CN218096770U - Refrigerator with deep cooling function - Google Patents

Abstract

The utility model belongs to the technical field of the refrigerator refrigeration, a refrigerator with cryrogenic function is specifically provided. The impracticable novel refrigerator aims at solving the problem that the refrigeration effect of a high-temperature refrigeration system is influenced when the refrigerator with a plurality of temperature areas refrigerates a deep cooling chamber at present. The utility model discloses a refrigerator includes box, one-level refrigerating system and second grade refrigerating system. The tank defines a first compartment and a cryogenic compartment. The primary refrigeration system comprises a primary compressor, a primary condenser, a first pressure reducing component and a first evaporator, wherein the primary compressor, the primary condenser, the first pressure reducing component and the first evaporator are sequentially connected end to end, the first evaporator is used for cooling the first chamber, and the auxiliary pressure reducing component and the auxiliary evaporator are sequentially connected in series between the primary condenser and the compressor. The secondary refrigeration system comprises a secondary compressor, a secondary condenser, a secondary drying filter and a secondary evaporator for cooling the deep cooling chamber which are sequentially connected end to end, and the primary refrigeration system and the secondary refrigeration system are independent from each other, so that the technical problem is solved.

Description

Refrigerator with deep cooling function

Technical Field

The utility model belongs to the technical field of the refrigerator refrigeration, a refrigerator with cryrogenic function is specifically provided.

Background

In order to meet the freezing and refrigerating requirements of users on different food materials, some refrigerators are provided with a plurality of temperature zones so as to store different food materials through different temperature zones. For example, some refrigerators are configured with a freezing compartment, a refrigerating compartment, and a deep cooling compartment such that the refrigerator provides a high temperature freezing environment (typically between-18 ℃ and-16 ℃) for food materials through the freezing compartment, a refrigerating environment (typically between 0 ℃ and 4 ℃) for food materials through the refrigerating compartment, and a low temperature freezing environment (typically between-60 ℃ and-45 ℃) for food materials through the deep cooling compartment.

In order to realize the purpose of freezing and refrigerating in the above-mentioned multiple temperature zones of the refrigerator, the existing refrigerator mostly adopts a cascade refrigeration system. Specifically, the cascade refrigeration system generally includes a high-temperature stage refrigeration system for refrigerating the freezing compartment and the refrigerating compartment, and a low-temperature stage refrigeration system for refrigerating the deep-cooling compartment. In order to make the low-temperature refrigeration system capable of producing cold at a lower temperature, the high-temperature refrigeration system and the low-temperature refrigeration system are often thermally connected together through a condensing evaporator (heat exchanger) so that the high-temperature refrigeration system absorbs heat of the low-temperature refrigeration system, thereby reducing the enthalpy value of a refrigerant in the whole low-temperature refrigeration system.

However, when the cryogenic compartment is refrigerated by the low-temperature-level refrigeration system, the existing cascade refrigeration system needs the high-temperature-level refrigeration system to work simultaneously, otherwise, the low-temperature refrigeration effect of the low-temperature-level refrigeration system cannot be realized. This phenomenon not only affects the cooling effect of the high-temperature stage cooling system, but also causes the stability of the entire cascade cooling system to be poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the refrigerator that has multi-temperature-zone at present and when refrigerating the cryrogenic compartment, influence the problem of high temperature refrigerating system refrigeration effect.

The utility model discloses a further aim at makes the high temperature level refrigerating system and the total cooling fan of low temperature level refrigerating system of refrigerator to make the structure of refrigerator compacter.

In order to achieve the above object, the utility model provides a refrigerator with cryrogenic function, the refrigerator includes:

a tank defining a first compartment and a cryogenic compartment;

the primary refrigeration system comprises a primary compressor, a primary condenser, a first pressure reducing component and a first evaporator, wherein the primary compressor, the primary condenser, the first pressure reducing component and the first evaporator are sequentially connected end to end;

second grade refrigerating system, it includes end to end's second grade compressor, second grade condenser, second grade drier-filter in proper order and is used for cooling the second grade evaporimeter of cryrogenic compartment, one-level refrigerating system with second grade refrigerating system is independent each other, does not influence each other.

Optionally, the first chamber is a freezing chamber, and the auxiliary pressure reducing member and the auxiliary evaporator are sequentially connected in series between the primary condenser and the first evaporator.

Optionally, the box further defines a second compartment, and the primary refrigeration system further includes a second pressure-reducing member and a second evaporator connected in series between the primary condenser and the first evaporator in sequence, and the second evaporator is configured to refrigerate the second compartment.

Optionally, the second compartment is a variable temperature compartment or a refrigerated compartment.

Optionally, the primary refrigeration system further includes a control valve, and the first pressure reducing member, the second pressure reducing member and the auxiliary pressure reducing member are respectively fluidly connected to the primary condenser through the control valve, so that the control valve controls a flow of refrigerant flowing out of the primary condenser to at least one of the first pressure reducing member, the second pressure reducing member and the auxiliary pressure reducing member.

Optionally, the refrigerant filled in the primary refrigeration system is a single medium, and the refrigerant filled in the secondary refrigeration system is a mixed medium.

Optionally, the refrigerant filled in the primary refrigeration system is R600a, and the refrigerants filled in the secondary refrigeration system are R600a and R290.

Optionally, the primary condenser and the secondary condenser are mounted on the tank at intervals;

the refrigerator also comprises a heat radiation fan arranged between the primary condenser and the secondary condenser,

and the heat radiation fan is used for driving air to cool the primary condenser and the secondary condenser.

Optionally, the heat rejection fan is an axial fan and the heat rejection fan is configured to drive air flow in a direction from the secondary condenser to the primary condenser.

Optionally, an interval between the cooling fan and the primary condenser is greater than an interval between the cooling fan and the secondary condenser.

Based on the foregoing description, it can be understood by those skilled in the art that in the foregoing technical solution of the present invention, by making the primary refrigeration system include the primary compressor, the primary condenser, the first pressure-reducing member and the first evaporator for cooling the first compartment which are connected end to end in sequence, the primary refrigeration system further includes the auxiliary pressure-reducing member and the auxiliary evaporator for cooling the cryogenic compartment which are connected in series in sequence between the primary condenser and the compressor, so that the primary refrigeration system can refrigerate the first compartment and the cryogenic compartment; the secondary refrigeration system can refrigerate the deep cooling chamber by enabling the secondary refrigeration system to comprise a secondary compressor, a secondary condenser, a secondary drying filter and a secondary evaporator which are sequentially connected end to end, wherein the secondary evaporator is used for cooling the deep cooling chamber. Therefore, the utility model discloses a refrigerator can make one-level refrigerating system stop work when refrigerating to cryrogenic compartment through second grade refrigerating system, avoids influencing the refrigeration effect of one-level refrigerating system to first compartment to consequently, promoted whole refrigerating system's stability.

Further, through set up radiator fan between one-level condenser and second grade condenser for one-level condenser and second grade condenser can total radiator fan, and it is relative for one-level condenser and second grade condenser dispose radiator fan respectively, the utility model discloses make the refrigerator structurally compacter.

It can be understood by those skilled in the art that the enthalpy of the refrigerant in the secondary refrigeration system is lower than the enthalpy of the refrigerant in the primary refrigeration system, so that the temperature of the secondary condenser is lower than the temperature of the primary condenser, therefore, the utility model discloses a make the cooling fan drive air flow along the direction from the secondary condenser to the primary condenser, make the cooling fan all work at the primary refrigeration system and the secondary refrigeration system, also can cool down the primary condenser and the secondary condenser simultaneously.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art will appreciate that elements or portions of the same reference number identified in different figures are the same or similar; the drawings of the present invention are not necessarily drawn to scale relative to each other. In the drawings:

fig. 1 is a schematic structural view of a housing according to some embodiments of the present invention;

fig. 2 is a schematic diagram of the refrigeration system according to some embodiments of the present invention;

fig. 3 is a schematic layout of a primary condenser, a secondary condenser and a heat dissipation fan according to some embodiments of the present invention;

FIG. 4 is a schematic structural diagram of a case according to another embodiment of the present invention;

fig. 5 is a schematic diagram of the refrigeration system according to another embodiment of the present invention.

Detailed Description

It is to be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, and not all embodiments of the present invention, and the part of the embodiments are intended to explain the technical principle of the present invention and not to limit the scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by a person skilled in the art without any inventive work should still fall within the scope of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Further, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, it should be noted that, in the description of the present invention, the terms "cold" and "heat" are two descriptions of the same physical state. That is, the higher the "cold" a certain object (e.g., evaporator, air, condenser, etc.) has, the lower the "heat" it has, and the lower the "cold" it has, the higher the "heat" it has. A certain target object can release heat while absorbing cold, and can absorb heat while releasing cold. Some object stores "cold" or "heat" in order to keep the object at its current temperature. "refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, i.e., a target (e.g., an evaporator) absorbs heat while it is refrigerating.

As shown in fig. 1 and 2, in some embodiments of the present invention, a refrigerator includes a cabinet 100, a primary refrigeration system 200, and a secondary refrigeration system 300.

As shown in fig. 1, the tank 100 defines a first compartment 111 and a cryogenic compartment 121.

In some embodiments of the present invention, the first compartment 111 is a freezer compartment. In addition, in other embodiments of the present invention, one skilled in the art may configure the first compartment 111 as a refrigerating compartment or a temperature-changing compartment, as needed.

As shown in fig. 2, in some embodiments of the present invention, the primary refrigeration system 200 comprises a primary compressor 201, a primary condenser 202, a dew prevention pipe 203, a primary filter drier 204, a control valve 205, a first pressure reducing member 206, a first evaporator 207, a primary liquid storage bag 208, an auxiliary pressure reducing member 209, and an auxiliary evaporator 210. The first evaporator 207 is used for cooling the first compartment 111. Auxiliary evaporator 210 is used to cool cryogenic compartment 121, particularly cryogenic compartment 121 when the temperature within cryogenic compartment 121 is high.

With continued reference to fig. 2, in the primary refrigeration system 200, the primary compressor 201, the primary condenser 202, the anti-dew pipe 203, the primary filter drier 204, the control valve 205, the first pressure reducing member 206, the first evaporator 207 and the primary liquid storage pack 208 are sequentially connected end to end, so that the refrigerant in the primary refrigeration system 200 flows along the following paths: the one-stage compressor 201 → the one-stage condenser 202 → the dew condensation preventing pipe 203 → the one-stage filter drier 204 → the control valve 205 → the first pressure reducing member 206 → the first evaporator 207 → the one-stage reservoir 208 → the one-stage compressor 201.

With continued reference to fig. 2, in the primary refrigeration system 200, the auxiliary pressure reducing device 209 and the auxiliary evaporator 210 are sequentially connected in series between the control valve 205 and the first evaporator 207, so that the refrigerant in the primary refrigeration system 200 flows along the following paths: the first-stage compressor 201 → the first-stage condenser 202 → the dew condensation preventing pipe 203 → the first-stage filter drier 204 → the control valve 205 → the auxiliary pressure reducing member 209 → the auxiliary evaporator 210 → the first evaporator 207 → the first-stage reservoir 208 → the first-stage compressor 201.

In other embodiments of the present invention, if the first compartment 111 is configured as a refrigerating compartment or a temperature-changing compartment, the outlet of the auxiliary evaporator 210 can be directly communicated with the inlet of the primary liquid storage bag 208, so that the refrigerant in the primary refrigeration system 200 flows along the following path: the first-stage compressor 201 → the first-stage condenser 202 → the dew condensation preventing pipe 203 → the first-stage filter drier 204 → the control valve 205 → the auxiliary pressure reducing member 209 → the auxiliary evaporator 210 → the first-stage reservoir 208 → the first-stage compressor 201. In other words, in this other embodiment, the auxiliary pressure decreasing means 209 and the auxiliary evaporator 210 are connected in parallel with the first pressure decreasing means 206 and the first evaporator 207.

In some embodiments of the present invention, the control valve 205 is an electrically controlled direction valve for flowing the refrigerant flowing from the first-stage condenser 202 to at least one of the first evaporator 207 and the auxiliary evaporator 210.

As shown in fig. 2, the first evaporator 207 and the auxiliary evaporator 210 are respectively provided with a fan so that the first evaporator 207 and the auxiliary evaporator 210 refrigerate the corresponding compartments by the corresponding extension units.

With continued reference to fig. 2, in some embodiments of the present invention, the first pressure-reducing member 206 and the auxiliary pressure-reducing member 209 are both capillary tubes. Further, one skilled in the art can also set at least one of the first pressure reducing member 206 and the auxiliary pressure reducing member 209 to any other possible pressure reducing member (e.g., an electronic expansion valve) as desired in other embodiments of the present invention.

As shown in fig. 2, in some embodiments of the present invention, the second-stage refrigeration system 300 includes a second-stage compressor 301, a second-stage condenser 302, a condenser 303, a second-stage filter drier 304, a second-stage filter drier 305, a second-stage evaporator 306, a second-stage liquid storage tank 307, a first air return pipe 308, and a second air return pipe 309. Wherein secondary evaporator 306 is also used to refrigerate cryogenic compartment 121. Optionally, the secondary evaporator 306 shares a fan with the auxiliary evaporator 210. Further alternatively, the secondary evaporator 306 and the auxiliary evaporator 210 are secured together by the same set of fins.

With continued reference to fig. 2, the secondary compressor 301, the secondary condenser 302, the condenser pipe 303, the secondary filter drier 304, the secondary filter drier 305, the secondary evaporator 306, the secondary liquid storage tank 307, the first air return pipe 308 and the second air return pipe 309 are connected end to end in sequence, so that the refrigerant in the secondary refrigeration system 300 flows along the following paths: the secondary compressor 301 → the secondary condenser 302 → the condenser pipe 303 → the secondary filter-drier 304 → the secondary filter-drier 305 → the secondary evaporator 306 → the secondary reservoir bag 307 → the first air return pipe 308 → the second air return pipe 309 → the secondary compressor 301.

With continued reference to fig. 2, in some embodiments of the present invention, the secondary filter-drier 305 is a capillary tube. Furthermore, one skilled in the art may also set the secondary filter drier 305 as any other feasible pressure reducing means (e.g., an electronic expansion valve) in other embodiments of the present invention, as desired.

Continuing with fig. 2, the first return pipe 308 is thermally connected to the secondary filter-drier 305, so that the first return pipe 308 absorbs heat of the refrigerant in the secondary filter-drier 305, thereby increasing the supercooling degree of the refrigerant in the secondary filter-drier 305 and improving the refrigerating capacity of the secondary evaporator 306. Further, the first return air pipe 308 and the secondary filter-drier 305 may be thermally connected together using any feasible thermal connection, such as wrapping the two together with insulation wool.

Continuing to refer to fig. 2, the second air return pipe 309 is thermally connected to the condensation pipe 303, so that the second air return pipe 309 absorbs heat of the refrigerant in the condensation pipe 303, thereby increasing the supercooling degree of the refrigerant in the condensation pipe 303 and improving the refrigerating capacity of the secondary evaporator 306. Further, the second muffler 309 and the condenser 303 may be thermally connected together using any feasible thermal connection, such as wrapping the two together with insulation wool.

As can be understood by those skilled in the art, the temperature of the refrigerant flowing out of the secondary evaporator 306 is still low, so that the refrigerant in the secondary filter drier 305 is cooled by the refrigerant with a lower temperature in the first air return pipe 308, and the condenser pipe 303 is cooled by the refrigerant with a higher temperature (relative to the temperature of the refrigerant in the first air return pipe 308) in the second air return pipe 309, so that the cooling capacity of the refrigerant between the outlet of the secondary evaporator 306 and the inlet of the secondary compressor 301 is fully utilized, and the refrigeration efficiency of the secondary refrigeration system 300 is improved.

Further, in some embodiments of the present invention, the refrigerant filled in the one-stage refrigeration system 200 is a single medium, and the refrigerant filled in the second-stage refrigeration system 300 is a mixed medium. Preferably, the refrigerant filled in the first-stage refrigeration system 200 is R600a, and the refrigerants filled in the second-stage refrigeration system 300 are R600a and R290.

In addition, in other embodiments of the present invention, a person skilled in the art may also configure the refrigerant filled in the primary refrigeration system 200 as a mixed medium according to needs.

As shown in fig. 3, in some embodiments of the present invention, the refrigerator further includes a heat dissipation fan 400 disposed between the first-stage condenser 202 and the second-stage condenser 302, and the heat dissipation fan 400 is used for driving air to cool the first-stage condenser 202 and the second-stage condenser 302.

Further, in some embodiments of the present invention, the heat dissipation fan 400 is preferably an axial fan, and the heat dissipation fan 400 is configured to drive air to flow in a direction from the secondary condenser 302 to the primary condenser 202.

In other embodiments of the present invention, the skilled in the art can set the heat dissipation fan 400 to any other feasible fan, such as a centrifugal fan, as needed.

In other embodiments of the present invention, a person skilled in the art can also drive the air to flow in the direction from the secondary condenser 302 to the primary condenser 202 when the cooling fan 400 rotates forward, so as to cool the secondary condenser 302; when the radiator fan 400 is reversed, the air is driven in the direction from the primary condenser 202 to the secondary condenser 302 to cool the primary condenser 202.

Still further, the interval between the radiator fan 400 and the primary condenser 202 is larger than the interval between the radiator fan 400 and the secondary condenser 302, so as to ensure the cooling efficiency of the radiator fan 400 on the secondary condenser 302.

Based on the foregoing description, it can be understood by those skilled in the art that, in some embodiments of the present invention, when the refrigerator refrigerates the deep cooling compartment 121 through the secondary refrigeration system 300, the primary refrigeration system 200 can be stopped, so as to avoid affecting the refrigeration effect of the primary refrigeration system 200 on the first compartment 111, and thus improve the stability of the whole refrigeration system.

Further, through set up radiator fan 400 between one-level condenser 202 and second grade condenser 302 for one-level condenser 202 and second grade condenser 302 can have a radiator fan 400 in common, for one-level condenser 202 and second grade condenser 302 respectively dispose a radiator fan relatively, the utility model discloses make the refrigerator structurally compacter.

It can be understood by those skilled in the art that, since the enthalpy of the refrigerant in the secondary refrigeration system 300 is lower than the enthalpy of the refrigerant in the primary refrigeration system 200, so that the temperature of the secondary condenser 302 is lower than the temperature of the primary condenser 202, the present invention makes the heat dissipation fan 400 drive the air to flow along the direction from the secondary condenser 302 to the primary condenser 202, so that the heat dissipation fan 400 can also cool down the primary condenser 202 and the secondary condenser 302 simultaneously when the primary refrigeration system 200 and the secondary refrigeration system 300 are both working.

Further embodiments of the present invention will be described in detail below with reference to fig. 4 and 5.

It should be noted that, for convenience of description and to enable those skilled in the art to quickly understand the technical solution of the present invention, only the differences between the other embodiments and the previous embodiments are described in detail. For other embodiments that are the same as some of the previous embodiments, those skilled in the art can refer to the description of some of the previous embodiments.

As shown in fig. 4, unlike some of the embodiments described above, in other embodiments of the present invention, the box 100 further defines a second compartment 112, and the second compartment 112 is a variable temperature compartment or a refrigeration compartment.

As shown in fig. 5, unlike some of the embodiments described above, in other embodiments of the present invention, the one-stage refrigeration system 200 further includes a second pressure-reducing member 211 and a second evaporator 212. The second pressure reducing member 211 and the second evaporator 212 are sequentially connected in series between the control valve 205 and the first evaporator 207, so that the refrigerant in the primary refrigeration system 200 flows along the following paths: the first-stage compressor 201 → the first-stage condenser 202 → the dew condensation preventing pipe 203 → the first-stage drying filter 204 → the control valve 205 → the second pressure reducing member 211 → the second evaporator 212 → the first evaporator 207 → the first-stage receiver 208 → the first-stage compressor 201.

In any of the embodiments described above, the primary refrigeration system 200 may be operated alone during the refrigeration of the first compartment 111 and/or the second compartment 112; during the process of refrigerating the cryogenic compartment 121, the primary refrigeration system 200 or the secondary refrigeration system 300 may be operated independently to avoid the interaction between the primary refrigeration system 200 and the secondary refrigeration system 300.

Alternatively, one skilled in the art may operate both primary refrigeration system 200 and secondary refrigeration system 300 to rapidly cool cryogenic compartment 121 when the temperature within cryogenic compartment 121 is high (e.g., greater than-18℃.) as desired. When the temperature within cryogenic compartment 121 is low (e.g., below-18℃.), only secondary refrigeration system 300 is operated.

So far, the technical solutions of the present invention have been described in connection with the foregoing embodiments, but it is easily understood by those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Without deviating from the technical principle of the present invention, those skilled in the art can split and combine the technical solutions in the above embodiments, and also can make equivalent changes or substitutions for related technical features, and any changes, equivalent substitutions, improvements, etc. made within the technical concept and/or technical principle of the present invention will fall within the protection scope of the present invention.

Claims (10)

1. A refrigerator with a deep cooling function, the refrigerator comprising:

a tank defining a first compartment and a cryogenic compartment;

the primary refrigeration system comprises a primary compressor, a primary condenser, a first pressure reducing component and a first evaporator, wherein the primary compressor, the primary condenser, the first pressure reducing component and the first evaporator are sequentially connected end to end;

second grade refrigerating system, it includes end to end's second grade compressor, second grade condenser, second grade drier-filter in proper order and is used for cooling the second grade evaporimeter of cryrogenic compartment, one-level refrigerating system with second grade refrigerating system is independent each other, does not influence each other.

2. The refrigerator with cryogenic function according to claim 1,

the first compartment is a freezer compartment,

the auxiliary pressure reducing component and the auxiliary evaporator are sequentially connected in series between the primary condenser and the first evaporator.

3. The refrigerator with deep cooling function according to claim 2,

the box body also defines a second compartment,

the primary refrigeration system further comprises a second pressure reduction component and a second evaporator which are sequentially connected in series between the primary condenser and the first evaporator, and the second evaporator is used for refrigerating the second chamber.

4. The refrigerator with deep cooling function according to claim 3,

the second compartment is a temperature-changing compartment or a refrigerating compartment.

5. The refrigerator with deep cooling function according to claim 4,

the primary refrigeration system further includes a control valve,

the first pressure reducing member, the second pressure reducing member and the auxiliary pressure reducing member are respectively in fluid connection with the primary condenser through the control valve, so that the control valve controls the refrigerant flowing out of the primary condenser to flow to at least one of the first pressure reducing member, the second pressure reducing member and the auxiliary pressure reducing member.

6. The refrigerator with deep cooling function according to claim 1,

the refrigerant filled in the primary refrigeration system is a single medium, and the refrigerant filled in the secondary refrigeration system is a mixed medium.

7. The refrigerator with deep cooling function according to claim 6,

the refrigerant filled in the primary refrigeration system is R600a, and the refrigerant filled in the secondary refrigeration system is R600a and R290.

8. The refrigerator with deep cooling function according to any one of claims 1 to 7,

the first-stage condenser and the second-stage condenser are arranged on the box body at intervals;

the refrigerator also comprises a heat radiation fan arranged between the primary condenser and the secondary condenser,

and the heat radiation fan is used for driving air to cool the primary condenser and the secondary condenser.

9. The refrigerator with deep cooling function according to claim 8,

the heat dissipation fan is an axial flow fan, and the heat dissipation fan is configured to drive air to flow in a direction from the secondary condenser to the primary condenser.

10. The refrigerator with deep cooling function according to claim 9,

the interval between the cooling fan and the primary condenser is larger than the interval between the cooling fan and the secondary condenser.

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