Independent air circulation liner assembly and multi-system refrigerator

Abstract

The utility model relates to the technical field of refrigerators, and provides an independent air circulation inner container assembly which comprises an inner container body, and an air channel assembly close to the inner side face of the back of the inner container body is arranged in the inner container body. The air duct assembly comprises an air duct cover plate and a base plate covering the back face of the air duct cover plate. The air duct cover plate is sunken to form a receding space, and an evaporator is installed in the receding space. The air duct cover plate is further provided with a plurality of air return ports located below the receding space. A fan cavity is formed in the air duct cover plate, and a centrifugal fan is mounted in the fan cavity; the air duct cover plate is further provided with a main air duct communicating with the fan cavity. The main air duct extends to the side face of the air duct cover plate to form a main air supply outlet. Therefore, air is supplied to the inner container body through the independent evaporator air duct assembly, and independent air circulation is achieved. And the temperature in the liner body is accurately controlled. In addition, air leakage with other chambers is avoided, and the situation that peculiar smell of articles stored in other chambers pollutes the articles stored in the other chambers is avoided. The utility model provides a multi-system refrigerator.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerators, and in particular relates to an independent air circulation inner tank assembly and a multi-system refrigerator. Background Art

[0002] Most existing refrigerators share the same evaporator for cooling the freezer and refrigerator compartments. The cold air first enters the freezer compartment, then enters the refrigerator compartment after the temperature rises, and finally flows back to the evaporator to complete an air cycle. Since the air flows in series between the freezer compartment and the refrigerator compartment, the temperature of the refrigerator compartment cannot be accurately controlled, affecting its safety capability.

[0003] Most users are used to storing foods with strong odors, such as raw fish and raw meat, in the freezer, and storing ready-to-eat foods, such as fresh milk, fruits and vegetables, and cooked food, in the refrigerator. When the cold air flows through the freezer, it brings the odor into the refrigerator, affecting the taste of the food stored in the refrigerator.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the utility model mainly provides an independent air circulation liner assembly to solve the technical problem of independent refrigeration of the refrigerated compartment.

[0006] In order to solve the above problems, the utility model provides an independent air circulation liner assembly, including an liner body, wherein the liner body is provided with an air duct component close to the inner side surface of the back thereof;

[0007] The air duct assembly includes an air duct cover plate and a base plate covering the back of the air duct cover plate; a recessed space is formed on the air duct cover plate, and an evaporator is installed in the space; the air duct cover plate 1 is also provided with a plurality of return air ports located below the space;

[0008] The air duct cover plate is provided with a fan cavity, in which a centrifugal fan is installed; the air duct cover plate is also provided with a main air duct connected with the fan cavity; the main air duct extends to the side position of the air duct cover plate to form a main air supply port.

[0009] According to the independent air circulation liner assembly of the utility model, the main air duct extends to two side surfaces of the air duct cover plate respectively, and a group of main air supply ports are formed on each side surface.

[0010] According to the independent air circulation liner assembly of the utility model, a main air door is provided at the intersection of the fan chamber and the main air duct; the main air door is configured to: control the air volume in the main air duct by controlling the opening of the main air door; control the main air duct to be turned on or off by controlling the opening or closing of the main air door;

[0011] The air duct cover plate is provided with a first branch air duct and a second branch air duct connected to the fan cavity; a first branch air door is provided at the intersection of the fan cavity and the first branch air duct, and a second branch air door is provided at the intersection of the fan cavity and the second branch air duct;

[0012] The first branch damper is configured to control the air volume in the first branch air duct by controlling the opening of the first branch damper; the second branch damper is configured to control the air volume in the second branch air duct by controlling the opening of the second branch damper;

[0013] The air duct cover plate is provided with a first branch air supply port connected to the first branch air duct and a second branch air supply port connected to the second branch air duct.

[0014] According to the independent air circulation liner assembly of the utility model, a sealing plate is provided between the air duct cover plate and the base plate; the sealing plate is made of a flexible material and is configured to form a surface contact with the air duct cover plate to form a sealing structure.

[0015] According to the independent air circulation liner assembly of the utility model, a decorative plate is arranged on the front of the air duct cover plate; and a decorative light strip is arranged on both sides of the air duct cover plate.

[0016] According to the independent air circulation liner assembly of the utility model, a water guide inclined plate is provided below the clearance space, and a water guide bottom plate is provided below the water guide inclined plate.

[0017] According to the independent air circulation liner assembly of the utility model, the water guide inclined plates are two and are arranged in a V shape, and the connection position of the two water guide inclined plates forms a water collection nozzle.

[0018] According to the independent air circulation liner assembly of the utility model, an ion generator is also provided in the main air duct; a progress display component is installed on the air duct component; and the ion generator is connected to the progress display component.

[0019] According to the independent air circulation liner assembly of the utility model, the progress display component includes a panel seat, a light guide plate is provided on the front of the panel seat; a display film is provided between the panel seat and the light guide plate;

[0020] A digital display module is provided on the back of the panel seat, and the digital display module includes two or three digital bodies, each of which is composed of at least two light-transmitting strips arranged in a predetermined manner;

[0021] A display light source is also provided on the rear side of the digital display module; the display light source is configured to: illuminate the digital bodies of the digital display module in a predetermined order, so that the digital bodies present different numbers on the light guide plate;

[0022] It also includes a control module connected to the display light source; the control module is configured to control the display light source to emit light in a predetermined order according to the task progress, so as to illuminate the digital body of the digital display module.

[0023] The display light source is an indicator light board; a plurality of light source points are arranged on the indicator light board; the indicator light board is configured to: according to the signal of the control module, control the light source points in the corresponding area to light up or go out in a predetermined order, illuminate or go out the corresponding light-transmitting strips on the digital body, so that the digital body presents different numbers on the light guide plate.

[0024] A multi-system refrigerator comprises a refrigeration area, a freezing area and a temperature-changing area, wherein the refrigeration area comprises the independent air circulation inner tank assembly.

[0025] In summary, the inner tank assembly of the utility model realizes independent air circulation by having an independent evaporator air duct component to supply air to the inner tank body. The temperature in the inner tank body is precisely controlled. And there is no cross-wind with other compartments, avoiding the odor of items stored in other compartments and contaminating the items stored there. The utility model provides a multi-system refrigerator, each zone adopts an independent air circulation system, the temperature is precisely controllable, and cross-wind is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the inner tank assembly of the utility model from one direction;

[0027] Figure 2 It is a structural schematic diagram of the inner tank assembly of the utility model from one direction;

[0028] Figure 3 It is a structural schematic diagram of the air duct assembly of the utility model;

[0029] Figure 4 It is a structural schematic diagram of an embodiment of an air duct assembly of the utility model;

[0030] Figure 5 yes Figure 4 A is a schematic structural diagram of an embodiment;

[0031] Figure 6 yes Figure 4 A is a schematic structural diagram of an embodiment;

[0032] Figure 7 It is a schematic diagram of the internal structure of the air duct assembly of the utility model;

[0033] Figure 8 yes Figure 7 Schematic diagram of the structure of the middle B area;

[0034] Fig. 9 It is a structural schematic diagram of an embodiment of the air duct assembly of the utility model;

[0035] Fig.10 It is an exploded schematic diagram of the progress display component of the utility model;

[0036] Fig.11 It is a structural schematic diagram of the panel seat of the utility model;

[0037] Fig.12 yes Fig.11 The structural diagram of the middle A direction;

[0038] Fig.13 yes Fig.11 Schematic diagram of the structure of the middle B area;

[0039] Fig.14 yes Fig.12 Schematic diagram of the plane structure in the C direction;

[0040] In the figure: 1- air duct cover, 11- main air supply outlet, 12- air return outlet, 13- water guide inclined plate, 131- water conduit nozzle; 14- water guide bottom plate, 15- first branch air supply outlet, 16- second branch air supply outlet, 17- main air duct, 171- main air door; 18- first branch air duct, 181- first branch air door; 19- second branch air duct, 191- second branch air door; 2- centrifugal fan, 21- water outlet; 3- base plate, 31- sealing plate; 4- clearance space, 5- junction box, 51- through Wire hole, 52-wire groove; 6-decorative panel, 7-ion generator, 8-panel seat, 81-indicator light board, 82-light guide plate, 191-light board claw; 83-display film, 84-light guide strip, 841-light strip claw; 85-installation claw, 86-decorative hole, 87-light board hole, 88-light strip seat, 881-glare light strip; 9-digital display module, 91-positioning column, 92-light-transmitting strip; 100-inner tank, 200-air duct assembly, 300-progress display assembly, 400-evaporator. DETAILED DESCRIPTION

[0041] See also Figure 1 and Figure 2 The utility model provides an independent air circulation liner assembly, including an liner body 100, wherein the liner body 100 is provided with an air duct component 200 close to the inner side of the back thereof;

[0042] Combination Figure 3 and Figure 4 The air duct assembly 200 includes an air duct cover plate 1 and a base plate 3 covering the back of the air duct cover plate 1; a recessed space 4 is formed on the air duct cover plate 1, and an evaporator 400 is installed in the space 4; the air duct cover plate 1 is also provided with a plurality of return air ports 12 located below the space 4;

[0043] See also Figure 7The air duct cover plate 1 is provided with a fan cavity, in which a centrifugal fan 2 is installed; the air duct cover plate 1 is also provided with a main air duct 17 connected to the fan cavity; the main air duct 17 extends to the side position of the air duct cover plate 1 to form a main air supply port 11;

[0044] Cold air is sent into the inner tank body 100 from the main air supply port 11, and then returns from the return air port 12, forming an air cycle.

[0045] The inner tank assembly of the utility model supplies air to the inner tank body 100 through the air duct assembly 200 with an independent evaporator 400, thereby realizing independent air circulation. The temperature in the inner tank body 100 is precisely controlled. In addition, there is no cross-flow of air with other compartments, thus preventing the odor of items stored in other compartments from contaminating the items stored therein.

[0046] More preferably, the main air duct 17 extends to two side surfaces of the air duct cover plate 1 respectively, and forms a group of main air supply ports 11 on each side surface; air is supplied through the two groups of main air supply ports 11, thereby improving the cooling efficiency.

[0047] The utility model uses a centrifugal fan 2, and a recessed space 4 is formed on the air duct cover plate 1 to place the evaporator 400. The overall thickness is reduced, the occupation of the space of the inner tank body 100 is reduced, and the inner tank body 100 has a larger depth and volume.

[0048] As an embodiment, a main air door 171 is provided at the intersection of the fan chamber and the main air duct 17; the main air door 171 is configured to: control the air volume in the main air duct 17 by controlling the opening of the main air door 171; thereby, the temperature in the room can be accurately controlled. The main air duct 17 is turned on or off by controlling the opening or closing of the main air door 171;

[0049] As an embodiment, the air duct cover plate 1 is provided with a first branch air duct 18 and a second branch air duct 19 connected to the fan cavity; a first branch air door 181 is provided at the intersection of the fan cavity and the first branch air duct 18, and a second branch air door 191 is provided at the intersection of the fan cavity and the second branch air duct 19;

[0050] The first branch damper 181 is configured to control the air volume in the first branch air duct 18 by controlling the opening of the first branch damper 181; the second branch damper 191 is configured to control the air volume in the second branch air duct 19 by controlling the opening of the second branch damper 191;

[0051] The air duct cover plate 1 is provided with a first branch air supply port 15 connected to the first branch air duct 18 and a second branch air supply port 16 connected to the second branch air duct 19;

[0052] The first branch air outlet 15 and the second branch air outlet 16 can supply air to the independent sub-chambers respectively, so as to realize different temperature control of each sub-chamber. For example, the first branch air outlet 15 controls the temperature of the sub-chamber connected to it at 0°C; the second branch air outlet 16 controls the temperature of the sub-chamber connected to it at 5°C; and the two sub-chambers store different items respectively.

[0053] As an implementation mode, the first branch air supply outlet 15 is arranged in the lower middle part of the air duct cover 1, and the second branch air supply outlet 16 is opened near the bottom of the air duct cover 1; thereby, two independent upper and lower chambers can be set up to store different items respectively.

[0054] The base plate 3 covers the back side of the air duct cover plate 1, so that the main air duct 17, the first branch air duct 18 and the second branch air duct 19 form a sealed channel to prevent cold leakage.

[0055] See also Figure 5 The utility model also provides a refrigerated air circulation system, which has the above-mentioned air duct assembly; the air duct cover plate 1 is recessed to form a clearance space 4, and an evaporator is installed in the clearance space 4; the air duct cover plate 1 is also provided with a plurality of return air ports 12 located below the clearance space 4;

[0056] The centrifugal fan 2 of the utility model rotates to send the cold energy generated by the evaporator to the main air duct 17, the first branch air duct 18 or the second branch air duct 19, thereby controlling the temperature of each compartment or sub-chamber in the inner tank. The airflow flows back from the return air port 12 to form a complete air cycle.

[0057] Furthermore, foam is provided in the clearance space 4 to absorb condensed water.

[0058] As an embodiment, a water guide inclined plate 13 is provided below the clearance space 4, and a water guide bottom plate 14 is provided below the water guide inclined plate 13, which is used to collect and discharge the generated condensed water.

[0059] Furthermore, the water guide inclined plates 13 are two pieces and are arranged in a V shape, and the connection position of the two water guide inclined plates 13 forms a water collection nozzle 131 to collect and drip the condensed water.

[0060] See also Fig. 9 As an embodiment, a sealing plate 31 is provided between the air duct cover plate 1 and the base plate 3 of the utility model; the sealing plate 31 is made of a flexible material and is configured to form a surface contact with the air duct cover plate 1 to form a sealing structure;

[0061] The utility model utilizes the characteristics of flexible material that is easy to deform, and fills the tiny gaps when it cooperates with the air duct cover plate 1, thereby reducing the probability of gaps, thereby improving the overall sealing performance of the air duct assembly. In addition, after the base plate 3 is installed, a certain extrusion force is applied to the sealing plate 31, so that its deformation amount is increased, the tiny gaps are filled, and the air duct assembly is fully sealed.

[0062] Preferably, the sealing plate 31 of the present invention is made of foam plastic, silicone or rubber.

[0063] See also Figure 6 The front of the air duct cover plate 1 is provided with a decorative plate 6 to cover the air duct cover plate 1, so that the front looks neat and tidy and improves the aesthetics.

[0064] Furthermore, a decorative light bar 61 is provided on both sides of the air duct cover plate 1, respectively, to illuminate the local areas on both sides of the air duct cover plate 1. Optionally, the decorative light bar 61 can emit single-color or multi-color colored light, which has a good decorative effect and attracts customers to buy.

[0065] Preferably, the decorative light bar 61 of the utility model is a cold light source, which reduces heat and avoids temperature fluctuations in the storage compartment. Preferably, the decorative light bar 61 is an LED light bar, which generates little heat and has low power consumption.

[0066] Better yet, a junction box 5 is further provided at the lower side of the air duct cover plate 1 to facilitate centralized installation of circuits and circuit components.

[0067] Furthermore, a water outlet groove 21 is provided on the side wall of the fan cavity to facilitate the outflow of condensed water in the fan cavity. Optionally, a water outlet groove 21 is provided at the position of the second branch damper 191 to prevent condensed water from accumulating there.

[0068] See also Figure 10-12 As an embodiment, the main air duct 17 of the utility model is also provided with an ion generator 7 to sterilize the airflow entering the storage room. A progress display component 300 is installed on the air duct component 200; the ion generator 34 is connected to the progress display component 300 to display the sterilization progress in real time.

[0069] The progress display assembly of the utility model comprises a panel seat 8, a light guide plate 82 is provided on the front of the panel seat 8; a display film 83 is provided between the panel seat 8 and the light guide plate 82;

[0070] The back of the panel seat 8 is provided with a digital display module 9, see Fig.14The digital display module 9 includes two or three digital bodies, each of which is composed of at least two light-transmitting strips 92 arranged in a predetermined manner; for example, two vertical light-transmitting strips 92 are arranged up and down in a "1" shape, or seven light-transmitting strips 92 are arranged in an "8" shape.

[0071] A display light source is also provided behind the digital display module 9; the display light source is configured to illuminate the digital body of the digital display module 9 in a predetermined order, so that the digital body presents different numbers on the light guide plate 82; the progress can be intuitively read through the numbers displayed on the light guide plate 82. For example, if "30" is displayed, it means that 30% of the progress has been completed; if "50" is displayed, it means that 50% of the progress has been completed; if "100" is displayed, it means that the progress has been completed.

[0072] The ion generator 34 is connected to the control module of the progress display component 300; when the ion generator 34 is started, a signal is sent to the control module, so that the progress display component displays the sterilization progress in real time.

[0073] Optionally, the digital display module 9 also includes a light-transmissive symbol module, which displays specific operations or mathematical symbols on the light guide plate 82 under the illumination of the display light source. For example, "%" is displayed, so that the user can clearly know the real-time progress.

[0074] It also includes a control module connected to the display light source; the control module is configured to control the display light source to emit light in a predetermined order according to the task progress, illuminating the digital body of the digital display module 9;

[0075] As an implementation mode, the control module of the present invention can calculate the percentage value of the running time of the task and the predetermined total task time at a certain moment, and after rounding the value, control the display light source to display the value on the light guide plate 82. The control module can perform calculation and display at predetermined intervals.

[0076] As an implementation mode, the control module of the present invention can also divide the scheduled total duration of the task into 100 equal parts, and then start from "0", and change the number every time a duration is reached, so that the displayed numbers on the light guide plate 82 are displayed in sequence from "0", "1", "2", "3" ... to "100".

[0077] The progress display component of the utility model controls the display light source to illuminate the digital display module 9 in a predetermined order, and displays numbers on the light guide plate 82, so that the user can know the progress status in real time, and realizes the intuitive display of the progress.

[0078] Furthermore, the display light source is an indicator light board 81; a plurality of light source points are arranged on the indicator light board 81; the indicator light board 81 is configured to: according to the signal of the control module, control the light source points of the corresponding area to light up or go out in a predetermined order, illuminate or go out the corresponding light-transmitting strips 92 on the digital body, so that the digital body presents different numbers on the light guide plate 82;

[0079] Preferably, the digital display module 9 is provided with a positioning column 91 for mounting and cooperating with the indicator light board 81 ; the relative positions of the indicator light board 81 and the digital display module 9 are accurately positioned so that the correct numbers are displayed on the light guide plate 82 .

[0080] Optionally, the light guide plate 82 is provided with a light board claw 191 , and the panel seat 8 is correspondingly provided with a light board clamping hole 87 that cooperates with the light board claw 191 , thereby achieving stable installation and convenient disassembly of the light guide plate 82 .

[0081] Furthermore, a plurality of mounting claws 85 are fixedly provided on the panel seat 8 , so as to facilitate the overall installation of the progress display assembly of the utility model onto the air duct cover plate 1 .

[0082] See also Fig.13 As an embodiment, a light bar seat 88 is provided on the back of the panel seat 8, and a glare light bar 881 is installed on the light bar seat 88; a light guide bar 84 located in front of the glare light bar 881 is also installed on the panel seat 8; the glare light bar 881 emits strip light on the light guide bar 84, highlighting the personalized design and attracting users to buy.

[0083] Better yet, the glare light bar 881 is tilted to expand the width of the light on the light guide bar 84 and increase the glare effect.

[0084] Optionally, the light guide bar 84 is provided with a light bar claw 841 , and the panel seat 8 is provided with a strip hole that is shaped like the light guide bar 84 . The light bar claw 841 passes through the strip hole and is clamped on the panel seat 8 , thereby completing the installation and fixation of the light guide bar 84 .

[0085] As an embodiment, a plurality of decorative holes 86 are respectively opened on both sides of the panel seat 8, so as to improve the aesthetic effect of the panel seat 8, and at the same time, the decorative holes 86 can also be ventilated and have a wind supply effect.

[0086] The utility model also provides a multi-system refrigerator, which has a refrigeration area, a freezing area and a variable temperature area; the refrigeration area has the independent air circulation inner tank assembly. The refrigeration area has independent air supply, the refrigeration temperature is controllable, and the air flow with the freezing area is avoided, which causes odor to contaminate the food in the refrigeration area.

[0087] Preferably, the freezing zone and the temperature-changing zone of the utility model also respectively adopt independent air circulation systems, and the temperature of each zone is controllable.

[0088] In summary, the utility model provides an independent air circulation inner tank assembly, which realizes independent air circulation by supplying air to the inner tank body with an independent evaporator air duct component. The temperature in the inner tank body is precisely controlled. And there is no cross-wind with other compartments, avoiding the odor of items stored in other compartments and contaminating the items stored therein. The utility model provides a multi-system refrigerator, each zone adopts an independent air circulation system, the temperature is precisely controllable, and cross-wind is avoided.

[0089] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An independent air circulation liner assembly, characterized in that: It comprises an inner liner body, wherein the inner liner body is provided with an air duct component close to the inner side surface of the back thereof; The air duct assembly includes an air duct cover plate and a base plate covering the back of the air duct cover plate; a recessed space is formed on the air duct cover plate, and an evaporator is installed in the space; the air duct cover plate is also provided with a plurality of return air ports located below the space; The air duct cover plate is provided with a fan cavity, in which a centrifugal fan is installed; the air duct cover plate is also provided with a main air duct connected to the fan cavity; the main air duct extends to the side position of the air duct cover plate to form a main air supply port.

2. The independent air circulation liner assembly according to claim 1, characterized in that: The main air duct extends to two side surfaces of the air duct cover plate respectively, and a group of main air supply ports is formed on each side surface.

3. The independent air circulation liner assembly according to claim 1, characterized in that: A main air door is provided at the intersection of the fan chamber and the main air duct; the main air door is configured to: control the air volume in the main air duct by controlling the opening of the main air door; control the main air duct to be turned on or off by controlling the opening or closing of the main air door; The air duct cover plate is provided with a first branch air duct and a second branch air duct connected to the fan cavity; a first branch air door is provided at the intersection of the fan cavity and the first branch air duct, and a second branch air door is provided at the intersection of the fan cavity and the second branch air duct; The first branch damper is configured to control the air volume in the first branch air duct by controlling the opening of the first branch damper; the second branch damper is configured to control the air volume in the second branch air duct by controlling the opening of the second branch damper; The air duct cover plate is provided with a first branch air supply port connected to the first branch air duct and a second branch air supply port connected to the second branch air duct.

4. The independent air circulation liner assembly according to claim 1, characterized in that: A sealing plate is provided between the air duct cover plate and the base plate; the sealing plate is made of a flexible material and is configured to form a surface contact with the air duct cover plate to form a sealing structure.

5. The independent air circulation liner assembly according to claim 1, characterized in that: A decorative plate is arranged on the front of the air duct cover plate; and a decorative light strip is arranged on both sides of the air duct cover plate.

6. The independent air circulation liner assembly according to claim 1, characterized in that: A water guide inclined plate is arranged below the make way space, and a water guide bottom plate is arranged below the water guide inclined plate.

7. The independent air circulation liner assembly according to claim 6, characterized in that: The water guide inclined plates are two in number and are arranged in a V shape, and the connection position of the two water guide inclined plates forms a water collection nozzle.

8. The independent air circulation liner assembly according to claim 1, characterized in that: An ion generator is also arranged in the main air duct; a progress display component is installed on the air duct component; and the ion generator is connected to the progress display component.

9. The independent air circulation liner assembly according to claim 8, characterized in that: The progress display assembly comprises a panel seat, a light guide plate is provided on the front of the panel seat; a display film is provided between the panel seat and the light guide plate; A digital display module is provided on the back of the panel seat, and the digital display module includes two or three digital bodies, each of which is composed of at least two light-transmitting strips arranged in a predetermined manner; A display light source is also provided on the rear side of the digital display module; the display light source is configured to: illuminate the digital bodies of the digital display module in a predetermined order, so that the digital bodies present different numbers on the light guide plate; It also includes a control module connected to the display light source; the control module is configured to control the display light source to emit light in a predetermined order according to the task progress, so as to illuminate the digital body of the digital display module; The display light source is an indicator light board; a plurality of light source points are arranged on the indicator light board; the indicator light board is configured to: according to the signal of the control module, control the light source points in the corresponding area to light up or go out in a predetermined order, illuminate or go out the corresponding light-transmitting strips on the digital body, so that the digital body presents different numbers on the light guide plate.

10. A multi-system refrigerator having a refrigeration zone, a freezing zone and a temperature-changing zone, characterized in that: The refrigeration area has an independent air circulation liner assembly as described in any one of claims 1 to 9.

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