CN218410408U - Refrigerator - Google Patents

Abstract

The utility model provides a refrigerator. The refrigerator comprises a refrigerator body, wherein the refrigerator body comprises a first refrigerator body wall opposite to the taking and placing opening, and a second refrigerator body wall and a third refrigerator body wall which are connected to two opposite side edges of the first refrigerator body wall; the width direction of the box body between the second box body wall and the third box body wall is a first direction; the first air duct comprises a first air duct bottom end surface facing the base and a first air duct front end surface close to the taking and placing opening; the second air duct is connected to one side, close to the base, of the first air duct, and comprises a boss arranged towards one end of the top plate, and the boss is fixedly connected with the bottom end face of the first air duct; the boss is arranged between the two screw columns on the two sides of the first direction; the first extending part is connected to the bottom end face of the first air duct and extends towards the base; the second limiting groove is formed in the boss and faces the top plate, the first extending portion is connected to the second limiting groove, the first extending portion is limited in the second limiting groove, and displacement of the first air channel and the second air channel in the normal direction of the upper end face of the first air channel is reduced.

Description

Refrigerator with a door

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a refrigerator.

Background

With the rapid development of refrigerators, the refrigerators can be used not only as household appliances, but also as a hall bar or a refrigerator for refrigerating or keeping food or beverage warm, and the application range of the refrigerators is more and more extensive.

Users have made higher demands for energy saving of refrigerators. A refrigerator generally comprises a base and a top panel defining a first direction as the length of the refrigerator cabinet between the base and the top panel. The refrigerator is internally provided with an air duct extending along a first direction, and the air duct blows cold air absorbed by the evaporator to each temperature control area of the refrigerator, so that cold quantity conveying of the temperature control areas is realized. The air duct conveys the cold air to the temperature control area to form circulation.

The wind channel is usually connected by a plurality of wind channels of arranging along the first direction shorter length and is formed, and among the prior art, the terminal surface in two adjacent wind channels is relative and is connected through buckle or couple, and at the in-process of refrigerator transportation, the wind channel can vibrate along with the vehicle on haulage vehicle, leads to the buckle to break away from the buckle groove, also leads to the couple to break away from the spread groove easily to lead to appearing becoming flexible easily between two adjacent wind channels, appear the clearance. When the refrigerator starts to be used, cold air in the air channels leaks out from the gap between the two air channels, so that the air supply efficiency of the air channels is poor, and the cold energy in the leaked air is not effectively utilized, so that the refrigeration efficiency of the refrigerator is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve one of the technical problem in the correlation technique at least to a certain extent.

Therefore, the application aims to provide a refrigerator, set up the spacing first wind channel of screw post through the setting, first wind channel bottom face is connected between two screw posts, so that first wind channel is spacing by two screw posts on the first direction, and set up first extension and connect at the spacing inslot of second, so that first extension is spacing at the spacing inslot of second, thereby reduce the displacement on the normal direction of first wind channel and second wind channel along first wind channel up end, thereby make first wind channel and second wind channel difficult the breaking away from when taking place to rock.

The refrigerator according to the application comprises:

the box body is internally provided with a storage space, and also comprises a taking and placing opening communicated with the storage space, a first box body wall arranged opposite to the taking and placing opening, and a second box body wall and a third box body wall connected to two opposite side edges of the first box body wall;

the door body is rotatably connected with the wall of the second box body so as to open or close the taking and placing opening; the width direction of the box body between the second box body wall and the third box body wall is a first direction;

the top plate and the base are respectively connected to the top and the bottom of the box body;

a plurality of temperature control regions provided in the storage space;

the first air duct is arranged on one side, close to the first box body wall, of the temperature control area, extends along the height direction of the box body between the top plate and the base, and comprises a first air duct bottom end face facing the base and a first air duct front end face which is parallel to the first box body wall and close to the taking and placing opening;

the second air duct is connected to one side, close to the base, of the first air duct, and comprises a boss arranged at one end, facing the top plate, and the boss is fixedly connected with the bottom end face of the first air duct;

the two sides of the boss in the first direction are respectively provided with two screw columns, the bottom end face of the first air duct is connected between the two screw columns, and the first air duct is limited by the two screw columns in the first direction;

the first extending part is connected to the bottom end face of the first air duct and extends towards the base;

the first extending part is connected in the second limiting groove, so that the first extending part is limited in the second limiting groove, and the relative positions of the first air duct and the second air duct in the normal direction of the upper end face of the first air duct are limited. .

In some embodiments of the present application, the first air duct includes a connecting side plate connected to a bottom end surface of the first air duct, and the connecting side plate is provided with at least two first screw holes on both sides in the first direction;

the positions and the sizes of the two first screw holes are matched with those of the two first screw columns, and screws penetrate through the first screw holes and the screw columns simultaneously so that the connecting side plate is fixedly connected with the screw columns to realize the fixed connection of the first air duct and the second air duct.

In some embodiments of the present application, the first air duct includes a first bent plate connected to an end wall of the connecting side plate facing the access opening, the first bent plate including:

the middle supporting plate is parallel to the top plate and extends towards the pick-and-place opening;

a baffle plate extending along the height direction of the box body between the base and the top plate; the baffle is rectangular shaped plate, and the middle part backup pad is connected in the intermediate position of baffle.

In some embodiments of this application, the length direction of first box wall and the box of putting between the mouth is the second direction, and the screw post extends along the second direction, is equipped with the second screw hole in the screw post, and the second screw hole extends to the terminal surface of putting the mouth along the orientation of second direction to the screw post.

In some embodiments of this application, connect the curb plate and connect on the side that is close to and gets the mouth of putting of first wind channel bottom face, when connecting curb plate and screw columnar connection, connect the curb plate and locate one side that is close to and gets the mouth of putting of screw post to make things convenient for the people to see through getting and putting the installation condition that the mouth observed the screw.

In some embodiments of the present application, the number and the position of the second limiting grooves are matched with those of the first extending portions.

In some embodiments of the present application, the first extending portion is connected to a position of the bottom end surface of the first air duct, which is close to the pick-and-place opening; a gap is formed between the connecting side plate and the first extending part;

the second spacing groove comprises a front spacing edge close to the taking and placing opening, and the front spacing edge is connected in the gap so that the gap can limit the front spacing edge.

In some embodiments of the present application, the boss includes a boss front side adjacent to the access opening, the boss front side having a shape that mates with the shape of the connecting side plate and the first bending plate such that the boss front side can be connected to the rear side of the connecting side plate and the first bending plate.

In some embodiments of the present application, the front end surface of the first air duct is rectangular, the first air duct includes a first air duct cover plate and a second air duct cover plate, the first air duct cover plate is located at a position of the first air duct close to the pick-and-place opening, the second air duct cover plate is located at a position of the first air duct close to the first box wall, and the first air duct cover plate and the second air duct cover plate are connected by a buckle.

In some embodiments of the application, the second wind channel includes an inclined section and a straight section, the inclined section is connected to a section of the straight section close to the first wind channel and the inclined section inclines from bottom to top, and the boss is arranged at one end of the inclined section close to the first wind channel.

The application has at least the following positive effects:

the utility model provides a refrigerator. The refrigerator comprises a refrigerator body, wherein the refrigerator body comprises a first refrigerator body wall, a second refrigerator body wall and a third refrigerator body wall, wherein the first refrigerator body wall is arranged opposite to the taking and placing opening, and the second refrigerator body wall and the third refrigerator body wall are connected to two opposite side edges of the first refrigerator body wall; the width direction of the box body between the second box body wall and the third box body wall is a first direction; the first air duct comprises a first air duct bottom end surface facing the base and a first air duct front end surface parallel to the first box wall and close to the taking and placing opening; the second air duct is connected to one side, close to the base, of the first air duct, and comprises a boss arranged at one end facing the top plate, and the boss is fixedly connected with the bottom end face of the first air duct; two sides of the boss in the first direction are respectively provided with two screw columns, the bottom end face of the first air duct is connected between the two screw columns, and the first air duct is limited by the two screw columns in the first direction; the first extending portion is connected to the bottom end face of the first air channel and extends towards the base, the two limiting grooves are formed in the boss and face the top plate, the first extending portion is connected to the second limiting groove, the first extending portion is limited in the second limiting groove, and therefore displacement of the first air channel and the second air channel in the normal direction of the upper end face of the first air channel is reduced. According to the refrigerator, the first air channel limiting the screw columns is arranged, the bottom end face of the first air channel is connected between the two screw columns, so that the first air channel is limited by the two screw columns in the first direction, the first extending portion is connected in the second limiting groove, the first extending portion is limited in the second limiting groove, and therefore displacement of the first air channel and the second air channel in the normal direction of the upper end face of the first air channel is reduced, and the first air channel and the second air channel are not prone to being separated when shaking occurs.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a view of an external appearance of a refrigerator according to an embodiment of the present application;

fig. 2 is a schematic view of a refrigerator according to an embodiment of the present application with an inner container and a cabinet removed;

fig. 3 is a schematic view illustrating connection of a first duct and a second duct of a refrigerator according to an embodiment of the present application;

fig. 4 is a schematic view of a first duct of a refrigerator according to an embodiment of the present application;

fig. 5 is a disassembled view of a first duct of a refrigerator according to an embodiment of the present application;

FIG. 6 is an enlarged view A of FIG. 5;

fig. 7 is a front view of a first duct of a refrigerator according to an embodiment of the present application;

FIG. 8 is a sectional view taken along line B-B of FIG. 7;

fig. 9 is an enlarged view C in fig. 8;

fig. 10 is a schematic view of another view of a first duct of a refrigerator according to an embodiment of the present application;

fig. 11 is an enlarged view D in fig. 10;

fig. 12 is a schematic view of another view of a first duct of a refrigerator according to an embodiment of the present application;

fig. 13 is an enlarged view E in fig. 12;

fig. 14 is a schematic view of another view of a first duct of a refrigerator according to an embodiment of the present application;

fig. 15 is an enlarged view F in fig. 14;

fig. 16 is an enlarged view G in fig. 3;

FIG. 17 is a left side view of FIG. 3;

fig. 18 is an enlarged view H in fig. 17;

FIG. 19 is a front view of FIG. 3;

FIG. 20 is an enlarged view of a portion of FIG. 19;

FIG. 21 is a sectional view taken along line J-J of FIG. 19;

fig. 22 is an enlarged view K in fig. 21;

in the above figures: 100. a refrigerator; 1. a box body; 11. a storage space; 12. a taking and placing port; 13. a first tank wall; 14. a second tank wall; 15. a third tank wall; 2. a door body; 3. a first air duct; 31. a first air duct cover plate; 311. a first side edge; 3111. a first groove; 312. a first clamping part; 3121. a first extension plate; 3122. a first projecting portion; 313. a first upper side; 314. a first lower side; 3141. a second buckle; 315. a first limiting part; 3151. an extension plate; 3152. a projection; 3153. projecting a rib plate; 32. a second air duct cover plate; 321. a second side edge; 3211. a second groove; 322. a first card slot; 323. a first support plate; 324. a second upper side; 325. a second lower side; 3251. a second card slot; 326. a first limit groove; 331. a first air duct bottom end face; 3311. a first extension portion; 332. the front end face of the first air duct; 34. connecting the side plates; 341. a first screw hole; 35. a first bending plate; 351. a middle support plate; 352. a baffle plate; 4. a second air duct; 41. a boss; 411. a second limit groove; 4111. a front limit edge; 412. the front side of the boss; 42. a screw post; 421. a second screw hole; 43. an inclined section; 44. a straight section; 5. a top plate; 6. a base.

Detailed Description

The present invention will now be described in detail by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted", "connected", and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The refrigerator includes a compressor, a condenser, an expansion valve, and an evaporator, and a refrigeration cycle is performed by the compressor, the condenser, the expansion valve, and the evaporator. The refrigeration cycle includes a compression process, a condensation process, an expansion process and an evaporation process, and provides cold energy to the storage space in the refrigerator through the heat absorption and release processes of the refrigerant, so as to realize the temperature regulation of the storage space.

The compressor compresses a refrigerant gas into a high-temperature and high-pressure state, discharges the compressed refrigerant gas, and the discharged refrigerant gas flows into the condenser. The condenser condenses the compressed high-temperature and high-pressure gaseous refrigerant into a liquid refrigerant, and heat is released to the surrounding environment through the condensation process.

The liquid refrigerant flowing out of the condenser enters an expansion valve, which expands the liquid refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid refrigerant. The low-pressure liquid refrigerant flowing out of the expansion valve enters the evaporator, the liquid refrigerant absorbs heat when flowing through the evaporator and is evaporated into low-temperature and low-pressure refrigerant gas, and the refrigerant gas in the low-temperature and low-pressure state returns to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The evaporator may regulate the temperature of the storage space throughout the cycle, absorbing heat within the storage space, and maintaining the contents of the storage space at a predetermined lower temperature.

Hereinafter, embodiments of the present application will be described in detail with reference to fig. 1 to 22.

The first direction is defined as the width direction of the box between the second box wall and the third box wall, the second direction is the height direction of the box between the top plate and the base, and the third direction is the length direction of the box between the first box wall and the opening.

The base of the refrigerator is defined to be in contact with the ground, and the state that the top plate of the refrigerator is opposite to the base and is positioned above the base is the state that a user normally uses the refrigerator. The direction in which the second box wall of the refrigerator is located at this time is the left side of the refrigerator, and the direction in which the third box wall is located is the right side of the refrigerator, namely, the first direction is the left-right direction of the refrigerator. The direction that the roof place when defining the refrigerator use is the upside of refrigerator, and the direction that the base place is the downside of refrigerator, and definition second direction is the vertical direction promptly. The side of the refrigerator facing the user when in use is defined as a front side, and the opposite side is defined as a rear side, i.e., the third direction is defined as a front-rear direction.

The application provides a refrigerator 100 with four accuse temperature regions, four accuse temperature regions are arranged and independent accuse temperature from top to bottom, can satisfy the temperature requirement of user to storing different article, and four accuse temperature regions include freezing district, variable temperature district, cold storage district and fresh-keeping zone, and the temperature of fresh-keeping zone maintains more than 0 degree centigrade, and the fresh-keeping zone is including being located the wine district on fresh-keeping zone upper portion, and the wine district is used for preserving red wine.

The refrigerator 100 further comprises an inner container, the inner container is arranged in the refrigerator body 1, a foaming material is filled between the inner container and the refrigerator body 1, and the foaming material can reduce the efficiency of the cold energy in the inner container diffusing to the outside so that the refrigerator 100 can keep warm. The inner container defines a storage space 11, and a user can store food or beverage to be refrigerated or frozen in the storage space 11. The housing 1 further includes an access opening 12 communicating with the storage space 11, and a user can access or store food or beverage in the storage space 11 by opening the access opening 12.

Shelves and drawers are typically provided within the storage space 11. A plurality of layer frame top-down arranges, has realized the layering storage of edible material, also can be used to store fruit vegetables or beverage in the drawer, and the drawer forms closed storage for layer frame, can reduce the air-dried phenomenon of fruit vegetables. The storage space 11 is divided into four different temperature control areas by partitions or shelves, and the temperature control areas are arranged up and down, and in some embodiments, the temperature control areas are arranged left and right, which is also within the scope of the present application.

The box body 1 comprises a first box body wall 13 opposite to the taking and placing opening 12, and a second box body wall 14 and a third box body wall 15 which are connected to two opposite side edges of the first box body wall 13, wherein the first box body wall 13, the second box body wall 14 and the third box body wall 15 extend along the vertical direction, the box body 1 further comprises a connecting top wall and a connecting bottom wall which are respectively connected to the top end and the bottom end of the upper end of the first box body wall 13, the upper end of the second box body wall 14 and the upper end of the third box body wall 15.

The door body 2 is rotatably connected to the pick-and-place port 12 and is used for opening or closing the pick-and-place port 12. The cabinet 1 is generally rectangular, the access opening 12 is generally rectangular, and the shape and size of the end surface of the door 2 facing the access opening 12 are matched with the shape and size of the access opening 12, so that the door 2 can open and close the access opening 12 to prevent the cool air inside the storage space 11 from leaking. The top included angle of the door body 2 and the bottom included angle of the door body 2 are connected with the box body 1 through hinges, so that one vertical side edge of the door body 2 is rotatably connected with one vertical side edge of the taking and placing opening 12. The door bodies 2 can be arranged in a plurality of manners, the door bodies 2 correspond to different temperature control areas respectively, a user can only open the door bodies 2 of the temperature control areas to be opened to take out articles, other temperature control areas are not needed, leakage of cold air can be reduced, and the refrigerator 100 is more energy-saving.

The refrigerator 100 further includes a top plate 5 and a base 6, the top plate 5 is connected to an upper end portion of the cabinet 1, the base 6 is connected to a lower end portion of the cabinet 1, the top plate 5 enhances strength of the upper end portion of the cabinet 1, and the base 6 is used to support the cabinet 1.

The refrigerator 100 further includes a first air duct 3 and a second air duct 4, both the first air duct 3 and the second air duct 4 are used for supplying air into the temperature control area, at least one air supply opening and at least one air return opening are arranged on the first air duct 3 and the second air duct 4, and the air supply opening and the air return opening can be correspondingly arranged in the temperature control area needing to supply air, so that cold air circulation is formed in the temperature control area to regulate and control the temperature and humidity of the temperature control area. In the embodiment of the present application, the second air duct 4 is correspondingly disposed on one side of the temperature varying region facing the first box wall 13 and is used for supplying air to the temperature varying region, the first air duct 3 is correspondingly disposed in the temperature control region above the temperature varying region, that is, on one side of the cooling region facing the first box wall 13, and the first air duct 3 is used for conveying cold air to the cooling region. In other embodiments of the present application, the first air duct 3 and the second air duct 4 may be used to supply air to the same temperature control area, or both the first air duct 3 and the second air duct 4 may supply air to a plurality of temperature control areas, and the number of the temperature control areas for supplying air to the first air duct 3 and the second air duct 4 is not limited in the present application.

The first air duct 3 is arranged on one side of the temperature control area close to the first box wall 13 and used for supplying air to a plurality of or single temperature control areas. When the first air duct 3 is used for supplying air to a single temperature control area, the first air duct 3 is correspondingly arranged at the rear side of the single temperature control area which needs to supply air, so that the flow path of cold air conveyed to the temperature control area is shortened.

The refrigerator 100 includes a first partition plate located above the temperature varying region and a second partition plate located below the temperature varying region, the first partition plate and the second partition plate being used to separate the temperature varying region from other temperature control regions. In this application, the second partition is used to separate the temperature-changing zone and the freezing zone.

The second partition has the function of an air duct capable of conveying the air in the second air duct 4 to the freezing zone. A first air duct 3 connecting port and a second air duct 4 connecting port which are positioned on the upper side face of the second partition plate are formed in the second partition plate, the first air duct 3 connecting port is communicated with a second air duct 4, cold air flowing out of the second air duct 4 enters the first air duct 3 connecting port and is blown into a freezing area through an air supply duct in the second partition plate, the second air duct 4 connecting port is communicated with the second air duct 4, and return air entering a return air duct in the second partition plate from the freezing area enters the second air duct 4 through the second air duct 4 connecting port.

The refrigerator 100 further comprises an evaporator arranged at the rear side of the second air duct 4, the second air duct 4 is communicated with a main air duct where the evaporator at the rear side is located, so that cold air in the main air duct can enter the second air duct 4, return air in the second air duct 4 can enter the main air duct, heat absorption of the evaporator on the return air is achieved, the refrigerator 100 can continuously supply the cold air to the second air duct 4, and due to the fact that the second air duct 4 is communicated with the variable temperature region, the cold air is supplied to the variable temperature region through the second air duct 4, and the return air in the variable temperature region is conveyed to the main air duct through the second air duct 4 to be subjected to heat exchange with the evaporator again.

The first air duct 3 is communicated with the second air duct 4 and is arranged above the second air duct 4. The first air duct 3 is a substantially flat cuboid, is arranged on the rear side of the temperature control area above the temperature change area, and can provide cold air for the temperature control area above the temperature change area.

Referring to fig. 1 to 15, a refrigerator 100 according to the present application includes a cabinet 1 having a storage space 11 formed therein, the cabinet 1 further including a pick-and-place port 12 communicating with the storage space 11, and including a first cabinet wall 13 disposed opposite to the pick-and-place port 12. The refrigerator 100 further includes a door 2 rotatably coupled to the cabinet 1 to open or close the access opening 12. The refrigerator 100 further includes a top plate 5 and a base 6 respectively coupled to the top and bottom of the cabinet 1; the height direction of the box body 1 between the top plate 5 and the base 6 is the third direction. The refrigerator 100 further includes a plurality of temperature control regions provided in the storage space 11.

The first air duct 3 is disposed on one side of the temperature control area close to the first box wall 13, and extends in the third direction. The second air duct 4 is connected to one side of the first air duct 3 close to the base 6, and the second air duct 4 is communicated with the first air duct 3. The first air duct 3 has a central axis extending along the third direction, and further includes a first air duct cover plate 31 and a second air duct cover plate 32, the central axis is a symmetry axis of the first air duct 3, and the central axis is also a symmetry axis of the first air duct cover plate 31 and the second air duct cover plate 32. The first air duct cover plate 31 is located at a position of the first air duct 3 close to the pick-and-place port 12, and includes a first side 311 extending along the third direction, and the first side 311 is provided with a first clamping portion 312 extending towards the first box wall 13. The second air duct cover plate 32 is located at a position, close to the first box wall 13, of the first air duct 3 and connected to one end, close to the first box wall 13, of the first air duct cover plate 31, the first air duct cover plate 31 and the second air duct cover plate 32 jointly limit an air outlet duct cavity, and cold air and return air flow in the air duct cavity.

Second duct cover 32 includes a second side 321 extending along the third direction, and a first engaging groove 322 and a first supporting plate 323 are disposed on second side 321.

The first card slot 322 is connected to the first card portion 312, and the position and size of the first card slot 322 match with the position and size of the first card portion 312. The first support plate 323 extends towards the access opening 12 and has at least two, the first engaging groove 322 is disposed between the two first support plates 323, the first support plate 323 includes an extending baffle 352 extending out of the second side 321 near the end wall of the first side 311, and the extending baffle 352 is connected to the side of the first side 311 near the central axis. The first side 311 is limited on the side of the first support plate 323 away from the central axis, so that the first clamping portion 312 cannot move toward the central axis, thereby limiting the first clamping portion 312 to be separated from the first clamping groove 322.

In the prior art, the air duct is generally formed by oppositely arranging a front air duct and a rear air duct and connecting the front air duct and the rear air duct by adopting a buckle. In the in-process of using refrigerator 100 for a long time, because the wind that flows in the wind channel can produce certain impact force to the wind channel, can lead to producing relative displacement between preceding wind channel and the back wind channel, lead to the buckle to break away from in the draw-in groove, thereby make the junction in preceding wind channel and back wind channel produce great clearance, wind in the wind channel spills from the clearance, lead to the efficiency variation that the wind channel carried the wind, cold volume in the cold wind that spills over from the wind channel is wasted, lead to refrigerator 100's efficiency variation, also lead to carrying to the amount of wind variation in accuse warm district, can lead to the regional accuse temperature effect variation of accuse temperature.

In addition to the first engaging groove 322 and the first engaging portion 312 defining the connection between the first air duct cover plate 31 and the second air duct cover plate 32, a first supporting plate 323 is disposed on the second side plate. Compared with the technical scheme that the front air duct and the rear air duct are connected through the buckles in the prior art, the first supporting plate 323 is further arranged, and the first clamping portion 312 can be prevented from being separated from the first clamping groove 322.

When the first air duct cover plate 31 and the second air duct cover plate 32 shake, the first support plate 323 is connected to the side surface, close to the central axis, of the first side edge 311, the first support plate 323 can limit the first side plate in the left-right direction, so that the first clamping portion 312 is prevented from moving towards the direction close to the central axis, the probability that the first clamping portion 312 is separated from the first clamping groove 322 is reduced, the first air duct cover plate 31 and the second air duct cover plate 32 are fastened and connected, the probability that air flows out from the gap between the first air duct cover plate 31 and the second air duct cover plate 32 is reduced, the probability of air conveying of the air duct is enhanced, the waste of cooling capacity is reduced, the efficiency of the refrigerator 100 is increased, the air volume conveyed to the temperature control area is kept at the rated air volume, and the temperature control effect of the temperature control area is ensured.

The shape of the first card slot 322 is a square opening, but is not limited thereto, and any shape may be used as long as the first card portion 312 and the first card slot 322 can be kept connected. When the first engaging portion 312 is engaged with the first engaging groove 322 during a long-term use of the first air duct 3, the first engaging groove 322 limits the movement amount of the first engaging portion 312 in the vertical direction and the front-back direction. The first supporting plate 323 is disposed near the first engaging groove 322, so that the first supporting plate 323 can provide a supporting force for the first side 311 to depart from the central axis.

First side 311 includes the vertical board that a plurality of intervals were arranged, and first joint portion 312 is connected with the vertical board, because first joint portion 312 receives the joint force of the first draw-in groove 322 of second side 321, vertical board interval sets up and is favorable to preventing that single vertical board atress is too big, makes first wind channel 3 in the in-process of long-time use, and the vertical board is difficult to break off, makes first side 311 and second side 321 can be stable be connected together that stabilizes through first joint portion 312 on the vertical board and first draw-in groove 322.

In this application, be equipped with three first joint portion 312 of arranging from top to bottom on single first side 311, equidistant interval is arranged between three first joint portion 312, is equipped with three first draw-in groove 322 of arranging from top to bottom on individual second side 321, and equidistant interval is arranged between three first draw-in groove 322. Because the three first clamping portions 312 and the three first clamping grooves 322 are arranged at equal intervals, the connecting force between the first side 311 and the second side 321 is more balanced, so that the first side 311 and the second side 321 are stably connected, and the wind in the first air duct 3 caused by the expansion of the gap at the joint of the first side 311 and the second side 321 in long-time use is prevented from flowing out from the gap in a large amount.

In some embodiments of this application, the end wall of first side 311 and the end wall of second side 321 are relative and the laminating, first joint portion 312 includes first extension board 3121 and the first bulge 3122 of being connected with first extension board 3121, first bulge 3122 is connected in first draw-in groove 322, one side at the orientation axis of second side 321 is connected to first extension board 3121, so that first extension board 3121 can play limiting displacement to second side 321, prescribe the one side of keeping away from the axis at first extension board 3121 with second side 321, prevent that second side 321 from rocking from side to side.

In some embodiments of the present application, the number of the first support plates 323 is at least two, the two first support plates 323 are respectively disposed on the front side and the rear side of the first locking groove 322, and when the first locking portion 312 is connected to the first locking groove 322, the two first support plates 323 apply a supporting force to the first side 311 toward a direction away from the central axis, so as to prevent the first locking portion 312 from moving toward the central axis to cause the first side 311 and the second side 321 to separate from each other.

It should be noted that a side surface of the first side 311 facing the central axis is defined as an inner side surface of the first side 311, and a side surface far away from the central axis is defined as an outer side surface of the first side 311; the side surface of the second side 321 facing the central axis is defined as an inner side surface of the second side 321, and the side surface away from the central axis is defined as an outer side surface of the second side 321.

First joint portion 312 is connected in first draw-in groove 322, because first joint portion 312 includes first extension board 3121, and first extension board 3121 is connected on the medial surface of second side 321, therefore, it can be seen that first joint portion 312 if want to break away from in first draw-in groove 322 and need move to the inside of first wind channel 3 earlier, make first bulge 3122 break away from in first draw-in groove 322, just can realize breaking away from of first joint portion 312. In this application, the first supporting plate 323 is disposed on the upper and lower sides of the first engaging groove 322, and the first supporting plate 323 is connected to the inner side surface of the first side 311.

When the first clamping portion 312 tends to move toward the inside of the first air duct 3, the first supporting plate 323 provides the first side 311 with a supporting force toward the outside of the first air duct 3, so that the first side 311 moves toward the direction away from the inside of the first air duct 3, and the first clamping portion 312 connected to the first side 311 can be limited in the first clamping groove 322, thereby reducing the probability that the first clamping portion 312 is separated from the first clamping groove 322. In the long-term use of first wind channel 3, can make the connection between first side 311 and the second side 321 more stable, make the end wall of first side 311 and the end wall of second side 321 keep the state of laminating mutually all the time, reduce the probability that wind leaked in first wind channel 3 to reduce the volume of leaking out of cold wind, make the utilization ratio of cold volume improve, make refrigerator 100 more energy-conserving.

In some embodiments of the present application, the inner side surface of the air duct facing the first side 311 is parallel to the first supporting plate 323, so that the first supporting plate 323 is more attached to the inner side surface of the first side 311, and thus the contact area between the first supporting plate 323 and the first side 311 is increased, and the connection between the first supporting plate 323 and the first side 311 is more stable.

In some embodiments of the present application, the first air duct cover plate 31 includes at least two first sides 311, and a plurality of first clamping portions 312 arranged at intervals up and down are disposed on the first sides 311; the second air duct cover plate 32 includes at least two second sides 321, a plurality of first slots 322 are disposed on the second sides 321 at intervals, and the number of the first clamping portions 312 is the same as that of the first slots 322, so that a single first clamping portion 312 is connected in a single first slot 322.

In some embodiments of the present application, the first extending plate 3121 is connected to the inner side surface of the first side 311, the outer side surface of the first side 311 is disposed in the first groove 3111, and the first groove 3111 is disposed at a corresponding position of the first extending plate 3121, so as to reduce the stress applied to the first side 311 at the first clamping portion 312, reduce the probability of damage to the first side 311, and maintain the stable connection state of the first air duct 3 during long-term use.

In some embodiments of the present application, the first supporting plate 323 is connected to an inner side surface of the second side 321, a second groove 3211 is disposed on an outer side surface of the second side 321, and the second groove 3211 is disposed at a corresponding position of the first supporting plate 323, so as to reduce stress applied to the second side 321 by the first supporting plate 323 and reduce the probability of damage to the second side 321 during the time of use.

In some embodiments of the present application, the first air duct cover 31 further includes a first upper side 313 and a first lower side 314 extending along the left-right direction, and the first lower side 314 is provided with a plurality of second fasteners 3141 arranged at intervals. The second air duct cover plate 32 further includes a second upper side 324 and a second lower side 325 extending in the left-right direction, the first and second lower sides are provided with a plurality of second engaging grooves 3251, and the second fasteners 3141 are connected to the second engaging grooves 3251 to fixedly connect the first lower side 314 and the second lower side 325, so that the lower end of the first air duct cover plate 31 is connected to the lower end of the second air duct cover plate 32.

In some embodiments of the present application, a plurality of first limiting portions 315 are disposed on the first upper side 313, and the first limiting portions 315 are arranged at intervals and extend toward the second air duct cover plate 32, at least two of the first limiting portions 315 are disposed, and the plurality of first limiting portions 315 are spaced at equal intervals; the second upper side 324 is provided with a plurality of first limiting grooves 326 which are arranged at intervals and open to the front, and the first limiting portion 315 is connected in the first limiting grooves 326, so that the upper end of the first air duct cover plate 31 is limited at the front side of the upper end of the second air duct cover plate 32.

In some embodiments of the present application, the first lower side 314 has a plurality of first position-limiting portions 315 arranged at intervals, and the first position-limiting portions 315 extend toward the second air duct cover plate 32; the second lower side 325 is provided with a plurality of first limiting grooves 326 which are arranged at intervals and open to the front, and the first limiting portion 315 is connected in the first limiting grooves 326, so that the lower end of the first air duct cover plate 31 is limited at the front side of the lower end of the second air duct cover plate 32.

It should be noted that, by the connection between the second snap 3141 and the second snap groove 3251 and the connection between the first limiting portion 315 and the first limiting groove 326, the connection between the upper end and the lower end of the first air duct cover plate 31 and the upper end and the lower end of the second air duct cover plate 32 is realized, so that the air in the first air duct 3 is limited to flow in the first air duct cover plate 31 and the second air duct cover plate 32.

In some embodiments of the present disclosure, the first stopper 315 includes an extension plate 3151 and a second protrusion 3152, the second protrusion 3152 includes a plurality of protruding ribs 3153, and the protruding ribs 3153 can enhance the strength of the first stopper 315, thereby preventing the first stopper 315 from being damaged due to excessive stress when the impact is applied.

In some embodiments of the present application, a plurality of limiting portions extending toward the rear side are disposed on the first side 311 of the first air duct cover plate 31, and a plurality of first limiting grooves 326 engaged with the first limiting portions 315 are disposed on the second side 321 of the second air duct cover plate 4, so that a limiting position is formed between the second air duct cover plate 32 and the first air duct cover plate 31, and the second air duct cover plate 32 is limited at one side of the first limiting portions 315 facing the inside of the first air duct 3.

Referring to fig. 1 to 3 and 16 to 22, the first duct 3 extends in the height direction of the cabinet 1 between the top plate 5 and the base 6. The first air duct 3 includes a first air duct bottom end surface 331 near the base 6, and a first air duct front end surface 332 parallel to the first box wall 13 and near the pick-and-place port 12, and a first air duct 3 side end surface near the second box wall 14 or the third box wall 15.

The first air duct 3 is a flat cuboid, the bottom end face 331 of the first air duct and the side end face of the first air duct 3 are both strip-shaped, the front end face 332 of the first air duct is a wider rectangle, an air supply duct for conveying cold air and an air return duct for returning air are arranged in the first air duct 3, and the air supply duct and the air return duct are respectively communicated with an air supply opening and an air return opening so as to realize air supply and air return with a temperature control area.

The second air duct 4 is connected to one side, close to the base 6, of the first air duct 3, the second air duct 4 is communicated with the first air duct 3, a heat exchanger is arranged on the rear side of the second air duct 4, cold air blown out from an area where the heat exchanger is located firstly enters the second air duct 4 and then enters the first air duct 3, and therefore air supply of the first air duct 3 and the second air duct 4 to the corresponding temperature control area is achieved.

The second air duct 4 includes a boss 41 at an end facing the top plate 5, the boss 41 is fixedly connected to the bottom end surface 331 of the first air duct, and the boss 41 provides an upward supporting force for the first air duct 3.

The refrigerator 100 further includes screw posts 42, the screw posts 42 are connected to the boss 41, two screw posts 42 are respectively disposed on two sides of the boss 41 in the first direction, and the first air duct bottom end surface 331 is connected between the two screw posts 42, so that the first air duct 3 is limited by the two screw posts 42 in the first direction, and the first air duct 3 cannot move in the left-right direction relative to the second air duct 4. Compared with the prior art, the first air duct 3 is limited in the left-right direction by the screw columns 42, and the air duct bottom end surface 331 is not easy to separate from the two screw columns 42.

The screw post 42 may be integrally formed with the boss 41, or may be formed separately from the boss 41. In some embodiments, the left side of the boss 41 is provided with a plurality of screw columns 42 arranged up and down, the right side of the boss 41 is provided with a plurality of screw columns 42 arranged up and down, and the number and the position of the screw columns 42 on the left side of the boss 41 are matched with the number and the position of the screw columns 42 on the right side of the boss 41, so that the first air duct bottom end surface 331 is subjected to symmetrical fixing force on the left side and the right side of the boss 41.

The first extension 3311 is connected to the first duct bottom end 331 and extends toward the base 6. In some embodiments, the first extension 3311 is a downwardly extending claw. And a second limit groove 411 which is provided on the boss 41 and faces the top plate 5, wherein the first extension portion 3311 is connected in the second limit groove 411 so that the first extension portion 3311 is limited in the second limit groove 411, thereby reducing displacement of the first air duct 3 and the second air duct 4 in the normal direction of the upper end surface of the first air duct 3, and limiting the first air duct 3 and the second air duct 4 in the front-rear direction.

In the prior art, the boss 41 and the first air duct 3 are often connected through a buckle or a hook, the connection mode of the buckle and the hook can fix the boss 41 and the first air duct 3 to a certain extent, but the buckle is easily separated from a connected buckle groove, and the hook is easily separated from a connected hook opening, particularly, the refrigerator 100 is often required to be transported to an area where a customer is located from a production place, the refrigerator 100 is easily shaken along with a transport vehicle due to shaking of the transport vehicle in a transportation process, the first air duct 3 and the second air duct 4 can shake along with shaking of the transport vehicle, separation between the buckle and the buckle groove is easily caused, and the hook opening are also easily separated, so that the connection between the first air duct 3 and the second air duct 4 is not stable enough, a gap is formed at the connection position of the first air duct 3 and the second air duct 4, when the user uses the refrigerator 100, air in the air duct leaks from the gap, the air conveying efficiency of the air duct is poor, cold air quantity in the refrigerator overflowing from the air duct is wasted, the efficiency of the refrigerator 100 is caused, the air quantity of a temperature control area is reduced, and the temperature control effect of the refrigerator is caused.

In the present application, two screw posts 42 are respectively disposed on two sides of the boss 41 in the first direction, and the first air duct bottom end surface 331 is connected between the two screw posts 42, so that the first air duct 3 is limited by the two screw posts 42 in the first direction, and the first air duct 3 cannot move relatively to the second air duct 4 in the first direction; the first extension portion 3311 is connected in the second limiting groove 411 so that the first extension portion 3311 is limited in the second limiting groove 411, thereby reducing the displacement of the first air duct 3 and the second air duct 4 in the normal direction of the upper end surface of the first air duct 3 even if the first air duct 3 and the second air duct 4 cannot be displaced relatively in the front-rear direction. From above, screw post 42 has realized spacing to first wind channel 3 and second wind channel 4 in the left and right directions, first extension 3311 is connected with second spacing groove 411 and has realized that first wind channel 3 and second wind channel 4 spacing in the front and back direction make the connection between first wind channel 3 and second wind channel 4 more firm, make and be difficult to break away from between first wind channel 3 and the second wind channel 4, thereby make the junction between first wind channel 3 and the second wind channel 4 difficult not hard up, reduce the amount of wind that spills at the junction of first wind channel 3 and second wind channel 4, thereby avoid the loss of cold volume, make the efficiency of refrigerator 100 promote, guarantee simultaneously to carry the amount of wind in the temperature control region that first wind channel 3 and second wind channel 4 correspond, make the temperature control effect reinforcing in temperature control region.

In some embodiments of the present application, the first air duct 3 includes a connecting side plate 34 connected to the first air duct bottom end surface 331, and the connecting side plate 34 is provided with at least two first screw holes 341 on both sides of the first direction. The positions and the sizes of the two first screw holes 341 are matched with the positions and the sizes of the two first screw posts 42, so that screws are simultaneously inserted into the first screw holes 341 and the screw posts 42, and the connecting side plate 34 is fixedly connected with the screw posts 42 to realize the fixed connection of the first air duct 3 and the second air duct 4. Compare the mode of connecting through buckle and couple among the prior art, can make the connection between first wind channel 3 and the second wind channel 4 more firm through the screw-up between first wind channel 3 and the second wind channel 4, reduce because first wind channel 3 and second wind channel 4 take place the vibration and lead to the condition that breaks away from.

In some embodiments of the present application, the first duct 3 includes a first bent plate 35, the first bent plate 35 is connected to an end wall of the connecting side plate 34 facing the access opening 12, and the first bent plate 35 includes a middle support plate 351 and a baffle 352. The middle support plate 351 is parallel to the top plate 5 and extends toward the access opening 12. The baffle 352 extends in the height direction of the case 1 between the base 6 and the top plate 5; the baffle 352 is a rectangular plate, and the middle support plate 351 is coupled to a middle position of the baffle 352. This application has strengthened the lower endwall intensity of connecting curb plate 34 through first bent plate 35, makes connecting curb plate 34 be difficult to because of the striking with second wind channel 4 and break down to make connecting curb plate 34 can and the screw post 42 between stable screw connection that passes through.

In some embodiments of the present application, the length direction of the box 1 between the first box wall 13 and the pick-and-place port 12 is the second direction, the screw column 42 extends along the second direction, a second screw hole 421 is provided in the screw column 42, and the second screw hole 421 extends along the second direction to the end surface of the pick-and-place port 12 facing the screw column 42, so that the screw can move into the first screw hole 341 and the second screw hole 421 along the front-back direction, which facilitates the installation of the screw.

The connecting side plate 34 is connected to the side of the first air duct bottom end surface 331 near the access opening 12, and when the connecting side plate 34 is connected to the screw column 42, the connecting side plate 34 is disposed on the side of the screw column 42 near the access opening 12, so that a person can conveniently observe the installation situation of the screws through the access opening 12.

Specifically, when the installer installs the first air duct 3 and the second air duct 4, the installer can correspondingly install the first screw hole 341 of the connecting side plate 34 of the first air duct 3 at the front side of the second screw hole 421 of the screw post 42, and then sequentially insert the screws into the first screw hole 341 of the connecting side plate 34 and the second screw hole 421 of the screw post 42 in a rotating manner, so that the connecting side plate 34 and the screw post 42 are fixedly connected. Because second screw hole 421 is open towards the front side, installer can be convenient take out or install the screw from taking out of putting mouthful 12, made things convenient for installer's maintenance to when the installation make things convenient for installer location first wind channel 3 and second wind channel 4's mounted position.

In some embodiments of the present application, the first extension portions 3311 have at least two, the plurality of first extension portions 3311 are equidistantly spaced apart from each other, the second plurality of slots 411 have at least two, and the plurality of second plurality of slots 411 are equidistantly spaced apart from each other such that the number and positions of the second plurality of slots 411 match the number and positions of the first extension portions 3311.

The first extending portions 3311 are connected to the second limiting grooves 411, so that the first extending portions 3311 are stably connected to the second limiting grooves 411, and the first duct 3 and the second duct 4 are more stably connected to each other.

A plurality of first extension 3311 equidistance interval are arranged, and a plurality of second spacing groove 411 equidistance interval are arranged to make when connecting between first extension 3311 and the second spacing groove 411, the atress between first wind channel bottom end face 331 and the second wind channel 4 up end is more balanced, thereby reduces the first extension 3311 atress too concentrated and takes place the probability of losing, makes between first wind channel 3 and the second wind channel 4 firm the connection.

It should be noted that the first air duct 3 includes a first extending portion 3311, and the first extending portion 3311 and the first air duct bottom end surface 331 are integrally formed, so that when the first extending portion 3311 is inserted into the second limiting groove 411, the first air duct bottom end surface 331 is not easily separated from the first extending portion 3311, and the connection between the first air duct 3 and the second air duct 4 is more stable.

In some embodiments of the present application, a first extension 3311 is attached to the first duct bottom end surface 331 proximate to the access port 12. A gap is formed between the connection side plate 34 and the first extension 3311. Second spacing groove 411 is including being close to the preceding spacing limit 4111 of getting and putting mouth 12, and preceding spacing limit 4111 is connected in the clearance to make the clearance spacing limit 4111 formation in the front, thereby make the clearance spacing to boss 41 formation, thereby make second wind channel 4 and first wind channel 3 form spacing relative displacement who reduces first wind channel 3 and second wind channel 4 in the front and back direction.

In some embodiments of the present application, the boss 41 includes a boss front side 412 near the access opening 12, and the boss front side 412 is shaped to match the shape of the connecting side plate 34 and the first bending plate 35, so that the boss front side 412 can be connected to the rear side of the connecting side plate 34 and the first bending plate 35. The preceding side of boss 41 is spacing at the rear side of first bent plate 35, and when first wind channel 3 and second wind channel 4 rocked relatively, the preceding side of boss 41 is spacing in the front rear direction by first bent plate 35 to make the relative displacement volume between first wind channel 3 and the second wind channel 4 reduce, reduced the probability that the clearance between first wind channel 3 and the second wind channel 4 produced, thereby reduce the amount of leakage wind.

In some embodiments of the present application, the first air duct front end surface 332 is rectangular, the first air duct 3 includes a first air duct cover plate 31 and a second air duct cover plate 32, the first air duct cover plate 31 is located at a position of the first air duct 3 close to the pick-and-place port 12, the second air duct cover plate 32 is located at a position of the first air duct 3 close to the first box wall 13, and the first air duct cover plate 31 and the second air duct cover plate 32 are connected by a buckle, so that the first air duct cover plate 31 and the second air duct cover plate 32 are fixed to each other, thereby reducing air leakage from between the first air duct cover plate 31 and the second air duct cover plate 32.

In some embodiments of the present application, the second air duct 4 includes an inclined section 43 and a straight section 44, the inclined section 43 is connected to a section of the straight section 44 close to the first air duct 3, the inclined section 43 is inclined from bottom to top, and the boss 41 is disposed at an end of the inclined section 43 close to the first air duct 3. The inclined section 43 of the second air duct 4 can provide upward supporting force for the straight section 44, so that the straight section 44 can stably provide upward supporting force for the bottom end surface 331 of the first air duct, the connection between the first air duct 3 and the second air duct 4 is more stable, and the situation that the first air duct 3 falls from the top of the second air duct 4 due to the change of the supporting force of the second air duct 4 for the first air duct 3 is prevented.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A refrigerator, characterized by comprising:

the box body is internally provided with a storage space, and further comprises a taking and placing opening communicated with the storage space, a first box body wall arranged opposite to the taking and placing opening, and a second box body wall and a third box body wall connected to two opposite side edges of the first box body wall;

the door body is rotatably connected with the wall of the second box body so as to open or close the taking and placing opening; the width direction of the box body between the second box body wall and the third box body wall is a first direction;

the top plate and the base are respectively connected to the top and the bottom of the box body;

a plurality of temperature control regions provided in the storage space;

the first air duct is arranged on one side, close to the first box body wall, of the temperature control area, extends along the height direction of the box body between the top plate and the base, and comprises a first air duct bottom end face facing the base and a first air duct front end face which is parallel to the first box body wall and close to the taking and placing opening;

the second air duct is connected to one side, close to the base, of the first air duct, the second air duct comprises a boss arranged at one end, facing the top plate, and the boss is fixedly connected with the bottom end face of the first air duct;

the two screw columns are respectively arranged on the two sides of the boss in the first direction, and the bottom end face of the first air duct is connected between the two screw columns so that the first air duct is limited by the two screw columns in the first direction;

the first extending part is connected to the bottom end face of the first air duct and extends towards the base;

the first extending part is connected to the second limiting groove, so that the first extending part is limited in the second limiting groove, and the relative positions of the first air duct and the second air duct in the normal direction of the upper end face of the first air duct are limited.

2. The refrigerator according to claim 1, wherein the first air duct includes a connecting side plate connected to a bottom end surface of the first air duct, the connecting side plate being provided with at least two first screw holes at both sides in the first direction;

the positions and the sizes of the two first screw holes are matched with those of the two first screw columns, screws penetrate through the first screw holes and the screw columns simultaneously, so that the connecting side plate is fixedly connected with the screw columns to realize the fixed connection of the first air channel and the second air channel.

3. The refrigerator as claimed in claim 2, wherein the first duct includes a first bent plate connected to an end wall of the connecting side plate facing the access opening, the first bent plate including:

the middle supporting plate is parallel to the top plate and extends towards the taking and placing opening;

a baffle plate extending in a height direction of the case between the base and the top plate; the baffle is rectangular plate, and the middle part backup pad is connected the intermediate position of baffle.

4. The refrigerator according to claim 2, wherein a length direction of the box between the first box wall and the access opening is a second direction, the screw post extends along the second direction, a second screw hole is provided in the screw post, and the second screw hole extends along the second direction to an end surface of the screw post facing the access opening.

5. The refrigerator as claimed in claim 4, wherein the connecting side plate is connected to a side of the bottom end surface of the first air duct near the access opening, and when the connecting side plate is connected to the screw post, the connecting side plate is disposed on a side of the screw post near the access opening to facilitate a person to observe the installation condition of the screw through the access opening.

6. The refrigerator as claimed in claim 1, wherein the first extension portion has at least two, a plurality of the first extension portions are arranged at equal intervals, the second limiting groove has at least two, a plurality of the second limiting grooves are arranged at equal intervals, and the number and position of the second limiting grooves are matched with those of the first extension portions.

7. The refrigerator as claimed in claim 2, wherein the first extension is connected to a bottom end surface of the first air duct at a position close to the pick-and-place opening; a gap is formed between the connecting side plate and the first extending part;

the second limit groove comprises a front limit edge close to the taking and placing opening, and the front limit edge is connected in the gap so that the gap limits the front limit edge.

8. The refrigerator as claimed in claim 3, wherein the boss includes a boss front side adjacent to the access opening, and the boss front side is shaped to match the connecting side plate and the first bending plate so that the boss front side can be connected to the rear side of the connecting side plate and the first bending plate.

9. The refrigerator according to claim 1, wherein the front end surface of the first air duct is rectangular, the first air duct includes a first air duct cover plate and a second air duct cover plate, the first air duct cover plate is located at a position of the first air duct close to the pick-and-place opening, the second air duct cover plate is located at a position of the first air duct close to the first box wall, and the first air duct cover plate and the second air duct cover plate are connected by a buckle.

10. The refrigerator as claimed in claim 1, wherein the second air duct includes an inclined section and a straight section, the inclined section is connected to a section of the straight section adjacent to the first air duct, the inclined section is inclined from bottom to top, and the boss is disposed at an end of the inclined section adjacent to the first air duct.

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