CN106229193B - Illuminated keyboard and Keysheet module - Google Patents
Illuminated keyboard and Keysheet module Download PDFInfo
- Publication number
- CN106229193B CN106229193B CN201610679458.3A CN201610679458A CN106229193B CN 106229193 B CN106229193 B CN 106229193B CN 201610679458 A CN201610679458 A CN 201610679458A CN 106229193 B CN106229193 B CN 106229193B
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- circuit board
- keycaps
- illuminated keyboard
- ground
- 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
- H01H13/83—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
Landscapes
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The present invention discloses a kind of illuminated keyboard and Keysheet module, and illuminated keyboard includes a plurality of keycaps, bottom plate, a plurality of elevating mechanisms and circuit board.A plurality of keycaps are supported on the bottom plate via a plurality of elevating mechanisms, which is arranged between the bottom plate and a plurality of keycaps, the circuit board and the bottom plate electrical couplings.Thereby, when the circuit board bears high current, which can flow into the bottom plate by some, so protection setting in the electronic building brick on the circuit board from damage.The illuminated keyboard of the present invention and the circuit board of Keysheet module can also pass through chassis ground, therefore can bear larger electric current by more can effectively avoid the electronic building brick on circuit board from being damaged.
Description
Technical field
The present invention relates to a kind of illuminated keyboard and Keysheet module, more particularly to a kind of illuminated keyboard through its chassis ground and
Keysheet module.
Background technology
General keyboard usually only provides pressing input interface, and the switch of its button triggering is usually by the circuit that is turned on or off
Paired contact on plate and realize, circuit board ground connection usually also only by board contacts and the contacts of external connection device
And realize.With the development of backlight technology, illuminated keyboard also becomes increasingly popular at present.The backlight module of general illuminated keyboard is to keyboard
Lateral light source and backlight can be divided into by providing the mode of backlight, and wherein backlight is typically by the circuit below keycap
Plate, the framework for carrying multiple light-emitting diode components thereon are reached.In general, the ground connection of the circuit board of backlight module is usually also
Only realized by the contacts of board contacts and external connection device.When the circuit board of backlight module bears high current
(such as static discharge), this high current may quite cause to damage to light-emitting diode component.
The content of the invention
For the damage problem of the above-mentioned high current of improvement light-emitting diode component caused by possible, the present invention provides a kind of luminous
Keyboard.
Above-mentioned illuminated keyboard, including：
A plurality of keycaps；
Bottom plate, is arranged at below a plurality of keycaps；
A plurality of elevating mechanisms, are arranged in correspondence between the bottom plate and a plurality of keycaps, each elevating mechanism pair
Should one of a plurality of keycaps, each keycap can be moved up and down via corresponding elevating mechanism relative to the bottom plate；
Light emitting module, sets comprising circuit board and a plurality of luminescence components being electrically coupled on the circuit board, the circuit board
It is placed between the bottom plate and a plurality of keycaps, the circuit board and the bottom plate electrical couplings；And
Layer is extended laterally, is arranged between the circuit board and the bottom plate, this extends laterally layer and covers the plate upper surface
Part to be covered with surface, this extend laterally layer make the circuit board and this be covered with electrically completely cutting off between surface.
As optional technical solution, which includes main part and from the outwardly extending extension in the edge of the main part
Portion, the extension relative to the main part bend and around this extend laterally layer and with the bottom plate electrical couplings.
As optional technical solution, which has the first surface second surface opposite with the first surface, should
A plurality of luminescence components are disposed on the first surface, which is stacked and placed on this with the second surface and extends laterally on layer, should
Extension is less than or flushes in the first surface, which has the ground mat positioned at the extension, and ground mat contact should
Bottom plate.
As optional technical solution, illuminated keyboard further includes conductive tape, wherein the main part have first surface with
The opposite second surface of the first surface, a plurality of luminescence components are disposed on the first surface, the main part with this second
Surface is stacked and placed on this and extends laterally on layer, which is less than or flushes in the first surface, which has prolongs positioned at this
The ground mat of extending portion, the conductive tape are attached at the ground mat and the bottom plate at the same time.
As optional technical solution, which, which has, is located at the circuit board towards the ground connection on the surface of the bottom plate
Pad, the bottom plate have the protrusion towards the circuit board projection, which contacts the ground mat.
