CN2356274Y - Automatic ventilation controller for gas water heater - Google Patents
Automatic ventilation controller for gas water heater Download PDFInfo
- Publication number
- CN2356274Y CN2356274Y CN 98246583 CN98246583U CN2356274Y CN 2356274 Y CN2356274 Y CN 2356274Y CN 98246583 CN98246583 CN 98246583 CN 98246583 U CN98246583 U CN 98246583U CN 2356274 Y CN2356274 Y CN 2356274Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- output end
- automatic ventilation
- ventilation controller
- temperature sensor
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an automatic ventilation controller for a gas water heater, which controls the operation of the exhaust fans, comprising a casing. A power supply input end is connected with a power supply output end through a relay contact, the power supply input end is also connected with a depressurization rectification circuit, the output end of the depressurization rectification circuit is connected with a switch circuit, the input end of the switch circuit is connected with a temperature sensor, and the output end of the switch circuit is the relay contact. The utility model has the advantages of safe operation, easy maintenance and reliable operation.
Description
The utility model relates to electronic apparatus, especially a kind of gas heater automatic ventilation controller of whether controlling the exhaust fan keying according to gas water heater working.
Present domestic gas-fired water heater, especially the straight-line gas heater produces a large amount of waste gas in use, this waste gas impacts people's healthy meeting, when particularly if the room is less, draw badly etc. makes the burning oxygen supply not enough, the carbon monoxide entail dangers to people's that its burning produces life security.Therefore, need a kind of gas heater automatic ventilation controller that when gas heater starts, can control the exhaust fan exhaust ventilation, existing " gas heater ventilation automatic controller " (patent announcement number is CN2272119Y, the day for announcing is on January 7th, 1998), this gas heater automatic ventilation controller is to adopt the temperature-sensing element of bimetal leaf one class be installed in the gas heater Waste gas outlet to be connected in parallel on the exhaust fan switch to constitute, and such structure one is that temperature-sensing element band civil power is dangerous; Two are mounted in that the bimetal leaf contact of gas heater Waste gas outlet is oxidized easily, thereby corrosion causes action unreliable.
The purpose of this utility model provides a kind of gas heater automatic ventilation controller that can control the exhaust fan exhaust when gas water heater working automatically, safely reliably.
For achieving the above object, scheme of the present utility model is: it includes shell, power input, power output end and temperature sensor, described power input joins by relay contact and power output end, described power input also is connected to step-down rectifying circuit, this step-down rectifying circuit output is connected to an on-off circuit, the input of this on-off circuit and said temperature sensor join, and the output of this on-off circuit is described relay contact.When gas water heater working, be installed in the temperature sensor output signal gauge tap circuit debugging on the gas heater, power input just provides power supply by relay contact to the power output end for the exhaust fan power supply.
Described on-off circuit can be connected into by time-base integrated circuit, switch triode, diode, resistance, electric capacity and relay; Described temperature sensor can be the semi-conductor type temperature-sensitive element, but thermistor preferably.
Because adopt such scheme, the utility model compared with prior art has following advantage:
1, owing to the temperature sensor that is installed in the gas heater Waste gas outlet is on the on-off circuit input that is connected on low tension work, so working service is all fool proof easily;
2, because the temperature sensor that is adopted is contactless, thereby its work is very reliable.
Below in conjunction with the accompanying drawing example the utility model is done further auspicious stating:
Fig. 1 is the circuit theory schematic diagram of the utility model embodiment.
In embodiment illustrated in fig. 1, the dot-dash wire frame is represented shell, and its power input is L1, L2, and power output end is L3, L4, wherein the L1 of power input joins by the contact of relay J and the L3 of power output end, and the L2 of power input L4 direct and power output end joins; Power input L1, L2 also are connected to the step-down rectifying circuit that is connected into by transformer B1, commutation diode D1-D4, this step-down rectifying circuit output is connected to an on-off circuit, this on-off circuit is connected into by time-base integrated circuit IC (NE555), switch triode BG1, diode D5, relay J, resistance R 1, R2 and capacitor C, its input and thermistor R
tJoin; Its output is the contact of above-mentioned relay J.
The utility model in use, power input L1, L2 connect mains supply; And power output end L3, L4 connect exhaust fan; Thermistor R
tBe contained in by lead-in wire on the exhaust outlet of gas heater.When gas heater was lighted, its exhaust outlet temperature rose, thermistor R
tResistance reduces, the corresponding reduction of current potential of the 2nd pin of time-base integrated circuit IC (NE555), when this potential drop is low to moderate to a certain degree, the 3rd pin output high potential of time-base integrated circuit IC (NE555), switch triode BG is open-minded, the relay J adhesive, power input L1, L2 provide power supply by the contact of relay J to power output end L3, L4 for the exhaust fan power supply, and exhaust fan starts exhaust ventilation; Otherwise when gas heater was flame-out, its exhaust outlet temperature descended, thermistor R
tResistance increases, the corresponding raising of current potential of the 2nd pin of time-base integrated circuit IC (NE555), when this current potential is increased to a certain degree, the 3rd pin output electronegative potential of time-base integrated circuit IC (NE555), switch triode BG ends, and relay J discharges, and the break of contact power input L1 of relay J is to the path of power output end L3, be the power supply dead electricity of power output end L3, the L4 of exhaust fan power supply, exhaust fan stops exhaust ventilation.
Claims (2)
1, a kind of gas heater automatic ventilation controller of controlling exhaust fan work, it includes shell, power input, power output end and temperature sensor, it is characterized in that: described power input joins by relay contact and power output end, described power input also is connected to step-down rectifying circuit, the output of this step-down rectifying circuit is connected to on-off circuit, the input of this on-off circuit and said temperature sensor join, and the output of this on-off circuit is described relay contact.
2, gas heater automatic ventilation controller according to claim 1 is characterized in that: also include time-base integrated circuit (IC), switch triode (BG) and relay (J) in the described on-off circuit; Described temperature sensor is thermistor (R
t).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98246583 CN2356274Y (en) | 1998-12-03 | 1998-12-03 | Automatic ventilation controller for gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98246583 CN2356274Y (en) | 1998-12-03 | 1998-12-03 | Automatic ventilation controller for gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2356274Y true CN2356274Y (en) | 1999-12-29 |
Family
ID=33991993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98246583 Expired - Fee Related CN2356274Y (en) | 1998-12-03 | 1998-12-03 | Automatic ventilation controller for gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2356274Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351239A (en) * | 2015-12-14 | 2016-02-24 | 王志 | Direct-discharging gas water heater and exhaust fan synchronizer |
| CN105351238A (en) * | 2015-12-09 | 2016-02-24 | 周芸 | Gas water heater and exhaust fan synchronous-working device |
| CN105371502A (en) * | 2015-12-07 | 2016-03-02 | 周玉林 | Gas water heater and fan linkage device |
| CN105370611A (en) * | 2015-12-05 | 2016-03-02 | 周芸 | Gas water heater and exhaust fan linkage device |
| CN105428120A (en) * | 2015-12-11 | 2016-03-23 | 周云侠 | Direct-discharging type gas water heater and exhaust fan linkage apparatus |
-
1998
- 1998-12-03 CN CN 98246583 patent/CN2356274Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370611A (en) * | 2015-12-05 | 2016-03-02 | 周芸 | Gas water heater and exhaust fan linkage device |
| CN105371502A (en) * | 2015-12-07 | 2016-03-02 | 周玉林 | Gas water heater and fan linkage device |
| CN105351238A (en) * | 2015-12-09 | 2016-02-24 | 周芸 | Gas water heater and exhaust fan synchronous-working device |
| CN105428120A (en) * | 2015-12-11 | 2016-03-23 | 周云侠 | Direct-discharging type gas water heater and exhaust fan linkage apparatus |
| CN105351239A (en) * | 2015-12-14 | 2016-02-24 | 王志 | Direct-discharging gas water heater and exhaust fan synchronizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |