CN102386008B - Keyboard assembly - Google Patents
Keyboard assembly Download PDFInfo
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- CN102386008B CN102386008B CN201010277517.7A CN201010277517A CN102386008B CN 102386008 B CN102386008 B CN 102386008B CN 201010277517 A CN201010277517 A CN 201010277517A CN 102386008 B CN102386008 B CN 102386008B
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- metal dome
- keyboard components
- stator
- circuit board
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- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention relates to a keyboard assembly, applied to a handheld electronic device. The keyboard assembly comprises a circuit board, multiple metal dome structures, a fixed plate, a metal net and a pressing supplementary plate. The circuit board is provided with multiple conducting contacts and multiple conducting circuits electrically connected with the conducting contacts; the metal dome structures are respectively arranged corresponding to the conducting contacts; the fixed plate is used for covering the metal dome structures; the metal net is arranged in the local region on the fixed plate and is used for preventing electromagnetic interference; and the pressing supplementary plate can receive a pressure produced by pressing by virtue of a user and transmits the pressure to the metal dome structures, so as to generate an output signal with the conducting contacts.
Description
Technical field
The invention relates to a kind of keyboard components, particularly about a kind of input keyboard assembly that is applied to portable electric device.
Background technology
Along with scientific and technological progress and user are for the increase in demand of convenience, more and more many portable electric devices come out, for example various intelligent mobile phones.Portable electric device need possess input unit conventionally, to meet the demand of user's input signal, the most common and the most easily obtain user accept input mode be configuration physical keyboard.
With reference to Figure 1A, be depicted as the existing portable electric device 1 with physical keyboard, comprise in appearance display 11 and a keyboard components 10, each button on press surface surface when user's operation keyboard assembly 10.Please further consult Figure 1B, be depicted as the decomposing schematic representation of existing keyboard components 10.Keyboard components 10 mainly comprises: a keying body 110, is pressed supplementary plate 120, flexible circuit board 130, a metallic plate 140 and a main circuit board 160, in addition be extended with a connection winding displacement 150 and be connected to main circuit board 160 with a connector 170, and from flexible circuit board 130.
When the arbitrary button 111 on user's pressing keys body 110, by pressing the outstanding structure 121 of dome corresponding on supplementary plate 120, can trigger the relative circuit on flexible circuit board 130, and by connecting winding displacement 150 and connector 170, transmit signals to the processor 161 on main circuit board 160, and the action of settling signal input.And wherein metallic plate 140 and system common ground its role is to prevent electromagnetic interference (electromagnetic interference, EMI).
But the assembly that above-mentioned existing portable electric device 1 comprises is more, therefore cause that overall volume is excessive, weight is heavier, packaging technology is loaded down with trivial details and the shortcoming such as manufacturing cost is higher.Increasingly compact for portable electric device, be convenient for carrying and the trend such as low price, real competitiveless.
In view of this, provide a kind of for hand-held mobile device and more popular novel keyboard components, this is this industry problem demanding prompt solution.
Summary of the invention
An object of the present invention is to provide a kind of keyboard components, by design and configuration again, can reduce the quantity of the assembly of keyboard components, and even the volume of keyboard components portable electric device can be obtained reduce, towards more frivolous future development, to increase the convenience of its use.
Another object of the present invention is to provide a kind of keyboard components, the quantity of assembly reduces can simplify assembly program simultaneously, and manufacturing cost is reduced, and increases the competitiveness of product.
Another object of the present invention is to provide a kind of keyboard components, by the auxiliary pressing tablet (plunger) of configuration, operating handle can improve user's pressing keys time, and replace existing metallic plate with wire netting, also can reduce costs, reducing thickness weight reduction.
For reaching above-mentioned purpose, the present invention discloses a kind of keyboard components, comprise a circuit board, multiple metal dome structure (metal dome structure), a stator, a wire netting and and press supplementary plate, this circuit board has a conductive layer, a surface that is formed at this circuit board is upper, multiple conducting wires that this conductive layer comprises multiple conductive junction points and is electrically connected with these conductive junction points respectively; Respectively corresponding these conductive junction points of these metal dome structures, are arranged on this circuit board; This stator covers these metal dome structures; This wire netting is arranged at the regional area on this stator; This is pressed supplementary plate and covers this wire netting and this stator, and there is the outstanding structure of multiple domes, correspond respectively to this metal dome structure, respectively the top of the outstanding structure of this dome forms a plunger body, when this plunger body is under pressure, this dome is given prominence to this stator of respective outer side edges, presses this metal dome structure.
Useful technique effect of the present invention is: compared to existing keyboard components, keyboard components of the present invention has been save flexible circuit board, has been connected the setting of the assemblies such as winding displacement, connector and metallic plate, and change the circuit of existing flexible circuit board, directly be integrated on circuit board, and with wire netting substituted metal plate.Thus, the volume of keyboard components of the present invention and weight will significantly reduce, and assembly cost and time also will effectively reduce, and can significantly improve competitive power of product.
Brief description of the drawings
For above-mentioned purpose, technical characterictic and advantage can be become apparent, below cooperation accompanying drawing is elaborated to preferred embodiment of the present invention, wherein:
Figure 1A is the schematic diagram of existing portable electric device;
Figure 1B is the exploded view of existing keyboard components;
Fig. 2 A is the exploded perspective view of keyboard components of the present invention; And
Fig. 2 B is the generalized section of keyboard components of the present invention.
Embodiment
Keyboard components of the present invention please also refer to Fig. 2 A and Fig. 2 B, and wherein, Fig. 2 A is the exploded perspective schematic diagram of keyboard components 20 of the present invention, and Fig. 2 B is the profile of keyboard components 20 of the present invention.Can consult in the lump the existing portable electric device that Figure 1A illustrates, keyboard components 20 of the present invention is preferably and is applied to handheld electronic device, below will coordinate accompanying drawing that the important document composition of keyboard components 20 of the present invention is described in detail in detail.Should be noted that, be clear exposure structure of the present invention, and illustrations is drawn in the mode of slightly exaggerating, non-limiting the present invention for explanation, and the scope that the application asks, the scope limiting with appended claim is as the criterion.
As shown in the figure, keyboard components 20 of the present invention mainly comprises a circuit board 28, multiple metal dome structure (metal dome structure) 26, a stator 25, a wire netting 24 and and presses supplementary plate 23.Wherein, circuit board 28 has a conductive layer, is formed on the surface of circuit board 28 multiple conducting wires 282 that this conductive layer comprises multiple conductive junction points 281 and is electrically connected with conductive junction point 281 respectively.And these metal dome structures 26 are arranged at respectively on corresponding conductive junction point 281, when this metal dome structure 26 is pressed and in electrical contact with 281 one-tenth of conductive junction points, can produce an output signal.
This stator 25 is preferably by insulating material to be made, and entirety is covered on these metal dome structures 26 and circuit board 28, and its major function is to attach and locate these metal dome structures 26.This wire netting 24 is arranged on the regional area of stator 25, and clear and definite, wire netting 24 is arranged at respect to the region outside these metal dome structures 26.On actual practice, wire netting 24 can be in advance to be made, and corresponding these metal dome structure 26 positions formation perforation, re-lays to stator 25; Better enforcement aspect of the present invention is with for example moulded section technology of special typography (compression molding), directly metal material is directly printed on the surface of this stator 25, similarly, in production process, also avoid the position of corresponding these metal dome structures 26.As aforementioned, the object that arranges of wire netting 24 is to prevent the electromagnetic interference producing in signal transduction process.With respect to the design of existing keyboard components 10, the present invention does not need headspace to configure this metallic plate 140, therefore can dwindle volume and the thickness of keyboard components 20, also can reduce production costs.
Press supplementary plate 23 and be covered on wire netting 24 and stator 25, in the present invention, press supplementary plate 23 and have the outstanding structure 231 of multiple domes, its distribution corresponds respectively to the position of these metal dome structures 26.The top end of the outstanding structure 231 of each dome forms a plunger body 232, and this plunger body 232 is with respect to the metal dome structure 26 of bottom, goes out structure 231 and upwards extends and justify rostellum by oneself.Press the outstanding structure 231 of dome of supplementary plate 23 in order to promote user's the feel of pressing, because the configuration design of wire netting 24 is to avoid these metal dome structures 26 and the outstanding structure 231 of dome, therefore in the time of user's application of force pressing keys, the outstanding structure 231 of dome will coordinate stator 25, directly by pressure going down to metal dome structure 26.
In a preferred embodiment, keyboard components 20 of the present invention also can comprise a supporting layer 27, be arranged between stator 25 and circuit board 28, and region outside these metal dome structures 26.In detail, supporting layer 27 can be a diaphragm structure, and be formed with the perforation of multiple corresponding metal dome structure 26 positions, this supporting layer 27 is around the peripheral region of this metal dome structure 26, with slow down stator 25 because of the local height that covering metal dome structure 26 is formed poor, if supporting layer 27, near metal dome structure 26, even can also be assisted the position of fixing metal dome structure 26.Preferably, this supporting layer 27 is made with insulating material.
In the present invention, this stator 25 is preferably a film (Mylar film) that draws advanced in years; And wire netting 24 is preferably a silver medal net.Above material is teaching preferred embodiments of the present invention, and affiliated field has knows the knowledgeable conventionally, should find other alternative material, can reach equally object of the present invention, therefore non-in order to limit the present invention.
According to the structure of aforementioned keyboard components 20, when it is applied to handheld electronic device, can also comprise a light guiding film 22 and a keying body 21.Wherein, have multiple buttons 211 in keying body 21, it corresponds respectively to the configuration of these round metal top flats 26 or conductive junction point 281.And light guiding film 22 is arranged at keying body 21 and press between supplementary plate 23 and in pressing on supplementary plate 23, by this configuration, plunger body 232 pulls top in the bottom surface of light guiding film 22.The purpose of design of light guiding film 22 is to be designed to can be luminous time when keyboard components 20, and light guiding film 22 will promote its translucent effect, increase the practicality of product.
In when operation, when the button 211 in keying body 21 is accepted from the pressing of user, by then the plunger body 232 of pressing on supplementary plate 23 is exerted pressure, and then give prominence to structure 231 by dome and press metal dome structure 26.When metal dome structure 26 is pressed and the conductive junction point 281 contact formation conductings corresponding with it, will produce an output signal, and be passed to a processor (scheming not shown) by these conducting wires 282.This portable electric device can, because of should output signal, be made corresponding action.
In sum, compared to existing keyboard components 10, keyboard components 20 of the present invention has been save flexible circuit board, has been connected the setting of the assemblies such as winding displacement, connector and metallic plate, and changes the circuit of existing flexible circuit board, directly be integrated on circuit board, and with wire netting substituted metal plate.Thus, the volume of keyboard components of the present invention and weight, will significantly reduce, and assembly cost and time also will effectively reduce, and can significantly improve competitive power of product.
The above embodiments are only used for exemplifying enforcement aspect of the present invention, and explain technical characterictic of the present invention, are not used for limiting protection category of the present invention.Any be familiar with this operator can unlabored change or the arrangement of isotropism all belong to the scope that the present invention advocates, the scope of the present invention should be as the criterion with claim.
Claims (9)
1. a keyboard components, is characterized in that, comprises:
One circuit board, has a conductive layer, and a surface that is formed at this circuit board is upper, many conducting wires that this conductive layer comprises multiple conductive junction points and is electrically connected with these conductive junction points respectively;
Multiple metal dome structures, respectively corresponding these conductive junction points, are arranged on this circuit board, and wherein this metal dome structure comprises a top area and a peripheral region;
One stator, is covered in this top area of these metal dome structures;
One supporting layer, be arranged between this stator and this circuit board, and around this peripheral region of these metal dome structures, and this supporting layer is formed with the multiple perforation corresponding to this how each metal dome locations of structures, and respectively this peripheral region of this metal dome structure is close proximity in respectively this perforation;
One wire netting, is arranged on the regional area of this stator;
One presses supplementary plate, cover this wire netting and this stator, this is pressed supplementary plate and has the outstanding structure of multiple domes, correspond respectively to this metal dome structure, respectively the top of the outstanding structure of this dome forms a plunger body, and this regional area of this stator is with respect to the region beyond these metal dome structures and the outstanding structure of dome; When this plunger body is under pressure, this dome is given prominence to this stator of respective outer side edges, presses this metal dome structure.
2. keyboard components according to claim 1, is characterized in that, this plunger body extends with respect to this metal dome structure from the outstanding structure of this dome.
3. keyboard components according to claim 1, is characterized in that, this wire netting is to be printed on this stator.
4. keyboard components according to claim 3, is characterized in that, this wire netting is a silver medal net.
5. keyboard components according to claim 1, is characterized in that, this supporting layer is to be made up of insulating material.
6. keyboard components according to claim 1, is characterized in that, also comprises a light guiding film, is arranged at this and presses on supplementary plate.
7. keyboard components according to claim 6, is characterized in that, pulls in this light guiding film in this plunger body top.
8. keyboard components according to claim 7, is characterized in that, also comprises a keying body, be arranged in this light guiding film, this keying body has multiple buttons, corresponds respectively to these metal dome structure configurations, pressed when these buttons, this plunger body is exerted pressure.
9. keyboard components according to claim 1, it is characterized in that, this circuit board also comprises a processor, is electrically connected with these conducting wires, when these metal dome structures are pressed and conducting, by generation one output signal and be passed to this processor by these conducting wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010277517.7A CN102386008B (en) | 2010-09-03 | 2010-09-03 | Keyboard assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010277517.7A CN102386008B (en) | 2010-09-03 | 2010-09-03 | Keyboard assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386008A CN102386008A (en) | 2012-03-21 |
| CN102386008B true CN102386008B (en) | 2014-08-13 |
Family
ID=45825322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010277517.7A Expired - Fee Related CN102386008B (en) | 2010-09-03 | 2010-09-03 | Keyboard assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102386008B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013018156B3 (en) * | 2013-12-05 | 2015-04-16 | Fm Marketing Gmbh | keyboard |
| CN108362425A (en) * | 2018-04-28 | 2018-08-03 | 无锡盛赛传感科技有限公司 | A kind of press device of tension sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5557079A (en) * | 1995-07-03 | 1996-09-17 | Motorola, Inc. | Electronic device with shielded keypad interface |
| CN1226072A (en) * | 1998-02-13 | 1999-08-18 | 松下电器产业株式会社 | Movable contact unit for panel switch and panel switch using the same |
| CN101632144A (en) * | 2007-04-18 | 2010-01-20 | 三箭株式会社 | The round metal top flat and push-button switch and the manufacture method thereof that possess push projection |
-
2010
- 2010-09-03 CN CN201010277517.7A patent/CN102386008B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5557079A (en) * | 1995-07-03 | 1996-09-17 | Motorola, Inc. | Electronic device with shielded keypad interface |
| CN1226072A (en) * | 1998-02-13 | 1999-08-18 | 松下电器产业株式会社 | Movable contact unit for panel switch and panel switch using the same |
| CN101632144A (en) * | 2007-04-18 | 2010-01-20 | 三箭株式会社 | The round metal top flat and push-button switch and the manufacture method thereof that possess push projection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102386008A (en) | 2012-03-21 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20190903 |
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| CF01 | Termination of patent right due to non-payment of annual fee |