CN207797165U - Range hood - Google Patents
Range hood Download PDFInfo
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- CN207797165U CN207797165U CN201721677680.6U CN201721677680U CN207797165U CN 207797165 U CN207797165 U CN 207797165U CN 201721677680 U CN201721677680 U CN 201721677680U CN 207797165 U CN207797165 U CN 207797165U
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- noise reduction
- reduction section
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- range hood
- muffler
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Abstract
The utility model discloses a kind of range hoods, which is characterized in that including：There is air outlet, the muffler to be arranged at the air outlet for smoke machine ontology and muffler, the smoke machine ontology, and the muffler includes multiple noise reduction sections being sequentially communicated, and the cross-sectional area of at least two sections noise reduction sections is different.Coordinated as a result, by smoke machine ontology and muffler, some noises of certain frequency can be weakened, the exhaust noise of range hood can effectively be reduced, the exhaust noise of range hood can be made to be improved, so as to reduce complete machine acoustical power, and then user satisfaction can be promoted.
Description
Technical field
The utility model is related to noise reduction technology field, more particularly to a kind of range hood.
Background technology
Range hood is a noise type product, and main noise source is exactly fan noise, induction noise and exhaust noise,
Improve the important channel that range hood exhaust noise is an improvement noise.
In the related technology, what the air outlet of existing range hood generally connect is smoke pipe, and exhaust noise does not obtain any place
Reason, fan noise and pneumatic noise can be transmitted directly, and noise will not be cut down, noise when working so as to cause range hood
It is larger.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model carries
Go out a kind of range hood, which can weaken some noises of certain frequency, can effectively reduce the row of range hood
Gas noise.
Range hood according to the present utility model includes：Smoke machine ontology and muffler, the smoke machine ontology have air outlet,
The muffler is arranged at the air outlet, and the muffler includes multiple noise reduction sections being sequentially communicated, at least described in two sections
The cross-sectional area of noise reduction section is different.
Range hood according to the present utility model is coordinated by smoke machine ontology and muffler, can weaken certain frequency
Some noises can effectively reduce the exhaust noise of range hood, the exhaust noise of range hood can be made to be improved, to
Complete machine acoustical power can be reduced, and then user satisfaction can be promoted.
Optionally, multiple noise reduction sections include：Into noise reduction section, intermediate noise reduction section and go out noise reduction section, the intermediate noise reduction
Section be connected to it is described into noise reduction section and it is described go out noise reduction section between, the intermediate noise reduction section is at least one section, at least described in one section
The cross-sectional area of intermediate noise reduction section be more than it is described into noise reduction section and it is described go out noise reduction section.
Further, described intermediate noise reduction Duan Weiyi sections, the cross section of the intermediate noise reduction section is rectangle.
Specifically, multiple noise reduction sections are odd number section, and the intermediate noise reduction section includes：Center noise reduction section, it is described into
Noise reduction section on the direction of the center noise reduction section, and it is described go out noise reduction section on the direction of the center noise reduction section, institute
The cross-sectional area for stating noise reduction section is in increasing trend；Or the intermediate noise reduction section is even number section, the intermediate noise reduction section includes：First
Center noise reduction section and the second center noise reduction section, compared to the second center noise reduction section, the first center noise reduction section is close to institute
State into noise reduction section, it is described into noise reduction section on the direction of the first center noise reduction section, and it is described go out noise reduction section to institute
On the direction for stating the second center noise reduction section, the cross-sectional area of the noise reduction section is in increasing trend.
Optionally, the axis into noise reduction section and it is described go out noise reduction section axis it is not conllinear.
Further, the intermediate noise reduction section includes：The first side wall and second sidewall being mutually parallel, it is described into noise reduction section
Close to the first side wall be arranged, it is described go out noise reduction section be arranged close to the second sidewall.
Specifically, the axis into noise reduction section, the intermediate noise reduction section axis and it is described go out noise reduction section axis position
In in same plane.
Optionally, it is described into noise reduction section and it is described go out noise reduction section cross section be circle.
Further, the periphery into noise reduction section is provided with multiple installation protrusions spaced apart.
Specifically, the muffler is integrally formed part.
Description of the drawings
Fig. 1 is the schematic diagram according to the range hood of the utility model embodiment；
Fig. 2 is the schematic diagram according to the muffler of the range hood of the utility model embodiment；
Fig. 3 is the sectional view according to the muffler of the range hood of the utility model embodiment.
Reference numeral：
Range hood 10；
Smoke machine ontology 1；
Muffler 2；Import 21；Outlet 22；
Noise reduction section 3；Into noise reduction section 31；Installation protrusion 311；Intermediate noise reduction section 32；The first side wall 321；Second sidewall 322；
Go out noise reduction section 33.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on ... shown in the drawings
Or position relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the utility model
System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more this feature.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
The range hood 10 according to the utility model embodiment is described in detail below with reference to Fig. 1-Fig. 3.
As shown in Figure 1-Figure 3, include according to the range hood of the utility model embodiment 10：Smoke machine ontology 1 and muffler
2, there is smoke machine ontology 1 air outlet, muffler 2 to be arranged at air outlet, and the gas in smoke machine ontology 1 can be entered from air outlet
In muffler 2, muffler 2 may include multiple noise reduction sections 3 being sequentially communicated, and the cross-sectional area of at least two sections noise reduction sections 3 is not
Together, it should be noted that the cross-sectional area of multiple noise reduction sections 3 being sequentially communicated can also be different from.
Wherein, the cross-sectional area of multiple noise reduction sections 3 of the muffler 2 is different, belongs to expanding noise elimination structure, this structure energy
The exhaust noise for enough improving range hood 10, when the gas in smoke machine ontology 1 is entered from air outlet in muffler 2, exhaust
Sound pass through multiple noise reduction sections 3 being sequentially communicated when, some noises of certain frequency can be weakened, and sound is made to become smaller.
Coordinated as a result, by smoke machine ontology 1 and muffler 2, some noises of certain frequency can be weakened, can effectively be dropped
The exhaust noise of low range hood 10 can be such that the exhaust noise of range hood 10 is improved, so as to reduce complete machine sound
Power, and then user satisfaction can be promoted.
Optionally, as shown in Figure 1-Figure 3, multiple noise reduction sections 3 may include：Into noise reduction section 31, intermediate noise reduction section 32 and go out
Noise reduction section 33, intermediate noise reduction section 32 are connected into noise reduction section 31 and between going out noise reduction section 33, and intermediate noise reduction section 32 is at least one
The cross-sectional area of section, at least one section intermediate noise reduction section 32 is more than into noise reduction section 31 and goes out noise reduction section 33, it is to be understood that intermediate
The quantity of noise reduction section 32 could be provided as being more than or equal to one section, more than into noise reduction section 31 and going out in the cross-sectional area of noise reduction section 33
Between noise reduction section 32 quantity can be more than or equal to one section, such setting can prevent sound to be directly delivered to from into noise reduction section 31
Go out noise reduction section 33, it is ensured that sound can be weakened in intermediate noise reduction section 32, thereby may be ensured that the working performance of muffler 2.
Further, intermediate noise reduction section 32 can be one section, and the cross section of intermediate noise reduction section 32 is rectangle, such setting
The structural strength of intermediate noise reduction section 32 is good, can promote the functional reliability of intermediate noise reduction section 32.
Specifically, when multiple noise reduction sections 3 are set as odd number section, intermediate noise reduction section 32 may include：Center noise reduction section, in
Heart noise reduction section refers to being located at most intermediate noise reduction section 3, and the quantity of the noise reduction section 3 of center noise reduction section both sides is equal, into disappearing
Segment 31 is on the direction of center noise reduction section, and is going out noise reduction section 33 on the direction of center noise reduction section, noise reduction section 3 it is transversal
Area is in increasing trend, and when sound into noise reduction section 31 from after entering in muffler 2, such setting can extend sound at center
Time in noise reduction section, so as to preferably weaken sound.
Wherein, when intermediate noise reduction section 32 is set as even number section, intermediate noise reduction section 32 may include：First center noise reduction section
With the second center noise reduction section, compared to the second center noise reduction section, the first center noise reduction section is arranged close into noise reduction section 31, also,
Second center noise reduction section close to go out noise reduction section 33 be arranged, into noise reduction section 31 on the direction of the first center noise reduction section, Yi Ji
Go out noise reduction section 33 on the direction of the second center noise reduction section, the cross-sectional area of noise reduction section 3 is in increasing trend, when sound is from into noise reduction
After section 31 enters in muffler 2, such setting can further extend time of the sound in center noise reduction section, so as to
Further weaken sound.
Optionally, into the axis of noise reduction section 31 and go out noise reduction section 33 axis it is not conllinear, moreover, the import 21 of muffler 2
Not on one wire with outlet 22, in shifting to install, setting in this way can prevent the sound being vented to be directly delivered to muffler 2
Outside thereby may be ensured that muffler 2 has noise reduction, and then can promote the functional reliability of muffler 2.
Further, as shown in figure 3, intermediate noise reduction section 32 may include：The first side wall 321 and the second side being mutually parallel
Wall 322 is arranged close to the first side wall 321 into noise reduction section 31, goes out noise reduction section 33 and be arranged close to second sidewall 322, such as：In being located at
Between the side wall in the left side of noise reduction section 32 be the first side wall 321, the side wall for being located at 32 right side of intermediate noise reduction section is second sidewall 322, such as
This setting can make the structure of muffler 2 more reasonable.
Specifically, into the axis of noise reduction section 31, intermediate noise reduction section 32 axis and go out noise reduction section 33 axis be located at it is same
In plane, also, as shown in figure 3, the area of the import 21 of the muffler 2 is small, centre is a big rectangular cavities, followed by
The outlet 22 of one small bore is less than the cross-sectional area of intermediate noise reduction section 32 into the cross-sectional area of noise reduction section 31, goes out noise reduction section 33
Cross-sectional area be less than intermediate noise reduction section 32 cross-sectional area, such setting can be further ensured that be set as expanding by muffler 2
Formula noise elimination structure is opened, thereby may be ensured that muffler 2 has good Noise Reduction.
Optionally, circle is could be provided as with the cross section for going out noise reduction section 33 into noise reduction section 31, it is circular into noise reduction section
31 and go out noise reduction section 33 ride comfort it is good, it is convenient into noise reduction section 31 and to go out noise reduction section 33 and assembled with other components, can make
Assembly is simply, conveniently.
Further, the installation protrusion 311 of multiple settings spaced apart is provided with into the periphery of noise reduction section 31, when muffler 2
When being assembled with smoke machine ontology 1,311 muffler 2 and smoke machine ontology 1 can be assembled together by installing protrusion, it can be with
Ensure that muffler 2 and the assembling structure of smoke machine ontology 1 are relatively reliable, stable, the work so as to promote range hood 10 can
By property.
Specifically, muffler 2 could be provided as being integrally formed part, and the structure for being integrally formed part is relatively reliable, stable, can
It prevents muffler 2 from cracking, the service life of muffler 2 can be extended.
The operation principle of muffler 2 is described in detail for range hood 10 shown in following FIG. 1.
When range hood 10 works, flue gas and noise are discharged from the air outlet of smoke machine ontology 1, then into muffler
In 2, specifically, flue gas and noise can be introduced into noise reduction section 31, then enter back into intermediate noise reduction section 32, due to
The cross-sectional area of intermediate noise reduction section 32 is more than the cross-sectional area into noise reduction section 31, and in this way during spatial variations, noise is able to
It reduces, then noise enters back into out noise reduction section 33, and the cross-sectional area due to going out noise reduction section 33 is less than the transversal of intermediate noise reduction section 32
Area, during such spatial variations, noise is minimized, and the noise finally gone out with flue gas emission is less, so oil suction
The noise that smoke machine 10 generates is relatively low.
In the whole process, flue gas and noise can be from small volumes to big volume, then to the process of small volume, this process can be with
Effectively reduce noise.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that：
Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
1. a kind of range hood, which is characterized in that including：Smoke machine ontology and muffler, the smoke machine ontology have air outlet, institute
It states muffler to be arranged at the air outlet, the muffler includes multiple noise reduction sections being sequentially communicated, and is at least disappeared described in two sections
The cross-sectional area of segment is different.
2. range hood according to claim 1, which is characterized in that multiple noise reduction sections include：Into noise reduction section, centre
Noise reduction section and go out noise reduction section, the intermediate noise reduction section be connected to it is described into noise reduction section and it is described go out noise reduction section between, the centre
Noise reduction section is at least one section, the cross-sectional area of at least one section intermediate noise reduction section be more than it is described into noise reduction section and it is described go out noise reduction
Section.
3. range hood according to claim 2, which is characterized in that described intermediate noise reduction Duan Weiyi sections, the centre disappears
The cross section of segment is rectangle.
4. range hood according to claim 2, which is characterized in that multiple noise reduction sections are odd number section, the centre
Noise reduction section includes：Center noise reduction section, it is described into noise reduction section on the direction of the center noise reduction section, and it is described go out noise reduction
For section on the direction of the center noise reduction section, the cross-sectional area of the noise reduction section is in increasing trend；Or
The intermediate noise reduction section is even number section, and the intermediate noise reduction section includes：First center noise reduction section and the second center noise reduction section,
Compared to the second center noise reduction section, the first center noise reduction section close to described into noise reduction section, it is described into noise reduction section to
On the direction of the first center noise reduction section, and it is described go out noise reduction section on the direction of the second center noise reduction section, institute
The cross-sectional area for stating noise reduction section is in increasing trend.
5. range hood according to claim 2, which is characterized in that the axis into noise reduction section and it is described go out noise reduction section
Axis it is not conllinear.
6. range hood according to claim 5, which is characterized in that the intermediate noise reduction section includes：To be mutually parallel
One side wall and second sidewall, it is described to be arranged into noise reduction section close to the first side wall, it is described go out noise reduction section close to the second side
Wall is arranged.
7. range hood according to claim 5, which is characterized in that the axis into noise reduction section, the intermediate noise reduction
Section axis and it is described go out noise reduction section axis be generally aligned in the same plane in.
8. range hood according to claim 2, which is characterized in that it is described into noise reduction section and it is described go out noise reduction section it is transversal
Face is circle.
9. range hood according to claim 2, which is characterized in that the periphery into noise reduction section is provided with multiple intervals
The installation protrusion opened.
10. range hood according to claim 1, which is characterized in that the muffler is integrally formed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677680.6U CN207797165U (en) | 2017-12-04 | 2017-12-04 | Range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677680.6U CN207797165U (en) | 2017-12-04 | 2017-12-04 | Range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207797165U true CN207797165U (en) | 2018-08-31 |
Family
ID=63283315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721677680.6U Active CN207797165U (en) | 2017-12-04 | 2017-12-04 | Range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207797165U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869774A (en) * | 2017-12-04 | 2019-06-11 | 美的集团股份有限公司 | Range hood |
-
2017
- 2017-12-04 CN CN201721677680.6U patent/CN207797165U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869774A (en) * | 2017-12-04 | 2019-06-11 | 美的集团股份有限公司 | Range hood |
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