CN117287915A - Refrigeration assembly and refrigerator - Google Patents

Abstract

The invention provides a refrigeration assembly and a refrigerator. The refrigeration assembly comprises a box body; defrosting water tank; a freezing evaporator; a defrosting heating structure; a water supply structure; the refrigerating assembly is provided with a defrosting mode, when the refrigerating assembly is in the defrosting mode, the return air inlet is closed, and the water supply structure supplies water into the defrosting water tank. According to the refrigeration assembly and the refrigerator provided by the invention, the freezing evaporator is arranged in the defrosting water tank, the water supply structure is used for supplying water to the freezing evaporator, the return air inlet is closed to prevent water and heat from being transferred into the compartment, hot air during defrosting cannot be generated and enter the compartment, the temperature in the compartment is basically prevented from changing, the freezing evaporator is submerged along with the gradual water supply of the water supply structure, the specific heat capacity of water is higher than that of air, the defrosting efficiency of the freezing evaporator is improved, the fresh-keeping storage effect of the compartment is effectively ensured, the defrosting effect is effectively improved, and the user experience is improved.

Description

Refrigeration assembly and refrigerator

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigeration assembly and a refrigerator.

Background

In order to improve the fresh-keeping effect of the refrigerator and the longer fresh-keeping time requirement of part of food materials, lower compartment temperature is needed, and the common freezing compartment can only meet the conventional requirement at-18 ℃, and part of high-grade food materials such as tuna also need lower temperature, for example, the compartment reaches-50 ℃. However, when the temperature of the compartment reaches about-50 ℃, the evaporator frosts faster at this time, and the time required for keeping the temperature of the compartment to reach the set temperature is longer, which affects the power consumption of the refrigerator, so timely defrosting is required to ensure the heat exchange efficiency of the evaporator. In the prior art, an electric heating structure is generally arranged below an evaporator, the electric heating structure is electrified to generate heat, the evaporator is defrosted along with rising of hot air, and after the electric heating structure is started for a long time, the radiated heat can extend to an upper refrigerating air duct along a return air inlet and an air outlet of a refrigerating air duct, so that the temperature of a compartment is greatly increased, for example, the temperature of a compartment at-50 ℃ is easily and directly increased to-14 ℃ or higher, the temperature fluctuation is extremely large, the low temperature is required to be pulled again after defrosting, the time and electricity consumption are long, the fresh-keeping storage effect can be influenced, and the user experience is seriously influenced.

Disclosure of Invention

In order to solve the technical problems that the time and the electricity are consumed when defrosting the evaporator in the prior art, and the safety effect can be influenced to influence the user experience, the refrigerating assembly and the refrigerator are provided, wherein the defrosting effect is improved by utilizing the defrosting water tank to soak and defrost the evaporator, and the heat is reduced to be transferred into the refrigerating chamber so as to ensure the storage effect.

A refrigeration assembly, comprising:

the box body is internally provided with a compartment;

the defrosting water tank is arranged in the tank body, an air return opening and an air outlet are formed in the defrosting water tank, and the compartment is communicated with the air return opening and the air outlet;

the freezing evaporator is arranged in the defrosting water tank;

the defrosting heating structure is arranged in the defrosting water tank;

the water supply structure is communicated with the defrosting water tank;

the refrigerating assembly is provided with a defrosting mode, when the refrigerating assembly is in the defrosting mode, the return air inlet is closed, and the water supply structure supplies water into the defrosting water tank.

The refrigeration assembly further comprises a liquid seal structure, the liquid seal structure is arranged at the air return opening, and the liquid seal structure is communicated with the defrosting water tank.

The liquid seal structure comprises a liquid seal shell and a baffle, wherein the baffle is arranged in the liquid seal shell and divides the interior of the liquid seal shell into a first communication cavity and a second communication cavity, a space is reserved between the upper end of the baffle and the top surface of the liquid seal shell, the first communication cavity and the second communication cavity are communicated through the space, a first communication port is arranged on the first communication cavity, the first communication port is communicated with the compartment, a second communication port is arranged on the second communication cavity, the second communication port is communicated with the return air port, and the first communication port and the second communication port are all positioned below the space.

The upper end of the partition plate is positioned at a level higher than the level at which the highest point of the freezing evaporator is positioned.

The refrigeration assembly further comprises a limiter, the limiter is arranged in the second communication cavity, the horizontal plane of the limiter is lower than the horizontal plane of the upper end of the partition plate, and the horizontal plane of the limiter is higher than the horizontal plane of the highest point of the refrigeration evaporator.

The first communication port is positioned at the lower half part of the first communication cavity, and the second communication port is positioned at the lower half part of the second communication cavity.

The refrigerating assembly further comprises a refrigerating evaporator and a water receiving disc, the refrigerating evaporator is arranged in the box body, the water receiving disc is located below the refrigerating evaporator, and the water receiving disc forms the water supply structure.

The refrigerating assembly further comprises a refrigerating water tank, the refrigerating water tank is arranged in the box body, a water outlet of the water receiving tray is communicated with the refrigerating water tank, and the refrigerating water tank forms the water supply structure.

The refrigerating assembly further comprises a drainage structure, the drainage structure is arranged in the defrosting water tank, and an outlet of the drainage structure is communicated with the refrigerating water tank.

The refrigerating water tank is positioned above the defrosting water tank, a communicating pipe is arranged between the refrigerating water tank and the defrosting water tank, and an anti-freezing structure is arranged on the communicating pipe; and/or the communicating pipe is provided with an on-off mechanism.

The freeze evaporator is provided with a hydrophobic layer.

The refrigeration assembly further comprises a refrigeration fan, the refrigeration fan is arranged at the air outlet, and the refrigeration fan can exhaust air to the refrigeration evaporator.

A refrigerator comprises the refrigeration assembly.

According to the refrigeration assembly and the refrigerator, the freezing evaporator is arranged in the defrosting water tank, when defrosting of the freezing evaporator is started, the water supply structure can be used for supplying water to the freezing evaporator, the water provided by the water supply structure is used for flushing the freezing evaporator at the starting stage of defrosting, part of frost layers on the freezing evaporator are flushed, meanwhile, the air return opening is closed, water and heat are prevented from being transferred into the compartment, hot air during defrosting is prevented from entering the compartment, the temperature in the compartment is basically prevented from being changed, the freezing evaporator is submerged along with gradual water supply of the water supply structure, at the moment, the defrosting heating structure heats the water, the specific heat capacity of the water is higher than the specific heat capacity of air, defrosting efficiency of the freezing evaporator is improved, radiation is prevented from being generated when the freezing evaporator is immersed in the water, the temperature influence of the heat generated by the defrosting heating structure on the compartment is further reduced, the fresh-keeping effect of the compartment is effectively ensured, and meanwhile, the defrosting effect is effectively improved, and user experience is improved.

Drawings

Fig. 1 is a schematic structural diagram of a refrigeration assembly according to an embodiment of the present invention;

FIG. 2 is a side cross-sectional view of a refrigeration assembly provided in an embodiment of the present invention;

FIG. 3 is a flow chart of the gas during normal refrigeration of the refrigeration evaporator in the refrigeration assembly according to the embodiment of the invention;

FIG. 4 is a simplified diagram of a refrigeration assembly according to an embodiment of the present invention when the refrigeration evaporator is normally refrigerating;

fig. 5 is a schematic structural diagram of a refrigeration assembly according to an embodiment of the present invention when a freezing evaporator is frosted;

in the figure:

1. a case; 11. a compartment; 2. defrosting water tank; 21. an air return port; 22. an air outlet; 3. a freezing evaporator; 4. a defrosting heating structure; 5. a liquid seal structure; 51. a liquid seal housing; 52. a partition plate; 53. a first communication chamber; 54. a second communication chamber; 55. spacing; 6. a limiter; 7. a refrigerated evaporator; 8. a water receiving tray; 9. a refrigerated water tank; 10. a refrigerating fan.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in other environments. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements 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 the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

