CN117739588A - Air suction type refrigerator and control method thereof - Google Patents

Abstract

The invention discloses an air suction type refrigerator and a control method thereof, wherein the air suction type refrigerator comprises: a fresh-keeping chamber; the pre-refrigerating chamber is connected with one side of the fresh-keeping chamber, a first air extracting device and a first air vent are arranged between the pre-refrigerating chamber and the fresh-keeping chamber, the first air extracting device can extract air in the fresh-keeping chamber to the pre-refrigerating chamber, and cold air in the pre-refrigerating chamber can be input into the fresh-keeping chamber from the first air vent. According to the invention, the fresh-keeping chamber and the pre-cooling chamber are arranged, the first air extracting device and the first air vent are arranged between the pre-cooling chamber and the fresh-keeping chamber, the air in the fresh-keeping chamber is extracted to the pre-cooling chamber through the first air extracting device, the air pressure in the pre-cooling chamber is increased, the cold air stored in the pre-cooling chamber is input into the fresh-keeping chamber through the first air vent under the action of the air pressure, the cold air can be conveyed to the fresh-keeping chamber in a more uniform wind direction, the pre-cooling chamber is utilized to store the cold air more suitable for storing food temperature, the direct blowing of the cold air with lower temperature to the food is avoided, and the food storage effect of the fresh-keeping chamber is improved.

Description

Air suction type refrigerator and control method thereof

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to an air suction type refrigerator and a control method thereof.

Background

The refrigerator is one of the most important life electric appliances in daily life, the traditional air-cooled frostless refrigerator generally adopts fan blowing type refrigeration, and cool air generated by refrigeration is blown to each storage compartment of the refrigerator by utilizing the fan in the refrigerator. However, for the refrigerator adopting the fan blowing type refrigeration, because the cool air blown out by the fan has certain directivity, the air exchanging effect of the whole storage compartment is uneven, the food facing the air outlet of the fan can be blown by larger wind force, the air drying speed of the food can be accelerated, and meanwhile, the food directly blown by the cool air is more easily frozen due to the lower temperature of the cool air blown out by the fan. Therefore, how to make the cool air cooled by the refrigerator be delivered to the storage compartment of the refrigerator in a more uniform wind direction at a more proper temperature is a problem to be solved by those skilled in the art.

Disclosure of Invention

The embodiment of the invention provides an air suction type refrigerator and a control method thereof, and aims to achieve the technical effect that cold air refrigerated by the refrigerator is conveyed to a storage room in a more uniform wind direction at a more proper temperature.

In a first aspect, an embodiment of the present invention provides an air-breathing refrigerator, including:

a fresh-keeping chamber;

the pre-refrigerating chamber is connected with one side of the fresh-keeping chamber, a first air extracting device and a first air vent are arranged between the pre-refrigerating chamber and the fresh-keeping chamber, the first air extracting device can extract air in the fresh-keeping chamber to the pre-refrigerating chamber, and cold air in the pre-refrigerating chamber can be input into the fresh-keeping chamber from the first air vent.

Preferably, the fresh-keeping chamber is provided with an extraction opening, the first air extractor is connected to the extraction opening, and the extraction opening is arranged above the first air vent.

Preferably, the cooling system further comprises an evaporation chamber, wherein the evaporation chamber is connected with the prefabricated cooling chamber.

Preferably, the first vent is provided with a first communication valve for opening and closing the first vent.

Preferably, the temperature sensor further comprises a first temperature sensor and a second temperature sensor;

the first temperature sensor is arranged in the fresh-keeping chamber, and the second temperature sensor is arranged in the prefabricated cooling chamber.

Preferably, the refrigerator further comprises a first door switch detection device, wherein the first door switch detection device is arranged at the closed position of the refrigerator door of the fresh-keeping chamber.

Preferably, the refrigerator further comprises a freezing chamber;

the evaporation chamber is connected with one side of the freezing chamber, and a second air extraction device and a second air vent are arranged between the evaporation chamber and the freezing chamber; the second air pumping device can pump air in the freezing chamber to the evaporation chamber, and cold air in the evaporation chamber can be input into the freezing chamber from the second air vent.

