CN102032646B - Ultrasonic humidifier with overheat self-locking function - Google Patents
Ultrasonic humidifier with overheat self-locking function Download PDFInfo
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- CN102032646B CN102032646B CN2010105498405A CN201010549840A CN102032646B CN 102032646 B CN102032646 B CN 102032646B CN 2010105498405 A CN2010105498405 A CN 2010105498405A CN 201010549840 A CN201010549840 A CN 201010549840A CN 102032646 B CN102032646 B CN 102032646B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention relates to an ultrasonic humidifier with an overheat self-locking function, comprising a reed switch, a mist quantity regulating circuit, an oscillating circuit, and indicating circuit, a fan driving circuit and a temperature control self-locking circuit. Temperature parameters of a humidifier are collected and compared to control the working states of the mist quantity regulating circuit and the indicating circuit, if the temperature parameters reach a set value, the mist quantity regulating circuit is controlled not to supply a bias voltage, the indicating circuit is controlled to display corresponding information, and the temperature control self-locking circuit per se is subjected to self-lock; and if the temperature parameters do not reach the set value, the temperature control self-locking circuit does not influence the mist quantity regulating circuit and the indicating circuit. In the invention, when a machine lacks of water, the reed switch is switched off, the mist quantity regulating circuit cannot work normally, meanwhile, the fan driving circuit does not work either, the indicating circuit displays corresponding information, and the temperature control self-locking circuit has no influence to the indicating circuit; and when the reed switch is switched on, the mist quantity regulating circuit and the indicating circuit are controlled by the reed switch and simultaneously controlled by the temperature control self-locking circuit.
Description
Technical field
The present invention relates to household electrical appliance technical field, be specifically related to ultrasonic humidifier.
Background technology
Ultrasonic humidifier is widely used and general approval because its humidification is effective, and through for many years development, product has progressed into the maturity period.But because the humidification amount is large, there is a general defective in ultrasonic humidifier, and namely device heating is serious; In addition, man-made fault also can cause dry combustion method such as there being foreign matter to block magnetic element etc.Existing solution comprises: 1. utilize water naturally to cool off, this method efficient and reliability are not high; 2. utilize disposable temperature protection fuse-link, this kind method can't be used after fuse-link damages; 3. use the temperature controller of restorability, this kind mode can be protected when overheated, but in the unwitting situation of user, electrical part is not only burnt in intermittently dry combustion method of machine, also can be to the fusing of shell plastic cement, and distortion does not finally reach the effect of protection.
Summary of the invention
Humidifier the objective of the invention is to address the deficiencies of the prior art, so that can be protected when overheated safely and effectively.
Purpose of the present invention is realized by following technical scheme: a kind of ultrasonic humidifier with overheated self-lock protection, comprise tongue tube, mist amount regulating circuit, oscillating circuit, indicating circuit and fan drive circuit, the keying of tongue tube control mist amount regulating circuit and fan drive circuit, indicating circuit shows open/close states, and mist amount regulating circuit provides bias voltage for oscillating circuit; It is characterized in that: also comprise the temperature control latching circuit, temperature parameter by gathering humidifier is controlled the duty of mist amount regulating circuit and indicating circuit after relatively, control mist amount regulating circuit if temperature parameter reaches setting value bias voltage is not provided, and control indicating circuit demonstration corresponding information, and the self-locking of temperature control latching circuit own; If temperature parameter does not reach and sets value then the temperature control latching circuit does not affect mist amount regulating circuit normal operation and indicating circuit normally shows.
The utility model has solved the problem of ultrasonic humidifier overtemperature protection, and when the machine lack of water, tongue tube disconnects, mist amount regulating circuit can't work, simultaneously fan drive circuit is not worked yet, and indicating circuit shows corresponding information, the temperature control latching circuit on it without impact; And when the tongue tube closure, mist amount regulating circuit and indicating circuit are subjected to the control of tongue tube, are controlled by simultaneously the control of temperature control latching circuit.When self-locking state, until temperature lowers, and re-power and to remove.The utility model need not the CPU programme-control, has saved cpu resource.
