Refrigerator

Abstract

The utility model discloses a refrigerator, including inner bag, first air duct, second air duct and air return, and the first air outlet is set up on the front wall of inner bag, and the second air outlet is set up on the back wall, first air duct sets up in the front wall, and one end of first air duct is communicated evaporator bin, and the other end and storage space are communicated through the first air outlet, second air duct sets up in the back wall, and one end of second air duct is communicated evaporator bin, and the other end and storage space are communicated through the second air outlet, and the first air outlet and the second air outlet all communicate evaporator bin through air return. The cold air produced by the evaporator is sent into the storage space from two directions evenly, effectively promotes the airflow circulation in the refrigerator, improves the uniform distribution of the cold air, ensures that all areas in the storage space can reach the set temperature in time, not only overcomes the temperature uneven problem of the traditional refrigerator caused by one-way air supply, but also significantly improves the refrigeration efficiency and energy utilization rate, realizes the effect of fast equalization and energy saving and emission reduction.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to a freezer. Background Technology

[0002] In traditional technology, freezers are often designed with unidirectional airflow, typically with an air outlet and corresponding duct on only one side of the inner liner, allowing cold air to enter the storage space from a single direction. This design easily leads to uneven temperature distribution within the freezer, with some areas receiving insufficient cold air, creating temperature dead zones and affecting the preservation of stored items. Simultaneously, due to poor airflow circulation, the freezer's cooling efficiency is low, reducing cooling speed and increasing energy consumption, thus negatively impacting the user's energy conservation, environmental protection, and operating costs. Summary of the Invention

[0003] To address the problem of insufficient temperature uniformity within existing freezers, the purpose of this invention is to provide a freezer that achieves more even temperature distribution and improved refrigeration efficiency. 。

[0004] To achieve the above-mentioned utility model objectives, one embodiment of this utility model provides a freezer, comprising:

[0005] The inner liner forms a storage space inside. An evaporator compartment is set at one end of the storage space along the length direction. An evaporator is set inside the evaporator compartment. The front wall and rear wall of the inner liner are arranged sequentially along the width direction. A first air outlet is set on the front wall and a second air outlet is set on the rear wall.

[0006] A first air duct is provided on the front wall, with one end of the first air duct connected to the evaporator compartment and the other end connected to the storage space through the first air outlet.

[0007] A second air duct is provided on the rear wall. One end of the second air duct is connected to the evaporator compartment, and the other end is connected to the storage space through the second air outlet.

[0008] The return air vent, the first air outlet and the second air outlet are both connected to the evaporator compartment through the return air vent.

[0009] As a further improvement of this utility model, the freezer includes a first fan and a second fan. The first fan is disposed between the evaporator and the first air duct, and the first fan drives the airflow to flow into the first air duct. The second fan is disposed between the evaporator and the second air duct, and the second fan drives the airflow to flow into the second air duct.

[0010] As a further improvement of this utility model, the first fan is disposed in the fan receiving cavity of the front wall, and the second fan is disposed in the fan receiving cavity of the rear wall. The fan receiving cavities of the front wall and the fan receiving cavities of the rear wall are respectively located on both sides of the evaporator. The evaporator compartment includes an evaporation chamber cover, and the return air port is located on the evaporation chamber cover, and the return air port is aligned between the front and rear ends of the evaporator.

[0011] As a further improvement of this utility model, both the first air duct and the second air duct include a vertical air duct and a horizontal air duct. The vertical air duct extends along the depth direction of the storage space, and the horizontal air duct extends along the length direction of the storage space. The evaporator compartment, the vertical air duct, and the horizontal air duct are connected in sequence.

[0012] As a further improvement of this utility model, the end of the vertical air duct is spliced ​​with the end of the horizontal air duct, and the entire horizontal air duct is located on one side of the horizontal direction of the vertical air duct.

[0013] As a further improvement of this utility model, the horizontal air duct is located on one side of the horizontal direction of the vertical air duct, and part of it is located on the other side of the horizontal direction of the vertical air duct.

[0014] As a further improvement of this utility model, the first air outlet is configured as a hole opened on the front wall towards the bottom of the storage space, and the second air outlet is configured as a hole opened on the rear wall towards the bottom of the storage space.