In a second aspect, an embodiment of the present invention further provides a control method, which is applied to the air suction refrigerator described in any one of the above, where the control method includes:

storing cool air by using the prefabricated cool chamber in the operation process of the refrigerator;

detecting the temperature of the fresh food compartment;

when the temperature of the fresh-keeping chamber is detected to be higher than a first preset temperature, the first air extractor is started to pump the air in the fresh-keeping chamber into the pre-cooling chamber so as to enable the cold air stored in the pre-cooling chamber to enter the fresh-keeping chamber through the first air vent.

Preferably, said storing cool air using said prefabricated cool room during operation of the refrigerator includes:

in the running process of the refrigerator, refrigerating is carried out through the evaporation chamber to obtain cold air, and the cold air is conveyed to the prefabricated cold chamber;

and detecting the temperature of the prefabricated cold chamber, and stopping conveying cold air to the prefabricated cold chamber when the temperature of the prefabricated cold chamber is lower than a second preset temperature.

Preferably, the method further comprises:

detecting the closing state of a refrigerator door of the fresh-keeping chamber in the running process of the refrigerator;

when the refrigerator door of the fresh-keeping chamber is in an open state, the first air extractor is closed until the refrigerator door of the fresh-keeping chamber is in a closed state.

The embodiment of the invention discloses an air suction type refrigerator and a control method thereof, wherein the air suction type refrigerator comprises: a fresh-keeping chamber; the pre-refrigerating chamber is connected with one side of the fresh-keeping chamber, a first air extracting device and a first air vent are arranged between the pre-refrigerating chamber and the fresh-keeping chamber, the first air extracting device can extract air in the fresh-keeping chamber to the pre-refrigerating chamber, and cold air in the pre-refrigerating chamber can be input into the fresh-keeping chamber from the first air vent. According to the embodiment of the invention, the fresh-keeping chamber and the pre-cooling chamber connected with one side of the fresh-keeping chamber are arranged in the air suction type refrigerator, the first air suction device and the first air vent are arranged between the pre-cooling chamber and the fresh-keeping chamber, and the air in the fresh-keeping chamber is sucked to the pre-cooling chamber through the first air suction device, so that the air pressure in the pre-cooling chamber is increased, and the stored cold air in the pre-cooling chamber is input to the fresh-keeping chamber through the first air vent under the action of the air pressure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an air suction type refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart of a control method according to an embodiment of the present invention;

FIG. 3 is a schematic sub-flowchart of a control method according to an embodiment of the present invention;

fig. 4 is another schematic flow chart of a control method according to an embodiment of the present invention.

The marks in the figure are as follows: 10. a fresh-keeping chamber; 11. a first air extraction device; 12. a first vent; 13. a first temperature sensor; 14. a first door switch detection device; 20. a pre-refrigeration chamber; 21. a second temperature sensor; 30. an evaporation chamber; 40. a freezing chamber; 41. a second air extraction device; 42. a second vent; 43. a third temperature sensor; 44. a second door switch detection device; 50. a compressor.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an air suction refrigerator according to an embodiment of the present invention, where the air suction refrigerator specifically includes:

a fresh-keeping chamber 10;

the pre-refrigerating chamber 20 is connected with one side of the fresh-keeping chamber 10, a first air extracting device 11 and a first air vent 12 are arranged between the pre-refrigerating chamber 20 and the fresh-keeping chamber 10, the first air extracting device 11 can extract the air in the fresh-keeping chamber 10 to the pre-refrigerating chamber 20, and the cold air of the pre-refrigerating chamber 20 can be input into the fresh-keeping chamber 10 from the first air vent 12.

In this embodiment, a fresh keeping chamber 10 and a pre-cooling chamber 20 are disposed in the air-suction refrigerator, wherein the pre-cooling chamber 20 is connected to one side of the fresh keeping chamber 10, and a first air extracting device 11 and a first air vent 12 are disposed between the pre-cooling chamber 20 and the fresh keeping chamber 10, on the basis, the air with higher temperature in the fresh keeping chamber 10 is extracted to the pre-cooling chamber 20 under the action of the first air extracting device 11, the air pressure in the pre-cooling chamber 20 is raised, and the cold air pre-stored in the pre-cooling chamber 20 is input to the fresh keeping chamber 10 through the first air vent 12 under the action of the air pressure, thereby completing the air replacement activity of the fresh keeping chamber 10.

For the conventional fan blowing type refrigerator, the wind force on the front side of the fan is far greater than the wind force on the back side of the fan and has a certain directivity, because the wind force blown out by the fan is generated at the fan blade, the back side of the fan forms a backflow phenomenon under the action of the rotation of the fan, so that the wind force on the back side of the fan is weak, and therefore, for the embodiment, the air in the fresh-keeping chamber 10 is pumped away by the first air pumping device 11, so that the larger wind force can be avoided in the fresh-keeping chamber 10, and then the cold air in the prefabricated cold chamber 20 is conveyed to the fresh-keeping chamber 10 in a more gentle manner through the first air vent 12 by utilizing the action of air pressure, compared with the case that the cold air is directly blown into the fresh-keeping chamber 10 through the fan for air replacement, the embodiment can convey the cold air to the fresh-keeping chamber 10 in a more even and gentle manner, so that the air drying speed of foods is avoided from being excessively accelerated.

Meanwhile, in a specific application scenario, in order to reduce the temperature in the fresh-keeping chamber 10, cold air with a lower temperature needs to be input into the fresh-keeping chamber 10, for example, the current temperature in the fresh-keeping chamber 10 is 6 degrees, and the temperature required for storing foods is 3 degrees, then gas with a temperature of 0 degrees or lower needs to be input into the fresh-keeping chamber 10 at this time, so that the temperature in the fresh-keeping chamber 10 can be reduced by neutralizing the original gas, but when the gas with a too low temperature blows out the fresh-keeping chamber 10, foods near the air inlet can be frozen out, and too large temperature difference of the gas can also cause condensed water to be generated in the fresh-keeping chamber 10, so that the food spoiling speed is increased or the sanitary state of the fresh-keeping chamber 10 is reduced. In addition, in the suction refrigerator, the side where the fresh food compartment 10 and the pre-cooling compartment 20 meet is one side wall of the fresh food compartment 10, that is, the pre-cooling compartment 20 is provided at the rear surface of the fresh food compartment 10.

In an embodiment, the fresh food compartment 10 is provided with an air extraction opening, the first air extraction device 11 is connected to the air extraction opening, and the air extraction opening is disposed above the first air vent 12.

In this embodiment, an extraction opening for extracting the gas in the fresh-keeping chamber 10 is disposed on the fresh-keeping chamber 10, the extraction opening is connected with the first extraction device 11, the gas extracted from the fresh-keeping chamber 10 by the first extraction device 11 is conveyed to the pre-cooling chamber 20 through the extraction opening for gas replacement, the extraction opening is disposed above the first air vent 12, specifically, the extraction opening and the first air vent 12 are both disposed on one side wall of the fresh-keeping chamber 10 and the pre-cooling chamber 20, and the extraction opening is higher than the first air vent 12, on the basis, since the density of the gas with higher temperature is higher, the cold gas output from the pre-cooling chamber 20 enters the fresh-keeping chamber 10 through the first air vent 12, the gas with higher temperature in the fresh-keeping chamber 10 is extruded upwards from the bottom end of the fresh-keeping chamber 10, so that the gas with higher temperature flows upwards to the height of the extraction opening, and is extracted to the pre-cooling chamber 20 through the first extraction device 11, and the cold gas stored in the pre-cooling chamber 20 is deposited in advance in the pre-cooling chamber 20 due to the density is deposited on the bottom end 20 and enters the fresh-keeping chamber 10 through the first air vent 10.

