CN221505368U - Fresh-keeping air duct structure for refrigerator and refrigerator - Google Patents
Fresh-keeping air duct structure for refrigerator and refrigerator Download PDFInfo
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- CN221505368U CN221505368U CN202323516669.XU CN202323516669U CN221505368U CN 221505368 U CN221505368 U CN 221505368U CN 202323516669 U CN202323516669 U CN 202323516669U CN 221505368 U CN221505368 U CN 221505368U
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- 238000005057 refrigeration Methods 0.000 claims abstract description 41
- 230000001105 regulatory effect Effects 0.000 claims abstract description 27
- 238000007710 freezing Methods 0.000 claims description 19
- 230000008014 freezing Effects 0.000 claims description 19
- 230000001276 controlling effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 238000004321 preservation Methods 0.000 abstract description 11
- 235000013305 food Nutrition 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000009246 food effect Effects 0.000 abstract description 3
- 238000009920 food preservation Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910021389 graphene Inorganic materials 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The application relates to the technical field of food preservation, in particular to a preservation air duct structure for a refrigerator. The fresh-keeping air duct structure comprises a refrigeration air duct, a return air duct, a heat exchange piece and an adjusting switch assembly, wherein the refrigeration air duct is connected with the evaporator cavity, and an air outlet and a first return air inlet which are all communicated with the refrigeration compartment are arranged on the refrigeration air duct; the return air duct is communicated with the refrigerating compartment and the evaporator cavity; the heat exchange piece is arranged in the refrigerating air duct; the regulating switch assembly has a first state in which the evaporator cavity is communicated with the refrigerating air duct and a second state in which the evaporator cavity is isolated from the refrigerating air duct, and the gas in the evaporator cavity and the heat exchange member form direct or indirect heat conduction. The refrigerator can provide a multi-cycle effect by a single refrigerating system, improve the preservation effect of foods in the refrigerating chamber, reduce the water content loss of the foods and increase the preservation freshness of the foods.
Description
Technical Field
The application relates to the technical field of food preservation, in particular to a preservation air duct structure for a refrigerator.
Background
In a single system refrigeration refrigerator, the air in the refrigeration compartment participates in the total air path circulation, and passes through the freezing evaporator, so that certain moisture is taken away, a part of the moisture is lost, the air humidity is reduced, the humidity in the refrigeration compartment is lower, fresh preservation of food is not facilitated, and therefore food placed on a refrigeration shelf is not convenient to preserve, and a large amount of moisture can be lost quickly.
Disclosure of utility model
The application provides a fresh-keeping air duct structure for a refrigerator and the refrigerator, and aims to solve the technical problems.
In a first aspect, the present application provides a fresh air duct structure for a refrigerator, the refrigerator including an evaporator chamber, an evaporator, a refrigeration compartment and a freezing compartment, the evaporator being located in the evaporator chamber, the fresh air duct structure comprising:
The refrigerating air channel is connected with the evaporator cavity, and an air outlet and a first air return opening which are communicated with the refrigerating compartment are arranged on the refrigerating air channel;
The return air duct is communicated with the refrigerating compartment and the evaporator cavity;
The heat exchange piece is arranged in the refrigerating air duct;
The regulating switch assembly is provided with a first state and a second state, the evaporator cavity is communicated with the refrigerating air duct in the first state, the air path between the evaporator cavity and the refrigerating air duct is isolated in the second state, and the air in the evaporator cavity and the heat exchange piece form direct or indirect heat conduction.
Further, the fresh-keeping wind channel structure still includes:
the first fan is used for driving air flow to circularly flow in the evaporator cavity, the refrigerating air duct, the refrigerating compartment and the return air duct;
and the second fan is used for driving air flow to circularly flow in the refrigerating air duct and the refrigerating room.
Further, the regulating switch assembly comprises a first air passage channel and a second air passage channel which are arranged in parallel;
The first air passage channel is communicated with the refrigerating air duct and the evaporator cavity, and a first air valve is arranged on the first air passage channel;
The first end of the second air passage is communicated with the evaporator cavity, the gas in the second air passage and the heat exchange piece form direct or indirect heat conduction, and a second air valve is arranged on the second air passage.
Further, the regulating switch assembly comprises a first air path channel and a second air path channel;
One end of the first air passage is communicated with the refrigerating air passage, and the other end of the first air passage is communicated with the second air passage;
The first end of the second air passage is communicated with the evaporator cavity, and the gas in the second air passage and the heat exchange piece form direct or indirect heat conduction;
The junction of first wind path passageway with the second wind path passageway is provided with the third blast gate, the third blast gate is three-way blast gate.
Further, the heat exchange member closes the second end of the second air path passage; or a heat conducting piece is arranged in the second air passage channel and connected with the heat exchanging piece, and the heat conducting piece seals the second end of the second air passage channel.
Further, the heat exchange member closes the second end of the fourth air path passage; or a heat conducting piece is arranged in the fourth air passage, the heat conducting piece is connected with the heat exchanging piece, and the heat conducting piece seals the second end of the fourth air passage.
Further, the regulating switch assembly comprises a fifth air passage channel, the fifth air passage channel is communicated with the refrigerating air passage and the evaporator cavity, a fourth air valve is arranged on the fifth air passage channel, and a valve core of the fourth air valve is made of a heat conducting material;
In the first state, a valve core of the fourth air valve opens the fifth air passage channel, and the refrigeration air channel is communicated with the evaporator cavity;
And in the second state, the valve core of the fourth air valve closes the fifth air passage channel, and the valve core is connected with the heat exchange piece.
Further, the return air duct is communicated with the refrigerating compartment through a second return air opening, a first air door for controlling the opening and closing of the first return air opening is arranged at the first return air opening, and a second air door for controlling the opening and closing of the second return air opening is arranged at the second return air opening.
Further, a plurality of fins are arranged on the heat exchange piece.
In a second aspect, the application also provides a refrigerator, which comprises an evaporator cavity, an evaporator, a refrigerating compartment, a freezing compartment and the fresh air channel structure provided in the first aspect, wherein the evaporator is positioned in the evaporator cavity.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the fresh-keeping air duct structure provided by the embodiment of the application can enable the refrigerator to provide a multi-cycle effect by a single refrigerating system, improve the preservation effect of foods in a refrigerating room, reduce the water content loss of the foods and increase the preservation freshness of the foods.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
Fig. 1 is a schematic view of a refrigeration cycle structure in a related art refrigerator;
FIG. 2 is a schematic diagram of an airflow circulation path of the fresh air duct structure provided in the embodiment of the present application in a first state;
FIG. 3 is a schematic diagram of an airflow circulation path of the fresh air duct structure provided by the embodiment of the application in a second state;
Fig. 4 is a schematic diagram of a fresh air duct structure with a first adjusting switch assembly and an airflow circulation path in a second state according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a fresh air duct structure with a second type of adjusting switch assembly and an airflow circulation path in a second state according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a fresh air duct structure with a third adjusting switch assembly and an airflow circulation path in a second state according to an embodiment of the present application;
Fig. 7 is a front view of a refrigerating compartment in a refrigerator according to an embodiment of the present application.
In the figure:
101. freezing the compartment; 102. a refrigerating compartment; 103. a heat preservation foaming layer; 104. an evaporator chamber; 105. an evaporator; 106. a frozen air duct mask; 107. a refrigerator liner; 2. a circulating air duct; 3. a refrigerating air duct; 301. an air outlet; 302. a first return air inlet; 4. an air return duct; 401. a second return air inlet; 5. a heat exchange member; 501. a fin; 6. an adjustment switch assembly; 601. a first air path passage; 602. a second air path passage; 603. a first damper; 604. a second air valve; 605. a heat conductive member; 606. a third air path passage; 607. a fourth air path passage; 608. a third damper; 609. a fifth air path passage; 610. a fourth damper; 611. a valve core; 7. a first fan; 8. and a second fan.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
In the related art, the basic structure of the refrigerator includes at least a cabinet, a storage compartment, a compressor, an evaporator, and an air-cooling system, wherein the storage compartment may be at least one of a freezing compartment, a refrigerating compartment, a soft freezing compartment, and a curing compartment, and the storage compartment includes the freezing compartment 101 and the refrigerating compartment 102 as an example. Wherein the refrigerating compartment 102 has a refrigerating space, and the refrigerating space can be provided with a drawer or a shelf and other structures, and the refrigerator comprises a refrigerating door for opening or closing the refrigerating space; the freezing compartment 101 has a freezing space therein, and a drawer, a shelf, or the like may be provided in the freezing space, and the refrigerator has a freezing door for opening or closing the freezing space. The refrigerating compartment 102 and the freezing compartment 101 are isolated by a heat-insulating foam layer 103.
As shown in fig. 1, the evaporator 105 is located in the evaporator chamber 104, the evaporator 105 is connected to the compressor through a refrigerant circulation line, the temperature of the evaporator 105 is reduced by the refrigerant in the compressor and the circulation line, and the evaporator 105 is used as a cold source for temperature adjustment of the refrigerating compartment 101 and the refrigerating compartment 102, and an air cooling system is used for conveying the cold energy of the evaporator 105 to each storage compartment. The air cooling system comprises an evaporator cavity 104, a fan and a circulating air duct 2 which are communicated, wherein the circulating air duct 2 is used for conveying cold energy generated by an evaporator 105 in the evaporator cavity 104 to a refrigeration point through air flow and conveying the air flow with heat exchange completed at the refrigeration point back to the evaporator cavity 104. Specifically, the evaporator 105 is arranged in the evaporator cavity 104, the air flow in the evaporator cavity 104 and the evaporator 105 exchange heat to form a refrigerating air flow, the fan can drive the air flow in the evaporator cavity 104 to flow into the circulating air duct 2, then drive the air flow to flow in the circulating air duct 2, the refrigerating air flow in the circulating air duct 2 exchanges heat with each storage compartment, the temperature in the storage compartments is reduced, and the air flow after heat exchange enters the circulating air duct 2 and finally enters the evaporator cavity 104 to complete the circulation of the air flow.
