Refrigerator

Abstract

The embodiment of the utility model provides a refrigerator, belongs to the technical field of household appliances, and aims to solve the technical problem of low reliability of a refrigerator liner in the related technology. The refrigerator comprises a refrigerator body, and a refrigerating chamber is formed in the refrigerator body; the refrigerator container is arranged in the refrigeration compartment; the fresh-keeping drawer is movably arranged in the refrigerator liner; when the fresh-keeping drawer is located in the refrigerator container, the fresh-keeping drawer and the refrigerator container jointly form a containing space. The mounting seat is arranged on the rear side of the refrigerator liner; the mounting seat comprises a supporting structure and a communicating structure, the supporting structure is connected with the communicating structure, the communicating structure is provided with a transition cavity, and the transition cavity is communicated with the accommodating space; the vacuum pump can be mounted in the refrigerator liner through a supporting structure; an air suction port of the vacuum pump is provided with an air suction pipe connected with the communicating structure, and the air suction port communicates with the transition cavity. The refrigerator can improve the reliability of the refrigerator liner.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to a refrigerator. Background Technology

[0002] A refrigerator is a common household appliance that keeps food or other items at a constant low temperature. A refrigerator consists of a cabinet, a vacuum pump, and a crisper drawer. The cabinet includes a liner, to which the vacuum pump is fixed. The crisper drawer is located within the liner to form a storage space for storing food. The vacuum pump is connected to the liner so that it can evacuate air from the crisper drawer, creating a negative pressure environment that extends the shelf life of food.

[0003] However, when the vacuum pump evacuates the food storage drawer, it generates a large negative pressure, which puts a lot of stress on the connection between the vacuum pump and the inner liner, resulting in lower reliability of the inner liner. Utility Model Content

[0004] This application provides a refrigerator that can solve the technical problem of low reliability of the refrigerator liner.

[0005] This application provides a refrigerator, including:

[0006] The enclosure contains a refrigeration compartment.

[0007] The liner is installed inside the refrigeration room;

[0008] The food storage drawer can be movably installed inside the inner box; when the food storage drawer is inside the inner box, the food storage drawer and the inner box together form a storage space.

[0009] The mounting base is located on the rear side of the box liner;

[0010] The mounting base includes a support structure and a connecting structure, which are connected. The connecting structure is provided with a transition cavity, which is connected to the accommodating space.

[0011] The vacuum pump can be installed in the chamber via a support structure; the vacuum pump's suction port is equipped with a suction pipe, which is connected to a connecting structure, and the suction port is connected to a transition chamber.

[0012] The refrigerator provided in this application uses a vacuum pump whose suction port draws gas from a transition chamber through a suction pipe. The gas in the transition chamber is under negative pressure, causing gas from the storage space to flow into the transition chamber, thus maintaining a negative pressure state in the storage space and extending the food's shelf life. The transition chamber can mitigate drastic changes in airflow, improving the uniformity of airflow and reducing pressure shock at the connection between the suction pipe and the refrigerator liner. This, in turn, reduces stress concentration at the connection between the suction pipe and the refrigerator liner, improving the liner's reliability.

[0013] In some embodiments of this application, the support structure includes:

[0014] The support component has a first end connected to the inner container and a second end extending toward the rear of the inner container.

[0015] The mounting component is located at the second end of the support component. The mounting component is spaced apart from the chamber and can be used to connect to a vacuum pump.

[0016] The support structure can be sized to maintain a certain distance between the fixed components and the refrigerator liner, thus preventing heat from the vacuum pump from being transferred to the liner and affecting the refrigerator's cooling performance. Furthermore, this allows the weight or force of the vacuum pump to be transferred to the liner, reducing localized stress concentration.

[0017] In some embodiments of this application, the connecting structure is disposed on the side of the mounting member facing the box liner, and the connecting structure is connected to the support member;

[0018] The end of the connecting structure away from the mounting component has an opening, through which the transition cavity can communicate with the accommodating space.

[0019] This enhances the rigidity and strength of the mounting base and ensures smooth airflow, enabling the vacuum pump to extract air from the containment space.

[0020] In some embodiments of this application, the area enclosed by the opening is larger than the cross-sectional area of ​​the airway of the inhalation tube.

[0021] This design ensures smoother airflow from the transition chamber to the suction pipe, reducing airflow resistance and potential bottleneck effects, thereby improving the vacuum pump's pumping efficiency. Furthermore, a larger opening area results in a lower airflow velocity at the opening, generating less turbulence and helping to reduce vacuum pump operating noise.

