Heat pipe cold transfer refrigerator

Abstract

The utility model relates to the technical field of refrigeration, and discloses a heat pipe cold transfer refrigerator which comprises a shell, a freezing chamber and a refrigerating chamber are defined by the shell, and the heat pipe cold transfer refrigerator further comprises a compressor refrigerating system and a heat pipe cold transfer system, the compressor refrigerating system comprises a compressor, a condenser, a throttling element and an evaporator, and the evaporator is used for cooling the freezing chamber; the heat pipe cold transfer circulation pipeline comprises a heat pipe evaporation end and a heat pipe condensation end, the heat pipe condensation end is arranged on the evaporator and used for receiving the cold energy of the evaporator and transferring the cold energy to the heat pipe evaporation end, and the heat pipe evaporation end is arranged in the refrigeration chamber and used for cooling the refrigeration chamber; and a heat insulation section is arranged between the heat pipe evaporation end and the heat pipe condensation end of the heat pipe cold transfer circulation pipeline. According to the heat pipe cold transfer refrigerator provided by the embodiment of the invention, the cold storage chamber of the refrigerator is cooled by using the heat pipe cold transfer circulating pipeline, so that the problem of odor tainting between the cold storage chamber and the freezing chamber of the refrigerator is solved.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, for example, to a heat pipe cold transfer refrigerator. Background Art

[0002] At present, most common air-cooled refrigerators are single-system refrigeration refrigerators, that is, they use one evaporator, and the evaporator is set on one side of the freezer compartment to directly cool the freezer compartment. An air supply duct is set between the freezer compartment and the refrigerator compartment, and a damper is set in the duct to control the air supply volume of the refrigerator compartment through the damper, thereby achieving cooling and cooling of the refrigerator compartment.

[0003] For example, the air supply inlet of the cold storage room is provided with a cold storage air supply duct, which includes a cold storage damper, cold storage duct foam and a cold storage duct cover. When the cold storage room needs to be refrigerated, the cold storage damper is controlled to open, and cold air enters the cold storage room through the cold storage duct foam and the cold storage duct cover to cool the cold storage room; when the cold storage room does not need to be refrigerated, the cold storage damper is controlled to close, and cold air cannot enter the cold storage room.

[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 existing single-system air-cooled refrigerator is prone to odor contamination when cooling the refrigerated compartment.

[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. Utility Model Content

[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 disclosed embodiment provides a heat pipe cooling refrigerator, comprising a shell, wherein the shell encloses a freezing compartment and a refrigerating compartment, and further comprising: a compressor refrigeration system, comprising a compressor, a condenser, a throttling element and an evaporator, wherein the evaporator is used to cool the freezing compartment; and a heat pipe cooling circulation pipeline, comprising a heat pipe evaporation end and a heat pipe condensation end, wherein the heat pipe condensation end is arranged at the evaporator, and is used to receive the cold energy of the evaporator and transfer the cold energy to the heat pipe evaporation end, and the heat pipe evaporation end is arranged at the refrigerating compartment, and is used to cool the refrigerating compartment, wherein an insulating section is arranged between the heat pipe evaporation end and the heat pipe condensation end of the heat pipe cooling circulation pipeline.

[0009] The heat pipe cold transfer circulation pipeline is used to transfer the cold of the evaporator to the cold storage room, which realizes the refrigeration and cooling of the cold storage room and solves the problem of odor transfer between the freezing room and the cold storage room. At the same time, the insulation section can prevent the heat pipe from being affected by the external temperature during the cold transfer process, improve the efficiency of the heat pipe cold transfer circulation pipeline for cold transfer, and improve the temperature tightness between the freezing room and the cold storage room.

[0010] In some optional embodiments, a foam partition is provided between the freezing compartment and the refrigerating compartment, wherein the heat insulating section of the heat pipe cooling circulation pipeline passes through the foam partition.

[0011] In some optional embodiments, the evaporator includes a first heat exchange section, a second heat exchange section and a third heat exchange section that are connected and arranged adjacent to each other in sequence, a first cold transfer position is arranged between the first heat exchange section and the second heat exchange section, and a second cold transfer position is arranged between the second heat exchange section and the third heat exchange section, wherein the heat pipe condensation end of the heat pipe cold transfer circulation pipeline includes a first condensation section arranged at the first cold transfer position and a second condensation section arranged at the second cold transfer position.

