CN104065364B - Intelligent keyboard switch and kitchen ventilator with keyboard switch - Google Patents
Intelligent keyboard switch and kitchen ventilator with keyboard switch Download PDFInfo
- Publication number
- CN104065364B CN104065364B CN201410293625.1A CN201410293625A CN104065364B CN 104065364 B CN104065364 B CN 104065364B CN 201410293625 A CN201410293625 A CN 201410293625A CN 104065364 B CN104065364 B CN 104065364B
- Authority
- CN
- China
- Prior art keywords
- resistance
- intelligent
- diode
- switch
- power supply
- 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.)
- Active
Links
Landscapes
- Electronic Switches (AREA)
Abstract
The invention provides an intelligent keyboard switch and a kitchen ventilator with the keyboard switch. The intelligent keyboard switch comprises a body and an intelligent switch module arranged on the body. The intelligent switch module comprises a rectification circuit, an electronic switch, an on-state power supply generation circuit, a trigger circuit, a micro controller, an off-state power supply generation circuit and a power supply filter circuit. The rectification circuit converts the alternating current of the electronic switch into pulsating direct current. The electronic switch controls the turn-on and turn-off of the pulsating direct current. According to the intelligent keyboard switch provided by the invention, compared with the prior art, the intelligent keyboard switch has the advantages that firstly through setting the intelligent switch module arranged on the keyboard switch, the keyboard switch is intelligent, and the scope of application of the keyboard switch is enlarged; secondly, the intelligent switch module has the advantages of simple structure and small size, and the action process of the intelligent switch module is quick, sensitive, safe and reliable.
Description
Technical field
The present invention relates to a kind of intelligent key switch, the invention further relates to a kind of range hood using the key switch.
Background technology
Also calling and interlocking is switched key switch, i.e., several buttons are in line as key sample.Every time can only be another by the next one
Individual meeting is upspring.There is a closing button, press and can not pin, but other buttons can be made to upspring entirely.Due to the letter of key switch structure
Single, easy to operate, the characteristic such as safety durable is able to extensively be met the tendency of, such as the household electrical appliance such as electric fan, range hood, such as oil suction
When key switch on cigarette machine controls blower fan system, only there is the functions such as high wind, apoplexy and weak wind, need when closing blower fan system
Pressing closing button also has, at present time switch is added in range hood key switch, has reached lampblack absorber timing
Function, but time switch mostly is mechanical timing switch, has that complex structure, volume are big, service life is short, reliability not
High, bad timing is true and the inflexible shortcoming of timing adjustment, and its single function, it is impossible to realize the intelligence control of range hood
The intermittent function of opening and closing of system, such as lampblack absorber.
The content of the invention
The technical problem to be solved is the deficiency for overcoming above-mentioned prior art, there is provided a kind of with intelligent mould
The key switch of block.
The technical problem to be solved is the deficiency for overcoming above-mentioned prior art, there is provided one kind can realize intelligence
The range hood that can be controlled.
The main technical schemes that adopt of intelligent key switch provided according to the present invention for：Including body and being located at described
Intelligent switch module on body, the intelligent switch module include rectification circuit, electrical switch, on-state power supply generative circuit, touch
Power Generation Road, microcontroller, off-state power supply generative circuit and electric source filter circuit；The rectification circuit is by the friendship of the electrical switch
Stream electricity is converted into Rectified alternating current；The electrical switch controls the turn-on and turn-off of Rectified alternating current；At the electrical switch
When conducting state, the on-state power supply generative circuit alternating current zero passage section for needed for the microcontroller offer work
Power supply；The triggers circuit controls the break-make of the electrical switch, and when the electrical switch is in the conduction state, triggering is described
On-state power supply generative circuit provides power supply for the microcontroller；The break-make of electrical switch described in the microprocessor controls；When
When electrical switch is off state, the Rectified alternating current that the rectification circuit is produced by the off-state power supply generative circuit is
The electric source filter circuit charges.
