CN113531987B - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
- Publication number
- CN113531987B CN113531987B CN202010305817.5A CN202010305817A CN113531987B CN 113531987 B CN113531987 B CN 113531987B CN 202010305817 A CN202010305817 A CN 202010305817A CN 113531987 B CN113531987 B CN 113531987B
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- China
- Prior art keywords
- air duct
- duct
- temperature
- shell
- cover plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/067—Evaporator fan units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0683—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans not of the axial type
Abstract
The invention provides a refrigerator, which comprises a storage room, an upper air duct assembly, a lower air duct assembly and a variable temperature drawer, wherein the storage room is surrounded by a refrigerator liner; and a main air supply duct communicated with the storage room and the fan accommodating cavity is arranged in the fan accommodating cavity; the lower air duct component and the rear wall of the box liner jointly define a lower return air duct communicated with the fan accommodating cavity, and an evaporator is arranged in the lower return air duct; a temperature-changing storage chamber is formed in the temperature-changing drawer; the rear end part of the variable temperature drawer and the lower air duct assembly jointly define a rear return air duct communicated with the lower return air duct and the storage room, the bottom of the rear return air duct and the bottom wall of the box liner jointly define a bottom return air duct communicated with the variable temperature storage room and the lower return air duct, and the top of the rear return air duct is provided with a top air supply duct communicated with the fan accommodating cavity; the invention enables the airflow in the storage room to flow out from the rear side of the temperature-changing drawer, and the airflow passing through the temperature-changing drawer flows out through the bottom air return duct, thereby effectively improving the cooling efficiency.
Description
Technical Field
The invention belongs to the technical field of refrigerators, and particularly relates to a refrigerator.
Background
Refrigerators occupy an important share of the market as indispensable electric appliances in home life. With the increase of the quality requirements of consumers on fresh foods, the requirements on refrigerators are also higher and higher, and the refrigerators are required to have higher configuration and stronger functions. The existing refrigerator generally only has a freezing chamber and a refrigerating chamber, the shelf life of food placed in the refrigerating chamber is short, the food placed in the freezing chamber can be kept fresh for a longer time, but the food needs to be thawed, the thawing needs a certain time, and in addition, the thawing can bring nutrition loss.
At present, the functions of the refrigerator are improved from single food storage to moisture preservation, fresh preservation, specified temperature storage and the like. The temperature of the drawer is also changed when the temperature of the refrigerating chamber or the freezing chamber is adjusted, and the temperature of the drawer cannot be adjusted and set independently;
in addition, the existing low-temperature air flows out from the bottom of the storage chamber after passing through the storage chamber, and the air at the moment absorbs the heat of the storage chamber and has higher temperature than the upper-layer air, so the air is easy to rise, and the cooling effect of the upper-layer low-temperature air is reduced.
The invention is provided in view of the above.
Disclosure of Invention
The invention provides a refrigerator aiming at the technical problem.
In order to achieve the purpose, the invention adopts the technical scheme that:
a refrigerator, comprising:
the storage room is surrounded by the box liner;
the upper air duct assembly is arranged in the storage room; the upper air duct assembly is provided with a fan accommodating cavity for accommodating the centrifugal fan; a main air supply duct communicated with the storage room and the fan accommodating cavity is arranged in the air duct assembly;
a lower duct assembly located below the upper duct assembly; the lower air duct assembly and the rear wall of the box liner jointly define a lower return air duct communicated with the fan accommodating cavity, and an evaporator is arranged in the lower return air duct;
a variable temperature drawer accommodated in the storage compartment and having a variable temperature storage chamber formed therein; the rear end part of the variable temperature drawer and the lower air duct component jointly define a rear return air duct communicated with the storage room and the lower return air duct;
the top of the temperature-changing drawer is provided with a top air supply duct which is communicated with the fan accommodating cavity and the temperature-changing storage chamber;
the bottom of the variable temperature drawer and the bottom wall of the box liner jointly define a bottom return air duct which is communicated with the variable temperature storage chamber and the lower return air duct;
on one hand, the centrifugal fan can enable air to sequentially pass through the fan accommodating cavity, the main air supply duct, the storage room, the rear return air duct, the lower return air duct and the evaporator positioned in the rear return air duct and then return to the fan accommodating cavity; on the other hand, the air can sequentially pass through the fan accommodating cavity, the top air supply duct, the bottom air return duct, the lower air return duct and the evaporator positioned in the fan accommodating cavity and then return to the fan accommodating cavity.
Preferably, the upper air duct assembly comprises an upper air duct cover plate arranged on the rear wall of the box liner, and an upper foam piece and an upper air duct back plate are arranged between the upper air duct cover plate and the rear wall of the box liner; the upper foam piece is positioned between the upper air duct cover plate and the upper air duct back plate, and the upper air duct back plate and the upper foam piece jointly define the main air supply duct.
Preferably, the end part of the upper air duct back plate close to the two opposite side walls of the box liner is provided with a main air supply outlet communicated with the main air supply duct and the storage room.
Preferably, a flow guide cover is formed at the lower part of the upper air duct cover plate, and a suction inlet is formed on the flow guide cover; one side that the water conservancy diversion lid is close to the case courage back wall is equipped with the fan shell, the fan shell with the water conservancy diversion lid is injectd jointly fan holding chamber.
Preferably, the lower air duct assembly comprises a lower air duct cover plate which is arranged on the rear wall of the box liner and is positioned below the upper air duct cover plate; a lower air duct back plate is arranged between the lower air duct cover plate and the rear wall of the box liner; the lower air duct back plate and the rear wall of the box liner jointly define the lower return air duct.
Preferably, the diversion cover and the lower air duct cover plate define a suction air duct together, and the suction air duct is communicated with the fan accommodating cavity and the lower return air duct.
Preferably, the temperature-changing drawer comprises a shell fixed in the storage room and a door body connected to the shell and capable of being pushed into or withdrawn from the storage room;
the shell comprises a shell bottom plate positioned at the bottom of the shell and a lower top cover plate arranged opposite to the shell bottom plate; a first shell side plate, a shell back plate and a second shell side plate which are sequentially connected are arranged at the position surrounding the edge of the shell bottom plate; wherein the shell back plate is positioned at the rear side of the shell;
the lower air duct back plate and the shell back plate of the shell jointly define the back return air duct.
Preferably, a lower foam piece is arranged between the lower air duct cover plate and the lower air duct back plate, the lower air duct back plate and the lower foam piece jointly define a directional air supply duct communicated with the fan accommodating cavity, and the directional air supply duct is communicated with the top air supply duct through a variable-temperature drawer connecting duct.
Preferably, an upper top cover plate is arranged on the upper side of the lower top cover plate, a top foam piece attached to the lower top cover plate is arranged between the lower top cover plate and the upper top cover plate, and a top air supply duct communicated with the variable-temperature storage chamber is defined by the upper top cover plate and the top foam piece together.
Preferably, the temperature-changing drawer connecting air duct is bent, and one end of the temperature-changing drawer connecting air duct connected with the lower air duct cover plate is lower than one end of the temperature-changing drawer connecting air duct communicated with the temperature-changing storage chamber.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a refrigerator, which comprises a storage room, an upper air duct assembly, a lower air duct assembly and a variable temperature drawer, wherein the storage room is formed by enclosing a refrigerator liner; and a main air supply duct communicated with the storage room and the fan accommodating cavity is arranged in the fan accommodating cavity; the lower air duct component and the rear wall of the box liner jointly define a lower return air duct communicated with the fan accommodating cavity, and an evaporator is arranged in the lower return air duct; a temperature-changing storage chamber is formed in the temperature-changing drawer; the rear end part of the variable temperature drawer and the lower air duct assembly jointly define a rear return air duct communicated with the lower return air duct and the storage room, the bottom of the rear return air duct and the bottom wall of the box liner jointly define a bottom return air duct communicated with the variable temperature storage room and the lower return air duct, and the top of the rear return air duct is provided with a top air supply duct communicated with the fan accommodating cavity; the rear return air duct is defined at the rear side of the temperature change drawer, so that air flow in the storage room flows out from the rear side of the temperature change drawer, the phenomenon that the temperature reduction effect is reduced due to rising of hot air passing through the refrigerating chamber is effectively avoided, and the temperature reduction efficiency is improved; meanwhile, the temperature change drawer is arranged in the storage room, the bottom air return air channel is defined by the temperature change drawer and the bottom wall of the storage room, and hot air passing through the temperature change drawer flows out through the bottom air return air channel, so that the internal temperature of the existing refrigerator can be different from the temperature of the drawer device, the purposes of storing and keeping freshness of different kinds of food are achieved, and the temperature control effect can be improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a refrigerator according to the present invention;
FIG. 2 is a schematic diagram showing the relative relationship between the cabinet liner, the variable temperature drawer and the air duct assembly of the refrigerator according to the present invention;
FIG. 3 is an exploded view of the temperature-changing drawer and a portion of the air duct assembly of the refrigerator according to the present invention;
FIG. 4 is a schematic view of another angle exploded structure of the temperature change drawer and a portion of the air duct assembly of the refrigerator according to the present invention;
FIG. 5 is a schematic view of a partially exploded structure of an air duct assembly of the refrigerator according to the present invention;
FIG. 6 is a schematic view of a portion of the refrigerator according to the present invention;
FIG. 7 isbase:Sub>A cross-sectional view taken along A-A of FIG. 6;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 6;
FIG. 9 is an exploded view of the air duct assembly of the refrigerator according to the present invention;
FIG. 10 is a schematic view of another exploded structure of the temperature change drawer and a portion of the air duct assembly of the refrigerator according to the present invention;
FIG. 11 is a schematic view of another exploded view of the temperature change drawer and a portion of the duct assembly of the refrigerator according to the present invention;
FIG. 12 is another schematic view of the refrigerator according to the present invention;
fig. 13 is a cross-sectional view taken along the direction C-C of fig. 12.
In the above figures:
a refrigerator 10; a case 11; a housing 111; a tank bladder 112; a rear wall 112a; a bottom wall 112b; a refrigerating compartment 12; a variable temperature drawer 13; a housing 8; a housing bottom plate 8a; the first case side plate 8b; a case back plate 8c; the second case side plate 8d; a temperature-changing storage chamber 14; a door body 9; a storage container 54; a bottom return air duct 81; a lower top cover plate 82; an upper ceiling plate 83; a top foam member 84; a top air supply duct 85; a centrifugal fan 1; an upper air duct cover plate 2; an upper foam member 3; an upper air duct back plate 4; a main air supply duct 31; a main air supply outlet 31b; a deflector cover 21; a suction port 21a; a suction duct 22; a fan case 23; a fan housing chamber 24; a lower air duct cover plate 5; a lower foam member 6; a lower air duct back plate 7; a directional air supply duct 62; the variable temperature drawer is connected with an air duct 15; a lower return air duct 16; and a rear return air duct 18.
Detailed Description
The present invention is further described below in conjunction with specific examples to enable those skilled in the art to better understand the present invention and to practice it, but the scope of the present invention as claimed is not limited to the scope described in the specific embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used for explaining the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are 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" or "second" may explicitly or implicitly include at least one such feature.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 13, a refrigerator 10, the refrigerator 10 includes a heat-insulated cabinet 11, and the cabinet 11 includes an outer case 111, a cabinet liner 112, and a heat-insulating layer (not shown) therebetween. The cabinet 11 defines a plurality of insulated storage compartments to store food and the like. In the present embodiment, the storage compartments are a refrigerating compartment 12 located at an upper portion and a freezing compartment located at a bottom portion, respectively. The storage compartments may be closed by respective corresponding doors, which may be coupled to the cabinet 11 to be laterally rotated. The refrigerating chamber 12 is provided with a refrigerating side-by-side door, and the freezing chamber is provided with a freezing side-by-side door.
It should be understood that the present invention should not be limited to a particular distribution of the storage compartments of the refrigerator 10, and that the present invention may also be applied to other types of refrigerators 10, such as those having a drawer-type door, for example, 10.
The refrigerator 10 has an evaporative refrigeration system forming a closed loop configured to supply cold air to the storage compartment. The refrigeration system may generate cold air by using latent heat of evaporation of a refrigerant through a cooling cycle; the refrigeration system includes at least a compressor (not shown), a condenser (not shown), a throttle device (not shown), and an evaporator (not shown). Since such a refrigeration system is well known in the art, further description thereof is omitted. In this embodiment, the refrigerator 10 has two evaporative cooling systems, and the freezing chamber and the refrigerating chamber 12 are respectively provided with independent cooling systems, and separate air supply systems supply air to the refrigerating chamber 12 or the freezing chamber.
A temperature-changing drawer 13 with a switchable temperature range is arranged in the refrigerating chamber 12 of the refrigerator 10. The temperature changing drawer 13 is located at the bottom of the refrigerating compartment 12 and is supported on the bottom wall 112b of the refrigerating compartment 12. In this embodiment, two temperature-changing drawers 13 are arranged in parallel at the bottom of the refrigerating chamber 12.
The temperature changing drawer 13 may be constructed separately from the case 11 and assembled in the case 11. Referring to fig. 1 to 2, in the present embodiment, the temperature-changing drawer 13 has a substantially flat rectangular parallelepiped shape, and two temperature-changing drawers 13 are arranged in parallel to effectively distribute the bottom space of the refrigerating compartment 12.
Referring to fig. 3-4, the temperature-changing drawer 13 includes a casing 8 fixed in the refrigerating chamber 12 and a door 9 connected to the casing 8 and capable of being pushed into or withdrawn from the refrigerating chamber 12.
The housing 8 has a box-like structure defining a flat temperature-changing storage compartment 14 having a food access opening. In this embodiment, the access opening is located at the front end of the housing 8 facing the user.
The shell 8 comprises a shell bottom plate 8a positioned at the bottom of the shell, and a first shell side plate 8b, a shell back plate 8c and a second shell side plate 8d which are sequentially connected are arranged at the edge of the shell bottom plate 8a in a surrounding manner, wherein the shell back plate 8c is positioned at the rear side of the shell 8; the housing 8 includes a housing top assembly disposed opposite to the housing bottom plate 8a, and the housing top assembly is fixedly connected to the first housing side plate 8b, the housing back plate 8c, and the second housing side plate 8 d. In this embodiment, the two temperature-changing drawers 13 are arranged in parallel and share a shell side plate. The following description of the housing 8 is directed to one of the structures.
Wherein the bottom plate 8a and the bottom wall 112b of the tank container 112 define the bottom return air duct 81 communicated with the temperature-changing storage chamber 14. The communication port between the bottom return air duct 81 and the variable temperature storage chamber 14 is disposed at one end close to the pick-and-place port, so as to extend the circulation path of the air flow in the variable temperature storage chamber 14, thereby improving the cooling efficiency.
The shell top assembly comprises a lower top cover plate 82 and an upper top cover plate 83 which are arranged in an overlapping mode and connected, wherein a top foam piece 84 attached to the lower top cover plate 82 is arranged between the lower top cover plate 82 and the upper top cover plate 83. The upper top cover plate 83 and the top foam member 84 together define a top air supply duct 85 communicating with the temperature change storage compartment 14. In this embodiment, the communication openings of the top air supply duct 85 and the variable temperature storage chamber 14 are uniformly distributed in the variable temperature storage chamber 14, so as to effectively improve the cooling efficiency.
The door body 9 is a drawer type door, and the door body 9 can be pushed toward the casing 8 to close the access opening of the temperature-variable storage chamber 14 or pulled out to open the temperature-variable storage chamber 14. The rear side of the door 9 is connected to a tray-like storage container 54 for storing articles. The user obtains items located in the temperature change drawer 13 or stores items in the temperature change drawer 13 by pushing or pulling the storage container 54 into or out of the temperature change storage chamber 14. The door 9 and the storage container 54 together constitute a drawer unit that can be pushed into and pulled out of the housing 8.
A gap is formed at one end of the storage container 54 close to the shell back plate 8c of the housing 4, so that the airflow entering the storage container 54 from the top of the temperature-varying storage chamber 14 enters the gap between the storage container 54 and the shell back plate 8c through the gap, and then enters the gap between the storage container 54 and the shell bottom plate 8a to flow to the bottom return air duct 81 at the front end of the shell bottom plate 8a and the communicating port of the temperature-varying storage chamber 14, so as to enter the bottom return air duct 81. The arrangement effectively prolongs the circulation path of low-temperature air flow in the variable-temperature drawer 13, improves the temperature adjusting efficiency and improves the variable-temperature effect.
A telescopic rail unit may be provided between the storage container 54 and the housing 8, so that the door 9 and the storage container 54 may be smoothly pulled out of or pushed into the housing 8.
Referring to fig. 5 to 11 in conjunction with fig. 1, an upper duct assembly overlapping with the rear wall 112a of the cabinet liner 112 and a lower duct assembly located below the upper duct assembly are disposed inside the cabinet liner 112 (i.e., the upper duct assembly and the lower duct assembly together cover the rear wall 112a of the cabinet liner 112).
The upper air duct assembly comprises an upper air duct cover plate 2 arranged on the rear wall 112a of the box liner 112, and the lower air duct assembly comprises a lower air duct cover plate 5; wherein, the upper duct cover 2 is located on the upper side of the lower duct cover 5, and the upper duct cover 2 is connected with the lower duct cover 5 to cover the rear wall 112a.
An upper foam piece 3 which is attached to the upper air duct cover plate 2 is arranged between the upper air duct cover plate 2 and the rear wall 112a of the box liner 112. An upper air duct back plate 4 is arranged on one side of the upper air duct cover plate 2, which is close to the rear wall 112a of the box liner 112, and the upper air duct back plate 4 is fixedly connected with the upper air duct cover plate 2; wherein, the upper air duct back plate 4 and the upper foam piece 3 jointly define a main air supply duct 31. In this embodiment, the upper duct back plate 4 is fitted to the upper duct cover 2, and a main air supply port 31b for communicating the main air supply duct 31 with the refrigerating room 12 is formed at an end portion of the upper duct back plate 4 near both opposite side walls of the cabinet container 112.
The lower part of the upper air duct cover plate 2 is formed with a diversion cover 21, the diversion cover 21 is formed with a suction inlet 21a, and the diversion cover 21 and the lower air duct cover plate 5 jointly define a suction air duct 22. A fan shell 23 is arranged on one side of the diversion cover 21 far away from the lower air duct cover plate 5, and the fan shell 23 and the diversion cover 21 jointly define a fan accommodating cavity 24 for accommodating the centrifugal fan 1; as shown in fig. 7, fan housing chamber 24 communicates with main air supply duct 31, so that air is supplied into main air supply duct 31 by centrifugal fan 1 and guided into refrigerating compartment 12 through main air supply opening 31b.
A lower foam piece 6 jointed with the lower air duct cover plate 5 is arranged between the lower air duct cover plate 5 and the rear wall 112a of the box liner 112. A lower air duct back plate 7 is arranged on one side of the lower air duct cover plate 5, which is close to the rear wall 112a of the box liner 112, and the lower air duct back plate 7 is fixedly connected with the lower air duct cover plate 5; the lower duct back 7 and the lower foam 6 together define a directional air supply duct 62 communicating with the fan accommodating chamber 24. As shown in fig. 8, the top air supply duct 85 of the variable temperature drawer 13 is communicated with the directional air supply duct 62 through the variable temperature drawer connecting duct 15; therefore, the air is guided into the temperature-changing drawer 13 through the directional air supply duct 62, the temperature-changing drawer connecting duct 15 and the top air supply duct 85 in sequence under the action of the centrifugal fan 1, and finally flows out of the temperature-changing drawer 13 and enters the bottom air return duct 81, so as to perform specific temperature changing on the temperature-changing drawer 13. In this embodiment, as shown in fig. 8, the temperature-changing drawer connecting duct 15 is arranged in a linear shape and perpendicular to the lower duct cover 5; in addition, as shown in fig. 12-13, the variable temperature drawer connecting air duct 15 may be curved, and the end of the variable temperature drawer connecting air duct 15 connected to the lower air duct cover 5 is lower than the end of the variable temperature drawer connecting air duct 15 connected to the top air supply air duct 85, so as to change the air supply angle, further change the direction of the air flow entering the top air supply air duct 85, and effectively reduce the wind resistance.
The lower air duct back plate 7 and the rear wall 112a of the tank liner 112 define a lower return air duct 16 communicated with the suction air duct 22; an evaporator is provided in the lower return air duct 16 to cool the air passing through the lower return air duct 16. Wherein the lower return air duct 16 is in communication with the bottom return air duct 81.
The lower duct back plate 7 and the case back plate 8c of the case 8 together define a rear return air duct 18, and the rear return air duct 18 communicates the refrigerating chamber 12 with the lower return air duct 16. Namely, the bottom return air duct 81 and the rear return air duct 18 are both communicated with the lower return air duct 16. In this embodiment, the communication ports of the bottom return air duct 81 and the lower return air duct 16 are located at the bottom of the lower air duct back plate 7, and are also the communication ports of the rear return air ducts 18 and the lower return air duct 16. The lower air duct back plate 7 and the shell back plate 8c of the shell 8 jointly define the back return air duct 18, so that the airflow in the refrigerating chamber 12 flows out from the back side of the variable temperature drawer 13, the phenomenon that the rising of hot air passing through the refrigerating chamber 12 is reduced to reduce the cooling effect is effectively avoided, and the cooling efficiency is improved.
As shown in fig. 7, when refrigerating the refrigerating chamber 12, the centrifugal fan 1 drives the air to flow, the cold air is guided into the main air supply duct 31 communicated with the fan housing chamber 24 and is sent into the refrigerating chamber 12 through the main air supply outlet 31b, the air in the refrigerating chamber 12 enters the lower return air duct 16 through the rear return air duct 18 and is cooled by the evaporator in the lower return air duct 16, the cooled air enters the suction air duct 22 and is sent to the refrigerating chamber 12 through the centrifugal fan 1 via the suction inlet 21a, and the above cycle is repeated to cool the refrigerating chamber 12.
As shown in fig. 8 and 13, when the temperature change drawer 13 is cooled, the centrifugal fan 1 drives air to flow, cold air is introduced into the directional air supply duct 62 communicated with the fan accommodating chamber 24, and is sequentially introduced into the temperature change drawer 13 through the temperature change drawer connecting duct 15 and the top air supply duct 85, air flows in the temperature change storage chamber 14 of the temperature change drawer 13, finally enters the bottom return air duct 81, enters the lower return air duct 16 through the bottom return air duct 81, is cooled through the evaporator in the lower return air duct 16, and is sent to the temperature change drawer 13 through the centrifugal fan 1 through the suction port 21a, and the above cycle is repeated to cool the temperature change drawer 13.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (9)
1. The refrigerator is characterized in that: it includes:
the storage room is surrounded by the box liner;
the upper air duct assembly is arranged in the storage room; the upper air duct assembly is provided with a fan accommodating cavity for accommodating the centrifugal fan; a main air supply duct communicated with the storage room and the fan accommodating cavity is arranged in the air duct assembly;
a lower duct assembly located below the upper duct assembly; the lower air duct assembly and the rear wall of the box liner jointly define a lower return air duct communicated with the fan accommodating cavity, and an evaporator is arranged in the lower return air duct;
a variable temperature drawer accommodated in the storage compartment and having a variable temperature storage chamber formed therein; the rear end part of the variable temperature drawer and the lower air duct component jointly define a rear return air duct communicated with the storage room and the lower return air duct;
the top of the temperature-changing drawer is provided with a top air supply duct which is communicated with the fan accommodating cavity and the temperature-changing storage chamber;
the bottom of the variable temperature drawer and the bottom wall of the box liner jointly define a bottom return air duct which is communicated with the variable temperature storage chamber and the lower return air duct;
on one hand, the centrifugal fan can enable air to sequentially pass through the fan accommodating cavity, the main air supply duct, the storage room, the rear return air duct, the lower return air duct and the evaporator positioned in the rear return air duct and then return to the fan accommodating cavity; on the other hand, the air can sequentially pass through the fan accommodating cavity, the top air supply duct, the bottom air return duct, the lower air return duct and the evaporator positioned in the top air supply duct and then return to the fan accommodating cavity;
the temperature-changing drawer comprises a shell fixed in the storage room and a door body connected to the shell and capable of being pushed into or withdrawn from the storage room; the shell comprises a shell bottom plate positioned at the bottom of the shell and a lower top cover plate arranged opposite to the shell bottom plate; a first shell side plate, a shell back plate and a second shell side plate which are sequentially connected are arranged at the position surrounding the edge of the shell bottom plate; wherein the shell back plate is positioned at the rear side of the shell; the lower air duct back plate and the shell back plate of the shell jointly define the rear return air duct;
the rear side of the door body is connected with a tray-shaped article container for placing articles; a notch is formed in one end, close to the shell back plate of the shell, of the storage container; the air flow entering the storage container from the top of the temperature-changing storage chamber enters a gap between the storage container and the shell back plate through the notch, and then enters the gap between the storage container and the shell bottom plate to flow to a bottom air return channel positioned at the front end part of the shell bottom plate and a communication port of the temperature-changing storage chamber so as to enter the bottom air return channel.
2. The refrigerator according to claim 1, wherein: the upper air duct assembly comprises an upper air duct cover plate arranged on the rear wall of the box liner, and an upper foam piece and an upper air duct back plate are arranged between the upper air duct cover plate and the rear wall of the box liner; the upper air duct cover plate is arranged on the upper air duct back plate, and the upper air duct back plate and the upper foam piece define the main air supply duct together.
3. The refrigerator according to claim 2, wherein: and a main air supply opening communicated with the main air supply duct and the storage room is formed at the end part of the upper air duct back plate close to the two opposite side walls of the box liner.
4. The refrigerator according to claim 2 or 3, wherein: a flow guide cover is formed at the lower part of the upper air duct cover plate, and a suction inlet is formed on the flow guide cover; one side that the water conservancy diversion lid is close to the case courage back wall is equipped with the fan shell, the fan shell with the water conservancy diversion lid is injectd jointly fan holding chamber.
5. The refrigerator of claim 4, wherein: the lower air duct assembly comprises a lower air duct cover plate which is arranged on the rear wall of the box liner and is positioned below the upper air duct cover plate; a lower air duct back plate is arranged between the lower air duct cover plate and the rear wall of the box liner; the lower air duct back plate and the rear wall of the box liner jointly define the lower return air duct.
6. The refrigerator according to claim 5, wherein: the diversion cover and the lower air duct cover plate jointly define a suction air duct, and the suction air duct is communicated with the fan accommodating cavity and the lower return air duct.
7. The refrigerator according to claim 5 or 6, wherein: and a lower foam piece is arranged between the lower air duct cover plate and the lower air duct back plate, the lower air duct back plate and the lower foam piece jointly define a directional air supply duct communicated with the fan accommodating cavity, and the directional air supply duct is communicated with the top air supply duct through a variable-temperature drawer.
8. The refrigerator according to claim 7, wherein:
an upper top cover plate is arranged on the upper side of the lower top cover plate, a top foam piece attached to the lower top cover plate is arranged between the lower top cover plate and the upper top cover plate, and a top air supply duct communicated with the variable-temperature storage chamber is defined by the upper top cover plate and the top foam piece together.
9. The refrigerator according to claim 8, wherein: the temperature-changing drawer connecting air duct is bent, and one end of the temperature-changing drawer connecting air duct connected with the lower air duct cover plate is lower than one end of the temperature-changing drawer connecting air duct communicated with the temperature-changing storeroom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010305817.5A CN113531987B (en) | 2020-04-17 | 2020-04-17 | Refrigerator with a door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010305817.5A CN113531987B (en) | 2020-04-17 | 2020-04-17 | Refrigerator with a door |
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| Publication Number | Publication Date |
|---|---|
| CN113531987A CN113531987A (en) | 2021-10-22 |
| CN113531987B true CN113531987B (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010305817.5A Active CN113531987B (en) | 2020-04-17 | 2020-04-17 | Refrigerator with a door |
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| CN (1) | CN113531987B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113531987A (en) | 2021-10-22 |
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| CB02 | Change of applicant information |
Address after: 266736 No. 8 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266000 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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