[0012] In some optional embodiments, the first cooling position is U-shaped, and the first condensation section is a U-shaped heat pipe section extending into the first cooling position; the second cooling position is U-shaped, and the second condensation section is a U-shaped heat pipe section extending into the second cooling position.

[0013] In some optional embodiments, the heat pipe cooling circulation pipeline also includes a solenoid valve.

[0014] In some optional embodiments, the heat pipe cooling circulation pipeline also includes: a cooling pipe section, connected to the condensing end of the heat pipe and the evaporating end of the heat pipe, the working medium at the condensing end of the heat pipe receives the cold and transfers it to the evaporating end of the heat pipe through the cooling pipe section; and a reflux pipe section, connected to the evaporating end of the heat pipe and the condensing end of the heat pipe, the working medium at the evaporating end of the heat pipe flows back to the condensing end of the heat pipe through the reflux pipe section, wherein the insulating section of the heat pipe cooling circulation pipeline is arranged in the cooling pipe section, and / or the solenoid valve is arranged in the cooling pipe section.

[0015] In some optional embodiments, the heat pipe cooling circulation pipeline also includes a working fluid compensation chamber.

[0016] In some optional embodiments, the heat pipe cooling circulation pipeline also includes a capillary tube section.

[0017] In some optional embodiments, the capillary tube segment includes a first capillary tube segment arranged in the cooling tube segment and a second capillary tube segment arranged in the working fluid compensation chamber.

[0018] In some optional embodiments, the refrigerating compartment is arranged on the upper part of the freezing compartment; or, the refrigerating compartment is arranged on the side of the freezing compartment.

[0019] The heat pipe cooling refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The heat pipe cooling refrigerator provided by the embodiment of the present disclosure includes a compressor refrigeration system and a heat pipe cooling circulation pipeline. The compressor refrigeration system includes a compressor, a condenser, a throttling element and an evaporator, and the evaporator is used to directly cool the freezing compartment of the refrigerator. The heat pipe cooling circulation pipeline includes a heat pipe evaporation end and a heat pipe condensation end. Among them, the heat pipe condensation end is arranged close to the evaporator of the compressor refrigeration system, and can receive the cold energy of the evaporator and transfer it to the heat pipe evaporation end arranged in the refrigeration compartment, thereby realizing that the heat pipe evaporation end cools the refrigeration compartment.

[0021] It can be seen that the heat pipe cooling refrigerator provided in the embodiment of the present disclosure uses a heat pipe cooling circulation pipeline to transfer the cold energy of the evaporator to the refrigerating compartment, thereby achieving refrigeration and cooling of the refrigerating compartment and solving the problem of odor transfer between the freezing compartment and the refrigerating compartment.

[0022] At the same time, an insulating section is provided between the evaporation end and the cooling end of the heat pipe cooling circulation pipeline. The insulating section can prevent the heat pipe from being affected by the external temperature during the cooling transfer process, thereby improving the efficiency of the heat pipe cooling circulation pipeline in cooling transfer. The temperature tightness between the freezing compartment and the refrigerating compartment of the refrigerator is improved, thereby improving the accuracy of the temperature control of the freezing compartment and the refrigerating compartment.

[0023] 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

[0024] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Devices with the same reference numerals in the drawings are shown as similar devices, and the drawings do not constitute a scale limitation, and wherein:

[0025] Figure 1 is a schematic structural diagram of a heat pipe cooling refrigerator provided by an embodiment of the present disclosure;

[0026] Figure 2 yes Figure 1 A magnified view of a selected portion;

[0027] Figure 3 It is a structural schematic diagram of a heat pipe cooling circulation pipeline provided by an embodiment of the present disclosure;

[0028] Figure 4 is a structural schematic diagram of another heat pipe cooling circulation pipeline provided by an embodiment of the present disclosure;

[0029] Figure 5is a schematic structural diagram of another heat pipe cooling refrigerator provided by an embodiment of the present disclosure;

[0030] Figure 6 It is a schematic structural diagram of another heat pipe cooling refrigerator provided by an embodiment of the present disclosure.

[0031] Reference numerals:

[0032] 11: Freezer compartment; 12: Refrigerator compartment; 13: Foam partition;

[0033] 21: compressor; 22: condenser; 23: throttling element; 24: evaporator; 241: first heat exchange section; 242: second heat exchange section; 243: third heat exchange section;

[0034] 31: condensing end of heat pipe; 32: evaporating end of heat pipe; 33: cooling pipe section; 34: reflux pipe section;

[0035] 311: first condensation section; 312: second condensation section; 331: solenoid valve; 332: adiabatic section;

[0036] 41: first fan; 42: second fan. DETAILED DESCRIPTION

[0037] 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.

[0038] 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 to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0039] 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, components 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.

[0040] 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, components, 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 the specific circumstances.

[0041] Unless otherwise stated, the term "plurality" means two or more.

[0042] 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.

[0043] 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.

[0044] The existing air-cooled single-system refrigerator uses the coldness of the freezing compartment to cool the refrigerating compartment. This cooling method is prone to the problem of odor transfer between the freezing compartment and the refrigerating compartment, which affects the refrigerator's ability to preserve and store items in the refrigerating compartment.

[0045] The disclosed embodiment provides a heat pipe cooling refrigerator.

[0046] Optionally, the heat pipe cooling refrigerator includes a shell, which encloses a freezing compartment 11 and a refrigerating compartment 12. The heat pipe cooling refrigerator also includes a compressor 31 refrigeration system and a heat pipe cooling circulation pipeline. The compressor 31 refrigeration system includes a compressor 31, a condenser 22, a throttling element 23 and an evaporator 24, wherein the evaporator 24 is used to cool the freezing compartment 11. The heat pipe cooling circulation pipeline includes a heat pipe evaporation end 32 and a heat pipe condensation end 31, the heat pipe condensation end 31 is arranged at the evaporator 24, and is used to receive the cold energy of the evaporator 24 and transfer the cold energy to the heat pipe evaporation end 32, the heat pipe evaporation end 32 is arranged at the refrigerating compartment 12, and is used to cool the refrigerating compartment 12, wherein an insulating section 332 is arranged between the heat pipe evaporation end 32 and the heat pipe condensation end 31 of the heat pipe cooling circulation pipeline. Figure 1 and Figure 2 shown.

[0047] In the heat pipe cooling refrigerator provided by the embodiment of the present disclosure, the heat pipe cooling circulation pipeline includes a heat pipe evaporation end 32 and a heat pipe condensation end 31. The heat pipe condensation end 31 is close to or directly in contact with the evaporator 24 of the compressor 31 refrigeration system to receive the cold energy of the evaporator 24 and transfer the cold energy to the heat pipe evaporation end 32 located in the refrigerator's refrigeration compartment 12, thereby achieving cooling of the refrigerator's refrigeration compartment 12.

[0048] It can be seen that in the heat pipe cooling refrigerator provided in the embodiment of the present disclosure, a heat pipe cooling circulation pipeline is used to transfer the cold energy of the evaporator 24 to the refrigerating compartment 12, replacing the existing method of cooling the refrigerating compartment 12 through the refrigerating air duct, thereby solving the problem of odor transfer between the refrigerating compartment 12 and the freezing compartment 11.

[0049] At the same time, the freezer compartment 11 of the refrigerator is suitable for storing raw meat and other meat products, and the refrigeration compartment 12 is suitable for storing vegetables, fruits and other melons and fruits that need to be kept fresh. Meat products are prone to Listeria and the like. When the refrigeration air duct is used to cool the refrigeration compartment 12, Listeria can easily enter the refrigeration compartment 12 through the refrigeration air duct and attach to fresh fruits and vegetables, reducing the preservation effect of the refrigeration compartment 12 on melons and fruits. The heat pipe cooling refrigerator provided in the embodiment of the present disclosure prevents fungal substances such as Listeria from entering the refrigeration compartment 12, thereby improving the preservation effect of the refrigeration compartment 12 on fresh fruits and vegetables.

[0050] Optionally, the heat pipe cooling circulation pipeline is a closed circulation pipeline, which can be a loop heat pipe or a pulsating heat pipe.

[0051] The loop heat pipe is a highly efficient heat transfer device that can be used in various high-temperature, high-density, high-energy, and high-precision thermal management fields. It has the characteristics of simple structure, high efficiency, good reliability, large heat transfer distance, and anti-gravity operation. The heat pipe cooling circulation pipeline adopts a loop heat pipe, which can greatly improve the cooling efficiency.

[0052] Pulsating heat pipe is also a closed loop in structure. It can ensure that the fluid flows in one direction in the loop by setting at least one flow control valve. Pulsating heat pipe is composed of a series of serpentine-arranged and interconnected capillaries. It does not require a wick, has a simple structure and low cost. The driving force for the pulsation and annular flow of the working fluid in the pipe comes from the pulsating heat pipe itself, and no external driving equipment is required. Pulsating heat pipe has the advantages of efficient heat transfer, long life, safety and reliability.

[0053] The heat pipe condensation end 31 of the heat pipe cooling circulation pipeline is arranged at the evaporator 24, so that the heat pipe condensation end 31 can receive the cold of the evaporator 24. Optionally, the heat pipe condensation end 31 and the evaporator 24 can be arranged in such a way that the heat pipe condensation end 31 is arranged close to the evaporator 24, or the heat pipe condensation end 31 is arranged close to the evaporator 24, or the heat pipe condensation end 31 is arranged around the evaporator 24, so that the heat pipe condensation end 31 can receive the cold of the evaporator 24 by contact heat transfer.

[0054] Optionally, the heat pipe evaporation end 32 in the heat pipe cold transfer circulation pipeline is arranged in the refrigerated compartment 12, which can be understood as the heat pipe evaporation end 32 is arranged inside the refrigerated compartment 12 to directly dissipate the cold energy of the heat pipe evaporation end 32 into the refrigerated compartment 12, so as to directly cool the refrigerated compartment 12. Alternatively, the heat pipe evaporation end 32 is attached to the outside of the refrigerated compartment 12, and the cold energy is transferred to the inside of the refrigerated compartment 12 through the outer wall of the refrigerated compartment 12.

[0055] In the heat pipe cooling refrigerator provided by the embodiment of the present disclosure, the heat pipe cooling circulation pipeline is further provided with an insulating section 332, such as Figure 4 The setting of the insulation section 332 avoids the influence of the external environment of the heat pipe cooling circulation pipeline on the cold transfer, improves the cold transfer efficiency between the heat pipe condensation end 31 and the heat pipe evaporation end 32, and further improves the refrigeration efficiency of the heat pipe evaporation end 32 to the refrigerated compartment 12.

[0056] Optionally, a foam partition 13 is provided between the freezing compartment 11 and the refrigerating compartment 12 , wherein the heat insulating section 332 of the heat pipe cooling circulation pipeline passes through the foam partition 13 .

[0057] A foam partition 13 is provided between the freezing compartment 11 and the refrigerating compartment 12, and the heat insulating section 332 of the heat pipe cooling circulation pipeline is passed through the foam partition 13. The foam partition 13 of the refrigerator is used for heat insulation, which improves the temperature isolation effect between the freezing compartment 11 and the refrigerating compartment 12, and further improves the accuracy of the heat pipe cooling circulation pipeline in controlling the temperature of the refrigerating compartment 12. Optionally, the length of the heat insulating section 332 is greater than or equal to the thickness of the foam partition 13.

[0058] Optionally, the evaporator 24 includes a first heat exchange section 241, a second heat exchange section 242 and a third heat exchange section 243 which are connected and arranged adjacent to each other in sequence, a first cold transfer position is arranged between the first heat exchange section 241 and the second heat exchange section 242, and a second cold transfer position is arranged between the second heat exchange section 242 and the third heat exchange section 243, wherein the heat pipe condensation end 31 of the heat pipe cold transfer circulation pipeline includes a first condensation section 311 arranged at the first cold transfer position and a second condensation section 312 arranged at the second cold transfer position. Figure 2 shown.

[0059] The first heat exchange section 241, the second heat exchange section 242 and the third heat exchange section 243 of the evaporator 24 are arranged in sequence from top to bottom, the first condensation section 311 of the heat pipe condensation end 31 is arranged at the first cold transfer position between the first heat exchange section 241 and the second heat exchange section 242, and the second condensation section 312 of the heat pipe condensation end 31 is arranged at the second cold transfer position between the second heat exchange section 242 and the third heat exchange section 243. Optionally, the first cold transfer position and the second cold transfer position can be understood as two concave parts of the evaporator 24, and the first condensation section 311 and the second condensation section 312 are respectively arranged at the two concave parts, which increases the contact area between the heat pipe condensation end 31 and the evaporator 24, thereby improving the cold receiving effect of the heat pipe condensation end 31 on the evaporator 24.

[0060] Optionally, the evaporator 24 is a tube-fin evaporator 24 , and no fins are provided at the first cold transfer position and the second cold transfer position, so as to provide an avoidance for the provision of the first condensation section 311 and the second condensation section 312 .

