Horizontal refrigerator

Abstract

The horizontal refrigerator comprises an inner container and an evaporator bulkhead, a containing cavity is defined by the inner container, and the inner container comprises a step part located at the bottom of the end, in the first direction, of the containing cavity and two first side walls parallel to the first direction; the evaporator cabin wall is arranged in the accommodating chamber and divides the accommodating chamber into a refrigeration chamber and an evaporator cabin; the evaporator bulkhead comprises an air return channel and an air return cover plate, the air return channel is used for air return, and the air return cover plate covers the air return channel; the air return cover plate comprises a plurality of thin and long narrow plates which are sequentially arranged in the second direction. In every two adjacent narrow plates, one narrow plate is close to the evaporator cabin, and the other narrow plate is close to the refrigeration chamber, so that the air return cover plate is of a double-layer structure; wherein the second direction is horizontally perpendicular to the first direction. According to the horizontal refrigerator, the air return cover plate is arranged to be of a double-layer structure, so that the air return cover plate is not easily blocked by objects and cannot return air.

Description

Technical Field

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

[0002] In current air-cooled horizontal freezers, the return air vent is far from the evaporator, resulting in a long return air distance and significant airflow loss during the return process. This hinders heat exchange between the hot air in the refrigeration compartment and the evaporator, affecting temperature control within the refrigeration compartment. Some horizontal freezers place the return air vent on the evaporator compartment cover, but since items are also placed on the evaporator compartment, these items can easily block the return air vent, preventing airflow from returning. Summary of the Invention

[0003] The purpose of this application is to provide a horizontal freezer with a return air duct located on the evaporator compartment cover. The return air cover includes staggered narrow plates, forming a double-layer structure, which solves the problem of easy blockage of the return air vent in the prior art.

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

[0005] The inner liner surrounds a receiving chamber. The inner liner includes a stepped portion and two first side walls. The stepped portion is located at the bottom of one end of the receiving chamber in a first direction. The two first side walls are parallel to the first direction.

[0006] An evaporator compartment wall is disposed in a receiving chamber and divides the receiving chamber into a refrigeration chamber and an evaporator compartment; the evaporator compartment wall includes a return air duct and a return air cover plate, the return air duct is used for return air, and the return air cover plate covers the return air duct; the return air cover plate includes a plurality of slender narrow plates, the narrow plates being arranged sequentially along a second direction; in two adjacent narrow plates, one is closer to the evaporator compartment and the other is closer to the refrigeration chamber, so that the return air cover plate forms a double-layer structure;

[0007] The second direction is horizontal and perpendicular to the first direction.

[0008] In one embodiment of this application, the evaporator compartment and the stepped portion are arranged adjacent to each other; a plurality of air guide vanes are connected between two adjacent narrow plates, and the air guide vanes extend obliquely from top to bottom toward the side where the stepped portion is arranged.

[0009] In one embodiment of this application, the evaporator chamber wall includes a first chamber cover plate and a second chamber cover plate spaced apart along a second direction, and a first heat insulation plate and a second heat insulation plate disposed on the side of the first chamber cover plate and the second chamber cover plate near the evaporator chamber, wherein the first heat insulation plate and the second heat insulation plate are spaced apart along the second direction.

[0010] The first heat insulation plate protrudes into the first compartment cover plate on one side of the second heat insulation plate, the second heat insulation plate protrudes into the second compartment cover plate on one side of the first heat insulation plate, and a return air vent is defined between the first heat insulation plate and the second heat insulation plate.

[0011] In one embodiment of this application, the first heat insulation plate and / or the second heat insulation plate are provided with air guide grooves, which extend toward the return air inlet.

[0012] In one embodiment of this application, the evaporator compartment is adjacent to and at the same height as the step portion, the evaporator compartment wall is L-shaped, and together with the two first side walls and the step portion, forms the aforementioned evaporator compartment.

[0013] In one embodiment of this application, the inner liner further includes a support frame, which includes a bottom support plate and a side plate. The bottom support plate is hollow, and the side plate is connected to the bottom support plate. The bottom support plate is located at the bottom of the evaporator compartment, and the side plate is located on the side of the evaporator compartment near the step.

[0014] In one embodiment of this application, the inner liner further includes a bottom plate disposed on the side of the evaporator compartment away from the stepped portion; one end of the support frame is connected to the bottom plate, and the other end is connected to the top of the stepped portion; the evaporator compartment wall is disposed on the support frame.

[0015] In one embodiment of this application, a water receiving tray is also included, which is fixed to a hollow bottom support plate.

[0016] In one embodiment of this application, in the second direction, the water receiving tray includes a guide portion located in the middle, and the water receiving tray extends obliquely downward from the guide portions at both ends.

[0017] In one embodiment of this application, the guide portion extends obliquely downward in the direction from the evaporator chamber toward the step portion.

[0018] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0019] In the horizontal freezer provided in this application, the evaporator compartment is formed by the evaporator wall, and the return air duct is set on the evaporator compartment wall. The air in the refrigeration room flows through the return air duct and directly enters the evaporator compartment for heat exchange, which greatly reduces the return air distance and minimizes airflow loss. A return air cover is installed at the return air duct. The return air cover includes staggered narrow plates, forming a double-layer structure. When items are placed on the return air cover, the air in the refrigeration room can return between the two spaced-apart narrow plates, and the return air duct is not easily blocked. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of the horizontal freezer in the embodiments of this application.

[0021] Figure 2 yes Figure 1 A top view of a horizontal freezer.

[0022] Figure 3 yes Figure 2 A cross-sectional view along line AA.

[0023] Figure 4 This is a structural schematic diagram of the return air cover of the horizontal freezer in this application.

[0024] Figure 5 yes Figure 4 Side view of the return air cover.

[0025] Figure 6 yes Figure 3 A schematic diagram of the structure of the central water receiving tray.

[0026] Figure 7 yes Figure 2 Schematic diagram of cross section along line BB.

[0027] Figure 8 This is an exploded view of the inner liner.

[0028] 1. Inner liner; 10. Refrigeration compartment; 11. Step section; 12. First side wall; 13. Second side wall; 14. Floor plate; 15. Large enclosure panel; 16. Small enclosure panel; 17. Small floor plate;

[0029] 2. Evaporator compartment wall; 20. Evaporator compartment; 21. First compartment cover; 22. First heat insulation plate; 221. Air guide duct; 23. Return air cover; 231. Narrow plate; 2311. Inner narrow plate; 2312. Outer narrow plate; 232. Air guide vane; 24. Return air outlet;

[0030] 3. Support frame; 31. Bottom support plate; 32. Side plate; 33. First connecting part; 331. First mounting slot; 34. Second connecting part; 341. Second mounting slot;

[0031] 4. Water receiving tray; 41. First receiving section; 42. Second receiving section; 43. Flow guiding section;

[0032] 51. Upper air duct; 511. Upper air duct shell; 5111. First upper slot; 5112. First lower slot; 5113. Fixing slot; 512. Upper air duct cover; 5121. Upper flange; 5122. Lower flange; 52. Lower air duct; 521. Lower air duct cover; 522. Upper reinforcing strip; 5221. Second upper slot; 523. Lower reinforcing strip; 5231. Second lower slot; 53. Vertical air duct; 531. Vertical air duct shell; 533. Side air outlet. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] The terms used in this document, such as “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” indicating spatial relative positions, are used 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 positions” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0035] For example, if the device in the figure is flipped, a unit described as being "below" or "under" other units or features will be "above" other units or features. Therefore, the exemplary term "below" can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or otherwise) and the spatially related descriptive terms used herein will be interpreted accordingly.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Furthermore, it should be understood that although the terms "first," "second," etc., may be used herein to describe various elements or structures, the objects being described should not be limited by these terms. These terms are only used to distinguish these objects from one another. For example, a first sidewall may be referred to as a second sidewall, and similarly, a second sidewall may be referred to as a first sidewall, without departing from the scope of protection of this application.

[0038] This application provides a horizontal freezer, such as... Figures 1-5 As shown, it includes an inner liner 1 and an evaporator chamber wall 2. The inner liner 1 encloses a receiving chamber and includes a stepped portion 11 and two first side walls 12.

[0039] The stepped portion 11 is located at the bottom of one end of the receiving chamber in the first direction, and the two first sidewalls 12 are parallel to the first direction and are arranged opposite to each other.

[0040] The evaporator compartment wall 2 is located in the housing compartment and divides the housing compartment into a refrigeration compartment 10 and an evaporator compartment 20.

[0041] The evaporator chamber wall 2 includes a return air duct and a return air cover 23. The return air duct is used for return air, and the return air cover 23 is installed over the return air duct. The return air cover 23 includes a number of slender narrow plates 231, which are arranged sequentially along the second direction.

[0042] Of the two adjacent narrow plates 231, one is close to the evaporator compartment 20 and the other is close to the refrigeration compartment 10, so that the return air cover 23 forms a double-layer structure; wherein, the second direction is horizontal and perpendicular to the first direction.

[0043] like Figures 1-3 In the middle, the first side wall 12 is the two longer side walls of the horizontal freezer. When the freezer is used in the bedroom, these two first side walls 12 are the front wall and the back wall.

[0044] In addition to the first sidewall 12, the inner liner 1 also includes two second sidewalls 13, which are connected to the two first sidewalls 12 and are arranged opposite to each other.

[0045] The step portion 11 is attached to one of the second sidewalls 13, which are the left wall and the right arm.

[0046] That is, the first direction is left and right, and the second direction is front and back.

[0047] Of course, the first sidewall 12 and the second sidewall 13 can also be interchanged, with the two first sidewalls 12 being the left wall and the two second sidewalls 13 being the front wall and the rear wall, respectively. However, in this article, we will use... Figure 3 Taking the first side wall 12 as an example, which consists of the front and rear walls.

[0048] In this application, a return air duct is provided on the evaporator chamber wall 2 for return air. The air in the refrigeration chamber 10 flows through the return air duct and directly enters the evaporator chamber 20 for heat exchange, which greatly reduces the return air distance and minimizes air volume loss.

[0049] like Figure 4 In the return air cover 23, the narrow plate 231 on the side closer to the evaporator compartment 20 is the inner narrow plate 2311, and the narrow plate 231 on the side away from the evaporator compartment 20 is the outer narrow plate 2312. The inner narrow plate 2311 and the outer narrow plate 2312 are arranged sequentially along the second direction.

[0050] Alternatively, the narrow plate 231 is staggered inside and out, which ultimately makes the return air cover 23 a double-layer structure as shown in the figure.

[0051] In the direction perpendicular to the narrow plate 231, the inner narrow plate 2311 and the outer narrow plate 2312 do not overlap. An external opening for air circulation is formed between two adjacent outer narrow plates 2312, and an inner narrow plate 2311 is provided inside the external opening.

[0052] Similarly, an internal opening for air circulation is also formed between two adjacent inner narrow plates 2311, and an outer narrow plate 2312 is provided on the outside of the internal opening.

[0053] It should be noted that, in relation to the return air cover 23, "inside" refers to the area closer to the evaporator compartment 20 relative to the refrigeration compartment 10, while "outside" refers to the area further away from the evaporator compartment 20 relative to the refrigeration compartment 10.

[0054] During the return air flow, the air in the refrigeration chamber 10 flows from the opening between the two outer narrow plates 2312 toward the evaporator chamber 20. When it encounters the inner narrow plate 2311 between the two outer narrow plates 2312, it can no longer flow toward the evaporator chamber 20, but can only flow toward both sides of the inner narrow plate 2311 and enter the evaporator chamber 20 between the inner narrow plates 2311.

[0055] Therefore, when an item is placed on the outside of the return air cover 23 (on the side near the refrigeration compartment 10), the air around the item can enter the evaporator compartment 20 through the gap between the two adjacent outer narrow plates 2312. The double-layered return air cover 23 can also prevent items from falling into the evaporator compartment 20 through the gap between the narrow plates 231.

[0056] In some embodiments of this application, the evaporator compartment 20 and the stepped portion 11 are arranged adjacent to each other, such as... Figure 1 , 3 In the middle, they are arranged side by side and adjacent to each other along the first direction; a number of air guides 232 are connected between two adjacent narrow plates 231, and the air guides 232 extend obliquely from top to bottom toward the side where the step portion 11 is provided.

[0057] The evaporator compartment 20 is arranged adjacent to the step portion 11, and the step portion 11 is located at one end of the casing. Thus, most of the space of the refrigeration chamber 10 is located on the side of the evaporator compartment 20 away from the step portion 11, and the return air direction is roughly from the end of the refrigeration chamber 10 away from the step portion 11 towards the step portion 11.

[0058] like Figure 4 , 5 In the middle, the outer narrow plate 2312 and the inner narrow plate 2311 are connected by the air guide 232. On the one hand, it can support the outer narrow plate 2312 and the inner narrow plate 2311. On the other hand, the air guide 232 has the effect of guiding the air in the refrigeration chamber 10.

[0059] In addition, the return air cover 23 is made of plastic, and the air guide vane 232 facilitates the demolding of the return air cover 23. The optimal tilt angle for the air guide vane 232 is approximately 45°.

[0060] In some embodiments of this application, such as Figure 4 In the middle, the evaporator compartment wall 2 includes a first compartment cover plate 21, a second compartment cover plate, a first heat insulation plate 22, and a second heat insulation plate.

[0061] The first compartment cover 21 and the second compartment cover are spaced apart along the second direction. The first heat insulation plate 22 and the second heat insulation plate are also spaced apart along the second direction and are respectively located on the side of the first compartment cover 21 and the second compartment cover near the evaporator compartment 20, so that the return air vent 24 is defined between the first heat insulation plate 22 and the second heat insulation plate.

[0062] like Figure 2 The return air cover 23 is hidden inside. Figure 4 The middle section is a cross-sectional view, showing only the front half of the horizontal freezer. Therefore, the second compartment cover and the second insulation panel cannot be shown in the diagram.

[0063] The first heat insulation plate 22 protrudes from the first hatch cover 21 to the side of the second heat insulation plate, and the second heat insulation plate protrudes from the second hatch cover to the side of the first heat insulation plate 22. That is, the distance between the first heat insulation plate 22 and the second heat insulation plate is less than the distance between the first hatch cover 21 and the second hatch cover.

[0064] The first compartment cover 21 and the second compartment cover serve to support and separate the compartments, forming two spaces: a refrigeration compartment 10 for storing items and an evaporator compartment 20 for storing evaporators.

[0065] The insulation panel can prevent the cold energy generated by the evaporator from being directly transferred to the refrigeration compartment 10, which would cause the temperature of the first compartment cover 21 and the second compartment cover to be too low and prone to frost formation.

[0066] If the distance between the first heat insulation plate 22 and the second heat insulation plate is less than the distance between the first cabin cover plate 21 and the second cabin cover plate, then the return air vent 24 is formed between the first heat insulation plate 22 and the second heat insulation plate.

[0067] In some embodiments of this application, the first heat insulation plate 22 and / or the second heat insulation plate are provided with air guide grooves 221, which extend toward the return air vent 24.

[0068] If the distance between the first heat insulation plate 22 and the second heat insulation plate is less than the distance between the first hatch cover plate 21 and the second hatch cover plate, then the first heat insulation plate 22 protrudes from the first hatch cover plate 21, and the second heat insulation plate protrudes from the second hatch cover plate.

[0069] A guide trough 221 is provided on the part of the first heat insulation plate 22 that protrudes from the first compartment cover plate 21, and a guide trough 221 is provided on the part of the second heat insulation plate that protrudes from the second compartment cover plate. Both guide troughs 221 extend toward the return air vent 24, guiding the air passing through the return air cover plate 23 to the return air vent 24.

[0070] Several air guide ducts 221 are provided, and the air guide ducts 221 can be provided on the top and / or side of the first heat insulation plate 22 and / or the second heat insulation plate.

[0071] like Figure 4 In the middle, in the air guide duct 221 located at the top, the part of the air guide duct 221 near the step portion 11 extends along the second direction and the opening faces the return air inlet 24.

[0072] The portion of the air guide slot 221 away from the step 11 is roughly at a right angle, with one end opening towards the return air inlet 24 and the other end opening towards the side away from the step 11, so that the air from the side of the evaporator compartment 20 away from the step 11 enters from the return air inlet 24 and extends towards the return air inlet 24.

[0073] In some embodiments of this application, the evaporator compartment 20 is adjacent to and at the same height as the step portion 11, the evaporator compartment wall 2 is L-shaped, and together with the two first side walls 12 and the step portion 11, it forms the aforementioned evaporator compartment 20.

[0074] The evaporator compartment 20 is set to be at the same height as the step 11, so that only one height difference is formed at the bottom of the refrigeration compartment 10, thus ensuring the aesthetics of the interior of the refrigeration compartment 10.

[0075] If the evaporator chamber wall 2 is L-shaped, then the first chamber cover 21 and the second chamber cover are also L-shaped, as are the first heat insulation plate 22 and the second heat insulation plate.

[0076] The L-shaped evaporator chamber wall 2 is formed as the side wall and top wall of one side of the evaporator chamber 20, the two first side walls 12 are formed as the front wall and rear wall of the evaporator chamber 20, the side wall of the step portion 11 near the evaporator chamber 20 is formed as the other side wall of the evaporator chamber 20, and the bottom of the inner liner 1 is formed as the bottom wall of the evaporator chamber 20.

[0077] In some embodiments of this application, the inner liner 1 further includes a support frame 3, which includes a bottom support plate 31 and a side plate 32. The bottom support plate 31 is hollow, and the side plate 32 is connected to the bottom support plate 31. The bottom support plate 31 is located at the bottom of the evaporator compartment 20, and the side plate 32 is located on the side of the evaporator compartment 20 near the step portion 11.

[0078] The support frame 3 is part of the inner liner 1. Its side plate 32 serves not only as the side wall of the evaporator compartment 20, but also as the side wall of the step portion 11. The bottom support plate 31 serves as the bottom wall of the evaporator compartment 20.

[0079] In some embodiments of this application, the inner liner 1 further includes a bottom plate 14 disposed on the side of the evaporator compartment 20 away from the step portion 11; one end of the support frame 3 is connected to the bottom plate 14, and the other end is connected to the top of the step portion 11; the evaporator compartment wall 2 is disposed on the support frame 3.

[0080] like Figure 4 In the middle, the bottom support plate 31 is slightly higher than the bottom plate 14. The bottom support plate 31 is provided with a first connecting part 33 at the end away from the step part 11. The first connecting part 33 extends downward from the bottom support plate 31.

[0081] The first connecting part 33 bends toward the side away from the step part 11, and a first mounting groove 331 is provided on the side away from the step part 11. The base plate 14 is disposed in the first mounting groove 331, so that the base plate 14 and the support frame 3 are connected.

[0082] The top of the side plate 32 is provided with a second connecting part 34. The second connecting part 34 bends from the side plate 32 toward the step part 11 and forms a second mounting slot 341. The top of the step part 11 is inserted into the second mounting slot 341, so that the support frame 3 is connected to the step part 11.

[0083] The second connecting part 34 is bent twice at 90°, which creates a height difference in the horizontal direction, and the height of the end near the step part 11 is higher than the height of the end near the side plate 32.

[0084] The first hatch cover 21 and the second hatch cover overlap at one end and are connected to the second connecting part 34; the other ends of the first hatch cover 21 and the second hatch cover are bent in the same direction as the first connecting part 33 and are attached to and connected to the first connecting part 33.

[0085] In some embodiments of this application, the horizontal freezer also includes a water tray 4, which is fixed to a hollow bottom support plate 31.

[0086] The purpose of the evaporator compartment 20 is to house the evaporator that cools the refrigeration compartment 10. The evaporator works for a long time and its surface is prone to frost, which affects the transfer of cold energy. Therefore, it is necessary to heat the evaporator to defrost it. A drip tray 4 is set at the bottom to collect the dripping defrosting water.

[0087] In some embodiments of this application, in the second direction, the water receiving tray 4 includes a guide portion 43 located in the middle, and the water receiving tray 4 extends obliquely downward from both ends of the guide portion 43.

[0088] like Figure 6 In the middle, the water receiving tray 4 also includes a first receiving part 41 and a second receiving part 42, which are respectively disposed at both ends of the flow guide part 43 in the second direction.

[0089] The first receiving portion 41 extends downward at an angle toward the flow guide portion 43 at the end away from the second receiving portion 42, and the second receiving portion 42 extends downward at an angle toward the flow guide portion 43 at the end away from the first receiving portion 41.

[0090] After the first receiving portion 41 and the second receiving portion 42 of the water receiving tray 4 receive the defrosting water from the evaporator, the defrosting water is concentrated in the guide portion 43 in the middle and discharged through the guide portion 43.

[0091] In some embodiments of this application, in the direction from the evaporator chamber 20 toward the step portion 11, the guide portion 43 of the water receiving tray 4 extends obliquely downward, and the drain outlet is located on the side of the guide portion 43 near the step portion 11.

[0092] The step section 11 is designed to make way for the compressor of the horizontal freezer. That is, the compressor is located below the step section 11. When the compressor is working, it generates a lot of heat and discharges defrost water into the compressor compartment where the compressor is located. The defrost water can be evaporated by the heat generated when the compressor is working.

[0093] In some embodiments of this application, the horizontal freezer also includes an air duct, which is fixed to the first side wall 12 and communicates with the evaporator compartment 20.

[0094] The air duct includes an upper air duct 51, a lower air duct 52 and a vertical air duct 53. The upper air duct 51 and the lower air duct 52 are arranged at intervals in the vertical direction. The vertical air duct 53 connects the upper air duct 51 and the evaporator compartment 20. Both the upper air duct 51 and the lower air duct 52 are provided with multiple air outlets at intervals.

[0095] The upper air duct 51 and the lower air duct 52 extend along the first direction, and both ends of the upper air duct 51 and the lower air duct 52 are close to the second side wall 13. In other words, the upper air duct 51 and the lower air duct 52 extend from one end of the refrigeration room 10 to the other end.

[0096] The air duct can be either an exhaust air duct or a return air duct. Since this application uses return air in the evaporator chamber wall 2, the air duct fixed to the first side wall 12 is more suitable for exhaust air.

[0097] Two horizontal air ducts, one high and one low, are provided on the first side wall 12 to ensure the uniformity of airflow in the cooling room 10 in both the length and height directions.

[0098] Of course, the air duct can also be provided with only one upper air duct 51 and connected to the evaporator compartment 20 through the vertical air duct 53, or only one lower air duct 52 connected to the evaporator compartment 20.

[0099] You can also set only one located in, such as Figure 4 The horizontal air duct between the upper-middle air duct 51 and the lower-middle air duct 52, or in Figure 4A horizontal air duct is added between the upper-middle air duct 51 and the lower-middle air duct 52.

[0100] In some embodiments of this application, the upper air duct 51 and the vertical air duct 53 are disposed on the side of the inner liner 1 away from the refrigeration chamber 10, and the lower air duct 52 is disposed on the side of the inner liner 1 close to the refrigeration chamber 10.

[0101] In horizontal freezers, food baskets are usually hung above the refrigeration compartment 10 to add partitions. The upper air duct 51 and the vertical air duct 53 are hidden outside the inner liner 1, so they will not interfere with the installation of the food baskets, nor will the protruding air ducts at the top reduce the distance between the front and back of the food baskets.

[0102] The downdraft duct 52 protrudes from the refrigeration chamber 10 and can serve as a mounting bracket for the food basket, thus sharing some of the load on the food basket.

[0103] Regarding the installation of the upwind duct 51 and the downwind duct 52, the specifics are as follows: Figure 7 middle.

[0104] The upper air duct 51 includes an upper air duct shell 511 and an upper air duct cover 512. The upper air duct shell 511 forms an upper air duct cavity with an opening facing the refrigeration room 10, and the upper air duct cover 512 covers the opening of the upper air duct cavity.

[0105] The upper air duct shell 511 is provided with a first upper slot 5111 and a first lower slot 5112. The first upper slot 5111 and the first lower slot 5112 are located at the top and bottom of the upper air duct shell 511, and the openings of the first upper slot 5111 and the first lower slot 5112 face the refrigeration chamber 10.

[0106] The upper air duct cover 512 is provided with an upper flange 5121 and a lower flange 5122. The upper flange 5121 and the lower flange 5122 are provided at the top and bottom of the upper air duct cover 512, respectively, and are provided in the first upper slot 5111 and the first lower slot 5112, so that the upper air duct cover 512 is fixed to the upper air duct shell 511.

[0107] The bottom of the upper air duct housing 511 extends downward near the opening of the upper air duct cavity and is provided with a fixing slot 5113. The top of the first side wall 12 is located in the fixing slot 5113, so that the upper air duct 51 is fixed to the first side wall 12. Furthermore, the upper air duct cover plate 512 is flush with the first side wall 12.

[0108] The downdraft duct 52 includes a downdraft duct cover 521, an upper reinforcing strip 522, and a lower reinforcing strip 523.

[0109] The cross-section of the downdraft cover 521 is C-shaped, and both the upper reinforcing strip 522 and the lower reinforcing strip 523 are L-shaped.

[0110] One side of the upper reinforcing strip 522 is fixed to the first side wall 12, and the other side has a second upper slot 5221 with an opening facing the refrigeration chamber 10.

[0111] The lower reinforcing strip 523 is fixed to the first side wall 12 on one side, and a second lower slot 5231 with an opening facing the refrigeration chamber 10 is provided on the other side.

[0112] The upper and lower ends of the downdraft cover 521 are respectively inserted into the second upper slot 5221 and the second lower slot 5231, so that the downdraft cover 521 is fixed to the first side wall 12 and together with the first side wall 12 forms a downdraft cavity.

[0113] The vertical air duct 53 includes a vertical air duct shell 531 and a vertical air duct cover plate. The vertical air duct shell 531 forms a vertical air duct cavity with an opening facing the refrigeration chamber 10, and the vertical air duct cover plate covers the opening of the vertical air duct cavity.

[0114] The vertical air duct cover is provided with a left flange and a right flange. The left flange and the right flange are located on the left and right sides of the vertical air duct cover, respectively. The left flange and the right flange are located inside the vertical air duct cavity to position the vertical air duct cover.

[0115] like Figure 8 In the middle, the upper air duct shell 511, the vertical air duct shell 531 and the support frame 3 are integrated into one piece, which is a plastic adsorption component and serves as part of the inner liner 1.

[0116] The upper air duct cover plate 512 and the vertical air duct cover plate are integrated and are installed together on the upper air duct cavity and the vertical air duct cavity.

[0117] like Figure 8 In the inner liner 1, there are also U-shaped large surrounding panel 15, U-shaped small surrounding panel 16 and small bottom plate 1714. The large surrounding panel 15, bottom plate 14, small surrounding panel 16 and small bottom plate 1714 are all sheet metal parts.

[0118] The inner liner 1 is composed of the large enclosure panel 15, the bottom plate 14, the small enclosure panel 16, the small bottom plate 1714, the upper air duct shell 511, the vertical air duct shell 531, and the support frame 3.

[0119] In the refrigeration chamber 10 formed by the large enclosure 15 and the large bottom plate 14, the evaporator compartment 20 is located on the side away from the step portion 11; in the refrigeration chamber 10 formed by the small enclosure 16 and the small bottom plate 1714, the portion above the step portion 11 is located.

[0120] In some embodiments of this application, the air duct is configured as an air outlet duct, and the vertical air duct 53 is provided with a side air outlet 533. In the first direction, the air outlet 533 is directed toward the side of the step portion 11.

[0121] When the air duct is set as an outlet air duct, the vertical air duct 53 not only connects to the evaporator compartment 20, but also has a side air outlet 533. The air outlet 533 is directed from the vertical air duct 53 to the stepped part 11 and is blown out at an angle.

[0122] This allows the cold air generated by the evaporator to be blown towards the space above the step 11, avoiding the risk of insufficient cold air in the space above the step causing the product to melt.

[0123] 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.

[0124] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this application and are not intended to limit the scope of protection of this application. All equivalent implementation methods or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this application.

Claims

1. A horizontal freezer, characterized in that, include: The inner liner (1) surrounds the receiving chamber. The inner liner (1) includes a stepped portion (11) and two first side walls (12). The stepped portion (11) is located at the bottom of one end of the receiving chamber in a first direction. The two first side walls (12) are parallel to the first direction. An evaporator wall (2) is provided in the housing compartment and divides the housing compartment into a refrigeration compartment (10) and an evaporator compartment (20); the evaporator wall (2) includes a return air duct and a return air cover (23), the return air duct is used for return air, and the return air cover (23) is installed on the return air duct; the return air cover (23) includes a number of slender narrow plates (231), the narrow plates (231) are arranged sequentially along a second direction; in two adjacent narrow plates (231), one is close to the evaporator compartment (20) and the other is close to the refrigeration compartment (10), so that the return air cover (23) forms a double-layer structure; The second direction is horizontal and perpendicular to the first direction.

2. The horizontal freezer according to claim 1, characterized in that, The evaporator compartment (20) is arranged adjacent to the step section (11); a number of air guide vanes (232) are connected between two adjacent narrow plates (231), and the air guide vanes (232) extend obliquely from top to bottom toward the side where the step section (11) is arranged.

3. The horizontal freezer according to claim 1, characterized in that, The evaporator chamber wall (2) includes a first chamber cover plate (21) and a second chamber cover plate spaced apart along a second direction, and a first heat insulation plate (22) and a second heat insulation plate disposed on the side of the first chamber cover plate (21) and the second chamber cover plate near the evaporator chamber (20), wherein the first heat insulation plate (22) and the second heat insulation plate are spaced apart along a second direction; The first heat insulation plate (22) protrudes into the first compartment cover plate (21) on one side of the second heat insulation plate, the second heat insulation plate protrudes into the second compartment cover plate on one side of the first heat insulation plate (22), and a return air vent (24) is defined between the first heat insulation plate (22) and the second heat insulation plate.

4. The horizontal freezer according to claim 3, characterized in that, The first heat insulation plate (22) and / or the second heat insulation plate are provided with air guide grooves (221), which extend toward the return air inlet (24).

5. The horizontal freezer according to claim 1, characterized in that, The evaporator compartment (20) is adjacent to and at the same height as the step portion (11). The evaporator compartment wall (2) is L-shaped and together with the two first side walls (12) and the step portion (11) forms the aforementioned evaporator compartment (20).

6. The horizontal freezer according to claim 5, characterized in that, The inner liner (1) also includes a support frame (3), which includes a bottom support plate (31) and a side plate (32). The bottom support plate (31) is hollow, and the side plate (32) is connected to the bottom support plate (31). The bottom support plate (31) is located at the bottom of the evaporator compartment (20), and the side plate (32) is located on the side of the evaporator compartment (20) near the step (11).

7. The horizontal freezer according to claim 6, characterized in that, The inner liner (1) also includes a bottom plate (14) disposed on the side of the evaporator compartment (20) away from the step portion (11); one end of the support frame (3) is connected to the bottom plate (14), and the other end is connected to the top of the step portion (11); the evaporator compartment wall (2) is disposed on the support frame (3).

8. The horizontal freezer according to claim 6, characterized in that, It also includes a water receiving tray (4), which is fixed to a hollow bottom support plate (31).

9. The horizontal freezer according to claim 8, characterized in that, In the second direction, the water receiving tray (4) includes a guide section (43) located in the middle, and the water receiving tray (4) extends downward at an angle from both ends of the guide section (43).

10. The horizontal freezer according to claim 9, characterized in that, The guide section (43) extends obliquely downward in the direction from the evaporator chamber (20) toward the step section (11).

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