CN212362560U - Refrigerator adopting recovered hot defrosting - Google Patents
Refrigerator adopting recovered hot defrosting Download PDFInfo
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- CN212362560U CN212362560U CN202021939628.5U CN202021939628U CN212362560U CN 212362560 U CN212362560 U CN 212362560U CN 202021939628 U CN202021939628 U CN 202021939628U CN 212362560 U CN212362560 U CN 212362560U
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Abstract
The utility model discloses an adopt refrigerator of recovery heat defrosting, include: the defrosting device comprises a shell, wherein an evaporation chamber, a condensation chamber and a defrosting air channel are arranged in the shell, and the evaporation chamber is communicated with the condensation chamber through the defrosting air channel; an evaporator disposed within the evaporation chamber; a condenser disposed within the condensing chamber; the heat storage structure is arranged in the condensation chamber and used for recovering heat released by the condenser; and the fan is arranged in the shell and used for forming convection between the evaporator and the condenser during defrosting. The utility model discloses a refrigerator is through setting up the heat-retaining structure, and the used heat that the condenser produced when making the refrigerator normally refrigerate is stored in the heat-retaining structure, utilizes the heat of storing in the heat-retaining structure to change the frost to the evaporimeter to saved evaporimeter defrosting time, simultaneously, saved the energy that the defrosting needs consumed greatly, energy-concerving and environment-protective more.
Description
Technical Field
The utility model relates to a refrigerator technical field, concretely relates to adopt refrigerator of heat recovery defrosting.
Background
At present, most of the evaporators of the air-cooled refrigerators have an automatic defrosting function by heating the evaporator by a resistance type heating device such as an electric heating rod, and then removing frost by heat conduction of the evaporator. The method has the following defects: firstly, because the position of the resistance type heating device is fixed, after nearby frost is melted, the refrigerant in the evaporator pipe can be heated while the frost at a slightly distant heating position is heated, so that the temperature in the freezing chamber is increased; secondly, after the electric heating device defrosts, residual water drops after frost is melted still exist on the evaporator in a short time, and when the evaporator refrigerates again, the water drops are quickly cooled again and frosted quickly, and a part of cold energy loss is caused.
In the prior art, a refrigerator is provided, a precooling evaporator is arranged to reduce the frosting amount on a main evaporator, the heat exchange efficiency of the main evaporator is improved, and the energy-saving defrosting system is achieved. And when the defrosting operation is not performed, waste heat generated by the compressor and the condenser cannot be fully utilized.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an adopt refrigerator of recovered hot defrosting has solved the unable make full use of's of the used heat of condenser problem among the prior art.
The utility model discloses a refrigerator, include: the defrosting device comprises a shell, wherein an evaporation chamber, a condensation chamber and a defrosting air channel are arranged in the shell, and the evaporation chamber is communicated with the condensation chamber through the defrosting air channel; an evaporator disposed within the evaporation chamber; a condenser disposed within the condensing chamber; the heat storage structure is arranged in the condensation chamber and used for recovering heat released by the condenser; and the fan is arranged in the shell and used for forming convection between the evaporator and the condenser during defrosting.
Furthermore, the defrosting air channel comprises a hot air channel and a cold air channel, two ends of the hot air channel are respectively communicated with the evaporation chamber and the condensation chamber, and two ends of the cold air channel are respectively communicated with the evaporation chamber and the condensation chamber; the evaporation chamber, the condensation chamber, the hot air duct and the cold air duct form a circulating air duct.
Further, the fan is arranged in the condensation chamber, and the position of the fan corresponds to the position of the condenser.
Further, the refrigerator also comprises a first air door, the first air door is arranged in the shell, and the first air door is used for opening or closing the defrosting air channel.
Further, the shell further comprises an air inlet and an air outlet, the air inlet and the air outlet are respectively communicated with the condensation chamber, and second air doors are respectively arranged on the air inlet and the air outlet.
Further, the refrigerator has a defrosting mode and a normal cooling mode; in the defrosting mode, the first air door is opened, and the second air door is closed; in the normal cooling mode, the first damper is closed and the second damper is opened.
Further, the refrigerator further includes: a compressor disposed within the condensation chamber.
Furthermore, the shell also comprises a freezing chamber, a freezing air duct, a refrigerating chamber and a refrigerating air duct, wherein the freezing chamber is communicated with the evaporation chamber through the freezing air duct, and the refrigerating chamber is communicated with the evaporation chamber through the refrigerating air duct; the refrigerator also comprises a third air door, and the third air door is used for controlling the freezing air duct and the refrigerating air duct to be opened or closed.
Further, in the defrosting mode, the third damper is closed; in the normal cooling mode, the third damper is opened.
Further, the refrigerator further includes: and the heating device is arranged in the evaporation chamber and used for heating and defrosting the evaporator.
Further, the heat storage structure comprises a heat storage layer, and the heat storage layer is arranged on the inner wall of the condensation chamber.
Further, the heat storage layer adopts a phase change material.
The utility model discloses a refrigerator is through setting up the heat-retaining structure, and the used heat that the condenser produced when making the refrigerator normally refrigerate is stored in the heat-retaining structure, when the evaporimeter needs the defrosting, can form forced convection through the fan, utilizes the heat of storing in the heat-retaining structure to change the frost to the evaporimeter to saved evaporimeter defrosting time, simultaneously, saved the energy that the defrosting needs to consume greatly, energy-concerving and environment-protective more.
Drawings
Fig. 1 is a schematic structural view of an evaporator according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
legend: 10. a housing; 11. an evaporation chamber; 12. a condensing chamber; 13. a hot air duct; 14. a cold air duct; 15. an air inlet; 16. an air outlet; 17. a freezing air duct; 18. a refrigeration air duct; 20. an evaporator; 30. a condenser; 40. a heat storage structure; 50. a fan; 60. a first damper; 70. a second damper; 80. a third damper; 90. a compressor.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the contents of the specification.
As shown in fig. 1 and 2, the utility model discloses a refrigerator, include: the shell 10, the evaporator 20, the shell 10, the heat storage structure 40 and the fan 50 are internally provided with an evaporation chamber 11, a condensation chamber 12 and a defrosting air channel, and the evaporation chamber 11 is communicated with the condensation chamber 12 through the defrosting air channel; the evaporator 20 is arranged in the evaporation chamber 11; the condenser 30 is arranged in the condensing chamber 12; the heat storage structure 40 is arranged in the condensation chamber 12 and used for recovering heat released by the condenser 30; a fan 50 is provided in the case 10, and the fan 50 serves to form a convection between the evaporator 20 and the condenser 30 when defrosting. The utility model discloses a refrigerator is through setting up heat-retaining structure 40, and the used heat that condenser 30 produced when making the refrigerator normally refrigerate is stored in heat-retaining structure 40, when evaporimeter 20 needs the defrosting, can form forced convection through fan 50, utilizes the heat of storing in the heat-retaining structure 40 to change the frost to evaporimeter 20 to evaporator defrosting time has been saved, simultaneously, has saved the energy that the defrosting needs to consume greatly, and is more energy-concerving and environment-protective.
It should be noted that, in a normal situation, only in a normal refrigeration state of the refrigerator, the condenser 30 releases heat, and after entering the defrosting mode, the refrigeration system stops working, and at this time, the condenser 30 cannot continuously defrost by heat, so that the heat for defrosting is stored in advance by the heat storage structure 40, and then is defrosted when needed, thereby realizing maximum utilization of waste heat.
In the above embodiment, the defrosting air duct includes the hot air duct 13 and the cold air duct 14, two ends of the hot air duct 13 are respectively communicated with the evaporation chamber 11 and the condensation chamber 12, and two ends of the cold air duct 14 are respectively communicated with the evaporation chamber 11 and the condensation chamber 12; the evaporation chamber 11, the condensation chamber 12, the hot air duct 13 and the cold air duct 14 form a circulating air duct. The utility model discloses a refrigerator is through forming circulation wind channel with evaporating chamber 11, condensation chamber 12, hot-blast wind channel 13, cold wind channel 14 to can retrieve cold wind, make heat-retaining structure 40 release the heat more fast, improve the defrosting effect.
In the above embodiment, the fan 50 is provided in the condensation chamber 12, and the position of the fan 50 corresponds to the position of the condenser 30. The utility model discloses a refrigerator is through setting up fan 50 in condensation chamber 12 to corresponding with fan 50 position and condenser 30 position, can improve condenser 30's radiating effect, the used heat that makes condenser 30 produce can be faster enter into in the heat-retaining structure 40.
In the above embodiment, the refrigerator further includes the first damper 60, the first damper 60 being disposed in the case 10, the first damper 60 being used to open or close the defrosting duct. Specifically, two first air doors 60 may be provided, the two first air doors 60 are respectively disposed in the cold air duct 14 and the hot air duct 13, the housing 10 further includes an air inlet 15 and an air outlet 16, the air inlet 15 and the air outlet 16 are respectively communicated with the condensation chamber 12, and the air inlet 15 and the air outlet 16 are respectively provided with a second air door 70. The utility model discloses a refrigerator has a defrosting mode and a normal refrigeration mode; in the defrosting mode, the first damper 60 is opened and the second damper 70 is closed; in the normal cooling mode, the first damper 60 is closed and the second damper 70 is opened. The utility model discloses a refrigerator is through setting up first air door 60 and second air door 70, and the flow direction of switching air forms the circulation wind channel under the white mode of changing, and under normal refrigeration mode, condenser 30 can dispel the heat through air outlet 16 under fan 50's effect to improve refrigeration effect.
In the above embodiment, the refrigerator further includes the compressor 90, and the compressor 90 is disposed in the condensation chamber 12. The compressor 90 is in communication with the condenser 30 and the evaporator 20, and the compressor 90, the condenser 30 and the evaporator 20 are all in the same refrigerant compression cycle. The utility model discloses a refrigerator is through also setting up compressor 90 in condensation chamber 12 to also can utilize compressor 90's used heat to defrost evaporator 20, improve used heat utilization rate.
In the above embodiment, the housing 10 further includes a freezing chamber, a freezing air duct 17, a refrigerating chamber and a refrigerating air duct 18, the freezing chamber is communicated with the evaporation chamber 11 through the freezing air duct 17, and the refrigerating chamber is communicated with the evaporation chamber 11 through the refrigerating air duct 18; the refrigerator further includes a third damper 80, and the third damper 80 is used to control the opening and closing of the freezing duct 17 and the refrigerating duct 18. In the defrosting mode, the third damper 80 is closed; in the normal cooling mode, the third damper 80 is opened. The utility model discloses a refrigerator can make the refrigerator under the defrosting mode through setting up third air door 80, closes third air door 80, avoids during hot-air enters into walk-in or freezer, and under normal refrigeration mode, third air door 80 opens, resumes normally, makes during cold-air can enter into walk-in or freezer again to when avoiding changing the frost, walk-in or freezer temperature rise.
In the above embodiment, the refrigerator further includes a heating device provided in the evaporation chamber 11 for heating and defrosting the evaporator 20. In the defrosting process, the heating device can generate hot rising air flow in the heating process, and the hot rising air flow and the circulating hot air in the circulating air duct defrost the outside of the evaporator 20, so that the heat distribution is uniform, and the heat utilization rate of the heating device is also improved. Defrosting inside and outside simultaneously through cooperating with heating device, the defrosting scope is bigger, and heat distribution is more even, has avoided the condition that the refrigerant intensification that long-time heating leads to and then makes freezer or walk-in intensification. After frosting is melted by heating, can form the droplet and adhere to evaporator fin surface, at this moment, because there is hot gas flow to force the convection current to pass through evaporator 20, so can promote in the short time that the water droplet that remains on evaporator 20 surface evaporates and totally, the cold volume loss of this process of water droplet condensation when having avoided the start-up refrigeration mode once more. The hot air flow is defrosted in the air duct and then the temperature is reduced, and the hot air flow enters the condensing chamber 12 through the cold air return duct to cool the compressor 90 and the condenser 30. Wherein the heating device is preferably a resistance heating rod.
In the above embodiment, the heat storage structure 40 includes the heat storage layer, and the heat storage layer is disposed on the inner wall of the condensation chamber 12. The utility model discloses a refrigerator can maximize the area on heat storage layer through setting up heat storage layer on the inner wall of condensation chamber 12 to improve the heat storage volume.
In the above embodiments, the thermal storage layer employs a phase change material. The utility model discloses a refrigerator utilizes its latent heat that condenses the release to change the frost through adopting phase change material to improve and change the frost effect.
It is to be understood that the above-described embodiments of the present invention are merely examples provided for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.
Claims (12)
1. A refrigerator, characterized by comprising:
the refrigerator comprises a shell (10), wherein an evaporation chamber (11), a condensation chamber (12) and a defrosting air channel are arranged in the shell (10), and the evaporation chamber (11) is communicated with the condensation chamber (12) through the defrosting air channel;
an evaporator (20), the evaporator (20) being disposed within the evaporation chamber (11);
a condenser (30), the condenser (30) being disposed within the condensation chamber (12);
a heat storage structure (40), wherein the heat storage structure (40) is arranged in the condensation chamber (12) and is used for recovering the heat released by the condenser (30);
a fan (50), the fan (50) being disposed within the housing (10), the fan (50) being configured to cause convection between the evaporator (20) and the condenser (30) during defrosting.
2. The refrigerator according to claim 1,
the defrosting air channel comprises a hot air channel (13) and a cold air channel (14), two ends of the hot air channel (13) are respectively communicated with the evaporation chamber (11) and the condensation chamber (12), and two ends of the cold air channel (14) are respectively communicated with the evaporation chamber (11) and the condensation chamber (12);
the evaporation chamber (11), the condensation chamber (12), the hot air duct (13) and the cold air duct (14) form a circulating air duct.
3. The refrigerator according to claim 1 or 2,
the fan (50) is arranged in the condensing chamber (12), and the position of the fan (50) corresponds to the position of the condenser (30).
4. The refrigerator according to claim 1 or 2,
the refrigerator further comprises a first damper (60), wherein the first damper (60) is arranged in the shell (10), and the first damper (60) is used for opening or closing the defrosting air duct.
5. The refrigerator according to claim 4,
the shell (10) further comprises an air inlet (15) and an air outlet (16), the air inlet (15) and the air outlet (16) are respectively communicated with the condensation chamber (12), and second air doors (70) are respectively installed on the air inlet (15) and the air outlet (16).
6. The refrigerator according to claim 5,
the refrigerator is provided with a defrosting mode and a normal refrigerating mode;
in the defrost mode, the first damper (60) is open and the second damper (70) is closed;
in the normal cooling mode, the first damper (60) is closed and the second damper (70) is open.
7. The refrigerator according to claim 1, further comprising:
a compressor (90), the compressor (90) disposed within the condensing chamber (12).
8. The refrigerator according to claim 6,
the shell (10) further comprises a freezing chamber, a freezing air duct (17), a refrigerating chamber and a refrigerating air duct (18), wherein the freezing chamber is communicated with the evaporation chamber (11) through the freezing air duct (17), and the refrigerating chamber is communicated with the evaporation chamber (11) through the refrigerating air duct (18);
the refrigerator also comprises a third air door (80), and the third air door (80) is used for controlling the freezing air duct (17) and the refrigerating air duct (18) to be opened or closed.
9. The refrigerator according to claim 8,
in the defrost mode, the third damper (80) is closed;
in the normal cooling mode, the third damper (80) is opened.
10. The refrigerator according to claim 1, further comprising:
the heating device is arranged in the evaporation chamber (11) and is used for heating and defrosting the evaporator (20).
11. The refrigerator according to claim 1,
the heat storage structure (40) comprises a heat storage layer, and the heat storage layer is arranged on the inner wall of the condensation chamber (12).
12. The refrigerator according to claim 11,
the heat storage layer is made of phase-change materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021939628.5U CN212362560U (en) | 2020-09-07 | 2020-09-07 | Refrigerator adopting recovered hot defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021939628.5U CN212362560U (en) | 2020-09-07 | 2020-09-07 | Refrigerator adopting recovered hot defrosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212362560U true CN212362560U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021939628.5U Active CN212362560U (en) | 2020-09-07 | 2020-09-07 | Refrigerator adopting recovered hot defrosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212362560U (en) |
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2020
- 2020-09-07 CN CN202021939628.5U patent/CN212362560U/en active Active
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