[0061] Optionally, the number of heat exchange tubes in the first heat exchange section 241 , the second heat exchange section 242 and the third heat exchange section 243 of the evaporator 24 is the same, thereby improving the uniformity of the cold received by the first condensation section 311 and the second condensation section 312 .

[0062] Optionally, the first cooling position is U-shaped, and the first condensation section 311 is a U-shaped heat pipe section extending into the first cooling position. The second cooling position is U-shaped, and the second condensation section 312 is a U-shaped heat pipe section extending into the second cooling position.

[0063] Optionally, the opening direction of the U-shape formed at the first cold transfer position is the same as the opening direction of the U-shaped heat pipe section of the first condensation section 311, and the two form a sleeve structure.

[0064] like Figure 1 and Figure 2As shown, the opening direction of the U-shaped heat pipe formed by the first cold transfer position is the same as the opening direction of the U-shaped heat pipe of the first condensation section 311, and the two form a sleeve structure, so that the first condensation section 311 can be sleeved in the U-shaped heat pipe formed by the first cold transfer position in the form of an inner liner, thereby improving the cold transfer effect between the first cold transfer position and the first condensation section 311. Optionally, the first condensation section 311 is sleeved in the first cold transfer position. Optionally, the spacing between the first cold transfer position and the first condensation section 311 is less than or equal to the first spacing, so that the cold transfer effect between the first cold transfer position and the first condensation section 311 is further improved. Optionally, the length of the evaporator 24 is L1, and the depth of the U-shaped heat pipe formed by the first cold transfer position is L2. Optionally, L2 is less than L1, and greater than or equal to half of L1. It can be understood that the length of the evaporator 24 and the depth of the first cold transfer position are measured in the same direction.

[0065] The opening direction of the U-shape formed at the second cold transfer position is the same as the opening direction of the U-shaped heat pipe section of the second condensation section 312, and the two form a nested structure.

[0066] Similarly, the opening direction of the U-shaped heat pipe formed by the second cold transfer position is the same as the opening direction of the U-shaped heat pipe of the second condensation section 312, and the two form a sleeve structure, so that the second condensation section 312 is sleeved in the U-shaped heat pipe formed by the second cold transfer position in a similar manner to an inner liner, thereby improving the cold transfer effect between the second cold transfer position and the second condensation section 312. Optionally, the second condensation section 312 is sleeved in the second cold transfer position. Optionally, the spacing between the second cold transfer position and the second condensation section 312 is less than or equal to the first spacing, thereby further improving the cold transfer effect between the second cold transfer position and the second condensation section 312. Optionally, the length of the evaporator 24 is L1, and the depth of the U-shaped heat pipe formed by the second cold transfer position is L3. Optionally, L3 is less than L1, and is greater than or equal to half of L1. It can be understood that the length of the evaporator 24 and the depth of the second cold transfer position are measured in the same direction.

[0067] Optionally, the depth L2 of the U-shape formed at the first cold transfer position is equal to the depth L3 of the U-shape formed at the second cold transfer position. Similarly, the depth of the U-shaped heat pipe section of the first condensation section 311 is equal to the depth of the U-shaped heat pipe of the second condensation section 312.

[0068] Optionally, the heat pipe cooling circulation pipeline further includes a solenoid valve 331, such as Figure 3 shown.

[0069] The heat pipe cooling circulation line is also provided with a solenoid valve 331, which can determine whether the heat pipe cooling circulation line needs to be started according to the temperature of the refrigerating compartment 12. For example, when the temperature of the refrigerating compartment 12 is greater than the set temperature, the solenoid valve 331 on the heat pipe cooling circulation line is controlled to open to cool the refrigerating compartment 12. Optionally, when the freezer compartment 11 of the refrigerator is arranged above the refrigerating compartment 12, the solenoid valve 331 is arranged at one end of the heat pipe cooling circulation line located at the freezer compartment 11, such as Figure 1 Optionally, when the refrigerator compartment 12 is disposed above the freezer compartment 11, or when the refrigerator compartment 12 is disposed on the side of the freezer compartment 11, the solenoid valve 331 is disposed at one end of the heat pipe cooling circulation line located at the refrigerator compartment 12, as shown in FIG. Figure 5 and Figure 6 shown.

[0070] Optionally, the heat pipe cold transfer circulation pipeline further includes a cold transfer pipe section 33 and a return pipe section 34. The cold transfer pipe section 33 is connected to the heat pipe condensation end 31 and the heat pipe evaporation end 32, and the cold amount received by the working medium at the heat pipe condensation end 31 is transferred to the heat pipe evaporation end 32 through the cold transfer pipe section 33, and the return pipe section 34 is connected to the heat pipe evaporation end 32 and the heat pipe condensation end 31, and the working medium at the heat pipe evaporation end 32 flows back to the heat pipe condensation end 31 through the return pipe section 34.

[0071] The cold received by the heat pipe condensation end 31 is transferred to the heat pipe evaporation end 32 via the cold transfer pipe section 33. After the cold is released at the heat pipe evaporation end 32, the working fluid flows back to the heat pipe condensation end 31 via the return pipe section 34, thereby completing a cold transfer cycle. Optionally, the cold transfer pipe section 33 can also be called a liquid pipe section, and the return pipe section 34 can also be called a steam pipe section.

[0072] Optionally, the heat-insulating section 332 of the heat pipe cooling circulation pipeline is arranged in the cooling pipe section 33, such as Figure 2 As shown, in this way, the temperature insulation effect between the freezing compartment 11 and the refrigerating compartment 12 is improved. Optionally, the return pipe section 34 of the heat pipe cold transfer circulation pipeline can also be provided with an insulating section 332.

[0073] Optionally, the solenoid valve 331 is arranged in the cooling pipe section 33, such as Figure 1 As shown, the temperature in the refrigerating compartment 12 can be adjusted and controlled by opening or closing the electromagnetic valve 331. Optionally, the return pipe section 34 of the heat pipe cooling circulation pipeline can also be provided with an electromagnetic valve 331.

[0074] Optionally, the heat pipe cooling circulation pipeline also includes a working fluid compensation chamber.

[0075] The heat pipe cooling circulation pipeline is provided with a working medium compensation chamber, and when the solenoid valve 331 is closed, the working medium in the heat pipe cooling circulation pipeline can be temporarily stored in the working medium compensation chamber. Optionally, the working medium compensation chamber can be a liquid storage tank.

[0076] Optionally, the heat pipe cooling circulation pipeline also includes a capillary tube section.

[0077] like Figure 1 As shown, for a refrigerator with a freezing compartment 11 on the top and a refrigerating compartment 12 on the bottom, the working fluid in the heat pipe cooling circulation pipeline can flow back under the action of gravity, and the working fluid in the heat pipe cooling circulation pipeline has good circulation fluidity and can realize circulation flow independently to achieve the transfer of cold.

[0078] like Figure 5 and Figure 6 As shown, for a refrigerator with the refrigerating compartment 12 on the top and the freezing compartment 11 on the bottom, or for a refrigerator with the freezing compartment 11 and the refrigerating compartment 12 arranged on the left and right, the working fluid in the heat pipe cooling circulation pipeline cannot flow back under the action of gravity, which is not conducive to the circulation fluidity of the working fluid in the heat pipe cooling circulation pipeline. The provision of the capillary section improves the circulation fluidity of the working fluid in the heat pipe cooling circulation pipeline. Optionally, the capillary section of the liquid wick capillary structure is provided on one side of the heat pipe evaporation end 32 of the heat pipe cooling circulation pipeline. Optionally, the capillary section includes a first capillary section provided in the cooling pipe section 33 and a second capillary section provided in the working fluid compensation chamber. The remaining circuit elements of the heat pipe cooling circulation pipeline are all composed of smooth wall tubes. The smooth wall tubes can reduce the flow resistance of the working fluid flowing back to the heat pipe evaporation end 32, which is more convenient for long-distance heat transfer of the heat pipe.

[0079] For air-cooled refrigerators, when users encounter the following situations during use: the stored food evaporates moisture, the door is frequently opened and closed or forgotten to be closed, too much high-temperature and high-humidity food is put in at one time, and the door is opened and closed too many times to take out and put in food in the hot and humid summer, etc., the refrigerator will be operated for a long time in a high-temperature and high-humidity environment, resulting in a thicker ice layer on the surface of the refrigerator's evaporator 24, thereby increasing the heat exchange resistance on the surface of the evaporator 24 and the circulation resistance of the air on the surface of the evaporator 24. Usually, the refrigerator uses a heating pipe to defrost the evaporator 24. When the refrigerator uses a heating pipe to defrost the evaporator 24, the solenoid valve 331 of the heat pipe cold transfer circulation pipeline needs to be controlled to be closed to prevent heat from being transferred to the refrigerated compartment 12 and causing large temperature fluctuations.

