Refrigerating device

Abstract

The invention relates to the field of refrigerators, in particular to a freezing device which comprises a shell, a compressor, a condensation assembly, a throttling assembly, an evaporation assembly, a freezing container and a PCB assembly. The compressor, the condensation assembly, the throttling assembly, the evaporation assembly, the freezing container and the PCB assembly are all installed in the shell, the compressor, the condensation assembly, the throttling assembly and the evaporation assembly are sequentially connected through a refrigerant pipeline to form a refrigeration circulation loop, and an air duct structure is arranged between the freezing container and the evaporation assembly. Cold air generated by the evaporation assembly is transmitted to the freezing container through the air duct structure. The PCB assembly is connected with the compressor, the evaporation assembly and the condensation assembly so as to control the temperature of the freezing container. Compared with the prior art, through the collaborative design of the integrated directional air duct structure, the special freezing container and the intelligent temperature control system, the triple technical effects of efficient targeted transmission of cooling capacity, precise temperature control and equipment miniaturization are synchronously achieved in a compact volume.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a freezing device. Background Art

[0002] Currently, mainstream compression refrigeration equipment generally adopts an integrated closed cold cavity design, which achieves the freezing function of items by cooling the closed storage space through a built-in evaporator. Typical representatives include fixed or miniaturized refrigeration devices such as household refrigerators and commercial freezers.

[0003] This type of equipment relies on direct heat conduction between the evaporator and the inner wall of the cold chamber or natural convection of air to transfer cooling capacity. The refrigerant cycle is driven by the compressor and periodically started and stopped under the regulation of a mechanical thermostat to maintain the overall temperature inside the cold chamber within the set threshold range.

[0004] However, traditional equipment has difficulty breaking through the physical bottlenecks of low cold transfer efficiency and delayed temperature response, resulting in irreconcilable contradictions among freezing efficiency, space utilization and temperature accuracy, and is unable to simultaneously meet the complex needs of small portability, rapid cooling and precise temperature control. Summary of the Invention

[0005] The present application provides a refrigeration device to solve the technical problem that the existing technology cannot simultaneously meet the combined requirements of small portability, rapid cooling and precise temperature control.

[0006] The present application provides a refrigeration device, comprising: a housing, a compressor, a condensing assembly, a throttling assembly, an evaporating assembly, a freezing container, and a PCB assembly;

[0007] The compressor, condensing assembly, throttling assembly, evaporating assembly, freezing container and PCB assembly are all installed in the housing. The compressor, condensing assembly, throttling assembly and evaporating assembly are sequentially connected through a refrigerant pipeline to form a refrigeration cycle. An air duct structure is provided between the freezing container and the evaporating assembly. The cold air generated by the evaporating assembly is transferred to the freezing container through the air duct structure.

[0008] The PCB assembly is respectively connected to the compressor, the evaporation assembly and the condensation assembly to control the temperature of the freezing container.

[0009] Furthermore, the freezing container consists of a pot body, a pot core, a pot cover and a heat preservation structure. The pot core is detachably installed in the pot body, the heat preservation structure is installed between the pot body and the pot core, and the pot cover is movable and arranged on the top of the pot body.

[0010] Furthermore, an air guide cover is provided between the inner pot and the heat-insulating structure. The shape of the air guide cover matches the outer contour of the inner pot. A plurality of return air grilles are evenly arranged around the top opening of the air guide cover.

[0011] Furthermore, a receiving space is formed between the bottom of the air guide cover and the bottom of the pot body, and the evaporation component is installed in the receiving space.

[0012] Furthermore, the air duct structure includes an outer air duct and an inner air duct, the gap between the insulation structure and the air guide cover is the outer air duct, the gap between the air guide cover and the pot core is the inner air duct, and the outer air duct and the inner air duct are connected through the return air grille.

[0013] Furthermore, the evaporation component includes an evaporator, an evaporation fan and a first fan bracket, the evaporator is arranged on the insulation structure at the bottom of the outer shell, the first fan bracket is arranged on the top of the evaporator, the evaporation fan is installed on the first fan bracket, and the air outlet surface of the evaporation fan is arranged toward the bottom of the air guide cover.

[0014] Furthermore, a middle base is provided in the shell, and the middle base divides the shell into two parts, the compressor, the condensing assembly and the PCB assembly are placed on the left side, and the freezing container and the evaporating assembly are placed on the right side;

[0015] The middle base is an inverted L-shaped structure to separate the left side of the shell into upper and lower mounting cavities. The compressor is installed in the lower mounting cavity, and the condensing assembly and the PCB assembly are both installed in the upper mounting cavity.

[0016] Furthermore, the condensing assembly includes a condenser, a condensing fan and a second fan bracket, the two side walls of the outer shell are respectively provided with an air outlet grille and an air inlet grille, the PCB assembly is arranged close to the air inlet grille, the air outlet surface of the condensing fan is arranged toward the air outlet grille, the condensing fan is installed on the second fan bracket, and the second fan bracket is installed on the top of the condenser.

[0017] Furthermore, the throttling component is a capillary tube, and the capillary tube is designed as a coiled pipe.

[0018] Furthermore, a handle is provided on the top of the shell, and the handle is movably connected to the top of the shell.

[0019] The above technical solution provided by this application has the following advantages compared with the existing technology:

[0020] This application reconstructs the heat transfer path and control logic on the compression refrigeration infrastructure through the collaborative design of integrated directional air duct structure, special freezing container and intelligent temperature control system, and breaks through the mutually exclusive contradictions of low cold transfer efficiency, delayed temperature response and insufficient space utilization of traditional equipment. It achieves the triple technical effects of efficient targeted cold transfer, precise temperature control and equipment miniaturization in a compact volume, and completely solves the industry pain point of "inability to achieve efficiency, precision and portability" of small refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0024] Figure 1 A schematic structural diagram of a refrigeration device provided in an embodiment of the present application;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure without the outer shell;

[0026] Figure 3 for Figure 1 Exploded view of

[0027] Figure 4 for Figure 1 Exploded view of the freezing container;

[0028] Figure 5 for Figure 1 Schematic diagram of the structure with the top of the shell removed;

[0029] Figure 6 for Figure 1 Structural cross-sectional view;

[0030] Figure 7 A diagram showing the working principle of a refrigeration device provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1. Housing; 11. Center base; 12. Handle; 13. Outer cover; 14. Air outlet grille; 15. Air inlet grille;

[0033] 2. Compressor;

[0034] 3. Evaporation assembly; 31. Evaporator; 32. Evaporation fan; 33. First fan bracket;

[0035] 4. Freezer container; 41. Pot body; 42. Pot core; 43. Pot lid; 44. Insulation structure; 45. Air guide cover; 451. Return air grille; 46. Accommodation space;

[0036] 5. Air duct structure; 51. Inner air duct; 52. Outer air duct;

[0037] 6. Condensation assembly; 61. Condenser; 62. Condensation fan; 63. Second fan bracket;

[0038] 7. Throttle component;

[0039] 8. PCB assembly. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0042] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0043] In order to solve the technical problem that the existing technology cannot simultaneously meet the complex requirements of small portability, rapid cooling and precise temperature control, the present application provides a refrigeration device. Through the collaborative design of integrated directional air duct structure, special refrigeration container and intelligent temperature control system, the heat transfer path and control logic are reconstructed on the compression refrigeration infrastructure, which has made a breakthrough in resolving the mutually exclusive contradictions of low cold transfer, delayed temperature response and insufficient space utilization of traditional equipment, and achieved the triple technical effects of efficient targeted cold transfer, precise temperature control and equipment miniaturization in a compact volume, which completely solved the industry pain point of "efficiency, precision and portability cannot be achieved at the same time" of small refrigeration equipment.

[0044] See also Figures 1 to 7 A refrigeration device provided in an embodiment of the present application includes: a shell 1, a compressor 2, a condensing component 6, a throttling component 7, an evaporating component 3, a freezing container 4 and a PCB component 8; the compressor 2, the condensing component 6, the throttling component 7, the evaporating component 3, the freezing container 4 and the PCB component 8 are all installed in the shell 1, the compressor 2, the condensing component 6, the throttling component 7 and the evaporating component 3 are connected in sequence through a refrigerant pipeline to form a refrigeration cycle loop, a duct structure 5 is provided between the freezing container 4 and the evaporating component 3, and the cold air generated by the evaporating component 3 is transferred to the freezing container 4 through the duct structure 5; the PCB component 8 is respectively connected to the compressor 2, the evaporating component 3 and the condensing component 6 to control the temperature of the freezing container 4.

[0045] Specifically, the outer shell 1 serves as a closed box structure, with a compressor 2, a condensing component 6, a throttling component 7, an evaporating component 3, a freezing container 4 and a PCB component 8 fixed inside, wherein the outlet of the compressor 2 is connected to the inlet of the condensing component 6, the outlet of the condensing component 6 is connected to the inlet of the throttling component 7, the outlet of the throttling component 7 is connected to the inlet of the evaporating component 3, and the outlet of the evaporating component 3 returns to the inlet of the compressor 2, forming a closed-loop refrigerant passage. The air outlet of the evaporating component 3 is directly connected to the bottom or side wall of the freezing container 4 through a sealed air duct, and the cold air is directionally delivered to the cavity of the freezing container 4. The electrical interface of the PCB component 8 is respectively connected to the compressor 2 (start and stop control), the evaporating component 3 (fan speed regulation), and the condensing component 6 (fan start and stop), and the temperature sensor is embedded in the inner wall of the freezing container 4 to feed back temperature data to the PCB in real time. Through the above method, the air duct structure 5 in the device can isolate external thermal interference, and the cold air reaches the freezing container 4 directly with zero loss, significantly improving the cooling rate (traditional direct cooling requires natural air convection); and all functional modules are completely built into a single shell 1, which can avoid the risk of collision with external pipes / equipment, and is especially suitable for mobile scenarios (such as in-vehicle, outdoors).

[0046] Furthermore, the PCB component 8 is composed of a main control unit, a temperature acquisition module, a power drive module, a communication interface module, a power drive module, a power management module and a safety protection module, wherein the main control unit is used to parse temperature data in real time to dynamically adjust the compressor 2 / fan power; the temperature acquisition module monitors the wall temperature of the freezing container 4 one way and the return air temperature one way; the power drive module is used for variable frequency drive of the compressor 2 and stepless speed regulation of the evaporation / condensation fan 62; the communication interface module supports APP remote setting of temperature mode (ice making / ice cream / refrigeration) and firmware upgrade; the power management module is used to maintain the control voltage stable when the power consumption of the whole machine fluctuates; the safety protection module is used to monitor the overheating / overcurrent caused by compressor 2 stalling and refrigerant leakage in real time, and trigger hardware-level power-off protection.

[0047] like Figure 3-4 As shown in Figure 6, the freezing container 4 consists of a pot body 41, a pot core 42, a pot cover 43 and an insulation structure 44. The pot core 42 can be detachably installed in the pot body 41, the insulation structure 44 is installed between the pot body 41 and the pot core 42, and the pot cover 43 is a movable cover arranged on the top of the pot body 41.

[0048] Specifically, the freezing container 4 is a layered structure, wherein the pot body 41 serves as the outer load-bearing frame, with an open top and a reserved mounting slot at the bottom or side wall. The pot 42 is made of food-grade metal, with the bottom of the pot directly placed in the mounting slot of the pot body 41, maintaining contact by its own weight. The pot 42 can be freely taken in and out without a physical locking structure. The heat-insulating structure 44 is a heat-insulating cotton filling in the annular interlayer between the pot body 41 and the pot 42, isolating the heat exchange between the inside and the outside. The pot lid 43 is a hinged or sliding movable cover with a silicone strip embedded in the sealing edge. When closed, it presses against the top opening of the pot body 41. At the same time, an outer cover 13 is also provided on the top of the pot lid 43. The plane of the outer cover 13 is flush with the top of the outer shell 1, so as to ensure the beauty of the device while further improving the stability of the device.

[0049] It is understandable that the pot inner 42 in this embodiment is made of stainless steel, and can be made of aluminum alloy, cast iron, ceramics and other materials. It is specifically configured according to actual conditions and is not limited here.