In order to improve the fresh-keeping effect of the refrigerator and the longer fresh-keeping time requirement of part of food materials, lower compartment temperature is needed, and the common freezing compartment can only meet the conventional requirement at-18 ℃, and part of high-grade food materials such as tuna also need lower temperature, for example, the compartment reaches-50 ℃. However, when the temperature of the compartment reaches about-50 ℃, the evaporator frosts faster at this time, and the time required for keeping the temperature of the compartment to reach the set temperature is longer, which affects the power consumption of the refrigerator, so timely defrosting is required to ensure the heat exchange efficiency of the evaporator. For example, in the prior art, there is a method of heating brine by using heat of a condenser and spraying brine onto an evaporator to defrost, although an electric heating structure is avoided, brine temperature in the technical scheme is higher, and water vapor which is atomized when a frost layer is melted during defrosting, if the brine is used in a refrigerator, the whole air duct and a compartment have larger water vapor and heat, which affects the compartment temperature, that is, in the prior art, the compartment temperature is caused to affect the fresh-keeping and refrigerating effects in the compartment, and therefore, the application provides a refrigerating assembly as shown in fig. 1 to 5, which comprises: a case 1, wherein a compartment 11 is formed in the case 1; the defrosting water tank 2 is arranged in the tank body 1, an air return opening 21 and an air outlet 22 are formed in the defrosting water tank 2, and the compartment 11 is communicated with the air return opening 21 and the air outlet 22 to form an air flow circulation channel; a freezing evaporator 3, wherein the freezing evaporator 3 is arranged in the defrosting water tank 2; a defrosting heating structure 4, wherein the defrosting heating structure 4 is arranged in the defrosting water tank 2, and the defrosting heating structure 4 is positioned below the freezing evaporator 3; a water supply structure which is communicated with the defrosting water tank 2; the refrigerating assembly has a defrosting mode, when the refrigerating assembly is in the defrosting mode, the air return opening 21 is closed, and the water supply structure supplies water into the defrosting water tank 2. The freezing evaporator 3 is arranged in the defrosting water tank 2, when defrosting of the freezing evaporator 3 is started, water can be supplied to the freezing evaporator 3 through the water supply structure, the freezing evaporator 3 is flushed through water supplied through the water supply structure at the starting stage of defrosting, partial frost layers on the freezing evaporator 3 are flushed, meanwhile, the return air port 21 is closed, water and heat are prevented from being transferred into the compartment 11, hot air during defrosting cannot be generated and enter the compartment 11, the temperature in the compartment 11 is basically not changed, the freezing evaporator 3 is submerged along with gradual water supply of the water supply structure, at the moment, the defrosting heating structure 4 heats the water, the specific heat capacity of the water is higher than the specific heat capacity of air, the defrosting efficiency of the freezing evaporator 3 is improved, meanwhile, the freezing evaporator 3 is immersed in the water and cannot generate radiation, the temperature influence of the heat generated by the defrosting heating structure 4 on the compartment 11 can be further reduced, the fresh-keeping storage effect of the compartment 11 is effectively guaranteed, and meanwhile, the defrosting effect can be effectively improved, and user experience is improved.

When the refrigeration assembly works normally, the compressor provides low-temperature refrigerants for the freezing evaporator 3, gas in the compartment 11 can enter the defrosting water tank 2 through the air return opening 21 and is in contact heat exchange with the freezing evaporator 3, the heat exchanged gas flows back into the compartment 11 through the air outlet 22, namely, the gas can circulate in the freezing evaporator 3 and the compartment 11, so that the purpose of refrigerating the compartment 11 by the freezing evaporator 3 is achieved, at the moment, the air return opening 21 of the defrosting water tank 2 is in an open state to ensure that the gas smoothly flows into the defrosting water tank 2, and the defrosting heating structure 4 stops working.

When the refrigerating assembly is used for defrosting, the air return opening 21 is closed, the water supply structure starts to fill water into the defrosting water tank 2, water of the water supply structure starts to wash the freezing evaporator 3, part of frost layers on the freezing evaporator 3 are washed away, meanwhile, the air return opening 21 is closed to avoid water and heat transfer into the compartment 11, hot air during defrosting cannot be generated and enter the compartment 11, the temperature in the compartment 11 is basically not changed, the freezing evaporator 3 is submerged along with gradual water supply of the water supply structure, at the moment, the defrosting heating structure 4 heats the water, the specific heat capacity of the water is higher than the specific heat capacity of air, defrosting efficiency of the freezing evaporator 3 is improved, radiation is not generated when the freezing evaporator 3 is immersed in the water, the temperature influence of heat generated by the defrosting heating structure 4 on the compartment 11 can be further reduced, the fresh-keeping storage effect of the compartment 11 is effectively guaranteed, and meanwhile, the defrosting effect can be effectively improved, and user experience is improved. Meanwhile, after the water surface does not cool the freezing evaporator 3, water seals are formed at the positions of the air return opening 21 and the air outlet 22, heat is only transferred inside the defrosting water tank 2, and the heat radiated to the freezing compartment 11 through the water surface is smaller (at the moment, the water temperature is lower and the freezing compartment cannot boil). Conventional defrosting heaters of the prior art, typically 200w, have resulted in temperature fluctuations within the compartment 11, whereas the power of the defrosting heating structure 4 can be increased (e.g. to 1000w to 2000 w) due to the presence of the water seal in the present application, thereby enabling a multiple shortening of the defrosting cycle. Wherein the defrosting heating structure 4 may be an electric heating structure.

After defrosting is finished, water in the defrosting water tank 2 is discharged out of the defrosting water tank 2, the air return opening 21 is opened, and the compressor supplies refrigerant for the freezing evaporator 3 again.

In order to simplify the structure of the refrigeration assembly and ensure the sealing effect of the air return opening 21, the refrigeration assembly further comprises a liquid seal structure 5, wherein the liquid seal structure 5 is arranged at the air return opening 21, and the liquid seal structure 5 is communicated with the defrosting water tank 2. After the water supply structure supplies water into the defrosting water tank 2, water can flow into the liquid seal structure 5 to achieve a sealing effect, so that the sealing effect of the air return opening 21 is guaranteed, water is prevented from flowing into the room 11, and meanwhile, automatic sealing is achieved without arranging a control structure, and sealing reliability of the air return opening 21 is guaranteed. As an embodiment, the liquid sealing structure 5 includes a liquid sealing shell 51 and a partition plate 52, the partition plate 52 is disposed in the liquid sealing shell 51 and divides the interior of the liquid sealing shell 51 into a first communication cavity 53 and a second communication cavity 54, a space 55 is formed between the upper end of the partition plate 52 and the top surface of the liquid sealing shell 51, the first communication cavity 53 and the second communication cavity 54 are communicated by the space 55, a first communication port is disposed on the first communication cavity 53 and is communicated with the compartment 11, a second communication port is disposed on the second communication cavity 54 and is communicated with the return air inlet 21, and both the first communication port and the second communication port are located below the space 55. The water in the defrosting water tank 2 can flow into the second communication cavity 54 through the second communication opening, the water cannot enter the first communication cavity 53 due to the blocking of the partition plate 52, and the second communication opening is blocked along with the rising of the water level in the defrosting water tank 2, and at the moment, the gas cannot flow in the liquid seal shell 51, so that the air return opening 21 is sealed. And when the refrigeration assembly works normally, water is not contained in the liquid seal shell 51 and the defrosting water tank 2, and the gas in the time chamber 11 can sequentially enter the air return opening 21 through the first communication opening, the first communication cavity 53, the interval 55, the second communication cavity 54 and the second communication opening, so that the normal flow of the gas is realized, and the refrigeration effect of the refrigeration evaporator 3 on the time chamber 11 is ensured. Further, due to the communicating vessel principle, the water level in the second communicating chamber 54 will rise with the water level in the defrosting water tank 2, so as to ensure that the liquid level in the defrosting water tank 2 will not flow into the first communicating chamber 53 through the space 55 when the freezing evaporator 3 is not in use, and the level of the upper end of the partition plate 52 is higher than the level of the highest point of the freezing evaporator 3. At this time, the water level in the defrosting water tank 2 can submerge the freezing evaporator 3, but cannot flow into the first communicating cavity 53 through the space 55, and cannot enter the compartment 11 through the first communicating cavity 53 and the first communicating port, so that the reliability of the refrigerating assembly is ensured.

The refrigeration assembly further comprises a limiter 6, the limiter 6 is arranged in the second communication cavity 54, the level of the limiter 6 is lower than the level of the upper end of the partition plate 52, and the level of the limiter 6 is higher than the level of the highest point of the freezing evaporator 3. The water level in the second communication cavity 54 is detected by the limiter 6, when the water level in the second communication cavity 54 reaches the limiter 6, the water level in the defrosting water tank 2 is indicated to be immersed in the freezing evaporator 3 at the moment, the freezing evaporator 3 can be defrosted, the water supply structure stops supplying water to the defrosting water tank 2 at the moment, the water level does not rise, and therefore the water does not flow into the first communication cavity 53 through the interval 55, and the working reliability of the refrigeration assembly is guaranteed.

Preferably, the limiter 6 may be a water level detection mechanism, and the water level in the defrosting water tank 2 can be determined by directly detecting the water level in the second communication cavity 54 by using the water level detection mechanism.

Or, the limiter 6 includes a float and a contact switch, the float is disposed in the second communication chamber 54 and can move along with the water level in the second communication chamber 54, when the float moves to a set position, the contact switch is triggered to judge that the water level reaches a preset value, and the contact switch sends a water supply stopping signal to the water supply structure.

In order to avoid that water is stored in the second communication chamber 54, which would cause gas to carry this part of the water to the freeze evaporator 3, which would cause an increase in the frosting frequency of the freeze evaporator 3, for this purpose the first communication port is located in the lower half of the first communication chamber 53 and the second communication port is located in the lower half of the second communication chamber 54. When the defrosting water tank 2 is drained, water in the second communication cavity 54 can be synchronously drained, so that water cannot be stored in the second communication cavity 54, the frosting frequency of the freezing evaporator 3 is reduced, and the working efficiency of the refrigerating assembly is improved.

As an embodiment, the refrigeration assembly further comprises a refrigeration evaporator 7 and a water receiving disc 8, wherein the refrigeration evaporator 7 is arranged in the box body 1, the water receiving disc 8 is positioned below the refrigeration evaporator 7, and the water receiving disc 8 forms the water supply structure. The room 11 includes cold-stored room and freezing room, cold-stored evaporator 7 can refrigerate cold-stored room 11, freezing evaporator 3 can refrigerate the freezing room, because the temperature is in 0 ℃ or 2 ℃ to 8 ℃ in the cold-stored room 11 generally for the gaseous vapor's that flows to cold-stored evaporator 7 department content is great, cold-stored evaporator 7's temperature need not be too low simultaneously, consequently, cold-stored evaporator 7 department can produce the comdenstion water, water collector 8 can accept the comdenstion water, and when defrosting freezing evaporator 3, send the comdenstion water of collecting into defrosting water tank 2 in order to supply with freezing evaporator 3 and defrost, need not to mend the water source from refrigeration module's outside, improve refrigeration module's convenience. And the water temperature of the condensed water generated at the refrigerating evaporator 7 is between 0 ℃ or 2 ℃ and 8 ℃, and the water temperature sent to the freezing evaporator 3 has some influence on the freezing compartment 11 if too high, so that the water temperature sent to the defrosting water tank 2 is reduced as much as possible in order to reduce the temperature fluctuation as much as possible, and the temperature of the condensed water generated at the refrigerating evaporator 7 is lower, so that the water temperature requirement of the defrosting water tank 2 is just met.

Because the freezing evaporator 3 does not defrost frequently, and the refrigerating evaporator 7 is in the refrigeration assembly and can continuously produce condensed water when working, therefore, the refrigeration assembly also comprises a refrigerating water tank 9, the refrigerating water tank 9 is arranged in the box body 1, the water outlet of the water receiving disc 8 is communicated with the refrigerating water tank 9, and the refrigerating water tank 9 forms the water supply structure. The condensate water is collected and stored by utilizing the refrigerating water tank 9, so that the refrigerating evaporator 7 and the water receiving disc 8 can work normally, the water quantity of the condensate water can be ensured to meet the defrosting requirement of the freezing evaporator 3, and the defrosting reliability of the refrigerating assembly is ensured.

In order to further improve the defrosting effect on the freezing evaporator 3, the refrigerating assembly further comprises a drainage structure which is arranged in the defrosting water tank 2, and the outlet of the drainage structure is communicated with the refrigerating water tank 9. The water in the defrosting water tank 2 is pumped into the refrigerating water tank 9 by utilizing the water draining structure, and then flows into the defrosting water tank 2 from the refrigerating water tank 9, so that the flow of water is realized, the convection heat exchange is formed in the defrosting water tank 2 by utilizing the flow of water, and the defrosting effect is further increased while the freezing evaporator 3 is soaked.

The refrigerating water tank 9 is located above the defrosting water tank 2, a communicating pipe is arranged between the refrigerating water tank 9 and the defrosting water tank 2, and an anti-freezing structure is arranged on the communicating pipe. The water in the refrigeration water tank 9 is drained into the defrosting water tank 2 by using the communicating pipe, and the inside of the communicating pipe is frozen due to the lower temperature of the freezing evaporator 3, so that the communicating pipe is provided with an anti-freezing structure to heat the inside of the communicating pipe, thereby ensuring the connectivity of the communicating pipe. The anti-freezing structure can be an electric heating wire, and the electric heating wire surrounds the outer wall of the communicating pipe. Since less heat is generated by the freeze-proof structure, there is substantially no excessive influence on the temperature of the compartment 11.

And in order to realize the communication control between the refrigerating water tank 9 and the defrosting water tank 2, an on-off mechanism is arranged on the communicating pipe. When the water supply to the defrosting water tank 2 is needed, the on-off mechanism is switched to the communication state, and the water of the refrigerating water tank 9 can flow into the defrosting water tank 2 through the communication pipe, and when the water supply to the defrosting water tank 2 is not needed, the on-off mechanism is switched to the off state.

The freeze evaporator 3 is provided with a hydrophobic layer. The water-repellent layer is utilized to reduce the retention of water on the freezing evaporator 3 as much as possible, so that the freezing evaporator 3 is prevented from frosting again when working, and the reliability of the refrigeration assembly is improved. Preferably, the hydrophobic layer may be selected to be a hydrophobic aluminum foil.

The refrigeration assembly further comprises a refrigeration fan 10, the refrigeration fan 10 is arranged at the air outlet 22, and the refrigeration fan 10 can exhaust air to the refrigeration evaporator 3. When the refrigerating assembly performs refrigerating operation, the refrigerating fan 10 generates negative pressure at the air outlet 22 to force air in the compartment 11 to enter the defrosting water tank 2 through the air return opening 21, performs heat exchange with the refrigerating evaporator 3, and then completes refrigerating after being sent into the compartment 11 through the air outlet 22 and the refrigerating fan 10. After defrosting is finished, the refrigerating fan 10 reversely rotates to blow air to the refrigerating evaporator 3, so that water on the refrigerating evaporator 3 is blown off, water storage on the refrigerating evaporator 3 is further avoided, and the reliability of the refrigerating assembly is further guaranteed. Specifically, after defrosting is completed, the freezing blower 10 may be turned on for a short time to blow the freezing evaporator 3, for example, 10 seconds. Then when the temperature of the freezing evaporator 3 reaches the requirement again (for example, -50 ℃ to-60 ℃), the freezing blower 10 is turned on to supply air into the compartment 11.

A refrigerator comprises the refrigeration assembly.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (13)

1. A refrigeration assembly, characterized by: comprising the following steps:

the box body (1), a compartment (11) is formed in the box body (1);

the defrosting water tank (2), the defrosting water tank (2) is arranged in the tank body (1), an air return opening (21) and an air outlet (22) are formed in the defrosting water tank (2), and the compartment (11) is communicated with the air return opening (21) and the air outlet (22);

a freezing evaporator (3), wherein the freezing evaporator (3) is arranged in the defrosting water tank (2);

a defrosting heating structure (4), wherein the defrosting heating structure (4) is arranged in the defrosting water tank (2);

the water supply structure is communicated with the defrosting water tank (2);

the refrigerating assembly is provided with a defrosting mode, when the refrigerating assembly is in the defrosting mode, the return air inlet (21) is closed, and the water supply structure supplies water into the defrosting water tank (2).

2. The refrigeration assembly of claim 1, wherein: the refrigeration assembly further comprises a liquid seal structure (5), the liquid seal structure (5) is arranged at the air return opening (21), and the liquid seal structure (5) is communicated with the defrosting water tank (2).

3. A refrigeration assembly as set forth in claim 2 wherein: the liquid seal structure (5) comprises a liquid seal shell (51) and a partition plate (52), wherein the partition plate (52) is arranged in the liquid seal shell (51), the liquid seal shell (51) is internally divided into a first communication cavity (53) and a second communication cavity (54), a space (55) is reserved between the upper end of the partition plate (52) and the top surface of the liquid seal shell (51), the first communication cavity (53) and the second communication cavity (54) are communicated through the space (55), a first communication opening is formed in the first communication cavity (53), the first communication opening is communicated with the chamber (11), a second communication opening is formed in the second communication cavity (54), the second communication opening is communicated with the return air opening (21), and the first communication opening and the second communication opening are all located below the space (55).

4. A refrigeration assembly as set forth in claim 3 wherein: the upper end of the partition plate (52) is positioned at a level higher than the level at which the highest point of the freezing evaporator (3) is positioned.

5. A refrigeration assembly as set forth in claim 3 wherein: the refrigeration assembly further comprises a limiter (6), the limiter (6) is arranged in the second communication cavity (54), the horizontal plane of the limiter (6) is lower than the horizontal plane of the upper end of the partition plate (52), and the horizontal plane of the limiter (6) is higher than the horizontal plane of the highest point of the freezing evaporator (3).

6. A refrigeration assembly as set forth in claim 3 wherein: the first communication port is positioned at the lower half part of the first communication cavity (53), and the second communication port is positioned at the lower half part of the second communication cavity (54).

7. The refrigeration assembly of claim 1, wherein: the refrigerating assembly further comprises a refrigerating evaporator (7) and a water receiving disc (8), the refrigerating evaporator (7) is arranged in the box body (1), the water receiving disc (8) is located below the refrigerating evaporator (7), and the water receiving disc (8) forms the water supply structure.

8. The refrigeration assembly of claim 7, wherein: the refrigerating assembly further comprises a refrigerating water tank (9), the refrigerating water tank (9) is arranged in the box body (1), a water outlet of the water receiving disc (8) is communicated with the refrigerating water tank (9), and the refrigerating water tank (9) forms the water supply structure.

9. The refrigeration assembly of claim 8, wherein: the refrigerating assembly further comprises a drainage structure, the drainage structure is arranged in the defrosting water tank (2), and an outlet of the drainage structure is communicated with the refrigerating water tank (9).

10. The refrigeration assembly of claim 8, wherein: the refrigerating water tank (9) is positioned above the defrosting water tank (2), a communicating pipe is arranged between the refrigerating water tank (9) and the defrosting water tank (2), and an anti-freezing structure is arranged on the communicating pipe; and/or the communicating pipe is provided with an on-off mechanism.

11. The refrigeration assembly of claim 1, wherein: a hydrophobic layer is arranged on the freezing evaporator (3).

12. The refrigeration assembly of claim 1, wherein: the refrigeration assembly further comprises a refrigeration fan (10), the refrigeration fan (10) is arranged at the air outlet (22), and the refrigeration fan (10) can exhaust air to the refrigeration evaporator (3).

13. A refrigerator, characterized in that: comprising a refrigeration assembly according to any of claims 1 to 12.