CN106015101A - Volute, fan and air conditioning equipment, - Google Patents
Volute, fan and air conditioning equipment, Download PDFInfo
- Publication number
- CN106015101A CN106015101A CN201610635487.XA CN201610635487A CN106015101A CN 106015101 A CN106015101 A CN 106015101A CN 201610635487 A CN201610635487 A CN 201610635487A CN 106015101 A CN106015101 A CN 106015101A
- Authority
- CN
- China
- Prior art keywords
- spiral case
- absorbent treatment
- inner panel
- plate
- volute
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
Abstract
The invention relates to the field of fans, and provides a volute, a fan and air conditioning equipment, wherein the volute (100) comprises a hoarding (10) extending along a volute involute, the hoarding is provided with a double-layer structure comprising an inner plate (11) and an outer plate (12), a sound absorbing layer (13) is arranged on the inner side of the outer plate, and a hollow cavity (14) is limited and defined between the sound absorbing layer and the inner plate. When airflow strikes and vibrates the inner plate, the vibration is transmitted to the sound absorbing layer through the hollow cavity, and energy consumption occurs. After noise is subjected to the energy consumption, the vibration finally transmitted to the outer plate can be obviously reduced, therefore, the noise in the volute can be effectively lowered.
Description
Technical field
The present invention relates to blower fan technical field, particularly to a kind of spiral case and include this spiral case blower fan and
Air-conditioning equipment.
Background technology
In the air-conditioning equipment needing good muting function, fan noise is always consumer experience feedback and embraces
The subject matter of resentment.In use there is various noise in blower fan, wherein, especially can produce relatively in spiral case
Big noise.
Owing to air flows under the guiding of impeller in the spiral case with special molded line, air-flow is to spiral case
Clashing into causes the spiral case of thin-walled to vibrate, and then produces bigger noise.It addition, air quantity is the biggest, spiral case
Interior air motion is more violent, and above-mentioned noise is the biggest.
Therefore, the problem that in prior art, spiral case noise urgently to be resolved hurrily is bigger.
Summary of the invention
In view of this, it is contemplated that propose a kind of spiral case, to reduce the noise produced because of spiral case vibration.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
The present invention provides a kind of spiral case, and wherein, described spiral case includes the coaming plate extended along spiral case involute,
Described coaming plate is double-decker and includes inner panel and outside plate, and the inner side of described outside plate is provided with absorbent treatment, institute
State and define cavity between absorbent treatment and described inner panel.
Preferably, described absorbent treatment includes porous fibrous structure.
Preferably, described absorbent treatment is homosphere.
Preferably, described absorbent treatment is spongy layer.
Preferably, the thickness of described spongy layer is h, and the distance of described inner panel to described spongy layer is d,
Wherein: 2/3h≤d≤1.5h.
Preferably, h is 5-12mm.
Preferably, described spiral case includes that main body, described main body include described coaming plate and enclose described in being arranged on
The front and rear panels of plate both sides.
Preferably, described main body is integrated part.
The present invention also provides for a kind of blower fan, and wherein, described blower fan includes the spiral case of the present invention.
The present invention also provides for a kind of air-conditioning equipment, and wherein, described air-conditioning equipment includes the blower fan of the present invention.
By technique scheme, when airflow strikes inner panel and when making inner panel vibrate (i.e. noise),
Vibration will be transferred to absorbent treatment by cavity, and this vibration is occurring loss during cavity and wearing
Dissipate during crossing absorbent treatment, reduce energy.It addition, arrive sound absorption in vibration through cavity
During layer, permission partial vibration is entered and makes another part vibration return towards inner panel by absorbent treatment, and returns
This partial vibration will be returned again towards absorbent treatment by inner panel again so that partial vibration is in inner panel and sound absorption
Between Ceng the most back and forth, and thus repeatedly through cavity, thus create more loss in the cavities.
Noise, through above-mentioned energy expenditure, can significantly decrease the vibration being eventually transferred to outside plate, thus effectively
Reduce the noise in spiral case.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, the present invention's
Schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.?
In accompanying drawing:
Fig. 1 is the front view of a kind of embodiment of the spiral case of the present invention；
Fig. 2 is the sectional view that line A-A intercepts along Fig. 1.
Description of reference numerals:
100-spiral case, 10-coaming plate, 11-inner panel, 12-outside plate, 13-absorbent treatment, 14-cavity, 20-header board,
30-back plate.
Detailed description of the invention
In invention, in the case of illustrating on the contrary, the noun of locality of use as " upper and lower, left,
Right " typically refer to reference to upper and lower, left and right shown in the drawings；" inside and outside " refers to relative to each portion
The profile of part itself inside and outside.It addition, " multiple " that are previously mentioned in the present invention, refer at least two
Individual, including two and two or more.
Below with reference to the accompanying drawings and combine embodiment to describe the present invention in detail.
According to an aspect of the present invention, it is provided that a kind of spiral case, wherein, described spiral case 100 includes along snail
The coaming plate 10 that shell involute extends, described coaming plate 10 is for double-decker and includes inner panel 11 and outside plate 12,
The inner side of described outside plate 12 is provided with absorbent treatment 13, limits between described absorbent treatment 13 and described inner panel 11
Surely there is cavity 14.
Use the spiral case 100 of the present invention, when airflow strikes inner panel 11 and make inner panel 11 vibrate (i.e.
Noise) time, vibration will be transferred to absorbent treatment 13 by cavity 14, and this vibration is in the mistake through cavity 14
Journey there occurs loss, and dissipating during absorbent treatment 13, reduce energy.Separately
Outward, when vibration arrives absorbent treatment 13 through cavity 14, absorbent treatment 13 will allow partial vibration to enter
And make another part vibration return towards inner panel 11, and this partial vibration returned will by inner panel 11 again
Secondary return towards absorbent treatment 13 so that partial vibration between inner panel 11 and absorbent treatment 13 the most back and forth,
And thus repeatedly through cavity 14, thus in cavity 14, create more loss.Noise is through upper
State energy expenditure, the vibration being eventually transferred to outside plate 12 can be significantly decreased, thus effectively reduce snail
Noise in shell 100.
In the present invention, absorbent treatment 13 is for producing the vibration passed over through cavity 14 from inner panel 11
Raw diffuse-reflectance so that vibration can between inner panel 11 and absorbent treatment 13 multiple reflections dissipation energy.
Wherein, absorbent treatment 13 can be various suitable form and structure, as long as can be to dissipation of vibrations with fall
Its energy low, to produce sound-absorbing effect.
Wherein, described absorbent treatment 13 can pass through energy conversion consumption acoustic energy.Specifically, acoustic energy is (i.e.
The energy of vibration) various energy, such as heat energy can be converted into.To this end, preferably, absorbent treatment 13
Porous fibrous structure (such as fabric) can be included, so that the vibration arriving absorbent treatment 13 can be by many
Hole on the fibre structure of hole enters in absorbent treatment 13, and under the obstruction of fiber, is passed to by kinetic energy
Fiber, fiber can produce motion after obtaining kinetic energy and occur friction to be converted to heat energy each other, thus passing through
This energy conversion dissipation acoustic energy.
Preferably, described absorbent treatment 13 is homosphere, i.e. on the whole thickness of absorbent treatment 13 continuously
There is sound absorption function.Wherein it is possible to select various suitable material, as long as good diffuse-reflectance can be provided
Effect.Further, according to selected material, in the way of selection is suitable, absorbent treatment 13 can be fixed on
Outside plate 12.
Preferably, described absorbent treatment 13 can be spongy layer.Thus, on the one hand spongy layer can be utilized
Unrestrained good sound absorption function is provided, on the other hand and can be easy to be fixed by modes such as bondings to alleviate deadweight
In outside plate 12.
It addition, find according to the test of many times of the present inventor, the thickness h of spongy layer and inner panel 11
To distance d (i.e. the height of cavity) of spongy layer in particular range, using the teaching of the invention it is possible to provide optimal noise reduction effect
Really.Preferably, 2/3h≤d≤1.5h.
Additionally, inventor have studied the relation between the thickness h of spongy layer and the work efficiency of spiral case, and
Proved by test, when h is 5-12mm, it is possible to take into account noise reduction and spiral case work efficiency optimal
Join.
It addition, as depicted in figs. 1 and 2, spiral case 100 includes that main body, described main body include described coaming plate
10 and be arranged on header board 20 and the back plate 30 of described coaming plate 10 both sides.Wherein, as required, main
Body can be split-type structural, is i.e. assembled by single coaming plate 10, header board 20 and back plate 30.
Preferably, for simplifying structure, described main body can be integrated part.According to the material of main body, can select
Suitable molding mode.Such as, main body can be working of plastics, it is possible to be integrated part by injection mo(u)lding.
According to a further aspect in the invention, it is provided that a kind of blower fan, wherein, described blower fan includes the present invention's
Spiral case 100.Owing to the spiral case 100 of the present invention can provide noise reduction, the blower fan of the present invention also has
The advantage that noise is little.
Further aspect according to the present invention, it is provided that a kind of air-conditioning equipment, wherein, described air-conditioning equipment includes
The blower fan of the present invention, thus there is good muting function.
It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special
Levy, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not
The repetition wanted, various possible compound modes are illustrated by the present invention the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a spiral case, it is characterised in that described spiral case (100) includes along the extension of spiral case involute
Coaming plate (10), described coaming plate (10) is double-decker and includes inner panel (11) and outside plate (12), institute
The inner side stating outside plate (12) is provided with absorbent treatment (13), described absorbent treatment (13) and described inner panel (11)
Between define cavity (14).
Spiral case the most according to claim 1, it is characterised in that described absorbent treatment (13) includes
Porous fibrous structure.
Spiral case the most according to claim 2, it is characterised in that described absorbent treatment (13) is equal
Matter layer.
Spiral case the most according to claim 3, it is characterised in that described absorbent treatment (13) is sea
Continuous layer.
Spiral case the most according to claim 4, it is characterised in that the thickness of described spongy layer is h,
Described inner panel (11) is d to the distance of described spongy layer, wherein: 2/3h≤d≤1.5h.
Spiral case the most according to claim 5, it is characterised in that h is 5-12mm.
7. according to the spiral case described in any one in claim 1-6, it is characterised in that described spiral case
(100) including main body, described main body includes described coaming plate (10) and is arranged on described coaming plate (10)
The header board (20) of both sides and back plate (30).
Spiral case the most according to claim 7, it is characterised in that described main body is integrated part.
9. a blower fan, it is characterised in that described blower fan includes any one institute in claim 1-9
The spiral case (100) stated.
10. an air-conditioning equipment, it is characterised in that described air-conditioning equipment includes described in claim 9
Blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635487.XA CN106015101A (en) | 2016-08-03 | 2016-08-03 | Volute, fan and air conditioning equipment, |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635487.XA CN106015101A (en) | 2016-08-03 | 2016-08-03 | Volute, fan and air conditioning equipment, |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106015101A true CN106015101A (en) | 2016-10-12 |
Family
ID=57134543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610635487.XA Pending CN106015101A (en) | 2016-08-03 | 2016-08-03 | Volute, fan and air conditioning equipment, |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015101A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0374600A (en) * | 1989-08-11 | 1991-03-29 | Mitsubishi Electric Corp | Air blower |
| CN201377405Y (en) * | 2009-03-23 | 2010-01-06 | 胡雪群 | Refrigerator compressor with improved shell structure |
| CN202659589U (en) * | 2011-12-08 | 2013-01-09 | 重庆通用工业(集团)有限责任公司 | Centrifugal fan silencing soundproofing device with air layer |
| CN203257752U (en) * | 2013-05-28 | 2013-10-30 | 山东兖煤凯达环保机械有限公司 | Centrifugal noise elimination draught fan shell |
| CN104314874A (en) * | 2014-10-16 | 2015-01-28 | 珠海格力电器股份有限公司 | Volute and fan comprising volute |
| CN204961404U (en) * | 2015-09-30 | 2016-01-13 | 界首市鑫洋机电有限公司 | Low -noise centrifugal fan |
| CN204961415U (en) * | 2015-07-14 | 2016-01-13 | 柳州职业技术学院 | Fan silencer |
| CN205908520U (en) * | 2016-08-03 | 2017-01-25 | 广东美的制冷设备有限公司 | Spiral case, fan and air conditioning equipment |
-
2016
- 2016-08-03 CN CN201610635487.XA patent/CN106015101A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0374600A (en) * | 1989-08-11 | 1991-03-29 | Mitsubishi Electric Corp | Air blower |
| CN201377405Y (en) * | 2009-03-23 | 2010-01-06 | 胡雪群 | Refrigerator compressor with improved shell structure |
| CN202659589U (en) * | 2011-12-08 | 2013-01-09 | 重庆通用工业(集团)有限责任公司 | Centrifugal fan silencing soundproofing device with air layer |
| CN203257752U (en) * | 2013-05-28 | 2013-10-30 | 山东兖煤凯达环保机械有限公司 | Centrifugal noise elimination draught fan shell |
| CN104314874A (en) * | 2014-10-16 | 2015-01-28 | 珠海格力电器股份有限公司 | Volute and fan comprising volute |
| CN204961415U (en) * | 2015-07-14 | 2016-01-13 | 柳州职业技术学院 | Fan silencer |
| CN204961404U (en) * | 2015-09-30 | 2016-01-13 | 界首市鑫洋机电有限公司 | Low -noise centrifugal fan |
| CN205908520U (en) * | 2016-08-03 | 2017-01-25 | 广东美的制冷设备有限公司 | Spiral case, fan and air conditioning equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |