Refrigeration equipment

Abstract

The utility model provides a refrigeration device which comprises an inner container, an outer container and a refrigeration device, the inner container comprises at least three storage rooms arranged in the vertical direction, each storage room comprises an opening facing the horizontal direction, the openings of the storage rooms are consistent, and the inner container comprises an inner container rear wall opposite to the openings; the air duct assembly is arranged on the side, away from the opening, of the rear portion of the inner container, the air duct assembly comprises a fan containing cavity and at least three air supply channels, the fan containing cavity is located below the rear wall of the inner container, and the air supply channels communicate with the fan containing cavity and the different storage rooms; the at least two air supply channels are located on the two sides of the central axis, in the vertical direction, of the draught fan containing cavity. The three air supply channels communicated with the three storage chambers are reasonably distributed on the two sides of the vertical central axis of the draught fan, the space utilization rate of air channel layout is optimized, and the thickness of a heat preservation layer of each air supply channel is ensured. By means of the design, the temperature cold conduction phenomenon caused by uneven thickness of the heat preservation layer is reduced, and therefore the stability and the refrigeration quality of the refrigeration equipment are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration, in particular to a refrigeration equipment. BACKGROUND

[0002] In the prior art, an ice bar usually adopts a three-temperature-zone design with adjustable wine storage, refrigeration and freezing, and the layout of the air duct assembly has certain limitations. Specifically, the air duct assembly is arranged on one side of the vertical central axis of the fan, and the three air supply channels are arranged on the other side of the vertical central axis of the fan. This design greatly limits the spatial layout of the air duct assembly, resulting in insufficient structural compactness and difficulty in optimizing the space utilization rate. In addition, the air duct heat preservation part is recessed inward on one side close to the air duct cover to form a containing cavity for accommodating the fan, and three notches are formed in the edge of the containing cavity along the circumference of the fan to respectively abut the air outlets. However, the prior art usually only provides one air outlet abutment design for each independent chamber, without fully considering the volume difference of different chambers and the uniformity of temperature distribution. In actual application, this design may cause inconsistent temperatures at different spatial positions in the same chamber, affecting the freshness preservation effect of stored items. CONTENT OF THE UTILITY MODEL

[0003] In order to at least overcome the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a refrigeration equipment, comprising:

[0004] a liner, the liner comprising at least three storage chambers arranged in the vertical direction, the storage chambers comprising openings facing the horizontal direction and the openings of the storage chambers being consistent, and the liner comprising a liner back wall opposite to the openings;

[0005] an air duct assembly, the air duct assembly being arranged on the side of the liner away from the openings, the air duct assembly comprising a fan containing cavity and at least three air supply channels, the fan containing cavity being located below the liner back wall, and the air supply channels being respectively connected to the fan containing cavity and different storage chambers;

[0006] wherein at least two air supply channels are located on both sides of the vertical central axis of the fan containing cavity.

[0007] In one possible implementation, the storage chambers are sequentially arranged from top to bottom as a first storage chamber, a second storage chamber and a third storage chamber, corresponding to a first air supply channel, a second air supply channel and a third air supply channel respectively, the first air supply channel and the second air supply channel extending downward along the liner back wall and being located on both sides of the vertical central axis of the fan containing cavity.

[0008] In one possible implementation, the third air supply channel is located on the side of the second air supply channel away from the first air supply channel.

[0009] In a possible implementation, the air duct assembly further comprises a fan and an air duct insulation, the fan accommodating cavity is located at one side of the air duct insulation close to the rear wall of the inner container;

[0010] The edge of the fan accommodating cavity is provided with three notches along the circumference of the fan, a first notch, a second notch and a third notch corresponding to the first storage compartment, the second storage compartment and the third storage compartment, the first notch and the second notch are arranged on the upper side of the horizontal central axis of the fan, and the third notch is arranged on the lower side of the horizontal central axis of the fan.

[0011] In a possible implementation, the air duct assembly further comprises a first return air passage, the first air supply passage is arranged from the first notch to the top end of the air duct insulation from bottom to top, wherein the first air supply passage has a first air outlet and a second air outlet for supplying air to the first storage compartment, and the first air outlet and the second air outlet are located at the top end of the air duct insulation.

[0012] The air duct insulation has a first side wall and an opposite second side wall, and the first return air outlet of the first return air passage is located on the first side wall of the air duct insulation and close to the bottom of the first storage compartment.

[0013] In a possible implementation, the air duct assembly further comprises a second return air passage, the second air supply passage is arranged from the second notch to the middle part of the air duct insulation from bottom to top, wherein the second air supply passage has a third air outlet and a fourth air outlet for supplying air to the second storage compartment, the third air outlet and the fourth air outlet are located on the second side wall of the air duct insulation, the second return air outlet of the second return air passage is located close to the first side wall of the air duct insulation and close to the bottom of the second storage compartment.

[0014] In a possible implementation, the air duct assembly further comprises a third return air passage, the third air supply passage is arranged from the third notch to the second side wall of the air duct insulation, wherein the third air supply passage has a fifth air outlet and a sixth air outlet for supplying air to the third storage compartment, the fifth air outlet and the sixth air outlet are located close to the second side wall of the air duct insulation, and the third return air outlet and the fourth return air outlet of the third return air passage are arranged at the bottom of the air duct insulation.

[0015] In a possible implementation, a first damper is arranged between the first air supply channel and the first gap for controlling opening and closing of the first air supply channel; a second damper is arranged between the second air supply channel and the second gap for controlling opening and closing of the second air supply channel; and a third damper is arranged between the third air supply channel and the third gap for controlling opening and closing of the third air supply channel.

[0016] In a possible implementation, the air duct assembly further comprises an air duct plate arranged on a side of the air duct heat preservation member away from the rear wall of the inner container.

[0017] The refrigeration device further comprises a heating assembly, wherein the heating assembly comprises a first heater and a second heater arranged between the air duct plate and the air duct heat preservation member, and close to the first storage compartment and the second storage compartment, respectively.

[0018] The lower wall of the inner container further comprises a third heater, and the lower end opening of the inner container further comprises a fourth heater.

[0019] In a possible implementation, a first heating wire is arranged on a side of a partition plate between the second storage compartment and the third storage compartment close to the second storage compartment, and a second heating wire is arranged on a side of the partition plate close to the opening of the inner container.

[0020] Compared with the prior art, the application has the following beneficial effects:

[0021] The application provides a refrigeration device, wherein three air supply channels respectively connected to three storage compartments are reasonably distributed on both sides of the vertical central axis of the air fan, which not only optimizes the space utilization of the air duct layout, but also ensures the uniform thickness of the heat preservation layer on each air supply channel. This design effectively avoids the temperature conduction phenomenon caused by the uneven thickness of the heat preservation layer, thereby improving the stability and refrigeration quality of the refrigeration device, and also helps to maintain the uniformity and consistency of the temperature in each storage compartment, further enhancing the overall performance and use effect of the refrigeration device. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings required to be called in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 The front view of the refrigeration device provided in the embodiment is shown in the figure.

[0024] Figure 2A structural schematic view of the air duct assembly provided in the embodiment;

[0025] Figure 3 An exploded structural schematic view of the air duct assembly provided in the embodiment.

[0026] Figures: Refrigeration equipment-10; inner container-101; rear wall of the inner container-102; fan accommodating cavity-103; air duct heat preservation member-104; air duct plate-105; central axis of the fan accommodating cavity in the vertical direction-A; first storage room-110; second storage room-120; third storage room-130; first air supply channel-111; first air return channel-112; first air outlet-113; second air outlet-114; first side wall-1041; second side wall-1042; first air return opening-115; first air door-116; first heater-117; second air supply channel-121; second air return channel-122; third air outlet-123; fourth air outlet-124; second air return opening-125; second air door-126; second heater-127; first heating wire-128; second heating wire-129; third air supply channel-131; third air return channel-132; fifth air outlet-133; sixth air outlet-134; third air return opening-135; third air door-136; third heater-137; fourth heater-138; first notch-141; second notch-142; third notch-143; partition assembly-151; partition-152. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0029] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical", "overhanging", and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] It should be noted that the different features in the embodiments of the present application can be combined with each other without conflict.

[0034] The inventor found that in the prior art, the cabinet of the refrigeration equipment 10 is divided into three different closed storage spaces, and the layout of the air duct assembly has certain limitations. Specifically, the air duct assembly is arranged at least partially on one side of the vertical central axis of the fan, and the three air supply channels are arranged on the other side of the vertical central axis of the fan. This design greatly limits the spatial layout of the air duct assembly, resulting in insufficient structural compactness and difficulty in optimizing space utilization. The arrangement of the three air supply channels on one side of the vertical central axis of the fan also causes the thickness of the heat preservation layer of the air supply channel to be uneven.

[0035] Therefore, with reference to Figure 1 , the present application provides a refrigeration equipment 10 comprising the following structure.

[0036] The inner container 101 comprises at least three storage compartments arranged in the vertical direction, the storage compartments comprise openings facing the horizontal direction, and the openings of the storage tanks are consistent, and the inner container 101 comprises an inner container rear wall 102 opposite to each opening.

[0037] The air duct assembly is arranged on the rear side of the inner container 101 away from the opening, and comprises a fan accommodating cavity 103 and at least three air supply channels. Figure 2 The fan accommodating cavity 103 is located below the rear wall 102 of the inner container, and the air supply channels are respectively connected to the fan accommodating cavity 103 and different storage rooms.

[0038] In this embodiment, by arranging at least two air supply channels on both sides of the vertical central axis A of the fan accommodating cavity, the three air supply channels connected to the three storage rooms are reasonably distributed, and the space utilization of the air duct layout is optimized.

[0039] On the basis of uniform distribution of the three air ducts, the thickness of the heat preservation layer of each air supply channel is ensured, thereby reducing the temperature conduction phenomenon caused by uneven thickness of the heat preservation layer, and improving the stability and refrigeration quality of the refrigeration equipment 10.

[0040] In one possible implementation, referring to Figure 2 The storage rooms are sequentially arranged from top to bottom as a first storage room 110, a second storage room 120, and a third storage room 130, corresponding to a first air supply channel 111, a second air supply channel 121, and a third air supply channel 131, respectively.

[0041] Specifically, the first storage room 110 is a wine storage room, the second storage room 120 is a refrigeration room, and the third storage room 130 is a freezing room. The first storage room 110 and the second storage room 120 are separated by a partition assembly 151, and the second storage room 120 and the third storage room 130 are separated by a partition plate 152.

[0042] In this embodiment, the refrigeration equipment 10 has longer first and second air supply channels 111 and 121 extending from top to bottom along the rear wall 102 of the inner container.

[0043] Further, referring to Figure 2 The third air supply channel 131 is located on the side of the second air supply channel 121 away from the first air supply channel 111.

[0044] In the embodiment, the third air supply channel 131 is directly communicated with the third storage compartment 130, and the length of the third air supply channel 131 is shorter than the first air supply channel 111 and the second air supply channel 121 due to the position of the fan being closer to the third storage compartment 130. Therefore, the third air supply channel 131 is arranged on the side of the second air supply channel 121 away from the first air supply channel 111. Such a layout realizes the uniform distribution of the first air supply channel 111, the second air supply channel 121 and the third air supply channel 131, and also ensures the uniformity of the thickness of the heat preservation layer of each air supply channel, thereby effectively avoiding the temperature conduction problem caused by the length difference of the air ducts or the non-uniformity of the thickness of the heat preservation layer, and further improving the stability and refrigeration effect of the refrigeration system.

[0045] In a possible implementation, referring to Figure 3 , the air duct assembly further comprises a fan and an air duct heat preservation piece 104, and the fan containing cavity 103 is located on the side of the air duct heat preservation piece 104 close to the rear wall 102 of the inner container.

[0046] Referring to Figure 2 , three notches are formed on the edge of the fan containing cavity 103 along the circumference of the fan, i.e., a first notch 141, a second notch 142 and a third notch 143 corresponding to the first storage compartment 110, the second storage compartment 120 and the third storage compartment 130, respectively. The first notch 141 and the second notch 142 are arranged on the upper side of the horizontal central axis of the fan, and the third notch 143 is arranged on the lower side of the horizontal central axis of the fan.

[0047] In the embodiment, by forming three notches on the edge of the fan containing cavity 103 along the circumference of the fan, connecting the first air supply channel 111, the second air supply channel 121 and the third air supply channel 131, respectively, and arranging the first notch 141 and the second notch 142 on the upper side of the horizontal central axis of the fan and the third notch 143 on the lower side of the horizontal central axis of the fan, the three air supply channels can be uniformly distributed, the space configuration of the air duct is effectively optimized, the cold air is more uniformly delivered to each storage compartment, and the accuracy and consistency of temperature control are improved; at the same time, the mutual interference between the air ducts is reduced, the cold energy loss is reduced, and the refrigeration efficiency is improved.

[0048] In a possible implementation, referring to Figure 2 , the first air supply channel 111 and the first notch 141 have a first air door 116 for controlling the opening and closing of the first air supply channel 111; the second air supply channel 121 and the second notch 142 have a second air door 126 for controlling the opening and closing of the second air supply channel 121; and the third air supply channel 131 and the third notch 143 have a third air door 136 for controlling the opening and closing of the third air supply channel 131.

[0049] In the present embodiment, through the independent opening and closing operations of the first damper 116, the second damper 126 and the third damper 136, the refrigeration equipment 10 can realize accurate adjustment of the air supply amount of the first storage room 110, the second storage room 120 and the third storage room 130. Each damper independently controls the delivery amount of cold air according to the temperature requirement of the corresponding storage room, ensuring that the temperatures of the first storage room 110, the second storage room 120 and the third storage room 130 can be individually and accurately regulated. For example, when the first storage room 110 needs to be rapidly cooled, the first damper 116 can be fully opened to increase the air supply amount; and if the second storage room 120 needs to maintain the current temperature, the second damper 126 can be partially closed to reduce the cold air input. This independent control mechanism meets the needs of different storage rooms and also avoids unnecessary waste of cold energy, thereby optimizing the refrigeration efficiency of the refrigeration equipment 10.

[0050] In a possible implementation, please refer to Figure 2 , the air duct assembly further comprises a first return air passage 112, and the first air supply passage 111 is arranged from the first gap 141 upward to the top end of the air duct heat preservation member 104, wherein the first air supply passage 111 has a first air outlet 113 and a second air outlet 114 for supplying air to the first storage room 110, and the first air outlet 113 and the second air outlet 114 are located at the top end of the air duct heat preservation member 104; the air duct heat preservation member 104 has a first side wall 1041 and an opposite second side wall 1042, and a first return air outlet 115 of the first return air passage 112 is located on the first side wall 1041 of the air duct heat preservation member 104 and is close to the bottom of the first storage room 110.

[0051] In the present embodiment, the first air supply passage 111 has the first air outlet 113 and the second air outlet 114 at the top end, which are responsible for supplying cold air or hot air from the fan into the first storage room 110. The first return air outlet 115 of the first return air passage 112 is located on the first side wall 1041 of the air duct heat preservation member 104 and is close to the bottom of the first storage room 110. The first return air outlet 115 is used to draw the air in the first storage room 110 back into the circulation system for temperature adjustment. After the air flows in the first storage room 110, the temperature gradually changes, and finally returns to the first return air passage 112 through the first return air outlet 115 and enters the first air supply passage 111 again for adjustment. Through the cooperation of the fan, the first air supply passage 111 and the first return air passage 112, the temperature in the first storage room 110 is ensured to be uniform and stable, and finally reaches a suitable temperature.

[0052] By setting two air outlets in the first storage room 110, uniform distribution and efficient circulation of air are achieved, ensuring uniform temperature drop and effectively avoiding overcooling or overheating in local areas due to uneven air supply. At the same time, the configuration of the double air outlets can also accelerate the cooling speed and reduce energy consumption, further optimizing the operating efficiency of the refrigeration equipment 10 system.

[0053] In a possible implementation, referring to Figure 2 , the air duct assembly further includes a second return air passage 122, and the second supply air passage 121 extends from the second gap 142 upward to the middle portion of the air duct insulation 104, wherein the second supply air passage 121 has a third air outlet 123 and a fourth air outlet 124 for supplying air to the second storage room 120, the third air outlet 123 and the fourth air outlet 124 are located on the second side wall 1042 of the air duct insulation 104, and the second return air outlet 125 of the second return air passage 122 is located close to the first side wall 1041 of the air duct insulation 104 and close to the bottom of the second storage room 120.

[0054] In this embodiment, by setting the third air outlet 123 and the fourth air outlet 124 in the second storage room 120, uniform temperature drop is ensured, and overcooling or overheating phenomenon is effectively avoided. The temperature regulation mode of the second storage room 120 is described above with reference to the temperature regulation mode of the first storage room 110.

[0055] In a possible implementation, referring to Figure 2 , the air duct assembly further includes a third return air passage 132, and the third supply air passage 131 extends from the third gap 143 to the second side wall 1042 of the air duct insulation 104, wherein the third supply air passage 131 has a fifth air outlet 133 and a sixth air outlet 134 for supplying air to the third storage room 130, the fifth air outlet 133 and the sixth air outlet 134 are located close to the second side wall 1042 of the air duct insulation 104, and the third return air outlet 135(a) and the fourth return air outlet 135(b) of the third return air passage 132 are arranged at the bottom of the air duct insulation 104.

[0056] In this embodiment, by setting the fifth air outlet 133 and the sixth air outlet 134 in the third storage room 130, uniform temperature drop is ensured, and overcooling or overheating phenomenon is effectively avoided. The temperature regulation mode of the third storage room 130 is described above with reference to the temperature regulation mode of the first storage room 110.

[0057] In the embodiment, two return air inlets 135(a) and 135(b) are arranged to more evenly recover air and avoid local airflow dead angle caused by single return air inlet, thereby improving overall air circulation efficiency and making air distribution in the third storage compartment 130 more balanced. Through the two return air inlets, the refrigeration system of the refrigeration equipment 10 can more accurately perceive the temperature distribution in the third storage compartment 130, thereby more accurately adjusting the supply air temperature and avoiding overcooling or overheating in local areas.

[0058] In a possible implementation, referring to Figure 3 , the air duct assembly further comprises an air duct plate 106 arranged on the side of the air duct heat preservation member 104 away from the rear wall 102 of the inner container; and the refrigeration equipment 10 further comprises a heating assembly, wherein the heating assembly comprises a first heater 117 and a second heater 127 located between the air duct plate 106 and the air duct heat preservation member 104 and respectively close to the first storage compartment 110 and the second storage compartment 120; and the lower wall of the inner container 101 further has a third heater 137 and a fourth heater 138 along the opening of the lower end of the inner container 101.

[0059] In the embodiment, the heating assemblies arranged in appropriate positions in the three storage compartments can quickly respond to temperature changes, achieve uniform heating, avoid local overcooling or overheating, and ensure the temperature control accuracy of each storage compartment.

[0060] In a possible implementation, referring to Figure 3 , the side of the partition plate 152 between the second storage compartment 120 and the third storage compartment 130 close to the second storage compartment 120 has a first heating wire 128, and the side of the partition plate 152 close to the opening of the inner container 101 has a second heating wire 129.

[0061] In the embodiment, the second heater 127 and the first heating wire 128 arranged on the partition plate 152 jointly act to ensure uniform temperature drop of the second storage compartment 120 and avoid overcooling or overheating.

[0062] The design of the fourth heater 138 and the second heating wire 129 on the front surface of the partition plate reduces the transfer of cold energy between the door gap strip of the third storage compartment 130 and the container opening of the inner container 101, thereby reducing the energy loss caused by temperature difference. Through the heat compensation effect of the heating assembly, the temperature difference between the door gap strip and the container opening of the inner container 101 is balanced, cold energy leakage and heat invasion are avoided, and the heat preservation performance of the third storage compartment 130 is further improved; at the same time, the temperature of the door gap strip and the container opening of the inner container 101 always remains above the dew point due to the presence of the heating assembly, thereby avoiding water vapor condensation and effectively preventing the occurrence of condensation in the third storage compartment 130.

[0063] Optionally, the temperature regulation range of the first storage compartment 110 is 5-18℃, the temperature regulation range of the second storage compartment 120 is 2-8℃, and the temperature regulation range of the third storage compartment 130 is -20-5℃.

[0064] In summary, the present application provides a refrigeration equipment 10, comprising: an inner container 101, the inner container 101 comprising at least three storage compartments arranged in the vertical direction, the storage compartments comprising openings towards the horizontal direction and the openings of the respective storage compartments being consistent, and the inner container 101 comprising a rear wall 102 opposite to the openings; an air duct assembly arranged at a side of the inner container 101 far away from the openings, the air duct assembly comprising a fan accommodating cavity 103 and at least three air supply channels, the fan accommodating cavity 103 being located below the rear wall 102 of the inner container, and the air supply channels being respectively connected to the fan accommodating cavity 103 and different storage compartments; wherein, at least two air supply channels are located on both sides of a vertical central axis A of the fan accommodating cavity. By reasonably distributing the three air supply channels respectively connected to the three storage compartments on both sides of the vertical central axis of the fan, the space utilization of the air duct layout is optimized, and the thickness of the heat preservation layer of each air supply channel is ensured. This design reduces the temperature conduction phenomenon caused by uneven thickness of the heat preservation layer, thereby improving the stability and refrigeration quality of the refrigeration equipment 10.

[0065] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0066] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A refrigeration device, characterized in that, include: The inner liner includes at least three storage compartments arranged vertically, each storage compartment having an opening facing horizontally and the openings of each storage compartment being identical, and the inner liner including a rear wall opposite to each of the openings. Air duct assembly; the air duct assembly is disposed on the side of the inner liner away from the opening, the air duct assembly includes a fan receiving cavity and at least three air supply channels, the fan receiving cavity is located below the rear wall of the inner liner, and the air supply channels are respectively connected to the fan receiving cavity and different storage compartments; At least two of the air supply channels are located on either side of the vertical central axis of the fan housing cavity.

2. The refrigeration equipment according to claim 1, characterized in that, The storage rooms are arranged from top to bottom as a first storage room, a second storage room, and a third storage room, corresponding to the first air supply channel, the second air supply channel, and the third air supply channel, respectively. The first air supply channel and the second air supply channel extend from top to bottom along the rear wall of the inner liner and are located on both sides of the central axis of the fan receiving cavity in the vertical direction.

3. The refrigeration equipment according to claim 2, characterized in that, The third air supply channel is located on the side of the second air supply channel away from the first air supply channel.

4. The refrigeration equipment according to claim 3, characterized in that, The air duct assembly also includes a fan and an air duct insulation component, wherein the fan receiving cavity is located on the side of the air duct insulation component near the rear wall of the inner liner; The edge of the fan housing cavity has three notches along the circumference of the fan, namely the first notch, the second notch, and the third notch, which correspond to the first storage room, the second storage room, and the third storage room. The first notch and the second notch are located on the upper side of the horizontal central axis of the fan, and the third notch is located on the lower side of the horizontal central axis of the fan.

5. The refrigeration equipment according to claim 4, characterized in that, The air duct assembly further includes a first return air duct, which extends from the first notch upwards to the top of the air duct insulation component. The first air duct has a first air outlet and a second air outlet for supplying air to the first storage room, and the first air outlet and the second air outlet are located at the top of the air duct insulation component. The air duct insulation component has a first sidewall and an opposite second sidewall, and the first return air inlet of the first return air channel is located on the first sidewall of the air duct insulation component and close to the bottom of the first storage room.

6. The refrigeration equipment according to claim 5, characterized in that, The air duct assembly further includes a second return air duct, which extends from the second notch upwards to the middle portion of the air duct insulation component. The second air supply duct has a third air outlet and a fourth air outlet for supplying air to the second storage room. The third air outlet and the fourth air outlet are located on the second side wall of the air duct insulation component. The second return air outlet of the second return air duct is located near the first side wall of the air duct insulation component and near the bottom of the second storage room.

7. The refrigeration equipment according to claim 6, characterized in that, The air duct assembly further includes a third return air duct. The third air supply duct extends from the third notch toward the second side wall of the air duct insulation component. The third air supply duct has a fifth air outlet and a sixth air outlet for supplying air to the third storage room. The fifth air outlet and the sixth air outlet are located near the second side wall of the air duct insulation component. The third return air outlet and the fourth return air outlet of the third return air duct are located at the bottom of the air duct insulation component.

8. The refrigeration equipment according to claim 7, characterized in that, A first damper for controlling the opening and closing of the first air supply channel is provided between the first air supply channel and the first gap; a second damper for controlling the opening and closing of the second air supply channel is provided between the second air supply channel and the second gap; and a third damper for controlling the opening and closing of the third air supply channel is provided between the third air supply channel and the third gap.

9. The refrigeration equipment according to claim 4, characterized in that, The air duct assembly also includes an air duct plate disposed on the side of the air duct insulation component facing away from the rear wall of the inner liner; The refrigeration equipment further includes a heating component, wherein the heating component includes a first heater and a second heater located between the air duct plate and the air duct insulation component, respectively close to the first storage room and the second storage room; The lower wall of the inner liner also has a third heater, and the lower end opening of the inner liner also has a fourth heater.

10. The refrigeration equipment according to claim 9, characterized in that, The partition between the second storage compartment and the third storage compartment has a first heating wire on the side near the second storage compartment, and a second heating wire on the side of the partition near the opening of the inner liner.

Images