[0050] like Figure 2-3 As shown, an air guide cover 45 is provided between the inner pot 42 and the heat-insulating structure 44 . The shape of the air guide cover 45 matches the outer contour of the inner pot 42 . A plurality of return air grilles 451 are evenly arranged around the top opening of the air guide cover 45 .

[0051] Specifically, the inner curved surface of the air deflector 45 perfectly matches the outer contour of the inner pot 42, with a gap between them to form a uniform annular air duct. The top edge of the opening of the air deflector 45 is equipped with evenly spaced grille holes to guide airflow through the air duct structure 5. The bottom of the air deflector 45 is fixed to the bracket of the pot body 41 with a clip, and the top grille surface is flush with the upper edge of the inner pot 42. The 1 hole of the return air grille 45 evenly distributes the rising air flow, eliminating pressure fluctuations caused by local vortices, ensuring stable cold air delivery, and avoiding cooling only the structure of the inner pot 42.

[0052] like Figure 6 As shown, an accommodating space 46 is formed between the bottom of the air guide cover 45 and the bottom of the pot body 41 , and the evaporation component 3 is installed in the accommodating space 46 .

[0053] Specifically, the bottom of the air deflector 45 is suspended and fixed to the internal bracket of the pot body 41. Its lowest point is vertically spaced from the bottom surface of the pot body 41, forming a closed cubic / cylindrical receiving space 46. The evaporation assembly 3 is vertically mounted within this receiving space 46 via bolts or slots. This receiving space 46 acts as an independent cavity, isolating the evaporation assembly 3 from vibration transmission. The evaporation assembly 3, through the air duct structure 5, forces cold air from top to bottom around the pot body 42, precisely matching the freezing temperature requirements of the food.

[0054] like Figure 2 and Figure 5As shown, the air duct structure 5 includes an outer air duct 52 and an inner air duct 51. The gap between the insulation structure 44 and the air deflector 45 is the outer air duct 52, and the gap between the air deflector 45 and the pot core 42 is the inner air duct 51. The outer air duct 52 and the inner air duct 51 are connected through the return air grille 451.

[0055] Specifically, the inner wall of the insulation structure 44 and the outer wall of the air guide hood 45 maintain an annular gap, which serves as a buffer zone for isolating heat from cold, namely the outer air duct 52; the inner wall of the air guide hood 45 and the outer wall of the pot 42 form an annular gap, which directly wraps the pot 42 for heat exchange, namely the inner air duct 51, and the distance and width of the two annular gaps are equal. A vertical through-hole is provided on the return air grille 451, connecting the corresponding areas of the outer air duct 52 and the inner air duct 51; the axis of the through-hole is toward the top of the pot 42, guiding the air flow from the outer air duct 52 to the inner air duct 51; the cold air generated by the evaporation component 3 flows from bottom to top through the outer air duct 52, and then flows from top to bottom through the return air grille 451, thereby achieving a cooling effect on the pot 42. The outer air duct 52 acts as a static thermal insulation buffer zone, blocking the external heat of the insulation layer (such as heat dissipation of the compressor 2) from penetrating into the inner air duct 51, ensuring that the temperature fluctuation of the inner air duct 51 remains within a certain range.

[0056] like Figure 2-3 As shown, the evaporation component 3 includes an evaporator 31, an evaporation fan 32 and a first fan bracket 33. The evaporator 31 is arranged on the insulation structure 44 at the bottom of the shell 1, the first fan bracket 33 is arranged on the top of the evaporator 31, the evaporation fan 32 is installed on the first fan bracket 33, and the air outlet surface of the evaporation fan 32 is arranged toward the bottom of the air guide cover 45.