It should be noted that, the air extraction opening in this embodiment is disposed above the first air vent 12, which means that the relative height of the air extraction opening is higher than the relative height of the first air vent 12, so that the air extracted from the fresh food compartment 10 will be located at the upper end of the pre-cooling compartment 20 when entering the pre-cooling compartment 20, the specific positions of the air extraction opening and the first air vent 12 may be that the air extraction opening is disposed at the top of the fresh food compartment 10, the first air vent 12 is disposed at the bottom of the fresh food compartment 10, and the height difference between the air extraction opening and the first air vent 12 may be set according to the actual situation on the premise of ensuring that the relative height of the air extraction opening is higher than the relative height of the first air vent 12, and the air extraction opening is not limited to be disposed directly above the first air vent 12. In a specific application scenario, the first air extraction device 11 may be disposed in the air extraction opening.

In a specific embodiment, the air extracting device may be disposed in the fresh-keeping chamber 10, and the first air extracting device 11 and the air extracting opening are connected through an air duct, the air extracted from the fresh-keeping chamber 10 firstly enters the air duct through the first air extracting device 11, and then is transmitted through the air duct and then is output from the air extracting opening to the pre-cooling chamber 20, where the first air extracting device 11 is specifically disposed may be set according to the specific structure of the fresh-keeping chamber 10, for example, the pre-cooling chamber 20 is generally disposed on a side of the refrigerator, which is far away from the refrigerator door, so that the first air extracting device 11 may be disposed on a side close to the pre-cooling chamber 20, or may be disposed on a side close to the refrigerator door of the fresh-keeping chamber 10, and only the first air extracting device 11 is required to be disposed above the first air vent 12 and can be connected with the air extracting opening, so that the air with a higher temperature in the fresh-keeping chamber 10 can be ensured to be pumped away from the air with a higher temperature in advance under the condition that the air with a higher temperature in the fresh-keeping chamber 10 is pressed upward by the cold air.

Alternatively, the first air extractor 11 may be disposed in the pre-cooling chamber 20, the air extracted from the fresh-keeping chamber 10 enters the air duct through the air extracting opening, and then the air duct is transmitted to the pre-cooling chamber 20 from the first air extractor 11, it will be understood that the first air extractor 11 may not be disposed in the fresh-keeping chamber 10, and the air in the fresh-keeping chamber 10 may be extracted by connecting the air duct with the air extracting opening, and in this case, the first air extractor 11 needs to be disposed above the first air vent 12 to avoid that the air with a relatively high temperature in the fresh-keeping chamber 10 is pumped to the pre-cooling chamber 20 and then is conveyed back to the fresh-keeping chamber 10.

That is, the first air extractor 11 is required to be disposed above the first air vent 12, either in the air extraction opening, in the fresh food compartment 10, or in the pre-cooling compartment 20.

In another embodiment, a filter screen may be further disposed in the air extraction opening or the first air extraction device 11, so as to avoid dust or other impurities carried by food in the fresh food compartment 10 from being pumped into the pre-cooling compartment 20 during air extraction, thereby avoiding damage to the interior of the refrigerator.

Alternatively, a flow sensor may be further disposed in the air extraction opening or the first air extraction device 11 to detect the flow rate of the fresh food compartment 10 pumped to the pre-cooling compartment 20, or the flow sensor may be disposed in the first air vent 12 to detect the flow rate of the pre-cooling compartment 20 delivered to the fresh food compartment 10, so as to determine whether the refrigerator works normally according to the flow rate, for example, when the flow rate sensor detects that the flow rate passing through the first air vent 12 is smaller, it indicates that the first air vent 12 may be blocked, and immediate processing is required to ensure the normal working of the refrigerator.

In one embodiment, the suction refrigerator further includes an evaporation chamber 30, and the evaporation chamber 30 is connected to the pre-cooling chamber 20.

In the present embodiment, an evaporation chamber 30 connected to the pre-cooling chamber 20 is provided in the suction type refrigerator, and the evaporation chamber 30 is used to absorb heat of the inside of the refrigerator and to manufacture cold air to be transferred to the pre-cooling chamber 20, thereby keeping the inside of the refrigerator at a low temperature. In a specific application scenario, the evaporating chamber 30 and the pre-cooling chamber 20 may be connected through a ventilation pipeline or other structures, and a connecting valve or other structure may be further provided to control the conduction or closing of the channel between the evaporating chamber 30 and the pre-cooling chamber 20.

In addition, in a specific embodiment, a ventilation pipe may be provided to connect the evaporation chamber 30 with the air extraction opening, so that the air extracted from the fresh food chamber 10 by the first air extractor 11 can be delivered to the evaporation chamber 30 through the air extraction opening, and the air pressure in the evaporation chamber 30 is increased, so that the cold air produced by the evaporation chamber 30 is delivered into the pre-refrigeration chamber 20 for storage under the action of the air pressure.

In another embodiment, the suction refrigerator further includes a compressor 50, the compressor 50 is disposed at the bottom of the suction refrigerator and connected to the evaporation chamber 30, and the compressor 50 is a power source for refrigerating the refrigerator, and is capable of compressing and heating the refrigerant. When the liquid refrigerant passes through the evaporator (disposed in the evaporation chamber 30), the liquid refrigerant absorbs heat to become a gaseous refrigerant, and is then sucked into the compressor 50 again to be compressed, so as to obtain a high-pressure gaseous refrigerant, and the heat is released through the condenser to become the liquid refrigerant, thereby completing the refrigeration cycle.

In an embodiment, the first vent 12 is provided with a first communication valve for opening and closing the first vent 12.

In this embodiment, a first communication valve is disposed at the first air vent 12, and the opening and closing of the first air vent 12 can be controlled by the first communication valve, so as to control the pre-cooling chamber 20 to deliver cold air to the fresh-keeping chamber 10, when the temperature inside the fresh-keeping chamber 10 needs to be reduced, the first communication valve is opened, so that the cold air stored in the pre-cooling chamber 20 is input into the fresh-keeping chamber 10 through the first air vent 12, and when the temperature inside the fresh-keeping chamber 10 does not need to be reduced, the first communication valve is closed, so as to avoid wasting resources.

In a specific embodiment, the first communication valve may be a one-way communication valve, so that when the first communication valve is opened, cold air only flows from the pre-cooling chamber 20 to the fresh-keeping chamber 10, but does not flow back from the fresh-keeping chamber 10 to the pre-cooling chamber 20, thereby ensuring the cooling effect of the fresh-keeping chamber 10.

In another embodiment, the first communication valve may be a pressure regulating valve, when the temperature inside the fresh-keeping chamber 10 needs to be reduced, the first air extractor 11 is used to pump the air with a higher temperature inside the fresh-keeping chamber 10 to the pre-cooling chamber 20, so as to raise the air pressure inside the pre-cooling chamber 20, when the air pressure inside the pre-cooling chamber 20 reaches the preset threshold value, the pressure regulating valve is automatically opened, and the cold air stored in the pre-cooling chamber 20 is input into the fresh-keeping chamber 10 through the first air vent 12, without adding additional control power or control means.

Of course, in other embodiments, other kinds of valves may be used as the first communication valve according to actual requirements to control the opening and closing of the first air port 12.

In an embodiment, the suction refrigerator further includes a first temperature sensor 13 and a second temperature sensor 21;

the first temperature sensor 13 is disposed in the fresh food compartment 10, and the second temperature sensor 21 is disposed in the pre-cooling compartment 20.

In the present embodiment, a first temperature sensor 13 is provided in the fresh food compartment 10, and the temperature of the fresh food compartment 10 is detected by the first temperature sensor 13, thereby determining whether air extraction from the fresh food compartment 10 is required, and delivering cool air to the fresh food compartment 10; a second temperature sensor 21 is also provided in the pre-cooling chamber 20, and the temperature of the pre-cooling chamber 20 is detected by the second temperature sensor 21 to determine whether the cool air stored in the pre-cooling chamber 20 reaches a preset temperature.

In a specific application scenario, the first temperature sensor 13 and the second temperature sensor 21 may be respectively disposed at a middle position in the fresh food compartment 10 and a middle position in the pre-cooling compartment 20, so as to obtain temperatures in the fresh food compartment 10 and the pre-cooling compartment 20 that are closer to average values, respectively, for example, if the second temperature sensor 21 is disposed at a position that is too close to the air extraction opening, when the first air extraction device 11 is turned on, the temperature detected by the second temperature sensor 21 may be closer to the temperature of the air extracted from the fresh food compartment 10, rather than the average temperature in the whole pre-cooling compartment 20, and the placement at the middle position may avoid that the temperature detected by the temperature sensor is too inaccurate to affect the storage performance of the refrigerator.

In one embodiment, the air suction type refrigerator further comprises a first door switch detection device 14, and the first door switch detection device 14 is disposed at the closed position of the refrigerator door of the fresh food compartment 10.

In this embodiment, the closed position of the refrigerator door of the fresh food compartment 10 is further provided with a first door opening/closing detecting device 14 for detecting whether the refrigerator door of the fresh food compartment 10 is closed, so as to control the gas replacement according to the closed state of the refrigerator door of the fresh food compartment 10. For example, if the refrigerator door of the fresh keeping chamber 10 is in an open state, at this time, if the first air extractor 11 is turned on to perform air extraction, a large amount of high temperature air outside the refrigerator is extracted to the prefabricated cold chamber 20, and the cold component output from the first air vent 12 is lost to the outside of the refrigerator, so that resource waste is caused, and on the basis of the first door switch detection device 14, gas replacement can be stopped when the refrigerator door of the fresh keeping chamber 10 is detected to be in an open state, and then the air replacement can be continued after the refrigerator door of the fresh keeping chamber 10 is closed, so that resource waste can be avoided.

In a specific embodiment, the first door opening and closing detecting device 14 may employ a pressure sensor to determine whether the refrigerator door is closed by detecting the pressure at the refrigerator door position of the fresh food compartment 10, specifically, if the pressure is detected, the refrigerator door of the fresh food compartment 10 is determined to be in a closed state, and if the pressure is not detected, the refrigerator door of the fresh food compartment 10 is determined to be in an open state.

In another embodiment, the first door opening and closing detecting device 14 may also use an optical sensor to determine whether the refrigerator door of the fresh food compartment 10 is closed according to the detected light intensity. Of course, in the specific embodiment, other kinds of structures, components or sensors may be used as the first door switch detecting device 14 according to actual requirements.

In one embodiment, the suction refrigerator further includes a freezing chamber 40;

the evaporating chamber 30 is connected with one side of the freezing chamber 40, and a second air extracting device 41 and a second air vent 42 are arranged between the evaporating chamber 30 and the freezing chamber 40; the second air pumping device 41 may pump air in the freezing chamber 40 to the evaporating chamber 30, and cool air of the evaporating chamber 30 may be inputted into the freezing chamber 40 through the second air vent 42.

In the present embodiment, the evaporation chamber 30 is connected to one side of the freezing chamber 40, and a second air pumping device 41 for pumping air in the freezing chamber 40 to the evaporation chamber 30 and a second air vent 42 for inputting cool air of the evaporation chamber 30 to the freezing chamber 40 are provided between the evaporation chamber 30 and the freezing chamber 40. When the temperature of the freezing chamber 40 needs to be reduced, the second air extractor 41 is turned on to extract the air in the freezing chamber 40 to the evaporating chamber 30, so that the air pressure in the evaporating chamber 30 is increased, and the cold air in the evaporating chamber 30 is input into the freezing chamber 40 from the second air vent 42 under the action of the air pressure, thereby reducing the temperature of the freezing chamber 40.

In a specific embodiment, the evaporating chamber 30 is disposed on the back of the freezing chamber 40, connected to the chamber wall on one side of the freezing chamber 40, and is also located below the fresh food chamber 10, that is, in the air-breathing refrigerator, the fresh food chamber 10 is disposed on the same side as the freezing chamber 40 and the fresh food chamber 10 is disposed above the freezing chamber 40, the pre-cooling chamber 20 is disposed on the same side as the evaporating chamber 30 and above the evaporating chamber 30, the pre-cooling chamber 20 and the evaporating chamber 30 are respectively located on the back of the fresh food chamber 10 and the freezing chamber 40, and the side of the fresh food chamber 10 away from the pre-cooling chamber 20 and the side of the freezing chamber 40 away from the evaporating chamber 30 are the positions where the refrigerator door is disposed.

In another embodiment, the suction refrigerator further includes a third temperature sensor 43 and a second door switch detecting device 44, the third temperature sensor 43 is used for detecting the temperature of the freezing chamber 40, so as to determine whether the temperature of the freezing chamber 40 needs to be reduced according to the detected temperature, and when to stop reducing the temperature of the freezing chamber 40; the second door opening and closing detecting means 44 serves to detect a closed state of the refrigerator door of the freezing chamber 40, avoiding waste of resources due to cold air being transmitted when the refrigerator door of the freezing chamber 40 is opened.

As shown in fig. 2, the embodiment of the present invention further provides a control method applied to the air conditioning system described in any one of the above, where the control method includes steps S201 to S203.

S201, storing cold air by using the prefabricated cold chamber in the refrigerator operation process;

s202, detecting the temperature of the fresh-keeping chamber;

and S203, when the temperature of the fresh-keeping chamber is detected to be higher than a first preset temperature, starting the first air extractor to pump the air in the fresh-keeping chamber into the pre-cooling chamber so as to enable the cold air stored in the pre-cooling chamber to enter the fresh-keeping chamber through the first air vent.

In this embodiment, firstly, the pre-cooling chamber 20 is utilized to store cold air in advance during the operation process of the refrigerator, then the first temperature sensor 13 is utilized to detect the temperature of the fresh-keeping chamber 10, when the detected temperature of the fresh-keeping chamber 10 is higher than the first preset temperature, the first air extractor 11 is started to suck the air in the fresh-keeping chamber 10 into the pre-cooling chamber 20, so that the cold air stored in the pre-cooling chamber 20 is input into the fresh-keeping chamber 10 through the first air vent 12, the temperature in the fresh-keeping chamber 10 is reduced, and the cold air in the pre-cooling chamber 20 is conveyed to the fresh-keeping chamber 10 in a more gentle manner through the characteristic of air extraction type air replacement.

It will be appreciated that when the first temperature sensor 13 detects that the temperature of the fresh food compartment 10 has not exceeded the first predetermined temperature, the supply of cold air into the fresh food compartment 10 is stopped. The temperature setting is not particularly limited, and for example, the first preset temperature may be set to 5 °, and then the cold air may be stopped from being fed into the fresh food compartment 10 when the first temperature sensor 13 detects that the temperature of the fresh food compartment 10 is 4 °, and the cold air may be continuously fed before that, so as to maintain the temperature of the fresh food compartment 10 or continuously reduce the temperature of the fresh food compartment 10.

In a specific application scenario, a specific value of the first preset temperature may also be set according to a specific food storage requirement or an actual application condition.

In one embodiment, as shown in fig. 3, the step S201 includes steps S301 to S302.

S301, in the refrigerator operation process, refrigerating is carried out through the evaporating chamber 30 to obtain cold air, and the cold air is conveyed to the prefabricated cold chamber 20;

s302, detecting the temperature of the prefabricated cold room 20, and stopping delivering cold air to the prefabricated cold room 20 when the temperature of the prefabricated cold room 20 is lower than a second preset temperature.

In this embodiment, the evaporation chamber 30 is used to cool the refrigerator during operation to obtain cool air, and the cool air is delivered into the pre-cooling chamber 20 for storage, then the second temperature sensor 21 is used to detect the temperature of the pre-cooling chamber 20, when the second temperature sensor 21 detects that the temperature of the pre-cooling chamber 20 is lower than the second preset temperature, it represents that the pre-cooling chamber 20 and a sufficient amount of cool air is stored, and at this time, the cool air delivery to the pre-cooling chamber 20 is stopped.

In addition, when the second temperature sensor 21 detects that the temperature of the pre-cooling chamber 20 is raised to a temperature at which the cold air needs to be stored again, the cold air is again supplied to the pre-cooling chamber 20 by the evaporation chamber 30, for example, a second preset temperature may be set to 4 °, and when the second temperature sensor 21 detects that the temperature of the pre-cooling chamber 20 is greater than 4 °, the cold air is again supplied to the pre-cooling chamber 20 by the evaporation chamber 30.

Referring to fig. 4, in an embodiment, the control method further includes steps S401 to S402:

s401, detecting the closing state of a refrigerator door of the fresh keeping chamber 10 in the refrigerator operation process;

s402, when the refrigerator door of the fresh keeping chamber 10 is in an open state, the first air extractor 11 is closed until the refrigerator door of the fresh keeping chamber 10 is in a closed state.

In this embodiment, the first door switch detecting device 14 is used to detect the closed state of the refrigerator door of the fresh keeping chamber 10 during the operation process of the refrigerator, and then when the refrigerator door of the fresh keeping chamber 10 is detected to be in the open state, the first air extracting device 11 is closed to stop air extracting from the fresh keeping chamber 10 until the first door switch detecting device 14 detects that the refrigerator door of the fresh keeping chamber 10 is in the closed state, and air extracting is performed again, so that the waste of resources is avoided.

In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.

It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. An air-breathing refrigerator, characterized in that it comprises:

a fresh-keeping chamber;

the pre-refrigerating chamber is connected with one side of the fresh-keeping chamber, a first air extracting device and a first air vent are arranged between the pre-refrigerating chamber and the fresh-keeping chamber, the first air extracting device can extract air in the fresh-keeping chamber to the pre-refrigerating chamber, and cold air in the pre-refrigerating chamber can be input into the fresh-keeping chamber from the first air vent.

2. The suction type refrigerator as claimed in claim 1, wherein the fresh food compartment is provided with an air extraction opening, the first air extraction device is connected to the air extraction opening, and the air extraction opening is disposed above the first air vent.

3. The suction type refrigerator as claimed in claim 1, further comprising an evaporation chamber connected to the pre-cooling chamber.

4. The suction type refrigerator as claimed in claim 1, wherein the first vent is provided with a first communication valve for opening and closing the first vent.

5. The suction type refrigerator of claim 1, further comprising a first temperature sensor and a second temperature sensor;

the first temperature sensor is arranged in the fresh-keeping chamber, and the second temperature sensor is arranged in the prefabricated cooling chamber.

6. The suction type refrigerator as claimed in claim 1, further comprising a first door opening and closing detection means provided at a refrigerator door closure position of the fresh food compartment.

7. The suction type refrigerator as claimed in claim 3, further comprising a freezing chamber;

the evaporation chamber is connected with one side of the freezing chamber, and a second air extraction device and a second air vent are arranged between the evaporation chamber and the freezing chamber; the second air pumping device can pump air in the freezing chamber to the evaporation chamber, and cold air in the evaporation chamber can be input into the freezing chamber from the second air vent.

8. A control method applied to the suction refrigerator as claimed in any one of claims 1 to 7, wherein the control method comprises:

storing cool air by using the prefabricated cool chamber in the operation process of the refrigerator;

detecting the temperature of the fresh food compartment;

when the temperature of the fresh-keeping chamber is detected to be higher than a first preset temperature, the first air extractor is started to pump the air in the fresh-keeping chamber into the pre-cooling chamber so as to enable the cold air stored in the pre-cooling chamber to enter the fresh-keeping chamber through the first air vent.

9. The control method according to claim 8, applied to the suction refrigerator according to claim 3, wherein the storing of the cold air using the prefabricated cold room during the operation of the refrigerator comprises:

in the running process of the refrigerator, refrigerating is carried out through the evaporation chamber to obtain cold air, and the cold air is conveyed to the prefabricated cold chamber;

and detecting the temperature of the prefabricated cold chamber, and stopping conveying cold air to the prefabricated cold chamber when the temperature of the prefabricated cold chamber is lower than a second preset temperature.

10. The control method according to claim 8, applied to the suction refrigerator according to claim 6, further comprising:

detecting the closing state of a refrigerator door of the fresh-keeping chamber in the running process of the refrigerator;

when the refrigerator door of the fresh-keeping chamber is in an open state, the first air extractor is closed until the refrigerator door of the fresh-keeping chamber is in a closed state.