Refrigeration equipment

Abstract

The utility model discloses refrigeration equipment, which relates to the technical field of refrigeration equipment, and comprises a box body, an evaporator and a cover plate assembly, the box body is provided with a storage cavity, a return air inlet and an evaporator bin, the evaporator bin is positioned below the storage cavity, the return air inlet is communicated with the storage cavity and the evaporator bin, and the return air inlet is positioned on the front side of the evaporator bin; the cover plate assembly is arranged in the evaporator bin and between the storage cavity and the evaporator; wherein the air outlet direction of the return air inlet is the extending direction of the front side face of the evaporator, the arrangement direction of the evaporator is the front-back direction, and the front side of the evaporator and / or the front side of the cover plate assembly are / is provided with a concave part, so that at least part of air entering from the return air inlet can enter the evaporator from the concave part, and the circulation performance of return air flow is good; and the problem of frost blockage can be relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to refrigeration equipment. Background Art

[0002] As for the technical field of refrigerators, in the related technology, the evaporator is arranged below the freezer compartment. Due to the low temperature of the evaporator, the side of the evaporator close to the return air outlet is prone to frost, forming frost blockage, which has a large resistance to the airflow, resulting in poor return air flow, and thus poor refrigeration effect. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a refrigeration device that can improve the frost blocking phenomenon and make the return air flow flow smoothly.

[0004] According to an embodiment of the utility model, the refrigeration equipment includes: a box body, which is provided with a storage cavity, a return air port and an evaporator bin, the evaporator bin is located below the storage cavity, the return air port connects the storage cavity and the evaporator bin, and the return air port is located on the front side of the evaporator bin; an evaporator, which is arranged in the evaporator bin; a cover plate assembly, which is arranged between the storage cavity and the evaporator; wherein the air outlet direction of the return air port is the extension direction of the front side surface of the evaporator, the arrangement direction of the evaporator is the front-to-back direction, and the front side of the evaporator and / or the front side of the cover plate assembly are provided with a recess, so that at least part of the air entering from the return air port can enter the evaporator from the recess.

[0005] The refrigeration equipment according to the embodiment of the utility model has at least the following beneficial effects: after the airflow enters the evaporator compartment from the return air inlet, it first reaches the front side of the evaporator and flows along the front side surface of the evaporator. In this embodiment, a recess is set on the front side of the evaporator or the cover plate assembly. Even if frost blockage occurs on the front side of the evaporator, at least part of the airflow can still enter the evaporator relatively smoothly from the recess and exchange heat with the evaporator, thereby improving the fluidity of the return airflow and improving the refrigeration effect.

[0006] In some embodiments, the cover plate assembly includes an evaporator cover plate and a thermal insulation layer, the thermal insulation layer is located between the evaporator cover plate and the evaporator, the evaporator is attached to the thermal insulation layer, and the projection of the evaporator on the horizontal plane completely falls within the projection of the thermal insulation layer on the horizontal plane.

[0007] In some embodiments, the recess is provided in the thermal insulation layer, and the air entering from the return air port can pass through the recess to reach the top surface of the evaporator and enter the evaporator.

[0008] In some embodiments, the evaporator includes a fin, and a notch is provided on a side of the fin close to the return air outlet to form the recess.

[0009] In some embodiments, the position of the return air outlet is higher than the position of the evaporator, and the air outlet direction of the return air outlet is from top to bottom.

[0010] In some embodiments, the recess is located at least one of above and below the evaporator.

[0011] In some embodiments, the position of the return air outlet is lower than or equal to the highest point on the front side of the evaporator, the return air outlet is located on the left wall or right wall of the evaporator bin, and the air outlet direction of the return air outlet is left and right.

[0012] In some embodiments, the recess is located on a side of the evaporator and / or the cover plate assembly away from the return air outlet.

[0013] In some embodiments, the refrigeration device further comprises a heating element, wherein the heating element is configured to provide heat for defrosting the evaporator.

[0014] In some embodiments, the evaporator is tilted, and the rear side of the evaporator is higher than the front side of the evaporator.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 It is a cross-sectional view of a refrigerator of some embodiments of the utility model;

[0018] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0019] Figure 3 It is a cross-sectional view of a refrigerator of some embodiments of the utility model;

[0020] Figure 4 It is a cross-sectional view of a refrigerator of some embodiments of the utility model;

[0021] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0022] Figure 6 It is a cross-sectional view of a compressor compartment of a refrigerator according to some embodiments of the present invention.

[0023] Reference numerals:

[0024] Refrigerator 1000;

[0025] Box body 100, storage cavity 110, refrigerating chamber 111, temperature-changing chamber 112, freezing chamber 113, return air outlet 120, evaporator compartment 130, drain outlet 140, compressor compartment 150;

[0026] Door body 200;

[0027] Evaporator 300, fin 310, third notch 311, first vertical section 312, horizontal section 313, second vertical section 314;

[0028] Cover plate assembly 400, evaporator cover plate 410, thermal insulation layer 420, recess 430;

[0029] Compressor 500, first fan 510, condenser 520, evaporating dish 530, electric control box 540;

[0030] The air duct assembly 600 , the air duct 610 , the air outlet 620 , and the second fan 630 . DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] It should be noted that the refrigeration device of this embodiment can be a refrigerator, a freezer or a wine cabinet, which can be understood as a device with a refrigeration function. In the following embodiments, the refrigeration device is mainly described as a refrigerator.

[0036] Reference Figure 1 As shown, the refrigerator 1000 of this embodiment includes a door body 200, a cabinet 100, an evaporator 300, and a cover assembly 400. The door body 200 is located at the front side of the cabinet 100, the door body 200 is rotatably connected to the cabinet 100, the evaporator 300 and the cover assembly 400 are arranged in the cabinet 100, and the cover assembly 400 is located above the evaporator 300. Specifically, refer to Figure 1 As shown, the box body 100 is provided with a storage cavity 110, a return air port 120 and an evaporator bin 130, the evaporator bin 130 is located directly below the storage cavity 110, the evaporator 300 is installed in the evaporator bin 130, the evaporator 300 is arranged in the front-to-back direction, and the cover plate assembly 400 is located between the storage cavity 110 and the evaporator 300. The return air port 120 connects the storage cavity 110 and the evaporator bin 130, the return air port 120 is located at the front side of the evaporator bin 130, and the position of the return air port 120 is higher than the position of the evaporator bin 130.

[0037] It should be noted that the airflow entering the evaporator bin 130 from the return air port 120 is called the return airflow. At the position of the return air port 120, the airflow direction of the return air port 120 is the extension direction of the front side of the evaporator 300, that is, the airflow flows along the extension direction of the front side of the evaporator 300. For example, when the front side of the evaporator 300 extends in the up-down direction, the airflow direction of the return air port 120 is the up-down direction. It can also be understood that the flow direction of the return airflow is roughly parallel to the front side of the evaporator 300.

[0038] In the above embodiment, the position of the return air outlet 120 is higher than the position of the evaporator bin 130, which can be interpreted as that the position of the return air outlet 120 is higher than the highest point of the evaporator 300. The return air outlet 120 can be arranged on the upper side wall of the evaporator bin 130 so that the return air flows from top to bottom, and the flow direction of the return air is roughly parallel to the front side of the evaporator 300.

[0039] In some embodiments, the position of the return air vent 120 may also be flush with the highest point of the evaporator 300, or may be lower than the highest point of the evaporator 300. For example, the return air vent 120 may also be arranged on the left wall or the right wall of the evaporator bin 130, so that the return air flows from left to right or from right to left, and then flows to the middle position of the evaporator 300, and enters the interior of the evaporator 300 from the front side of the evaporator 300.

[0040] Specifically, a recess 430 is provided on the front side of the evaporator 300, or a recess 430 is provided on the front side of the cover plate assembly 400, and the recess 430 is recessed toward the rear side of the evaporator 300. The airflow entering the evaporator bin 130 from the return air port 120 first reaches the front side of the evaporator 300, and then this part of the airflow can enter the evaporator 300 from the recess 430 to exchange heat with the evaporator 300.

[0041] It should be noted that when the return airflow hits the front side of the evaporator 300, due to the low temperature of the evaporator 300, the moisture in the return airflow will frost on the front side of the evaporator 300, and the frost will prevent the airflow from directly entering the evaporator 300 from the front side of the evaporator 300. In this embodiment, by providing a recess 430, the return airflow can pass through the recess 430 to enter the evaporator 300 more smoothly, reduce the resistance to the airflow, improve the fluidity of the airflow, improve the problem of frost blockage, and improve the cooling effect. It should also be noted that when the return airflow frosts on the front side of the evaporator 300, due to the small resistance to the airflow at the recess 430, the return airflow will preferentially pass through the recess 430 to enter the evaporator 300 after entering the evaporator compartment 130.

[0042] It is understandable that, in some embodiments, the position of the return air inlet 120 is lower than the highest point of the evaporator 300, and the return air inlet 120 is arranged on the left side wall of the evaporator bin 130. At this time, the recess 430 is located on the right side of the evaporator 300, that is, the recess 430 is far away from the return air inlet 120, so that the return air flow preferentially passes through the front side of the evaporator 300 to enter the interior of the evaporator 300, so that the air volume is more concentrated. At the same time, since the recess 430 is located on the side of the evaporator 300 away from the return air inlet 120, the probability of frost formation on the recess 430 can be reduced. When the front side of the evaporator 300 is blocked by frost, the recess 430 is not blocked by frost, and the return air flow can continue to enter the interior of the evaporator 300 through the recess 430. Of course, when the return air inlet 120 is arranged on the left side wall of the evaporator bin 130, the recess 430 can also be located at the upper side or lower side of the evaporator 300.

[0043] The following embodiment explains the principle of the recess 430 with respect to the specific arrangement of the recess 430 .

[0044] Reference Figure 1 and Figure 2 As shown, in some embodiments, when the recess 430 is provided on the front side of the cover plate assembly 400, the recess 430 can allow the return air flow to cross the frost on the front side of the evaporator 300. Specifically, because the recess 430 is recessed toward the rear side of the evaporator 300 and, in fact, the frost on the front side of the evaporator 300 is thinner, when the recess degree of the recess 430 is greater than the thickness of the frost on the front side of the evaporator 300, the return air flow can cross the frost on the front side of the evaporator 300 and enter the evaporator 300 from above the evaporator 300. It can also be understood that a portion of the structure is dug out on the front side of the cover plate assembly 400 to form the recess 430, and the recess 430 forms a make way space. The recess degree of the recess 430 can be understood as the length of the recess 430 in the front-to-back direction. The greater the recess degree of the recess 430, the more conducive it is to the circulation of the return air flow.

[0045] It should also be noted that when the front side of the evaporator 300 is not frosted, since the return air port 120 is not directly facing the recess 430, the return air flow is not easy to enter the evaporator 300 through the recess 430, and the ventilation space of the recess 430 is smaller than the ventilation space on the front side of the evaporator 300, and the resistance to the return air flow is greater. The return air flow generally flows along the outlet direction of the return air port 120. Therefore, referring to Figure 3 In the direction of the arrow in FIG. 4 , most of the return airflow enters the evaporator 300 from the middle position of the front side of the evaporator 300, and a small part of the return airflow enters the evaporator 300 through the recess 430. It can also be understood that the return airflow preferentially contacts the front side of the evaporator 300. If the moisture content of the return airflow is high, it will preferentially frost at the front side of the evaporator 300, because more return airflow will pass through this position. Since less return airflow passes through the recess 430, it is not easy to frost at the position of the recess 430. When the return airflow frosts at the front side of the evaporator 300, the front side of the evaporator 300 has a greater resistance to the return airflow. At this time, the resistance of the recess 430 to the return airflow is smaller, and the return airflow will preferentially pass through the recess 430 to enter the evaporator 300.

[0046] Reference Figure 4 and Figure 5As shown, in some embodiments, when the concave portion 430 is disposed on the front side of the evaporator 300, the length of the front side of the evaporator 300 becomes larger, which can be understood as changing from a straight line to a broken line, or from a straight line to an irregular line segment. From the front, it can also be understood that the concave portion 430 increases the surface area of ​​the front side of the evaporator 300. It should be noted that if the length of the front side of the evaporator 300 is small, the frost on the front side of the evaporator 300 will easily completely cover the front side of the evaporator 300 and block the evaporator 300. In this embodiment, the length of the front side of the evaporator 300 is increased, the length of the frost formed must be greater and the frost must be continuous to block the evaporator 300. It can also be understood that the total volume of the frost formed must be larger to block the evaporator 300, and it becomes more difficult for the frost to completely cover the front side of the evaporator 300, which prevents the return air flow from frosting on the front side of the evaporator 300 and is not easy to block the evaporator 300. Therefore, the return air flow can directly enter the evaporator 300 from the position of the recess 430. Even if the front side of the evaporator 300 is frosted, the return air flow can enter the evaporator 300 through the gaps in the frost. It can also be understood that since the return air flow flows along the front side of the evaporator 300, that is, the front side of the evaporator 300 first contacts the return air flow and frosts, the position of the recess 430 is farther away from the position where the return air flow initially flows in than the front side of the evaporator 300, and frost will form later. When the return air reaches the recess 430 , the water vapor content in the return air is lower than when it just flows in from the return air port 120 , and the temperature difference between the return air and the recess 430 is also reduced, making it less likely to frost.

[0047] In some embodiments, the recess 430 can be provided on the front side of the cover plate assembly 400, and at the same time, the recess 430 is also provided on the front side of the evaporator 300, that is, the recess 430 is formed on both the cover plate assembly 400 and the evaporator 300, so that the above two technical effects are superimposed together, which is more conducive to improving the frost blockage problem. Alternatively, the cover plate assembly 400 and the evaporator 300 can be used to jointly enclose a recess 430, the cover plate assembly 400 is provided with a first notch at a corner position close to the evaporator 300, and the evaporator 300 is provided with a second notch at a corner position close to the cover plate assembly 400, and the first notch and the second notch are combined to form the above recess 430.

[0048] It should be noted that the recess 430 may be formed by a partial depression of the cover plate assembly 400 or the evaporator 300 , and the recess 430 may also completely penetrate the cover plate assembly 400 or the evaporator 300 in the left-right direction.

[0049] It is understandable that, referring to Figure 4 and Figure 5As shown, in some embodiments, the evaporator 300 includes fins 310, which can extend in the front-to-back direction, have less resistance to the return airflow, and are conducive to the circulation of the return airflow. There are multiple fins 310, which are arranged at intervals in the left-right direction, and the multiple fins 310 are parallel to each other. There is a certain gap between two adjacent fins 310, and the return airflow is easy to frost between two adjacent fins 310. The frost is located on the side of the fin 310 close to the return air outlet 120. A third notch 311 is provided on the side of the fin 310 close to the return air outlet 120 to form the above-mentioned recess 430, and the third notch 311 can be square, triangular, semicircular, trapezoidal or other irregular shapes. It can also be understood that the fin 310 is processed into an irregular shape to form a recess 430. The recess 430 can increase the length of the edge line of the fin 310 on the side close to the return air outlet 120, so that the frost formed on the return air flow on the side of the fin 310 close to the return air outlet 120 is not easy to block the gap between the two fins 310.

[0050] Reference Figure 5 As shown, taking the third notch 311 in a square shape as an example, the front side of the fin 310 includes a first vertical section 312, a horizontal section 313 and a second vertical section 314 which are sequentially connected from top to bottom. It can be intuitively understood that the front side of the fin 310 is longer than when the recess 430 is not provided, and the frost formed on the front side of the return air flow on the fin 310 is difficult to completely block the first vertical section 312, the horizontal section 313 and the second vertical section 314. For example, when the frost blocks the first vertical section 312 and the second vertical section 314, the return air flow can still enter the evaporator 300 through the horizontal section 313.

[0051] It should be noted that the air outlet direction of the return air port 120 is the extension direction of the front side of the evaporator 300, so that the return air flow is preferentially returned through the front side of the evaporator 300, and has a larger return air area than the return air through the recess 430, so that the flow rate of the circulating air flow is larger and the cooling efficiency is better. When frost blockage occurs on the front side of the evaporator 300, the return air flow mainly returns through the recess 430. Since the recess 430 is closer to the path of the return air flow, the distance for the return air flow to reach the recess 430 is reduced, thereby taking into account the smoothness of the return air flow in the recess 430.

[0052] In some embodiments, the evaporator 300 is provided with a heating pipe, which is passed through the fin 310. The heating pipe can be perpendicular to the fin 310. When the refrigerator 1000 is in the defrosting mode, the heating pipe generates heat, and the heat of the heating pipe can be transferred to the fin 310. The fin 310 can quickly dissipate the heat and melt the frost on the evaporator 300. Specifically, a pressure sensor can be arranged in the box 100, and the pressure sensor can detect the wind pressure in the storage cavity 110. When the evaporator 300 is blocked by frost, the wind pressure will increase. At this time, the refrigerator 1000 can enter the defrosting mode to melt the frost on the evaporator 300. The heating pipe can cooperate with the recess 430 of the above embodiment to jointly promote the improvement of the frost blocking problem.

[0053] It can be understood that, in some embodiments, the recess 430 is located above the evaporator 300, which can also be understood as the recess 430 is located at the upper front side of the evaporator 300, or the recess 430 can be located below the evaporator 300, which can also be understood as the recess 430 is located at the lower front side of the evaporator 300, or the recess 430 can be located in the middle of the evaporator 300, which can also be understood as the recess 430 is located in the center of the front side of the evaporator 300.

[0054] It can be understood that in some embodiments, there are multiple recesses 430, and the multiple recesses 430 are arranged in the up and down direction. The multiple recesses 430 can be arranged on the cover plate assembly 400 alone, or the multiple recesses 430 can be arranged on the evaporator 300 alone. The multiple recesses 430 can be arranged on a single fin 310 of the evaporator 300, or the multiple recesses 430 can be arranged on multiple fins 310 respectively.

[0055] It is understandable that, referring to Figure 1 and Figure 2 As shown, in some embodiments, the cover assembly 400 includes an evaporator cover 410 and a thermal insulation layer 420, wherein the thermal insulation layer 420 is located below the evaporator cover 410, above the evaporator 300, between the evaporator cover 410 and the evaporator 300, and the top of the evaporator 300 is attached to the bottom of the thermal insulation layer 420. The projection of the evaporator 300 on the horizontal plane completely falls within the projection of the thermal insulation layer 420 on the horizontal plane, which can also be understood as, from top to bottom, the thermal insulation layer 420 completely covers the evaporator 300, and in the front-to-back direction, the length of the thermal insulation layer 420 is greater than the length of the evaporator 300, and the thermal insulation layer 420 can play a role in insulation, so that the temperature of the evaporator 300 is not easy to directly affect the temperature of the freezing chamber 113.

[0056] In the related art, if the thermal insulation layer 420 is not provided, there is a certain space between the evaporator 300 and the evaporator cover plate 410, and the return air flow will directly bypass the evaporator 300 and reach the rear side of the evaporator 300 from the top of the evaporator 300. The return air flow does not exchange heat with the evaporator 300, which will affect the cooling effect. In this embodiment, by providing the thermal insulation layer 420, the thermal insulation layer 420 can block the return air flow, prevent the return air flow from directly bypassing the evaporator 300 and reaching the rear side of the evaporator 300, and ensure that the return air flow and the evaporator 300 are fully exchanged with heat. At the same time, this is why the recess 430 is arranged on the front side of the evaporator 300 or the cover plate assembly 400. If the recess 430 penetrates the evaporator 300 or the cover plate assembly 400 in the front-to-back direction, it will cause part of the return air flow to directly bypass the evaporator 300.

[0057] Reference Figure 1 and Figure 3 As shown, in some embodiments, the evaporator cover 410 can be understood as the top wall of the evaporator bin 130, the return air port 120 is opened on the evaporator cover 410, the top surface of the insulation layer 420 is connected to the bottom surface of the evaporator cover 410, and the evaporator cover 410 is detachable. When the evaporator bin 130 is maintained later, after picking up the evaporator cover 410, the insulation layer 420 can be taken out together, which is convenient for operation.

[0058] In some embodiments, the thermal insulation layer 420 may be made of a thermal insulation material, such as foam, asbestos, etc., specifically EPS foam, which is light in weight and low in cost.

[0059] Reference Figure 1 and Figure 2 As shown, it can be understood that in some embodiments, the recess 430 can be provided on the insulation layer 420. Since the insulation layer 420 is relatively close to the evaporator 300, the return air flow can pass through the recess 430 to reach the top surface of the evaporator 300 and enter the evaporator 300. There can be a certain small gap between the insulation layer 420 and the evaporator 300 to facilitate the circulation of the return air flow. The recess 430 can be located at the lower front side of the insulation layer 420, so that the return air flow can enter the small gap between the insulation layer 420 and the evaporator 300 from the recess 430, and then enter the evaporator 300. At the same time, the recess 430 is provided on the insulation layer 420. In the front-to-back direction, the length of the insulation layer 420 is greater than the length of the evaporator 300. The insulation layer 420 can also be used to block the return air flow, reducing the flow of the return air flow entering the recess 430, so that the recess 430 can be blocked later than the front of the evaporator 300.

[0060] Reference Figure 3 and Figure 6As shown, it can be understood that in some embodiments, the refrigerator 1000 also includes a compressor 500, and the box body 100 is also provided with a compressor bin 150. The compressor 500 is installed in the compressor bin 150. The compressor bin 150 is located below the storage cavity 110 and in front of the evaporator bin 130. It can also be understood that the compressor bin 150 is arranged in front and the evaporator bin 130 is arranged in the back. Since the evaporator bin 130 is arranged in the back, the position of the return air port 120 is also moved backward, so that the return air port 120 can be transferred from a position close to the door body 200 to a middle position. It should be noted that if the position of the return air port 120 is too close to the door body 200, the wind pressure at the return air port 120 is low, and the pressure difference with the outside air is large, and it is easy to inhale hot air from the outside of the door seal assembly. When the outside air is inhaled into the evaporator bin 130 and contacts the evaporator 300, it will frost on the evaporator 300, resulting in an aggravation of the frost blockage problem. In this embodiment, by moving the position of the return air vent 120 backward so that the return air vent 120 is away from the door body 200, the return air vent 120 is not easy to inhale outside air, which can alleviate the frost blockage problem. It should also be noted that if the compressor compartment 150 is located at a rearward position, since the compressor compartment 150 occupies the space of the storage cavity 110, the depth of the drawer in the storage cavity 110 in the front-to-back direction is smaller. In this embodiment, by setting the compressor compartment 150 forward and arranging the compressor compartment 150 below the storage cavity 110, the drawer can be further extended in the front-to-back direction, increasing the depth, and facilitating the storage of more items.

[0061] It is understandable that, referring to Figure 3 As shown, in some embodiments, the evaporator 300 is tilted, and the end of the evaporator 300 away from the compressor compartment 150 is higher than the end of the evaporator 300 close to the compressor compartment 150. When the refrigerator 1000 is in the defrosting mode, the defrosted water on the evaporator 300 can be gathered at the lower end of the evaporator 300, which can be beneficial for the evaporator 300 to discharge the defrosted water and avoid the defrosted water remaining on the evaporator 300. Specifically, the bottom surface of the evaporator compartment 130 is tilted, and the evaporator 300 is placed on the bottom surface of the evaporator compartment 130, so that the evaporator 300 is in a tilted state.

[0062] Reference Figure 3 As shown, in some embodiments, since the evaporator 300 is in a tilted state, the top surface of the evaporator 300 is tilted, and the bottom surface of the thermal insulation layer 420 can be tilted so that the bottom surface of the thermal insulation layer is parallel to the top surface of the evaporator 300, and the evaporator cover 410 is horizontally arranged to avoid protruding upward into the storage cavity 110 and occupying the space of the storage cavity 110.

[0063] Reference Figure 3As shown, in some embodiments, a drain port 140 is provided on one side of the evaporator compartment 130 close to the compressor compartment 150, and the drain port 140 is connected to the compressor compartment 150. The drain port 140 can discharge the defrost water on the evaporator 300 into the compressor compartment 150, and the defrost water is evaporated by the heat in the compressor compartment 150.

[0064] It is understandable that, referring to Figure 6 As shown, in some embodiments, the refrigerator 1000 further includes a first fan 510 and a condenser 520, the first fan 510 and the condenser 520 are located in the compressor compartment 150, the first fan 510 is located between the compressor 500 and the condenser 520, and the compressor 500, the first fan 510 and the condenser 520 are arranged in the left-right direction. In some embodiments, the first fan 510 is an axial fan, the side of the first fan 510 close to the compressor 500 is the air outlet side, and the side of the compressor 500 close to the condenser 520 is the air suction side, or the side of the first fan 510 close to the compressor 500 is the air suction side, and the side of the compressor 500 close to the condenser 520 is the air outlet side. The ventilation openings of the compressor compartment 150 can be arranged on the left and right sides to correspond to the air inlet and air outlet sides of the first fan 510. The ventilation openings of the compressor compartment 150 can also be arranged on the front side of the compressor compartment 150. There are no obstacles on the front side of the compressor compartment 150, which can be conducive to airflow. Alternatively, the ventilation openings of the compressor compartment 150 can also be arranged on the lower side of the compressor compartment 150, and ventilation can be achieved by utilizing the distance between the compressor compartment 150 and the ground.

[0065] It can be understood that, in some embodiments, the condenser 520 is located inside the cabinet 100, and the condenser 520 can also be arranged on the side walls around the cabinet 100, such as the lower side, rear side, upper side, left side or right side wall of the cabinet 100, so as to fully utilize the surface area of ​​the cabinet 100, increase the heat dissipation area of ​​the condenser 520, and improve the heat dissipation effect of the condenser 520.

[0066] It is understandable that, referring to Figure 3 As shown, since the bottom surface of the evaporator bin 130 is a certain distance away from the bottom surface of the cabinet 100, in some embodiments, the condenser 520 can also be arranged below or directly below the evaporator bin 130, so as to make full use of the space between the evaporator bin 130 and the bottom surface of the cabinet 100 and improve the heat dissipation effect of the condenser 520.

[0067] It is understandable that, referring to Figure 6As shown, in some embodiments, the refrigerator 1000 also includes an evaporating dish 530, and the evaporating dish 530 can receive the defrost water discharged from the evaporator bin 130. The condenser 520 is connected to the compressor 500. The first fan 510 and the condenser 520 are located above the evaporating dish 530. The condenser 520 can directly contact the defrost water in the evaporating dish 530, so that the heat of the condenser 520 can evaporate the defrost water. The defrost water evaporates into gas and absorbs heat, which is beneficial to absorb the heat in the compressor bin 150. The first fan 510 can drive the airflow to blow through the defrost water in the evaporating dish 530, which can increase the evaporation rate of the defrost water.

[0068] It is understandable that, referring to Figure 6 As shown, in some embodiments, the refrigerator 1000 also includes an electric control box 540, which is located in the compressor compartment 150, the evaporating dish 530 is located between the compressor 500 and the electric control box 540, the electric control box 540 is located on the right side of the evaporating dish 530, and the second fan 630 is located on the side of the condenser 520 away from the electric control box 540, and the airflow blown by the second fan 630 can also dissipate heat for the electric control box 540.

[0069] It is understandable that, referring to Figure 3 As shown, in some embodiments, the refrigerator 1000 also includes a duct assembly 600 and a second fan 630. The duct assembly 600 is provided with an air duct 610 connecting the evaporator bin 130 and the storage cavity 110. The air duct 610 is provided with an air outlet 620. The air outlet 620 is directly connected to the storage cavity 110. The second fan 630 is located in the air duct 610 and does not occupy the space of the evaporator bin 130. The installation height of the second fan 630 is greater than the installation height of the evaporator 300. In some embodiments, the air duct 610 extends in the up and down directions, and the air outlet 620 is located above the second fan 630. The second fan 630 can be a centrifugal fan. The front side of the centrifugal fan is the air inlet side, and the upper side of the centrifugal fan is the air inlet side. The airflow in the air duct 610 can be pushed upward. The air duct 610 is located behind the storage cavity 110, so that the second fan 630 is located behind the storage cavity 110. The thickness of the second fan 630 in the front and rear directions is relatively small, which can reduce the space occupied by the air duct 610 in the storage cavity 110 and has less impact on the depth of the drawer.

[0070] In general, the direction of airflow can be referred to Figure 3In the direction of the arrow in, first, the second fan 630 sends the air out from the air outlet 620, the air passes through the storage cavity 110, and enters the evaporator bin 130 from the return air port 120 at the bottom of the storage cavity 110. At the air outlet 620, the air passes through the air outlet 620 from top to bottom, and the air entering the evaporator bin 130 from the air outlet 620 first reaches the front side of the evaporator 300, and the air flow flows from front to back and passes through the evaporator 300 to reach the back side of the evaporator 300 to exchange heat with the evaporator 300. Since the temperature of the evaporator 300 is relatively low, the air flow may frost on the front side of the evaporator 300, which has a certain resistance to the air flow. However, the present embodiment is provided with a recess 430, and the air flow can enter the evaporator 300 more smoothly through the recess 430, and then the air flow flows upward along the air duct 610 and returns to the air outlet 620 to form a circulating flow loop.

[0071] It should be noted that in the above embodiment, the space for storing food in the cabinet 100 of the refrigerator 1000 is collectively referred to as the storage cavity 110, that is, the storage cavity 110 may refer to a single cavity or the sum of multiple cavities. Figure 1 As shown, in some embodiments, the storage chamber 110 includes a refrigerating chamber 111, a temperature-changing chamber 112, and a freezing chamber 113 arranged in sequence from top to bottom. It should be noted that, in some other embodiments, the storage chamber 110 may also include only the refrigerating chamber 111 and the freezing chamber 113, or only one of the refrigerating chamber 111, the temperature-changing chamber 112, and the freezing chamber 113. In this embodiment, the storage chamber 110 is the freezing chamber 113, the compressor compartment 150 and the evaporator compartment 130 are both located directly below the freezing chamber 113, and the second fan 630 is a refrigerating fan to achieve a refrigeration effect, and the second fan 630 is located behind the freezing chamber 113.

[0072] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Refrigeration equipment, characterized in that include: The box body is provided with a storage cavity, a return air port and an evaporator bin, wherein the evaporator bin is located below the storage cavity, the return air port communicates with the storage cavity and the evaporator bin, and the return air port is located at the front side of the evaporator bin; an evaporator, disposed in the evaporator bin; A cover plate assembly, disposed between the storage cavity and the evaporator; Among them, the air outlet direction of the return air outlet is the extension direction of the front side of the evaporator, the arrangement direction of the evaporator is the front-to-back direction, and the front side of the evaporator and / or the front side of the cover plate assembly are provided with a recess so that at least part of the air entering from the return air outlet can enter the evaporator from the recess.

2. The refrigeration equipment according to claim 1, characterized in that: The cover plate assembly includes an evaporator cover plate and a thermal insulation layer, wherein the thermal insulation layer is located between the evaporator cover plate and the evaporator, the evaporator is attached to the thermal insulation layer, and the projection of the evaporator on the horizontal plane completely falls within the projection of the thermal insulation layer on the horizontal plane.

3. The refrigeration equipment according to claim 2, characterized in that: The recessed portion is provided in the thermal insulation layer, and the air entering from the return air port can reach the top surface of the evaporator through the recessed portion and enter the evaporator.

4. The refrigeration equipment according to claim 1, characterized in that: The evaporator comprises a fin, and a notch is provided on one side of the fin close to the return air port to form the recess.

5. The refrigeration equipment according to claim 4, characterized in that: The position of the return air outlet is higher than the position of the evaporator, and the air outlet direction of the return air outlet is from top to bottom.

6. The refrigeration device according to claim 5, characterized in that: The recessed portion is located at least one of above and below the evaporator.

7. The refrigeration device according to claim 1, characterized in that: The position of the return air outlet is lower than or equal to the highest point of the front side of the evaporator, the return air outlet is located on the left wall or the right wall of the evaporator bin, and the air outlet direction of the return air outlet is left and right.

8. The refrigeration device according to claim 7, characterized in that: The recessed portion is located on a side of the evaporator and / or the cover plate assembly away from the return air port.

9. The refrigeration device according to claim 1, characterized in that: The refrigeration device further comprises a heating element, wherein the heating element is configured to provide heat for defrosting the evaporator.

10. The refrigeration device according to claim 1, characterized in that: The evaporator is arranged tilted, and the rear side of the evaporator is higher than the front side of the evaporator.

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