As optional technical solution, this, which extends laterally layer, has perforate, the apertures in alignment ground mat, which wears
The perforate is crossed to contact the ground mat.
As optional technical solution, illuminated keyboard further includes electric connection structure, and wherein the circuit board, which has, is located at the electricity
Road plate is towards the ground mat on the surface of the bottom plate, this, which extends laterally layer, has perforate, and the apertures in alignment ground mat, this is electrically connected
Binding structure is arranged in the perforate and connects the ground mat and the bottom plate.
As optional technical solution, illuminated keyboard further includes conductive tape, and wherein the circuit board, which has, is located at the circuit
Towards the ground mat on the surface of the keycap, which is attached at the ground mat and bends, extends laterally layer around this plate
And it is attached at the bottom plate.
As optional technical solution, it is film circuit board that this, which extends laterally layer, which includes a plurality of open
Close, each switch is corresponding under one of a plurality of keycaps.
The present invention also provides a kind of Keysheet module, which can be electrically coupled to outer contact, which includes outer
Power end and external ground terminal, the Keysheet module include：
A plurality of keycaps；
Bottom plate, is arranged at below a plurality of keycaps, which is securable on external shell；
A plurality of elevating mechanisms, are arranged in correspondence between the bottom plate and a plurality of keycaps, each elevating mechanism pair
Should one of a plurality of keycaps, each keycap can be moved up and down via corresponding elevating mechanism relative to the bottom plate；
And
Circuit board, is arranged between the bottom plate and a plurality of keycaps, which has board contacts and ground mat,
The board contacts include modular power source end and module ground end, which contacts the bottom plate and can be electrically coupled to this indirectly
External shell, the ground mat are contacted with the bottom plate with the first contact area；
Wherein, when the board contacts and the outer contact link, which is electrically coupled to the dispatch from foreign news agency source,
The external ground terminal is electrically coupled to the module ground end, which is contacted with the module ground end with the second contact area,
First contact area is more than second contact area；
Wherein, when the Keysheet module receives high current, the high current part is external with this through the module ground end
Ground terminal and be transmitted on the outer contact, which is transmitted to the external shell through the ground mat and the bottom plate
On.
As optional technical solution, which includes main part and extension, which has periphery, the main part
In the range of the upright projection of the base portion peripheral, which stretches out from the main part and exceeds the base portion peripheral, should
Ground mat is arranged on the extension, which bends downward relative to the main part and contact the bottom plate lower surface, makes this
Ground mat is electrically coupled on the bottom plate lower surface.
As optional technical solution, Keysheet module further includes a plurality of luminescence components, a plurality of luminescence component connections
A plurality of keycap lower surfaces are illuminated upwards on the circuit board, which emits beam.
As optional technical solution, Keysheet module, which further includes, extends laterally layer, be arranged at the circuit board and the bottom plate it
Between, this, which extends laterally layer and covers the part of the plate upper surface, is defined as being covered with surface, this, which extends laterally layer, makes the circuit
Plate and this be covered with electrically completely cutting off between surface.
As optional technical solution, it is film circuit board that this, which extends laterally layer, which includes a plurality of open
Close, each switch is corresponding under one of a plurality of keycaps.
Compared with the prior art, although general connector can be designed with ground terminal, illuminated keyboard according to the present invention
And the circuit board of Keysheet module can also pass through chassis ground, therefore larger electric current can be born by more can effectively avoid circuit board
On electronic building brick be damaged.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Brief description of the drawings
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；
The profile that Fig. 4 is X-X along illuminated keyboard 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 fourth 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 notebook computer is assembled to according to an embodiment of the Keysheet module of the present invention；
Figure 11 is the signal explosive view of Keysheet module in Figure 10；
Figure 12 is the functional block diagram of notebook computer in Figure 10.
Embodiment
Please refer to Fig.1 to Fig.4, Fig. 1 is the schematic diagram of the first embodiment of the illuminated keyboard of the present invention, and Fig. 2 is to be sent out in Fig. 1
The explosive view of light keyboard, Fig. 3 is the functional block diagram of illuminated keyboard in Fig. 1, the section that Fig. 4 is X-X along illuminated keyboard in Fig. 1
Figure.Illuminated keyboard 1 includes upper cover 10, lower cover 12, a plurality of keycaps 14, bottom plate 16, a plurality of elevating mechanisms 18, light emitting module
20th, layer 22 and control module 24 are extended laterally, upper cover 10 is connected with lower cover 12 to house a plurality of keycaps 14, bottom plate 16, be somebody's turn to do
A plurality of elevating mechanisms 18, light emitting module 20, extend laterally layer 22 and control module 24.Wherein, bottom plate 16 is arranged at the plural number
A lower section of keycap 14, a plurality of elevating mechanisms 18 are arranged in correspondence between bottom plate 16 and a plurality of keycaps 14, each
Elevating mechanism 18 corresponds to one of a plurality of keycaps 14, each keycap 14 can be opposite via corresponding elevating mechanism 18
Moved up and down in bottom plate 16, which exposes from the window 102 of upper cover 10, and light emitting module 20 includes circuit board 202
And a plurality of luminescence components 204 on circuit board 202 are electrically coupled to, circuit board 202 is arranged at bottom plate 16 and a plurality of keys
Between cap 14, circuit board 202 and 16 electrical couplings of bottom plate, extend laterally layer 22 and are arranged between circuit board 202 and bottom plate 16.Cause
This, keycap 14, elevating mechanism 18, circuit board 202, extend laterally 16 vertically stacked of layer 22 and bottom plate, extends laterally the knot of layer 22
Structure is horizontal-extending；Wherein, bottom plate 16 is electrically conductive (such as being formed by metal sheet), extends laterally layer 22 and covers 16 upper surface of bottom plate
162 part is defined as being covered with surface 162a, and extending laterally layer 22 makes circuit board 202 and be covered with electricity between the 162a of surface
Sexual isolation, but circuit board 202 still with 16 electrical couplings of bottom plate so that when circuit board 202 receives high current, this high current portion
Point can flow into bottom plate 16, so protection setting in the luminescence component 204 on circuit board 202 from damage.Wherein, in the present embodiment
In, 16 upper surface 162 of bottom plate is to extend laterally layer 22 to be covered, therefore upper surface 162 belongs to be covered with surface 162a.Separately
Outside, in this present embodiment, each luminescence component 204 is correspondingly arranged in one of them lower section of a plurality of keycaps 14, controls mould
Block 24 and 202 electrical couplings of circuit board, therefore pass through 204 selectivity of control luminescence component and shine, emit beam and illuminate keycap upwards
14 lower surface, to provide keycap 14 backlight.
Furthermore, it is understood that in this present embodiment, extend laterally layer 22 as film circuit board and switch 222 comprising a plurality of,
Each switch 222 is corresponded under one of a plurality of keycaps 14.The film circuit board can be that general keyboard uses
Film circuit board, it is three-decker (being shown in single structure part in figure, to simplify drawing), upper and lower structure sheaf phase
To surface on (be not illustrated in figure, to simplify drawing) formed with circuit, the circuit to connect a plurality of switches 222,
Middle structure sheaf is to the insulate circuit on upper and lower two layers and structure sheaf in forming perforate at inductive switch 222；But this hair
It is bright to be not limited.Therefore, circuit board 202 can be made and be covered with electrically completely cutting off between the 162a of surface by extending laterally layer 22.Work as key
When cap 14 is pressed down, corresponding switch 222 can be triggered (such as switching to contact condition by off-state).Extend laterally layer
22 have the board contacts 224 with 222 electrical couplings of a plurality of switches, and in this present embodiment, board contacts 224 are located at
The edge of layer 22 is extended laterally, extends laterally layer 22 via board contacts 224 and 24 electrical couplings of control module, such as be inserted into
In FPC (Flexible Printed Circuit) connector of control module 24.Thereby, control module 24 can be sensed and respectively opened
Close 222 state.
In addition, in this present embodiment, elevating mechanism 18 is scissor stent, includes two stents being mutually pivotally connected, elevator
Structure 18 and the connection structure 164 being arranged on the upper surface 162 of bottom 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 bottom plate 16 can be gold
Belong to plate stamping part implementation, both can all realize aforementioned coupling structure 142,164 easily.In addition, in this present embodiment, each
Elevating mechanism 18 configures an Elastic Circular and dashes forward 19, is arranged between corresponding keycap 14 and bottom plate 16 and is located at the corresponding switch
On 222.Elastic Circular dash forward 19 can play trigger switch 222 and spring back keycap 14 function.It is corresponding when keycap 14 is by button
Elastic Circular dash forward 19 can be extruded by keycap 14 and trigger this it is corresponding switch 222；When the external force for putting on keycap 14 disappears, it is squeezed
The Elastic Circular of pressure dashes forward and 19 can restore and keycap 14 is back to original position.In principle, any keycap 14 that can provide is relative to bottom plate
The mechanisms of 16 relative movements can be used as the elevating mechanism of the present invention, therefore the lifting that current common press-key structure on the market uses
Mechanism is applicable.
