CN202229510U - Silencing box for air extracting pump of refrigerator - Google Patents
Silencing box for air extracting pump of refrigerator Download PDFInfo
- Publication number
- CN202229510U CN202229510U CN2011203261908U CN201120326190U CN202229510U CN 202229510 U CN202229510 U CN 202229510U CN 2011203261908 U CN2011203261908 U CN 2011203261908U CN 201120326190 U CN201120326190 U CN 201120326190U CN 202229510 U CN202229510 U CN 202229510U
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- silencing cavity
- hole
- communicated
- discharge chamber
- inlet plenum
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Abstract
The utility model provides a silencing box for an air extracting pump for a refrigerator. A plurality of silencing cavities are communicated in series in the silencing box to make an airflow circulated along a broken line in a serial passage from an air inlet hole to an air outlet hole, and simultaneously, the impact energy of air is greatly attenuated under the action of silencing elements, thereby effectively reducing noises in a finite space.
Description
Technical field
The utility model relates to refrigerator, relates in particular to a kind of sound-muffling box that is used for refrigerator vacuum extractor aspiration pump.
Background technology
In the refrigerator design, can store the longer time at present, in refrigerating chamber, dispose vacuum crisper in order to make food.Utilize vacuum extractor to be bled in the space of vacuum crisper, make the food in this space be in the vacuum cold state, with the fresh-keeping time limit of this food and extend.Aspiration pump in the vacuum extractor is mainly used in and vacuumizes, and existing aspiration pump generally adopts direct current or alternating current generator to drive, and the pump housing is provided with bleeding point and exhaust outlet.But present aspiration pump is because the open noise of exhaust outlet is bigger, and when particularly refrigerator was placed in family, noise caused certain influence to daily life.Therefore, how in limited space, effectively to reduce the noise of aspiration pump, become the research topic of the utility model.
Summary of the invention
The utility model provides a kind of sound-muffling box that is used for the refrigerator aspiration pump, is intended to effectively reduce in the confined space noise of refrigerator aspiration pump.
For achieving the above object; The technical scheme that the utility model adopts is: comprise box body and lid; The space of said box body is divided at least two silencing cavity by dividing plate; Each silencing cavity is divided into an inlet plenum and a discharge chamber by an installing plate again, on each installing plate, offers installing hole corresponding to silencer element, and this installing hole is communicated with the inlet plenum of corresponding installing plate place silencing cavity with discharge chamber; On each dividing plate, be equipped with a breach or through hole, this breach or through hole are communicated with two adjacent silencing cavity; On said box body wall, offer an air admission hole and a venthole; Said air admission hole is communicated with the inlet plenum of first silencing cavity; The discharge chamber of first silencing cavity is communicated with the inlet plenum of adjacent next silencing cavity through said breach or through hole; By that analogy; The discharge chamber of last silencing cavity is communicated with said venthole, forms a series connection silencers channel from the air admission hole to the venthole with this.
Related content in the technique scheme is explained as follows:
1, in the such scheme; A silencer element all is installed in said each installing hole; Said silencer element is to stop sound transmission and a kind of device of allowing air communication to cross; Being the important measures of eliminating air power noise, can be resistive muffler, resistant noise-reducing device, impedance complex formula muffler, microperforated panel muffler or aperture muffler.
The utility model operation principle is: utilizes the passage of the inner air admission hole of sound-muffling box, makes air-flow broken line in passage circulate, pass through the effect of silencer element simultaneously to venthole, and the big high attenuation of air impingement energy, thus effectively reduce noise.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
1, because the utility model adopts the silencing cavity structure to cooperate with silencer element, can reduce noise more effectively.
2, because the structure that the utility model adopts a plurality of silencing cavity series connection to be communicated with can effectively reduce noise in the confined space.
Description of drawings
Accompanying drawing 1 is the utility model perspective view one;
Accompanying drawing 2 is the utility model perspective view two (Fig. 2 is the view after Fig. 1 spins upside down 180 degree);
Accompanying drawing 3 is the utility model vertical view;
Accompanying drawing 4 is the utility model cutaway view;
Accompanying drawing 5 is for having installed the utility model cutaway view of silencer element.
In the above accompanying drawing: 1, lid; 2, box body; 3, dividing plate; 4, breach; 5, venthole; 6, installing hole; 7, air admission hole; 8, installing plate; 9, silencer element.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment 1: a kind of sound-muffling box that is used for the refrigerator aspiration pump
Referring to accompanying drawing 1,2,3,4, shown in 5; Comprise box body 2 and lid 1; The space of said box body 2 is divided into three silencing cavity by dividing plate 3; Each silencing cavity is divided into an inlet plenum and a discharge chamber by an installing plate 8 again, on each installing plate 8, offers installing hole 6 corresponding to silencer element 9, and this installing hole 6 is communicated with the inlet plenum of corresponding installing plate 8 place silencing cavity with discharge chamber; On each dividing plate 3, be equipped with a breach 4 or a through hole, this breach 4 or through hole are communicated with two adjacent silencing cavity; On said box body 2 walls, offer an air admission hole 7 and a venthole 5; Said air admission hole 7 is communicated with the inlet plenum of first silencing cavity; The discharge chamber of first silencing cavity is communicated with the inlet plenum of adjacent second silencing cavity through said breach 4 or through hole; The discharge chamber of second silencing cavity is communicated with the inlet plenum of the 3rd silencing cavity; The discharge chamber of the 3rd silencing cavity is communicated with said venthole 5, forms one from air admission hole 7 to venthole 5 with this, by the silencers channel of these three silencing cavity series connection of first silencing cavity to the, three silencing cavity.