In the above air-cooled refrigerator with a single system structure, all the wind in the refrigerating compartment 102 circulates through the evaporator 105, and the moisture contained in the air flow encounters the low-temperature evaporator 105 to freeze, thereby reducing the humidity in the air flow. However, most of the articles stored in the refrigerating compartment 102 are vegetables and fruits, and the temperature is above 0 ℃, so the low humidity environment caused by the above single refrigerating system is unfavorable for fresh food preservation, especially for food with high water content.
Based on this, as shown in fig. 2 and 3, a fresh air duct structure for a refrigerator is provided on the basis of the above-described refrigerator structure. The fresh-keeping air duct structure comprises a refrigeration air duct 3, a return air duct 4, a heat exchange piece 5 and an adjusting switch assembly 6. The refrigerating air duct 3 is connected with the evaporator cavity 104, and an air outlet 301 and a first air return 302 which are both communicated with the refrigerating compartment 102 are arranged on the refrigerating air duct 3; the return air duct 4 is communicated with the refrigerating compartment 102 and the evaporator cavity 104; the heat exchange piece 5 is arranged in the refrigerating air duct 3; the regulating switch assembly 6 has a first state in which the evaporator cavity 104 is communicated with the refrigerating air duct 3, and a second state in which the evaporator cavity 104 is isolated from the refrigerating air duct 3 by an air path, and the air in the evaporator cavity 104 and the heat exchange piece 5 form direct or indirect heat conduction.
As shown in fig. 2, when the regulating switch assembly 6 is in the first state, the evaporator cavity 104 is in air path communication with the refrigerating air duct 3, and the working mode of the fresh air duct structure is as follows: the air outlet 301 on the refrigerating air duct 3 is opened, the first air return opening 302 is closed, the refrigerating compartment 102 is communicated with the evaporator cavity 104 through the air return air duct 4, the evaporator 105 is arranged in the evaporator cavity 104, the air flow in the evaporator cavity 104 exchanges heat with the evaporator 105 to form refrigerating air flow, the refrigerating air flow in the evaporator cavity 104 is driven to flow into the refrigerating air duct 3, then the air flow is driven to flow in the refrigerating air duct 3, the refrigerating air flow in the refrigerating air duct 3 enters the refrigerating compartment 102 to exchange heat, the temperature in the refrigerating compartment 102 is reduced to the target temperature, and the air flow in the refrigerating compartment 102 continuously passes through the air return air duct 4 and finally returns to the evaporator cavity 104, so that the circulation of the air flow is completed. At this point, the cooling in the refrigerated compartment 102 is provided directly by the flow of cooling air from the evaporator chamber 104, with a faster cooling rate, which is preferred in situations where the fresh keeping requirements are low or where there is a rapid cooling demand.
As shown in fig. 3, when the regulating switch assembly 6 is in the second state, the evaporator cavity 104 is isolated from the air path between the refrigerating air duct 3, and the air in the evaporator cavity 104 and the heat exchange member 5 form direct or indirect heat conduction, so that the fresh air duct structure works in the following manner: the air outlet 301 on the refrigerating air duct 3 is opened, the first air return opening 302 is opened, the air return air duct 4 is closed, the refrigerating compartment 102 is not communicated with the evaporator cavity 104 through the air return air duct 4, the evaporator 105 is arranged in the evaporator cavity 104, the air flow in the evaporator cavity 104 and the evaporator 105 exchange heat to form refrigerating air flow, the refrigerating air flow cannot flow into the refrigerating air duct 3, but the refrigerating air flow can directly or indirectly form heat conduction with the heat exchange piece 5 in the refrigerating air duct 3, so that the cold in the evaporator cavity 104 is transferred to the heat exchange piece 5, the temperature of the heat exchange piece 5 is reduced, the air flow in the refrigerating compartment 102 is driven to enter the refrigerating air duct 3 through the first air return opening 302, heat exchange is carried out with the heat exchange piece 5 in the refrigerating air duct 3 to form refrigerating air flow, the refrigerating air flow continues to enter the refrigerating compartment 102 through the air outlet 301 for heat exchange, the temperature in the refrigerating compartment 102 is reduced to the target temperature, and the air flow in the refrigerating compartment 102 can continue to return to the refrigerating air duct 3 through the first air return opening 302, and circulation of the air flow in the refrigerating compartment 102 is completed. At this time, the refrigerating mode in the refrigerating compartment 102 is provided by the refrigerating air flow from the evaporator chamber 104 by heat conduction, and the air flow in the refrigerating compartment 102 does not pass through the low-temperature evaporator 105, so that the humidity in the refrigerating compartment 102 is not lowered, and the refrigerating compartment is preferably used under the condition of higher preservation requirement.
Thus, the fresh air channel structure provided in the embodiment of the application can enable the refrigerator to provide a multi-cycle effect by a single refrigeration system, improve the preservation effect of foods in the refrigerating compartment 102, reduce the water content loss of the foods and increase the preservation freshness of the foods.
In some embodiments, the fresh air duct structure further comprises a first fan 7, wherein the first fan 7 is configured to drive the air flow to circulate within the evaporator chamber 104, the refrigeration duct 3, the refrigeration compartment 102, and the return air duct 4. The first fan 7 is preferably arranged in the evaporator cavity 104, and in the refrigerator to which the fresh air channel structure is applied, the freezing compartment 101 and the evaporator cavity 104 can be separated by the freezing channel mask 106, and when the freezing compartment 101 is refrigerated, the first fan 7 can be used for driving air flow in the evaporator cavity 104 into the freezing compartment 101 for circulation. In addition, when the regulating switch assembly 6 is in the first state, the evaporator cavity 104 is in air passage communication with the refrigerating air passage 3, the air outlet 301 on the refrigerating air passage 3 is opened, the first air return opening 302 is closed, the air flow in the evaporator cavity 104 and the evaporator 105 exchange heat to form a refrigerating air flow, the first fan 7 drives the refrigerating air flow in the evaporator cavity 104 to flow into the refrigerating air passage 3, then the air flow is continuously driven to flow in the refrigerating air passage 3, the air flow enters the refrigerating room 102 from the air outlet 301 to exchange heat, and the air flow in the refrigerating room 102 is continuously driven to finally return to the evaporator cavity 104 after passing through the air return air passage 4, so that the circulation of the air flow is completed.
In some embodiments, the fresh air duct structure further includes a second fan 8, where the second fan 8 is configured to drive the air flow to circulate within the refrigeration duct 3 and the refrigeration compartment 102. The second fan 8 is preferably arranged in the refrigerating air duct 3, when the regulating switch assembly 6 is in the second state, the evaporator cavity 104 is isolated from the refrigerating air duct 3 through an air passage, the air in the evaporator cavity 104 and the heat exchange piece 5 form direct or indirect heat conduction, the air outlet 301 and the first air return opening 302 on the refrigerating air duct 3 are both opened, the air return air duct 4 is closed, the cold energy in the evaporator cavity 104 is transferred to the heat exchange piece 5, the temperature of the heat exchange piece 5 is reduced, the second fan 8 drives the air flow in the refrigerating room 102 to enter the refrigerating air duct 3 through the first air return opening 302, then carries out heat exchange with the heat exchange piece 5 in the refrigerating air duct 3 to form refrigerating air flow, the second fan 8 continues to drive the refrigerating air flow to enter the refrigerating room 102 through the air outlet 301 to carry out heat exchange, and then drives the air flow in the refrigerating room 102 to return to the refrigerating air duct 3 through the first air return opening 302, and circulation of the air flow in the refrigerating room 102 is completed.
As shown in fig. 4, a specific design of the regulating switch assembly 6 is given. The regulating switch assembly 6 comprises a first air passage channel 601 and a second air passage channel 602 which are arranged in parallel, the first air passage channel 601 is communicated with the refrigerating air passage 3 and the evaporator cavity 104, and a first air valve 603 is arranged on the first air passage channel 601; the first end of the second air path channel 602 is communicated with the evaporator cavity 104, the gas in the second air path channel 602 and the heat exchange member 5 form direct or indirect heat conduction, and the second air path channel 602 is provided with a second air valve 604.
In the fresh air duct structure shown in fig. 4, when the adjusting switch assembly 6 is in the first state, the working mode of the fresh air duct structure is as follows: the first air valve 603 is in an open state, so that the evaporator cavity 104 and the refrigeration air channel 3 are in air channel communication through the first air channel 601, the second air valve 604 is in a closed state, so that the air flow in the evaporator cavity 104 cannot form direct or indirect heat conduction with the heat exchange piece 5, the air outlet 301 on the refrigeration air channel 3 is opened, the first air return opening 302 is closed, the refrigeration compartment 102 is communicated with the evaporator cavity 104 through the return air channel 4, the air flow in the evaporator cavity 104 exchanges heat with the evaporator 105 to form a refrigerating air flow, the first fan 7 drives the refrigerating air flow in the evaporator cavity 104 to flow into the refrigeration air channel 3 through the first air channel 601, then the first fan 7 drives the air flow to flow in the refrigeration air channel 3, and after the refrigerating air flow in the refrigeration air channel 3 enters the refrigeration compartment 102 for heat exchange, the temperature in the refrigeration compartment 102 is reduced to a target temperature, and the air flow in the refrigeration compartment 102 can continue to pass through the return air channel 4 and finally returns to the evaporator cavity 104, so that the circulation of the air flow is completed.
In the fresh air duct structure shown in fig. 4, when the adjusting switch assembly 6 is in the second state, the working mode of the fresh air duct structure is as follows: the first air valve 603 is in a closed state, so that the evaporator cavity 104 and the refrigerating air duct 3 cannot be communicated through the first air passage 601, and the second air valve 604 is in an open state, so that the air flow in the evaporator cavity 104 and the heat exchange piece 5 can form direct or indirect heat conduction, and at the moment, the evaporator cavity 104 and the refrigerating air duct 3 are isolated through the air passage; the air outlet 301 on the refrigerating air duct 3 is opened, the first air return opening 302 is opened, the air return air duct 4 is closed, the refrigerating compartment 102 is not communicated with the evaporator cavity 104 through the air return air duct 4, the air flow in the evaporator cavity 104 exchanges heat with the evaporator 105 to form refrigerating air flow, the refrigerating air flow cannot flow into the refrigerating air duct 3, but the refrigerating air flow can directly or indirectly form heat conduction with the heat exchange piece 5 in the refrigerating air duct 3 through the second air passage 602, so that the cold in the evaporator cavity 104 is transferred to the heat exchange piece 5, and the temperature of the heat exchange piece 5 is reduced; after the air flow in the refrigerating compartment 102 is driven by the second fan 8 to enter the refrigerating air duct 3 through the first air return opening 302, heat exchange is carried out between the air flow and the heat exchange piece 5 in the refrigerating air duct 3 to form refrigerating air flow, the refrigerating air flow continuously enters the refrigerating compartment 102 through the air outlet 301 to exchange heat, the temperature in the refrigerating compartment 102 is reduced to the target temperature, and circulation of the air flow in the refrigerating compartment 102 is completed.
Optionally, in the above embodiment, when the regulating switch assembly 6 is in the second state, the second air valve 604 is in an open state, and at this time, the air flow in the evaporator cavity 104 and the heat exchange member 5 form direct heat conduction, specifically, the heat exchange member 5 seals the second end of the second air channel 602, after the second air valve 604 is opened, the air in the evaporator cavity 104 may enter into the second air channel 602 to directly contact with the heat exchange member 5, and the heat exchange member 5 seals the second end of the second air channel 602 to ensure that the air flow in the second air channel 602 does not enter into the refrigerating air channel 3, thereby realizing direct heat conduction while realizing air channel isolation.
Optionally, in the above embodiment, when the regulating switch assembly 6 is in the second state, the second air valve 604 is in an open state, at this time, the air flow in the evaporator cavity 104 and the heat exchange member 5 form indirect heat conduction, specifically, the heat conducting member 605 is disposed in the second air channel 602, the heat conducting member 605 is connected with the heat exchange member 5, and the heat conducting member 605 seals the second end of the second air channel 602, when the second air valve 604 is opened, the air in the evaporator cavity 104 will enter into the second air channel 602 to be in direct contact with the heat conducting member 605, and the heat conducting member 605 conducts the cold energy in the evaporator cavity 104 to the heat exchange member 5 by virtue of its excellent heat conducting property, and meanwhile, the heat conducting member 605 seals the second end of the second air channel 602, so that the air flow in the second air channel 602 cannot enter into the refrigerating air channel 3, thereby realizing indirect heat conduction while realizing air channel insulation. In the case of the heat conducting member 605, the heat exchanging member 5 is not required to close the second air passage 602, so that the arrangement mode of the heat exchanging member 5 is more flexible and free. The material of the heat conductive member 605 includes, but is not limited to, metal and its alloy, graphene, and heat conductive silica gel.
As shown in fig. 5, another specific design of the regulating switch assembly 6 is given. The regulating switch assembly 6 includes a third air path channel 606 and a fourth air path channel 607; one end of the third air passage 606 is communicated with the refrigerating air duct 3, and the other end is communicated with the fourth air passage 607; the first end of the fourth air passage 607 is communicated with the evaporator cavity 104, and the gas in the fourth air passage 607 and the heat exchange piece 5 form direct or indirect heat conduction; a third air valve 608 is arranged at the connection position of the third air passage 606 and the fourth air passage 607, and the third air valve 608 is a three-way air valve.
In the fresh air duct structure shown in fig. 5, when the adjusting switch assembly 6 is in the first state, the working mode of the fresh air duct structure is as follows: the third air valve 608 controls one side of the fourth air passage channel 607 close to the evaporator cavity 104 to be in a communication state with the third air passage channel 606, the fourth air passage channel 607 is in a closed state, so that the evaporator cavity 104 and the refrigerating air passage 3 are in air passage communication through the third air passage channel 606 and the fourth air passage channel 607, the air flow in the evaporator cavity 104 cannot form direct or indirect heat conduction with the heat exchange piece 5 through the third air passage channel 606, the air outlet 301 on the refrigerating air passage 3 is opened, the first air return opening 302 is closed, the refrigerating compartment 102 is communicated with the evaporator cavity 104 through the return air passage 4, the air flow in the evaporator cavity 104 and the evaporator 105 exchange heat to form a refrigerating air flow, the first air blower 7 drives the refrigerating air flow in the evaporator cavity 104 to flow into the refrigerating air passage 3 through the fourth air passage channel 607 and the third air passage channel 606, the first air blower 7 drives the air flow in the refrigerating air passage 3, after the refrigerating air flow in the refrigerating air passage 3 enters the refrigerating compartment 102 to exchange heat, the temperature in the compartment 102 is reduced to a target temperature, the air flow in the compartment 102 can finally return to the refrigerating compartment 104 through the evaporator cavity 4, and the circulation of the air flow in the refrigerating compartment 102 is completed.
In the fresh air duct structure shown in fig. 5, when the adjusting switch assembly 6 is in the second state, the working mode of the fresh air duct structure is as follows: the third air valve 608 controls the fourth air passage channel 607 to be in a blocking state with the third air passage channel 606, and the fourth air passage channel 607 is in an opening state, so that the air passage communication between the evaporator cavity 104 and the refrigerating air passage 3 cannot be realized through the third air passage channel 606, and the air flow in the evaporator cavity 104 can form direct or indirect heat conduction with the heat exchange piece 5 through the fourth air passage channel 607, and at the moment, the air passage between the evaporator cavity 104 and the refrigerating air passage 3 is isolated; the air outlet 301 on the refrigerating air duct 3 is opened, the first air return opening 302 is opened, the air return air duct 4 is closed, the refrigerating compartment 102 is not communicated with the evaporator cavity 104 through the air return air duct 4, the air flow in the evaporator cavity 104 exchanges heat with the evaporator 105 to form refrigerating air flow, the refrigerating air flow cannot flow into the refrigerating air duct 3, but the refrigerating air flow can directly or indirectly form heat conduction with the heat exchange piece 5 in the refrigerating air duct 3 through the fourth air passage 607, so that the cold in the evaporator cavity 104 is transferred to the heat exchange piece 5, and the temperature of the heat exchange piece 5 is reduced; after the air flow in the refrigerating compartment 102 is driven by the second fan 8 to enter the refrigerating air duct 3 through the first air return opening 302, heat exchange is carried out between the air flow and the heat exchange piece 5 in the refrigerating air duct 3 to form refrigerating air flow, the refrigerating air flow continuously enters the refrigerating compartment 102 through the air outlet 301 to exchange heat, the temperature in the refrigerating compartment 102 is reduced to the target temperature, and circulation of the air flow in the refrigerating compartment 102 is completed.
Optionally, in the above embodiment, when the regulating switch assembly 6 is in the second state, the second air valve 604 is in an open state, and at this time, the air flow in the evaporator cavity 104 and the heat exchange member 5 form direct heat conduction, specifically, the heat exchange member 5 seals the second end of the fourth air passage 607, the air in the evaporator cavity 104 may enter into the fourth air passage 607 to directly contact with the heat exchange member 5, and the second end of the heat exchange member 5 seals the fourth air passage 607 may ensure that the air flow in the fourth air passage 607 does not enter into the refrigerating air duct 3, thereby realizing direct heat conduction while realizing air passage insulation.
Optionally, in the above embodiment, when the regulating switch assembly 6 is in the second state, the second air valve 604 is in an open state, at this time, the air flow in the evaporator cavity 104 and the heat exchange member 5 form indirect heat conduction, specifically, the heat conducting member 605 is disposed in the fourth air channel 607, the heat conducting member 605 is connected with the heat exchange member 5, and the heat conducting member 605 seals the second end of the fourth air channel 607, the air in the evaporator cavity 104 enters into the fourth air channel 607 to be in direct contact with the heat conducting member 605, and the heat conducting member 605 conducts the cold energy in the evaporator cavity 104 to the heat exchange member 5 by virtue of its excellent heat conducting property, and meanwhile, the heat conducting member 605 seals the second end of the fourth air channel 607 to ensure that the air flow in the fourth air channel 607 does not enter into the refrigerating air channel 3, thereby realizing indirect heat conduction while realizing air channel insulation. In the case of the heat conducting member 605, the heat exchanging member 5 is not required to close the fourth air passage 607, so that the arrangement mode of the heat exchanging member 5 is more flexible and free. The material of the heat conductive member 605 includes, but is not limited to, metal and its alloy, graphene, and heat conductive silica gel.
As shown in fig. 6, a further specific design of the regulating switch assembly 6 is given. The regulating switch assembly 6 comprises a fifth air passage channel 609, the fifth air passage channel 609 is communicated with the refrigerating air duct 3 and the evaporator cavity 104, a fourth air valve 610 is arranged on the fifth air passage channel 609, and a valve core 611 of the fourth air valve 610 is made of a heat conducting material; in the first state, the valve core 611 of the fourth air valve 610 opens the fifth air path channel 609, and the refrigerating duct 3 communicates with the evaporator cavity 104; in the second state, the valve core 611 of the fourth air valve 610 closes the fifth air path passage 609, and the valve core 611 is connected with the heat exchanging member 5.
In the fresh air duct structure shown in fig. 6, when the adjusting switch assembly 6 is in the first state, the working mode of the fresh air duct structure is as follows: the valve core 611 of the fourth air valve 610 opens the fifth air passage channel 609, so that the evaporator cavity 104 and the refrigeration air channel 3 are in air passage communication through the fifth air passage channel 609, the air outlet 301 on the refrigeration air channel 3 is opened, the first air return port 302 is closed, the refrigeration compartment 102 is communicated with the evaporator cavity 104 through the return air channel 4, the air flow in the evaporator cavity 104 exchanges heat with the evaporator 105 to form a refrigeration air flow, the first fan 7 drives the refrigeration air flow in the evaporator cavity 104 to flow into the refrigeration air channel 3 through the fifth air passage channel 609, then the first fan 7 drives the air flow to flow in the refrigeration air channel 3, and after the refrigeration air flow in the refrigeration air channel 3 enters the refrigeration compartment 102 to exchange heat, the temperature in the refrigeration compartment 102 is reduced to a target temperature, and the air flow in the refrigeration compartment 102 continuously passes through the return air channel 4 and finally returns to the evaporator cavity 104, so that the circulation of the air flow is completed.
In the fresh air duct structure shown in fig. 6, when the adjusting switch assembly 6 is in the second state, the working mode of the fresh air duct structure is as follows: the valve core 611 of the fourth air valve 610 closes the fifth air passage channel 609, and the valve core 611 is connected with the heat exchange member 5, so that the air passage communication between the evaporator cavity 104 and the refrigerating air duct 3 cannot be realized through the fifth air passage channel 609, and the air flow in the evaporator cavity 104 can form indirect heat conduction with the heat exchange member 5 through the valve core 611 in the second air passage channel 602, and at this time, the air passage between the evaporator cavity 104 and the refrigerating air duct 3 is isolated; the air outlet 301 on the refrigerating air duct 3 is opened, the first air return opening 302 is opened, the air return air duct 4 is closed, the refrigerating compartment 102 is not communicated with the evaporator cavity 104 through the air return air duct 4, the air flow in the evaporator cavity 104 exchanges heat with the evaporator 105 to form refrigerating air flow, the refrigerating air flow cannot flow into the refrigerating air duct 3, but the refrigerating air flow can indirectly form heat conduction with the heat exchange piece 5 in the refrigerating air duct 3 through the valve core 611, so that the cold in the evaporator cavity 104 is transferred to the heat exchange piece 5, and the temperature of the heat exchange piece 5 is reduced; after the air flow in the refrigerating compartment 102 is driven by the second fan 8 to enter the refrigerating air duct 3 through the first air return opening 302, heat exchange is carried out between the air flow and the heat exchange piece 5 in the refrigerating air duct 3 to form refrigerating air flow, the refrigerating air flow continuously enters the refrigerating compartment 102 through the air outlet 301 to exchange heat, the temperature in the refrigerating compartment 102 is reduced to the target temperature, and circulation of the air flow in the refrigerating compartment 102 is completed.
The above-mentioned arrangement of the valve core 611 made of a heat-conducting material greatly simplifies the structure of the regulating switch assembly 6, and can realize the regulation of the first state and the second state without arranging a plurality of air valves and a plurality of air passage channels. The material of the valve element 611 includes, but is not limited to, metal and its alloy, graphene and heat conductive silica gel, preferably metal and its alloy, for example, the material of the valve element 611 may be copper.
In some embodiments, the return air duct is communicated with the refrigerating compartment 102 through a second air return opening 401, and in order to facilitate the switching between the first state and the second state, a first air door for controlling the opening and closing of the first air return opening 302 is disposed at the first air return opening 302, and a second air door for controlling the opening and closing of the second air return opening 401 is disposed at the second air return opening 401. When the regulating switch assembly 6 is in the first state, the first air door is controlled to close the first air return opening 302, and the second air door is controlled to open the second air return opening 401; when the regulating switch assembly 6 is in the second state, the first air door is controlled to open the first air return opening 302, and the second air door is controlled to close the second air return opening 401. Preferably, as shown in fig. 7, the refrigerating compartment 102 and the refrigerating air duct 3 of the refrigerator are separated by the refrigerator liner 107, and the air outlet 301 and the first air return 302 are both formed on the refrigerator liner 107.
