CN105065331A - Volute and centrifugal fan with same - Google Patents
Volute and centrifugal fan with same Download PDFInfo
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- CN105065331A CN105065331A CN201510511715.8A CN201510511715A CN105065331A CN 105065331 A CN105065331 A CN 105065331A CN 201510511715 A CN201510511715 A CN 201510511715A CN 105065331 A CN105065331 A CN 105065331A
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- spiral case
- volute
- noise
- centrifugal blower
- upper volute
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Abstract
A volute (1) comprises an upper volute body (11) and a lower volute body (12). The upper volute (11) and the lower volute body (12) are both of a double-layer structure (10). Each double-layer structure comprises an inner layer structure body (101) and an outer-layer structure body (102), and a noise elimination structure (2) is arranged on the inner layer structure bodies (101). According to the volute, it can be guaranteed that the overall structure of a fan is firm and not prone to deform, the air volume can be maintained or increased while it is guaranteed that noise is reduced, and the multifunctionality of products is improved. On the premise of guaranteeing that the air volume is steady, the noise can be further reduced by 1-3 db; the deformation problem of the volute of the centrifugal fan can be solved, the amount of deformation is smaller than 1 mm, and it is guaranteed that various technical indexes of the centrifugal fan are stable. The noise of the fan can be eliminated actively and effectively. The invention further relates to the centrifugal fan with the volute.
Description
Technical field
The invention belongs to blower fan field, be specifically related to a kind of spiral case and there is the centrifugal blower of this spiral case.
Background technique
Existing centrifugal blower volute mainly designs based on involute and spiral of Archimedes, air quantity is identical with the variation tendency of noise, namely the large then noise of air quantity and then increases, if desired noise reduces then air quantity also just and then reduction, if air quantity therefore will be improved or reduce noise, to sacrifice another index for cost, must can not meet the requirement of multifunction.
Existing centrifugal blower is without active denoising structure, and spiral case material is mainly based on ABS, and this material differs due to thickness, and amount of deformation is large, and molded line is uncontrollable, thus cause air quantity and noise unstable.
Due to above-mentioned existing blower fan exist cannot ensure to reduce noise while can also maintain or improve the defect of air quantity, research and design of the present invention goes out a kind of new spiral case and has the centrifugal blower of this spiral case.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to overcome the defect that can also maintain or improve air quantity while blower fan of the prior art cannot ensure to reduce noise, thus provides a kind of new spiral case and have the centrifugal blower of this spiral case.This spiral case possesses active noise reduction structure.
A kind of spiral case provided by the invention, comprises upper volute and lower spiral case, and wherein said upper volute and described lower spiral case are double layer construction, and described double layer construction comprises endothecium structure and layer structure, and described endothecium structure is provided with noise elimination structure.
Preferably, described noise elimination structure is micro silencer structure; Described micro silencer structure comprises multiple micropore, and described micropore is evenly arranged on described endothecium structure.
Preferably, the aperture of described micropore is less than 1mm.
Preferably, described endothecium structure is curved-surface structure, and the curved surface molded line of described curved-surface structure is spiral of Archimedes.
Preferably, the molded line of described layer structure and the molded line of described endothecium structure are consistent.
Preferably, the junction plane place of described upper volute and described lower spiral case is provided with buckle structure.
Preferably, the position between the upper volute of described spiral case and the buckle structure of the lower spiral case left and right sides is also provided with sealed groove.
The present invention also provides a kind of centrifugal blower, and it comprises aforesaid spiral case.
Preferably, also comprise centrifugation blade, described centrifugation blade is forward centrifugal fan blade.
Preferably, centrifugal blower front portion is provided with two blocks.
A kind of spiral case provided by the invention and the centrifugal blower with this spiral case have following beneficial effect:
1. according to spiral case of the present invention and the centrifugal blower with this spiral case, can ensure that blower fan overall structure is firm not yielding, can also maintain while ensureing to reduce noise or improve air quantity, improve the multifunctionality of product.Ensureing, under the prerequisite that air quantity maintains an equal level, noise 1-3 decibel to be reduced further; Can solve centrifugal blower volute problem on deformation, amount of deformation is less than 1mm, ensures that centrifugal blower all technical is stablized.
2. according to spiral case of the present invention and and there is the centrifugal blower of this spiral case, initiatively effectively can also carry out eliminating effect to the noise of blower fan.
3. according to spiral case of the present invention and and there is the centrifugal blower of this spiral case, effectively can improve sealing, avoiding spiral case to leak out affects noise and air quantity.
Accompanying drawing explanation
Fig. 1 is the plan view of centrifugal blower of the present invention;
Fig. 2 is the explosive view of centrifugal blower of the present invention;
Fig. 3 be centrifugal blower of the present invention sectional view;
Fig. 4 is the partial enlarged drawing of the bayonet position between upper and lower spiral case of the present invention;
Fig. 5 be sealed groove structure of the present invention partial enlarged drawing.
In figure, reference character is expressed as:
1-spiral case, 11-upper volute, 12-lower spiral case, 10-double layer construction, 101-endothecium structure, 102-layer structure, 2-noise elimination structure, 21-micropore, 3-buckle structure, 4-sealed groove, 5-centrifugation blade.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As Figure 1-3, a kind of spiral case 1 provided by the invention, comprises upper volute 11 and lower spiral case 12, and wherein said upper volute 11 and described lower spiral case 12 are double layer construction 10, and described double layer construction comprises endothecium structure 101 and layer structure 102.By upper volute 11 and/or described lower spiral case 12 are set to double layer construction 10, described double layer construction comprises endothecium structure 101 and layer structure 102, can ensure that blower fan overall structure is firm not yielding, can also maintain while ensureing to reduce noise or improve air quantity, improve the multifunctionality of product.Ensureing, under the prerequisite that air quantity maintains an equal level, noise 1-3 decibel to be reduced further; Can solve centrifugal blower volute problem on deformation, amount of deformation is less than 1mm, ensures that centrifugal blower all technical is stablized.Described endothecium structure 101 is also provided with noise elimination structure 2.Initiatively effectively eliminating effect can be carried out to the noise of blower fan by arranging noise elimination structure 2.
Preferably, as Figure 1-3, described noise elimination structure 2 is micro silencer structure, and described micro silencer structure comprises multiple micropore 21, and described micropore 21 is evenly arranged on described endothecium structure 101.Noise elimination structure is chosen as the structure comprising multiple micropores 21, effectively can plays eliminating effect by the structure of micropore 21 to noise, effectively reach the effect of noise elimination noise reduction.
Preferably, the aperture of described micropore 21 is less than 1mm.Micropore size is arranged than being the little situation of above-mentioned numerical value, micropore baffler can be formed, its principle is for foundation with the frequency spectrum of jet noise, when air-flow is through small holes, the frequency spectrum of jet noise will shift to high frequency or ultra-high frequency, audible sound composition in frequency spectrum is obviously reduced, thus significantly reduce noise, decrease the interference to people and injury.
Preferably, described endothecium structure 101 is curved-surface structure.Can effectively ensure that air-flow flows in spiral case, reduce the resistance of air-flow, increase air quantity.
Preferably, the curved surface molded line of described curved-surface structure adopts spiral of Archimedes.Effectively can ensure that the air quantity of blower fan maintains the level identical with original blower fan or do not reduce like this, effectively maintain or improve air quantity.
Preferably, the molded line of described layer structure 102 and the molded line of described endothecium structure 101 are consistent, can be same or analogous molded line shape, effectively can play the effect that sealing is isolated, ensure that blower fan is unlikely from the wind that internal layer micropore 21 spills and leave blower fan.
As shown in Figure 4, preferably, the junction plane place of described upper volute 11 and described lower spiral case 12 is provided with buckle structure 3.By arranging buckle structure 3 at the junction plane place of upper volute 11 and lower spiral case 12, can effectively be fixed together by upper and lower spiral case, for the thread connecting mode of routine, installing/dismounting be convenient.
As shown in Figure 4, preferably, position between described spiral case upper volute 11 and the buckle structure 3 of lower spiral case 12 left and right sides is also provided with sealed groove 4, preferably, as shown in Figure 1, the left and right sides at this place refers to towards spiral case arranged on left and right sides face during spiral case exhaust outlet, and is further preferably arranged on the position away from spiral case exhaust outlet, described sealed groove 4 is by the gap sealing between upper and lower spiral case, and the gap between the buckle of the spiral case left and right sides seals by described sealed groove 4 completely.
The present invention also provides a kind of centrifugal blower, and it comprises aforesaid spiral case 1.By upper volute 11 and/or described lower spiral case 12 are set to double layer construction 10, described double layer construction comprises endothecium structure 101 and layer structure 102, can ensure that blower fan overall structure is firm not yielding, can also maintain while ensureing to reduce noise or improve air quantity, improve the multifunctionality of product.Ensureing, under the prerequisite that air quantity maintains an equal level, noise 1-3 decibel to be reduced further; Can solve centrifugal blower volute problem on deformation, amount of deformation is less than 1mm, ensures that centrifugal blower all technical is stablized.
Preferably, also comprise centrifugation blade 5, described centrifugation blade 5 is arranged on the interior volume formed between described upper and lower spiral case 11,12, so just defines a complete centrifugal blower, plays centrifugal air draught, improves wind speed (or blast), go out wind action, described centrifugation blade 5 is forward centrifugal fan blade, can improve air quantity to greatest extent like this, and preferably the leaf of described fan blade is uniform thickness setting, leaf uniform thickness can ensure that air-out is even, and blower fan running has no abnormal sound.
Preferably, centrifugal blower front portion is provided with two blocks.Effectively position-limiting action can be carried out to the left and right directions of lower spiral case front portion by arranging two blocks in centrifugal blower front portion.
As shown in Figure 1, the centrifugal blower designed by the present invention is mainly used in wind pipe machine, for air-conditioning provides the stable wind field continued, ensures the air flowing of air-conditioning inside, for cold and hot exchange provides propagation medium.As shown in Figure 2, centrifugal blower of the present invention forms primarily of 3 parts: lower spiral case, centrifugation blade and upper volute.After the assembling of centrifugal blower by left and right sides buckle by locked for upper and lower spiral case, centrifugal blower front portion has two blocks spacing to the anterior left and right of lower spiral case.The general problem on deformation of spiral case effectively can be solved by double-deck spiral case, and then reduction noise, air quantity can also be improved simultaneously, noise is reduced further by microcellular structure, fixation firm and for convenience detach can be realized by buckle structure, to spiral case gap effective sealing, effectively improve sealing, spiral case can be avoided to leak out and to cause noise and affect air quantity by sealed groove.
Those skilled in the art will readily understand, under the prerequisite of not conflicting, above-mentioned each advantageous manner freely can combine, superpose.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (10)
1. a spiral case (1), comprise upper volute (11) and lower spiral case (12), it is characterized in that: described upper volute (11) and described lower spiral case (12) are double layer construction (10), described double layer construction comprises endothecium structure (101) and layer structure (102), and described endothecium structure (101) is provided with noise elimination structure (2).
2. a kind of spiral case according to claim 1, is characterized in that: described noise elimination structure (2) is micro silencer structure; Described micro silencer structure comprises multiple micropore (21), and described micropore (21) is evenly arranged on described endothecium structure (101).
3. a kind of spiral case according to claim 2, is characterized in that: the aperture of described micropore (21) is less than 1mm.
4. according to a kind of spiral case one of claim 1-3 Suo Shu, it is characterized in that: described endothecium structure (101) is curved-surface structure, the curved surface molded line of described curved-surface structure is spiral of Archimedes.
5. according to a kind of spiral case one of claim 1-4 Suo Shu, it is characterized in that: the molded line of described layer structure (102) and the molded line of described endothecium structure (101) are consistent.
6. according to a kind of spiral case one of claim 1-5 Suo Shu, it is characterized in that: the junction plane place of described upper volute (11) and described lower spiral case (12) is provided with buckle structure (3).
7. a kind of spiral case according to claim 6, is characterized in that: the position between the upper volute (11) of described spiral case (1) and the buckle structure (3) of lower spiral case (12) left and right sides is also provided with sealed groove (4).
8. a centrifugal blower, is characterized in that: comprise the spiral case (1) according to any one of claim 1-7.
9. a kind of centrifugal blower according to claim 8, is characterized in that: also comprise centrifugation blade (5), and described centrifugation blade (5) is forward centrifugal fan blade.
10. one of-9 described a kind of centrifugal blowers according to Claim 8, is characterized in that: be provided with two blocks in centrifugal blower front portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511715.8A CN105065331A (en) | 2015-08-19 | 2015-08-19 | Volute and centrifugal fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511715.8A CN105065331A (en) | 2015-08-19 | 2015-08-19 | Volute and centrifugal fan with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105065331A true CN105065331A (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511715.8A Pending CN105065331A (en) | 2015-08-19 | 2015-08-19 | Volute and centrifugal fan with same |
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| CN (1) | CN105065331A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091307A (en) * | 2016-08-01 | 2016-11-09 | 珠海格力电器股份有限公司 | Worm frame and there is its air-conditioner |
| CN106151111A (en) * | 2016-08-08 | 2016-11-23 | 常州大学 | A kind of train low noise cooling blower |
| CN107355397A (en) * | 2017-07-10 | 2017-11-17 | 加丁（天津）科技有限公司 | A kind of low noise centrifugal fan, air cleaning unit for being provided with noise-reducing acoustic liner |
| CN111255746A (en) * | 2018-11-30 | 2020-06-09 | 无锡小天鹅电器有限公司 | Volute air duct, fan assembly and clothes dryer |
| CN114294720A (en) * | 2021-12-28 | 2022-04-08 | 中山市爱美泰电器有限公司 | Water source dehumidifier |
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| CN203570701U (en) * | 2013-09-27 | 2014-04-30 | 山西巨龙风机有限公司 | Silencer of high-speed wire rod rolling cold air control fan |
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- 2015-08-19 CN CN201510511715.8A patent/CN105065331A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091307A (en) * | 2016-08-01 | 2016-11-09 | 珠海格力电器股份有限公司 | Worm frame and there is its air-conditioner |
| CN106151111A (en) * | 2016-08-08 | 2016-11-23 | 常州大学 | A kind of train low noise cooling blower |
| CN107355397A (en) * | 2017-07-10 | 2017-11-17 | 加丁（天津）科技有限公司 | A kind of low noise centrifugal fan, air cleaning unit for being provided with noise-reducing acoustic liner |
| CN111255746A (en) * | 2018-11-30 | 2020-06-09 | 无锡小天鹅电器有限公司 | Volute air duct, fan assembly and clothes dryer |
| CN114294720A (en) * | 2021-12-28 | 2022-04-08 | 中山市爱美泰电器有限公司 | Water source dehumidifier |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |
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| RJ01 | Rejection of invention patent application after publication |