Description of drawings
The schematic diagram of the ultrasonic humidifier control circuit that Fig. 1 provides for embodiment.
The specific embodiment
As shown in Figure 1, the present embodiment provides ultrasonic humidifier to comprise: tongue tube SIP5, temperature control latching circuit 1, mist amount regulating circuit 2, oscillating circuit 3, indicating circuit 4 and fan drive circuit 5, and below in conjunction with a specific implementation of accompanying drawing detailed description each several part circuit.
Tongue tube SIP5 one termination power, the power supply supply side of another termination mist amount regulating circuit 2 and fan drive circuit 5, thereby the keying of control mist amount regulating circuit 2 and fan drive circuit 5.
Temperature control latching circuit 1 comprises: PNP triode Q4, comparator U1A, thermistor RT, divider resistance R8, R9, R10, filter capacitor C5, current-limiting resistance R7, diode D2 and diode D3.Resistance R 10 connects power supply, thermistor RT ground connection, and the node of resistance R 10 and thermistor RT connects the emitter stage of the first signal input of comparator U1A (i.e. 3 pin) and triode Q4; Resistance R 9 connects power supply, resistance R 8 ground connection, and the node of resistance R 9 and resistance R 8 connects the secondary signal input of comparator U1A (i.e. 2 pin); The output of comparator U1A (i.e. 1 pin) connect respectively negative electrode, the diode D3 of diode D2 negative electrode, and connect the base stage of triode Q4 through resistance R 7; The grounded collector of triode Q4; Filter capacitor C5 is connected on the secondary signal input of comparator U1A; The anode of diode D2 provides control signal for mist amount regulating circuit 2, and the anode of diode D3 provides control signal for indicating circuit 4.
Wherein, the choosing value of resistance R 8, R9 cooperates sets a temperature threshold, when the temperature parameter (having transferred the signal of telecommunication to) of thermistor RT induction when not reaching this temperature threshold, the first signal input of comparator U1A (i.e. 3 pin) voltage will be greater than secondary signal input (i.e. 2 pin) voltage, the output of comparator U1A (i.e. 1 pin) output high level, triode Q4 cut-off this moment, 2 normal operations of mist amount regulating circuit, indicating circuit 4 normally shows.When the temperature parameter of thermistor RT induction reaches the temperature threshold of setting, the first signal input of comparator U1A (i.e. 3 pin) voltage will be lower than secondary signal input (i.e. 2 pin) voltage, the output of comparator U1A (i.e. 1 pin) output low level, triode Q4 conducting this moment, the first signal input of comparator U1A after the conducting (i.e. 3 pin) will be low level, the secondary signal input of comparator U1A (i.e. 2 pin) will be higher than the voltage of first signal input (i.e. 3 pin) forever, by output low level again after relatively, simultaneously D2 conducting, Q3 also ends, oscillator can't obtain bias voltage, thereby do not work, and comparator U1A also will realize the self-locking output low level.
Mist amount regulating circuit 2 comprises NPN type triode Q3, power semifixed resistor R4, stepless mist amount regulating element SIP6, divider resistance R5, R6, storage capacitor C4, resistance R 3 and coil L1, L2.Meet tongue tube SIP5 after resistance R 5, power semifixed resistor R4, the stepless mist amount regulating element SIP6 series connection, resistance R 6 ground connection, the node of resistance R 5 and resistance R 6 connects diode D2 anode and triode Q3 base stage, triode Q3 colelctor electrode meets tongue tube SIP5, storage capacitor C4 positive pole connects triode Q3 emitter stage, minus earth, and storage capacitor C4 the two poles of the earth are wiring circle L1 and L2 respectively, provide bias voltage by coil L1 and L2 for oscillating circuit 3, resistance R 3 connects storage capacitor C4 positive pole and ground.Wherein, use triode Q3 to make voltage follower, and is regulated as stepless mist amount by SIP6, R4 power semifixed resistor limits the peak power of machine with this, and R5, R6 dividing potential drop are adjusted to hour SIP6, have an initial mist amount to export.
Indicating circuit 4 comprises red and green color lamp D4, NPN type triode Q5 and current-limiting resistance R12, R13, R14.The red light positive pole of bi-colour light D4 connects power supply through resistance R 13, the green light positive pole of bi-colour light D4 meets tongue tube SIP5 through resistance R 14, red light negative pole, green light minus earth, the base stage of triode Q5 connects anode, the colelctor electrode that tongue tube SIP5 meets diode D3 simultaneously through resistance R 12 and connects red light positive pole, grounded emitter.Triode Q5 conducting during normal operation, the red light of bi-colour light D4 is low level just very, and green light is high level just very, gives a green light; When lack of water, tongue tube SIP5 disconnects, triode Q5 cut-off, and green light is low level just very, and red light is high level just very, sends out a warning; In addition, when work is overheated (temperature parameter that gathers greater than the temperature threshold of setting is), diode D3 conducting, triode Q5 cut-off, green light positive pole and the red light positive pole of bi-colour light D4 are high level all, are shown as yellow.
Fan drive circuit 5 comprises current-limiting resistance R11, NPN type triode Q1 and joint SIP3.Resistance R 11 1 termination tongue tube SIP5, the base stage of another termination triode Q1, the first pin of the colelctor electrode joint SIP3 of triode Q1, grounded emitter, the first pin wind-receiving fan power supply of joint SIP3, another pin of SIP3 connects fan.
In addition, oscillating circuit 3 adopts general supersonic oscillations circuit, and its concrete structure repeats no more among the application for knowing technology.
It should be noted that when the comparator U1A of temperature control latching circuit 1 enters the self-locking state, also can't make the circuit upset even temperature lowers, only have again start, and temperature lowers when not reaching setting value the ability de-preservation.
Above embodiment only is fully open unrestricted the present invention, keynote idea of the present invention is by sensing humidifier temperature, itself and setting threshold are judged relatively whether its duty is normal, if normal, then indicating circuit, mist amount regulating circuit and oscillating circuit normal operation; If undesired, then do not worked by temperature control latching circuit control mist amount regulating circuit, control simultaneously indicating circuit and show improper information.So, the particular circuit configurations that above embodiment provides only is a kind of specific implementation wherein, should not be considered to limit sole mode of the present invention, for those skilled in the art under the enlightenment of keynote idea of the present invention, the substitute mode that other can be arranged, for example, the triode in the temperature control latching circuit adopts positive-negative-positive or NPN type, perhaps wherein thermistor is selected the element of positive temperature coefficient or negative temperature coefficient, and its circuit structure all can be different.
Claims (3)
1. ultrasonic humidifier with overheated self-lock protection, comprise tongue tube, mist amount regulating circuit, oscillating circuit, indicating circuit and fan drive circuit, the keying of tongue tube control mist amount regulating circuit and fan drive circuit, indicating circuit shows open/close states, and mist amount regulating circuit provides bias voltage for oscillating circuit; Also comprise the temperature control latching circuit, temperature parameter by gathering humidifier is controlled the duty of mist amount regulating circuit and indicating circuit after relatively, control mist amount regulating circuit if temperature parameter reaches setting value bias voltage is not provided, and control indicating circuit demonstration corresponding information, and the self-locking of temperature control latching circuit own; If temperature parameter does not reach and sets value then the temperature control latching circuit does not affect mist amount regulating circuit normal operation and indicating circuit normally shows; It is characterized in that, described temperature control latching circuit comprises: PNP triode Q4, comparator U1A, thermistor RT, resistance R 8, resistance R 9, resistance R 10, diode D2 and diode D3; Resistance R 10 connects power supply, thermistor RT ground connection, and the node of resistance R 10 and thermistor RT connects the first signal input of comparator U1A and the emitter stage of triode Q4; Resistance R 9 connects power supply, resistance R 8 ground connection, and the node of resistance R 9 and resistance R 8 connects the secondary signal input of comparator U1A; The output of comparator U1A connects respectively negative electrode, and the base stage of triode Q4 of negative electrode, the diode D3 of diode D2; The grounded collector of triode Q4; The anode of diode D2 provides control signal for mist amount regulating circuit, and the anode of diode D3 provides control signal for indicating circuit.
