CN117663614A

CN117663614A - Refrigerator with a refrigerator body

Info

Publication number: CN117663614A
Application number: CN202311282148.4A
Authority: CN
Inventors: 张朋格; 付婧; 郭动; 杨春; 栾福磊
Original assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-03-08

Abstract

The application provides a refrigerator, which comprises a refrigerator body, a door body, an air-conditioning membrane assembly arranged at the top of a refrigerating chamber, a vacuum pump assembly arranged in a compressor bin and a first sterilization module arranged in the refrigerating chamber, wherein the vacuum pump assembly is started to pump air in the refrigerating chamber and exhaust the pumped air to the other compartments or the outside of the refrigerator body, and air outside the refrigerator body enters the refrigerating chamber through a circulation gap so as to at least form an air flow circulation path outside the refrigerating chamber, the vacuum pump assembly and the refrigerator body; and after the vacuum pump assembly is turned off, the first sterilization module is started, and ion groups are generated by the first sterilization module so as to remove plankton bacteria introduced by the gas entering the refrigerating chamber. The bacterial content in the refrigerating chamber is reduced, and the preservation time of food materials in the refrigerating chamber is prolonged.

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to the technical field of household appliances, in particular to a refrigerator.

Background

As an electric appliance indispensable in home life, a refrigerator is proposed as a refrigerator that prevents food from deteriorating by reducing the temperature of a wrong storage space, and at present, in order to improve the preservation quality of food materials, a refrigerator having a vacuum space, that is, a refrigerator having a vacuum-pumping device and a vacuum space for preservation of food materials is proposed.

However, there are many problems in the vacuum space, on the one hand, the vacuum space has high requirements for tightness of its outer components, the requirements for the process are increased, and the cost is increased, on the other hand, the long-time vacuum preservation can make part of the food material have bad appearance, and the meat products and polluted microorganisms can consume residual oxygen and generate carbon dioxide, so that an environment containing high-concentration carbon dioxide can be formed, which can cause the meat appearance to be purple, and the user experience is poor.

In the related art, the time for storing food is prolonged by setting a low-oxygen environment, and in the process of performing low-oxygen action on the refrigerating chamber, air outside the refrigerator body is introduced into the refrigerating chamber due to the pressure difference between the inside and the outside of the refrigerating chamber, and the food in the refrigerating chamber is affected by bacteria such as plankton and the like contained in the newly introduced air.

In view of this, the present application is presented.

Disclosure of Invention

The application provides a refrigerator, this refrigerator opens first module of disinfecting through after the new trend falls oxygen, vacuum pump subassembly work promptly after to get rid of the new trend and fall the in-process and draw the external air plankton of box of people, reduce the influence of external bacterium to eating the material, extension edible material's save time and freshness.

To this end, the present application aims to provide a refrigerator comprising:

the box body comprises a top and a bottom which are arranged along the length direction of the box body, the box body comprises a shell and an inner container, and the inner container is arranged in the shell;

the installation space is arranged between the inner container and the shell;

the heat insulation layer is arranged in the installation space and used for insulating the storage space inside the box body from the outside;

the compressor bin is arranged at the bottom of the box body;

a refrigerating chamber configured to be formed of an inner container for refrigerating and storing food materials;

a door body for opening or closing the refrigerating chamber;

a first flow gap configured as a gap at a junction of the door and the case when the door closes the refrigerator compartment;

the first air regulating membrane component is arranged at the top of the refrigerating chamber, and the permeability of the first air regulating membrane component to oxygen is faster than that of the first air regulating membrane component to nitrogen;

the vacuum pump assembly is arranged in the compressor bin and is used for exhausting air from the refrigerating chamber;

when the vacuum pump assembly works, air in the refrigerating chamber is pumped out through the first air conditioning membrane assembly;

a first sterilization module provided in the refrigerating chamber, the first sterilization module generating ion groups and/or ozone for at least removing bacteria introduced in the refrigerating chamber;

The controller is configured to:

the vacuum pump assembly is used for exhausting air from the refrigerating chamber through the first air regulating membrane assembly and exhausting the exhausted air to the outside of other compartments or the box body so as to ensure that pressure difference exists between the inside and the outside of the refrigerating chamber;

air outside the refrigerator body enters the refrigerating chamber through the circulation gap to at least form an air flow circulation path outside the refrigerator body, the vacuum pump assembly and the refrigerator body, and the air flow outside the refrigerator body enters the refrigerating chamber to replace part of air in the refrigerating chamber;

after the vacuum pump assembly is turned off, the first sterilization module is turned on, and the first sterilization module generates ion groups to remove bacteria introduced by the gas entering the refrigerating chamber.

By starting the first sterilization module after the fresh air oxygen reduction action, bacteria in the refrigerating chamber caused by a fresh air function are solved, and the low bacteria or aseptic environment in the refrigerating chamber is realized on the basis of low oxygen, so that the preservation time of food materials stored in the interior is effectively prolonged.

In some embodiments of the present application, further comprising:

the fresh-keeping drawer is arranged in the refrigerating chamber and used for storing food materials, and comprises a drawer shell and a drawer body which can be pulled relative to the drawer shell;

a second flow gap configured as a gap between the drawer body and the opening of the drawer housing after the drawer body and the drawer housing are assembled;

The second air-conditioning membrane component is arranged at the top of the refrigerating chamber, and the permeability of the second air-conditioning membrane component to oxygen is faster than that of the second air-conditioning membrane component to nitrogen;

the vacuum pump assembly is also used for pumping out the air in the fresh-keeping drawer through the second air-conditioning membrane assembly;

the second sterilization module is arranged in the fresh-keeping drawer and generates ion groups and/or ozone at least for removing bacteria introduced in the fresh-keeping drawer;

the controller is configured to:

controlling the vacuum pump assembly to pump air to the fresh-keeping drawer and discharging the pumped air to the outside of other compartments or the box body so as to ensure that the pressure difference exists between the fresh-keeping drawer and the refrigerating chamber;

air in the refrigerating chamber enters the refrigerating chamber through the second flowing gap to form an airflow circulation path outside the refrigerating chamber, the fresh-keeping drawer, the vacuum pump assembly and the box body, so that part of air in the fresh-keeping drawer is replaced;

after the vacuum pump assembly is closed, the second sterilization module is started, and ion groups are generated by the second sterilization module so as to remove bacteria brought by newly introduced gas in the fresh-keeping drawer.

In some embodiments of the present application, the refrigerator further comprises a first bacteria detection device, provided in the refrigerating chamber, for detecting the bacteria content in the refrigerating chamber;

The controller is configured to close the first sterilization module when the first bacteria detection device detects that the bacteria content reaches a first preset bacteria content, and otherwise, maintain the working state of the first sterilization module.

In some embodiments of the present application, during operation of the vacuum pump assembly, the controller is configured to:

when the bacterial content in the refrigerating chamber reaches a third preset bacterial content, starting the first sterilization module;

and when the bacterial content in the fresh-keeping drawer reaches a fourth preset bacterial content, starting the second sterilization module.

In some embodiments of the present application, the system further comprises a deodorizing module disposed within the refrigeration compartment for removing odor molecules within the refrigeration compartment;

the controller is configured to start the vacuum pump assembly when the odor concentration of the refrigerating chamber detected by the first odor detection device in the refrigerating chamber reaches a first preset odor concentration threshold value, and the vacuum pump assembly is utilized to suck air from the refrigerating chamber so as to accelerate the circulation of air flow inside and outside the refrigerating chamber;

and/or

The odor removing module is opened to decompose odor molecules in the refrigerating chamber.

In some embodiments of the present application, a door closing detection assembly for detecting whether the refrigerating compartment is in a closed state is further included;

The controller is configured to close the first sterilization module when detecting that the refrigerating chamber is opened during operation of the first sterilization module; and when the refrigerating chamber is detected to be closed again within a certain period of time, the first sterilization module is started again.

In some embodiments of the present application, the controller is configured to record an opening time of the refrigerator compartment after the refrigerator compartment is opened during operation of the first sterilization module;

when the opening time of the refrigerating chamber reaches the preset opening time, the first sterilization module is closed;

and when the opening time of the refrigerating chamber does not reach the preset opening time, the first sterilization module is kept to be opened.

In some embodiments of the present application, further comprising:

the back air duct is arranged at the back of the box body and is communicated with the refrigerating chamber and the fresh-keeping drawer;

the refrigerating fan is arranged in the back air duct and used for accelerating the airflow flow of the back air duct;

the controller is configured to turn on the refrigeration fan to accelerate airflow within the refrigeration compartment during operation of the vacuum pump assembly and/or the first sterilization module.

In some embodiments of the present application, the first sterilization module is turned on periodically to sterilize the refrigerator compartment during storage of the food material in the refrigerator compartment;

And during the process of storing the food materials in the fresh-keeping drawer, the second sterilization module is started at fixed time to sterilize the fresh-keeping drawer.

In some embodiments of the present application, further comprising:

the oxygen concentration detection device is arranged in the refrigerating chamber and/or the fresh-keeping drawer and is used for detecting the oxygen concentration of the refrigerating chamber and/or the fresh-keeping drawer;

the controller is configured to stop the vacuum pump assembly from exhausting the refrigerating chamber when the oxygen concentration in the refrigerating chamber reaches the upper limit value of the first required oxygen content range during the process of exhausting the refrigerating chamber by the vacuum pump assembly;

and/or

And stopping the vacuum pump assembly from exhausting the fresh-keeping drawer when the oxygen concentration in the fresh-keeping drawer reaches the upper limit value of the second required oxygen content range in the process of exhausting the fresh-keeping drawer by the vacuum pump assembly.

The embodiment of the application also provides a refrigerator, which comprises:

the installation space is arranged between the inner container and the shell;

the compressor bin is arranged at the bottom of the box body;

a door body for opening or closing the refrigerating chamber;

a circulation gap configured as a gap at a junction of the door body and the case body when the door body closes the refrigerating chamber;

the controller is configured to:

air outside the refrigerator body enters the refrigerating chamber through the circulation gap to at least form an air flow circulation path outside the refrigerator body, the vacuum pump assembly and the refrigerator body, and the air flow outside the refrigerator body enters the refrigerating chamber to replace part of air in the refrigerating chamber; the method comprises the steps of carrying out a first treatment on the surface of the

Before the vacuum pump assembly is turned off, the first sterilization module is turned on, and the first sterilization module generates ion groups to remove bacteria introduced by the gas entering the refrigerating chamber.

Drawings

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

Fig. 1 is a schematic view of a structure of a refrigerator provided according to an exemplary embodiment;

fig. 2 is a partial structural schematic diagram in an embodiment of oxygen reduction of a refrigerator provided according to an exemplary embodiment;

fig. 3 is a schematic view showing a partial structure in still another embodiment of oxygen reduction of a refrigerator according to an exemplary embodiment;

fig. 4 is another partial structural schematic diagram in yet another embodiment of refrigerator oxygen reduction according to an exemplary embodiment;

fig. 5 is a schematic view showing a partial structure in still another embodiment of oxygen reduction of a refrigerator according to an exemplary embodiment;

Fig. 6 is an exploded view of still another implementation of oxygen reduction of a refrigerator according to an exemplary embodiment;

fig. 7 is a schematic view showing a partial structure in still another embodiment of oxygen reduction of a refrigerator according to an exemplary embodiment;

FIG. 8 is a schematic diagram of one of the connections of the vacuum pump assembly, the air conditioning membrane assembly, and the piping assembly according to an exemplary embodiment;

fig. 9 is a hardware configuration block diagram of a refrigerator according to an exemplary embodiment;

fig. 10 is a hardware configuration block diagram of a controller proposed according to an exemplary embodiment;

FIG. 11 is a control logic for refrigerator compartment oxygen reduction according to an exemplary embodiment;

FIG. 12 is control logic for switching between oxygen reduction in a refrigerator compartment and/or fresh food drawer according to an exemplary embodiment;

FIG. 13 is another control logic for oxygen reduction of a refrigerator compartment according to an exemplary embodiment;

FIG. 14 is control logic for oxygenation of a storage compartment in accordance with an exemplary embodiment;

fig. 15 is control logic for anti-condensation of a refrigerator compartment according to an exemplary embodiment;

FIG. 16 is fresh air oxygen reduction control logic for a fresh food drawer according to an exemplary embodiment;

FIG. 17 is anti-condensation control logic for a fresh food drawer according to an exemplary embodiment;

Fig. 18 is control logic for a sterilization action of a refrigerator compartment after fresh air is reduced in oxygen according to an exemplary embodiment;

FIG. 19 is control logic for the sterilization action of the fresh food drawer after the fresh air is reduced in oxygen according to an exemplary embodiment;

fig. 20 is a control logic of the first sterilization module in a fresh air oxygen reduction process of the refrigerator according to an exemplary embodiment;

fig. 21 is control logic illustrating the sterilization of an ice bin prior to fresh air de-oxygenation in accordance with an exemplary embodiment using a fresh air compartment as an illustration;

FIG. 22 is control logic illustrating sterilization of an ice bin prior to fresh air oxygen reduction in accordance with an exemplary embodiment using a fresh food drawer as an example;

FIG. 23 is control logic illustrating the deodorization of an ice bin with a refrigerator compartment according to an exemplary embodiment;

fig. 24 is a schematic structural view of a sterilization module and a smell removal module of a refrigerator according to an exemplary embodiment;

fig. 25 is an exploded view of a sterilization module and a smell removal module of a refrigerator according to an exemplary embodiment;

fig. 26 is an exploded view of a sterilization module and a smell removal module of a refrigerator according to an exemplary embodiment;

fig. 27 is an enlarged view at a in fig. 32;

fig. 28 is an enlarged view at B in fig. 26;

Fig. 29 is a schematic structural view of a photocatalyst catalytic unit according to an exemplary embodiment;

fig. 30 is an exploded view of a photocatalyst catalytic unit according to an exemplary embodiment;

fig. 31 is an exploded view of another photocatalyst catalytic unit according to an exemplary embodiment;

fig. 32 is a partial schematic view of a sterilization module according to an exemplary embodiment;

in the above figures:

a bus 81; a memory 82; a processor 83; a communication interface 84; a controller 6;

a refrigerating chamber 1; a door body 2; an image acquisition device 3; an oxygen concentration detection means 4; a regulating valve 5;

a pipeline assembly 7; a vacuum pump assembly 8; an air-conditioning membrane assembly 10; a fresh-keeping drawer 11; a case 100;

a first door closing detection assembly 91; a second door closing detection assembly 92;

a first air conditioning membrane assembly 101; a second air conditioning membrane assembly 102;

a freezing chamber 12; a compressor compartment 13; a housing 110; an inner container 120; a mounting member 71;

a first humidity detection means 14; a second humidity detection means 141;

a refrigerating fan 15; a drawer housing 112; a drawer body 111; a housing 31;

an inlet 32; an outlet 33; a built-in fan 34;

the accommodation space 35; an odor detection device 4; positive and negative ion generating means 361; a strong oxidizing ion generating unit 362;

A photocatalyst catalytic unit 363; a positive electrode 3611; a negative electrode 3612;

a substrate plate 3631; first electrode plate 3632; a second electrode plate 3633; a photocatalyst layer 3634;

a cold catalyst catalytic unit 364; tip structure 3621; and emitter electrode structures 3622.

Detailed Description

The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

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

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The application provides a refrigerator, referring to fig. 1, the refrigerator includes a box 100, the box 100 includes a top and a bottom along a length direction, a storage compartment is formed inside the box 100, and the storage compartment at least includes a refrigerating chamber 1 and a freezing chamber 12, so as to be convenient for refrigerating or freezing food materials.

In some embodiments, the storage compartments may also include a fresh food drawer 11, a temperature change compartment, etc., to meet different storage needs of the user.

Referring to fig. 1, a fresh food drawer 11 is provided in a refrigerator compartment 1. It will be appreciated that the fresh food drawer 11 may also be provided between the fresh food compartment 1 and the freezer compartment 12 to accommodate different model layout requirements.

It can be known that the vacuum pump assembly in the application can perform air suction and oxygen reduction actions on any storage compartment of the refrigerator, and only a reasonable pipeline arrangement is needed.

The refrigerator of the present application further includes a door body 2, the door body 2 including a door body inner container and a door body outer case, the door body 2 for opening and closing the storage space,

the door body 2 may be used to make the case 100 form a relatively closed space so as to facilitate the oxygen reduction work inside the case 100, and prevent the excessive inflow of air from the outside, and have poor oxygen reduction effect.

The gap at the junction of the door 2 and the cabinet 100 when the door 2 closes the refrigerating compartment 1 is defined as a first flow gap.

In some embodiments, a first through hole which can be communicated with the outside of the refrigerator 100 and the refrigerating chamber 1 may be formed in the refrigerator 100, and the first through hole may be opened or closed according to the working state, so as to facilitate the gas outside the refrigerating chamber 1 to enter the refrigerating chamber 1 during the oxygen reduction process or the working process of the vacuum pump assembly 8, and form a relatively closed space in the refrigerator during the normal storage process.

It is known that the first through hole may be provided as a circular hole or an elongated first through hole, but the ventilation area of the first through hole is not too large, otherwise it is not easy to preserve the food material of the refrigerator.

It is appreciated that in some embodiments, the first flow gap and the first through hole may be cooperatively operable.

Referring to fig. 2, the case 100 includes a liner 120 defining a storage space, and a case 110 coupled to an outer side of the liner 120 to form an external appearance of the refrigerator, an installation space is formed between the liner 120 and the case 110, and the installation space is used to form an insulation layer to insulate the storage space inside the case 100 from the outside.

A back air duct is formed between the inner container 120 and the outer case 110, and is communicated with the storage compartment inside the case 100, a refrigerating system is arranged in the back air duct, and cold air generated by the refrigerating system enters the case 100 through the back air duct to cool food materials of the case 100.

A refrigerating fan 15 is disposed in the back air duct to accelerate the flow rate of the air flow through the back air duct and the case 100, accelerate heat exchange and further promote oxygen reduction efficiency.

In the present application, a refrigeration system for supplying cool air into a storage compartment includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigerant circulates in each part of the refrigeration system to realize the refrigeration effect. The main circulation process of the refrigerant in each part is as follows: the refrigerant enters the condenser after passing through the compressor, enters the expansion valve after passing through the condenser, enters the evaporator after passing through the expansion valve, and flows back to the compressor after passing through the evaporator.

Specifically, the compressor compresses refrigerant gas at high temperature and high pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into liquid phase, and the heat is released to the surrounding environment through the condensation process, and the expansion valve expands the liquid phase refrigerant in the high temperature and high pressure state in the condenser into low pressure liquid phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a refrigerating effect by utilizing latent heat of evaporation of a refrigerant or heat exchange of a material to be cooled.

Referring to fig. 2, the cabinet 100 includes a top and a bottom disposed opposite to each other, and a compressor compartment 13 is disposed at a bottom position of the refrigerator in this application, and in this application, a vacuum pump assembly 8 is installed in the compressor compartment 13 in addition to a compressor, and the vacuum pump assembly 8 may be used to draw air from the refrigerating compartment 1 and/or the fresh food drawer 11.

A first air-conditioning membrane module 101 is installed at the top of the refrigerating chamber 1, and can be used to separate certain air, in this application, oxygen from air, by separating the gas mixture due to different permeation rates and selectivities of different polymer membranes to different kinds of gas molecules.

Through setting up first air conditioning membrane module 101 at the top of freezer 1, effectively avoid first air conditioning membrane module 101 to be sheltered from by the food material, influence the air current circulation.

In some embodiments, the first air conditioning film assembly 101 may also be disposed at a rear wall position or a side wall position of the refrigerating compartment 1, so as to facilitate the overall layout arrangement of the refrigerator.

In some embodiments, the first air conditioning film 101 assembly may be provided in plurality, and the first air conditioning film 101 assembly is provided at one or a combination of the top, rear wall and side wall of the refrigerating compartment 1. So as to accelerate the circulation flow rate of the air in the refrigerating chamber 1 and improve the oxygen reduction efficiency and the ventilation efficiency of the refrigerating chamber 1.

In some embodiments, the modified atmosphere membrane assembly is configured as a thin film made of a polyaniline conductive organic material. Such polymers can incorporate charged atoms and utilize the dopant content to alter the permeability of the film. Oxygen is faster than nitrogen when passing through such films, and thus oxygen produced by such films can be utilized.

In order to cooperate with the operation of the vacuum pump assembly 8, the refrigerator further comprises a pipe assembly 7, the pipe assembly 7 comprising a first pipe assembly 7 and a second pipe assembly 7, respectively connected to the refrigerating chamber 1 and the fresh food drawer 11.

Specifically, one end of the first pipeline assembly 7 is connected with the vacuum pump assembly 8, the other end of the first pipeline assembly 7 passes through the heat insulation layer and extends to one side of the first air conditioning membrane assembly 101 away from the refrigerating chamber 1, and the first pipeline assembly 7 is used for providing a flow pipeline of the air pumped by the vacuum pump assembly 8.

When the vacuum pump assembly 8 is operated, the air in the refrigerating chamber 1 passes through the first air conditioning membrane assembly 101 and is then pumped out to perform better oxygen reduction.

Referring to fig. 2, the pipe assembly 7 is installed in the insulation layer by the installation member 71, so that the position of the pipe assembly 7 in the insulation layer is fixed, and the situation that the insulation layer bulges or is sunken due to the fact that the foaming process of the insulation layer is affected by the arrangement of the pipe assembly 7 is avoided.

Through the arrangement, the vacuum pump assembly 8 is arranged in the compressor bin 13, the storage space of the refrigerator can be unaffected on the basis of not increasing the whole volume of the refrigerator, meanwhile, the pipeline assembly 7 is arranged in the heat preservation layer, extra space layout is not needed, and the whole planning of the refrigerator is simple and the existing functions of the refrigerator are not affected.

In some embodiments of the present application, the fresh food drawer 11 is disposed within the fresh food compartment 1, and the fresh food drawer 11 includes a drawer housing 112 disposed within the fresh food compartment 1, and a drawer body 111 that is slidable relative to an opening of the drawer housing 112. For example, a sliding rail may be provided at an inner wall of the drawer housing 112, and a sliding block moving along the sliding rail may be provided at a relative position of the drawer body 111.

In some embodiments, the side of the drawer body 111 contacting the opening of the drawer housing 112 is provided with a sealing strip, when the drawer body 111 and the drawer housing 112 are mounted, the drawer body 111 and the drawer housing 112 form a relatively closed storage space, the contact position of the drawer body 111 and the drawer housing 112 has a second flowing gap, and when the pressure difference exists between the inside and outside of the storage space formed by the fresh-keeping drawer 11, external air enters the fresh-keeping drawer 11.

In some embodiments, the opening position of the drawer housing 112 is provided with a sealing strip, when the drawer body 111 is pushed into the drawer housing 112, the drawer body 111 and the drawer housing 112 form a relatively closed storage space, a gap is formed between the drawer body 111 and the drawer housing 112 at the contact position, and when a pressure difference exists between the inside and the outside of the storage space formed by the fresh-keeping drawer 11, external air enters the fresh-keeping drawer 11.

In some embodiments, a second through hole for communicating the fresh food drawer 11 with the refrigerating chamber 1 may be formed in the drawer housing 112, and the second through hole may be opened or closed according to the working state of the fresh food drawer 11, so as to facilitate the gas outside the fresh food drawer 11 (the gas in the refrigerating chamber 1) to enter the fresh food drawer 11 during the oxygen reduction process or the working process of the vacuum pump assembly 8, and form a relatively closed space for the fresh food drawer 11 during the normal storage process of the fresh food drawer 11.

It will be appreciated that in some embodiments, the second flow gap and the second through hole may be co-operable.

In some embodiments, a third through hole for communicating the outside of the box 100 with the fresh-keeping drawer 11 may be formed in the drawer body 111, and the third through hole may be opened or closed according to the working state of the fresh-keeping drawer 11, so as to facilitate the gas outside the box 100 to enter the fresh-keeping drawer 11 during the oxygen-reducing process or the working process of the vacuum pump assembly 8, and form a relatively closed space in the fresh-keeping drawer 11 during the normal storage process of the fresh-keeping drawer 11.

It will be appreciated that in some embodiments, the second flow gap and the third through hole may be co-operable.

Similarly, in order to perform the oxygen reducing action on the fresh drawer 11, the refrigerator further includes a second air conditioning membrane assembly 102 and a second pipeline assembly 7.

Referring to fig. 6, the second air-conditioning membrane assembly 102 is disposed at the top of the fresh-keeping drawer 11, and the structural composition of the second air-conditioning membrane is identical to that of the first air-conditioning membrane assembly 101, which is not described herein.

Through setting up the second air-conditioning membrane module 102 at the top of keeping in the fresh drawer 11, effectively avoid first air-conditioning membrane module 101 to be sheltered from by the food material, influence the air current circulation.

In some embodiments, the second modified atmosphere membrane module 102 may also be disposed at the rear wall position or the side wall position of the fresh keeping drawer 11, so as to facilitate the overall layout arrangement of the refrigerator.

In some embodiments, the second air conditioning membrane assembly 102 may be provided in plurality, and the second air conditioning membrane assembly 102 is provided at one or a combination of the top, rear wall and side walls of the fresh drawer 11. So as to accelerate the circulation flow rate of the air in the fresh-keeping drawer 11 and improve the oxygen reduction efficiency and the ventilation efficiency of the fresh-keeping drawer 11.

One end of the second pipeline assembly 7 is connected with the vacuum pump assembly 8, the other end of the second pipeline assembly 7 passes through the heat insulation layer and extends to one side of the second air regulating membrane assembly 102 far away from the fresh-keeping drawer 11, and the second pipeline assembly 7 is used for providing a flow pipeline of gas pumped by the vacuum pump assembly 8.

When the vacuum pump assembly 8 is in operation, air in the fresh keeping drawer 11 passes through the second air regulating membrane assembly 102 and is then pumped out for better oxygen reduction.

Based on the above, when the fresh food drawer may be disposed between the refrigerating chamber and the freezing chamber, the oxygen reducing action for the fresh food drawer is the same as that of the refrigerating chamber; when the fresh-keeping drawer is arranged in the refrigerating chamber, air in the refrigerating chamber can be utilized to participate in air flow circulation at the moment, so that air flow inside and outside the fresh-keeping drawer is formed, and the oxygen reduction efficiency of the fresh-keeping drawer is improved.

When the fresh food drawer 11 is provided between the refrigerator compartment 1 and the freezer compartment 12, that is, when the fresh food drawer 11 is provided independently, the fresh air oxygen-reducing operation of the fresh food drawer 11 and the control logic for preventing condensation are substantially the same as those of the refrigerator compartment 1. In the present application, the technical scheme is mainly described mainly in that the fresh food drawer 11 is located in the refrigerating chamber 1.

In some embodiments, when the refrigerator performs a fresh air oxygen reduction function, the refrigeration fan of the back air duct is started to accelerate air circulation and increase the fresh air oxygen reduction module rate.

In some implementations of the present example, the first pipeline assembly 7 and the second pipeline assembly 7 are connected in a meeting manner, and a regulating valve 5 is arranged at the connection position of the first pipeline assembly 7 and the second pipeline assembly 7, and the regulating valve 5 is used for controlling the communication condition of the refrigerating chamber 1 and the vacuum pump assembly 8 and/or the fresh-keeping drawer 11 and the vacuum pump assembly 8.

In some implementations of this embodiment, the refrigerator further includes a gas collection chamber connected to the gas inlet end of the vacuum pump assembly 8 for collecting oxygen-enriched gas drawn by the vacuum pump assembly 8 from within the fresh food compartment 1 and/or the fresh food drawer 11.

In particular, in some embodiments, the gas collection chambers may be provided separately or together to facilitate collection of air from within the fresh food compartment 1 or fresh food drawer 11.

Illustratively, a gas collection chamber is provided at the top of the refrigerated compartment 1, and a modified atmosphere membrane assembly is provided on a side of the gas collection chamber adjacent to the refrigerated compartment 1 for air filtration.

In some implementations of the present example, the first air conditioning membrane assembly 101 includes a gas collection chamber disposed at the top of the refrigerator compartment 1 and an oxygen-enriched membrane disposed on a side of the gas collection chamber adjacent to the interior of the cabinet 100.

The air collecting cavity is provided with an air outlet, namely the air outlet of the whole air-conditioning membrane assembly, the air outlet is connected with the first pipeline assembly 7, the refrigerating chamber 1 is pumped under the action of the vacuum pump assembly 8, oxygen in air in the refrigerating chamber 1 can be attached to the oxygen-enriched membrane, so that the oxygen content in the air collecting cavity is finally higher than that in the air in the refrigerating chamber 1, the oxygen content in the refrigerating chamber 1 is reduced, the air flow circulation in the refrigerating chamber 1 is promoted, and the food preservation quality of the refrigerating chamber 1 is improved.

In some implementations of this embodiment, the second modified atmosphere membrane module 102 includes a gas collection chamber disposed at the top of the fresh food drawer 11 and an oxygen enriched membrane disposed on a side of the gas collection chamber adjacent to the interior of the cabinet 100.

The air collecting cavity is provided with an air outlet, the air outlet is connected with the second pipeline assembly 7, the fresh-keeping drawer 11 is pumped under the action of the vacuum pump assembly 8, oxygen in air in the fresh-keeping drawer 11 can be attached to the oxygen-enriched film, so that the oxygen content in the air collecting cavity is finally higher than that in the fresh-keeping drawer 11, the oxygen content in the fresh-keeping drawer 11 is reduced, and the food material preservation quality of the fresh-keeping drawer 11 is improved.

Referring to fig. 10, the refrigerator in the embodiment of the present application further includes a controller 6, and the controller 6 acquires various operation parameters of the refrigerator through various control programs stored in a memory, and thereby controls the operations of the various parts of the refrigerator and responds to the operations of a user. The controller 6 can realize the low oxygen requirement of the refrigerating chamber 1 and the fresh-keeping drawer 11 and the high oxygen requirement of part of the storage compartments according to the states of the control valve 5 and the vacuum pump assembly 8, so as to meet different storage requirements of users.

The controller 6 controls the overall operation of the refrigerator, for example, in response to a received oxygen lowering instruction of a corresponding compartment issued by a user, the controller 6 may perform an operation related to an object selected by the oxygen lowering instruction.

In some embodiments, the controller 6 includes at least one of a central processing unit (Central Processing Unit, CPU), a video processor, an audio processor, a graphics processor (Graphics Processing Unit, GPU), a random access Memory (Random Access Memory, RAM), a Read-Only Memory (ROM), a first interface to an nth interface for input/output, a communication Bus (Bus), and the like.

In the embodiment shown in the present application, the controller 6 refers to a device that can generate an operation control signal, instructing the refrigerator to execute a control instruction, based on the instruction operation code and the timing signal.

The embodiment of the present application further provides a schematic hardware structure of the controller 6, as shown in fig. 8, where the controller 6 includes a processor 83, and optionally, a memory 82 and a communication interface 84 connected to the processor 83. The processor 83, the memory 82 and the communication interface 84 are connected by a bus 81.

The processor 83 may be a central processor 83 (central processing unit, CPU), a general purpose processor 83 network processor 83 (network processor, NP), a digital signal processor 83 (digital signal processing, DSP), a microprocessor 83, a microcontroller 6, a programmable logic device (programmable logic device, PLD), or any combination thereof. The processor 83 may also be any other means having processing functions, such as a circuit, a device or a software module. The processor 83 may also include a plurality of CPUs, and the processor 83 may be one single-core (single-CPU) processor 83 or may be a multi-core (multi-CPU) processor 83. The processor 83 herein may refer to one or more devices, circuits, or processing cores for processing data (e.g., computer program instructions).

The memory 82 may be a read-only memory 82 (ROM) or other type of static storage device that may store static information and instructions, a random access memory 82 (random access memory, RAM) or other type of dynamic storage device that may store information and instructions, or an electrically erasable programmable read-only memory 82 (electrically erasable programmable read-only memory), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, without limitation in the embodiments of the present application. The memory 82 may be separate or integrated with the processor 83. Wherein the memory 82 may contain computer program code. The processor 83 is configured to execute computer program codes stored in the memory 82, thereby implementing the control method of the multi-split refrigerator 100 system provided in the embodiment of the present application.

The communication interface 84 may be used to communicate with other devices or communication networks (e.g., ethernet, radio access network (radio access network, RAN), wireless local area network (wireless local area networks, WLAN), etc. the communication interface 84 may be a module, circuit, transceiver, or any means capable of enabling communication.

The bus 81 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus 81 or an extended industry standard architecture (extended industry standard architecture, EISA) bus 81 or the like. The bus 81 may be divided into an address bus 81, a data bus 81, a control bus 81, and the like. For ease of illustration, only one thick line is shown in fig. 11, but not only one bus 81 or one type of bus 81.

In some implementations of the present embodiment, the controller 6 is mounted on the door 2, and of course, the controller 6 may be mounted on the case 100 for layout.

In some implementations of the present embodiment, referring to fig. 9, the refrigerator further includes a door closing detection assembly mounted on the door body 2 or the cabinet 100, the door closing detection assembly detecting a state of the door body 2 and transmitting a door opening signal or a door closing signal to the controller 6. The door closing detecting assembly is illustratively provided as a door closing detecting sensor for detecting whether the case 100 is in a closed state or not, so as to perform the oxygen reducing operation better. The door closing detecting assembly for detecting the state of the door body is defined as a first door closing detecting assembly 91.

In some implementations of the present embodiment, referring to fig. 9, the refrigerator further includes an image capturing device 3, the image capturing device 3 being disposed in the refrigerator compartment 1 and/or the fresh food drawer 11, the image capturing device 3 being configured to capture an image of the refrigerator compartment 1 and/or the fresh food drawer 11 and send the image to the controller 6.

The controller 6 stores the food material types and stores the required oxygen content range, and the controller 6 can receive the image acquired by the image acquisition device 3, perform image recognition to obtain the food material types in the current space, and acquire the corresponding required oxygen content range so as to control the operation of the vacuum pump assembly 8.

The image acquisition means 3 may, for example, be provided as a camera for acquiring images and transmitting the images to the controller 6.

In some implementations of this embodiment, referring to fig. 1, the refrigerator further includes an odor detection device 4, where the odor detection device 4 is installed in the refrigerating chamber and/or the fresh-keeping drawer, and the odor detection device 4 is used for detecting the concentration of the odor in the space where the odor detection device is located, so as to serve as a basis for starting the fresh air oxygen-reducing function.

In some embodiments, when the concentration level of the odor identified in the refrigerator compartment 1 or the fresh food drawer 11 reaches a preset threshold, the fresh air oxygen reduction function is turned on to remove the odor molecules by gas displacement.

Referring to fig. 9, the refrigerator further includes an oxygen concentration detecting device 4 provided in the refrigerating chamber 1 and/or the fresh food drawer 11 for detecting the concentration of oxygen in the refrigerating chamber 1 and/or the fresh food drawer 11 so that the auxiliary controller 6 can control the operation state of the vacuum pump assembly 8.

In some embodiments, the oxygen concentration detection device 4 may also be provided in the storage compartment in order to detect the internal oxygen concentration and avoid that the internal oxygen concentration is too high.

In some embodiments, the set number of compartments is deoxygenated by providing a set number of compartments requiring deoxygenation, the number of vacuum pump assemblies 8, and the configuration of the vacuum pump assemblies 8.

In some embodiments, the refrigerator further includes a bacteria detection device, which is disposed in the refrigerating chamber 1 or the fresh-keeping drawer 11, and is configured to detect the bacteria content in the compartment and output the bacteria content to the controller 6, so that the controller 6 controls the corresponding sterilization module to perform sterilization according to the bacteria content, and prolong the preservation time of the food materials.

The bacteria detecting means provided in the refrigerator compartment 1 is defined as a first bacteria detecting means, and the bacteria detecting means provided in the fresh food drawer 11 is defined as a second bacteria detecting means

Referring to fig. 2, a compressor compartment 13 is provided with a set of vacuum pump assemblies 8, and a pipe assembly 7 is led out from an air suction port of the vacuum pump assemblies 8, and the pipe assembly 7 is installed in a heat insulation layer (not shown in the drawing) and then connected to an air outlet of a first air conditioning membrane assembly 101 located at the top of the refrigerating compartment 1 so as to facilitate air extraction from the refrigerating compartment 1. In the illustration, a vacuum pump assembly 8 is operated for a chamber.

To improve the oxygen reduction efficiency in a single compartment, the airflow circulation in the compartment is improved. In some implementations of the present embodiment, the first air-conditioning membrane module 101 and the second air-conditioning membrane module 102 may be provided in plurality, and each of the first air-conditioning membrane module 101 and the second air-conditioning membrane module 102 may be connected to the air-extracting end of the vacuum pump module 8 through the corresponding pipeline module 7.

It will be appreciated that the same vacuum pump assembly 8 may be connected here, or that different vacuum pump assemblies 8 may be connected.

By providing a plurality of air conditioning membrane assemblies, i.e. a plurality of extraction openings, for one compartment, the oxygen reduction efficiency of the refrigerator compartment 1 and/or the fresh food drawer 11 can be effectively improved.

In order to achieve flexible deployment of the oxygen content of the compartments to which the modified atmosphere membrane modules are connected, in some implementations of the present embodiment, a plurality of vacuum pump modules 8 are provided, and a single vacuum pump module 8 may be connected to the first modified atmosphere membrane module 101 and/or the second modified atmosphere membrane module 102.