In said each installing hole 6 silencer element 9 is installed all; Said silencer element 9 is to stop sound transmission and a kind of device of allowing air communication to cross; Being the important measures of eliminating air power noise, can be resistive muffler, resistant noise-reducing device, impedance complex formula muffler, microperforated panel muffler or aperture muffler.
During the utility model work; The gas that the aspiration pump exhaust outlet is discharged gets into the inlet plenum of first silencing cavity through the air admission hole 7 of sound-muffling box; Get into the discharge chamber of first silencing cavity via the silencer element in first silencing cavity 9 again; Inlet plenum through second silencing cavity of breach 4 entering on the dividing plate 3 between first silencing cavity and second silencing cavity again; Then get into the discharge chamber of second silencing cavity via the silencer element in second silencing cavity 9; Get into the inlet plenum of the 3rd silencing cavity through the breach 4 on the dividing plate 3 between second silencing cavity and the 3rd silencing cavity again, then gas gets into the discharge chamber of the 3rd silencing cavity via the silencer element in the 3rd silencing cavity 9, at last from venthole 5 discharges.
Embodiment 2: a kind of sound-muffling box that is used for the refrigerator aspiration pump
The difference of present embodiment and embodiment 1 is: the space of box body 2 is divided into four silencing cavity by dividing plate 3.Said air admission hole 7 is communicated with the inlet plenum of first silencing cavity; The discharge chamber of first silencing cavity is communicated with the inlet plenum of adjacent second silencing cavity through said breach 4 or through hole; The discharge chamber of second silencing cavity is communicated with the inlet plenum of the 3rd silencing cavity; The discharge chamber of the 3rd silencing cavity is communicated with the discharge chamber of the 4th silencing cavity; The discharge chamber of the 4th silencing cavity is communicated with venthole 5, with this form one from air admission hole 7 to venthole 5 silencers channels by this four silencing cavity series connection of first silencing cavity to the, four silencing cavity.Other is identical with embodiment 1 content, no longer is repeated in this description here.
Can draw with embodiment 2 contents through above embodiment 1, in the technical scheme of the utility model, the quantity of silencing cavity can also be designed to two, more than five or five, all can realize.How much quantity of silencing cavity can be confirmed according to noise reduction height that requires and the space that allows to arrange are big or small in practical application.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model.
Claims (2)
1. sound-muffling box that is used for the refrigerator aspiration pump; It is characterized in that: comprise box body (2) and lid (1); The space of said box body (2) is divided at least two silencing cavity by dividing plate (3); Each silencing cavity is divided into an inlet plenum and a discharge chamber by an installing plate (8) again, goes up at each installing plate (8) and offers installing hole (6) corresponding to silencer element (9), and this installing hole (6) is communicated with the inlet plenum of corresponding installing plate (8) place silencing cavity with discharge chamber; On each dividing plate (3), be equipped with a breach (4) or through hole, this breach (4) or through hole are communicated with two adjacent silencing cavity; On said box body (2) wall, offer an air admission hole (7) and a venthole (5); Said air admission hole (7) is communicated with the inlet plenum of first silencing cavity; The discharge chamber of first silencing cavity is communicated with the inlet plenum of adjacent next silencing cavity through said breach (4) or through hole; By that analogy; The discharge chamber of last silencing cavity is communicated with said venthole (5), forms a series connection silencers channel from air admission hole (7) to venthole (5) with this.
2. sound-muffling box according to claim 1; It is characterized in that: a silencer element (9) all is installed in said each installing hole (6), and said silencer element (9) adopts resistive muffler, resistant noise-reducing device, impedance complex formula muffler, microperforated panel muffler or aperture muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203261908U CN202229510U (en) | 2011-09-02 | 2011-09-02 | Silencing box for air extracting pump of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203261908U CN202229510U (en) | 2011-09-02 | 2011-09-02 | Silencing box for air extracting pump of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229510U true CN202229510U (en) | 2012-05-23 |
Family
ID=46080095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203261908U Expired - Fee Related CN202229510U (en) | 2011-09-02 | 2011-09-02 | Silencing box for air extracting pump of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229510U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197899A (en) * | 2020-03-09 | 2020-05-26 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| WO2020151592A1 (en) * | 2019-01-23 | 2020-07-30 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing device |
-
2011
- 2011-09-02 CN CN2011203261908U patent/CN202229510U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020151592A1 (en) * | 2019-01-23 | 2020-07-30 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing device |
| CN111197899A (en) * | 2020-03-09 | 2020-05-26 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN111197899B (en) * | 2020-03-09 | 2022-01-07 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
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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 |
Granted publication date: 20120523 Termination date: 20180902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |