CN106229193A - Illuminated keyboard and Keysheet module - Google Patents
Illuminated keyboard and Keysheet module Download PDFInfo
- Publication number
- CN106229193A CN106229193A CN201610679458.3A CN201610679458A CN106229193A CN 106229193 A CN106229193 A CN 106229193A CN 201610679458 A CN201610679458 A CN 201610679458A CN 106229193 A CN106229193 A CN 106229193A
- Authority
- CN
- China
- Prior art keywords
- base plate
- circuit board
- ground mat
- keycaps
- illuminated keyboard
- 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.)
- Granted
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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
- H01H13/83—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 characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
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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
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2207/00—Connections
Abstract
The open a kind of illuminated keyboard of the present invention and Keysheet module, illuminated keyboard comprises a plurality of keycap, base plate, a plurality of elevating mechanism and circuit board.These a plurality of keycaps are supported on this base plate via these a plurality of elevating mechanisms, and this circuit board is arranged between this base plate and this plurality of keycaps, this circuit board and this base plate electrical couplings.Thereby, when this circuit board bears big electric current, some can be flowed into this base plate by this big electric current, and then the electronic building brick that protection setting is on this circuit board avoids damage.The illuminated keyboard of the present invention and the circuit board of Keysheet module through chassis ground, therefore can also can bear bigger electric current and pass through, and the electronic building brick that more can be prevented effectively from circuit board is impaired.
Description
Technical field
The present invention relates to a kind of illuminated keyboard and Keysheet module, particularly relate to a kind of through its illuminated keyboard chassis ground and
Keysheet module.
Background technology
General keyboard the most only provides pressing input interface, and the switch that its button triggers is generally by the circuit that is turned on or off
Contact paired on plate and realize, the ground connection of circuit board is generally the most only by the contacts of board contacts Yu external connection device
And realize.Along with the development of backlight technology, current illuminated keyboard also becomes increasingly popular.The backlight module of general illuminated keyboard is to keyboard
The mode providing backlight can be divided into lateral light source and backlight, and wherein backlight is typically by the circuit being positioned at below keycap
Plate, the framework that it carries multiple light-emitting diode components is reached.In general, the ground connection of the circuit board of backlight module is the most also
Only realized with the contacts of external connection device by board contacts.When the circuit board of backlight module bears big electric current
(such as static discharge), light-emitting diode component quite may be caused damage by this big electric current.
Summary of the invention
For improving the damage problem of the light-emitting diode component that above-mentioned big electric current is likely to result in, the present invention provides a kind of luminous
Keyboard.
Above-mentioned illuminated keyboard, including:
A plurality of keycaps；
Base plate, is arranged at below these a plurality of keycaps；
A plurality of elevating mechanisms, are arranged in correspondence with between this base plate and this plurality of keycaps, each elevating mechanism pair
Should a plurality of keycaps one of them, each keycap can move up and down relative to this base plate via corresponding elevating mechanism；
Light emitting module, comprises circuit board and a plurality of luminescence components being electrically coupled on this circuit board, and this circuit board sets
It is placed between this base plate and this plurality of keycaps, this circuit board and this base plate electrical couplings；And
Horizontal expansion layer, is arranged between this circuit board and this base plate, and this horizontal expansion layer covers this plate upper surface
Part for being covered with surface, this horizontal expansion layer make this circuit board and this be covered with between surface electrically completely cutting off.
As optional technical scheme, this circuit board comprises main part and from the outward extending extension in the edge of this main part
Portion, this extension relative to this main part bending and walk around this horizontal expansion layer and with this base plate electrical couplings.
As optional technical scheme, this main part has the second surface that first surface is relative with this first surface, should
A plurality of luminescence components are arranged on this first surface, and this main part is stacked and placed on this horizontal expansion layer with this second surface, should
Extension is less than or flushes in this first surface, and this circuit board has the ground mat being positioned at this extension, and the contact of this ground mat should
Base plate.
As optional technical scheme, illuminated keyboard further includes conductive tape, wherein this main part have first surface with
The second surface that this first surface is relative, these a plurality of luminescence components are arranged on this first surface, this main part with this second
Surface is stacked and placed on this horizontal expansion layer, this extension less than or flush in this first surface, this circuit board has and is positioned at this and prolongs
The ground mat of extending portion, this conductive tape is attached at this ground mat and this base plate simultaneously.
As optional technical scheme, this circuit board has and is positioned at this circuit board towards the ground connection on the surface of this base plate
Pad, this base plate has the jut towards this circuit board projection, and this jut contacts this ground mat.
As optional technical scheme, this horizontal expansion layer has perforate, this ground mat of this apertures in alignment, and this jut is worn
Cross this perforate to contact this ground mat.