The intelligent key switch that the present invention is provided is also using following attached technical scheme：
The electrical switch is one-way SCR Q3.
The microcontroller includes the main control chip U2 being connected in parallel and electric capacity C6, electricity described in the microprocessor controls
Son is switched on-off, and the electric capacity C6 provides decoupling for the main control chip U2.
The electric source filter circuit includes electric capacity C3 and Zener diode ZNER2, and the positive pole of the electric capacity C3 is neat with described
The negative pole of diode ZNER2 received links together and meets the main control chip U2, negative pole and two pole of the Zener of the electric capacity C3
The positive pole of pipe ZNER2 links together and meets the main control chip U2.
The off-state power supply generative circuit includes resistance R8, resistance R9 and resistance R10；The resistance R8, resistance R9 and electricity
Hinder the negative pole of the termination Zener diode ZNER2 after R10 is sequentially connected in series.
The triggers circuit includes resistance R6, resistance R7, electric capacity C7, one-way SCR Q2；One end of the resistance R7 with
One end connection of the resistance R6 is followed by the control pole of the one-way SCR Q2, and another termination of the resistance R6 is described unidirectional
The negative electrode of controllable silicon Q2, the electric capacity C7 are in parallel with the resistance R6, and the resistance R8, resistance R9 and resistance R10 are sequentially connected in series
The anode of another termination one-way SCR Q2 afterwards.
The on-state power supply generative circuit includes Zener diode ZNER1, resistance R11, resistance R12, resistance R13, electric capacity
C4 and diode D12；The negative pole of the Zener diode ZNER1 is connected with the positive pole of the electric capacity C4 and is followed by the diode
The positive pole of D12, the negative pole of the Zener diode ZNER1 connect the negative electrode of the one-way SCR Q2, one end of the resistance R11
The positive pole of the Zener diode ZNER1, the other end of the resistance R11 and institute are followed by with the connection of one end of the resistance R12
One end connection for stating resistance R13 is followed by the control pole of the one-way SCR Q3, the other end and the resistance of the resistance R12
The other end connection of R13 is followed by the one-way SCR Q3 negative electrodes, and another termination electric capacity C4's of the resistance R12 is negative
Pole.
The rectification circuit includes diode D13, diode D14, diode D15, diode D16；The diode D13
Negative pole and the diode D14 negative pole link together after respectively with the anode of the one-way SCR Q2 and described unidirectional
The anode of controllable silicon Q3 connects, and the positive pole of the diode D15 and the diode D16 positive poles link together and connect described unidirectional
The negative electrode of controllable silicon Q3, the positive pole of the diode D13 are connected with the negative pole of the diode D15, and the diode D14 is just
Pole is connected with the negative pole of the diode D16.
The body includes prime time key, weak shelves key, Based Intelligent Control key, illumination key and reset key, the intelligent switch module
It is bonded with the Based Intelligent Control.
The main control chip U1 is the single-chip microcomputer of the common I/O port with analog conversion function.
The main technical schemes that adopt of range hood provided according to the present invention for：Including casing, it is located in the casing
Fan assembly and control assembly, the casing is provided with smoke inlet and exhaust opening, and the control assembly includes key switch, institute
State that key switch includes body and sets intelligent switch module on the body, the intelligent switch module includes rectified current
Road, electrical switch, on-state power supply generative circuit, triggers circuit, microcontroller, off-state power supply generative circuit and power filter electricity
Road；The AC conversion of the electrical switch is Rectified alternating current by the rectification circuit；The electrical switch control pulsation is straight
Flow the short-circuit and breaking of electricity；When the electrical switch is in short-circuit condition, the on-state power supply generative circuit is in alternating current
Power supply of the zero passage section for needed for the microcontroller offer work；The triggers circuit controls the break-make of the electrical switch, when
When the electrical switch is in channel status, trigger the on-state power supply generative circuit and power supply is provided for the microcontroller；Institute
State the break-make of electrical switch described in microprocessor controls；When electrical switch 2 is in off state, what the rectification circuit was produced
Rectified alternating current is charged for the electric source filter circuit by the off-state power supply generative circuit.
The intelligent key switch provided according to the present invention is had the advantage that compared with prior art：First, the present invention is logical
The setting intelligent switch module on key switch is crossed, the key switch for making is intelligent, expands its scope of application；Secondly, intelligence
Switch module simple structure, small volume, its course of action are quick sensitive, safe and reliable.
The range hood provided according to the present invention is had the advantage that compared with prior art：The present invention is in control assembly
Intelligent key switch is set, the keying of fan assembly is controlled by intelligent switch module so that the range hood energy in the present invention
Enough realize delay switching-off and Intelligent fixed time ventilation function, with existing lampblack absorber by mechanical control device come delay switching-off compared with,
Present configuration is simple, small volume, reliability are high, long service life.
Description of the drawings
Fig. 1 is the schematic block circuit diagram of intelligent switch module in the present invention.
Fig. 2 is the circuit theory diagrams of intelligent switch module in the present invention.
Specific embodiment
Referring to Fig. 1 and Fig. 2, according to the intelligent key switch embodiment that the present invention is provided, including body and it is located at described
Intelligent switch module on body, the intelligent switch module include rectification circuit 1, electrical switch 2, on-state power supply generative circuit 3,
Triggers circuit 4, microcontroller 5, off-state power supply generative circuit 6 and electric source filter circuit 7；The rectification circuit 1 is by the electronics
The AC conversion of switch 2 is Rectified alternating current；The electrical switch 2 controls the turn-on and turn-off of Rectified alternating current；When described
When electrical switch 2 is in the conduction state, the on-state power supply generative circuit 3 is the microcontroller 5 in the zero passage section of alternating current
Power supply needed for work is provided；The triggers circuit 4 controls the break-make of the electrical switch 2, leads when the electrical switch 2 is in
During logical state, it is that the microcontroller 5 provides power supply to trigger the on-state power supply generative circuit 3；The microcontroller 5 controls institute
State the break-make of electrical switch 2；When electrical switch 2 is off state, the Rectified alternating current that the rectification circuit 1 is produced passes through
The off-state power supply generative circuit 6 charges for the electric source filter circuit 7.First, the present invention is by arranging on key switch
Intelligent switch module, the key switch for making are intelligent, expand its scope of application；Next, intelligent switch modular structure is simple, body
Less, its course of action is quick sensitive, safe and reliable.
Referring to Fig. 1 and Fig. 2, according to the intelligent key switch embodiment that the present invention is provided, the electrical switch 2 is unidirectionally may be used
Control silicon Q3.The triggering pin of one-way SCR Q3 is connected to on-state power supply generative circuit 3, and such on-state power supply generative circuit 3 is generated
The triggering pin of supply voltage negative feedback to one-way SCR Q3.So as to ensure that on-state power supply generative circuit 3 generates power supply electricity
The stability of pressure, the supply voltage for for example generating are not affected by external voltage landing.
In addition one-way SCR Q3 works on off state, and its work generation heat is minimum, and power capacity can lead to
Cross the device model increase of change one-way SCR Q3 or reduce；When one-way SCR Q3 is turned off, passage current must be reduced to 0, from
And the sensing peak voltage that motor inductances are produced is avoided, improve circuit functional reliability.
Referring to Fig. 1 and Fig. 2, according to the intelligent key switch embodiment that the present invention is provided, the microcontroller 5 includes parallel connection
Main control chip U2 together and electric capacity C6, the microcontroller 5 control the break-make of the electrical switch 2, and the electric capacity C6 is
The main control chip U2 provides decoupling.The main control chip U2 is the single-chip microcomputer with the common I/O port of analog conversion function.For example
PIC10F204, SN8P2501B etc..
Referring to Fig. 1 and Fig. 2, according to the intelligent key switch embodiment that the present invention is provided, the electric source filter circuit 7 includes
Electric capacity C3 and Zener diode ZNER2, the positive pole of the electric capacity C3 are linked together with the negative pole of the Zener diode ZNER2
The main control chip U2 is met, the negative pole of the electric capacity C3 is linked together with the positive pole of the Zener diode ZNER2 and connects described
Main control chip U2.The Rectified alternating current that resistance R8, resistance R9, resistance R10 in triggers circuit 4 send can be smoothed to by electric capacity C3
Unidirectional current, Zener diode ZNER2 ensure that smooth DC voltage is less than its setting voltage value, such as：5.1V, it is to avoid damage
Bad microcontroller 5.Above-mentioned 4 devices are all small size device, contribute to reducing finished product board size.
Referring to Fig. 1 and Fig. 2, according to the intelligent key switch embodiment that the present invention is provided, the off-state power supply generative circuit 6
Including resistance R8, resistance R9 and resistance R10；A termination after the resistance R8, resistance R9 and resistance R10 are sequentially connected in series is described neat
Receive the negative pole of diode ZNER2.The crest voltage of point list more than 300V is needed when resistance R8, resistance R9, resistance R10 work, is adopted
3 resistant series are used, prevents resistance not to be broken down by high-voltage, improve circuit functional reliability, while resistance is with low cost, reduce manufacture
Cost.
Referring to Fig. 1 and Fig. 2, according to the intelligent key switch embodiment that the present invention is provided, the triggers circuit includes resistance
R6, resistance R7, electric capacity C7, one-way SCR Q2；One end of the resistance R7 be connected with one end of the resistance R6 be followed by it is described
The control pole of one-way SCR Q2, the negative electrode of another termination one-way SCR Q2 of the resistance R6, the electric capacity C7 with
The resistance R6 is in parallel, the resistance R8, resistance R9 and resistance R10 be sequentially connected in series after another termination one-way SCR Q2
Anode.Resistance R6 is trigger current limiting resistance, prevents the excessive damage one-way SCR Q2 of trigger current；Resistance R7 and electric capacity
C7 eliminates circuit for triggering disturbing pulse, can eliminate the higher hamonic wave interference that civil power is sealed in, prevent false triggering, improve device work
Make reliability, while device cost is cheap, reduces cost.
Referring to Fig. 1 and Fig. 2, according to the intelligent key switch embodiment that the present invention is provided, the on-state power supply generative circuit
Including Zener diode ZNER1, resistance R11, resistance R12, resistance R13, electric capacity C4 and diode D12；The Zener diode
The negative pole of ZNER1 is connected the positive pole for being followed by the diode D12, the Zener diode ZNER1 with the positive pole of the electric capacity C4
Negative pole connect one end connection of the negative electrode of the one-way SCR Q2, one end of the resistance R11 and the resistance R12 and be followed by institute
State the positive pole of Zener diode ZNER1, the other end of the resistance R11 is connected with one end of the resistance R13 and is followed by the list
To the control pole of controllable silicon Q3, the other end of the resistance R12 is connected with the other end of the resistance R13 and is followed by described unidirectionally may be used
Control silicon Q3 negative electrodes, the negative pole of another termination electric capacity C4 of the resistance R12.One-way SCR Q2 can be sent by electric capacity C4
Pulse voltage be smoothed to unidirectional current, and microcontroller 5 is supplied to by diode D12 Jing electric source filter circuits 7, while two poles
Pipe D12 is also prevented from 7 electric current of electric source filter circuit and pours in down a chimney triggering one-way SCR Q3, Zener diode ZNER1 and resistance R12
Composition series voltage negative-feedback circuit, the voltage that resistance R12 shares feed back to the triggering of one-way SCR Q3 by resistance R11
Foot, resistance R13 eliminate resistance for the triggering interference of one-way SCR Q3.This circuit is by power supply generative circuit and electrical switch break-make
Control triggers circuit is placed under same reference ground, it is not necessary to is arranged Phototube Coupling triggering device, is reduced device cost.
