CN204268785U - Refrigerator and air duct board thereof - Google Patents
Refrigerator and air duct board thereof Download PDFInfo
- Publication number
- CN204268785U CN204268785U CN201420541648.5U CN201420541648U CN204268785U CN 204268785 U CN204268785 U CN 204268785U CN 201420541648 U CN201420541648 U CN 201420541648U CN 204268785 U CN204268785 U CN 204268785U
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- China
- Prior art keywords
- air duct
- duct board
- noise reduction
- blind hole
- air
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- Expired - Lifetime
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- 230000009467 reduction Effects 0.000 claims abstract description 47
- 238000005057 refrigeration Methods 0.000 claims abstract description 11
- 229920000742 Cotton Polymers 0.000 abstract description 21
- 239000012530 fluid Substances 0.000 abstract description 13
- 230000030279 gene silencing Effects 0.000 abstract description 11
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 230000008033 biological extinction Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model discloses a kind of refrigerator and air duct board thereof.Wherein, refrigerator comprises: casing, has refrigeration compartment in casing; Men Ti, door body is arranged on casing, is used to open or close refrigeration compartment; Air channel, air channel is located in casing, and air channel comprises air duct board, and the internal face of air duct board is provided with the noise reduction blind hole be spaced apart from each other.According to refrigerator of the present utility model, noise reduction blind hole being set by keeping away in air duct board on face, noise can being made to form resonance in peak value frequency range, and then improve extinction coefficient and the acoustic impedance of air duct board, adding wide band sound absorption.In addition, utilize in air duct board to keep away and face arranges noise reduction blind hole and replace the fluid noise that silencing cotton produces when flowing through air duct board to reduce air-flow, decrease the secondary noise brought by silencing cotton, efficiently solve the air channel ice caused because of acoustical cotton water suction to block up, reduce production cost, improve product longtime running reliability.
Description
Technical field
The utility model relates to household electrical appliance technical field, relates to the panel of a kind of refrigerator and this refrigerator particularly.
Background technology
The fluid noise of ventilating system is one of noise source of wind cooling refrigerator, adopts on the inwall in air channel (such as, the internal face of air duct board) upper acoustical cotton that pastes to reduce noise in correlation technique.But, inside air channel, paste acoustical cotton, add Material Cost, cause the fluid space in air channel to reduce simultaneously, and the generation of secondary noise can be caused while changing flow field.In addition, acoustical cotton easily absorbs condensate water, and produce ice time serious and block up, hinder air circulation, operational reliability is low.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of structure simple, the air duct board for refrigerator that ice blocks up, reliability is high can not be produced.
The utility model also proposes a kind of refrigerator with above-mentioned air duct board.
Provide a kind of refrigerator according to an aspect of the present utility model, comprising: casing, in described casing, there is refrigeration compartment; 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 air duct board, and the internal face of described air duct board is provided with the noise reduction blind hole be spaced apart from each other.
According to refrigerator of the present utility model, noise reduction blind hole being set by keeping away in air duct board on face, noise can being made to form resonance in peak value frequency range, and then improve extinction coefficient and the acoustic impedance of air duct board, adding wide band sound absorption.In addition, utilize in air duct board to keep away and face arranges noise reduction blind hole and replace the fluid noise that silencing cotton produces when flowing through air duct board to reduce air-flow, and then decrease the secondary noise brought by silencing cotton, efficiently solve the air channel ice caused because of acoustical cotton water suction to block up, reduce production cost, improve product longtime running reliability.
In an example of the present utility model, described noise reduction blind hole is circular hole, and the diameter of described circular hole is 0.5-3mm.
Preferably, the diameter of described circular hole is 1.5mm.
In an example of the present utility model, the ratio of the area of the area sum of described noise reduction blind hole and the internal face of air duct board is 15%-40%.
Preferably, the ratio of the area of the area sum of described noise reduction blind hole and the internal face of air duct board is 25%.
Another aspect provides a kind of air duct board for refrigerator according to of the present utility model, comprise plate body, the internal face of described plate body is provided with the noise reduction blind hole be spaced apart from each other.
According to the air duct board for refrigerator of the present utility model, noise reduction blind hole being set by keeping away in air duct board on face, noise can being made to form resonance in peak value frequency range, and then improve extinction coefficient and the acoustic impedance of air duct board, adding wide band sound absorption.In addition, utilize in air duct board to keep away and face arranges noise reduction blind hole and replace the fluid noise that silencing cotton produces when flowing through air duct board to reduce air-flow, and then decrease the secondary noise brought by silencing cotton, efficiently solve the air channel ice caused because of acoustical cotton water suction to block up, reduce production cost, improve product longtime running reliability.
In an example of the present utility model, described noise reduction blind hole is circular hole, and the diameter of described circular hole is 0.5-3mm.
Preferably, the diameter of described circular hole is 1.5mm.
In an example of the present utility model, the ratio of the area of the area sum of described noise reduction blind hole and the internal face of described plate body is 15%-40%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air duct board according to an embodiment of the present utility model;
Fig. 2 is the structural representation of the refrigerator according to an embodiment of the present utility model;
Fig. 3 is the partial schematic sectional view of the refrigerator in Fig. 2.
Reference numeral:
Refrigerator 100,
Casing 110, refrigeration compartment 111,
Door body 120, air channel 130, air inlet 131,
Evaporimeter 140,
Air duct board 150, noise reduction blind hole 151, plate body 152,
Fan component 200.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
1 describe the air duct board 150 for refrigerator 100 according to the utility model embodiment in detail with reference to the accompanying drawings.Air duct board 150 can be located in refrigerator 100, to construct air channel 130 in refrigerator 100.The air inlet 131 in the contiguous air channel 130 of the evaporimeter 140 of refrigerator 100 is arranged, be provided with between evaporimeter 140 and the air inlet 131 in air channel 130 fan component 200 with by the blow cold air around evaporimeter 140 in air channel 130.
As shown in Figure 1, the air duct board 150 for refrigerator 100 according to the utility model embodiment comprises plate body 152, and wherein the internal face of plate body 152 is provided with the noise reduction blind hole 151 be spaced apart from each other.Here internal face refers to the wall towards the side in air channel 130 on air duct board 150, when namely air-flow flows in air channel 130, and the sidewall of the side of the air duct board 150 of airflow passes.It should be noted that, in the process that air-flow flows in air channel 130, will fluid noise be produced.The noise-cancelling theory of noise reduction blind hole 151 is known, keep away in air duct board 150 on face and noise reduction blind hole 151 is set, noise can be made to form resonance in peak value frequency range, and then improve extinction coefficient and the acoustic impedance of air duct board 150, add wide band sound absorption, thus efficiently reduce the fluid noise that air-flow produces when flowing through air duct board 150.
In correlation technique, the internal face of air duct board arranges silencing cotton to reduce the fluid noise in air channel.But, inside air channel, paste acoustical cotton, not only add Material Cost, also cause the fluid space in air channel to reduce, and the generation of secondary noise can be caused while changing flow field.In addition, acoustical cotton easily absorbs condensate water, and produce ice time serious and block up, hinder air circulation, operational reliability is low.
According to the air duct board 150 for refrigerator 100 of the utility model embodiment, by keeping away in air duct board 150 on face, noise reduction blind hole 151 is set, noise can be made to form resonance in peak value frequency range, and then improve extinction coefficient and the acoustic impedance of air duct board 150, add wide band sound absorption.In addition, utilize in air duct board 150 to keep away and face arranges noise reduction blind hole 151 and replace the fluid noise that silencing cotton produces when flowing through air duct board 150 to reduce air-flow, and then decrease the secondary noise brought by silencing cotton, efficiently solve air channel 130 ice caused because of acoustical cotton water suction to block up, reduce production cost, improve product longtime running reliability.
In example as shown in Figure 1, noise reduction blind hole 151 is circular hole, and the diameter of circular hole is 0.5-3mm.Preferably, the diameter of circular hole is 1.5mm.Through experimental verification, when the diameter of circular hole is 0.5-3mm, the soundproof effect of air duct board 150 is significantly better than the soundproof effect when the diameter of circular hole is greater than 3mm or is less than 0.5mm; When the diameter of circular hole is 1.5mm, the soundproof effect of air duct board 150 is best.Certainly, the shape of noise reduction blind hole 151 is not limited to this, and such as, in example as shown in Figure 1, noise reduction blind hole 151 can also be polygon.
In addition, in an optional example of the present utility model, the ratio of the area of the area sum of noise reduction blind hole 151 and the internal face of plate body 152 is 15%-40%.Preferably, the ratio of the area of the area sum of noise reduction blind hole 151 and the internal face of plate body 152 is 25%.Through experimental verification, when the ratio of the area of the area sum of noise reduction blind hole 151 and the internal face of plate body 152 is 15%-40%, the soundproof effect of air duct board 150 significantly better than the ratio of the area when the area sum of noise reduction blind hole 151 and the internal face of plate body 152 be greater than 40% or be less than 15% time soundproof effect; When the ratio of the area of the area sum of noise reduction blind hole 151 and the internal face of plate body 152 is 25%, the soundproof effect of air duct board 150 is best.
As shown in Figure 1-Figure 3, according to the refrigerator 100 of the utility model embodiment, comprising: casing 110, door body 120 and air channel 130.Wherein, refrigerator 100 can be wind cooling refrigerator.
Specifically, as shown in Figure 2 and Figure 3, have refrigeration compartment 111 in casing 110, door body 120 is arranged on casing 110, is used to open or close refrigeration compartment 111.Air channel 130 is located in casing 110.Preferably, air channel 130 is located at the rear side of casing 110, and rear side herein refers to the position at the close rear (such as at rear as shown in Figure 3) of casing 110.The air outlet (scheming not shown) in air channel 130 is communicated with refrigeration compartment 111, to carry cold air in refrigeration compartment 111.The air inlet 131 in the contiguous air channel 130 of the evaporimeter 140 of refrigerator 100 is arranged, be provided with between evaporimeter 140 and the air inlet 131 in air channel 130 fan component 200 with by the blow cold air around evaporimeter 140 in air channel 130.Such as, in example as shown in Figure 3, flowing along the direction shown in arrow a of the cold air in air channel 130.
Wherein, as shown in Figure 1, Figure 3, air channel 130 comprises air duct board 150, and the internal face of air duct board 150 is provided with the noise reduction blind hole 151 be spaced apart from each other.Here internal face refers to the wall towards the side in air channel 130 on air duct board 150, namely air-flow in air channel 130 along direction flowing shown in arrow a in such as Fig. 3 time, the sidewall of the side of the air duct board 150 of airflow passes.It should be noted that, in the process that air-flow flows in air channel 130, will fluid noise be produced.The noise-cancelling theory of noise reduction blind hole 151 is known, keep away in air duct board 150 on face and noise reduction blind hole 151 is set, noise can be made to form resonance in peak value frequency range, and then improve extinction coefficient and the acoustic impedance of air duct board 150, add wide band sound absorption, thus efficiently reduce the fluid noise that air-flow produces when flowing through air duct board 150.
According to the refrigerator 100 of the utility model embodiment, noise reduction blind hole 151 being set by keeping away in air duct board 150 on face, noise can being made to form resonance in peak value frequency range, and then improve extinction coefficient and the acoustic impedance of air duct board 150, adding wide band sound absorption.In addition, utilize in air duct board 150 to keep away and face arranges noise reduction blind hole 151 and replace the fluid noise that silencing cotton produces when flowing through air duct board 150 to reduce air-flow, and then decrease the secondary noise brought by silencing cotton, efficiently solve air channel 130 ice caused because of acoustical cotton water suction to block up, reduce production cost, improve product longtime running reliability.
In example as shown in Figure 1, noise reduction blind hole 151 is circular hole, and the diameter of circular hole is 0.5-3mm.Preferably, the diameter of circular hole is 1.5mm.Through experimental verification, when the diameter of circular hole is 0.5-3mm, the soundproof effect of air duct board 150 is significantly better than the soundproof effect when the diameter of circular hole is greater than 3mm or is less than 0.5mm; When the diameter of circular hole is 1.5mm, the soundproof effect of air duct board 150 is best.Certainly, the shape of noise reduction blind hole 151 is not limited to this, and such as, in example as shown in Figure 1, noise reduction blind hole 151 can also be polygon.
In example as shown in Figure 3, the ratio of the area of the area sum of noise reduction blind hole 151 and the internal face of plate body 152 is 15%-40%.Preferably, the ratio of the area of the area sum of noise reduction blind hole 151 and the internal face of plate body 152 is 25%.Through experimental verification, when the ratio of the area of the area sum of noise reduction blind hole 151 and the internal face of plate body 152 is 15%-40%, the soundproof effect of air duct board 150 significantly better than the ratio of the area when the area sum of noise reduction blind hole 151 and the internal face of plate body 152 be greater than 40% or be less than 15% time soundproof effect; When the ratio of the area of the area sum of noise reduction blind hole 151 and the internal face of plate body 152 is 25%, the soundproof effect of air duct board 150 is best.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of 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 addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (9)
1. 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 air duct board, and the internal face of described air duct board is provided with the noise reduction blind hole be spaced apart from each other.
2. refrigerator according to claim 1, is characterized in that, described noise reduction blind hole is circular hole, and the diameter of described circular hole is 0.5-3mm.
3. refrigerator according to claim 2, is characterized in that, the diameter of described circular hole is 1.5mm.
4. refrigerator according to claim 1, is characterized in that, the ratio of the area of the area sum of described noise reduction blind hole and the internal face of air duct board is 15%-40%.
5. refrigerator according to claim 4, is characterized in that, described ratio is 25%.
6. for an air duct board for refrigerator, it is characterized in that, comprise plate body, the internal face of described plate body is provided with the noise reduction blind hole be spaced apart from each other.
7. the air duct board for refrigerator according to claim 6, is characterized in that, described noise reduction blind hole is circular hole, and the diameter of described circular hole is 0.5-3mm.
8. the air duct board for refrigerator according to claim 7, is characterized in that, the diameter of described circular hole is 1.5mm.
9. the air duct board for refrigerator according to claim 6, is characterized in that, the ratio of the area of the area sum of described noise reduction blind hole and the internal face of described plate body is 15%-40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541648.5U CN204268785U (en) | 2014-09-19 | 2014-09-19 | Refrigerator and air duct board thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541648.5U CN204268785U (en) | 2014-09-19 | 2014-09-19 | Refrigerator and air duct board thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204268785U true CN204268785U (en) | 2015-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420541648.5U Expired - Lifetime CN204268785U (en) | 2014-09-19 | 2014-09-19 | Refrigerator and air duct board thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204268785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296458A (en) * | 2014-09-19 | 2015-01-21 | 合肥华凌股份有限公司 | Refrigerator and air duct plate thereof |
| CN112178776A (en) * | 2020-08-24 | 2021-01-05 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner with upper air outlet and lower air outlet, control method and air conditioner |
-
2014
- 2014-09-19 CN CN201420541648.5U patent/CN204268785U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296458A (en) * | 2014-09-19 | 2015-01-21 | 合肥华凌股份有限公司 | Refrigerator and air duct plate thereof |
| CN112178776A (en) * | 2020-08-24 | 2021-01-05 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner with upper air outlet and lower air outlet, control method and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |