Refrigerator with low noise

Abstract

The low-noise refrigerator comprises a refrigerator shell, a compressor and a condenser, a compressor bin is formed in the refrigerator shell, a first air inlet and a first air outlet are formed in the two sides of the bottom of a back plate of the refrigerator shell respectively, the compressor and the condenser are both arranged in the compressor bin, the condenser is arranged close to the first air inlet, and the first air outlet is arranged close to the second air outlet. The compressor is located on the side, close to the first air outlet, of the condenser, and the first air outlet and the compressor are arranged in a staggered mode. The first air outlet and the compressor are arranged in a staggered mode, it is avoided that most vibration noise waves generated by vibration of the compressor are directly and rapidly discharged from the first air outlet, and the obvious vibration and noise reduction effect is achieved.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to a refrigerator with low noise. Background Technology

[0002] In existing refrigerator-related equipment, the refrigerator body, as the core load-bearing structure for the compressor and internal components, often suffers from significant vibration and airflow noise due to unreasonable design. The bottom of the refrigerator body forms a compressor compartment, which houses the compressor and condenser. A fan is located between the compressor and condenser. The bottom sides of the back panel of the refrigerator body have a first air inlet and a first air outlet, respectively. Driven by the fan, outside cold air enters the compressor compartment through the first air inlet, flows sequentially through the condenser and compressor, and is then discharged through the first air outlet. In related technologies, the first air outlet has a large area and faces the compressor directly. A large amount of vibration and noise generated during compressor operation is directly and rapidly discharged through the first air outlet, resulting in significant noise on the outside of the refrigerator and negatively impacting the user experience.

[0003] In view of the above, this application is hereby submitted. Summary of the Invention

[0004] To address one of the aforementioned technical deficiencies, this application provides a refrigerator with low noise.

[0005] A low-noise refrigerator includes:

[0006] The housing has a compressor compartment inside. The bottom sides of the back plate of the housing are respectively provided with a first air inlet and a first air outlet, and both the first air inlet and the first air outlet are connected to the compressor compartment.

[0007] The compressor and condenser are both located in the compressor compartment. The condenser is located near the first air inlet, and the compressor is located on the side of the condenser near the first air outlet.

[0008] The first air outlet and the compressor are positioned at different locations.

[0009] Optionally, the area of ​​the first air outlet is smaller than the area of ​​the first air inlet.

[0010] Optionally, the projection of the compressor onto the back panel has a gap with the first air inlet;

[0011] Alternatively, the compressor's projection onto the back panel may only cover a small portion of the first air inlet.

[0012] Optionally, the bottom plate of the enclosure is provided with a second air outlet;

[0013] With the refrigerator supported on the support surface, an air duct is formed between the bottom plate of the refrigerator body and the support surface;

[0014] The second air outlet connects the compressor compartment and the air duct.

[0015] Optionally, the base plate includes a compressor base plate and a front base plate;

[0016] The front bottom plate is located on the side of the compressor bottom plate closest to the refrigerator door;

[0017] The compressor base plate is provided with the second air outlet;

[0018] The compressor and condenser are mounted on the compressor base plate.

[0019] Optionally, the compressor base plate has a recess and a peripheral side plate located at the edge of the recess;

[0020] The compressor is installed on one side of the settling tank;

[0021] There is a gap between the peripheral side plate and the supporting surface;

[0022] The second air outlet is provided on the peripheral side plate.

[0023] Optionally, a second air inlet is also provided on the compressor base plate;

[0024] The second air inlet is located close to the condenser;

[0025] The second air inlet connects the air duct and the compressor compartment.

[0026] Optionally, a first spacer is provided on the outer surface of the base plate;

[0027] The first partition bar extends along the direction perpendicular to the back panel of the box;

[0028] The first partition divides the air duct into an air inlet duct and an air outlet duct;

[0029] The second air outlet is connected to the air outlet duct, and the second air inlet is connected to the air inlet duct.

[0030] Optionally, a second spacer is provided on the outer surface of the base plate;

[0031] The second partition is located on the side of the first partition away from the air inlet duct. One end of the second partition extends to the first partition, and the other end extends to the edge of one side of the housing. The first partition and the second partition cooperate to define the air outlet duct.

[0032] Optionally, a low-noise refrigerator may include a draft baffle.

[0033] A recessed groove is formed between the compressor base plate and the front base plate;

[0034] Both the second air outlet and the second air inlet are connected to the recessed groove;

[0035] The air-blocking block is embedded in the recessed groove, and the air-blocking block is located between the second air outlet and the second air inlet.

[0036] By adopting the above technical solution, this application has the following beneficial effects:

[0037] In this application, the first air outlet and the compressor are staggered to avoid most of the vibration noise waves generated by the compressor being directly and rapidly discharged through the first air outlet, which has a significant vibration reduction and noise reduction effect. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0039] Figure 1 This diagram illustrates the internal structure of a refrigerator provided in an embodiment of the present disclosure.

[0040] Figure 2 Show Figure 1 Sectional view along line AA;

[0041] Figure 3 This diagram shows a structural schematic of the compressor compartment of a refrigerator provided in an embodiment of the present disclosure;

[0042] Figure 4 This diagram illustrates the structure of the refrigerator compartment cover provided in an embodiment of the present disclosure.

[0043] Figure 5 This diagram shows a schematic of the structure of a refrigerator fan assembled in a drip tray according to an embodiment of the present disclosure;

[0044] Figure 6 A front view of the bottom plate of the refrigerator provided in an embodiment of this disclosure is shown;

[0045] Figure 7 A bottom view of the drip tray in a refrigerator provided in an embodiment of this disclosure is shown;

[0046] Figure 8 This diagram illustrates the structure of the return gas pipe assembly in a refrigerator according to an embodiment of the present disclosure.

[0047] Figure 9 A cross-sectional view of the capillary tube and transition tube in a refrigerator provided in an embodiment of this disclosure is shown;

[0048] Figure 10 A rear perspective view of a refrigerator provided in an embodiment of this disclosure is shown;

[0049] Figure 11 This is a cross-sectional view showing the mating structure of the compressor base plate and the compartment cover in a refrigerator provided in an embodiment of this disclosure;

[0050] Figure 12 This diagram illustrates a refrigerator with some structures in a separated state according to an embodiment of the present disclosure.

[0051] Figure 13 This diagram shows a structural schematic of the compressor base plate of a refrigerator provided in an embodiment of the present disclosure;

[0052] Figure 14 Show Figure 13 Enlarged view of section A in the middle;

[0053] Figure 15 A three-dimensional structural schematic diagram of the high-temperature connecting pipe in a refrigerator provided in an embodiment of this disclosure is shown;

[0054] Figure 16 A three-dimensional structural diagram of the drip tray in a refrigerator provided in an embodiment of this disclosure is shown;

[0055] Figure 17 This diagram illustrates the mating structure of the water tray and high-temperature connecting pipe in a refrigerator according to an embodiment of the present disclosure.

[0056] Figure 18 This diagram illustrates the assembly structure of the water drip tray, condenser, and fan in a refrigerator according to an embodiment of the present disclosure.

[0057] Figure 19 This diagram illustrates the mating structure of the compressor base plate and the water drip tray in a refrigerator according to an embodiment of the present disclosure.

[0058] Figure 20 This shows a cross-sectional view of the compressor base plate and water tray mating structure in a refrigerator provided in an embodiment of this disclosure;

[0059] Figure 21 This diagram illustrates the structure of the evaporator assembly in a refrigerator according to an embodiment of the present disclosure.

[0060] Figure 22 A cross-sectional view of the liquid storage tank in a refrigerator provided in an embodiment of this disclosure is shown.

[0061] Figure 23 A logic diagram of the condenser assembly design method provided in the embodiments of this disclosure is shown. Detailed Implementation

[0062] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0063] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0064] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] Example 1

[0067] like Figure 3 , Figure 4 and Figure 6 and Figure 10As shown in the figure, this application embodiment provides a low-noise refrigerator, including: a casing 1, a compressor 21, and a condenser 24. A compressor compartment is formed inside the casing 1. A first air inlet 121 and a first air outlet 122 are respectively provided on both sides of the bottom of the back plate 111 of the casing 1 (such as the compartment cover 12), and both the first air inlet 121 and the first air outlet 122 are connected to the compressor compartment. The compressor 21 and the condenser 24 are both disposed in the compressor compartment. The condenser 24 is disposed near the first air inlet 121, and the compressor 21 is located on the side of the condenser 24 near the first air outlet 122. The first air outlet 122 and the compressor 21 are offset.

[0068] In this application, the first air outlet 122 and the compressor 21 are staggered to avoid most of the vibration noise waves generated by the compressor 21 being directly and rapidly discharged through the first air outlet 122, which has a significant vibration reduction and noise reduction effect.

[0069] In some possible implementations, the area of ​​the first air outlet 122 is smaller than the area of ​​the first air inlet 121.

[0070] In this implementation scheme, by reducing the surface area of ​​the first air inlet 121, a large amount of noise vibration waves can be further prevented from being directly discharged from the first air outlet 122, which helps to reduce the noise around the refrigerator.

[0071] In some possible implementations, the projection of the compressor 21 onto the back panel 111 has a gap with the first air inlet 121, or the projection of the compressor 21 onto the back panel 111 only covers a small portion of the first air inlet 121. This structural design prevents a large amount of vibration waves from being directly discharged from the first air inlet 121, allowing the vibration waves to attenuate under the action of the vibration damping and noise reduction structure inside the housing, which helps to reduce noise.

[0072] In some possible implementations, a second air outlet 1322 is provided on the bottom plate of the refrigerator body, such as the compressor bottom plate 13. When the refrigerator is supported on a supporting surface, an air duct is formed between the bottom plate of the refrigerator body and the supporting surface. The supporting surface can be understood as the indoor floor. The second air outlet 1322 connects the compressor compartment and the air duct. This allows some of the air flowing inside the compressor compartment to be discharged through the first air outlet 122 and some through the second air outlet 1322, increasing the airflow path, dispersing the airflow, promoting air circulation, reducing noise, improving heat dissipation efficiency, and significantly enhancing the cooling effect. By reducing the area of ​​the first air outlet 122 and adding the second air outlet 1322, noise accumulation inside the refrigerator body can be avoided. The second air outlet 1322 at the bottom can reduce the transmission of noise through the solid structure at the bottom of the refrigerator body to the external contact surface, achieving the purpose of auxiliary vibration reduction.

[0073] In some possible implementations, such as Figure 6 As shown, the base plate includes a compressor base plate 13 and a front base plate 14. The front base plate 14 is located on the side of the compressor base plate 13 near the refrigerator door. The second air outlet 1322 is provided on the compressor base plate 13. The compressor 21 and the condenser 24 are provided on the compressor base plate 13.

[0074] In some possible implementations, such as Figure 13 As shown, the compressor base plate 13 has a recess 131 and a peripheral side plate 132 located on the edge of the recess 131. The compressor 21 is installed on one side of the recess 131. There is a gap between the peripheral side plate 132 and the support surface. The second air outlet 1322 is provided on the peripheral side plate 132.

[0075] In some possible implementations, a second air inlet 1321 is also provided on the compressor base plate 13. The second air inlet 1321 is located close to the condenser 24 and connects the air duct and the compressor compartment.

[0076] The second air inlet 1321 helps to increase the air volume and reduce noise.

[0077] In some possible implementation schemes, combined Figure 6 As shown, a first partition strip 141 is provided on the outer surface of the bottom plate. The first partition strip 141 extends along the direction perpendicular to the back plate 111 of the box. The first partition strip 141 divides the air duct into an air inlet duct 143 and an air outlet duct 144. A second air outlet 1322 is connected to the air outlet duct 144, and a second air inlet 1321 is connected to the air inlet duct 143. The first partition strip 141 can be provided on the front bottom plate 14 of the bottom plate of the box.

[0078] In this application, a second partition 142 is provided on the outer surface of the base plate. The second partition 142 is located on the side of the first partition 141 away from the air inlet duct 143. One end of the second partition 142 extends to the first partition 141, and the other end of the second partition 142 extends to the edge of one side (one side in the width direction) of the housing. The first partition 141 and the second partition 142 cooperate to define the air outlet duct 144.

[0079] The low-noise refrigerator also includes a baffle block 145. A recessed groove 146 is formed between the compressor base plate 13 and the front base plate 14. The second air outlet 1322 and the second air inlet 1321 are both connected to the recessed groove 146. The baffle block 145 is embedded in the recessed groove 146 and is located between the second air outlet 1322 and the second air inlet 1321 to prevent the flowing air from flowing directly along the recessed groove 146 and affecting the heat exchange efficiency.

[0080] The compressor compartment houses the compressor 21, fan 26, and condenser 24, arranged sequentially from the air inlet to the air outlet. Air baffles 145, a first partition 141, and a second partition 142 are installed on the bottom plate of the housing to isolate the air inlet and outlet, creating a specific channel on the housing to ensure the heat dissipation of the condenser 24. A second partition 142 is located near the door on the side of the compressor 21 to guide the noise generated by the compressor 21 towards the side of the housing, preventing noise accumulation inside. Furthermore, the bottom air outlet (second air outlet 1322) reduces noise transmission through the bottom of the housing to the external contact surface, thus aiding in vibration reduction.

[0081] This application embodiment also optimizes the internal flow channel of the refrigerator, improves the structure of the airflow channel of the air inlet and outlet in the refrigerator, and sets the inner wall of the flow channel as a smoothly transitioning arc structure to avoid right angles or sharp corners, reduce the vortex caused by the sudden change in direction when the airflow flows in the flow channel, and reduce the noise caused by the vortex from the source.

[0082] Example 2

[0083] like Figures 1 to 3 As shown in the illustration, this application provides a detailed description of the vibration damping and noise reduction structure of the compressor compartment of a refrigerator, which includes: a casing 1, a porous sound-absorbing component 22, and a vibration damping component 23. A compressor compartment is formed within the casing 1, located at the bottom of the casing 1. A compressor 21 is disposed within the compressor compartment. The porous sound-absorbing component 22 is disposed within the compressor compartment, and is located at least at the top of the compressor 21, with a gap between the porous sound-absorbing component 22 and the compressor 21. The vibration damping component 23 is disposed within the compressor compartment and is fitted to the compressor 21.

[0084] This application absorbs vibrations at the source by incorporating a vibration damping component 23 on the compressor 21. Furthermore, the application forms an acoustic barrier around the compressor 21 by incorporating a porous sound-absorbing component 22, reducing the noise radiation area. The combined use of the porous sound-absorbing component 22 and the vibration damping component 23 ensures that vibration reduction and sound absorption cover the entire frequency spectrum, significantly reducing the overall A-weighted sound power level.

[0085] In some possible implementations, the porous sound-absorbing component 22 includes a top sound-absorbing component 221 and a side sound-absorbing component 222. The top sound-absorbing component 221 is located on top of the compressor 21 and has a gap with the compressor 21, while the side sound-absorbing component 222 is located on the side of the compressor 21 and has a gap with the compressor 21.

[0086] The porous sound-absorbing component 22 absorbs sound and reduces vibration along the air transmission path inside the compressor compartment. The porous sound-absorbing component 22 is arranged on the top and sides of the compressor 21, significantly reducing the noise radiation area.

[0087] In some possible implementation schemes, combined Figure 1 and Figure 10 As shown, the housing 1 has a main body 11 and a cover 12. The main body 11 has the compressor compartment and an opening communicating with the compressor compartment. The cover 12 is detachably connected to the main body 11 and is used to close or open the opening. The side sound-absorbing component 222 is located on the side of the compressor 21 away from the opening.

[0088] The porous sound-absorbing component 22 avoids the side of the compressor 21 closest to the compartment cover 12, facilitating the maintenance of the compressor 21. The porous sound-absorbing component 22 is arranged on both sides along the width of the refrigerator, avoiding the pipes on the compressor 21, and does not affect the arrangement of the pipes.

[0089] In some possible implementations, the porous sound-absorbing component 22 is a single piece, which facilitates installation and arrangement. Of course, the top sound-absorbing component 221 and the side sound-absorbing component 222 can also be two separate pieces. The two separate pieces can be flexibly installed separately.

[0090] In some possible implementations, the top sound-absorbing component 221 and the side sound-absorbing component 222 are perpendicular to each other, forming an L-shaped structure. The top sound-absorbing component 221 and the side sound-absorbing component 222 are directly connected without gaps between them, preventing vibration waves from being transmitted through gaps between them.

[0091] In some possible implementations, the porous sound-absorbing component 22 is a sheet-like body, and one side of the porous sound-absorbing component 22 along its thickness direction is bonded to the inner wall of the compressor compartment. For example, the porous sound-absorbing component 22 can be bonded to the inner wall of the compressor compartment using adhesive or tape.

[0092] In some possible implementations, the porous sound-absorbing component 22 can be made of PU foam, with a thickness of 5mm to 10mm and a density of 30kg / m³. 3 ~50kg / m 3 PU foam absorbs energy through molecular chain deformation, making it particularly effective against low-frequency vibrations. It can suppress low-frequency vibrations (<500Hz) and reduce the overall A-weighted sound power level of the device.

[0093] In some possible implementations, the damping component 23 includes damping putty 23a, which is attached to the top of the compressor 21, and the thickness of the damping component 23 is 3mm to 5mm.

[0094] The composition of vibration damping putty 23a includes butyl rubber, which has a relatively high loss factor and is suitable for medium and high frequency vibration scenarios. Butyl rubber has high elasticity, durability and environmental friendliness.

[0095] Butyl rubber damping materials (such as butyl rubber damping plates) have a high damping coefficient. When the material is subjected to vibration, the molecular chains slip and twist, converting mechanical energy into heat energy or other forms of energy loss. The damping putty 23a performs excellently in suppressing low-frequency vibrations and structural noise transmission. This application achieves vibration damping and sound absorption covering the entire frequency spectrum through the combined arrangement of the porous sound-absorbing component 22 and the damping component 23.

[0096] In some possible implementations, there is a gap of 1 mm to 5 mm between the vibration damping component 23 and the porous sound-absorbing component 22 located on top of the compressor 21. The close proximity between the porous sound-absorbing component 22 and the compressor 21 helps to reduce the noise radiation area and improve the sound absorption efficiency.

[0097] Example 3

[0098] like Figures 15 to 20 As shown in the illustration, this embodiment provides a detailed description of the drip tray 3 inside the refrigerator, which includes: a drip tray body, a mounting bracket, multiple clamping parts 32, and a high-temperature connecting pipe 251. The drip tray body has a water tank. The mounting bracket is located in the water tank and connected to the drip tray body, and the mounting bracket is used to install the condenser 24 and / or the fan 26. Each of the clamping parts 32 is disposed at a different position in the water tank. The high-temperature connecting pipe 251 is at least partially located in the water tank, and a pipe buffer 2513 is sleeved on the high-temperature connecting pipe 251. The section of the high-temperature connecting pipe 251 with the pipe buffer 2513 is confined within the clamping parts 32. The water receiving tray 3 provided in this embodiment of the application is provided with a clamping part 32, and a pipe buffer 2513 is sleeved on the high temperature connecting pipe 251. The clamping part 32 and the pipe buffer 2513 clamp and cooperate, which improves the assembly structure strength of the high temperature connecting pipe 251, prevents the high temperature connecting pipe 251 from easily detaching from the water receiving tray 3, and reduces the noise generated by the vibration of the high temperature connecting pipe 251 and the water receiving tray 3.

[0099] The pipe buffer 2513 can be an elastic buffer foam, which is fitted onto the high-temperature connecting pipe 251. It can effectively absorb vibration energy, reduce the vibration transmitted by the compressor 21, and thus reduce the vibration noise of the water receiving pan 3.

[0100] The aforementioned high-temperature connecting pipe 251 can be the exhaust pipe on the compressor 21 or the condenser inlet pipe. It has a relatively high temperature and is arranged in or in contact with the liquid in the water receiving pan 3, which is conducive to the evaporation of the liquid in the water receiving pan 3.