[0015] As a further improvement of this utility model, the first air duct includes a first upper air duct and a first lower air duct, and the second air duct includes a second upper air duct and a second lower air duct. The first upper air duct, the first lower air duct, the second upper air duct and the second lower air duct all extend along the length direction of the storage space. The first upper air duct is disposed above the first lower air duct, and the second upper air duct is disposed above the second lower air duct.

[0016] One end of the evaporator compartment is connected to both the first upper air duct and the first lower air duct, and the other end of the evaporator compartment is connected to both the second upper air duct and the second lower air duct.

[0017] As a further improvement of this utility model, the freezer includes an air supply assembly and a third fan. The air supply assembly includes an air inlet, a first air outlet and a second air outlet, and the air inlet is located between the first air outlet and the second air outlet. The first air outlet supplies air to the first air duct, and the second air outlet supplies air to the second air duct.

[0018] The third fan is disposed inside the air supply assembly, and the third fan blows the airflow flowing in from the air inlet toward the first air outlet and the second air outlet.

[0019] As a further improvement of this utility model, a compressor compartment is provided on the side or below the evaporator compartment;

[0020] The air supply assembly is located on the side of the evaporator near the compressor compartment, or on the side away from the compressor compartment, or on top of the evaporator.

[0021] As a further improvement of this utility model, the evaporator is configured as a single evaporator or a double evaporator.

[0022] Compared with commonly used technologies, this utility model has the following beneficial effects: by setting a first air outlet and a second air outlet on the front and rear walls of the inner liner respectively, and configuring corresponding first and second air ducts, the cold air generated by the evaporator is evenly sent into the storage space from two directions, which effectively promotes the airflow circulation inside the freezer, improves the uniform distribution of cold air, and ensures that each area in the storage space can reach the set temperature in time. This not only overcomes the problem of uneven temperature caused by unidirectional air supply in traditional freezers, but also significantly improves the refrigeration efficiency and energy utilization rate, achieving the beneficial technical effects of rapid temperature equalization and energy saving and emission reduction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the freezer according to the first embodiment of this utility model;

[0024] Figure 2 This is a cross-sectional view of the freezer according to the first embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the inner liner of the first embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the dual evaporator of the freezer according to the first embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the freezer according to the second embodiment of this utility model;

[0028] Figure 6 This is a structural schematic diagram of the freezer according to the third embodiment of this utility model;

[0029] Figure 7 This is a structural schematic diagram of the freezer according to the fourth embodiment of this utility model;

[0030] Figure 8 This is a structural schematic diagram of the dual evaporator of the freezer according to the fifth embodiment of this utility model;

[0031] Figure 9 This is a cross-sectional view of the dual evaporator of the freezer according to the fifth embodiment of this utility model;

[0032] Figure 10 This is a schematic diagram of the structure of the single evaporator of the freezer according to the fifth embodiment of this utility model;

[0033] Figure 11 This is a schematic diagram of the structure of the single evaporator of the freezer according to the sixth embodiment of this utility model;

[0034] Figure 12 This is a schematic diagram of the structure of the double evaporator of the freezer according to the sixth embodiment of this utility model;

[0035] Figure 13 This is a structural schematic diagram of the dual evaporator of the freezer according to the seventh embodiment of this utility model;

[0036] Among them, 100 is the freezer; 10 is the inner liner; 101 is the storage space; 11 is the front wall; 111 is the first air outlet; 12 is the rear wall; 121 is the second air outlet; 20 is the evaporator compartment; 21 is the evaporator cover; 211 is the return air outlet; 22 is the dual evaporator; 23 is the single evaporator; 30 is the first air duct; 31 is the first upper air duct; 32 is the first lower air duct; 40 is the second air duct; 41 is the second upper air duct; 42 is the second lower air duct; 50 is the compressor compartment; 61 is the fan housing cavity; 62 is the vertical air duct; 63 is the horizontal air duct; 70 is the air supply assembly; 71 is the air inlet; 72 is the first air supply outlet; 73 is the second air supply outlet; T1 is the length direction; T2 is the width direction; T3 is the depth direction. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0038] It should be understood that terms such as “above,” “over,” “below,” and “under” used herein to indicate spatial relative position are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms “spatial relative position” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0039] One embodiment of this utility model provides a freezer that achieves a more even temperature distribution and improves refrigeration efficiency.

[0040] The freezer 100 in this embodiment includes an inner liner 10, such as Figure 1As shown, the inner liner 10 forms a storage space 101 inside. The storage space 101 is roughly rectangular in shape, with its length direction T1 being the direction of the longer side of the cuboid, its width direction T2 being the direction of the wider side of the cuboid, and its depth direction T3 being the direction of the height of the cuboid. These directions can be referenced... Figure 1 and 2 As shown.

[0041] The storage space 101 has an opening, and the storage space 101 has a bottom wall and four side walls, including a front wall 11 and a rear wall 12.

[0042] To clearly express the position and direction described in this embodiment, up and down are defined with reference to the direction of gravity. The freezer 100 in this embodiment can be a horizontal freezer 100, which is generally placed on a horizontal surface with its opening facing upwards. The length direction T1 of the freezer 100 is the left-right direction, the width direction T2 is the front-back direction, and the depth direction T3 is the up-down direction. The front wall 11 is located at the front of the storage space 101, the rear wall 12 is located at the rear of the storage space 101, and the bottom wall is located at the bottom of the storage space 101.

[0043] An evaporator compartment 20 is provided at one end of the storage space 101 along the length direction T1, and an evaporator is provided in the evaporator compartment 20. The front wall 11 and the rear wall 12 of the inner liner 10 are arranged sequentially along the width direction T2. ​​A first air outlet 111 is provided on the front wall 11, and a second air outlet 121 is provided on the rear wall 12.

[0044] As attached Figure 1 and 2 As shown, the first air outlet 111 discharges air to the rear, and the second air outlet 121 discharges air to the front, both used to introduce cold air into the storage space 101. The evaporator compartment 20 is located on the right side inside the freezer 100.

[0045] The first air duct 30 is arranged on the front wall 11, with one end connected to the evaporator compartment 20 and the other end connected to the storage space 101 through the first air outlet 111; the second air duct 40 is arranged on the rear wall 12, with one end also connected to the evaporator compartment 20 and the other end connected to the storage space 101 through the second air outlet 121.

[0046] The first air duct 30 and the second air duct 40 allow cold air from the evaporator to enter the storage space 101 evenly from both the front and rear directions, thus effectively avoiding the problem of uneven temperature distribution under a single air supply method.

[0047] The evaporator compartment 20 can be located at one end of the inner liner 10 and separated from other areas of the storage space 101 by a properly designed sealing structure, ensuring that cold air enters the storage space 101 only through predetermined air ducts. When the evaporator starts working, the cold air it generates first enters the evaporator compartment 20, and then passes through the first air duct 30 and the second air duct 40 respectively, and is discharged from their respective air outlets, forming a two-way air supply. At the same time, through the pre-set return air inlet 211, the air in the storage space 101 can be circulated back to the evaporator compartment 20 to participate in a new round of cooling process, realizing continuous air circulation and effective heat removal.

[0048] This embodiment adopts a bidirectional air supply design, which is simple in structure and easy to manufacture. The front wall 11 and rear wall 12 of the inner liner 10 are each equipped with independent air outlets and corresponding air ducts, which not only makes the cold air flow more evenly within the storage space 101, but also effectively improves the temperature gradient problem within the freezer 100. Furthermore, this structure can reduce energy consumption while improving system cooling efficiency, achieving rapid cooling and temperature uniformity, thereby enhancing the overall performance and energy-saving effect of the freezer 100.

[0049] Furthermore, with airflow supplied simultaneously from the front wall 11 and the rear wall 12, the two airflows may converge in the storage space 101, forming a confluence or even a vortex, creating a cold air mixing zone. This airflow agitation can prevent the formation of "hot and cold spots," improve the temperature uniformity of the entire storage space 101, and enhance the heat exchange efficiency of the cold air, allowing the goods to cool down more quickly and evenly.

[0050] Especially when many items are placed from bottom to top inside a refrigerated display case, some areas may experience poor airflow due to structural obstructions or stacked goods, creating "hot zones" or "cold blind spots." The opposing or converging of bidirectional airflow can cover more directions, penetrate gaps between goods, and create dynamic air turbulence, effectively preventing temperature stratification, clearing heat buildup in certain areas, and improving temperature control stability.

[0051] More specifically, when the cold air from the front wall 11 and the rear wall 12 meets at a certain speed and angle, the differences in their speed, density, and direction cause shear separation of the airflow, forming vortices and turbulent regions. This vortex effect helps to break the steady flow field that might otherwise form, allowing air of different temperatures to mix fully, thereby accelerating the transfer and equalization of heat throughout the storage space 101.

[0052] From a heat transfer perspective, the locally generated turbulence enhances convective heat transfer, significantly increasing the heat exchange rate between cold and warmer air. The instability of the airflow diffuses the cold air, originally confined to a localized area, into a wider space, while also promoting a more uniform temperature distribution within storage space 101. Under the influence of turbulence, the rapid diffusion between molecules weakens or even eliminates the temperature gradient.

[0053] In addition, the generation of eddies and turbulence can reduce the thickness of the gas stagnant layer, thereby reducing the thermal resistance of the airflow interface, which accelerates the heat exchange between the cold air and the air in other areas of the room, and prevents the formation of "hot spots" or "cold spots" with large temperature differences due to the long-term stagnation of local air.

[0054] In this embodiment, air outlets are provided only on the front wall 11 and the rear wall 12, and no air outlets are provided on the front wall 11 and the rear wall 12 of the inner liner 10. This can prevent the air blown out from the air outlets of the front wall 11 or the rear wall 12 from affecting the cold air mixing zone generated in this embodiment, and prevent airflow from other directions from causing internal airflow disturbance, so as to prevent the formation of the ideal airflow expected by this design.

[0055] In summary, this embodiment achieves bidirectional output of cold air to the evaporator by setting air outlets on the front wall 11 and rear wall 12 of the inner liner 10, and cooperating with the first air duct 30 and the second air duct 40 connected thereto. This forms a turbulent mixed flow field, which can effectively improve the cooling effect and temperature uniformity of the freezer 100. It helps to improve the problems of large temperature difference and concentrated cold zone in traditional unidirectional air-flow freezers 100, thereby further improving the storage performance and user experience of the freezer 100.

[0056] The following will elaborate on this with several embodiments.

[0057] Example 1

[0058] This implementation example Figures 1-4 As shown, the freezer 100 includes a first fan and a second fan. The first fan is disposed between the evaporator and the first air duct 30, and the first fan drives the airflow to flow to the first air duct 30. The second fan is disposed between the evaporator and the second air duct 40, and the second fan drives the airflow to flow to the second air duct 40.

[0059] In the figure, the first fan and the second fan are symmetrically arranged on the front and rear sides of the evaporator compartment 20. Through this symmetrical arrangement of the dual fans, bidirectional independent air supply to the front and rear walls 12 can be achieved, improving the overall air supply capacity. The air volume on both sides can be adjusted separately as needed to achieve more precise temperature control.

[0060] Furthermore, the first fan is disposed in the fan receiving cavity 61 of the front wall 11, and the second fan is disposed in the fan receiving cavity 61 of the rear wall 12. The fan receiving cavity 61 of the front wall 11 and the fan receiving cavity 61 of the rear wall 12 are respectively located on both sides of the evaporator.

[0061] The evaporator compartment 20 includes an evaporator cover 21, which has thermal insulation properties to prevent cold leakage and ensure that the airflow follows the designed path.

[0062] The return air vent 211 is located on the evaporator cover 21, and the return air vent 211 is aligned between the front and rear ends of the evaporator.

[0063] This embodiment 1 includes two cases: a single evaporator 23 and a double evaporator 22. In the structure of the single evaporator 23, the return air inlet 211 can be aligned with the evaporator. In this way, after the airflow is blown into the evaporator, it flows forward and backward respectively, passes through the evaporator, and reaches the fan receiving cavity 61 of the front wall 11 and the fan receiving cavity 61 of the rear wall 12 respectively.

[0064] In the structure of the dual evaporator 22, the return air inlet 211 can be aligned with one or both evaporators, or aligned with the middle of the two evaporators, and the airflow moves to the first fan on the front side and the second fan on the rear side, respectively.

[0065] The freezer 100 in this embodiment achieves independent air supply to the front and rear walls 12. Moreover, through the arrangement of dual fans and the central return air method, a relatively closed, symmetrical, and efficient circulating air field is formed within the storage space 101, which reduces energy consumption while ensuring cooling performance. In addition, the fan housing cavity 61 can effectively insulate and reduce noise, improving the overall quietness of the unit.

[0066] Furthermore, in Embodiment 1 and other embodiments below, the first air duct 30 can be configured to include a first upper air duct 31 and a first lower air duct 32, and the second air duct 40 can include a second upper air duct 41 and a second lower air duct 42. The first upper air duct 31, the first lower air duct 32, the second upper air duct 41 and the second lower air duct 42 all extend along the length direction T1 of the storage space 101. The first upper air duct 31 is disposed above the first lower air duct 32, and the second upper air duct 41 is disposed above the second lower air duct 42.

[0067] One end of the evaporator compartment 20 is connected to both the first upper air duct 31 and the first lower air duct 32, and the other end of the evaporator compartment 20 is connected to both the second upper air duct 41 and the second lower air duct 42.

[0068] Through this layered air supply structure, the freezer 100 achieves two-stage cold air delivery in the vertical direction. It can use the upper air duct to cool the upper area and the lower air duct to cool the lower area, thereby making the longitudinal temperature distribution in the storage space 101 more uniform.

[0069] Layered air supply design helps avoid temperature blind spots and local temperature differences, improves overall cooling uniformity, and facilitates flexible adjustment in different usage spaces. For example, by setting air dampers in different locations and independently controlling the opening and closing of each damper, more precise temperature management can be achieved for the special temperature control needs of items above or below.

[0070] Example 2

[0071] This implementation example Figure 5 As shown, both the first air duct 30 and the second air duct 40 include a vertical air duct 62 and a horizontal air duct 63. The vertical air duct 62 extends along the depth direction T3 of the storage space 101, and the horizontal air duct 63 extends along the length direction T1 of the storage space 101. The evaporator compartment 20, the vertical air duct 62, and the horizontal air duct 63 are connected in sequence.

[0072] The vertical air duct 62 extends in the up-down direction, and the horizontal air duct 63 extends in the left-right direction. The airflow blown out of the evaporator compartment 20 flows upward along the vertical air duct 62, and then blows out evenly in the left-right direction along the horizontal air duct 63.

[0073] This structure not only allows cold air to diffuse fully during transmission, but also facilitates the rational control of airflow direction, ensuring overall temperature balance and efficient air circulation.

[0074] In this embodiment, the transverse air duct 63 is partially located on one side of the transverse direction of the vertical air duct 62, and partially located on the other side of the transverse direction of the vertical air duct 62.

[0075] After passing through the vertical air duct 62, the airflow then diffuses to the left and right within the horizontal air duct 63, fully covering all areas within the storage space 101. This distribution method not only avoids the formation of localized temperature differences but also allows for more precise control of the temperature gradient within the storage space 101, meeting the needs of applications with higher temperature control requirements.

[0076] like Figure 5 As shown, most of the horizontal air ducts 63 are located on the left side of the vertical air ducts 62, and a small portion are located on the right side of the vertical air ducts 62.

[0077] In the structure of the spliced ​​inner liner 10, a corresponding splicing structure needs to be set on the right side of the vertical air duct 62 to meet the requirement of setting a small number of horizontal air ducts 63 on the right side of the vertical air duct 62.

[0078] Additionally, a compressor compartment 50 is provided to the side or below the evaporator compartment 20. Figure 5 and 6 In this embodiment, the compressor compartment 50 is located on the right side of the evaporator compartment 20. In other embodiments, the compressor compartment 50 may also be located below the evaporator compartment 20.

[0079] Example 3

[0080] In this embodiment, the end of the vertical air duct 62 is spliced ​​with the end of the horizontal air duct 63, and the entire horizontal air duct 63 is located on one side of the horizontal direction of the vertical air duct 62.

[0081] In this way Figure 6 As shown, the vertical air duct 62 and the horizontal air duct 63 are connected to form an L-shape.

[0082] Compared to Embodiment 2, although this embodiment has one less section of horizontal air duct 63 on the right side of the vertical air duct 62, which affects the uniformity of cooling, the inner liner 10 on the right side of the vertical air duct 62 can be set as a whole. Especially for sheet metal structures, reducing splicing structures makes the sheet metal parts stronger.

[0083] Example 4

[0084] Furthermore, the first air outlet 111 is configured as a hole opened on the front wall 11 toward the bottom of the storage space 101, and the second air outlet 121 is configured as a hole opened on the rear wall 12 toward the bottom of the storage space 101.

[0085] like Figure 7 As shown, the first air outlet 111 and the second air outlet 121 both face downwards to allow the cold air to flow downwards. When the cold air enters the storage space 101, it is delivered downwards at a predetermined angle, which makes it easier for the cold air to form a natural downward flow trend in the storage space 101, thereby achieving a more balanced distribution of the cold air. It also prevents the cold air from blowing upwards onto the glass door and causing frost or condensation on the door.

[0086] Taking the inner liner 10 as an example, which is a sheet metal part, the first air outlet 111 and the second air outlet 121 can be multiple holes punched out on the sheet metal part.

[0087] Example 5

[0088] Furthermore, the freezer 100 includes an air supply assembly 70 and a third fan. The air supply assembly 70 includes an air inlet 71, a first air outlet 72, and a second air outlet 73. The air inlet 71 is aligned between the front and rear ends of the evaporator and is located between the first air outlet 72 and the second air outlet 73. The first air outlet 72 supplies air to the first air duct 30, and the second air outlet 73 supplies air to the second air duct 40.

[0089] A centrifugal fan is installed inside the air supply assembly 70. The third fan is radially connected to the air inlet 71 and circumferentially connected to the first air outlet 72 and the second air outlet 73. The third fan is radially connected to the air inlet 71 and has two output channels circumferentially connected to the first air duct 30 and the second air duct 40, respectively, so that the cold air drawn in from the air inlet is simultaneously and evenly distributed to the first air duct 30 and the second air duct 40.

[0090] This design, requiring only a third fan, enables independent air supply in both directions, simplifying the system configuration and achieving efficient airflow distribution within a limited space.

[0091] In addition, the third fan can be set as a centrifugal fan or an axial fan. The integrated air supply component 70 can ensure that the cold air is fully stirred and homogenized before entering the storage space 101. The temperature and wind speed of the air on the front and back sides are almost the same, and there will be no problem of temperature difference between the front and back sides leading to condensation.

[0092] like Figures 8-10 As shown, in this embodiment, the air supply components 70 are all located on the top of the evaporator, and the return air inlet 211 of embodiment 5 can be set on both sides of the air inlet 71.

[0093] Figure 8 and 9 The structure of the dual evaporator 22 is shown. In this case, the return air vent 211 cannot be set between the two evaporators, so as to prevent the airflow from entering the air inlet 71 directly without passing through the evaporator after entering from the return air vent 211.

[0094] In one embodiment, a return air inlet 211 is provided on the front side of the evaporator on the front side, and another return air inlet 211 is provided on the rear side of the evaporator on the rear side.

[0095] After the airflow enters the evaporator from the front and rear sides respectively, it converges in the middle of the two evaporators and enters the air inlet 71 above.

[0096] Figure 10 The structure of a single evaporator 23 is shown, in which the return air vent 211 can be located at any position facing the evaporator compartment 20.

[0097] Example 6

[0098] In this embodiment, the air supply assembly 70 is disposed on the side of the evaporator near the compressor compartment 50, such as... Figure 11 and 12 As shown, the air supply assembly 70 is located on the right side of the evaporator, which results in a relatively compact layout.

[0099] Figure 11The structure of a single evaporator 23 is shown, as described in Embodiment 5, such that the return air vent 211 can be positioned at any location facing the evaporator compartment 20.

[0100] Figure 12 The structure of the dual evaporator 22 is shown as described in Example 5, such that the return air vent 211 needs to avoid facing between the two evaporators.

[0101] Example 7

[0102] In this embodiment, the air supply assembly 70 is located on the side away from the compressor compartment 50, such as... Figure 13 As shown, the air supply assembly 70 is located on the left side of the evaporator to meet the shape requirements of different devices.

[0103] By adjusting the position of the air supply assembly 70, the drainage requirements of the evaporator compartment 20 to the compressor compartment 50 can also be met when the evaporator compartment 20 is located on the side of the compressor compartment 50, rather than on top of it.

[0104] Compared with the prior art, this embodiment has the following beneficial effects:

[0105] By setting a first air outlet 111 and a second air outlet 121 on the front wall 11 and rear wall 12 of the inner liner 10 respectively, and configuring corresponding first air ducts 30 and second air ducts 40, the cold air generated by the evaporator is evenly sent into the storage space 101 from two directions. This effectively promotes the airflow circulation inside the freezer 100, improves the uniform distribution of cold air, and ensures that each area in the storage space 101 can reach the set temperature in time. This not only overcomes the problem of uneven temperature caused by unidirectional air supply in traditional freezers 100, but also significantly improves the refrigeration efficiency and energy utilization rate, achieving the beneficial technical effects of rapid temperature equalization and energy saving and emission reduction.

[0106] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0107] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A freezer, characterized in that, include: The inner liner forms a storage space inside. An evaporator compartment is set at one end of the storage space along the length direction. An evaporator is set inside the evaporator compartment. The front wall and rear wall of the inner liner are arranged sequentially along the width direction. A first air outlet is set on the front wall and a second air outlet is set on the rear wall. A first air duct is provided on the front wall, with one end of the first air duct connected to the evaporator compartment and the other end connected to the storage space through the first air outlet. A second air duct is provided on the rear wall. One end of the second air duct is connected to the evaporator compartment, and the other end is connected to the storage space through the second air outlet. The return air vent, the first air outlet and the second air outlet are both connected to the evaporator compartment through the return air vent.

2. The freezer according to claim 1, characterized in that, The freezer includes a first fan and a second fan. The first fan is disposed between the evaporator and the first air duct, and the first fan drives the airflow to flow into the first air duct. The second fan is disposed between the evaporator and the second air duct, and the second fan drives the airflow to flow into the second air duct.

3. The freezer according to claim 2, characterized in that, The first fan is disposed in the fan receiving cavity of the front wall, and the second fan is disposed in the fan receiving cavity of the rear wall. The fan receiving cavities of the front wall and the fan receiving cavities of the rear wall are respectively located on both sides of the evaporator. The evaporator compartment includes an evaporation chamber cover, and the return air inlet is located on the evaporation chamber cover and is aligned between the front and rear ends of the evaporator.

4. The freezer according to claim 1, characterized in that, Both the first and second air ducts include a vertical air duct and a horizontal air duct. The vertical air duct extends along the depth direction of the storage space, and the horizontal air duct extends along the length direction of the storage space. The evaporator compartment, the vertical air duct, and the horizontal air duct are connected in sequence.

5. The freezer according to claim 4, characterized in that, The end of the vertical air duct is spliced ​​to the end of the horizontal air duct, and the entire horizontal air duct is located on one side of the horizontal direction of the vertical air duct.

6. The freezer according to claim 4, characterized in that, The horizontal air duct is partially located on one side of the horizontal direction of the vertical air duct, and partially located on the other side of the horizontal direction of the vertical air duct.

7. The freezer according to claim 4, characterized in that, The first air outlet is configured as a hole on the front wall leading to the bottom of the storage space, and the second air outlet is configured as a hole on the rear wall leading to the bottom of the storage space.

8. The freezer according to claim 1, characterized in that, The first air duct includes a first upper air duct and a first lower air duct, and the second air duct includes a second upper air duct and a second lower air duct. The first upper air duct, the first lower air duct, the second upper air duct and the second lower air duct all extend along the length of the storage space. The first upper air duct is located above the first lower air duct, and the second upper air duct is located above the second lower air duct. One end of the evaporator compartment is connected to both the first upper air duct and the first lower air duct, and the other end of the evaporator compartment is connected to both the second upper air duct and the second lower air duct.

9. The freezer according to claim 1, characterized in that, The freezer includes an air supply assembly and a third fan. The air supply assembly includes an air inlet, a first air outlet and a second air outlet, and the air inlet is located between the first air outlet and the second air outlet. The first air outlet supplies air to the first air duct, and the second air outlet supplies air to the second air duct. The third fan is disposed inside the air supply assembly, and the third fan blows the airflow flowing in from the air inlet toward the first air outlet and the second air outlet.

10. The freezer according to claim 9, characterized in that, A compressor compartment is provided on the side or below the evaporator compartment; The air supply assembly is located on the side of the evaporator near the compressor compartment, or on the side away from the compressor compartment, or on top of the evaporator.

11. The freezer according to claim 1, characterized in that, The evaporator is configured as a single evaporator or a dual evaporator.

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