Refrigerator compartment air duct and refrigerator

Abstract

The utility model discloses a refrigerator chamber air duct and a refrigerator wherein the refrigerator chamber air duct comprises: an air outlet duct arranged in a chamber, the air outlet duct comprising a plurality of air outlets, located in different areas of the chamber and used for uniformly discharging air to the chamber; the air return duct is arranged in the compartment, the first end of the air return duct is connected with the air inlet of the air outlet duct, the second end of the air return duct communicates with the internal environment of the compartment, the first end of the air return duct is provided with a first air door and a second air door, when the first air door is opened, the air return duct is used for directly introducing return air of the compartment into the air outlet duct, and when the second air door is opened, the second air door is used for directly introducing return air of the compartment into the air outlet duct. And return air of the chamber is cooled and then introduced into the air outlet duct. The refrigerator solves the problem that in the prior art, the deviation of the upper temperature and the lower temperature inside the refrigerating chamber is large, the effect that the upper temperature and the lower temperature of the refrigerating chamber of the refrigerator are uniform is achieved, the refrigerating effect of the refrigerating chamber is improved, and the storage quality of refrigerated articles is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, and in particular to a refrigerator compartment air duct and a refrigerator. Background Art

[0002] As living standards continue to improve, consumers are increasingly choosing energy-efficient, air-cooled refrigerators with larger refrigerator compartments. With the increasing volume of food requiring refrigeration, demand for superior refrigeration performance is also increasing. However, the larger refrigerator compartments in current refrigerators also lead to significant temperature variations within the compartment, impacting overall storage efficiency and causing areas of the compartment to become overheated or overcooled, making it difficult to meet consumer demand. Both overheated and undercooled storage temperatures can easily degrade food quality or cause it to spoil. Therefore, maintaining a uniform and consistent refrigerator temperature has become a pressing issue.

[0003] With regard to the problem of large temperature deviation between the upper and lower parts of the cold storage compartment in the related art, no effective solution has been proposed so far. Utility Model Content

[0004] The utility model provides a refrigerator compartment air duct and a refrigerator, which at least solves the problem of large temperature deviation between the upper and lower parts of the refrigeration compartment in the prior art.

[0005] To solve the above technical problems, according to one aspect of an embodiment of the present utility model, a refrigerator compartment air duct is provided, comprising: an outlet air duct, arranged in the compartment, the outlet air duct comprising multiple air outlets, located in different areas of the compartment, for uniformly discharging air to the compartment; a return air duct, arranged in the compartment, the first end of the return air duct being connected to the air inlet of the outlet air duct, and the second end of the return air duct being connected to the internal environment of the compartment, wherein the first end of the return air duct is provided with a first damper and a second damper, and when the first damper is opened, it is used to directly pass the return air from the compartment into the outlet air duct, and when the second damper is opened, it is used to cool the return air from the compartment and then pass it into the outlet air duct.

[0006] Furthermore, the return air duct includes a first return air duct and a second return air duct, the first air door is arranged at the first end of the first return air duct, and the second air door is arranged at the first end of the second return air duct; the refrigerator compartment air duct also includes: a cold storage component, arranged in the second return air duct, for cooling the return air entering the second return air duct.

[0007] Furthermore, the cold storage component includes: a cold storage device for providing cold energy; a thermal insulation component for reducing the cold energy loss of the cold storage device; wherein the thermal insulation component includes at least: an upper thermal insulation plate located above the cold storage device, a lower thermal insulation plate located below the cold storage device, a partition box located outside the cold storage device, the upper thermal insulation plate and the lower thermal insulation plate, and a partition cover located below the partition box.

[0008] Furthermore, the compartment is a refrigeration compartment, and the refrigerator also includes a temperature-variable compartment, and the cold storage component is arranged in a partition between the cold compartment and the temperature-variable compartment.

[0009] Furthermore, it also includes: a circulation fan, which is arranged in the air outlet duct and is used to accelerate the air circulation in the compartment.

[0010] According to another aspect of an embodiment of the present invention, a refrigerator is provided, which adopts the refrigerator compartment air duct as described above.

[0011] In the present invention, in order to improve the uniformity of the temperature within the compartment, an air duct system with an adjustable temperature difference is provided. The air outlet duct of the air duct system includes multiple air outlets located in different areas of the compartment for uniformly discharging air into the compartment. A first damper and a second damper are provided at one end of the return air duct of the air duct system connected to the air inlet of the outlet duct for directly passing the return air from the compartment into the outlet duct or passing the return air into the outlet duct after cooling. The first damper and the second damper can be opened as needed to reduce the temperature difference between the upper and lower compartments while adjusting the compartment temperature. This effectively solves the problem of large temperature deviation between the upper and lower compartments of the refrigerator compartment in the prior art, makes the temperature difference between the upper and lower compartments adjustable, and achieves the effect of uniform temperature between the upper and lower compartments of the refrigerator compartment. This avoids the problem of overheating in the upper part of the refrigerator compartment and excessively low temperature in the lower part of the refrigerator compartment, which affects the storage of fruits and vegetables. This improves the refrigeration effect of the refrigerator compartment and the preservation quality of refrigerated items. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of an optional structure of a refrigerator according to an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of an optional structure of the refrigerator compartment air duct according to an embodiment of the present utility model;

[0014] Figure 3 This is a schematic diagram of an optional structure of the first damper and the second damper according to an embodiment of the present utility model;

[0015] Figure 4 This is a schematic diagram of an optional structure of a cold storage assembly according to an embodiment of the present utility model.

[0016] Description of reference numerals:

[0017] 1. Refrigerator body; 2. Refrigerator compartment; 3. Variable temperature chamber; 4. Freezer compartment; 5. Refrigeration regulating air duct; 6. Variable temperature chamber air inlet duct; 7. Variable temperature chamber air return duct; 8. Refrigeration upper thermostat; 9. Refrigeration lower thermostat; 10. Air outlet duct; 11. Return air duct; 12. First air door; 13. Second air door; 14. Cold storage assembly; 15. Partition box; 16. Upper insulation board; 17. Cold storage; 18. Insulation board; 19. Partition cover. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0019] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise, and "a plurality" generally includes at least two.

[0020] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0021] It should be understood that although the terms "first," "second," "third," etc. may be used to describe controllers in embodiments of the present invention, these controllers should not be limited to these terms. These terms are merely used to distinguish controllers connected to different devices. For example, a first controller may also be referred to as a second controller, and similarly, a second controller may also be referred to as a first controller without departing from the scope of the present invention.

[0022] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0023] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0024] Optional embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] In a preferred embodiment 1 of the present invention, a refrigerator compartment air duct is provided. The refrigerator compartment air duct can be directly applied to a refrigerator, such as an air-cooled refrigerator, and is particularly used as a compartment air duct of a cold storage compartment.

[0027] Specifically, Figure 1 An optional structural diagram of the refrigerator is shown in FIG. Figure 1 As shown, the refrigerator includes:

[0028] Refrigerator body 1, refrigerating compartment 2, variable temperature compartment 3, freezing compartment 4, refrigerator compartment air duct 5, variable temperature compartment air inlet duct 6, variable temperature compartment air return duct 7, refrigerating upper thermostat 8, refrigerating lower thermostat 9.

[0029] Figure 2 Shows an optional structural diagram of the refrigerator compartment air duct in the refrigerator, the refrigerator compartment air duct is the refrigeration compartment air duct, such as Figure 2 As shown, the refrigerator compartment air duct includes:

[0030] The air outlet duct 10 is provided in the compartment (ie the above-mentioned refrigeration compartment 2), and the air outlet duct 10 includes a plurality of air outlets located in different areas of the compartment for uniformly discharging air to the compartment; Figure 2 As shown in the middle BB, the air outlet duct 10 includes multiple air outlets. For a compartment with a partition, each area separated by the partition has air outlet, ensuring uniform wind fields at the top and bottom, and improving the consistency of the temperature difference between the top and bottom.

[0031] The return air duct 11 is arranged in the compartment, the first end of the return air duct 11 is connected to the air inlet of the outlet air duct 10, and the second end of the return air duct 11 is connected to the internal environment of the compartment, wherein the first end of the return air duct 11 is provided with a first damper 12 and a second damper 13. When the first damper 12 is opened, it is used to directly pass the return air of the compartment into the outlet air duct 10. When the second damper 13 is opened, it is used to cool the return air of the compartment and then pass it into the outlet air duct 10.

[0032] In the above embodiment, to improve the uniformity of temperature within the compartment, an air duct system with an adjustable temperature difference is provided. The air outlet duct of the air duct system includes multiple air outlets located in different areas of the compartment for uniformly discharging air into the compartment. A first damper and a second damper are provided at one end of the return air duct of the air duct system, connected to the air inlet of the outlet duct, for directing return air from the compartment directly into the outlet duct or into the outlet duct after cooling. The first damper and the second damper can be opened as needed to reduce the temperature difference between the upper and lower compartments while regulating the compartment temperature. This effectively solves the problem of large temperature deviations between the upper and lower compartments of the refrigerator compartment in the prior art. The temperature difference between the upper and lower compartments is adjustable, achieving uniform temperature between the upper and lower compartments of the refrigerator compartment, avoiding the problem of overheating in the upper part of the refrigerator compartment and excessively low temperatures in the lower part, which affects the storage of fruits and vegetables. This improves the refrigeration efficiency of the refrigerator compartment and the preservation quality of refrigerated items.

[0033] Corresponding to the return air outlet, the return air duct 11 includes a first return air duct and a second return air duct, the first damper 12 is arranged at the first end of the first return air duct, and the second damper 13 is arranged at the first end of the second return air duct; Figure 2 As shown, the refrigerator compartment air duct also includes a cold storage assembly 14, located within the second return air duct, for cooling the return air entering the second return air duct. Furthermore, placing cold storage assembly 14 within the partition between the refrigeration compartment and the variable temperature chamber fully utilizes the space within the refrigerator's foam layer and facilitates the layout of the refrigerator's refrigeration duct. The cold storage process occurs when the compressor is activated and the variable temperature chamber is cooled. Cold storage in the cold storage assembly is achieved by setting the temperature of the variable temperature chamber and program control.

[0034] The above-mentioned cold storage component 14 can also provide cold air for a refrigerator compartment such as a cold storage compartment separately. When necessary, for example, when the average temperature of the cold storage compartment is higher than the set temperature, cold air is provided to the cold storage compartment for cooling, so that the cold storage compartment is separated from other compartments and becomes an independent compartment, ensuring that the cold storage compartment and other compartments do not cross-flavor each other.

[0035] Optionally, Figure 3 A schematic diagram showing an optional structure of the first air door 12 and the second air door 13 of the refrigerator compartment air duct in the refrigerator is shown. Figure 3 As shown, the return air directly passes through the first return air channel to the first air door 12, and then enters the air inlet duct 10, as shown in FIG. Figure 3 As shown, the cold storage component 14 is arranged in the second return air duct. After the return air enters the second return air duct, it exchanges heat with the cold storage component 14. The cooled return air enters the air inlet duct through the second air door 13.

[0036] Figure 4 An optional structural diagram of the cold storage component is shown in FIG. Figure 4As shown, the cold storage assembly 14 includes a cold storage tank 17 for providing cold energy, and a heat preservation assembly for reducing cold energy loss from the cold storage tank. The heat preservation assembly includes at least an upper heat insulation plate 16 located above the cold storage tank, a lower heat insulation plate 18 located below the cold storage tank, a baffle box 15 located outside the cold storage tank 17, the upper heat insulation plate 16, and the lower heat insulation plate 18, and a baffle cover 19 located below the baffle box. The upper heat insulation plate 16 and the lower heat insulation plate 18 are respectively installed above and below the cold storage tank 17 to reduce cold energy loss from the cold storage tank 17 and improve cold energy utilization.

[0037] like Figure 1 As shown, the refrigerator further includes a circulation fan disposed in the air outlet duct 10 for accelerating air circulation within the compartment. The circulation fan forces the cold air within the compartment to circulate, further improving air mobility and circulating air up and down the refrigerator compartment, thereby preventing high temperatures at the top and low temperatures at the bottom, or localized overly high or low temperatures within the compartment, and improving temperature uniformity within the compartment.

[0038] The aforementioned temperature-adjusting air duct system and refrigerator achieve the purpose of regulating the temperature difference between the upper and lower parts of the refrigerator compartment by providing a temperature-regulating air duct system, namely, the aforementioned refrigerator compartment air duct, within the refrigerator compartment. This system circulates high and low temperatures within the refrigerator compartment, thereby achieving the purpose of regulating the temperature difference between the upper and lower parts of the refrigerator compartment and meeting the requirement for uniform temperature within the refrigerator compartment. Furthermore, a damper is provided within the air duct system, and a cold storage device assembly is provided between the refrigerator compartment and the variable temperature chamber, integrating the compartment air duct with the cold storage device. When the temperature of the refrigerator compartment reaches the set temperature, the cold air circulates through the air duct through the damper, thereby regulating the temperature difference between the upper and lower parts of the refrigerator compartment without passing through the cold storage device. When the temperature within the refrigerator compartment is higher than the set temperature, the air duct circulates the cold air, i.e., through the damper switching, the return air passes through the cold storage device and draws cold energy from the cold storage device to cool the refrigerator compartment. This not only cools the refrigerator compartment but also regulates the temperature difference between the upper and lower parts of the refrigerator compartment.

[0039] Example 2

[0040] In a preferred embodiment 2 of the present invention, a refrigerator is provided, which adopts the refrigerator compartment air duct in the above-mentioned embodiment 1.

[0041] The structure of the refrigerator is as follows Figure 1 As shown, it includes: a refrigerator body 1, a refrigerating chamber 2, a variable temperature chamber 3, a freezing chamber 4, a refrigerator compartment air duct 5, a variable temperature chamber air inlet duct 6, a variable temperature chamber air return duct 7, a refrigerating upper thermostat 8, and a refrigerating lower thermostat 9.

[0042] In the above embodiment, to improve the uniformity of temperature within the compartment, an air duct system with an adjustable temperature difference is provided. The air outlet duct of the air duct system includes multiple air outlets located in different areas of the compartment for uniformly discharging air into the compartment. A first damper and a second damper are provided at one end of the return air duct of the air duct system, connected to the air inlet of the outlet duct, for directing return air from the compartment directly into the outlet duct or into the outlet duct after cooling. The first damper and the second damper can be opened as needed to reduce the temperature difference between the upper and lower compartments while regulating the compartment temperature. This effectively solves the problem of large temperature deviations between the upper and lower compartments of the refrigerator compartment in the prior art. The temperature difference between the upper and lower compartments is adjustable, achieving uniform temperature between the upper and lower compartments of the refrigerator compartment, avoiding the problem of overheating in the upper part of the refrigerator compartment and excessively low temperatures in the lower part, which affects the storage of fruits and vegetables. This improves the refrigeration efficiency of the refrigerator compartment and the preservation quality of refrigerated items.

[0043] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0044] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0045] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0046] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A refrigerator compartment air duct, characterized in that: include: An air outlet duct is provided in the compartment, and the air outlet duct includes a plurality of air outlets located in different areas of the compartment, and is used to uniformly discharge air into the compartment; A return air duct is provided in the compartment, a first end of the return air duct is connected to the air inlet of the outlet air duct, and a second end of the return air duct is communicated with the internal environment of the compartment, wherein the first end of the return air duct is provided with a first damper and a second damper, and when the first damper is opened, it is used to directly pass the return air from the compartment into the outlet air duct, and when the second damper is opened, it is used to cool the return air from the compartment and then pass it into the outlet air duct.

2. The refrigerator compartment air duct according to claim 1, characterized in that: The return air duct includes a first return air duct and a second return air duct, the first air door is arranged at a first end of the first return air duct, and the second air door is arranged at a first end of the second return air duct; the refrigerator compartment air duct also includes: a cold storage component, arranged in the second return air duct, for cooling the return air entering the second return air duct.

3. The refrigerator compartment air duct according to claim 2, characterized in that: The cold storage component comprises: Cold storage device, used to provide cooling capacity; An insulation component for reducing the cold loss of the cold accumulator; wherein the insulation component comprises at least: an upper insulation plate located above the cold accumulator, a lower insulation plate located below the cold accumulator, a partition box located outside the cold accumulator, the upper insulation plate and the lower insulation plate, and a partition cover located below the partition box.

4. The refrigerator compartment air duct according to claim 2, characterized in that: The compartment is a refrigeration compartment, and the refrigerator further comprises a temperature-variable compartment. The cold storage component is arranged in a partition between the refrigeration compartment and the temperature-variable compartment.

5. The refrigerator compartment air duct according to claim 1, characterized in that: Also includes: A circulation fan is arranged in the air outlet duct and is used to accelerate the air circulation in the compartment.

6. A refrigerator, characterized in that: The refrigerator compartment air duct according to any one of claims 1 to 5 is adopted.

Images