CN206309649U - A kind of blower volute structure and apply its blower fan - Google Patents
A kind of blower volute structure and apply its blower fan Download PDFInfo
- Publication number
- CN206309649U CN206309649U CN201621126237.5U CN201621126237U CN206309649U CN 206309649 U CN206309649 U CN 206309649U CN 201621126237 U CN201621126237 U CN 201621126237U CN 206309649 U CN206309649 U CN 206309649U
- Authority
- CN
- China
- Prior art keywords
- wind
- guiding face
- sidepiece
- snail tongue
- face
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of blower volute structure and using its blower fan, the blower volute structure, including housing, cavity is formed in housing, housing is provided with the air inlet and air outlet connected with cavity, housing is provided with snail tongue at air outlet, wherein, the inner surface of the snail tongue is wind-guiding face, described wind-guiding face includes being located at middle wind-guiding face and the sidepiece wind-guiding face positioned at middle wind-guiding face both sides, the height of sidepiece wind-guiding face is higher than the height of middle wind-guiding face, described sidepiece wind-guiding face and middle wind-guiding face parallel arrangement.The utility model simple structure, middle wind-guiding face and the sidepiece wind-guiding face positioned at middle wind-guiding face both sides are set to by by the wind-guiding face of snail tongue, the height of sidepiece wind-guiding face is higher than the height of middle wind-guiding face, snail tongue two ends are made to be less than the distance between center section and wind wheel with the distance of wind wheel, and then the wind speed at snail tongue two ends is improve, make the wind speed of spiral case air outlet evenly；Make blower fan air-out efficiency high, noise is low.
Description
Technical field：
The utility model is related to a kind of blower volute structure and applies its blower fan.
Background technology：
Existing blower fan, including spiral case, motor and wind wheel in spiral case cavity, the rotating shaft of motor are pacified by bearing
Mounted in the air inlet of spiral case, wind wheel is arranged on motor housing, and the spiral case includes forming cavity, housing in housing, housing
The air inlet and air outlet connected with cavity are provided with, housing is provided with snail tongue at air outlet, and the inner surface of the snail tongue is in axle
It is generally upwards straight, but the fan noise of this structure is big, and air quantity efficiency is low.
The content of the invention：
The purpose of this utility model is to provide a kind of blower volute structure that can be reduced fan noise, improve air quantity efficiency
And apply its blower fan.
The purpose of this utility model is achieved by following technical proposals.
On the one hand the utility model provides a kind of blower volute structure, including housing, cavity is formed in housing, on housing
The air inlet and air outlet connected with cavity are provided with, housing is provided with snail tongue at air outlet, wherein, the inner surface of the snail tongue is
Wind-guiding face, described wind-guiding face includes being located at middle wind-guiding face and the sidepiece wind-guiding face positioned at middle wind-guiding face both sides, and sidepiece is led
The height in wind face is higher than the height of middle wind-guiding face, described sidepiece wind-guiding face and middle wind-guiding face parallel arrangement.
The centerline axis parallel of middle wind-guiding face described above and sidepiece wind-guiding face and the air inlet.
Middle wind-guiding face described above and sidepiece wind-guiding face are provided with rounding.
The length of the sidepiece wind-guiding face of side described above is 0.25~0.35 with the total length ratio of the snail tongue.
Seamlessly transitted between middle wind-guiding face described above and sidepiece wind-guiding face.
Transition face between middle wind-guiding face described above and sidepiece wind-guiding face is provided with circular arc chamfering.
Seamlessly transitted between sidepiece wind-guiding face described above and the inner surface of housing.
Snail tongue both sides described above are provided with lug, and snail tongue is fixed on the housing by lug.
On the other hand the utility model provides a kind of blower fan, including spiral case, motor and wind in spiral case cavity
Wheel, the rotating shaft of motor is arranged on the air inlet of spiral case by bearing, and wind wheel is arranged on motor housing, it is characterised in that：Institute
State spiral case and be provided with blower volute structure described above.
Sidepiece wind-guiding face described above and the difference in height of middle wind-guiding face and the external diameter ratio of the wind wheel for 0.01~
0.015。
The utility model compared with prior art, has the effect that：
1) the utility model simple structure, middle wind-guiding face is set to and positioned at middle wind-guiding by by the wind-guiding face of snail tongue
The sidepiece wind-guiding face of face both sides, the height of sidepiece wind-guiding face is higher than the height of middle wind-guiding face, make snail tongue two ends and wind wheel away from
From less than the distance between center section and wind wheel, and then the wind speed at snail tongue two ends is improve, make the wind speed of spiral case air outlet more
Uniformly；
2) improved by the structure to the spiral case, the wind speed of spiral case air outlet evenly, makes the air output of blower fan
Efficiency can be higher than existing blower fan by 1%~2%, reaches the effect of energy-conservation；In terms of noise, ear is listened can feel that blade is low by sound
A lot, level of noise also has obvious reduction.
