CN208547701U - A kind of detection module, self-locking device and cook's machine - Google Patents
A kind of detection module, self-locking device and cook's machine Download PDFInfo
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- CN208547701U CN208547701U CN201821295258.9U CN201821295258U CN208547701U CN 208547701 U CN208547701 U CN 208547701U CN 201821295258 U CN201821295258 U CN 201821295258U CN 208547701 U CN208547701 U CN 208547701U
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Abstract
The utility model is suitable for intelligent appliance technical field, provides a kind of detection module, comprising: MCU；Anode connects the first diode of the I/O port of the MCU；One end connects power supply, and the other end is connected to the first resistor on the connecting line between the first diode and the MCU；The second diode that cathode is connected with the cathode of first diode；The earthing switch being connected on the connecting line between first diode cathode and the second diode cathode.The utility model embodiment is by being arranged the first diode and the second diode that cathode is connected with cathode, the connection between MCU and high pressure has been isolated, so that MCU is directly used the state of I/O port key range, to reduce the requirement of MCU, the stand-by power consumption for thereby reducing system, reduces cost.The application also provides a kind of self-locking device and cook's machine.
Description
Technical field
The utility model belongs to intelligent appliance technical field more particularly to a kind of detection module, self-locking device and cook's machine.
Background technique
With the development of society, various household electrical appliance are more and more, one is generally provided on household electrical appliance
Mechanical switch machine key, it is the indispensable a part of household electrical appliances, and major function is pressed when being booting to be powered on to household electrical appliances
Power supply, when shutdown, which presses, cuts off the power.
Mechanical switch on household electrical appliances is mostly self-lock switch, is realized to the self-locking of power supply, when self-locking open is pressed in booting
Guan Shi, switch will not be bounced, be tended to remain on, and power supply is connected and locked, and whole system powers on, and household electrical appliances continue work
Make；When pressing lower switch again, self-lock switch is bounced, and realization shutdown of cutting off the power.Household electrical appliances self-locking device passes through resistance at present
Partial pressure is sampled using AD mouth (simulation mouth) of MCU, and MCU is according to the state of sampled signal identification switch key, thus control switch
The folding of pipe.
But the requirement for increasing come key range state MCU is sampled using the AD of MCU, increase appliance system to
Machine power consumption.
Utility model content
The utility model provides a kind of detection module, it is intended to solve existing self-locking to need to know using the AD mouth sampling of MCU
The problem of other key-press status.
The utility model is realized in this way the utility model provides a kind of detection module, comprising:
MCU；
Anode connects the first diode of the I/O port of the MCU；
One end connects power supply, and the other end is connected to first on the connecting line between the first diode and the MCU
Resistance；
The second diode that cathode is connected with the cathode of first diode；
The earthing switch being connected on the connecting line between first diode cathode and the second diode cathode.
Further, the detection module further include:
One end connects on the connecting line between the first resistor and the anode of first diode, described in other end connection
The second resistance of the I/O port of MCU.
Further, the detection module further include:
One end is connected on the connecting line between the second resistance and the MCU, the capacitor of other end ground connection.
Further, the detection module further include:
One end is connected on the connecting line between the first diode and the MCU, the capacitor of other end ground connection.
The utility model also provides a kind of self-locking device, including above-mentioned detection module and self-locking module, the detection mould
The anode of second diode of block is connect with the self-locking module.
Further, the voltage output end of the self-locking module is connected with low pressure difference linear voltage regulator.
The utility model also provides a kind of cook's machine, including above-mentioned self-locking device.
The utility model embodiment is by being arranged the first diode and the second diode that cathode is connected with cathode, isolation
Connection between MCU and high pressure allows MCU directly to use the state of I/O port (digital mouth) key range, to reduce wanting for MCU
It asks, thereby reduces the stand-by power consumption of system, reduce cost.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of self-locking device provided by the utility model；
Fig. 2 is the circuit connection diagram of MCU in self-locking device provided by the embodiment of the utility model；
Fig. 3 is the circuit connection diagram of self-locking device mesolow difference linear constant voltage regulator provided by the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The first diode and the second diode that the utility model embodiment setting cathode is connected with cathode, have been isolated MCU
Connection between high pressure allows MCU directly to use the state of I/O port (digital mouth) key range, so that the requirement of MCU is reduced,
The stand-by power consumption for thereby reducing system, reduces cost.
Embodiment one
As shown in Figure 1, detection module provided by the embodiment of the utility model includes MCU, first diode D1, first resistor
R1, the second diode D2 and earthing switch S, wherein (ON/OFF connects the I/O port of anode (pole A) the connection MCU of first diode D1
Mouthful), the cathode (pole K) of first diode D1 connects the cathode (pole K) of the second diode D2；One end of first resistor R1 connects electricity
Source 3.3V, the other end are connected on the connecting line of MCU and first diode D1；One end of earthing switch S is connected to the one or two pole
On the connecting line of pipe D1 cathode and the second diode D2 cathode, the other end ground connection.Earthing switch S can be touch-switch.
As shown in Fig. 2, MCU includes ON/OFF interface, and POWER_ON interface and power interface (3.3V), the ON/OFF of MCU
After interface detects " ON/OFF=0 ", MCU is enabled " POWER_ON=1 ", and appliance control system is according to the instruction " POWER_ON=
The conducting of 1 " control switch pipe works normally that is, so that household electrical appliances power on.The power interface of MCU is MCU power supply, guarantees the normal work of MCU
Make.
Specifically, after pressing earthing switch S key, 3.3V, R1, D1, S are connected to GND, the ON/OFF interface of MCU
" ON/OFF=0 " ground connection, i.e., after MCU detects " ON/OFF=0 ", enable " POWER_ON=1 ", control household electrical appliances by the instruction
The switching tube of control system is connected, and realizes that household electrical appliances power supply is self-locking.
The first diode D1 and the second diode D2 that the utility model embodiment is connected by the way that cathode is arranged with cathode, every
From the connection between MCU and high pressure, MCU is allow directly to use the state of I/O port key range, is not required to sample by the AD of MCU
It is detected, to reduce the requirement of MCU, thereby reduces the stand-by power consumption of system, reduce cost.
Embodiment two
As shown in Figure 1, on the basis of example 1, detection module provided by the embodiment of the utility model further includes second
Resistance R2, one end of second resistance R2 is connected on the connecting line of first resistor R1 and first diode D1 anode, the other end connects
Meet MCU.First resistor R1 connects with second resistance R2, can size of current in limiting circuit, for protecting the I/O port of MCU,
Prevent the excessive damage MCU of electric current in circuit.
Detection module provided by the utility model is not limited only to first resistor R1 and second resistance R2, can be according to the actual situation
The resistance for connecting different number, plays circuit metering function.
Embodiment three
As shown in Figure 1, on the basis of example 2, detection module provided by the embodiment of the utility model further includes capacitor
C1, one end of capacitor C1 is connected on the connecting line of second resistance R2 and MCU, the other end is grounded.The effect of capacitor C1 is filtering,
Interference signal in filtering circuit prevents the interference signal in circuit from influencing MCU detection ON/OFF signal, to influence MCU's
Detect accuracy.
Example IV
As shown in Figure 1, on the basis of example 1, detection module provided by the embodiment of the utility model further includes capacitor
C1, one end of capacitor C1 are connected on the connecting line between first diode and MCU, other end ground connection.The effect of capacitor C1 is
It filters, the interference signal in filtering circuit, prevents the interference signal in circuit from influencing MCU detection ON/OFF signal, to influence
The detection accuracy of MCU.
Embodiment five
Based on above-mentioned detection module provided by the embodiment of the utility model, the utility model embodiment additionally provides one kind certainly
Locking device, the self-locking device include above-mentioned detection module 1 and self-locking module 2, one end of self-locking module 2 and the POWER- of MCU
The connection of ON interface, self-locking module 2 include first switch tube Q1 and second switch Q2, and the pole G of second switch Q2 connects
POWER-ON interface, the pole the S ground connection of second switch Q2, the pole D connect the pole G of first switch tube Q1.
The anode of the second diode D2 in detection module 1 is connected to the pole first switch tube Q1G and the pole second switch Q2D
Connecting line on, the pole D of first switch tube Q1 connects voltage output end.After earthing switch S is pressed, the pole G of first switch tube Q1
It is connected by resistance R6, the second diode D2, earthing switch S with GND, so that the G of first switch tube Q1 extremely low level, therefore the
One switching tube Q1 conducting.
After earthing switch S is pressed, MCU detects " ON/OFF=0 ", enables " POWER_ON=1 ", i.e. second switch Q2's
G extremely low level, therefore second switch Q2 is connected.So that self-locking device is opened, household electrical appliances persistently work on power.
Self-locking device provided by the utility model reduces list using the state of I/O port (digital mouth) key range of MCU
The requirement of piece machine reduces costs to reduce the stand-by power consumption of self-locking device.
Embodiment six
As shown in figure 3, the voltage output end of self-locking module is connected with low pressure difference linearity pressure stabilizing on the basis of embodiment five
Device.To guarantee that the supply voltage of MCU is stablized, the voltage output end of self-locking module 2 connects low pressure difference linear voltage regulator (LDO), from
The voltage that lock module 2 exports stablizes output 3.3V, can act on 3.3V on MCU after low pressure difference linear voltage regulator, so that
MCU works under burning voltage, increases the service life of MCU.
Embodiment seven
Based on above-mentioned self-locking device provided by the embodiment of the utility model, the utility model embodiment additionally provides a kind of kitchen
Teacher's machine, cook's machine include above-mentioned self-locking device, i.e., increase self-locking device on cook's machine, control kitchen by the self-locking device
Teacher's electromechanical source is self-locking, to reduce the stand-by power consumption of cook's machine, reduces costs.
The first diode D1 and the second diode D2 that the utility model embodiment is connected by the way that cathode is arranged with cathode, every
From the connection between MCU and high pressure, MCU is allow directly to use the state of I/O port key range, is not required to sample by the AD of MCU
It is detected, to reduce the requirement of MCU, thereby reduces the stand-by power consumption of system, reduce cost.And by being arranged first
Resistance R1 connects with second resistance R2, can the size of current in limiting circuit prevented in circuit for protecting the I/O port of MCU
The excessive damage MCU of electric current.Interference signal in capacitor C1 filtering circuit is set, prevents the interference signal in circuit from influencing MCU inspection
ON/OFF signal is surveyed, to influence the detection accuracy of MCU.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. a kind of detection module characterized by comprising
MCU；
Anode connects the first diode of the I/O port of the MCU；
One end connects power supply, and the other end is connected to the first resistor on the connecting line between the first diode and the MCU；
The second diode that cathode is connected with the cathode of first diode；
The earthing switch being connected on the connecting line between first diode cathode and the second diode cathode.
2. detection module as described in claim 1, which is characterized in that the detection module further include:
One end connects on the connecting line between the first resistor and the anode of first diode, and the other end connects the MCU's
The second resistance of I/O port.
3. detection module as claimed in claim 2, which is characterized in that the detection module further include:
One end is connected on the connecting line between the second resistance and the MCU, the capacitor of other end ground connection.
4. detection module as described in claim 1, which is characterized in that the detection module further include:
One end is connected on the connecting line between the first diode and the MCU, the capacitor of other end ground connection.
5. a kind of self-locking device, which is characterized in that including detection module according to any one of claims 1-4 and self-locking mode
The anode of block, the second diode of the detection module is connect with the self-locking module.
6. self-locking device as claimed in claim 5, which is characterized in that the voltage output end of the self-locking module is connected with low pressure
Difference linear constant voltage regulator.
7. a kind of cook's machine, which is characterized in that including the described in any item self-locking devices of such as claim 5 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821295258.9U CN208547701U (en) | 2018-08-13 | 2018-08-13 | A kind of detection module, self-locking device and cook's machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821295258.9U CN208547701U (en) | 2018-08-13 | 2018-08-13 | A kind of detection module, self-locking device and cook's machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208547701U true CN208547701U (en) | 2019-02-26 |
Family
ID=65426227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821295258.9U Active CN208547701U (en) | 2018-08-13 | 2018-08-13 | A kind of detection module, self-locking device and cook's machine |
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| CN (1) | CN208547701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022056772A1 (en) * | 2020-09-17 | 2022-03-24 | 浙江吉利控股集团有限公司 | Self-locking and detection circuit and apparatus, and control method |
-
2018
- 2018-08-13 CN CN201821295258.9U patent/CN208547701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022056772A1 (en) * | 2020-09-17 | 2022-03-24 | 浙江吉利控股集团有限公司 | Self-locking and detection circuit and apparatus, and control method |
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