CN206099937U - Control circuit of pressure touch key electromagnetism stove panel - Google Patents
Control circuit of pressure touch key electromagnetism stove panel Download PDFInfo
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- CN206099937U CN206099937U CN201620896353.9U CN201620896353U CN206099937U CN 206099937 U CN206099937 U CN 206099937U CN 201620896353 U CN201620896353 U CN 201620896353U CN 206099937 U CN206099937 U CN 206099937U
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Abstract
The utility model discloses a control circuit of pressure touch key electromagnetism stove panel, this control circuit be including control panel and control circuit, the last touch sensing circuit that is provided with of control panel, touch sensing circuit hugs closely in electromagnetism stove panel below, connects in control circuit, touch induction circuit is pressure drag formula strain sensor. The utility model discloses the control button that can make the electromagnetism stove can avoid greasy dirt, hot water juice, rag, water to pressure touch key's harmful effects, completely can the normal running under the condition that the panel was covered by water completely.
Description
Technical field
This utility model belongs to electromagentic furnace technology field, more particularly to a kind of control circuit on electromagnetic oven road.
Background technology
Traditional mechanical button electromagnetic oven panel is required for out via, affects attractive in appearance, and difficult cleaning is fragile.
Therefore, people devise the electromagnetic oven of capacitance type touch key control, by sensing reality of the electric capacity to touch key-press
The control of existing electromagnetic oven.Capacitance type touch key electromagnetic oven panel has very big relative to traditional mechanical button electromagnetic oven panel
Improve, but after capacitance type touch key use time length, button is covered by greasy dirt, button can be caused insensitive or failure；Soup
Juice overflows and is likely to cause skip key；In electromagnetic oven work, when removing to clear up key panel with rag, skip key can be caused；On the market
Most of capacitance type touch key is more sensitive to the interference for coming from water, and these factors are all brought not to the control of electromagnetic oven
Just.
Utility model content
Based on this, thus primary mesh of the present utility model be to provide a kind of control of pressure touch button electromagnetic oven panel
Circuit, the control circuit solve problem above by pressure touch button, the control button of electromagnetic oven is avoided
The harmful effect of greasy dirt, decoction, rag, water to pressure touch button, completely can be with the case where panel is completely covered by water
Normal operating.
Another mesh ground of the present utility model is to provide a kind of control circuit of pressure touch button electromagnetic oven panel, should
Control circuit realizes simplicity, with low cost, easy to control.
For achieving the above object, the technical solution of the utility model is：
A kind of control circuit of pressure touch button electromagnetic oven panel, the control circuit include control panel and control electricity
Road, is provided with touch control induction circuit on the control panel, it is characterised in that the touch control induction circuit is close to electromagnetism boiler face
Below plate, it is connected in control circuit；The touch control induction circuit is pressure resistance type strain transducer.
Touch control induction circuit is pressure resistance type strain transducer, and its principle is that the strain variation on device is converted into a kind of electricity
The Sensitive Apparatuses of signal, external force make resistance strain gage produce deformation, make the resistance of foil gauge change, so that being added in resistance
On voltage change, sensor outputs signal to MCU, judges effective button, responds to users action.
The touch control induction circuit is parallel to what is realized together by a plurality of pressure resistance type strain transducers.
The control circuit is provided with a plurality of pressure touch passages corresponding to pressure resistance type strain transducer.
Further, the touch control induction circuit is integrated with MCU, is realized by chip CSA37FX60.
Further, the pin AINPX and AINNX of the chip CSA37FX60 is combined into a pressure touch passage, institute
Stating AINPX and AINNX has 0～15 respectively, and an AINPX and AINNX is constituted a pair, is combined into a difference analogue input
Pressure touch passage, when external force makes resistance strain gage produce deformation, then the signal on pressure touch passage can be changed, so as to
Produce touching signals.
The control circuit of the pressure touch button electromagnetic oven panel realized by this utility model passes through pressure touch button solution
Determined problem above, thus enable the control button of electromagnetic oven greasy dirt, decoction, rag, water be avoided to pressure touch button
Harmful effect, completely can be with normal operating in the case where panel is completely covered by water.
Description of the drawings
Fig. 1 is the structural representation that this utility model is implemented.
Fig. 2 is the circuit diagram of the implemented control circuit of this utility model.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain
This utility model, is not used to limit this utility model.
Shown in Fig. 1, the control circuit of pressure touch button electromagnetic oven panel is realized by this utility model, the control electricity
Road includes control panel 3 and control circuit 4, and control panel 3 is typically secured on electromagnetic oven panel 1, the lower section of control panel 3
It is glued with touch control induction circuit 2；Touch control induction circuit 2 is pressure resistance type strain transducer, and is connected in control circuit.
Touch induction circuit is set to pressure resistance type strain transducer by this utility model, and the strain on electronic devices and components is become
Change is converted into a kind of Sensitive Apparatuses of the signal of telecommunication, and external force can make resistance strain gage produce deformation, and deformation causes pressure resistance type to be answered
The resistance for becoming strain gauge of sensor changes, so that be added in ohmically voltage changing, then pressure resistance type strain is passed
Sensor outputs signal to MCU, and MCU judges effective button, responds to users action.
Again as shown in Fig. 2 the circuit diagram realized by this utility model, in figure, touch control induction circuit 2 is integrated in MCU
Together, realized by chip CSA37FX60, the pin AINPX and AINNX of chip CSA37FX60 are combined into a pressure touch
Passage, AINPX and AINNX are constituted a pair, are combined into the pressure touch passage of a difference analogue input, AINPX with
AINNX has 0-15 respectively, therefore, this circuit diagram has 16 button passages, when strain transducer is deformed upon, the letter on passage
Number difference change, determine whether there is button and press.As shown in Fig. 2 circuit diagram is comparatively simple, it is only necessary to by differential signal foot AINPX
It is connected in pressure resistance type strain transducer with AINNX, all of process is all integrated in inside MCU, two analog front-end modules
FAE, each FAE module include 2 PGA, 1 12 DAC, 1 12 ADC.2 PGA constitute two-stage signal gain, that is, amplify
The signal transmitted in pressure resistance type strain transducer gives MCU process.1 12 DAC carries out ADC input offset voltage calibrations.1 12
Position ADC ensure that the precision of modulus signal conversion.
Extensively, any material that miniature deformation occurs can make electromagnetism to the selection of pressure touch button electromagnetic oven panel
Furnace panel, and key shape, panel size can be with variations.Touch condition is that contact panel occurs miniature deformation, shows to differ
Surely staff is wanted to touch, user is with glove, or a chopsticks can trigger actuation of keys.Pressure touch button and electromagnetism boiler face
Plate glue laminating, therefore can be with water proof and dust proof.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (5)
1. a kind of control circuit of pressure touch button electromagnetic oven panel, the control circuit include control panel and control electricity
Road, is provided with touch control induction circuit on the control panel, it is characterised in that the touch control induction circuit is close to electromagnetism boiler face
Below plate, it is connected in control circuit；The touch control induction circuit is pressure resistance type strain transducer.
2. the control circuit of pressure touch button electromagnetic oven panel as claimed in claim 1, it is characterised in that the touch-control sense
Circuit is answered to be parallel to what is realized together by a plurality of pressure resistance type strain transducers.
3. the control circuit of pressure touch button electromagnetic oven panel as claimed in claim 1, it is characterised in that the control electricity
Road is provided with a plurality of pressure touch passages corresponding to pressure resistance type strain transducer.
4. the control circuit of pressure touch button electromagnetic oven panel as claimed in claim 1, it is characterised in that the touch-control sense
Answer circuit to integrate with MCU, realized by chip CSA37FX60.
5. the control circuit of pressure touch button electromagnetic oven panel as claimed in claim 4, it is characterised in that the chip
The pin AINPX and AINNX of CSA37FX60 is combined into a pressure touch passage, and the AINPX and AINNX has 0～15 respectively
Individual, an AINPX and AINNX is constituted a pair, is combined into the pressure touch passage of a difference analogue input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896353.9U CN206099937U (en) | 2016-08-17 | 2016-08-17 | Control circuit of pressure touch key electromagnetism stove panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896353.9U CN206099937U (en) | 2016-08-17 | 2016-08-17 | Control circuit of pressure touch key electromagnetism stove panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099937U true CN206099937U (en) | 2017-04-12 |
Family
ID=58468769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620896353.9U Active CN206099937U (en) | 2016-08-17 | 2016-08-17 | Control circuit of pressure touch key electromagnetism stove panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206099937U (en) |
-
2016
- 2016-08-17 CN CN201620896353.9U patent/CN206099937U/en active Active
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