CN103335472A - Refrigerator and return airway thereof - Google Patents
Refrigerator and return airway thereof Download PDFInfo
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- CN103335472A CN103335472A CN2013102958468A CN201310295846A CN103335472A CN 103335472 A CN103335472 A CN 103335472A CN 2013102958468 A CN2013102958468 A CN 2013102958468A CN 201310295846 A CN201310295846 A CN 201310295846A CN 103335472 A CN103335472 A CN 103335472A
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Abstract
The invention discloses a refrigerator and a return airway thereof. The return airway comprises a check valve. The check valve is arranged on the return airway in a mode of being capable of switching between opening an opening position of the return airway and closing a closing position of the return airway. According to the return airway of the refrigerator, the check valve is arranged on the return airway and is matched with opening and closing of a fan in a system, so that smoothness of the return airway at cooling time is ensured, and an air return opening is blocked by the check valve at defrosting time. Through blocking the air return opening at the defrosting time, impurities such as water and ice are effectively prevented from entering the return airway, the possibility that sinking cool air enters an air return tube is avoided, and the performance of the return airway is improved.
Description
Technical field
The present invention relates to field of domestic appliances manufacture technology, particularly a kind of air-return duct of refrigerator and have the refrigerator of this air-return duct.
Background technology
The air-return duct of existing wind cooling refrigerator is taked dual mode usually, and the one, share with drainage channel, another is to separate with drainage channel, separately pipeline return air.Wherein the system that separates with water channel of return air adopts return air inlet perpendicular to the design of water channel direction usually, and adopts uncovered mode.
But, because return air inlet perpendicular to the water channel direction, causes the water droplet of water channel to fall into the uncovered of backwind tube easily, may cause water to flow into other chambers along pipeline, cause the defective of leaking.And residual ice etc. falls into the uncovered of backwind tube during defrost, if heater strip can't be heated to the return air inlet position, may cause residual ice cumulative, thereby cause stopping up significant deficiency such as return air inlet, in addition, uncovered return air inlet also can be revealed the part cold, has strengthened the load of refrigerating chamber to a certain extent.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides a kind of useful commerce to select at least.For this reason, one object of the present invention is to propose a kind of air-return duct with refrigerator of check (non-return) valve.
Another object of the present invention is to propose a kind of refrigerator with this air-return duct.
Air-return duct according to the refrigerator of the embodiment of the invention comprises check (non-return) valve, and described check (non-return) valve is at the open position of opening described air-return duct and close between the closed position of described air-return duct and be located on the described air-return duct convertiblely.
According to the air-return duct of the refrigerator of the embodiment of the invention, this air-return duct is provided with check (non-return) valve, and check (non-return) valve can open or close air-return duct.Thus, by at air-return duct check (non-return) valve being set, the start-stop of coupled system inner blower, air-return duct is unobstructed when having guaranteed refrigeration, and check (non-return) valve cuts off return air inlet during defrost.Cut off return air inlet during by defrost, foreign material such as the water when effectively having avoided defrost, ice enter in the air-return duct, and have stopped the possibility that sinking cold air enters backwind tube, have improved the performance of air-return duct.
In addition, the air-return duct of refrigerator according to the above embodiment of the present invention can also have following additional technical characterictic:
According to one embodiment of present invention, described check (non-return) valve is located at the return air inlet place of described air-return duct.Thus, make the simple in structure of air-return duct, be convenient to install check (non-return) valve, improved the efficiency of assembling of air-return duct, and foreign material such as the water when avoiding defrost further, ice enter in the air-return duct, improved the performance of check (non-return) valve.
According to one embodiment of present invention, the return air inlet place of described air-return duct is provided with support, and described check (non-return) valve cooperates with described support rotationally.Thus, be convenient to check (non-return) valve and open or close air-return duct, improved operating efficiency and the flexibility of check (non-return) valve.And check (non-return) valve is rack-mount, be convenient to the installation of check (non-return) valve, improved the efficiency of assembling of air-return duct, and reduced cost.
According to one embodiment of present invention, described check (non-return) valve is provided with rotating shaft, and described support is provided with mating groove, and described rotating shaft is engaged in the described mating groove rotationally.Thus, be convenient to the installation of check (non-return) valve, improved the installation effectiveness of check (non-return) valve further.
According to one embodiment of present invention, described rotating shaft is provided with limiting section, and described limiting section cooperates with described support and is used for described check (non-return) valve is rotated in preset range.Thus, check (non-return) valve is rotated in predetermined angular, avoid check (non-return) valve to be and rotate in a circumferential direction, improved the stability that check (non-return) valve rotates, make air-out unobstructed.
According to one embodiment of present invention, described rotating shaft is located at the center of gravity place that is higher than described check (non-return) valve on the described check (non-return) valve.Thus, when air-return duct did not have wind to pass through, check (non-return) valve can automatically reset, and had improved the performance of check (non-return) valve.
According to one embodiment of present invention, described check (non-return) valve and described rotating shaft are integrally formed.Thus, make check valve structure simple, be convenient to moulding and the installation of check (non-return) valve, improved shaping efficiency and the installation effectiveness of check (non-return) valve, but also make check (non-return) valve have higher structural strength, improved the service life of check (non-return) valve.
According to one embodiment of present invention, described support is provided with fitted shaft, and described check (non-return) valve is provided with the axis hole suitable with described fitted shaft, and described fitted shaft is engaged in the described axis hole rotationally.Thus, make to make the simple in structure of check (non-return) valve further, be convenient to moulding and the installation of check (non-return) valve.In addition, also make the structure variation of air-return duct.
According to one embodiment of present invention, the return air inlet of described air-return duct is rectangle, described check (non-return) valve is the rectangle plate body, and the upper edge of described check (non-return) valve is higher than the upper edge of the return air inlet of described air-return duct, and the return air inlet of the forward position of described check (non-return) valve, edge, back and lower edge and described air-return duct is suitable.Thus, check (non-return) valve is rotated in predetermined angular, avoid the check (non-return) valve upset, improved the performance of air-return duct.
Refrigerator according to the embodiment of the invention comprises: casing and air-return duct.Particularly, have refrigerating chamber and refrigerating chamber in the described casing; Described air-return duct is located on the described casing, and the two ends of described air-return duct are communicated with described refrigerating chamber and described refrigerating chamber respectively, and wherein, described air-return duct is the air-return duct of the described refrigerator of previous embodiment according to the present invention.
According to the refrigerator of the embodiment of the invention, the air-return duct of the previous embodiment according to the present invention is installed.Thus, by at air-return duct check (non-return) valve being set, the start-stop of coupled system inner blower, air-return duct is unobstructed when having guaranteed refrigeration, and check (non-return) valve cuts off return air inlet during defrost.Cut off return air inlet during by defrost, foreign material such as the water when effectively having avoided defrost, ice enter in the air-return duct, and have stopped the possibility that sinking cold air enters backwind tube, have improved the performance of air-return duct.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram of air-return duct of the refrigerator of one embodiment of the present of invention;
Fig. 2 is the local enlarged diagram that Fig. 1 centre circle shows A;
Fig. 3 makes the schematic diagram of the refrigerator of one embodiment of the present of invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", close the orientation of indications such as " counterclockwise " or position is based on orientation shown in the drawings or position relation, only be that the present invention for convenience of description and simplification are described, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is arranged in addition.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand above-mentioned term concrete implication in the present invention as the case may be.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, first feature second feature it " on " or D score can comprise that first and second features directly contact, can comprise that also first and second features are not directly contacts but by the contact of the additional features between them.And, first feature second feature " on ", " top " and " above " comprise first feature directly over second feature and oblique upper, or only represent that the first characteristic level height is higher than second feature.First feature second feature " under ", " below " and " below " comprise first feature under second feature and tiltedly, or only represent that the first characteristic level height is less than second feature.
The air-return duct of existing wind cooling refrigerator is taked dual mode usually, and the one, share with drainage channel, another is to separate with drainage channel, separately pipeline return air.Wherein the system that separates with water channel of return air adopts return air inlet perpendicular to the design of water channel direction usually, and adopts uncovered mode.But, because return air inlet perpendicular to the water channel direction, causes the water droplet of water channel to fall into the uncovered of backwind tube easily, may cause water to flow into other chambers along pipeline, cause the defective of leaking.And residual ice etc. falls into the uncovered of backwind tube during defrost, if heater strip can't be heated to the return air inlet position, may cause residual ice cumulative, thereby cause stopping up significant deficiency such as return air inlet, in addition, uncovered return air inlet also can be revealed the part cold, has strengthened the load of refrigerating chamber to a certain extent.The present invention proposes a kind of air-return duct with refrigerator of check (non-return) valve for this reason.
Describe the air-return duct of the refrigerator of the embodiment of the invention with reference to the accompanying drawings in detail.
As depicted in figs. 1 and 2, the air-return duct 1 according to the refrigerator of the embodiment of the invention comprises check (non-return) valve 11, and check (non-return) valve 11 is at the open position of opening air-return duct 1 and close between the closed position of air-return duct 1 and be located on the air-return duct 1 convertiblely.
According to the air-return duct of the refrigerator of the embodiment of the invention, this air-return duct 1 is provided with check (non-return) valve 1, and check (non-return) valve 1 can open or close air-return duct 1.Thus, by at air-return duct 1 check (non-return) valve 11 being set, the start-stop of coupled system inner blower, air-return duct is unobstructed when having guaranteed refrigeration, and check (non-return) valve 11 cuts off return air inlets during defrost.Cut off return air inlet during by defrost, foreign material such as the water when effectively having avoided defrost, ice enter in the air-return duct, and have stopped the possibility that sinking cold air enters backwind tube, have improved the performance of air-return duct 1.
As shown in Figure 1, as shown in Figure 1, in one embodiment of the invention, check (non-return) valve 11 is located at the return air inlet (namely the opening that makes progress of air-return duct 1) as shown in Figure 1 of air-return duct 1 and locates.Thus, make the simple in structure of air-return duct 1, be convenient to install check (non-return) valve 11, improved the efficiency of assembling of air-return duct, and foreign material such as the water when avoiding defrost further, ice enter in the air-return duct, improved the performance of check (non-return) valve.
Further, as shown in Figure 2, the return air inlet place of air-return duct 1 is provided with support 12, and check (non-return) valve 11 cooperates with support 12 rotationally.Check (non-return) valve 11 is at the open position of opening air-return duct 1 and close between the closed position of air-return duct 1 and rotate, and in other words, check (non-return) valve 11 is by rotating opening or close air-return duct 1.Thus, be convenient to check (non-return) valve 11 and open or close air-return duct 1, improved operating efficiency and the flexibility of check (non-return) valve 11.And check (non-return) valve 11 is rack-mount, be convenient to the installation of check (non-return) valve 11, improved the efficiency of assembling of air-return duct 1, and reduced cost.
Advantageously, as shown in Figure 2, check (non-return) valve 11 is provided with rotating shaft 111, and support 12 is provided with the mating groove (not shown), and rotating shaft 111 is engaged in the described mating groove rotationally.Thus, be convenient to the installation of check (non-return) valve 11, improved the installation effectiveness of check (non-return) valve 11 further.
Further, rotating shaft 111 is provided with the limiting section (not shown), and described limiting section cooperates with support 12 and is used for check (non-return) valve 11 is rotated in preset range.In other words, behind the check (non-return) valve 11 rotation predetermined angulars, described limiting section contacts with support 12, is used for limiting the anglec of rotation of check (non-return) valve 11.Thus, check (non-return) valve 11 is rotated in predetermined angular, improved the stability that check (non-return) valve 11 rotates, make air-out unobstructed.
