CN108612880B - Range hood check valve and range hood - Google Patents
Range hood check valve and range hood Download PDFInfo
- Publication number
- CN108612880B CN108612880B CN201810522979.7A CN201810522979A CN108612880B CN 108612880 B CN108612880 B CN 108612880B CN 201810522979 A CN201810522979 A CN 201810522979A CN 108612880 B CN108612880 B CN 108612880B
- Authority
- CN
- China
- Prior art keywords
- range hood
- sound absorbing
- check valve
- baffle
- holes
- 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.)
- Active
Links
- 239000000779 smoke Substances 0.000 claims abstract description 15
- 239000006260 foam Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000011358 absorbing material Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000011152 fibreglass Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 21
- 239000006096 absorbing agent Substances 0.000 abstract 5
- 239000006233 lamp black Substances 0.000 abstract 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
- F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of household appliances, in particular to a range hood check valve and a range hood. The lampblack absorber check valve is installed on the lampblack absorber main part, includes: a valve seat having an exhaust passage for passing oil smoke in the range hood body; the separation blade subassembly is installed on exhaust passage for prevent the oil smoke backward flow through exhaust passage, wherein, the separation blade subassembly includes the separation blade, and install on the separation blade, be used for carrying out the sound absorbing structure of inhaling the sound to the oil smoke air current through exhaust passage, and then through setting up the sound absorbing structure on the separation blade on the lampblack absorber disk seat, absorb the noise that the lampblack absorber fan system produced by inhaling the sound structure, and then need not to improve the structure of lampblack absorber fan system and just can further reduce the noise that the fan system produced.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a range hood check valve and a range hood.
Background
At present, along with the improvement of the living standard of people and the acceleration of the living rhythm, people pay more attention to the quality of living home, and kitchen household appliances with high silence are more and more favored by consumers. In the operation process of the range hood, noise is inevitably produced, and the range hood noise is reduced to a decibel range where people cannot feel conscious, so that high requirements are put forward on the production design technology of the range hood.
In the prior art, noise of the range hood is mainly derived from a fan system, and various noise sources exist simultaneously, such as aerodynamic noise, electromagnetic noise, mechanical noise and bearing noise in the fan system, for this reason, in the prior art, noise generated in the running process of the fan system is generally reduced by improving the blade shape and the precision of fan blades in the fan system and improving the installation and manufacturing precision of bearings, but noise still exists in the fan system in the actual running process, and in this regard, noise is also difficult to reduce by further fan blade and bearing structures in the prior art.
Disclosure of Invention
The invention mainly aims to provide a range hood check valve and a range hood, so as to reduce noise generated in the operation process of a range hood fan system.
In order to achieve the above object, the present invention provides a check valve for a range hood, which is installed on a main body of the range hood, comprising: a valve seat having an exhaust passage for passing oil smoke in the range hood body; the separation blade assembly is installed on exhaust passage, is used for preventing the oil smoke that passes through exhaust passage flows backwards, wherein, the separation blade assembly includes the separation blade, and installs on the separation blade, be used for absorbing the sound structure of inhaling of oil smoke air current through exhaust passage.
Further, the sound absorbing structure comprises sound absorbing holes formed in the baffle.
Further, the sound absorbing holes are integrally formed on the baffle plate.
Further, the sound absorbing holes are round holes, square holes, elliptical holes or diamond holes.
Further, the sound absorbing structure further includes a sound absorbing pad provided on the baffle and made of a sound absorbing material.
Further, the sound absorbing pad is made of sound absorbing cotton, multi-element grease foam, glass fiber or foam plastic.
Further, the sound absorbing pad is fixed on the baffle plate in a sticking mode.
Further, the flap assembly further comprises: a bracket fixed on the valve seat; the rotating shaft is arranged on the bracket; the baffle plates are arranged on the rotating shaft and comprise a first baffle plate and a second baffle plate which can jointly block the exhaust channel, and the first baffle plate and the second baffle plate can rotate and stand up when forward airflow passes through.
Further, the thickness of the sound absorbing pad is smaller than the gap between the first and second baffle plates.
Further, the number of layers of the baffle plates is multiple, and sound absorption holes on two adjacent baffle plates are staggered.
Further, the gap between the multi-layer baffle plates is between 0mm and 1 mm.
Further, the baffle is formed with an oil-free coating.
The application also provides a range hood, including range hood main part and range hood check valve, the range hood check valve is as above.
The technical scheme of the invention has the following advantages:
according to the range hood check valve and the range hood, the sound absorbing structure is arranged on the baffle plate on the valve seat of the range hood, and the sound absorbing structure absorbs noise generated by a range hood system of the range hood, so that the noise generated by the range hood system can be further reduced without improving the structure of the range hood system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic diagram of a perspective structure of a range hood according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a check valve in the range hood shown in fig. 1;
FIG. 3 is a schematic side view of the check valve of the range hood of FIG. 1, wherein the flap is in a closed position;
FIG. 4 is an enlarged schematic view of the check valve of FIG. 3 at section A;
fig. 5 is a schematic side view of a check valve in the range hood of fig. 1, wherein the flap is in an open state.
Wherein, the reference numerals in the drawings are as follows:
10. a range hood main body; 20. a valve seat; 21. an exhaust passage; 30. a flap assembly; 31. a first baffle; 32. a second baffle; 33. a rotating shaft; 34. a bracket; 35. a torsion spring; 36. a sound absorbing pad; 37. and the sound absorption holes are formed in the base.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, the check valve of the range hood in the present embodiment is mounted on the main body 10 of the range hood, and mainly includes a valve seat 20 and a flap assembly 30.
The valve seat 20 is provided with an exhaust channel 21 for the oil smoke in the range hood main body 10 to pass through, one end of the exhaust channel 21 is communicated with a fan system in the range hood, and the other end of the exhaust channel is communicated with a chimney outside the range hood, so that the oil smoke sucked by the fan system can be discharged into the chimney. The separation blade assembly 30 is installed in the exhaust passage 21 on the valve seat 20 for prevent the oil smoke through the exhaust passage 21 from flowing backwards from the chimney into the range hood main body 10, wherein, the separation blade assembly 30 in this embodiment includes the separation blade, and install on the separation blade, be used for carrying out the sound absorbing structure who inhales to the oil smoke air current through the exhaust passage 21, through set up the sound absorbing structure on the separation blade on the range hood valve seat 20, absorb the noise that the range hood fan system produced by sound absorbing structure, and then need not to improve the structure of range hood fan system and just can further reduce the noise that the fan system produced.
As shown in fig. 3 to 5, the baffle assembly 30 in this embodiment is specifically installed at one end of the valve seat 20 near the chimney, and opens the exhaust passage 21 toward the chimney when the fume flow passes through the fan system, and closes the exhaust passage 21 when the fume flow does not pass through the fan system, so as to prevent the fume in the chimney from flowing back into the range hood.
The flap assembly 30 generally includes a bracket 34 secured to the valve seat 20; a rotating shaft 33 mounted on a bracket 34; wherein, the separation blade is installed on pivot 33, including first separation blade 31 and the second separation blade 32 that can block off exhaust passage 21 jointly, first separation blade 31 and second separation blade 32 can rotate when positive air current passes through and erect, and then can reduce the space that the separation blade occupied when standing, be convenient for open the separation blade completely. Specifically, a torsion spring 35 serving as a reset piece is further installed on the rotating shaft 33, and after the fan system stops conveying the oil smoke air flow, the first baffle plate 31 and the second baffle plate 32 are reset to be in a flat state under the elastic acting force of the torsion spring 35, so that the exhaust channel 21 is closed.
With further reference to fig. 2, the sound absorbing structure in this embodiment includes sound absorbing holes 37 formed on the baffle, and for noise of the oil smoke flow in the fan system, the sound waves will be reflected in the sound absorbing holes 37 when passing through the check valve, so as to convert the sound energy into heat energy, and further reduce the noise of the fan system of the range hood.
The sound absorbing holes 37 are integrally formed on the baffle plate, so that the manufacturing cost of the check valve can be reduced while the sound absorbing effect of the sound absorbing holes 37 is ensured. In practical application, the sound absorbing holes 37 may be regular or irregular holes such as round holes, square holes, elliptical holes or diamond holes. The material of the baffle plate can be sheet metal, plastic or other multi-mesh materials which are convenient to mold.
Preferably, the non-stick oil coating can be attached to the baffle, and the non-stick oil layer is a UGT nano layer or a Teflon layer or other non-limiting forms of the non-stick oil coating which can play a role in non-stick oil, so that greasy dirt on the baffle can be reduced, and the use effect of the baffle is improved.
In a modified embodiment, the number of layers of the baffle plates is multiple, for example, two layers, and the sound absorbing holes 37 on adjacent baffle plates are staggered, so that the propagation path of noise can be lengthened, and the effect of reducing the noise of the fan system is better. The multi-layer baffle plates can be fixed by adopting fastening, positioning, separating and other fixing modes.
Preferably, the gaps between the plurality of baffle plates are between 0mm and 1mm, too small gaps easily result in a space where sound waves are not transmitted, and too large gaps result in poor sound absorption effects of the plurality of sound absorption holes 37.
Referring further to fig. 2, the sound absorbing structure in this embodiment further includes a sound absorbing pad 36 disposed on the baffle, where the sound absorbing pad 36 is made of a sound absorbing material, such as a sound absorbing cotton, a polyester foam, a glass fiber or a foam, and the noise reduction in the fan system can be achieved by using the characteristics of the sound absorbing pad 36 itself.
Preferably, the baffle in this embodiment is provided with the sound absorbing hole 37 and the sound absorbing pad 36 simultaneously, so that the effect of reducing noise is ensured, and the baffle can also play a role in preventing the backflow of the oil smoke air flow when being closed, so that the check valve in the range hood can better play a role in preventing the backflow of the air flow.
Specifically, the sound absorbing pad 36 in the present embodiment is fixed to the baffle by means of adhesion, or may be fixed to the baffle by means of a detent.
For the scheme that the gasket adopts the first baffle 31 and the second baffle 32, the thickness of the sound absorbing pad 36 is preferably smaller than the clearance between the first baffle 31 and the second baffle 32, so that the first baffle 31 and the second baffle 32 can be normally opened during working.
The present embodiment also provides a range hood, including a range hood main body 10 and a range hood check valve, where the range hood check valve is a range hood check valve as described above, and further the range hood check valve has advantages, and the range hood in the present embodiment should also have advantages, which are not described herein.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. A range hood check valve mounted on a range hood main body (10), comprising:
a valve seat (20) having an exhaust passage (21) for passing the fume in the range hood body (10);
a baffle assembly (30) mounted on the exhaust passage (21) for preventing reverse flow of the oil smoke passing through the exhaust passage (21), wherein the baffle assembly (30) comprises a baffle and a sound absorbing structure mounted on the baffle for absorbing the oil smoke passing through the exhaust passage (21); the sound absorbing structure comprises sound absorbing holes (37) formed in the baffle;
the number of layers of the baffle plates is multiple, and sound absorption holes (37) on two adjacent baffle plates are staggered;
the sound absorbing structure further includes a sound absorbing pad (36) provided on the baffle and made of a sound absorbing material.
2. The range hood check valve according to claim 1, characterized in that the sound absorbing holes (37) are integrally formed on the baffle.
3. The range hood check valve according to claim 1, characterized in that the sound absorbing holes (37) are round holes, square holes, elliptical holes or diamond holes.
4. The range hood check valve of claim 1, wherein the sound absorbing pad (36) is a sound absorbing cotton, a multi-grease foam, a fiberglass or a foam.
5. The range hood check valve according to claim 1, wherein the sound absorbing pad (36) is fixed to the flap by means of adhesive.
6. The range hood check valve of claim 1, wherein the flap assembly (30) further comprises: a bracket (34) fixed to the valve seat (20); a rotating shaft (33) mounted on the bracket (34); the baffle plates are arranged on the rotating shaft (33) and comprise a first baffle plate (31) and a second baffle plate (32) which can jointly block the exhaust channel (21), and the first baffle plate (31) and the second baffle plate (32) can rotate and stand up when forward airflow passes through.
7. The range hood check valve according to claim 6, wherein the thickness of the sound absorbing pad (36) is smaller than the gap between the first and second raised flaps (31, 32).
8. The range hood check valve of claim 1, wherein the gap between the multiple layers of flaps is between 0mm and 1 mm.
9. A range hood check valve according to any one of claims 1 to 3 wherein the flap is formed with a non-stick coating.
10. A range hood comprising a hood body (10) and a hood check valve, characterized in that the hood check valve is a hood check valve according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522979.7A CN108612880B (en) | 2018-05-28 | 2018-05-28 | Range hood check valve and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522979.7A CN108612880B (en) | 2018-05-28 | 2018-05-28 | Range hood check valve and range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108612880A CN108612880A (en) | 2018-10-02 |
| CN108612880B true CN108612880B (en) | 2024-03-29 |
Family
ID=63664284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810522979.7A Active CN108612880B (en) | 2018-05-28 | 2018-05-28 | Range hood check valve and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612880B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288191B (en) * | 2020-02-21 | 2022-02-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Check valve for range hood and range hood with check valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201827389U (en) * | 2010-09-20 | 2011-05-11 | 天工阀门集团有限公司 | Low noise butterfly valve |
| CN102748787A (en) * | 2012-06-15 | 2012-10-24 | 海尔集团公司 | Low noise range hood equipped with diversion noise reducing acoustical panel |
| CN204004599U (en) * | 2014-03-27 | 2014-12-10 | 珠海格力电器股份有限公司 | Range hood safety check and range hood |
| CN206234879U (en) * | 2016-10-13 | 2017-06-09 | 火星人厨具股份有限公司 | A kind of absorbing sound and lowering noise structure of integrated kitchen range |
| CN206556093U (en) * | 2017-02-21 | 2017-10-13 | 南京宏润声学科技有限公司 | Smoke exhaust silencer |
| CN208348588U (en) * | 2018-05-28 | 2019-01-08 | 珠海格力电器股份有限公司 | Kitchen ventilator check-valves and kitchen ventilator |
-
2018
- 2018-05-28 CN CN201810522979.7A patent/CN108612880B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201827389U (en) * | 2010-09-20 | 2011-05-11 | 天工阀门集团有限公司 | Low noise butterfly valve |
| CN102748787A (en) * | 2012-06-15 | 2012-10-24 | 海尔集团公司 | Low noise range hood equipped with diversion noise reducing acoustical panel |
| CN204004599U (en) * | 2014-03-27 | 2014-12-10 | 珠海格力电器股份有限公司 | Range hood safety check and range hood |
| CN206234879U (en) * | 2016-10-13 | 2017-06-09 | 火星人厨具股份有限公司 | A kind of absorbing sound and lowering noise structure of integrated kitchen range |
| CN206556093U (en) * | 2017-02-21 | 2017-10-13 | 南京宏润声学科技有限公司 | Smoke exhaust silencer |
| CN208348588U (en) * | 2018-05-28 | 2019-01-08 | 珠海格力电器股份有限公司 | Kitchen ventilator check-valves and kitchen ventilator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108612880A (en) | 2018-10-02 |
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