CN104836562B - A kind of key, a kind of terminal device and the method for determining key stroke - Google Patents
A kind of key, a kind of terminal device and the method for determining key stroke Download PDFInfo
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- CN104836562B CN104836562B CN201510205661.2A CN201510205661A CN104836562B CN 104836562 B CN104836562 B CN 104836562B CN 201510205661 A CN201510205661 A CN 201510205661A CN 104836562 B CN104836562 B CN 104836562B
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Abstract
The invention discloses a kind of key, a kind of terminal device and the methods for determining key stroke, are related to technical field of key, and the assembling to be conducive to key produces.Key includes: keycap, elastic connection unit, pedestal, capacitance signal processing unit；The keycap is connect by the elastic connection unit with the pedestal；The elastic connection unit is connect with the capacitance signal processing unit, and the capacitance signal processing unit is arranged on the pedestal；When key is pressed, the capacitance variations of the elastic connection unit；The capacitance signal processing unit determines the stroke of the key according to the variation of the capacitor of the elastic connection unit sensed.Key assembling of the invention is more convenient, is conducive to its assembling production.
Description
Technical field
The present invention relates to technical field of key, in particular to a kind of key, a kind of terminal device and key stroke is determined
Method.
Background technique
Currently, analogue-key majority adds the modes such as carbon film, Hall to realize by potentiometer and silicagel pad.Wherein, pass through electricity
The press-key structure design that position device and silicagel pad add carbon film mode to realize is more complex, and error is larger, and real by Hall mode
Existing analogue-key is more demanding to structure precision.Therefore, it is unfavorable for assembling using key implementation in the prior art
Production.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of key, a kind of terminal device and determining key stroke
Method, to be conducive to key assembling produce.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
On the one hand, the present invention provides a kind of keys, comprising: keycap, elastic connection unit, pedestal, capacitance signal processing
Unit；
The keycap is connect by the elastic connection unit with the pedestal；
The elastic connection unit is connect with the capacitance signal processing unit, and the capacitance signal processing unit setting exists
On the pedestal；
When key is pressed, the capacitance variations of the elastic connection unit；The capacitance signal processing unit is according to sense
The variation of the capacitor for the elastic connection unit that should be arrived determines the stroke of the key.
Wherein, the capacitance signal processing unit includes: capacitive sensing unit, signal processing unit；
The capacitive sensing unit, the signal processing unit be arranged on the pedestal, the elastic connection unit and
The signal processing unit is connect with the capacitive sensing unit respectively；
When key is pressed, the capacitive sensing unit is according to the change of the capacitor of the elastic connection unit sensed
Metaplasia is sent to the signal processing unit at signal value output, and by the signal value output；
The signal processing unit determines the stroke of the key according to the signal value output.
Wherein, the signal processing unit includes: microprocessor and memory；Wherein, the microprocessor is receiving
After the signal value output, the stroke of key is determined using the memory；
Alternatively, the signal processing unit includes microprocessor, the microprocessor is receiving the signal value output
The stroke of key is directly determined afterwards.
Wherein, the downside or inside of the keycap, the elastic connection unit packet is arranged in the elastic connection unit
Include spring.
Wherein, separating element is provided between the keycap and the elastic connection unit.
Wherein, the separating element includes plastic parts.
Wherein, the capacitive sensing unit includes capacitive sensing chip.
Compared with prior art, the beneficial effects of the present invention are:
In the present invention, it only just can determine that out the stroke of key by the variation of elastic connection unit, thus, it is of the invention
Press-key structure design is simple, is easily assembled to produce.
Second aspect, the embodiment of the invention provides a kind of terminal devices, including key above-mentioned.
Compared with prior art, the beneficial effects of the present invention are: since the key that the terminal device includes is easy to device, because
And the terminal device is made to be also easy to assembling production.
The third aspect, the embodiment of the invention provides a kind of methods of determining aforementioned keys stroke, comprising:
When key is pressed, the capacitance signal processing unit of key incudes the capacitor of the elastic connection unit of the key
Variation；
The capacitance signal processing unit is according to the variation of the capacitor of the elastic connection unit sensed determination
The stroke of key.
Wherein, the capacitance signal processing unit is the separation by being arranged between keycap and the elastic connection unit
Unit senses the variation of the elastic connection cell capacitance；
The capacitance signal processing unit generates signal according to the variation of the capacitor of the elastic connection unit sensed
Output valve, and determine according to the signal value output stroke of the key；Or the capacitance signal processing unit includes: electricity
Hold sensing unit, signal processing unit；The capacitance signal processing unit is according to the electricity of the elastic connection unit sensed
The variation of appearance determines that the stroke of the key includes: the capacitive sensing unit according to the elastic connection unit sensed
The variation of capacitor generates signal value output, and the signal value output is sent to the signal processing unit；At the signal
Reason unit determines the stroke of the key according to the signal value output.
Compared with prior art, the beneficial effects of the present invention are:
Since the structure of key is simple, determine that key stroke is more convenient using the method for the embodiment of the present invention, it is real
It is strong with property.
Detailed description of the invention
Fig. 1 is the first schematic diagram of key of the embodiment of the present invention；
Fig. 2 is the second schematic diagram of key of the embodiment of the present invention；
Fig. 3 is the third schematic diagram of key of the embodiment of the present invention；
Fig. 4 is the flow chart of the method for the above-mentioned key stroke of the determination of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
As shown in Figure 1, the key of the embodiment of the present invention includes: keycap 11, elastic connection unit 12, pedestal 13, capacitor letter
Number processing unit 14.
Wherein, the keycap 11 is connect by the elastic connection unit 12 with the pedestal 13；The elastic connection list
Member 12 is connect with the capacitance signal processing unit 14, on pedestal 13 described in the capacitance signal processing unit 14.
When key is pressed, the capacitance variations of the elastic connection unit；The capacitance signal processing unit is according to sense
The variation of the capacitor for the elastic connection unit that should be arrived determines the stroke of the key.
Wherein, the elastic connection unit can be selected in a particular application spring etc. be pressed rear capacitor can be changed
Elastic component.As shown in Figure 1, the spring may be provided at the downside of the keycap by taking spring as an example, i.e., the keycap is logical at this time
It crosses and the spring of keycap lower part surrounding is set is connect with pedestal.Alternatively, in order to enable the stroke of the key determined is more quasi-
Really, as shown in Fig. 2, the spring can also be provided at the inside of the keycap.
In order to reduce the influence that finger changes elastic connection cell capacitance value, increase the distance between finger and spring,
As shown in figure 3, being also provided with separating element 16 between the keycap and the spring, such as setting plastic parts.The electricity
Hold sensing unit can be used capacitive sensing chip in a particular application.
In embodiments of the present invention, the capacitance signal processing unit can be to be integrated with capacitive sensing unit, at signal
Manage the chip of unit.At this point, change of the capacitance signal processing unit according to the capacitor of the elastic connection unit sensed
Metaplasia determines according to the signal value output stroke of the key at signal value output.
Alternatively, in embodiments of the present invention, the capacitance signal processing unit can include: capacitive sensing unit, at signal
Manage unit.The capacitive sensing unit, the signal processing unit are arranged on the pedestal, the elastic connection unit and institute
Signal processing unit is stated to connect with the capacitive sensing unit respectively.Specifically, when key is pressed, the capacitive sensing list
Member generates signal value output according to the variation of the capacitor of the elastic connection unit sensed, and the signal value output is sent out
The signal processing unit is given, the signal processing unit determines the stroke of the key according to the signal value output.
In a particular application, the signal processing unit 15 includes microprocessor and memory.When a user presses a key,
Spring is compressed, and the distance between each ring of spring shortens, and capacitance increases.Hold on capacitive sensing unit detecting real-time to spring
The variation of value, and the signal value output that its capacitance is converted to corresponding number is transferred to microprocessor.Microprocessor is receiving
To after the signal value output, the stroke of key is determined according to the program stored in the memory.Certainly, in order to further
Save the cost, the signal processing unit can also only include microprocessor, and the microprocessor itself is provided with storage unit, use
To store program.At this point, the microprocessor after receiving the signal value output, is stored according to the microprocessor itself
The program of unit storage determines the stroke of key.
In this embodiment as can be seen that the function of spring is become as capacitance electrode, rebound key and to user's pressure
Change experience.Wherein, the pedestal can be PCB (Printed circuit board, printed circuit board) plate.
By content described above as can be seen that in embodiments of the present invention, only passing through the variation of elastic connection unit
It just can determine that out the stroke of key, thus, key scheme of the invention has structure design simple, at low cost, high sensitivity,
High reliablity, the advantages that being easily assembled.
The embodiment of the invention also provides a kind of terminal devices, including above-mentioned key.Wherein the terminal device can be
Mobile terminal, such as mobile phone.It since the press-key structure that the terminal device includes is simple, is easily assembled, therefore, the corresponding terminal is set
Standby assembling is also more convenient.
As shown in figure 4, the embodiment of the invention also provides a kind of methods for determining above-mentioned key stroke, comprising:
Step 41, when key is pressed, the capacitance signal processing unit of key incudes the elastic connection list of the key
The variation of the capacitor of member；
Step 42, the capacitance signal processing unit are true according to the variation of the capacitor of the elastic connection unit sensed
The stroke of the fixed key.
By taking elastic connection unit is spring as an example, when a user presses a key, spring is compressed, between each ring of spring
Distance Shortened, capacitance increase.The variation of capacitance on capacitance signal processing unit detecting real-time to spring, and its capacitance is converted
For the signal value output of corresponding number, the stroke of key is determined according to the program stored in the memory.
In order to reduce the influence that finger changes elastic connection cell capacitance value, increase the distance between finger and spring,
Separating element is also provided between the keycap and the spring.At this point, the step 51 is specially the capacitive sensing
Unit is that the elastic connection unit electricity is sensed by the separating element being arranged between keycap and the elastic connection unit
The variation of appearance.
As previously mentioned, the capacitance signal processing unit includes: capacitive sensing unit, signal processing unit.Therefore, described
Step 42 includes: that the capacitive sensing unit is defeated according to the variation of the capacitor of the elastic connection unit sensed generation signal
It is worth out, and the signal value output is sent to the signal processing unit；The signal processing unit is defeated according to the signal
Value determines the stroke of the key out.
Since the structure of key is simple, determine that key stroke is more convenient using the method for the embodiment of the present invention, it is real
It is strong with property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (6)
1. a kind of key characterized by comprising keycap, elastic connection unit, pedestal, capacitance signal processing unit；
The keycap is connect by the elastic connection unit with the pedestal；
The elastic connection unit is connect with the capacitance signal processing unit, and the capacitance signal processing unit is arranged described
On pedestal；
When key is pressed, the capacitance variations of the elastic connection unit；The capacitance signal processing unit is according to sensing
The variation of capacitor of the elastic connection unit determine the stroke of the key；
The capacitance signal processing unit includes: capacitive sensing unit, signal processing unit；
The capacitive sensing unit, the signal processing unit are arranged on the pedestal, the elastic connection unit and described
Signal processing unit is connect with the capacitive sensing unit respectively；
When key is pressed, the capacitive sensing unit is raw according to the variation of the capacitor of the elastic connection unit sensed
The signal processing unit is sent at signal value output, and by the signal value output；The signal processing unit is according to institute
State the stroke that signal value output determines the key；
Separating element is provided between the keycap and the elastic connection unit；
The elastic connection unit includes spring, and the capacitive sensing unit includes capacitive sensing chip.
2. key according to claim 1, which is characterized in that the signal processing unit includes: microprocessor and storage
Device；Wherein, the microprocessor determines the stroke of key using the memory after receiving the signal value output；
Alternatively, the signal processing unit includes microprocessor, the microprocessor is straight after receiving the signal value output
Connect the stroke of determining key.
3. key according to claim 1 to 2, which is characterized in that the elastic connection unit is arranged in the keycap
Downside or inside.
4. key according to claim 1, which is characterized in that the separating element includes plastic parts.
5. a kind of terminal device, which is characterized in that the terminal device includes any key of preceding claims 1-4.
6. a kind of method of any key stroke of determining claim 1-4 characterized by comprising
When key is pressed, the capacitance signal processing unit of key incudes the change of the capacitor of the elastic connection unit of the key
Change；
The capacitance signal processing unit determines the key according to the variation of the capacitor of the elastic connection unit sensed
Stroke；
The capacitance signal processing unit is incuded by the separating element being arranged between keycap and the elastic connection unit
To the variation of the elastic connection cell capacitance；
The capacitance signal processing unit generates signal output according to the variation of the capacitor of the elastic connection unit sensed
It is worth, and determines the stroke of the key according to the signal value output；Or the capacitance signal processing unit includes: capacitor sense
Unit, signal processing unit are answered, the capacitive sensing unit is capacitive sensing chip, and the elastic connection unit is spring；Institute
State the stroke that capacitance signal processing unit determines the key according to the variation of the capacitor of the elastic connection unit sensed
Including: the capacitive sensing unit generates signal value output according to the variation of the capacitor of the elastic connection unit sensed,
And the signal value output is sent to the signal processing unit；The signal processing unit is true according to the signal value output
The stroke of the fixed key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510205661.2A CN104836562B (en) | 2015-04-27 | 2015-04-27 | A kind of key, a kind of terminal device and the method for determining key stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510205661.2A CN104836562B (en) | 2015-04-27 | 2015-04-27 | A kind of key, a kind of terminal device and the method for determining key stroke |
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| Publication Number | Publication Date |
|---|---|
| CN104836562A CN104836562A (en) | 2015-08-12 |
| CN104836562B true CN104836562B (en) | 2019-02-15 |
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| CN201510205661.2A Active CN104836562B (en) | 2015-04-27 | 2015-04-27 | A kind of key, a kind of terminal device and the method for determining key stroke |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105080137B (en) * | 2015-08-28 | 2018-03-13 | 青岛歌尔声学科技有限公司 | A kind of button, a kind of game paddle and action signal output intent |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339179A (en) * | 2010-07-16 | 2012-02-01 | 义隆电子股份有限公司 | Three-dimensional touch sensor and application method thereof |
| CN202524371U (en) * | 2012-03-13 | 2012-11-07 | 美的集团有限公司 | Capacitive sensing key structure |
| CN202918269U (en) * | 2012-11-05 | 2013-05-01 | 珠海市智迪科技有限公司 | Force feedback capacitance touch press-key structure and keyboard using the structure |
| CN103091002A (en) * | 2012-01-13 | 2013-05-08 | 骏升科技(中国)有限公司 | Capacitance type pressure sensing conversion device and method of achieving capacitance type pressure sensing on low-end singlechip |
| CN103377841A (en) * | 2012-04-12 | 2013-10-30 | 吴长隆 | Key structure of keyboard and manufacturing method thereof |
| CN204009756U (en) * | 2014-06-24 | 2014-12-10 | 黄晓生 | Electrostatic capacity type is contactless keyboard |
| CN204761411U (en) * | 2015-04-27 | 2015-11-11 | 青岛歌尔声学科技有限公司 | Button, terminal equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1136939A3 (en) * | 2000-03-14 | 2004-04-14 | Alps Electric Co., Ltd. | Capacitance change-based input device and detection device |
-
2015
- 2015-04-27 CN CN201510205661.2A patent/CN104836562B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339179A (en) * | 2010-07-16 | 2012-02-01 | 义隆电子股份有限公司 | Three-dimensional touch sensor and application method thereof |
| CN103091002A (en) * | 2012-01-13 | 2013-05-08 | 骏升科技(中国)有限公司 | Capacitance type pressure sensing conversion device and method of achieving capacitance type pressure sensing on low-end singlechip |
| CN202524371U (en) * | 2012-03-13 | 2012-11-07 | 美的集团有限公司 | Capacitive sensing key structure |
| CN103377841A (en) * | 2012-04-12 | 2013-10-30 | 吴长隆 | Key structure of keyboard and manufacturing method thereof |
| CN202918269U (en) * | 2012-11-05 | 2013-05-01 | 珠海市智迪科技有限公司 | Force feedback capacitance touch press-key structure and keyboard using the structure |
| CN204009756U (en) * | 2014-06-24 | 2014-12-10 | 黄晓生 | Electrostatic capacity type is contactless keyboard |
| CN204761411U (en) * | 2015-04-27 | 2015-11-11 | 青岛歌尔声学科技有限公司 | Button, terminal equipment |
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| CN104836562A (en) | 2015-08-12 |
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