[0101] In some possible implementations, the water tray body includes a base plate and a side plate disposed around the edge of the base plate. A mounting bracket is connected to the base plate and / or the side plate. A clamping part 32 is disposed on at least one of the base plate, the side plate, and the mounting bracket, and a clamping space is formed between the clamping part 32 and at least one of the base plate, the side plate, and the mounting bracket. The pipe buffer 2513 is clamped in the clamping space. In this application, the clamping part 32 can be disposed in various ways, and this application does not limit the structure of the clamping part 32.

[0102] In some possible implementations, the clamping part 32 includes a plurality of ribs, each rib being arranged sequentially at intervals along the extension direction of the high-temperature connecting pipe 251, and each rib pressing against the pipe buffer 2513. In this implementation, the arrangement of multiple ribs can effectively press and fix the high-temperature connecting pipe 251.

[0103] In some possible implementations, the mounting bracket divides the water tank into multiple sub-tanks, which are interconnected, and the high-temperature connecting pipe 251 extends sequentially through each of the sub-tanks.

[0104] The high-temperature connecting pipe 251 is arranged in a serpentine manner inside the water receiving tray 3, which can make full use of the space inside the water receiving tray 3. The clamping part 32 is clamped on the pipe buffer 2513, which can reduce the collision between the high-temperature connecting pipe 251 and the water receiving tray body and reduce noise.

[0105] In some possible implementations, the mounting bracket includes a first bracket 33 and a second bracket 34, both of which are located in the water tank. The first bracket 33 and the second bracket 34 are spaced apart and arranged in parallel. The first bracket 33 and the second bracket 34 divide the water tank to form a central sub-tank 35 and side sub-tanks 36 located on both sides of the central sub-tank 35. The high-temperature connecting pipe 251 includes a main pipe section 2511 and two external extension pipe sections 2512. The main pipe section 2511 is located in the central sub-tank 35, and the two external extension pipe sections 2512 extend along the corresponding side sub-tanks 36.

[0106] In some possible implementations, both the first bracket 33 and the second bracket 34 have an end channel 37 connecting the central sub-slot 35 and the side sub-slot 36 between them and the water tray side plate, and the high-temperature connecting pipe 251 is provided through the end channel 37.

[0107] In this implementation scheme, the first bracket 33 is used to install the condenser 24, and the second bracket 34 is used to install the fan 26. The first bracket 33 and the second bracket 34 have end channels 37 at their ends, which will not affect the arrangement of the high-temperature connecting pipe 251.

[0108] In some possible implementations, the main pipe section 2511 is repeatedly bent and extended within the central sub-slot 35. The main pipe section 2511 is arranged in a serpentine pattern within the water receiving pan 3, which facilitates increased contact between the high-temperature connecting pipe 251 and the liquid within the water receiving pan 3.

[0109] In some possible implementations, at least one of the first support 33 and the second support 34 is provided with a central channel 38 connecting the central sub-slot 35 and the side sub-slot 36, and the main pipe section 2511 is provided through the central channel 38. In this implementation, the central channel 38 facilitates the arrangement of the high-temperature connecting pipe 251.

[0110] In some possible implementations, both external extension pipe sections 2512 have U-shaped pipe sections. The U-shaped pipe sections reduce the transmission of vibration energy of the compressor 21 along the high-temperature connecting pipe 251, reduce the vibration noise between the high-temperature connecting pipe 251 and the water tray 3, thereby reducing the overall noise of the refrigerator.

[0111] Example 4

[0112] Combination Figure 5 as well as Figures 12 to 19 As shown in the illustration, this application embodiment provides a detailed description of the condenser assembly of a refrigerator, which includes: a drip tray 3, a fan 26, and a condenser 24. The drip tray 3 has a drip tray body and a mounting bracket. The drip tray body has a water tank, and the mounting bracket is located in the water tank and connected to the drip tray body. The mounting bracket has a baffle plate 332. The fan 26 is detachably mounted to the mounting bracket. The condenser 24 is located on one side of the fan 26 and is fixed to the mounting bracket by fasteners. The baffle plate 332 extends perpendicularly to the arrangement direction of the condenser 24 and the fan 26. The baffle plate 332 is located between the condenser 24 and the bottom wall of the water tank, and is connected to the bottom wall of the water tank.

[0113] In this application, an installation bracket is provided on the water receiving tray 3, which facilitates the installation of the fan 26 and the condenser 24. The baffle plate 332 provided on the installation bracket can prevent airflow short circuit in the compressor compartment and improve the heat exchange efficiency of the condenser 24.

[0114] In some possible implementations, the mounting bracket includes a first bracket 33 and a second bracket 34, which are spaced apart. The condenser 24 is mounted on at least the first bracket 33, the fan 26 is mounted on the second bracket 34, and the baffle 332 is provided on at least the first bracket 33.

[0115] In some possible implementations, the first support 33 includes a plurality of first reinforcing columns 331, each of the first reinforcing columns 331 being connected to the wind baffle 332 and the bottom wall of the water tank, and each of the first reinforcing columns 331 being arranged sequentially at intervals along the length direction of the wind baffle 332. A condenser fixing hole is provided at the top of the first reinforcing column 331, and the condenser 24 is fixed to the condenser fixing hole by fasteners.

[0116] In some possible implementations, the cross-section of the first reinforcing column 331 gradually decreases in the direction from the bottom wall of the water tank to the condenser 24. The first reinforcing column 331 has a large bottom cross-section and a small top cross-section, resulting in greater overall structural strength.

[0117] In some possible implementations, the water tray body includes a water tray base plate and water tray side plates disposed around the edge of the water tray base plate, forming the water trough between the water tray base plate and the water tray side plates. A baffle plate 332 is connected to the water tray base plate, with one end of the baffle plate 332 connected to the side plate and the other end of the baffle plate 332 having a gap with the water tray side plate. Alternatively, both ends of the baffle plate 332 have gaps with the water tray side plate, thereby avoiding the high-temperature connecting pipe 251 and facilitating the placement of the high-temperature connecting pipe 251 in different parts of the water tray body, preventing the baffle plate 332 from blocking the placement of the high-temperature connecting pipe 251.

[0118] In some possible implementations, the second bracket 34 has a slot 341 and a snap-fit ​​part 342, into which the fan 26 is inserted and snap-fitted into the snap-fit ​​part 342.

[0119] In this embodiment, the fan 26 can be inserted into the second bracket 34 along the slot 341. When the fan 26 is inserted into the slot 341, the fan 26 and the second bracket 34 are engaged. When the external force is large enough, the fan 26 can disengage and slide out of the slot 341. The fan 26 of this application is easy to assemble and disassemble, which significantly improves assembly efficiency.

[0120] In some possible implementations, the snap-fit ​​part 342 includes a slot on the bottom wall of the slot 341 of the second bracket 34. A limiting rib 343 is provided on the side wall of the slot 341. The fan 26 has a fan bracket 262 and a fan body 261. The fan body 261 is connected to the fan bracket 262. A buckle 2621 can be provided on the fan bracket 262 to snap-fit ​​with the fan body 261 to fix the fan body 261. A protrusion is provided on the fan bracket 262. The fan bracket 262 is inserted into the sliding groove, and each protrusion snaps into a corresponding slot. Each limiting rib 343 and the fan bracket 262 provide a limiting fit to prevent the fan 26 from easily disengaging from the slot.

[0121] In some possible implementations, the fan body 261 is surrounded by a fan buffer, which is compressed and positioned between the fan bracket 262 and the fan body 261. The fan buffer can be made of foam. The fan buffer helps to reduce the vibration transmission from the fan 26 to the fan bracket 262 and the water tray 3, effectively reducing noise and vibration, and improving equipment stability and service life.

[0122] In some possible implementations, such as Figure 16 As shown, the condenser assembly includes several second reinforcing columns 344, which are connected to the second bracket 34. The second reinforcing columns 344 are provided with condenser fixing holes. The condenser 24 is supported on the second reinforcing columns 344 and fixed to the condenser fixing holes by fasteners.

[0123] Example 5

[0124] like Figure 8 and Figure 9 As shown in the illustration, this application provides a return pipe assembly, including a return pipe 252 and a throttling pipe 253. The return pipe 252 is bent and extended multiple times to form a sheet-like body, the thickness of which is less than 3 times the inner diameter of the return pipe 252. The throttling pipe 253 is connected to the return pipe 252 and extends along the return pipe 252. The end of the throttling pipe 253 is used to connect to an evaporator 27. The throttling pipe 253 has a medium channel, the cross-section of which gradually increases in the direction from away from the evaporator 27 to near the evaporator 27.

[0125] The return pipe assembly of this application has a thin sheet-like body formed by multiple bends, which occupies less space and is less likely to cause structural conflict with the internal structure of the refrigerator, resulting in obvious noise and reducing abnormal noise. The throttling pipe 253 has a progressively larger cross-section of medium channel, which helps to reduce the jet noise of refrigerant at the connection between capillary tube 2531 and evaporator 27, thus improving the user experience.

[0126] In some possible implementations, the return pipe 252 includes an upper pipe section 2521, a lower pipe section 2522, and a turning elbow. The upper pipe section 2521 extends and bends multiple times in a first plane. The lower pipe section 2522 extends and bends multiple times in a second plane. The turning elbow connects the upper pipe section 2521 and the lower pipe section 2522. The upper pipe section 2521 and the lower pipe section 2522 are in contact.

[0127] In this implementation scheme, the return air pipe 252 innovatively adopts a double-layer parallel spiral structure. The traditional single-layer multi-turn return air pipe 252 layout is usually more than 40mm thick, while the double-layer structure provided in this application divides the return air pipe 252 into an upper loop and a lower loop, and by optimizing the pipe routing, the overall thickness is reduced to less than 25mm.

[0128] In some possible implementations, the upper pipe segment 2521 extends and bends repeatedly along a first direction, and the lower pipe segment 2522 extends and bends repeatedly along a second direction, wherein the first direction and the second direction are perpendicular to each other.

[0129] In some possible implementations, the return pipe assembly includes a protective element 254, which is fitted onto the return pipe 252, and the outer diameter of the protective element 254 is greater than the thickness of the sheet-like body.

[0130] The outer diameter of the protective component 254 is much larger than the outer diameter of the return air pipe 252, and the protective component 254 serves to protect the return air pipe 252. The protective component 254 has a through groove and a cutout groove connecting the through groove, through which the return air pipe 252 can pass and be inserted into the through groove. The installation structure of the protective component 254 and the return air pipe 252 is relatively simple. The protective component 254 can be made of foam, foam block, or other materials.

[0131] In some possible implementations, the throttling tube 253 includes a capillary tube 2531 and a transition tube 2532, one end of which is connected to the capillary tube 2531, and the other end of which is used to connect to the evaporator 27. At least the cross-section of the medium channel within the transition tube 2532 increases progressively.

[0132] like Figure 9 As shown, the transition tube 2532 includes multiple tube bodies arranged sequentially and connected sequentially. One tube body at one end is connected to the capillary tube 2531. In the tube bodies from the capillary tube 2531 to the other end, the cross-section of the medium channel of the capillary tube 2531 and each of the tube bodies gradually increases. The inner diameter of each tube body is a fixed value. In related technologies, the transition tube 2532 is a drawn tube, but the processing technology of drawn tubes cannot accurately determine the inner diameter of the medium channel. In this application, the inner diameter of each tube body is a fixed value, allowing for precise control of the inner diameter of the medium channel. The outer diameter of the upper-level tube body is the inner diameter of the lower-level tube body. The medium discharged from the upper-level tube body has a gap with the inner wall of the lower-level tube body and is approximately located at the centerline of the lower-level tube body. The cold medium will not collide with the wall, thus avoiding turbulence.

[0133] In some possible implementations, the return pipe assembly includes damping putty 23a, wherein, of the capillary tube 2531 and each of the tube bodies, the one closer to the evaporator 27 is fitted onto the one farther from the evaporator 27, and the damping putty 23a covers the throttling tube 253, covering the connection between any two adjacent capillary tubes 2531 and each of the tube bodies.

[0134] In this application, the throttling tube 253 adopts a combination of a multi-stage transition tube 2532 structure and a shock-absorbing putty 23a to reduce the jet noise of refrigerant at the connection between the throttling tube 253 and the evaporator 27.

[0135] In some possible implementations, each tube body of the transition tube 2532 includes a primary transition tube 25321 and a secondary transition tube 25322. The primary transition tube 25321 can be made of copper and is argon-arc welded to the capillary tube 2531 at one end. The secondary transition tube 25322 is made of copper and is argon-arc welded to the primary transition tube 25321 at one end and brazed to the evaporator 27 at the other end. The vibration damping putty 23a is wrapped around the outside of the connection between the capillary tube 2531 and the transition tube 2532, and its composition is silicone-based polymer and ceramic microsphere filler, which plays a role in vibration absorption and noise reduction.

[0136] The refrigerator includes a shell 1 and the aforementioned vent pipe assembly. The shell 1 has an inner liner and a back panel 111. The vent pipe assembly is disposed inside the shell 1 and located between the inner liner and the back panel 111.

[0137] The refrigerator may also include a vacuum insulation panel, which is disposed on one side of the inner wall of the back panel 111. The return air pipe assembly is located between the inner liner and the vacuum insulation panel, and has a gap with the vacuum insulation panel. In this application, the return air pipe 252 is located inside the rear foam layer of the cabinet. The double-layer structure design of the return air pipe 252 has a small thickness, which avoids hard contact with the rear panel 111 of the cabinet and also avoids contact interference with the vacuum insulation panel inside the cabinet. The return air pipe 252 is arranged parallel to the vacuum insulation panel, so they do not interfere with each other, effectively avoiding the generation of abnormal noise.

[0138] Example 6

[0139] like Figure 13 and Figure 14As shown in the illustration, this application embodiment provides a detailed description of the compressor base plate 13 of a refrigerator, which includes: a base plate body and a plurality of boss shells 1312. A first concave shell 130 is formed by stamping in the center of the base plate body. The first concave shell 130 encloses a recessed groove 131. A water tray limiting hole 1311 is provided on the bottom wall of the first concave shell 130. A plurality of second concave shells 1323 are formed by stamping along the edges of the base plate body. The first concave shell 130 is stamped to form a plurality of the boss shells 1312, all of which are located in the recessed groove 131. Connecting holes are provided on the boss shells 1312 for connecting and fixing the compressor 21.

[0140] In this application, the bottom plate body has a recessed center forming a groove 131, which increases the space and facilitates increasing the height of the water collection tray 3, thereby increasing the water storage space of the water collection tray 3 and improving the condensate collection capacity. This application also strengthens the structural strength of the compressor bottom plate 13 by setting numerous concave and convex structures on it, helps avoid the vibration frequency of the compressor 21, prevents resonance, and reduces noise and vibration.

[0141] The depth of the sink 131 can be between 1mm and 20mm, and its maximum depth should not be lower than the lowest point of the rollers located at the bottom of the refrigerator.

[0142] In some possible implementations, one side edge of the base plate body is bent to form a flange 1324, and a water tray fixing hole 13242 is provided on the flange 1324.

[0143] In this embodiment, the flange 1324 not only enhances the structural strength of the base plate body, but also provides a fixing position for the water tray 3. The water tray 3 is snapped into the water tray limiting hole 1311 on the bottom wall of the first concave shell 130, and can also be fixed to the water tray fixing hole 13242 on the compressor base plate 13 by means of fasteners.

[0144] In some possible implementations, the flange 1324 is stamped to form a side concave shell 13241, which protrudes towards the first concave shell 130. The side concave shell 13241 is provided with the water receiving tray fixing hole 13242. By stamping to form the side concave shell 13241, the structural strength of the edge of the water receiving tray 3 can be enhanced.

[0145] In some possible implementation schemes, combined Figure 11 As shown, the flange 1324 includes a flange body and a plurality of compartment cover inserts 13243 disposed on the edge of the flange body. The flange body has a side recess 13241, and each of the compartment cover inserts 13243 protrudes from the flange body. When assembling the compressor base plate 13 and the compartment cover 12 at the rear of the refrigerator's compressor compartment, the compartment cover inserts 13243 can be inserted into the compartment cover 12, reducing the number of fasteners used. Figure 11As shown, a positioning slot 123 can be provided on the compartment cover 12, and the compartment cover insert 13243 can be directly inserted into the positioning slot 123.

[0146] In some possible implementations, such as Figure 13 As shown, the boss shell 1312 has a top end face, and a reinforcing rib 13121 is provided on the top end face, the reinforcing rib 13121 protruding from the top end face.

[0147] In this embodiment, the reinforcing rib 13121 extends circumferentially around the connecting hole. The reinforcing rib 13121 can be formed by stamping. The setting of the reinforcing rib 13121 can reduce the contact area between the compressor 21 and the boss housing 1312, which has a shock-absorbing effect and also plays a role in local reinforcement.

[0148] In some possible implementations, the height of the boss housing 1312 is not greater than the depth of the recess 131, which can help reduce the installation height of the compressor 21 and make full use of the space inside the compressor compartment.

[0149] In some possible implementations, the base plate body has a peripheral side plate 132 located at the edge of the first concave shell 130. The peripheral side plate 132 and the bottom wall of the first concave shell 130 have a gap. Ventilation holes are provided on the peripheral side plate 132 to facilitate the intake or exhaust of air into or from the compressor compartment. The ventilation holes serve as a ventilation and heat dissipation function, and are a second air outlet 1322 and a second air inlet 1321.

[0150] The refrigerator includes a main body 11, a compressor 21, and the aforementioned compressor base plate 13. The refrigerator may also include a shell 1, which comprises the main body 11 and the compressor base plate 13. The compressor base plate 13 is connected to the main body 11, forming a compressor compartment between the compressor base plate 13 and the main body 11. The compressor 21 is supported on each of the aforementioned boss shells 1312 and is connected to the connecting holes on the boss shells 1312 via fasteners.

[0151] In some possible implementation schemes, such as... Figure 13 and Figure 20 As shown, the refrigerator includes a drip tray 3, which has a retaining claw 39. The drip tray 3 is located in the settling groove 131, and the retaining claw 39 engages with a drip tray limiting hole 1311 on the drip tray 3. The retaining claw 39 can be L-shaped to facilitate engagement with the square drip tray limiting hole 1311.

[0152] like Figure 7 As shown, a water tray buffer 310 can be installed between the water tray 3 and the compressor base plate 13, which helps to reduce the transmission of vibration waves. The water tray buffer 310 can be foam installed between the compressor base plate 13 and the water tray 3.

[0153] During the assembly process, the compressor base plate 13 can be installed and fixed to the refrigerator shell 1 with screws. Then, the cover insert 13243 at the flange 1324 of the compressor base plate 13 is inserted into the cover 12. Finally, the remaining parts of the cover 12 are fixed to the refrigerator shell 1 with screws, thereby realizing the installation of the cover 12.

[0154] Example 7

[0155] like Figure 21 and Figure 22 As shown in the embodiments of this application, the evaporator assembly of the refrigerator is described in detail, which includes: evaporator 27, expansion tube 253 and liquid receiver 255. A throttling tube 253 is connected to the inlet of the evaporator 27. The throttling tube 253 has a medium channel, and the cross-section of the medium channel gradually increases from the direction away from the evaporator 27 to the direction closer to the evaporator 27. The liquid reservoir 255 includes a liquid reservoir 2551, an air inlet pipe 2552, and an air outlet pipe 2553. The liquid reservoir 2551 has a cavity. The air inlet pipe 2552 and the air outlet pipe 2553 are both connected to the liquid reservoir 2551. One end of the air inlet pipe 2552 is connected to the outlet of the evaporator 27, and the other end of the air inlet pipe 2552 extends into the cavity. An oil return hole 25523 is provided on the pipe wall of the section of the air inlet pipe 2552 located in the cavity. The diameter of the oil return hole 25523 is 0.8 mm to 1.2 mm.

[0156] In this application, the cross-section of the medium passage in the throttling pipe 253 gradually increases, which helps to reduce the jetting noise generated by the refrigerant. The liquid receiver 255 is located at the outlet of the evaporator 27 to prevent incompletely vaporized refrigerant containing liquid from entering the cylinder of the compressor 21 and causing liquid slugging. This application provides a larger oil return hole 25523 on the inlet pipe 2552, which can suppress the generation of larger refrigerant bubbles and prevent refrigerant bubbles from bursting on the surface of the refrigerant liquid, thus reducing the operating noise and backflow noise of the evaporator 27.

[0157] Two oil return holes 25523 are provided on the intake pipe 2552, and the two oil return holes 25523 are located on opposite sides of the pipe wall of the intake pipe 2552. By providing two oil return holes 25523 on the intake pipe 2552, the generation of large refrigerant bubbles can be effectively suppressed, avoiding the explosion of large refrigerant bubbles on the surface of the refrigerant liquid and generating noise, thereby reducing the operating noise and backflow noise of the evaporator 27.

[0158] In some possible implementations, the intake pipe 2552 includes a straight pipe section 25521 and an inclined pipe section 25522. The straight pipe section 25521 extends into the cavity, and the inclined pipe section 25522 is located within the cavity and connected to the straight pipe section 25521. An oil return hole 25523 is located on the side of the straight pipe section 25521 near the inclined pipe section 25522. In this application, the installation height of the oil return hole 25523 is increased, making it close to the liquid level in the reservoir 255, which helps reduce noise.

[0159] In some possible implementations, the distance between the oil return hole 25523 and the bottom wall of the end of the cavity of the liquid storage bottle 2551 opposite to the vent pipe 2553 is 30mm to 40mm. Preferably, the distance between the oil return hole 25523 and the bottom wall is 35mm.

[0160] In some possible implementations, the extension direction of the return oil hole 25523 and the extension direction of the straight pipe section 25521 form an angle of 10° to 30°, which is beneficial for cutting air bubbles and facilitating the smooth discharge of air bubbles.

[0161] In some possible implementations, the evaporator assembly includes damping putty 23a, and the throttling tube 253 includes a capillary tube 2531 and a transition tube 2532, one end of which is connected to the capillary tube 2531, and the other end of which is connected to the evaporator 27. The cross-sectional area of ​​the medium passage within the transition tube 2532 gradually increases in the direction from the capillary tube 2531 to the evaporator 27. The damping putty 23a at least covers the transition tube 2532.

[0162] The damping putty 23a is wrapped or filled on the throttling tube 253 and tightly bonded to the pipeline, reducing the noise amplification caused by the vibration of the throttling tube 253 at the diameter change section, and suppressing the jet noise caused by the refrigerant flowing in the diameter change transition section.

[0163] In some possible implementations, the transition tube 2532 includes multiple tube bodies arranged sequentially and connected sequentially. One end of the tube body is connected to the capillary tube 2531. In the direction from the capillary tube 2531 to the evaporator 27, the cross-section of the medium channel of the capillary tube 2531 and each of the tube bodies gradually increases. Vibration-damping putty 23a covers the throttling tube 253, covering the connection points between any two adjacent parts of the capillary tube 2531 and each tube body.

[0164] Of the two adjacent capillary tubes 2531 and each of the tube bodies, the one closer to the evaporator 27 is fitted onto the one farther away from the evaporator 27.

[0165] The evaporator assembly may include a wrapping layer that covers the outside of the damping putty 23a. The damping putty 23a tightly wraps the throttling tube 253 in a semi-fluid state, forming a "sandwich" structure after curing. The wrapping layer may be aluminum foil tape, and the damping putty 23a may also be fixed in conjunction with the aluminum foil tape. The damping putty first covers the throttling tube 253 to provide damping, and then the aluminum foil tape is wrapped around the outside of the damping putty to enhance mechanical fixation.

[0166] The refrigerator's refrigeration system includes a compressor 21, a condenser 24, and the aforementioned evaporator assembly. The outlet pipe 2553 of the evaporator assembly is connected to the compressor 21. The condenser 24 is connected to both the expansion joint 253 and the compressor 21. The compressor 21, condenser 24, and evaporator 27 form a circulating cooling medium circuit. The refrigerator provided in this embodiment includes a casing and the refrigeration system, with the refrigeration system disposed within the casing.

[0167] Example 8

[0168] like Figure 23 As shown in the embodiments of this application, a condensation component design method is provided, including:

[0169] Step S1: Obtain the heat absorbed by the evaporator and the input power of the compressor, and obtain the first heat dissipation of the condenser according to the thermodynamic law of conservation of energy;

[0170] Step S2: Calculate the second heat dissipation of the condenser based on the heat dissipation area of ​​the condenser and the conductivity coefficient of the fan;

[0171] Step S3: Calculate the condensing temperature of the condenser based on the fact that the first heat dissipation is equal to the second heat dissipation.

[0172] Step S4: Determine whether the condensing temperature is within the design range. If the condensing temperature is not within the design range, adjust the area of ​​the condenser and proceed to step S2; otherwise, determine the heat dissipation area of ​​the condenser.

[0173] The design method provided in this application can output a relatively accurate condenser structure through model calculation during the product design stage, thereby improving R&D efficiency and product quality.

[0174] The refrigerator refrigeration system consists of five major components: compressor, anti-condensation tube, condenser, capillary tube, and evaporator. The condensation assembly is composed of the condenser and the cooling fan.

[0175] Based on the thermodynamic law of conservation of energy, a refrigerator energy conversion system model is established, namely, the heat absorbed by the evaporator Q1 + the input power of the compressor P = the heat dissipation of the condenser module Q2 + the heat dissipation of the anti-condensation pipe Q3 + the heat dissipation of the compressor Q4, where the heat absorbed by the evaporator Q1 comes from the refrigerator's heat load, and the two are theoretically equal.

[0176] According to the energy conversion system model, the energy sources of the refrigerator include its own heat load and the compressor input power; the refrigerator heat dissipation system includes three main components: the condenser module, the anti-condensation pipe, and the compressor.

[0177] In some possible implementations, the first heat dissipation is: (Q1*η+P)*a;

[0178] Where Q1 is the heat absorbed by the evaporator, η is the target operating rate of the refrigerator, P is the input power of the compressor, and a is the ratio of the heat dissipation of the condenser to the total heat dissipation of the refrigerator.

[0179] The ratio 'a' of condenser heat dissipation to total refrigerator heat dissipation was obtained based on historical data from multiple samples.

[0180] Based on the historical products with good matching, the key performance parameters of the historical sample were calculated under various operating conditions. The heat dissipation ratios of the condenser module, anti-condensation pipe, and compressor were obtained respectively, thus yielding the heat dissipation ratio of the condenser module Q2 to the total heat dissipation ratio a of the refrigerator.

[0181] The heat absorbed by the evaporator, Q1, is calculated based on the highest ambient temperature specified in the product design standard.

[0182] The compressor input power P is obtained based on the compressor's rated power under standard operating conditions.

[0183] To assess the rationality of the condenser module's heat dissipation capacity, the worst operating condition within the product design standard is typically selected, ensuring the refrigerator can operate normally at the highest ambient temperature. For example, the highest ambient temperature for domestically sold products is usually 43℃. Once the refrigerator product platform and functions are clear, the refrigerator's heat load Q1 (or the heat absorbed by the evaporator) at an ambient temperature of 43℃ can be calculated. Simultaneously, to ensure product reliability, the target operating rate η is preset for the refrigerator at an ambient temperature of 43℃. After determining the refrigerator's heat load and energy efficiency rating, the compressor selection is also basically clear. Based on the compressor's rated power under standard operating conditions, the compressor's input power P is obtained, thus deriving the condenser module's heat dissipation Q2 = (Q1*η + P)*a (Equation 1).

[0184] In some possible implementations, the second heat dissipation is: K*A*△t;

[0185] K is the heat transfer coefficient of the cooling fan at different air volumes, and A is the heat dissipation area of ​​the condenser.

[0186] △t = condensation temperature TL - ambient temperature Tc;

[0187] Among them, a heat exchange equipment calculation platform with water as the medium was established, and the heat transfer coefficient K of the cooling fan with different air volumes was obtained based on the model that the heat exchange on the water side and the air side are equal.

[0188] In this step, a heat exchange equipment calculation platform with water as the medium (or other media) is established. Based on the PQ curve of the cooling fan, and according to the principle of equal heat exchange on the water side and the air side, the heat transfer coefficient K of the cooling fan with different air volumes (different speeds) is obtained.

[0189] According to the thermodynamic formula, the heat dissipation of the condenser module is Q2 = K * A * Δt (Equation 2). K is the heat transfer coefficient. For example, if a cooling fan speed is set at an ambient temperature of 43℃, the fan speed has a corresponding heat transfer coefficient K; the heat dissipation area of ​​the condenser is A, which is related to parameters such as the condenser size and number of rows; Δt is the difference between the condensing temperature TL and the ambient temperature Tc, representing the surface condenser heat dissipation temperature difference.

[0190] From equations 1 and 2, we derive equation 3: (Q1*η+P)*a=K*A*△t;

[0191] The condensing temperature TL of the condenser module can be obtained by calculation according to Equation 3.

[0192] In some possible implementations, in step S4, if it is determined that the condensing temperature is higher than the design range, the heat dissipation area of ​​the condenser is increased, and the process proceeds to step S2.

[0193] If the condensing temperature is determined to be below the design range, the heat dissipation area of ​​the condenser is reduced, and the process proceeds to step S2.

[0194] When the condensing temperature is determined to be within the design range, the heat dissipation area of ​​the current condenser is set as the target value.

[0195] Based on the operating characteristics of the refrigerator's refrigeration system, the higher the system's condensing temperature, the worse the heat dissipation capacity, the higher the overall energy consumption, and the worse the refrigeration performance; the lower the system's condensing temperature, the better the heat dissipation capacity, but the higher the cost. At the same time, it is limited by structure, size, noise, etc. Therefore, the condensing temperature TL of the refrigerator's refrigeration system has a reasonable range. For example, at an ambient temperature of 43℃, the reasonable range of the refrigerator's condensing temperature is 5 to 8℃.

[0196] Given a fixed cooling fan specification and speed, if the calculated condenser module condensing temperature TL is higher than its reasonable range (e.g., 10℃), it indicates that the condenser area is too small and needs to be increased. With the condenser's external dimensions unchanged, the number of condenser rows can be increased, and the condensing temperature TL can be recalculated until the condenser module's condensing temperature TL is within a reasonable range. Conversely, if the calculated condensing temperature TL is lower than its reasonable range (e.g., 3℃), it indicates that the condenser area is too large and needs to be reduced. With the condenser's external dimensions unchanged, the number of condenser rows can be reduced, and the condensing temperature TL can be recalculated until the condenser module's condensing temperature TL is within a reasonable range.

[0197] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0198] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0199] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A refrigerator with low noise, characterized in that, include: The housing has a compressor compartment inside. The bottom sides of the back plate of the housing are respectively provided with a first air inlet and a first air outlet, and both the first air inlet and the first air outlet are connected to the compressor compartment. The compressor and condenser are both located in the compressor compartment. The condenser is located near the first air inlet, and the compressor is located on the side of the condenser near the first air outlet. The first air outlet and the compressor are positioned at different locations.

2. The refrigerator with low noise according to claim 1, characterized in that, The area of ​​the first air outlet is smaller than the area of ​​the first air inlet.

3. The refrigerator with low noise according to claim 1, characterized in that, The projection of the compressor onto the back panel has a gap with the first air inlet; Alternatively, the compressor's projection onto the back panel may only cover a small portion of the first air inlet.

4. The refrigerator with low noise according to claim 1, characterized in that, The bottom plate of the enclosure is provided with a second air outlet; With the refrigerator supported on the support surface, an air duct is formed between the bottom plate of the refrigerator body and the support surface; The second air outlet connects the compressor compartment and the air duct.

5. The refrigerator with low noise according to claim 4, characterized in that, The base plate includes a compressor base plate and a front base plate; The front bottom plate is located on the side of the compressor bottom plate closest to the refrigerator door; The compressor base plate is provided with the second air outlet; The compressor and condenser are mounted on the compressor base plate.

6. The refrigerator with low noise according to claim 5, characterized in that, The compressor base plate has a recess and a peripheral side plate located at the edge of the recess; The compressor is installed on one side of the settling tank; There is a gap between the peripheral side plate and the supporting surface; The second air outlet is provided on the peripheral side plate.

7. The refrigerator with low noise according to claim 5, characterized in that, The compressor base plate is also provided with a second air inlet; The second air inlet is located close to the condenser; The second air inlet connects the air duct and the compressor compartment.

8. The refrigerator with low noise according to claim 7, characterized in that, A first spacer is provided on the outer surface of the base plate; The first partition bar extends along the direction perpendicular to the back panel of the box; The first partition divides the air duct into an air inlet duct and an air outlet duct; The second air outlet is connected to the air outlet duct, and the second air inlet is connected to the air inlet duct.

9. The refrigerator with low noise according to claim 8, characterized in that, A second spacer is provided on the outer surface of the base plate; The second partition is located on the side of the first partition away from the air inlet duct. One end of the second partition extends to the first partition, and the other end extends to the edge of one side of the housing. The first partition and the second partition cooperate to define the air outlet duct.

10. The refrigerator with low noise according to claim 7, characterized in that, Including air-blocking blocks; A recessed groove is formed between the compressor base plate and the front base plate; Both the second air outlet and the second air inlet are connected to the recessed groove; The air-blocking block is embedded in the recessed groove, and the air-blocking block is located between the second air outlet and the second air inlet.

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