Single-system double-door refrigerator
By setting the refrigerated air outlet of the refrigerated return air duct on the back of the refrigerated evaporator in a single-system double-door refrigerator, the problems of increased circulation resistance of the refrigerated return air duct and uneven defrost are solved, and more efficient air circulation and lower power consumption are achieved.
Patent Information
- Application Number
- CN202422004447.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The circulation resistance of the refrigerated return air duct of the existing single-system paired door refrigerator increases, resulting in a decrease in the air circulation efficiency, uneven defrost, and increasing power consumption and thermal load.
A single-system double-door refrigerator is designed, and the refrigeration air outlet of the refrigeration return duct is set on the back of the refrigeration evaporator, so that the refrigeration return air can be blown evenly towards the refrigeration evaporator, reducing resistance and shortening the defrost time.
By even frosting, the refrigeration return air resistance is reduced, the air circulation efficiency is improved, the defrost time is shortened, the heat load is reduced, and the power consumption of the refrigerator is reduced.
Smart Images
Figure CN222938096U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to refrigerators, and particularly relates to a single-system double-door refrigerator. Background Art
[0002] At present, in traditional single-system side-by-side refrigerators, the refrigerating compartment is usually arranged on the right side of the freezer compartment. Such refrigerators all adopt an air duct circulation structure with air supply from the upper part and air return from the lower part. Specifically, the cold quantity of the evaporator is transmitted to the freezer compartment through a damper arranged at the upper part of the freezer compartment, and then returns to the freezer evaporator for cooling through an air return port arranged on the side of the freezer evaporator, forming a complete refrigerating and cooling air duct circulation.
[0003] Firstly, since the air supply duct of the existing single-system side-by-side refrigerator is arranged in the upper middle part of the freezer compartment, and the air return is arranged at the bottom of the refrigerating compartment and on the side of the freezer compartment, the refrigerating air return port can only enter the surface of the freezer evaporator through the side of the freezer evaporator, which will cause more frosting on the side of the freezer evaporator close to the refrigerating air return port, resulting in an increase in the circulation resistance of the refrigerating air return duct and a decrease in the air circulation efficiency of the refrigerating air return duct. Secondly, since the temperature of the refrigerating air return is relatively high and the temperature of the freezer air return is relatively low, the refrigeration pipeline and fins of the evaporator on the side close to the refrigerating air return port are frosted more than the other side, resulting in uneven defrosting during defrosting. The frost layers on both sides of the evaporator cannot be melted simultaneously, resulting in an extension of the defrosting heating time of the defrosting heater. The heat on the left side of the defrosting heater will not be absorbed by the frost layer and thus enter the freezer compartment, resulting in a greater increase in the temperature of the freezer compartment and affecting the fresh-keeping effect of video freezing. Finally, since the defrosting time is extended, the power consumption is increased. At the same time, the excess heat of the defrosting heater enters the freezer compartment, which also increases the heat load of the freezer compartment and the power consumption of the refrigerator. Content of the Utility Model
[0004] In view of this, it is necessary to provide a single-system double-door refrigerator for solving the above technical problems.
[0005] A single-system double-door refrigerator, which includes:
[0006] A freezer compartment, which is equipped with a freezer evaporator and a freezer air duct, and the freezer evaporator is arranged in the freezer air duct;
[0007] A refrigerating compartment, which is arranged on one side of the freezer compartment in the width direction of the single-system double-door refrigerator and is independently arranged relative to the freezer compartment, and the refrigerating compartment is communicated with the freezer air duct;
[0008] A refrigerating damper, which is arranged between the refrigerating compartment and the freezer compartment and is used for controlling the on / off between the refrigerating compartment and the freezer air duct;
[0009] The refrigerated return air duct has a refrigerated air inlet and a refrigerated air outlet. The refrigerated air inlet communicates with the refrigerating chamber, and the refrigerated air outlet is arranged on the back of the refrigerating evaporator.
[0010] It can be understood that setting the refrigerated air outlet on the refrigerated return air duct on the back of the refrigerating evaporator enables the refrigerated return air during the return air of the refrigerating chamber to evenly blow towards the refrigerating evaporator, preventing the refrigerated return air from blowing towards the refrigerating evaporator from the side close to the refrigerating chamber. In this way, the refrigerated return air can evenly frost on the refrigerating evaporator when passing through it. Thus, not only can the resistance during the return air of the refrigerated return air be reduced to ensure the air circulation efficiency of the refrigerating chamber, but also the defrosting time of the refrigerating evaporator can be shortened, reducing the heat load of the freezing chamber, and thereby reducing the power consumption when the single-system double-door refrigerator operates.
[0011] In one embodiment, in the height direction of the single-system double-door refrigerator, the refrigerated air outlet is arranged below the fins of the refrigerating evaporator.
[0012] It can be understood that through the above structural setting, it can promote the refrigerated return air blown out by the refrigerated air outlet to evenly pass through the refrigerating evaporator and ensure that the refrigerated return air evenly frosts on the refrigerating evaporator.
[0013] In one embodiment, along the flowing direction of the refrigerated return air in the refrigerated return air duct, the air outlet area of the refrigerated air outlet increases.
[0014] It can be understood that through the above structural setting, combined with the flowing speed of the refrigerated return air when flowing in the refrigerated return air duct, it can promote the air volume of the refrigerated return air blown out by the refrigerated air outlet to be consistent, further ensuring that the refrigerated return air evenly frosts on the refrigerating evaporator.
[0015] In one embodiment, the number of the refrigerated air outlets is configured to be at least two, and at least two of the refrigerated air outlets are arranged in sequence along the width direction of the single-system double-door refrigerator.
[0016] In one embodiment, the number of the refrigerated air outlets is configured to be two.
[0017] In one embodiment, in the height direction of the single-system double-door refrigerator, the refrigerated air inlet is arranged above the refrigerated air outlet.
[0018] It can be understood that through the above structural setting, using the physical phenomenon of cold air sinking, it can reduce the reverse flow of the cold air on the refrigerating evaporator side through the refrigerated return air duct to the refrigerating chamber, thus solving the problem of the low temperature on the refrigerated air inlet side of the refrigerating chamber caused by the reverse flow of cold air.
[0019] In one embodiment, the number of the refrigerating air inlets is configured to be at least two, and at least two of the refrigerating air outlets are arranged in sequence along the width direction of the single-system double-door refrigerator.
[0020] In one embodiment, the refrigerating air inlet is arranged at the back of the refrigerating chamber;
[0021] And, the refrigerating air inlet is arranged at the lower part of the refrigerating chamber in the height direction of the single-system double-door refrigerator.
[0022] In one embodiment, the single-system double-door refrigerator further includes a foaming layer;
[0023] The refrigerating return air duct is installed in the foaming layer in a pre-buried manner.
[0024] It can be understood that by pre-burying the refrigerating return air duct into the foaming layer, on the one hand, the assembly connection of the refrigerating return air duct in the single-system double-door refrigerator is realized, and on the other hand, the influence of the refrigerating return air in the refrigerating return air duct on the temperature of the freezing chamber is avoided.
[0025] In one embodiment, a freezing fan is further installed in the freezing chamber, and the freezing fan is arranged on the passage between the freezing air duct and the refrigerating air damper for exhausting the freezing air in the freezing air duct to the refrigerating chamber.
[0026] Due to the application of the above technical solution, the present utility model has the following advantages compared with the prior art:
[0027] For the single-system double-door refrigerator claimed in the present application, the refrigerating air outlet on the refrigerating return air duct is arranged at the back of the freezing evaporator, so that the refrigerating return air during the return air of the refrigerating chamber can be evenly blown towards the freezing evaporator, avoiding the refrigerating return air being blown towards the freezing evaporator from the side close to the refrigerating chamber. In this way, the refrigerating return air can evenly frost on the freezing evaporator when passing through the freezing evaporator. Thus, not only can the resistance during the return air of the refrigerating return air be reduced, ensuring the air circulation efficiency of the refrigerating chamber, but also the defrosting time of the freezing evaporator can be shortened, reducing the heat load of the freezing chamber, thereby reducing the power consumption when the single-system double-door refrigerator works. Description of the Drawings
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0029] Figure 1The front view of the single-system double-door refrigerator provided by an embodiment of the present application.
[0030] Figure 2 The left view of the single-system double-door refrigerator provided by an embodiment of the present application.
[0031] Figure 3 The rear view of the single-system double-door refrigerator provided by an embodiment of the present application.
[0032] Reference numerals: 100, single-system double-door refrigerator; 10, freezer compartment; 11, freezer evaporator; 111, fins; 12, freezer air duct; 13, freezer fan; 20, refrigerator compartment; 30, refrigerator air damper; 40, refrigerator return air duct; 41, refrigerator air inlet; 42, refrigerator air outlet; 101, foam layer. Detailed implementation manners
[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0034] It should be noted that when an element is referred to as being "provided on" another element, it can be directly provided on the other element or there may also be an intermediate element. When an element is considered to be "provided on" another element, it can be directly provided on the other element or there may be an intermediate element at the same time. When an element is considered to be "fixed to" another element, it can be directly fixed to the other element or there may be an intermediate element at the same time.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0036] Such as Figure 1 、 Figure 2As shown, the single-system double-door refrigerator 100 for which protection is requested in the present application comprises a freezer compartment 10, a refrigerating compartment 20, a refrigerating damper 30 and a refrigerating return air duct 40. A freezing evaporator 11 and a freezing air duct 12 are installed in the freezer compartment 10, and the freezing evaporator 11 is arranged in the freezing air duct 12; the refrigerating compartment 20 is arranged on one side of the freezer compartment 10 in the width direction of the single-system double-door refrigerator 100 and is independently arranged relative to the freezer compartment 10, and the refrigerating compartment 20 is connected with the freezing air duct 12; the refrigerating damper 30 is arranged between the refrigerating compartment 20 and the freezer compartment 10, and is used to control the on / off between the refrigerating compartment 20 and the freezing air duct 12; the refrigerating return air duct 40 has a refrigerating air inlet 41 and a refrigerating air outlet 42, the refrigerating air inlet 41 is connected with the refrigerating compartment 20, and the refrigerating air outlet 42 is arranged on the back of the freezing evaporator 11. Here, the back side of the freezing evaporator 11 specifically refers to the side of the freezing evaporator 11 on the freezing evaporator 11 away from the refrigerator door (not shown) where the freezing chamber 10 is located. It should be noted that the refrigerated return air (not shown) blown out by the refrigerated air outlet 42 on the refrigerated return air duct 40 can cover the freezing evaporator 11 in the width direction of the single-system double-door refrigerator 100.
[0037] It can be understood that the refrigerated air outlet on the refrigerated return air duct 40 is set on the back of the freezing evaporator 11, so that the refrigerated return air of the refrigerated chamber 20 can be evenly blown to the freezing evaporator 11, avoiding the refrigerated return air from the side close to the refrigerated chamber 20 to blow to the freezing evaporator 11, so that the refrigerated return air can be evenly frosted on the freezing evaporator 11 when passing through the freezing evaporator. In this way, not only the resistance of the refrigerated return air during return can be reduced, ensuring the wind circulation efficiency of the refrigerated chamber 20, but also the defrosting time of the freezing evaporator 11 can be shortened, and the heat load of the freezing chamber 10 can be reduced, thereby reducing the power consumption of the single-system double-door refrigerator 100 during operation. It should be noted that since the frost is evenly formed on the freezing evaporator 11, when the freezing evaporator 11 is defrosted, the uniform frost layer on the freezing evaporator 11 can be melted simultaneously, thereby avoiding temperature rise and ineffective heating caused by excessive local heating, shortening the heating time of the defrosting heating wire, reducing the temperature rise of the refrigeration chamber 20 and the freezer chamber 10 caused by defrosting heating, and reducing the problems of heat deformation of peripheral accessories due to long heating time during defrosting electric heating; shortening the electric heating time and reducing the power consumption of the refrigerator.
[0038] like Figure 1 , Figure 2As shown in the figure, a refrigeration fan 13 is also installed in the freezer compartment 10. The refrigeration fan 13 is arranged on the passage between the refrigeration air duct 12 and the refrigerating air damper 30, and is used to extract and discharge the refrigerated air in the refrigeration air duct 12 to the refrigerating compartment 20. That is to say, when the single-system double-door refrigerator 100 works, as can be seen from the above, in the single-system double-door refrigerator 100 of the present application, when the refrigerating compartment 20 needs to be refrigerated, the refrigeration fan 13 operates, the refrigerating air damper 30 opens, and the refrigerated air cooled by the refrigeration evaporator 11 will pass through the refrigeration fan 13 and the refrigerating air damper 30 and be sent into the refrigerating compartment 20. The air that has exchanged heat with the refrigerating compartment 20 will return through the refrigerating return air duct 40 and be re-transported to the side of the refrigeration evaporator 11, and the circulation of the refrigerating return air is realized. That is, the refrigerated air cooled required for refrigerating the refrigerating compartment 20 is provided by the refrigeration air duct 12 of the freezer compartment 10 and meets the design requirements of the single-system double-door refrigerator 100.
[0039] As Figure 2 shown, the single-system double-door refrigerator 100 further includes a foaming layer 101. The refrigerating return air duct 40 is installed in the foaming layer 101 in a pre-buried manner, and the assembly connection of the refrigerating return air duct 40 in the single-system double-door refrigerator 100 is realized. In this way, by using the structural characteristics of the foaming layer 101, the refrigerating return air duct 40 can be insulated, so as to avoid the influence of the return air of the refrigerating return air (not shown in the figure) in the refrigerating return air duct 40 on the temperature of the freezer compartment 10. It should be noted that the above-mentioned foaming layer 101 is a conventional structure of the single-system double-door refrigerator 100 and will not be elaborated here.
[0040] As Figure 1 、 Figure 3 shown, in the height direction of the single-system double-door refrigerator 100, the refrigerating air inlet 41 is arranged above the refrigerating air outlet 42. In this way, by using the physical phenomenon of cold air sinking, the cold air on the side of the refrigeration evaporator 11 can be reduced from flowing back to the refrigerating compartment 20 through the refrigerating return air duct 40, thus solving the problem of the low temperature on the side of the refrigerating air inlet 41 of the refrigerating compartment 20 caused by the backflow of cold air. Here, the refrigerating air inlet 41 is arranged on the back of the refrigerating compartment 20, and the refrigerating air inlet 41 is arranged at the lower part of the refrigerating compartment 20 in the height direction of the single-system double-door refrigerator 100 to meet the use requirement of the bottom return of the refrigerating return air in the refrigerating compartment 20.
[0041] Preferably, as Figure 1 、 Figure 3 shown, the number of the refrigerating air inlets 41 is configured to be at least two, and at least two refrigerating air inlets 41 are arranged in sequence along the width direction of the single-system double-door refrigerator 100. Here, the number of the refrigerating air inlets 41 is two. It can be understood that the number of the refrigerating air inlets 41 can also be one, three, four, or even more, which will not be elaborated here.
[0042] As Figure 1 shown, in the height direction of the single-system double-door refrigerator 100, the refrigerated air outlet 42 is arranged below the fins 111 of the freezer evaporator 11, so that the refrigerated return air blown out through the refrigerated air outlet 42 can evenly pass through the freezer evaporator 11, and ensure that the refrigerated return air evenly frosts on the freezer evaporator 11.
[0043] Preferably, as Figure 1 、 Figure 3 shown, along the flow direction of the refrigerated return air in the refrigerated return air duct 40, the air outlet area of the refrigerated air outlet 42 increases, so as to promote the consistent air volume of the refrigerated return air blown out by the refrigerated air outlet 42. In this way, it can be further ensured that the refrigerated return air evenly frosts on the freezer evaporator 11. It should be noted that since the flow velocity of the refrigerated return air in the refrigerated return air duct 40 will gradually decrease, combined with the increase in the air outlet area of the refrigerated air outlet 42, the air volume of the refrigerated return air blown out by the refrigerated air outlet 42 per unit time can be made consistent.
[0044] As Figure 1 、 Figure 3 shown, the number of the refrigerated air outlets 42 is configured to be at least two, and at least two refrigerated air outlets 42 are arranged in sequence along the width direction of the single-system double-door refrigerator 100. Here, the number of the refrigerated air outlets 42 is two, and the air outlet area of the refrigerated air outlet 42 closer to the refrigerating chamber 20 is smaller than that of the other refrigerated air outlet 42, so that the refrigerated return air in the refrigerating chamber 20 can enter the freezer evaporator 11 through the refrigerated air outlet 42, and the freezer evaporator 11 can be evenly frosted, rather than concentrated on one side of the freezer evaporator 11 close to the refrigerating chamber 20, resulting in uneven frosting on the freezer evaporator 11. Thus, when the subsequent defrosting heating is carried out on the freezer evaporator 11, the double layers on the freezer evaporator 11 can be evenly heated, and the melting speed of the frost layer can be uniform and synchronous, avoiding the situation that one side of the freezer evaporator 11 is defrosted while the frost layer on the other side has not melted yet, and the defrosting heating wire continues to heat, and the excess heat cannot be completely absorbed by the double layers and enters the freezer compartment 10 and / or the refrigerating chamber 20, resulting in an increase in the temperature of the compartment. That is to say, this design avoids the occurrence of the problem of local overheating causing an increase in the temperature of the freezer compartment 10 and / or the refrigerating chamber 20. It can be understood that the number of the refrigerated air outlets 42 can also be one, and the air outlet area of this refrigerated air outlet 42 gradually increases along the flow direction of the refrigerated return air in the refrigerated return air duct 40. Or, the number of the refrigerated air outlets 42 can be configured to be three, four, or even more, which will not be elaborated here.
[0045] In summary, for the single-system double-door refrigerator 100 of the present application, by adopting the left and right air return modes for the refrigerated air return, the refrigerated air return in the refrigerating chamber 20 can be blown out from the back of the freezing evaporator 11 under the guidance of the refrigerated air return pipe 40, so that the refrigerated air return can evenly frost on the freezing evaporator 11 when passing through the freezing evaporator.
[0046] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0047] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present utility model, rather than to limit the present utility model. As long as within the scope of the substantial spirit of the present utility model, appropriate changes and variations made to the above embodiments fall within the scope of protection required by the present utility model.
Claims
1. A single-system double-door refrigerator, characterized in that: The single-system double-door refrigerator (100) comprises: A freezing chamber (10) is provided with a freezing evaporator (11) and a freezing air duct (12), wherein the freezing evaporator (11) is arranged in the freezing air duct (12); a refrigerating chamber (20), arranged on one side of the freezing chamber (10) in the width direction of the single-system double-door refrigerator (100) and independently arranged relative to the freezing chamber (10), and the refrigerating chamber (20) is in communication with the freezing air duct (12); A refrigeration air door (30), arranged between the refrigeration chamber (20) and the freezing chamber (10), for controlling the opening / closing of the refrigeration chamber (20) and the freezing air duct (12); The refrigerated return air duct (40) has a refrigerated air inlet (41) and a refrigerated air outlet (42), wherein the refrigerated air inlet (41) is connected to the refrigerated chamber (20), and the refrigerated air outlet (42) is arranged on the back side of the refrigeration evaporator (11).
2. The single-system double-door refrigerator according to claim 1, characterized in that: In the height direction of the single-system double-door refrigerator (100), the refrigeration air outlet (42) is arranged below the fin (111) on the freezing evaporator (11).
3. The single-system double-door refrigerator according to claim 1, characterized in that: Along the flow direction of the refrigerated return air in the refrigerated return air duct (40), the air outlet area of the refrigerated air outlet (42) increases.
4. The single-system double-door refrigerator according to claim 3, characterized in that: The number of the refrigerated air outlets (42) is configured to be at least two, and the at least two refrigerated air outlets (42) are arranged in sequence along the width direction of the single-system double-door refrigerator (100).
5. The single-system double-door refrigerator according to claim 4, characterized in that: The number of the refrigeration air outlets (42) is configured to be two.
6. The single-system double-door refrigerator according to claim 1, characterized in that: In the height direction of the single-system double-door refrigerator (100), the refrigeration air inlet (41) is arranged above the refrigeration air outlet (42).
7. The single-system double-door refrigerator according to claim 1, characterized in that: The number of the refrigerated air inlets (41) is configured to be at least two, and at least two of the refrigerated air outlets (42) are arranged in sequence along the width direction of the single-system double-door refrigerator (100).
8. The single-system double-door refrigerator according to claim 1, characterized in that: The refrigeration air inlet (41) is arranged at the back of the refrigeration chamber (20); And, the refrigerated air inlet (41) is arranged at the lower part of the refrigerating chamber (20) in the height direction of the single-system double-door refrigerator (100).
9. The single-system double-door refrigerator according to claim 1, characterized in that: The single-system double-door refrigerator (100) further includes a foaming layer (101); The refrigerated air return duct (40) is installed in the foaming layer (101) in a pre-buried manner.
10. The single-system double-door refrigerator according to claim 1, characterized in that: A refrigeration fan (13) is also installed in the freezing chamber (10). The refrigeration fan (13) is arranged on the passage between the refrigeration air duct (12) and the refrigeration air door (30) and is used to exhaust the refrigeration air in the refrigeration air duct (12) to the refrigeration chamber (20).