CN104065364A - Intelligent keyboard switch and kitchen ventilator with keyboard switch - Google Patents
Intelligent keyboard switch and kitchen ventilator with keyboard switch Download PDFInfo
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- CN104065364A CN104065364A CN201410293625.1A CN201410293625A CN104065364A CN 104065364 A CN104065364 A CN 104065364A CN 201410293625 A CN201410293625 A CN 201410293625A CN 104065364 A CN104065364 A CN 104065364A
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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 keyboard switch, the invention still further relates to a kind of range hood that uses this keyboard switch.
Background technology
Keyboard switch is calling and interlocking switch also, and several buttons are in line as key sample.At every turn can only be by the next one, another can be upspring.There is one to close button, press and can not pin, but can make other button entirely upspring.Because keyboard switch is simple in structure, easy to operate, the characteristics such as safety durable are able to extensively be met the tendency, as electric fan, the household electrical appliance such as range hood, for example, when the keyboard switch on range hood is controlled blower fan system, only there is high wind, the function such as apoplexy and weak wind, while closing blower fan system, need to press and close button, also have in range hood keyboard switch and add timing switch at present, reached lampblack absorber function regularly, but timing switch mostly is mechanical timing switch, there is complex structure, volume is large, useful life is short, reliability is not high, true and the inflexible shortcoming of timing adjustment of bad timing, and its function singleness, can not realize the Based Intelligent Control of range hood, the function opening and closing as intermittent in lampblack absorber.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiency of above-mentioned prior art, and a kind of keyboard switch with intelligent object is provided.
Technical problem to be solved by this invention is to overcome the deficiency of above-mentioned prior art, and a kind of range hood that can realize Based Intelligent Control is provided.
The main technical schemes adopting according to intelligent keyboard switch provided by the invention is: comprise body and be located at the intelligent switch module on described body, described intelligent switch module comprises rectification circuit, electronic switch, on-state power supply generative circuit, circuits for triggering, microcontroller, off-state power supply generative circuit and electric source filter circuit; Described rectification circuit is converted into Rectified alternating current by the alternating current of described electronic switch; Described electronic switch is controlled the turn-on and turn-off of Rectified alternating current; When described electronic switch is during in conducting state, described on-state power supply generative circuit provides work required power supply in the zero passage section of alternating current for described microcontroller; Described circuits for triggering are controlled the break-make of described electronic switch, when described electronic switch is during in conducting state, trigger described on-state power supply generative circuit and provide power supply for described microcontroller; The break-make of electronic switch described in described microprocessor controls; When electronic switch is during in off state, the Rectified alternating current that described rectification circuit produces is that described electric source filter circuit charges by described off-state power supply generative circuit.
Intelligent keyboard switch provided by the invention also adopts following attached technical scheme:
Described electronic switch is one-way SCR Q3.
Described microcontroller comprises main control chip U2 and the capacitor C 6 being connected in parallel, the break-make of electronic switch described in described microprocessor controls, and described capacitor C 6 provides decoupling for described main control chip U2.
Described electric source filter circuit comprises capacitor C 3 and Zener diode ZNER2, the negative pole of the positive pole of described capacitor C 3 and described Zener diode ZNER2 links together and meets described main control chip U2, and the positive pole of the negative pole of described capacitor C 3 and described Zener diode ZNER2 links together and meets described main control chip U2.
Described off-state power supply generative circuit comprises resistance R 8, resistance R 9 and resistance R 10; The negative pole of Zener diode ZNER2 described in a termination after described resistance R 8, resistance R 9 and resistance R 10 are connected successively.
Described circuits for triggering comprise resistance R 6, resistance R 7, capacitor C 7, one-way SCR Q2; One end of described resistance R 7 connects the control utmost point of described one-way SCR Q2 after being connected with one end of described resistance R 6, the negative electrode of one-way SCR Q2 described in another termination of described resistance R 6, described capacitor C 7 also connects with described resistance R 6, the anode of one-way SCR Q2 described in another termination after described resistance R 8, resistance R 9 and resistance R 10 are connected successively.
Described on-state power supply generative circuit comprises Zener diode ZNER1, resistance R 11, resistance R 12, resistance R 13, capacitor C 4 and diode D12, the negative pole of described Zener diode ZNER1 connects the positive pole of described diode D12 after being connected with the positive pole of described capacitor C 4, the negative pole of described Zener diode ZNER1 connects the negative electrode of described one-way SCR Q2, after being connected, one end of one end of described resistance R 11 and described resistance R 12 connects the positive pole of described Zener diode ZNER1, the other end of described resistance R 11 connects the control utmost point of described one-way SCR Q3 after being connected with one end of described resistance R 13, the other end of described resistance R 12 connects described one-way SCR Q3 negative electrode after being connected with the other end of described resistance R 13, the negative pole of capacitor C 4 described in another termination of described resistance R 12.
Described rectification circuit comprises diode D13, diode D14, diode D15, diode D16; After linking together, the negative pole of the negative pole of described diode D13 and described diode D14 joins with the anode of described one-way SCR Q2 and the anode of described one-way SCR Q3 respectively, the positive pole of described diode D15 and described diode D16 positive pole link together and connect the negative electrode of described one-way SCR Q3, the positive pole of described diode D13 is connected with the negative pole of described diode D15, and the positive pole of described diode D14 is connected with the negative pole of described diode D16.
Described body comprises prime time key, weak shelves key, Based Intelligent Control key, illumination key and reset key, and described intelligent switch module is connected with described Based Intelligent Control key.
Described main control chip U1 is the single-chip microcomputer with the common IO port of analog conversion function.
The main technical schemes adopting according to range hood provided by the invention is: comprise casing, be located at fan assembly and control assembly in described casing, described casing is provided with into mouth and exhaust opening, described control assembly comprises keyboard switch, described keyboard switch comprises body and be located at the intelligent switch module on described body, and described intelligent switch module comprises rectification circuit, electronic switch, on-state power supply generative circuit, circuits for triggering, microcontroller, off-state power supply generative circuit and electric source filter circuit; Described rectification circuit is converted into Rectified alternating current by the alternating current of described electronic switch; Described electronic switch is controlled the short circuit of Rectified alternating current and is opened circuit; When described electronic switch is during in short-circuit condition, described on-state power supply generative circuit provides work required power supply in the zero passage section of alternating current for described microcontroller; Described circuits for triggering are controlled the break-make of described electronic switch, when described electronic switch is during in channel status, trigger described on-state power supply generative circuit and provide power supply for described microcontroller; The break-make of electronic switch described in described microprocessor controls; When electronic switch 2 is during in off state, the Rectified alternating current that described rectification circuit produces is that described electric source filter circuit charges by described off-state power supply generative circuit.
According to intelligent keyboard switch provided by the invention compared with prior art tool have the following advantages: first, the present invention is by intelligent switch module is set on keyboard switch, and the keyboard switch making is intelligent, has expanded its scope of application; Secondly, simple, the small volume of intelligent switch modular structure, its course of action are fast sensitive, safe and reliable.
According to range hood provided by the invention compared with prior art tool have the following advantages: the present invention arranges intelligent keyboard switch in control assembly, by the keying of intelligent switch module controls fan assembly, make range hood in the present invention can realize the function of delay switching-off and Intelligent fixed time ventilation, by mechanical control device, come delay switching-off to compare with existing lampblack absorber, the present invention is simple in structure, volume is little, reliability is high, long service life.
Accompanying drawing explanation
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.
Embodiment
Referring to Fig. 1 and Fig. 2, according to intelligent keyboard switch embodiment provided by the invention, comprise body and be located at the intelligent switch module on described body, described intelligent switch module comprises rectification circuit 1, electronic switch 2, on-state power supply generative circuit 3, circuits for triggering 4, microcontroller 5, off-state power supply generative circuit 6 and electric source filter circuit 7; Described rectification circuit 1 is converted into Rectified alternating current by the alternating current of described electronic switch 2; Described electronic switch 2 is controlled the turn-on and turn-off of Rectified alternating current; When described electronic switch 2 is during in conducting state, described on-state power supply generative circuit 3 provides work required power supply in the zero passage section of alternating current for described microcontroller 5; Described circuits for triggering 4 are controlled the break-make of described electronic switch 2, when described electronic switch 2 is during in conducting state, trigger described on-state power supply generative circuit 3 and provide power supply for described microcontroller 5; Described microcontroller 5 is controlled the break-make of described electronic switch 2; When electronic switch 2 is during in off state, the Rectified alternating current that described rectification circuit 1 produces be that described electric source filter circuit 7 charges by described off-state power supply generative circuit 6.First, the present invention is by intelligent switch module is set on keyboard switch, and the keyboard switch making is intelligent, has expanded its scope of application; Secondly, intelligent switch modular structure is simple, body is less, its course of action is fast sensitive, safe and reliable.
Referring to Fig. 1 and Fig. 2, according to intelligent keyboard switch embodiment provided by the invention, described electronic switch 2 is one-way SCR Q3.The triggering pin of one-way SCR Q3 is connected to on-state power supply generative circuit 3, and the 3 generating power voltages negative feedbacks of on-state power supply generative circuit are to the triggering pin of one-way SCR Q3 like this.Thereby guaranteed the stability of on-state power supply generative circuit 3 generating power voltages, the supply voltage for example generating is not subject to the impact of external voltage landing.
In addition one-way SCR Q3 works on off state, and it is minimum that its work produces heat, and power capacity can be increased or be reduced by the device model of change one-way SCR Q3; When one-way SCR Q3 turn-offs, passage current must reduce to 0, thereby the induction peak voltage of having avoided motor inductance to produce improves circuit working reliability.
Referring to Fig. 1 and Fig. 2, according to intelligent keyboard switch embodiment provided by the invention, described microcontroller 5 comprises main control chip U2 and the capacitor C 6 being connected in parallel, and described microcontroller 5 is controlled the break-make of described electronic switch 2, and described capacitor C 6 provides decoupling for described main control chip U2.Described main control chip U2 is the single-chip microcomputer with the common IO port of analog conversion function.Such as PIC10F204, SN8P2501B etc.
Referring to Fig. 1 and Fig. 2, according to intelligent keyboard switch embodiment provided by the invention, described electric source filter circuit 7 comprises capacitor C 3 and Zener diode ZNER2, the negative pole of the positive pole of described capacitor C 3 and described Zener diode ZNER2 links together and meets described main control chip U2, and the positive pole of the negative pole of described capacitor C 3 and described Zener diode ZNER2 links together and meets described main control chip U2.Capacitor C 3 can be smoothed to direct current by the Rectified alternating current that in circuits for triggering 4, resistance R 8, resistance R 9, resistance R 10 are sent here, and Zener diode ZNER2 can guarantee that level and smooth direct voltage is no more than its setting voltage value, as: 5.1V, avoids damaging microcontroller 5.Above-mentioned 4 devices are all small size device, contribute to dwindle finished product board size.
Referring to Fig. 1 and Fig. 2, according to intelligent keyboard switch embodiment provided by the invention, described off-state power supply generative circuit 6 comprises resistance R 8, resistance R 9 and resistance R 10; The negative pole of Zener diode ZNER2 described in a termination after described resistance R 8, resistance R 9 and resistance R 10 are connected successively.When resistance R 8, resistance R 9, resistance R 10 work, need to divide crest voltage more than single 300V, adopt 3 resistance series connection, prevent that resistance is not broken down by high-voltage, improve circuit working reliability, resistance is with low cost simultaneously, reduces manufacturing cost.
Referring to Fig. 1 and Fig. 2, according to intelligent keyboard switch embodiment provided by the invention, described circuits for triggering comprise resistance R 6, resistance R 7, capacitor C 7, one-way SCR Q2; One end of described resistance R 7 connects the control utmost point of described one-way SCR Q2 after being connected with one end of described resistance R 6, the negative electrode of one-way SCR Q2 described in another termination of described resistance R 6, described capacitor C 7 also connects with described resistance R 6, the anode of one-way SCR Q2 described in another termination after described resistance R 8, resistance R 9 and resistance R 10 are connected successively.Resistance R 6 is trigger current limiting resistance, prevents the excessive damage one-way SCR of trigger current Q2; Resistance R 7 and capacitor C 7 are eliminated circuit for triggering disturbing pulse, can eliminate the high order harmonic component interference that civil power seals in, and prevent false triggering, improve device functional reliability, and device cost is cheap simultaneously, reduces costs.
Referring to Fig. 1 and Fig. 2, according to intelligent keyboard switch embodiment provided by the invention, described on-state power supply generative circuit comprises Zener diode ZNER1, resistance R 11, resistance R 12, resistance R 13, capacitor C 4 and diode D12, the negative pole of described Zener diode ZNER1 connects the positive pole of described diode D12 after being connected with the positive pole of described capacitor C 4, the negative pole of described Zener diode ZNER1 connects the negative electrode of described one-way SCR Q2, after being connected, one end of one end of described resistance R 11 and described resistance R 12 connects the positive pole of described Zener diode ZNER1, the other end of described resistance R 11 connects the control utmost point of described one-way SCR Q3 after being connected with one end of described resistance R 13, the other end of described resistance R 12 connects described one-way SCR Q3 negative electrode after being connected with the other end of described resistance R 13, the negative pole of capacitor C 4 described in another termination of described resistance R 12.The pulse voltage that capacitor C 4 can be sent one-way SCR Q2 here is smoothed to direct current, and through electric source filter circuit 7, offer microcontroller 5 by diode D12, diode D12 can also prevent that electric source filter circuit 7 electric currents from pouring in down a chimney triggering one-way SCR Q3 simultaneously, Zener diode ZNER1 and resistance R 12 form series voltage negative-feedback circuit, the voltage that resistance R 12 is shared feeds back to the triggering pin of one-way SCR Q3 by resistance R 11, resistance R 13 is that elimination resistance is disturbed in the triggering of one-way SCR Q3.It is underground that this circuit is placed in same reference by power supply generative circuit and electronic switch break-make control triggering electric circuit, and photoelectricity isolation trigger device needn't be set, and reduced device cost.
Referring to Fig. 1 and Fig. 2, according to intelligent keyboard switch embodiment provided by the invention, described rectification circuit 1 comprises diode D13, diode D14, diode D15, diode D16; After linking together, the negative pole of the negative pole of described diode D13 and described diode D14 joins with the anode of described one-way SCR Q2 and the anode of described one-way SCR Q3 respectively, the positive pole of described diode D15 and described diode D16 positive pole link together and connect the negative electrode of described one-way SCR Q3, the positive pole of described diode D13 is connected with the negative pole of described diode D15, and the positive pole of described diode D14 is connected with the negative pole of described diode D16.4 diode D13, D14, D15, D16 form rectified current, and the AC rectification of switch is become to Rectified alternating current, in order to reduce device power consumption, use the fast recovery diode of low tube voltage drop.
According to intelligent keyboard switch embodiment provided by the invention, described body comprises prime time key, weak shelves key, Based Intelligent Control key, illumination key and reset key, and described intelligent switch module is connected with described Based Intelligent Control key.After being pressed, the Based Intelligent Control key of keyboard switch just can carry out the programing function in electronic switch module, the function that for example can carry out time-delay closing blower fan function or regularly take a breath to kitchen.The Based Intelligent Control key of keyboard switch and other all buttons logically do not conflict simultaneously, if reset key, prime time key or weak shelves key are pressed, Based Intelligent Control key resets, and intelligent control function is removed.Due to electronic control module and keyboard switch contact employing series connection form, if electronic switch module is damaged, can not affect the use of other button simultaneously.
According to range hood embodiment provided by the invention, comprise casing, be located at fan assembly and control assembly in described casing, described casing is provided with into mouth and exhaust opening, described control assembly comprises keyboard switch, wherein casing and fan assembly are technology comparatively ripe in prior art, do not repeating, the keyboard switch in the present embodiment is the keyboard switch described in above-described embodiment herein.The present invention arranges intelligent keyboard switch in control assembly, by the keying of intelligent switch module controls fan assembly, make range hood in the present invention can realize the function of delay switching-off and Intelligent fixed time ventilation, by mechanical control device, come delay switching-off to compare with existing lampblack absorber, the present invention is simple in structure, volume is little, reliability is high, long service life.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can change these embodiment, scope of the present invention is limited by claims and equivalent thereof.
Claims (10)
1. an intelligent keyboard switch, it is characterized in that: comprise body and be located at the intelligent switch module on described body, described intelligent switch module comprises rectification circuit, electronic switch, on-state power supply generative circuit, circuits for triggering, microcontroller, off-state power supply generative circuit and electric source filter circuit; Described rectification circuit is converted into Rectified alternating current by the alternating current of described electronic switch; Described electronic switch is controlled the turn-on and turn-off of Rectified alternating current; When described electronic switch is during in conducting state, described on-state power supply generative circuit provides work required power supply in the zero passage section of alternating current for described microcontroller; Described circuits for triggering are controlled the break-make of described electronic switch, when described electronic switch is during in conducting state, trigger described on-state power supply generative circuit and provide power supply for described microcontroller; The break-make of electronic switch described in described microprocessor controls; When electronic switch is during in off state, the Rectified alternating current that described rectification circuit produces is that described electric source filter circuit charges by described off-state power supply generative circuit.
2. keyboard switch according to claim 1, is characterized in that: described electronic switch is one-way SCR Q3.
3. keyboard switch according to claim 1, it is characterized in that: described microcontroller comprises main control chip U2 and the capacitor C 6 being connected in parallel, the break-make of electronic switch described in described microprocessor controls, described capacitor C 6 provides decoupling for described main control chip U2.
4. keyboard switch according to claim 3, it is characterized in that: described electric source filter circuit comprises capacitor C 3 and Zener diode ZNER2, the negative pole of the positive pole of described capacitor C 3 and described Zener diode ZNER2 links together and meets described main control chip U2, and the positive pole of the negative pole of described capacitor C 3 and described Zener diode ZNER2 links together and meets described main control chip U2.
5. keyboard switch according to claim 4, is characterized in that: described off-state power supply generative circuit comprises resistance R 8, resistance R 9 and resistance R 10; The negative pole of Zener diode ZNER2 described in a termination after described resistance R 8, resistance R 9 and resistance R 10 are connected successively.
6. keyboard switch according to claim 5, is characterized in that: described circuits for triggering comprise resistance R 6, resistance R 7, capacitor C 7, one-way SCR Q2; One end of described resistance R 7 connects the control utmost point of described one-way SCR Q2 after being connected with one end of described resistance R 6, the negative electrode of one-way SCR Q2 described in another termination of described resistance R 6, described capacitor C 7 also connects with described resistance R 6, the anode of one-way SCR Q2 described in another termination after described resistance R 8, resistance R 9 and resistance R 10 are connected successively.
7. keyboard switch according to claim 6, is characterized in that: described on-state power supply generative circuit comprises Zener diode ZNER1, resistance R 11, resistance R 12, resistance R 13, capacitor C 4 and diode D12, the negative pole of described Zener diode ZNER1 connects the positive pole of described diode D12 after being connected with the positive pole of described capacitor C 4, the negative pole of described Zener diode ZNER1 connects the negative electrode of described one-way SCR Q2, after being connected, one end of one end of described resistance R 11 and described resistance R 12 connects the positive pole of described Zener diode ZNER1, the other end of described resistance R 11 connects the control utmost point of described one-way SCR Q3 after being connected with one end of described resistance R 13, the other end of described resistance R 12 connects described one-way SCR Q3 negative electrode after being connected with the other end of described resistance R 13, the negative pole of capacitor C 4 described in another termination of described resistance R 12.
8. keyboard switch according to claim 7, is characterized in that: described rectification circuit comprises diode D13, diode D14, diode D15, diode D16; After linking together, the negative pole of the negative pole of described diode D13 and described diode D14 joins with the anode of described one-way SCR Q2 and the anode of described one-way SCR Q3 respectively, the positive pole of described diode D15 and described diode D16 positive pole link together and connect the negative electrode of described one-way SCR Q3, the positive pole of described diode D13 is connected with the negative pole of described diode D15, and the positive pole of described diode D14 is connected with the negative pole of described diode D16.
9. according to the keyboard switch described in claim 1-8 any one, it is characterized in that: described body comprises prime time key, weak shelves key, Based Intelligent Control key, illumination key and reset key, and described intelligent switch module is connected with described Based Intelligent Control key.
10. a range hood, comprise casing, be located at fan assembly and control assembly in described casing, described casing is provided with into mouth and exhaust opening, described control assembly comprises keyboard switch, it is characterized in that: described keyboard switch is the intelligent keyboard switch described in any one claim in claim 1-9.
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 true CN104065364A (en) | 2014-09-24 |
| CN104065364B CN104065364B (en) | 2017-05-03 |
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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 |
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| CN (1) | CN104065364B (en) |
Family Cites Families (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
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| CN104065364B (en) | 2017-05-03 |
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