Brief description of the drawings：
Fig. 1 is the stereogram of the volute of blower that the utility model embodiment one is provided；
Fig. 2 is the front view of the volute of blower that the utility model embodiment one is provided；
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is enlarged drawing at the C of Fig. 3；
Fig. 5 is the right view of the volute of blower that the utility model embodiment one is provided；
Fig. 6 is the B-B sectional views of Fig. 5；
Fig. 7 is enlarged drawing at the D of Fig. 6；
Fig. 8 is the structural representation of snail tongue in the volute of blower that the utility model embodiment one is provided；
Fig. 9 is the stereogram of the blower fan that the utility model embodiment two is provided；
Figure 10 is the characteristic curve comparison diagram of blower fan described in the utility model embodiment two and existing blower fan.
Specific embodiment：
The utility model is described in further detail below by specific embodiment and with reference to accompanying drawing.
Embodiment one：
As shown in Figures 1 to 8, the present embodiment provides a kind of blower volute structure, including housing 10, shape in housing 10
Into cavity 11, housing 10 is provided with the air inlet 12 and air outlet 13 connected with cavity 11, and housing 10 is provided with air outlet 13
Snail tongue 15, wherein, the inner surface of the snail tongue 15 is wind-guiding face 150, and described wind-guiding face 150 includes being located at middle wind-guiding face
151 and the sidepiece wind-guiding face 152 positioned at the both sides of middle wind-guiding face 151, the height of sidepiece wind-guiding face 152 is than middle wind-guiding face 151
Height it is high, described sidepiece wind-guiding face 152 and the middle parallel arrangement of wind-guiding face 151.
The utility model simple structure, in the wind-guiding face 150 of snail tongue 15 is set to middle wind-guiding face 151 and is located at
Between the both sides of wind-guiding face 151 sidepiece wind-guiding face 152, the height of sidepiece wind-guiding face 152 is higher than the height of middle wind-guiding face 151, makes
The two ends of snail tongue 15 are less than the distance between the center section of snail tongue 15 and wind wheel 2 with the distance of wind wheel 2, and then improve 15 liang of snail tongue
The wind speed at end, makes the wind speed of spiral case air outlet 13 evenly.
Middle wind-guiding face 151 described above and sidepiece wind-guiding face 152 are parallel with the central axis L of the air inlet 12.
Above-mentioned institute's middle wind-guiding face 151 and sidepiece wind-guiding face 152 are provided with rounding 155.
The length b of the sidepiece wind-guiding face 152 of side described above is b with the total length a ratios of the snail tongue 15：A=0.25
~0.35.
Seamlessly transitted between middle wind-guiding face 151 described above and sidepiece wind-guiding face 152.
Transition face 153 between middle wind-guiding face 151 described above and sidepiece wind-guiding face 152 is provided with circular arc chamfering 154.Circle
Arc chamfering 154 can make the wind speed of spiral case air outlet 13 evenly.
Seamlessly transitted between sidepiece wind-guiding face 152 described above and the inner surface of housing 10.
The both sides of the snail tongue 15 are provided with lug 156, and snail tongue 15 is fixed on the housing 10 by lug 156.
Embodiment two：
As shown in Figure 9, Figure 10, the present embodiment provides a kind of blower fan, including spiral case 1, in the cavity 11 of spiral case 1
Motor 3 and wind wheel 2, the rotating shaft 31 of motor 3 is arranged at the air inlet 12 of spiral case 1 by bearing 4, and wind wheel 2 is arranged on motor
On 3 shells, wherein, the spiral case 1 is provided with the blower volute structure described in embodiment one.
Sidepiece wind-guiding face 152 described above is with the difference in height c of middle wind-guiding face 151 and the outer diameter D ratio of the wind wheel 2 is c：
D=0.01~0.015.
The performance specifically to blower fan described in existing blower fan and the present embodiment is compared below.Table one shows existing blower fan
Unit performance, table two shows the unit performance of blower fan described in the present embodiment, and table three is shown under equal air quantity, existing blower fan
System test performance and noise situation with blower fan described in the present embodiment are contrasted.
The condition of test is as follows：
Standard atmospheric pressure Pan (hPa)=1013；Normal temperature tan (DEG C)=25；
Atmospheric density ρ a (kg/m3)=1.1767；Wind wheel outer diameter D (mm)=150；
Snail tongue width a (mm)=250.
Table one
The condition of test is：
The length b of the sidepiece wind-guiding face 152 of side is b with the total length a ratios of the snail tongue 15：A=0.28；
The sidepiece wind-guiding face 152 is 1.5mm with the difference in height c of middle wind-guiding face 151.
Table two
Table three
From the foregoing, it will be observed that being improved by the structure to the spiral case 1, make the wind speed of air outlet 12 of spiral case 1 evenly,
Make the air-out amount efficiency of blower fan can be higher than existing blower fan by 1%~2%, reach the effect of energy-conservation；In terms of noise, ear is listened can be felt
Feel that the blade of wind wheel 2 is relatively low by sound, level of noise also has obvious reduction.
Above example is better embodiment of the invention, but embodiments of the present invention not limited to this, and other are any
Without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplify, be equivalent displacement side
Formula, is included within protection scope of the present invention.
Claims (10)
1. cavity (11) is formed in a kind of blower volute structure, including housing (10), housing (10), and housing (10) is provided with and sky
The air inlet (12) and air outlet (13) of chamber (11) connection, housing (10) are provided with snail tongue (15), its feature in air outlet (13) place
It is：The inner surface of the snail tongue (15) is wind-guiding face (150), and described wind-guiding face (150) is including positioned at middle wind-guiding face
(151) and positioned at the sidepiece wind-guiding face (152) of middle wind-guiding face (151) both sides, the height of sidepiece wind-guiding face (152) is led than centre
The height in wind face (151) is high, described sidepiece wind-guiding face (152) and middle wind-guiding face (151) parallel arrangement.
2. a kind of blower volute structure according to claim 1, it is characterised in that：The middle wind-guiding face (151) and side
The centerline axis parallel of portion's wind-guiding face (152) and the air inlet (12).
3. a kind of blower volute structure according to claim 2, it is characterised in that：The middle wind-guiding face (151) and side
Portion's wind-guiding face (152) is provided with rounding (155).
4. a kind of blower volute structure according to claim 1 or 2 or 3, it is characterised in that：The sidepiece wind-guiding face
(152) length is 0.25~0.35 with the total length ratio of the snail tongue (15).
5. a kind of blower volute structure according to claim 4, it is characterised in that：The middle wind-guiding face (151) and side
Portion's wind-guiding face is seamlessly transitted between (152).
6. a kind of blower volute structure according to claim 5, it is characterised in that：The middle wind-guiding face (151) and side
Transition face (153) between portion's wind-guiding face (152) is provided with circular arc chamfering (154).
7. a kind of blower volute structure according to claim 6, it is characterised in that：The sidepiece wind-guiding face (152) and shell
Seamlessly transitted between the inner surface of body (10).
8. a kind of blower volute structure according to claim 7, it is characterised in that：Snail tongue (15) both sides are provided with lug
(156), snail tongue (15) is fixed on the housing (10) by lug (156).
9. a kind of blower fan, including spiral case (1), motor (3) and wind wheel (2) in spiral case (1) cavity (11), motor (3)
Rotating shaft (31) by bearing (4) installed in air inlet (12) place of spiral case (1), wind wheel (2) on motor (3) shell,
It is characterized in that：The spiral case (1) is provided with the blower volute structure described in claim 1 to 8 any one.
10. a kind of blower fan according to claim 9, it is characterised in that：The sidepiece wind-guiding face (152) and middle wind-guiding
The difference in height in face (151) and the external diameter ratio of the wind wheel (2) are 0.01~0.015.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126237.5U CN206309649U (en) | 2016-10-14 | 2016-10-14 | A kind of blower volute structure and apply its blower fan |
| PCT/CN2017/077699 WO2018054027A1 (en) | 2016-09-22 | 2017-03-22 | Coil draught fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126237.5U CN206309649U (en) | 2016-10-14 | 2016-10-14 | A kind of blower volute structure and apply its blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206309649U true CN206309649U (en) | 2017-07-07 |
Family
ID=59242614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621126237.5U Active CN206309649U (en) | 2016-09-22 | 2016-10-14 | A kind of blower volute structure and apply its blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206309649U (en) |
-
2016
- 2016-10-14 CN CN201621126237.5U patent/CN206309649U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207795681U (en) | Axial flow fan leaf, axial flow fan blade component, axial flow blower ducting assembly | |
| CN201297278Y (en) | Closed vane wheel with S-shaped novel vanes dedicated to small high-speed centrifugal fan | |
| CN107503958A (en) | A kind of centrifugal blower fan system for range hood | |
| CN104791296A (en) | Structure of centrifugal fan impeller | |
| CN204497880U (en) | A kind of iron-shell motor | |
| CN202789739U (en) | Fan of range hood | |
| CN200993121Y (en) | Centrifugal one-way wind wheel | |
| CN102261341B (en) | Minitype dual-air-out centrifugal fan | |
| CN206309649U (en) | A kind of blower volute structure and apply its blower fan | |
| CN102588349B (en) | Axial flow fan for exhausting air and dust in pipeline | |
| CN207513872U (en) | A kind of centrifugal blower fan system | |
| CN200996391Y (en) | Axial-flow wind wheel | |
| CN204267368U (en) | A kind of Wind Volume axial fan | |
| CN202833291U (en) | Air cooling refrigerator, compact centrifugal fan and air supply system for air cooling refrigerator | |
| CN201982370U (en) | Wind turbine blade and wind turbine of range hood | |
| CN202926711U (en) | Impeller and centrifugal blower including the same | |
| CN104405654A (en) | Mute axial flow fan | |
| CN204511965U (en) | A kind of centrifugal fan impeller structure | |
| CN207261279U (en) | A kind of wind turbine | |
| CN204827981U (en) | High -efficient mixed flow fan | |
| CN112065770A (en) | Blade, centrifugal fan and electrical equipment | |
| CN211901076U (en) | Noise reduction volute tongue structure of cross flow fan | |
| CN204267314U (en) | A kind of quiet axial fan | |
| CN219492671U (en) | Impeller wheel | |
| CN104481931A (en) | Low-noise axial fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |