CN207777269U - A kind of through-flow fan blade and air-conditioning - Google Patents
A kind of through-flow fan blade and air-conditioning Download PDFInfo
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- CN207777269U CN207777269U CN201721785591.3U CN201721785591U CN207777269U CN 207777269 U CN207777269 U CN 207777269U CN 201721785591 U CN201721785591 U CN 201721785591U CN 207777269 U CN207777269 U CN 207777269U
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Abstract
The utility model is related to a kind of air conditioner parts.A kind of through-flow fan blade, includes the middle section of multiple connections, and middle section includes round mid-game and more blades thereon, and blade rear end is linked together with round mid-game front end, it is round in back-end disk equipped with multiple and vane nose shape and quantity Matching blade mounting grooves；The vane nose saved in the latter is inserted into the blade mounting groove of previous middle section；It is characterized in that the angle of the blade pitch angle of arbitrary adjacent blades is different in each circle mid-game, the angle of blade pitch angle is between 2.5 °~8.5 °, and blade pitch angle is that projection and vane nose of the blade rear end in mid-game plane are projected in corresponding central angle in mid-game in mid-game plane.The advantages of through-flow fan blade is that outlet air sound is natural.
Description
Technical field
The utility model is related to a kind of air conditioner parts, especially a kind of through-flow fan blade.
Background technology
Through-flow fan blade is one of accessory important in air-conditioning, is process by saving connection in multiple, middle section is by justifying
Cyclic annular mid-game and more blades integrated injection molding are constituted, and blade rear end is linked together with round mid-game front end, in circle on back-end disk
Equipped with multiple and vane nose shape and quantity Matching blade mounting groove；The vane nose that is saved in the latter be inserted into it is previous in
In the blade mounting groove of section.Round mid-game blade angle of inclination is identical each of on existing through-flow fan blade, and flow over fan blade air-flow
The air pressure height before and after blade is passed twice through, it is unnatural using the air conditioning exhausting sound of above-mentioned through-flow fan blade.In addition, adjacent blades are justified
Heart angle angle is identical, and blade impacts greatly the same frequency of volute tongue, and fan blade rotational noise is big.
Invention content
Purpose of the utility model is to solve deficiencies existing for above-mentioned existing through-flow fan blade, provide a kind of outlet air sound
Through-flow fan blade natural, fan blade rotational noise is low.
In order to achieve the above purpose, the utility model uses technical solution below：A kind of through-flow fan blade, including it is more
The middle section of a connection, middle section include round mid-game and more blades thereon, and blade rear end is linked together with circle mid-game front end,
Back-end disk is equipped with multiple blade mounting grooves with vane nose shape and quantity Matching in circle；Before the blade saved in the latter
End is inserted into the blade mounting groove of previous middle section；It is characterized in that in each circle mid-game arbitrary adjacent blades blade lean
The angle at angle is different, and the angle of blade pitch angle is between 2.5 °~8.5 °, and blade pitch angle is blade rear end in mid-game plane
On projection and vane nose be projected in corresponding central angle in mid-game in mid-game plane.
Preferably, the central angle angle between adjacent blades is different, the central angle angle between adjacent blades is 7.5 °
Between~12.5 °；Further, blade central angle is distribution angle of the blade in a circle on the circumference of disk.Utilize not decile
Angle of distribution arrangement adjacent blades are upset adjacent blades and are impacted to the same frequency of volute tongue, reduce fan blade rotational noise.
Preferably, blade rear end and round mid-game integrated injection molding, firmness are high.
Preferably, blade is 31-39 pieces.
A kind of air-conditioning, including above-mentioned through-flow fan blade.
A kind of through-flow fan blade of above-mentioned technical solution is used, the blade of arbitrary adjacent blades inclines in each circle mid-game
The angle at oblique angle is different, and the angle of blade pitch angle is reduced crossing current fan blade air-flow and passes twice through blade between 2.5 °~8.5 °
Front and back draught head makes air-flow smooth fluctuation, more naturally comfortable using the air conditioning exhausting sound of the through-flow fan blade.To sum up institute
It states, the advantages of through-flow fan blade is that outlet air sound is natural.
Description of the drawings
Fig. 1：The structural schematic diagram of the embodiments of the present invention 1.
Fig. 2：Schematic diagram is saved in the 1 of the utility model embodiment.
Specific implementation mode
Embodiment 1
Specific embodiment of the present utility model is made a detailed explanation with reference to Fig. 1 and Fig. 2.
A kind of through-flow fan blade as depicted in figs. 1 and 21 is connected and composed by multiple middle sections, middle section 1 include round mid-game 2 and
31-39 pieces blade 3 thereon, blade rear end 31 are linked together with round mid-game front end, specifically in blade rear end 31 and circle
Disk integrated injection molding.Back-end disk is equipped with multiple blade mounting grooves with vane nose shape and quantity Matching in circle.Afterwards
The vane nose 31 saved in one is inserted into the blade mounting groove of previous middle section.Arbitrary adjacent blades in each circle mid-game
The angle of blade pitch angle A is different, and the angle of blade pitch angle A is between 2.5 °~8.5 °, and blade pitch angle A is blade rear end
31 projection and vane nose 32 in mid-game plane is projected in corresponding central angle in mid-game in mid-game plane.
Central angle B angles between adjacent blades are different, and the central angle B angles between arbitrary neighborhood blade are 7.5 °~
Between 12.5 °, blade central angle B is distribution angle of the blade in a circle on the circumference of disk.It is arranged using not decile angle of distribution
Adjacent blades are upset adjacent blades 3 and are impacted to the same frequency of volute tongue, reduce fan blade rotational noise.
When production, the vane nose 31 saved in the latter is inserted into the blade mounting groove of previous middle section and passes through ultrasonic wave
Welding.
Embodiment 2
A kind of air-conditioning, using the through-flow fan blade of above-described embodiment 1, air conditioning exhausting sound is more naturally comfortable.
Claims (6)
1. a kind of through-flow fan blade, include the middle section of multiple connections, middle section includes circle mid-game and more blades thereon, after blade
End is linked together with round mid-game front end, and back-end disk is equipped with multiple blades with vane nose shape and quantity Matching in circle
Mounting groove；The vane nose saved in the latter is inserted into the blade mounting groove of previous middle section；It is characterized in that in each circle
The angle of the blade pitch angle of arbitrary adjacent blades is different on disk, and the angle of blade pitch angle is blade between 2.5 °~8.5 °
Inclination angle is that projection and vane nose of the blade rear end in mid-game plane being projected in mid-game plane are corresponding in mid-game
Central angle.
2. a kind of through-flow fan blade according to claim 1, it is characterised in that the central angle angle between adjacent blades is different,
Central angle angle between adjacent blades is between 7.5 °~12.5 °.
3. a kind of through-flow fan blade according to claim 2, it is characterised in that blade central angle is blade disk in a circle
Distribution angle on circumference.
4. a kind of through-flow fan blade according to claim 1, it is characterised in that blade rear end and round mid-game integrated injection molding at
Type.
5. a kind of through-flow fan blade according to claim 1, it is characterised in that blade is 31-39 pieces.
6. a kind of air-conditioning, it is characterised in that including the through-flow fan blade described in claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721785591.3U CN207777269U (en) | 2017-12-19 | 2017-12-19 | A kind of through-flow fan blade and air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721785591.3U CN207777269U (en) | 2017-12-19 | 2017-12-19 | A kind of through-flow fan blade and air-conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777269U true CN207777269U (en) | 2018-08-28 |
Family
ID=63227109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721785591.3U Active CN207777269U (en) | 2017-12-19 | 2017-12-19 | A kind of through-flow fan blade and air-conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664117A (en) * | 2020-06-08 | 2020-09-15 | 华帝股份有限公司 | Intelligent adjustment's impeller device, fan and range hood |
-
2017
- 2017-12-19 CN CN201721785591.3U patent/CN207777269U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664117A (en) * | 2020-06-08 | 2020-09-15 | 华帝股份有限公司 | Intelligent adjustment's impeller device, fan and range hood |
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