Fin evaporator for refrigerator and refrigerator

Abstract

The invention relates to the technical field of refrigerators, and discloses a fin evaporator for a refrigerator. The fin evaporator comprises a fin assembly filled with a supersaturated solution; and the vibration device is arranged on the fin assembly and is used for vibrating the supersaturated solution to crystallize so as to enable the supersaturated solution to release heat. Vibration of the vibration device enables the fin assembly to vibrate, the supersaturated solution in the fin assembly is crystallized and changed into a solid state from a liquid state, heat is released in the crystallization process, namely crystallization latent heat is generated, the crystallization latent heat is used for defrosting of the evaporator, the supersaturated solution makes direct contact with the fin assembly, the defrosting efficiency is improved, and the defrosting efficiency is higher than that of a traditional heating piece through heat radiation. The invention further discloses the refrigerator.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a fin evaporator for a refrigerator and a refrigerator. Background Art

[0002] At present, the evaporator of the refrigerator will frost during operation and needs to be defrosted every once in a while. Traditional defrosting devices all use electric heating tubes, which are installed at the bottom of the evaporator. The contact area between the heating tube and the fins of the evaporator is small, and the heat transfer efficiency is poor. The frost on the evaporator is mainly melted by the hot air generated by the heating tube. In addition, the existing matching mode of the evaporator and the defrosting heating tube has poor thermal stability, a large temperature difference between the top and bottom of the evaporator, low efficiency of the defrosting heating tube, long working time, and high product energy consumption.

[0003] The related art discloses a refrigerator, wherein the refrigerator includes an evaporator, which is in a flat cubic shape and is placed horizontally in a cooling chamber, and is configured to provide coldness to a storage space, wherein the evaporator includes an evaporator body and a heating element, and the evaporator body includes a plurality of fins arranged in parallel and a coil penetrating the fins; the heating element is integrally arranged at the upper and lower ends of the evaporator body to defrost the evaporator. The heating element is integrally arranged at the upper and lower ends of the evaporator body, and can directly heat the upper and lower ends of the evaporator body, thereby improving the defrosting efficiency and thus improving the working reliability of the evaporator.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The heating elements in the related technology are arranged at the upper and lower ends of the evaporator body, which can reduce the temperature difference between the upper and lower ends of the evaporator and reduce the energy consumption of the refrigerator. However, there is still a temperature difference between the inside and outside of the evaporator, the overall defrosting efficiency is still low, and the energy consumption of the refrigerator is high.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a fin evaporator for a refrigerator and a refrigerator, so as to improve the defrosting efficiency and reduce the energy consumption of the refrigerator.

[0009] According to a first aspect of an embodiment of the present invention, a fin evaporator for a refrigerator is provided, comprising: a fin assembly, in which a supersaturated solution is filled; and a vibration device, arranged on the fin assembly, for vibrating the supersaturated solution to crystallize, so that the supersaturated solution crystallizes and releases heat.

[0010] Optionally, the fin assembly includes: a first fin, a second fin, which is arranged opposite to the first fin; a defrost pipe, which is arranged between the first fin and the second fin, and the supersaturated solution is arranged in the defrost pipe.

[0011] Optionally, the defrost pipe is a serpentine pipe.

[0012] Optionally, the vibration device is arranged at the end of the defrost pipe.

[0013] Optionally, the fin evaporator for the refrigerator further includes: a shock absorbing device, which is coated on the outside of the defrost pipe.

[0014] Optionally, the fin assembly includes: a fin, the fin is a hollow structure, and the supersaturated solution is arranged in the hollow structure.

[0015] Optionally, the fin assembly further includes: a partition plate, which is disposed in the hollow structure and divides the hollow structure into a first cavity and a second cavity, wherein the first cavity and the second cavity are connected and are disposed in an up-and-down direction.

[0016] Optionally, the vibration device is arranged at the end of the fin.

[0017] Optionally, the fin evaporator for the refrigerator further includes: a heating element, which is arranged corresponding to the fin assembly and is used to heat the fin assembly.

[0018] According to a second aspect of an embodiment of the present invention, a refrigerator is provided, comprising the fin evaporator for a refrigerator as described in the above embodiment.

[0019] The fin evaporator for a refrigerator and the refrigerator provided in the embodiments of the present disclosure can achieve the following technical effects:

[0020] The vibration of the vibration device causes the fin assembly to vibrate, and the supersaturated solution inside crystallizes, changing from liquid to solid. The crystallization process releases heat, which is the latent heat of crystallization. The latent heat of crystallization is used for defrosting of the evaporator. The supersaturated solution is in direct contact with the fin assembly, which improves the defrosting efficiency. It is more efficient than defrosting by heat radiation of traditional heating elements, thereby improving the defrosting efficiency and reducing the energy consumption of the refrigerator.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1a is a structural schematic diagram of a fin assembly provided by an embodiment of the present disclosure;

[0024] Figure 1b yes Figure 1a A schematic diagram of the enlarged structure of the middle part A;

[0025] Figure 2 is a schematic diagram of the assembly structure of the second fin and the defrost pipe provided in an embodiment of the present disclosure;

[0026] Figure 3a is a structural schematic diagram of another fin assembly provided by an embodiment of the present disclosure;

[0027] Figure 3b yes Figure 3a The schematic cross-sectional structure diagram along the BB direction shown in FIG.

[0028] Figure 3c yes Figure 3b The enlarged structural diagram of the middle C part;

[0029] Figure 4 is a structural schematic diagram of another fin assembly provided in an embodiment of the present disclosure;

[0030] Figure 5a is a structural schematic diagram of another fin assembly provided by an embodiment of the present disclosure;

[0031] Figure 5b yes Figure 5a The cross-sectional structure schematic diagram along the DD direction shown in FIG.

[0032] Figure 6 It is a schematic structural diagram of a fin evaporator for a refrigerator provided in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 1: fin assembly; 11: first fin; 12: second fin; 13: defrost pipe; 131: pipe unit; 132: first side wall; 133: second side wall; 134: connecting wall;

[0035] 2: fin; 21: hollow structure; 211: first cavity wall; 212: second cavity wall; 213: third cavity wall; 214: fourth cavity wall; 22: partition; 23: first cavity; 24: second cavity;

[0036] 3: Supersaturated solution;

[0037] 4: Vibration device;

[0038] 5: shock absorbing device;

[0039] 6: Heating element;

[0040] 7: Pipeline. DETAILED DESCRIPTION

[0041] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0042] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0043] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0044] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] Unless otherwise stated, the term "plurality" means two or more.

[0046] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0047] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0049] As an important component of the refrigeration system in refrigerators and other refrigeration devices, the evaporator directly affects the refrigeration capacity and refrigeration speed of the refrigeration device. During long-term use, the evaporator will inevitably frost, which is mainly caused by low evaporation temperature and insufficient heat exchange of the evaporator.

[0050] The specific reasons are as follows: insufficient air supply, including blockage of the return air duct, blockage of the filter, blockage of the fin gap, failure of the fan to rotate or reduction of the speed, etc., resulting in insufficient heat exchange, reduced evaporation pressure, and reduced evaporation temperature; problems with the heat exchanger itself. After long-term use of the heat exchanger, the heat exchange performance decreases, which reduces the evaporation pressure; the external temperature is too low, and refrigeration in a low-temperature environment will cause insufficient heat exchange and low evaporation pressure; the expansion valve is blocked or the pulse motor system that controls the opening is damaged. In a long-term running system, some debris will block the expansion valve port and make it unable to work normally, reducing the refrigerant flow and reducing the evaporation pressure. Abnormal opening control will also cause a reduction in flow and pressure; secondary throttling, the evaporator There are bends in the pipe or blockages by debris inside, resulting in secondary throttling, which causes the pressure and temperature to drop in the part after the secondary throttling; poor system matching, to be more precise, the evaporator is too small or the compressor operating condition is too high. In this case, even if the evaporator performance is fully utilized, the suction pressure will be low and the evaporation temperature will drop due to the over-operating condition of the compressor; lack of refrigerant, low evaporation pressure and low evaporation temperature; too much refrigerant. Many people believe that too much refrigerant will increase the evaporation pressure and will not cause frost. However, when there is too much refrigerant, the excess refrigerant is basically in liquid form in the pipeline from the rear section of the condenser to the front of the expansion valve. At this time, the system circulation slows down, the liquid subcooling increases, the expansion valve opening decreases, and the evaporation temperature decreases.

[0051] At present, the evaporator of the refrigerator will frost during operation and needs to be defrosted every once in a while. Traditional defrosting devices all use electric heating tubes, which are installed at the bottom of the evaporator. The contact area between the heating tube and the fins of the evaporator is small, and the heat transfer efficiency is poor. The frost on the evaporator is mainly melted by the hot air generated by the heating tube. In addition, the existing matching mode of the evaporator and the defrosting heating tube has poor thermal stability, a large temperature difference between the top and bottom of the evaporator, low efficiency of the defrosting heating tube, long working time, and high product energy consumption.

[0052] The related art discloses a refrigerator, wherein the refrigerator includes an evaporator, which is in a flat cubic shape and is placed horizontally in a cooling chamber, and is configured to provide coldness to a storage space, wherein the evaporator includes an evaporator body and a heating element, and the evaporator body includes a plurality of fins arranged in parallel and a coil penetrating the fins; the heating element is integrally arranged at the upper and lower ends of the evaporator body to defrost the evaporator. The heating element is integrally arranged at the upper and lower ends of the evaporator body, and can directly heat the upper and lower ends of the evaporator body, thereby improving the defrosting efficiency and thus improving the working reliability of the evaporator.

[0053] The heating elements in the related technology are arranged at the upper and lower ends of the evaporator body, which can reduce the temperature difference between the upper and lower ends of the evaporator and reduce the energy consumption of the refrigerator. However, there is still a temperature difference between the inside and outside of the evaporator, the overall defrosting efficiency is still low, and the energy consumption of the refrigerator is high.

[0054] Combination Figure 1a-1b , Figure 2 , Figure 3a-3c , Figure 4 , Figure 5a-5b and Figure 6 As shown, an embodiment of the present disclosure provides a fin evaporator for a refrigerator, including a fin assembly 1 and a vibration device 4.

[0055] The refrigerator includes a compressor, a condenser and an evaporator which are connected by a pipeline 7. A refrigerant flows in the pipeline to realize refrigeration of the refrigerator.

[0056] The pipeline 7 passes through the fin assembly 1 along the thickness direction of the fin assembly 1 to achieve the matching between the pipeline 7 and the fin assembly 1 .

[0057] In some embodiments, the fin assembly 1 is provided with a mounting hole that penetrates the fin assembly 1 in the thickness direction, and the pipeline 7 passes through the mounting hole to achieve the assembly of the pipeline 7 and the fin assembly 1. Alternatively, there are multiple fin assemblies 1, and the multiple fin assemblies 1 are arranged in sequence along the length direction of the fin assembly 1, and a gap is formed between two adjacent fin assemblies 1, and the pipeline 7 does not pass through the fin assembly 1 but passes through the gap to achieve the assembly of the fin assembly 1 and the pipeline 7.

[0058] The fin assembly 1 is filled with a supersaturated solution 3; a vibration device 4 is arranged on the fin assembly 1, and is used to vibrate the supersaturated solution 3 so as to make the supersaturated solution 3 crystallize and release heat.

[0059] The vibration of the vibration device 4 causes the fin assembly 1 to vibrate, and the supersaturated solution 3 inside crystallizes and changes from liquid to solid. The crystallization process releases heat, that is, latent heat of crystallization. The latent heat of crystallization is used for defrosting of the evaporator. The supersaturated solution 3 is in direct contact with the fin assembly 1, which improves the defrosting efficiency. It is more efficient than the traditional heating element defrosting through heat radiation, thereby improving the defrosting efficiency and reducing the energy consumption of the refrigerator.

[0060] Alternatively, if Figure 1a and Figure 2 As shown, the fin assembly 1 includes a first fin 11, a second fin 12 and a defrost pipe 13, wherein the second fin 12 is arranged opposite to the first fin 11; the defrost pipe 13 is arranged between the first fin 11 and the second fin 12, and the supersaturated solution 3 is arranged in the defrost pipe 13.

[0061] The defrost pipe 13 filled with a supersaturated solution 3 is arranged between the first fin 11 and the second fin 12. Under the action of the vibration device 4, the supersaturated solution 3 inside the defrost pipe 13 will crystallize and release heat, which directly acts on the first fin 11 and the second fin 12, thereby improving the defrost efficiency.

[0062] Alternatively, if Figure 2 As shown, the defrost pipe 13 is in a curved shape, and includes a plurality of pipe units 131 , and the plurality of pipe units 131 are connected end to end in sequence.

[0063] Each of the pipe units 131 includes a first side wall 132 , a second side wall 133 , and a connecting wall 134 connected between one end of the first side wall 132 and one end of the second side wall 133 . Each of the pipe units 131 forms a U-shape or a U-shaped structure.

[0064] like Figure 2 As shown, the defrost pipe 13 is a serpentine pipe.

[0065] The defrost duct 13 is arranged in a serpentine shape between the first fin 11 and the second fin 12, which can expand the contact area between the defrost duct 13 and the first fin 11 and the second fin 12, thereby expanding the heat release area of ​​the defrost duct 13 during crystallization, so that when the defrost duct 13 is in effect, the defrosting effect is more uniform, and the frost on the first fin 11 and the second fin 12 will be melted more thoroughly.

[0066] Alternatively, if Figure 1b As shown, the vibration device 4 is arranged at the end of the defrost pipe 13, so that the arrangement of the vibration device 4 does not affect the cooperation between the fin assembly 1 and the pipeline 7, that is, does not affect the overall structure of the evaporator.

[0067] Optionally, the first fin 11 and the second fin 12 are both provided with mounting holes, and the pipeline 7 passes through the mounting holes and is arranged at two adjacent pipeline units 131, or is arranged between the first side wall 132 and the second side wall 133 to avoid interference between the pipeline 7 and the defrost pipeline 13.

[0068] The defrost pipe 13 fits with the first fin 11 and / or fits with the second fin 12. At this time, the mounting hole and the pipeline 7 are in clearance, so that when the fin assembly 1 vibrates, the pipeline 7 will not be driven to vibrate. Alternatively, the defrost pipe 13 and the first fin 11 are independent, and there is a gap between them, and the defrost pipe 13 and the second fin 12 are independent, and there is a gap between them. In this way, when the defrost pipe 13 vibrates, it will not affect the first fin 11 and the second fin 12.

[0069] The concentration of the supersaturated solution 3 is too high and the state is unstable. When vibration occurs, the solute of the supersaturated solution 3 will crystallize and become a relatively stable solid. The setting of the vibration device 4 at the end of the defrost pipe 13 can make the supersaturated solution 3 inside the defrost pipe 13 crystallize under the action of the vibration device 4, and release heat for defrosting the first fin 11 and the second fin 12.

[0070] The vibration device 4 is closed and connected to the end of the defrost pipe 13, and is used to seal the end of the defrost pipe 13 to prevent the supersaturated solution 3 from flowing out of the defrost pipe 13 in a liquid state, thereby ensuring the defrosting of the fin assembly 1 and the normal operation of the evaporator, and ensuring the normal operation of the refrigerator.

[0071] The vibration mode of the vibration device 4 is ultrasonic vibration. The refrigerator is provided with a controller, which is connected to the vibration device 4 and is used to control the opening and closing of the vibration device 4, and to adjust the heating rate of the defrost pipe 13 by controlling the ultrasonic frequency to control the defrost speed.

[0072] The number of vibration devices 4 is related to the size of the evaporator. When the size of the evaporator is large, the number of vibration devices 4 is two, which are respectively arranged at the two ends of the defrost pipe 13. When the size of the evaporator is small, the number of vibration devices 4 is one, which is arranged at one end of the defrost pipe 13.

[0073] When there are multiple vibration devices 4, the multiple vibration devices 4 may work simultaneously or not simultaneously. For example, the vibration device 4 corresponding to the severe frosting area of ​​the evaporator works, and the vibration device 4 far away from the severe frosting area does not work.

[0074] Alternatively, if Figure 3b and 3c As shown, the fin evaporator for the refrigerator further includes a shock absorbing device 5 , and the shock absorbing device 5 is coated on the outside of the defrosting pipe 13 .

[0075] The supersaturated solution 3 will crystallize when vibrating. A shock absorbing device 5 is provided to prevent the supersaturated solution 3 from crystallizing due to other low-frequency vibrations of the refrigerator during non-defrosting time. The outer side of the defrost pipe 13 is coated with the shock absorbing device 5 so that the defrost pipe 13 can filter out other low-frequency vibrations of the refrigerator, thereby ensuring normal operation during defrosting time.

[0076] The material of the shock absorbing device 5 can be shock absorbing materials such as ethylene / vinyl acetate copolymer foam, polyethylene foam, polyurethane foam, velvet paper, and composite pearl cotton.

[0077] Alternatively, if Figure 4 As shown in FIG. 5 , the fin assembly 1 includes a fin 2 , the fin 2 is a hollow structure 21 , and the supersaturated solution 3 is disposed in the hollow structure 21 .

[0078] The hollow structure 21 is filled with a supersaturated solution 3. Under the action of the vibration device 4, the supersaturated solution 3 inside the fin 2 will crystallize and release heat, which directly acts on the fin 2 to defrost the fin 2. The released heat directly acts on the fin 2, reducing heat consumption and waste and improving defrosting efficiency.

[0079] Alternatively, if Figure 5b As shown, the fin assembly 1 further includes a partition 22, which is disposed in the hollow structure 21 and divides the hollow structure 21 into a first cavity 23 and a second cavity 24, wherein the first cavity 23 and the second cavity 24 are connected and disposed in the up-down direction.

[0080] The supersaturated solution 3 can flow in the first cavity 23 and the second cavity 24. Due to the setting of the partition 22 in the hollow structure 21, when the supersaturated solution 3 crystallizes, the supersaturated solution 3 will not aggregate and crystallize under the action of gravity, thus avoiding the bulging and rupture of the fin 2 caused by the aggregation and crystallization. In addition, the partition 22 can play the role of a reinforcing rib, improving the performance of the fin 2 in terms of resistance to compression and deformation.

[0081] The number of the partitions 22 can be multiple, and the multiple partitions 22 are arranged oppositely from top to bottom. The cavity wall of the hollow structure 21 includes a first cavity wall 211, a second cavity wall 212, a third cavity wall 213 and a fourth cavity wall 214. The first cavity wall 211 and the second cavity wall 212 are arranged oppositely, the third cavity wall 213 is connected to the upper end of the first cavity wall 211 and the upper end of the second cavity wall 212, and the fourth cavity wall 214 is connected to the lower end of the first cavity wall 211 and the lower end of the second cavity wall 212.

[0082] The first cavity wall 211 and the second cavity wall 212 extend in the up-down direction, and the partition 22 extends in the direction of the third cavity wall 213 or the fourth cavity wall 214. One of the two adjacent partitions 22 abuts against the first cavity wall 211 and forms a flow gap between the second cavity wall 212, and the other partition 22 abuts against the second cavity wall 212 and forms a flow gap between the first cavity wall 211. The supersaturated solution 3 flows in the up-down direction in the hollow structure 21 through the flow gap.

[0083] Optionally, the vibration device 4 is arranged at the end of the fin 2 without affecting the coordination between the fin 2 and the pipeline 7 .

[0084] The concentration of the supersaturated solution 3 is too high and the state is unstable. When vibration occurs, the solute of the supersaturated solution 3 will crystallize and release heat, produce crystals, and become a relatively stable solid. The setting of the vibration device 4 at the end of the fin 2 can make the supersaturated solution 3 inside the fin 2 crystallize under the action of the vibration device 4, release heat, and be used for defrosting the fin 2 itself. The released heat directly acts on the fin 2, reducing heat consumption and waste, and improving defrosting efficiency.

[0085] The vibration mode of the vibration device 4 is ultrasonic vibration. The refrigerator is provided with a controller, which is connected to the vibration device 4 and is used to control the opening and closing of the vibration device 4, and to adjust the heating rate of the defrost pipe 13 by controlling the ultrasonic vibration frequency to control the defrost speed.

[0086] The frequency of ultrasonic vibration is related to the weight of supersaturated solution 3 in fin 2. When the weight of supersaturated solution 3 in fin 2 is large, the required frequency of ultrasonic vibration is high. When the weight of supersaturated solution 3 in fin 2 is small, the required frequency of ultrasonic vibration is low.

[0087] The ultrasonic vibration frequency is also related to the frosting condition of the evaporator. For example, the ultrasonic vibration frequency of the vibration device 4 corresponding to the severe frosting area of ​​the evaporator is higher, and the ultrasonic vibration frequency away from the severe frosting area is lower.

[0088] Alternatively, if Figure 6 As shown, the fin evaporator for the refrigerator further includes a heating element 6 , which is disposed corresponding to the fin assembly 1 and is used to heat the fin assembly 1 .

[0089] The supersaturated solution 3 becomes a crystal after crystallization, and when the temperature is raised again, the crystal will dissolve and become a supersaturated solution 3, and the supersaturated solution 3 can be repeatedly recycled. The setting of the heating element 6 can heat the defrost pipe 13 or the fin of the fin assembly 1, melt the crystal after the heat release, and make the crystal return to the state of the supersaturated solution 3 for the next defrosting use.

[0090] Whether the supersaturated solution 3 is completely regenerated is determined based on the heating time of the heating element 6 on the fin assembly 1 . After the regeneration process is completed, the crystals are transformed into the supersaturated solution 3 again.

[0091] When the heating element 6 heats the fin assembly 1, it can also perform secondary defrosting on the frost remaining on the evaporator, thereby ensuring the thoroughness of the defrosting.

[0092] Optionally, the heating element 6 is disposed below the fin assembly 1 and is in close contact with the fin assembly 1 or with a gap therebetween.

