Refrigeration device

Abstract

This utility model provides a refrigeration device, including a housing with a compressor compartment at the bottom and a ventilation channel at the back, extending along the height of the refrigeration device and reaching the top of the housing. A condenser is installed within the ventilation channel. A centrifugal fan is located at the back of the compressor compartment, with its inlet connected to the compressor compartment and its outlet facing upwards, connected to the lower end of the ventilation channel. The centrifugal fan is configured such that when running, it draws air from the compressor compartment to form an airflow, which is then transported upwards along the ventilation channel through the outlet. The ventilation channel serves as a heat dissipation space for the condenser. When the refrigeration device is embedded in a cabinet, it eliminates the need for additional heat dissipation space as required by traditional built-in refrigerators, allowing the refrigeration device to fully utilize the cabinet space and increase the effective volume of the refrigerator.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration electrical technology, and mainly to a refrigeration device. Background Technology

[0002] Refrigeration equipment is a device that maintains a constant low temperature to store goods, and it is widely used in modern life and industrial production. For example, refrigerators and freezers have refrigeration compartments that create a refrigerated environment for storing goods.

[0003] The compressor compartment of a refrigerator is usually designed with a ventilation structure. Sufficient ventilation space can promote air circulation in the compressor compartment, reduce the temperature of the compressor compartment, and indirectly improve the overall performance of the refrigerator.

[0004] In the current market, the ventilation structure of the compressor compartment in built-in refrigerators is usually designed on the side wall or back of the cabinet. When the refrigerator is embedded in the cabinet, a certain amount of heat dissipation space usually needs to be reserved, which results in a loss of the refrigerator's volume and a reduction in the usable space of the built-in refrigerator. Utility Model Content

[0005] The purpose of this utility model is to provide a refrigeration device that, when embedded in a cabinet, eliminates the need to reserve space for heat dissipation inside the cabinet, thereby increasing the usable volume of the refrigeration device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] One aspect of this application provides a refrigeration device, including a housing forming the outer shell of the refrigeration device; a compressor compartment is provided at the bottom of the housing, and a ventilation channel is provided at the back of the housing, the ventilation channel extending along the height direction of the refrigeration device, the upper end of the ventilation channel extending to the top of the housing; a condenser is installed in the ventilation channel; a centrifugal fan is located at the back of the compressor compartment, the air inlet of the centrifugal fan is connected to the compressor compartment, the air outlet of the centrifugal fan is arranged upward, and the air outlet of the centrifugal fan is connected to the lower end of the ventilation channel; the centrifugal fan is configured such that when the centrifugal fan is running, the centrifugal fan can draw air from the compressor compartment to form an airflow, and the airflow is delivered upward along the ventilation channel through the air outlet of the centrifugal fan.

[0008] The above technical solution has the following advantages or beneficial effects: The ventilation channel is designed at the back of the cabinet and extends along the height of the refrigeration unit, reaching the top of the cabinet. The centrifugal fan transports the air in the compressor compartment upwards to the ventilation channel for heat dissipation. On the one hand, by placing the condenser on the ventilation channel, the ventilation channel can serve as a heat dissipation space for the condenser. When the refrigeration unit is embedded in the cabinet, there is no need to reserve additional heat dissipation space like traditional built-in refrigerators. The embedded refrigeration unit of this solution can make full use of the cabinet space, increasing the effective volume of the refrigerator. Users can place more items, improving the volume utilization rate of the refrigerator. On the other hand, because the centrifugal fan has good centralized airflow performance, when the centrifugal fan is running, it can quickly draw air from the compressor compartment to form an airflow and transport it upwards along the ventilation channel. This allows the air in the compressor compartment to be efficiently extracted, forming a good air circulation and effectively reducing the temperature inside the compressor compartment. Moreover, the centrifugal fan is smaller in size than the axial fan, saving space in the compressor compartment and facilitating a compact spatial arrangement of the compressor compartment.

[0009] In some embodiments of this application, a refrigeration device is provided, wherein the ventilation channel is formed by a recess in the back of the housing and the ventilation channel is exposed on the housing.

[0010] Another technical solution mentioned above has the following advantages or beneficial effects: By creating a ventilation channel through a recess in the back of the housing, and simultaneously mounting the condenser on the ventilation channel and exposing it to the housing, the contact area between the housing and the outside air is increased, which facilitates faster heat dissipation into the surrounding environment, thereby improving the condenser's heat dissipation efficiency. Furthermore, compared to traditional closed or concealed ventilation structures, the exposed ventilation channel can reduce the number of parts and assembly steps, lower the manufacturing complexity and cost of setting up the ventilation channel, and improve the overall integration and compactness of the refrigeration unit.

[0011] In some embodiments of this application, a refrigeration device is provided, wherein the centrifugal fan has an air inlet on its front side and an air outlet on its top, and the top of the centrifugal fan is correspondingly connected to the lower end of the ventilation channel.

[0012] Another technical solution described above has the following advantages or beneficial effects: By setting an air inlet at the front of the centrifugal fan and an air outlet at the top connected to the lower end of the ventilation duct, a directional airflow path is formed. Air is drawn in from the front of the centrifugal fan, enters the centrifugal fan along its axial direction, and is then accelerated by the centrifugal fan before being discharged upwards from the top, directly into the ventilation duct. The directional airflow formed by the centrifugal fan allows for disordered diffusion and mixing of airflow within the casing, reducing airflow resistance and enabling smoother airflow, thereby improving ventilation efficiency.

[0013] In some embodiments of this application, a refrigeration device is provided, wherein a water receiving tray is provided at the bottom of the compressor chamber; a centrifugal fan is disposed above the water receiving tray, and the bottom of the centrifugal fan is supported on the rear side of the water receiving tray.

[0014] Another technical solution described above has the following advantages or beneficial effects: By placing the centrifugal fan above the water collection tray, with the top of the centrifugal fan connected to the side wall of the ventilation duct, the upper and lower ends of the centrifugal fan are fixed, improving the installation stability of the centrifugal fan. When the centrifugal fan is running, the airflow generated in the compressor chamber can circulate the air around the water collection tray, accelerating the evaporation of condensate and preventing condensate from accumulating in the water collection tray. Moreover, by placing the centrifugal fan above the water collection tray and supporting it at the bottom behind the water collection tray, the vertical space of the compressor chamber can be fully utilized. Within the limited space of the compressor chamber, the water collection tray and centrifugal fan are rationally arranged, avoiding space waste, making the internal structure of the compressor chamber more compact, and providing more usable space for the installation of other components.

[0015] In some embodiments of this application, a refrigeration device is provided, wherein the centrifugal fan includes a fan housing and a fan impeller, and a fan cavity is formed inside the fan housing; the air inlet is provided on the front side of the fan housing, and the air outlet is provided on the top of the fan housing; the top of the fan housing is connected to the side wall of the ventilation channel, and the lower end of the fan housing is engaged with the water receiving tray; the fan impeller is rotatably disposed in the fan cavity.

[0016] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: the lower end of the fan casing is snapped into the water receiving tray. The snap-fit ​​connection method is simple and reliable, without complicated tools and cumbersome steps, and can quickly complete the installation and disassembly of the centrifugal fan. It can provide a stable support structure for the centrifugal fan, withstand the vibration and impact force during the operation of the fan, and prevent the centrifugal fan from shaking or shifting.

[0017] In some embodiments of this application, a refrigeration device is provided, wherein the lower end of the fan housing is provided with a snap-fit ​​portion, one end of the snap-fit ​​portion is connected to the back of the fan housing, the other end of the snap-fit ​​portion extends downward, and an insertion groove is formed between the other end of the snap-fit ​​portion and the back of the fan housing, the insertion groove being aligned and snapped with the rear sidewall of the water receiving tray.

[0018] Another technical solution described above has the following advantages or beneficial effects: A slot is formed between the other end of the snap-fit ​​part and the back of the fan housing. When the slot is aligned and snapped into place with the rear wall of the water receiving tray, the rear wall of the water receiving tray can be secured between the snap-fit ​​part and the rear wall of the water receiving tray, thus forming a reliable connection between the fan housing and the water receiving tray. This effectively withstands the vibration and impact forces during fan operation, preventing the centrifugal fan from loosening or falling off during operation and ensuring the stable operation of the centrifugal fan.

[0019] In some embodiments of this application, a cooling device is provided, wherein the air outlet is provided with a plurality of grilles, the plurality of grilles are spaced apart, a plurality of grille holes are formed between two adjacent grilles, and the grilles extend into the ventilation channel.

[0020] Another technical solution described above has the following advantages or beneficial effects: By setting multiple grilles at intervals, multiple grille holes are formed at the air outlet. When the centrifugal fan discharges airflow from the air outlet, the grille holes can disperse and guide the airflow, allowing the airflow to enter the ventilation channel more evenly. This avoids the problem of uneven airflow distribution within the ventilation channel caused by the airflow flowing from the centrifugal fan directly and concentratedly discharged from a certain area. The multiple grilles can reduce turbulence and eddies at the connection between the air outlet and the ventilation channel, reducing airflow energy loss and thus improving the ventilation and heat dissipation efficiency of the refrigeration unit.

[0021] In some embodiments of this application, a cooling device is provided, wherein a guide wall is provided at the air outlet, the guide wall extends into the ventilation channel and is arranged at intervals from the side wall of the ventilation channel; in the direction from bottom to top, the guide wall extends obliquely towards the side wall away from the ventilation channel, and a guide gap is formed between the guide wall and the side wall of the ventilation channel.

[0022] Another technical solution described above has the following advantages or beneficial effects: By providing a guide wall at the air outlet that is spaced apart from the side wall of the ventilation channel, a guide gap can be formed between the guide wall and the side wall of the ventilation channel. This allows condensate to flow back along the guide gap to the water collection tray in the compressor chamber, preventing condensate from flowing directly into the fan cavity of the fan casing and corroding the impeller or causing other problems that could affect the normal operation of the centrifugal fan. Moreover, the increased distance between the guide gap and the side wall of the ventilation channel from bottom to top minimizes the distance between the lower end of the guide wall and the side wall of the ventilation channel, which facilitates more efficient airflow from the compressor chamber into the ventilation channel through the air outlet of the centrifugal fan.

[0023] In some embodiments of this application, a refrigeration device is provided. The housing includes a back panel and a first side panel and a second side panel disposed opposite to each other. The back panel is located on the back of the refrigeration device, and the first side panel and the second side panel are respectively disposed on both sides of the back panel. The housing is provided with a ventilation component located on the back of the housing and extending along the height direction of the refrigeration compartment. The ventilation component is recessed to form a ventilation channel. One side of the ventilation component is connected to the back panel, and the other side of the ventilation component is connected to the second side panel.

[0024] Another technical solution described above has the following advantages or beneficial effects: By recessing the ventilation component to form a ventilation duct, operators can directly install the ventilation component on the back of the housing, thus pre-installing a heat dissipation channel for the condenser within the housing, simplifying the structure and installation of the ventilation duct. Furthermore, both the ventilation component and the back panel are located on the back of the housing. One side of the back panel connects to the rear end of the first side panel, the other side connects to one side of the ventilation component, and the other side connects to the rear end of the second side panel. In this way, the ventilation component only occupies a portion of the space at the back of the housing, reducing the space occupied by the ventilation unit and saving space reserved for heat dissipation channels within the ventilation unit, thereby improving the compactness of the ventilation unit.

[0025] In some embodiments of this application, a refrigeration device is provided, wherein the bottom of the compressor compartment is provided with a heat dissipation air inlet; the plane of the bottom wall of the compressor compartment is higher than the plane of the bottom wall of the cabinet, so that when the refrigeration device is installed in the cabinet, the bottom wall of the compressor compartment can form an air inlet gap with the bottom wall of the cabinet, and the heat dissipation air inlet is connected to the air inlet gap.