In addition, rotating shaft 111 is located at the center of gravity place that is higher than check (non-return) valve 11 on the check (non-return) valve 11.Thus, when air-return duct 1 did not have wind to pass through, check (non-return) valve 11 can automatically reset, and had improved the performance of check (non-return) valve 11.
Further, check (non-return) valve 11 is integrally formed with rotating shaft 111.Thus, make check (non-return) valve 11 simple in structure, be convenient to moulding and the installation of check (non-return) valve 11, improved shaping efficiency and the installation effectiveness of check (non-return) valve 11, but also make check (non-return) valve 11 have higher structural strength, improved the service life of check (non-return) valve 11.
In addition, in other embodiment of the present invention, support 12 is provided with the fitted shaft (not shown), and check (non-return) valve 11 is provided with the axis hole (not shown) suitable with fitted shaft, and described fitted shaft is engaged in the described axis hole rotationally.Thus, make to make the simple in structure of check (non-return) valve 11 further, be convenient to moulding and the installation of check (non-return) valve 11.In addition, also make the structure variation of air-return duct 1.
Further, in a specific embodiment of the present invention, the return air inlet of air-return duct 1 is rectangle, and check (non-return) valve 11 is the rectangle plate body, the upper edge of check (non-return) valve 11 is higher than the upper edge of the return air inlet of air-return duct 1, and the return air inlet of the forward position of check (non-return) valve 11, edge, back and lower edge and air-return duct 1 is suitable.Thus, check (non-return) valve 11 is rotated in predetermined angular, avoid check (non-return) valve 11 upsets, improved the performance of air-return duct 1.
As shown in Figure 3, the refrigerator according to the embodiment of the invention comprises: casing 2 and air-return duct 1.
Particularly, have refrigerating chamber 201 and refrigerating chamber 202 in the casing 2.Air-return duct 1 is located on the casing 2, and the two ends of air-return duct 1 are communicated with refrigerating chamber 201 and refrigerating chamber 202 respectively, and wherein, air-return duct 1 is the air-return duct of the described refrigerator of previous embodiment according to the present invention.
According to the refrigerator of the embodiment of the invention, the air-return duct 1 of the previous embodiment according to the present invention is installed.Thus, by at air-return duct 1 check (non-return) valve 11 being set, the start-stop of coupled system inner blower, air-return duct is unobstructed when having guaranteed refrigeration, and check (non-return) valve 11 cuts off return air inlets during defrost.Cut off return air inlet during by defrost, foreign material such as the water when effectively having avoided defrost, ice enter in the air-return duct, and have stopped the possibility that sinking cold air enters backwind tube, have improved the performance of air-return duct 1.
In addition, refrigerator of the present invention also comprises other equipment such as evaporimeter, can be known in the prior art, and the present invention is not elaborated.
In the refrigerator of the present invention, be provided with check (non-return) valve 11 at the return air inlet place of air-return duct 1, the power that the wind that the running by blower fan produces is opened as check (non-return) valve 11.End at the return air inlet of air-return duct 1 is provided with a support 12, and the rotating shaft 111 of check (non-return) valve 11 is engaged on the support 12 rotationally.Check (non-return) valve 11 is upright according to gravity under the nature, covers the return air inlet of air-return duct 1, closes air-return duct 1.When the refrigerator operation, blower fan begins blowing, and negative pressure is formed at evaporimeter 3 bottoms, and the return air of refrigerating chamber 201 begins to blow toward refrigerating chamber 202, and this moment, check (non-return) valve 11 blew open under wind action, became level, and air door reaches maximum area and carries out return air.When blower fan shuts down, no longer include wind in the air-return duct 1, check (non-return) valve 11 is returned to vertical state under the gravity effect, covers the return air inlet of air-return duct 1.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment under the situation that does not break away from principle of the present invention and aim within the scope of the invention, modification, replacement and modification.
Claims (10)
1. the air-return duct of a refrigerator is characterized in that, comprises check (non-return) valve, and described check (non-return) valve is at the open position of opening described air-return duct and close between the closed position of described air-return duct and be located on the described air-return duct convertiblely.
2. the air-return duct of refrigerator according to claim 1 is characterized in that, described check (non-return) valve is located at the return air inlet place of described air-return duct.
3. the air-return duct of refrigerator according to claim 2 is characterized in that, the return air inlet place of described air-return duct is provided with support, and described check (non-return) valve cooperates with described support rotationally.
4. the air-return duct of refrigerator according to claim 3 is characterized in that, described check (non-return) valve is provided with rotating shaft, and described support is provided with mating groove, and described rotating shaft is engaged in the described mating groove rotationally.
5. the air-return duct of refrigerator according to claim 4 is characterized in that, described rotating shaft is provided with limiting section, and described limiting section cooperates with described support and is used for described check (non-return) valve is rotated in preset range.
6. the air-return duct of refrigerator according to claim 4 is characterized in that, described rotating shaft is located at the center of gravity place that is higher than described check (non-return) valve on the described check (non-return) valve.
7. the air-return duct of refrigerator according to claim 4 is characterized in that, described check (non-return) valve and described rotating shaft are integrally formed.
8. the air-return duct of refrigerator according to claim 3 is characterized in that, described support is provided with fitted shaft, and described check (non-return) valve is provided with the axis hole suitable with described fitted shaft, and described fitted shaft is engaged in the described axis hole rotationally.
9. according to the air-return duct of each described refrigerator among the claim 1-8, it is characterized in that, the return air inlet of described air-return duct is rectangle, described check (non-return) valve is the rectangle plate body, the upper edge of described check (non-return) valve is higher than the upper edge of the return air inlet of described air-return duct, and the return air inlet of the forward position of described check (non-return) valve, edge, back and lower edge and described air-return duct is suitable.
10. a refrigerator is characterized in that, comprising:
Casing has refrigerating chamber and refrigerating chamber in the described casing; With
Air-return duct, described air-return duct is located on the described casing, and the two ends of described air-return duct are communicated with described refrigerating chamber and described refrigerating chamber respectively, and wherein, described air-return duct is the air-return duct according to each described refrigerator among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310295846.8A CN103335472B (en) | 2013-07-15 | 2013-07-15 | Refrigerator and air-return duct thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310295846.8A CN103335472B (en) | 2013-07-15 | 2013-07-15 | Refrigerator and air-return duct thereof |
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| CN103335472A true CN103335472A (en) | 2013-10-02 |
| CN103335472B CN103335472B (en) | 2016-07-06 |
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| CN201310295846.8A Active CN103335472B (en) | 2013-07-15 | 2013-07-15 | Refrigerator and air-return duct thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499174A (en) * | 2013-10-23 | 2014-01-08 | 合肥华凌股份有限公司 | Air duct assembly of air-cooled refrigerator and air-cooled refrigerator with same |
| CN106839602A (en) * | 2017-01-18 | 2017-06-13 | 合肥美的电冰箱有限公司 | Air return system and refrigerator |
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| CN203454530U (en) * | 2013-07-15 | 2014-02-26 | 合肥华凌股份有限公司 | Refrigerator and air return channel thereof |
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| US5765388A (en) * | 1996-09-25 | 1998-06-16 | Daewoo Electronics Co., Ltd. | Refrigerator with air curtain generating device |
| CN2801957Y (en) * | 2005-07-05 | 2006-08-02 | 耿利江 | Air exhaust duct with valve for preventing smoke-back |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103499174A (en) * | 2013-10-23 | 2014-01-08 | 合肥华凌股份有限公司 | Air duct assembly of air-cooled refrigerator and air-cooled refrigerator with same |
| CN106839602A (en) * | 2017-01-18 | 2017-06-13 | 合肥美的电冰箱有限公司 | Air return system and refrigerator |
| CN106839602B (en) * | 2017-01-18 | 2020-06-12 | 合肥美的电冰箱有限公司 | Air return system and refrigerator |
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| Publication number | Publication date |
|---|---|
| CN103335472B (en) | 2016-07-06 |
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