A rapid refrigeration apparatus

Abstract

The application discloses a kind of quick refrigeration equipment, including cabinet, cabinet is provided with installation cavity and refrigeration liner, refrigeration liner is installed to installation cavity;Refrigeration liner includes first liner and second liner, first liner is provided with refrigeration cavity, refrigeration cavity is provided with quick cooling surface;Second liner cover is set to the outer periphery of first liner, and is spaced apart from the outer periphery wall of first liner to form refrigeration cavity;Refrigeration mechanism, refrigeration mechanism includes evaporator, evaporator includes heat exchange pipe, heat exchange pipe is located in refrigeration cavity, and is around the outer periphery wall of first liner;Heat exchange pipe at least part is inserted into refrigeration cavity and quick cooling surface is attached, and is used to cool object in heat exchange process.It is part of heat exchange pipe and surrounds the outer wall of liner, and preliminary cooling refrigeration is realized to beverage, food material in refrigeration cavity using heat conduction of liner wall;At least part of heat exchange pipe is inserted into refrigeration cavity simultaneously, so that beverage or food material can be directly contacted with the surface of heat exchange pipe for heat exchange, and the rapid cooling of material is realized.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and more particularly to a rapid refrigeration device. Background Technology

[0002] Currently, most existing refrigeration equipment used for cooling and preserving beverages such as beer and food uses air-cooled refrigeration technology. This technology relies on a fan to drive forced convection circulation of air inside the chamber. The air inside the chamber is first cooled by an evaporator, and then the low-temperature flowing air exchanges heat with the beverages and food through convection, indirectly removing heat from the materials and completing the cooling and preservation process.

[0003] However, this air-cooling solution is an indirect heat exchange method, using air as the intermediate heat exchange medium. The cooling capacity output by the evaporator must first be transferred to the air, and then transferred to the material to be cooled. Air has a low thermal conductivity. Under the condition of a fixed heat exchange area and temperature difference, the low thermal conductivity of the medium limits the amount of heat exchanged per unit time, resulting in large cooling capacity loss and low effective utilization of cooling capacity. Even with optimized compressor configuration and increased system cooling output power, it is difficult to overcome the physical limits of air as a medium for heat exchange, making it impossible to achieve rapid cooling of beverages and food. This significantly limits the applicable scenarios of the equipment and the user experience. Summary of the Invention

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a rapid cooling device in which a portion of the heat exchange tube is wrapped around the outer wall of the inner liner, and the beverages and food in the refrigeration chamber are initially cooled and refrigerated by heat conduction through the inner liner wall; at the same time, at least a portion of the heat exchange tube extends into the refrigeration chamber so that the beverages or food can directly contact the surface of the heat exchange tube for heat exchange, thereby achieving rapid cooling of the materials.

[0005] The technical solution adopted by this invention to solve its problem is: A rapid cooling device, comprising: The cabinet has an installation cavity and a refrigerator liner, the refrigerator liner being installed into the installation cavity; the refrigerator liner includes a first liner and a second liner, the first liner having a refrigerator cavity with a rapid cooling surface; the second liner is disposed around the outer periphery of the first liner and forms a refrigeration cavity with a gap between it and the outer periphery of the first liner. A refrigeration mechanism, comprising an evaporator, the evaporator comprising a heat exchange tube, the heat exchange tube being located in the refrigeration chamber and surrounding the outer peripheral wall of the first inner liner; the heat exchange tube extending at least partially into the refrigeration chamber and fitting against the rapid cooling surface, and being used to refrigerate objects during the heat exchange process.

[0006] As an optional implementation, the refrigeration cavity is provided with a first partition, which divides the refrigeration cavity into a direct cooling section and an air-cooling section, with the direct cooling section and the air-cooling section located on both sides of the refrigeration liner, respectively. The heat exchange tube includes a first tube section and a second tube section. The first tube section is located in the direct cooling cavity section and extends at least partially into the refrigeration cavity to be in contact with the rapid cooling surface. The second tube section is located in the air-cooling cavity section and extends circumferentially along the first inner liner and passes through the first partition to connect and communicate with the first tube section. The air-cooled cavity section is equipped with a guide fan, which is connected to the refrigeration cavity and is used to guide airflow into the refrigeration cavity.

[0007] As an optional implementation, the second pipe section is provided with a heat exchange structure, which is connected to the outside and used for heat exchange.

[0008] As an optional implementation, the cabinet is provided with a heat dissipation vent, which is connected to the air-cooled cavity section; the heat exchange structure is a heat exchange fin disposed on the second pipe section, and the heat exchange fin extends at least partially through the heat dissipation vent and out of the air-cooled cavity section.

[0009] As an optional implementation, the refrigerated inner liner is provided with a first flow guide port, and the refrigerated cavity is connected to the air-cooled cavity section through the first flow guide port; the flow guide fan is installed to the first flow guide port.

[0010] As an optional implementation, the refrigerated inner liner is provided with two through ports, and the heat exchange tube extends into the refrigerated cavity through at least one of the through ports and exits through the other through port on both sides of the symmetrical portion of the rapid cooling surface of the two through ports.

[0011] As an optional implementation, the rapid cooling surface is further provided with a limiting structure, which is used to limit the heat exchange tube.

[0012] As an optional implementation, the limiting structure includes a limiting retaining ring, which is connected to the end face of the rapid cooling surface and forms a limiting cavity, and the heat exchange tube is at least partially inserted into the limiting cavity.

[0013] As an optional implementation, the refrigeration mechanism includes a compressor, a condenser, and a throttling structure, wherein the compressor, the condenser, and the throttling structure are installed in the mounting cavity; the compressor is connected to one end of the condenser, the other end of the condenser is connected to the throttling structure, the throttling structure is connected to one end of the evaporator, and the other end of the evaporator is connected to the compressor.

[0014] As an optional implementation, the mounting cavity is provided with a second partition, which divides the mounting cavity into a first cavity section and a second cavity section. The first cavity section is used to install the refrigerator inner liner, and the second cavity section is used to install the compressor, condenser, and throttling structure. The second partition is provided with a second flow guide port, and the first cavity segment is connected to the second cavity segment through the second flow guide port.

[0015] In summary, the rapid cooling device provided by this invention has the following technical effects: The refrigerated inner liner of this equipment adopts a double-layer structure with a first inner liner and a second inner liner nested within each other. The first inner liner is provided with a refrigeration cavity for cooling materials, and a refrigeration cavity for installing the evaporator is formed between the outer walls of the first and second inner liners. By arranging heat exchange tubes around the outer peripheral wall of the first inner liner, with at least a portion of the heat exchange tubes extending into and contacting the rapid cooling surface inside the refrigeration cavity, materials placed inside the refrigeration cavity can directly contact the heat exchange tubes, achieving efficient direct heat exchange.

[0016] In this way, the heat exchange tubes on the outer periphery of the first inner liner transfer the cooling, and work together with the heat exchange tubes in the refrigeration chamber that are in contact with the material to directly cool, thereby improving the overall heat exchange efficiency and effectively achieving rapid cooling of the material. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded view of the structure of the present invention; Figure 3 This is a cross-sectional view of the structure of the present invention; Figure 4 This is a schematic diagram of the structure of the refrigerator inner liner of the present invention; Figure 5 This is a schematic diagram of the structure of the refrigerator inner liner of the present invention from another perspective; Figure 6 This is a cross-sectional view of the structure of the refrigerator inner liner of the present invention; Figure 7 This is a schematic diagram of the structure of the first inner liner of the present invention; Figure 8 This is a schematic diagram of the heat exchange tube of the present invention.

[0019] The meanings of the reference numerals in the attached figures are as follows: 10. Cabinet; 101. Mounting cavity; 101a. First cavity section; 101b. Second cavity section; 11. Second partition; 20. Refrigerated inner liner; 201. Refrigerated cavity; 202. Cooling cavity; 202a. Direct cooling cavity section; 202b. Air-cooled cavity section; 203. First air guide port; 204. Through port; 21. First inner liner; 211. Rapid cooling surface; 22. Second inner liner; 23. First partition; 24. Limiting structure; 241. Limiting retaining ring; 30. Refrigeration mechanism; 31. Evaporator; 311. Heat exchange tube; 311a. First tube section; 311b. Second tube section; 312. Heat exchange structure; 32. Compressor; 40. Air guide fan. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0024] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0025] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0026] See Figures 1 to 8 This invention discloses a rapid cooling device, comprising: a cabinet 10 and a cooling mechanism 30. The cabinet 10 is provided with an installation cavity 101 and a refrigerator inner liner 20, the refrigerator inner liner 20 being installed in the installation cavity 101. The refrigerator inner liner 20 includes a first inner liner 21 and a second inner liner 22. The first inner liner 21 is provided with a refrigerator cavity 201, the refrigerator cavity 201 being provided with a rapid cooling surface 211. The second inner liner 22 is covered on the outer periphery of the first inner liner 21 and forms a cooling cavity 202 with a gap between it and the outer periphery wall of the first inner liner 21. The cooling mechanism 30 includes an evaporator 31, the evaporator 31 including a heat exchange tube 311. The heat exchange tube 311 is disposed in the cooling cavity 202 and is wrapped around the outer periphery wall of the first inner liner 21. The heat exchange tube 311 extends at least partially into the refrigerator cavity 201 and is in contact with the rapid cooling surface 211, thereby enabling direct cooling of objects during the heat exchange process.

[0027] Based on the above structure, the rapid cooling surface 211 of the inner cooling wall of the refrigeration cavity 201, which facilitates direct contact with materials, will be specifically described. The refrigeration liner 20 adopts a double-layer structure with a first inner liner 21 and a second inner liner 22 nested together, forming an annular interlayer space between them. This interlayer space constitutes the aforementioned refrigeration cavity 202, providing a stable foundation for the installation of the heat exchange tubes 311. Compared to an open cavity structure, the narrow, sealed refrigeration cavity 202 can effectively concentrate the cooling energy generated by the heat exchange tubes 311, reducing outward diffusion losses and allowing the cooling energy to act more concentratedly and stably on the wall of the first inner liner 21. The cooling energy can be quickly conducted to the interior of the refrigeration cavity 201 through the shell of the first inner liner 21, achieving rapid cooling of the cavity environment and effectively improving the refrigeration efficiency of indirect heat exchange.

[0028] Specifically, the heat exchange tube 311 can be adapted to the external dimensions of the first inner liner 21, and is entirely wrapped around the outer peripheral wall of the first inner liner 21. At the same time, at least a portion of the heat exchange tube 311 extends into the refrigeration chamber 201 and is fixedly attached to the rapid cooling surface 211 of the refrigeration chamber 201. When the equipment is working, the low-temperature liquid refrigerant, compressed by the compressor 32, condensed and liquefied by the condenser, and then reduced in pressure by throttling, enters the interior of the heat exchange tube 311, and fully exchanges heat with the medium inside the refrigeration chamber 202 to continuously release cold energy. Among them, the heat exchange tube 311 wrapped around the outer peripheral wall of the first inner liner 21 transfers cold energy to the refrigeration chamber 201 through the heat conduction of the first inner liner 21 wall, achieving uniform and continuous indirect cooling and refrigeration of the materials in the chamber; while the heat exchange tube 311 extending into the refrigeration chamber 201 and attached to the rapid cooling surface 211 can directly contact the surface of beverages, food, and other materials, achieving direct heat exchange and refrigeration without the transfer of a medium.

[0029] In this way, users can flexibly place materials according to cooling needs: under normal refrigeration conditions, constant temperature preservation inside the cavity can be achieved by relying on the heat exchange tube 311 on the outer wall of the inner liner for conduction cooling; when rapid cooling is required, the materials only need to be placed against the heat exchange tube 311 of the rapid cooling surface 211, and the dual modes of indirect cooling through heat conduction on the outer wall and direct cooling in the cavity work together to make the materials easier to cool down quickly in a short time.

[0030] Compared to traditional single refrigeration modes, this application utilizes a dual-mode approach of indirect refrigeration via external wall heat conduction and direct refrigeration via internal cavity bonding. This reduces the problem of low heat exchange efficiency caused by the low thermal conductivity of air. It effectively improves the cooling rate and overall heat exchange efficiency without simply increasing the power of the compressor to 32. This achieves rapid cooling of materials while effectively reducing equipment energy consumption, thus meeting the needs of rapid cooling, uniform preservation, and energy saving.

[0031] It should be noted that the heat exchange tube 311 used in the evaporator 31 in this embodiment can be an existing coiled structure or a partially finned heat exchange tube 311 structure. During assembly, the heat exchange tube 311 is coiled and arranged around the outer peripheral wall of the first inner liner 21. The section of the tube extending into the refrigeration chamber 201 is designed as a smooth pipe to avoid the fins protruding and interfering with the placement of materials, while also facilitating full contact between the heat exchange tube 311 and beverages, food, and other materials. In addition, its heat exchange and refrigeration principle is existing technology and will not be described in detail here.

[0032] As an optional implementation, the refrigeration chamber 202 is provided with a first partition 23, which divides the refrigeration chamber 202 into a direct cooling section 202a and an air-cooled section 202b, which are located on both sides of the refrigeration inner liner 20. The heat exchange tube 311 includes a first tube section 311a and a second tube section 311b. The first tube section 311a is located in the direct cooling section 202a and extends at least partially into the refrigeration chamber 201 to be in contact with the rapid cooling surface 211. The second tube section 311b is located in the air-cooled section 202b and extends circumferentially along the first inner liner 21 and passes through the first partition 23 to connect and communicate with the first tube section 311a. The air-cooled section 202b is provided with a guide fan 40, which is connected to the refrigeration chamber 201 and is used to guide airflow into the refrigeration chamber 201.

[0033] Specifically, such as Figure 3 As shown, the first partition 23 divides the refrigeration chamber 202 into two independent sections: a direct-cooling section 202a and an air-cooling section 202b, preventing cross-flow of cold energy and interference between the two sections. After partitioning, the direct-cooling section 202a forms a relatively sealed static low-temperature space. A portion of the first pipe section 311a is coiled around the outer wall of the first inner liner 21, allowing the low-temperature cold energy to be conducted through the wall of the first inner liner 21 to the interior of the refrigeration chamber 201 within the narrow and sealed direct-cooling section 202a, thus achieving constant-temperature indirect refrigeration and preservation of the chamber environment and conventional materials. At the same time, another portion of the first pipe section 311a extends directly into the interior of the refrigeration chamber 201, allowing direct contact with the materials to be cooled, achieving rapid cooling of the materials in a short time through direct contact heat exchange. In addition, the sealed direct cooling cavity section 202a can reduce the leakage of cold energy, so that most of the cold energy is concentrated on the wall of the first inner liner 21 and the first pipe section 311a in the direct cooling cavity section 202a, reducing ineffective cold loss and facilitating rapid cooling of the equipment.

[0034] Correspondingly, the second pipe section 311b is entirely housed within an independent air-cooled cavity section 202b. By creating an airflow channel within the air-cooled cavity section 202b, and cooperating with the guide fan 40 within the air-cooled cavity section 202b, airflow circulation is promoted within the air-cooled cavity section 202b. This allows the air within the air-cooled cavity section 202b to fully and evenly pass over the surface of the second pipe section 311b, completing sufficient heat exchange. Simultaneously, the cooled air, after heat exchange, can be directionally transported into the refrigeration cavity 201 under the action of the guide fan 40. Forced airflow circulation ensures that the cold air within the refrigeration cavity 201 flows evenly to each zone, reducing the temperature difference within the refrigeration cavity 201 and effectively improving the overall temperature uniformity of the refrigeration cavity 201, thus addressing the problem of uneven temperature distribution within traditional direct-cooling equipment.

[0035] Meanwhile, since the air-cooling circulation is confined within the air-cooling cavity section 202b, the flowing low-temperature cold air is less likely to enter the direct-cooling cavity section 202a. This avoids additional cooling losses caused by the continuous blowing of high-speed airflow over the first pipe section 311a and the direct-cooling cavity wall, and also prevents the flowing airflow from disrupting the static low-temperature heat exchange environment of the direct-cooling cavity section 202a. This ensures that the static conduction heat exchange of direct cooling and the dynamic convection heat exchange of air cooling operate independently without interference, allowing each to function stably. Thus, the independent zoning structure enables the equipment to support multiple cooling modes for individual control and independent operation, resulting in greater equipment controllability.

[0036] Therefore, when using the refrigeration equipment of this embodiment, users can flexibly switch the working mode according to the actual usage scenario. When the direct cooling mode is activated alone, the guide fan 40 is turned off to eliminate the airflow blowing on the surface of the material, which can alleviate the problem of material drying and take into account both rapid material cooling and moisture retention. When the air cooling mode is activated, the guide fan 40 drives the cold air to fill the entire refrigeration chamber 201, achieving uniform cooling throughout the entire area. When high-intensity rapid cooling is required, the guide fan 40 can also be turned on to make direct cooling and air cooling work simultaneously, superimposing the cooling effect to further improve the cooling rate, while making the temperature inside the chamber uniform. Compared with the traditional single air cooling slow cooling rate, large cold loss, and uneven temperature distribution of single direct cooling, this improves the overall heat exchange efficiency and scenario adaptability of the whole machine.

