Refrigerating and heating mechanism for a refrigerator

Abstract

The present application relates to the technical field of refrigerator, and more particularly to a refrigerating and heating mechanism of refrigerator, comprising a drawer unit, a mounting unit and an auxiliary unit, the drawer unit comprises a box door, a first box body arranged at the back side of the box door, a water bath assembly arranged in the first box body, and a second box body arranged at the back side of the first box body; the mounting unit comprises a box body arranged outside the first box body and the second box body, and a air cooling assembly arranged at one side in the box body for cooling the inside of the first box body; and the auxiliary unit comprises a heating assembly arranged at the bottom of the box body for heating the first box body, a supporting plate arranged at the back side of the heating assembly, and a refrigerating assembly arranged at the top of the supporting plate for cooling the top of the first box body and the second box body, the refrigerating and heating mechanism of the refrigerator realizes the switching of food refrigeration and heating, and can prepare breakfast more quickly.

Description

Technical Field

[0001] This invention relates to the technical field of refrigerators, and more particularly to a refrigeration and heating mechanism for a refrigerator. Background Technology

[0002] Typically, a refrigerator is a device that supplies cold air generated by a refrigeration cycle to the storage compartment to keep the food stored in the compartment at a frozen, slightly below, or slightly above freezing temperature. The refrigeration cycle consists of, for example, a compressor, a condenser, an expansion valve, and an evaporator.

[0003] With the fast pace of life, people have higher demands for the efficiency of breakfast preparation. People want breakfast food to be refrigerated and ready to be heated in advance when needed, but existing refrigerators generally only have refrigeration and preservation functions and do not have heating functions, which cannot meet people's needs. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the fact that existing refrigerators generally only have the function of refrigeration and preservation and do not have the function of heating, this invention is proposed.

[0006] Therefore, the object of the present invention is to provide a refrigeration and heating mechanism for a refrigerator.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a refrigeration and heating mechanism for a refrigerator, comprising,

[0008] The drawer unit includes a door, a first box body disposed on the rear side of the door, a water bath assembly disposed in the first box body, and a second box body disposed on the rear side of the first box body.

[0009] The mounting unit includes a housing disposed outside the first box and the second box, and an air-cooling component disposed on one side of the housing for cooling the interior of the first box; and,

[0010] The auxiliary unit includes a heating component disposed at the bottom of the box for heating the first box, a support plate disposed at the rear of the heating component, and a refrigeration component disposed at the top of the support plate for cooling the top of the first box and the second box.

[0011] As a preferred embodiment of the refrigeration and heating mechanism of the refrigerator of the present invention, the water bath assembly includes a plurality of mounting cavities disposed inside the first box body, an inner liner disposed inside the mounting cavity, a water bath cavity disposed inside the inner liner, a water inlet disposed at the top of the inner liner, and internal air outlets disposed at both ends of the upper side of the inner liner.

[0012] As a preferred embodiment of the refrigeration and heating mechanism of the refrigerator of the present invention, wherein: a cooling cavity is formed inside the first box body, and the inner air outlet is connected to the cooling cavity; a first desiccant filter is provided on one side of the first box body, and an outer air inlet is provided on the other side of the first box body.

[0013] As a preferred embodiment of the refrigeration and heating mechanism of the refrigerator described in this invention, the air-cooling component includes an air-cooling box disposed on one side of the cabinet body, an intake fan and an exhaust fan disposed within the air-cooling box, and a second de-mist filter disposed on the air-cooling box and disposed opposite to the first de-mist filter.

[0014] As a preferred embodiment of the refrigeration and heating mechanism of the refrigerator of the present invention, the rear end of the air-cooled box is connected to a cold air pipe, the front end of the air-cooled box is provided with an air outlet, a hidden air outlet is provided at the bottom of one side of the door, and the upper end of the hidden air outlet is opposite to the air outlet. An external air inlet pipe for communicating with the external air inlet is provided on one side of the box body.

[0015] As a preferred embodiment of the refrigeration and heating mechanism of the refrigerator of the present invention, the heating component includes a first device box and a second device box disposed at the bottom of the cabinet, a sealing plate disposed at the front side of the first device box and the second device box, a moving component disposed in the first device box, a motor disposed in the second device box for driving the moving component, a heat-conducting plate disposed above the first device box and connected to the sealing plate, and a heat insulation plate disposed at the rear side of the heat-conducting plate.

[0016] In a preferred embodiment of the refrigeration and heating mechanism of the refrigerator of the present invention, the moving component includes a lead screw connected to the motor, a positioning block disposed in the middle of the lead screw, moving blocks symmetrically disposed on both sides of the lead screw, a lifting plate disposed on the top of the positioning block and the moving block, and a plurality of heating plates disposed on the top front side of the lifting plate. An elastic telescopic column is disposed between the bottom middle of the lifting plate and the positioning block. Rotating rods are rotatably disposed between the bottom two sides of the lifting plate and the two positioning blocks respectively. The middle part of the lead screw is set as a smooth rod, and the thread directions on both sides of the lead screw are opposite.

[0017] As a preferred embodiment of the refrigeration and heating mechanism of the refrigerator of the present invention, the refrigeration component includes a cooling plate disposed above the lifting plate, an evaporator tube disposed inside the cooling plate, connecting hoses disposed on both sides of the cooling plate for communicating with the evaporator tube, a heat insulation component disposed at the bottom of the cooling plate, and a retractable component for driving the heat insulation component to move.

[0018] In a preferred embodiment of the refrigeration and heating mechanism of the refrigerator of the present invention, the heat insulation component includes a rotating shaft respectively disposed on both sides inside the cooling plate, a rope winding disc disposed at both ends inside one of the rotating shafts, heat insulation cotton disposed on the shaft of the other rotating shaft, and a connecting rope connecting the rope winding disc and the heat insulation cotton. The bottom sides of the cooling plate are symmetrically provided with slots for the connecting rope and the heat insulation cotton to pass through, and the other two sides of the bottom of the cooling plate are symmetrically provided with rope grooves for guiding the connecting rope.

[0019] As a preferred embodiment of the refrigeration and heating mechanism of the refrigerator of the present invention, the retracting component includes a first pulley respectively disposed at both ends of the outer side of the rotating shaft, a second pulley respectively disposed at both ends of the lead screw, a first pull rope disposed between the first pulley at one end of the rotating shaft and the second pulley on the same side, and a second pull rope disposed between the first pulley at the other end of the rotating shaft and the second pulley on the same side.

[0020] The beneficial effects of this invention are as follows: Users can place food and a small amount of water into different inner containers the night before. The cooling air is introduced into the air-cooled cavity of the first container through the cooperation of the cooling pipe and the intake fan. The cooling plate is then lowered so that its cover is on top of the first and second containers, achieving food refrigeration. The next morning, according to a set time, the lifting plate can be raised until the heating plate contacts the heat-conducting plate, heating the water in the inner container's water bath cavity and the inner container's holding cavity, achieving a double-layer water bath heating effect to heat the food. Excess gas generated during heating is then discharged through the exhaust fan, thus realizing the switching between food refrigeration and heating, allowing for faster preparation of breakfast and other meals. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the refrigeration and heating mechanism of the refrigerator of the present invention.

[0023] Figure 2 This is a schematic diagram of the drawer unit structure of the refrigeration and heating mechanism of the refrigerator of the present invention.

[0024] Figure 3 This is a schematic diagram of the installation unit and auxiliary unit structure of the refrigeration and heating mechanism of the refrigerator of the present invention.

[0025] Figure 4 This is a schematic diagram of the installation unit structure of the refrigeration and heating mechanism of the refrigerator of the present invention.

[0026] Figure 5 This is a schematic diagram of the auxiliary unit structure of the refrigeration and heating mechanism of the refrigerator of the present invention.

[0027] Figure 6 This is a bottom view schematic diagram of the cooling plate structure of the refrigeration and heating mechanism of the refrigerator of the present invention.

[0028] Figure 7 This is a schematic diagram of the internal structure of the cooling plate of the refrigerator's refrigeration and heating mechanism according to the present invention. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0033] Example 1

[0034] Reference Figure 1 This is the first embodiment of the present invention, which provides a refrigeration and heating mechanism for a refrigerator.

[0035] The refrigerator includes a drawer unit 100, comprising a door 101, a first box 102 disposed behind the door 101, a water bath assembly 103 disposed inside the first box 102, and a second box 104 disposed behind the first box 102. The door 101 has a groove at its upper end for pulling. The first box 102 and the second box 104 are detachable. The first box 102 is used for refrigerating and heating food, and the second box 104 is a refrigerator compartment inside the refrigerator. The mounting unit 200 includes a housing 201 disposed outside the first box 102 and the second box 104, and a fan-cooled assembly 202 disposed inside the housing 201 for cooling the interior of the first box 102. The first box 102 and the second box 104 are detachable. The bottom of each box 104 is equipped with a sliding rail, allowing it to be pulled out from inside the box 201. Evaporators are installed on the rear and side walls of the box 201 for refrigerating the second box 104. An auxiliary unit 300 includes a heating component 301 installed at the bottom of the box 201 for heating the water bath component 103, a support plate 302 installed on one side of the heating component 301, and a refrigeration component 303 installed on the top side of the support plate 302 for cooling the top of the first box 102. The auxiliary unit 300 is located inside the box 201, and the first box 102 and the second box 104 are installed within the auxiliary unit 300. A guide rail is installed on the inner side of the support plate 302, and ball bearings are installed on the rear side of the second box 104 for sliding along the guide rail.

[0036] During use, food is placed into the first box 102, and the food is refrigerated by the air-cooling component 202 and the refrigeration component 303, and heated by the water bath component 103, thus realizing the switching between food refrigeration and heating, which can make breakfast and other preparations more convenient.

[0037] Example 2

[0038] Reference Figures 1-3This is a second embodiment of the present invention, which differs from the first embodiment in that: the water bath assembly 103 includes multiple mounting cavities 103a disposed inside the first housing 102, an inner liner 103b disposed within the mounting cavities 103a, a water bath cavity disposed inside the inner liner 103b, a water inlet 103c disposed at the top of the inner liner 103b, and internal air outlets 103d respectively disposed at both ends of the upper side of the inner liner 103b, wherein the water inlet 103c allows water to be supplied to the inner liner 103b. Water is added to the water bath cavity, which serves as a water bath heating method when the inner liner 103b is heated. At the same time, when foods such as milk or eggs are placed in the inner liner 103b, a small amount of water can be added to the inner liner 103b cavity. During heating, the inner liner 103b cavity also undergoes water bath heating, achieving a double-layer water bath heating effect, which results in faster heating. The internal vent 103d facilitates the dissipation of hot air from the inner liner 103b cavity and the inner liner 103b water bath cavity.

[0039] Furthermore, a cooling chamber is formed inside the first box 102, and the inner air outlet 103d is connected to the cooling chamber. A first de-mist filter 102a is provided on one side of the first box 102, and an external air inlet is provided on the other side of the first box 102. When the inner liner 103b is heated, the generated water vapor enters the cooling chamber through the inner air outlet 103d, which facilitates its subsequent dissipation.

[0040] The remaining structure is the same as that in Example 1.

[0041] During use, users can place food and a small amount of water into different inner pots 103b the night before. The next morning, the water in the water bath cavity and the container cavity of the inner pot 103b can be heated according to the set time, which plays the role of double-layer water bath heating and realizes rapid heating of food.

[0042] Example 3

[0043] Reference Figure 4 and Figure 5 This is the third embodiment of the present invention, which differs from the second embodiment in that: the air-cooled assembly 202 includes an air-cooled box 202a disposed on one side inside the housing 201, an intake fan 202b and an exhaust fan 202c disposed inside the air-cooled box 202a, and a third de-mist filter disposed on the air-cooled box 202a and opposite to the second de-mist filter 202d. When the first housing 102 is installed inside the housing 201, the first de-mist filter 102a and the second de-mist filter 202d are positioned opposite each other. The intake fan 202b can introduce cold air into the air-cooled cavity of the first housing 102, and the exhaust fan 202c can extract water vapor and hot air from the air-cooled cavity to facilitate heat dissipation.

[0044] Furthermore, the rear end of the air-cooled box 202a is connected to a cold air pipe 202e, and the front end of the air-cooled box 202a is provided with an exhaust vent 202f. A hidden exhaust vent 101a is provided at the bottom of one side of the door 101, and the upper end of the hidden exhaust vent 101a is positioned opposite to the exhaust vent 202f. An external air intake pipe 201a is provided on one side of the cabinet 201 for connecting with the external air intake. An intake valve is provided on the external air intake pipe 201a. The cold air pipe 202e is connected to the refrigerator's cooling system. The pipes are connected, and a cold air connection valve is installed on the cold air pipe 202e. An exhaust valve is installed at the bottom of the concealed air outlet 101a. The pressure is automatically released before the heating ends. When heat dissipation is required, the air inlet valve, the cold air connection valve, and the exhaust valve are opened. The air inlet fan 202b introduces cold air into the air-cooled cavity. The exhaust fan 202c draws external cold air into the air-cooled cavity and discharges it from the concealed air outlet 101a, which quickly dissipates heat from the first box 102 and restores it to a refrigerated state.

[0045] The remaining structure is the same as that in Example 2.

[0046] During use, the first box 102 is pushed into the cabinet 201, and cold air is introduced into the air-cooled cavity inside the first box 102 through the cooperation of the cold air pipe 202e and the air intake fan 202b, so as to achieve food refrigeration.

[0047] Example 4

[0048] Reference Figures 1-7This is the fourth embodiment of the present invention, which differs from the third embodiment in that: the heating assembly 301 includes a first device box 301a and a second device box 301b disposed at the bottom of the housing 201, a sealing plate 301c disposed on the front side of the first device box 301a and the second device box 301b, a moving component 301d disposed in the first device box 301a, a motor 301e disposed in the second device box 301b for driving the moving component 301d, a heat-conducting plate 301f disposed above the first device box 301a and connected to the sealing plate 301c, and a heat insulation plate 301g disposed on the rear side of the heat-conducting plate 301f. The top of the first device box 301a is open, and the top of the second device box 301b can be screwed to accommodate a box. The cover and sealing plate 301c are the same length as the door 101. The tops of the heat-conducting plate 301f and the heat-insulating plate 301g are respectively provided with sliding grooves for sliding the first box 102 and the second box 104 together. When the first box 102 is placed into the box 201, its bottom contacts the top of the heat-conducting plate 301f. When the second box 104 is placed into the box 201, its bottom contacts the top of the heat-insulating plate 301g. When the first box 102 needs to be heated, the motor 301e drives the moving part 301d to rise and contact the bottom of the heat-conducting plate 301f. The heat-conducting plate 301f is made of heat-conducting material and can quickly transfer heat to heat the first box 102. The heat-insulating plate 301g and the second box 104 are both made of heat-insulating material and are not affected by heating.

[0049] Furthermore, the moving component 301d includes a lead screw 301d-1 connected to the motor 301e, a positioning block 301d-2 disposed in the middle of the lead screw 301d-1, moving blocks 301d-3 symmetrically disposed on both sides of the lead screw 301d-1, a lifting plate 301d-4 disposed on the top of the positioning block 301d-2 and the moving block 301d-3, and multiple heating plates 301d-5 disposed on the top front side of the lifting plate 301d-4. An elastic telescopic column 301d-6 is disposed between the bottom middle of the lifting plate 301d-4 and the positioning block 301d-2. Rotating rods 301d-7 are rotatably disposed on both sides of the bottom of the lifting plate 301d-4 between the two positioning blocks 301d-2. A lifting plate 301d-7 is disposed in the middle of the lead screw 301d-1. The screw 301d-1 is a smooth rod with opposite thread directions on both sides. The elastic telescopic column 301d-6 includes a telescopic sleeve and a spring mounted on the telescopic sleeve, allowing the elastic telescopic column 301d-6 to support the lifting plate 301d-4. Different heating plates 301d-5 are located directly below different inner pots 103b. The size of the heating plate 301d-5 can be the same as the bottom of the inner pot 103b, and it is equipped with a far-infrared heating device or heating wire. It can be heated when powered on. Different heating plates 301d-5 can be controlled to heat to different temperatures, which can be adjusted according to different food requirements. The moving block 301d-3 is threadedly connected to the screw 301d-1 and can move as the screw 301d-1 rotates. When heating is required, the motor 301e drives the lead screw 301d-1 to rotate in both directions, the two moving blocks 301d-3 move towards each other, and the near ends of the two rotating rods 301d-7 rotate upward, causing the heating plate 301d-5 to rise and contact the bottom of the heat-conducting plate 301f for heating; when heating is not required, the motor 301e drives the lead screw 301d-1 to rotate in reverse, the two moving blocks 301d-3 move away from each other to both sides of the lead screw 301d-1, causing the heating plate 301d-5 to descend and separate from the heat-conducting plate 301f.

[0050] The refrigeration assembly 303 includes a cooling plate 303a positioned above the lifting plates 301d-4, an evaporator tube 303b disposed inside the cooling plate 303a, connecting hoses 303c respectively disposed on both sides of the cooling plate 303a for communicating with the evaporator tube 303b, a heat insulation component 303d disposed at the bottom of the cooling plate 303a, and a retractable component 303e for driving the heat insulation component 303d to move. The evaporator tube 303b is connected to the evaporator inside the refrigerator via the connecting hoses 303c, and can cool the cooling plate 303a. When food needs to be cooled, the cooling plate 303a descends to cover the top of the first and second boxes 102, enhancing the refrigeration effect. As a result, at this time, the heat insulation component 303d is rolled up inside the cooling plate 303a by the rolling action of the retracting component 303e on one side. When the cooling plate 303a covers the top of the first box 102 and the second box 104, there is a certain gap between the two boxes, which does not affect the pulling of the first box 102 and the second box 104. When heating is required, as the lifting plate 301d-4 and the support plate 302 rise, the cooling plate 303a also rises and separates from the first box 102. At this time, the heat insulation component 303d is rolled up on the other side by the retracting component 303e and covers the bottom of the cooling plate 303a, which plays a role in heat insulation and can also absorb the water droplets generated at the bottom of the cooling plate 303a.

[0051] Furthermore, the heat insulation component 303d includes a rotating shaft 303d-1 respectively disposed on both sides inside the cooling plate 303a, a rope winding disc 303d-2 disposed at both ends inside one rotating shaft 303d-1, heat insulation cotton 303d-3 disposed on the shaft of the other rotating shaft 303d-1, and a connecting rope 303d-4 connecting the rope winding disc 303d-2 and the heat insulation cotton 303d-3. The bottom sides of the cooling plate 303a are symmetrically provided with connecting ropes 303d-4 and heat insulation cotton 303d-3. -3 through the slot 303d-5, the bottom of the cooling plate 303a is symmetrically provided with rope grooves 303d-6 for guiding the connecting rope 303d-4. Two rope winding discs 303d-2 are respectively fixed on the shafts at both ends of one side of the rotating shaft 303d-1. One end of the connecting rope 303d-4 is wound on the rope winding disc 303d-2, and the other end is connected to one end of the heat insulation cotton 303d-3. The other end of the heat insulation cotton 303d-3 is wound on the shaft of the other rotating shaft 303d-1.

[0052] Furthermore, the retracting component 303e includes a first pulley 303e-1 respectively disposed at both ends of the outer side of the rotating shaft 303d-1, a second pulley 303e-2 respectively disposed at both ends of the lead screw 301d-1, a first pull rope 303e-3 disposed between the first pulley 303e-1 and the second pulley 303e-2 on the same side at one end of the rotating shaft 303d-1, and a first pulley 303e-1 disposed at the other end of the other rotating shaft 303d-1. The second pull rope 303e-4 is connected to the second pulley 303e-2 on the same side. The first pull rope 303e-3 and the second pull rope 303e-4 have opposite winding directions. When heating is performed, the motor 301e drives the lead screw 301d-1 to rotate forward, causing the lifting plate 301d-4 and cooling plate 303a to rise. The first pull rope 303e-3 is wound onto the second pulley 303e-2 connected to it, and the second pull rope 303e-4 is wound onto the first pulley 303e-2 connected to it. On pulley 303e-1, one side shaft 303d-1 rotates clockwise to wind up the pull rope, while the other side shaft 303d-1 rotates clockwise to loosen the insulation cotton 303d-3, allowing the insulation cotton 303d-3 to pass through the slot 303d-5 and cover the bottom of the cooling plate 303a. When refrigeration is in progress, motor 301e drives lead screw 301d-1 to reverse, causing lifting plate 301d-4 and cooling plate 303a to rise, and the rope originally wound on the second pulley 303e-2... The first pull rope 303e-3 is loosened and then wound back onto the first pulley 303e-1 connected to it in reverse with the rotating shaft 303d-1. The second pull rope 303e-4 is wound onto the second pulley 303e-2 connected to it. One rotating shaft 303d-1 is reversed to loosen the pull rope, and the other rotating shaft 303d-1 is reversed to wind up the heat insulation cotton 303d-3, so that the heat insulation cotton 303d-3 is re-entered into the cooling plate 303a from the slot 303d-5.

[0053] During use, when heating is required, the motor 301e drives the lead screw 301d-1 to rotate forward, and the heating plate 301d-5 rises until it contacts the heat-conducting plate 301f, heating the bottom of the first box 102. At this time, the cooling plate 303a separates from the top of the first box 102, and the heat insulation cotton 303d-3 covers the bottom of the cooling plate 303a for heat insulation. When refrigeration is required, the motor 301e drives the lead screw 301d-1 to rotate in reverse, and the heating plate 301d-5 separates from the heat-conducting plate 301f. At this time, the cooling plate 303a descends until it contacts the top of the first box 102, and the heat insulation cotton 303d-3 is rolled up inside the cooling plate 303a.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A refrigeration and heating mechanism for a refrigerator, characterized in that: include, The drawer unit (100) includes a door (101), a first box (102) disposed on the rear side of the door (101), a water bath assembly (103) disposed in the first box (102), and a second box (104) disposed on the rear side of the first box (102). The mounting unit (200) includes a housing (201) disposed outside the first housing (102) and the second housing (104), and an air-cooling assembly (202) disposed on one side inside the housing (201) for cooling the interior of the first housing (102); and, The auxiliary unit (300) includes a heating component (301) disposed at the bottom of the box (201) for heating the first box (102), a support plate (302) disposed at the rear side of the heating component (301), and a refrigeration component (303) disposed at the top of the support plate (302) for cooling the top of the first box (102) and the second box (104). The water bath assembly (103) includes multiple mounting cavities (103a) disposed inside the first housing (102), an inner liner (103b) disposed inside the mounting cavity (103a), a water bath cavity disposed inside the inner liner (103b), a water inlet (103c) disposed on the top of the inner liner (103b), and internal air outlets (103d) respectively disposed at both ends of the upper side of the inner liner (103b). The first box (102) has an air-cooled cavity inside, and the inner air outlet (103d) is connected to the air-cooled cavity. A first water mist filter (102a) is provided on one side of the first box (102), and an outer air inlet is provided on the other side of the first box (102). The air-cooled assembly (202) includes an air-cooled box (202a) disposed on one side inside the housing (201), an intake fan (202b) and an exhaust fan (202c) disposed inside the air-cooled box (202a), and a second de-mist filter (202d) disposed on the air-cooled box (202a) and disposed opposite to the first de-mist filter (102a). The heating assembly (301) includes a first device box (301a) and a second device box (301b) disposed at the bottom of the housing (201), a sealing plate (301c) disposed on the front side of the first device box (301a) and the second device box (301b), a moving part (301d) disposed in the first device box (301a), a motor (301e) disposed in the second device box (301b) for driving the moving part (301d), a heat-conducting plate (301f) disposed above the first device box (301a) and connected to the sealing plate (301c), and a heat insulation plate (301g) disposed on the rear side of the heat-conducting plate (301f). The moving component (301d) includes a lead screw (301d-1) connected to the motor (301e), a positioning block (301d-2) disposed in the middle of the lead screw (301d-1), moving blocks (301d-3) symmetrically disposed on both sides of the lead screw (301d-1), a lifting plate (301d-4) disposed on the top of the positioning block (301d-2) and the moving block (301d-3), and a lifting plate (301d-4) disposed on the lifting plate (301d-4). Multiple heating plates (301d-5) are located on the top front side. An elastic telescopic column (301d-6) is provided between the bottom center of the lifting plate (301d-4) and the positioning block (301d-2). Rotating rods (301d-7) are rotatably provided between the bottom sides of the lifting plate (301d-4) and the two positioning blocks (301d-2). The middle part of the lead screw (301d-1) is set as a smooth rod, and the thread directions on both sides of the lead screw (301d-1) are opposite. The refrigeration assembly (303) includes a cooling plate (303a) disposed above the lifting plate, an evaporator tube (303b) disposed inside the cooling plate (303a), connecting hoses (303c) disposed on both sides of the cooling plate (303a) for communicating with the evaporator tube (303b), a heat insulation component (303d) disposed at the bottom of the cooling plate (303a), and a retractable component (303e) for driving the heat insulation component (303d) to move.

2. The refrigeration and heating mechanism of the refrigerator according to claim 1, characterized in that: The rear end of the air-cooled box (202a) is connected to a cold air pipe (202e), the front end of the air-cooled box (202a) is provided with an exhaust air outlet (202f), the bottom of one side of the box door (101) is provided with a hidden air outlet (101a), and the upper end of the hidden air outlet (101a) is opposite to the exhaust air outlet (202f). The side of the box body (201) is provided with an external air inlet pipe (201a) for communicating with the external air inlet.

3. The refrigeration and heating mechanism of the refrigerator according to claim 2, characterized in that: The heat insulation component (303d) includes a rotating shaft (303d-1) respectively disposed on both sides inside the cooling plate (303a), a rope winding disc (303d-2) disposed at both ends inside one of the rotating shafts (303d-1), heat insulation cotton (303d-3) disposed on the shaft of the other rotating shaft (303d-1), and a connecting rope (303d-4) connecting the rope winding disc (303d-2) and the heat insulation cotton (303d-3). The bottom sides of the cooling plate (303a) are symmetrically provided with slots (303d-5) for the connecting rope (303d-4) and the heat insulation cotton (303d-3) to pass through. The other two sides of the bottom of the cooling plate (303a) are symmetrically provided with rope grooves (303d-6) for guiding the connecting rope (303d-4).

4. The refrigeration and heating mechanism of the refrigerator according to claim 3, characterized in that: The retracting component (303e) includes a first pulley (303e-1) respectively disposed at both ends of the outer side of the rotating shaft (303d-1), a second pulley (303e-2) respectively disposed at both ends of the lead screw, a first pull rope (303e-3) disposed between the first pulley (303e-1) at one end of the rotating shaft (303d-1) and the second pulley (303e-2) on the same side, and a second pull rope (303e-4) disposed between the first pulley (303e-1) at the other end of the other rotating shaft (303d-1) and the second pulley (303e-2) on the same side.

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