As optional technical scheme, illuminated keyboard further includes electric connection structure, and wherein this circuit board has and is positioned at this electricity
Road plate is towards the ground mat on the surface of this base plate, and this horizontal expansion layer has perforate, and this ground mat of this apertures in alignment, this is electrically connected
Access node structure is arranged in this perforate and connects this ground mat and this base plate.
As optional technical scheme, illuminated keyboard further includes conductive tape, and wherein this circuit board has and is positioned at this circuit
Plate is towards the ground mat on the surface of this keycap, and this conductive tape is attached at this ground mat and bends, walks around this horizontal expansion layer
And it is attached at this base plate.
As optional technical scheme, this horizontal expansion layer is film circuit board, and this film circuit board comprises a plurality of opening
Closing, each switch correspondence is positioned at these a plurality of keycaps under one of them.
The present invention also provides for a kind of Keysheet module, and this Keysheet module can be electrically coupled to outer contact, outside this outer contact comprises
Power end and external ground end, this Keysheet module comprises:
A plurality of keycaps；
Base plate, is arranged at below these a plurality of keycaps, and this base plate is securable on external shell；
A plurality of elevating mechanisms, are arranged in correspondence with between this base plate and this plurality of keycaps, each elevating mechanism pair
Should a plurality of keycaps one of them, each keycap can move up and down relative to this base plate via corresponding elevating mechanism；
And
Circuit board, is arranged between this base plate and this plurality of keycaps, and this circuit board has board contacts and ground mat,
This board contacts comprises modular power source end and module ground end, and this ground mat contacts this base plate and can indirectly be electrically coupled to this
External shell, this ground mat contacts with the first contact area with this base plate；
Wherein, when this board contacts links with this outer contact, this modular power source end is electrically coupled to this dispatch from foreign news agency source,
This external ground end is electrically coupled to this module ground end, and this external ground end contacts with the second contact area with this module ground end,
This first contact area is more than this second contact area；
Wherein, when this Keysheet module receives big electric current, this big current segment is external with this through this module ground end
Ground end and be transmitted on this outer contact, this big electric current remainder is transmitted to this external shell through this ground mat and this base plate
On.
As optional technical scheme, this circuit board comprises main part and extension, and this base plate has periphery, this main part
In the range of being positioned at the upright projection of this base portion peripheral, this extension stretches out from this main part and beyond this base portion peripheral, is somebody's turn to do
Ground mat is arranged on this extension, and this extension bends downwards relative to this main part and contacts this base plate lower surface, makes this
Ground mat is electrically coupled on this base plate lower surface.
As optional technical scheme, Keysheet module further includes a plurality of luminescence component, and these a plurality of luminescence components connect
On this circuit board, these a plurality of luminescence components emit beam and upwards illuminate this plurality of keycap lower surfaces.
As optional technical scheme, Keysheet module further includes horizontal expansion layer, be arranged at this circuit board and this base plate it
Between, the part that this horizontal expansion layer covers this plate upper surface is defined as being covered with surface, and this horizontal expansion layer makes this circuit
Plate and this be covered with between surface electrically completely cutting off.
As optional technical scheme, this horizontal expansion layer is film circuit board, and this film circuit board comprises a plurality of opening
Closing, each switch correspondence is positioned at these a plurality of keycaps under one of them.
Compared to prior art, although general adapter can design has earth terminal, but according to the illuminated keyboard of the present invention
And the circuit board of Keysheet module through chassis ground, therefore can also can bear bigger electric current and pass through, circuit board more can be prevented effectively from
On electronic building brick impaired.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first embodiment of the illuminated keyboard of the present invention；
Fig. 2 is the explosive view of illuminated keyboard in Fig. 1；
Fig. 3 is the functional block diagram of illuminated keyboard in Fig. 1；
Fig. 4 is the profile of illuminated keyboard X-X along the line in Fig. 1；
Fig. 5 is the profile of the second embodiment of the illuminated keyboard of the present invention；
Fig. 6 is the profile of the 3rd embodiment of the illuminated keyboard of the present invention；
Fig. 7 is the profile of the 4th embodiment of the illuminated keyboard of the present invention；
Fig. 8 is the profile of the 5th embodiment of the illuminated keyboard of the present invention；
Fig. 9 is the profile of the sixth embodiment of the illuminated keyboard of the present invention；
Figure 10 is the schematic diagram that an embodiment of the Keysheet module according to the present invention is assembled to mobile computer；
Figure 11 is the signal explosive view of Keysheet module in Figure 10；
Figure 12 is the functional block diagram of mobile computer in Figure 10.
Detailed description of the invention
Referring to the schematic diagram of the first embodiment of the illuminated keyboard that Fig. 1 to Fig. 4, Fig. 1 are the present invention, Fig. 2 is to send out in Fig. 1
The explosive view of light keyboard, Fig. 3 is the functional block diagram of illuminated keyboard in Fig. 1, and Fig. 4 is the section of illuminated keyboard X-X along the line in Fig. 1
Figure.Illuminated keyboard 1 comprises upper cover 10, lower cover 12, a plurality of keycap 14, base plate 16, a plurality of elevating mechanism 18, light emitting module
20, horizontal expansion layer 22 and control module 24, upper cover 10 is connected with lower cover 12 with these a plurality of keycaps 14 accommodating, base plate 16, is somebody's turn to do
A plurality of elevating mechanisms 18, light emitting module 20, horizontal expansion layer 22 and control module 24.Wherein, base plate 16 is arranged at this plural number
Below individual keycap 14, these a plurality of elevating mechanisms 18 are arranged in correspondence with between base plate 16 and this plurality of keycaps 14, each
Elevating mechanism 18 to should a plurality of keycaps 14 one of them, each keycap 14 can be relatively via corresponding elevating mechanism 18
Moving up and down in base plate 16, these a plurality of keycaps 14 expose from the window 102 of upper cover 10, and light emitting module 20 comprises circuit board 202
And a plurality of luminescence components 204 being electrically coupled on circuit board 202, circuit board 202 is arranged at base plate 16 and this plurality of keys
Between cap 14, circuit board 202 and base plate 16 electrical couplings, horizontal expansion layer 22 is arranged between circuit board 202 and base plate 16.Cause
This, keycap 14, elevating mechanism 18, circuit board 202, horizontal expansion layer 22 and base plate 16 vertically stacked, the knot of horizontal expansion layer 22
Structure is horizontal-extending；Wherein, base plate 16 can conduct electricity (such as being formed by metal sheet), and horizontal expansion layer 22 covers base plate 16 upper surface
The part of 162 is defined as being covered with surface 162a, and horizontal expansion layer 22 makes circuit board 202 and is covered with between the 162a of surface electricity
Sexual isolation, but circuit board 202 still with base plate 16 electrical couplings so that when circuit board 202 receives big electric current, this big electric current portion
Divide and can flow into base plate 16, and then the luminescence component 204 that protection setting is on circuit board 202 avoids damage.Wherein, in the present embodiment
In, base plate 16 upper surface 162 is horizontal expansion layer 22 and is covered, therefore upper surface 162 belongs to be covered with surface 162a.Separately
Outward, in the present embodiment, each luminescence component 204 is correspondingly arranged in these a plurality of keycaps 14 below one of them, controls mould
Block 24 and circuit board 202 electrical couplings, thus luminous through controlling luminescence component 204 selectivity, emit beam and upwards illuminate keycap
The lower surface of 14, to provide keycap 14 backlight.
Furthermore, it is understood that in the present embodiment, horizontal expansion layer 22 is for film circuit board and comprises a plurality of switch 222,
Each switchs 222 correspondences and is positioned at these a plurality of keycaps 14 under one of them.This film circuit board can be that general keyboard uses
Film circuit board, it is three-decker (being shown in figure with single structure part, to simplify drawing), upper and lower structure sheaf phase
To surface on be formed with circuit (not being illustrated in figure, to simplify drawing), this circuit in order to connect this plurality of switches 222,
Middle structure sheaf in order to the insulate circuit in upper and lower two-layer and structure sheaf in forming perforate at inductive switch 222；But this
Bright it is not limited.Therefore, horizontal expansion layer 22 can make circuit board 202 and be covered with between the 162a of surface electrically completely cutting off.Work as key
When cap 14 is pressed down, corresponding switch 222 can be triggered (such as being switched to contact condition by off-state).Horizontal expansion layer
22 have and the board contacts 224 of these a plurality of switch 222 electrical couplings, and in the present embodiment, board contacts 224 is positioned at
The edge of horizontal expansion layer 22, horizontal expansion layer 22 via board contacts 224 and control module 24 electrical couplings, such as, inserts
In FPC (the Flexible Printed Circuit) adapter of control module 24.Thereby, control module 24 can sense and respectively open
Close the state of 222.
It addition, in the present embodiment, elevating mechanism 18 is scissor support, comprise the support of two mutual pivot joints, elevator
Structure 18 and the attachment structure 164 on the upper surface 162 being arranged at base plate 16 and the connection knot being arranged on the lower surface of keycap 14
Structure 142 connects respectively, but the present invention is not limited.Wherein, keycap 14 can be a plastic ejection moulding part, and base plate 16 can be gold
Belonging to plate stamping part implementation, both all can realize aforementioned coupling structure 142,164 easily.It addition, in the present embodiment, each
Elevating mechanism 18 configures an Elastic Circular and dashes forward 19, is arranged between keycap 14 and the base plate 16 of correspondence and is positioned at this corresponding switch
On 222.Elastic Circular is dashed forward and 19 can be played triggering the switch 222 and function of resilience keycap 14.When keycap 14 is by button, corresponding
Elastic Circular is dashed forward and 19 can be extruded by keycap 14 and trigger the switch 222 of this correspondence；When the external force putting on keycap 14 disappears, squeezed
The Elastic Circular of pressure dash forward 19 can reinstatements and make keycap 14 be back in situ.In principle, any it is provided that keycap 14 is relative to base plate
The mechanism of 16 relative movements all can be as the elevating mechanism of the present invention, therefore the lifting that at present the most common press-key structure uses
Mechanism is the most applicable.
