Variable-air-volume heat dissipation structure of embedded refrigerator, control method of variable-air-volume heat dissipation structure and refrigerator

Abstract

The invention relates to the technical field of refrigerator heat dissipation structures, and discloses an embedded type refrigerator variable air volume heat dissipation structure, a control method thereof and a refrigerator, the embedded type refrigerator variable air volume heat dissipation structure comprises a refrigerator bottom plate, rolling wheels, a shell, a condensation fan, an air inlet, an air outlet and a notch, the shell is installed on the refrigerator bottom plate, the shell and the bottom plate define a containing bin, and the condensation fan is arranged in the containing bin; the air inlet and the air outlet are formed in the front side wall of the shell side by side and communicated with the outside through the notches in the bottom plate of the refrigerator, and the heat dissipation mode of bottom air inlet and bottom air outlet is achieved. A containing bin is defined by a shell and a refrigerator bottom plate, double cavities internally provided with a condenser and a compressor are separated through a cooling fan, and an independent cooling system with bottom air inlet and bottom air outlet is constructed in cooperation with an air inlet, an air outlet and a bottom plate notch which are formed in the front side wall of the shell side by side. No bottom special channel needs to be additionally arranged, the overall height of the refrigerator is effectively reduced, and the kitchen vertical space utilization rate and the cabinet adaptability are improved.

Description

Technical Field

[0001] This invention relates to the field of refrigerator heat dissipation structure technology, specifically to an embedded refrigerator variable air volume heat dissipation structure, its control method, and the refrigerator itself. Background Technology

[0002] In recent years, with the popularization of integrated and customized kitchen decoration concepts, consumers have continuously increased their requirements for the aesthetics and space utilization of their home spaces. Built-in refrigerators have seen rapid growth in market demand because they can form an overall visual effect with cabinets and save space.

[0003] However, existing built-in refrigerators have significant drawbacks in their cooling duct design: to achieve independent heat dissipation, most models add a dedicated channel at the bottom of the refrigerator body, with the air inlet located at the front end of the channel (i.e., the front surface of the refrigerator), achieving heat exchange through "bottom air intake + top / back air exhaust." For example, invention patent CN105222455B discloses an "built-in refrigerator" with an air duct at the bottom of the body and an air inlet located at the front end of the duct for air intake. While this design meets the heat dissipation requirements, the addition of the bottom channel directly increases the overall height of the refrigerator, reducing the utilization rate of vertical space in the kitchen.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a variable air volume heat dissipation structure for an embedded refrigerator, its control method and the refrigerator, which aims to solve the problem that the existing embedded refrigerators increase the overall height of the refrigerator and reduce the utilization rate of vertical space in the kitchen by setting air ducts at the bottom.

[0006] The technical solution adopted by this invention to solve the technical problem is as follows: An embedded refrigerator with a variable airflow heat dissipation structure includes a refrigerator base plate and casters disposed at the bottom of the refrigerator base plate, and further includes: The shell is disposed on the bottom plate of the refrigerator and forms a receiving compartment with the bottom plate of the refrigerator; A condenser fan is installed inside the receiving chamber, which divides the receiving chamber into a first receiving cavity and a second receiving cavity; a condenser is installed in the first receiving cavity, and a compressor is installed in the second receiving cavity; An air inlet is located on the front sidewall of the housing; An air outlet is located on the front side wall of the housing; the air inlet and the air outlet are arranged side by side. A slot is provided on the bottom plate of the refrigerator to connect the air inlet and the air outlet to the outside through the slot.

[0007] Furthermore, it also includes: Two arc-shaped guide plates are disposed on the front side wall of the housing; the arc-shaped guide plates cooperate with the side wall of the housing to form a guide channel, and the two guide channels respectively connect the air inlet to the slot and the air outlet to the slot.

[0008] Furthermore, it also includes: Two opening adjustment components are disposed on the housing for adjusting the opening degree of the air inlet and the air outlet.

[0009] Furthermore, the opening adjustment assembly includes: A rotating plate is rotatably mounted on the housing. A driving component is disposed on the housing; the driving component cooperates with the rotating plate to drive the rotating plate to rotate.

[0010] Furthermore, the interior of the receiving chamber is provided with a partition, and a through hole is provided in the middle of the partition, with the condenser fan disposed in the through hole.

[0011] Furthermore, ventilation holes are provided on both the left and right walls of the container.

[0012] Furthermore, dustproof nets are installed inside both the vent holes and the slots.

[0013] A control method for the variable air volume heat dissipation structure of an embedded refrigerator, based on the aforementioned variable air volume heat dissipation structure of an embedded refrigerator, includes: Preset ambient temperature threshold; The real-time ambient temperature of the refrigerator is obtained and compared with the preset ambient temperature threshold. Based on the comparison results, the opening of the air inlet and the air outlet can be increased or decreased to improve heat dissipation efficiency.

[0014] Furthermore, controlling the opening of the air inlet and the air outlet to improve heat dissipation efficiency based on the comparison results includes: When the real-time ambient temperature is greater than the preset ambient temperature threshold, the opening of the air inlet is reduced and the opening of the air outlet is increased. When the real-time ambient temperature is lower than the preset ambient temperature threshold, the opening of the air inlet is increased and the opening of the air outlet is decreased.

[0015] A refrigerator includes the aforementioned built-in refrigerator variable air volume heat dissipation structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are: In this invention, a housing compartment is formed by the shell and the refrigerator base plate. A cooling fan separates the built-in condenser and compressor into two chambers. Combined with the air inlet and outlet on the front side wall of the shell and the groove in the base plate, an independent cooling system with bottom air intake and exhaust is constructed. This structure eliminates the need for a dedicated bottom channel, effectively reducing the overall height of the refrigerator and improving the utilization of vertical space in the kitchen and its compatibility with cabinets. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the air inlet and air outlet structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the shell structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the storage compartment structure of the present invention.

[0021] Figure 5 This is a flowchart of the heat dissipation structure control method of the present invention.

[0022] The numbers in the diagram represent: 1. Refrigerator bottom plate; 11. Slot; 2. Roller; 3. Shell; 31. Air inlet; 32. Air outlet; 33. Arc-shaped baffle; 4. Compartment; 41. First compartment; 42. Condenser; 43. Second compartment; 44. Compressor; 5. Condenser fan; 6. Partition; 7. Vent. Detailed Implementation

[0023] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] In view of the shortcomings of the prior art, this embodiment provides an embedded refrigerator variable air volume heat dissipation structure, its control method, and the refrigerator, as detailed below: As shown in the attached diagram, the variable airflow heat dissipation structure of the embedded refrigerator includes a refrigerator base plate 1, rollers 2, a housing 3, a condenser fan 5, an air inlet 31, an air outlet 32, and a slot 11. The refrigerator base plate 1 serves as the bottom support foundation. The rollers 2 are located at the bottom of the base plate for easy movement and space the refrigerator base plate 1 from the ground. The housing 3 is installed on the refrigerator base plate 1, forming a receiving compartment 4 with the base plate. The condenser fan 5 is placed inside the receiving compartment 4, dividing it into a first receiving cavity 41 (with a built-in condenser 42) and a second receiving cavity 43 (with a built-in compressor 44). The air inlet 31 and the air outlet 32 ​​are arranged side by side on the front side wall of the housing 3. The slot 11 on the refrigerator base plate 1 allows both to communicate with the outside, realizing a bottom-intake and bottom-out heat dissipation mode.

[0027] The refrigerator base plate 1 is made of metal and is rust-proofed. The slot 11 is a regular-shaped opening with reinforced edges to enhance structural strength. The shell 3 is an integrated molding structure made of durable engineering plastic and is sealed and fixed to the refrigerator base plate 1 to ensure no airflow leakage. The condenser fan 5 is an adjustable-speed type and is fixed to the middle of the receiving chamber 4 by a bracket to achieve directional airflow drive. The condenser 42 is a common heat dissipation structure and is placed in the first receiving chamber 41 near the air inlet 31 for condensation and heat dissipation. The compressor 44 is connected to the condenser 42 through a pipeline and is placed in the second receiving chamber 43 near the air outlet 32 ​​to provide power for the refrigeration cycle. Both the air inlet 31 and the air outlet 32 ​​are open designs, arranged side by side with reasonable spacing to ensure that the airflow does not interfere with each other. Specifically, during heat dissipation, the condenser fan 5 starts, and cold outside air enters the air inlet 31 on the front side wall of the casing 3 through the slot 11 on the bottom plate 1 of the refrigerator. It flows into the first receiving cavity 41 and exchanges heat with the condenser 42. The airflow carrying away the condensation heat passes through the condenser fan 5 and enters the second receiving cavity 43, where it undergoes a second heat exchange with the compressor 44. Finally, the airflow carrying heat is discharged to the outside through the air outlet 32 ​​and the slot 11, forming a complete closed-loop airflow of "air inlet - condensation heat dissipation - compression heat dissipation - air outlet". The bottom air inlet and outlet design ensures that the airflow does not rely on the gaps on the sides or back of the refrigerator, so that even if the sides are blocked when the refrigerator is embedded in a cabinet, it can still ensure smooth heat dissipation.

[0028] Compared to existing technologies, traditional built-in refrigerators require a dedicated air duct at the bottom, increasing the overall height and reducing vertical space utilization. Some models use a "bottom intake + top exhaust" design, which is easily blocked by the top of the cabinet, affecting heat dissipation efficiency. This solution eliminates the independent air duct, integrating heat dissipation components into the housing 4 enclosed by the shell 3 and the base plate, effectively reducing the overall height and improving space utilization. The side-by-side bottom air intake and exhaust vents 32 avoid the impact of blockage on both sides, resulting in more stable heat dissipation efficiency and a more compact structure.

[0029] Through the above technical solutions, this application achieves efficient and compact heat dissipation for embedded refrigerators: the bottom air intake and exhaust mode completely eliminates the dependence on the gaps on the sides / back, and can avoid heat dissipation blockage even when embedded in a small cabinet, perfectly adapting to the needs of integrated decoration; the elimination of the bottom dedicated channel significantly reduces the height of the refrigerator, improves the utilization rate of vertical space in the kitchen, and has a stronger adaptability to the height of the cabinet; the condenser fan 5's dual-chamber design ensures that the heat dissipation of the condenser 42 and the compressor 44 does not interfere with each other, resulting in better heat exchange efficiency; the overall structure has a high degree of integration, simplifies the installation process, controls manufacturing costs, and adapts to a variety of embedded usage scenarios.

[0030] In this embodiment, the variable air volume heat dissipation structure of the embedded refrigerator also includes two arc-shaped guide plates 33. The arc-shaped guide plates 33 are disposed on the front side wall of the housing 3 and form a guide channel with the side wall of the housing 3. They connect the air inlet 31 with the slot 11 and the air outlet 32 ​​with the slot 11 respectively, guide the airflow to flow in a specific direction, and improve the heat dissipation efficiency.

[0031] Among them, the arc-shaped guide plate 33 is an integrated molding structure, and the material is the same as that of the shell 3. The surface is smooth to reduce airflow resistance. The arc-shaped guide plate 33 is fixed to the front side wall of the shell 3 by a buckle or the arc-shaped guide plate 33 is integrally molded with the shell 3. The angle design is reasonable to ensure that the airflow flows smoothly along the arc surface and avoids the generation of eddies. One end of the two guide channels corresponds to the air inlet 31 and the air outlet 32 ​​respectively, and the other end corresponds to the slot 11. The cross-sectional area of ​​the channel matches the area of ​​the air inlet and the air outlet 32 ​​to ensure smooth airflow and no obvious pressure loss.

[0032] Specifically, after entering through slot 11, cold outside air flows directionally into inlet 31 along the arc-shaped guide channel corresponding to inlet 31. The arc-shaped structure of the guide plate ensures uniform airflow speed, preventing insufficient heat exchange caused by airflow diffusion. When the cooled hot air is discharged from outlet 32, it is guided by another arc-shaped guide plate 33 and smoothly passes through slot 11 to the outside along the guide channel, reducing airflow backflow. The closed design of the guide channel also prevents dust from directly entering the containment chamber 4, reducing the probability of dust accumulation on internal components.

[0033] Compared with existing technologies, traditional air inlets and outlets 32 without flow guide structures are prone to airflow diffusion, resulting in poor heat exchange efficiency; some simple flow guide structures are flat, which easily generate vortices, affecting the smoothness of airflow. The arc-shaped flow guide plate 33 in this solution significantly improves the directionality of airflow, further optimizes heat exchange efficiency, and enhances the stability of the heat dissipation system.

[0034] Through the above technical solutions, the arc-shaped guide plate 33 design of this application achieves multiple technical effects: directional airflow improves airflow speed and uniformity, enhances the heat exchange efficiency between the condenser 42 and the compressor 44, and indirectly reduces the refrigerator's cooling energy consumption; the arc-shaped structure reduces eddies and pressure loss, improving the overall heat dissipation capacity without changing the energy consumption of the condenser fan 5; the guide channel prevents airflow backflow and reduces maintenance frequency; the structure is simple and perfectly fits the shell 3, without increasing the overall height and volume, balancing heat dissipation performance and space adaptability.

[0035] In this embodiment, the embedded refrigerator variable air volume heat dissipation structure also includes two opening adjustment components, which are set on the housing 3 to adjust the opening of the air inlet 31 and the air outlet 32, so as to realize variable air volume control and adapt to different ambient temperatures and heat dissipation requirements.

[0036] The opening adjustment components are mechanical adjustment structures, corresponding to the air inlet 31 and the air outlet 32 ​​respectively. Each component includes an adjustment plate, a rotating shaft, and a limiting structure. The size of the adjustment plate matches the air inlet and outlet 32, and can completely cover the opening. The material is high-strength plastic to ensure durability. The adjustment plate is hinged to the housing 3 through the rotating shaft, and the rotation is smooth and without jamming. The limiting structure is set on the housing 3 to limit the rotation range of the adjustment plate and avoid excessive rotation that could cause structural damage.

[0037] Specifically, when the ambient temperature is high, the adjustment component increases the opening of the air outlet (32) and decreases the opening of the air inlet (31); when the ambient temperature is low, the opening of the air inlet (31) is increased and the opening of the air outlet (32) is decreased to reduce the energy consumption of the condenser fan (5); when the refrigerator is operating under low load, the opening can be further reduced to achieve energy-saving operation. The adjustment operation can be completed manually or automatically by the linkage controller to adapt to different usage scenarios.

[0038] Compared to existing technologies, traditional fixed-opening air inlets and outlets cannot adapt to changes in ambient temperature, resulting in insufficient heat dissipation at high temperatures and energy waste at low temperatures. Some adjustable structures have cumbersome adjustment methods and cannot achieve stepless adjustment. The opening adjustment component of this solution enables stepless adjustment of the opening, allowing the air volume to be flexibly changed according to needs. It ensures heat dissipation at high temperatures, reduces energy consumption at low temperatures, and greatly improves the ease of operation.

[0039] Through the above technical solutions, the opening adjustment component design of this application achieves multiple technical effects: variable air volume control adapts to different ambient temperatures and operating loads, enabling the refrigerator to operate stably in various temperature environments, significantly improving adaptability; maximum air volume ensures heat dissipation at high temperatures, while reduced air volume lowers energy consumption at low temperatures, achieving overall energy saving; stepless adjustment makes air volume control more precise, helping to maintain stable internal temperature of the refrigerator and improve food preservation; compact structure does not occupy extra space and does not affect the core advantages of bottom air intake and exhaust, balancing flexibility and practicality.

[0040] In this embodiment, the opening adjustment component includes a rotating plate and a driving component. The rotating plate is rotatably mounted on the housing 3, and the driving component is installed on the housing 3 and cooperates with the rotating plate to drive the rotating plate to rotate and adjust the opening degree, thereby realizing automated air volume control.

[0041] The rotating plate is a plate body that matches the shape of the air inlet and outlet 32. It is made of high-strength plastic and the edges are sealed to prevent air leakage. The rotating plate is hinged to the housing 3 through a rotating shaft. The end of the rotating shaft is equipped with a transmission structure that cooperates with the output end of the drive component. The drive component is a micro drive motor that is electrically connected to the refrigerator's main controller and can receive temperature signals to achieve automatic control. The motor housing is fixed to the outside of the housing 3 through a bracket and has a certain degree of waterproof and dustproof capability, making it suitable for use at the bottom of the refrigerator.

[0042] Specifically, the refrigerator's main controller collects real-time ambient temperature and internal operating status. When the ambient temperature is detected to be higher than a preset value, it sends a signal to the drive unit, which rotates the rotating plate, reducing the opening of the air inlet 31 and increasing the opening of the air outlet 32. When the ambient temperature is lower than the preset value, the drive unit rotates the rotating plate in the opposite direction, reducing the opening of the air outlet 32 ​​and increasing the opening of the air inlet 31. When the refrigerator is stopped or running at low load, the rotating plate closes to its minimum opening, maintaining only basic ventilation. The entire adjustment process is responsive and precise in opening control, achieving automated and intelligent airflow regulation.

[0043] Through the above technical solutions, the opening adjustment component (rotating plate + driving component) of this application achieves multiple technical effects: automatic and precise adjustment of the opening degree, real-time adaptation to ambient temperature and operating load, so that the refrigerator's heat dissipation efficiency and energy consumption reach a dynamic balance, further improving energy-saving effect; the drive motor ensures smooth and high-precision adjustment, avoids heat dissipation fluctuations caused by sudden changes in opening degree, and ensures the stability of the refrigerator's internal temperature; the waterproof and dustproof design is suitable for humid environments at the bottom, extends the component's service life, and improves reliability; and it is linked with the refrigerator's main controller to achieve intelligent control, meeting the needs of modern homes for smart appliances and enhancing product competitiveness.

[0044] In this embodiment, the interior of the receiving chamber 4 is provided with a partition 6, and the partition 6 has a through hole in the middle. The condenser fan 5 is installed in the through hole. The partition 6 realizes the physical separation of the two chambers and ensures smooth airflow.

[0045] The partition 6 is made of metal with a moderate thickness and is sealed and fixed to the inner wall of the housing 3 to ensure that the airflow does not leak. The shape of the through hole on the partition 6 matches the condenser fan 5, and the edges are chamfered to avoid scratching the fan. An installation structure is provided around the through hole, which is fixed to the bracket of the condenser fan 5 with bolts to ensure that there is no obvious vibration when the fan is running. The partition 6 strictly divides the housing 4 into an independent first housing chamber 41 (condenser 42 chamber) and a second housing chamber 43 (compressor 44 chamber) to prevent the airflow of the two chambers from mixing and causing a decrease in heat exchange efficiency.

[0046] Specifically, the condenser fan 5 is fixed within the through hole of the partition 6, with the fan inlet facing the first receiving cavity 41 and the outlet facing the second receiving cavity 43. Upon startup, the fan generates negative pressure, drawing in the cold air from the first receiving cavity 41 after heat exchange with the condenser 42, pressurizing it, and blowing it into the second receiving cavity 43 for heat exchange with the compressor 44, forming a directional airflow channel. The partition 6 prevents the heat discharged from the condenser 42 from flowing back to the compressor 44, ensuring efficient heat exchange; simultaneously, the physical separation reduces the impact of compressor 44 vibration on the condenser 42, extending the service life of the components.

[0047] Through the above technical solutions, the partition 6 design of this application achieves multiple technical effects: it physically separates the first and second receiving cavities 43, preventing the mixing of the heat dissipation airflow of the condenser 42 and the compressor 44, ensuring heat exchange efficiency and improving the refrigerator's cooling speed; the through hole in the middle of the partition 6 precisely positions the condenser fan 5, reducing operating vibration and noise, and improving the user experience; the metal partition 6 also has an auxiliary heat dissipation function, absorbing some of the heat from the components and conducting it to the airflow, further improving heat dissipation capacity; it has high structural strength, can withstand the vibration of the compressor 44 during operation, enhances the overall structural stability, and is suitable for the long-term stable operation requirements of embedded refrigerators.

[0048] In this embodiment, ventilation holes 7 are provided on both the left and right sides of the receiving chamber 4 to enhance the airflow inside the receiving chamber 4, form an auxiliary heat dissipation channel, and improve the overall heat dissipation effect.

[0049] Among them, the ventilation holes 7 are arrayed openings, evenly distributed in the lower middle part of the side wall, with sufficient total ventilation area to ensure smooth airflow; the hole walls are smoothed to avoid excessive airflow resistance; the ventilation holes 7 are connected to the interior of the receiving chamber 4, the ventilation holes 7 on the left side wall correspond to the first receiving chamber 41, and the ventilation holes 7 on the right side wall correspond to the second receiving chamber 43, forming left and right auxiliary airflow channels.

[0050] Specifically, when the condenser fan 5 is running, after the airflow in the first receiving cavity 41 exchanges heat with the condenser 42, some of the airflow can form a local circulation through the vent 7 on the left side wall, enhancing the airflow disturbance around the condenser 42 and preventing local heat accumulation. The airflow in the second receiving cavity 43, after the compressor 44 dissipates heat, can release some of the heat through the vent 7 on the right side wall, reducing the airflow pressure at the air outlet 32. When ventilation at the inlet and outlet 32 ​​is obstructed due to special circumstances, the vent 7 can serve as a backup air duct, ensuring uninterrupted heat dissipation and guaranteeing the normal operation of the refrigerator.

[0051] Compared with existing technologies, traditional compartments without vents 7 have poor airflow, leading to localized heat accumulation and affecting heat dissipation efficiency; some models only have vents 7 on one side, which has limited auxiliary heat dissipation effect. The dual-sided vent design of this solution enhances airflow disturbance inside the compartment 4, effectively eliminating localized heat accumulation, improving heat dissipation efficiency, and the backup air duct function significantly improves the reliability of refrigerator heat dissipation.

[0052] Through the above technical solutions, the vent 7 design of this application achieves multiple technical effects: the dual-sided vent 7 enhances the airflow inside the housing 4, avoids local heat accumulation, makes the condenser 42 and compressor 44 heat dissipation more uniform, and improves heat exchange efficiency; the backup air duct function ensures that heat dissipation is not interrupted under extreme conditions, improves the stability of refrigerator operation, and is suitable for complex embedded installation environments; the vent 7 array design does not affect the structural strength of the shell 3, and can block the entry of large particles of impurities, taking into account both heat dissipation and protection; no additional heat dissipation components are required, performance is improved only through structural optimization, the cost is controllable, and it is suitable for mass production.

[0053] In this embodiment, both the vent 7 and the slot 11 are equipped with dustproof nets to filter dust, hair and other impurities in the air and prevent them from entering the containment chamber 4 and contaminating core components such as the condenser 42 and the compressor 44.

[0054] The dust filter is made of durable nylon or stainless steel with a reasonable mesh size and excellent filtration effect, effectively blocking large particles such as dust and hair. The dust filter is fixed to the inside of the vent 7 and the inside of the slot 11 by buckles or pressure strips, making it easy to disassemble and clean regularly. The edges of the dust filter are sealed to fit tightly to the installation surface, preventing impurities from entering through gaps. The material has good corrosion resistance, is suitable for the humid environment at the bottom of the refrigerator, and has a long service life.

[0055] Specifically, when outside air enters through slot 11, it is first filtered by the dust filter inside slot 11, removing most of the dust and hair. When the airflow enters and exits through vent 7, the dust filter inside vent 7 further filters out fine impurities. This dual filtration ensures high cleanliness of the airflow entering the containment chamber 4. Regularly cleaning the dust filter can maintain the filtration effect and prevent impurities from adhering to the fins of condenser 42 or the surface of compressor 44, which would lead to a decrease in heat dissipation efficiency.

[0056] Through the above technical solutions, the dustproof mesh design of this application achieves multiple technical effects: dual filtration effectively blocks impurities from entering, protecting core components such as the condenser 42 and compressor 44, preventing a decrease in heat dissipation efficiency, and ensuring stable energy consumption during long-term refrigerator operation; the detachable design facilitates cleaning, improves maintenance convenience, and reduces user operating costs; the dustproof mesh material is moisture-resistant and corrosion-resistant, adaptable to the environment at the bottom of the refrigerator, and has a long service life; it does not affect airflow, ensuring that heat dissipation performance is not affected while guaranteeing the filtration effect, thus balancing protection and practicality.

[0057] As shown in the attached figure, this application also proposes a control method for an embedded refrigerator variable air volume heat dissipation structure, which, based on the above-mentioned embedded refrigerator variable air volume heat dissipation structure, includes the following steps: Step S100: Preset ambient temperature threshold; Step S200: Obtain the real-time ambient temperature of the refrigerator and compare the real-time ambient temperature with the preset ambient temperature threshold. Step S300: Based on the comparison results, control the opening of the air inlet and the air outlet to increase or decrease, so as to improve heat dissipation efficiency.

[0058] By preset temperature and opening parameters, collecting and comparing real-time ambient temperature, the opening of air inlet 31 and air outlet 32 ​​is controlled to achieve dynamic adjustment of air volume and adapt to different heat dissipation needs.

[0059] The preset parameters include an ambient temperature threshold, which can be manually adjusted via the refrigerator control panel or set by the system default. Temperature acquisition is achieved through an ambient temperature sensor at the bottom of the refrigerator, ensuring high measurement accuracy. Comparison and control are performed by the refrigerator's main controller, which responds quickly and automatically sends adjustment signals to the drive components based on temperature deviations. The rotational speed of the condenser fan 5 is positively correlated with changes in ambient temperature; when the ambient temperature rises, the rotational speed of the condenser fan 5 increases accordingly, and when the ambient temperature decreases, the rotational speed of the condenser fan 5 decreases accordingly.

[0060] Specifically, the system defaults to a preset ambient temperature threshold before use, or users can customize the setting according to their environment. During operation, the temperature sensor collects the ambient temperature at the bottom of the refrigerator in real time and sends it to the main controller for comparison with the preset ambient temperature threshold. If the real-time temperature is higher than the preset ambient temperature threshold, the controller controls the drive to increase the opening of the air outlet 32 ​​and maintain an appropriate opening of the air inlet 31 to increase the heat dissipation airflow. If the real-time temperature is lower than the preset ambient temperature threshold, the opening of the air inlet 31 is increased and the opening of the air outlet 32 ​​is decreased to reduce the airflow and energy consumption. If the temperature is between the thresholds, the opening is maintained at an intermediate level to balance heat dissipation and energy saving.

[0061] Compared to existing technologies, traditional fixed airflow control methods cannot adapt to temperature changes, resulting in insufficient heat dissipation at high temperatures and energy waste at low temperatures, exhibiting poor temperature adaptability. Some segmented control methods only offer a limited number of settings, leading to low adjustment precision. This solution's dynamic adjustment method significantly expands the temperature adaptability range, improves adjustment precision, ensures effective heat dissipation at high temperatures, reduces energy consumption at low temperatures, and provides stronger adaptability.

[0062] Through the above technical solutions, the control method of this application achieves multiple technical effects: dynamically adjusting the 32° opening of the air inlet and outlet allows for precise matching of heat dissipation airflow with ambient temperature, enabling the refrigerator to operate stably under different temperature conditions and significantly improving temperature adaptability; precise control reduces ineffective heat dissipation, improving the overall energy-saving effect of the machine, which is in line with the development trend of green home appliances; automated control requires no manual intervention, providing a good user experience and adapting to smart home scenarios; the adjustment logic is simple and reliable, the controller has a low computational load, and strong synergy with the hardware structure, ensuring stable operation of the heat dissipation system and extending the service life of components.

[0063] Specifically, in one implementation of this embodiment, step S300 includes the following steps: Step S310: When the real-time ambient temperature is greater than the preset ambient temperature threshold, reduce the opening of the air inlet and increase the opening of the air outlet. Step S320: When the real-time ambient temperature is less than the preset ambient temperature threshold, increase the opening of the air inlet and decrease the opening of the air outlet.

[0064] In the control method of this application, based on the comparison result between the real-time ambient temperature and the preset ambient temperature threshold, the air volume is precisely adjusted and the heat dissipation efficiency and energy consumption balance are optimized by "reducing the opening of the air inlet 31 and increasing the opening of the air outlet 32 ​​when the temperature is high, and increasing the opening of the air inlet 31 and reducing the opening of the air outlet 32 ​​when the temperature is low".

[0065] In high-temperature conditions, the condenser 42 and compressor 44 have high heat dissipation requirements and need to quickly dissipate heat. The controller controls the drive unit to adjust the air inlet 31 to a suitable opening to prevent high-temperature air from entering and causing a sudden rise in the surface temperature of the condenser 42. At the same time, reducing the opening of the air inlet 31 can reduce the load on the condenser fan 5. Meanwhile, the air outlet 32 ​​is adjusted to the maximum opening to reduce the air outlet resistance, increase the hot air discharge speed, reduce the back pressure of the compressor compartment, and improve the effective working efficiency of the fan.

[0066] Under low temperature conditions, the heat dissipation demand is low, and energy saving should be prioritized: the controller controls the drive to adjust the air inlet 31 to the maximum opening, introduce an appropriate amount of low temperature air, balance the temperature of the condenser 42, and avoid excessive heat dissipation leading to a decrease in cooling efficiency; the opening of the air outlet 32 ​​valve is appropriately reduced to maintain stable pressure in the compressor 44 compartment and reduce cold loss.

[0067] Furthermore, after the refrigerator has been running for a long time, the start-up time of the compressor 44 is checked. When the compressor 44 runs continuously for more than 6 hours, the opening of the air inlet valve 31 is appropriately reduced and the opening of the air outlet valve 32 is increased to improve its heat dissipation efficiency and reduce power consumption.

[0068] This application also proposes a refrigerator, including the aforementioned embedded refrigerator variable air volume heat dissipation structure.

[0069] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

Claims

1. An embedded refrigerator variable airflow heat dissipation structure, comprising a refrigerator base plate and rollers disposed at the bottom of the refrigerator base plate, characterized in that, Also includes: The shell is disposed on the bottom plate of the refrigerator and forms a receiving compartment with the bottom plate of the refrigerator; A condenser fan is installed inside the receiving chamber, which divides the receiving chamber into a first receiving cavity and a second receiving cavity; a condenser is installed in the first receiving cavity, and a compressor is installed in the second receiving cavity; An air inlet is located on the front sidewall of the housing; An air outlet is located on the front side wall of the housing; the air inlet and the air outlet are arranged side by side. A slot is provided on the bottom plate of the refrigerator to connect the air inlet and the air outlet to the outside through the slot.

2. The embedded refrigerator variable airflow heat dissipation structure according to claim 1, characterized in that, It also includes: Two arc-shaped guide plates are disposed on the front side wall of the housing; the arc-shaped guide plates cooperate with the side wall of the housing to form a guide channel, and the two guide channels respectively connect the air inlet to the slot and the air outlet to the slot.

3. The embedded refrigerator variable airflow heat dissipation structure according to claim 1, characterized in that, It also includes: Two opening adjustment components are disposed on the housing for adjusting the opening degree of the air inlet and the air outlet.

4. The embedded refrigerator variable airflow heat dissipation structure according to claim 3, characterized in that, The opening adjustment component includes: A rotating plate is rotatably mounted on the housing. A driving component is disposed on the housing; the driving component cooperates with the rotating plate to drive the rotating plate to rotate.

5. The embedded refrigerator variable airflow heat dissipation structure according to claim 1, characterized in that, The interior of the container is provided with a partition, and a through hole is provided in the middle of the partition. The condenser fan is located in the through hole.

6. The embedded refrigerator variable airflow heat dissipation structure according to claim 1, characterized in that, Ventilation holes are provided on both the left and right walls of the container.

7. The embedded refrigerator variable airflow heat dissipation structure according to claim 6, characterized in that, Both the vent and the slot are equipped with dustproof nets.

8. A control method for an embedded refrigerator's variable airflow heat dissipation structure, based on the embedded refrigerator's variable airflow heat dissipation structure as described in claim 4, characterized in that... include: Preset ambient temperature threshold; The real-time ambient temperature of the refrigerator is obtained and compared with the preset ambient temperature threshold. Based on the comparison results, the opening of the air inlet and the air outlet can be increased or decreased to improve heat dissipation efficiency.

9. The control method for the embedded refrigerator variable air volume heat dissipation structure according to claim 8, characterized in that, The step of controlling the opening of the air inlet and the air outlet to increase or decrease based on the comparison results to improve heat dissipation efficiency includes: When the real-time ambient temperature is greater than the preset ambient temperature threshold, the opening of the air inlet is reduced and the opening of the air outlet is increased. When the real-time ambient temperature is lower than the preset ambient temperature threshold, the opening of the air inlet is increased and the opening of the air outlet is decreased.

10. A refrigerator, characterized in that, Includes the embedded refrigerator variable air volume heat dissipation structure as described in any one of claims 1-7.

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