[0037] More specifically, compared to existing composite refrigeration equipment that uses two independent evaporators 31 and dual-loop refrigeration, this embodiment uses only a single integrated heat exchange tube 311 to form a single refrigeration loop. Through the extension and partitioning of the piping, different sections of the same evaporator 31 correspond to the direct cooling section 202a and the air-cooled section 202b, respectively. Combined with the airflow circulation in the air-cooled section 202b, the composite refrigeration function can be achieved. This eliminates the need for complex piping components such as dual capillary tubes and multi-way solenoid valves, reducing the number of equipment parts, simplifying the piping layout of the refrigeration system, and effectively reducing the internal space occupied by the equipment. At the same time, the simplified piping structure reduces the difficulty of equipment assembly, decreases the probability of pipe leaks and component failures, and improves the long-term stability and service life of the equipment.

[0038] As an optional implementation, the second pipe section 311b is provided with a heat exchange structure 312, which is connected to the outside and used for heat exchange.

[0039] Specifically, during assembly, an airflow inlet can be opened on the second inner liner 22. After the second pipe section 311b is assembled, the heat exchange structure 312 on it can increase the overall heat exchange area of ​​the second pipe section 311b and can be connected to the external space of the equipment through the airflow inlet, so that the external ambient air can directly exchange heat with the heat exchange structure 312. During operation, the guide fan 40 inside the air-cooled cavity section 202b drives the external air to flow through the airflow inlet and pass over the surface of the heat exchange structure 312 to complete sufficient heat exchange. After absorbing the cooling capacity of the heat exchange structure 312, the air enters the air-cooled cavity section 202b and is then transported to the interior of the refrigeration cavity 201, thereby achieving air-cooled refrigeration. This reduces the amount of air retained inside the air-cooled cavity section 202b and reduces the cooling capacity loss caused by the heat storage of air in the cavity; at the same time, the external air continuously participates in the heat exchange, and the heat exchange medium can be continuously renewed, further improving the heat exchange efficiency of the heat exchange structure 312 of the second pipe section 311b.

[0040] It should be noted that, due to the spatial isolation constraint of the first partition 23, the heat exchange structure 312 connected to the outside only acts on one side of the air-cooled cavity section 202b. After the heat exchange is completed, the airflow only flows in the passage from the air-cooled cavity section 202b to the refrigeration cavity 201, and it is not easy to enter the direct cooling cavity section 202a. Therefore, it will not damage the static low temperature environment of the direct cooling cavity section 202a, and the direct cooling heat exchange condition can still operate stably.

[0041] Preferably, the heat exchange structure 312 in this embodiment can be fins disposed on the second pipe section 311b, or the outer surface of the second pipe section 311b can be machined into a threaded surface or a toothed surface to form the heat exchange structure 312, thereby increasing the heat exchange area of ​​the second pipe section 311b and further improving the heat exchange efficiency. This allows the device to achieve both direct cooling and air cooling modes simultaneously without the need for multiple independent evaporators 31, relying on a single heat exchange tube 311.

[0042] As an optional implementation, the cabinet 10 is provided with a heat dissipation vent, which is connected to the air-cooled cavity section 202b. The heat exchange structure 312 is a heat exchange fin disposed on the second pipe section 311b, and the heat exchange fin extends at least partially through the heat dissipation vent and out of the air-cooled cavity section 202b.

[0043] Specifically, such as Figure 3 or Figure 6 As shown, in this embodiment, the heat exchange structure 312 is composed of heat exchange fins installed on the second pipe section 311b. The heat exchange fins pass through the heat dissipation port on the cabinet 10 and extend outside the air-cooled cavity section 202b, so that the heat exchange fins are partially exposed. Compared with the traditional air-cooled heat exchange, which is a completely enclosed heat exchange form, the heat exchange fins can simultaneously take into account the heat exchange of the airflow inside the cavity and the heat exchange of the external ambient air, further widening the heat exchange contact range.

[0044] During operation, the guide fan 40 inside the air-cooled cavity section 202b drives the circulating airflow to continuously blow on the finned body located inside the air-cooled cavity section 202b, completing the heat exchange and cooling of the air inside the air-cooled cavity section 202b. At the same time, the heat exchange fins extending out of the heat dissipation vents can directly contact and fully exchange heat with the ambient temperature air outside the equipment, using the external airflow to continuously remove the cold air from the fins, achieving synchronous heat exchange between the internal and external media. Compared with the method of relying solely on the fixed amount of air circulating inside the cavity for heat exchange, this structure can continuously refresh the heat exchange medium, effectively avoiding the problems of temperature difference attenuation and insufficient heat exchange caused by repeated heat exchange of closed-loop air, and improving the overall heat exchange efficiency and heat exchange limit of the second pipe section 311b.

[0045] Meanwhile, the external finned heat exchange structure 312 can effectively reduce the heat storage load of the air-cooled cavity section 202b, reduce the ineffective cold loss caused by the heat storage of air in the cavity, achieve higher cold utilization rate, and make the cooling response of the air-cooled system faster, which helps to quickly achieve uniform temperature cooling inside the refrigeration cavity 201.

[0046] As an optional implementation, the refrigerator inner liner 20 is provided with a first guide port 203, and the refrigerator cavity 201 is connected to the air-cooled cavity section 202b through the first guide port 203; the guide fan 40 is installed to the first guide port 203.

[0047] Specifically, in this embodiment, by installing the guide fan 40 to the first guide port 203, during operation, the second pipe section 311b and the heat exchange structure 312 within the air-cooled cavity section 202b fully exchange heat and cool the air inside the cavity. Under the active traction of the guide fan 40, the low-temperature cold air inside the air-cooled cavity section 202b can be quickly and directionally introduced into the refrigeration cavity 201 through the first guide port 203. At the same time, the high-temperature return air inside the refrigeration cavity 201 can return to the air-cooled cavity section 202b through a preset gap or corresponding return channel, forming a continuous and stable closed-loop airflow. This allows the air inside the refrigeration cavity 201 to be constantly renewed and heat-exchanged, effectively eliminating local temperature differences within the cavity and further improving the overall temperature uniformity of the refrigeration cavity 201.

[0048] Compared to a distributed duct structure, directly installing the guide fan 40 to the first guide port 203 can effectively shorten the airflow delivery path, allowing the cold air in the air-cooled cavity section 202b to be concentrated and delivered to the air-cooled cavity section 202b, reducing the frictional resistance and cooling loss of the airflow during the duct transmission process.

[0049] As an optional implementation, the refrigerator liner 20 is provided with two through ports 204. The two through ports 204 are symmetrically located on both sides of the rapid cooling surface 211. The heat exchange tube 311 extends into the refrigerator cavity 201 through at least one of the through ports 204 and exits through the other through port 204.

[0050] During assembly, the first section 311a of the heat exchange tube 311 passes through the symmetrical through-ports 204 on both sides. The inner wall of the through-ports 204 radially limits the outer peripheral wall of the first section 311a, ensuring that the tube section within the refrigeration chamber 201 is fully fitted to the rapid cooling surface 211. This results in a larger contact area and better uniformity between the tube and the rapid cooling surface 211, effectively avoiding heat exchange dead zones caused by partial pipe suspension. Compared to randomly inserted and disordered pipe structures, the symmetrical pipe insertion method maximizes the utilization of the effective heat exchange area of ​​the rapid cooling surface 211, improving the contact effect between the heat exchange tube 311 section within the chamber and the inner wall and the material to be cooled, thus enhancing the uniformity and efficiency of direct contact heat exchange.

[0051] Meanwhile, the two symmetrical through-holes 204 ensure that the heat exchange tubes 311 enter and exit at corresponding positions, making the pipeline route smoother and more regular. This effectively reduces pipe bending and compression deformation, lowers the resistance to refrigerant flow, and ensures smooth circulation and stable flow of the internal low-temperature refrigerant.

[0052] As an optional implementation, the rapid cooling surface 211 is also provided with a limiting structure 24, which is used to limit the heat exchange tube 311.

[0053] Specifically, after the first section 311a of the heat exchange tube 311 is assembled via two through-ports 204, the limiting structure 24 can further position and constrain the heat exchange tube 311, preventing displacement, loosening, or even detachment from the rapid cooling surface 211 during equipment use. This ensures that the heat exchange tube 311 remains in close contact with the rapid cooling surface 211, maintaining a stable contact heat exchange state. This reduces problems caused by partial warping or suspension of the heat exchange tube 311, prevents a reduction in the contact area between the heat exchange tube 311 and the rapid cooling surface 211, and makes the output of cold energy conducted through the rapid cooling surface 211 more stable, further improving the heat exchange effect of contact-type rapid cooling.

