CN204836127U - Button, terminal equipment - Google Patents
Button, terminal equipment Download PDFInfo
- Publication number
- CN204836127U CN204836127U CN201520264252.5U CN201520264252U CN204836127U CN 204836127 U CN204836127 U CN 204836127U CN 201520264252 U CN201520264252 U CN 201520264252U CN 204836127 U CN204836127 U CN 204836127U
- Authority
- CN
- China
- Prior art keywords
- metal electrode
- keycap
- button
- signal processing
- processing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a button, terminal equipment relates to button technical field to improve the reliability of button. The button includes: first key cap, second key cap, linkage unit, base, a metal electrode, the 2nd metal electrode, capacitor signal processing unit, first key cap setting is on the base, and the second key cap passes through linkage unit and pedestal connection, a metal electrode sets up on the casing of first key cap, and the corresponding setting of the 2nd metal electrode is on the casing of second key cap, capacitor signal processing unit sets up on the base, and a metal electrode and the 2nd metal electrode are connected with capacitor signal processing unit respectively, when pressing down the button, the area that a metal electrode is relative with the 2nd metal electrode changes, the stroke of button is confirmed in the change of the area that a metal electrode is relative with the 2nd metal electrode that the capacitor signal processing unit basis was sensed. The reliability of this button is higher.
Description
Technical field
The utility model relates to button technical field, particularly a kind of button, a kind of terminal equipment.
Background technology
At present, analogue-key majority adds the mode such as carbon film, Hall by potentiometer and silicagel pad and realizes.Wherein, add by potentiometer and silicagel pad the press-key structure design that carbon film mode realizes more complicated, and error is comparatively large, and structure precision is required higher by the analogue-key that Hall mode realizes.Therefore, button reliability of the prior art is poor.
Utility model content
In view of this, main purpose of the present utility model is a kind of a kind of method providing button, terminal equipment and determine key stroke, in order to improve the reliability of button.
For achieving the above object, the technical solution of the utility model is achieved in that
On the one hand, the utility model provides a kind of button, comprising: the first keycap, the second keycap, linkage unit, pedestal, the first metal electrode, the second metal electrode, capacitance signal processing unit;
Described first keycap is arranged on described pedestal, and described second keycap is connected with described pedestal by described linkage unit;
Described first metal electrode is arranged on the housing of described first keycap, and what described second metal electrode was corresponding is arranged on the housing of described second keycap;
Described capacitance signal processing unit is arranged on described pedestal, and described first metal electrode is connected with described capacitance signal processing unit respectively with described second metal electrode;
When button is pressed, the area change that described first metal electrode is relative with described second metal electrode; Described capacitance signal processing unit determines the stroke of described button according to the change of described first metal electrode sensed area relative with described second metal electrode.
Wherein, described first keycap is different with the diameter of described second keycap;
When the diameter of described first keycap is less than the diameter of described second keycap, described first metal electrode is arranged on the external shell of described first keycap, and described second metal electrode is arranged on the inner shell of described second keycap;
When the diameter of described first keycap is greater than described second keycap, described first metal electrode is arranged on the inner shell of described first keycap, and described second metal electrode is arranged on the external shell of described second keycap.
Wherein, when the diameter of described first keycap is less than the diameter of described second keycap, described first metal electrode is arranged on the external shell of described first keycap, described second metal electrode be arranged on described second keycap with the correspondence position of the inner shell of described first metal electrode;
When the diameter of described first keycap is greater than described second keycap, described first metal electrode is arranged on the inner shell of described first keycap, described second metal electrode be arranged on described second keycap with the correspondence position of the external shell of described first metal electrode.
Wherein, described first metal electrode and/or described second metal electrode are open loop metal electrode, or described first metal electrode and/or described second metal electrode are closed loop metal electrode.
Wherein, described capacitance signal processing unit comprises: capacitive sensing unit, signal processing unit;
Described capacitive sensing unit is arranged on described pedestal, and described first metal electrode is connected with described capacitive sensing unit respectively with described second metal electrode;
Described signal processing unit is arranged on described pedestal, is connected with described capacitive sensing unit;
When button is pressed, described capacitive sensing unit generates signal value output according to the change of described first metal electrode sensed area relative with described second metal electrode, and described signal value output is sent to signal processing unit; Described signal processing unit determines the stroke of described button according to described signal value output.
Wherein, described signal processing unit comprises: microprocessor and memory; Wherein, described microprocessor, after receiving described signal value output, utilizes the stroke of described memory determination button;
Or described signal processing unit comprises microprocessor, the stroke of button directly determined by described microprocessor receiving described signal value output.
Wherein, described linkage unit is arranged on downside or the inside of described first keycap, and described linkage unit comprises spring or silicagel pad; Described capacitive sensing unit comprises capacitive sensing chip.
Compared with prior art, the beneficial effects of the utility model are: as seen from the above, and the button of the utility model embodiment consists of capacitor element, and structure is simple, and because capacitor element reliability is better, therefore, compared with prior art, this button reliability is high.
Second aspect, the utility model provides a kind of terminal equipment, comprises aforesaid button.
Compared with prior art, the beneficial effects of the utility model are: the button reliability comprised due to this terminal equipment is high, and therefore, the reliability of this terminal equipment have also been obtained raising accordingly.
Accompanying drawing explanation
Fig. 1 is the first schematic diagram of the button of the utility model embodiment;
Fig. 2 is the second schematic diagram of the button of the utility model embodiment;
Fig. 3 is the 3rd schematic diagram of the button of the utility model embodiment;
Fig. 4 is the flow chart of the method for the above-mentioned key stroke of determination of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
As shown in Figure 1, the button of the utility model embodiment comprises: the first keycap 11, second keycap 12, linkage unit 13, pedestal 14, the first metal electrode 15, second metal electrode 16, capacitance signal processing unit 17.
Wherein, described first keycap 11 is arranged on described pedestal 14, and described second keycap 12 is connected with described pedestal 14 by described linkage unit 13.Described first metal electrode establishes 15 to put on the housing of described first keycap 11, on the housing being arranged on described second keycap 12 that described second metal electrode 16 is corresponding.Described capacitance signal processing unit 17 is arranged on described pedestal 14, and described first metal electrode 15 is connected with described capacitance signal processing unit 17 respectively with described second metal electrode 16.
When button is pressed, the area change that described first metal electrode is relative with described second metal electrode; Described capacitance signal processing unit determines the stroke of described button according to the change of described first metal electrode sensed area relative with described second metal electrode.
In a particular application, conveniently pressing keys, described first keycap 11 is different with the diameter of described second keycap 12, and thus the relative position relation of described first metal electrode and described second metal electrode is also different.Because the utility model embodiment mainly determines the stroke of button based on difference due to the relative area of first, second metal electrode, therefore, as long as the setting of first, second metal electrode makes the change occurring relative area both them in the process be pressed along with button.It should be noted that, the diameter of first, second keycap described also can be designed to identical, as long as make the second keycap can produce displacement by relative first keycap when being pressed.The diameter of above second keycap is different below, elaborates to the relation of first, second metal electrode.
As shown in Figure 1, the structure of button when the diameter of what this figure showed is the first keycap 11 is less than described second keycap 12.In this case, described first metal electrode 15 is arranged on the external shell of described first keycap 11, and described second metal electrode 16 is arranged on the inner shell of described second keycap 12.In order to strengthen consistency and the interference free performance of button, described first metal electrode is arranged on the external shell of described first keycap, described second metal electrode be arranged on the inner shell of described second keycap, with the correspondence position of the external shell of described first metal electrode.Such as, if described first metal electrode is arranged on the left part of the external shell of the first keycap, so the second metal electrode can be arranged on the left part on the inner shell of the second keycap.And described first metal electrode can be completely relative with the second metal electrode, also can partly relatively.
As shown in Figure 2, the structure of button when the diameter of what this figure showed is the first keycap 11 is greater than described second keycap 12.In this case, described first metal electrode 15 is arranged on the external shell of described first keycap 11, and described second metal electrode 16 is arranged on the inner shell of described second keycap 12.In order to strengthen consistency and the interference free performance of button, described first metal electrode is arranged on the external shell of described first keycap, described second metal electrode be arranged on the inner shell of described second keycap, with the correspondence position of the external shell of described first metal electrode.Such as, if described first metal electrode be arranged on the first keycap external shell on left part, so the second metal electrode can be arranged on the left part on the inner shell of the second keycap.And described first metal electrode can be completely relative with the second metal electrode, also can partly relatively.
In a particular application, first, second metal electrode described can choice for use open loop metal electrode, also can choice for use closed loop metal electrode, does not limit in the utility model.Concrete use open loop or closed loop metal electrode, this is relevant with the model of capacitive sensing unit selected and button size.
In the utility model embodiment, described capacitance signal processing unit can for being integrated with the chip of capacitive sensing unit, signal processing unit.Now, described capacitance signal processing unit generates signal value output according to the change of described first metal electrode sensed area relative with described second metal electrode, and determines the stroke of described button according to described signal value output.Or in the utility model embodiment, described capacitance signal processing unit 17 can comprise capacitive sensing unit, signal processing unit.Described capacitive sensing unit is arranged on described pedestal 14, and described first metal electrode 15 is connected with described capacitive sensing unit respectively with described second metal electrode 16, and described signal processing unit is arranged on described pedestal 14, is connected with described capacitive sensing unit.When button is pressed, described capacitive sensing unit generates signal value output according to the change of described first metal electrode sensed area relative with described second metal electrode, and described signal value output is sent to signal processing unit; Described signal processing unit determines the stroke of described button according to described signal value output.Wherein, described capacitive sensing unit comprises capacitive sensing chip.
In order to obtain key stroke accurately, described signal processing unit comprises: microprocessor and memory.When a user presses a key, coincidence (relative) area of first, second two blocks of metal electrodes can increase, and then the electric capacity to be formed by two cube electrodes can increase, capacitive sensing chip detecting real-time changes to the capacitance of two pieces of metal electrode strokes, and is converted into corresponding digital signal output valve.This signal value output is transmitted to microprocessor, microprocessor after receiving described signal value output, according to the stroke of the program determination button stored in described memory.Certainly, in order to further cost-saving, described signal processing unit also can only include microprocessor, and this microprocessor itself is provided with memory cell, is used for storage program.Now, described microprocessor after receiving described signal value output, according to the stroke of the program determination button of self cell stores of described microprocessor.
Equally, in the utility model embodiment, the position of linkage unit is not also limited.As shown in Figure 1, described linkage unit can be arranged on the inside of described second keycap; Certainly, described linkage unit 13 also can be arranged on the downside (as shown in Figure 3) of described second keycap, is also namely arranged on the edge of the close pedestal of the housing of described keycap.Further, described linkage unit can the elastic component such as choice for use spring (as shown in Figure 2), silicagel pad (as shown in Figure 1, Figure 3).Described pedestal can be PCB (Printedcircuitboard, printed circuit board (PCB)) plate.
As seen from the above, as seen from the above, the button of the utility model embodiment consists of capacitor element, and structure is simple, and because capacitor element reliability is better, therefore, compared with prior art, this button reliability is high, and easily assemble, cost is low, highly sensitive.
The terminal equipment of the utility model embodiment also can comprise above-mentioned arbitrary button.Wherein, described terminal equipment can comprise mobile terminal, such as mobile phone etc.The button reliability comprised due to this terminal equipment is high, and therefore, the reliability of this terminal equipment have also been obtained raising accordingly.
As shown in Figure 3, the method for the above-mentioned key stroke of determination of the utility model embodiment, comprising:
Step 31, when button is pressed, the capacitance signal processing unit of button responds to the change of the first metal electrode of described button area relative with described second metal electrode;
Step 32, described capacitance signal processing unit determine the stroke of described button according to the change of described first metal electrode sensed area relative with described second metal electrode.
As previously mentioned, described capacitance signal processing unit comprises: capacitive sensing unit, signal processing unit.Wherein, described capacitive sensing unit can be capacitive sensing chip.Accordingly, in this step, when a user presses a key, coincidence (relative) area of first, second two blocks of metal electrodes can increase, and then the electric capacity to be formed by two cube electrodes can increase, capacitive sensing chip detecting real-time changes to the capacitance of two pieces of metal electrode strokes, is converted into corresponding digital signal output valve, and described signal value output is sent to signal processing unit, described signal processing unit determines the stroke of described button according to described signal value output.
Or in the utility model embodiment, described capacitance signal processing unit can for being integrated with the chip of capacitive sensing unit, signal processing unit.Described capacitance signal processing unit generates signal value output according to the change of described first metal electrode sensed area relative with described second metal electrode, and determines the stroke of described button according to described signal value output.
In sum, because the reliability of this button is high, structure is simple, therefore, utilizes the stroke operation of the method determination button convenient.Utilize the utility model embodiment can improve analogue-key accuracy, reduce system power dissipation, increase button useful life (according to selection silicagel pad performance, more than 2,000,000 times can be reached), structure is simple for assembly process is beneficial to production.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection range of the present utility model.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., be all included in protection range of the present utility model.
Claims (8)
1. a button, is characterized in that, comprising: the first keycap, the second keycap, linkage unit, pedestal, the first metal electrode, the second metal electrode, capacitance signal processing unit;
Described first keycap is arranged on described pedestal, and described second keycap is connected with described pedestal by described linkage unit;
Described first metal electrode is arranged on the housing of described first keycap, and what described second metal electrode was corresponding is arranged on the housing of described second keycap;
Described capacitance signal processing unit is arranged on described pedestal, and described first metal electrode is connected with described capacitance signal processing unit respectively with described second metal electrode;
When button is pressed, the area change that described first metal electrode is relative with described second metal electrode; Described capacitance signal processing unit determines the stroke of described button according to the change of described first metal electrode sensed area relative with described second metal electrode.
2. button according to claim 1, is characterized in that, wherein, described first keycap is different with the diameter of described second keycap;
When the diameter of described first keycap is less than the diameter of described second keycap, described first metal electrode is arranged on the external shell of described first keycap, and described second metal electrode is arranged on the inner shell of described second keycap;
When the diameter of described first keycap is greater than described second keycap, described first metal electrode is arranged on the inner shell of described first keycap, and described second metal electrode is arranged on the external shell of described second keycap.
3. button according to claim 2, it is characterized in that, when the diameter of described first keycap is less than the diameter of described second keycap, described first metal electrode is arranged on the external shell of described first keycap, and described second metal electrode is arranged on the position corresponding with described first metal electrode of the inner shell of described second keycap;
When the diameter of described first keycap is greater than described second keycap, described first metal electrode is arranged on the inner shell of described first keycap, and described second metal electrode is arranged on the position corresponding with described first metal electrode of the external shell of described second keycap.
4., according to the arbitrary described button of claim 1-3, it is characterized in that, described first metal electrode and/or described second metal electrode are open loop metal electrode, or described first metal electrode and/or described second metal electrode are closed loop metal electrode.
5., according to the arbitrary described button of claim 1-3, it is characterized in that, described capacitance signal processing unit comprises: capacitive sensing unit, signal processing unit;
Described capacitive sensing unit is arranged on described pedestal, and described first metal electrode is connected with described capacitive sensing unit respectively with described second metal electrode; Described signal processing unit is arranged on described pedestal, is connected with described capacitive sensing unit;
When button is pressed, described capacitive sensing unit generates signal value output according to the change of described first metal electrode sensed area relative with described second metal electrode, and described signal value output is sent to signal processing unit; Described signal processing unit determines the stroke of described button according to described signal value output.
6. button according to claim 5, is characterized in that, described signal processing unit comprises: microprocessor and memory; Wherein, described microprocessor, after receiving described signal value output, utilizes the stroke of described memory determination button;
Or described signal processing unit comprises microprocessor, the stroke of button directly determined by described microprocessor after receiving described signal value output.
7. button according to claim 5, is characterized in that, described linkage unit is arranged on downside or the inside of described first keycap, and described linkage unit comprises spring or silicagel pad; Described capacitive sensing unit comprises capacitive sensing chip.
8. a terminal equipment, is characterized in that, described terminal equipment comprises the arbitrary described button of aforementioned claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264252.5U CN204836127U (en) | 2015-04-27 | 2015-04-27 | Button, terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264252.5U CN204836127U (en) | 2015-04-27 | 2015-04-27 | Button, terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204836127U true CN204836127U (en) | 2015-12-02 |
Family
ID=54693679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520264252.5U Withdrawn - After Issue CN204836127U (en) | 2015-04-27 | 2015-04-27 | Button, terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204836127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836564A (en) * | 2015-04-27 | 2015-08-12 | 青岛歌尔声学科技有限公司 | Key, terminal device and method for determining stroke of key |
-
2015
- 2015-04-27 CN CN201520264252.5U patent/CN204836127U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836564A (en) * | 2015-04-27 | 2015-08-12 | 青岛歌尔声学科技有限公司 | Key, terminal device and method for determining stroke of key |
| CN104836564B (en) * | 2015-04-27 | 2018-09-04 | 青岛歌尔声学科技有限公司 | A kind of button, a kind of terminal device and the method for determining key stroke |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20180904 |