CN204963366U - Refrigerator and air duct plate thereof - Google Patents
Refrigerator and air duct plate thereof Download PDFInfo
- Publication number
- CN204963366U CN204963366U CN201520644076.8U CN201520644076U CN204963366U CN 204963366 U CN204963366 U CN 204963366U CN 201520644076 U CN201520644076 U CN 201520644076U CN 204963366 U CN204963366 U CN 204963366U
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- Prior art keywords
- refrigerator
- interior plate
- sound absorption
- air duct
- sound
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model relates to the technical field of household appliances, a refrigerator and air duct plate thereof is disclosed, including outer panel, interior plate and bounding wall, the outer panel with the interior plate mutual disposition, the bounding wall respectively with outer panel and interior plate are connected, and common injecing to absorb sound the chamber, the interior plate interval be equipped with a plurality of with the sound absorption hole of sound absorption chamber intercommunication. The utility model discloses a wind channel board includes interior plate, outer panel and bounding wall, prescribes a limit to the sound absorption chamber, sets up the sound absorption hole at the interior plate, and sound absorption kong junyu sound absorption chamber intercommunication because the sound absorption hole all corresponds intercommunication sound absorption chamber, forms many parallelly connected helmholtz resonator, forms a good sound absorption system, compares with prior art, can effectively improve the sound absorption effect of wind channel board, reduces the noise in refrigerator wind channel, promotes the silence quality of refrigerator.
Description
Technical field
The utility model relates to household electrical appliance technical field, particularly relates to a kind of refrigerator and air duct board thereof.
Background technology
The fluid noise of ventilating system is one of noise source of wind cooling refrigerator, in prior art, adopt on the inwall in air channel (such as, the internal face of air duct board) upper subsides sound absorption cotton reduction noise, only adopt sound absorption cotton, due to the restriction of material, sound sucting band and noise reduction dynamics are restricted, acoustically effective is poor, cannot meet the pursuit of people to noiseless refrigerator.And sound absorption cotton easily absorbs condensate water, produce ice time serious and block up, hinder air circulation, operational reliability is low.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of refrigerator and air duct board thereof, reduces the noise of refrigerator air duct, promotes the quiet quality of refrigerator.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of air duct board of refrigerator,
It comprises outer panel, interior plate and coaming plate, described outer panel and described interior plate positioned opposite, described coaming plate is connected with described outer panel and interior plate respectively, and jointly limit sound absorption chamber, described interior plate is interval with the sound-absorbing hole that multiple and described sound absorption chamber is communicated with.
Wherein, the thickness of described interior plate is 2 ~ 8mm; Described sound-absorbing hole is circular port, and the diameter of described circular port is 2 ~ 5mm.。
Wherein, the thickness of described interior plate is 4mm, and the diameter of described circular port is 4mm.
Wherein, described interior plate is composite plate.
Wherein, the gross area of described sound-absorbing hole and the area ratio of described interior plate are 10 ~ 30%.
Wherein, sound-absorbing material is filled with in described sound absorption chamber.
Wherein, described sound-absorbing material is foamed plastics, UF foamed plastics, industrial felt or foam glass.
Wherein, described coaming plate is made up of rubber.
The utility model also provides a kind of refrigerator, comprising:
Casing, has refrigeration compartment in described casing;
Men Ti, described door body is arranged on described casing, is used to open or close described refrigeration compartment;
Air channel, described air channel is located in described casing, and described air channel comprises the air duct board described in any one of claim 1 to 8, and the interior plate of air duct board described in this is inside air channel.
(3) beneficial effect
The refrigerator that the utility model provides and air duct board thereof, air duct board comprises interior plate, outer panel and coaming plate, limits sound absorption chamber, arranges sound-absorbing hole at interior plate, sound-absorbing hole is all communicated with sound absorption chamber, be communicated with sound absorption chamber because sound-absorbing hole is all corresponding, form the Helmholtz resonator of many parallel connections, form a good Absorption System, compared with prior art, effectively can improve the acoustically effective of air duct board, reduce the noise of refrigerator air duct, promote the quiet quality of refrigerator.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air duct board of the refrigerator of the utility model embodiment;
Fig. 2 is the sectional view along A-A direction in Fig. 1.
In figure, 1: outer panel; 2: interior plate; 3: coaming plate; 4: sound absorption chamber; 21: sound-absorbing hole.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following instance for illustration of the utility model, but is not used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, term " on ", D score, "left", "right", " in " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In addition, in description of the present utility model, except as otherwise noted, the implication of " multiple ", " many ", " many groups " is two or more.
With reference to the accompanying drawings 1 and 2, describe the air duct board of the refrigerator of the utility model embodiment in detail, it comprises outer panel 1, interior plate 2 and coaming plate 3, outer panel 1 is positioned opposite with interior plate 2, coaming plate 3 is connected with outer panel 1 and interior plate 2 respectively, coaming plate 3, outer panel 1 and interior plate 2 limit sound absorption chamber 4 jointly, and interior plate 2 is interval with multiple sound-absorbing hole 21 be communicated with sound absorption chamber 4.It should be noted that, in use, interior plate 2 is towards the inner side in air channel, and namely air-flow is when duct flows, the internal face of airflow passes interior plate 2 for the air duct board of refrigerator of the present utility model, and wherein, " internal face " refers to towards the one side in air channel here.
In the utility model, arrange sound-absorbing hole 21 at interior plate 2, sound-absorbing hole is all communicated with sound absorption chamber 4, is communicated with sound absorption chamber 4, forms the Helmholtz resonator of many parallel connections because sound-absorbing hole 21 is all corresponding, forms a good Absorption System.Compared with prior art, effectively improve the acoustically effective of air duct board, reduce the noise of refrigerator air duct, promote the quiet quality of refrigerator.Particularly when incident sound wave frequency is consistent with the frequency of Absorption System, just evoke resonance.Of reciprocating vibration at the sound-absorbing hole 21 aperture place air column of interior plate 2, speed, amplitude reach maximum, and friction is also maximum with damping, and now acoustic energy is transformed into heat energy maximum, namely sound energy consumption is maximum.
Further, the thickness of interior plate 2 is preferably 2 ~ 8mm.The shape of sound-absorbing hole 21 can circular port, polygonal hole, irregular shape hole etc., and the shape of multiple sound-absorbing hole 21 can be identical, also can be incomplete same.Through experimental verification, the employing circular port that acoustically effective is best.In the present embodiment, sound-absorbing hole 21 is circular port.Preferably, the diameter of circular port is 2 ~ 5mm.Through experimental verification, when the diameter of circular port is 2 ~ 5mm, acoustically effective is preferentially when the diameter of circular port is less than 2mm or is greater than the situation of 5mm.Particularly when the thickness of interior plate 2 is 4mm, and when the diameter of circular port is 4mm, acoustically effective is best.
Preferably, interior plate 2 adopts composite plate to make.Through experimental verification, the interior plate 2 adopting composite plate to make has better acoustically effective.
Preferably, the gross area of sound-absorbing hole 21 and the area ratio of interior plate 2 are 10 ~ 30%.Area ratio is punching rate, and through experimental verification when punching rate is 10 ~ 30% time, acoustically effective is better than punching rate and is less than 10% or be greater than 30%.
Under entering, sound absorption is filled with sound-absorbing material in chamber 4.Filling sucting sound material in sound absorption chamber 4, effectively can improve acoustically effective.Sound-absorbing material preferably adopts foamed plastics, UF foamed plastics, industrial felt or foam glass, avoids sound-absorbing material to absorb condensate water, stops the problem that air duct board freezes.
Preferably, coaming plate 3 adopts rubber to make.Employing rubber is made, and improves the acoustically effective in sound absorption chamber.
The utility model also provides a kind of refrigerator, comprising: casing, door body and air channel, have refrigeration compartment in casing; Door body is arranged on casing, is used to open or close refrigeration compartment; Air channel is located in casing, and air channel comprises the air duct board described in any one embodiment above-mentioned, and the interior plate of air duct board described in this is inside air channel.The concrete structure easy understand for those skilled in the art of refrigerator, is no longer described in detail in the utility model.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. an air duct board for refrigerator, is characterized in that,
It comprises outer panel, interior plate and coaming plate, described outer panel and described interior plate positioned opposite, described coaming plate is connected with described outer panel and interior plate respectively, and jointly limit sound absorption chamber, described interior plate is interval with the sound-absorbing hole that multiple and described sound absorption chamber is communicated with.
2. the air duct board of refrigerator as claimed in claim 1, it is characterized in that, the thickness of described interior plate is 2 ~ 8mm; Described sound-absorbing hole is circular port, and the diameter of described circular port is 2 ~ 5mm.
3. the air duct board of refrigerator as claimed in claim 2, it is characterized in that, the thickness of described interior plate is 4mm, and the diameter of described circular port is 4mm.
4. the air duct board of the refrigerator as described in any one of claims 1 to 3, is characterized in that, described interior plate is composite plate.
5. the air duct board of the refrigerator as described in any one of claims 1 to 3, is characterized in that, the gross area of described sound-absorbing hole and the area ratio of described interior plate are 10 ~ 30%.
6. the air duct board of the refrigerator as described in any one of claims 1 to 3, is characterized in that, is filled with sound-absorbing material in described sound absorption chamber.
7. the air duct board of refrigerator as claimed in claim 6, it is characterized in that, described sound-absorbing material is foamed plastics, UF foamed plastics, industrial felt or foam glass.
8. the air duct board of the refrigerator as described in any one of claims 1 to 3, is characterized in that, described coaming plate is made up of rubber.
9. a refrigerator, is characterized in that, comprising:
Casing, has refrigeration compartment in described casing;
Men Ti, described door body is arranged on described casing, is used to open or close described refrigeration compartment;
Air channel, described air channel is located in described casing, and described air channel comprises the air duct board described in any one of claim 1 to 8, and the interior plate of air duct board described in this is inside air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644076.8U CN204963366U (en) | 2015-08-21 | 2015-08-21 | Refrigerator and air duct plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644076.8U CN204963366U (en) | 2015-08-21 | 2015-08-21 | Refrigerator and air duct plate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204963366U true CN204963366U (en) | 2016-01-13 |
Family
ID=55058426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520644076.8U Expired - Fee Related CN204963366U (en) | 2015-08-21 | 2015-08-21 | Refrigerator and air duct plate thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204963366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180562A (en) * | 2015-08-21 | 2015-12-23 | 合肥美的电冰箱有限公司 | Refrigerator and wind way plate thereof |
-
2015
- 2015-08-21 CN CN201520644076.8U patent/CN204963366U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180562A (en) * | 2015-08-21 | 2015-12-23 | 合肥美的电冰箱有限公司 | Refrigerator and wind way plate thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20210821 |