Referring to Fig. 1 and Fig. 2, according to the intelligent key switch embodiment that the present invention is provided, the rectification circuit 1 includes two poles
Pipe D13, diode D14, diode D15, diode D16；The negative pole of the negative pole of the diode D13 and the diode D14
Connect with the anode of the anode and the one-way SCR Q3 of the one-way SCR Q2 after linking together respectively, two pole
The positive pole of pipe D15 and the diode D16 positive poles link together and connect the negative electrode of the one-way SCR Q3, the diode
The positive pole of D13 is connected with the negative pole of the diode D15, and the positive pole of the diode D14 is connected with the negative pole of the diode D16
Connect.4 diodes D13, D14, D15, D16 constitute rectified current, by the AC rectification of switch into Rectified alternating current, in order to drop
Low device power consumption, using the fast recovery diode of low tube voltage drop.
According to the intelligent key switch embodiment that the present invention is provided, the body includes prime time key, weak shelves key, Based Intelligent Control
Key, illumination key and reset key, the intelligent switch module are bonded with the Based Intelligent Control.The Based Intelligent Control key quilt of key switch
The programing function in electronic switch module can be just performed after pressing, for example, can perform time-delay closing blower fan function or timing
To the function of kitchen ventilation.The Based Intelligent Control key and other all buttons of key switch does not logically conflict simultaneously, if multiple
Position key, prime time key or weak shelves key are pressed, then Based Intelligent Control key resets, and intelligent control function is released.Simultaneously because Electronic Control mould
Block and key switch contact adopt cascade, if electronic switch module is damaged, do not interfere with the use of other buttons.
According to the range hood embodiment that the present invention is provided, including casing, the fan assembly being located in the casing and control
Component processed, the casing are provided with smoke inlet and exhaust opening, and the control assembly includes key switch, wherein casing and blower fan group
Part is technology more ripe in prior art, is not repeating herein, during the key switch in the present embodiment is above-described embodiment
Described key switch.The present invention arranges intelligent key switch in control assembly, controls blower fan group by intelligent switch module
The keying of part so that the range hood in the present invention can realize the function of delay switching-off and Intelligent fixed time ventilation, with existing oil
Cigarette machine is compared come delay switching-off by mechanical control device, and present configuration is simple, small volume, reliability are high, long service life.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding these embodiments can be changed without departing from the principles and spirit of the present invention, the scope of the present invention by
Claims and its equivalent are limited.
Claims (6)
1. a kind of intelligent key switch, it is characterised in that：Including body and intelligent switch module on the body is set, it is described
Intelligent switch module includes rectification circuit, electrical switch, on-state power supply generative circuit, triggers circuit, microcontroller, off-state power supply
Generative circuit and electric source filter circuit；The AC conversion of the electrical switch is Rectified alternating current by the rectification circuit；Institute
State the turn-on and turn-off that electrical switch controls Rectified alternating current；When the electrical switch is in the conduction state, the on-state electricity
Zero passage section power supply for the microcontroller offer work needed for of the source generative circuit in alternating current；The triggers circuit controls institute
The break-make of electrical switch is stated, when the electrical switch is in the conduction state, it is described to trigger the on-state power supply generative circuit
Microcontroller provides power supply；The break-make of electrical switch described in the microprocessor controls；When electrical switch is off state,
The Rectified alternating current that the rectification circuit is produced is charged for the electric source filter circuit by the off-state power supply generative circuit；Institute
State main control chip U2 and electric capacity C6 that microcontroller includes being connected in parallel, electrical switch described in the microprocessor controls it is logical
Disconnected, the electric capacity C6 provides decoupling for the main control chip U2；The electric source filter circuit includes electric capacity C3 and Zener diode
ZNER2, the positive pole of the electric capacity C3 are linked together with the negative pole of the Zener diode ZNER2 and meet the main control chip U2,
The negative pole of the electric capacity C3 is linked together with the positive pole of the Zener diode ZNER2 and meets the main control chip U2；It is described disconnected
State power supply generative circuit includes resistance R8, resistance R9 and resistance R10；After the resistance R8, resistance R9 and resistance R10 are sequentially connected in series
A termination Zener diode ZNER2 negative pole；The triggers circuit includes resistance R6, resistance R7, electric capacity C7, unidirectionally may be used
Control silicon Q2；One end of the resistance R7 is connected the control pole for being followed by the one-way SCR Q2, institute with one end of the resistance R6
The negative electrode of another termination one-way SCR Q2 of resistance R6 is stated, the electric capacity C7 is in parallel with the resistance R6, the resistance
R8, resistance R9 and resistance R10 be sequentially connected in series after another termination one-way SCR Q2 anode.
2. intelligent key switch according to claim 1, it is characterised in that：The electrical switch is one-way SCR Q3.
3. intelligent key switch according to claim 2, it is characterised in that：The on-state power supply generative circuit includes Zener
Diode ZNER1, resistance R11, resistance R12, resistance R13, electric capacity C4 and diode D12；The Zener diode ZNER1's is negative
Pole is connected the positive pole for being followed by the diode D12 with the positive pole of the electric capacity C4, and the negative pole of the Zener diode ZNER1 meets institute
One end connection for stating the negative electrode of one-way SCR Q2, one end of the resistance R11 and the resistance R12 is followed by two pole of the Zener
The positive pole of pipe ZNER1, the other end of the resistance R11 are connected with one end of the resistance R13 and are followed by the one-way SCR Q3
Control pole, the other end of the resistance R12 is connected with the other end of the resistance R13 that to be followed by the one-way SCR Q3 cloudy
Pole, the negative pole of another termination electric capacity C4 of the resistance R12.
4. intelligent key switch according to claim 3, it is characterised in that：The rectification circuit include diode D13, two
Pole pipe D14, diode D15, diode D16；The negative pole of the negative pole of the diode D13 and the diode D14 is connected to one
Connect with the anode of the anode and the one-way SCR Q3 of the one-way SCR Q2 after rising respectively, the diode D15's
Positive pole and the diode D16 positive poles link together and connect the negative electrode of the one-way SCR Q3, the positive pole of the diode D13
It is connected with the negative pole of the diode D15, the positive pole of the diode D14 is connected with the negative pole of the diode D16.
5. the intelligent key switch according to claim 1-4 any one, it is characterised in that：The body includes the prime time
Key, weak shelves key, Based Intelligent Control key, illumination key and reset key, the intelligent switch module are bonded with the Based Intelligent Control.
6. a kind of range hood, including casing, the fan assembly being located in the casing and control assembly, the casing are provided with
Smoke inlet and exhaust opening, the control assembly include key switch, it is characterised in that：The key switch is claim 1-5
Any one of intelligent key switch described in claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410293625.1A CN104065364B (en) | 2014-06-25 | 2014-06-25 | Intelligent keyboard switch and kitchen ventilator with keyboard switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410293625.1A CN104065364B (en) | 2014-06-25 | 2014-06-25 | Intelligent keyboard switch and kitchen ventilator with keyboard switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104065364A CN104065364A (en) | 2014-09-24 |
| CN104065364B true CN104065364B (en) | 2017-05-03 |
Family
ID=51552926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410293625.1A Active CN104065364B (en) | 2014-06-25 | 2014-06-25 | Intelligent keyboard switch and kitchen ventilator with keyboard switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104065364B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098124U (en) * | 1991-07-05 | 1992-03-04 | 毋江 | Sound and light control switch |
| CN2167482Y (en) * | 1993-05-12 | 1994-06-01 | 方绍武 | Single trigger end induction type electronic switch |
| CN2766449Y (en) * | 2004-10-14 | 2006-03-22 | 赵艳军 | Two-wire electronic switch power supply module and two-wire remote control switch |
| CN201398185Y (en) * | 2009-04-28 | 2010-02-03 | 成都一三五星实业有限公司 | Light-operated switch |
| CN203464363U (en) * | 2013-08-05 | 2014-03-05 | 广东万和电气有限公司 | Extractor hood |
| CN203968085U (en) * | 2014-06-25 | 2014-11-26 | 浙江帅康电气股份有限公司 | A kind of intelligent keyboard switch and use the range hood of this keyboard switch |
-
2014
- 2014-06-25 CN CN201410293625.1A patent/CN104065364B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098124U (en) * | 1991-07-05 | 1992-03-04 | 毋江 | Sound and light control switch |
| CN2167482Y (en) * | 1993-05-12 | 1994-06-01 | 方绍武 | Single trigger end induction type electronic switch |
| CN2766449Y (en) * | 2004-10-14 | 2006-03-22 | 赵艳军 | Two-wire electronic switch power supply module and two-wire remote control switch |
| CN201398185Y (en) * | 2009-04-28 | 2010-02-03 | 成都一三五星实业有限公司 | Light-operated switch |
| CN203464363U (en) * | 2013-08-05 | 2014-03-05 | 广东万和电气有限公司 | Extractor hood |
| CN203968085U (en) * | 2014-06-25 | 2014-11-26 | 浙江帅康电气股份有限公司 | A kind of intelligent keyboard switch and use the range hood of this keyboard switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104065364A (en) | 2014-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI554034B (en) | Infrared ray on/off switch with automatic dimming capacity | |
| CN106847582B (en) | Arc extinguishing power device driving device and arc-control device | |
| CN103700542B (en) | Actuating of relay response and delay detection circuit, circuit board and there is its electric heating products | |
| CN105634457B (en) | Thyristor driver device | |
| CN105679606B (en) | A kind of wireless zero passage on-off switch and control method based on electromagnetic relay | |
| CN204652337U (en) | A kind of single fiery power taking intelligent control switch | |
| CN109769321A (en) | A kind of LED lamp circuit with Delayed extinguishing function | |
| CN107148132B (en) | Single live wire on-state power taking circuit | |
| CN2785261Y (en) | Switch circuit using several switches to control one electric appliance | |
| CN104065364B (en) | Intelligent keyboard switch and kitchen ventilator with keyboard switch | |
| CN103075810B (en) | Power control device and water heater | |
| CN105807691B (en) | A kind of leak through type coffee machine control circuit and integrated MCU | |
| CN105406714B (en) | A kind of DC-DC converter integrated circuit and its application circuit | |
| CN203968085U (en) | A kind of intelligent keyboard switch and use the range hood of this keyboard switch | |
| CN207975006U (en) | driving circuit | |
| CN103675672B (en) | Pressure switch state detection circuit and the electric heating products with it | |
| CN209497623U (en) | A kind of IGBT control circuit, the control circuit of heating electrical appliance, heating electrical appliance | |
| CN200994127Y (en) | Passive time delay-off lighting switch | |
| CN210579355U (en) | Single live wire control circuit of diode | |
| CN210247116U (en) | Silicon controlled control circuit of touch dimming switch | |
| CN110461061A (en) | A kind of single live wire power getting circuit controlled based on microswitch or optocoupler | |
| CN202813498U (en) | Automatic induction device for microwave ovens and microwave oven | |
| CN103780238B (en) | Has the infrared ray electric switch of automatic dimming function | |
| CN105356871B (en) | Zero-power-consumption standby touches power down switch | |
| CN205596398U (en) | Remote control lighting lamp circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |