CN108240646A - A kind of noise reducing type outlet housing of range hood - Google Patents
A kind of noise reducing type outlet housing of range hood Download PDFInfo
- Publication number
- CN108240646A CN108240646A CN201711045298.8A CN201711045298A CN108240646A CN 108240646 A CN108240646 A CN 108240646A CN 201711045298 A CN201711045298 A CN 201711045298A CN 108240646 A CN108240646 A CN 108240646A
- Authority
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- China
- Prior art keywords
- cover
- inner cover
- pedestal
- outer cover
- range hood
- 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.)
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000009467 reduction Effects 0.000 claims abstract description 40
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 238000003032 molecular docking Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The noise reducing type outlet housing of a kind of range hood, including pedestal, it is characterised in that：Inner cover, outer cover and outlet air mouth circle are further included, multiple noise reduction holes are provided on the peripheral wall of inner cover, gap is formed between inner cover and outer cover, inner cover and outer cover are removably mounted between pedestal and outlet air mouth circle, also, the noise reduction cavity that inner cover, outer cover, pedestal and outlet housing enclosing circularize.The advantage of the invention is that：The noise reducing type outlet housing of the range hood on the peripheral wall of inner cover by being provided with multiple noise reduction holes, and the noise reduction cavity that inner cover, outer cover, pedestal and outlet housing enclosing circularize, noise reduction can be realized using Helmholz resonance noise reduction principle, noise reduction sound-deadening effect is good, in addition, the present invention can realize fan housing modularization since inner cover and outer cover are removably mounted between pedestal and outlet air mouth circle, can realize the noise reduction to various forms of range hoods by the collocation of different inner cover and outer cover.
Description
Technical field
The present invention relates to a kind of outlet housing of range hood, more particularly, to a kind of noise reducing type outlet housing of range hood.
Background technology
The Chinese way of cooking can generate a large amount of oil smoke, and to keep the health of kitchen environment cleaning and human body, range hood has become
For one of essential equipment in Modern Family kitchen.Range hood sucks gas in its air inlet in the process of running, via
Fan outlet discharges gas.Existing range hood is generally fitted with outlet housing in fan outlet, and outlet housing has
The effect of gather qi together water conservancy diversion, connection range hood and discharge pipe.The air-flow that wind turbine generates finally is required for converging in outlet housing, this
The air-flow in outlet housing is just made excessively to concentrate, the air motion in cover body generates turbulent flow and makes a noise, and then influences people's
Culinary art experience and health.
In order to reduce the noise generated when air-flow flows through outlet housing, people improve the structure of outlet housing.As specially
Profit number is disclosed in the Chinese invention patent of 200810061936.X (Authorization Notice No. is 101294725 B of CN)《With having
The ventilator air outlet cover of source decrease of noise functions》, the outlet housing include cover body, cover body tool there are one air outlet and with spiral case outlet air end
The air inlet of mouth connection, the peripheral wall of cover body is shiny surface, and peripheral wall has upwardly extended volute tongue by air inlet.Although the outlet housing leads to
It crosses after cover body peripheral wall designs volute tongue, the spiral case being connect with outlet housing outlet air port can be made without in addition designing volute tongue, structure
Simplify, and the active noise reduction function of outlet housing is realized using volute tongue, still, which passes through volute tongue noise reduction, noise reduction
Effect is general, and versatility is poor.For another example (Authorization Notice No. is CN 205536022 to Patent No. 201620102678.5
U disclosed in Chinese utility model patent)《A kind of outlet housing for range hood》, the outlet housing include cover body bottom and
Cover body head, cover body bottom are air intake, and cover body head is outlet air end, and multiple through-holes are provided on the peripheral wall on cover body head and are made
Cover body head is partly or wholly in mesh-structured.Although the outlet housing by during wind turbine air draft to the injection of surrounding air, mix
It mixes and reaches noise reduction, still, the noise reduction reached by injection, blending is poor, and the outlet housing versatility is poor.It is comprehensive
It is upper described, need to be further improved existing outlet air cover structure.
Invention content
The technical problems to be solved by the invention are present situations for the above-mentioned prior art, provide a kind of excellent noise reduction effect and logical
With the noise reducing type outlet housing of the good range hood of property.
Technical solution is used by the present invention solves above-mentioned technical problem：The noise reducing type outlet housing of the range hood, packet
Include pedestal, it is characterised in that：Inner cover, outer cover and outlet air mouth circle have been further included, multiple noise reductions are provided on the peripheral wall of the inner cover
Hole is formed with gap between the inner cover and outer cover, inner cover and outer cover are removably mounted between pedestal and outlet air mouth circle, and
And the noise reduction cavity that the inner cover, outer cover, pedestal and outlet housing enclosing circularize.
Preferably, the inner cover and outer cover are cylindrical, also, the gap between inner cover and outer cover is in a circumferential direction
Size is identical.In this way, noise reduction cavity forms parallel Helmholz resonance chamber, noise reduction is more preferable.
Outer cover can be there are many structure, it is preferable that the outer cover includes the first cover body and the second cover body, first cover
Body and the second cover body are in semi-circular cylindrical and opposite splicing.
Outer cover can be there are many mounting structure, it is preferable that rendezvous method is equipped at first cover body and the second cover body docking
The abutted flange of orchid, the first cover body and the second cover body is fastened by screw, is all provided on the pedestal and in outlet air mouth circle useful
Come the outer cover fixed seat being connected with the abutted flange.
It is tightly connected in order to which inner cover is made to be formed with pedestal, air outlet circle, it is preferable that be molded in the bottom of the outlet air mouth circle
There is upper sealing ring, lower sealing ring is formed on the pedestal, the upper sealing ring is sealedly connected at the top of the inner cover
On, the sealed bottom of the inner cover is connected on the lower sealing ring.
It can be there are many position limiting structure between inner cover and pedestal, outlet air mouth circle, it is preferable that at the top of the inner cover and bottom
Portion forms limiting slot, and the limited block for mutually limiting cooperation with the limiting slot is formed on pedestal and outlet air mouth circle.
As another connection mode of inner cover, outer cover, the inner cover and outer cover are commonly connected to institute by the first screw
In the outlet air mouth circle stated, the inner cover and outer cover are commonly connected to by the second screw on the bottom.
As inner cover and pedestal, another connection mode of outlet air mouth circle, the pedestal and outlet air mouth circle are equipped with buckle,
Card base is formed on the corresponding position of the inner cover, the inner cover makes card base be connected on corresponding buckle by rotating.
Noise reduction hole can be there are many form, and as a preferred embodiment, the noise reduction hole is circular hole, and percent opening is
0.5%~6%.
As another preferred embodiment in noise reduction hole, the noise reduction hole be vertically arranged bar hole, bar hole it is upper
The neighbouring outlet air mouth circle in end, the lower end of bar hole is adjacent to the pedestal.
Compared with prior art, the advantage of the invention is that：The noise reducing type outlet housing of the range hood passes through in inner cover
Multiple noise reduction holes, and the noise reduction cavity that inner cover, outer cover, pedestal and outlet housing enclosing circularize are provided on peripheral wall, conspicuous nurse can be utilized
Huo Zi resonates noise reduction principle to realize noise reduction, and noise reduction sound-deadening effect is good, in addition, the present invention removably pacifies due to inner cover and outer cover
It between pedestal and outlet air mouth circle, thus can realize fan housing modularization, the collocation of different inner cover and outer cover can be passed through
To realize the noise reduction to various forms of range hoods.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention one
Fig. 2 is the perspective exploded view of the embodiment of the present invention one；
Fig. 3 is the assembling structure schematic diagram of the embodiment of the present invention one；
Fig. 4 is the perspective exploded view of assembling structure shown in Fig. 3；
Fig. 5 is the structure diagram of the range hood for the outlet housing for being equipped with the embodiment of the present invention one；
Fig. 6 is the structure diagram of the embodiment of the present invention two；
Fig. 7 is two structure sectional view of the embodiment of the present invention；
Fig. 8 is the inner cover mounting structure schematic diagram of the embodiment of the present invention three.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
As shown in Figures 1 to 5, the noise reducing type outlet housing of the range hood in the present embodiment includes pedestal 1, inner cover 2, outer cover
3rd, the primary clusterings such as outlet air mouth circle 4.Wherein, multiple noise reduction holes 21, shape between inner cover 2 and outer cover 3 are provided on the peripheral wall of inner cover 2
Into there is gap, inner cover 2 and outer cover 3 are removably mounted between pedestal 1 and outlet air mouth circle 4, also, inner cover 2, outer cover 3, pedestal
1 and outlet housing 4 enclose the noise reduction cavity 5 that circularizes.In the present embodiment, inner cover 2 and outer cover 3 are cylindrical, also, inner cover 2 with
Size is identical in a circumferential direction in gap between outer cover 3, forms parallel Helmholtz between inner cover 2 and outer cover 3 as a result, and is total to
Shake chamber.
In the present embodiment, the mounting structure of outer cover 3 is as follows：Outer cover 3 includes the first cover body 31 and the second cover body 32, the first cover
31 and second cover body 32 of body is in semi-circular cylindrical and opposite splicing.Rendezvous method is equipped at 32 docking of first cover body 31 and the second cover body
The abutted flange 33 of orchid 33, the first cover body 31 and the second cover body 32 is fastened by screw 34, on pedestal 1 and in outlet air mouth circle 4
Be equipped with outer cover fixed seat 6, after the abutted flange 33 of the first outer cover 31 and the second outer cover 32 is connected to each other, abutted flange 33 up and down
Both ends are separately fixed in corresponding outer cover fixed seat 6.
In the present embodiment, the mounting structure of inner cover 2 is as follows：Upper sealing ring 41 is formed in the bottom of outlet air mouth circle 4, the bottom of at
Lower sealing ring 11 is formed on seat 1, the top of inner cover 2 is sealedly connected on upper sealing ring 41, and the sealed bottom of inner cover 2 is connected in down
On sealing ring 11.In addition, in order to be limited to inner cover 2, limiting slot 22 is formed in the top and bottom of inner cover 2, the bottom of at
It is formed on seat 1 and outlet air mouth circle 4 for the limited block 7 with the limiting cooperation of 22 phase of limiting slot, during installation, limited block 7 is inserted into pair
In the limiting slot 22 answered, you can inner cover 2 is limited, position limiting structure is very simple.
The noise reduction hole 21 of the present embodiment is circular hole, and circular hole is uniformly distributed on 2 wall surface of inner cover, and the general value of percent opening is
0.5%~6%.
As shown in figure 5, the noise reducing type outlet housing is mounted on range hood, the diameter of the outer cover 3 of the noise reducing type outlet housing
For D2, a diameter of D1 of inner cover 2, then outer cover 3 is with built-in 2 gapParallel Helmholz resonance is consequently formed
Chamber.In the present embodiment,10~200mm of general value.In addition, according to Helmholz resonance principle, outer cover 3 and built-in 2
Gap is bigger, and the resonant frequency of noise reduction cavity is smaller, conversely, gap is smaller, resonant frequency is bigger；Percent opening is bigger, resonant frequency
Bigger, percent opening is lower, and resonant frequency is lower.
The noise reducing type outlet housing can be realized general on various forms of range hoods, be exemplified below：
There are range hood model A and model B, the wherein noise frequency of A is more than the noise frequency of B, it is assumed that the present invention is in type
It has been adapted to, and play good noise reduction in number A, when needing to apply it in model B, due to the noise frequency of model B
Rate is less than model A, therefore it may only be necessary to replace outer cover 3, the diameter D2 of outer cover 3 is made to become larger, and after D2 becomes larger, resonant frequency f becomes
It is small, it can be adapted to model B at this time.Can also replacement inner cover, only need replacing the smaller inner cover 2 of percent opening at this time, resonance frequency
Rate f becomes smaller, it is possible to be adapted to model B.
Embodiment two：
As shown in Figure 6 and Figure 7, the inner cover 2 of the noise reducing type outlet housing in the present embodiment and outer cover 3 are common by the first screw 81
With being connected in outlet air mouth circle 4, inner cover 2 and outer cover 3 are commonly connected to by the second screw 82 on pedestal 1, inner cover 2 and outer cover 3
Between formed noise reduction cavity 5.I.e. the upper periphery of inner cover 2 and following peripheral are equipped with outwardly extending outer lug 23, the upper periphery of outer cover 3
The internal lobes 35 to extend internally are equipped with following peripheral, the first mounting hole 42 are provided on the position of outlet air mouth circle 4, in pedestal 1
Corresponding position on be provided with the second mounting hole 12, the first screw 81 passes through the first mounting hole 42 and is fastened on corresponding convex
On ear 35 and outer lug 23, the second screw 82 passes through the second mounting hole 12 and is connected to corresponding internal lobes 35 and outer lug 23
On.
Embodiment three：
As shown in figure 8, the interior hood mounting structure of the outlet housing in the present embodiment is as follows：Pedestal 1 and outlet air mouth circle 4 are equipped with
Buckle 9 forms card base 24 on the corresponding position of inner cover 2, when installing inner cover 2, rotates inner cover 2, card base 24 is made to be connected to correspondence
Buckle 9 on can be completed, installation and removal it is very convenient.The cover mounting structure of the present embodiment can with reference implementation example one,
Not reinflated description herein.
The foregoing is merely the preferred embodiment of the present invention, it is noted that for those of ordinary skills,
Under the premise of the principle of the present invention is not departed from, a variety of remodeling or improvement can be carried out to the present invention, for example, noise reduction hole 21 can be into
Square profile triangular in shape can also be distributed, and noise reduction hole 21 is in addition to that using other than circular hole, can also use square hole, for example, can be with
Vertically arranged bar hole is adopted as, the upper end of bar hole is adjacent to outlet air mouth circle 4, and the lower end proximate base 1 of bar hole, these are
It is considered as within protection scope of the present invention.
Claims (10)
1. a kind of noise reducing type outlet housing of range hood, including pedestal (1), it is characterised in that：Inner cover (2), outer cover are further included
(3) and outlet air mouth circle (4) multiple noise reduction holes (21), the inner cover (2) and outer cover (3), are provided on the peripheral wall of the inner cover (2)
Between be formed with gap, inner cover (2) and outer cover (3) are removably mounted between pedestal (1) and outlet air mouth circle (4), also, institute
State the noise reduction cavity (5) that inner cover (2), outer cover (3), pedestal (1) and outlet housing (4) enclosing circularize.
2. the noise reducing type outlet housing of range hood according to claim 1, it is characterised in that：The inner cover (2) and outer cover
(3) it is cylindrical, also, size is identical in a circumferential direction for the gap between inner cover (2) and outer cover (3).
3. the noise reducing type outlet housing of range hood according to claim 1, it is characterised in that：The outer cover (3) includes
First cover body (31) and the second cover body (32), first cover body (31) and the second cover body (32) are in semi-circular cylindrical and opposite spelling
It connects.
4. the noise reducing type outlet housing of range hood according to claim 3, it is characterised in that：First cover body (31) and
Abutted flange (33) is equipped at second cover body (32) docking, the abutted flange (33) of the first cover body (31) and the second cover body (32) leads to
Screw (34) fastening is crossed, is equipped on the pedestal (1) and in outlet air mouth circle (4) for being connected with the abutted flange (33)
The outer cover fixed seat (6) connect.
5. the noise reducing type outlet housing of range hood according to claim 1, it is characterised in that：In the outlet air mouth circle (4)
Bottom form upper sealing ring (41), lower sealing ring (11), the top of the inner cover (2) are formed on the pedestal (1)
It is sealedly connected on the upper sealing ring (41), the sealed bottom of the inner cover (2) is connected on the lower sealing ring (11).
6. the noise reducing type outlet housing of range hood according to claim 5, it is characterised in that：On the top of the inner cover (2)
Portion and bottom form limiting slot (22), formed on pedestal (1) and outlet air mouth circle (4) for the limiting slot (22)
The mutually limited block (7) of limiting cooperation.
7. the noise reducing type outlet housing of range hood according to claim 1, it is characterised in that：The inner cover (2) and outer cover
(3) it is commonly connected to by the first screw (81) in the outlet air mouth circle (4), the inner cover (2) and outer cover (3) pass through second
Screw (82) is commonly connected on the pedestal (1).
8. the noise reducing type outlet housing of range hood according to claim 1, it is characterised in that：The pedestal (1) and outlet air
Mouth circle (4) is equipped with buckle (9), forms card base (24) on the corresponding position of the inner cover (2), the inner cover (2) passes through rotation
Then card base (24) is made to be connected on corresponding buckle (9).
9. the noise reducing type outlet housing of the range hood according to any claim in claim 1 to 8, it is characterised in that：
The noise reduction hole (21) is circular hole, and percent opening is 0.5%~6%.
10. the noise reducing type outlet housing of the range hood according to any claim in claim 1 to 8, it is characterised in that：
The noise reduction hole (21) is vertically arranged bar hole, the upper end of bar hole adjacent to the outlet air mouth circle (4), bar hole
Lower end is adjacent to the pedestal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045298.8A CN108240646A (en) | 2017-10-31 | 2017-10-31 | A kind of noise reducing type outlet housing of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045298.8A CN108240646A (en) | 2017-10-31 | 2017-10-31 | A kind of noise reducing type outlet housing of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108240646A true CN108240646A (en) | 2018-07-03 |
Family
ID=62700926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711045298.8A Withdrawn CN108240646A (en) | 2017-10-31 | 2017-10-31 | A kind of noise reducing type outlet housing of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108240646A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373396A (en) * | 2018-11-27 | 2019-02-22 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator with noise interference device |
| CN109373398A (en) * | 2018-11-27 | 2019-02-22 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator exhaust nozzle pipe with noise interference device |
| CN109373402A (en) * | 2018-11-27 | 2019-02-22 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator exhaust nozzle pipe of the embedded noise interference device of band |
| CN109373397A (en) * | 2018-11-27 | 2019-02-22 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator exhaust nozzle pipe of band self-regulation noise interference device |
| CN116780812A (en) * | 2023-08-14 | 2023-09-19 | 西门子(天津)传动设备有限责任公司 | Amortization structure and motor |
-
2017
- 2017-10-31 CN CN201711045298.8A patent/CN108240646A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373396A (en) * | 2018-11-27 | 2019-02-22 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator with noise interference device |
| CN109373398A (en) * | 2018-11-27 | 2019-02-22 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator exhaust nozzle pipe with noise interference device |
| CN109373402A (en) * | 2018-11-27 | 2019-02-22 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator exhaust nozzle pipe of the embedded noise interference device of band |
| CN109373397A (en) * | 2018-11-27 | 2019-02-22 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator exhaust nozzle pipe of band self-regulation noise interference device |
| CN116780812A (en) * | 2023-08-14 | 2023-09-19 | 西门子(天津)传动设备有限责任公司 | Amortization structure and motor |
| CN116780812B (en) * | 2023-08-14 | 2024-01-16 | 西门子(天津)传动设备有限责任公司 | Amortization structure and motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180703 |