Refrigeration equipment

Abstract

The utility model discloses refrigeration equipment, and relates to the technical field of refrigeration, the refrigeration equipment comprises an outer shell, a water pan and a drainage pipe, the outer shell is provided with a shell body used for containing an evaporator; the water pan is positioned below the shell; the upper end of the water drainage pipe is installed at the bottom of the shell and communicated with the shell, the lower end of the water drainage pipe extends into the water receiving disc, after frost is formed on the surface of an evaporator and is defrosted, formed defrosting water is discharged into the water receiving disc from the water drainage pipe, and the defrosting water flows into the water receiving disc along with rising of the liquid level. The lower end of the water drainage pipe is immersed in defrosting water of the water pan and located below the liquid level, water seal is formed, and cold air in the shell is prevented from sinking, so that the temperature in the water pan is reduced, and the evaporation efficiency is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a refrigeration device. Background Art

[0002] During refrigeration equipment operation, when the evaporator is operating, its surface temperature is typically lower than the dew point of the surrounding air. Consequently, water vapor in the air condenses on the evaporator surface, forming water droplets. In the freezer compartment, due to the extremely low temperature, this condensed water freezes on the evaporator surface, forming frost. Automatic defrosting causes the frost to melt and turn into water. If this defrost water is not promptly drained, it can cause equipment failure or affect performance.

[0003] In the prior art, a water pan is placed on top of the compressor, below the drain port of the housing housing the evaporator. Heat from the compressor is used to heat the defrost water in the pan, achieving automatic evaporation. However, this also reduces the temperature of the pan due to the sinking of cold air inside the housing, which leaks through the drain hole into the pan. This sinking of cold air also lowers the temperature at the drain hole, making condensation more likely to form. This increases the amount of water in the pan and affects the evaporation efficiency of the defrost water. Utility Model Content

[0004] The main purpose of the utility model is to provide a refrigeration device, aiming to solve the problem of low evaporation efficiency of defrosting water in existing refrigeration devices during defrosting.

[0005] To achieve the above-mentioned purpose, the refrigeration equipment proposed by the present invention includes:

[0006] a housing having a shell for accommodating the evaporator;

[0007] a water receiving tray, located below the housing; and

[0008] A drain pipe, the upper end of which is mounted on the bottom of the shell and is in communication with the shell, and the lower end of which extends into the water receiving tray.

[0009] In one embodiment, the lower end of the drain pipe is configured to have an oblique opening.

[0010] In one embodiment, the drain pipe includes a fixed section and a sleeve section that are connected in sequence, the fixed section is fixed to the bottom of the shell, and the sleeve section is sleeved with the fixed section.

[0011] In one embodiment, the sleeve section is sleeved on the periphery of the fixed section.

[0012] In one embodiment, the refrigeration device further includes a heat-insulating layer, and the heat-insulating layer is provided on the outer side of the upper end of the drain pipe.

[0013] In one embodiment, the thermal insulation layer is made of PE sponge.

[0014] In one embodiment, the refrigeration equipment further includes a compressor, and the water receiving pan is arranged on top of the compressor.

[0015] In one embodiment, the refrigeration device includes a heat conducting layer disposed between the water tray and the compressor.

[0016] In one embodiment, the heat conductive layer includes a metal layer.

[0017] In one embodiment, the heat-conducting layer further includes heat-conducting glue for padding between the compressor and the water receiving pan.

[0018] In one embodiment, the refrigeration device comprises a medical refrigerator or a refrigerator.

[0019] In the technical solution of the present invention, a water receiving pan is arranged below a shell for accommodating an evaporator, a drain pipe is arranged at the bottom of the shell, and is connected to the shell, the lower end of the drain pipe extends into the water receiving pan, and frost is formed on the surface of the evaporator. After defrosting, the defrosted water formed is discharged from the drain pipe into the water receiving pan. As the liquid level rises, the lower end of the drain pipe is immersed in the defrost water in the water receiving pan. The lower end of the drain pipe is located below the liquid level, forming a water seal to prevent the cold air in the shell from sinking, thereby reducing the temperature in the water receiving pan and affecting the evaporation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of an embodiment of a refrigeration device provided by the present utility model;

[0022] Figure 2 for Figure 1 A partial cross-sectional diagram of .

[0023] Description of Figure Numbers:

[0024] 100. Refrigeration equipment; 1. Housing; 2. Drain pan; 3. Drain pipe; 31. Fixed section; 32. Socket section; 4. Insulation layer; 5. Compressor; 6. Heat-conducting layer.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] During refrigeration equipment operation, ice forms on the evaporator, forming frost. When the evaporator defrosts, the resulting defrost water needs to be promptly drained and evaporated. Conventional technology employs a water pan located on top of the compressor, below the drain port of the housing housing the evaporator. Heat from the compressor heats the defrost water in the pan, achieving automatic evaporation. However, as cold air sinks within the housing, it leaks through the drain port into the pan, lowering the pan's temperature and affecting the evaporation efficiency of the defrost water.

[0030] The utility model provides a refrigeration device, aiming to solve the problem of low evaporation efficiency of defrosting water in existing refrigeration devices during defrosting.

[0031] See also Figure 1 and Figure 2In one embodiment of the present invention, the refrigeration device 100 includes a shell, a water receiving tray 2 and a drain pipe 3, the shell having a shell 1 for accommodating an evaporator; the water receiving tray 2 is located below the shell 1; the upper end of the drain pipe 3 is installed at the bottom of the shell 1 and is connected to the shell 1, and the lower end of the drain pipe 3 extends into the water receiving tray 2.

[0032] It is understandable that the evaporator is arranged in the shell 1. When the refrigerant evaporates in the evaporator, it absorbs heat from the surrounding air, thereby reducing the surface temperature of the evaporator. When the surface temperature of the evaporator is lower than the dew point temperature of the surrounding air, the water vapor in the air will condense on the surface of the evaporator. It should be noted that the dew point temperature refers to the temperature at which water vapor in the air begins to condense into liquid water. When water vapor in the air encounters a surface with a temperature lower than the dew point (such as an evaporator), the water vapor will cool and turn into liquid water to form condensed water. In the freezer, due to the extremely low temperature, the condensed water will freeze on the surface of the evaporator to form frost. Defrosting water will be formed during defrosting.

[0033] In the related art, in order to prevent moisture accumulation from causing equipment failure, a drain port is set at the bottom or rear of the refrigerator. The cold air in the shell sinks and leaks into the water receiving tray through the drain hole, reducing the area near the water receiving tray.

[0034] The lower end of the drain pipe 3 extends into the water receiving pan 2. When the defrost water is discharged, the defrost water level rises, so that the lower end of the drain pipe 3 can be immersed in the defrost water. The presence of the defrost water will form a "barrier" and a water seal, making it difficult for the cold air to sink into the water receiving pan 2 through the drain pipe 3, which can effectively prevent the cold air from being lost through the drain pipe 3, thereby maintaining the cold air circulation efficiency inside the refrigerator and further improving the refrigeration effect.

[0035] In the technical solution of the present invention, a water receiving pan 2 is arranged below a shell 1 for accommodating an evaporator, a drain pipe 3 is arranged at the bottom of the shell, and is connected to the shell 1, and the lower end of the drain pipe 3 extends into the water receiving pan 2. After the defrost water is discharged from the drain pipe 3 into the water receiving pan 2, as the liquid level rises, the lower end of the drain pipe 3 is immersed in the defrost water in the water receiving pan 2, and the lower end of the drain pipe 3 is located below the liquid level, forming a water seal to prevent the cold air in the shell from sinking, thereby reducing the temperature in the water receiving pan 2 and affecting the evaporation efficiency.

[0036] Further, see Figure 2 In this embodiment, the lower end of the drain pipe 3 is set to be an oblique opening.

[0037] It is understandable that if the drain pipe 3 is configured with a flat opening, the flat opening and the bottom of the water receiving tray 2 will form a relatively closed space. Water may encounter greater resistance when entering the drain pipe 3, resulting in poor flow. The retention of water at the flat opening may be affected by surface tension, resulting in reduced fluidity of the water flow, and it is easy for the water to accumulate at the drain outlet instead of flowing out smoothly.

[0038] The lower end of the drain pipe 3 is configured as an oblique opening. When the defrost water flows out from the oblique opening, the flow is smooth and the flow rate is generally faster, thereby reducing the retention time in the drain pipe 3 and improving drainage efficiency. It can also reduce the resistance of the water flow, allowing the water to flow out more smoothly and avoiding the formation of water stagnation in the drain pipe 3.

[0039] For further information, please refer to Figure 2 In this embodiment, the drain pipe 3 includes a fixed section 31 and a sleeve section 32 connected in sequence. The fixed section 31 is fixed to the bottom of the shell 1, and the sleeve section 32 is sleeved with the fixed section 31.

[0040] It should be noted that the fixing section 31 is installed at the bottom of the shell 1. The fixing section 31 and the bottom of the shell 1 can be integrally provided or separately provided. When the fixing section 31 and the bottom of the shell 1 are integrally provided, that is, when the shell 1 is formed, the fixing section 31 is a section protruding from the bottom of the shell 1; when the fixing section 31 and the bottom of the shell 1 are separately provided, a connecting hole can be opened on the shell 1, and the fixing section 31 is installed in the connecting hole.

[0041] The fixing section 31 securely mounts the drain pipe 3 on the bottom of the housing 1, ensuring that the drain pipe 3 does not move during use and remains in the correct position, thereby ensuring the stability and effectiveness of the drain pipe 3. The sleeve section 32 is used for flexible connection and position adjustment, allowing for convenient adjustment or replacement during installation or maintenance.

[0042] Such an arrangement enables the drain pipe 3 to flexibly respond to different drainage requirements on a fixed basis, ensuring a smooth and efficient drainage process, thereby effectively draining defrost water and preventing water from accumulating in the housing 1 .

[0043] For further information, please refer to Figure 2 In this embodiment, the sleeve section 32 is sleeved on the periphery of the fixed section 31 .

[0044] The inner diameter of the sleeve section 32 is larger than the outer diameter of the fixed section 31, allowing it to more securely surround the fixed section 31, thereby enhancing the structural stability of the entire drain pipe 3 system and reducing displacement or loosening caused by water flow or external forces. If the inner diameter of the fixed section 31 is too large, fitting the sleeve section 32 within the fixed section 31 may cause the sleeve section 32 to be unstable or easily damaged by water flow. Furthermore, the larger inner diameter of the sleeve section 32 reduces the flow resistance of the fluid within the drain pipe 3, improving drainage efficiency and ensuring smooth fluid flow.

[0045] In terms of maintenance and repair, if the sleeve section 32 is arranged outside the fixed section 31, disassembly and repair can be performed more conveniently without having to consider the limited inner diameter of the drain pipe 3. In addition, the sleeve section 32 is arranged outside the fixed section 31, which makes the overall appearance neater and avoids the unsightly appearance caused by the exposed fixed section 31.

[0046] Furthermore, in this embodiment, the refrigeration device 100 further includes a heat-insulating layer 4 , which is disposed on the outer side of the upper end of the drain pipe 3 .

[0047] The thermal insulation layer 4 reduces the heat exchange rate between the surface of the drain pipe 3 and the surrounding air, so that the heat in the drain pipe 3 is not easily dissipated, and can effectively isolate the external environment from the temperature inside the drain pipe 3, reduce the temperature fluctuation on the surface of the drain pipe 3, and keep the temperature inside the drain pipe 3 relatively stable, avoiding a sudden drop in the surface temperature of the drain pipe 3 due to changes in the external temperature, thereby reducing the possibility of condensation water formation.

[0048] It should be noted that the insulation layer 4 can be PE sponge (polyethylene sponge), or polyurethane (PU) foam, mineral wool (rock wool or glass wool, rubber and plastic insulation material, polyethylene foam (PE Foam), polystyrene (EPS / XPS), fiber insulation material, aluminum foil composite material, aerogel, etc. The specific design can be based on actual conditions, and this specification embodiment is not limited to this.

[0049] Specifically, in this embodiment, the insulation layer 4 is made of PE sponge. PE sponge is a polyethylene-based foam material. Due to its low thermal conductivity, PE sponge can effectively isolate heat conduction, maintain temperature stability, and prevent heat loss. PE sponge has a low density and is light, making it easy to carry and install. PE sponge also has excellent waterproof properties and is not easily water-absorbent, making it suitable for use in humid environments. PE sponge has significant advantages in terms of thermal insulation, sound insulation, chemical resistance, flexibility, elasticity, and protection, making it suitable for use in this scenario.

[0050] For further information, please refer to Figure 1 and Figure 2 In this embodiment, the refrigeration equipment 100 further includes a compressor 5 , and the water receiving tray 2 is arranged on the top of the compressor 5 .

[0051] It should be noted that the compressor 5 generates a lot of heat during operation, especially during the compression process and gas expansion. Placing the water receiving pan 2 on top of the compressor 5 can transfer the heat of the compressor 5 to the water receiving pan 2 through direct contact, thereby heating the defrost water in the pan.

[0052] When the compressor 5 is working, the heat at the top will cause the surrounding air temperature to rise, forming natural convection. Hot air rises and cold air falls. This flow can accelerate the transfer of heat, making the defrost water in the water receiving tray 2 quickly heat up.

[0053] Higher water temperature will promote the evaporation of defrost water. By heating, the evaporation rate of water in the water receiving tray 2 is increased, which helps to reduce the accumulation of water, keep the system dry, and reduce the negative impact on the equipment.

[0054] By utilizing the heat generated by the compressor 5 itself to heat the defrost water in the water receiving tray 2 , the energy consumption required for external heating can be reduced, thereby improving the energy efficiency of the system.

[0055] For further information, please refer to Figure 1 and Figure 2 In this embodiment, the refrigeration device 100 includes a heat-conducting layer 6 disposed between the water receiving pan 2 and the compressor 5 .

[0056] The material of the heat-conducting layer 6 can be selected from a material with high thermal conductivity (such as copper, aluminum, etc.), so as to improve the efficiency of heat transfer from the compressor 5 to the water receiving pan 2 and ensure that the defrost water can be heated quickly.

[0057] The heat-conducting layer 6 helps evenly distribute the heat released by the compressor 5, preventing any portion of the water tray 2 from overheating or overcooling. This ensures a more uniform temperature for the defrost water, helping to improve the overall performance of the system. Furthermore, the heat-conducting layer 6 can be designed to have a certain degree of thermal insulation to prevent heat loss during the heat transfer process, ensuring that most of the heat is effectively used to heat the water tray 2, thereby improving energy utilization.

[0058] Specifically, in this embodiment, the heat conducting layer 6 includes a metal layer.

[0059] Metal materials (such as aluminum and copper) typically have high thermal conductivity, enabling rapid and efficient heat transfer, thereby improving heat exchange efficiency. Furthermore, metals maintain excellent physical and chemical properties even under high-temperature conditions, effectively handling the high-temperature environments generated during the operation of compressor 5 and reducing the risk of material aging and failure.

[0060] Preferably, the metal layer comprises aluminum foil. Aluminum has a high thermal conductivity (approximately 235 W / m·K), effectively transferring heat from the compressor 5 to the water pan 2, improving heat exchange efficiency. Aluminum's relatively low density (approximately 2.7 g / cm³) makes the aluminum foil lightweight, achieving good thermal conductivity without adding burden, contributing to the lightweight design of the entire device.

[0061] In this embodiment, the heat-conducting layer 6 further includes heat-conducting glue for padding between the compressor 5 and the water receiving tray 2 .

[0062] It should be noted that since the top of the compressor 5 is not a regular plane but has concave and convex surfaces, when the water receiving tray 2 rests against the top of the compressor 5, there is a gap between the two. Therefore, the heat generated by the compressor 5 cannot be fully transferred to the water receiving tray 2, resulting in heat loss.

[0063] It should also be noted that thermal conductive adhesive is an adhesive with good thermal conductivity, which is mainly used to achieve heat conduction between different materials.

[0064] The thermally conductive adhesive fills any unevenness and gaps between the top of the compressor and the water pan 2, ensuring better contact between the two, reducing the presence of air pockets, and improving heat transfer efficiency. Furthermore, the high thermal conductivity of the thermally conductive adhesive allows heat to be transferred more quickly from the compressor 5 to the water pan 2, thereby optimizing the heat exchange process. The thermally conductive adhesive can effectively reduce heat loss during the transfer process, lowering the energy consumption of the compressor 5 and improving the energy efficiency of the system.

[0065] In addition, the compressor 5 will vibrate due to the movement of the internal cylinder during operation. When it comes into hard contact with the water receiving pan 2, it will resonate and generate noise. The thermal conductive adhesive can provide a certain buffering effect, absorb the vibration and impact during the operation of the compressor 5, reduce the mechanical stress on the water receiving pan 2, and reduce the risk of equipment damage.

[0066] The thermally conductive adhesive is sticky and provides adhesive force, thereby forming a stronger bond between the compressor 5 and the water receiving tray 2, enhancing the stability of the overall structure and avoiding loosening or displacement during operation.

[0067] By using thermally conductive adhesive between the top of the compressor 5 and the water tray 2, the gap caused by the uneven surface can be effectively filled, the heat conduction efficiency can be improved, energy consumption can be reduced, the heat dissipation performance can be improved, and at the same time, the structural stability can be enhanced, vibration and noise can be reduced, and the overall operating performance of the equipment can be optimized.

[0068] Specifically, in this embodiment, the refrigeration device 100 includes a medical refrigerator or a refrigerator.

[0069] A medical refrigerator is a refrigeration device specially designed for storing and protecting medical supplies, medicines, vaccines, biological samples, etc., ensuring that critical items are kept at appropriate temperatures.

[0070] The refrigerator is used to store and preserve food, beverages and other items. Of course, the refrigeration equipment 100 is not limited to including the medical refrigerator or refrigerator, and can also be a freezer, or a display cabinet, etc., which will not be described in detail here.

[0071] By providing the drain pipe 3 in the medical refrigerator and the refrigerator, it is possible to prevent the cold air in the shell from sinking, thereby lowering the temperature in the water receiving tray 2 and affecting the evaporation efficiency.

[0072] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A refrigeration device, characterized in that: include: a housing having a shell for accommodating the evaporator; a water receiving tray, located below the housing; and A drain pipe, the upper end of which is mounted on the bottom of the shell and is in communication with the shell, and the lower end of which extends into the water receiving tray.

2. The refrigeration equipment according to claim 1, characterized in that The lower end of the drain pipe is arranged as an oblique opening.

3. The refrigeration equipment according to claim 1, characterized in that The drain pipe includes a fixed section and a sleeve section which are connected in sequence. The fixed section is fixed to the bottom of the shell, and the sleeve section is sleeved with the fixed section.

4. The refrigeration equipment according to claim 3, characterized in that The sleeve section is sleeved on the periphery of the fixed section.

5. The refrigeration equipment according to claim 3, characterized in that The refrigeration equipment further includes a heat-insulating layer, which is arranged on the outer side of the upper end of the drain pipe.

6. The refrigeration equipment according to claim 5, characterized in that The material of the thermal insulation layer includes PE sponge material.

7. The refrigeration equipment according to claim 1, characterized in that The refrigeration equipment further includes a compressor, and the water receiving pan is arranged on the top of the compressor.

8. The refrigeration equipment according to claim 7, characterized in that The refrigeration device includes a heat conducting layer disposed between the water receiving pan and the compressor.

9. The refrigeration equipment according to claim 8, characterized in that The heat-conducting layer includes a metal layer.

10. The refrigeration equipment according to claim 8, characterized in that The heat-conducting layer further comprises a heat-conducting glue used for padding between the compressor and the water receiving tray.

11. The refrigeration device according to claim 1, wherein: The refrigeration equipment includes a medical refrigerator or a refrigerator.

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