Additionally, in the present embodiment, the circuit board 202 of light emitting module 20 has board contacts 2022 (with dotted line frame table
Show that its scope is in Fig. 2), a plurality of ground mat 2024 (be arranged at the lower surface of circuit board 202, therefore with dotted line shadow wire frame representation
Its scope is in Fig. 2 and shown in Figure 3 with heavy line segment table) and with board contacts 2022 and ground mat 2024 electrical couplings
Control circuit, these a plurality of luminescence components 204 are i.e. welded in this control circuit.Circuit board 202 can be by general illuminated keyboard
For carry, control luminescence component circuit board formed, this control circuit can comprise control chip, connect luminescence component 204 and
The circuit of control chip, grounded circuit (being generally formed in circuit board 202 around), for simplifying drawing, this control circuit is not painted
It is shown in figure.In the present embodiment, board contacts 2022 be positioned at circuit board 202 edge and comprise modular power source end 2022a,
Module ground end 2022b and a plurality of module by signal end 2022c, light emitting module 20 is via modular power source end 2022a automatic control molding
Block 24 receives electric power, accepts control signal via module by signal end 2022c from control module 24.Circuit board 202 can be but not limit
In FPC, therefore circuit board 202 also can pass through and realizes electricity in the FPC connector that board contacts 2022 inserts control module 24
Road plate 202 and the electrical couplings of control module 24.Additionally, in the present embodiment, ground mat 2024 is connected with this grounded circuit, also
That is, this grounded circuit extend outward bigger can conducting region；Or circuit board 202 is except being provided with board contacts
Outside the edge of 2022, other edge is provided with ground mat 2024, and circuit board 202 is via ground mat 2024 and the electrical coupling of base plate 16
Close.In the present embodiment, module ground end 2022b is less than ground connection with the contact area of control module 24 (such as FPC connector)
Pad 2024 and the connection area of section of base plate 16, say, that the connection impedance between ground mat 2024 and base plate 16 is less than module
Connection impedance between earth terminal 2022b and control module 24.Thereby, when circuit board 202 receives big electric current, this big electric current phase
Via ground mat 2024, big part will be flowed out circuit board 202, and the relatively small part of this big electric current will be via board contacts
The module ground end 2022b of 2022 flows out circuit board 202 so that luminescence component 204 can obtain being protected against this big electric current
Damage.It addition, illuminated keyboard 1 is connected with external device (ED) communication through control module 24, such as control module 24 is through cable
It is connected with external device (ED).The function of control module 24 and structure are able in general illuminated keyboard be responsible for controlling electronic building brick start
Module is implemented, and the most separately repeats in this；For simplifying drawing, control module 24 is shown in Fig. 2 with rectangular block.Additionally, base plate 16
Also can independence or be integrated in this cable with external ground.
Implement additionally, the electrical couplings of ground mat 2024 and base plate 16 can pass through various ways.Hereafter connect with one of them
Explanation as a example by ground cushion 2024.In the present embodiment, circuit board 202 comprises the edge 2026a of main part 2026 and main part 2026
Outward extending extension 2028.Base plate 16 has periphery 166, and main part 2026 is positioned at the vertical throwing of the periphery 166 of base plate 16
In the range of shadow, that is under vertical angle of view, main part 2026 is without departing from base plate 16.Extension 2028 main body 2026 is to extension
Stretch and beyond the periphery 166 of base plate 16, extension 2028 relative to main part 2026 bend and walk around horizontal expansion layer 22 and with
Base plate 16 electrical couplings.Furthermore, it is understood that main part 2026 has first surface 2026b and relative with first surface 2026b
Second surface 2026c, these a plurality of luminescence components 204 are arranged on first surface 2026b, and main part 2026 is with second surface
2026c is stacked and placed on horizontal expansion layer 22, and extension 2028 is less than or flushes in first surface 2026b, and ground mat 2024 is positioned at
Extension 2028 also contacts base plate 16.Wherein, extension 2028 main body 2026 bends downwards, therefore extension 2028 is fixing
(i.e. autonomous agent 2026 starts the part extended) is substantially parallel with main part 2026 in end, and the free end of extension 2028 is then
Being substantially below main part 2026, that is extension 2028 is without departing from first surface 2026b, will not be positioned on circuit board 202
Other component of side produces constructive interference.Additionally, due to ground mat 2024 is positioned at the lower surface of circuit board 202, therefore ground mat
2024 can directly contact base plate 16, that is extension 2028 bends downwards relative to main part 2026 and contacts the following table of base plate 16
Face 168, makes ground mat 2024 be electrically coupled on the lower surface 168 of base plate 16.But the present invention is not limited, such as, such as Fig. 5
Shown in, in the second embodiment of the illuminated keyboard of the present invention, circuit board 202 is through the upper surface being positioned at circuit board 202
Ground mat 2025 and base plate 16 electrical couplings.Owing to ground mat 2025 cannot directly contact base plate 16, so the luminescence of embodiment
Keyboard utilizes conductive tape 26, is attached at ground mat 2025 and base plate 16 simultaneously, to realize the electrical of circuit board 202 and base plate 16
Coupling.
In previous embodiment, circuit board 202 has pliability so that ground mat 2024,2025 is electrical with base plate 16
Coupling can realize through bending circuit board 202 (or meaning extension 2028), but the present invention is not limited.As shown in Figure 6, Yu Ben
In 3rd embodiment of the illuminated keyboard of invention, the circuit board 203 of its illuminated keyboard keeps smooth setting, ground mat 2034 to arrange
In circuit board 203 towards on the surface 203a of the base plate 17 of this illuminated keyboard, the upper surface 172 of base plate 17 is extending transversely layer 22
The part covered is defined as being covered with surface 172a, and upper surface 172 is not extending transversely the part of layer 22 covering and is defined as not
Being covered with surface 172b, horizontal expansion layer 22 makes circuit board 203 and is covered with between the 172a of surface electrically completely cutting off.Base plate 17 has
Jut 172c, uncovered upper surface 172b is had i.e. to be positioned on jut 172c so that jut 172c can be with uncovered
Upper surface 172b contacts ground mat 2034.In this embodiment, jut 172c is positioned at base plate 17 edge, but the present invention is not with this
It is limited.Again as it is shown in fig. 7, in the 4th embodiment of the illuminated keyboard of the present invention, the jut of the base plate 17a of its illuminated keyboard
172c is non-is positioned at base plate 17a edge.Wherein, the horizontal expansion layer 23 of this illuminated keyboard has perforate 232, and perforate 232 alignment connects
Ground cushion 2034, the jut 172c of base plate 17a passes perforate 232 to contact ground mat 2034.The configuration of this structure can realize equally
The electrical couplings of circuit board 203 and base plate 17a.It addition, in above-described embodiment, circuit board 203 gets final product and base plate without bending
17,17a electrical couplings, therefore circuit board 203 is without having pliability, and the most rigid printed circuit board (PCB) implementation can be used.
In previous embodiment, ground mat 2024,2025,2034 and base plate 16,17, the electrical couplings of 17a is through bending
Circuit board 202 is to contact base plate 16, or base plate 17,17a are upwards prominent real with contact ground mat 2034 (towards circuit board 202)
Existing, but the present invention is not limited.As shown in Figure 8, in the 5th embodiment of the illuminated keyboard of the present invention, circuit board 203 and
Base plate 16 all keeps smooth setting, and the ground mat 2034 on circuit board 203 aligns the perforate 232 of horizontal expansion layer 23, this luminescence
Keyboard utilizes electric connection structure 28, is arranged in perforate 232 to connect ground mat 2034 and base plate 16, and then realizes circuit board
203 with the electrical couplings of base plate 16.Electric connection structure 28 can be conducting resinl, the guide pillar being filled in perforate 232 or be formed at
Conductive structure (such as being formed in the lump with the circuit on horizontal expansion layer 23) in perforate 232.Again as it is shown in figure 9, in the present invention
Illuminated keyboard sixth embodiment in, the circuit board 203 of its illuminated keyboard and base plate 16 all keep smooth setting, and it is horizontal
Extended layer 22 does not provide hole-opening with the electrical couplings between power circuit board 203 and base plate 16.This illuminated keyboard utilizes conductive tape
27 across horizontal expansion layer 22 with electrical couplings circuit board 203 and base plate 16.Wherein, circuit board 203 has and is positioned at circuit board 203
Towards the ground mat 2035 on the surface 203b of keycap 14, conductive tape 27 is attached at ground mat 2035 and bends, walks around laterally
Extended layer 22 and be attached at base plate 16.The configuration of this structure can realize the electrical couplings of circuit board 203 and base plate 16 equally.
The illuminated keyboard of above-described embodiment is also able to the form of Keysheet module and implements, that is light emitting module 20 and have switch
The horizontal expansion layer 22 of 222 is controlled by the control module outside Keysheet module.As shown in Figure 10, Figure 10 is the key according to the present invention
One embodiment of disk module is assembled to the schematic diagram of mobile computer.Keysheet module 3 and the master being arranged at mobile computer 4
Adapter 422,424 electrical couplings on machine 42 so that the running of main frame 42 energy control key disk module 3；Additionally, main frame 42 is also controlled
The running of the screen 44 of mobile computer 4 processed.For simplifying explanation, Keysheet module 3 is still with the structure of above-mentioned illuminated keyboard 1 as base
Plinth and illustrate, and use illuminated keyboard 1 element numbers.It is Keysheet module in Figure 10 referring to Figure 11 and Figure 12, Figure 11
Signal explosive view, Figure 12 is the functional block diagram of mobile computer in Figure 10.Keysheet module 3 comprises a plurality of keycap 14, the end
Plate 16, a plurality of elevating mechanism 18, light emitting module 20 and horizontal expansion layer 22, base plate 16 is arranged at these a plurality of keycaps 14 times
Side, these a plurality of elevating mechanisms 18 are arranged in correspondence with between base plate 16 and this plurality of keycaps 14, each elevating mechanism 18
To should a plurality of keycaps 14 one of them, each keycap 14 can be relative on base plate 16 via corresponding elevating mechanism 18
Lower movement.Light emitting module 20 comprises circuit board 202 and a plurality of luminescence components 204 being electrically coupled on circuit board 202, circuit
Plate 202 is arranged between base plate 16 and this plurality of keycaps 14.Circuit board 202 has board contacts 2022, a plurality of ground connection
Pad 2024 (being arranged at the lower surface of circuit board 202) and the control electricity with board contacts 2022 and ground mat 2024 electrical couplings
Road, these a plurality of luminescence components 204 are i.e. welded in this control circuit.Ground mat 2024 contacts base plate 16 to be grounded pad
2024 with the electrical couplings of base plate 16, ground mat 2024 contacts with the first contact area with base plate 16, and the section of this structure can be joined
Readding Fig. 4, the section projection of this first contact area is i.e. equivalent to the solid line segment (being used for representing ground mat 2024) in Fig. 4；Real
In the operation of border, ground mat 2024 major part is used to contact base plate 16, therefore can be by the area of ground mat 2024 depending on first connecing with this
Touch area discrepancy little.Board contacts 2022 comprises modular power source end 2022a, module ground end 2022b and a plurality of module
Signal end 2022c, light emitting module 20 receives electric power via modular power source end 2022a, accepts control via module by signal end 2022c
Signal.Horizontal expansion layer 22 is for film circuit board and is arranged between circuit board 202 and base plate 16, and horizontal expansion layer 22 comprises multiple
Several switches 222 and the board contacts 224 with these a plurality of switch 222 electrical couplings, each switchs 222 correspondences and is positioned at this
A plurality of keycaps 14 are under one of them.Each elevating mechanism 18 configures an Elastic Circular and dashes forward 19, is arranged at the keycap of correspondence
Between 14 with base plate 16 and be positioned on this corresponding switch 222.Elastic Circular is dashed forward and 19 can be played triggering switch 222 and resilience keycap
The function of 14.Therefore, Keysheet module 3 is equivalent to the structure after illuminated keyboard 1 deducts upper cover 10, lower cover 12 and control module 24,
Therefore about other explanation of Keysheet module 3 component, see related description and drawing above, the most separately repeat.It addition, above-mentioned about
In illuminated keyboard 1, the explanation of the change case of electrical couplings between ground mat 2024 and base plate 16, does not conflicts in architecture logic
Under situation, also it is applicable to Keysheet module 3, the most separately repeats.
Being fixed on external shell additionally, Keysheet module 3 can pass through base plate 16, in the present embodiment, Keysheet module 3 is the end of with
Plate 16 is fixed on the fixing seat 426 being positioned at main frame 42 top, so fixing seat 426 is i.e. equivalent to said external housing.Wherein,
Fixing seat 426 can conduct electricity, therefore base plate 16 turns on fixing seat 426, and ground mat 2024 can electrical coupling indirectly because contact base plate 16
Together in this external shell (i.e. fixing seat 426).Also, Keysheet module 3 can be electrically coupled to outer contact, in the present embodiment, keyboard
Module 3 is via the adapter 422,424 of board contacts 2022,224 electrical couplings main frame 42 respectively, therefore adapter 422,424
I.e. being equivalent to the outer contact of Keysheet module 3, outer contact (i.e. adapter 422) comprises dispatch from foreign news agency source 422a, external ground end
422b and external signal end 422c.Thereby, when board contacts 2022 links with this outer contact (i.e. adapter 422), module electricity
Source 2022a is electrically coupled to dispatch from foreign news agency source 422a, and external ground end 422b is electrically coupled to module ground end 2022b, external ground
End 422b contacts with the second contact area with module ground end 2022b, and this first contact area is more than this second contact area.One
For as, general adapter finite volume, it is limited that it respectively connects the contact area that end is provided that.In the present embodiment, adapter
422,424 is all to use FPC connector or similar adapter, at least (is comparable to ground mat relative to this first contact area
The area of 2024), the contact area connecting end that adapter 422,424 provides is extremely limited.Therefore, accept when Keysheet module 3
During to a big electric current, this big current segment is transmitted to this outer contact (i.e. through module ground end 2022b and external ground end 422b
Adapter 422) on, it is (the most fixing that this big electric current remainder is transmitted to this external shell through ground mat 2024 and base plate 16
Seat 426) on.Wherein, this big electric current conducts via base plate 16 and is significantly greater than via module to the Some principles of fixing seat 426
Earth terminal 2022b and the part conducted to adapter 422.
In sum, although general adapter can design has earth terminal, but according to the illuminated keyboard of the present invention and keyboard
The circuit board of module through chassis ground, therefore can also can bear bigger electric current and pass through, and more can be prevented effectively from the electricity on circuit board
Sub-component is impaired.
Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and essence thereof, ripe
Know those skilled in the art and can make various corresponding change and deformation according to the present invention, but these change and deformation accordingly
All should belong to the protection domain of appended claims of the invention.
Claims (14)
1. an illuminated keyboard, it is characterised in that including:
A plurality of keycaps；
Base plate, is arranged at below these a plurality of keycaps；
A plurality of elevating mechanisms, are arranged in correspondence with between this base plate and this plurality of keycaps, and each elevating mechanism is to should
One of them of a plurality of keycaps, each keycap can move up and down relative to this base plate via corresponding elevating mechanism；
Light emitting module, comprises circuit board and a plurality of luminescence components being electrically coupled on this circuit board, and this circuit board is arranged at
Between this base plate and this plurality of keycaps, this circuit board and this base plate electrical couplings；And
Horizontal expansion layer, is arranged between this circuit board and this base plate, and this horizontal expansion layer covers the part of this plate upper surface
For being covered with surface, this horizontal expansion layer make this circuit board and this be covered with between surface electrically completely cutting off.
2. illuminated keyboard as claimed in claim 1, it is characterised in that this circuit board comprises main part and from the limit of this main part
The outward extending extension of edge, this extension is relative to the bending of this main part and walks around this horizontal expansion layer electrical with this base plate
Coupling.
3. illuminated keyboard as claimed in claim 2, it is characterised in that this main part have first surface and with this first surface
Relative second surface, these a plurality of luminescence components are arranged on this first surface, and this main part is stacked and placed on this second surface
On this horizontal expansion layer, this extension is less than or flushes in this first surface, and this circuit board has the ground connection being positioned at this extension
Pad, this ground mat contacts this base plate.
4. illuminated keyboard as claimed in claim 2, it is characterised in that this illuminated keyboard also comprises conductive tape, wherein this main body
Portion has first surface and the second surface relative with this first surface, and these a plurality of luminescence components are arranged at this first surface
On, this main part is stacked and placed on this horizontal expansion layer with this second surface, and this extension is less than or flushes in this first surface, should
Circuit board has the ground mat being positioned at this extension, and this conductive tape is attached at this ground mat and this base plate simultaneously.
5. illuminated keyboard as claimed in claim 1, it is characterised in that this circuit board has and is positioned at this circuit board towards this base plate
Surface on ground mat, this base plate has the jut towards this circuit board projection, and this jut contacts this ground mat.
6. illuminated keyboard as claimed in claim 5, it is characterised in that this horizontal expansion layer has perforate, and this apertures in alignment should
Ground mat, this jut passes this perforate to contact this ground mat.
7. illuminated keyboard as claimed in claim 1, it is characterised in that this illuminated keyboard also comprises electric connection structure, wherein this electricity
Road plate has and is positioned at this circuit board towards the ground mat on the surface of this base plate, and this horizontal expansion layer has perforate, this perforate pair
This ground mat neat, this electric connection structure is arranged in this perforate and connects this ground mat and this base plate.
8. illuminated keyboard as claimed in claim 1, it is characterised in that this illuminated keyboard also comprises conductive tape, wherein this circuit
Plate has and is positioned at this circuit board towards the ground mat on the surface of this keycap, this conductive tape be attached at this ground mat and bend,
Walk around this horizontal expansion layer and be attached at this base plate.
9. illuminated keyboard as claimed in claim 1, it is characterised in that this horizontal expansion layer is film circuit board, this thin-film electro
Road plate comprises a plurality of switch, and each switch correspondence is positioned at these a plurality of keycaps under one of them.
10. a Keysheet module, it is characterised in that this Keysheet module can be electrically coupled to outer contact, this outer contact comprises dispatch from foreign news agency
Source and external ground end, this Keysheet module comprises:
A plurality of keycaps；
Base plate, is arranged at below these a plurality of keycaps, and this base plate is fixed on external shell；
A plurality of elevating mechanisms, are arranged in correspondence with between this base plate and this plurality of keycaps, and each elevating mechanism is to should
One of them of a plurality of keycaps, each keycap can move up and down relative to this base plate via corresponding elevating mechanism；With
And
Circuit board, is arranged between this base plate and this plurality of keycaps, and this circuit board has board contacts and ground mat, this electricity
Road plate contact comprises modular power source end and module ground end, and this ground mat contacts this base plate and can indirectly be electrically coupled to outside this
Housing, this ground mat contacts with the first contact area with this base plate；
Wherein, when this board contacts links with this outer contact, this modular power source end is electrically coupled to this dispatch from foreign news agency source, and this is outer
Earth terminal is electrically coupled to this module ground end, and this external ground end contacts with the second contact area with this module ground end, and this is years old
One contact area is more than this second contact area；
Wherein, when this Keysheet module receives big electric current, this big current segment is through this module ground end and this external ground end
And be transmitted on this outer contact, this big electric current remainder is transmitted on this external shell through this ground mat and this base plate.
11. Keysheet modules as claimed in claim 10, it is characterised in that this circuit board comprises main part and extension, this end
Plate has periphery, and this main body section is in the range of the upright projection of this base portion peripheral, and this extension stretches out from this main part
And beyond this base portion peripheral, this ground mat is arranged on this extension, and this extension bends downwards relative to this main part and connects
Touch this base plate lower surface, make this ground mat be electrically coupled on this base plate lower surface.
12. Keysheet modules as claimed in claim 10, it is characterised in that this Keysheet module also comprises a plurality of luminescence component, should
A plurality of luminescence components are connected on this circuit board, and these a plurality of luminescence components emit beam and upwards illuminate under these a plurality of keycaps
Surface.
13. Keysheet modules as claimed in claim 10, it is characterised in that this Keysheet module also comprises horizontal expansion layer, is arranged at
Between this circuit board and this base plate, the part that this horizontal expansion layer covers this plate upper surface is defined as being covered with surface, should
Horizontal expansion layer make this circuit board and this be covered with between surface electrically completely cutting off.
14. Keysheet modules as claimed in claim 13, it is characterised in that this horizontal expansion layer is film circuit board, this thin film
Circuit board comprises a plurality of switch, and each switch correspondence is positioned at these a plurality of keycaps under one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610679458.3A CN106229193B (en) | 2016-08-17 | 2016-08-17 | Illuminated keyboard and Keysheet module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610679458.3A CN106229193B (en) | 2016-08-17 | 2016-08-17 | Illuminated keyboard and Keysheet module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106229193A true CN106229193A (en) | 2016-12-14 |
| CN106229193B CN106229193B (en) | 2018-04-17 |
Family
ID=57553848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610679458.3A Active CN106229193B (en) | 2016-08-17 | 2016-08-17 | Illuminated keyboard and Keysheet module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106229193B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026039A (en) * | 2006-02-21 | 2007-08-29 | 富士康(昆山)电脑接插件有限公司 | Elastic slice and switch device with same |
| US20070209920A1 (en) * | 2006-03-10 | 2007-09-13 | Fujitsu Component Limited | Keyboard and membrane switch for keyboard |
| US20090211888A1 (en) * | 2007-10-05 | 2009-08-27 | Minebea Co., Ltd. | Multi-illuminating keyboard back light and method |
| CN102737893A (en) * | 2011-04-08 | 2012-10-17 | 致伸科技股份有限公司 | Luminescent keyboard |
| CN103150027A (en) * | 2013-02-05 | 2013-06-12 | 苏州达方电子有限公司 | Backlight structure and luminous keyboard |
-
2016
- 2016-08-17 CN CN201610679458.3A patent/CN106229193B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026039A (en) * | 2006-02-21 | 2007-08-29 | 富士康(昆山)电脑接插件有限公司 | Elastic slice and switch device with same |
| US20070209920A1 (en) * | 2006-03-10 | 2007-09-13 | Fujitsu Component Limited | Keyboard and membrane switch for keyboard |
| US20090211888A1 (en) * | 2007-10-05 | 2009-08-27 | Minebea Co., Ltd. | Multi-illuminating keyboard back light and method |
| CN102737893A (en) * | 2011-04-08 | 2012-10-17 | 致伸科技股份有限公司 | Luminescent keyboard |
| CN103150027A (en) * | 2013-02-05 | 2013-06-12 | 苏州达方电子有限公司 | Backlight structure and luminous keyboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106229193B (en) | 2018-04-17 |
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