CN110207397A - Fan gear speed regulating circuit, fan assembly applying same and gas water heater - Google Patents
Fan gear speed regulating circuit, fan assembly applying same and gas water heater Download PDFInfo
- Publication number
- CN110207397A CN110207397A CN201811515154.9A CN201811515154A CN110207397A CN 110207397 A CN110207397 A CN 110207397A CN 201811515154 A CN201811515154 A CN 201811515154A CN 110207397 A CN110207397 A CN 110207397A
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- Prior art keywords
- assembly
- blower
- water
- relay
- fan
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 230000001105 regulatory effect Effects 0.000 title description 2
- 238000004804 winding Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 24
- 239000000446 fuel Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000567 combustion gas Substances 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a fan gear-shifting speed regulation circuit which comprises a power transformer T and a relay switching module K, wherein the input side of the power transformer T is connected with the relay switching module K, and the output end of the relay switching module K is connected with a fan; the primary winding of the power transformer T draws out at least one tap end T1, and the tap end T1 is connected with the relay switching module K and used for outputting different voltages through the relay switching module K, wherein the different voltages correspond to different rotating speeds of the fan; the invention also discloses a fan component and a gas water heater; according to the invention, the primary winding of the power transformer is tapped to output different voltages, and the multiple relays are switched to drive the fan with a single gear, so that the adjustment of the multi-gear wind speed of the fan in the gas water heater is realized.
Description
Technical field
The invention belongs to gas heater technical fields, and in particular to a kind of blower stepping alignment circuit, the wind using it
Thermomechanical components and gas heater.
Background technique
Gas water heater working has different needs air quantity in different load conditions, that is, requires blower can be on demand
It is adjusted the speed.
There are mainly two types of modes for the fan speed regulation method of gas heater at present: first, the tapped speed regulation of machine winding, this
Kind mode is more demanding to motor manufacturing technology, and winding and connector are more, and winding mode is complicated, and reliability is low, and turn-to-turn is exhausted
Edge degradation；Second, silicon-controlled chopping regulating speed, the driving voltage of adjustable virtual value is exported using silicon-controlled copped wave, driving is single
Fast blower realizes speed regulation, and this mode will generate the voltage and current of mutation, will cause the mechanical noise of motor, and radiate larger
Electromagnetic interference, and silicon-controlled category semiconductor devices, for relative mechanical switch, Surge handling capability is lower, is easily damaged.
Summary of the invention
The object of the present invention is to provide a kind of blower stepping alignment circuits, by taking out to power transformer primary side winding
Head realizes that multi gear wind speed is adjusted.
It is a further object to provide the fan assemblies for having above-mentioned blower stepping alignment circuit.
It is a further object to provide the gas heaters for having above-mentioned fan assembly.
The technical scheme adopted by the invention is that a kind of blower stepping alignment circuit comprising power transformer T and after
The input side of electric appliance switching module K, the power transformer T are connect with relay switching module K, the relay switching module
The output end of K is connected with blower；The power transformer T primary side winding extracts at least one tap terminals T1, the tap terminals T1 out
It is connect with relay switching module K, for exporting different voltage, the different voltage by relay switching module K
The different revolving speed of corresponding blower.
The features of the present invention also characterized in that
The relay switching module K includes the first relay K1 and the second relay K2, the power transformer T's
Zero line is connect with the normally opened contact of the second relay K2, the zero line side of the power transformer T and the first relay K1 and
The normally-closed contact of two relay K2 connects, and the tap terminals T1 is connect with the normally opened contact of the first relay K1.
A kind of fan assembly comprising above-mentioned blower windscreen alignment circuit and blower, the blower windscreen speed regulation electricity
Road is connected with blower for making blower realize different revolving speeds.
A kind of gas heater comprising above-mentioned fan assembly, control assembly, fuel assembly, heat exchanger assembly and
Water heater housing, the fan assembly, control assembly, fuel assembly and heat exchanger assembly are arranged in water heater housing, institute
It states heat exchanger assembly to be located above fuel assembly, the fan assembly is connected to fuel assembly, the control assembly and blower fan group
Part is connected for the revolving speed according to the big minor adjustment blower of water heater heating load.
The heat exchanger assembly includes water supply connector, coil pipe, heat exchanger, temperature controller and water outlet connector, the coil pipe ring
It is arranged around heat exchanger outer wall, and one end is connected by pipeline with water supply connector, the other end is connected by pipeline with water outlet connector,
The end that coil pipe is arranged in the temperature controller is used to the water temperature of detection and will test result feed back to control assembly, when the control
Control assembly control water heater power supply cutting when the received water temperature of component is greater than water temperature threshold value.
Water flow sensor, the water flow sensor detection are provided on the pipeline that the coil pipe is connected with water supply connector
Water flow size simultaneously will test structural feedback to control assembly.
Temperature sensor, the temperature sensor detection water outlet are provided on the pipeline that the coil pipe is connected with water outlet connector
Temperature simultaneously will test structural feedback to control assembly.
The fuel assembly includes inlet suction port, proportioning valve, sectioning valve and burner, the proportioning valve and inlet suction port
Connection is used for adjustment of combustion gas flow, and the proportioning valve is connected by sectioning valve with burner.
The fan assembly further comprises wind pressure sensor, and the wind pressure sensor, which is located at the exhaust outlet of blower, to be used for
Wind pressure is detected, and will test structural feedback to control assembly.
Smoke pipe fitting is provided at the top of the water heater housing, the smoke pipe fitting is connected to for that will burn with fuel assembly
When generate exhaust gas discharge.
Compared with prior art, for the present invention in use, by carrying out tap to power transformer primary side winding, output is different
Voltage, switched over by multiple relays, drive single gear blower, realize that multi gear wind speed is adjusted.
Detailed description of the invention
Fig. 1 is that the embodiment of the present invention 1 provides a kind of circuit diagram of blower stepping alignment circuit；
Fig. 2 is that the embodiment of the present invention 3 provides a kind of structural schematic diagram of gas heater.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention 1 provides a kind of blower stepping alignment circuit, as shown in Figure 1 comprising power transformer T and
The input side of relay switching module K, the power transformer T are connect with relay switching module K, and the relay switches mould
The output end of block K is connected with blower；The power transformer T primary side winding extracts at least one tap terminals T1, the tap terminals out
T1 is connect with relay switching module K, for exporting different voltage, the different electricity by relay switching module K
The revolving speed for pressing corresponding blower different；
When the relay switching module K includes two relays, i.e. the first relay K1 and the second relay K2,
The zero line of the power transformer T is connect with the normally opened contact of the second relay K2, the zero line side of the power transformer T with
The connection of the normally-closed contact of first relay K1 and the second relay K2, the normally opened contact of the tap terminals T1 and the first relay K1
Connection；
In this way, there are four types of combination between the first relay K1 and the second relay K2, thus obtain four kinds it is different
Driving voltage, corresponding four kinds of different revolving speeds realize top grade, middle-grade, low grade and lock catch, specific as shown in table 1:
Table 1
The course of work: the state and relevant voltage of each relay, the voltage of realization in switching relay switching module K
Output, and then realize different revolving speed and gear.
Compared with prior art, the present invention by power transformer primary side winding carry out tap, export different voltage,
It is switched over by multiple relays, drives single gear blower, realize that multi gear wind speed is adjusted.
The embodiment of the present invention 2 provides a kind of fan assembly comprising the blower windscreen alignment circuit and blower of embodiment 1
11, the blower windscreen alignment circuit and the connection of blower 11 are for making blower 11 realize different revolving speeds；In this way, by blower windscreen
Alignment circuit is applied on blower 11, can control the revolving speed of blower 11.
The embodiment of the present invention 3 provides a kind of gas heater, as shown in Figure 2 comprising the fan assembly 1 of embodiment 2, control
Component 2, fuel assembly 3, heat exchanger assembly 4 and water heater housing 5 processed, the fan assembly 1, control assembly 2, fuel assembly
3 and heat exchanger assembly 4 be arranged in water heater housing 5, the heat exchanger assembly 4 is located at the top of fuel assembly 3, the blower
Component 1 is connected to fuel assembly 3, and the control assembly 2 and the connection of fan assembly 1 are for according to the big ditty of water heater heating load
Save the revolving speed of blower 11；
In this way, using the above structure, when gas water heater working, control assembly 2 is according to the size of heating load, automatic
The revolving speed of air distribution thermomechanical components 1 is realized with this and air of optimised quantity is passed through in fuel assembly 3, and optimal air-fuel ratio is reached.
The heat exchanger assembly 4 includes water supply connector 41, coil pipe 42, heat exchanger 43, temperature controller 44 and water outlet connector 45,
The coil pipe 42 is arranged around 43 outer wall of heat exchanger, and one end is connected by pipeline and water supply connector 41, and the other end passes through pipe
Road and water outlet connector 45 connect, and the end of coil pipe 42 is arranged in for the water temperature of detection for the temperature controller 44 and to will test result anti-
It is fed to control assembly 2, control assembly 2 controls water heater power supply when the received water temperature of the control assembly 2 is greater than water temperature threshold value
Cutting；
In this way, cold water enters in coil pipe 42 through water supply connector 41, since coil pipe 42 is around 43 outer wall of heat exchanger and to be threaded back through
Inner fins are inserted, so that flowing water in pipe is absorbed 3 heat of fuel assembly, realizes heating；Also, 42 output end of coil pipe is equipped with temperature controller
44, for monitoring the water temperature after heating, when water temperature over-high, to avoid unexpected generation, control assembly 2 controls dump to combustion
Burner makes protection.
Water flow sensor 46, the water flow sensing are provided on the pipeline that the coil pipe 42 and water supply connector 41 connect
Device 46 detects water flow size and will test structural feedback to control assembly 2；The pipe that the coil pipe 42 and water outlet connector 45 connect
Road is provided with temperature sensor 47, and the temperature sensor detects leaving water temperature and will test structural feedback to control assembly 2.
The fuel assembly 3 includes inlet suction port 31, proportioning valve 32, sectioning valve 33 and burner 34, the proportioning valve
32 and the connection of inlet suction port 31 be used for adjustment of combustion gas flow, the proportioning valve 32 is connected by sectioning valve 33 and burner 34；
In this way, combustion gas originates in inlet suction port 31, realize that the adjusting to throughput, combustion gas pass through ratio by proportioning valve 32
Valve 32 flows to directly or by sectioning valve 33 nozzle in burner in output end indirectly, mixes with air, is controlling after ejection
It burns under the control of component 2.
The also built-in shut-off valve of proportioning valve 32, for cutting off blast tube.
The fan assembly 1 further comprises wind pressure sensor 12, and the wind pressure sensor 12 is located at the air draft of blower 11
For detecting to wind pressure at mouthful, and it will test structural feedback to control assembly 2；In this way, and when outdoor downdraught occurs,
The gear for limitedly improving blower, extends the working environment adaptability of water heater.
Smoke pipe fitting 51 is provided at the top of the water heater housing 5, the smoke pipe fitting 51 is connected to fuel assembly 3, this
Sample, the exhaust gas generated when by burning avoid the pollution to environment by 51 uniform effluent of smoke pipe fitting.
The course of work: combustion gas originates in inlet suction port 31, realizes that the adjusting to throughput, combustion gas pass through by proportioning valve 32
Proportioning valve 32 flows to directly or by sectioning valve 33 nozzle in burner in output end indirectly, mentions after ejection with fan assembly 1
The air of confession mixes, and forms flammable mixed gas；Cold water enters in coil pipe 42 through water supply connector 41, changes since coil pipe 42 is surround
Hot 43 outer wall of device simultaneously interts inner fins back and forth, so that flowing water in pipe is absorbed the heat generated when mixed gas burning, realizes to water
Heating；In the whole process, size of the control assembly 2 according to heating load, the revolving speed of Auto-matching fan assembly 1, with this
The air of optimised quantity is passed through in fuel assembly 3 by realization, reaches optimal air-fuel ratio.
The present embodiment exports different voltage, passes through multiple relays by carrying out tap to power transformer primary side winding
Device switches over, and drives single gear blower, realizes that AC blower fan component multi gear wind speed is adjusted, and makes gas heater is current to bear
Lotus amount and air quantity reach optimal proportion, realize the best combustion effect of gas heater.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of blower stepping alignment circuit, which is characterized in that it includes power transformer T and relay switching module K, institute
The input side for stating power transformer T is connect with relay switching module K, the output end and blower of the relay switching module K
Connection；The power transformer T primary side winding extracts at least one tap terminals T1 out, and the tap terminals T1 switches mould with relay
Block K connection, for exporting different voltage by relay switching module K.
2. a kind of blower stepping alignment circuit according to claim 1, which is characterized in that the relay switching module K
It is normally opened with the second relay K2's including the first relay K1 and the second relay K2, the zero line of the power transformer T
Contact connection, the zero line side of the power transformer T are connect with the normally-closed contact of the first relay K1 and the second relay K2, institute
Tap terminals T1 is stated to connect with the normally opened contact of the first relay K1.
3. a kind of fan assembly, which is characterized in that it include the described in any item blower windscreen alignment circuits of claim 1-2 with
And blower (11), the blower windscreen alignment circuit and blower (11) connection are for making blower (11) to realize different revolving speeds.
4. a kind of gas heater, which is characterized in that it include fan assembly as claimed in claim 3 (1), control assembly (2),
Fuel assembly (3), heat exchanger assembly (4) and water heater housing (5), the fan assembly (1), control assembly (2), burning group
Part (3) and heat exchanger assembly (4) are arranged in water heater housing (5), and the heat exchanger assembly (4) is located at fuel assembly (3)
Top, the fan assembly (1) are connected to fuel assembly (3), and the control assembly (2) and fan assembly (1) connection are used for root
According to the revolving speed of the big minor adjustment blower (11) of water heater heating load.
5. a kind of gas heater according to claim 4, which is characterized in that the heat exchanger assembly (4) includes water inlet
Connector (41), coil pipe (42), heat exchanger (43), temperature controller (44) and water outlet connector (45), the coil pipe (42) is around heat exchange
The setting of device (43) outer wall, and one end is connected by pipeline and water supply connector (41), the other end passes through pipeline and water outlet connector
(45) it connects, temperature controller (44) setting is used to the water temperature of detection and will test result feed back to control in the end of coil pipe (42)
Component (2) processed, when the control assembly (2) received water temperature is greater than water temperature threshold value, control assembly (2) controls water heater power supply
Cutting.
6. a kind of gas heater according to claim 5, which is characterized in that the coil pipe (42) and water supply connector (41)
It is provided on the pipeline of connection water flow sensor (46), the water flow sensor (46) is detected water flow size and be will test
Structural feedback is to control assembly (2).
7. a kind of gas heater according to claim 6, which is characterized in that the coil pipe (42) and water outlet connector (45)
It is provided on the pipeline of connection temperature sensor (47), the temperature sensor detects leaving water temperature and will test structural feedback extremely
Control assembly (2).
8. a kind of gas heater according to claim 7, which is characterized in that the fuel assembly (3) includes air inlet connecting
Head (31), proportioning valve (32), sectioning valve (33) and burner (34), the proportioning valve (32) and inlet suction port (31) connection are used
In adjustment of combustion gas flow, the proportioning valve (32) is connected by sectioning valve (33) and burner (34).
9. according to a kind of described in any item gas heaters of claim 4-8, which is characterized in that the fan assembly (1) into
One step includes wind pressure sensor (12), and the wind pressure sensor (12) is located at the exhaust outlet of blower (11) for carrying out to wind pressure
Detection, and will test structural feedback to control assembly (2).
10. a kind of gas heater according to claim 9, which is characterized in that setting at the top of the water heater housing (5)
Have smoke pipe fitting (51), the smoke pipe fitting (51) is connected to the exhaust gas discharge for generating when will burn with fuel assembly (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515154.9A CN110207397B (en) | 2018-12-12 | 2018-12-12 | Fan step speed regulation circuit, fan assembly using same and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515154.9A CN110207397B (en) | 2018-12-12 | 2018-12-12 | Fan step speed regulation circuit, fan assembly using same and gas water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110207397A true CN110207397A (en) | 2019-09-06 |
| CN110207397B CN110207397B (en) | 2023-11-10 |
Family
ID=67780068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811515154.9A Active CN110207397B (en) | 2018-12-12 | 2018-12-12 | Fan step speed regulation circuit, fan assembly using same and gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110207397B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140527A (en) * | 2019-12-23 | 2020-05-12 | 华帝股份有限公司 | Control method and control system for stable operation of fan |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485583Y (en) * | 2001-01-20 | 2002-04-10 | 广东华帝集团有限公司 | Multifunctional gas water heater |
| CN1607363A (en) * | 2003-10-15 | 2005-04-20 | 中山华帝燃具股份有限公司 | Domestic gas instantaneous water heater capable of realizing gas-air proportional control |
| CN1668159A (en) * | 2005-02-03 | 2005-09-14 | 程涛 | Intelligent electricity-saving device for lighting supply source |
| CN101067508A (en) * | 2007-06-06 | 2007-11-07 | 中国扬子集团滁州扬子空调器有限公司 | Low-voltage working fixed speed air conditioner and control method thereof |
| US20100060215A1 (en) * | 2008-09-08 | 2010-03-11 | Emerson Electric Co. | Blower motor for hvac systems |
| TW201122377A (en) * | 2009-12-31 | 2011-07-01 | Yi-Zhen Fan | Automatic balance system for heat pump hot water air conditioning device. |
| CN203135790U (en) * | 2013-04-02 | 2013-08-14 | 樱花卫厨（中国）股份有限公司 | Automatic pressure adjusting system of range hood blower fan |
| CN203258880U (en) * | 2013-05-21 | 2013-10-30 | 秦应雨 | Fuel gas intelligent controller |
| CN103606927A (en) * | 2013-12-01 | 2014-02-26 | 福建阳谷智能技术有限公司 | Novel single-phase voltage regulating and transforming system |
| JP2016208640A (en) * | 2015-04-21 | 2016-12-08 | 東北電力株式会社 | Voltage adjusting device |
| CN206440016U (en) * | 2017-01-13 | 2017-08-25 | 广东万家乐燃气具有限公司 | A kind of the strong of DC frequency-changing blower fan structure takes out condensation water heater |
| CN107367069A (en) * | 2017-06-30 | 2017-11-21 | 邹彦双 | A kind of air-source water heater voltage regulating and controlling circuit |
| CN209689203U (en) * | 2018-12-12 | 2019-11-26 | 华帝股份有限公司 | Fan gear speed regulating circuit, fan assembly applying same and gas water heater |
-
2018
- 2018-12-12 CN CN201811515154.9A patent/CN110207397B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485583Y (en) * | 2001-01-20 | 2002-04-10 | 广东华帝集团有限公司 | Multifunctional gas water heater |
| CN1607363A (en) * | 2003-10-15 | 2005-04-20 | 中山华帝燃具股份有限公司 | Domestic gas instantaneous water heater capable of realizing gas-air proportional control |
| CN1668159A (en) * | 2005-02-03 | 2005-09-14 | 程涛 | Intelligent electricity-saving device for lighting supply source |
| CN101067508A (en) * | 2007-06-06 | 2007-11-07 | 中国扬子集团滁州扬子空调器有限公司 | Low-voltage working fixed speed air conditioner and control method thereof |
| US20100060215A1 (en) * | 2008-09-08 | 2010-03-11 | Emerson Electric Co. | Blower motor for hvac systems |
| TW201122377A (en) * | 2009-12-31 | 2011-07-01 | Yi-Zhen Fan | Automatic balance system for heat pump hot water air conditioning device. |
| CN203135790U (en) * | 2013-04-02 | 2013-08-14 | 樱花卫厨（中国）股份有限公司 | Automatic pressure adjusting system of range hood blower fan |
| CN203258880U (en) * | 2013-05-21 | 2013-10-30 | 秦应雨 | Fuel gas intelligent controller |
| CN103606927A (en) * | 2013-12-01 | 2014-02-26 | 福建阳谷智能技术有限公司 | Novel single-phase voltage regulating and transforming system |
| JP2016208640A (en) * | 2015-04-21 | 2016-12-08 | 東北電力株式会社 | Voltage adjusting device |
| CN206440016U (en) * | 2017-01-13 | 2017-08-25 | 广东万家乐燃气具有限公司 | A kind of the strong of DC frequency-changing blower fan structure takes out condensation water heater |
| CN107367069A (en) * | 2017-06-30 | 2017-11-21 | 邹彦双 | A kind of air-source water heater voltage regulating and controlling circuit |
| CN209689203U (en) * | 2018-12-12 | 2019-11-26 | 华帝股份有限公司 | Fan gear speed regulating circuit, fan assembly applying same and gas water heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140527A (en) * | 2019-12-23 | 2020-05-12 | 华帝股份有限公司 | Control method and control system for stable operation of fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110207397B (en) | 2023-11-10 |
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