CN208210390U - A kind of kitchen lamp with the natural airway dysfunction of detection - Google Patents
A kind of kitchen lamp with the natural airway dysfunction of detection Download PDFInfo
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- CN208210390U CN208210390U CN201820575267.7U CN201820575267U CN208210390U CN 208210390 U CN208210390 U CN 208210390U CN 201820575267 U CN201820575267 U CN 201820575267U CN 208210390 U CN208210390 U CN 208210390U
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Abstract
The utility model discloses a kind of with the kitchen lamp for detecting natural airway dysfunction, aim to solve the problem that the problem that life safety is caused there are natural gas leaking, its key points of the technical solution are that: concentration of natural gas detection circuit, the concentration of natural gas detection circuit is for detecting concentration of natural gas, to export detection signal；Single-chip microcontroller, the single-chip microcontroller and concentration of natural gas detection circuit are electrically connected, for acquiring the detection signal of concentration of natural gas detection circuit, to export control signal；Alert circuit, the alert circuit and single-chip microcontroller are electrically connected, for responding the control signal of single-chip microcontroller, to issue alerting signal.The a kind of of the utility model has the advantages of detecting to natural gas, life is avoided to injure with the kitchen lamps and lanterns for detecting natural airway dysfunction.
Description
Technical field
The utility model relates to a kind of kitchen lamps, more specifically, it relates to a kind of with the kitchen lamp for detecting natural airway dysfunction.
Background technique
With popularizing for smart home, the headlamp in many family kitchens can detect human body automatically now, then
Drive headlamp work.And natural gas is often needed to use in kitchen, while bringing us and facilitating, there is also latent for it
Risk --- natural gas leaking.
In order to timely and effectively find the leakage of natural gas, need to design detection of natural gas device on headlamp.
Utility model content
Natural airway dysfunction is detected in view of the deficienciess of the prior art, having the purpose of this utility model is to provide one kind
Kitchen lamp, there is the advantages of detecting to natural gas, life is avoided to injure.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of natural with detection
The kitchen lamp of airway dysfunction, comprising:
Concentration of natural gas detection circuit, the concentration of natural gas detection circuit is for detecting concentration of natural gas, to export inspection
Survey signal；
Single-chip microcontroller, the single-chip microcontroller and concentration of natural gas detection circuit are electrically connected, for acquiring concentration of natural gas detection
The detection signal of circuit, to export control signal；
Alert circuit, the alert circuit and single-chip microcontroller are electrically connected, for responding the control signal of single-chip microcontroller, to issue
Alerting signal；
Power circuit, the concentration of natural gas detection circuit, single-chip microcontroller and alert circuit electrically connect with power circuit
It connects, for converting alternating current to the DC voltage-stabilizing electricity used for concentration of natural gas detection circuit, single-chip microcontroller and alert circuit
Source.
By using above-mentioned technical proposal, by power circuit to concentration of natural gas detection circuit, single-chip microcontroller and prompting
Circuit is for D.C. regulated power supply, when concentration of natural gas detection circuit detects the region natural gas leaking, concentration of natural gas inspection
Slowdown monitoring circuit issues detection signal, and single-chip microcontroller handles the detection signal received, and then output control signal, is mentioned with control
The case where circuit of waking up issues alerting signal, user's natural gas is reminded to leak, avoid natural gas leaking, threaten personnel safety
Occur.
The utility model is further arranged to: the concentration of natural gas detection circuit includes detection of natural gas probe QM, electricity
R1, resistance R2 and resistance R3 are hindered, the measurement end of the detection of natural gas probe QM is grounded after being electrically connected with resistance R1, described
The GAS pin of single-chip microcontroller is electrically connected between the measurement end and resistance R1 of detection of natural gas probe QM, the detection of natural gas
Another measurement end of probe QM is electrically connected with the power supply；The one end the resistance R2 is electrically connected at power supply, the other end and natural gas
The fire end of detection probe QM is electrically connected, after another fire end and resistance R3 of the detection of natural gas probe QM is electrically connected
Ground connection.
By using above-mentioned technical proposal, when natural gas detection probe QM has detected natural gas leaking, natural gas inspection
The measurement end of probing head QM outputs signal to single-chip microcontroller, then single-chip microcontroller processing detection signal exports control letter to alert circuit
Number, control alert circuit exports alerting signal, and the circuit is simple, and stability is high.
The utility model is further arranged to: further including pyroelectric infrared sensor QC, the pyroelectric infrared sensor
The positive terminal of QC is electrically connected with the power supply, and the negative pole end ground connection of the pyroelectric infrared sensor QC, the rpyroelectric infrared passes
The signal end of sensor QC and the PIR pin of single-chip microcontroller are electrically connected；The alert circuit include triode Q1, relay KM and
Headlamp P, one end of the relay KM are electrically connected with the power supply, the other end of the relay KM and the current collection of triode Q1
Pole is electrically connected, and the emitter ground connection of the triode Q1, the base stage of the triode Q1 and the OUT pin of single-chip microcontroller electrically connect
It connects, the normally opened contact switch and headlamp P of the relay KM is electrically connected, and the headlamp P is electrically connected at alternating current.
By using above-mentioned technical proposal, when people is close to kitchen, pyroelectric infrared sensor QC outputs signal to monolithic
The output end OUT pin of machine, single-chip microcontroller exports high level, triode Q1 is connected, and then it is electric to obtain relay KM, makes relay
The normally opened contact of KM is closed, and headlamp P is illuminated, while concentration of natural gas detection circuit works, when detecting that natural gas lets out
When leakage, single-chip microcontroller controls the headlamp P flashing in alert circuit, to remind close user's natural gas leaking.
The utility model is further arranged to: the relay KM is parallel with diode D6.
By using above-mentioned technical proposal, the diode D6 of relay KM parallel connection generates relay KM after a loss of power
Induced electromotive force has circuit conducting.
The utility model is further arranged to: the single-chip microcontroller is electrically connected with for controlling the photosensitive of headlamp P work
Control circuit, the photosensitive control circuit include phototriode Q2, resistance R4 and capacitor C1, the phototriode Q2's
Collector is electrically connected with the power supply, and the emitter of the phototriode Q2 is grounded after being electrically connected with resistance R4, the capacitor
C1 is in parallel with resistance R4, and the CDS pin of the single-chip microcontroller is electrically connected between phototriode Q2 and resistance R4.
By using above-mentioned technical proposal, when during the day, phototriode Q2 conducting passes through CDS signal input pin
Single-chip microcontroller is set to receive control signal, single-chip microcontroller controls PIR pin in a dormant state, do not receive pyroelectric infrared sensor QC
Detection signal, make headlamp P during the day, be in off position；At night, phototriode Q2 is not turned on, when
When pyroelectric infrared sensor QC detects people, control headlamp P work reaches the purpose for saving electric energy.
The utility model is further arranged to: the alert circuit further includes warning circuit, and the warning circuit includes three
Pole pipe Q3, resistance R5, resistance R6 and the one end buzzer F, the resistance R5 are electrically connected with the power supply, and the resistance R5's is another
End and one end of buzzer F are electrically connected, and the other end of the buzzer F and the collector of triode Q3 are electrically connected, described
The emitter of triode Q3 is grounded, and the base stage and resistance R6 of the triode Q3 is electrically connected, the other end of the resistance R6 with
The SENS pin of single-chip microcontroller is electrically connected.
By using above-mentioned technical proposal, when concentration of natural gas detection circuit has detected natural gas leaking, single-chip microcontroller
SENS output pin export high level, make triode Q3 be connected, and then make buzzer F work alarm, make in daytime illumination lamp P
When not working, warning reminding is carried out by buzzer F.
The utility model is further arranged to: the single-chip microcontroller is electrically connected with delay circuit, and the delay circuit includes
Diode D5, triode Q4, resistance R8, resistance R9, resistance R10 and resistance R11, the diode D5, resistance R10 and electricity
It is grounded after resistance R11 series connection, the anode of the diode D5 is electrically connected at power supply, and the resistance R9 is electrically connected at resistance R10
Between resistance R11, the other end of the resistance R9 is grounded after being electrically connected with capacitor C10, the base stage electricity of the triode Q4
Property be connected between resistance R9 and capacitor C10, the collector of the triode Q4 and resistance R8 are electrically connected, the resistance R8's
The other end is electrically connected with the power supply, and the emitter ground connection of the triode Q4, the TS pin of the single-chip microcontroller is electrically connected at electricity
It hinders between R8 and triode Q4.
By using above-mentioned technical proposal, when energization, charge to the capacitor C10 in delay circuit, when capacitor C10 fills
Electricity complete when, triode Q4 conducting, due to diode D5 input be alternating current, make delay circuit timing input signal, when
Do not have user close to when, by single-chip microcontroller timing controlled concentration of natural gas detection circuit carry out detection of natural gas, reach saving electricity
The purpose of energy.
The utility model is further arranged to: the power circuit includes rectification circuit and voltage regulator circuit；The rectified current
Road includes resistance R12, resistance R13, capacitor C4 and bridge rectifier, and the one end the resistance R12 and firewire are electrically connected, institute
The other end and resistance R13 for stating resistance R12 access bridge rectifier after being electrically connected, and the capacitor C4 is in parallel with resistance R13；
The voltage regulator circuit includes the input terminal electricity of voltage-stablizer LDO, capacitor C6, capacitor C7 and filter capacitor C8, the voltage-stablizer LDO
Property be connected to bridge rectifier, the ground terminal ground connection of the voltage-stablizer LDO, the output end and capacitor C8 of the voltage-stablizer LDO
One end is electrically connected, and the other end ground connection of the capacitor C8, the one end the capacitor C7 is electrically connected at bridge rectifier, described
The other end of capacitor C7 is grounded, and the filter capacitor C6 is in parallel with capacitor C7.
By using above-mentioned technical proposal, direct current is converted alternating current to by rectification circuit, then pass through voltage regulator circuit
Stable DC source is provided to single-chip microcontroller, concentration of natural gas detection circuit.
In conclusion the utility model has the following beneficial effects:
First, power circuit to concentration of natural gas detection circuit, single-chip microcontroller and alert circuit for D.C. regulated power supply, lead to
It crosses concentration of natural gas detection circuit and detects whether the region concentration of natural gas is exceeded, then concentration of natural gas detection circuit issues
Signal is detected, single-chip microcontroller handles detection signal, then output control signal, reminds letter to control alert circuit sending
Number, remind the case where leaking, avoiding natural gas leaking, the threaten personnel safety generation of people's natural gas;
Second, by pyroelectric infrared sensor QC, when user is close to kitchen, headlamp P work, while natural gas is dense
Detection circuit work is spent, when detecting natural gas leaking, it is close that single-chip microcontroller controls the headlamp P flashing prompting in alert circuit
User it is dangerous；
Third, by photosensitive control circuit, when during the day, making single-chip microcontroller control PIR pin in a dormant state, in turn
Headlamp is set not work；At night, phototriode Q2 is not turned on, when pyroelectric infrared sensor QC detects people,
Headlamp P work is controlled, the purpose for saving electric energy is reached.
Detailed description of the invention
Fig. 1 is the functional block diagram of detection of natural gas in the present embodiment；
Fig. 2 is single-chip microcontroller and concentration of natural gas detection circuit, photosensitive control circuit and warning circuit electricity in the present embodiment
Property connection circuit diagram；
Fig. 3 is the circuit diagram of delay circuit in the present embodiment；
Fig. 4 is the circuit diagram of alert circuit and power circuit in the present embodiment.
In figure: 1, concentration of natural gas detection circuit；2, single-chip microcontroller；3, alert circuit；4, power circuit；41, rectification circuit；
42, voltage regulator circuit；5, photosensitive control circuit；6, warning circuit；7, delay circuit；8, bridge rectifier.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
A kind of kitchen lamp with the natural airway dysfunction of detection, as shown in Figure 1, including for detecting concentration of natural gas, with output
It detects the concentration of natural gas detection circuit 1 of signal, be electrically connected with concentration of natural gas detection circuit 1, it is dense for acquiring natural gas
The detection signal of detection circuit 1 is spent, to export the single-chip microcontroller 2 of control signal, be electrically connected with single-chip microcontroller 2, for responding monolithic
The control signal of machine 2 is detected to issue the alert circuit 3 of alerting signal and for converting alternating current to for concentration of natural gas
The power circuit 4 for the D.C. regulated power supply that circuit 1, single-chip microcontroller 2 and alert circuit 3 use.The type of single-chip microcontroller 2 in the present embodiment
Number be AS092.
As shown in Fig. 2, concentration of natural gas detection circuit 1 includes detection of natural gas probe QM, resistance R1, resistance R2 and electricity
R3 is hindered, detection of natural gas probe QM is gas sensory, model QM-N5.The measurement end and resistance of detection of natural gas probe QM
R1 be electrically connected after be grounded, the GAS pin of single-chip microcontroller 2 be electrically connected at detection of natural gas probe QM measurement end and resistance R1 it
Between, another measurement end of detection of natural gas probe QM is electrically connected with the power supply；The one end resistance R2 is electrically connected at power supply, the other end
It is electrically connected with the fire end of detection of natural gas probe QM, another fire end of detection of natural gas probe QM electrically connects with resistance R3
It is grounded after connecing.By the measurement end output detection signal of detection of natural gas probe QM to single-chip microcontroller 2,2 processing detection of single-chip microcontroller is believed
Number, control signal then is exported to alert circuit 3, control alert circuit 3 exports alerting signal.
As shown in Figure 2 and Figure 4, single-chip microcontroller 2 is electrically connected with pyroelectric infrared sensor QC, the pyroelectricity in the present embodiment
The model AH510 of infrared sensor.The positive terminal of pyroelectric infrared sensor QC is electrically connected with the power supply, and rpyroelectric infrared passes
The negative pole end of sensor QC is grounded, and the signal end of pyroelectric infrared sensor QC and the PIR pin of single-chip microcontroller 2 are electrically connected；It reminds
Circuit 3 includes triode Q1, relay KM and headlamp P, and one end of relay KM is electrically connected with the power supply, relay KM's
The collector of the other end and triode Q1 are electrically connected, and relay KM is parallel with diode D6；The emitter of triode Q1 is grounded,
The base stage of triode Q1 and the OUT pin of single-chip microcontroller 2 are electrically connected, and the normally opened contact switch and headlamp P of relay KM is electrical
Connection, headlamp P are electrically connected at alternating current.When user is close to kitchen, pyroelectric infrared sensor QC outputs signal to single-chip microcontroller
2, the output end OUT of single-chip microcontroller 2 exports high level, triode Q1 is connected, and then it is electric to obtain relay KM, makes relay KM's
Normally opened contact closure, headlamp P work；Concentration of natural gas detection circuit 1 works simultaneously, single when detecting natural gas leaking
Piece machine 2 controls the headlamp P flashing in alert circuit 3 and reminds close user dangerous.
As shown in Fig. 2, single-chip microcontroller 2 is electrically connected with the photosensitive control circuit 5 for controlling headlamp P work, photosensitive control
Circuit 5 processed includes phototriode Q2, resistance R4 and capacitor C1, and the collector of phototriode Q2 is electrically connected with the power supply,
The emitter of phototriode Q2 is grounded after being electrically connected with resistance R4, and capacitor C1 is in parallel with resistance R4, and the CDS of single-chip microcontroller 2 draws
Foot is electrically connected between phototriode Q2 and resistance R4.When during the day, phototriode Q2 conducting passes through CDS signal
Input pin makes single-chip microcontroller 2 receive control signal, and single-chip microcontroller 2 controls PIR pin in a dormant state, makes headlamp P white
It when, be in off position；At night, phototriode Q2 is not turned on, when pyroelectric infrared sensor QC is detected
When user, control headlamp P work reaches the purpose for saving electric energy.
As shown in Figure 2 and Figure 4, alert circuit 3 further includes warning circuit 6, warning circuit 6 include triode Q3, resistance R5,
The one end resistance R6 and buzzer F, resistance R5 is electrically connected with the power supply, and one end of the other end buzzer F of resistance R5 electrically connects
It connects, the other end of buzzer F and the collector of triode Q3 are electrically connected, the emitter ground connection of triode Q3, triode Q3's
Base stage and resistance R6 are electrically connected, and the other end of resistance R6 and the SENS pin of single-chip microcontroller 2 are electrically connected.When concentration of natural gas is examined
When slowdown monitoring circuit 1 has detected natural gas leaking, the SENS output pin of single-chip microcontroller 2 exports high level, and triode Q3 is connected, into
And make buzzer F work alarm.
As shown in Figures 2 and 3, single-chip microcontroller 2 is electrically connected with delay circuit 7, and delay circuit 7 includes diode D5, three poles
It is grounded after pipe Q4, resistance R8, resistance R9, resistance R10 and resistance R11, diode D5, resistance R10 and resistance R11 series connection,
The anode of diode D5 is electrically connected at power supply, and resistance R9 is electrically connected between resistance R10 and resistance R11, and resistance R9's is another
One end is grounded after being electrically connected with capacitor C10, and the base stage of triode Q4 is electrically connected between resistance R9 and capacitor C10, three poles
The collector and resistance R8 of pipe Q4 is electrically connected, and the other end of resistance R8 is electrically connected with the power supply, and the emitter of triode Q4 connects
The TS pin on ground, single-chip microcontroller 2 is electrically connected between resistance R8 and triode Q4.When energization, to the capacitor in delay circuit 7
C10 charges, and when capacitor C10 charging complete, triode Q4 conducting makes 7 timing input signal of delay circuit, passes through monolithic
2 timing controlled concentration of natural gas detection circuit 1 of machine carries out detection of natural gas, achievees the purpose that save electric energy.
As shown in figure 4, power circuit 4 includes rectification circuit 41 and voltage regulator circuit 42；Rectification circuit 41 include resistance R12,
Resistance R13, capacitor C4 and bridge rectifier 8, the one end resistance R12 and firewire are electrically connected, the other end and electricity of resistance R12
It hinders after R13 is electrically connected and accesses bridge rectifier 8, the capacitor C4 is in parallel with resistance R13；Voltage regulator circuit 42 includes voltage-stablizer
LDO, capacitor C6, capacitor C7 and filter capacitor C8, the input terminal of the voltage-stablizer LDO are electrically connected at bridge rectifier 8,
The ground terminal of voltage-stablizer LDO is grounded, and the output end of voltage-stablizer LDO and the one end capacitor C8 are electrically connected, another termination of capacitor C8
Ground, the one end capacitor C7 are electrically connected at bridge rectifier 8, and the other end ground connection of capacitor C7, filter capacitor C6 and capacitor C7 are simultaneously
Connection.Direct current is converted alternating current to by rectification circuit 41, then is examined by voltage regulator circuit 42 to single-chip microcontroller 2, concentration of natural gas
Slowdown monitoring circuit 1 provides stable DC source, the model AS7125 of the voltage-stablizer LDO in this implementation.
The course of work: detecting whether natural gas leaks by concentration of natural gas detection circuit 1, single to issue detection signal
Piece machine 2 handles the detection signal received, then output control signal, issues alerting signal to control alert circuit 3,
People's natural gas is reminded to leak.And there is both of which, that is, it works by day and evening operating mode, when being in daytime,
By photosensitive control circuit 5, so that single-chip microcontroller 2 is controlled headlamp and do not work, but natural gas can be detected immediately；When at night
When, sense that people's rear lighting lamp is bright, while detecting to the concentration of natural gas；And it is not being sensed by delay circuit 7
When people, the detection of natural gas can be periodically carried out.When the detectable concentration of natural gas is more than the concentration value of setting, headlamp can not stop
Flashing, while buzzer F can ceaselessly pipe, and remind user with this.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of with the kitchen lamp for detecting natural airway dysfunction characterized by comprising
Concentration of natural gas detection circuit (1), the concentration of natural gas detection circuit (1) is for detecting concentration of natural gas, with output
Detect signal；
Single-chip microcontroller (2), the single-chip microcontroller (2) and concentration of natural gas detection circuit (1) are electrically connected, for acquiring concentration of natural gas
The detection signal of detection circuit (1), to export control signal；
Alert circuit (3), the alert circuit (3) and single-chip microcontroller (2) are electrically connected, and the control for responding single-chip microcontroller (2) is believed
Number, to issue alerting signal；
Power circuit (4), the concentration of natural gas detection circuit (1), single-chip microcontroller (2) and alert circuit (3) are electric with power supply
Road (4) is electrically connected, for converting alternating current to for concentration of natural gas detection circuit (1), single-chip microcontroller (2) and alert circuit
(3) D.C. regulated power supply used.
2. according to claim 1 a kind of with the kitchen lamp for detecting natural airway dysfunction, it is characterised in that: the natural gas is dense
Degree detection circuit (1) includes detection of natural gas probe QM, resistance R1, resistance R2 and resistance R3, the detection of natural gas probe
The measurement end of QM is grounded after being electrically connected with resistance R1, and the GAS pin of the single-chip microcontroller (2) is electrically connected at detection of natural gas spy
Between the measurement end and resistance R1 of head QM, another measurement end of the detection of natural gas probe QM is electrically connected with the power supply；It is described
The one end resistance R2 is electrically connected at power supply, the fire end electric connection of the other end and detection of natural gas probe QM, the natural gas
Another fire end of detection probe QM is grounded after being electrically connected with resistance R3.
3. according to claim 2 a kind of with the kitchen lamp for detecting natural airway dysfunction, it is characterised in that: further include pyroelectricity
Infrared sensor QC, the positive terminal of the pyroelectric infrared sensor QC are electrically connected with the power supply, the rpyroelectric infrared sensing
The negative pole end of device QC is grounded, and the signal end of the pyroelectric infrared sensor QC and the PIR pin of single-chip microcontroller (2) are electrically connected；
The alert circuit (3) includes one end and the power supply electrical property of triode Q1, relay KM and headlamp P, the relay KM
Connection, the other end of the relay KM and the collector of triode Q1 are electrically connected, the emitter ground connection of the triode Q1,
The base stage of the triode Q1 and the OUT pin of single-chip microcontroller (2) are electrically connected, the normally opened contact switch and photograph of the relay KM
Bright lamp P is electrically connected, and the headlamp P is electrically connected at alternating current.
4. according to claim 3 a kind of with the kitchen lamp for detecting natural airway dysfunction, it is characterised in that: the relay KM
It is parallel with diode D6.
5. according to claim 3 a kind of with the kitchen lamp for detecting natural airway dysfunction, it is characterised in that: the single-chip microcontroller
(2) it is electrically connected with the photosensitive control circuit (5) for controlling headlamp P work, the photosensitive control circuit (5) includes photosensitive
Triode Q2, resistance R4 and capacitor C1, the collector of the phototriode Q2 are electrically connected with the power supply, photosensitive three pole
The emitter of pipe Q2 is grounded after being electrically connected with resistance R4, and the capacitor C1 is in parallel with resistance R4, the CDS of the single-chip microcontroller (2)
Pin is electrically connected between phototriode Q2 and resistance R4.
6. according to claim 1 a kind of with the kitchen lamp for detecting natural airway dysfunction, it is characterised in that: the alert circuit
It (3) further include warning circuit (6), the warning circuit (6) includes triode Q3, resistance R5, resistance R6 and buzzer F, institute
It states the one end resistance R5 to be electrically connected with the power supply, the other end of the resistance R5 and one end of buzzer F are electrically connected, the buzzing
The other end of device F and the collector of triode Q3 are electrically connected, the emitter ground connection of the triode Q3, the triode Q3's
Base stage and resistance R6 are electrically connected, and the other end of the resistance R6 and the SENS pin of single-chip microcontroller (2) are electrically connected.
7. according to claim 1 a kind of with the kitchen lamp for detecting natural airway dysfunction, it is characterised in that: the single-chip microcontroller
(2) be electrically connected with delay circuit (7), the delay circuit (7) include diode D5, triode Q4, resistance R8, resistance R9,
It is grounded after resistance R10 and resistance R11, the diode D5, resistance R10 and resistance R11 series connection, the diode D5 is just
Pole is electrically connected at power supply, and the resistance R9 is electrically connected between resistance R10 and resistance R11, the other end of the resistance R9
It is grounded after being electrically connected with capacitor C10, the base stage of the triode Q4 is electrically connected between resistance R9 and capacitor C10, described
The collector and resistance R8 of triode Q4 is electrically connected, and the other end of the resistance R8 is electrically connected with the power supply, the triode
The emitter of Q4 is grounded, and the TS pin of the single-chip microcontroller (2) is electrically connected between resistance R8 and triode Q4.
8. according to claim 1 a kind of with the kitchen lamp for detecting natural airway dysfunction, it is characterised in that: the power circuit
It (4) include rectification circuit (41) and voltage regulator circuit (42)；The rectification circuit (41) includes resistance R12, resistance R13, capacitor C4
And bridge rectifier (8), the one end the resistance R12 and firewire are electrically connected, the other end and resistance of the resistance R12
R13 accesses bridge rectifier (8) after being electrically connected, and the capacitor C4 is in parallel with resistance R13；The voltage regulator circuit (42) includes
Voltage-stablizer LDO, capacitor C6, capacitor C7 and filter capacitor C8, the input terminal of the voltage-stablizer LDO are electrically connected at bridge rectifier
Circuit (8), the ground terminal ground connection of the voltage-stablizer LDO, the output end of the voltage-stablizer LDO and the one end capacitor C8 are electrically connected,
The other end of the capacitor C8 is grounded, and the one end the capacitor C7 is electrically connected at bridge rectifier (8), and the capacitor C7's is another
One end ground connection, the filter capacitor C6 are in parallel with capacitor C7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820575267.7U CN208210390U (en) | 2018-04-21 | 2018-04-21 | A kind of kitchen lamp with the natural airway dysfunction of detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820575267.7U CN208210390U (en) | 2018-04-21 | 2018-04-21 | A kind of kitchen lamp with the natural airway dysfunction of detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208210390U true CN208210390U (en) | 2018-12-07 |
Family
ID=64524869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820575267.7U Active CN208210390U (en) | 2018-04-21 | 2018-04-21 | A kind of kitchen lamp with the natural airway dysfunction of detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208210390U (en) |
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2018
- 2018-04-21 CN CN201820575267.7U patent/CN208210390U/en active Active
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