In addition, in this present embodiment, the circuit board 202 of light emitting module 20 has board contacts 2022 (with dotted line frame table
Show its scope in Fig. 2), a plurality of ground mats 2024 (be arranged at the lower surface of circuit board 202, therefore with dotted line shadow wire frame representation
Its scope in Fig. 2, and it is shown in Figure 3 with solid line segment form) and with 2024 electrical couplings of board contacts 2022 and ground mat
Control circuit, a plurality of luminescence components 204 i.e. be welded in the control circuit.Circuit board 202 can be by general illuminated keyboard
Circuit board for carrying, controlling luminescence component is formed, the control circuit can include control chip, connection luminescence component 204 and
Circuit, the earthed circuit (being generally formed in around circuit board 202) of control chip, to simplify drawing, which does not paint
It is shown in figure.In this present embodiment, board contacts 2022 be located at circuit board 202 edge and comprising modular power source end 2022a,
Module ground end 2022b and a plurality of module by signal end 2022c, light emitting module 20 is via the 2022a automatic control moldings of modular power source end
Block 24 receives electric power, receives control signal from control module 24 via module by signal end 2022c.Circuit board 202 can be but unlimited
In FPC, therefore circuit board 202 also can pass through and board contacts 2022 be inserted into the FPC connector of control module 24 and realize electricity
Road plate 202 and the electrical couplings of control module 24.In addition, in this present embodiment, ground mat 2024 is connected with the earthed circuit,
That is the earthed circuit extend outward it is larger can conducting region；Or circuit board 202 is except equipped with board contacts
Outside 2022 edge, other edges are both provided with ground mat 2024, and circuit board 202 is via ground mat 2024 and 16 electrical coupling of bottom plate
Close.In this present embodiment, module ground end 2022b and the contact area of control module 24 (such as FPC connector) are less than ground connection
The connection area of section of pad 2024 and bottom plate 16, that is to say, that the connection impedance between ground mat 2024 and bottom plate 16 is less than module
Connection impedance between ground terminal 2022b and control module 24.Thereby, when circuit board 202 receives high current, this high current phase
Circuit board 202 will be flowed out via ground mat 2024 to big part, the relatively small part of this high current will be via board contacts
2022 module ground end 2022b outflow circuit boards 202 so that luminescence component 204 can obtain being protected against the high current
Damage.In addition, illuminated keyboard 1 is connected through control module 24 and external device (ED) communication, such as control module 24 passes through cable
It is connected with external device (ED).The function and structure of control module 24 are able to be responsible for control electronic building brick start in general illuminated keyboard
Module is implemented, and is not repeated separately in this；To simplify drawing, control module 24 is shown in Fig. 2 with rectangular block.In addition, bottom plate 16
Also can independence or be integrated into the cable with external ground.
In addition, the electrical couplings of ground mat 2024 and bottom plate 16 can pass through various ways implementation.Hereafter connect with one of them
Illustrate exemplified by ground cushion 2024.In this present embodiment, circuit board 202 includes the edge 2026a of main part 2026 and main part 2026
Outwardly extending extension 2028.Bottom plate 16 has periphery 166, and main part 2026 is located at the vertical throwing of the periphery 166 of bottom plate 16
In the range of shadow, that is, under vertical angle of view, main part 2026 is without departing from bottom plate 16.2028 main body 2026 of extension is to extension
Stretch and beyond the periphery 166 of bottom plate 16, extension 2028 bend relative to main part 2026 and around extend laterally layer 22 and with
16 electrical couplings of bottom plate.Furthermore, it is understood that main part 2026 has first surface 2026b and opposite with first surface 2026b
Second surface 2026c, a plurality of luminescence components 204 are arranged on first surface 2026b, and main part 2026 is with second surface
2026c, which is stacked and placed on, to be extended laterally on layer 22, and extension 2028 is less than or flushes in first surface 2026b, and ground mat 2024 is located at
Extension 2028 and contact base plate 16.Wherein, 2028 main body 2026 of extension is bent downward, therefore the fixation of extension 2028
(i.e. autonomous agent 2026 starts the part extended) is substantially parallel with main part 2026 for end, and the free end of extension 2028 is then
Substantially below main part 2026, that is, extension 2028 is without departing from first surface 2026b, will not with circuit board 202
Other components of side produce constructive interference.Further, since ground mat 2024 is located at the lower surface of circuit board 202, therefore ground mat
2024 can directly contact base plate 16, that is, extension 2028 is bent downward and the following table of contact base plate 16 relative to main part 2026
Face 168, makes ground mat 2024 be electrically coupled on the lower surface 168 of bottom plate 16.But the present invention is not limited, for example, such as Fig. 5
Shown, in the second embodiment of the illuminated keyboard of the present invention, circuit board 202 is passed through positioned at the upper surface of circuit board 202
Ground mat 2025 and 16 electrical couplings of bottom plate.Due to ground mat 2025 can not direct contact base plate 16, so embodiment shines
Keyboard utilizes conductive tape 26, while is attached at ground mat 2025 and bottom plate 16, to realize the electrical of circuit board 202 and bottom plate 16
Coupling.
In previous embodiment, circuit board 202 has pliability so that ground mat 2024,2025 is electrical with bottom plate 16
Coupling can pass through bending circuit board 202 (or meaning extension 2028) and realize, but the present invention is not limited.As shown in fig. 6, in this
In the 3rd embodiment of the illuminated keyboard of invention, the circuit board 203 of its illuminated keyboard keeps smooth setting, and ground mat 2034 is set
In circuit board 203 towards on the surface 203a of the bottom plate 17 of the illuminated keyboard, the upper surface 172 of bottom plate 17 is extending transversely layer 22
The part of covering is defined as being covered with surface 172a, and the part that upper surface 172 is not extending transversely the covering of layer 22 is defined as not
Surface 172b is covered with, extending laterally layer 22 makes circuit board 203 and be covered with electrically completely cutting off between the 172a of surface.Bottom plate 17 has
There is protrusion 172c, uncovered upper surface 172b is i.e. on protrusion 172c so that protrusion 172c can be with uncovered
Upper surface 172b contacts ground mat 2034.In this embodiment, protrusion 172c is located at 17 edge of bottom plate, but the present invention is not with this
It is limited.Again as shown in fig. 7, in the fourth embodiment of the illuminated keyboard of the present invention, the protrusion of the bottom plate 17a of its illuminated keyboard
172c is non-to be located at bottom plate 17a edges.Wherein, the layer 23 that extends laterally of the illuminated keyboard has perforate 232, and the alignment of perforate 232 connects
Ground cushion 2034, the protrusion 172c of bottom plate 17a pass through perforate 232 to contact ground mat 2034.The configuration of this structure can equally be realized
The electrical couplings of circuit board 203 and bottom plate 17a.In addition, in above-described embodiment, circuit board 203 can be with bottom plate without bending
17th, 17a electrical couplings, therefore circuit board 203 need not be flexible, and general rigid printed circuit board (PCB) implementation can be used.
In previous embodiment, ground mat 2024,2025,2034 and bottom plate 16,17, the electrical couplings of 17a are through bending
Circuit board 202 is prominent real to contact ground mat 2034 (towards circuit board 202) upwards with contact base plate 16, or bottom plate 17,17a
It is existing, but the present invention is not limited.As shown in figure 8, in the present invention illuminated keyboard the 5th embodiment in, circuit board 203 and
Bottom plate 16 keeps smooth setting, and the ground mat 2034 on circuit board 203, which aligns, extends laterally the perforate 232 of layer 23, this shines
Keyboard utilizes electric connection structure 28, is arranged to connect ground mat 2034 and bottom plate 16 in perforate 232, and then realize circuit board
203 with the electrical couplings of bottom plate 16.Electric connection structure 28 can be the conducting resinl being filled in perforate 232, guide post or be formed at
Conductive structure (such as being formed in the lump with extending laterally the circuit on layer 23) in perforate 232.Again as shown in figure 9, in the present invention
Illuminated keyboard sixth embodiment in, the circuit board 203 and bottom plate 16 of its illuminated keyboard keep smooth setting, and its transverse direction
Extended layer 22 does not provide electrical couplings of the hole-opening between power circuit board 203 and bottom plate 16.The illuminated keyboard utilizes conductive tape
27 across extending laterally layer 22 with electrical couplings circuit board 203 and bottom plate 16.Wherein, circuit board 203, which has, is located at circuit board 203
Ground mat 2035 towards on the surface 203b of keycap 14, conductive tape 27 are attached at ground mat 2035 and bend, around transverse direction
Extended layer 22 and it is attached at bottom plate 16.This structure configures the electrical couplings that can equally realize circuit board 203 and bottom plate 16.
The illuminated keyboard of above-described embodiment be also able to Keysheet module form implement, that is, light emitting module 20 and with switch
222 layer 22 that extends laterally 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 notebook computer.Keysheet module 3 and the master for being arranged at notebook computer 4
Connector 422,424 electrical couplings on machine 42 so that the running of the energy control keyboard of host 42 module 3；In addition, host 42 is also controlled
The running of the screen 44 of notebook computer 4 processed.Illustrate to simplify, Keysheet module 3 is still using the structure of above-mentioned illuminated keyboard 1 as base
Plinth and illustrate, and using illuminated keyboard 1 element numbers.It is Keysheet module in Figure 10 referring to Figure 11 and Figure 12, Figure 11
Illustrate explosive view, Figure 12 is the functional block diagram of notebook computer in Figure 10.Keysheet module 3 includes a plurality of keycaps 14, bottom
Plate 16, a plurality of elevating mechanisms 18, light emitting module 20 and layer 22 is extended laterally, bottom plate 16 is arranged under a plurality of keycaps 14
Side, a plurality of elevating mechanisms 18 are arranged in correspondence between bottom plate 16 and a plurality of keycaps 14, each elevating mechanism 18
One of corresponding a plurality of keycaps 14, each keycap 14 can be relative on bottom plate 16 via corresponding elevating mechanism 18
Lower movement.Light emitting module 20 includes circuit board 202 and a plurality of luminescence components 204 being electrically coupled on circuit board 202, circuit
Plate 202 is arranged between bottom plate 16 and a plurality of keycaps 14.Circuit board 202 has board contacts 2022, a plurality of ground connection
Pad 2024 (lower surface for being arranged at circuit board 202) and the control electricity with 2024 electrical couplings of board contacts 2022 and ground mat
Road, a plurality of luminescence components 204 are welded in the control circuit.2024 contact base plate 16 of ground mat is padded with being grounded
2024 are contacted with the electrical couplings of bottom plate 16, ground mat 2024 with bottom plate 16 with the first contact area, and the section of this structure can join
Fig. 4 is read, the section of first contact area projects the solid line segment (being used to represent ground mat 2024) that is, in Fig. 4；It is real
In the operation of border, ground mat 2024 is most of to be used to contact base plate 16, therefore can be by the area of ground mat 2024 depending on first being connect with this
It is little to touch area discrepancy.Board contacts 2022 include modular power source end 2022a, module ground end 2022b and a plurality of modules
Signal end 2022c, light emitting module 20 receive electric power via modular power source end 2022a, receive control via module by signal end 2022c
Signal.Layer 22 is extended laterally as film circuit board and is arranged between circuit board 202 and bottom plate 16, layer 22 is extended laterally and includes again
Several switches 222 and the board contacts 224 with 222 electrical couplings of a plurality of switches, each correspondence of switch 222 is located at should
Under one of a plurality of keycaps 14.Each elevating mechanism 18 configures an Elastic Circular and dashes forward 19, is arranged at corresponding keycap
Between 14 and bottom plate 16 and on the corresponding switch 222.Elastic Circular dash forward 19 can play trigger switch 222 and rebound keycap
14 function.Therefore, Keysheet module 3 deducts the structure after upper cover 10, lower cover 12 and control module 24 equivalent to illuminated keyboard 1,
Therefore on other explanations of 3 component of Keysheet module, related description above and drawing are see, is not repeated separately.In addition, it is above-mentioned on
In illuminated keyboard 1 between ground mat 2024 and bottom plate 16 change case of electrical couplings explanation, do not conflict in architecture logic
Under situation, Keysheet module 3 is also applicable to, is not repeated separately.
It is fixed in addition, Keysheet module 3 can pass through bottom plate 16 on external shell, in this present embodiment, Keysheet module 3 is the bottom of with
Plate 16 is fixed in the fixed seat 426 at the top of host 42, so fixed seat 426 is that is, said external housing.Wherein,
Fixed seat 426 is electrically conductive, therefore bottom plate 16 is turned on fixed seat 426, and ground mat 2024 can electrical coupling indirectly because of contact base plate 16
Together in the external shell (i.e. fixed seat 426).Also, Keysheet module 3 can be electrically coupled to outer contact, in this present embodiment, keyboard
Module 3 distinguishes the connector 422,424 of electrical couplings host 42 via board contacts 2022,224, therefore connector 422,424
That is, the outer contact of Keysheet module 3, wherein outer contact (i.e. connector 422) includes dispatch from foreign news agency source 422a, external ground terminal
422b and external signal end 422c.Thereby, when board contacts 2022 and the outer contact (i.e. connector 422) link, module electricity
Source 2022a is electrically coupled to dispatch from foreign news agency source 422a, external ground terminal 422b and is electrically coupled to module ground end 2022b, external ground
End 422b is contacted with module ground end 2022b with the second contact area, which is more than second contact area.One
As for, general connector finite volume, the contact area that its each connecting pin can provide is limited.In this present embodiment, connector
422nd, 424 be to use FPC connector or similar connector, at least (is comparable to ground mat relative to first contact area
2024 area), the contact area for the connecting pin that connector 422,424 provides is extremely limited.Therefore, when Keysheet module 3 receives
During to a high current, which is transmitted to the outer contact (i.e. through module ground end 2022b and external ground terminal 422b
Connector 422) on, it is (i.e. fixed which is transmitted to the external shell through ground mat 2024 and bottom plate 16
Seat 426) on.Wherein, which is significantly greater than via module via bottom plate 16 on conduction to the Some principles of fixed seat 426
Ground terminal 2022b and conduct to the part of connector 422.
In conclusion although general connector can be designed with ground terminal, illuminated keyboard and keyboard according to the present invention
The circuit board of module can also pass through chassis ground, therefore can bear larger electric current by more can effectively avoid the electricity on circuit board
Sub-component is damaged.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Various corresponding changes and deformation, but these corresponding changes and deformation can be made according to the present invention by knowing those skilled in the art
The protection domain of appended claims of the invention should all be belonged to.
Claims (14)
- A kind of 1. illuminated keyboard, it is characterised in that including：A plurality of keycaps；Bottom plate, is arranged at below a plurality of keycaps；A plurality of elevating mechanisms, are arranged in correspondence between the bottom plate and a plurality of keycaps, each elevating mechanism corresponds to should One of a plurality of keycaps, each keycap can be moved up and down via corresponding elevating mechanism relative to the bottom plate；Light emitting module, is arranged at comprising circuit board and a plurality of luminescence components being electrically coupled on the circuit board, the circuit board Between the bottom plate and a plurality of keycaps, the circuit board and the bottom plate electrical couplings；AndLayer is extended laterally, is arranged between the circuit board and the bottom plate, which is extended laterally the portion of layer covering by this Be divided into and be covered with surface, this extend laterally layer make the circuit board and this be covered with electrically completely cutting off between surface.
- 2. illuminated keyboard as claimed in claim 1, it is characterised in that the circuit board includes main part and from the side of the main part The outwardly extending extension of edge, the extension bend relative to the main part and extend laterally layer and electrical with the bottom plate around this Coupling.
- 3. illuminated keyboard as claimed in claim 2, it is characterised in that the main part have first surface and with the first surface Opposite second surface, a plurality of luminescence components are disposed on the first surface, which is stacked and placed on the second surface This is extended laterally on layer, which is less than or flushes in the first surface, which has the ground connection positioned at the extension Pad, the ground mat contact the bottom plate.
- 4. illuminated keyboard as claimed in claim 2, it is characterised in that the illuminated keyboard also includes conductive tape, the wherein main body Portion has first surface and the second surface opposite with the first surface, which is arranged at the first surface On, which is stacked and placed on this with the second surface and extends laterally on layer, which is less than or flushes in the first surface, should Circuit board has the ground mat positioned at the extension, which is attached at the ground mat and the bottom plate at the same time.
- 5. illuminated keyboard as claimed in claim 1, it is characterised in that the circuit board, which has, is located at the circuit board towards the bottom plate Surface on ground mat, which has the protrusion towards the circuit board projection, which contacts the ground mat.