[0026] Another technical solution described above has the following advantages or beneficial effects: By setting the plane of the bottom wall of the compressor compartment to be higher than the plane of the bottom wall of the cabinet, that is, the bottom wall of the cabinet and the bottom wall of the compressor compartment are not on the same plane, when the refrigeration unit is installed in the cabinet, the bottom wall of the cabinet is supported on the bottom surface of the cabinet. Since the bottom wall of the compressor compartment is higher than the bottom wall of the cabinet, an air inlet gap is formed between it and the bottom surface of the cabinet. The heat dissipation air inlet is connected to the air inlet gap, providing an independent air inlet channel for the compressor compartment. In this way, external air can directly enter the heat dissipation air inlet through the air inlet gap. The existence of the air inlet gap increases the circulation space for air to enter the compressor compartment, allowing air to flow more smoothly into the heat dissipation air inlet. With the start of the centrifugal fan, this heat can be carried away in time, reducing the temperature inside the compressor compartment. At the same time, it can also have a heat dissipation and cooling effect on the condenser located in the ventilation channel. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application.

[0028] Figure 1 This is a schematic diagram of a refrigeration device according to an embodiment of this application;

[0029] Figure 2 for Figure 1 A diagram of the back of the building;

[0030] Figure 3 for Figure 2 A schematic diagram from another perspective;

[0031] Figure 4 for Figure 1 Bottom diagram;

[0032] Figure 5 for Figure 1 A partial view;

[0033] Figure 6 A cross-sectional diagram showing the installation of the refrigeration unit in conjunction with the cabinet;

[0034] Figure 7 of Figure 5 A magnified view of part A;

[0035] Figure 8 for Figure 2 Installation diagram of centrifugal fan and water collection tray;

[0036] Figure 9 for Figure 8 A schematic diagram from another perspective;

[0037] Figure 10 This is a schematic diagram of a ventilation component.

[0038] The correspondence between the reference numerals and the component names is as follows:

[0039] 1. Cabinet; 100. Refrigeration compartment; 101. Compressor compartment; 102. Ventilation duct; 103. Heat dissipation air inlet; 104. Air inlet gap; 11. Door; 12. Condenser; 13. Cabinet back panel; 14. First cabinet side panel; 15. Second cabinet side panel; 16. Cabinet bottom plate; 17. Ventilation components; 171. Main board; 172. First side panel; 173. Second side panel; 174. First connecting plate; 175. Second connecting plate; 18. Cabinet bottom wall;

[0040] 2. Centrifugal fan; 201. Air inlet; 202. Air outlet; 2021. Grille hole; 203. Fan cavity; 204. Insertion slot; 205. Guide gap; 21. Fan housing; 211. Air outlet; 22. Impeller; 23. Snap-fit ​​part; 24. Grille; 26. Guide wall; 27. Support plate;

[0041] 3. Water receiving tray; 301. Alternating groove. Detailed Implementation

[0042] This utility model provides a refrigeration device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0043] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The refrigeration device in the embodiments of the present invention can be a freezer, refrigerator, or other refrigeration cabinet. The following uses a refrigerator as an example to describe in detail the improved technical solution of the refrigeration device in the embodiments of the invention.

[0046] Figure 1 This is a schematic diagram of a refrigeration device according to an embodiment of this application.

[0047] like Figure 1 As shown, the refrigeration device provided in this embodiment of the present invention includes a housing 1. The housing 1 can adopt a hollow structure such as a cuboid. The housing 1 forms the outer shell of the refrigerator. It should be noted that the housing 1 can also adopt a hollow shell structure of other shapes.

[0048] like Figure 1As shown, in some embodiments, the interior of the housing 1 forms a refrigeration chamber 100 with a front opening. Multiple refrigeration chambers 100 may be provided.

[0049] like Figure 1 As shown, in some embodiments, multiple refrigeration compartments 100 can serve as independent storage spaces, such as freezers, refrigerators, and variable-temperature compartments, to meet different refrigeration needs such as freezing, refrigeration, and variable-temperature storage according to different types of food, and to store items that require refrigeration or freezing. The multiple refrigeration compartments 100 can be arranged vertically or horizontally.

[0050] In some embodiments, the refrigerator may include a liner (not shown in the figure). The liner may be disposed inside the body 1. A cooling compartment 100 may be provided inside the liner. A foaming space is formed between the liner and the body 1. When the foaming material is filled into the foaming space, it can effectively insulate the cooling compartment.

[0051] In some embodiments, the refrigerator includes a door 11. The door 11 is disposed on the front side of the refrigerator body 1 and covers the opening of the refrigeration compartment for opening and closing the refrigeration compartment.

[0052] It should be noted that multiple doors 11 can be installed. Each door 11 can be installed in a one-to-one correspondence with a refrigeration room. Multiple doors 11 can open and close a single refrigeration room simultaneously. A single door 11 can also open and close multiple refrigeration rooms simultaneously.

[0053] In some embodiments, the refrigerator includes a refrigeration system (not shown). The refrigeration system may be located inside the refrigerator body 1. The refrigeration system is used to provide cold air to the interior of the refrigerator to maintain a low-temperature environment in each refrigeration compartment.

[0054] In some embodiments, the refrigeration system includes a compressor (not shown). The compressor, as the power source of the refrigeration cycle, draws in low-temperature, low-pressure refrigerant gas and compresses it into a high-temperature, high-pressure gas. The compressor can deliver the high-temperature, high-pressure refrigerant to the condenser 12.

[0055] Figure 2 for Figure 1 A diagram of the back side.

[0056] like Figure 2 As shown, in some embodiments, the refrigeration system includes a condenser 12. The condenser 12 can be used to receive refrigerant flowing from the compressor, cooling the high-temperature, high-pressure refrigerant gas from the compressor and converting it into a liquid state. The condenser 12 can transfer heat from the refrigerant to the surrounding air, thereby lowering the temperature of the refrigerant.

[0057] In some embodiments, the refrigeration system includes a throttling device (not shown). The condenser 12 can deliver condensed refrigerant to the throttling device. The throttling device may be a capillary tube. The throttling device can be used to reduce the pressure of the refrigerant.

[0058] In some embodiments, the refrigeration system includes an evaporator (not shown). A throttling device can deliver a throttled and depressurized refrigerant into the evaporator. The evaporator can be used for the refrigerant vapor to evaporate and boil, thereby absorbing heat from the surrounding medium.

[0059] In some embodiments, the compressor, condenser 12, throttling device, and evaporator can be connected in sequence to form a refrigeration circuit. The refrigerant can circulate within the refrigeration circuit to achieve refrigeration of the interior of the housing 1.

[0060] In some embodiments, a compressor compartment 101 is provided at the bottom of the housing 1. Part of the refrigeration system may be located in the compressor compartment 101, wherein the compressor is located in the compressor compartment 101.

[0061] Figure 3 for Figure 2 A schematic diagram from another perspective.

[0062] like Figure 3 As shown, in some embodiments, a ventilation channel 102 may be provided at the back of the housing 1. The ventilation channel 102 extends along the height direction of the refrigeration unit, with its upper end extending to the top of the housing 1 and its lower end extending to the top of the compressor chamber. The condenser 12 is installed within the ventilation channel 102.

[0063] By providing a ventilation channel 102 on the back of the cabinet 1 and installing the condenser 12 inside the ventilation channel 102, the ventilation channel 102 provides a heat dissipation space for the condenser 12. When the cabinet 1 is embedded in the cabinet, there is no need to reserve heat dissipation space between the side wall of the cabinet 1 and the cabinet, which greatly saves the installation space of the refrigerator, improves the usable space of the built-in refrigerator, and enables the refrigerator to better integrate into the kitchen and other space environments, meeting the user's needs for space utilization.

[0064] Furthermore, since the air outlet 202 of the cabinet is generally located at the top, by extending the ventilation channel 102 along the height direction of the refrigeration unit, the hot air generated after the air exchanges heat with the condenser 12 can effectively flow upward along the ventilation channel 102 to the air outlet 202 of the top cabinet.

[0065] In some embodiments, the ventilation channel 102 may extend vertically along the height direction of the refrigeration device. It should be noted that in some other embodiments, the ventilation channel 102 may also extend obliquely upward, with the upper end of the ventilation channel 102 extending obliquely to the top of the housing 1.

[0066] like Figure 2 and Figure 3 As shown, in some embodiments, the refrigeration device may include a centrifugal fan 2. The centrifugal fan 2 is located at the back of the compressor chamber 101, and the air inlet 201 of the centrifugal fan 2 is connected to the compressor chamber 101. The centrifugal fan 2 may be located close to the back of the housing 1. The air outlet 202 of the centrifugal fan 2 is arranged upward, and the air outlet 202 of the centrifugal fan 2 is connected to the lower end of the ventilation channel 102.

[0067] The centrifugal fan 2 is configured such that when the centrifugal fan 2 is running, the centrifugal fan 2 can draw air from the compressor chamber 101 to form an airflow, and the airflow is transported upward along the ventilation channel 102 through the air outlet 202 of the centrifugal fan 2.

[0068] Specifically, by installing a centrifugal fan 2 inside the compressor chamber 101 as a heat dissipation fan for the condenser 12, when the centrifugal fan 2 is running, it can quickly draw air from the compressor chamber 101 to form an airflow, which is then transported upwards along the ventilation channel 102. During this process, the airflow in the compressor chamber 101 enters the centrifugal fan 2 axially and then is transported upwards along the ventilation channel 102. As it flows through the condenser 12, it can quickly remove heat from the condenser 12, thus achieving a good heat dissipation effect. In this way, by using the centrifugal fan 2 to change the airflow direction within the compressor chamber 101, the airflow formed within the compressor chamber 101 can flow upwards efficiently. Compared to the existing technology that uses axial flow fans for heat dissipation, the centrifugal fan 2 can effectively utilize the limited space within the compressor chamber 101 to dissipate heat from the condenser 12 installed in the ventilation channel 102. Furthermore, the airflow within the compressor compartment 101 is accelerated by the centrifugal fan 2 before entering the ventilation duct 102, effectively preventing disordered diffusion and mixing of airflow within the housing 1, thereby improving ventilation efficiency. Simultaneously, combined with the lighter weight of hot air and the air pressure from the centrifugal fan 2, the hot air accelerates upward diffusion, creating an effective circulation path between the compressor compartment and the ventilation duct 102 containing the condenser 12.

[0069] Furthermore, the outlet 202 of the centrifugal fan 2 is connected to the lower end of the ventilation channel 102, ensuring that the dimensions of the outlet 202 and the lower end of the ventilation channel 102 are compatible. This creates a smooth and continuous transition between the centrifugal fan 2 and the lower end of the ventilation channel 102, preventing sudden changes in airflow velocity upon entering the ventilation channel 102, which could lead to a decrease or even stagnation of some airflow and affect overall airflow circulation. The connection between the outlet 202 of the centrifugal fan 2 and the lower end of the ventilation channel 102 effectively reduces energy loss caused by airflow turbulence and eddies, allowing the airflow at the outlet of the centrifugal fan 2 to flow upwards stably and efficiently along the ventilation channel 102, thus improving airflow delivery efficiency.

[0070] Currently, in the market, the ventilation structure of the compressor compartment 101 is usually designed on the side wall or back of the cabinet 1. When the refrigerator is embedded in the cabinet, a certain amount of heat dissipation space usually needs to be reserved, which results in a loss of the refrigerator's volume and a reduction in the usable space of the embedded refrigerator.

[0071] like Figure 2 and Figure 3 As shown, in this embodiment, the ventilation channel 102 is designed on the back of the cabinet 1 and extends along the height direction of the refrigeration unit, with its upper end extending to the top of the cabinet 1. The centrifugal fan 2 delivers the air in the compressor chamber 101 upward to the ventilation channel 102 for heat dissipation. On the one hand, by placing the condenser 12 on the ventilation channel 102, the ventilation channel 102 can serve as a heat dissipation space for the condenser 12. When the refrigeration unit is embedded in the cabinet, there is no need to reserve additional heat dissipation space like traditional built-in refrigerators. The embedded refrigeration unit of this solution can make full use of the cabinet space, increase the effective volume of the refrigerator, and allow users to place more items, thus improving the volume utilization rate of the refrigerator. On the other hand, since the centrifugal fan 2 has good centralized airflow performance, when the centrifugal fan 2 is running, it can quickly draw air from the compressor chamber 101 to form an airflow and deliver it upward along the ventilation channel 102. This allows the air in the compressor chamber 101 to be efficiently drawn out, forming a good air circulation and effectively reducing the temperature inside the compressor chamber 101. Moreover, the centrifugal fan 2 is smaller in size than the axial fan, which can save space in the compressor chamber 101 and facilitates a compact spatial arrangement of the compressor chamber 101.

[0072] Figure 4 for Figure 1 Bottom diagram; Figure 5 for Figure 1 A partial view; Figure 6 for Figure 1 A cross-sectional view.

[0073] like Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the bottom of the compressor chamber 101 may be provided with a heat dissipation air inlet 103. When the centrifugal fan 2 is started, air from outside the refrigeration room can enter the compressor chamber 101 through the heat dissipation air inlet 103.

[0074] like Figure 6 As shown, the bottom wall of the compressor compartment 101 is located on the rear side of the bottom wall of the cabinet 1. The plane of the bottom wall of the compressor compartment 101 is higher than the plane of the bottom wall of the cabinet 1, so that when the refrigeration unit is installed in the cabinet, the bottom wall of the compressor compartment 101 can form an air inlet gap 104 with the bottom wall of the cabinet, and the heat dissipation air inlet 103 is connected to the air inlet gap 104.

[0075] In current cabinets, the refrigeration unit's casing 1 is typically installed at a distance between the bottom of the cabinet and the mounting surface. Outside air can enter the cabinet through the gap between the bottom of the cabinet and the mounting surface.

[0076] During the operation of the refrigeration unit, the compressor and other components in the compressor compartment 101 will generate a large amount of heat. By setting the plane of the bottom wall of the compressor compartment 101 to be higher than the plane of the bottom wall of the cabinet 1, that is, the bottom wall of the cabinet 1 and the bottom wall of the compressor compartment 101 are not on the same plane, when the refrigeration unit is installed in the cabinet, the bottom wall of the cabinet 1 is supported on the bottom surface of the cabinet. Since the bottom wall of the compressor compartment 101 is higher than the bottom wall of the cabinet 1, an air inlet gap 104 is formed between it and the bottom surface of the cabinet. The heat dissipation air inlet 103 is connected to the air inlet gap 104, providing an independent air inlet channel for the compressor compartment 101. In this way, external air can directly enter the heat dissipation air inlet 103 through the air inlet gap 104. The existence of the air inlet gap 104 increases the flow space for air to enter the compressor chamber 101, allowing the air to flow more smoothly into the heat dissipation air inlet 103. With the start of the centrifugal fan 2, the air can carry away the heat in time, reducing the temperature inside the compressor chamber 101. At the same time, it can also dissipate heat and cool the condenser 12 set in the ventilation channel 102.

[0077] like Figure 6 As shown, in some embodiments, the bottom of the compressor compartment 101 is provided with a compartment bottom plate 16, and the plane where the compartment bottom plate 16 is located is set to be higher than the plane where the bottom wall of the box 1 is located, and an air inlet gap 104 is formed between the compartment bottom plate 16 and the bottom surface of the cabinet.

[0078] The chassis floor plate 16 is spaced apart on the rear side of the bottom wall of the enclosure 1, and the heat dissipation air inlet 103 can be formed between the chassis floor plate 16 and the rear side of the bottom wall of the enclosure 1.

[0079] like Figure 2 and Figure 3As shown, in some embodiments, a ventilation channel 102 can be recessed on the outer back of the housing 1, and the ventilation channel 102 is exposed on the housing 1. By forming a ventilation channel 102 in the recess on the back of the housing 1, and simultaneously mounting the condenser 12 on the ventilation channel 102 and exposing it to the housing 1, the contact area between the housing 1 and the outside air is increased, which facilitates faster heat dissipation into the surrounding environment, thereby improving the heat dissipation efficiency of the condenser 12. Compared to traditional closed or concealed ventilation structures, the ventilation channel 102 exposed on the housing 1 in this embodiment can also reduce the number of parts and assembly steps, lower the manufacturing complexity and cost of setting the ventilation channel 102, and improve the overall integration and compactness of the refrigeration device.

[0080] It should be noted that in some other embodiments, the ventilation channel 102 may be formed inside the housing 1. The opening of the ventilation channel 102 exposed outside the housing 1 may be covered by a side panel (not shown in the figure), which shields the ventilation channel 102.

[0081] Figure 7 of Figure 5 A magnified view of part A.

[0082] like Figure 2 and Figure 7 As shown, in some embodiments, the centrifugal fan 2 may have an air inlet 201 on its front side and an air outlet 202 on its top. The top of the centrifugal fan 2 is connected to the lower end of the ventilation channel 102. Specifically, the top of the centrifugal fan 2 is inserted into the lower end of the ventilation channel 102, and the air outlet 202 can extend into the ventilation channel 102.

[0083] The front side of the centrifugal fan 2 can refer to the side of the centrifugal fan 2 facing the door 11. Since the air outlet 202 of the centrifugal fan 2 is directly connected to the lower end of the ventilation channel 102, the airflow in the compressor chamber 101 can enter the ventilation channel 102 at a higher speed and pressure after being pressurized by the centrifugal fan 2.

[0084] In this embodiment, by providing an air inlet 201 at the front of the centrifugal fan 2 and an air outlet 202 at the top connected to the lower end of the ventilation channel 102, the centrifugal fan's ability to change airflow direction by 90 degrees creates a directional airflow path within the compressor chamber and the ventilation channel 102. Specifically, air is drawn in from the front of the centrifugal fan 2, enters the centrifugal fan 2 along its axial direction, is accelerated by the centrifugal fan 2, and then discharged upwards from the top, directly entering the ventilation channel 102. The directional airflow created by the centrifugal fan 2 reduces disordered diffusion and mixing of airflow within the housing 1, reduces airflow resistance, and allows for smoother airflow, thereby improving ventilation efficiency.

[0085] It should be noted that in some other embodiments, an air inlet 201 may be provided on the periphery of the centrifugal fan 2. For example, the air inlet 201 may be located on the left, right or other peripheral positions of the centrifugal fan 2.

[0086] like Figure 2 and Figure 7 As shown, in some embodiments, a water collection tray 3 is provided at the bottom of the compressor chamber 101. The water collection tray 3 can collect the condensate generated during the refrigeration process, prevent the condensate from accumulating in the refrigeration room, avoid problems such as short circuits and corrosion caused by water accumulation, and ensure the safe operation of the refrigeration unit.

[0087] Centrifugal fan 2 is positioned above water receiving tray 3, with its bottom supported on the rear side of water receiving tray 3. The upper end of centrifugal fan 2 is fixedly connected to the side wall of ventilation duct 102. The front air inlet 201 of centrifugal fan 2 can be located on the same side as water receiving tray 3.

[0088] By placing the centrifugal fan 2 above the water collection tray 3, and connecting the top of the centrifugal fan 2 to the side wall of the ventilation duct 102, the upper and lower ends of the centrifugal fan 2 are fixed, improving the installation stability of the centrifugal fan 2. When the centrifugal fan 2 is running, the airflow generated in the compressor chamber 101 can flow with the air around the water collection tray 3, accelerating the evaporation of condensate and preventing condensate from accumulating in the water collection tray 3. Moreover, by placing the centrifugal fan 2 above the water collection tray 3 and supporting it at the rear of the water collection tray 3, the vertical space of the compressor chamber 101 can be fully utilized. Within the limited space of the compressor chamber 101, the water collection tray 3 and the centrifugal fan 2 are rationally arranged, avoiding space waste, making the internal structure of the compressor chamber 101 more compact, and providing more usable space for the installation of other components.

[0089] In some other embodiments, the bottom of the centrifugal fan 2 may be supported on the bottom of the compressor chamber 101.

[0090] Figure 8 for Figure 2 Installation diagram of centrifugal fan and water collection tray;

[0091] like Figure 7 and Figure 8 As shown, in some embodiments, the front sidewall of the water receiving tray 3 can be recessed to form a relief groove 301, which communicates with the heat dissipation air inlet 103. In this way, external air can directly enter the heat dissipation air inlet 103 through the air inlet gap 104, and then enter the compressor chamber 101 through the relief groove 301. The airflow can flow through the water receiving tray 3 and then enter the centrifugal fan 2.

[0092] like Figure 7 and Figure 8As shown, in some embodiments, the centrifugal fan 2 may include a fan housing 21 and an impeller 22. A fan cavity 203 is formed within the fan housing 21, and the impeller 22 is rotatably disposed within the fan cavity 203. An air inlet 201 is provided on the front side of the fan housing 21, and an air outlet 202 is provided on the top of the fan housing 21. The fan cavity 203 communicates with both the air inlet 201 and the air outlet 202. The top of the fan housing 21 is connected to the side wall of the ventilation channel 102, and the lower end of the fan housing 21 is engaged with the water receiving tray 3.

[0093] The lower end of the fan housing 21 is snapped into the water receiving tray 3, and the top of the fan housing 21 is connected to the side wall of the ventilation channel 102. The top of the fan housing 21 can be connected by screws, snap-fit, or other methods. The upper and lower ends of the fan housing 21 are connected to the ventilation channel 102 and the water receiving tray 3 respectively, providing a stable support structure for the centrifugal fan 2. This structure can withstand the vibration and impact forces during fan operation, preventing the centrifugal fan 2 from shaking or shifting, and ensuring that the impeller 22 maintains a stable working state during long-term operation. The snap-fit ​​connection between the lower end of the fan housing 21 and the water receiving tray 3 is simple and reliable, requiring no complicated tools or cumbersome steps, allowing for quick installation and disassembly of the centrifugal fan 2.

[0094] Figure 9 for Figure 8 A schematic diagram from another perspective.

[0095] like Figure 9 As shown, in some embodiments, the lower end of the fan housing 21 may be provided with a snap-fit ​​portion 23, which is used to snap onto the rear sidewall of the water receiving tray 3. One end of the snap-fit ​​portion 23 is connected to the back of the fan housing 21, and the other end of the snap-fit ​​portion 23 extends downward, with a slot 204 formed between the other end of the snap-fit ​​portion 23 and the back of the fan housing 21. The slot 204 is aligned and snapped onto the rear sidewall of the water receiving tray 3.

[0096] Specifically, the snap-fit ​​part 23 can be L-shaped, and the insertion groove 204 formed between the snap-fit ​​part 23 and the back of the fan housing 21 is oriented downwards. The other end of the snap-fit ​​part 23 forms an insertion groove 204 with a gap between it and the back of the fan housing 21. When the insertion groove 204 is aligned and snapped into place with the rear sidewall of the water receiving tray 3, the rear sidewall of the water receiving tray 3 can be secured between the snap-fit ​​part 23 and the rear sidewall of the water receiving tray 3, thus forming a reliable connection between the fan housing 21 and the water receiving tray 3. This effectively withstands the vibration and impact forces during fan operation, preventing the centrifugal fan 2 from loosening or falling off during operation, and ensuring the stable operation of the centrifugal fan 2.

[0097] In some embodiments, the snap-fit ​​portion 23 may have a certain degree of elasticity, enabling it to adapt to the rear sidewall of the water receiving tray 3 of different sizes and shapes.

[0098] like Figure 9 As shown, in some embodiments, two or more snap-fit ​​portions 23 may be provided. The snap-fit ​​portions 23 may be distributed at intervals on the back of the fan housing 21, and thus snap-fit ​​and fix to the rear sidewall of the water receiving tray 3 respectively.

[0099] like Figure 9 As shown, in some embodiments, the top of the fan housing 21 is provided with an air outlet 211, the air outlet 211 is provided with an air outlet 202, and the air outlet 202 is aligned and inserted into the ventilation channel 102.

[0100] like Figure 9 As shown, in some embodiments, the air outlet 211 may be provided with a grille 24. Multiple grilles 24 may be provided, and multiple grilles 24 are provided at the air outlet 202. Multiple grilles 24 are spaced apart, and multiple grille holes 2021 are formed between adjacent grilles 24. The grilles 24 extend into the ventilation channel 102.

[0101] By spaced out multiple grilles 24, multiple grille holes 2021 are formed at the air outlet 202. When the centrifugal fan 2 discharges airflow from the air outlet 202, the grille holes 2021 can disperse and guide the airflow, allowing the airflow to enter the ventilation channel 102 more evenly. In this way, the airflow flowing from the centrifugal fan 2 to the ventilation channel 102 is avoided from being directly and concentratedly discharged from a certain area, which would lead to uneven airflow distribution within the ventilation channel 102. In this embodiment, the arrangement of multiple grilles 24 can reduce the turbulence and eddy currents of the airflow at the connection between the air outlet 202 and the ventilation channel 102, reduce airflow energy loss, and thus improve the ventilation and heat dissipation efficiency of the refrigeration device.

[0102] like Figure 2 , Figure 6 and Figure 9 As shown, in some embodiments, a guide wall 26 may be provided at the air outlet 202. The guide wall 26 can extend into the ventilation channel 102, and the guide wall 26 is spaced apart from the side wall of the ventilation channel 102, forming a guide gap 205 between the guide wall 26 and the side wall of the ventilation channel 102. The guide gap 205 is located between the air outlet 202 and the side wall of the ventilation channel 102. The lower end of the guide gap 205 is vertically opposite to the interior of the water receiving tray 3.

[0103] Since condensation may exist in the ventilation channel 102, a guide wall 26 is provided at the air outlet 202, which is spaced apart from the side wall of the ventilation channel 102. A guide gap 205 can be formed between the guide wall 26 and the side wall of the ventilation channel 102. This allows the condensation to flow back to the water receiving tray 3 in the compressor chamber 101 along the guide gap 205, preventing the condensation from flowing directly into the fan cavity 203 of the fan housing 21 and corroding the impeller 22 or causing other problems that may affect the normal operation of the centrifugal fan 2.

[0104] like Figure 6 As shown, in some embodiments, the guide wall 26 extends obliquely toward the side wall away from the ventilation channel 102 in the direction from bottom to top, and a guide gap 205 is formed between the guide wall 26 and the side wall of the ventilation channel 102.

[0105] By tilting the guide wall 26 and extending it obliquely away from the sidewall of the ventilation channel 102 in the upward direction, the tilted guide wall 26 can guide the airflow smoothly into the ventilation channel 102 when it passes the connection between the air outlet 202 and the ventilation channel 102. This reduces airflow turbulence and eddies, thereby reducing noise generated by the airflow. Moreover, the increased distance between the guide gap 205 and the sidewall of the ventilation channel 102 in the upward direction minimizes the distance between the lower end of the guide wall 26 and the sidewall of the ventilation channel 102. This allows the airflow in the compressor chamber 101 to enter the ventilation channel 102 more efficiently through the air outlet 202 of the centrifugal fan 2.

[0106] like Figure 9 As shown, in some embodiments, the air outlet 211 may be provided with a support plate 27, which may be vertically disposed at the air outlet 202. The front side of the support plate 27 is connected to the back of the guide wall 26, and by providing the support plate 27, the guide wall 26 can be provided with structural support.

[0107] In some embodiments, the support plate 27 can be disposed between any adjacent grilles 24. The support plate 27 can be arranged parallel to the grilles 24, which can reduce the air resistance at the air outlet 202.

[0108] In some embodiments, multiple support plates 27 may be provided, and the multiple support plates 27 may be arranged adjacent to each other at intervals.

[0109] like Figure 2As shown, in some embodiments, the housing 1 may include a back panel 13 and a first side panel 14 and a second side panel 15 disposed opposite to each other. The back panel 13 is located at the back of the refrigeration unit, and the first side panel 14 and the second side panel 15 are respectively disposed on both sides of the back panel 13. The first side panel 14 and the second side panel 15 may be disposed on opposite left and right sides of the back panel 13.

[0110] Figure 10 This is a schematic diagram of a ventilation component.

[0111] like Figure 10 As shown, the cabinet 1 is equipped with a ventilation component 17. The ventilation component 17 is located on the back of the cabinet 1, and is arranged adjacent to and spaced apart from the back panel 13. The ventilation component 17 extends along the height direction of the refrigeration compartment. The ventilation component 17 can be recessed to form a ventilation channel 102. One side of the ventilation component 17 is connected to the back panel 13, and the other side of the ventilation component 17 is connected to the second side panel 15.

[0112] The ventilation channel 102 is formed by the recess of the ventilation component 17. The operator can directly install the ventilation component 17 on the back of the box 1, so that the box 1 is pre-equipped with the heat dissipation channel of the condenser 12, which simplifies the structure and installation structure of the ventilation duct.