[0080] Optionally, a first fan 41 is provided in the freezing compartment 11, and the first fan 41 can evenly blow the coldness of the evaporator 24 to each storage position of the freezing compartment 11, thereby improving the temperature uniformity of the freezing compartment 11. Similarly, a second fan 42 is provided in the refrigerating compartment 12, and the second fan 42 can evenly blow the coldness of the heat pipe evaporation end 32 of the heat pipe cold transfer circulation pipeline to each storage position of the refrigerating compartment 12, thereby improving the temperature uniformity of the refrigerating compartment 12. In this way, the freezing compartment 11 and the refrigerating compartment 12 are maintained at the optimal temperature suitable for food storage.

[0081] 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 heat pipe cooling refrigerator, characterized in that: The invention comprises a shell, wherein the shell encloses a freezing compartment and a refrigerating compartment, and further comprises: A compressor refrigeration system, comprising a compressor, a condenser, a throttling element and an evaporator, wherein the evaporator is used to cool the freezing compartment; and, The heat pipe cooling circulation pipeline includes a heat pipe evaporation end and a heat pipe condensation end. The heat pipe condensation end is arranged at the evaporator to receive the cold energy of the evaporator and transfer the cold energy to the heat pipe evaporation end. The heat pipe evaporation end is arranged in the refrigerated room to cool the refrigerated room. Wherein, an insulating section is arranged between the heat pipe evaporation end and the heat pipe condensation end of the heat pipe cooling circulation pipeline.

2. The heat pipe cooling refrigerator according to claim 1, characterized in that: A foam partition is provided between the freezing compartment and the refrigerating compartment. Among them, the insulation section of the heat pipe cooling circulation pipeline is passed through the foam partition.

3. The heat pipe cooling refrigerator according to claim 2, characterized in that: The evaporator comprises a first heat exchange section, a second heat exchange section and a third heat exchange section which are connected and arranged adjacent to each other in sequence, a first cold transfer position is arranged between the first heat exchange section and the second heat exchange section, and a second cold transfer position is arranged between the second heat exchange section and the third heat exchange section. The heat pipe condensing end of the heat pipe cooling circulation pipeline includes a first condensing section arranged at a first cooling position and a second condensing section arranged at a second cooling position.

4. The heat pipe cooling refrigerator according to claim 3, characterized in that: The first cooling position is U-shaped, and the first condensing section is a U-shaped heat pipe section extending into the first cooling position; The second cooling position is U-shaped, and the second condensing section is a U-shaped heat pipe section extending into the second cooling position.

5. The heat pipe cooling refrigerator according to claim 2, characterized in that: The heat pipe cooling circulation pipeline also includes a solenoid valve.

6. The heat pipe cooling refrigerator according to claim 5, characterized in that: The heat pipe cooling circulation pipeline also includes: The cold transfer pipe section is connected to the condensing end of the heat pipe and the evaporating end of the heat pipe, and the cold amount received by the working medium at the condensing end of the heat pipe is transferred to the evaporating end of the heat pipe through the cold transfer pipe section; and, The reflux pipe section is connected to the evaporation end of the heat pipe and the condensation end of the heat pipe. The working fluid at the evaporation end of the heat pipe flows back to the condensation end of the heat pipe through the reflux pipe section. Wherein, the heat-insulating section of the heat pipe cooling circulation pipeline is arranged in the cooling pipe section, and / or the solenoid valve is arranged in the cooling pipe section.

7. The heat pipe cooling refrigerator according to claim 6, characterized in that: The heat pipe cooling circulation pipeline also includes a working fluid compensation chamber.

8. The heat pipe cooling refrigerator according to claim 7, characterized in that: The heat pipe cooling circulation pipeline also includes a capillary section.

9. The heat pipe cooling refrigerator according to claim 8, characterized in that: The capillary tube section comprises a first capillary tube section arranged in the cooling tube section and a second capillary tube section arranged in the working medium compensation chamber.

10. The heat pipe cooling refrigerator according to claim 8, characterized in that: The refrigerating compartment is arranged above the freezing compartment; or, The refrigerating compartment is arranged at the side of the freezing compartment.

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