CN116294386A - Refrigerator air duct structure and refrigerator - Google Patents

Refrigerator air duct structure and refrigerator Download PDF

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Publication number
CN116294386A
CN116294386A CN202310430927.8A CN202310430927A CN116294386A CN 116294386 A CN116294386 A CN 116294386A CN 202310430927 A CN202310430927 A CN 202310430927A CN 116294386 A CN116294386 A CN 116294386A
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CN
China
Prior art keywords
air
chamber
duct
compartment
refrigerating
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Pending
Application number
CN202310430927.8A
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Chinese (zh)
Inventor
张波
吴园
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Changhong Meiling Co Ltd
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Changhong Meiling Co Ltd
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Priority to CN202310430927.8A priority Critical patent/CN116294386A/en
Publication of CN116294386A publication Critical patent/CN116294386A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The application provides a refrigerator air duct structure and a refrigerator. The refrigerator air duct structure comprises an air outlet duct, an air return duct, an evaporator and a fan. The evaporator is arranged in a compartment formed by the freezing chamber and the back plate of the refrigerator, and the compartment is respectively communicated with the refrigerating chamber, the freezing chamber and the temperature changing chamber through an air outlet duct. The fan is arranged between the evaporator and the air outlet duct inlet to guide the refrigerating air to the air outlet duct inlet, so that the refrigerating air enters the refrigerating chamber, the freezing chamber and the temperature changing chamber for temperature adjustment. The temperature-changing chamber is respectively communicated with the freezing chamber and the refrigerating chamber through the return air duct, so that the freezing chamber, the refrigerating chamber, the temperature-changing chamber and the room for refrigerating are mutually communicated, and a uniform air circulation passage is formed. So that the temperature distribution in the freezing chamber, the refrigerating chamber and the temperature changing chamber is more uniform.

Description

Refrigerator air duct structure and refrigerator
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a refrigerator air duct structure and a refrigerator.
Background
The American refrigerator is a refrigerator with larger capacity and can comprise a freezing chamber, a refrigerating chamber and a temperature changing chamber. A single-evaporator three-temperature-zone air path system is arranged in the American refrigerator, and refrigerating gas near the evaporator is respectively blown to different air channels through a fan, so that the purposes of temperature regulation and air internal circulation are achieved.
The volume of the temperature changing chamber is usually smaller than that of the freezing chamber and the refrigerating chamber, so that the corresponding air channel inlets of the temperature changing chamber are relatively smaller, the air inlet efficiency of the temperature changing chamber is low, and the temperature adjusting speed of the temperature changing chamber is low. In addition, the evaporator is arranged at the rear side of the freezing chamber and the refrigerating chamber, so that the temperature change is large, the uniformity of the temperature distribution is poor, and the temperature in the chamber is uneven.
Disclosure of Invention
The application provides a refrigerator air duct structure and refrigerator to solve the inside temperature inhomogeneous of refrigerator compartment because of the distribution of American refrigerator inside wind duct, the slower problem of regulation speed.
In a first aspect, the present application provides a refrigerator air duct structure for air circulation between a refrigerating chamber, a freezing chamber and a temperature changing chamber of a refrigerator, comprising: the air conditioner comprises an air outlet duct, a return air duct, an evaporator and a fan; the evaporator is arranged in a compartment formed by the freezing chamber and a back plate of the refrigerator; the top and the bottom of the compartment are respectively provided with the air outlet duct; the fan is arranged between the air duct inlet of the air outlet air duct and the evaporator; the compartment is respectively communicated with the refrigerating chamber, the freezing chamber and the temperature changing chamber through the air outlet air duct; the temperature changing chamber is respectively communicated with the compartment and the refrigerating chamber through the return air duct.
In some possible embodiments, the air outlet duct at the top of the compartment is connected with the air outlet duct at the bottom of the compartment through an intermediate duct to form a semi-enclosed area in communication with the refrigerating compartment, the freezing compartment and the temperature changing compartment through an outlet of the air outlet duct; the fan is arranged inside the middle air duct.
In some possible embodiments, the air outlet duct comprises a chilled air outlet duct, the chilled air outlet duct being disposed at a top of the compartment; the compartment is communicated with the freezing compartment through the freezing air outlet duct; the fan is arranged between the air duct inlet of the freezing air outlet air duct and the evaporator, so that air refrigerated by the evaporator is guided to the freezing air outlet air duct.
In some possible embodiments, the air outlet duct further comprises a refrigerated air outlet duct; the refrigerating air outlet duct and the freezing air outlet duct are arranged at the top of the compartment in parallel; the fan is also arranged between the air duct inlet of the refrigerating air outlet duct and the evaporator, so that air refrigerated by the evaporator is guided to the refrigerating air outlet duct.
In some possible embodiments, the return air duct comprises a first return air duct; the compartment is communicated with the refrigerating chamber through the first return air duct so as to guide air in the refrigerating chamber to the bottom of the compartment.
In some possible embodiments, the freezer compartment is juxtaposed with the refrigerator compartment; the temperature changing chamber is arranged below the freezing chamber and the refrigerating chamber, and the temperature changing chamber is separated from the freezing chamber and the refrigerating chamber through a partition plate.
In some possible embodiments, the air outlet duct further comprises a variable temperature air outlet duct; the variable-temperature air outlet duct is arranged at the bottom of the compartment; the compartment is communicated with the temperature changing chamber through the temperature changing air outlet duct so as to guide the air cooled by the evaporator to the temperature changing chamber.
In some possible embodiments, the return air duct further includes a second return air duct and the third return air duct; the temperature changing chamber is communicated with the bottom of the compartment through the second return air duct so as to guide air in the temperature changing chamber to the compartment; and the third return air duct is communicated with the bottom of the refrigerating chamber so as to guide the air in the temperature changing chamber to the refrigerating chamber.
In some possible embodiments, the air outlet duct and the air return duct are both provided with an electric control air door.
In a second aspect, the present application provides a refrigerator, including a temperature sensor, a controller, and a refrigerator air duct structure provided in the first aspect; the temperature sensors are arranged in the refrigerating chamber, the freezing chamber and the temperature changing chamber of the refrigerator to detect temperature and feed back temperature acquisition data to the controller; the controller is used for analyzing the temperature acquisition data to obtain temperature data and controlling the running state of the air door in the refrigerator air duct structure according to the temperature data, and the running state of the air door comprises communication and closing.
According to the technical content, the application provides a refrigerator air duct structure and a refrigerator. The refrigerator air duct structure comprises an air outlet duct, an air return duct, an evaporator and a fan. The evaporator is arranged in a compartment formed by the freezing chamber and the back plate of the refrigerator, and the compartment is respectively communicated with the refrigerating chamber, the freezing chamber and the temperature changing chamber through an air outlet duct. The fan is arranged between the evaporator and the air outlet duct inlet to guide the refrigerating air to the air outlet duct inlet, so that the refrigerating air enters the refrigerating chamber, the freezing chamber and the temperature changing chamber for temperature adjustment. The temperature-changing chamber is respectively communicated with the freezing chamber and the refrigerating chamber through the return air duct, so that the freezing chamber, the refrigerating chamber, the temperature-changing chamber and the room for refrigerating are mutually communicated, and a uniform air circulation passage is formed. So that the temperature distribution in the freezing chamber, the refrigerating chamber and the temperature changing chamber is more uniform.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic view of an american refrigerator according to an embodiment of the present application;
fig. 2 is a schematic diagram of the interior of the american refrigerator according to the embodiment of the present application;
fig. 3 is a schematic diagram of front distribution of a refrigerator air duct structure according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating distribution of the back of a refrigerator air duct structure according to an embodiment of the present application.
Illustration of:
1-a box body; 10-freezing chamber; 11-a refrigerating chamber; 12-a temperature changing chamber; 100-freezing an air outlet duct; 110-refrigerating an air outlet duct; 120-changing temperature air outlet duct; 2-a box door; 300-a first return air duct; 310-a second return air duct; 320-a third return air duct; 400-fans; 500-evaporator.
Detailed Description
Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the examples below do not represent all embodiments consistent with the present application. Merely as examples of systems and methods consistent with some aspects of the present application as detailed in the claims.
As shown in fig. 1 and 2, the american refrigerator may include a door 2 and a cabinet 1, which are distinguished from other kinds of refrigerators in that they have a large receiving space and may include a freezing chamber 10, a refrigerating chamber 11, and a temperature changing chamber 12 therein. According to the usage habit of the refrigerator, the freezing chamber 10 and the refrigerating chamber 11 are more common, so that the freezing chamber and the refrigerating chamber can be arranged in parallel and respectively occupy larger space proportion. The temperature changing chamber 12 is used for temporarily storing some food materials requiring temperature, and the use ratio is relatively low, so that the food materials occupy a small space ratio. Therefore, the freezing chamber 10 and the refrigerating chamber 11 are arranged in parallel above the temperature changing chamber 12, and the temperature changing chamber 12 is partitioned from the freezing chamber 10 and the refrigerating chamber 11 by a partition plate.
The temperature regulation in the freezing chamber 10, the refrigerating chamber 11 and the temperature changing chamber 12 depends on the cooperation of the evaporator 500 and the fan 400 to drain the refrigerant gas to the freezing chamber 10, the refrigerating chamber 11 and the temperature changing chamber 12 through the air duct ports, respectively. However, the evaporator 500 and the fan 400 are usually disposed at the back sides of the refrigerating chamber 11 and the freezing chamber 10, and the flow path of the refrigerant gas to the temperature changing chamber 12 is long through a simple vent, which results in low temperature adjustment efficiency of the temperature changing chamber 12. The evaporator 500 and the fan 400 are disposed in the compartments to perform unidirectional flow-guiding for the freezing chamber 10, the refrigerating chamber 11 and the temperature changing chamber 12, so that the air circulation speed is slow and the air circulation speed is unevenly distributed due to the flow-guiding path, the direction and the like, and the temperatures in the freezing chamber 10, the refrigerating chamber 11 and the temperature changing chamber 12 are uneven.
In view of the above problems, as shown in fig. 3 and 4, the present application provides a refrigerator duct structure for air circulation between a refrigerating chamber 11, a freezing chamber 10 and a temperature changing chamber 12 of a refrigerator, comprising: an outlet air duct, a return air duct, an evaporator 500, and a fan 400; the evaporator 500 is disposed inside a compartment formed by the freezing chamber 10 and a back plate of the refrigerator; the top and the bottom of the compartment are respectively provided with the air outlet duct; the fan 400 is disposed between the air duct inlet of the air outlet duct and the evaporator 500; the compartment is respectively communicated with the refrigerating chamber 11, the freezing chamber 10 and the temperature changing chamber 12 through the air outlet duct; the temperature changing chamber 12 is respectively communicated with the compartment and the refrigerating chamber 11 through the return air duct.
The evaporator 500 is used to cool air in the vicinity thereof and to send the air to the refrigerating chamber 11, the freezing chamber 10, and the temperature changing chamber 12 by rotating the fan 400 at a certain speed. The freezing chamber 10 and the refrigerating chamber 11 are arranged in parallel, and a certain space is reserved between the freezing chamber and the back plate of the refrigerator for arranging the evaporator 500 and the fan 400, which is equivalent to forming a chamber for refrigeration. The refrigerating chamber 11, the freezing chamber 10, and the temperature changing chamber 12 are compartments for accommodating food materials. The top and bottom of the compartment for cooling can be provided with air outlet channels respectively, the air outlet channels are used for guiding the cooling air into the refrigerating chamber 11, the freezing chamber 10 and the temperature changing chamber 12, and the air outlet channels can play a role in guiding the air so as to improve the efficiency of the cooling air entering other compartments.
The top outlet duct is used for guiding the refrigerating air to the refrigerating chamber 11 and the freezing chamber 10. The fan 400 is disposed between the inlet of the top outlet duct and the evaporator 500, and can improve the efficiency of the cooling air entering the refrigerating chamber 11 and the freezing chamber 10. Since the space between the refrigerating chamber 11 and the freezing chamber 10 is larger than the temperature changing chamber 12, the amount of the refrigerating air is higher, and the fan 400 is disposed closer to the top air outlet duct, so that the refrigerating air can be more quickly supplied to the refrigerating chamber 11 and the freezing chamber 10 due to the rotation of the fan 400. In addition, the refrigerating chamber 11 and the freezing chamber 10 are closer to the evaporator 500 and are more easily affected by the temperature of the evaporator 500, so that the refrigerating air is conveyed to the refrigerating chamber 11 and the freezing chamber 10 more quickly, the air circulation speed of the refrigerating chamber 11 and the freezing chamber 10 is improved, and the internal temperature distribution is more uniform.
As shown in fig. 3, the temperature changing chamber 12 obtains the refrigerating air through the air outlet duct arranged at the bottom of the chamber, and the space inside the temperature changing chamber 12 is smaller, so that the position of the fan 400 in the refrigerating chamber can be slightly far away from the refrigerating chamber 11 and the freezing chamber 10, so as to improve the utilization rate of the refrigerating air.
In some embodiments, the temperature changing chamber 12 also returns air through an air outlet duct arranged at the bottom of the chamber, so that air exchange is realized, but the air return efficiency is low in this way, so that the air circulation speed in the temperature changing chamber 12 is low, and the temperature in the temperature changing chamber 12 is not easy to adjust. Therefore, in the embodiment of the present application, a return air duct is disposed between the temperature changing chamber 12 and the refrigerating compartment, and between the temperature changing chamber 12 and the refrigerating compartment 11, for accelerating the return air efficiency. Through the additional return air duct that sets up, can improve the inside air circulation efficiency of temperature changing room 12, and then improve temperature regulation speed.
As shown in fig. 3, the air outlet duct at the top of the compartment is connected with the air outlet duct at the bottom of the compartment through an intermediate duct to form a semi-closed area communicated with the refrigerating chamber 11, the freezing chamber 10 and the temperature changing chamber 12 through the outlet of the air outlet duct; the fan 400 is disposed inside the intermediate duct.
The middle air duct may be used to connect the top and bottom air outlet air ducts to form a semi-enclosed area, and the fan 400 in the semi-enclosed area may have a higher efficiency to direct the refrigerated air through the air outlet air ducts to the freezer compartment 10, the refrigerator compartment 11, and the temperature change compartment 12. The middle air duct can be used for containing the refrigerating air, and by setting the structure and the shape of the middle air duct, a circulation space can be created for the refrigerating air, and the flowing range and the flowing direction of the air can be limited to a certain extent. The drainage effect can be improved by matching with the air outlet duct, so that the air circulation efficiency is higher, and a faster temperature regulation effect can be achieved. The evaporator 500 may be disposed outside the semi-enclosed area to reduce the resistance of the volume of the evaporator 500 to air.
As shown in fig. 3, the air outlet duct includes a freezing air outlet duct 100, and the freezing air outlet duct 100 is disposed at the top of the compartment; the compartment is communicated with the freezing compartment 10 through the freezing air outlet duct 100; the fan 400 is disposed between the air duct inlet of the freezing air outlet duct 100 and the evaporator 500, so as to guide the air cooled by the evaporator 500 to the freezing air outlet duct 100.
According to the characteristics of air density, the air density with lower temperature is higher than that with higher temperature, so that the refrigerating air can move from higher place to lower place. The air outlet duct arranged at the top can guide in the refrigerating air from a higher position in the freezing chamber 10, and the refrigerating air naturally moves downwards from the high position of the freezing chamber 10 so as to drive the air in the freezing chamber 10 to circulate. Therefore, the air outlet duct for guiding the cooling air to the freezing chamber 10 is provided at the top of the compartment, and the air circulation efficiency can be improved.
The air outlet duct further comprises a refrigerating air outlet duct 110; the refrigerating air outlet duct 110 and the freezing air outlet duct 100 are arranged at the top of the compartment; the fan 400 is further disposed between the air duct inlet of the refrigerating air outlet duct 110 and the evaporator 500, so as to guide the air cooled by the evaporator 500 to the refrigerating air outlet duct 110.
Similar to the principle that the refrigerating air outlet duct 100 is disposed at the top of the freezing chamber 10, the refrigerating air outlet duct 110 disposed at the top of the compartment and the refrigerating chamber 11 can guide the refrigerating air into the refrigerating chamber 11 from a higher position, and make the refrigerating air naturally move downwards from a high position to drive the air circulation in the refrigerating chamber 11, thereby accelerating the air circulation efficiency.
The refrigerating outlet duct 110 is used for guiding the refrigerating air into the refrigerating chamber 11, the freezing chamber 10 and the temperature changing chamber 12, and a return air duct is required to form a complete air cycle. As shown in fig. 3, the return air duct includes a first return air duct 300; the compartment is communicated with the refrigerating compartment 11 through the first return air duct 300 to guide air in the refrigerating compartment 11 to the bottom of the compartment.
The first return air duct 300 is inclined to better introduce the air in the refrigerating compartment 11 to the bottom of the refrigerating compartment, and the air introduced into the bottom of the refrigerating compartment is cooled by the evaporator 500 to form refrigerating air, and is sent to the refrigerating compartment 11, the freezing compartment 10 and the temperature changing compartment 12 again to form air circulation. The first return air duct 300 and the refrigerating outlet air duct 110 cooperate to form an air circulation channel between the refrigerating chamber 11 and the compartment, so that compared with a single air duct for air outlet and return, the air circulation efficiency is improved, and the temperature non-uniformity phenomenon in the refrigerating chamber 11 is relieved.
As shown in fig. 1 and 2, the freezing compartment 10 is juxtaposed with the refrigerating compartment 11; the temperature changing chamber 12 is arranged below the freezing chamber 10 and the refrigerating chamber 11, and the temperature changing chamber 12 is separated from the freezing chamber 10 and the refrigerating chamber 11 by a partition plate. The partition plate of the temperature changing chamber 12 can be made of a material with a certain heat insulation function, so that the influence of the temperature in the freezing chamber 10, the refrigerating chamber 11 and the refrigerating chamber on the temperature of the temperature changing chamber 12 is reduced, and the preservation time of food materials with high temperature requirements in the temperature changing chamber 12 is prolonged. The space of the temperature changing chamber 12 is smaller than the freezing chamber 10 and the refrigerating chamber 11, but the space utilization rate and the refrigerator utilization rate can be improved by providing a plurality of temperature changing chambers 12 to provide a plurality of accommodating spaces for holding food materials with different temperature requirements. It will be appreciated that a plurality of ventilation openings may be provided in the same temperature changing chamber 12, and the same temperature changing chamber 12 is partitioned into a plurality of areas by a partition plate, and a plurality of temperature changing storage spaces are formed in the same temperature changing chamber 12 by opening and closing the ventilation openings.
As shown in fig. 3, the air outlet duct further includes a variable temperature air outlet duct 120; the variable temperature air outlet duct 120 is arranged at the bottom of the compartment; the compartment is communicated with the temperature changing chamber 12 through the temperature changing air outlet duct 120 so as to guide the air cooled by the evaporator 500 to the temperature changing chamber 12. The variable temperature outlet air duct 120 is connected to the intermediate air duct and, in conjunction with the intermediate air duct, introduces refrigerated air into the variable temperature chamber 12. The intermediate air duct and the variable temperature air duct can improve the conveying efficiency of the refrigerating air, thereby being beneficial to improving the air circulation speed in the variable temperature chamber 12 and improving the temperature regulation efficiency of the variable temperature chamber 12. By limiting the refrigerating air conveying path, the air conveying efficiency is improved, the air circulation speed is further improved, and the influence of slower temperature regulation caused by the fact that the variable temperature chamber 12 is far away from the refrigerating compartment is reduced.
As shown in fig. 4, the return air duct further includes a second return air duct 310 and a third return air duct 320; the temperature changing chamber 12 is communicated with the bottom of the compartment through the second return air duct 310 so as to guide the air in the temperature changing chamber 12 to the compartment; the third return air duct 320 communicates with the bottom of the refrigerating compartment 11 to guide the air in the temperature changing compartment 12 to the freezing compartment 10.
The second return air duct 310 is used for communicating the temperature changing chamber 12 with the bottom of the freezing chamber 10, and the third return air duct 320 is used for communicating the temperature changing chamber 12 with the bottom of the refrigerating chamber 11. By providing the independent second return air duct 310, air circulation is formed between the temperature changing chamber 12 and the freezing chamber, so that the air circulation efficiency between the temperature changing chamber 12 and the freezing chamber is improved. By providing the independent third return air duct 320, air in the temperature changing chamber 12 can enter the refrigerating chamber 11 and enter the bottom of the freezing chamber through the first return air duct 300 in the refrigerating chamber 11, so that air circulation is formed among the temperature changing chamber 12, the refrigerating chamber 11 and the refrigerated compartment, and the air circulation efficiency is further improved.
In this embodiment, the refrigerator is internally provided with a plurality of air circulation channels through the first air return duct 300, the second air return duct 310 and the third air return duct 320. Through the plurality of air circulation channels formed, the efficiency of air circulation is improved, and then the temperature distribution in the air circulation process in the refrigerating chamber 11, the freezing chamber 10 and the temperature changing chamber 12 is more uniform, and the refrigerator is more suitable for preserving food materials contained in the refrigerator space.
It should be understood that in the embodiment of the present application, the air outlet duct and the air return duct are both provided with an electric control air door. The temperatures in the refrigerating chamber 11, the freezing chamber 10 and the temperature changing chamber 12 are collected in real time. According to the temperature acquisition result, the opening and closing of the air doors in each air outlet air duct and each air return air duct can be controlled, so that the flow direction of the refrigerating air is controlled, and the temperature regulation effect is achieved.
When the electric control air door is in an open state, air or refrigerating air can freely pass through the electric control air door; when the electric control air door is in a closed state, air or refrigerating air cannot pass freely. Taking temperature control of the temperature changing chamber 12 as an example, when the temperature of the temperature changing chamber 12 reaches a preset temperature, an electric control air door of the temperature changing air outlet duct 120 of the temperature changing chamber 12 is controlled to be closed, so that the refrigerating air in the refrigerating chamber is prevented from entering the temperature changing chamber 12, and the effect of isolating low temperature is achieved. Through setting up a plurality of automatically controlled air doors, cooperation air cycle can improve temperature regulation's accuracy.
The application also provides a refrigerator, comprising a temperature sensor, a controller and the refrigerator air duct structure of any one of claims 1-9; the temperature sensors are arranged in the refrigerating chamber, the freezing chamber and the temperature changing chamber of the refrigerator to detect temperature and feed back temperature acquisition data to the controller; the controller is used for analyzing the temperature acquisition data to obtain temperature data and controlling the running state of the air door in the refrigerator air duct structure according to the temperature data, and the running state of the air door comprises communication and closing.
The application provides a refrigerator air duct structure and a refrigerator. The refrigerator air duct structure comprises an air outlet duct, an air return duct, an evaporator and a fan. The evaporator is arranged in a compartment formed by the freezing chamber and the back plate of the refrigerator, and the compartment is respectively communicated with the refrigerating chamber, the freezing chamber and the temperature changing chamber through an air outlet duct. The fan is arranged between the evaporator and the air outlet duct inlet to guide the refrigerating air to the air outlet duct inlet, so that the refrigerating air enters the refrigerating chamber, the freezing chamber and the temperature changing chamber for temperature adjustment. The temperature-changing chamber is respectively communicated with the freezing chamber and the refrigerating chamber through the return air duct, so that the freezing chamber, the refrigerating chamber, the temperature-changing chamber and the room for refrigerating are mutually communicated, and a uniform air circulation passage is formed. So that the temperature distribution in the freezing chamber, the refrigerating chamber and the temperature changing chamber is more uniform.
The foregoing detailed description of the embodiments is merely illustrative of the general principles of the present application and should not be taken in any way as limiting the scope of the invention. Any other embodiments developed in accordance with the present application without inventive effort are within the scope of the present application for those skilled in the art.

Claims (10)

1. A refrigerator air duct structure for air circulation between a refrigerating chamber (11), a freezing chamber (10) and a temperature varying chamber (12) of a refrigerator, the refrigerator air duct structure comprising: an air outlet duct, a return air duct, an evaporator (500) and a fan (400); the evaporator (500) is arranged in a compartment formed by the freezing chamber (10) and a back plate of the refrigerator; the top and the bottom of the compartment are respectively provided with the air outlet duct; the fan (400) is arranged between the air duct inlet of the air outlet air duct and the evaporator (500); the compartment is respectively communicated with the refrigerating chamber (11), the freezing chamber (10) and the temperature changing chamber (12) through the air outlet duct; the temperature changing chamber (12) is respectively communicated with the compartment and the refrigerating chamber (11) through the return air duct.
2. The refrigerator air duct structure according to claim 1, wherein an air outlet duct at the top of the compartment is connected with an air outlet duct at the bottom of the compartment through an intermediate duct to form a semi-closed area communicating with the refrigerating compartment (11), the freezing compartment (10) and the temperature changing compartment (12) through an outlet of the air outlet duct; the fan (400) is arranged inside the middle air duct.
3. The refrigerator duct structure according to claim 2, wherein the air outlet duct includes a freezing air outlet duct (100), the freezing air outlet duct (100) being provided at a top of the compartment; the compartment is communicated with the freezing chamber (10) through the freezing air outlet duct (100); the fan (400) is arranged between the air duct inlet of the freezing air outlet air duct (100) and the evaporator (500) so as to guide the air cooled by the evaporator (500) to the freezing air outlet air duct (100).
4. The refrigerator duct structure of claim 2, wherein the air outlet duct further comprises a refrigerated air outlet duct (110); the refrigerating air outlet duct (110) and the freezing air outlet duct (100) are arranged at the top of the compartment in parallel; the fan (400) is further arranged between the air duct inlet of the refrigerating air outlet duct (110) and the evaporator (500) so as to guide the air refrigerated by the evaporator (500) to the refrigerating air outlet duct (110).
5. The refrigerator tunnel structure of claim 1, wherein the return air tunnel comprises a first return air tunnel (300); the compartment is communicated with the refrigerating compartment (11) through the first return air duct (300) so as to guide air in the refrigerating compartment (11) to the bottom of the compartment.
6. The refrigerator duct structure according to claim 1, characterized in that the freezing chamber (10) is juxtaposed with the refrigerating chamber (11); the temperature changing chamber (12) is arranged below the freezing chamber (10) and the refrigerating chamber (11), and the temperature changing chamber (12) is separated from the freezing chamber (10) and the refrigerating chamber (11) through a partition plate.
7. The refrigerator tunnel structure of claim 6, wherein the air outlet tunnel further comprises a variable temperature air outlet tunnel (120); the variable-temperature air outlet duct (120) is arranged at the bottom of the compartment; the compartment is communicated with the temperature changing chamber (12) through the temperature changing air outlet duct (120) so as to guide the air cooled by the evaporator (500) to the temperature changing chamber (12).
8. The refrigerator duct structure of claim 1, wherein the return air duct further comprises a second return air duct (310) and a third return air duct (320); the temperature changing chamber (12) is communicated with the bottom of the compartment through the second return air duct (310) so as to guide air in the temperature changing chamber (12) to the compartment; the third return air duct (320) is communicated with the bottom of the refrigerating chamber (11) so as to guide air in the temperature changing chamber (12) to the refrigerating chamber (11).
9. The refrigerator air duct structure of claim 1, wherein the air outlet duct and the return air duct are provided with electric control air doors.
10. A refrigerator, characterized by comprising a temperature sensor, a controller and the refrigerator air duct structure of any one of claims 1-9; the temperature sensors are arranged in the refrigerating chamber, the freezing chamber and the temperature changing chamber of the refrigerator to detect temperature and feed back temperature acquisition data to the controller; the controller is used for analyzing the temperature acquisition data to obtain temperature data and controlling the running state of the air door in the refrigerator air duct structure according to the temperature data, and the running state of the air door comprises communication and closing.
CN202310430927.8A 2023-04-18 2023-04-18 Refrigerator air duct structure and refrigerator Pending CN116294386A (en)

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CN202310430927.8A CN116294386A (en) 2023-04-18 2023-04-18 Refrigerator air duct structure and refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310430927.8A CN116294386A (en) 2023-04-18 2023-04-18 Refrigerator air duct structure and refrigerator

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CN116294386A true CN116294386A (en) 2023-06-23

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CN202310430927.8A Pending CN116294386A (en) 2023-04-18 2023-04-18 Refrigerator air duct structure and refrigerator

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114484989A (en) * 2021-12-13 2022-05-13 安徽康佳同创电器有限公司 Air-cooled refrigerator and temperature control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114484989A (en) * 2021-12-13 2022-05-13 安徽康佳同创电器有限公司 Air-cooled refrigerator and temperature control method thereof

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