A refrigerator with a sloped drain pipe at the bottom

Abstract

The refrigerator with the inclined drain pipe at the bottom of the refrigerator is a cabinet with a storage chamber defined therein, a freezer chamber for arranging an evaporator at the bottom of the storage chamber, a heat dissipation compartment is formed at the bottom rear of the freezer chamber, a front wall of the heat dissipation compartment extends from the center of the cabinet bottom plate from front to rear at an upward incline, an evaporator tray arranged in the heat dissipation compartment, a drain pipe that extends from the bottom of the freezer chamber at an upward incline from front to rear, passes through the front wall of the heat dissipation compartment and further extends to the evaporator tray to drain frost water in the freezer chamber to the evaporator tray, and a water pipe fixing member arranged at a position where the drain pipe passes through the front wall and used to fix the drain pipe, the water pipe fixing member having a first fixing surface abutting the front wall of the heat dissipation compartment. This solution avoids foaming overflow and improves fixing reliability.

Description

[Technical Field]

[0001] The present invention relates to the technical field of refrigeration equipment, and more particularly to a refrigerator having an inclined drain pipe at the bottom thereof. [Background technology]

[0002] In bottom-mounted evaporator refrigerators, the evaporator is located in the freezer compartment at the bottom of the storage compartment, which elevates the storage compartment and allows the user to easily access the bottom storage items.

[0003] The heat dissipation compartment of a bottom-mounted evaporator refrigerator is located at the rear bottom of the refrigerator, i.e., at the rear of the lower part of the freezer compartment. In order to maximize the heat dissipation space, the front wall of the heat dissipation compartment (also called the bottom steel plate of the refrigerator) is generally inclined.

[0004] The drain pipe drains water from the bottom of the freezer compartment to the evaporator tray in the heat dissipation compartment. The relative positions of the freezer compartment and the heat dissipation compartment result in a small drain angle. Compared to conventional refrigerators, in which the drain pipe passes vertically through the bottom steel plate, the drain pipe of a bottom-mounted evaporator refrigerator forms an acute angle with the bottom steel plate, making it difficult to fix during processing and prone to gaps. When foaming is performed between the freezer compartment and the heat dissipation compartment, the foam material is likely to overflow into the heat dissipation compartment from the pipe insertion position. Furthermore, the small drain angle of the drain pipe results in poor drainage at the pipe insertion position. Summary of the Invention

[0005] SUMMARY OF THE INVENTION It is an object of the present invention to provide a refrigerator with a sloped drain at the bottom that overcomes or at least partially solves the above problems.

[0006] One object of the present invention is to reduce the difficulty of fixing a drain pipe of a refrigerator at the position where it passes through a heat dissipation compartment.

[0007] A further object of the present invention is to avoid overflow at the point of penetration of the drain pipe.

[0008] In order to achieve the above object, the present invention provides a refrigerator having an inclined drain pipe at the bottom of the refrigerator, the refrigerator comprising: A cabinet having a storage chamber defined therein and a freezing chamber formed at the bottom of the storage chamber for disposing an evaporator, wherein a heat dissipation compartment is formed at the rear of the lower part of the freezing chamber in the cabinet, and the front wall of the heat dissipation compartment extends from the center of the cabinet bottom plate, sloping upward from front to rear; an evaporating dish disposed within the heat dissipation compartment; a drain pipe that slopes downward from the bottom of the freezer compartment from front to rear, passes through the front wall of the heat dissipation compartment, and then extends to the evaporator tray, for discharging frost water in the freezer compartment into the evaporator tray; and a water pipe fixing member arranged at a position where the drain pipe passes through the front wall, the water pipe fixing member being used to fix the drain pipe and having a first fixing surface abutting the front wall of the heat dissipation compartment.

[0009] Optionally, a front wall through-hole is provided at a position on the front wall of the heat dissipation compartment through which the drain pipe passes, and the shape of the front wall through-hole is consistent with the cross-sectional shape of the drain pipe in the plane of the front wall of the heat dissipation compartment; The water pipe fixing member has a pipe through-hole for the drain pipe to pass through, and the opening shape of the pipe through-hole formed in the first fixing surface matches the shape of the front wall through-hole.

[0010] Optionally, a second fixing surface is formed on the side of the water pipe fixing member away from the first fixing surface, the second fixing surface is perpendicular to the axial direction of the drain pipe, and the opening shape of the pipe through hole formed in the second fixing surface matches the cross section of the drain pipe.

[0011] Optionally, the drain pipe is a first segment having a first end connected to the bottom of the freezing chamber and a second end passing through a pipe through-hole and having a connecting pipe structure formed on an outer periphery thereof; and a second segment connected to the second end of the first segment and extending to the evaporating dish.

[0012] Optionally, the connecting pipe structure has a threaded structure, and the refrigerator further includes a fixing nut, the fixing nut being detachably connected to the threaded structure, an end of the fixing nut abutting against the second fixing surface, and used to fix the drain pipe and the water pipe fixing member.

[0013] Optionally, the first segment is a rigid pipe and at least a portion of the second segment is a corrugated hose; and / or The slope angle of the drainage pipe is at least 5°.

[0014] Optionally, the first segment has a positioning rib formed along the axial direction on the radial outer periphery of at least the portion that passes through the pipe through hole, and the pipe through hole has a positioning groove formed on the radial outer periphery that cooperates with the positioning rib, and the first segment is limited by the cooperation of the positioning rib and the positioning groove.

[0015] Optionally, the opening of the pipe through-hole formed in the first fixing surface is located at the center of the first fixing surface, and the first fixing surface has areas around the opening that abut against the front wall of the heat dissipation compartment.

[0016] Optionally, a protrusion is formed on the front wall of the heat dissipation compartment in an area corresponding to the water pipe fixing member, and the water pipe fixing member is embedded in a recess behind the protrusion.

[0017] Optionally, the refrigerator having an inclined drain pipe at the bottom thereof may further include: a blower assembly provided in a horizontally intermediate portion of the heat dissipation compartment, the blower assembly dividing the heat dissipation compartment into a first heat dissipation cavity and a second heat dissipation cavity along the horizontal direction of the cabinet, the blower assembly having a heat dissipation fan attached to a side facing the first heat dissipation cavity and a condenser disposed on a side facing the second heat dissipation cavity; The heater further includes a compressor mounted in the first heat dissipation cavity, and the evaporator dish is mounted in the second heat dissipation cavity.

[0018] Based on the above description, those skilled in the art will understand that in the technical solution described in this invention, the evaporating dish is placed in the heat dissipation compartment, the drain pipe slopes downward from the bottom of the freezer compartment from front to rear, passes through the front wall of the heat dissipation compartment and continues to the evaporating dish, the drain pipe forms an acute angle with the plane of the front wall of the heat dissipation compartment, and the first fixing surface of the water pipe fixing member abuts against the front wall of the heat dissipation compartment and fixes the drain pipe via the water pipe fixing member. The first fixing surface prevents foaming overflow and improves connection reliability.

[0019] Furthermore, in the solution of the present invention, a second fixing surface is formed on the side away from the first fixing surface of the water pipe fixing member, the second fixing surface is perpendicular to the axial direction of the drainage pipe, the opening shape of the pipe through-hole formed on the second fixing surface is consistent with the cross section of the drainage pipe, and the fixing nut or other fixing member abuts against the second fixing surface as a whole, which improves connection reliability and makes operation convenient.

[0020] Furthermore, the solution of the present invention improves the structure of the front wall of the heat dissipation compartment, the water pipe fixing member, etc., thereby improving the fixing reliability of the drain pipe and reducing failures caused by drainage.

[0021] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the present invention taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0022] In order to more clearly describe the technical solutions of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same reference numerals represent the same or similar components or parts in different accompanying drawings, and the accompanying drawings of the present invention are not necessarily drawn to scale.

[0023] [Figure 1] FIG. 10 is a rear top axial side view of a bottom local structure of a refrigerator having an inclined drain pipe at the bottom according to some embodiments of the present invention. [Figure 2]FIG. 3 is a cross-sectional view of the bottom local structure in FIG. 2 along the AA direction. [Figure 3] FIG. 2 is a rear-upper axial side view of the bottom local structure shown in FIG. 1. [Figure 4] FIG. 4 is a cross-sectional view of the bottom local structure shown in FIG. 3 along the BB direction. [Figure 5] 1 is a schematic diagram of the distribution of main components in a heat dissipation compartment of a refrigerator according to some embodiments of the present invention. [Figure 6] 1 is an exploded view of an assembly structure of a blower assembly, a heat dissipation fan, and a condenser of a refrigerator according to some embodiments of the present invention. [Figure 7] 1 is a structural diagram of an evaporating tray of a refrigerator according to some embodiments of the present invention. [Figure 8] 1 is a structural diagram of a drain pipe and a front wall of a heat dissipation compartment of a refrigerator according to some embodiments of the present invention; [Figure 9] 9 is a cross-sectional view of the cooperating structure shown in FIG. 8 along the CC direction. [Figure 10] 10 is a local enlarged view of region D of the cooperating structure shown in FIG. 9. [Figure 11] 1 is a schematic view of a cooperative structure of a drain pipe and a water pipe fixing member in a refrigerator according to some embodiments of the present invention, taken at an angle; [Figure 12] FIG. 12 is a schematic view of the water pipe fixing member in FIG. [Figure 13] 10 is a schematic view of a cooperative structure of a drain pipe and a water pipe fixing member in a refrigerator according to some embodiments of the present invention, taken from another angle; FIG. [Figure 14] FIG. 14 is a schematic view of the water pipe fixing member in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0024] Those skilled in the art should understand that the embodiments described below are only some of the embodiments of the present invention, not all of the embodiments of the present invention, and some of the embodiments are used to interpret the technical principles of the present invention and do not limit the protection scope of the present invention. Based on the embodiments provided by the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the protection scope of the present invention.

[0025] In describing the present invention, directions or positional relationships indicated by terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the directions or positional relationships shown in the accompanying drawings and are used for convenience of description and do not necessarily indicate or imply that the apparatus or device necessarily has a specific orientation or is configured and operated in a specific orientation, and therefore should not be understood as limitations of the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and do not indicate or imply relative importance.

[0026] Furthermore, in the description of the present invention, unless otherwise clearly defined or limited, terms such as "attached," "coupled," and "connected" should be understood in a broad sense, and may mean, for example, fixed, detachably connected, integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or internal communication between two devices. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0027] Figure 1 is a rear upper axial side view of a bottom local structure of a refrigerator having an inclined drain pipe at the bottom of the refrigerator according to some embodiments of the present invention, Figure 2 is a cross-sectional view of the bottom local structure in Figure 2 along the AA direction, Figure 3 is a rear upper axial side view of the bottom local structure shown in Figure 1, and Figure 4 is a cross-sectional view of the bottom local structure shown in Figure 3 along the BB direction.

[0028] As shown in FIGS. 1 to 4, in some embodiments of the present invention, a refrigerator mainly includes a cabinet 1, a compressor 2, a blower assembly 3, an evaporation dish 4, and an evaporator 5.

[0029] The cabinet 1 is defined by a storage compartment 11, a heat dissipation compartment 12, and a freezer compartment 13. The number of storage compartments 11 is not limited to two as shown in the figure, and may be other numbers, such as one or more, as needed. When there is one storage compartment 11, the storage compartment 11 may be a freezer compartment, a temperature-variable compartment, or a refrigerator compartment. When there are two or more storage compartments 11, the multiple storage compartments 11 may include at least one or more of a freezer compartment, a temperature-variable compartment, and a refrigerator compartment. When specifically implementing the technical solution of the present invention, those skilled in the art can determine the number of storage compartments 11 and their functions as needed.

[0030] A heat dissipation compartment 12 is located at the rear bottom of the cabinet 1. In some embodiments, a freezer compartment 13 for accommodating an evaporator is provided at the bottom of the storage compartment 11. That is, the freezer compartment 13 is located in front of and above the heat dissipation compartment 12, and the cabinet 1 has the heat dissipation compartment 12 formed at the rear below the freezer compartment 13, thereby realizing a bottom-mounted evaporator refrigerator. The freezer compartment 13 occupies the bottom area of ​​the inner liner, elevating the storage compartment 11 and reducing the amount of bending required when users access and manipulate items in the storage compartment 11, improving the user experience. The evaporator 5 is installed in the freezer compartment 13 and is used to supply cool air into the storage compartment 11.

[0031] To divide the space, the heat dissipation compartment 12 is divided into a first heat dissipation cavity 121 and a second heat dissipation cavity 122 by the blower assembly 3, and different components are arranged in each cavity.

[0032] FIG. 5 is a schematic diagram of the distribution of main components within the heat dissipation compartment 12 of a refrigerator according to some embodiments of the present invention, in which a compressor 2, a blower assembly 3, and an evaporator dish 4 are arranged in that order from left to right along the horizontal direction of the refrigerator within the heat dissipation compartment 12.

[0033] The blower assembly 3 is disposed in the horizontal middle of the heat dissipation compartment 12, which is divided into a first heat dissipation cavity 121 and a second heat dissipation cavity 122 along the horizontal direction of the cabinet 1, with a fan fixing structure provided on the side of the blower assembly 3 facing the first heat dissipation cavity 121 and a condenser fixing structure provided on the side of the blower assembly 3 facing the second heat dissipation cavity 122. The compressor 2 and the evaporator dish 4 are disposed in the first heat dissipation cavity 121 and the second heat dissipation cavity 122, respectively.

[0034] The compressor 2 is located in the first heat dissipation cavity 121 and is connected to a condenser (not shown in FIG. 5, blocked by the blower assembly 3) via a refrigeration line (not shown).

[0035] The evaporator dish 4 is disposed in the heat dissipation compartment 12. Specifically, the evaporator dish 4 is mounted in the second heat dissipation cavity 122 and is used to receive water drained from a drain pipe 41 connected to the freezer compartment 13. The drain pipe 41 extends from the bottom of the freezer compartment 13 to the heat dissipation compartment 12. That is, the upper end of the drain pipe 41 communicates with the bottom of the freezer compartment 13, and the lower end of the drain pipe 41 extends to the evaporator dish 4. The drain pipe 41 is used to drain defrosted water from the refrigerator into the evaporator dish 4, allowing the evaporator dish 4 to evaporate the water into the ambient air.

[0036] The drain pipe 41 is arranged so as to slope downward from the bottom of the freezer compartment 13 from front to rear, passes through the front wall 53 of the heat dissipation compartment 12, and then extends to the evaporator dish 4, thereby discharging frost water from the freezer compartment 13 into the evaporator dish 4.

[0037] The bottom plate of heat dissipation compartment 12 is provided with a heat dissipation air inlet 321 and a heat dissipation air outlet 322 at the front of first heat dissipation cavity 121 and second heat dissipation cavity 122, respectively. Ambient air from below the refrigerator enters heat dissipation compartment 12 through heat dissipation air inlet 321, first exchanges heat with compressor 2, passes through the heat dissipation fan and condenser, promotes the evaporation of water in evaporator pan 4, and is then discharged downward through heat dissipation air outlet 322. This smooths the heat dissipation airflow, improving the heat dissipation efficiency of each component. A partition member is further provided on the underside of the refrigerator's bottom plate to separate heat dissipation air inlet 321 and heat dissipation air outlet 322, preventing the discharged air from being re-inhaled after heat dissipation.

[0038] The bottom plate of heat dissipation compartment 12 is also called the compressor support plate, and a first roller 51 and a second roller 52 are arranged on both the left and right sides thereof. That is, first roller 51 is arranged on the bottom plate of heat dissipation compartment 12 on the opposite side of blower assembly 3 with compressor 2 in between, and second roller 52 is arranged on the bottom plate of heat dissipation compartment 12 on the opposite side of blower assembly 3 with evaporator dish 4 in between. First roller 51 and second roller 52 are used to roll the refrigerator when it is moved.

[0039] 6 is an exploded view of the assembled structure of blower assembly 3, heat dissipation fan 32, and condenser 31 of a refrigerator according to some embodiments of the present invention. Blower assembly 3, heat dissipation fan 32, and condenser 31 are pre-assembled to form a single unit, forming a blower structure for passing heat dissipation airflow, so that the airflow flows entirely through condenser 31, improving heat dissipation efficiency, while also making the structure more compact and simplifying the assembly process.

[0040] The blower assembly 3 is disposed in the horizontal middle of the heat dissipation compartment 12, which is divided into a first heat dissipation cavity 121 and a second heat dissipation cavity 122 along the horizontal direction of the cabinet 1. A fan fixing structure is provided on the side of the blower assembly 3 facing the first heat dissipation cavity 121, and a condenser fixing structure is provided on the side of the blower assembly 3 facing the second heat dissipation cavity 122. That is, the fan fixing structure faces the compressor 2, and the condenser fixing structure faces the evaporator dish 4. The blower assembly 3 is disposed in the front-to-rear direction. The fan fixing structure and the condenser fixing structure may each be engaging structures, and are engaged with the housing of the heat dissipation fan 32 and the condenser 31, respectively.

[0041] The heat dissipation fan 32 is attached to the fan fixing structure and is used to promote the formation of a heat dissipation airflow that enters from outside the cabinet, passes through the first heat dissipation cavity 121 and the second heat dissipation cavity 122, and then is discharged from the cabinet. The condenser 31 is attached to the condenser fixing structure and is cooled by the heat dissipation airflow. The airflow passes through the compressor 2, condenser 31, and evaporator pan 4 in sequence, dissipating heat from each component in turn, improving heat dissipation efficiency.

[0042] The blower assembly 3 is provided with a fan fixing structure and a condenser fixing structure on both sides, and the heat dissipation fan 32 and condenser 31 are assembled to form an integrated blower structure, which reduces the space occupied by the heat dissipation fan 32 and condenser 31. The arrangement of components within the heat dissipation compartment is more compact, providing more space for the compressor 2 and evaporator pan 4, which is advantageous for improving heat dissipation efficiency. Compared with the prior art solution of installing the condenser above the evaporator pan 4, the structure of this embodiment reduces the height of the heat dissipation compartment 12.

[0043] The blower assembly 3 is composed of a bracket body 33 and a windshield 34. The bracket body 33 has a rectangular cylindrical shape and extends laterally, i.e., left-right, through the cabinet 1. The cylindrical shape of the bracket body is used to allow the heat dissipation airflow to pass through. The windshield 34 extends from the front end of the bracket body 33 and seals off the front areas of the first heat dissipation cavity 121 and the second heat dissipation cavity 122, preventing the heat dissipation airflow from returning and allowing the airflow to be blown out only through the cylindrical portion of the bracket body 33.

[0044] A microchannel condenser is preferably used as the condenser 31, which saves space occupied by the condenser 31 and makes it easy to fit with the bracket body 33. The direction of the gaps between the microchannels of the microchannel condenser is aligned with the direction of the heat dissipation airflow, so that all the heat dissipation airflow must pass through the condenser 31, improving the heat exchange efficiency.

[0045] During assembly, the condenser 31, the heat dissipation fan 32 and the blower assembly 3 are first pre-assembled to form an integrated pre-assembled assembly, and then the whole can be installed inside the cabinet 1.

[0046] 7 is a structural diagram of an evaporating dish 4 in a refrigerator according to some embodiments of the present invention. The evaporating dish 4 is disposed within the heat dissipation compartment 12, and is provided with a plurality of connecting pipes 42 along the width of the refrigerator. Each of the plurality of connecting pipes 42 is adapted to the position of a drain pipe 41 of the cabinet 1 having a different width. One of the plurality of connecting pipes 42 that faces the position of the drain pipe 41 is used to connect to the drain pipe 41, and the evaporating dish 4 receives water drained from the drain pipe 41.

[0047] The evaporating dish 4 is provided with an insertion prevention baffle 43 in front of the plurality of connecting pipe sections 42. The insertion prevention baffle 43 is provided with limiting slots 431 that correspond one-to-one to the plurality of connecting pipe sections 42. The limiting slots 431 are used to fix the drain pipe 41, preventing the drain pipe 41 from shaking while increasing the supporting strength of the drain pipe 41.

[0048] 7 shows two connecting pipes 42, which are suitable for two storage units with different widths. In specific implementation, those skilled in the art can set the number of connecting pipes 42 as needed and use the connecting pipes 42 to accommodate storage units with different dimensions.

[0049] The projection of the drain pipe 41 on the bottom plate of the heat dissipation compartment 12 is a straight line along the front-to-rear direction of the cabinet 1, and the drain pipe 41 is inclined downward from front to rear, allowing water to drain into the evaporator tray 4 by gravity. The position of the drain pipe 41 relative to the cabinet 1 is determined according to the structure of the freezer compartment 13 and the position of the drain outlet of the freezer compartment 13. To facilitate drainage, the drain pipe 41 can be made as short as possible and placed close to the lateral center of the cabinet 1. To ensure smooth drainage, the drain angle of the drain pipe 41 may be an inclination of 5° or more.

[0050] Due to the relative positions of the freezer compartment 13 and the heat dissipation compartment 12, in order to save space, the front wall 53 of the heat dissipation compartment 12 extends from the center of the bottom plate of the cabinet at an upward incline from front to rear, and the drain pipe 41 is inclined downward from front to rear, but the angle between the drain pipe 41 and the plane of the front wall 53 of the heat dissipation compartment 12 is small, making it difficult to fix. To solve this problem, a water pipe fixing member 44 is added in this embodiment.

[0051] Fig. 8 is a diagram of the cooperative structure between drain pipe 41 and front wall 53 of heat dissipation compartment 12 in a refrigerator according to some embodiments of the present invention, Fig. 9 is a cross-sectional view along direction CC of the cooperative structure shown in Fig. 8, Fig. 10 is a local enlarged view of region D of the cooperative structure shown in Fig. 9, Fig. 11 is a schematic view of the cooperative structure between drain pipe 41 and water pipe fixing member 44 in a refrigerator according to some embodiments of the present invention at a certain angle, Fig. 12 is a schematic view of water pipe fixing member 44 in Fig. 11, Fig. 13 is a schematic view of the cooperative structure between drain pipe 41 and water pipe fixing member 44 in a refrigerator according to some embodiments of the present invention at another angle, and Fig. 14 is a schematic view of water pipe fixing member 44 in Fig. 13. Front wall 53 of heat dissipation compartment 12 is omitted in Figs. 11 to 13.

[0052] The front wall 53 of the heat dissipation compartment 12 is also called the bottom steel plate. When the freezer storage compartment 12 is closed, a foam space is formed between the front wall 53 of the heat dissipation compartment 12 and the cavity wall of the freezer compartment 13. A heat insulating layer is formed by filling this space with foam material. If the fixing is not secure, the drain pipe 41 may easily overflow into the heat dissipation compartment 12 when filling the foam material at the position where it passes through the front wall 53 of the heat dissipation compartment 12.

[0053] The water pipe fixing member 44 is disposed at a position where the drain pipe 41 passes through the front wall 53. The water pipe fixing member 44 is used to fix the drain pipe 41, and has a first fixing surface 441 that abuts against the front wall 53 of the heat dissipation compartment 12. The first fixing surface 441 may be the front surface of the water pipe fixing member 44, and as a whole, it forms close surface contact with the front wall 53, and by providing an acute angle, the problem of poor contact can be avoided.

[0054] A front-wall through-hole is provided in the front wall 53 of the heat dissipation compartment 12 at a position where the drain pipe 41 passes through. The shape of the front-wall through-hole matches the cross-sectional shape of the drain pipe 41 on the plane of the front wall 53 of the heat dissipation compartment 12. For example, in the case of a circular drain pipe 41, the shape of the front-wall through-hole is elliptical. The shape of the front-wall through-hole matches the cross-sectional shape of the drain pipe 41, thereby reducing the gap between the drain pipe 41 and the front wall 53.

[0055] The water pipe fixing member 44 has a pipe through hole 443 through which the drain pipe 41 passes, and the opening shape of the pipe through hole 443 formed in the first fixing surface 441 matches the shape of the front wall through hole. In other words, if the shape of the front wall through hole is elliptical, the opening shape of the pipe through hole 443 formed in the first fixing surface 441 is similarly elliptical.

[0056] A second fixing surface 442 is formed on the side of the water pipe fixing member 44 away from the first fixing surface 441. The second fixing surface 442 is perpendicular to the axial direction of the drain pipe 41, and the opening shape of the pipe through hole 443 formed in the second fixing surface 442 matches the cross section of the drain pipe 41. The second fixing surface 442 is perpendicular to the axial direction of the drain pipe 41 so that the drain pipe 41 passes perpendicularly through the second fixing surface 442, which allows the fixing mechanism of the drain pipe 41 to make surface contact with the second fixing surface 442 of the water pipe fixing member 44, avoiding the problem of poor contact. For example, in the case of a circular drain pipe 41, the opening shape of the pipe through hole 443 formed in the second fixing surface 442 is similarly circular.

[0057] The drain pipe 41 includes a first segment 411 and a second segment 412. A first end of the first segment 411 is connected to the bottom of the freezer compartment 12, and a second end of the first segment 411 passes through a pipe through-hole 443 to form a connecting pipe structure on the outer periphery. A pallet (support plate) 413 is formed at the first end of the first segment 411. The shape of the pallet 413 is the same as the shape of the bottom of the freezer compartment 12 and abuts against the bottom wall of the freezer compartment 12. This prevents the foam material from overflowing into the freezer compartment 12 and clogging the drain outlet during the foaming process.

[0058] The second segment 412 is connected to a second end of the first segment 411 and extends to the evaporating dish 4. The first segment 411 is a rigid pipe so as not to be compressed by the foam material, and at least a portion of the second segment 412 is a corrugated hose so as to have a certain amount of leeway for adjusting the length and position.

[0059] The connecting pipe structure may be a threaded structure. The refrigerator is provided with a corresponding fixing nut 45, which is detachably connected to the threaded structure and is used to fix the drain pipe 41 and the water pipe fixing member 44 by abutting an end of the fixing nut 45 against the second fixing surface 442.

[0060] The water pipe fixing member 44 improves the fixing surface of the fixing nut 45, and the fixing nut 45 can be screwed in freely, making it easy to operate and reliable.

[0061] The first segment 411 has a positioning rib (not shown) formed on its radial outer periphery along the axial direction, at least in the portion passing through the pipe through hole 443, and the pipe through hole 443 has a positioning groove 444 formed on its radial outer periphery that cooperates with the positioning rib, and the cooperation of the positioning rib and the positioning groove 444 restricts the first segment and prevents rotation of the drain pipe 41.

[0062] The opening of the pipe through hole 443 formed in the first fixed surface 441 is located in the center of the first fixed surface 441, and the first fixed surface 441 has areas around the opening that abut against the front wall 53 of the heat dissipation compartment 12, thereby closing the gap of the drain pipe 41 and preventing overflow.

[0063] A protrusion is formed on the front wall 53 of the heat dissipation compartment 12 in an area corresponding to the water pipe fixing member 44. The protrusion protrudes slightly toward the freezer compartment 13 to further prevent overflow in the drain pipe 41. The water pipe fixing member 44 is embedded in a recess on the back side of the protrusion, making it easy to attach the water pipe fixing member 44.

[0064] Although the technical solutions of the present invention have been described above in conjunction with the above-mentioned embodiments, those skilled in the art should understand that the protection scope of the present invention is not limited to these specific embodiments. As long as it does not deviate from the technical principle of the present invention, those skilled in the art can disassemble and combine the technical solutions in the above-mentioned embodiments, and make equivalent modifications or substitutions to the related technical features. Any modifications, equivalent substitutions, and improvements made within the technical idea and / or technical principle of the present invention shall all be included in the protection scope of the present invention.

Claims

1. A cabinet having a storage chamber defined therein and a freezing chamber formed at the bottom of the storage chamber for disposing an evaporator, wherein a heat dissipation compartment is formed at the rear of the lower part of the freezing chamber in the cabinet, and the front wall of the heat dissipation compartment extends from the center of the cabinet bottom plate at an upward incline from front to rear; an evaporating dish disposed within the heat dissipation compartment; a drain pipe that slopes downward from the bottom of the freezing chamber from front to rear, passes through the front wall of the heat dissipation compartment, and further extends to the evaporating dish, for discharging frost water in the freezing chamber into the evaporating dish; a water pipe fixing member disposed at a position where the drain pipe passes through the front wall, the water pipe fixing member being used to fix the drain pipe and having a first fixing surface abutting the front wall of the heat dissipation compartment; The water pipe fixing member has an integral structure and is disposed within the heat dissipation compartment, a second fixing surface of the water pipe fixing member, which is positioned back to back with the first fixing surface in the front-to-back direction, is formed perpendicular to the axial direction of the drain pipe, and the first fixing surface, which is the front surface of the water pipe fixing member, is not formed perpendicular to the axial direction of the drain pipe, and the refrigerator is provided with an inclined drain pipe at the bottom of the refrigerator.

2. a front wall through-hole is provided at a position on the front wall of the heat dissipation compartment through which the drain pipe passes, and the shape of the front wall through-hole is consistent with the cross-sectional shape of the drain pipe in the plane of the front wall of the heat dissipation compartment; 2. The refrigerator with an inclined drain pipe provided at a lower portion of the refrigerator according to claim 1, wherein the water pipe fixing member has a pipe through hole through which the drain pipe passes, and an opening shape of the pipe through hole formed on the first fixing surface matches a shape of the front wall through hole.

3. A refrigerator having an inclined drain pipe provided at the bottom of the refrigerator described in Claim 2, wherein the opening shape of the pipe through hole formed on the second fixed surface matches the cross section of the drain pipe.

4. The drain pipe is a first segment having a first end connected to the bottom of the freezing chamber and a second end passing through the pipe through-hole and having a connecting pipe structure formed on an outer periphery thereof; 4. The refrigerator according to claim 3, further comprising: a second segment connected to a second end of the first segment and extending to the evaporating dish.

5. 5. The refrigerator with an inclined drain pipe provided at a lower portion thereof according to claim 4, wherein the connecting pipe structure has a threaded structure, the refrigerator further comprises a fixing nut, the fixing nut being detachably connected to the threaded structure, an end of the fixing nut abutting the second fixing surface, and used to fix the drain pipe and the water pipe fixing member.

6. the first segment is a rigid pipe and at least a portion of the second segment is a corrugated hose; and / or 6. The refrigerator according to claim 4, wherein the inclination angle of the drain pipe is 5 degrees or more.

7. The first segment has a positioning rib formed along the axial direction on the radial outer periphery of at least a portion that passes through the pipe through hole, 6. A refrigerator with an inclined drain pipe provided at the bottom of the refrigerator as described in claim 4 or 5, wherein the pipe through-hole has a positioning groove formed on its radial outer periphery that cooperates with the positioning rib, and the first segment is limited by cooperation between the positioning rib and the positioning groove.

8. The refrigerator provided with an inclined drain pipe at a lower portion thereof according to any one of claims 2 to 5, wherein the opening of the pipe through hole formed in the first fixing surface is located at a center portion of the first fixing surface, and the first fixing surface has areas around the opening that abut against the front wall of the heat dissipation compartment.

9. 9. The refrigerator with an inclined drain pipe at the bottom of the refrigerator according to claim 8, wherein a protrusion is formed on the front wall of the heat dissipation compartment in an area corresponding to the water pipe fixing member, and the water pipe fixing member is embedded in a recess on the back side of the protrusion.

10. a blower assembly provided in a horizontally intermediate portion of the heat dissipation compartment, the blower assembly dividing the heat dissipation compartment into a first heat dissipation cavity and a second heat dissipation cavity along the horizontal direction of the cabinet, the blower assembly having a heat dissipation fan attached to a side facing the first heat dissipation cavity and a condenser disposed on a side facing the second heat dissipation cavity; a compressor mounted in the first heat dissipation cavity, The refrigerator with an inclined drain pipe provided at a lower portion thereof according to any one of claims 1 to 5, wherein the evaporating dish is attached within the second heat dissipation cavity.

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