2. the ultrasonic humidifier with overheated self-lock protection as claimed in claim 1, it is characterized in that, described mist amount regulating circuit comprises NPN type triode Q3, power semifixed resistor R4, stepless mist amount regulating element SIP6, resistance R 5, resistance R 6, storage capacitor C4, resistance R 3 and coil L1, coil L2; Connect tongue tube after resistance R 5, power semifixed resistor R4, the stepless mist amount regulating element SIP6 series connection, resistance R 6 ground connection, the node of resistance R 5 and resistance R 6 connects diode D2 anode and triode Q3 base stage, triode Q3 colelctor electrode connects tongue tube, storage capacitor C4 positive pole connects triode Q3 emitter stage, minus earth, and storage capacitor C4 the two poles of the earth are wiring circle L1 and coil L2 respectively, provide bias voltage by coil L1 and coil L2 for oscillating circuit, resistance R 3 connects storage capacitor C4 positive pole and ground.
3. the ultrasonic humidifier with overheated self-lock protection as claimed in claim 1 or 2 is characterized in that, described indicating circuit comprises red and green color lamp D4, NPN type triode Q5 and resistance R 12, resistance R 13, resistance R 14; The red light positive pole of bi-colour light D4 connects power supply through resistance R 13, the green light positive pole of bi-colour light D4 connects tongue tube through resistance R 14, red light negative pole, green light minus earth, the base stage of triode Q5 connects tongue tube through resistance R 12, the base stage of triode Q5 directly connects the anode of diode D3, and the colelctor electrode of triode Q5 connects red light positive pole, grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105498405A CN102032646B (en) | 2010-11-18 | 2010-11-18 | Ultrasonic humidifier with overheat self-locking function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105498405A CN102032646B (en) | 2010-11-18 | 2010-11-18 | Ultrasonic humidifier with overheat self-locking function |
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| CN102032646A CN102032646A (en) | 2011-04-27 |
| CN102032646B true CN102032646B (en) | 2013-03-27 |
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| CN2010105498405A Active CN102032646B (en) | 2010-11-18 | 2010-11-18 | Ultrasonic humidifier with overheat self-locking function |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352005B (en) * | 2015-11-23 | 2019-04-02 | 珠海格力电器股份有限公司 | Air-humidification method, device and system based on electric heater |
| CN105352091A (en) * | 2015-11-30 | 2016-02-24 | 珠海格力电器股份有限公司 | Humidifier and water-free heating preventingmethod thereof |
| CN106168775A (en) * | 2016-04-27 | 2016-11-30 | 熊运轩 | Overcurrent overheat self-lock protection loop sweep type fire-fighting direct current distribution electric installation |
| CN110657859B (en) * | 2019-09-29 | 2021-12-10 | 广东科高电器有限公司 | Waterless dry-burning detection circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2729569Y (en) * | 2004-08-16 | 2005-09-28 | 梁文广 | Humidifier with water level indicating alarm |
| CN201226443Y (en) * | 2008-07-01 | 2009-04-22 | 东莞市前锋电子有限公司 | Self-locking protection device for heating electric appliance |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62248952A (en) * | 1987-03-27 | 1987-10-29 | Toshiba Corp | Ultrasonic humidifying device |
| EP1319905A4 (en) * | 2000-09-21 | 2005-12-14 | Daikin Ind Ltd | Humidifier and air conditioner using the humidifier |
| JP4434308B1 (en) * | 2008-09-01 | 2010-03-17 | ダイキン工業株式会社 | Humidifier |
| CN202002249U (en) * | 2010-11-18 | 2011-10-05 | 珠海格力电器股份有限公司 | Ultrasonic wave humidifier with self-locking protection for overheating |
-
2010
- 2010-11-18 CN CN2010105498405A patent/CN102032646B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2729569Y (en) * | 2004-08-16 | 2005-09-28 | 梁文广 | Humidifier with water level indicating alarm |
| CN201226443Y (en) * | 2008-07-01 | 2009-04-22 | 东莞市前锋电子有限公司 | Self-locking protection device for heating electric appliance |
Non-Patent Citations (1)
| Title |
|---|
| JP昭62-248952A 1987.10.29 |
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