Refrigeration equipment

By eliminating the condenser fan and utilizing the built-in condenser and chimney effect of the air duct assembly to achieve natural convection heat dissipation, the problems of refrigerator noise and reduced volume are solved, improving user experience and space utilization.

CN121993947APending Publication Date: 2026-05-08HEFEI HUALING CO LTD +2
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI HUALING CO LTD
Filing Date
2024-11-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing refrigerators have issues with condenser fan noise and reduced capacity due to gaps at the bottom.

Method used

The condenser fan is eliminated, and a condenser is built into the air duct assembly. Natural convection heat dissipation is achieved by utilizing the chimney effect. The air duct assembly is located at the bottom of the refrigerator, with the air outlet higher than the air inlet, creating a pressure difference to enhance natural convection.

Benefits of technology

It reduces noise, improves the reliability and capacity of refrigeration equipment, and solves the problems of hot side panels in traditional refrigerators and insufficient space in built-in refrigerators.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121993947A_ABST
    Figure CN121993947A_ABST
Patent Text Reader

Abstract

The invention discloses refrigeration equipment. The refrigeration equipment comprises an air duct assembly and a condenser, wherein the condenser is used for being connected with a compressor of the refrigeration equipment; the air duct assembly is arranged at the bottom of a box body of the refrigeration equipment, an air duct is arranged in the air duct assembly, the condenser is arranged in the air duct, the air duct assembly is provided with an air inlet and an air outlet which are communicated with the air duct, the air outlet is formed above the condenser, the position of the air outlet is higher than that of the air inlet, and the air inlet is communicated with the air duct. And therefore, air entering from the air inlet can be naturally exhausted from the air outlet after being heated and expanded by the condenser. According to the refrigeration equipment, a condensation fan is omitted, so that the noise of the refrigeration equipment is reduced, the user experience is improved, the air duct assembly of the refrigeration equipment is assembled at the bottom of the refrigeration equipment, namely, the condenser is arranged at the bottom of the refrigeration equipment, and the problem that a side plate in traditional refrigeration equipment is hot is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a refrigeration device. Background Technology

[0002] In related technologies, refrigerators typically employ a cooling method where the condenser and fan are placed inside the compressor compartment. Air supplied by the fan flows through the condenser, forcibly exchanging heat with the superheated refrigerant within. However, this fan generates noise during operation, impacting the user experience. Furthermore, compared to built-in refrigerators, this cooling method requires a 20-40mm gap at the bottom of the refrigerator for airflow, reducing the actual usable height and volume of the refrigerator. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a refrigeration device that eliminates the condenser fan, thereby eliminating the noise problem generated by the condenser fan in related refrigeration devices, and increasing the effective volume of the refrigeration device.

[0004] According to an embodiment of the present invention, a refrigeration device includes an air duct assembly and a condenser. The condenser is connected to the compressor of the refrigeration device. The air duct assembly is located at the bottom of the housing of the refrigeration device. An air duct is provided inside the air duct assembly. The condenser is located inside the air duct. The air duct assembly has an air inlet and an air outlet communicating with the air duct. The air outlet is located above the condenser, and the position of the air outlet is higher than the position of the air inlet, so that the air entering through the air inlet can be naturally discharged from the air outlet after being heated and expanded by the condenser.

[0005] The refrigeration device according to embodiments of the present invention has at least the following beneficial effects: The present invention places the condenser inside the air duct, with the air outlet of the air duct located above the condenser and higher than the air inlet. During condenser operation, the surface temperature is much higher than the ambient temperature, creating a pressure difference within the air duct between the air outlet and the air inlet. This generates a chimney effect within the air duct assembly, enhancing natural convection. Ambient air enters the air duct assembly from the air inlet, and after heat exchange on the condenser surface, the hot air is discharged from the air outlet above the air duct assembly, achieving a heat dissipation effect. Since the refrigeration device eliminates the condenser fan, it reduces noise, improves user experience, and significantly enhances reliability after eliminating the fan. Furthermore, the air duct assembly is mounted at the bottom of the refrigeration device, i.e., the condenser is located at the bottom, solving the problem of hot side panels in traditional refrigeration devices. Moreover, compared to embedded refrigeration devices, the air duct assembly can be located at the bottom of the housing near the door, eliminating the need for a large gap at the bottom of the refrigeration device as an air inlet / outlet channel. This increases the height of the internal space of the refrigeration device, thereby increasing its volume.

[0006] According to some embodiments of the present invention, the air duct assembly includes a base plate and a cover plate disposed on the base plate, the base plate and the cover plate defining the air duct, a connecting portion is provided at one end of the base plate, the connecting portion is inclined upward in a direction away from the base plate, the condenser is disposed near the connecting portion, and the air inlet includes a first air inlet disposed on the connecting portion and opposite to the condenser.

[0007] According to some embodiments of the present invention, the air inlet includes a second air inlet communicating with the air duct, the second air inlet being disposed on the side of the base plate away from the condenser.

[0008] According to some embodiments of the present invention, the area of ​​the air inlet is greater than or equal to the area of ​​the air outlet.

[0009] According to some embodiments of the present invention, the condenser is arranged along the length direction of the air duct assembly, and the air inlet is arranged along the length direction of the air duct assembly.

[0010] According to some embodiments of the present invention, the condenser includes a condenser tube and a plurality of fins connected to the condenser tube, wherein the spacing between two adjacent fins along the axial direction of the condenser tube is L, wherein 2mm≤L≤15mm.

[0011] According to some embodiments of the present invention, the base plate is provided with a water receiving box, which is used to receive the liquid generated by the evaporator of the refrigeration equipment.

[0012] According to some embodiments of the present invention, a press chamber is formed between the base plate and the cover plate, and the press chamber is connected to the air duct.

[0013] According to some embodiments of the present invention, a third air inlet is provided on the base plate, and the third air inlet is connected to the compressor chamber.

[0014] According to some embodiments of the present invention, the bottom plate at the press chamber is provided with a groove, and one end of the groove is connected to the water receiving box.

[0015] According to some embodiments of the present invention, the water receiving box and the base plate are an integral structure.

[0016] According to some embodiments of the present invention, the housing is provided with a door, the air duct assembly is located on the bottom of the housing near the door, and the air outlet is located on the side of the housing near the door.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a refrigeration device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Left view of the refrigeration equipment in the illustrated embodiment;

[0021] Figure 3 This is a three-dimensional schematic diagram of the air duct assembly of a refrigeration device according to an embodiment of the present invention;

[0022] Figure 4 This is a left view of the air duct assembly of a refrigeration device according to an embodiment of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the air duct assembly of a refrigeration device according to an embodiment of the present invention after removing part of the air duct assembly.

[0024] Figure 6 for Figure 5 The left view;

[0025] Figure 7 This is a three-dimensional schematic diagram of the base plate of the air duct assembly of a refrigeration device according to an embodiment of the present invention;

[0026] Figure 8 This is a three-dimensional schematic diagram of the condenser of a refrigeration device according to an embodiment of the present invention;

[0027] Figure 9 This is a partial structural diagram of the condenser of a refrigeration device according to an embodiment of the present invention.

[0028] Icon labels:

[0029] Refrigerator 100, compressor 110, cabinet 120, door 130, extension 131, grille 132, condenser 140, condenser tube 141, fins 142;

[0030] Air duct assembly 200, base plate 210, connecting part 211, water receiving box 212, cover plate 230, air duct 240, first air inlet 241, second air inlet 242, third air inlet 243, fourth air inlet 244, air outlet 245, compressor chamber 250, groove 251, mounting platform 252. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the orientation descriptions, such as left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0034] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0035] In related technologies, most built-in refrigerators use "external cooling" technology, which involves placing the condenser and fan inside the compressor compartment and dissipating heat from the overheated refrigerant in the condenser through air cooling. The drawback of this method is that it requires a 20-40mm gap at the bottom of the refrigerator as an air intake and exhaust channel, reducing the actual usable height and internal volume of the refrigerator. Furthermore, the small size of the compressor compartment and its location at the rear of the refrigerator result in a sealed environment, and the noise generated by the fan during operation has consistently ranked among the top three most complained-about issues in the market.

[0036] For built-in refrigerators, the relevant technologies usually adopt a bottom heat dissipation air intake and exhaust method. Cold air in the environment is drawn in by the fan in the compressor compartment through the left side of the bottom of the refrigerator, passes through the condenser and blown out to the right side, forming a U-shaped air path. In this process, the resistance of the air intake and exhaust duct at the bottom of the refrigerator and the resistance of the condenser affect the efficiency of the fan, resulting in a decrease in the working efficiency of the fan under high static pressure, an increase in speed, a deterioration in noise, and an increase in energy consumption.

[0037] Currently, the most common heat dissipation method for refrigerators and commercial freezers is the wire-tube condenser, which relies on natural convection cooling by suspending the condenser at the back of the refrigerator. However, this method has two major drawbacks: First, it cannot be installed in built-in refrigerators. Once installed in a pre-reserved space, the relatively enclosed environment prevents the wire-tube condenser from receiving sufficient natural convection heat, leading to malfunction. Second, this type of wire-tube condenser is relatively large, typically used in commercial freezers, and is not suitable for household refrigerators.

[0038] Therefore, the present invention proposes a refrigeration device that not only eliminates the condenser fan, thereby reducing the noise of the refrigeration device and improving the user experience, but also can be either a commercial freezer or an embedded refrigerator.

[0039] The refrigeration equipment proposed in this embodiment of the invention can be a refrigerator 100, a freezer or a wine cabinet, etc. The refrigerator 100 is used as an example below, and the invention will be described in detail with reference to the accompanying drawings.

[0040] Reference Figures 1 to 6 The refrigeration equipment proposed in this embodiment of the invention includes a condenser 140 and an air duct assembly 200. The condenser 140 is used to connect to the compressor 110 of the refrigerator 100. The air duct assembly 200 is located at the bottom of the cabinet 120 of the refrigeration equipment. When the refrigerator 100 needs to refrigerate, the compressor 110 starts to work. The compressor 110 draws in low-temperature, low-pressure refrigerant. After the refrigerant is compressed by the piston driven by the motor, the high-temperature, high-pressure refrigerant is discharged into the condenser 140. The high-temperature, high-pressure refrigerant dissipates heat in the condenser 140. Therefore, it is necessary to dissipate the heat emitted by the condenser 140 in a timely manner to ensure the normal operation of the refrigerator 100.

[0041] Reference Figure 5 , Figure 6 The air duct assembly 200 has an internal air duct 240, and the condenser 140 is located inside the air duct 240. The air duct assembly 200 has an air inlet and an air outlet 245 that are connected to the air duct 240. The air outlet 245 is located above the condenser 140, and the position of the air outlet 245 is higher than that of the air inlet. During the operation of the condenser 140, the surface temperature is much higher than the ambient temperature, which creates a pressure difference in the air duct 240 between the air outlet 245 and the air inlet. This creates a chimney effect in the air duct 240 of the air duct assembly 200, which enhances natural convection. As a result, under the influence of the chimney effect, ambient air enters the air duct assembly 200 from the air inlet. After heat exchange on the surface of the condenser 140, the heated and expanded airflow can be naturally discharged from the air outlet 245 above the air duct assembly 200, achieving a heat dissipation effect.

[0042] In this embodiment of the invention, the air duct assembly 200 can be set on the bottom of the cabinet 120 near the door 130, such as in an embedded refrigerator, or it can be set on the bottom of the cabinet 120 away from the door 130, such as when used in a relatively open environment.

[0043] In summary, this invention places the condenser 140 within the air duct 240, with the air outlet 245 of the air duct 240 positioned above the condenser 140 and higher than the air inlet. During operation, the surface temperature of the condenser 140 is significantly higher than the ambient temperature, creating a pressure difference within the air duct 240 between the air outlet 245 and the air inlet. This generates a chimney effect within the air duct 240, enhancing natural convection. Ambient air enters the air duct assembly 200 through the air inlet, undergoes heat exchange on the surface of the condenser 140, and is then discharged from the air outlet 245 above the air duct assembly 200, achieving a heat dissipation effect. As a result, since the refrigeration equipment eliminates the condenser fan, the noise of the refrigeration equipment is reduced, the user experience is improved, and the reliability of the refrigeration equipment is greatly improved after the fan is eliminated. In addition, the air duct assembly 200 of the refrigerator is installed at the bottom of the refrigerator 100, that is, the condenser 140 is set at the bottom of the refrigerator 100, rather than on the side panel of the refrigerator 100, which solves the problem of the side panel getting hot in traditional refrigerators. Moreover, compared with built-in refrigerators, there is no need to reserve an excessively large gap at the bottom of the refrigerator 100 as an air inlet and outlet channel, thus increasing the height of the internal space of the refrigerator 100 and thereby increasing the volume of the refrigerator 100.

[0044] Reference Figure 3 , Figure 4 , Figure 6 , Figure 7In some embodiments, the air duct assembly 200 includes a base plate 210 and a cover plate 230 disposed on the base plate 210. The base plate 210 and the cover plate 230 define an air duct 240. One end of the base plate 210 is provided with a connecting portion 211, which is inclined upward in a direction away from the base plate 210. The condenser 140 is disposed near the connecting portion 211. Figure 6 As shown, the base plate 210 wraps around the condenser 140 from the left and lower sides. The air inlet includes a first air inlet 241, which is located at the connecting part 211 and opposite to the condenser 140. The air outlet 245 is located between the connecting part 211 and the cover plate 230. The horizontal height of the first air inlet 241 is lower than that of the air outlet 245. During the operation of the condenser 140, the surface temperature is much higher than the ambient temperature, forming a pressure difference. This creates a chimney effect in the air duct 240 of the air duct assembly 200, enhancing natural convection. Ambient air enters the air duct 240 through the first air inlet 241, passes through the surface of the condenser 140, and is discharged through the air outlet 245 located above the condenser 140, completing the heat exchange. The first air inlet 241 is located below the condenser 140 and opposite to the condenser 140. The ambient air entering from the first air inlet 241 directly enters the condenser 140 to achieve heat exchange, reducing the travel distance of the ambient air after entering the air duct 240 and contacting the condenser 140, reducing airflow resistance, further enhancing natural convection, and improving heat exchange efficiency.

[0045] Reference Figure 5 , Figure 7 In some embodiments, the air inlet includes a first air inlet 241 and a second air inlet 242 connected to the air duct 240. The first air inlet 241 is located at the connecting part 211 and is opposite to the condenser 140. The second air inlet 242 is located on the bottom plate 210 away from the condenser 140. The horizontal height of the first air inlet 241 and the second air inlet 242 is lower than the horizontal height of the air outlet 245. During the operation of the condenser 140, the surface temperature is much higher than the ambient temperature, forming a pressure difference, thereby generating a chimney effect in the air duct 240 of the air duct assembly 200, enhancing natural convection. Ambient air enters the air duct 240 through the first air inlet 241 and the second air inlet 242 respectively, passes through the surface of the condenser 140 and is discharged through the air outlet 245 located above the condenser 140, completing heat exchange. By setting the first air inlet 241 and the second air inlet 242, ambient air can enter the condenser 140 from different directions for heat exchange, thereby improving heat exchange efficiency. At the same time, the cross-sectional area of ​​the air inlet can be increased, making the cross-sectional area of ​​the air inlet much larger than that of the air outlet 245, further enhancing natural convection and further improving heat exchange efficiency.

[0046] Understandably, to enhance natural convection, the area of ​​the air inlet is greater than or equal to the area of ​​the air outlet 245.

[0047] It is understood that the first air inlet 241 and the second air inlet 242 can be set separately. For example, in some embodiments, the air duct assembly 200 is only provided with the first air inlet 241, and in other embodiments, the air duct assembly 200 is only provided with the second air inlet 242. Under the condition that the area of ​​the air inlet is greater than or equal to the area of ​​the air outlet 245, the natural convection of air in the air duct 240 can also be achieved through the chimney effect.

[0048] Reference Figure 5 , Figure 7 In some embodiments, a fourth air inlet 244 is also provided on the base plate 210 between the first air inlet 241 and the second air inlet 242. Part of the ambient air entering the air duct 240 enters from the first air inlet 241 and the second air inlet 242, and another part enters from the fourth air inlet 244, so as to further enhance natural convection and improve the heat exchange efficiency of the condenser 140, so as to ensure that the air duct assembly 200 after the condenser fan is removed can achieve the same or better heat exchange effect as the air duct assembly 200 with the condenser fan.

[0049] Reference Figure 5 , Figure 7 The first air inlet 241, the second air inlet 242 and the fourth air inlet 244 are configured as a grille structure, which can avoid opening a single hole with an excessively large area on the base plate 210 to ensure the structural strength of the air duct assembly 200, and can also ensure that the air inlet channel has a sufficient cross-sectional area to ensure that the ambient air can enter the air duct 240 through natural convection to achieve heat exchange with the condenser 140 and achieve the predetermined heat exchange efficiency.

[0050] Reference Figure 5 In some embodiments, the condenser 140 is arranged along the length of the air duct assembly 200, and correspondingly, the air inlet is arranged along the length of the air duct assembly 200. In other words, the condenser 140 is arranged laterally in the air duct assembly 200. Thus, the ambient air entering from the air inlet needs to be in complete contact with the condenser 140 to prevent the ambient air from being discharged from the air outlet 245 without flowing through the condenser 140, thereby improving the utilization rate of ambient air and thus improving the heat exchange efficiency.

[0051] Reference Figure 8 In some embodiments, the condenser 140 adopts an elongated design. Specifically, the condenser 140 includes multiple condenser tubes 141 arranged side by side, with multiple fins 142 connected to each condenser tube 141. The fins 142 are spaced apart, and the refrigerant flowing through the condenser tubes 141 conducts heat to the fins 142, and then the heat is carried away by the air flowing through the condenser 140, thereby achieving the purpose of heat exchange.

[0052] Reference Figure 8, Figure 9 In some embodiments, the condenser 140 includes multiple condenser tubes 141 arranged side by side, with multiple fins 142 fitted on each condenser tube 141. The fins 142 are spaced apart, and the distance between two adjacent fins 142 along the axial direction of the condenser tube 141 is L, where 2mm≤L≤15mm. This structure optimizes the spacing of the fins 142, balancing the enhanced natural convection velocity with the heat exchange area, so that the ambient air flowing through the condenser 140 has better wind resistance. This ensures that the natural convection of air within the duct assembly 200 can be achieved through the chimney effect, and also maximizes the heat exchange between the air flowing through the condenser 140 and the condenser 140, avoiding insufficient heat exchange and exhaust from the air outlet 245, thus enabling the duct assembly 200 to achieve better heat exchange efficiency.

[0053] Reference Figure 5 , Figure 7 In some embodiments, the base plate 210 is provided with a water receiving box 212, which is used to receive the liquid generated by the evaporator of the refrigerator 100, so as to prevent the liquid generated by the evaporator of the refrigerator 100 from soiling the usage environment during use.

[0054] Reference Figures 3 to 6 In some embodiments, a compressor compartment 250 is formed between the base plate 210 and the cover plate 230. The compressor compartment 250 is used to install the compressor 110. The compressor compartment 250 is connected to the air duct 240, so that the compressor 110 can be cooled by the ambient air flowing through the air duct 240 to avoid the compressor 110 from overheating.

[0055] Specifically, refer to Figure 7 In some embodiments, the base plate 210 is provided with a third air inlet 243, which is connected to the compressor compartment 250. After the compressor 110 starts, the condenser 140 works, and its surface temperature is much higher than the ambient temperature, forming a pressure difference. This creates a chimney effect in the air duct 240 of the air duct assembly 200, enhancing natural convection. Ambient air enters the air duct 240 through the first air inlet 241 and the second air inlet 242, and also enters the compressor compartment 250 through the third air inlet 243. The ambient air entering the compressor compartment 250 exchanges heat with the compressor 110 body, and after passing through the surface of the condenser 140, it is discharged through the air outlet 245 located above the condenser 140, completing the heat exchange.

[0056] Reference Figure 7In some embodiments, the bottom plate 210 of the compressor compartment 250 is provided with a groove 251, one end of which is connected to the water collection box 212. When the liquid in the water collection box 212 reaches a certain amount, some of the liquid can be discharged from the groove 251 to the bottom of the compressor compartment 250. The heat generated by the compressor 110 during operation can evaporate some of the liquid. Thus, the liquid in the water collection box 212 can be used to cool the compressor 110 body, and the heat generated by the compressor 110 can also evaporate some of the liquid, keeping the liquid level in the water collection box 212 at a certain height to prevent liquid from overflowing from the water collection box 212. This ensures that the liquid produced by the evaporator during the use of the refrigerator 100 will not overflow from the water collection box 212 and contaminate the environment.

[0057] Furthermore, when the liquid level in the water collection box 212 has not reached the predetermined height and cannot overflow into the groove 251, the heat generated by the compressor 110 during operation can also be transferred from the groove 251 to the liquid in the water collection box 212, thereby evaporating the liquid in the water collection box 212 and keeping the liquid level in the water collection box 212 at a certain height to prevent the liquid from overflowing from the water collection box 212, so as to ensure that the liquid generated by the evaporator of the refrigerator 100 during use will not overflow from the water collection box 212 and dirty the environment.

[0058] It should be noted that, referring to Figure 7 The second air inlet 242 and the fourth air inlet 244 are located on both sides of the water inlet box. The horizontal height of the compressor 110 mounting platform 252 in the compressor compartment 250 is higher than the horizontal height of the open position of the water inlet box 212, and the horizontal height of the open position of the water inlet box 212 is higher than the horizontal height of the fourth air inlet 244. In extreme cases, when the liquid level in the water inlet box 212 is too high, the liquid can overflow from the open position of the water inlet box 212 and be discharged through the second air inlet 242 and the fourth air inlet 244, thereby preventing the liquid from entering the compressor 110.

[0059] Reference Figure 7 In some embodiments, the water receiving box 212 and the base plate 210 are integrated into one piece to reduce the number of parts in the air duct assembly 200, reduce assembly steps, and thus reduce the amount of assembly work.

[0060] It is understandable that the water receiving box 212 and the base plate 210 can also be a detachable separate structure. When a separate structure is adopted, the water receiving box 212 can be fixedly connected to the base plate 210 by screws or other fasteners.

[0061] Reference Figure 1 , Figure 2In some embodiments, the cabinet 120 is provided with a door 130, and the air duct assembly 200 is located on the bottom of the cabinet 120 near the door 130. Both the first air inlet 241 and the air outlet 245 face the door 130. Therefore, since the air inlet and outlet 245 of the air duct assembly 200 are both located close to the door 130, the refrigerator 100 using this air duct assembly 200 assembly structure can be embedded in a cabinet without requiring a large gap at the bottom of the refrigerator 100 as an air inlet / outlet channel. This increases the height of the internal space of the refrigerator 100, thereby increasing its volume.

[0062] Reference Figure 1 , Figure 2 The bottom of the door 130 has an extension 131, and a grille hole 132 is provided on the extension 131. The position of the grille hole 132 is opposite to the air outlet 245 of the air duct assembly 200. The hot air discharged from the air duct assembly 200 can be discharged through the grille hole 132 to avoid the hot air discharged from the air duct assembly 200 from mixing with the ambient air entering the air duct assembly 200, thereby preventing the hot air discharged from the air duct assembly 200 from being sucked back into the air inlet, thus ensuring the heat exchange efficiency of the air duct assembly 200.

[0063] It is understandable that when the refrigerator 100 is used in a relatively open environment, such as when it is not a built-in refrigerator, or when the distance between the back of the refrigerator and the cabinet meets certain requirements, the air duct assembly 200 can also be set on the bottom of the refrigerator 120 away from the door 130. In this way, the hot air discharged from the air duct assembly 200 can be dissipated using the space at the back of the refrigerator. This is not limited here.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A refrigeration device, characterized in that, include: A condenser is used to connect to the compressor of the refrigeration equipment; An air duct assembly is located at the bottom of the housing of the refrigeration equipment. The air duct assembly has an internal air duct, and the condenser is located inside the air duct. The air duct assembly has an air inlet and an air outlet that communicate with the air duct. The air outlet is located above the condenser and is positioned higher than the air inlet so that the air entering through the air inlet can be naturally discharged from the air outlet after being heated and expanded by the condenser.

2. The refrigeration equipment according to claim 1, characterized in that, The air duct assembly includes a base plate and a cover plate disposed on the base plate. The base plate and the cover plate define the air duct. One end of the base plate is provided with a connecting portion. The connecting portion is inclined upward in a direction away from the base plate. The condenser is disposed near the connecting portion. The air inlet includes a first air inlet, which is disposed on the connecting portion and opposite to the condenser.

3. The refrigeration equipment according to claim 2, characterized in that, The air inlet includes a second air inlet that communicates with the air duct, and the second air inlet is located on the side of the base plate away from the condenser.

4. The refrigeration equipment according to claim 1, characterized in that, The area of ​​the air inlet is greater than or equal to the area of ​​the air outlet.

5. The refrigeration equipment according to claim 1, characterized in that, The condenser is arranged along the length of the air duct assembly, and the air inlet is arranged along the length of the air duct assembly.

6. The refrigeration equipment according to claim 1, characterized in that, The condenser includes a condenser tube and multiple fins connected to the condenser tube. Along the axial direction of the condenser tube, the distance between two adjacent fins is L, where 2mm≤L≤15mm.

7. The refrigeration equipment according to claim 2, characterized in that, A press chamber is formed between the base plate and the cover plate, and the press chamber is connected to the air duct.

8. The refrigeration equipment according to claim 7, characterized in that, The base plate is provided with a third air inlet, which is connected to the compressor compartment.

9. The refrigeration equipment according to claim 7 or 8, characterized in that, The bottom plate at the press chamber is provided with a groove, and one end of the groove is connected to the water receiving box.

10. The refrigeration equipment according to claim 1, characterized in that, The enclosure is provided with a door, the air duct assembly is located at the bottom of the enclosure near the door, and the air outlet is located at the side of the enclosure near the door.