[0054] It should be noted that the limiting structure 24 can be made of existing fasteners, pipe supports and other molded components. After the heat exchange tube 311 is attached to the rapid cooling surface 211, the limiting structure 24 can be fixed to the rapid cooling surface 211 by welding or gluing, so as to press and limit the heat exchange tube 311 to the surface of the rapid cooling surface 211 and realize the reliable positioning of the pipeline.

[0055] More specifically, in this embodiment, the limiting structure 24 includes a limiting ring 241, which connects to the end face of the rapid cooling surface 211 and forms a limiting cavity. The heat exchange tube 311 is at least partially inserted into the limiting cavity. During assembly, the heat exchange tube 311 can pass through one side of the through-port 204, then sequentially pass through the limiting cavity formed by the limiting ring 241, and finally extend through the other side of the through-port 204 to connect with other components. The inner walls of the limiting cavity and the through-port 204 provide multiple radial constraints on the heat exchange tube 311, limiting its displacement and movement within the refrigeration chamber 201. This further reduces the probability of the heat exchange tube 311 partially warping or becoming suspended.

[0056] It should be noted that the limiting ring 241 can be fixed to the end face of the rapid cooling surface 211 by welding, bonding or integral molding, which is convenient for assembly, and the inner diameter and shape of the limiting cavity can be set according to the outer diameter of the heat exchange tube 311.

[0057] As an optional implementation, the refrigeration mechanism 30 includes a compressor 32, a condenser, and a throttling structure. The compressor 32, the condenser, and the throttling structure are installed in the mounting cavity 101. The compressor 32 is connected to one end of the condenser, the other end of the condenser is connected to the throttling structure, the throttling structure is connected to one end of the evaporator 31, and the other end of the evaporator 31 is connected to the compressor 32.

[0058] When the equipment is working, the compressor 32 compresses the gaseous refrigerant to form a high-temperature, high-pressure refrigerant, which is then delivered to the condenser. Inside the condenser, the refrigerant dissipates heat and liquefies, then flows into a throttling structure (such as a throttling valve or capillary tube). After being throttled and depressurized, it transforms into a low-temperature, low-pressure two-phase gas-liquid refrigerant, which is then sent into the evaporator 31. In the evaporator 31, the low-temperature refrigerant absorbs heat and vaporizes, achieving refrigeration and heat exchange. The vaporized gaseous refrigerant then flows back to the compressor 32, completing one refrigeration cycle.

[0059] It should be noted that the compressor 32, condenser, and throttling structure can all adopt existing structures and can be uniformly arranged within the mounting cavity 101. This allows for centralized storage of the core refrigeration components, facilitating piping layout and overall assembly. Simultaneously, they are isolated from the refrigerator liner 20 and evaporator 31, isolating vibrations and heat generated during operation and reducing interference with the refrigeration environment of the refrigerator cavity 201, direct cooling section 202a, and air-cooled section 202b. The specific refrigeration principle achieved by the compressor 32, condenser, and throttling structure in conjunction with the evaporator is existing technology and will not be elaborated upon here.

[0060] As an optional implementation, the mounting cavity 101 is provided with a second partition 11, which divides the mounting cavity 101 into a first cavity section 101a and a second cavity section 101b. The first cavity section 101a is used to install the refrigerator inner liner 20, and the second cavity section 101b is used to install the compressor 32, the condenser, and the throttling structure. The second partition 11 is provided with a second guide port, through which the first cavity section 101a communicates with the second cavity section 101b.

[0061] Specifically, by dividing the installation cavity 101 into sections through the second partition 11, the refrigeration liner 20 can be physically separated from the heat-generating refrigeration components, preventing the heat generated by the compressor 32 and condenser from directly radiating to the refrigeration liner 20, reducing heat intrusion into the refrigeration cavity 201, reducing the heat load of the refrigeration system, and helping to reduce the energy consumption of the whole machine.

[0062] Meanwhile, the second guide port provides an airflow exchange path for the first cavity section 101a. External air can enter the first cavity section 101a through the second cavity section 101b and the second guide port, ensuring sufficient airflow supply to the air-cooled cavity section 202b connected to the first cavity section 101a. This ensures smooth airflow inside the air-cooled cavity section 202b and avoids problems such as insufficient airflow and reduced circulating air volume due to negative pressure in the air duct.

[0063] In addition, the compressor 32 generates a hot airflow at a certain temperature during operation, which can enter the first cavity 101a through the second guide port. When the equipment is stopped, in standby mode, or in a low-temperature environment, this residual heat can moderately heat the space of the first cavity 101a, alleviating the phenomenon of condensation on the outer wall of the refrigerated inner liner 20 and reducing condensation dripping from the outer wall of the inner liner.

[0064] It should be noted that the compressor 32 and the condenser mainly generate heat in the second cavity section 101b. Due to the obstruction of the second partition 11, most of the heat is confined in the second cavity section 101b. Only a small amount of residual heat enters the first cavity section 101a through the second guide port. This will not cause an abnormal increase in the internal temperature of the refrigerator cavity 201, thus interfering with the cooling effect of the refrigerator cavity 201.

[0065] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A rapid cooling device, characterized in that, include: The cabinet has an installation cavity and a refrigerator liner, the refrigerator liner being installed into the installation cavity; the refrigerator liner includes a first liner and a second liner, the first liner having a refrigerator cavity with a rapid cooling surface; the second liner is disposed around the outer periphery of the first liner and forms a refrigeration cavity with a gap between it and the outer periphery of the first liner. A refrigeration mechanism, comprising an evaporator, the evaporator comprising a heat exchange tube, the heat exchange tube being located in the refrigeration chamber and surrounding the outer peripheral wall of the first inner liner; the heat exchange tube extending at least partially into the refrigeration chamber and fitting against the rapid cooling surface, and being used to refrigerate objects during the heat exchange process.

2. The rapid cooling device as described in claim 1, characterized in that, The refrigeration chamber is provided with a first partition, which divides the refrigeration chamber into a direct cooling section and an air-cooling section. The direct cooling section and the air-cooling section are located on both sides of the refrigeration liner, respectively. The heat exchange tube includes a first tube section and a second tube section. The first tube section is located in the direct cooling cavity section and extends at least partially into the refrigeration cavity to be in contact with the rapid cooling surface. The second pipe section is located in the air-cooled cavity section, extends circumferentially along the first inner liner, passes through the first partition, and connects with the first pipe section. The air-cooled cavity section is equipped with a guide fan, which is connected to the refrigeration cavity and is used to guide airflow into the refrigeration cavity.

3. The rapid cooling device as described in claim 2, characterized in that, The second pipe section is equipped with a heat exchange structure, which is connected to the outside and is used for heat exchange.

4. The rapid cooling device as described in claim 3, characterized in that, The cabinet is provided with a heat dissipation vent, which is connected to the air-cooled cavity section. The heat exchange structure is a heat exchange fin disposed on the second pipe section, and the heat exchange fin extends out of the air-cooled cavity section through the heat dissipation vent at least partially.

5. The rapid cooling device as described in claim 2, characterized in that, The refrigerated inner liner is provided with a first flow guide port, and the refrigerated cavity is connected to the air-cooled cavity section through the first flow guide port; the flow guide fan is installed to the first flow guide port.

6. The rapid cooling device as described in claim 1, characterized in that, The refrigerated inner liner is provided with two through-ports. The heat exchange tube extends into the refrigerated cavity through at least one of the through-ports and exits through the other through-port.

7. The rapid cooling device as described in claim 6, characterized in that, The rapid cooling surface is also provided with a limiting structure, which is used to limit the heat exchange tube.

8. The rapid cooling device as described in claim 7, characterized in that, The limiting structure includes a limiting retaining ring, which is connected to the end face of the rapid cooling surface and forms a limiting cavity, and the heat exchange tube is at least partially inserted into the limiting cavity.

9. The rapid cooling device as described in claim 1, characterized in that, The refrigeration mechanism includes a compressor, a condenser, and a throttling structure. The compressor, the condenser, and the throttling structure are installed in the mounting cavity. The compressor is connected to one end of the condenser, the other end of the condenser is connected to the throttling structure, the throttling structure is connected to one end of the evaporator, and the other end of the evaporator is connected to the compressor.

10. The rapid cooling device as described in claim 9, characterized in that, The mounting cavity is provided with a second partition, which divides the mounting cavity into a first cavity section and a second cavity section. The first cavity section is used to install the refrigerator inner liner, and the second cavity section is used to install the compressor, condenser, and throttling structure. The second partition is provided with a second flow guide port, and the first cavity segment is connected to the second cavity segment through the second flow guide port.

Images