[0022] In some embodiments of this application, the mounting component is configured as a square mounting component;

[0023] The connecting structure is located at the corner of the square mounting piece. The first end of the connecting structure is connected to the inner box, and the second end of the connecting structure is connected to the square mounting piece.

[0024] The support is installed on the part of the square mounting piece that is not connected to the connecting structure, and the support is spaced apart from the connecting structure.

[0025] Square mounting brackets can provide support through a connected structure, reducing structural complexity and material usage while maintaining smooth gas flow during vacuuming. Combining connectivity and support functions into a single structure reduces structural complexity and improves the reliability of the mounting base. This also reduces material usage and lowers the cost of the enclosure.

[0026] In some embodiments of this application, a support base is also included, which is spaced apart from the mounting base, and a vacuum pump is disposed between the mounting base and the support base;

[0027] The vacuum pump is equipped with a fixing component. The first end of the fixing component is connected to the support structure, and the second end of the fixing component is connected to the support base.

[0028] This configuration, by fixing the vacuum pump to the support and mounting base, restricts its displacement during operation, helping to reduce wear and noise caused by pump vibration, thereby improving the pump's operational stability and reliability. Furthermore, by fixing the first and second ends of the assembly, the installation span of the fixing assembly can be increased, helping to distribute the forces exerted by the vacuum pump on the fixing assembly, thereby reducing localized stress concentration, preventing material fatigue and damage, and ultimately improving its stability and load-bearing capacity.

[0029] In some embodiments of this application, a first fixing member is provided at the first end of the fixing component, and a second fixing member is provided at the second end of the fixing component;

[0030] The first fastener is connected to the support structure, the second fastener is connected to the support base, and the fastening components do not contact the inner liner.

[0031] The vibration energy generated by the vacuum pump during operation is not directly transferred to the refrigerator liner, which helps reduce the alternating stress on the liner and thus protects its reliability. Furthermore, if the fixing components are in contact with the liner, heat transfer may occur, affecting the refrigerator's thermal efficiency. This design reduces heat transfer, maintains a stable internal temperature, and improves the refrigerator's efficiency. In some embodiments of this application, the support structure is provided with a first receiving groove;

[0032] The first fixing member is provided with a first damping plate, which is disposed in a first receiving groove. The surface of the first damping plate away from the bottom of the first receiving groove is connected to the first fixing member.

[0033] By absorbing vibration energy during vibration transmission using the first damping plate, the amount of vibration energy transmitted from the first fastener to the mounting base can be reduced, thereby reducing the transmission of vibration energy to the liner and other parts of the refrigerator, and thus reducing the noise generated.

[0034] In some embodiments of this application, the support base is provided with a second receiving groove;

[0035] The second fastener is provided with a second damping plate, which is disposed in the second receiving groove. The surface of the second damping plate away from the bottom of the second receiving groove is connected to the second fastener.

[0036] By absorbing vibration energy during vibration transmission with the second damping plate, the amount of vibration energy transmitted from the second fixing member to the support can be reduced, thereby reducing the transmission of vibration energy to the liner and other parts of the refrigerator, and thus reducing the noise generated.

[0037] In some embodiments of this application, the suction port and the exhaust port of the vacuum pump are located on the same side in the extending direction of the vacuum pump.

[0038] This configuration reduces the path length of airflow and lowers airflow resistance, thereby improving the efficiency of the vacuum pump. Furthermore, installing the piping connected to the intake port and the piping connected to the exhaust port on the same side improves the refrigerator's assembly efficiency. Attached Figure Description

[0039] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0040] Figure 1 This is a schematic diagram of the inner liner of the box according to an embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the structure of the inner liner inside the box according to an embodiment of this application;

[0042] Figure 3 This is a schematic diagram of the structure of the food storage drawer of the box body according to an embodiment of this application;

[0043] Figure 4 This is a schematic diagram of the structure of the fixing component in the first state of fixing the box liner according to an embodiment of this application;

[0044] Figure 5 This is a schematic diagram of the structure of the fixing component in the second state of the box liner according to an embodiment of this application;

[0045] Figure 6 This is a schematic diagram of the structure of the box liner according to an embodiment of this application;

[0046] Figure 7 This is a schematic diagram of the structure of the fixing component, vibration damping sleeve, and vacuum pump according to an embodiment of this application;

[0047] Figure 8 for Figure 6 A magnified view of a section at point A in the middle;

[0048] Figure 9 This is a cross-sectional view of the fixing component being fixed to the inner liner of the box according to an embodiment of this application;

[0049] Figure 10 for Figure 9 A magnified view of a section at point B in the middle;

[0050] Figure 11 This is a cross-sectional schematic diagram of the mounting base according to an embodiment of this application.

[0051] Explanation of reference numerals in the attached figures:

[0052] 10-Inner liner;

[0053] 110 - Refrigeration Room;

[0054] 20-box liners;

[0055] 21-Mounting base; 211-Support structure; 212-Connecting structure; 2111-Support member; 2112-Mounting member; 2113-First receiving groove; 2121-Transition cavity; 2122-Opening; 2123-Suction connector;

[0056] 24-Support base; 241-Second receiving groove;

[0057] 25 - Movable cavity;

[0058] 30-Food storage drawer;

[0059] 310 - Accommodation space;

[0060] 40 - Fixed components;

[0061] 401 - Mounting port; 410 - First fastener; 420 - Second fastener; 411 - First damping plate; 412 - Second damping plate;

[0062] 50 - Vacuum pump;

[0063] 510 - Inlet; 520 - Outlet;

[0064] 60 - Vibration damping sleeve;

[0065] 70 - Inhalation tube. Detailed Implementation

[0066] As described in the background section, related refrigerators include a cabinet, a vacuum pump, and a crisper drawer. The cabinet includes a liner, and the vacuum pump is fixed to the liner. The crisper drawer is located inside the liner to form a storage space for storing food. The vacuum pump is connected to the liner so that it can evacuate air from the crisper drawer's storage space, creating a negative pressure environment that extends the food's shelf life. However, when the vacuum pump evacuates air from the crisper drawer, it generates a relatively large negative pressure, resulting in significant stress at the connection between the vacuum pump and the liner, leading to lower reliability of the liner.

[0067] In view of this, the refrigerator provided in this application uses a vacuum pump whose suction port draws gas out of the transition chamber through a suction pipe. The gas in the transition chamber is under negative pressure, causing gas from the accommodating space to flow into the transition chamber, thus maintaining a negative pressure state in the accommodating space and extending the food's preservation time. The transition chamber can mitigate drastic changes in airflow, improving the uniformity of airflow, thereby reducing pressure shock at the connection between the suction pipe and the refrigerator liner, further reducing stress concentration at the connection between the suction pipe and the refrigerator liner, and improving the reliability of the refrigerator liner.

[0068] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0069] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0070] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0071] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0072] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0073] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0074] 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, and 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.

[0075] This application provides a refrigerator, which may include a cabinet. The cabinet provides support for the refrigerator, protecting the internal components from physical damage. The cabinet also provides space for storing food.

[0076] The refrigerator body may include an outer shell. The outer shell is the outermost layer of the refrigerator, which protects it from external impacts, scratches, and corrosion, and safeguards the internal refrigeration system and internal components from damage. The outer shell also provides thermal insulation.

[0077] Reference Figure 1 As shown, the refrigerator body may include an inner liner 10. The inner liner 10 is the storage space inside the refrigerator, used to store food. This can meet the user's food storage needs.

[0078] The cabinet can have a refrigeration compartment 110. Specifically, the inner surface of the inner liner 10 can be configured to form the refrigeration compartment 110. The refrigeration compartment 110 can be set to a temperature that is low but above freezing to slow down the rate of food spoilage and extend its shelf life.

[0079] The enclosure may include a freezer compartment. A freezer compartment can be set to a low temperature below freezing point, inhibiting the growth of microorganisms or reducing their activity, thus extending the shelf life of food.

[0080] A refrigerator includes a door. The door is located on the front of the refrigerator body. The door seals off the interior space of the refrigerator, preventing cold air from leaking out. Insulation material can be filled inside the door to reduce heat transfer, thereby reducing the refrigerator's energy consumption.

[0081] A refrigerator may include a condenser, which cools and condenses the high-temperature, high-pressure gaseous refrigerant discharged from the compressor into a liquid state. After condensation in the condenser, the refrigerant temperature decreases, but the pressure remains relatively high.

[0082] The condenser is connected to the compressor, which ensures that the refrigerant circulates smoothly in the system and flows smoothly during compression, condensation, expansion and evaporation, thus ensuring refrigeration efficiency and effect.

[0083] Refrigerators may include a throttling valve, which can rapidly reduce the pressure of high-pressure liquid refrigerant. The throttling valve regulates the cooling capacity of the refrigeration system by controlling the flow rate of the refrigerant.

[0084] A refrigerator may include an evaporator, which absorbs heat to change the refrigerant from a liquid state to a gaseous state, thereby lowering the temperature inside the refrigerator.

[0085] For example, the refrigeration process of a refrigerator is as follows: The compressor compresses the low-pressure, low-temperature refrigerant gas, transforming it into a high-temperature, high-pressure gas. The compressed refrigerant is then fed into a condenser connected to the compressor. The condenser then condenses the compressed refrigerant into a liquid state, releasing heat to the surrounding environment. Next, a throttling valve expands the high-pressure liquid refrigerant in the condenser into a low-pressure liquid refrigerant. Finally, the low-pressure liquid refrigerant absorbs heat in the evaporator, completely evaporating into a gaseous state, lowering the internal temperature of the refrigerator, and returning the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator utilizes the heat exchange of the refrigerant to achieve the refrigeration effect.

[0086] Reference Figure 2 As shown, the refrigerator may include a refrigerator liner 20. The refrigerator liner 20 is disposed in the refrigeration compartment 110 and is used to store food.

[0087] Furthermore, the inner liner 20 is surrounded by a movable cavity 25. The movable cavity 25 has an opening facing the front of the liner.

[0088] Reference Figure 3 As shown, the refrigerator may include a crisper drawer 30, which is movably disposed within the inner liner 20. When the crisper drawer 30 is located within the inner liner 20, the crisper drawer 30 and the inner liner 20 together form a storage space 310. The storage space 310 can store food that needs to be kept fresh, extending the food's shelf life.

[0089] The food storage drawer 30 is movably installed inside the inner liner 20. Along the front-to-back direction of the cabinet, the food storage drawer 30 is pushed into the movable cavity 25 through its opening to seal it. The food storage drawer 30 can be pulled out of the movable cavity 25 along the direction of movement, facilitating the retrieval of food from inside.

[0090] The food storage drawer 30 extends the shelf life of food by reducing oxygen levels. Most bacteria and molds grow and multiply slowly in low-oxygen environments. By removing air from the storage space 310, the oxygen level inside the food storage drawer 30 is reduced, thus slowing down food spoilage.

[0091] Reference Figure 3 and Figure 4 As shown, the refrigerator includes a vacuum pump 50, which uses its own motor to drive the impeller to rotate at high speed to generate negative pressure. The vacuum pump 50 is provided with an air intake 510, which is connected to the storage space 310 to extract air from the storage space 310 in order to delay the spoilage of food in the storage space 310.

[0092] The vacuum pump 50 may be provided with an air outlet 520, which can discharge the air drawn by the vacuum pump 50.

[0093] Specifically, in the extending direction of the vacuum pump 50, the suction port 510 and the exhaust port 520 of the vacuum pump 50 are located on the same side. This reduces the path length of airflow and lowers the resistance to airflow, thereby improving the efficiency of the vacuum pump 50. Furthermore, the fact that the pipes connected to the suction port 510 and the exhaust port 520 are installed on the same side improves the assembly efficiency of the refrigerator.

[0094] The food storage drawer 30 may include a pressure relief device (not shown). A vacuum pump 50 extracts air from the accommodating space 310 to create a negative pressure area in the accommodating space 310. The pressure relief device can break the negative pressure state of the accommodating space 310, making it easier to open the food storage drawer 30 and retrieve food from it.

[0095] Reference Figure 4 , Figure 5 and Figure 6 As shown, the refrigerator may include a mounting base 21, which is located on the rear side of the refrigerator liner 20. The mounting base 21 protrudes from the refrigerator liner 20 and extends towards the rear side of the refrigerator body. A vacuum pump 50 can be mounted on the refrigerator liner 20 via the mounting base 21. Mounting the vacuum pump 50 on the refrigerator liner 20 shortens the communication distance between the vacuum pump 50 and the accommodating space 310. Compared to mounting the vacuum pump 50 on the air duct assembly of the refrigerator's refrigeration system, a shorter pipe can be used, thus reducing costs. At the same time, the shorter pipe, as a whole, avoids relative movement when installed on the refrigerator liner 20, thereby avoiding the risk of pipe compression.

[0096] Installing the vacuum pump 50 at the rear of the refrigerator liner 20 facilitates its installation and maintenance, allowing users or maintenance personnel to access and operate it, thus reducing installation and maintenance time and complexity. Furthermore, placing the mounting component 40 at the rear of the refrigerator liner 20 helps to better utilize the internal space of the refrigerator, avoiding the occupation of excessive front or side space and thus not affecting the layout of other functional components.

[0097] For example, the mounting base 21 and the inner box 20 can be manufactured using injection molding.

[0098] The refrigerator may also include a support base 24. The support base 24 can be used to mount the vacuum pump 50.

[0099] Specifically, the support base 24 and the mounting base 21 are spaced apart. That is, there is a distance between the support base 24 and the mounting base 21. The vacuum pump 50 is disposed between the mounting base 21 and the support base 24. By fixing the vacuum pump 50 to the support base 24 and the mounting base 21, its displacement during operation can be limited, which helps to reduce wear and noise caused by the vibration of the vacuum pump, thereby improving the operational stability and reliability of the vacuum pump 50.

[0100] In addition, the support base 24 and the mounting base 21 are spaced apart to fix the vacuum pump 50. The vibration force generated by the vacuum pump 50 when it is working can be transmitted to the support base 24 and the mounting base 21, which helps to disperse the force and avoid excessive pressure on a single stress point, thereby reducing the risk of material fatigue and damage, and thus improving the reliability of the refrigerator.

[0101] Continue to refer to Figure 4 and Figure 5 As shown, the vacuum pump 50 may be equipped with a fixing component 40. The fixing component 40 can ensure the installation of the vacuum pump 50, prevent it from loosening or shifting, maintain the normal operation of the vacuum pump 50, and improve the service life of the vacuum pump 50.

[0102] The mounting component 40 can be detachably connected to the housing liner 20, facilitating the disassembly and installation of the vacuum pump 50 and simplifying the maintenance and replacement process of the vacuum pump 50. For example, the mounting component 40 and the housing liner 20 can be connected by bolts.

[0103] For example, the fixing component 40 may be made of plastic to ensure that the fixing component 40 has a certain strength and prevent the vacuum pump 50 from being damaged by vibration.

[0104] Reference Figure 7 As shown, the vacuum pump 50 may be equipped with a vibration damping sleeve 60. The vibration damping sleeve 60 can absorb and isolate the vibration generated by the vacuum pump 50 during operation, reduce the transmission of vibration, and reduce the noise of the refrigerator.

[0105] For example, the vibration damping sleeve 60 can be made of rubber material, which has good elasticity and wear resistance, and can meet the usage requirements of the vibration damping sleeve 60.

[0106] The vibration damping sleeve 60 is provided with a receiving cavity, and the vacuum pump 50 is disposed in the receiving cavity. By installing the vacuum pump 50 in the vibration damping sleeve 60 and connecting it using the fixing component 40, the installation process of the vacuum pump 50 is simplified and the installation efficiency is improved.

[0107] The fixing component 40 is provided with a receiving cavity for accommodating the vibration damping sleeve 60. That is, the fixing component 40 is fitted onto the outer circumference of the vibration damping sleeve 60. The vibration damping sleeve 60 can be connected to the cabinet liner 20 via the fixing component 40. Installing the vacuum pump 50 inside the vibration damping sleeve 60 and connecting it using the fixing component 40 reduces the number of parts that need to be installed separately, thus simplifying the installation process of the vacuum pump 50 and improving installation efficiency. Furthermore, assembling the fixing component 40, vibration damping sleeve 60, and vacuum pump 50 together reduces the space occupied, which helps to improve the utilization of the internal space of the refrigerator, leaving more space for other components or functions.

[0108] A fixing component 40 is fitted onto the outer circumference of the vibration damping sleeve 60, and the inner surface of the fixing component 40 and the outer surface of the vibration damping sleeve 60 form a silencing cavity. The vacuum pump 50 pumps air into this silencing cavity, which reduces noise during airflow propagation, thereby reducing the noise of the refrigerator.

[0109] The sound-absorbing cavity is formed by the fixing component 40 and the vibration damping sleeve 60, which reduces the number of refrigerator parts and lowers production costs. This also frees up internal space and improves the integration of parts within the refrigerator.

[0110] The fixing assembly 40 has a first end and a second end that are far apart from each other. The first end of the fixing assembly 40 can be connected to the mounting base 21 to ensure the stability of the vacuum pump 50 during operation and reduce the displacement or damage to the vacuum pump 50 caused by vibration or external force.

[0111] The second end of the fixing component 40 can be connected to the support base 24 to ensure the stability of the vacuum pump 50 during operation and reduce the displacement or damage to the vacuum pump 50 caused by vibration or external force.

[0112] By using the first and second ends of the fixing component 40, the installation span of the fixing component 40 can be increased, which helps to disperse the force exerted by the vacuum pump 50 on the fixing component 40, thereby reducing local stress concentration, preventing material fatigue and damage, and thus improving its stability and load-bearing capacity.

[0113] Continue to refer to Figure 7 As shown, a first fixing member 410 is provided at the first end of the fixing component 40, and the first fixing member 410 is connected to the mounting base 21. The first fixing member 410 can transmit the gravity and vibration of the vacuum pump 50 to the mounting base 21, reducing the displacement and vibration of the vacuum pump 50 during operation, thereby reducing the loosening or displacement of the vacuum pump 50 caused by vibration or external force, and making the connection between the fixing component 40 and the mounting base 21 more stable and reliable.

[0114] A second fixing member 420 is provided at the second end of the fixing component 40, and the second fixing member 420 is connected to the support base 24. The second fixing member 420 facilitates the installation of the fixing component 40. The second fixing member 420 can transfer the gravity and vibration of the vacuum pump 50 to the mounting base 21, reducing the displacement and vibration of the vacuum pump 50 during operation, thereby reducing the loosening or displacement of the vacuum pump 50 due to vibration or external force, and making the connection between the fixing component 40 and the mounting base 21 more stable and reliable.

[0115] The fixing component 40 does not contact the refrigerator liner 20, so the vibration energy generated by the vacuum pump 50 during operation is not directly transferred to the refrigerator liner 20. This helps reduce the alternating stress on the refrigerator liner 20, thereby protecting its reliability. Furthermore, if the fixing component 40 were in contact with the refrigerator liner 20, heat transfer might occur, affecting the refrigerator's thermal efficiency. This design reduces heat transfer, maintains a stable internal temperature, and improves the refrigerator's efficiency.

[0116] The first fastener 410 is provided with a mounting port 401. Fasteners (such as bolts) can pass through the mounting port 401 to install the fastening assembly 40 onto the housing.

[0117] For example, the mounting port 401 can be set to be circular to facilitate the passage of the fixing post.

[0118] For example, the mounting port 401 can be configured as an irregularly shaped hole. Multiple protrusions are provided on the inner surface of the circular hole to form the irregular shape. When the vacuum pump 50 is operating, the protrusions can reduce the transmission of vibration energy, preventing it from affecting the reliability of the refrigerator.

[0119] Similarly, the second fastener 420 is provided with an installation port 401, through which fasteners (such as bolts) can pass to install the fastening assembly 40 onto the housing.

[0120] Reference Figure 6 and Figure 7 As shown, in some possible embodiments, the first fixing member 410 may be provided with a first damping plate 411. The first damping plate 411 can absorb the vibration of the vacuum pump 50 during operation, reducing the transmission of vibration to the liner 20 and other parts of the refrigerator. For example, the first damping plate 411 can be made of rubber material, which has good elasticity and wear resistance, and can meet the requirements for the use of damping plates.

[0121] The mounting base 21 may be provided with a first receiving groove 2113, and the first damping plate 411 is disposed in the first receiving groove 2113. The first receiving groove 2113 can prevent the first damping plate 411 from moving, thereby continuously absorbing vibration and ensuring that it plays its damping role.

[0122] The surface of the first damping plate 411 away from the bottom of the first receiving groove 2113 is connected to the first fixing member 410. By absorbing vibration energy during vibration transmission, the vibration energy transmitted from the first fixing member 410 to the mounting base 21 can be reduced, thereby reducing the transmission of vibration energy to the inner liner 20 and other parts of the refrigerator, and thus reducing the noise generated.

[0123] The first damping plate 411 may be provided with multiple elastic protrusions, and the first damping plate 411 abuts against the first receiving groove 2113 through the multiple elastic protrusions. The fixing component 40 undergoes elastic deformation through the elastic protrusions, which can reduce the vibration energy transmitted by the vacuum pump 50 when it is working, improve the reliability of the fixing component, and avoid vibration impact on other parts of the refrigerator.

[0124] Multiple elastic protrusions are arranged around the outside of the mounting opening 401 to improve the reliability of the fastener. Specifically, the first damping plate 411 is provided with six elastic protrusions. This reduces the amount of material used in the fastener and lowers its weight while meeting usage requirements.

[0125] In some possible implementations, the second fixing member 420 is provided with a second damping plate 412. The second damping plate 412 can absorb the vibration of the vacuum pump 50 during operation, reducing the transmission of vibration to the liner 20 and other parts of the refrigerator. For example, the second damping plate 412 can be made of rubber material, which has good elasticity and wear resistance, and can meet the requirements for the use of damping plates.

[0126] The support base 24 is provided with a second receiving groove 241, and the second damping plate 412 is disposed in the second receiving groove 241. The second receiving groove 241 can prevent the second damping plate 412 from moving, thereby enabling it to continuously absorb vibration and ensure that it performs its damping function.

[0127] The surface of the second damping plate 412 away from the bottom of the second receiving groove 241 is connected to the second fixing member 420. By absorbing vibration energy during vibration transmission, the vibration energy transmitted from the second fixing member 420 to the support base 24 can be reduced, thereby reducing the transmission of vibration energy to the inner liner 20 and other parts of the refrigerator, and thus reducing the noise generated.

[0128] Similarly, the second damping plate 412 is provided with multiple elastic protrusions, and the second damping plate 412 abuts against the second receiving groove 241 through the multiple elastic protrusions. The fixing component 40 undergoes elastic deformation through the elastic protrusions, which can reduce the vibration energy transmitted by the vacuum pump 50 when it is working, improve the reliability of the fixing component, and avoid vibration impact on other parts of the refrigerator.

[0129] Multiple elastic protrusions are arranged around the outside of the mounting opening 401 to improve the reliability of the fastener. Specifically, the second damping plate 412 is provided with six elastic protrusions. This reduces the amount of material used in the fastener and lowers its weight while meeting usage requirements.

[0130] Reference Figures 8-11 As shown, the mounting base 21 may further include a support structure 211. The vacuum pump 50 is mounted on the housing 20 by connecting the fixing assembly 40 to the support structure 211, reducing displacement and damage to the vacuum pump 50 due to vibration or external forces, and improving the operational stability of the vacuum pump 50.

[0131] Mounting base 21 may include a connecting structure 212, which and support structure 211 are two structural parts connected to mounting base 21. Connecting structure 212 connects vacuum pump 50 to accommodating space 310. Vacuum pump 50 can pump air from accommodating space 310 through the connecting structure.

[0132] Specifically, the connecting structure 212 is provided with a transition cavity 2121, which is connected to the accommodating space 310 so that air can reach the transition cavity 2121. The suction port 510 of the vacuum pump 50 is provided with a suction pipe 70, which is connected to the connecting structure 212 and the suction port 510 is connected to the transition cavity 2121.

[0133] When the vacuum pump 50 is working, its suction port 510 draws gas out of the transition chamber 2121 through the suction pipe 70. The gas in the transition chamber 2121 is under negative pressure, causing gas in the accommodating space 310 to flow into the transition chamber 2121, thus maintaining a negative pressure state in the accommodating space 310 and extending the food's shelf life. The transition chamber 2121 can mitigate drastic changes in airflow, improving the uniformity of airflow and reducing pressure shock at the connection between the suction pipe 70 and the inner chamber 20. This, in turn, reduces stress concentration at the connection between the suction pipe 70 and the inner chamber 20, improving the reliability of the inner chamber 20.

[0134] In some possible implementations, the connecting structure 212 is provided with a suction connector 2123, which is connected to the suction pipe 70 to prevent air leakage at the connection between the suction pipe 70 and the connecting structure 212, thus affecting the pumping process of the vacuum pump 50.

[0135] The support structure 211 includes a support member 2111, the first end of which is connected to the inner liner 20, and the second end of which extends toward the rear side of the inner liner 20. The support member 2111 allows the support structure 211 to have a certain size, thereby creating a certain distance between the fixing component 40 and the inner liner 20, thus preventing the heat from the vacuum pump 50 from being transferred to the inner liner 20 and affecting the refrigerator's cooling performance.

[0136] The support structure 211 includes a mounting member 2112, which is disposed at the second end of the support member 2111. The mounting member 2112 is spaced apart from the chamber 20, and can be used to connect to the vacuum pump 50. This allows the gravity or force of the vacuum pump 50 to be transferred to the chamber 20, reducing local stress concentration.

[0137] The connecting structure 212 is located on the side of the mounting member 2112 facing the inner chamber 20, and is connected to the support member 2111. This enhances the rigidity and strength of the mounting base 21, reduces the impact of vibration on the transition cavity 2121, and improves the reliability of the inner chamber 20. Furthermore, the connecting structure 212 has a certain length, thus providing sufficient space for the transition cavity 2121 to ensure its proper function.

[0138] The end of the connecting structure 212 away from the mounting component 2112 is provided with an opening 2122, through which the transition cavity 2121 can communicate with the accommodating space 310. This can enhance the rigidity and strength of the mounting base 21 and also ensure smooth airflow, so that the vacuum pump 50 can extract air from the accommodating space 310.

[0139] The area enclosed by the opening 2122 is larger than the cross-sectional area of ​​the suction pipe 70, which ensures smoother airflow from the transition chamber 2121 to the suction pipe 70, reducing airflow resistance and potential bottleneck effects, thereby improving the pumping efficiency of the vacuum pump 50. Furthermore, the larger area of ​​the opening 2122 results in a lower airflow velocity at the opening, generating less turbulence and helping to reduce the operating noise of the vacuum pump 50.

[0140] The outer contour of the mounting part 2112 can be set as a square mounting part. The square mounting part 2112 has better symmetry and stability, which helps to reduce the risk of local stress concentration and deformation.

[0141] To improve the aesthetics of the mounting base 21, the square mounting piece can be chamfered to enhance its smoothness.

[0142] The connecting structure 212 is located at the corner of the square mounting member 2112. The first end of the connecting structure 212 is connected to the inner chamber 20, and the second end is connected to the square mounting member 2112. The square mounting member 2112 can be supported by the connecting structure 212, which reduces structural complexity and material usage, while maintaining smooth gas flow during vacuuming. Combining the connecting and supporting functions into one structure reduces structural complexity and improves the reliability of the mounting base 21.

[0143] The support member 2111 is located on the portion of the square mounting member 2112 that is not connected to the connecting structure 212, and the support member 2111 and the connecting structure 212 are spaced apart. This arrangement can reduce the amount of material used and lower the cost of the box liner 20.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0145] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the embodiments and various different variations of embodiments suitable for specific application considerations.

Claims

1. A refrigerator, characterized in that, include: The enclosure has a refrigeration compartment (110); The liner (20) is installed inside the refrigeration room (110); The food preservation drawer (30) is movably installed inside the inner box (20); when the food preservation drawer (30) is located inside the inner box (20), the food preservation drawer (30) and the inner box (20) together form a storage space (310); The mounting base (21) is located on the rear side of the box liner (20); The mounting base (21) includes a support structure (211) and a connecting structure (212). The support structure (211) and the connecting structure (212) are connected. The connecting structure (212) is provided with a transition cavity (2121) which is connected to the accommodating space (310). A vacuum pump (50) is installed in the chamber (20) via a support structure (211). The vacuum pump (50) has a suction pipe (70) at its suction port (510), which is connected to a connecting structure (212). The suction port (510) is connected to a transition chamber (2121).

2. The refrigerator according to claim 1, characterized in that, The supporting structure (211) includes: Support member (2111), the first end of the support member (2111) is connected to the inner box (20), and the second end of the support member (2111) extends toward the rear side of the inner box (20); Mounting component (2112) is provided at the second end of support component (2111). Mounting component (2112) is spaced apart from box liner (20). Mounting component (2112) can be used to connect to vacuum pump (50).

3. The refrigerator according to claim 2, characterized in that, The connecting structure (212) is located on the side of the mounting member (2112) facing the box liner (20), and the connecting structure (212) is connected to the support member (2111); The connecting structure (212) has an opening (2122) at the end away from the mounting part (2112), and the transition cavity (2121) can communicate with the accommodating space (310) through the opening (2122).

4. The refrigerator according to claim 3, characterized in that, The area enclosed by the opening (2122) is larger than the cross-section of the airway of the inhalation tube (70).

5. The refrigerator according to claim 2, characterized in that, Mounting component (2112) is set as a square mounting component; A connecting structure (212) is provided at the corner of the square mounting piece. The first end of the connecting structure (212) is connected to the inner box (20), and the second end of the connecting structure (212) is connected to the square mounting piece. The support member (2111) is provided on the part of the square mounting member that is not connected to the connecting structure (212), and the support member (2111) and the connecting structure (212) are spaced apart.

6. The refrigerator according to any one of claims 1-5, characterized in that, It also includes a support base (24), which is spaced apart from the mounting base (21), and a vacuum pump (50) is disposed between the mounting base (21) and the support base (24); The vacuum pump (50) is provided with a fixing component (40), the first end of which is connected to the support structure (211), and the second end of which is connected to the support base (24).

7. The refrigerator according to claim 6, characterized in that, The first end of the fixing component (40) is provided with a first fixing member (410), and the second end of the fixing component (40) is provided with a second fixing member (420); The first fastener (410) is connected to the support structure (211), the second fastener (420) is connected to the support base (24), and the fastening component (40) does not contact the inner liner (20).

8. The refrigerator according to claim 7, characterized in that, The support structure (211) is provided with a first receiving groove (2113); The first fixing member (410) is provided with a first damping plate (411), which is disposed in the first receiving groove (2113). The surface of the first damping plate (411) away from the bottom of the first receiving groove (2113) is connected to the first fixing member (410).

9. The refrigerator according to claim 7, characterized in that, The support base (24) is provided with a second receiving groove (241); The second fastener (420) is provided with a second damping plate (412), which is disposed in the second receiving groove (241). The surface of the second damping plate (412) away from the bottom of the second receiving groove (241) is connected to the second fastener (420).

10. The refrigerator according to any one of claims 1-5, characterized in that, In the extending direction of the vacuum pump (50), the suction port (510) and the exhaust port (520) of the vacuum pump (50) are located on the same side.

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