CN117366982A - Refrigerator and temperature control method - Google Patents

Refrigerator and temperature control method Download PDF

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Publication number
CN117366982A
CN117366982A CN202311244898.2A CN202311244898A CN117366982A CN 117366982 A CN117366982 A CN 117366982A CN 202311244898 A CN202311244898 A CN 202311244898A CN 117366982 A CN117366982 A CN 117366982A
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CN
China
Prior art keywords
quick
freezing
temperature
fan
air inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311244898.2A
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Chinese (zh)
Inventor
崔培培
马长州
陈开松
邓萍萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changhong Meiling Co Ltd
Original Assignee
Changhong Meiling Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changhong Meiling Co Ltd filed Critical Changhong Meiling Co Ltd
Priority to CN202311244898.2A priority Critical patent/CN117366982A/en
Publication of CN117366982A publication Critical patent/CN117366982A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F25D17/06—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
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/004—Control mechanisms
    • 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

Abstract

The application provides a refrigerator and temperature control method, the refrigerator includes: the device comprises a freezing chamber, a quick-freezing air duct, a quick-freezing area, a main evaporator, a refrigerating fan, an air inlet door, an auxiliary fan, a temperature sensor, an air outlet and a controller; the controller is used for: acquiring the temperature of a quick-freezing area detected by a temperature sensor; if the temperature of the quick-freezing area reaches the starting temperature of the quick-freezing area, acquiring an operation mode of the main evaporator; if the operation mode of the main evaporator is a standard mode, an opening instruction is sent to the refrigeration fan, the auxiliary fan and the air inlet air door so as to control the opening of the refrigeration fan, the auxiliary fan and the air inlet air door and control the refrigeration fan and the auxiliary fan to increase the rotating speed; and if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold value of the quick-freezing area, sending a closing instruction to the air inlet door and the auxiliary fan so as to control the air inlet door and the auxiliary fan to be closed. The quick-freezing area is reduced in volume, and the rotating speed of the refrigerating fan is controlled by the controller, so that the problem of long time consumption of quick refrigeration of the refrigerator is solved.

Description

Refrigerator and temperature control method
Technical Field
The application relates to the technical field of refrigerator refrigeration, in particular to a refrigerator and a temperature control method.
Background
The frostless refrigerator is characterized in that an evaporator is arranged in a freezing chamber, cold air is sent into each space needing to be refrigerated through an air duct by rotating a fan, and the cold air exchanges heat with hot air in the chamber and returns to the evaporator through an air return duct to exchange heat again. In the heat exchange process, the hot and humid air in the compartment enters the evaporator and is condensed and frosted on the evaporator, and the evaporator needs to be defrosted regularly in order to keep a good refrigeration effect of the evaporator.
Defrosting the evaporator can be performed periodically by adopting an electric heating mode, and hot gas generated in the heating process can rise, so that the temperature of the upper part of the freezing chamber can rise more. In addition, the frostless refrigerator has a quick-freezing function, and the quick-freezing function mainly realizes quick refrigeration of the whole freezing chamber by improving the rotating speed of a fan and the rotating speed of a compressor. But the quick freezing time of the refrigerator is long, the food material refrigeration can not be realized quickly, and the power consumption of the whole freezing chamber for quick refrigeration is large.
Disclosure of Invention
The application provides a refrigerator and a temperature control method, which are used for solving the problem of long time consumption of quick refrigeration of the refrigerator.
In a first aspect, the present application provides a refrigerator comprising: the device comprises a freezing chamber, a quick-freezing air duct, a quick-freezing area, a main evaporator, a refrigerating fan, an air inlet door, an auxiliary fan, a temperature sensor, an air outlet and a controller;
the quick-freezing area is arranged in the freezing chamber, the quick-freezing air duct is connected with the quick-freezing area through the air inlet, and the air outlet is arranged at the bottom of the quick-freezing area; the refrigerating fan and the main evaporator are arranged in the quick-freezing air duct, the air inlet door is arranged at the air inlet, and the auxiliary fan and the temperature sensor are arranged in the quick-freezing area; the controller is respectively connected with the refrigerating fan, the auxiliary fan, the temperature sensor, the air inlet door and the main evaporator; the quick-freezing temperature threshold value of the quick-freezing area is smaller than the freezing temperature threshold value of the freezing chamber, and the time for the temperature of the quick-freezing area to reach the quick-freezing temperature threshold value is smaller than the time for the temperature of the freezing chamber to reach the freezing temperature threshold value;
the controller is used for:
acquiring the temperature of a quick-freezing area detected by the temperature sensor;
if the temperature of the quick-freezing area reaches the starting temperature of the quick-freezing area, acquiring an operation mode of the main evaporator;
if the operation mode of the main evaporator is a standard mode, sending an opening instruction to the refrigeration fan, the auxiliary fan and the air inlet air door so as to control the refrigeration fan, the auxiliary fan and the air inlet air door to be opened and control the refrigeration fan and the auxiliary fan to increase the rotating speed;
and if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold value of the quick-freezing area, sending a closing instruction to the air inlet air door and the auxiliary fan so as to control the air inlet air door and the auxiliary fan to be closed.
Optionally, the quick-freezing device further comprises an auxiliary evaporator, wherein the auxiliary evaporator is arranged at the top of the quick-freezing region.
Optionally, the system also comprises a refrigerating system, wherein the refrigerating system comprises a compressor unit, an anti-condensation pipe, a condenser, a filter and a capillary tube; the outlet end of the compressor unit is connected with the inlet end of the anti-condensation pipe; the outlet end of the anti-condensation pipe is connected with the inlet end of the condenser, the outlet end of the condenser is connected with the inlet end of the filter, the outlet end of the filter is connected with the inlet end of the capillary, the outlet end of the capillary is connected with the inlet end of the main evaporator, the outlet end of the main evaporator is connected with the inlet end of the auxiliary evaporator, and the outlet end of the auxiliary evaporator is connected with the inlet end of the compressor unit.
Optionally, the controller also comprises a defrosting sensor, wherein the defrosting sensor is connected with the controller;
the controller is further configured to:
acquiring an operation mode of the main evaporator detected by the defrosting sensor;
if the operation mode of the main evaporator is a defrosting mode, a closing instruction is sent to the air inlet door, and an opening instruction is sent to the auxiliary fan so as to control the main evaporator to operate for a first preset time.
Optionally, the controller is further configured to:
recording defrosting time points;
after the defrosting time point is obtained, recording the accumulated running time of the compressor;
and if the accumulated running time is longer than the preset interval time, sending a closing instruction to the air inlet door and sending an opening instruction to the auxiliary fan so as to control the auxiliary evaporator to run for a second preset time.
Optionally, the quick-freezing area further comprises a heat absorption layer, the heat absorption layer is made of metal materials, and the heat absorption layer is arranged at the bottom of the quick-freezing area.
Optionally, the quick-freezing area further comprises an insulation layer, and the insulation layer is attached to the outer surface of the quick-freezing area.
In a second aspect, the present application provides a method for controlling temperature of a refrigerator, which is applied to the refrigerator in the first aspect, and the method includes:
acquiring the temperature of a quick-freezing area detected by a temperature sensor;
if the temperature of the quick-freezing area reaches the starting temperature of the quick-freezing area, acquiring an operation mode of the main evaporator;
if the operation mode of the main evaporator is a standard mode, an opening instruction is sent to a refrigeration fan, an auxiliary fan and an air inlet air door so as to control the refrigeration fan, the auxiliary fan and the air inlet air door to be opened and control the refrigeration fan and the auxiliary fan to increase the rotating speed;
and if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold value of the quick-freezing area, sending a closing instruction to the air inlet air door and the auxiliary fan so as to control the air inlet air door and the auxiliary fan to be closed.
Optionally, the method further comprises:
acquiring an operation mode of the main evaporator detected by a defrosting sensor;
if the operation mode of the main evaporator is a defrosting mode, a closing instruction is sent to the air inlet door, and an opening instruction is sent to the auxiliary fan so as to control the defrosting of the main evaporator for a first preset time.
Optionally, the method further comprises:
recording defrosting time points;
acquiring the interval time between the on time of the compressor and the defrosting time point;
if the interval time is longer than the preset interval time, a closing instruction is sent to the air inlet air door, and an opening instruction is sent to the auxiliary fan so as to control the auxiliary evaporator to defrost for a second preset time.
According to the technical scheme, the application provides a refrigerator and a temperature control method, wherein the refrigerator comprises: the device comprises a freezing chamber, a quick-freezing air duct, a quick-freezing area, a main evaporator, a refrigerating fan, an air inlet door, an auxiliary fan, a temperature sensor, an air outlet and a controller; the quick-freezing area is arranged in the freezing chamber, the quick-freezing air duct is connected with the quick-freezing area through the air inlet, the refrigerating fan and the main evaporator are arranged in the quick-freezing air duct, the air inlet door is arranged at the air inlet, and the auxiliary fan and the temperature sensor are arranged in the quick-freezing area; the controller is respectively connected with the refrigerating fan, the auxiliary fan, the temperature sensor, the air inlet door and the main evaporator; the quick-freezing temperature threshold value of the quick-freezing area is smaller than the freezing temperature threshold value of the freezing chamber, and the time for the temperature of the quick-freezing area to reach the quick-freezing temperature threshold value is smaller than the time for the temperature of the freezing chamber to reach the freezing temperature threshold value; the controller is used for: acquiring the temperature of a quick-freezing area detected by the temperature sensor; if the temperature of the quick-freezing area reaches the starting temperature of the quick-freezing area, acquiring an operation mode of the main evaporator; if the operation mode of the main evaporator is a standard mode, sending an opening instruction to the refrigeration fan, the auxiliary fan and the air inlet air door so as to control the refrigeration fan, the auxiliary fan and the air inlet air door to be opened and control the refrigeration fan and the auxiliary fan to increase the rotating speed; and if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold value of the quick-freezing area, sending a closing instruction to the air inlet air door and the auxiliary fan so as to control the air inlet air door and the auxiliary fan to be closed. The quick-freezing area is reduced in volume, and the rotating speed of the refrigerating fan is controlled by the controller, so that the problem of long time consumption of quick refrigeration of the refrigerator is solved.
Drawings
For a clearer description of the technical solutions of the present application, the drawings that are required to be used in the embodiments will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without the inventive effort.
Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for controlling the temperature of a refrigerator according to an embodiment of the present application;
FIG. 3 is a flow chart for controlling the temperature of a refrigerator according to an evaporator operation mode according to an embodiment of the present application;
fig. 4 is a flowchart for controlling a temperature of a refrigerator according to a defrosting time point according to an embodiment of the present application.
Reference numerals:
wherein, 1-freezing chamber; 2, quick-freezing air channels; 3-quick freezing area; 11-a main evaporator; 12-a refrigerating fan; 13-an air inlet; 31-an air inlet door; 32-an auxiliary fan; 33-auxiliary evaporator; 34-a temperature sensor; 35-an insulating layer; 36-a heat sink layer; 37-an air outlet; 38-defrosting sensor.
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.
The evaporator can be defrosted regularly by adopting an electric heating mode, and hot gas generated in the heating process can rise, so that the temperature of the upper part of the freezing chamber can rise more. In addition, the frostless refrigerator has a quick-freezing function, and the quick-freezing function mainly realizes quick refrigeration of the whole freezing chamber by improving the rotating speed of a fan and the rotating speed of a compressor. But the refrigerator quick-freezes consuming time longer, can not realize fast food refrigeration, and whole freezer quick refrigeration power consumption is great, and in the defrosting process of evaporimeter, the temperature change of refrigeration is great, is unfavorable for the storage of food.
In order to solve the problem of long time consumption of quick refrigeration of a refrigerator, referring to fig. 1, some embodiments of the present application provide a refrigerator, including: the refrigerating machine comprises a refrigerating chamber 1, a quick-freezing air duct 2, a quick-freezing area 3, a main evaporator 11, a refrigerating fan 12, an air inlet 13, an air inlet door 31, an auxiliary fan 32, a temperature sensor 34, an air outlet 37 and a controller. The quick-freezing area 3 is arranged in the freezing chamber 1, the quick-freezing air duct 2 is connected with the quick-freezing area 3 through an air inlet 13, and the air outlet 37 is arranged at the bottom of the quick-freezing area 3; the refrigerating fan 12 and the main evaporator 11 are arranged in the quick-freezing air duct 2, the air inlet door 31 is arranged at the air inlet 13, and the auxiliary fan 32 and the temperature sensor 34 are arranged in the quick-freezing area 3; the controller is respectively connected with the refrigerating fan 12, the auxiliary fan 32, the temperature sensor 34, the air inlet door 31 and the main evaporator 11; the quick-freezing temperature threshold of the quick-freezing area 3 is smaller than the freezing temperature threshold of the freezing chamber 1, and the time for the temperature of the quick-freezing area 3 to reach the quick-freezing temperature threshold is smaller than the time for the temperature of the freezing chamber 1 to reach the freezing temperature threshold.
The controller is used for: acquiring the temperature of the quick-freezing area detected by the temperature sensor 34; if the temperature of the quick-freezing area reaches the starting temperature of the quick-freezing area, acquiring the operation mode of the main evaporator 11; if the operation mode of the main evaporator 11 is the standard mode, an opening instruction is sent to the refrigeration fan 12, the auxiliary fan 32 and the air inlet air door 31 to control the refrigeration fan 12, the auxiliary fan 32 and the air inlet air door 31 to be opened, and control the refrigeration fan 12 and the auxiliary fan 32 to increase the rotation speed; if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold of the quick-freezing area 3, a closing instruction is sent to the air inlet door 31 and the auxiliary fan 32 so as to control the air inlet door 31 and the auxiliary fan 32 to be closed. Because the quick-freezing area 3 is connected with the quick-freezing air duct 2, the low-temperature gas generated by the main evaporator 11 can be sent into the quick-freezing area 3 through the quick-freezing air duct 2, the quick-freezing area 3 is connected with the quick-freezing air duct 2 through the air inlet door 31 and the air inlet 13, and the gas speed entering the quick-freezing area 3 is controlled through the air inlet door 31. Meanwhile, the refrigerating fan 12 can increase the flow speed of the gas in the quick-freezing air duct 2, the auxiliary fan 32 can increase the flow speed of the gas in the quick-freezing area 3, and the whole flow speed of the gas is increased through the refrigerating fan 12 and the auxiliary fan 32, so that the refrigerating cycle efficiency is improved.
The controller is respectively connected with the refrigerating fan 12, the auxiliary fan 32, the temperature sensor 34, the air inlet air door 31 and the main evaporator 11, when the controller detects that the temperature of the quick-freezing area reaches the opening temperature of the quick-freezing area, the operation mode of the main evaporator 11 is obtained, and when the operation mode of the main evaporator 11 is the standard mode, the main evaporator 11, the refrigerating fan 12, the auxiliary fan 32 and the air inlet air door 31 can be controlled to be opened to realize the quick-freezing function. When the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold, the air inlet air door 31 and the auxiliary fan 32 can be closed, so that the quick-freezing function is exited, and the quick-freezing time of the refrigerator is shortened.
In some embodiments, the refrigerator further comprises an auxiliary evaporator 33, the auxiliary evaporator 33 being arranged on top of the quick-freezing zone 3. By providing an auxiliary evaporator 33 on top of the quick-freezing zone 3, the refrigerating speed in the quick-freezing zone 3 is increased.
In some embodiments, the refrigerator further comprises a refrigeration system comprising a compressor train, an anti-condensation tube, a condenser, a filter, a capillary tube; the outlet end of the compressor unit is connected with the inlet end of the anti-condensation pipe; the outlet end of the anti-condensation pipe is connected with the inlet end of the condenser, the outlet end of the condenser is connected with the inlet end of the filter, the outlet end of the filter is connected with the inlet end of the capillary, the outlet end of the capillary is connected with the inlet end of the main evaporator 11, the outlet end of the main evaporator 11 is connected with the inlet end of the auxiliary evaporator 33, and the outlet end of the auxiliary evaporator 33 is connected with the inlet end of the compressor unit. The main evaporator 11 and the auxiliary evaporator 33 are in a serial connection relationship, after the quick-freezing function is started, the main evaporator 11 and the auxiliary evaporator 33 run simultaneously, low-temperature gas generated by the main evaporator 11 enters the quick-freezing region 3 through the refrigerating fan 12, the air inlet door 31 and the air inlet 13, the auxiliary evaporator 33 is arranged at the top of the quick-freezing region 3, and the generated low-temperature gas directly enters the quick-freezing region 3, meanwhile, the main evaporator 11 is arranged in the quick-freezing air duct 2 and is close to the air inlet 13, so that the cold loss can be reduced, and the quick-freezing effect of the quick-freezing region 3 is improved.
In some embodiments, the refrigerator further includes a defrosting sensor 38, the defrosting sensor 38 being connected to the controller; the controller is further configured to: acquiring an operation mode of the main evaporator 11 detected by the defrosting sensor 38; if the operation mode of the main evaporator 11 is the defrosting mode, a closing instruction is sent to the air inlet door 31, and an opening instruction is sent to the auxiliary fan 32 to control the main evaporator 11 to operate for a first preset time. When the operation mode of the main evaporator 11 is the defrosting mode, the quick-freezing area 3 needs to be quickly frozen after the defrosting of the main evaporator 11 is finished. The controller can control the heating plate on the main evaporator 11 to heat the evaporator for a first preset time, defrost the main evaporator 11 in a heating mode, and in the heating process, the controller controls the air inlet air door 31 to be closed so as to reduce the high-temperature gas to enter the quick freezing chamber, and simultaneously, the auxiliary fan 32 in the quick freezing zone 3 is started to defrost the auxiliary evaporator 33. For example, the first preset time is 25 minutes.
In some embodiments, the controller is further to: recording defrosting time points; after a defrosting time point is acquired, recording the accumulated running time of the compressor; if the accumulated running time is greater than the preset interval time, a closing instruction is sent to the air inlet door 31, and an opening instruction is sent to the auxiliary fan 32 to control the auxiliary evaporator 33 to run for a second preset time. For example, the preset interval time is 6h, the second preset time is 20min, and the defrosting time point is 13:00, compressor 21:00 stops, 13:00 to 21: during the period 00, the cumulative operation of the compressor 7h,7h is longer than the preset interval time 6h, so that the air inlet door 31 needs to be closed by the controller, and the auxiliary fan 32 needs to be opened to defrost the auxiliary evaporator 33 for 20min. By detecting the compressor on time and the interval time of the defrosting time point, the auxiliary evaporator 33 is defrosted, so that the auxiliary evaporator 33 is not required to be defrosted in the next quick freezing process.
In some embodiments, the quick-freezing section 3 further includes a heat-absorbing layer 36, the heat-absorbing layer 36 is made of metal, and the heat-absorbing layer 36 is disposed at the bottom of the quick-freezing section 3. For example, an aluminum plate is placed in the quick-freezing area 3, after food material is placed in the quick-freezing area 3, heat on the food material is transferred to the aluminum plate after the food material contacts with the aluminum plate, and heat exchange efficiency of the food material can be improved.
In some embodiments, the quick-freezing section 3 further comprises an insulating layer 35, and the insulating layer 35 is attached to the outer surface of the quick-freezing section 3. Because the quick-freezing area 3 and the freezing chamber 1 have temperature difference, the heat exchange between the quick-freezing area 3 and the freezing chamber 1 is reduced by arranging the heat preservation layer 35 on the outer surface of the quick-freezing area 3, so that the quick-freezing area 3 can keep a low-temperature state for a long time.
As shown in fig. 2, some embodiments of the present application further provide a method for controlling a temperature of a refrigerator, which is applied to the refrigerator provided in the foregoing embodiments, where the method for controlling a temperature of a refrigerator includes:
s10: the quick-freezing region temperature detected by the temperature sensor 34 is acquired.
S20: if the temperature of the quick-freezing zone reaches the starting temperature of the quick-freezing zone 3, the operation mode of the main evaporator 11 is obtained.
S30: if the operation mode of the main evaporator 11 is the standard mode, an opening command is sent to the refrigeration fan 12, the auxiliary fan 32 and the air inlet door 31 to control the refrigeration fan 12, the auxiliary fan 32 and the air inlet door 31 to be opened, and control the refrigeration fan 12 and the auxiliary fan 32 to increase the rotation speed.
S40: if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold of the quick-freezing area 3, a closing instruction is sent to the air inlet door 31 and the auxiliary fan 32 so as to control the air inlet door 31 and the auxiliary fan 32 to be closed.
In some embodiments, as shown in fig. 3, the control method of the temperature of the refrigerator further includes:
s21: the operation mode of the main evaporator 11 detected by the defrosting sensor 38 is acquired.
S22: if the operation mode of the main evaporator 11 is a defrosting mode, a closing instruction is sent to the air inlet door 31, and an opening instruction is sent to the auxiliary fan 32 to control the main evaporator 11 to defrost for a first preset time.
In some embodiments, as shown in fig. 4, the refrigerator temperature control method further includes:
s50: the time point of defrosting is recorded.
S60: the interval time between the compressor on time and the defrosting time point is obtained.
S70: if the interval time is longer than the preset interval time, a closing instruction is sent to the air inlet door 31, and an opening instruction is sent to the auxiliary fan 32 to control the auxiliary evaporator 33 to defrost for a second preset time.
As can be seen from the above technical solutions, the embodiments of the present application provide a refrigerator and a temperature control method, where the refrigerator includes: the refrigerating machine comprises a freezing chamber 1, a quick-freezing air duct 2, a quick-freezing area 3, a main evaporator 11, a refrigerating fan 12, an air inlet 13, an air inlet door 31, an auxiliary fan 32, a temperature sensor 34, an air outlet 37 and a controller; the quick-freezing area 3 is arranged in the freezing chamber 1, the quick-freezing air duct 2 is connected with the quick-freezing area 3 through an air inlet 13, the refrigerating fan 12 and the main evaporator 11 are arranged in the quick-freezing air duct 2, the air inlet door 31 is arranged at the air inlet 13, and the auxiliary fan 32 and the temperature sensor 34 are arranged in the quick-freezing area 3; the controller is respectively connected with the refrigerating fan 12, the auxiliary fan 32, the temperature sensor 34, the air inlet door 31 and the main evaporator 11; the quick-freezing temperature threshold value of the quick-freezing area 3 is smaller than the freezing temperature threshold value of the freezing chamber 1, and the time for the temperature of the quick-freezing area 3 to reach the quick-freezing temperature threshold value is smaller than the time for the temperature of the freezing chamber 1 to reach the freezing temperature threshold value; the controller is used for: acquiring the temperature of the quick-freezing area detected by the temperature sensor 34; if the temperature of the quick-freezing area reaches the starting temperature of the quick-freezing area, acquiring the operation mode of the main evaporator 11; if the operation mode of the main evaporator 11 is the standard mode, an opening instruction is sent to the refrigeration fan 12, the auxiliary fan 32 and the air inlet air door 31 to control the refrigeration fan 12, the auxiliary fan 32 and the air inlet air door 31 to be opened, and control the refrigeration fan 12 and the auxiliary fan 32 to increase the rotation speed; if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold of the quick-freezing area 3, a closing instruction is sent to the air inlet door 31 and the auxiliary fan 32 so as to control the air inlet door 31 and the auxiliary fan 32 to be closed. The problems of long time consumption of quick refrigeration of the refrigerator are solved by reducing the volume of the quick-freezing area 3 and controlling the rotating speed of the refrigerating fan 12 by the controller.
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, comprising: the device comprises a freezing chamber (1), a quick-freezing air duct (2), a quick-freezing area (3), a main evaporator (11), a refrigerating fan (12), an air inlet (13), an air inlet air door (31), an auxiliary fan (32), a temperature sensor (34), an air outlet (37) and a controller;
the quick-freezing area (3) is arranged in the freezing chamber (1), the quick-freezing air duct (2) is connected with the quick-freezing area (3) through the air inlet (13), and the air outlet (37) is arranged at the bottom of the quick-freezing area (3); the refrigerating fan (12) and the main evaporator (11) are arranged in the quick-freezing air duct (2), the air inlet door (31) is arranged in the air inlet (13), and the auxiliary fan (32) and the temperature sensor (34) are arranged in the quick-freezing area (3); the controller is respectively connected with the refrigerating fan (12), the auxiliary fan (32), the temperature sensor (34), the air inlet door (31) and the main evaporator (11); the quick-freezing temperature threshold value of the quick-freezing area (3) is smaller than the freezing temperature threshold value of the freezing chamber (1), and the time for the temperature of the quick-freezing area (3) to reach the quick-freezing temperature threshold value is smaller than the time for the temperature of the freezing chamber (1) to reach the freezing temperature threshold value;
the controller is used for:
acquiring the temperature of a quick-freezing area detected by the temperature sensor (34);
if the temperature of the quick-freezing area reaches the starting temperature of the quick-freezing area, acquiring an operation mode of the main evaporator (11);
if the operation mode of the main evaporator (11) is a standard mode, sending opening instructions to the refrigerating fan (12), the auxiliary fan (32) and the air inlet air door (31) so as to control the refrigerating fan (12), the auxiliary fan (32) and the air inlet air door (31) to be opened and control the refrigerating fan (12) and the auxiliary fan (32) to increase the rotating speed;
and if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold value of the quick-freezing area (3), sending a closing instruction to the air inlet air door (31) and the auxiliary fan (32) so as to control the air inlet air door (31) and the auxiliary fan (32) to be closed.
2. The refrigerator according to claim 1, characterized in that it further comprises an auxiliary evaporator (33), said auxiliary evaporator (33) being arranged on top of said quick-freezing zone (3).
3. The refrigerator of claim 2, further comprising a refrigeration system comprising a compressor train, an anti-condensation tube, a condenser, a filter, a capillary tube; the outlet end of the compressor unit is connected with the inlet end of the anti-condensation pipe; the outlet end of the anti-condensation pipe is connected with the inlet end of the condenser, the outlet end of the condenser is connected with the inlet end of the filter, the outlet end of the filter is connected with the inlet end of the capillary, the outlet end of the capillary is connected with the inlet end of the main evaporator (11), the outlet end of the main evaporator (11) is connected with the inlet end of the auxiliary evaporator (33), and the outlet end of the auxiliary evaporator (33) is connected with the inlet end of the compressor unit.
4. A refrigerator according to claim 3, further comprising a defrosting sensor (38), the defrosting sensor (38) being connected to the controller;
the controller is further configured to:
-acquiring an operating mode of the main evaporator (11) detected by the defrosting sensor (38);
if the operation mode of the main evaporator (11) is a defrosting mode, a closing instruction is sent to the air inlet door (31), and an opening instruction is sent to the auxiliary fan (32) so as to control the main evaporator (11) to operate for a first preset time.
5. The refrigerator of claim 4, wherein the controller is further configured to:
recording defrosting time points;
after the defrosting time point is obtained, recording the accumulated running time of the compressor;
and if the accumulated running time is longer than the preset interval time, sending a closing instruction to the air inlet door (31), and sending an opening instruction to the auxiliary fan (32) so as to control the auxiliary evaporator (33) to run for a second preset time.
6. The refrigerator according to claim 1, characterized in that the quick-freezing zone (3) further comprises a heat-absorbing layer (36), the heat-absorbing layer (36) is made of metal, and the heat-absorbing layer (36) is arranged at the bottom of the quick-freezing zone (3).
7. The refrigerator according to claim 1, characterized in that the quick-freezing zone (3) further comprises a heat preservation layer (35), and the heat preservation layer (35) is attached to the outer surface of the quick-freezing zone (3).
8. A refrigerator temperature control method, characterized by being applied to the refrigerator of any one of claims 1 to 7, comprising:
acquiring the temperature of a quick-freezing area detected by a temperature sensor (34);
if the temperature of the quick-freezing area reaches the starting temperature of the quick-freezing area, acquiring an operation mode of the main evaporator (11);
if the operation mode of the main evaporator (11) is a standard mode, an opening instruction is sent to a refrigerating fan (12), an auxiliary fan (32) and an air inlet air door (31) to control the refrigerating fan (12), the auxiliary fan (32) and the air inlet air door (31) to be opened, and control the refrigerating fan (12) and the auxiliary fan (32) to increase the rotating speed;
and if the temperature of the quick-freezing area is lower than the quick-freezing temperature threshold value of the quick-freezing area (3), sending a closing instruction to the air inlet air door (31) and the auxiliary fan (32) so as to control the air inlet air door (31) and the auxiliary fan (32) to be closed.
9. The refrigerator temperature control method of claim 8, further comprising:
-acquiring an operating mode of the main evaporator (11) detected by a defrosting sensor (38);
if the operation mode of the main evaporator (11) is a defrosting mode, a closing instruction is sent to the air inlet door (31), and an opening instruction is sent to the auxiliary fan (32) so as to control the main evaporator (11) to defrost for a first preset time.
10. The refrigerator temperature control method of claim 9, further comprising:
recording defrosting time points;
acquiring the interval time between the on time of the compressor and the defrosting time point;
and if the interval time is longer than the preset interval time, sending a closing instruction to the air inlet air door (31), and sending an opening instruction to the auxiliary fan (32) so as to control the auxiliary evaporator (33) to defrost for a second preset time.
CN202311244898.2A 2023-09-25 2023-09-25 Refrigerator and temperature control method Pending CN117366982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311244898.2A CN117366982A (en) 2023-09-25 2023-09-25 Refrigerator and temperature control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311244898.2A CN117366982A (en) 2023-09-25 2023-09-25 Refrigerator and temperature control method

Publications (1)

Publication Number Publication Date
CN117366982A true CN117366982A (en) 2024-01-09

Family

ID=89399401

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311244898.2A Pending CN117366982A (en) 2023-09-25 2023-09-25 Refrigerator and temperature control method

Country Status (1)

Country Link
CN (1) CN117366982A (en)

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