CN202326396U - Cross-flow fan middle section and cross-flow fan - Google Patents
Cross-flow fan middle section and cross-flow fan Download PDFInfo
- Publication number
- CN202326396U CN202326396U CN 201120447642 CN201120447642U CN202326396U CN 202326396 U CN202326396 U CN 202326396U CN 201120447642 CN201120447642 CN 201120447642 CN 201120447642 U CN201120447642 U CN 201120447642U CN 202326396 U CN202326396 U CN 202326396U
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- angle
- flow fan
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- air intake
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Abstract
The utility model relates to air-conditioning parts. A cross-flow fan middle section is formed by integral injection molding of an annular middle disk and a plurality of blades, the number of the blades ranges from 31 to 38, the blades are divided into at least three groups according to different wind inlet angles, the number of the blades in each group ranges from 2 to 6, the wind inlet angles of the blades in the each group are the same, the wind inlet angles of any two adjacent groups are different, and the wind inlet angles of all the blades range from 24 degrees to 29 degrees. The cross-flow fan middle section has the advantages of being novel in structure. A cross-flow fan which is formed by adopting the cross-flow fan middle section is remarkable in noise reduction effect.
Description
Technical field
The utility model relates to a kind of air conditioner parts, specifically be in the through-flow fan blade joint with adopt this in the through-flow fan blade controlled.
Background technique
The idle call through-flow fan blade processes by saving ultrasonic welding in a plurality of, and middle joint is made up of circular wheel disc and the injection moulding of polylith blade one.The air intake angle angle of all blades in the existing through-flow fan blade in the joint is identical, can produce the sound wave spectrum stack during fan blade running, and the deficiency of its existence is that noise is big.
Summary of the invention
The purpose of the utility model is in order to solve the big problem of noise in operating that existing through-flow fan blade exists, and improves joint in a kind of through-flow fan blade of novel structure and adopts the through-flow fan blade of the reduced noise of controlling in this through-flow fan blade.
In order to realize above-mentioned purpose, the technological scheme below the utility model has adopted:
Save in the through-flow fan blade, be made up of circular mid-game and the injection moulding of polylith blade one, blade quantity is between 31～38; Blade is pressed air intake angle angle different grouping; At least be divided into 3 groups, all between 2～6, every group of interior blade air intake angle angle is identical for every group blade quantity; Air intake angle angle between the two adjacent groups is different arbitrarily; The air intake angle angle of all blades is all between 24 °～29 °.
As preferably, comprise the identical group of many group air intake angle angles, and angle identical group in air intake angle can not be arranged continuously.
As preferably, said blade is divided into 6～18 groups by air intake angle angle difference, and does not have the group repeated arrangement of identical air intake angle angle, has upset the noise spectrum stack of rule, can reduce the fan blade operating noise, and sound is more near natural sound of the wind.
As preferably, said blade is 31,32 or 35, adopts joint in the through-flow fan blade that this blade quantity processes to reduce the best results of noise, compares with the identical product of unidimensional employing air intake angle angle after processing through-flow fan blade, can reduce by 20% noise.
Through-flow fan blade is connected and composed by joint head and the tail in the above-mentioned through-flow fan blade.
Adopted in the through-flow fan blade of above-mentioned technological scheme and saved, blade is pressed air intake angle angle different grouping, is divided into 3 groups at least; All between 24 °～29 °, the air intake angle angle between the two adjacent groups is different arbitrarily for the air intake angle angle of all blades, and the air-flow that every group of blade produced during the fan blade running does not wait; The noise that produces is also different; Upset the noise spectrum stack of rule, can reduce the fan blade operating noise, sound is more near natural sound of the wind.Adopt the through-flow fan blade of controlling in this through-flow fan blade can significantly reduce noise, adopt the identical product of air intake angle angle to compare, can reduce noise more than 15% with size of the same type.In sum, the advantage that saves in this through-flow fan blade is a novel structure, and it is obvious to adopt the through-flow fan blade of controlling in this through-flow fan blade to reduce noise result.
Description of drawings
Fig. 1: the embodiment's of the utility model structural representation.
Embodiment
Below in conjunction with Fig. 1 the embodiment of the utility model is done a detailed explanation.
