Refrigerator

Abstract

The utility model provides a refrigerator which comprises an evaporator arranged in an evaporator cavity; the water pan assembly is arranged in the inner container, and the water pan assembly is located below the evaporator; a water pan drain hole for draining water out of the water pan assembly is formed in the water pan assembly; the water pan assembly comprises a water pan which comprises a water pan bottom plate; the heating piece is arranged below the water pan bottom plate; the first connecting plate is arranged below the heating piece, the first connecting plate is connected with the water receiving disc, and the heating piece is limited between the water receiving disc and the first connecting plate; the water pan assembly is arranged and comprises the heating piece, so that the water pan can melt ice blocks falling on the water pan, ice on the water pan can be melted, and ice blockage of a water outlet and a water drainage pipe of the water pan is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a refrigerator. Background Art

[0002] The refrigerator may include a box body, a door body and an evaporator. A storage cavity for storing items is formed in the box body. A return air port and an air outlet are formed on the box body. The evaporator is located in the box body. The air in the storage cavity flows from the return air port to the evaporator for heat exchange in the evaporator and flows from the air outlet to the storage cavity to provide cold air for the storage cavity.

[0003] When the evaporator provides cooling capacity, it will frost the evaporator, which will affect the heat exchange performance of the evaporator. The refrigerator is generally equipped with a heating device to defrost the evaporator. When the heating device defrosts the evaporator, water and ice will fall onto the water tray.

[0004] Since the heating device on the evaporator is at a certain distance from the water tray, the heating device cannot heat the water tray. Since the temperature at the evaporator is relatively low, the water and ice on the water tray are easily frozen, and the drainage holes on the water tray and the drainage pipe on the inner tank are blocked, making it difficult to drain. Therefore, the present application proposes a refrigerator. Summary of the invention

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, according to an embodiment of the present disclosure, a refrigerator is provided, comprising:

[0007] A box body, a box body opening is provided at the top thereof; a receiving cavity connected to the box body opening is formed in the box body; the box body comprises an outer shell and an inner liner, the inner liner is arranged in the outer shell, and an evaporator cavity is arranged in the inner liner;

[0008] A door body, used for opening or closing the box opening;

[0009] an evaporator, disposed in the evaporator cavity;

[0010] A fan is arranged in the inner tank;

[0011] an air return port, connecting the accommodating chamber with the evaporator chamber;

[0012] an air outlet, connecting the accommodating chamber with the evaporator chamber;

[0013] The fan rotates to make the air in the accommodating chamber flow to the evaporator chamber through the return air port to exchange heat with the first evaporator, and the air after heat exchange with the evaporator flows to the accommodating chamber through the air outlet;

[0014] A water receiving tray assembly is arranged in the inner tank, and the water receiving tray assembly is located below the evaporator; a water receiving tray drainage hole is formed on the water receiving tray assembly for draining water out of the water receiving tray assembly;

[0015] The water receiving tray assembly comprises:

[0016] A water tray, including a bottom plate of the water tray;

[0017] A heating element is arranged below the bottom plate of the water receiving tray;

[0018] The first connecting plate is disposed below the heating element. The first connecting plate is connected to the water receiving tray and the heating element is confined between the water receiving tray and the first connecting plate.

[0019] The water receiving tray assembly includes a heating element, which can enable the water receiving tray to melt ice cubes that fall on the water receiving tray, so that the ice on the water receiving tray can be melted, thereby avoiding ice blockage of the water receiving tray drain port and drain pipe.

[0020] According to an embodiment of the present disclosure, the first connecting plate and the water receiving tray form a heating sealing cavity for accommodating the heating plate, and the heating element is arranged in the heating sealing cavity, which can better protect the heating element and facilitate heat transfer.

[0021] According to an embodiment of the present disclosure, the heating element comprises:

[0022] A heating plate for heating;

[0023] The insulating layer is wrapped around the outer side of the heating plate to isolate electricity and avoid electric leakage.

[0024] According to an embodiment of the present disclosure, the heating plate is a PTC heating plate.

[0025] According to an embodiment of the present disclosure, it includes:

[0026] A control circuit board, used to control the operation of the refrigerator;

[0027] A heating plate power line has one end connected to the heating plate and the other end passing through the heating sealing cavity and connected to the control circuit board.

[0028] According to an embodiment of the present disclosure, a foaming layer is provided between the inner tank and the outer shell, and the power line of the heating plate passes through the foaming layer and is connected to the control circuit board.

[0029] According to an embodiment of the present disclosure, the inner liner has an inner liner first end and an inner liner second end which are arranged opposite to each other in the length direction of the box body, and the inner liner first end is provided with a step;

[0030] The step includes a step top plate and a step side plate;

[0031] One end of the step top plate away from the second end of the step is connected to a step side wall provided at the first end of the step;

[0032] One end of the step top plate close to the second end of the step is connected to the top end of the step side plate;

[0033] The evaporator is arranged on a side of the step side plate close to the second end of the step, and the step side plate is a side wall plate of the evaporator chamber.

[0034] According to an embodiment of the present disclosure, the water receiving tray comprises:

[0035] A first water receiving plate, located below the evaporator;

[0036] a fifth water receiving plate, located on a side of the first water receiving plate close to the step, wherein one end of the fifth water receiving plate close to the step is the bottom end of the fifth water receiving plate;

[0037] The drain outlet of the water receiving tray is located at the bottom end of the fifth water receiving tray, and the heating element is located below the fifth water receiving plate, which can heat the fifth water receiving plate used for diversion and located at the drain hole of the water receiving tray to avoid ice blockage in the drain hole of the water receiving tray.

[0038] According to an embodiment of the present disclosure, a drain pipe adapted to the drain hole of the water receiving tray is provided on the inner tank, and the drain pipe is arranged below the step top plate to facilitate the water in the water receiving tray to drain out of the water receiving tray and avoid ice blockage of the drain pipe.

[0039] According to an embodiment of the present disclosure, a refrigerator is also provided, comprising:

[0040] A box body, a box body opening is provided at the top thereof; a receiving cavity connected to the box body opening is formed in the box body; the box body comprises an outer shell and an inner liner, the inner liner is arranged in the outer shell, and an evaporator cavity is arranged in the inner liner;

[0041] A door body, used for opening or closing the box opening;

[0042] an evaporator, disposed in the evaporator cavity;

[0043] A fan is arranged in the inner tank;

[0044] an air return port, connecting the accommodating chamber with the evaporator chamber;

[0045] an air outlet, connecting the accommodating chamber with the evaporator chamber;

[0046] The fan rotates to make the air in the accommodating chamber flow to the evaporator chamber through the return air port to exchange heat with the first evaporator, and the air after heat exchange with the evaporator flows to the accommodating chamber through the air outlet;

[0047] The length direction of the evaporator is parallel to the front-rear direction of the box; the width direction of the evaporator and the length direction of the box are arranged at an acute angle;

[0048] A water receiving tray assembly is arranged in the inner tank, and the water receiving tray assembly is located below the evaporator; a water receiving tray drainage hole is formed on the water receiving tray assembly for draining water out of the water receiving tray assembly;

[0049] The water receiving tray assembly comprises:

[0050] A water tray, including a bottom plate of the water tray;

[0051] A heating element is arranged below the bottom plate of the water receiving tray;

[0052] The first connecting plate is disposed below the heating element. The first connecting plate is connected to the water receiving tray and the heating element is confined between the water receiving tray and the first connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 is a three-dimensional diagram of a horizontal freezer according to an embodiment of the present application;

[0054] Figure 2 It is a partial structural diagram of a horizontal freezer according to an embodiment of the present application;

[0055] Figure 3 is another partial structural diagram of a horizontal freezer according to an embodiment of the present application;

[0056] Figure 4 is another partial structural diagram of a horizontal freezer according to an embodiment of the present application;

[0057] Figure 5 is another partial structural diagram of a horizontal freezer according to an embodiment of the present application;

[0058] Figure 6 is a structural schematic diagram of a water tray assembly according to an embodiment of the present application;

[0059] Figure 7 is a partial cross-sectional view of a water tray assembly according to an embodiment of the present application;

[0060] Figure 8 yes Figure 7 The local structure diagram at A in the middle;

[0061] Fig. 9 is a partial structural diagram of a heating element according to an embodiment of the present application;

[0062] Fig.10 is another partial structural diagram of a horizontal freezer according to an embodiment of the present application;

[0063] Fig.11 is another partial structural diagram of a horizontal freezer according to an embodiment of the present application;

[0064] Fig.12 is another partial structural diagram of a horizontal freezer according to an embodiment of the present application;

[0065] Fig.13 is a schematic structural diagram of a water receiving tray according to an embodiment of the present application;

[0066] Fig.14 is a schematic diagram of a heat dissipation fin structure according to an embodiment of the present application;

[0067] Fig.15 yes Fig.14 The local structure diagram at B in the middle;

[0068] Fig.16 yes Fig.14 The local structure diagram at C in the middle;

[0069] Fig.17 It is a schematic diagram of the partial structure of a heating device according to an embodiment of the present application.

[0070] In the above figures: box body 1; box opening 101; accommodating chamber 102; return air outlet 103; air outlet 104; shell 11; liner 12; evaporator chamber 121; liner first end 122; liner second end 123; step 124; step top plate 1241; step side plate 1242; drain pipe 125; door body 2; evaporator 3; evaporator coil 31; heat dissipation fin 32; first fixing groove 321; second fixing groove 322; first limiting groove 323; first limiting card plate 324; second limiting groove 325; second limiting card plate 326; fan 4; water receiving tray assembly 5; water receiving tray 51; water receiving tray drain hole 511; water receiving tray The bottom plate 512 of the tray; the first water receiving plate 5121; the first water receiving surface 51211; the first supporting rib 51212; the second water receiving plate 5122; the second water receiving surface 51221; the third water receiving plate 5123; the third water receiving surface 51231; the fourth water receiving plate 5124; the fifth water receiving plate 5125; the heating element 52; the heating plate 521; the insulating layer 522; the first connecting plate 53; the heating sealing cavity 54; the heating plate power cord 61; the installation box 71; the heating device 8; the first heating part 81; the first heating straight pipe 811; the first heating curved pipe 812; the second heating part 82; the second heating straight pipe 821; the second heating curved pipe 822. DETAILED DESCRIPTION

[0071] In order to make the purpose and implementation method of the present application clearer, the exemplary implementation method of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0072] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0073] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0074] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0075] The present application proposes a refrigerator, which is described below with reference to the accompanying drawings.

[0076] In this application, reference is made to Figure 1-Figure 3 The refrigerator may include a box body 1 .

[0077] In the present application, the bottom to the top of the box may be the height direction of the box.

[0078] The box body may have a length direction. The length direction of the box body may be from one side end of the box body to the other side end of the box body.

[0079] The front end of the box body to the rear end of the box body can be the front-to-back direction of the box body. The width direction of the box body can be the front-to-back direction of the box body.

[0080] Among the height direction, front-back direction and length direction of the box body, two of them are perpendicular.

[0081] In this application, reference is made to Figure 1-Figure 3 A box opening 101 is provided at the top of the box 1.

[0082] In this application, reference is made to Figure 1-Figure 3 , a receiving chamber 102 may be provided in the box body. The receiving chamber 102 may be a space for placing items so that the refrigerator can freeze the items.

[0083] In the present application, the accommodating cavity 102 may be in communication with the box opening 101 .

[0084] The box opening 101 may be a placement opening for items, and the items may be placed in the accommodating cavity through the box opening.

[0085] In this application, reference is made to Figure 1-Figure 3 The refrigerator may include a door body 2. The door body 2 may be used to open or close the cabinet opening.

[0086] The door body 2 can be rotatably connected to the box body. The rear end of the door body 2 can be rotatably connected to the box body. The door body flips so that the door body switches from closing the box body opening to opening the box body opening.

[0087] When the door body 2 opens the box opening, the front end of the door body can gradually move backwards.

[0088] In this application, reference is made to Figure 1-Figure 3 The box body may include a shell 11.

[0089] The box body may include an inner liner 12. The inner liner 12 may be disposed in the outer shell.

[0090] In this application, reference is made to Figure 2-Figure 4 An evaporator chamber 121 may be provided in the inner tank 12 .

[0091] In this application, reference is made to Figure 2-Figure 4 , the refrigerator may include an evaporator 3. The evaporator 3 may be used for exchanging heat with air.

[0092] The evaporator 3 can be arranged in the inner container. The evaporator 3 can be arranged in the evaporator cavity 121.

[0093] In the present application, the length direction of the evaporator may be parallel to the front-rear direction of the housing.

[0094] In the present application, the width direction of the evaporator may be arranged at an acute angle to the length direction of the housing.

[0095] In the present application, the height direction of the evaporator may be arranged at an acute angle to the height direction of the housing.

[0096] In this application, reference is made to Figure 2-Figure 4 The refrigerator may include a fan 4. The fan 4 is used to provide power for the flow of air. The fan 4 may be arranged in the inner container.

[0097] In the present application, the fan 4 can be arranged at the front side or the rear side of the evaporator.

[0098] In this application, reference is made to Figure 3-Figure 5 The refrigerator may include a return air port 103. The return air port 103 is used to allow air in the receiving chamber to enter the evaporator chamber. The return air port may connect the receiving chamber with the evaporator chamber.

[0099] In this application, reference is made to Figure 3-Figure 5 The refrigerator may include an air outlet 104. The air outlet is used to allow the air in the evaporator cavity to enter the accommodating cavity.

[0100] The air outlet can connect the accommodating chamber with the evaporator chamber of the first heat exchanger.

[0101] In the present application, the fan rotates to make the air in the accommodating chamber flow to the evaporator chamber through the return air port to exchange heat with the evaporator, and the air after heat exchange with the evaporator flows to the accommodating chamber through the air outlet.

[0102] In the present application, the refrigerator may include a refrigeration system for supplying cold to the accommodating cavity.

[0103] The refrigeration system may include a compressor. The refrigeration system may include a condenser. The refrigeration system may include a throttling member.

[0104] The working process of the refrigeration system may include a compression process.

[0105] The compression process is as follows: the compressor starts working, low-temperature, low-pressure refrigerant is sucked into the compressor, compressed into high-temperature, high-pressure superheated gas in the compressor cylinder, and then discharged into the condenser.

[0106] The working process of the refrigeration system may include a condensation process.

[0107] The condensation process is as follows: the high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, the temperature continues to drop, and it is gradually cooled to a saturated vapor at room temperature and high pressure, and further cooled to a saturated liquid. The temperature no longer drops. The temperature at this time is called the condensation temperature. The pressure of the refrigerant remains almost unchanged during the entire condensation process.

[0108] The working process of the refrigeration system may include a throttling process.

[0109] The throttling process is as follows: the condensed refrigerant saturated liquid passes through a drying filter to remove moisture and impurities and then flows into the throttling device, through which throttling and pressure reduction are performed, and the refrigerant becomes wet steam at room temperature and low pressure.

[0110] The working process of the refrigeration system may include an evaporation process.

[0111] The evaporation process is as follows: wet steam at room temperature and low pressure begins to absorb heat and vaporize in the evaporator, which not only reduces the temperature of the evaporator and its surroundings, but also turns the refrigerant into a low-temperature, low-pressure gas. The refrigerant coming out of the evaporator passes through the gas-liquid separator and returns to the compressor again, repeating the above process to transfer the heat in the freezer to the air outside the freezer, thus achieving the purpose of refrigeration.

[0112] In the present application, a compressor cavity may be formed in the box body, and the compressor is arranged in the compressor cavity.

[0113] The compressor chamber can be arranged in the outer shell. The compressor chamber can be arranged outside the inner tank.

[0114] In this application, reference is made to Figure 6-Figure 8 The refrigerator may include a water receiving tray assembly 5. The water receiving tray assembly 5 may be arranged in the inner container. The water receiving tray assembly 5 may be arranged below the evaporator to receive the condensed water flowing down from the evaporator.

[0115] In the present application, a water tray drain hole 511 for draining water out of the water tray assembly is formed on the water tray assembly.

[0116] In this application, reference is made to Figure 6-Figure 8 The water receiving tray assembly may include a water receiving tray 51. The water receiving tray 51 may be disposed below the evaporator to receive condensed water flowing down from the evaporator.

[0117] In the present application, the water receiving tray 51 may include a water receiving tray bottom plate 512 .

[0118] In this application, reference is made to Figure 6-Figure 8 The water receiving tray assembly may include a heating element 52. The heating element 52 may be disposed below the bottom plate 512 of the water receiving tray.

[0119] In this application, reference is made to Figure 6-Figure 8 The water receiving tray assembly may include a first connecting plate 53. The first connecting plate 53 may be disposed below the heating element. The first connecting plate 53 may be connected to the water receiving tray. The first connecting plate 53 may confine the heating element between the water receiving tray and the first connecting plate.

[0120] The water receiving tray assembly includes a heating element, which can enable the water receiving tray to melt ice cubes that fall on the water receiving tray, so that the ice on the water receiving tray can be melted, thereby avoiding ice blockage of the water receiving tray drain port and drain pipe.

[0121] In the present application, the first connecting plate and the water receiving tray form a heating sealed cavity 54 for accommodating the heating plate. The heating element can be arranged in the heating sealed cavity, which can better protect the heating element and facilitate heat transfer.

[0122] In the present application, the first connecting plate and the water receiving tray can be connected by welding.

[0123] In this application, reference is made to Figure 6-Figure 8 The heating element 52 may include a heating plate 521. The heating plate 521 is used for heating.

[0124] In this application, reference is made to Figure 6-Figure 8 The heating element 52 may include an insulating layer 522. The insulating layer 522 may be wrapped around the outside of the heating plate to insulate electricity and prevent leakage.

[0125] In the present application, the water receiving tray may be a sheet metal part. The water receiving tray may be an aluminum plate.

[0126] In the present application, the first connecting member may be a sheet metal member or an aluminum plate.

[0127] In the present application, the heating plate may be a PTC heating plate.

[0128] In the present application, the refrigerator may include a control circuit board, which is used to control the operation of the refrigerator.

[0129] In this application, reference is made to Figure 7-Figure 9 The refrigerator may include a heating plate power line 61. One end of the heating plate power line is connected to the heating plate. The other end of the heating plate power line passes through the heating sealing cavity and is connected to the control circuit board.

[0130] In the present application, a foam layer is provided between the inner container and the outer shell, and the heating plate power line 61 passes through the foam layer and is connected to the control circuit board.

[0131] In the present application, the inner container has an inner container first end 122 and an inner container second end 123 which are arranged opposite to each other in the length direction of the box body.

[0132] In this application, reference is made to Figure 10-11 A step 124 is provided at the first end of the inner container.

[0133] In this application, reference is made to Figure 10-11 , the step may include a step top plate 1241. The step may include a step side plate 1242.

[0134] In the present application, the compressor chamber may be located below the step top plate and on a side of the step side plate close to the first end of the inner tank.

[0135] In the present application, one end of the step top plate away from the second end of the step can be connected to the step side wall arranged at the first end of the step.

[0136] One end of the step top plate close to the second end of the step can be connected to the top end of the step side plate.

[0137] The evaporator can be arranged on one side of the step side plate close to the second end of the step. The step side plate can be a side wall plate of the evaporator chamber.

[0138] In the present application, the width direction of the evaporator can be set at an acute angle with the length direction of the box body, and the side of the bottom end of the evaporator close to the step is lower than the side of the bottom end of the evaporator away from the step.

[0139] In this application, reference is made to Figure 10-11The inner tank is provided with a drain pipe 125 adapted to the drain hole of the water receiving tray. The drain pipe 125 is arranged below the step top plate. The drain pipe is used to lead the condensed water in the inner tank of the water receiving tray to the outside of the inner tank.

[0140] In the present application, in the height direction of the cabinet, the evaporator is not higher than the step top plate.

[0141] In this application, reference is made to Fig.12 The evaporator 3 may include an evaporator coil 31 .

[0142] In this application, reference is made to Fig.12 The evaporator 3 may include heat dissipation fins 32. The heat dissipation fins 32 may be sleeved on the evaporator coil.

[0143] In the present application, there may be a plurality of heat dissipation fins, and the plurality of heat dissipation fins may be sequentially spaced apart along the width direction of the evaporator.

[0144] In the present application, a plurality of heat dissipation fins may be evenly spaced along the width direction of the evaporator, and the interval between two adjacent heat dissipation fins is a constant value.

[0145] In this application, reference is made to Fig.13 The water receiving tray bottom plate 512 may include a first water receiving plate 5121. The first water receiving plate 5121 may be located below the evaporator.

[0146] In this application, reference is made to Fig.13 The first water receiving plate may include a first water receiving surface 51211 disposed on the top thereof. The first water receiving surface may be disposed on a side of the first water receiving plate close to the evaporator.

[0147] In the present application, the first water receiving surface can be arranged horizontally along the front-rear direction of the box body.

[0148] In the present application, the first water receiving surface can be inclined along the front-rear direction of the box body.

[0149] In the present application, the first water receiving surface may be inclined along the length direction of the box body, and the inclination direction of the first water receiving surface is the same as the inclination direction of the evaporator.

[0150] In the present application, along the length direction of the box body, the drainage hole of the water receiving tray is arranged on the side of the bottom end of the first water receiving surface away from the top end of the first water receiving surface, so as to facilitate receiving and collecting water.

[0151] In this application, reference is made to Fig.13 The first water receiving plate may be provided with a first supporting rib 51212. The first supporting rib 51212 may be provided on a side of the first water receiving plate close to the evaporator.

[0152] In the present application, a plurality of first support ribs may be provided on the top of the first water receiving plate, and the plurality of first support ribs are arranged at intervals along the front-to-back direction of the box body to avoid blocking the drainage and make the drainage smooth, and the first support ribs can block the air from flowing from the bottom of the evaporator to the fan, so that the air passes through the evaporator, thereby improving the heat exchange efficiency.

[0153] In the present application, a partial plate body of the first water receiving plate may be recessed toward the side close to the evaporator to form a first recess located on the side of the first water receiving plate away from the evaporator and a first supporting rib located on the side of the first water receiving plate close to the evaporator.

[0154] In this application, reference is made to Fig.13 , the water receiving tray bottom plate may include a second water receiving plate 5122. The second water receiving plate 5122 has a second water receiving surface 51221 located at the top thereof.

[0155] In this application, reference is made to Fig.13 The water receiving tray bottom plate 512 may include a third water receiving plate 5123. The second water receiving plate 5123 has a third water receiving surface 51231 located at the top thereof.

[0156] In the present application, the second water receiving plate may be arranged in front of the third water receiving plate. The first water receiving plate may be located between the second water receiving plate and the third water receiving plate.

[0157] In the present application, the second water receiving surface 51221 is an inclined surface. The front end of the second water receiving surface is higher than the rear end. The end of the second water receiving surface close to the step is lower than the end of the second water receiving surface away from the step.

[0158] In the present application, the third water receiving surface 51231 is an inclined surface. The front end of the third water receiving surface is lower than the rear end. The end of the third water receiving surface close to the step is lower than the end of the third water receiving surface away from the step.

[0159] In this application, reference is made to Fig.13 The water receiving tray bottom plate 512 may include a fourth water receiving plate 5124. The fourth water receiving plate 5124 may be located on a side of the first water receiving plate close to the step.

[0160] In the present application, the fourth water receiving plate 5124 may be located between the second water receiving plate and the third water receiving plate.

[0161] In this application, reference is made to Fig.13 The water receiving tray bottom plate 512 may include a fifth water receiving plate 5125. The fifth water receiving plate 516 may be located on a side of the fourth water receiving plate close to the step. The fifth water receiving plate 5125 may be located on a side of the first water receiving plate close to the step.

[0162] In the present application, the end of the fifth water receiving plate close to the step is the bottom end of the fifth water receiving plate. The water receiving tray drain outlet can be arranged at the bottom end of the fifth water receiving plate.

[0163] In this application, reference is made to Fig.13 , the fifth water receiving plate 5125 can be located between the second water receiving plate and the third water receiving plate.

[0164] In the present application, the heating element can be arranged below the fifth water receiving plate, and can heat the fifth water receiving plate used for diversion and located at the drainage hole of the water receiving tray, so as to prevent the drainage hole of the water receiving tray from being blocked by ice.

[0165] In the present application, the refrigerator may include a mounting box 71. The mounting box is connected to the inner container to define an evaporator chamber.

[0166] In the present application, the refrigerator may include a thermal insulation member. The thermal insulation member is located in the evaporator cavity. The thermal insulation member is located above the evaporator. The installation box may be covered on the outside of the thermal insulation member.

[0167] In this application, reference is made to Fig.17 , the refrigerator may include a heating device 8. The heating device 8 may be used to defrost the evaporator.

[0168] In the present application, the heating device may be an electric heating device.

[0169] In this application, reference is made to Fig.17 The heating device 8 may include a first heating part 81. The first heating part 81 may be connected to the heat dissipation fins. The first heating part 81 may be located at the top of the evaporator.

[0170] In this application, reference is made to Fig.17 The heating device 8 may include a second heating portion 82. The second heating portion 82 may be connected to the heat dissipation fins. The second heating portion 82 may be located at the bottom end of the evaporator.

[0171] In this application, reference is made to Figure 14-16 The top of the heat dissipation fin is formed with a first fixing groove 321 with a top opening. The first heating part is clamped in the first fixing groove through the top opening of the first fixing groove.

[0172] In this application, reference is made to Figure 14-16 The bottom end of the heat dissipation fin is formed with a second fixing groove 322 with a bottom opening. The second heating part is clamped in the second fixing groove through the bottom opening of the second fixing groove.

[0173] In this application, reference is made to Figure 14-16 The top of the heat dissipation fin is formed with a first limiting groove 323 with an open top. A first limiting clamping plate 324 is formed between the first limiting groove 323 and the first fixing groove. The first limiting clamping plate clamps the first heating part in the first fixing groove.

[0174] In the present application, a first fixing groove may have a first limiting clamping plate.

[0175] In the present application, a first fixing slot may have two first limit clamping plates, and the two first limit clamping plates are respectively located on both sides of the first fixing slot.

[0176] In this application, reference is made to Figure 14-16 The bottom end of the heat dissipation fin is formed with a second limit groove 325 with a bottom end opening. A second limit clamping plate 326 is formed between the second limit groove 325 and the second fixing groove. The second limit clamping plate clamps the second heating part in the second fixing groove.

[0177] In the present application, a second fixing groove may have a second limiting clamping plate.

[0178] In the present application, a second fixing slot may have two second limiting clamping plates, and the two second limiting clamping plates are respectively located on both sides of the second fixing slot.

[0179] In the present application, the first heating part may be a heating wire coil.

[0180] In this application, reference is made to Fig.17 The first heating part may include a first heating straight tube 811.

[0181] In the present application, there may be a plurality of first straight heating tubes 811. The plurality of first straight heating tubes may be arranged in sequence and spaced apart.

[0182] In the present application, a plurality of first heating straight tubes may be arranged in sequence at even intervals.

[0183] In the present application, the first heating straight tube may be arranged along the width direction of the evaporator.

[0184] In the present application, a plurality of first heating straight tubes may be arranged in sequence and spaced apart along the length direction of the evaporator.

[0185] In this application, reference is made to Fig.17 The first heating part may include a first heating elbow 812. The first heating elbow 812 may be connected between two adjacent first heating straight pipes. There are a plurality of first heating elbows.

[0186] A plurality of first heating bent pipes connect a plurality of first heating straight pipes in sequence to form a layer of first heating parts.

[0187] In the present application, the first heating straight pipe is clamped in the first fixing groove.

[0188] In the present application, the second heating part may be a heating wire coil.

[0189] In this application, reference is made to Fig.17 The second heating part 82 may include a second heating straight tube 821 .

[0190] In the present application, there may be a plurality of second heating straight tubes 821. The plurality of second heating straight tubes may be arranged in sequence and spaced apart.

[0191] In the present application, a plurality of second heating straight tubes may be arranged in sequence at even intervals.

[0192] In the present application, the second heating straight tube may be arranged along the first direction.

[0193] In the present application, a plurality of second heating straight tubes may be sequentially arranged at intervals along the second direction.

[0194] In this application, reference is made to Fig.17 The second heating part may include a second heating elbow 822. The second heating elbow 822 may be connected between two adjacent second heating straight pipes. There are a plurality of second heating elbows.

[0195] A plurality of second heating bent pipes connect a plurality of second heating straight pipes in sequence to form a layer of second heating parts.

[0196] In the present application, the second heating straight pipe is clamped in the second fixing groove.

[0197] In the present application, the first heating part may be in contact with the water receiving tray, which can improve the defrosting effect of the water receiving tray.

[0198] In the present application, the first supporting rib may be in contact with the first heating part.

[0199] In the present application, the first supporting rib may have a gap with the first heating part.

[0200] In the present application, the refrigerator may include a defrost sensor. The defrost sensor may be located on the evaporator.

[0201] In the present application, the control circuit board receives the real-time defrost temperature value detected by the defrost sensor.

[0202] When the defrosting real-time temperature reaches the preset temperature or the defrosting time reaches the preset time, defrosting begins, the heating device starts, and the first heating part and the second heating part heat the evaporator to defrost. The ice on the evaporator surface melts, and large ice cubes fall onto the water tray during this process.

[0203] After the heating device is started for the first time, the heating element is started to heat the fifth water receiving plate.

[0204] After defrosting is completed, turn off the heating device, and then turn off the heating element a second time after turning off the heating device to ensure that the ice in the water tray is completely melted to prevent the ice from blocking the water tray drain hole and drain pipe.

[0205] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0206] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: include: A box body, a box body opening is provided at the top thereof; a receiving cavity connected to the box body opening is formed in the box body; the box body comprises an outer shell and an inner liner, the inner liner is arranged in the outer shell, and an evaporator cavity is arranged in the inner liner; A door body, used for opening or closing the box opening; an evaporator, disposed in the evaporator cavity; A fan is arranged in the inner tank; an air return port, connecting the accommodating chamber with the evaporator chamber; an air outlet, connecting the accommodating chamber with the evaporator chamber; The fan rotates to make the air in the accommodating chamber flow to the evaporator chamber through the return air port to exchange heat with the evaporator, and the air after heat exchange with the evaporator flows to the accommodating chamber through the air outlet; A water receiving tray assembly is arranged in the inner tank, and the water receiving tray assembly is located below the evaporator; a water receiving tray drainage hole is formed on the water receiving tray assembly for draining water out of the water receiving tray assembly; The water receiving tray assembly comprises: A water tray, including a bottom plate of the water tray; A heating element is arranged below the bottom plate of the water receiving tray; The first connecting plate is disposed below the heating element. The first connecting plate is connected to the water receiving tray and the heating element is confined between the water receiving tray and the first connecting plate.

2. The refrigerator according to claim 1, characterized in that: The first connecting plate and the water receiving tray form a heating sealing cavity for accommodating the heating element, and the heating element is arranged in the heating sealing cavity.

3. The refrigerator according to claim 2, characterized in that: The heating element comprises: A heating plate for heating; An insulating layer is wrapped around the outside of the heating plate for electrical insulation.

4. The refrigerator according to claim 3, characterized in that: The heating plate is a PTC heating plate.

5. The refrigerator according to claim 3, characterized in that: include: A control circuit board, used to control the operation of the refrigerator; A heating plate power line has one end connected to the heating plate and the other end passing through the heating sealing cavity and connected to the control circuit board.

6. The refrigerator according to claim 5, characterized in that: A foaming layer is provided between the inner container and the outer shell, and the power line of the heating plate passes through the foaming layer and is connected to the control circuit board.

7. The refrigerator according to claim 1 or 2, characterized in that: The inner container has an inner container first end and an inner container second end which are arranged opposite to each other in the length direction of the box body, and the inner container first end is provided with a step; The step includes a step top plate and a step side plate; One end of the step top plate away from the second end of the step is connected to a step side wall provided at the first end of the step; One end of the step top plate close to the second end of the step is connected to the top end of the step side plate; The evaporator is arranged on a side of the step side plate close to the second end of the step, and the step side plate is a side wall plate of the evaporator chamber.

8. The refrigerator according to claim 7, characterized in that: The water receiving tray comprises: A first water receiving plate, located below the evaporator; a fifth water receiving plate, located on a side of the first water receiving plate close to the step, wherein one end of the fifth water receiving plate close to the step is the bottom end of the fifth water receiving plate; The water receiving tray drain port is located at the bottom end of the fifth water receiving plate, and the heating element is located below the fifth water receiving plate.

9. The refrigerator according to claim 7, characterized in that: The inner tank is provided with a drainage pipe adapted to the drainage hole of the water receiving tray, and the drainage pipe is arranged below the step top plate.

10. A refrigerator, characterized in that: include: A box body, a box body opening is provided at the top thereof; a receiving cavity connected to the box body opening is formed in the box body; the box body comprises an outer shell and an inner liner, the inner liner is arranged in the outer shell, and an evaporator cavity is arranged in the inner liner; A door body, used for opening or closing the box opening; an evaporator, disposed in the evaporator cavity; A fan is arranged in the inner tank; an air return port, connecting the accommodating chamber with the evaporator chamber; an air outlet, connecting the accommodating chamber with the evaporator chamber; The fan rotates to make the air in the accommodating chamber flow to the evaporator chamber through the return air port to exchange heat with the evaporator, and the air after heat exchange with the evaporator flows to the accommodating chamber through the air outlet; The length direction of the evaporator is parallel to the front-rear direction of the box; the width direction of the evaporator and the length direction of the box are arranged at an acute angle; A water receiving tray assembly is arranged in the inner tank, and the water receiving tray assembly is located below the evaporator; a water receiving tray drainage hole is formed on the water receiving tray assembly for draining water out of the water receiving tray assembly; The water receiving tray assembly comprises: A water tray, including a bottom plate of the water tray; A heating element is arranged below the bottom plate of the water receiving tray; The first connecting plate is disposed below the heating element. The first connecting plate is connected to the water receiving tray and the heating element is confined between the water receiving tray and the first connecting plate.

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