and the second end of the main rod body
At turnover, and turnover is formed between the second end of second connecting-rod body and the first end of the second interspersed body of rod；Its
In, which further includes one second connection structure upwardly extended, and second connection structure has one second perforation, and
Second perforation is passed through for a second end of the second interspersed body of rod of the balancing pole.
11. key board unit as described in claim 1, wherein the key further includes an elastomer, it is set to the keycap and is somebody's turn to do
Between film circuit board and there is a top, and when the keycap is touched, which is compressed and support the top
The thin film switch is pushed up, and when the keycap is no longer touched, which provides an elastic force and gives the keycap so that the keycap is extensive
Restore position.
12. key board unit as described in claim 1, wherein the film circuit board includes that a topmost thin film and a lower layer are thin
Film, and one first circuit pattern is provided on the topmost thin film, and a second circuit pattern is provided on the lower film；Its
In, the first circuit pattern and second circuit pattern are respectively provided with a upper contact and once contact, and the upper contact and should
There is a spacing distance between lower contact and the thin film switch is collectively formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810358695.9A CN110391106A (en) | 2018-04-20 | 2018-04-20 | Key board unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810358695.9A CN110391106A (en) | 2018-04-20 | 2018-04-20 | Key board unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110391106A true CN110391106A (en) | 2019-10-29 |
Family
ID=68283632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810358695.9A Pending CN110391106A (en) | 2018-04-20 | 2018-04-20 | Key board unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110391106A (en) |
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| CN115020145A (en) * | 2021-12-24 | 2022-09-06 | 荣耀终端有限公司 | Key assembly and keyboard |
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