Bottom plate adjusting mechanism, refrigerator and heat dissipation method

Abstract

The invention relates to a bottom plate adjusting mechanism, a refrigerator and a heat dissipation method. The bottom plate adjusting mechanism comprises a box body, a condenser, a compressor, a bottom plate and a transmission assembly; a mounting cavity is formed in the box body; the compressor is communicated with the condenser through a condensation pipe; the bottom plate is movably connected with the box body, a heat dissipation cavity is defined between the bottom plate and the box body, and the condensation pipe is located in the heat dissipation cavity; the transmission assembly comprises a first transmission part and a second transmission part, the first transmission part is matched with the second transmission part, and the first transmission part can drive the second transmission part to move so as to drive the box body to be close to or away from the bottom plate, so that the size of the heat dissipation cavity is reduced or increased. The transmission assembly drives the bottom plate and the box body to move relatively, so that the size of the heat dissipation cavity can be flexibly adjusted, the air inlet channel can be widened by increasing the size of the heat dissipation cavity, air inlet blocking is avoided, the size of the heat dissipation cavity can be reduced, occupied space can be reduced, and the environmental suitability can be greatly improved during low-load operation on the flat ground.

Description

Technical Field

[0001] This application relates to the field of refrigerator heat dissipation technology, and in particular to a base plate adjustment mechanism, a refrigerator, and a heat dissipation method. Background Technology

[0002] With the continuous improvement of the performance requirements of household refrigeration equipment, the base plate design of traditional refrigeration appliances has gradually formed a technical route in the industry development, which is based on supporting the main structure and cooperating with the compressor and condenser to achieve basic heat dissipation. Through a fixed base plate combined with natural convection or a single fan heat dissipation mode, it can meet the basic refrigeration needs in normal use scenarios. With its simple structure and low manufacturing cost, it has been used in various household refrigerators, freezers and other products for a long time, laying the foundation for the popularization of refrigeration equipment.

[0003] Traditional refrigerators have a fixed bottom air intake space, which can easily lead to air intake obstruction in complex environments such as carpets or uneven floors, causing the compressor compartment temperature to rise and affecting cooling efficiency. Summary of the Invention

[0004] This application provides a bottom plate adjustment mechanism to solve the problem that the fixed bottom air intake space of traditional refrigerators is prone to air intake obstruction in complex environments such as carpets and uneven floors, which causes the compressor compartment temperature to rise and affects the refrigeration efficiency.

[0005] In a first aspect, this application provides a base plate adjustment mechanism, characterized in that it includes: The housing has an installation cavity inside; A condenser, wherein the condenser is disposed in the mounting cavity; A compressor, wherein the compressor is connected to the condenser via a condenser pipe, and the compressor is disposed in the mounting cavity; A base plate is movably connected to the housing, and a heat dissipation cavity is formed between the base plate and the housing, with the condenser pipe located in the heat dissipation cavity; The transmission assembly includes a first transmission component and a second transmission component. The first transmission component is rotatably mounted on the housing, and the second transmission component is mounted on the bottom plate. The first transmission component cooperates with the second transmission component, and the first transmission component can drive the second transmission component to move, thereby causing the housing to move closer to or further away from the bottom plate, so as to reduce or increase the volume of the heat dissipation cavity.

[0006] Optionally, the mounting cavity is located at one end of the housing near the bottom plate, the housing has a first heat dissipation hole and a second heat dissipation hole, the first heat dissipation hole connects the heat dissipation cavity and the mounting cavity, and the second heat dissipation hole connects the mounting cavity to the outside; the bottom plate has a third heat dissipation hole, the third heat dissipation hole connects the heat dissipation cavity to the outside.

[0007] Optionally, the mounting cavity is provided with a separator that divides the mounting cavity into a first mounting cavity and a second mounting cavity spaced apart, with the condenser located in the first mounting cavity and the compressor located in the second mounting cavity.

[0008] Optionally, the first mounting cavity is provided with a fan and a bracket, the bracket is connected to the housing, the fan is movably mounted on the bracket, and the fan is located at the end of the condenser away from the base plate.

[0009] Optionally, the fan has a movable part, and the bracket has a mating part. The movable part is movably disposed on the mating part to adjust the airflow direction of the fan.

[0010] Optionally, a cooling box is provided inside the heat dissipation cavity. The cooling box is used to contain liquid cooling medium. The cooling box is slidably disposed on the housing so that the condenser tube is immersed in or exposed in the liquid cooling medium of the cooling box.

[0011] Optionally, a storage chamber is provided at one end of the housing away from the bottom plate. The storage chamber and the heat dissipation cavity are connected by a drain pipe, which can guide the condensate from the storage chamber to the cooling box.

[0012] Optionally, the first transmission component is a gear, and the second transmission component is a rack, wherein the gear meshes with the rack.

[0013] Optionally, a support member is provided at the end of the base plate away from the box body.

[0014] Secondly, this application provides a refrigerator, including the bottom plate adjustment mechanism provided in the first aspect of this application.

[0015] Thirdly, this application provides a heat dissipation method applied to the refrigerator provided in the second aspect of the application. The bottom plate adjustment mechanism includes a cooling box and at least two mounting cavities. The compressor and the condenser are respectively disposed in one of the mounting cavities. The cooling box is slidably disposed on the cabinet so that the condenser tube is immersed in or exposed in the liquid cooling medium within the cooling box. The method is characterized by including the following steps: Determine the target mounting cavity from at least two mounting cavities; When the temperature of the target mounting cavity reaches the preset temperature condition, the housing is controlled to move away from the base plate, and the cooling box is controlled to move closer to the housing, so that the condenser tube is immersed in the liquid cooling medium in the cooling box; Determine whether the temperature of the target mounting cavity meets the preset temperature condition; If the temperature is lower than the preset temperature, control the housing to move closer to the base plate and control the cooling box to move away from the housing.

[0016] Optionally, a storage chamber is provided at the end of the housing away from the base plate. The storage chamber and the heat dissipation cavity are connected by a drain pipe. The drain pipe is equipped with a valve. When the temperature in the target mounting cavity reaches a preset temperature condition, the housing is controlled to move away from the base plate, and the cooling box is controlled to move closer to the housing, so that the condenser tube is immersed in the liquid cooling medium in the cooling box, including: The liquid level of the liquid cooling medium in the cooling box is detected. If the liquid level does not meet the preset liquid level condition, the valve body is controlled to open. The depth to which the condenser tube is immersed in the liquid cooling medium is detected. If the depth does not meet the preset depth condition, the cooling box is controlled to move closer to the housing.

[0017] Optionally, a fan and a bracket are provided in the mounting cavity corresponding to the condenser. The bracket is connected to the housing, and the fan is movably mounted on the bracket. The fan is located at the end of the condenser away from the base plate. After determining the target mounting cavity in at least two mounting cavities, the process includes: If the target mounting cavity is the mounting cavity corresponding to the condenser; Once the temperature in the target mounting cavity reaches a preset temperature condition, determine the location within the target mounting cavity where the preset temperature condition has been reached. Control the fan to rotate and move it toward the target mounting cavity to reach the preset temperature condition.

[0018] The technical solutions provided in this application have the following advantages compared with the prior art: The base plate adjustment mechanism provided in this application embodiment drives the relative movement of the base plate and the housing through a transmission component, allowing the volume of the heat dissipation cavity to be flexibly adjusted. When the refrigeration appliance is placed in complex environments such as carpets or uneven ground, the volume of the heat dissipation cavity can be increased to widen the air intake channel and avoid air intake obstruction. When operating on flat ground and under low load, the volume of the heat dissipation cavity can be reduced to reduce space occupation and significantly improve environmental adaptability. The condenser, compressor, and condenser pipe are all precisely matched with the heat dissipation cavity. Adjusting the volume of the heat dissipation cavity can directly optimize the internal air circulation efficiency, accelerate the heat dissipation generated by the compressor and condenser during operation, avoid local high temperature accumulation, and significantly improve the operational stability and refrigeration efficiency of the refrigeration system. The condenser pipe is located in the adjustable-volume heat dissipation cavity, making the heat dissipation path more reasonable, indirectly reducing the operating losses of core components, and extending the overall service life of the refrigeration appliance. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 A schematic diagram of the structure of a refrigerator provided in this application embodiment. Figure 1 ; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the BB direction; Figure 4 for Figure 1 Schematic diagram of cross-sectional structure in the CC direction; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the DD direction; Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure in the EE direction; Figure 7 A schematic diagram of the structure of a refrigerator provided in this application embodiment. Figure 2 ; Figure 8 for Figure 7 A schematic diagram of the partial cross-sectional structure at point F; Figure 9 This is a schematic diagram of the structure of the fan and bracket provided in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of the active part and the mating part provided in the embodiments of this application; Figure 11 A step diagram illustrating the heat dissipation method provided in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures: 1. Housing; 1a. Heat dissipation cavity; 1b. First heat dissipation hole; 11a. First mounting cavity; 11b. Second mounting cavity; 1c. Second heat dissipation hole; 1d. Storage compartment; 2. Condenser; 3. Compressor; 4. Condenser; 5. Base plate; 51. Supporting component; 5a. Third heat dissipation hole; 6. Transmission assembly; 61. First transmission component; 62. Second transmission component; 7. Isolation components; 8. Fan; 81. Activities Department; 9. Bracket; 91. Mating part; 10. Cooling box; 12. Drainage pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0026] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0027] To address the technical problem of traditional refrigerators having a fixed bottom air intake space, which can easily lead to air intake obstruction in complex environments such as carpets or uneven floors, causing the compressor compartment temperature to rise and affecting refrigeration efficiency, this application provides a bottom plate adjustment mechanism. The transmission component 6 drives the bottom plate 5 to move relative to the cabinet 1, allowing the volume of the heat dissipation cavity 1a to be flexibly adjusted. When the refrigeration appliance is placed in complex environments such as carpets or uneven floors, the volume of the heat dissipation cavity 1a can be increased to widen the air intake channel and avoid air intake obstruction. When operating on a flat surface and under low load, the volume of the heat dissipation cavity 1a can be reduced to decrease space occupation, greatly improving environmental adaptability.

[0028] Figures 1 to 10 A base plate adjustment mechanism provided in this application includes a housing 1, a condenser 2, a compressor 3, a base plate 5, and a transmission assembly 6. The housing 1 has an installation cavity; the condenser 2 is located in the installation cavity; the compressor 3 is connected to the condenser 2 through a condenser pipe 4 and is located in the installation cavity; the base plate 5 is movably connected to the housing 1, and the base plate 5 and the housing 1 enclose a heat dissipation cavity 1a, with the condenser pipe 4 located in the heat dissipation cavity 1a; the transmission assembly 6 includes a first transmission member 61 and a second transmission member 62. The first transmission member 61 is rotatably mounted on the housing 1, and the second transmission member 62 is mounted on the base plate 5. The first transmission member 61 and the second transmission member 62 cooperate, and the first transmission member 61 can drive the second transmission member 62 to move, thereby moving the housing 1 closer to or away from the base plate 5, so that the volume of the heat dissipation cavity 1a decreases or increases.

[0029] In this embodiment, the core of the base plate adjustment mechanism is to achieve adjustable volume of the heat dissipation cavity 1a through the coordinated assembly of the housing 1, condenser 2, compressor 3, movable base plate 5, and transmission assembly 6. Specifically, the mounting cavity inside the housing 1 can be divided into independent mounting areas for the condenser 2 and compressor 3 by a partition, ensuring that the two are assembled compactly and do not interfere with each other. The condenser 2 and compressor 3 are connected by condenser pipes 4 to form a complete refrigeration circuit, and the condenser pipes 4 are arranged in a serpentine or zigzag shape within the heat dissipation cavity 1a enclosed by the base plate 5 and the housing 1 to maximize the heat exchange contact area. The base plate 5 and the housing 1 are connected by a liftable movable connection. The first transmission component 61 of the transmission assembly 6 can be a transmission gear, and the corresponding second transmission component 62 is fixed in the vertical direction. A rack is fixed at the bottom of the housing 1, and gear mounting seats are provided at the four corners of the base plate 5. The transmission gear is rotated and mounted on the mounting seat and meshes with the rack. At the same time, the transmission gear is connected to the transmission motor. The motor drives the gear to rotate forward and backward, which drives the base plate 5 to rise and fall in the vertical direction, thereby realizing the movement of the housing 1 and the base plate 5, and thus reducing or increasing the volume of the heat dissipation cavity 1a. The first transmission component 61 and the second transmission component 62 can also adopt a screw and nut cooperation structure (the screw rotates on the housing 1 and the nut is fixed on the base plate 5), or a hydraulic push rod and slider cooperation structure (the hydraulic push rod is fixed on the housing 1 and the slider is connected to the base plate 5). Both can realize the stable lifting and lowering of the base plate 5 and the volume adjustment of the heat dissipation cavity 1a, adapting to different assembly space requirements.

[0030] The base plate adjustment mechanism drives the base plate 5 to move relative to the housing 1 through the transmission component 6, allowing the volume of the heat dissipation cavity 1a to be flexibly adjusted. When the refrigeration appliance is placed in complex environments such as carpets or uneven ground, the volume of the heat dissipation cavity 1a can be increased to widen the air intake channel and avoid air intake obstruction. When operating on flat ground and under low load, the volume of the heat dissipation cavity 1a can be reduced to reduce space occupation and significantly improve environmental adaptability. The condenser 2, compressor 3 and condenser pipe 4 are all precisely matched with the heat dissipation cavity 1a. Adjusting the volume of the heat dissipation cavity 1a can directly optimize the internal air circulation efficiency, accelerate the heat dissipation generated by the compressor 3 and condenser 2 during operation, avoid local high temperature accumulation, and significantly improve the operating stability and refrigeration efficiency of the refrigeration system. The condenser pipe 4 is located in the adjustable volume heat dissipation cavity 1a, with a more reasonable heat dissipation path, indirectly reducing the operating loss of core components and extending the overall service life of the refrigeration appliance. The transmission component 6 adopts mature transmission structures such as gear rack and pinion, screw and nut, and is combined with the movable connection design between the base plate 5 and the box 1. The structure has high reliability and is easy to assemble. It does not require additional complex heat dissipation components, and controls manufacturing costs while ensuring adjustment function, which is suitable for the large-scale production needs of household refrigeration appliances.

[0031] Please see Figures 6 to 8The mounting cavity is located at one end of the housing 1 near the bottom plate 5. The housing 1 has a first heat dissipation hole 1b and a second heat dissipation hole 1c. The first heat dissipation hole 1b connects the heat dissipation cavity 1a and the mounting cavity, and the second heat dissipation hole 1c connects the mounting cavity to the outside. The bottom plate 5 has a third heat dissipation hole 5a, which connects the heat dissipation cavity 1a to the outside.

[0032] In one embodiment, the mounting cavity is located at one end of the cabinet 1 near the bottom plate 5, making the distance between the condenser 2, compressor 3 and heat dissipation cavity 1a shorter, and allowing heat to be directly dissipated through the heat dissipation cavity 1a at the bottom of the refrigerator; the cabinet 1 is provided with a first heat dissipation hole 1b and a second heat dissipation hole 1c, wherein the first heat dissipation hole 1b penetrates the bottom of the cabinet 1 and the cavity wall of the mounting cavity, realizing the connection between the heat dissipation cavity 1a and the mounting cavity, and the second heat dissipation hole 1c is located in the lower area of ​​the back panel or side panel of the cabinet 1, directly connecting the mounting cavity with the external environment; a third heat dissipation hole 5a is evenly distributed on the bottom plate 5, forming a ventilation hole array, and the third heat dissipation hole 5a penetrates the upper and lower surfaces of the bottom plate 5, realizing the connection between the heat dissipation cavity 1a and the outside. Specifically, the first heat dissipation hole 1b can be set as a strip grid, evenly arranged along the adjacent walls of the mounting cavity and the heat dissipation cavity 1a to ensure smooth airflow; the second heat dissipation hole 1c adopts a hollow mesh structure, which has both dustproof and ventilation functions; the third heat dissipation hole 5a can be a circular or square through hole, the hole diameter and distribution density of which are adapted according to the heat dissipation requirements, and correspond to the position of the first heat dissipation hole 1b at the bottom of the box 1, forming a directional airflow channel from the third heat dissipation hole 5a on the bottom plate 5, through the heat dissipation cavity 1a, the first heat dissipation hole 1b, the mounting cavity, and finally through the second heat dissipation hole 1c to the outside.

[0033] The mounting cavity is located near the bottom plate 5, and works with the first heat dissipation hole 1b to connect the heat dissipation cavity 1a and the mounting cavity. This allows the heat generated by the compressor 3 and condenser 2 to be quickly conducted to the heat dissipation cavity 1a, and then conducted to the outside through the third heat dissipation hole 5a, or directly to the outside through the second heat dissipation hole 1c, forming a two-way heat dissipation channel. This breaks the limitation of a single heat dissipation path and significantly improves heat dissipation efficiency. The second heat dissipation hole 1c and the third heat dissipation hole 5a connect to the outside from the side / back of the cabinet 1 and the bottom plate 5, respectively. Combined with the adjustable volume of the heat dissipation cavity 1a, it can form a flexible airflow configuration of bottom air intake and side / back air exhaust or side / back air intake and bottom air exhaust according to different heat dissipation needs. The ventilation system ensures smooth airflow even in complex environments, preventing the accumulation of hot air. The first heat dissipation hole 1b achieves precise connection between the mounting cavity and the heat dissipation cavity 1a, allowing the volume adjustment of the heat dissipation cavity 1a to be synchronized with the airflow within the mounting cavity, further optimizing the heat dissipation conditions of the core components and reducing the impact of localized high temperatures on cooling efficiency. The design of multiple heat dissipation holes eliminates the need for additional power cooling components, enhancing natural convection through structural optimization. It combines energy saving and quiet operation, and the grid and mesh structure of the heat dissipation holes effectively prevents dust from entering the mounting cavity and heat dissipation cavity 1a, reducing the risk of dust accumulation on core components and extending maintenance cycles and equipment lifespan.

[0034] Please see Figure 3 , Figure 4 as well as Figure 8 The mounting cavity is provided with an isolation element 7, which divides the mounting cavity into a first mounting cavity 11a and a second mounting cavity 11b that are spaced apart. The condenser 2 is located in the first mounting cavity 11a, and the compressor 3 is located in the second mounting cavity 11b.

[0035] In this embodiment, the isolation component 7 inside the mounting cavity adopts a plate-like structure adapted to the cabinet 1. Its material can be a metal heat sink plate or a high-strength engineering plastic plate. The edge of the isolation component 7 is tightly fitted to the inner wall of the mounting cavity. Specifically, it can be assembled by bolt fixing or snap-fit. The mounting cavity is divided into independent and spaced first mounting cavity 11a and second mounting cavity 11b along the transverse direction of the refrigerator. The size of the first mounting cavity 11a matches the outer dimensions of the condenser 2. The condenser 2 is fixedly assembled in the first mounting cavity 11a by the mounting frame, and the outlet of the condenser 2 is connected to the condenser pipe 4 through the through hole reserved on the cabinet 1. The space of the second mounting cavity 11b is adapted to the installation requirements of the compressor 3. The compressor 3 is fixed to the bottom of the second mounting cavity 11b by shock-absorbing pads to prevent the vibration generated during operation from being transmitted to the cabinet 1 or the isolation component 7.

[0036] The mounting cavity is divided into an independent first mounting cavity 11a and a second mounting cavity 11b by the isolation component 7, realizing the physical isolation layout of the condenser 2 and the compressor 3, avoiding mutual interference during operation. The partitioned layout allows the first mounting cavity 11a and the second mounting cavity 11b to form their own independent airflow channels. With the connection design between the first heat dissipation hole 1b and the heat dissipation cavity 1a, the airflow distribution can be optimized for the different heat dissipation needs of the condenser 2 and the compressor 3, avoiding the accumulation of local high temperature caused by the superposition of heat between the two, and further improving the heat dissipation efficiency. The vibration generated by the operation of the compressor 3 will not directly affect the installation stability of the condenser 2, reducing the risk of loosening or damage to the condenser tube 4 due to vibration. At the same time, it prevents the heat exchange pipeline of the condenser 2 from bumping and rubbing against the compressor 3 components, ensuring the operational reliability of the core components.

[0037] Please see Figures 8 to 9 The first mounting cavity 11a is equipped with a fan 8 and a bracket 9. The bracket 9 is connected to the housing 1. The fan 8 is movably mounted on the bracket 9. The fan 8 is located at the end of the condenser 2 away from the bottom plate 5.

[0038] In one embodiment, the bracket 9 within the first mounting cavity 11a adopts a frame or cantilever structure, made of high-strength metal or engineering plastic. The bracket 9 is securely connected to the inner wall of the first mounting cavity 11a by bolts or welding. Its installation position corresponds to the end of the condenser 2 furthest from the base plate 5, allowing outside cold air to be drawn into the first mounting cavity 11a through the third heat dissipation hole 5a and the first heat dissipation hole 1b for heat exchange with the condenser 2, and then flow out through the second heat dissipation hole 1c. The fan 8 is movably mounted on the bracket 9, specifically through movable connectors such as ball hinges or rotating shafts. The fan 8's dimensions are adapted to the spatial layout of the first mounting cavity 11a, with its air inlet side facing the condenser 2 and its air outlet side corresponding to the second heat dissipation hole 1c, ensuring that the airflow entering from the third heat dissipation hole 5a of the base plate 5 can accurately act on the surface of the condenser 2. The bracket 9 can be designed as a height-adjustable structure, allowing the distance between the fan 8 and the condenser 2 to be changed via telescopic supports or adjusting clips to adapt to different heat dissipation requirements.

[0039] The fan 8 is located at the end of the condenser 2 away from the base plate 5. With the movable connection structure of the bracket 9, the airflow direction can be flexibly adjusted, allowing the airflow to flow into the first mounting cavity 11a to exchange heat with the condenser 2 and then flow out from the second heat dissipation hole 1c. This accelerates the flow of hot air around the condenser 2. At the same time, the adjustable volume of the heat dissipation cavity 1a further enhances the heat dissipation efficiency and solves the problem of insufficient heat dissipation from natural convection alone. The bracket 9 is firmly connected to the housing 1, providing a reliable mounting base for the fan 8 and preventing the vibration generated by the fan 8 during operation from being directly transmitted to the condenser 2 or the housing 1, reducing the impact of vibration on the core components and ensuring the stability of equipment operation. The independent placement of the fan 8 and the condenser 2 in the first mounting cavity 11a avoids interference from the vibration of the compressor 3 on the operation of the fan 8. It also facilitates the individual maintenance and replacement of the fan 8 without occupying additional external space of the housing 1, thus balancing heat dissipation effect and the overall compactness of the equipment structure.

[0040] Please see Figure 10 The fan 8 is provided with a movable part 81, and the bracket 9 is provided with a mating part 91. The movable part 81 is movably disposed on the mating part 91 to adjust the blowing direction of the fan 8.

[0041] In this embodiment, the movable part 81 of the fan 8 adopts a ball joint connecting rod or a rotatable bushing structure. The ball end of the ball joint connecting rod is fixedly connected to the outer shell of the fan 8, while the rotatable bushing is sleeved on the outside of the mounting shaft of the fan 8. The mating part 91 of the bracket 9 is an adaptation structure adapted to the movable part 81. A ball socket with an arc-shaped limiting surface is provided corresponding to the ball joint connecting rod, and a bushing with a positioning hole is provided corresponding to the rotatable bushing. After the movable part 81 is inserted into the mating part 91, it can rotate flexibly in multiple directions to achieve adjustable airflow direction. A torque damping component, such as a rubber pad, is added between the movable part 81 and the mating part 91 so that the fan 8 can be suspended and fixed at any angle to adapt to different heat dissipation scenarios.

[0042] The adaptive design of the movable part 81 and the mating part 91 provides reliable structural support for the adjustment of the air blowing direction of the fan 8. Through a simple mechanical adaptation structure, the fan 8 can be adjusted to blow air in multiple directions. It can accurately guide the airflow to the high-temperature area in the first mounting cavity 11a, or adjust the air outlet direction according to the airflow state of the heat dissipation cavity 1a, and guide the hot air to be quickly discharged through the second heat dissipation hole 1c. This solves the problems of incomplete heat dissipation coverage and hot air accumulation of traditional fixed-direction fans 8, and further improves heat dissipation efficiency. The clearance fit and lubrication and damping design of the movable part 81 and the mating part 91 not only ensure the flexibility of adjustment, but also prevent the air blowing direction from deviating due to vibration during the operation of the fan 8. At the same time, it reduces the wear of the movable connection and extends the service life of the structure.

[0043] Please see Figures 2 to 8 The heat dissipation cavity 1a is provided with a cooling box 10, which is used to contain liquid cooling medium. The cooling box 10 is slidably disposed on the housing 1 so that the condenser tube 4 is immersed in or exposed in the liquid cooling medium of the cooling box 10.

[0044] In one embodiment, the cooling box 10 inside the heat dissipation cavity 1a is made of corrosion-resistant materials such as engineering plastics or stainless steel. Its interior forms a receiving chamber to hold liquid cooling media such as defrosting water and ethylene glycol aqueous solution. The external dimensions of the cooling box 10 are adapted to the space of the heat dissipation cavity 1a, and an opening is provided at the top of the box to facilitate the immersion and detachment of the condenser tubes 4. The cooling box 10 is connected to the housing 1 via a sliding structure, specifically using a guide rail slider, a telescopic linkage drive, or a screw and nut transmission. During assembly, the sliding direction of the cooling box 10 is set vertically, and the condenser tubes 4 are arranged in a serpentine or U-shaped pattern corresponding to the area of ​​the cooling box 10. When the cooling box 10 rises along the sliding structure, the condenser tubes 4 are gradually immersed in the liquid cooling medium; when the cooling box 10 descends, the condenser tubes 4 are gradually exposed outside the liquid cooling medium, realizing the switching between the immersed and exposed states.

[0045] The adaptive design of the cooling box 10 and the sliding structure provides liquid cooling adjustment function for the cooling of the condenser tube 4. By sliding the cooling box 10, the condenser tube 4 can be immersed or exposed in the liquid cooling medium. It can flexibly switch between air cooling, liquid cooling, and a combination of air cooling and liquid cooling according to the heat dissipation requirements. When the heat dissipation load is high, the condenser tube 4 is immersed in the liquid cooling medium to enhance heat exchange. When the heat dissipation load is low, the condenser tube 4 is exposed and air cooling alone can meet the requirements, balancing heat dissipation efficiency and energy saving. The cooling box 10 contains the liquid cooling medium to form an independent liquid cooling space, avoiding contact between the liquid cooling medium and components such as the compressor 3 and the fan 8, reducing the risk of corrosion or short circuit. The sliding structure operates stably, ensuring that the immersion depth of the condenser tube 4 is accurately controllable and improving the stability of the liquid cooling effect. This structure does not require changes to the fixed layout of the condenser tube 4. The function is switched only by sliding the cooling box 10. The structure has strong compatibility. Refrigerator defrosting water can be used as the liquid cooling medium, without the need for additional addition, further reducing the cost of use and maintenance difficulty.

[0046] Please see Figure 3 and Figure 8 The end of the housing 1 away from the bottom plate 5 is provided with a storage chamber 1d. The storage chamber 1d and the heat dissipation cavity 1a are connected by a drain pipe 12. The drain pipe 12 can guide the condensate in the storage chamber 1d to the cooling box 10.

[0047] In one embodiment of this application, a condensate collection tank is provided at the bottom of the storage compartment 1d in the upper or middle area of ​​the refrigerator, away from the bottom plate 5, to collect condensate generated in the storage compartment 1d. A drain pipe 12, made of corrosion-resistant flexible tubing or rigid conduit, has one end sealed to the drain outlet at the bottom of the condensate collection tank, and the other end extends into the heat dissipation cavity 1a and corresponds to the opening of the cooling box 10, forming a condensate flow channel from the storage compartment 1d to the cooling box 10. The layout of the drain pipe 12 conforms to the internal structure of the refrigerator 1, avoiding interference with components such as the condenser 2 and compressor 3. A solenoid valve can be added to the drain pipe 12, electrically connected to a liquid level sensor inside the cooling box 10, to achieve automatic control of condensate replenishment.

[0048] The design of connecting the storage chamber 1d and the heat dissipation cavity 1a through the drain pipe 12 enables the rational utilization of condensate. The condensate naturally generated in the storage chamber 1d is directly guided to the cooling box 10 as a liquid cooling medium, eliminating the need for additional special coolant, reducing operating costs and maintenance frequency, and avoiding waste or cleaning trouble caused by direct discharge of condensate. With the sliding adjustment function of the cooling box 10, the continuous replenishment of condensate ensures the sufficiency of the liquid cooling medium, ensuring the stable operation of the air-cooled and liquid-cooled composite heat dissipation mode. Especially in high heat dissipation load scenarios, it avoids the decrease in heat exchange efficiency due to insufficient liquid cooling medium. The linkage between the solenoid valve and the liquid level sensor enables the on-demand replenishment of condensate, preventing overflow due to excessively high liquid level or failure due to excessively low liquid level in the cooling box 10, and improving the automation and reliability of the liquid cooling system.

[0049] Please see Figure 2 , Figure 3 as well as Figure 5 In this embodiment, the first transmission component 61 is a cylindrical spur gear or helical gear. The gear is rotatably mounted on the bottom of the housing 1 via bearings, and is fixedly connected to the output shaft of the transmission motor, which drives forward and reverse rotation. The second transmission component 62 is a rack adapted to the gear. The rack is fixed vertically to the edge or four corners of the base plate 5. The tooth profile and module of the rack are perfectly matched with the gear to ensure precise meshing. The length of the rack is adapted to the lifting stroke of the base plate 5, and limit blocks are provided at its upper and lower ends to prevent the gear meshing from exceeding the stroke range and causing structural damage. Lubricant can be applied to the meshing surfaces of the gear and rack to reduce transmission wear and lower operating noise. A guide groove can be added to the side of the rack, and a corresponding guide boss is provided on the housing 1 to improve the straightness of the rack during lifting.

[0050] The gear and rack meshing transmission design provides an efficient and reliable power transmission method for the lifting of the base plate 5. The gear and rack meshing transmission has high precision and high power transmission efficiency, and can accurately respond to the control commands of the drive motor to achieve precise adjustment of the lifting height of the base plate 5, thereby precisely controlling the volume of the heat dissipation cavity 1a and ensuring the stability of the air intake channel and heat dissipation effect. The transmission structure has strong rigidity and high load-bearing capacity, which can stably support the weight of the base plate 5 and related components of the heat dissipation cavity 1a, avoiding shaking or jamming during the lifting of the base plate 5, and is suitable for the long-term use needs of household refrigeration appliances. This transmission method is mature and reliable, with controllable manufacturing costs and convenient maintenance. The meshing of the gear and rack can be extended with grease, and the combination of limit blocks and guide structures further improves the transmission safety. At the same time, it is highly compatible with the movable connection requirements of the base plate 5, and can quickly realize the enlargement or reduction of the volume of the heat dissipation cavity 1a, effectively cope with the air intake adjustment requirements in complex ground environments, and ensure the efficient operation of the refrigeration system.

[0051] Please see Figure 2 and Figure 3 In one embodiment, a support member 51 is provided at the four corners or edges of the lower surface of the base plate 5, away from the housing 1. The support member 51 is made of wear-resistant and non-slip material such as rubber, silicone, or hard engineering plastic, and its structure can be columnar or hemispherical. The support member 51 can be connected to the base plate 5 by integral molding, bolt fixing, or snap-fit ​​connection. The integral molding structure improves the connection strength, while bolt fixing or snap-fit ​​connection facilitates later replacement and maintenance. The height of the support member 51 is slightly higher than other structures on the lower surface of the base plate 5, ensuring that the support member 51 is in contact with the ground alone when the base plate 5 is placed, avoiding direct wear of the base plate 5 or blockage of ventilation holes by the ground. The support member 51 can be designed as a height-adjustable structure, and the support height can be adjusted by rotation to adapt to uneven ground and ensure that the base plate 5 is placed horizontally.

[0052] The support component 51 is made of wear-resistant and non-slip material, which effectively increases the friction between the base plate 5 and the ground, preventing the refrigeration appliance from sliding and shifting when placed. At the same time, it reduces the direct friction between the base plate 5 and the ground, extending the service life of the base plate 5. Especially during the adjustment of the base plate 5, it can reduce the impact of ground wear on the base plate 5. The support component 51 raises the lower surface of the base plate 5, so that the third heat dissipation hole 5a of the base plate 5 maintains a certain distance from the ground, preventing dust and debris from blocking the ventilation hole, ensuring smooth airflow between the heat dissipation cavity 1a and the outside, and ensuring stable heat dissipation effect. The height-adjustable support component 51 can adapt to uneven ground. By adjusting the height of a single support component 51, the base plate 5 is kept level, avoiding uneven volume distribution of the heat dissipation cavity 1a or unbalanced force on the transmission component 6 due to the tilt of the base plate 5. At the same time, it improves the stability of the refrigeration appliance placement, reduces vibration transmission during operation, and takes into account both structural reliability and safety of use.

[0053] Secondly, please refer to Figures 1 to 10 This application provides a refrigerator, including the bottom plate adjustment mechanism provided in the first aspect of this application.

[0054] In this embodiment, the refrigerator of this application integrates the bottom plate adjustment mechanism of the first aspect mentioned above. The housing 1 of the bottom plate adjustment mechanism and the main housing 1 of the refrigerator are of the same structure. The gear of the transmission component 6 is connected to the drive motor built into the refrigerator. The cooling box 10 is connected to the liquid collection tank of the storage compartment 1d through the drain pipe 12. The fan 8 is mounted on the bracket 9 of the first mounting cavity 11a and is set corresponding to the condenser 2. When the refrigerator is running, it receives signals from the temperature sensor, liquid level sensor and other sensors through the built-in controller, drives the transmission component 6 to adjust the bottom plate 5 to change the volume of the heat dissipation cavity 1a, controls the sliding of the cooling box 10 to realize the liquid cooling switch of the condenser tube 4, and adjusts the blowing direction of the fan 8 at the same time to form a heat dissipation system that combines air cooling and liquid cooling with flexible airflow.

[0055] With the adjustable volume of the heat dissipation cavity 1a, bidirectional heat dissipation channels, and composite heat dissipation mode of the base plate adjustment mechanism, the refrigerator can flexibly adapt to complex placement environments such as carpets and uneven floors, effectively solving the problems of obstructed air intake and low heat dissipation efficiency of traditional refrigerators, and significantly improving cooling efficiency and operational stability. The structural design of condensate resource utilization and precise gear and rack transmission enables the refrigerator to ensure heat dissipation while also having advantages such as energy saving, quiet operation, and long maintenance cycle, reducing user usage and maintenance costs.

[0056] Thirdly, please refer to Figures 1 to 11 This application provides a heat dissipation method applied to the refrigerator provided in the second aspect of the application. The bottom plate adjustment mechanism includes a cooling box 10 and at least two mounting cavities. The compressor 3 and the condenser 2 are respectively disposed in one mounting cavity. The cooling box 10 is slidably disposed on the cabinet 1 so that the condenser pipe 4 is immersed in or exposed to the liquid cooling medium in the cooling box 10. The method includes the following steps: Step S100: Determine the target mounting cavity among at least two mounting cavities; Step S200: When the temperature of the target mounting cavity reaches the preset temperature condition, control the housing 1 to move away from the base plate 5 and control the cooling box 10 to move closer to the housing 1, so that the condenser tube 4 is immersed in the liquid cooling medium in the cooling box 10. Step S300: Determine whether the temperature of the target mounting cavity meets the preset temperature condition; In step S400, if the temperature is lower than the preset temperature, control the housing 1 to move closer to the bottom plate 5 and control the cooling box 10 to move away from the housing 1.

[0057] In one embodiment, the core of this heat dissipation method is to achieve coordinated control of the volume of heat dissipation cavity 1a and liquid cooling mode through target installation cavity identification, temperature trigger adjustment, and closed-loop judgment. Specifically, the target installation cavity is determined among at least two installation cavities (i.e., the first installation cavity 11a and the second installation cavity 11b). The real-time temperature of each installation cavity can be collected by a temperature sensor, and the installation cavity whose temperature is closer to or has reached the preset temperature condition, such as the first installation cavity 11a where the condenser 2 is located or the second installation cavity 11b where the compressor 3 is located, is determined as the target installation cavity. Alternatively, a priority rule can be preset to prioritize the installation cavity where the condenser 2 is located as the target installation cavity, since the heat dissipation efficiency of the condenser 2 directly affects the operating condition of the refrigeration circuit, or the target installation cavity can be automatically switched according to the refrigerator's operating load.

[0058] When the temperature of the target mounting cavity reaches the preset temperature condition, such as when it exceeds the preset heat dissipation trigger threshold, the controller sends a command to the transmission component 6 to drive the gear and rack to mesh and drive the housing 1 away from the base plate 5, increasing the volume of the heat dissipation cavity 1a to widen the air intake channel; at the same time, the controller controls the cooling box 10 to approach the housing 1 through the sliding structure such as the guide rail slider and telescopic linkage, so that the originally exposed condenser tube 4 is gradually immersed in the liquid cooling medium in the cooling box 10, and the air-cooled plus liquid-cooled composite heat dissipation mode is activated.

[0059] The temperature of the target mounting cavity is monitored in real time by a temperature sensor to determine whether the preset temperature condition is still met. If the temperature of the target mounting cavity is detected to be lower than the preset temperature condition, the controller continues to send instructions to drive the transmission component 6 to run in reverse, control the housing 1 to move closer to the base plate 5 to reduce the volume of the heat dissipation cavity 1a, and at the same time control the cooling box 10 to move away from the housing 1, so that the condenser tube 4 is exposed outside the liquid cooling medium, and switch to a single air cooling mode. During the judgment process, a temperature duration threshold can be added, for example, if the temperature is lower than the preset condition for more than 30 seconds, the adjustment will be performed to avoid frequent adjustments due to instantaneous temperature fluctuations.

[0060] This heat dissipation method achieves targeted heat dissipation adjustment by precisely identifying the target installation cavity, avoiding blind adjustment of installation cavities that have not reached the required temperature. This improves heat dissipation efficiency while reducing energy consumption. Priority rules or load linkage identification further adapt to the heat dissipation needs of the refrigerator under different operating conditions. Based on temperature conditions, the coordinated adjustment of the cabinet 1 and the cooling box 10 is triggered, so that the volume change of the heat dissipation cavity 1a is precisely matched with the liquid cooling mode switching. At high temperatures, heat dissipation is enhanced by increasing the size of the heat dissipation cavity 1a and liquid cooling. After cooling down, heat dissipation cavity 1a is reduced and liquid cooling is turned off to avoid resource waste, forming an efficient heat dissipation logic closed loop and solving the problem of poor adaptability of traditional heat dissipation methods.

[0061] Please see Figures 1 to 11 The end of the housing 1 away from the bottom plate 5 is provided with a storage chamber 1d. The storage chamber 1d and the heat dissipation cavity 1a are connected by a drain pipe 12. The drain pipe 12 is provided with a valve body. Step S200 includes: The liquid level of the liquid cooling medium in the cooling box 10 is detected. If the liquid level does not meet the preset liquid level condition, the control valve is opened. The depth of the condenser tube 4 immersed in the liquid cooling medium is detected. If the depth does not meet the preset depth condition, the cooling box 10 is controlled to move closer to the housing 1.

[0062] In this embodiment, the valve body on the drain pipe 12 can be a common valve such as a solenoid valve or a solenoid ball valve. Relying on the valve body on the drain pipe 12 and the liquid level sensor in the cooling box 10, the real-time liquid level of the liquid cooling medium in the cooling box 10 is detected. The preset liquid level condition is the minimum liquid level threshold required to ensure that the condenser tube 4 is submerged. If the detected liquid level of the liquid cooling medium in the cooling box 10 is lower than the threshold, that is, the preset liquid level condition is not met, the controller sends a signal to control the valve body to open, so that the condensate collected in the storage chamber 1d flows into the cooling box 10 through the drain pipe 12 until the liquid level reaches the preset threshold and then controls the valve body to close. Subsequently, the immersion depth of the condenser tube 4 in the liquid cooling medium is indirectly detected by a displacement sensor or a liquid level sensor. Once the liquid level reaches the target, the height of the cooling box 10 is positively correlated with the immersion depth. The preset depth condition is the minimum immersion depth required for effective heat exchange of the condenser tube 4. If the immersion depth of the condenser tube 4 in the liquid cooling medium does not reach this threshold, i.e., the preset depth condition is not met, the controller drives the sliding of the cooling box 10, controlling the cooling box 10 to move closer to the housing 1, simultaneously causing the liquid level of the liquid cooling medium to rise until the immersion depth of the condenser tube 4 meets the preset condition. At the same time, the controller drives the transmission component 6 to move the housing 1 away from the base plate 5, increasing the volume of the heat dissipation cavity 1a to widen the air intake channel and ensure airflow for composite heat dissipation. Liquid level detection and depth detection can be performed simultaneously, and the valve opening and closing and the movement of the cooling box 10 are coordinated through a correlation algorithm to improve adjustment efficiency.

[0063] The linkage design between liquid level detection and valve opening and closing ensures sufficient liquid cooling medium in the cooling box 10, preventing the condenser tube 4 from being ineffectively submerged due to insufficient liquid level. This ensures stable startup of the combined air-cooling and liquid-cooling heat dissipation mode. Simultaneously, relying on the condensate replenishment in the storage chamber 1d, resource recycling is achieved, eliminating the need for additional coolant and reducing operating costs. Precise control of the immersion depth ensures the condenser tube 4 is always at the optimal heat exchange depth, guaranteeing liquid cooling heat exchange efficiency while avoiding energy waste due to excessive immersion. Combined with the increased volume of the heat dissipation cavity 1a due to the cabinet 1 being further away from the bottom plate 5, synergistic enhancement of liquid and air cooling is achieved, significantly improving the heat dissipation effect of the target installation cavity. Collaborative adjustment further improves adjustment efficiency and safety, preventing component damage and effectively solving the problems of insufficient liquid cooling medium and inadequate heat exchange in traditional heat dissipation regulation, ensuring stable and efficient operation of the refrigerator under complex conditions.

[0064] Please see Figures 1 to 11 The condenser 2 is equipped with a fan 8 and a bracket 9 in its mounting cavity. The bracket 9 is connected to the housing 1. The fan 8 is movably mounted on the bracket 9 and is located at the end of the condenser 2 away from the base plate 5. After step S100, the following is also included: If the target mounting cavity is the mounting cavity corresponding to condenser 2; Once the temperature in the target mounting cavity reaches the preset temperature condition, determine the location within the target mounting cavity where the preset temperature condition has been reached. Control the fan 8 to rotate and move it toward the target installation cavity to reach the preset temperature condition.

[0065] In one embodiment, after determining the target mounting cavity among at least two mounting cavities, it is determined whether the target mounting cavity is the mounting cavity corresponding to the condenser 2, i.e., the first mounting cavity 11a. If it is determined to be the target mounting cavity, temperature data at different locations within the cavity is collected in real time using multiple temperature sensors arranged within the target mounting cavity, such as temperature detection points evenly arranged along the width of the refrigerator. The area where the temperature reaches the preset temperature condition (i.e., higher than the heat dissipation trigger threshold) is locked as the target temperature area. Subsequently, the controller sends a drive signal to the fan 8 to control the fan 8 to start rotating. Based on the position information of the target temperature area, the controller controls the relative movement of the movable part 81 of the fan 8 and the mating part 91 of the bracket 9 to adjust the airflow direction of the fan 8, so that the airflow is precisely directed towards the target temperature area. The correspondence between the airflow angle of the fan 8 and the temperature detection point can be preset. By identifying the detection point to which the target temperature area belongs, the preset angle parameter can be directly called to achieve rapid adjustment; or a fan speed adjustment logic can be added to synchronously adjust the fan speed according to the temperature difference between the target temperature area and the preset threshold to enhance the heat dissipation effect.

[0066] This embodiment achieves precise directional heat dissipation for the mounting cavity corresponding to the condenser 2 through precise control of the fan 8's direction and targeted heat dissipation of the target area. This avoids indiscriminate airflow diffusion from the fan 8, concentrating airflow on high-temperature areas and significantly improving heat dissipation efficiency. It solves the problems of uneven heat dissipation coverage and localized high-temperature accumulation caused by traditional fixed-direction fans 8. The linkage control of the fan 8's rotation and direction adjustment, combined with the previous adjustments such as lifting and lowering of the cabinet 1 and liquid cooling switching, forms a multi-dimensional collaborative heat dissipation mode of directional air cooling, liquid cooling, and optimized airflow. This further enhances the heat dissipation from the target mounting cavity, ensuring the efficient operation of the condenser 2 and thus improving the overall cooling performance of the refrigerator. Furthermore, through preset angle correspondence and wind speed linkage design, the accuracy and efficiency of adjustment are further improved, avoiding energy waste caused by frequent adjustments, while reducing wear and tear on core components due to localized high temperatures and extending the refrigerator's service life.

[0067] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0068] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0069] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A base plate adjustment mechanism, characterized in that, include: The housing (1) has an installation cavity inside; A condenser (2) is disposed in the mounting cavity; The compressor (3) is connected to the condenser (2) via a condenser pipe (4) and is located in the mounting cavity; The base plate (5) is movably connected to the box body (1), and the base plate (5) and the box body (1) enclose a heat dissipation cavity (1a), and the condenser pipe (4) is located in the heat dissipation cavity (1a); The transmission assembly (6) includes a first transmission member (61) and a second transmission member (62). The first transmission member (61) is rotatably disposed on the housing (1), and the second transmission member (62) is disposed on the bottom plate (5). The first transmission member (61) cooperates with the second transmission member (62). The first transmission member (61) can drive the second transmission member (62) to move, thereby driving the housing (1) to move closer to or away from the bottom plate (5), so that the volume of the heat dissipation cavity (1a) is reduced or increased.

2. The base plate adjustment mechanism according to claim 1, characterized in that, The mounting cavity is located at one end of the housing (1) near the bottom plate (5). The housing (1) has a first heat dissipation hole (1b) and a second heat dissipation hole (1c). The first heat dissipation hole (1b) connects the heat dissipation cavity (1a) and the mounting cavity, and the second heat dissipation hole (1c) connects the mounting cavity to the outside. The bottom plate (5) has a third heat dissipation hole (5a) that connects the heat dissipation cavity (1a) to the outside.

3. The base plate adjustment mechanism according to claim 2, characterized in that, The mounting cavity is provided with an isolation member (7), which divides the mounting cavity into a first mounting cavity (11a) and a second mounting cavity (11b) that are spaced apart. The condenser (2) is located in the first mounting cavity (11a), and the compressor (3) is located in the second mounting cavity (11b).

4. The base plate adjustment mechanism according to claim 3, characterized in that, The first mounting cavity (11a) is provided with a fan (8) and a bracket (9). The bracket (9) is connected to the housing (1). The fan (8) is movably mounted on the bracket (9). The fan (8) is located at the end of the condenser (2) away from the base plate (5).

5. The base plate adjustment mechanism according to claim 4, characterized in that, The fan (8) is provided with a movable part (81), and the bracket (9) is provided with a mating part (91). The movable part (81) is movably disposed on the mating part (91) to adjust the blowing direction of the fan (8).

6. The base plate adjustment mechanism according to any one of claims 1-5, characterized in that, The heat dissipation cavity (1a) is provided with a cooling box (10), which is used to contain liquid cooling medium. The cooling box (10) is slidably disposed on the housing (1) so that the condenser tube (4) is immersed in or exposed in the liquid cooling medium of the cooling box (10).

7. The base plate adjustment mechanism according to claim 6, characterized in that, The box (1) has a storage chamber (1d) at one end away from the bottom plate (5). The storage chamber (1d) and the heat dissipation cavity (1a) are connected by a drain pipe (12). The drain pipe (12) can guide the condensate in the storage chamber (1d) to the cooling box (10).

8. The base plate adjustment mechanism according to any one of claims 1-5, characterized in that, The first transmission component (61) is a gear, and the second transmission component (62) is a rack, wherein the gear meshes with the rack.

9. The base plate adjustment mechanism according to any one of claims 1-5, characterized in that, The bottom plate (5) is provided with a support member (51) at the end away from the box body (1).

10. A refrigerator, characterized in that, Includes the base plate adjustment mechanism as described in any one of claims 1-9.

11. A heat dissipation method applied to the refrigerator of claim 10, wherein the base plate adjustment mechanism includes a cooling box (10) and at least two mounting cavities, the compressor (3) and the condenser (2) are respectively disposed in one of the mounting cavities, and the cooling box (10) is slidably disposed on the cabinet (1) so that the condenser pipe (4) is immersed in or exposed in the liquid cooling medium within the cooling box (10), characterized in that, Includes the following steps: Determine the target mounting cavity from at least two mounting cavities; When the temperature of the target mounting cavity reaches the preset temperature condition, the box (1) is controlled to move away from the base plate (5), and the cooling box (10) is controlled to move closer to the box (1), so that the condenser tube (4) is immersed in the liquid cooling medium in the cooling box (10); Determine whether the temperature of the target mounting cavity meets the preset temperature condition; If the temperature is lower than the preset temperature, control the housing (1) to move closer to the bottom plate (5) and control the cooling box (10) to move away from the housing (1).

12. The heat dissipation method according to claim 11, wherein a storage chamber (1d) is provided at one end of the housing (1) away from the bottom plate (5), the storage chamber (1d) and the heat dissipation cavity (1a) are connected by a drain pipe (12), the drain pipe (12) being provided with a valve body, characterized in that, When the temperature in the target mounting cavity reaches a preset temperature condition, the housing (1) is controlled to move away from the base plate (5), and the cooling box (10) is controlled to move closer to the housing (1), so that the condenser tube (4) is immersed in the liquid cooling medium in the cooling box (10), including: The liquid level of the liquid cooling medium in the cooling box (10) is detected. If the liquid level does not meet the preset liquid level condition, the valve body is controlled to open. The depth to which the condenser tube (4) is immersed in the liquid cooling medium is detected. If the depth does not meet the preset depth condition, the cooling box (10) is controlled to move closer to the housing (1).

13. The heat dissipation method according to claim 11, wherein a fan (8) and a bracket (9) are provided in the mounting cavity corresponding to the condenser (2), the bracket (9) is connected to the housing (1), the fan (8) is movably disposed on the bracket (9), and the fan (8) is located at the end of the condenser (2) away from the base plate (5), characterized in that, After determining the target mounting cavity in at least two mounting cavities, the process includes: If the target mounting cavity is the mounting cavity corresponding to the condenser (2); Once the temperature in the target mounting cavity reaches a preset temperature condition, determine the location within the target mounting cavity where the preset temperature condition has been reached. Control the fan (8) to rotate and move towards the target mounting cavity to reach the preset temperature condition.

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