CN206071917U - The quiet blower fan of gas heater - Google Patents
The quiet blower fan of gas heater Download PDFInfo
- Publication number
- CN206071917U CN206071917U CN201621067185.9U CN201621067185U CN206071917U CN 206071917 U CN206071917 U CN 206071917U CN 201621067185 U CN201621067185 U CN 201621067185U CN 206071917 U CN206071917 U CN 206071917U
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- China
- Prior art keywords
- blower fan
- impeller
- spiral case
- blade
- gas heater
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Abstract
This utility model provides a kind of quiet blower fan of gas heater, including spiral case, impeller and motor, the impeller is in spiral case, the motor is fixed in spiral case and is connected with the impeller, and the impeller is provided with some blades, and the spiral case is provided with tongue, the blade is circular arc, the blade is provided with convex surface, and the direction of rotation convex surface facing impeller, the tongue of the spiral case are provided with a protuberance.Blade of the present utility model is circular-arc-shaped design, and convex surface facing the direction of rotation of impeller, it is possible to reduce the resistance of airflow reflux and air-flow between blade, be conducive to air-flow to flow out blower fan, reduce the noise of blower fan；The another tongue in spiral case is additionally provided with the backflow that a protuberance further reduces air outlet air-flow, beneficial to the smooth discharge of air outlet air-flow, reduce further the noise of blower fan, improves the comfortableness that consumer uses.
Description
Technical field
This utility model is related to the blower fan of gas heater, and in particular to a kind of steam water heater with mute function is used
Blower fan.
Background technology
What present gas heater great majority were adopted is all Forced discharge fan, and such blower fan is general all by motor, impeller, snail
A few part compositions of shell.Operationally, the blower interior of gas heater can produce backflow, turbulent flow phenomenon, cause fan outlet
Air-flow discharges not smooth, the larger noise of generation, causes impact to the use of consumer.
Utility model content
In order to overcome drawbacks described above, this utility model to provide a kind of quiet blower fan of gas heater, the blower fan can be solved
Certainly at present backflow present in blower fan, turbulent flow phenomenon and the technical problem that causes fan noise big.
This utility model in order to solve the technical scheme adopted by its technical problem is：A kind of quiet wind of gas heater
Machine, including spiral case, impeller and motor, in spiral case, the motor is fixed in spiral case and is connected with the impeller impeller
Connect, the impeller is provided with some blades, the spiral case is provided with tongue, the blade is circular arc, the blade is provided with convex surface, institute
The direction of rotation convex surface facing impeller is stated, the tongue of the spiral case is provided with a protuberance.
Preferably, the impeller also includes a upper plate and a base plate, and described blade one end is fixed on base plate, and the other end is solid
It is scheduled on upper plate.
Preferably, fixed by riveting between the blade and upper plate.
Preferably, fixed by riveting between the blade and base plate.
Preferably, centre bore is provided with the middle part of the base plate.
Preferably, described some blades are angularly uniformly distributed in its surrounding by the center of circle of the centre bore of the base plate.
Preferably, the spiral case also includes front snail plate, circumferential shell and rear snail plate, after the motor fixation on snail plate, circumferential
Shell is provided with air outlet, and the tongue is arranged on air outlet.
The beneficial effects of the utility model are：The blade of the quiet blower fan of this utility model gas heater is set for circular arc
Meter, and the direction of rotation convex surface facing impeller of blade, such design can reduce the leaf in motor operation course
The resistance of the backflow of air-flow and air-flow between piece, flows out blower fan with being conducive to airflow smooth, so as to reduce due to air-flow and stream
The noise of friction and the blower fan for resonating and producing between road；Volute tongue in blower fan is additionally provided with a protuberance in addition, and this is dashed forward
Go out the design in portion beneficial to the smooth discharge of air outlet air-flow, while reducing the backflow of air outlet air-flow, reduce further
The noise of blower fan, improves the comfortableness that consumer uses.
Description of the drawings
Top views of the Fig. 1 for the quiet blower fan of this utility model gas heater；
Upward views of the Fig. 2 for the quiet blower fan of this utility model gas heater；
Fig. 3 is the axonometric chart of impeller in this utility model；
Profiles of the Fig. 4 for the quiet blower fan of this utility model gas heater.
In figure：1- spiral cases, 11- tongues, 111- protuberances, 2- impellers, 21- blades, 211- convex surfaces, 22- upper plates, 23- bottoms
Plate, 231- centre bores, 3- motors.
Specific embodiment
Below in conjunction with this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than the embodiment of whole.
Based on the embodiment in this utility model, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of this utility model protection.
As shown in accompanying drawing 1,2,3 and 4, a kind of quiet blower fan of gas heater, including spiral case 1, impeller 2 and motor 3, institute
Impeller 2 is stated in spiral case 1, the motor 3 is fixed in spiral case and is connected with the impeller 2, and the impeller 2 is provided with some
Blade 21, the spiral case 1 are provided with tongue 11, and the blade 21 is circular arc, and the blade is provided with convex surface 211, the convex surface 211
Towards the direction of rotation of impeller 2, the tongue 11 of the spiral case 1 is provided with a protuberance 111.Blade 21 is circular-arc-shaped design, and convex
Direction of rotation of the face 211 towards impeller, it is possible to reduce the resistance of airflow reflux and air-flow between blade, is conducive to air-flow to flow out wind
Machine, reduces the noise of blower fan；Tongue 11 in spiral case 1 is additionally provided with a protuberance 111 and further reduces air outlet air-flow in addition
Backflow, beneficial to the smooth discharge of air outlet air-flow, reduce further the noise of blower fan, improve that consumer uses is comfortable
Property.
As shown in figure 3, wherein the impeller 2 also includes a upper plate 22 and a base plate 23,21 one end of the blade is fixed on
On base plate 23, the other end is fixed on upper plate 22, is fixed by riveting between the blade 21 and upper plate 22, the blade 21 with
Fixed by riveting between base plate 23.Centre bore 231 is provided with the middle part of the base plate 23.The centre bore 231 being provided with can be inserted in
3 rotating shaft of the motor, so as to motor is connected with impeller, then impeller is rotated electric motor starting.Described some blades 21 with
The centre bore 231 of the base plate 23 is angularly uniformly distributed in its surrounding for the center of circle.
Wherein spiral case 1 also includes front snail plate, circumferential shell and rear snail plate, after the fixation of the motor 3 on snail plate, sets on circumferential shell
There is air outlet, the tongue 11 is arranged on air outlet.
Operation principle of the present utility model is：After blower fan is started, by electric motor with vane wheel high-speed rotation, because blade is circular arc
Shape, and its convex surface is directed towards the direction of rotation of impeller, therefore the resistance of air-flow is reduced while reducing air-flow between blade
Backflow, is conducive to air-flow to flow out blower fan, so as to reduce the blower fan produced because of the friction between air-flow and runner and resonance
Noise；When air-flow is flowed out from air outlet, because the volute tongue in blower fan is provided with a protuberance, the design of the protuberance is beneficial to
The smooth discharge of air port air-flow, while reducing the backflow of air outlet air-flow, reduce further the noise of blower fan.
It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility,
Some deformations and improvement can also be made, these belong to protection domain of the present utility model.Therefore, this utility model patent
Protection domain should be defined by claims.
Claims (7)
1. the quiet blower fan of a kind of gas heater, including spiral case (1), impeller (2) and motor (3), the impeller (2) is located at snail
In shell (1), the motor (3) is fixed in spiral case and is connected with the impeller (2), and the impeller (2) is provided with some blades
(21), the spiral case (1) is provided with tongue (11), it is characterised in that：The blade (21) is circular arc, and the blade is provided with convex surface
(211), direction of rotation of the convex surface (211) towards impeller (2), the tongue (11) of the spiral case (1) are provided with a protuberance
(111)。
2. the quiet blower fan of gas heater according to claim 1, it is characterised in that：The impeller (2) also includes one
Upper plate (22) and a base plate (23), described blade (21) one end are fixed on base plate (23), and the other end is fixed on upper plate (22).
3. the quiet blower fan of gas heater according to claim 2, it is characterised in that：The blade (21) and upper plate
(22) fixed by riveting between.
4. the quiet blower fan of gas heater according to claim 2, it is characterised in that：The blade (21) and base plate
(23) fixed by riveting between.
5. the quiet blower fan of gas heater according to claim 2, it is characterised in that：At the middle part of the base plate (23)
It is provided with centre bore (231).
6. the quiet blower fan of gas heater according to claim 5, it is characterised in that：Described some blades (21) with
The centre bore (231) of the base plate (23) is angularly uniformly distributed in its surrounding for the center of circle.
7. the quiet blower fan of gas heater according to claim 1, it is characterised in that：The spiral case (1) also includes front
Snail plate, circumferential shell and rear snail plate, after the motor (3) is fixed on snail plate, circumferential shell is provided with air outlet, and the tongue (11) sets
Put on air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067185.9U CN206071917U (en) | 2016-09-21 | 2016-09-21 | The quiet blower fan of gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067185.9U CN206071917U (en) | 2016-09-21 | 2016-09-21 | The quiet blower fan of gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206071917U true CN206071917U (en) | 2017-04-05 |
Family
ID=58439718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621067185.9U Active CN206071917U (en) | 2016-09-21 | 2016-09-21 | The quiet blower fan of gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206071917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441986A (en) * | 2020-04-03 | 2020-07-24 | 常熟市斯佳登电器有限公司 | Impeller for fan type gas water heater |
-
2016
- 2016-09-21 CN CN201621067185.9U patent/CN206071917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441986A (en) * | 2020-04-03 | 2020-07-24 | 常熟市斯佳登电器有限公司 | Impeller for fan type gas water heater |
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