Embodiment 1
Save in the through-flow fan blade as shown in Figure 1, be made up of with the 2 one injection mouldings of polylith blade circular mid-game 1, blade 2 quantity are between 31～38, and the air intake angle angle 3 of all blades 2 is all between 24 °～29 °.Blade 2 is pressed air intake angle angle 3 different grouping, is divided into 3 groups at least, and all between 2～6, every group of interior blade 2 air intake angle angles 3 are identical for every group blade 2 quantity.
As shown in Figure 1; Blade 2 is divided into A group, C group, D group, F group and B group by air intake angle angle 3 differences; Wherein to be two be B group repeated arrangement for B group; The blade 2 that saves in the through-flow fan blade of this patent is by air intake angle angle 3 different grouping, and it is that the identical group of air intake angle angle 3 can repeated arrangement that many group air intakes angle angle 3 identical groups wherein can be arranged, but can not to arrange continuously be that air intake angle angle 3 between any two adjacent groups can not be identical to air intake angle angle 3 identical groups.
Same, joint also can be divided into 6～18 groups by blade 2 air intake angle angle 3 differences in the through-flow fan blade of this patent, and does not have the group repeated arrangement of identical air intake angle angle 3, promptly has no two groups air intake angle angle 3 identical.
Blade 2 quantity in the foregoing description are between 31～38; Promptly can be any in 31,32,33,34,35,36,37 and 38; Compare with the employing air intake angle angle 3 identical products of size of the same type when wherein blade 2 quantity are 31,32 or 35; Can reduce by 20% noise, promptly use best results.
Embodiment 2
A kind of through-flow fan blade is connected and composed like the mode of saving ultrasonic welding processing in embodiment's 1 described through-flow fan blade by a plurality of from beginning to end.The air-flow that each blade 2 is produced during the fan blade running does not wait, and the noise of generation is also different, has upset the noise spectrum stack of rule, can reduce the fan blade operating noise, and sound is more near natural sound of the wind.
Claims (5)
1. save in the through-flow fan blade; Constitute by circular mid-game and the injection moulding of polylith blade one; It is characterized in that blade quantity between 31～38, blade is pressed air intake angle angle different grouping, and the air intake angle different group of angle is at least 3 groups; All between 2～6, every group of interior blade air intake angle angle is identical for every group blade quantity; Air intake angle angle between the two adjacent groups is different arbitrarily; The air intake angle angle of all blades is all between 24 °～29 °.
2. save in the through-flow fan blade according to claim 1, it is characterized in that comprising the identical group of many group air intake angle angles, and angle identical group in air intake angle can not be arranged continuously.
3. save in the through-flow fan blade according to claim 1, it is characterized in that said blade is divided into 6～18 groups by air intake angle angle difference, and do not have the group repeated arrangement of identical air intake angle angle.
4. according to saving in claim 1 or the 2 or 3 described through-flow fan blades, it is characterized in that said blade is 31,32 or 35.
5. through-flow fan blade is characterized in that being connected and composed by joint head and the tail in a plurality of through-flow fan blades as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120447642 CN202326396U (en) | 2011-11-12 | 2011-11-12 | Cross-flow fan middle section and cross-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120447642 CN202326396U (en) | 2011-11-12 | 2011-11-12 | Cross-flow fan middle section and cross-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326396U true CN202326396U (en) | 2012-07-11 |
Family
ID=46438378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120447642 Expired - Lifetime CN202326396U (en) | 2011-11-12 | 2011-11-12 | Cross-flow fan middle section and cross-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217457A (en) * | 2021-05-11 | 2021-08-06 | Tcl空调器(中山)有限公司 | Wind wheel and air conditioner |
-
2011
- 2011-11-12 CN CN 201120447642 patent/CN202326396U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217457A (en) * | 2021-05-11 | 2021-08-06 | Tcl空调器(中山)有限公司 | Wind wheel and air conditioner |
| CN113217457B (en) * | 2021-05-11 | 2023-09-19 | Tcl空调器(中山)有限公司 | Wind wheel and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191012 Address after: 315480 Langxia street, Langxia street, Yuyao, Ningbo, Zhejiang 188 Patentee after: Ningbo Langdi Environmental Technology Co., Ltd. Address before: 315412 Zhejiang city of Ningbo province Yuyao Langxia Yuyao industrial park by 20 Road No. 188 Patentee before: Ningbo Langdi Impeller Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |