Refrigeration equipment
By combining a dehumidification chamber and an evaporator coil on the inner wall of the refrigeration unit, the problem of insufficient dehumidification capacity of ice-lined refrigerators is solved, achieving more efficient dehumidification and heat preservation effects, making it suitable for storing medicines, vaccines, and other items.
Patent Information
- Application Number
- CN202511553490.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-01-06
AI Technical Summary
Ice-lined refrigerators have weak dehumidification capabilities and cannot effectively lower the dew point temperature of the air inside the box, resulting in poor insulation performance.
A dehumidification chamber is set on the inner wall of the refrigeration equipment, and part of the evaporator coil is wrapped around the outside so that it is located inside the dehumidification chamber. The airflow in the refrigeration chamber exchanges heat with the evaporator coil through the dehumidification chamber to dehumidify. Combined with the cold storage layer and intelligent control system, the working state of the refrigeration system is optimized to improve the dehumidification effect.
It achieves effective dehumidification of the refrigeration room, improves the dehumidification effect and heat preservation capacity of the refrigeration equipment, ensures the stability of temperature and humidity, and is suitable for storing items with strict temperature and humidity requirements, such as medicines and vaccines.
Smart Images
Figure CN121274530A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of refrigeration technology, such as a refrigeration device. Background Technology
[0002] Currently, pharmaceuticals and vaccines have strict requirements for the temperature and humidity of their storage environment. On the one hand, storing items in an optimal temperature and humidity environment can prevent moisture loss and spoilage due to excessively high or low temperatures. On the other hand, reducing humidity can decrease the growth of mold caused by excessive humidity, ultimately reducing the probability of spoilage. Air-cooled refrigeration units use finned evaporators. A fan forces air from the storage compartment through the finned evaporator, allowing direct heat exchange between the evaporator and the air inside the unit. The finned evaporator's temperature is lower than the dew point temperature of the air in the storage compartment, achieving humidity control. However, because the finned evaporator directly exchanges heat with the air, and air has a low heat storage capacity, the insulation performance of this type of refrigeration unit is relatively poor.
[0003] The related technology discloses an ice-lined refrigerator box, in which the evaporator and the heat storage material exchange heat, the heat storage material is in contact with the inner liner, and the inner liner exchanges heat with the air inside the box to achieve the purpose of reducing the temperature inside the box. The temperature inside the ice-lined refrigerator box and the temperature of the inner liner are both between 2℃ and 8℃, which can improve the heat preservation effect.
[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art: In related technologies, although the insulation capacity of ice-lined refrigerators has been improved, the dehumidification capacity of ice-lined refrigerators is relatively weak because the temperature of the inner liner cannot reach the dew point temperature of the air inside the refrigerator.
[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention
[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.
[0007] This disclosure provides a refrigeration device to improve the dehumidification effect of an ice-lined refrigerator.
[0008] This disclosure provides a refrigeration device, which includes: an inner liner with a refrigeration chamber inside, and a dehumidification chamber on the side wall of the inner liner; an evaporator coil wrapped around the outside of the inner liner, with a portion of the evaporator coil located inside the dehumidification chamber; wherein the dehumidification chamber is connected to the refrigeration chamber, and airflow in the refrigeration chamber can flow into the dehumidification chamber to exchange heat with the evaporator coil for dehumidification.
[0009] In some alternative embodiments, the inner liner has a dehumidification vent on its side wall, and the refrigeration device further includes: A dehumidifier cover is installed on the side of the dehumidifier opening away from the refrigeration chamber, and the dehumidifier cover and the inner liner enclose a dehumidifier cavity. The dehumidification hood has perforations, through which the evaporator coil is inserted into the dehumidification chamber.
[0010] In some alternative embodiments, the refrigeration equipment further includes: a sealing plate disposed between the evaporator coil and the perforation for sealing the perforation and the connection between the perforation and the evaporator coil; and / or, the bottom of the dehumidification hood is provided with a drain groove and a drain outlet, and the refrigeration equipment further includes: a drain pipe connected to the drain outlet for draining water from the dehumidification chamber.
[0011] In some alternative embodiments, the refrigeration equipment further includes: a fan housing covering the side of the dehumidification chamber facing the refrigeration room; a fan located inside the dehumidification chamber; wherein the dehumidification chamber has an air inlet and an air outlet, and the fan can drive the airflow in the refrigeration room to flow into the dehumidification chamber from the air inlet and then flow back into the refrigeration room from the air outlet.
[0012] In some alternative embodiments, the refrigeration equipment further includes: a door covering the opening of the refrigeration compartment; wherein the air outlet faces the door so that the air from the dehumidification chamber can be blown back into the refrigeration compartment by the obstruction of the door.
[0013] In some alternative embodiments, the evaporator coil includes a dehumidifying evaporator section and a cooling evaporator section. The dehumidifying evaporator section is located inside the dehumidifying chamber, and the cooling evaporator section is located on the outside of the inner liner for cooling the cooling compartment. The dehumidification evaporation section can be connected upstream of the refrigeration evaporation section.
[0014] In some alternative embodiments, the refrigeration equipment further includes: a refrigeration system comprising a compressor, a condenser, a throttling device, and an evaporator coil connected in sequence; a cold storage layer disposed between the inner liner and the evaporator coil, with at least a portion of the refrigeration evaporation section attached to the outside of the cold storage layer; and a controller electrically connected to the refrigeration system and the fan, the controller being configured to control the operation of the refrigeration system and the fan.
[0015] In some alternative embodiments, when the temperature of the cooling chamber is greater than or equal to a first set temperature and the temperature of the cold storage layer is greater than or equal to a second set temperature, the controller is configured to control the cooling system to start and control the fan to start after a first delay; and / or, When the temperature in the cooling room is lower than the first set temperature, and the temperature in the cold storage layer is greater than or equal to the second set temperature, the controller is configured to control the cooling system to turn on and the fan to turn off; and / or, When the temperature in the cooling room is lower than the first set temperature and the temperature in the cold storage layer is lower than the second set temperature, the controller is configured to control the cooling system to stop working.
[0016] In some alternative embodiments, the refrigeration equipment further includes: a bypass line connecting the outlet of the dehumidifying evaporator and the outlet of the refrigerating evaporator; and a control valve located at the inlet end of the bypass line for controlling the flow of refrigerant from the dehumidifying evaporator to the refrigerating evaporator or back to the compressor via the bypass line.
[0017] In some alternative embodiments, when the humidity in the cooling room is greater than or equal to the set humidity, the controller is configured to control the control valve to connect the outlet of the dehumidification evaporator to the bypass pipe, control the operation of the cooling system, and control the fan to start after a second delay.
[0018] The refrigeration equipment provided in this disclosure can achieve the following technical effects: In this embodiment, a portion of the evaporator coil is located within the dehumidification chamber, which lowers the temperature of the chamber to dehumidify the airflow entering it. The dehumidification chamber is connected to the refrigeration compartment, allowing airflow from the refrigeration compartment to flow into the dehumidification chamber for dehumidification. When the refrigeration equipment is an ice-lined refrigerator, the connection between the dehumidification chamber and the refrigeration compartment allows air from the refrigeration compartment to flow into the dehumidification chamber and directly contact the evaporator coil, thereby lowering the air temperature within the dew point and effectively dehumidifying the refrigeration compartment, thus improving the dehumidification effect.
[0019] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description
[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein: Figure 1 This is a schematic diagram of the structure of a refrigeration device provided in an embodiment of this disclosure; Figure 2 This is a partial structural schematic diagram of a refrigeration device provided in an embodiment of this disclosure; Figure 3 This is a partial structural schematic diagram of another refrigeration device provided in an embodiment of this disclosure; Figure 4This is a partial structural schematic diagram of another refrigeration device provided in an embodiment of this disclosure; Figure 5 yes Figure 4 A magnified structural diagram of part A in the middle; Figure 6 This is a partial structural schematic diagram of another refrigeration device provided in an embodiment of this disclosure; Figure 7 yes Figure 6 A magnified structural diagram of part B in the middle section; Figure 8 This is a schematic diagram of the structure of a dehumidifier hood provided in an embodiment of this disclosure from one perspective; Figure 9 This is a schematic diagram of the structure of a dehumidifier hood provided in an embodiment of this disclosure from another perspective; Figure 10 This is a schematic diagram of the structure of a fan housing provided in an embodiment of this disclosure; Figure 11 This is a schematic diagram of the structure of a refrigeration system provided in an embodiment of this disclosure; Figure 12 This is a schematic diagram of another refrigeration system provided in an embodiment of this disclosure.
[0021] Figure label: 10. Inner liner; 11. Refrigeration compartment; 12. Dehumidification port; 13. Dehumidification chamber; 14. Dehumidification hood; 141. Perforation; 142. Sealing plate; 143. Drainage trough; 145. Drainage pipe; 20. Evaporator coil; 21. Refrigeration evaporator section; 22. Dehumidification evaporator section; 30. Fan casing; 31. Air outlet; 40. Cold storage layer; 50. Box shell; 51. Insulation layer; 60. Compressor; 61. Condenser; 62. Throttling device; 63. Control valve; 64. Bypass pipeline; 65. Dryer filter; 66. Liquid receiver; 67. Compressor compartment. Detailed Implementation
[0022] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.
[0023] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for describing embodiments of this disclosure herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0024] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.
[0025] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.
[0026] Unless otherwise stated, the term "multiple" means two or more.
[0027] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.
[0029] Combination Figures 1 to 12 As shown, this embodiment of the present disclosure provides a refrigeration device, which includes an inner liner 10 and an evaporator coil 20. The inner liner 10 has a refrigeration chamber 11 inside and a dehumidification chamber 13 on the side wall of the inner liner 10. The evaporator coil 20 is arranged around the outside of the inner liner 10, and part of the evaporator coil 20 is located in the dehumidification chamber 13. The dehumidification chamber 13 is connected to the refrigeration chamber 11, and the airflow in the refrigeration chamber 11 can flow into the dehumidification chamber 13 to exchange heat with the evaporator coil 20 for dehumidification.
[0030] In this embodiment, the evaporator coil 20 is arranged around the outside of the inner liner 10 to provide cooling capacity to the inner liner 10 and the refrigeration compartment 11, thereby achieving refrigeration of the refrigeration equipment. By setting a dehumidification chamber 13 on the side wall of the inner liner 10 and placing part of the evaporator coil 20 therein, the airflow in the refrigeration compartment 11 can flow into the dehumidification chamber 13 and directly contact the evaporator coil 20 for heat exchange, achieving effective dehumidification of the refrigeration compartment 11 without the need for an additional independent dehumidification device, simplifying the structure of the refrigeration equipment. At the same time, the refrigeration characteristics of the evaporator coil 20 are used to combine refrigeration and dehumidification functions, improving the overall energy efficiency of the refrigeration equipment. In particular, when the refrigeration equipment is an ice-lined refrigerator, the temperature in the dehumidification chamber 13 can be effectively reduced to the dew point temperature, so that the water vapor in the refrigeration compartment 11 can be liquefied to achieve dehumidification and improve the dehumidification effect.
[0031] It is understood that the dehumidification method of this application is not only applicable to ice-lined refrigerators, but also to air-cooled or direct-cooled refrigeration equipment.
[0032] Optionally, such as Figure 3 and Figure 4 As shown, the evaporator coil 20 is arranged in multiple loops around the outer side of the inner liner 10 to ensure the uniformity of the cooling supply.
[0033] Optionally, such as Figures 3 to 7 As shown, the inner liner 10 has a dehumidification port 12 on its side wall. The refrigeration equipment also includes a dehumidification hood 14, which covers the side of the dehumidification port 12 away from the refrigeration chamber 11. The dehumidification hood 14 and the inner liner 10 enclose a dehumidification cavity 13. The dehumidification hood 14 has a perforation 141, through which the evaporator coil 20 is inserted into the dehumidification cavity 13.
[0034] In this embodiment, the inner liner 10 has a dehumidification port 12 on its side wall, so that the airflow in the refrigeration chamber 11 can flow into the dehumidification chamber 13. The dehumidification cover 14 is placed on the outside of the dehumidification port 12, which also facilitates the insertion of the evaporator coil 20 on the outside of the inner liner 10 into the dehumidification chamber 13. The dehumidification cover 14 can form the dehumidification chamber 13, so that the airflow can fully exchange heat with the evaporator coil 20 in the dehumidification chamber 13, thereby improving the dehumidification efficiency.
[0035] Optionally, the number of perforations 141 is multiple, and multiple perforations 141 can increase the number of evaporator coils 20 inserted into the dehumidification chamber 13.
[0036] Optionally, such as Figure 8 and Figure 9As shown, the dehumidification hood 14 has perforations 141 on both sides, so that the evaporator coil 20 can be inserted into the dehumidification chamber 13 through the perforation 141 on one side of the dehumidification hood 14 and then exit the dehumidification chamber 13 through the perforation 141 on the other side, so as to facilitate the extension of the evaporator coil 20. In this way, the evaporator coil 20 does not need to change its structure and direction, the dehumidification structure is simple, the cost is low, and it will not affect the refrigeration effect of the refrigeration equipment.
[0037] Optionally, the refrigeration equipment also includes a heat insulation layer located between the evaporator coil 20 and the inner liner 10 at the outer edge of the dehumidification port 12. The heat insulation layer is used to prevent the evaporator coil 20 from directly contacting the inner liner 10, so as to avoid the low temperature of the evaporator coil 20 being directly transferred to the inner liner 10, causing the temperature of the inner liner 10 to be too low, affecting the temperature of the inner liner 10, and thus affecting the storage of items inside the inner liner 10.
[0038] Alternatively, the insulation layer may be made of foam board, such as polyurethane foam board or polystyrene foam board.
[0039] Optionally, such as Figure 5 As shown, the refrigeration equipment also includes a sealing plate 142, which is disposed between the evaporator coil 20 and the perforation 141, and is used to seal the perforation 141 and the connection between the perforation 141 and the evaporator coil 20.
[0040] In this embodiment, the sealing plate 142 can effectively seal the perforation 141 and the connection between the perforation 141 and the evaporator coil 20, preventing the cold energy in the dehumidification chamber 13 from leaking out and the airflow in the refrigeration chamber 11 from flowing out directly without treatment, thus ensuring the dehumidification effect and reducing the loss of cold energy.
[0041] Optionally, sealant is filled between the sealing plate 142 and the evaporator coil 20, between the sealing plate 142 and the inner liner 10, and between the sealing plate 142 and the dehumidification cover 14, which can improve the sealing effect of the dehumidification chamber 13 and prevent water vapor or even water droplets in the refrigeration chamber 11 from entering the foaming layer.
[0042] Optionally, such as Figure 8 and Figure 9 As shown, the bottom of the dehumidification hood 14 is provided with a drainage groove 143 and a drainage outlet. The refrigeration equipment also includes a drainage pipe 145, which is connected to the drainage outlet and is used to drain the water from the dehumidification chamber 13.
[0043] In this embodiment, the combination of the drainage trough 143, the drainage outlet and the drainage pipe 145 can promptly discharge the condensate generated in the dehumidification chamber 13, preventing water accumulation from affecting the operation and dehumidification effect of the refrigeration equipment and improving the reliability of the refrigeration equipment.
[0044] Optionally, the bottom of the dehumidifier hood 14 is recessed downward to form a drainage groove 143 to increase the water storage capacity of the drainage groove 143.
[0045] Optionally, the outlet pipe of the drain pipe 145 is connected to the drip tray to drain accumulated water.
[0046] Optionally, the drip tray is located inside the compressor compartment 67 of the refrigeration equipment. This facilitates drainage of the drip tray and also makes it easy to disassemble.
[0047] Optionally, the compressor compartment 67 is located at the bottom of the refrigeration unit.
[0048] Optionally, the number of dehumidification chambers 13 may be one or more. When there are multiple dehumidification chambers 13, they are spaced apart within the inner liner 10. Optionally, the multiple dehumidification chambers 13 may be located in the same refrigeration chamber 11 or in different refrigeration chambers 11.
[0049] Optionally, the first dehumidification chamber has a first dehumidification port, a first dehumidification hood, and a first dehumidification coil, and the second dehumidification chamber has a second dehumidification port, a second dehumidification hood, and a second dehumidification coil. The evaporation coil 20 includes a first dehumidification coil and a second dehumidification coil.
[0050] Optionally, the first dehumidification chamber and the second dehumidification chamber can be located in the same refrigeration chamber 11 or in different refrigeration chambers 11.
[0051] Optionally, the inner liner 10 is provided with a partition that divides the refrigeration chamber 11 into multiple cold storage compartments, including a first cold storage compartment and a second cold storage compartment. The first cold storage compartment is connected to the dehumidification chamber 13, so that the first cold storage compartment and the second cold storage compartment can form different humidity and temperature spaces, and can be used to store items with different preservation needs, thereby improving the applicability.
[0052] In some optional embodiments, the first refrigerator compartment is connected to the first dehumidification chamber, and the second refrigerator compartment is connected to the second dehumidification chamber, so that dehumidification can be performed in both the first and second refrigerator compartments. Different dehumidification capacities can be set for the first and second dehumidification chambers according to dehumidification requirements.
[0053] Optionally, the opening areas of the first dehumidification port and the second dehumidification port may be different, and / or, the size and structure of the first dehumidification hood may be different from those of the second dehumidification hood, and / or, the total length of the first dehumidification coil may be different from that of the second dehumidification coil. It can be understood that the dehumidification capacities of the first and second dehumidification chambers are different, which can be adjusted by modifying parameters such as the capacity of the dehumidification chamber 13 and the length of the dehumidification coil, so that the first and second refrigerator compartments can achieve different dehumidification effects.
[0054] For example, the first refrigerator compartment is a high-humidity, low-temperature zone, and the second refrigerator compartment is a low-humidity, constant-temperature zone. The set humidity of the first refrigerator compartment is higher than that of the second refrigerator compartment, and the set temperature of the first refrigerator compartment is lower than that of the second refrigerator compartment. Thus, the first refrigerator compartment is used to store items requiring higher humidity to reduce moisture loss, and the low temperature slows down spoilage. The second refrigerator compartment is used to store items that are more sensitive to humidity, such as medicines and vaccines.
[0055] Optionally, the set humidity of the first refrigerator compartment is greater than that of the second refrigerator compartment. The first and second refrigerator compartments are used to store different medical supplies. For example, vaccines can be placed in the second refrigerator compartment with a lower set humidity, while medicines can be stored in the first refrigerator compartment with a higher set humidity.
[0056] It should be noted that the set humidity (such as the first set temperature) of the refrigeration room refers to the highest humidity that the refrigeration space or refrigerator room can achieve, and the set temperature refers to the highest temperature that the refrigeration space or refrigerator room can achieve.
[0057] Optionally, the set temperature of the refrigerated room is 2℃~8℃.
[0058] Optionally, such as Figure 1 and Figure 10 As shown, the refrigeration equipment also includes a fan housing 30 and a fan. The fan housing 30 covers the side of the dehumidification chamber 13 facing the refrigeration chamber 11. The fan is located inside the dehumidification chamber 13. The dehumidification chamber 13 has an air inlet and an air outlet 31. The fan can drive the airflow in the refrigeration chamber 11 to flow into the dehumidification chamber 13 from the air inlet and then flow back into the refrigeration chamber 11 from the air outlet 31.
[0059] In this embodiment, the fan housing 30 provides installation and working space for the fan. The fan can drive the airflow of the cooling chamber 11 to form a circulation between the dehumidification chamber 13 and the cooling chamber 11, so that more airflow flows through the evaporator coil 20 in the dehumidification chamber 13 for heat exchange and dehumidification, which speeds up the dehumidification speed, improves the humidity control efficiency of the cooling chamber 11, and ensures uniform humidity in the chamber.
[0060] Optionally, the refrigeration equipment also includes a door that covers the opening of the refrigeration chamber 11; wherein the air outlet 31 is directed toward the door to allow the air from the dehumidification chamber 13 to be blown back into the refrigeration chamber 11 by the obstruction of the door.
[0061] In this embodiment, the air outlet 31 faces the door, utilizing the door's obstruction effect to better diffuse and return the dehumidified airflow to various areas of the cooling chamber 11. This prevents the airflow from concentrating directly in a localized area, enhancing the uniformity of airflow circulation and further improving the overall dehumidification and temperature distribution effect of the cooling chamber 11. Furthermore, the air outlet 31 of the dehumidification chamber 13 blows towards the door, preventing the cold airflow from the dehumidification chamber 13 from directly blowing onto the items inside the cooling chamber 11, thus avoiding excessive cooling that could affect the items' activity.
[0062] Optionally, an air inlet is formed between the bottom of the fan housing 30 and the inner liner 10, and an air outlet 31 is provided on the fan housing 30.
[0063] Optionally, when there are multiple dehumidification chambers 13, each dehumidification chamber 13 is equipped with a fan, and the number of fans is the same as the number of dehumidification chambers 13 and corresponds one-to-one.
[0064] Optionally, such as Figure 11 and Figure 12 As shown, the evaporator coil 20 includes a dehumidifying evaporator section 22 and a cooling evaporator section 21. The dehumidifying evaporator section 22 is located inside the dehumidifying chamber 13, and the cooling evaporator section 21 is located on the outside of the inner liner 10. The cooling evaporator section 21 is located on the outside of the inner liner 10 and is used to cool the cooling chamber 11. The dehumidifying evaporator section 22 can be connected to the upstream of the cooling evaporator section 21.
[0065] In this embodiment, the evaporator coil 20 is divided into a dehumidifying evaporator section 22 and a refrigerating evaporator section 21, making their functions clearly defined and enabling them to work together. The refrigerating evaporator section 21 ensures the refrigeration effect of the refrigeration equipment, while the dehumidifying evaporator section 22 ensures the refrigeration temperature. The dehumidifying evaporator section 22 can be connected upstream of the refrigerating evaporator section 21, so that the low-temperature characteristics of the refrigerant can be used to efficiently dehumidify first, and then the refrigerant can enter the refrigerating evaporator section 21 to continue refrigeration, thereby improving the energy utilization rate of the refrigerant.
[0066] Optionally, the refrigeration equipment includes a refrigeration system, which includes a compressor 60, a condenser 61, a throttling device 62, and an evaporator coil 20 connected in sequence. The refrigeration equipment also includes a cold storage layer 40, which is disposed between the inner liner 10 and the evaporator coil 20, with at least a portion of the refrigeration evaporator 21 attached to the outside of the cold storage layer 40.
[0067] In this embodiment, the cold storage layer 40 is located between the evaporator coil 20 and the inner liner 10. The cold energy from the evaporator coil 20 is first transferred to the cold storage layer 40, which stores the cold energy. The cold storage layer 40 is located outside the inner liner 10 and in contact with it. Through heat exchange between the inner liner 10 and the air in the cooling chamber 11, the temperature of the cooling chamber 11 is reduced, achieving cooling and maintaining the temperature within the cooling chamber 11 at 2°C to 8°C. Furthermore, by providing the cold storage layer 40, even when the refrigeration system stops working, the cold storage layer 40 can still release cold energy to maintain the temperature of the cooling chamber 11, reducing the frequency of refrigeration system start-ups and shutdowns, saving energy, and solving the problem of damage to stored items due to temperature rise in the cooling chamber 11 in areas with unstable power supply or in the event of a sudden power outage.
[0068] The refrigeration equipment of this embodiment improves the insulation effect of the refrigeration chamber 11 by setting up a cold storage layer 40 and an evaporator coil 20, thereby improving temperature stability. It can be used to store items with high temperature stability requirements, such as vaccines. However, the cold storage layer 40, while ensuring the temperature, may prevent the temperature inside the refrigeration chamber 11 from dropping to the dew point, resulting in weak dehumidification. To address this, a dehumidification chamber 13 is provided in the inner liner 10, allowing air from the refrigeration chamber 11 to flow into the dehumidification chamber 13 and directly contact the evaporator coil 20 to lower the temperature and dehumidify. Thus, the refrigeration equipment of this embodiment can balance temperature and humidity stability, further improving the reliability of the refrigeration equipment and enhancing the user experience.
[0069] Optionally, the cold storage layer 40 is disposed between the refrigeration evaporation section 21 and the inner liner 10. Since the dehumidification chamber 13 is connected to the inner liner 10 through the dehumidification port 12, and the dehumidification port 12 is an opening opened in the inner liner 10, the dehumidification evaporation section 22 is directly connected to the dehumidification port 12, and there is no need to provide the cold storage layer 40.
[0070] Optionally, the cold storage layer 40 can be a cold storage ice pack or other phase change heat storage material. All materials that can achieve cold storage and transfer cold energy to the inner liner 10 are optional embodiments of this application and will not be described in detail here.
[0071] Optionally, the refrigeration equipment also includes a shell 50 and an insulation layer 51. The shell 50 is located on the outside of the inner liner 10, and the insulation layer 51 is located between the evaporator coil 20 and the shell 50. The insulation layer 51 is used to reduce heat exchange between the evaporator coil 20 and the shell 50.
[0072] Optionally, the insulation layer 51 is located on the outside of the evaporator coil 20.
[0073] Optionally, when the multiple dehumidification chambers 13 include a first dehumidification chamber and a second dehumidification chamber, the dehumidification evaporation section 22 includes a first dehumidification coil and a second dehumidification coil, wherein the first dehumidification coil and the second dehumidification coil are connected in series or in parallel.
[0074] Optionally, the first dehumidification chamber is connected to the first refrigerator compartment, and the second dehumidification chamber is connected to the second refrigerator compartment. If the set humidity of the first refrigerator compartment is lower than the set humidity of the second refrigerator compartment, the first dehumidification coil is connected in series upstream of the second dehumidification coil. In this way, the refrigerant with a lower temperature first undergoes heat exchange and dehumidification in the first dehumidification chamber. After the temperature rises slightly, it flows into the second dehumidification chamber to dehumidify the second refrigerator compartment. This eliminates the need to adjust the refrigerant temperature of the second dehumidification coil and can effectively achieve different humidity regulation effects.
[0075] Optionally, when the first dehumidifying coil and the second dehumidifying coil are connected in parallel, the first dehumidifying coil and the second dehumidifying coil are respectively equipped with connecting valves, which can independently adjust the refrigerant flow of the first dehumidifying coil and the second dehumidifying coil, so as to independently adjust the humidity of the first refrigerator compartment and the second refrigerator compartment.
[0076] In some alternative embodiments, such as Figure 11 As shown, the dehumidifying evaporator 22 is connected in series with the refrigerating evaporator 21, and the dehumidifying evaporator 22 is located upstream of the refrigerating evaporator 21. In this way, the refrigerant in the dehumidifying evaporator 22 can flow into the refrigerating evaporator 21 for refrigeration after dehumidification and heat exchange in the dehumidifying chamber 13, thereby improving the utilization rate of the refrigerant's cooling capacity.
[0077] Optionally, an electronic expansion valve is provided between the dehumidifying evaporator 22 and the refrigerating evaporator 21. This electronic expansion valve can throttle the refrigerant flowing out of the dehumidifying evaporator 22 to further regulate the temperature of the refrigerant flowing into the refrigerating evaporator 21.
[0078] Optionally, if the temperature of the refrigerant flowing out of the dehumidifying evaporator 22 is less than or equal to the first preset temperature, the electronic expansion valve is configured to be fully open. This indicates that the temperature of the refrigerant flowing out of the dehumidifying evaporator 22 meets the temperature requirement of the refrigeration evaporator 21, and there is no need to throttle the refrigerant flowing into the refrigeration evaporator 21. If the temperature of the refrigerant flowing out of the dehumidifying evaporator 22 is greater than the first preset temperature, the electronic expansion valve is controlled to reduce its opening to throttle the refrigerant flowing out of the dehumidifying evaporator 22 and lower its temperature to meet the temperature requirement of the refrigerant in the refrigeration evaporator 21.
[0079] Optionally, a capillary tube and a connecting pipe are provided in parallel between the dehumidifying evaporator 22 and the refrigerating evaporator 21. The connecting pipe is equipped with a valve. When the temperature of the refrigerant flowing out of the dehumidifying evaporator 22 is less than or equal to a first preset temperature, the valve opens, allowing the refrigerant from the dehumidifying evaporator 22 to flow into the refrigerating evaporator 21 through the connecting pipe. When the temperature of the refrigerant flowing out of the dehumidifying evaporator 22 is greater than the first preset temperature, the control valve 63 closes, allowing the refrigerant from the dehumidifying evaporator 22 to flow into the refrigerating evaporator 21 after being throttled through the capillary tube, thereby further reducing the temperature of the refrigerant.
[0080] Alternatively, the dehumidifying evaporator 22 may also be connected downstream of the refrigerating evaporator 21.
[0081] Optionally, when the dehumidifying evaporator 22 is connected downstream of the refrigeration evaporator 21, an electronic expansion valve, capillary tube, valve, and connecting pipe may also be provided between the dehumidifying evaporator 22 and the refrigeration evaporator 21. Their functions are the same as those described above and will not be repeated here.
[0082] In other alternative embodiments, such as Figure 12 As shown, the refrigeration equipment also includes a bypass pipe 64 and a control valve 63. The bypass pipe 64 is connected between the outlet of the dehumidification evaporation section 22 and the outlet of the refrigeration evaporation section 21. The control valve 63 is located at the inlet end of the bypass pipe 64 and is used to control the refrigerant flowing out of the dehumidification evaporation section 22 to flow to the refrigeration evaporation section 21 or to flow back to the compressor 60 through the bypass pipe 64.
[0083] In this embodiment, the bypass pipe 64 and control valve 63 allow the refrigerant flowing from the dehumidification evaporator 22 to flexibly choose its flow direction. The refrigerant from the dehumidification evaporator 22 can flow back to the compressor 60 independently without passing through the refrigeration evaporator 21, reducing the refrigerant resistance flowing through the refrigeration evaporator 21 and optimizing the refrigeration system circulation. When dehumidification is required, the refrigerant flows normally to the refrigeration evaporator 21, ensuring the synergy of dehumidification and refrigeration functions and enhancing the flexibility and adaptability of the refrigeration equipment.
[0084] Optionally, control valve 63 is a three-way valve.
[0085] Optionally, the refrigeration equipment also includes a controller electrically connected to the refrigeration system and the fan, the controller being configured to control the operation of the refrigeration system and the fan.
[0086] In this embodiment, the controller provides intelligent control of the refrigeration system and the fan, thereby automating and intelligentizing the operation of the refrigeration equipment. It can adjust the working status according to the actual working conditions, improving the operating efficiency and stability of the refrigeration equipment.
[0087] Optionally, the refrigeration equipment also includes a first detection device and a second detection device, the first detection device being used to detect the temperature of the refrigeration chamber 11 and the second detection device being used to detect the temperature of the cold storage layer 40.
[0088] Optionally, when the dehumidification evaporation unit 22 is connected upstream of the refrigeration evaporation unit 21, if the temperature of the refrigeration chamber 11 is greater than or equal to the first set temperature and the temperature of the cold storage layer 40 is greater than or equal to the second set temperature, the controller is configured to control the refrigeration system to start and control the fan to start after a first delay.
[0089] In this embodiment, when the temperature of the cooling chamber 11 is greater than or equal to a first set temperature, and the temperature of the cold storage layer 40 is greater than or equal to a second set temperature, it indicates that the temperature inside the cooling chamber 11 is high, and the temperature of the cold storage layer 40 is also high. At this time, the refrigeration system is controlled to operate. The refrigerant is discharged from the compressor 60, passes through the condenser 61 and the throttling device 62, and first enters the dehumidification evaporation section 22, then enters the refrigeration evaporation section 21, and then returns to the compressor 60, continuously circulating to ensure that the refrigeration evaporation section 21 cools the cooling chamber 11, thereby reducing the temperature of the cooling chamber 11. After the refrigeration system operates, the controller controls the fan to start after a first delay. This allows the evaporation coil 20 to cool down before dehumidifying the cooling chamber 11, preventing the high-temperature gas in the dehumidification chamber 13 from flowing into the cooling chamber 11 after the fan starts due to the excessively high temperature of the evaporation coil 20, which would cause an increase in humidity inside the cooling chamber 11.
[0090] In addition, the refrigerant first enters the dehumidification evaporation section 22 and then the refrigeration evaporation section 21. When the refrigerant first enters the dehumidification evaporation section 22, the fan directly exchanges heat between the cooling capacity of the dehumidification evaporation section 22 and the refrigeration chamber 11, which can quickly reduce the temperature and humidity of the refrigeration chamber 11. When the refrigerant after dehumidification and heat exchange enters the refrigeration evaporation section 21, the refrigeration evaporation section 21 exchanges heat with the cold storage layer 40, storing its cooling capacity in the cold storage layer 40. The cold storage layer 40 then exchanges heat with the air in the refrigeration chamber 11, thereby achieving rapid cooling, dehumidification, and cold storage simultaneously.
[0091] Optionally, when the dehumidification evaporation unit 22 is connected upstream of the refrigeration evaporation unit 21, if the temperature of the refrigeration chamber 11 is lower than the first set temperature and the temperature of the cold storage layer 40 is greater than or equal to the second set temperature, the controller is configured to control the refrigeration system to turn on and control the fan to turn off.
[0092] In this embodiment, when the temperature of the cooling chamber 11 is lower than the first set temperature and the temperature of the cold storage layer 40 is greater than or equal to the second set temperature, it indicates that the temperature inside the cooling chamber 11 meets the cooling requirements, and the temperature of the cold storage layer 40 is relatively high. At this time, the refrigeration system is activated, and refrigerant is discharged from the compressor 60. After passing through the condenser 61 and the throttling device 62, it first enters the dehumidifying evaporator 22, then the refrigerating evaporator 21, and finally returns to the compressor 60, continuously circulating to ensure continuous cooling and maintain the temperature stability of the cooling chamber 11. Simultaneously, the controller prevents the fan from operating, so that the refrigerant in the evaporator coil 20 is entirely used for cold storage in the cold storage layer 40, without direct heat exchange with the air, allowing the temperature of the cold storage layer 40 to decrease to the second set temperature.
[0093] Optionally, when the dehumidifying evaporator 22 is connected upstream of the refrigeration evaporator 21, the controller is configured to stop the refrigeration system from operating when the temperature of the refrigeration chamber 11 is lower than the first set temperature and the temperature of the cold storage layer 40 is lower than the second set temperature.
[0094] In this embodiment of the present disclosure, when the temperature inside the cooling chamber 11 and the temperature of the cold storage layer 40 are both lower than their corresponding set temperatures, the cooling system can be controlled to stop working in order to reduce energy consumption and at the same time avoid the temperature inside the cooling chamber 11 from becoming too cold.
[0095] Optionally, the refrigeration equipment also includes a third detection device and a fourth detection device, the third detection device being used to detect the humidity of the refrigeration compartment 11.
[0096] Optionally, when the refrigeration equipment includes a bypass pipe 64 and a control valve 63, if the humidity of the refrigeration chamber 11 is greater than or equal to the set humidity, the controller is configured to control the control valve 63 to connect the outlet of the dehumidification evaporation section 22 to the bypass pipe 64, control the operation of the refrigeration system, and control the fan to start after a second delay.
[0097] In this embodiment, when the humidity inside the cooling chamber 11 is high, the refrigeration system is controlled to operate, ensuring that low-temperature refrigerant flows through the dehumidifying evaporator 22. The control valve 63 connects the outlet of the dehumidifying evaporator 22 to the bypass pipe 64, allowing the refrigerant in the dehumidifying evaporator 22 to quickly flow back to the compressor 60, increasing the flow rate and rapidly cooling the chamber to improve dehumidification. Simultaneously, the fan is delayed in starting, ensuring that the temperature of the dehumidifying evaporator 22 has decreased before starting the fan to dehumidify the cooling chamber 11. This prevents high-temperature air from flowing into the cooling chamber 11 and affecting its temperature.
[0098] Optionally, the refrigeration system also includes a dryer filter 65 located between the condenser 61 and the throttling device 62.
[0099] Optionally, the refrigeration system also includes a liquid receiver 66 located between the compressor 60 and the evaporator coil 20.
[0100] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A cold appliance, characterized in The application relates to a refrigeration equipment. The inner container is internally provided with a refrigeration compartment, and a dehumidification cavity is arranged on the side wall of the inner container. An evaporation coil is arranged on the outer side of the inner container, and part of the evaporation coil is arranged in the dehumidification cavity. The dehumidification cavity is communicated with the refrigeration compartment, and air in the refrigeration compartment can flow into the dehumidification cavity to exchange heat with the evaporation coil for dehumidification.
2. The refrigeration appliance of claim 1, wherein, The side wall of the inner container is provided with a dehumidification opening, and the refrigeration equipment further comprises: A dehumidification cover is arranged on the side of the dehumidification opening away from the refrigeration compartment, and the dehumidification cover and the inner container surround the dehumidification cavity. The dehumidification cover is provided with a perforation, and the evaporation coil is inserted into the dehumidification cavity through the perforation.
3. The cold appliance of claim 2, characterized in that Further comprising: A sealing plate is arranged between the evaporation coil and the perforation, and is used for sealing the perforation and the connection between the perforation and the evaporation coil. And / or, The bottom of the dehumidification cover is provided with a drainage groove and a drainage opening, and the refrigeration equipment further comprises: A drainage pipe is communicated with the drainage opening and is used for draining water in the dehumidification cavity.
4. The refrigeration appliance of claim 1, wherein, Further comprising: A fan cover is arranged on the side of the dehumidification cavity facing the refrigeration compartment; A fan is arranged in the dehumidification cavity; The dehumidification cavity is provided with an air inlet and an air outlet, and the fan can drive the air in the refrigeration compartment to flow into the dehumidification cavity from the air inlet and then flow back into the refrigeration compartment from the air outlet.
5. The refrigeration appliance of claim 4, wherein, Further comprising: A door body is arranged on the opening of the refrigeration compartment; The air outlet is directed towards the door body, so that the air outlet of the dehumidification cavity can be blown back into the refrigeration compartment under the blockage of the door body.
6. The refrigeration equipment according to claim 4, wherein The evaporation coil comprises a dehumidification evaporation part and a refrigeration evaporation part, the dehumidification evaporation part is arranged in the dehumidification cavity, and the refrigeration evaporation part is arranged on the outer side of the inner container and is used for refrigerating the refrigeration compartment; The dehumidification evaporation part is communicated upstream of the refrigeration evaporation part.
7. The cold appliance of claim 6, characterized in that Further comprising: A refrigeration system comprising a compressor, a condenser, a throttling device and the evaporation coil which are sequentially communicated; A cold storage layer is arranged between the inner container and the evaporation coil, and at least part of the refrigeration evaporation part is attached to the outside of the cold storage layer; A controller is electrically connected with the refrigeration system and the fan, and the controller is configured to control the operation of the refrigeration system and the fan.
8. The refrigeration equipment according to claim 7, wherein When the temperature of the refrigeration compartment is greater than or equal to a first set temperature, and the temperature of the cold storage layer is greater than or equal to a second set temperature, the controller is configured to control the refrigeration system to be turned on, and control the fan to be turned on after a delay of a first time length; and / or When the temperature of the refrigeration compartment is less than the first set temperature, and the temperature of the cold storage layer is greater than or equal to the second set temperature, the controller is configured to control the refrigeration system to be turned on, and control the fan to be turned off; and / or When the temperature of the refrigeration compartment is less than the first set temperature, and the temperature of the cold storage layer is less than the second set temperature, the controller is configured to control the refrigeration system to stop working.
9. The refrigeration appliance of claim 7, wherein, Further comprising: A bypass pipeline is communicated between the outlet of the dehumidification evaporation part and the outlet of the refrigeration evaporation part; A control valve is arranged at the inlet end of the bypass pipeline and is used for controlling the refrigerant flowing out of the dehumidification evaporation part to flow to the refrigeration evaporation part or to flow back to the compressor through the bypass pipeline.
10. The refrigeration equipment according to claim 7, wherein In a case where the humidity in the refrigeration compartment is greater than or equal to the set humidity, the controller is configured to control the control valve to communicate the outlet of the dehumidification evaporating portion with the bypass pipeline, control the refrigeration system to operate, and control the fan to start after a second time length is delayed.