[0093] An embodiment of the present disclosure provides a refrigerator, comprising a fin evaporator for a refrigerator as described in the above embodiment.

[0094] The refrigerator provided by the embodiment of the second aspect of the present application includes the fin evaporator for a refrigerator described in any one of the embodiments of the first aspect, and thus has all the beneficial effects of the fin evaporator for a refrigerator described in any one of the embodiments of the first aspect, which will not be repeated here.

[0095] In summary, the present application provides a fin evaporator for a refrigerator, including a fin assembly 1 and a vibration device 4, wherein the fin assembly 1 is filled with a supersaturated solution 3; the vibration device 4 is arranged on the fin assembly 1, and is used to vibrate the supersaturated solution 3 to crystallize, so that the supersaturated solution 3 releases heat.

[0096] The fin assembly 1 includes a first fin 11 and a second fin 12, wherein the second fin 12 is arranged opposite to the first fin 11; a defrost pipe 13 is arranged between the first fin 11 and the second fin 12, and a supersaturated solution 3 is arranged in the defrost pipe 13. The defrost pipe 13 is a serpentine pipe. A vibration device 4 is arranged at the end of the defrost pipe 13. The fin evaporator for the refrigerator also includes a damping device 5, which is coated on the outside of the defrost pipe 13.

[0097] The fin assembly 1 includes a fin 2, which is a hollow structure 21, and a supersaturated solution 3 is disposed in the hollow structure 21. The fin assembly 1 also includes a partition 22, which is disposed in the hollow structure 21 and divides the hollow structure 21 into a first cavity 23 and a second cavity 24, and the first cavity 23 and the second cavity 24 are connected and disposed in the up-down direction. The vibration device 4 is disposed at the end of the fin 2.

[0098] The fin evaporator for the refrigerator further comprises a heating element 6 , which is arranged corresponding to the fin assembly 1 and is used for heating the fin assembly 1 .

[0099] The vibration of the vibration device 4 causes the defrost pipe 13 or the fin 2 in the fin assembly 1 to vibrate, and the supersaturated solution 3 inside the defrost pipe 13 or the fin 2 crystallizes and changes from liquid to solid. The crystallization process releases heat, that is, the latent heat of crystallization. The latent heat of crystallization is used for defrosting the evaporator. The supersaturated solution 3 is in direct contact with the defrost pipe 13 or the fin 2 of the fin assembly 1, which improves the defrosting efficiency. It is higher than the defrosting efficiency of the traditional heating element through heat radiation. After the defrosting is completed, the heating element 6 is used to heat the defrost pipe 13 or the fin 2, so that the crystals return to the state of the supersaturated solution 3, so that it can be recycled.

[0100] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A finned evaporator for a refrigerator, characterized in that: include: A fin assembly having a supersaturated solution inside; The vibration device is arranged on the fin assembly and is used for vibrating the supersaturated solution so as to make the supersaturated solution crystallize and release heat.

2. The finned evaporator for a refrigerator according to claim 1, characterized in that: The fin assembly includes: The first fin, a second fin, arranged opposite to the first fin; The defrost pipe is arranged between the first fin and the second fin, and the supersaturated solution is arranged in the defrost pipe.

3. The finned evaporator for a refrigerator according to claim 2, characterized in that: The defrost pipe is a serpentine pipe.

4. The finned evaporator for a refrigerator according to claim 2, characterized in that: The vibration device is arranged at the end of the defrosting pipeline.

5. The finned evaporator for a refrigerator according to claim 2, characterized in that: Also includes: The shock absorbing device is covered on the outside of the defrost pipe.

6. The finned evaporator for a refrigerator according to claim 1, characterized in that: The fin assembly includes: The fin is a hollow structure, and the supersaturated solution is arranged in the hollow structure.

7. The finned evaporator for a refrigerator according to claim 6, characterized in that: The fin assembly also includes: The partition is arranged in the hollow structure and divides the hollow structure into a first cavity and a second cavity. The first cavity and the second cavity are connected and arranged along the up-down direction.

8. The fin evaporator for a refrigerator according to claim 6, characterized in that: The vibration device is arranged at the end of the fin.

9. The finned evaporator for a refrigerator according to any one of claims 1 to 8, characterized in that: Also includes: The heating element is arranged corresponding to the fin assembly and is used for heating the fin assembly.

10. A refrigerator, characterized in that: The invention comprises a fin evaporator for a refrigerator as claimed in any one of claims 1 to 9.

Images