CN202718892U - Draught fan with air volume regulating valve - Google Patents
Draught fan with air volume regulating valve Download PDFInfo
- Publication number
- CN202718892U CN202718892U CN 201220408027 CN201220408027U CN202718892U CN 202718892 U CN202718892 U CN 202718892U CN 201220408027 CN201220408027 CN 201220408027 CN 201220408027 U CN201220408027 U CN 201220408027U CN 202718892 U CN202718892 U CN 202718892U
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- CN
- China
- Prior art keywords
- air volume
- draught fan
- valve block
- regulating valve
- permanent magnet
- 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 a draught fan with an air volume regulating valve in the field of gas water heaters and gas heating water heaters. The draught fan comprises coils, a valve block, the air volume regulating valve, a draught fan body, a wind wheel and a motor. The air volume regulating valve is arranged on the air inlet end or the air outlet end of the draught fan body, and the coils, an iron core and a permanent magnet are arranged on the upper end of the air volume regulating valve. The valve block is arranged inside an expansion cavity and connected with the permanent magnet through a shaft. Along with changes of current in the coils, magnetism of the iron core changes, and therefore the valve block is driven to move vertically on a valve port and the effect of increasing or decreasing air volume is achieved. The draught fan with the air volume regulating valve is simple in structure and easy to control.
Description
Technical field:
The utility model relates to gas water-heater and the gas-heating water heater air quantity is regulated blower fan, more specifically says a kind of blower fan with volume damper.
Background technique:
In recent years, along with China's expanding economy, the quickening of urbanization process, people are to the pursuit of high-quality life, so that gas water-heater and gas-heating water heater present obvious growth trend, for the development of product provides excellent opportunity and huge space, the fuel gas buring technology is also taken advantage of a favourable situation and has been obtained further raising and perfect; Yet, the use of a large amount of gas utensils, the thermal efficiency and energy-conserving and environment-protective to product require more and more higher, therefore the fully premixed combustion technology has appearred, this technology is exactly after air and combustion gas are mixed in the premix chamber by a certain percentage fully, burn to burner again, the effectively consumption of energy saving, but use this Technology Need to use the speed-governing dc blower fan, this blower fan precision is high, complex structure, for overcoming these defectives, the utility model is developed a kind of blower fan with volume damper.
Summary of the invention:
Technical problem to be solved in the utility model provides a kind of blower fan with volume damper, and it can simplify product structure effectively, reduces manufacture cost.
The utility model technological scheme that adopts of dealing with problems is achieved in that the utility model comprises coil, valve block, volume damper, blower fan, wind wheel and motor; It is characterized in that: be mounted with volume damper at blower fan air intake or outlet air end; The volume damper upper end is provided with coil, iron core and permanent magnet, and the lower end is expansion cavity, and expansion cavity communicates with intake grill by valve port, be mounted with valve block in the expansion cavity, valve block connects with permanent magnet by axle, and the valve block lower end is mounted with lower spring, is mounted with upper spring between permanent magnet and the iron core; The diameter of valve port is the 25-65 millimeter, and the diameter of valve block is the 30-70 millimeter.
The utility model compared with the prior art, beneficial effect is embodied in:
1, the utility model is mounted with volume damper at blower fan air intake or outlet air end; The volume damper upper end is provided with coil and iron core, is mounted with valve block in the expansion cavity, and along with the variation of electric current in the coil, the magnetic on the iron core also changes, thereby the band moving valve plate moves up and down at valve port, to reach the effect that strengthens or reduce air quantity.
2, the utility model adopts coil, iron core and permanent magnet to make driver, and it is simple in structure, easily control.
3. the utility model does not need special automatical control system and speed-governing dc blower fan, just can reach the purpose of regulating air quantity, effectively reduces manufacture cost, improves reliability.
Description of drawings:
Figure is the utility model structural representation;
Embodiment:
By the following examples, by reference to the accompanying drawings the utility model is further described;
Description of reference numerals: 1-coil, 2-upper spring, 3-intake grill, 4-valve block, 5-volume damper, 6-expansion cavity, 7-blower fan, 8-wind wheel, 9-motor, 10-exhaust outlet, 11-lower spring, 12-valve port, 13-axle, 14-permanent magnet, 15-iron core;
Embodiment: referring to accompanying drawing; The utility model comprises coil (1), valve block (4), volume damper (5), blower fan (7), wind wheel (8) and motor (9); Be mounted with volume damper (5) at blower fan (7) air intake; Volume damper (5) upper end is provided with coil (1), iron core (15) and permanent magnet (14), and the lower end is expansion cavity (6); Expansion cavity (6) communicates with intake grill (3) by valve port (12), is mounted with valve block (4) in the expansion cavity (5); Valve block (4) connects with permanent magnet (14) by axle (13), valve block (4) lower end is mounted with lower spring (11), be mounted with upper spring (2) between permanent magnet (14) and the iron core (15), the diameter of valve port (12) is 45 millimeters, and the diameter of valve block (4) is 50 millimeters.
When coil (1) is switched on, iron core (15) in the middle of the coil (1) produces a magnetic force, this magnetic force is just in time same with permanent magnet (14) Magnetic Phase of volume damper (5) upper end, principle according to two like magnetic poles repel each other, permanent magnet (14) moves down, lower mobile by axle (13) band moving valve plate (4) simultaneously, by changing coil (1) size of current, increase or reduce the magnetic force of iron core (15), with the repulsive force of permanent magnet (14), reach the gap that changes between valve block (4) and the valve port (12); Blower fan (7) is when work, motor (9) drives wind wheel (8) rotation and produces negative pressure, wind enters (direction of arrow) from intake grill (3), enter blower fan (7) through valve port (12), flow out from exhaust outlet (10), change according to the gap between valve block (4) and the valve port (12), air quantity also changes, thereby finishes the purpose of regulating air volume.
Claims (3)
1. the blower fan with volume damper includes coil, valve block, volume damper, blower fan, wind wheel, motor, permanent magnet and iron core; It is characterized in that: be mounted with volume damper at blower fan air intake or outlet air end; The volume damper upper end is provided with coil, iron core and permanent magnet, and the lower end is expansion cavity, and expansion cavity communicates with intake grill by valve port; Be mounted with valve block in the expansion cavity, valve block connects with permanent magnet by axle.
2. a kind of blower fan with volume damper according to claim 1, it is characterized in that: the valve block lower end is mounted with lower spring, is mounted with upper spring between permanent magnet and the iron core.
3. a kind of blower fan with volume damper according to claim 1, it is characterized in that: the diameter of valve port is the 25-65 millimeter; The diameter of valve block is the 30-70 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408027 CN202718892U (en) | 2012-08-12 | 2012-08-12 | Draught fan with air volume regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408027 CN202718892U (en) | 2012-08-12 | 2012-08-12 | Draught fan with air volume regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718892U true CN202718892U (en) | 2013-02-06 |
Family
ID=47620716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220408027 Expired - Fee Related CN202718892U (en) | 2012-08-12 | 2012-08-12 | Draught fan with air volume regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718892U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545787A (en) * | 2016-02-01 | 2016-05-04 | 江阴市精亚风机有限公司 | Impeller built-in type air volume adjusting device |
| CN112727690A (en) * | 2021-01-18 | 2021-04-30 | 南京凯盛国际工程有限公司 | Stepless automatic air quantity balance valve |
| CN115164417A (en) * | 2022-08-05 | 2022-10-11 | 宁波方太厨具有限公司 | Control method of gas water heater, gas water heater and storage medium |
-
2012
- 2012-08-12 CN CN 201220408027 patent/CN202718892U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545787A (en) * | 2016-02-01 | 2016-05-04 | 江阴市精亚风机有限公司 | Impeller built-in type air volume adjusting device |
| CN112727690A (en) * | 2021-01-18 | 2021-04-30 | 南京凯盛国际工程有限公司 | Stepless automatic air quantity balance valve |
| CN115164417A (en) * | 2022-08-05 | 2022-10-11 | 宁波方太厨具有限公司 | Control method of gas water heater, gas water heater and storage medium |
| CN115164417B (en) * | 2022-08-05 | 2024-04-12 | 宁波方太厨具有限公司 | Control method of gas water heater, gas water heater and storage medium |
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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: 20130206 Termination date: 20140812 |
|
| EXPY | Termination of patent right or utility model |