CN201739207U - Gas water heater fan control and feedback circuit - Google Patents
Gas water heater fan control and feedback circuit Download PDFInfo
- Publication number
- CN201739207U CN201739207U CN2010201950795U CN201020195079U CN201739207U CN 201739207 U CN201739207 U CN 201739207U CN 2010201950795 U CN2010201950795 U CN 2010201950795U CN 201020195079 U CN201020195079 U CN 201020195079U CN 201739207 U CN201739207 U CN 201739207U
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- CN
- China
- Prior art keywords
- fan
- blower fan
- gas water
- speed
- feeder loop
- 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 discloses a gas water heater fan control and feedback circuit, which comprises a single chip, a fan, a fan current signal feedback circuit, a fan speed feedback circuit and a rectification circuit, wherein the fan is a direct current speed-adjustable fan. Under different working states, the single chip outputs a PWM control signal and controls the fan speed. Under a same working state, the duty ratio of the PWM control signal is regulated according to the current and the speed fed back from the fan so as to adjust the fan speed. The utility model has the advantages that the gas water heater can acquire different fan speeds under different working states and can keep the fan speed constant under a same working state.
Description
Technical field
The utility model relates to a kind of control and feeder loop of blower fan, the control and the feeder loop of the blower fan that uses in particularly a kind of gas water-heater.
Background technique
Blower fan is mainly used in gas water-heater gets rid of the harmful gases such as carbon monoxide CO that combustion gas produces in combustion process, the blower fan in the gas water-heater is in the past mainly controlled rotation speed of fan with alternating signal, and general rotating speed is non-adjustable.
Because the combustion gas firepower need be regulated size with different use condition, and the amount of the corresponding harmful gas that is produced under different firepower is different, nonadjustable rotating speed might be got rid of unclean to harmful gas under high firepower, perhaps under low firepower, do not need high rotating speed again, can waste electric power like this.
The model utility content
The utility model is intended to overcome the nonadjustable shortcoming of using in the described gas water-heater of background technique of rotation speed of fan.
In order to overcome the problems referred to above, the utility model has designed a kind of gas water-heater blower fan control and feeder loop, comprise single-chip microcomputer, blower fan, blower fan current signal feeder loop, rotation speed of fan feeder loop, rectification circuit, wherein blower fan current signal feeder loop, rotation speed of fan feeder loop, rectification circuit are parallel between single-chip microcomputer and the blower fan, and blower fan adopts direct current variable-speed blower fan.When gas water-heater under different working staties, the rotating speed of the required operation of blower fan is different, and under every kind of working state, it is constant to require rotation speed of fan to keep again.Gas water-heater is under the different operating state, and single-chip microcomputer is exported corresponding different pwm control signal from the PWM mouth, behind over commutation, obtains constant voltage, the running of control blower fan; Gas water-heater is under same working state, when rotation speed of fan accelerates or is slack-off, the Chip Microcomputer A mouth detects blower fan current signal and tach signal according to blower fan current signal feeder loop, rotation speed of fan feeder loop, go to regulate the dutycycle of SCM PWM control signal, change blower voltage simultaneously, regulate rotation speed of fan, make it to keep invariablenes turning speed.
By above-mentioned improvement, its beneficial effect is: gas water-heater can obtain different rotation speed of fan under the different operating state, and under same working state, it is constant that rotation speed of fan can keep again.
Description of drawings
Fig. 1 is the structure diagram of control of gas water-heater blower fan and feeder loop.
Wherein the symbol description of Fig. 1 is as follows:
1---blower fan
2---blower fan current signal feeder loop
3---rotation speed of fan feeder loop
4---rectification circuit
5---single-chip microcomputer
The 51---PWM mouth
52---AD mouth 1
53---AD mouth 2.
Embodiment
As shown in Figure 1, a kind of gas water-heater blower fan control and feeder loop, comprise single-chip microcomputer 5, blower fan 1, blower fan current signal feeder loop 2, rotation speed of fan feeder loop 3, rectification circuit 4, contain PWM mouth 51, AD mouth 52, AD mouth 53 on the single-chip microcomputer 5, wherein blower fan 1 adopts direct current variable-speed blower fan.Gas water-heater is under the different operating state, and single-chip microcomputer 5 after rectification circuit 4 rectifications, obtains constant voltage from the corresponding different pwm control signal of PWM mouth 51 outputs, 1 running of control blower fan; Gas water-heater is under same working state, when blower fan 1 rotating speed accelerates or is slack-off, Chip Microcomputer A mouth 52, AD mouth 53 detect blower fan current signal and tach signal according to blower fan current signal feeder loop 2, rotation speed of fan feeder loop 3 respectively, go to regulate the dutycycle of SCM PWM control signal, change blower fan 1 voltage simultaneously, regulate blower fan 1 rotating speed, make it to keep invariablenes turning speed.
Claims (2)
1. a gas water-heater blower fan is controlled and feeder loop, it is characterized in that forming by single-chip microcomputer (5), blower fan (1), blower fan current signal feeder loop (2), rotation speed of fan feeder loop (3), rectification circuit (4), contain PWM mouth (51), AD mouth (52), AD mouth (53) on the single-chip microcomputer (5), blower fan (1) adopts direct current variable-speed blower fan, and wherein blower fan current signal feeder loop (2), rotation speed of fan feeder loop (3), rectification circuit (4) are parallel between single-chip microcomputer (5) and the blower fan (1).
2. gas water-heater blower fan control as claimed in claim 1 and feeder loop, it is characterized in that gas water-heater is under the different operating state, single-chip microcomputer (5) is from the corresponding different pwm control signal of PWM mouth (51) output, after rectification circuit (4) rectification, obtain constant voltage, control blower fan (1) running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201950795U CN201739207U (en) | 2010-05-18 | 2010-05-18 | Gas water heater fan control and feedback circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201950795U CN201739207U (en) | 2010-05-18 | 2010-05-18 | Gas water heater fan control and feedback circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739207U true CN201739207U (en) | 2011-02-09 |
Family
ID=43554483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201950795U Expired - Fee Related CN201739207U (en) | 2010-05-18 | 2010-05-18 | Gas water heater fan control and feedback circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739207U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183092A (en) * | 2011-03-07 | 2011-09-14 | 无锡和晶信息技术有限公司 | Method for controlling draught fan of cold vibration prevention gas water heater |
| CN102278820A (en) * | 2011-06-27 | 2011-12-14 | 浙江德意厨具有限公司 | Constant-temperature-type gas water heater control system with rapid and accurate temperature-regulating characteristic and control method |
| CN105180324A (en) * | 2015-09-30 | 2015-12-23 | 广州金关节能科技发展有限公司 | Multistage filtering and speed-regulating air feeder |
| CN108019955A (en) * | 2017-12-21 | 2018-05-11 | 樱花卫厨（中国）股份有限公司 | The control system of fan of gas water heater constant current output |
| CN109236697A (en) * | 2018-10-29 | 2019-01-18 | 安徽四创电子股份有限公司 | A kind of blower fan control system |
| CN109442730A (en) * | 2018-12-15 | 2019-03-08 | 成都前锋电子有限责任公司 | A kind of upper odd test gas instantaneous water heater |
| CN110081615A (en) * | 2019-04-26 | 2019-08-02 | 广东万家乐燃气具有限公司 | A kind of gas heater master controller, blower fan control system and gas heater |
-
2010
- 2010-05-18 CN CN2010201950795U patent/CN201739207U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183092A (en) * | 2011-03-07 | 2011-09-14 | 无锡和晶信息技术有限公司 | Method for controlling draught fan of cold vibration prevention gas water heater |
| CN102278820A (en) * | 2011-06-27 | 2011-12-14 | 浙江德意厨具有限公司 | Constant-temperature-type gas water heater control system with rapid and accurate temperature-regulating characteristic and control method |
| CN105180324A (en) * | 2015-09-30 | 2015-12-23 | 广州金关节能科技发展有限公司 | Multistage filtering and speed-regulating air feeder |
| CN105180324B (en) * | 2015-09-30 | 2017-12-01 | 广州金关节能科技发展有限公司 | Multistage filtering speed governing air inlet fan |
| CN108019955A (en) * | 2017-12-21 | 2018-05-11 | 樱花卫厨（中国）股份有限公司 | The control system of fan of gas water heater constant current output |
| CN109236697A (en) * | 2018-10-29 | 2019-01-18 | 安徽四创电子股份有限公司 | A kind of blower fan control system |
| CN109442730A (en) * | 2018-12-15 | 2019-03-08 | 成都前锋电子有限责任公司 | A kind of upper odd test gas instantaneous water heater |
| CN110081615A (en) * | 2019-04-26 | 2019-08-02 | 广东万家乐燃气具有限公司 | A kind of gas heater master controller, blower fan control system and gas heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20190518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |