CN206164499U - Touch key - Google Patents
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- CN206164499U CN206164499U CN201621191097.XU CN201621191097U CN206164499U CN 206164499 U CN206164499 U CN 206164499U CN 201621191097 U CN201621191097 U CN 201621191097U CN 206164499 U CN206164499 U CN 206164499U
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Abstract
The utility model provides a touch key for solve the problem of present touch key inevitable spurious triggering. Wherein, touch key includes: a touch key and the 2nd touch key, a touch key and the 2nd touch key, a touch key include a hollow region, and the 2nd touch key sets up in hollow region, and this scheme has improved the discernment efficiency of touch key to correct triggering signal.
Description
Technical field
This utility model is related to touch screen technology field, more particularly to a kind of touch key-press.
Background technology
At present, general capacitance type touch key, is all that (Printed Circuit Board, Chinese is in PCB
Printed circuit board) on leave the Copper Foil of certain area, its size is suitable with the finger area of people, and from this Copper Foil one is drawn
Very thin copper cash, is connected on the IC of signals collecting (touch chip).When the finger of people touches this Copper Foil, Copper Foil and handss
Electric capacity between finger can change, and the change can cause faint curent change is produced on copper cash, touch chip and collect this
After individual curent change, will be considered that button is pressed.
Touch key-press in household electrical appliances have widely use, although in the equipment of some waterproofs, touch key-press is in structure
On seal, for example, such as washing machine.But during if water droplet on touch key-press, it is possible to touch key-press can be triggered,
Cause misoperation.
For the problems referred to above, if using resistive touch, the false triggering that water droplet can be avoided to cause.But resistive touch
Be not suitable for doing single button, it is applied to touch screen more.At present, capacitance type touch key does not also preferably avoid similar mistake
Trigger method, most of scheme is all to avoid some false triggerings as far as possible using the multiple Filtering Processing of software.However, using
The processing mode of software filtering, although can to a certain extent avoid the false triggering of touch key-press.But whole cannot be excluded
False triggering probability, for example, there is water droplet, and the phase of the of different sizes of water droplet, water droplet and touch key-press on button
It is different to position, can all cause different capacitance variations, these changes can all cause interference signal.Current touch key-press by
In the restriction of its structure, it is impossible to know the situation for being touched around it or being covered.When touch key-press is used, only user is led to
The trigger crossed when finger is touched is correct signal, and because software cannot filter the interference produced around touch key-press
Signal, it is impossible to distinguish interference signal and correct signal completely, cause the false triggering of button.
Utility model content
This utility model provides a kind of touch key-press, to solve currently available technology in touch key-press touch area
It is less, it is impossible to know the practical situation for being touched around touch key-press or being covered.
A kind of touch key-press is present embodiments provided, including：First touch key-press and the second touch key-press；First touches
Button includes a hollow region, and the second touch key-press is arranged in hollow region.
Wherein, the first touch key-press is annular.
Wherein, the first touch key-press is the Copper Foil of annular.
Wherein, the second touch key-press is circle.
The scheme that this utility model embodiment is provided, it is another attached by arranging in the range of the predeterminable range of a touch key-press
Plus touch key-press, the situation of the touch signal that can be detected according to additional key determines and touched around touch key-press or coating
The situation of lid, whether the situation judges touch key-press by the basis of false touch offer so as to according to, so as to improve touch key-press
Recognition efficiency to correct trigger.
Description of the drawings
Fig. 1 is the schematic diagram of the touch key-press for passing through provided in this utility model first embodiment；
Fig. 2 is the schematic diagram that the touch key-press provided in this utility model first embodiment detects circuit；
Fig. 3 is the schematic diagram of the touch key system provided in this utility model second embodiment；
Fig. 4 is the flow chart of the touch key-press response method provided in this utility model 3rd embodiment.
Specific embodiment
The false triggering of touch key-press, this utility model cannot be avoided in order to solve the problems, such as prior art to provide a kind of touching
Button is touched, below in conjunction with accompanying drawing and embodiment, this utility model is further elaborated.It should be appreciated that this place
The specific embodiment of description only limits this utility model to explain this utility model, not.
First embodiment
A kind of touch key-press is present embodiments provided, the touch key-press mainly includes following ingredient：
First touch key-press and the second touch key-press；Wherein, the first touch key-press is arranged at and is with the second touch key-press
In the range of the predeterminable range at center.
Preferably, the first touch key-press involved in the present embodiment can include a hollow region, and second touches
Button is arranged in the hollow region.
Fig. 1 is the schematic diagram of a kind of preferred touch key-press that the present embodiment is provided, as shown in figure 1, the touch key-press
First touch key-press 11 is annular, and the second touch key-press 12 is circle, the annulus of the first touch key-press 11, and the second touch
The circular center of circle of button 12 is identical, and second touch key-press 12 is arranged in the border circular areas that the first touch key-press 11 is formed
Portion.
In the present embodiment, the first touch key-press can be the annular Copper Foil with predetermined width, the second touch key-press
Then it is not limited to use Copper Foil for circular Copper Foil, but the first touch key-press and the second touch key-press involved by this utility model
It is made, on the basis of capacitance type touch key demand is met, can also be and be made up of other materials.
The first touch key-press and the second touch key-press involved by the present embodiment is by the touch key-press inspection shown in Fig. 2
Slowdown monitoring circuit is realizing the detection to touch signal.
In Fig. 2, " VCC " and " GND " is respectively the positive pole and negative pole of circuit power pack." SW1 " and " SW2 " is respectively
Two touch key-presss and the first touch key-press." SCL " and " SDA " for touch chip and MCU (Microcontroller Unit,
Micro-control unit) order wire.When there is touch key-press to press, touch chip touch key-press is detected by " SCL " and " SDA "
To touch signal pass to MCU." R1/R2/R3/R4/R5/R6 " is Chip-R.
Wherein, inner " SW1 " and " SW2 " is although in fig. 2 it is shown that two touch key-presss, in the pcb conduct
One touch key-press is used, and the function of realization is also the function of 1 touch key-press.
Second embodiment
A kind of touch key system is present embodiments provided, the system includes that the first touch in above-mentioned first embodiment is pressed
Key and the second touch key-press, the system also includes processor, and the processor is used to be touched according to the first touch key-press and/or second
Touch the touch signal that button detects to determine whether to respond the touch signal that the second touch key-press is detected.
Fig. 3 is schematic diagram (figure of a kind of preferred touch key system of the touch key system that the present embodiment is provided
Not shown in MCU), as shown in figure 3, SW1 is the Copper Foil of one piece of circle, R1 is connected to by a fine rule, be connected to touch
Chip IC 1.SW2 is the circle Copper Foil being centered around around SW1, and by a fine rule R2 is connected to, and is connected to touch chip
IC1。
SW1 is used for realizing touch function.When the finger of people touches SW1, touch chip and collect the electric current for flowing through R1
Change, it is believed that SW1 is pressed.If when the finger of people touches the Copper Foil of SW2, touching chip and also can collect and flow through R2
Electric current is changed, it is believed that SW2 is pressed.
The effect of SW2 be in order to avoid button nearby if drip or button continue by some objects cover or press and
Cause SW1 false triggerings.SW2 can be understood as the additional key of SW1, and its effect is not intended to realize and SW1 same touch work(
Can, and be used to detect whether to press the effective coverage of SW1.
SW1 can be diameter about 10mm circular Copper Foil.If the finger of people presses SW1 and SW2 simultaneously, then it is assumed that
Exercise void now；If the finger of people only presses SW2, then it is assumed that finger deviates the effective coverage of button, this action
It is invalid.
When touch key-press is normally used, as finger down SW1, when not lifting, touch chip and be found that SW1 is pressed
But, signal is not sent to MCU, after waiting finger to lift, touch chip and find that SW1 is lifted again, send " just to MCU immediately
Just have button to press " signal.When finger touches SW2, no matter SW2 is in pressing or during lifting status, though touch chip
The state of SW2 can be so collected, but signal is sent all without to MCU.
Specifically, when there is water droplet to drop on touch key-press, the touch key system involved by the present embodiment is to button
Identification is divided into following several situations：
If just dropped in the effective coverage of SW1, touching chip can detect the signal that button is pressed.But
If the water droplet exists always, preset duration, such as then think that button is invalid after several seconds.The button if water droplet simply nuzzles up, due to
Time is short, and can touch SW2, also will be considered that button is invalid；If water droplet area is larger, SW1 and SW2 is covered, then recognized
It is invalid for button.
It should be noted that in the present embodiment, touch chip and MCU realize jointly it is involved in the present embodiment
The function of processor, meanwhile, the involved touch signal for being not responding to touch key-press is i.e. it is to be understood that touch in the present embodiment
Touch chip and give tacit consent to the touch key-press and be not detected by touch signal, or touch the touch signal that chip do not detect touch key-press and send out
Deliver to MCU.
In the present embodiment, processor mainly possesses following functions：
Detecting at the first touch key-press and the second touch key-press while when there is touch signal, being not responding to first
Touch signal at touch key-press and the second touch key-press；In the first touch key-press and the second touch key-press is detected only
With the presence of at the first touch key-press during touch signal, the touch signal being not responding at the first touch key-press；Touch detecting second
The duration of touch signal institute survival at button is touched not in preset time range, the touch letter being not responding at the second touch key-press
Number.
Process implement body in the present embodiment can be used for：Only in the first touch key-press and the second touch key-press, only
There is the second touch key-press that the touch signal that the second touch key-press is detected is responded in the case of detecting touch signal, otherwise do not ring
The touch signal that second touch key-press is detected, or, only in the first touch key-press and the second touch key-press, only second touches
Touch button detect touch signal and the lasting duration of the touch signal in the range of the preset duration in the case of, response second is touched
The touch signal that button is detected, is otherwise not responding to the touch signal that the second touch key-press is detected.
Touch key-press in the present embodiment uses an effective button (the second touch key-press) and an additional key (first
Touch key-press), touch key-press is solved the problems, such as by false triggering, while further touch key-press is set to into " upspringing effectively ",
Then fully achieve the purpose of false-touch prevention.
3rd embodiment
A kind of touch key-press response method is present embodiments provided, Fig. 4 is the flow chart of the method, as shown in figure 4, the party
Method includes following process：
Step 401：Receive the touch signal that the first touch key-press and the second touch key-press are detected, the first touch key-press
It is arranged in the range of the predeterminable range centered on the second touch key-press；
Step 402：The touch signal detected according to the first touch key-press and/or the second touch key-press determines whether response
The touch signal that second touch key-press is detected.
Wherein, the touch signal for being detected according to the first touch key-press and/or the second touch key-press determines whether response
The process of the touch signal that two touch key-presss are detected specifically can include：Only in the first touch key-press and the second touch key-press
In, in the case that only the second touch key-press detects touch signal, the touch signal that the second touch key-press is detected is responded, it is no
Then it is not responding to the touch signal that the second touch key-press is detected；
Or, only in the first touch key-press and the second touch key-press, only the second touch key-press detects touch signal
And in the case that the lasting duration of the touch signal is in the range of the preset duration, respond the touch letter that the second touch key-press is detected
Number, otherwise it is not responding to the touch signal that the second touch key-press is detected.
Method provided in the present embodiment can be realized by touch chip, involved in the present embodiment based on this
The touch signal that touch key-press detects that is not responding to be not detected by touching it is to be understood that touching chip and being defaulted as the touch key-press
Signal is touched, or, touch chip does not detect the transmission of touch signal to MCU by the touch key-press, meanwhile, it is not responding to touch key-press
The touch signal for detecting is also understood that and is, MCU touches the signal that chip sends according to receiving, the not touch to receiving
Signal is used as feedback.
The present embodiment is in product needed waterproof, and in the case that key number is less, and false-touch prevention effect is more obvious.It is right
In each effective button, an additional protection button (the first touch key-press i.e. in the present embodiment) can be merely add,
Arrange button again to lift effectively, it is possible to fully achieve water-proof function.Dependable performance is stablized.For the product of some water proof types,
Need first to operate button, then put into when starting working under water, similarly with preferable false-touch prevention effect.
Although being example purpose, preferred embodiment of the present utility model is had been disclosed for, those skilled in the art will anticipate
It is also possible to know various improvement, increase and replacement, therefore, scope of the present utility model should be not limited to above-described embodiment.
Claims (4)
1. a kind of touch key-press, it is characterised in that include：
First touch key-press and the second touch key-press；
First touch key-press includes a hollow region, and second touch key-press is arranged at the hollow region
It is interior.
2. touch key-press according to claim 1, it is characterised in that first touch key-press is annular.
3. touch key-press according to claim 1 and 2, it is characterised in that first touch key-press for annular copper
Paper tinsel.
4. touch key-press according to claim 1 or claim 2, it is characterised in that second touch key-press is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191097.XU CN206164499U (en) | 2016-10-31 | 2016-10-31 | Touch key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191097.XU CN206164499U (en) | 2016-10-31 | 2016-10-31 | Touch key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164499U true CN206164499U (en) | 2017-05-10 |
Family
ID=58657889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621191097.XU Active CN206164499U (en) | 2016-10-31 | 2016-10-31 | Touch key |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411310A (en) * | 2016-10-31 | 2017-02-15 | 青岛海尔科技有限公司 | Touch button and response method and system thereof |
| CN108092657A (en) * | 2018-01-04 | 2018-05-29 | 无锡市瀚为科技有限公司 | A kind of capacitor type touch switch and its triggering method of touch electrode structuring |
| CN109424280A (en) * | 2017-09-01 | 2019-03-05 | 维特汽车有限责任公司 | Capacitive sensor means and the outer handle of the vehicles |
| CN111954110A (en) * | 2020-08-14 | 2020-11-17 | 芯海科技（深圳）股份有限公司 | Earphone interaction method and earphone |
-
2016
- 2016-10-31 CN CN201621191097.XU patent/CN206164499U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411310A (en) * | 2016-10-31 | 2017-02-15 | 青岛海尔科技有限公司 | Touch button and response method and system thereof |
| CN106411310B (en) * | 2016-10-31 | 2023-09-19 | 青岛海尔科技有限公司 | Touch key, response method and system |
| CN109424280A (en) * | 2017-09-01 | 2019-03-05 | 维特汽车有限责任公司 | Capacitive sensor means and the outer handle of the vehicles |
| CN109424280B (en) * | 2017-09-01 | 2021-04-30 | 维特汽车有限责任公司 | Capacitive sensor device and vehicle outer handle |
| CN108092657A (en) * | 2018-01-04 | 2018-05-29 | 无锡市瀚为科技有限公司 | A kind of capacitor type touch switch and its triggering method of touch electrode structuring |
| CN108092657B (en) * | 2018-01-04 | 2021-09-03 | 无锡市瀚为科技有限公司 | Capacitive touch switch with structured touch electrode and triggering method thereof |
| CN111954110A (en) * | 2020-08-14 | 2020-11-17 | 芯海科技（深圳）股份有限公司 | Earphone interaction method and earphone |
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