[0113] like Figure 2 As shown, both the ventilation component 17 and the back panel 13 are located on the back of the housing 1. One side of the back panel 13 is connected to the rear end of the first side panel 14, and the other side of the back panel 13 is connected to one side of the ventilation component 17. The other side of the ventilation component 17 is connected to the rear end of the second side panel 15. In this way, the ventilation component 17 only occupies part of the space on the back of the housing 1, which can reduce the occupancy of the internal space of the refrigeration unit, save the space reserved for heat dissipation channels in the refrigeration unit, and help improve the space compactness of the refrigeration unit.

[0114] like Figure 10 As shown, in some embodiments, the ventilation component 17 may include a main board 171, which may be disposed on the back of the refrigeration unit. The main board 171 is arranged parallel to the back panel 13 and is located on the front side of the back panel 13. The main board 171 extends along the height direction of the refrigeration unit.

[0115] The ventilation component 17 may include a first side plate 172, which may be bent and extended rearward from the side of the main board 171 near the back panel 13, and the first side plate 172 is connected to the back panel 13.

[0116] The ventilation component 17 may include a second side panel 173, which extends rearward from the main board 171 near the second box side panel 15. The second side panel 173 is disposed at a relatively interval on the side of the first side panel 172 away from the box back panel 13, and is connected to the second side wall. A ventilation channel 102 is formed between the main board 171, the first box side panel 14, and the second box side panel 15.

[0117] In some embodiments, the ventilation element 17 may be U-shaped.

[0118] In some embodiments, the flow guide wall 26 may extend into the ventilation channel 102 and be disposed on the rear side of the main board 171. In the direction from bottom to top, the flow guide wall 26 extends obliquely in a direction away from the main board 171, and a flow guide gap 205 is formed between the flow guide wall 26 and the back side of the main board 171.

[0119] In some embodiments, the ventilation component 17 may be provided with a first connecting plate 174. The first connecting plate 174 extends from the first side plate 172 toward the back plate 13 and is connected to the back plate 13.

[0120] In some embodiments, the ventilation component 17 may be provided with a second connecting plate 175. The second connecting plate 175 extends from the second side plate 173 toward the side of the second box side plate 15 and is connected to the second box side plate 15.

[0121] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of this application is limited only by the appended claims.

Claims

1. A refrigeration apparatus, characterized by comprising: include: The housing forms the outer shell of the refrigeration device; the bottom of the housing is provided with a compressor compartment, the back of the housing is provided with a ventilation channel, the ventilation channel extends along the height direction of the refrigeration device, and the upper end of the ventilation channel extends to the top of the housing; A condenser is installed inside the ventilation duct; A centrifugal fan is located at the back of the compressor chamber. The air inlet of the centrifugal fan is connected to the compressor chamber, the air outlet of the centrifugal fan is arranged facing upwards, and the air outlet of the centrifugal fan is connected to the lower end of the ventilation channel. The centrifugal fan is configured such that when the centrifugal fan is running, it can draw air from the compressor chamber to form an airflow, and the airflow is delivered upward along the ventilation channel through the outlet of the centrifugal fan.

2. The refrigeration device according to claim 1, characterized in that, The ventilation channel is formed by a recess on the back of the housing and is exposed on the housing.

3. The refrigeration device according to claim 1, characterized in that, The centrifugal fan has an air inlet on its front side and an air outlet on its top. The top of the centrifugal fan is connected to the lower end of the ventilation channel.

4. The refrigeration device according to claim 3, characterized in that, The bottom of the compressor chamber is equipped with a water collection tray; The centrifugal fan is positioned above the water receiving tray, and the bottom of the centrifugal fan is supported on the rear side of the water receiving tray.

5. The refrigeration device according to claim 4, characterized in that, The centrifugal fan includes: A fan housing has a fan cavity formed inside it; the fan housing has an air inlet on its front side and an air outlet on its top; the top of the fan housing is connected to the side wall of the ventilation channel, and the lower end of the fan housing is engaged with the water receiving tray. The impeller is rotatably disposed inside the fan cavity.

6. The refrigeration device according to claim 5, characterized in that, The lower end of the fan housing is provided with a snap-fit ​​part. One end of the snap-fit ​​part is connected to the back of the fan housing, and the other end of the snap-fit ​​part extends downward. An insertion groove is formed between the other end of the snap-fit ​​part and the back of the fan housing. The insertion groove is aligned and snap-fitted with the rear side wall of the water receiving tray.

7. The refrigeration device according to claim 5, characterized in that, The air outlet is provided with multiple grilles, which are spaced apart. Multiple grille holes are formed between two adjacent grilles, and the grilles extend into the ventilation channel.

8. The refrigeration device according to claim 5, characterized in that, A guide wall is provided at the air outlet, the guide wall extends into the ventilation channel and is arranged at intervals with the side wall of the ventilation channel; in the direction from bottom to top, the guide wall extends obliquely towards the side wall away from the ventilation channel, and a guide gap is formed between the guide wall and the side wall of the ventilation channel.

9. The refrigeration device according to claim 2, characterized in that, The housing includes a back panel and a first side panel and a second side panel disposed opposite to each other. The back panel is located on the back of the refrigeration device, and the first side panel and the second side panel are disposed on both sides of the back panel. The enclosure is equipped with a ventilation component located at the back of the enclosure and extending along the height of the refrigeration compartment. The ventilation component is recessed to form the ventilation channel. One side of the ventilation component is connected to the back panel of the enclosure, and the other side of the ventilation component is connected to the second side panel of the enclosure.

10. The refrigeration device according to claim 1, characterized in that, The bottom of the compressor chamber is equipped with a heat dissipation air inlet; The plane of the bottom wall of the compressor compartment is higher than the plane of the bottom wall of the cabinet, so that when the refrigeration device is installed in the cabinet, the bottom wall of the compressor compartment can form an air inlet gap with the bottom wall of the cabinet, and the heat dissipation air inlet is connected to the air inlet gap.

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