In some embodiments, the heat exchange member 5 is provided with a plurality of fins 501. The heat exchange member 5 is preferably made of a good heat conductor material, preferably a metal material, and the heat exchange member 5 is structured by providing a plurality of fins 501, so that the heat exchange area with air can be increased, and the heat exchange effect can be improved. Alternatively, the heat exchange member 5 has a similar external configuration to the evaporator 105 in the evaporator chamber 104, but without the hollow tube passing through it.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A fresh keeping air duct structure for a refrigerator, the refrigerator including an evaporator chamber, an evaporator, a refrigerating compartment and a freezing compartment, the evaporator being located in the evaporator chamber, the fresh keeping air duct structure comprising:
The refrigerating air channel is connected with the evaporator cavity, and an air outlet and a first air return opening which are communicated with the refrigerating compartment are arranged on the refrigerating air channel;
The return air duct is communicated with the refrigerating compartment and the evaporator cavity;
The heat exchange piece is arranged in the refrigerating air duct;
The regulating switch assembly is provided with a first state and a second state, the evaporator cavity is communicated with the refrigerating air duct in the first state, the air path between the evaporator cavity and the refrigerating air duct is isolated in the second state, and the air in the evaporator cavity and the heat exchange piece form direct or indirect heat conduction.
2. The fresh air duct structure of claim 1, further comprising:
the first fan is used for driving air flow to circularly flow in the evaporator cavity, the refrigerating air duct, the refrigerating compartment and the return air duct;
and the second fan is used for driving air flow to circularly flow in the refrigerating air duct and the refrigerating room.
3. The fresh air duct structure of claim 1, wherein the regulating switch assembly includes a first air duct channel and a second air duct channel arranged in parallel;
The first air passage channel is communicated with the refrigerating air duct and the evaporator cavity, and a first air valve is arranged on the first air passage channel;
The first end of the second air passage is communicated with the evaporator cavity, the gas in the second air passage and the heat exchange piece form direct or indirect heat conduction, and a second air valve is arranged on the second air passage.
4. The fresh air duct structure of claim 1, wherein the regulating switch assembly includes a third air duct channel and a fourth air duct channel;
One end of the third air passage channel is communicated with the refrigerating air passage, and the other end of the third air passage channel is communicated with the fourth air passage channel;
The first end of the fourth air passage is communicated with the evaporator cavity, and the gas in the fourth air passage and the heat exchange piece form direct or indirect heat conduction;
And a third air valve is arranged at the joint of the third air passage channel and the fourth air passage channel, and the third air valve is a three-way air valve.
5. The fresh air duct structure according to claim 3, wherein,
The heat exchange piece seals the second end of the second air path channel; or (b)
The heat conduction piece is arranged in the second air passage and connected with the heat exchange piece, and the heat conduction piece seals the second end of the second air passage.
6. The fresh air duct structure according to claim 4, wherein,
The heat exchange piece seals the second end of the fourth air passage channel; or (b)
The heat conduction piece is arranged in the fourth air passage and connected with the heat exchange piece, and the heat conduction piece seals the second end of the fourth air passage.
7. The fresh air duct structure according to claim 1, wherein the regulating switch assembly comprises a fifth air duct channel, the fifth air duct channel is communicated with the refrigerating duct and the evaporator cavity, a fourth air valve is arranged on the fifth air duct channel, and a valve core of the fourth air valve is made of a heat conducting material;
In the first state, a valve core of the fourth air valve opens the fifth air passage channel, and the refrigeration air channel is communicated with the evaporator cavity;
And in the second state, the valve core of the fourth air valve closes the fifth air passage channel, and the valve core is connected with the heat exchange piece.
8. The fresh air duct structure according to claim 1, wherein the return air duct is communicated with the refrigerating compartment through a second return air port, a first air door for controlling the opening and closing of the first return air port is arranged at the first return air port, and a second air door for controlling the opening and closing of the second return air port is arranged at the second return air port.
9. The fresh air duct structure according to claim 1, wherein the heat exchanging member is provided with a plurality of fins.
10. A refrigerator comprising an evaporator chamber, an evaporator, a refrigerating compartment, a freezing compartment and a fresh air duct structure according to any one of claims 1 to 9, wherein the evaporator is located in the evaporator chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323516669.XU CN221505368U (en) | 2023-12-21 | 2023-12-21 | Fresh-keeping air duct structure for refrigerator and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323516669.XU CN221505368U (en) | 2023-12-21 | 2023-12-21 | Fresh-keeping air duct structure for refrigerator and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221505368U true CN221505368U (en) | 2024-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323516669.XU Active CN221505368U (en) | 2023-12-21 | 2023-12-21 | Fresh-keeping air duct structure for refrigerator and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221505368U (en) |
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2023
- 2023-12-21 CN CN202323516669.XU patent/CN221505368U/en active Active
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