[0057] Specifically, the evaporator 31 is fixed tightly against the upper surface of the insulation structure 44 at the bottom of the outer casing 1, and the insulation layer is used to isolate the influence of external heat on the low temperature of the evaporator 31. The first fan bracket 33 is vertically fixed directly above the evaporator 31 through a column or a cantilever beam, and the bracket hollowing rate is ≥60% to ensure airflow penetration. The evaporating fan 32 is installed upside down at the center of the fan bracket, with the air outlet surface (the front of the impeller) facing vertically toward the air inlet at the bottom of the air guide hood 45, and the airflow direction is parallel to the axis of the air guide hood 45. This structural design allows the airflow from the evaporating fan 32 to be directly sprayed into the bottom of the air guide hood 45, without any resistance from the wind duct bending, thereby improving the efficiency of cold air delivery.

[0058] like Figure 2 As shown, a middle base 11 is further provided in the shell 1, which divides the shell 1 into two parts, left and right. The compressor 2, condensing assembly 6 and PCB assembly 8 are placed on the left side, and the freezing container 4 and evaporating assembly 3 are placed on the right side; the middle base 11 is an inverted L-shaped structure, which divides the left side of the shell 1 into upper and lower installation cavities, the compressor 2 is installed in the lower installation cavity, and the condensing assembly 6 and PCB assembly 8 are both installed in the upper installation cavity.

[0059] Specifically, the vertical plate of the middle base 11 is fixed to the center line of the outer shell 1, and the left cavity accommodates the compressor 2, the condensing assembly 6, and the PCB assembly 8; the right cavity independently accommodates the freezing container 4 and the evaporating assembly 3, completely isolating the interference between cold and heat. The horizontal plate of the middle base 11 is cantilevered in the middle of the left cavity to form a lower mounting cavity (fixing the compressor 2) and an upper mounting cavity (carrying the condensing assembly 6 and the PCB assembly 8); the air outlet of the condensing assembly 6 and the heat dissipation surface of the PCB assembly 8 are staggered to avoid airflow interference. The heat of the compressor 2 sinks and is discharged, and the heat of the condenser 61 dissipates upward to form a chimney effect, which improves the heat dissipation efficiency and reduces the power consumption of the condenser 61 fan.

[0060] like Figure 3 and Figure 5 As shown, the condensing assembly 6 includes a condenser 61, a condensing fan 62 and a second fan bracket 63. The two side walls of the outer shell 1 are respectively provided with an air outlet grille 14 and an air inlet grille 15. The PCB assembly 8 is arranged close to the air inlet grille 15. The air outlet surface of the condensing fan 62 is arranged toward the air outlet grille 14. The condensing fan 62 is installed on the second fan bracket 63, and the second fan bracket 63 is installed on the top of the condenser 61.

[0061] Specifically, condenser 61 is mounted horizontally against the inner sidewall of housing 1, with its heat dissipation fins facing the air outlet grille 14. A second fan bracket 63 is secured to the top center of condenser 61 via a column. The bracket's hollowing ratio is ≥60% to ensure airflow penetration. Condenser fan 62 is mounted upside down at the center of the bracket, with the outlet surface (front face of the impeller) vertically aligned with the air outlet grille 14, forcing airflow out of housing 1 in a straight line. The heat dissipation airflow from condenser 61 passes unidirectionally through the air outlet grille 14, preventing hot air from backflowing and heating the air inlet grille 15 area. PCB assembly 8 is mounted on the inner side of the air inlet grille 15, directly contacting the incoming cold airflow for heat dissipation, thereby improving the heat dissipation efficiency of PCB assembly 8.

[0062] like Figure 7 As shown, the throttling component 7 is a capillary tube, which is designed as a coiled pipe.

[0063] Specifically, the capillary tube is coiled in a spiral or serpentine path, forming a compact cylindrical or flat ring shape, with the coils spaced equidistantly. Straight sections at each end of the capillary tube connect the outlet of the condenser 61 and the inlet of the evaporator 31, respectively. The coiled sections are secured to the equipment support frame with clips or cable ties to prevent vibration and friction. This coiled path extends the refrigerant flow distance, significantly reducing the pressure of the high-pressure liquid refrigerant and ensuring an optimal gas-liquid mixing ratio at the inlet of the evaporator 31.

[0064] like Figure 1-4 As shown, a handle 12 is further provided on the top of the housing 1 , and the handle 12 is movably connected to the top of the housing 1 .

[0065] Specifically, the connection modes of the handle 12 in this embodiment include the following:

[0066] Hinge folding type: The two ends of the handle 12 are fixed to the two sides of the top of the shell 1 through a rotating shaft hinge, and can be freely flipped 0-180 degrees in the horizontal direction. It can be unfolded when carried and flat against the top surface of the shell 1 when stored;

[0067] Retractable slide rail: The handle 12 is nested in the groove slide rail at the top of the housing 1. It is automatically locked when stretched horizontally to the use length and retracts and hides after being pressed to unlock.

[0068] Quick-release plug-in type: insert the plug rod of the handle 12 into the socket on the top of the shell 1, rotate 90 degrees to mechanically lock it, and reverse the operation to detach it for carrying.

[0069] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0070] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0072] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0073] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0074] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0075] Obviously, those skilled in the art may make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, as long as these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

[0076] The above description is a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A refrigeration device, characterized in that: include: Housing, compressor, condensing assembly, throttling assembly, evaporating assembly, freezing container and PCB assembly; The compressor, condensing assembly, throttling assembly, evaporating assembly, freezing container and PCB assembly are all installed in the housing. The compressor, condensing assembly, throttling assembly and evaporating assembly are sequentially connected through a refrigerant pipeline to form a refrigeration cycle. An air duct structure is provided between the freezing container and the evaporating assembly. The cold air generated by the evaporating assembly is transferred to the freezing container through the air duct structure. The PCB assembly is respectively connected to the compressor, the evaporation assembly and the condensation assembly to control the temperature of the freezing container.

2. The refrigeration device according to claim 1, characterized in that The freezing container consists of a pot body, a pot inner core, a pot cover and a heat preservation structure. The pot inner core is detachably installed in the pot body, the heat preservation structure is installed between the pot body and the pot inner core, and the pot cover is movable on the top of the pot body.

3. The refrigeration device according to claim 2, characterized in that An air guide cover is further provided between the inner pot and the heat-insulating structure. The shape of the air guide cover matches the outer contour of the inner pot. A plurality of return air grilles are evenly arranged around the top opening of the air guide cover.

4. The refrigeration device according to claim 3, characterized in that An accommodating space is formed between the bottom of the air guide cover and the bottom of the pot body, and the evaporation component is installed in the accommodating space.

5. The refrigeration device according to claim 4, characterized in that The air duct structure includes an outer air duct and an inner air duct. The gap between the heat preservation structure and the air guide cover is the outer air duct, and the gap between the air guide cover and the pot body is the inner air duct. The outer air duct and the inner air duct are connected through the return air grille.

6. The refrigeration device according to claim 4, characterized in that The evaporation component includes an evaporator, an evaporation fan and a first fan bracket. The evaporator is arranged on the insulation structure at the bottom of the shell. The first fan bracket is arranged on the top of the evaporator. The evaporation fan is installed on the first fan bracket. The air outlet surface of the evaporation fan is arranged toward the bottom of the air guide cover.

7. The refrigeration device according to claim 1, characterized in that A central base is further provided in the housing, and the central base divides the housing into two parts, the compressor, the condensing assembly, and the PCB assembly are placed on the left side, and the freezing container and the evaporating assembly are placed on the right side; The middle base is an inverted L-shaped structure to separate the left side of the shell into upper and lower mounting cavities. The compressor is installed in the lower mounting cavity, and the condensing assembly and the PCB assembly are both installed in the upper mounting cavity.

8. The refrigeration device according to claim 1, characterized in that The condensing assembly includes a condenser, a condensing fan and a second fan bracket. The two side walls of the shell are respectively provided with an air outlet grille and an air inlet grille. The PCB assembly is arranged close to the air inlet grille. The air outlet surface of the condensing fan is arranged toward the air outlet grille. The condensing fan is installed on the second fan bracket, and the second fan bracket is installed on the top of the condenser.

9. The refrigeration device according to claim 1, characterized in that The throttling component is a capillary tube, and the capillary tube is designed as a coiled pipe.

10. The refrigeration device according to claim 1, wherein A handle is also provided on the top of the shell, and the handle is movably connected to the top of the shell.

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