- 6. illuminated keyboard as claimed in claim 5, it is characterised in that this, which extends laterally layer, has perforate, which should Ground mat, the protrusion pass through the perforate to contact the ground mat.
- 7. illuminated keyboard as claimed in claim 1, it is characterised in that the illuminated keyboard also includes electric connection structure, the wherein electricity Road plate has positioned at the circuit board towards the ground mat on the surface of the bottom plate, this, which extends laterally layer, has perforate, the perforate pair The neat ground mat, the electric connection structure are arranged in the perforate and connect the ground mat and the bottom plate.
- 8. illuminated keyboard as claimed in claim 1, it is characterised in that the illuminated keyboard also includes conductive tape, the wherein circuit Plate have positioned at the circuit board towards the ground mat on the surface of the keycap, the conductive tape be attached at the ground mat and bend, Layer is extended laterally around this and is attached at the bottom plate.
- 9. illuminated keyboard as claimed in claim 1, it is characterised in that it is film circuit board that this, which extends laterally layer, the thin-film electro Road plate includes a plurality of switches, each switch is corresponding under one of a plurality of keycaps.
- 10. a kind of Keysheet module, it is characterised in that the Keysheet module can be electrically coupled to outer contact, which includes dispatch from foreign news agency Source and external ground terminal, the Keysheet module include：A plurality of keycaps；Bottom plate, is arranged at below a plurality of keycaps, which is fixed on external shell；A plurality of elevating mechanisms, are arranged in correspondence between the bottom plate and a plurality of keycaps, each elevating mechanism corresponds to should One of a plurality of keycaps, each keycap can be moved up and down via corresponding elevating mechanism relative to the bottom plate；With AndCircuit board, is arranged between the bottom plate and a plurality of keycaps, which has board contacts and ground mat, the electricity Road plate contact includes modular power source end and module ground end, which contacts the bottom plate and can be electrically coupled to indirectly outside this Housing, the ground mat are contacted with the bottom plate with the first contact area；Wherein, when the board contacts and the outer contact link, which is electrically coupled to the dispatch from foreign news agency source, this is outer Ground terminal is electrically coupled to the module ground end, which is contacted with the module ground end with the second contact area, this One contact area is more than second contact area；Wherein, when the Keysheet module receives high current, the high current part is through the module ground end and the external ground terminal And be transmitted on the outer contact, which is transmitted on the external shell through the ground mat and the bottom plate.
- 11. Keysheet module as claimed in claim 10, it is characterised in that the circuit board includes main part and extension, the bottom Plate has periphery, and in the range of the upright projection of the base portion peripheral, which stretches out the main body section from the main part And exceed the base portion peripheral, which is arranged on the extension, which bends downward and connect relative to the main part The bottom plate lower surface is touched, the ground mat is electrically coupled on the bottom plate lower surface.
- 12. Keysheet module as claimed in claim 10, it is characterised in that the Keysheet module also includes a plurality of luminescence components, should A plurality of luminescence components are connected on the circuit board, which emits beam illuminates under a plurality of keycaps upwards Surface.
- 13. Keysheet module as claimed in claim 10, it is characterised in that the Keysheet module also comprising layer is extended laterally, is arranged at Between the circuit board and the bottom plate, the part which is extended laterally layer covering by this is defined as being covered with surface, This extend laterally layer make the circuit board and this be covered with electrically completely cutting off between surface.
- 14. Keysheet module as claimed in claim 13, it is characterised in that it is film circuit board that this, which extends laterally layer, the film Circuit board includes a plurality of switches, each switch is corresponding under one of a plurality of keycaps.
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 CN106229193A (en) | 2016-12-14 |
| CN106229193B true CN106229193B (en) | 2018-04-17 |
Family
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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 (3)
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007241887A (en) * | 2006-03-10 | 2007-09-20 | Fujitsu Component Ltd | Keyboard |
| US20090211888A1 (en) * | 2007-10-05 | 2009-08-27 | Minebea Co., Ltd. | Multi-illuminating keyboard back light and method |
-
2016
- 2016-08-17 CN CN201610679458.3A patent/CN106229193B/en active Active
Patent Citations (3)
| 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 |
| 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 |
|---|---|
| CN106229193A (en) | 2016-12-14 |
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