Refrigerators are typically installed for use indoors, and it is desirable to consider noise generated when the vacuum pump assembly 8 is operated, and in order to reduce noise during the oxygen reduction process, the controller 6 is configured, in some embodiments, to control a plurality of vacuum pump assemblies 8 to be operated alternately, with at most one vacuum pump assembly 8 being operated at the same time.

Referring to fig. 3 to 4, the refrigerator in the drawings includes two sets of vacuum pump assemblies 8 respectively installed at both sides of the compressor compartment 13 in the length direction, and in the example of the orientation of fig. 3, the left side of the vacuum pump assembly 8 is defined as a first vacuum pump assembly 8, and the right side of the vacuum pump assembly 8 is defined as a second vacuum pump assembly 8.

The first vacuum pump assembly 8 is connected with the first air conditioning membrane assembly 101 and is used for reducing the oxygen content in the refrigerating chamber 1; the second vacuum pump assembly 8 is connected with the second air regulating membrane assembly 102 for reducing the oxygen content in the fresh keeping drawer 11.

Of course, a set of vacuum pump assemblies 8 may be used to simultaneously perform the oxygen reduction operation for the refrigerator compartment 1 and the fresh food drawer 11. Referring to fig. 5, the refrigerator in the drawing includes a group of vacuum pump assemblies 8, and the vacuum pump assemblies 8 are respectively connected with a first air-conditioning film assembly 101 and a second air-conditioning film assembly 102 to complete the oxygen reduction action on the refrigerating chamber 1 and the fresh food drawer 11.

It can be appreciated that a valve is provided in the pipeline to regulate which compartment is being deoxygenated by the vacuum pump assembly 8 to achieve accurate deoxygenation.

In some implementations of the present embodiment, the vacuum pump assembly 8 includes a plurality of vacuum pumps that are simultaneously connected to the first line assembly 7 and/or the second line assembly 7, and the air flow through the lines is controlled by providing a plurality of valves.

The control is configured to simultaneously turn on at least two vacuum pumps to increase the air extraction rate in the refrigerating compartment 1 and to increase the oxygen reduction efficiency when a second signal is received with respect to the refrigerating compartment 1.

It should be noted that, when the controller 6 receives the second signal, the controller 6 controls the vacuum pump assembly 8 to operate to achieve a faster pumping speed, thereby achieving the requirement of strong oxygen reduction.

In some implementations of the present embodiment, the first air conditioning membrane module 101 may be connected to a plurality of vacuum pump modules 8, so that two or more vacuum pump modules 8 can operate to accelerate the oxygen descent rate in the refrigerating compartment 1.

In some implementations of the present embodiment, the controller 6 is configured to simultaneously turn on at least two vacuum pump assemblies 8 to withdraw oxygen from the refrigerator compartment 1 as soon as possible upon receipt of a strong oxygen-reducing signal regarding the refrigerator compartment 1.

In some implementations of this embodiment, the second air-conditioning membrane module 102 may be connected to a plurality of vacuum pump modules 8, so that two or more vacuum pump modules 8 may work, thereby accelerating the oxygen descent rate in the fresh-keeping drawer 11 and improving the oxygen descent efficiency.

In some implementations of the present embodiment, the controller 6 is configured to simultaneously turn on at least two vacuum pump assemblies 8 to withdraw oxygen from the fresh food drawer 11 as soon as possible, improving the oxygen reduction efficiency, when a strong oxygen reduction signal is received with respect to the fresh food drawer 11.

Referring to fig. 7-8, two sets of vacuum pump assemblies 8 are shown, one mounted on each side of the compressor housing 13 along the length, with the left side of the vacuum pump assembly 8 being defined as a first vacuum pump assembly 8 and the right side of the vacuum pump assembly 8 being defined as a second vacuum pump assembly 8, for example, in the orientation of fig. 7.

The first vacuum pump assembly 8 is connected with the first air-conditioning membrane assembly 101 and the second air-conditioning membrane assembly 102, and the second vacuum pump assembly 8 is connected with the first air-conditioning membrane assembly 101.

That is, for the refrigerator compartment 1, the oxygen reduction may be performed by the operation of the first and second vacuum pump assemblies 8 and 8, and in some embodiments, the first and second vacuum pump assemblies 8 and 8 may be controlled to operate independently or in combination according to the detected oxygen concentration within the refrigerator compartment 1.

It will be appreciated that the first vacuum pump assembly 8 and the second vacuum pump assembly 8 may be configured to operate at the same or different frequencies to achieve oxygen reduction at different rates and at different energy consumption.

For the fresh food drawer 11, oxygen reduction can be performed by the first vacuum pump assembly 8.

In some implementations of this embodiment, when the oxygen reduction action is performed on the fresh-keeping drawer 11, oxygen may be reduced in the refrigerating chamber 1 first, so that the fresh-keeping drawer 11 is located in a space with relatively low oxygen content, after the vacuum pump assembly 8 works, the air outside the refrigerating chamber 1 enters the refrigerating chamber 1, the air in the refrigerating chamber 1 is pumped away by the vacuum pump assembly 8 through the first air-conditioning membrane assembly 101, so that the oxygen content in the refrigerating chamber 1 is reduced,

Then, the fresh-keeping drawer 11 is subjected to oxygen reduction, air in the fresh-keeping drawer 11 is pumped away through the second air regulating membrane assembly 102, an air pressure difference is formed between the fresh-keeping drawer 11 and the refrigerating chamber 1, air in the refrigerating chamber 1 can enter the fresh-keeping drawer 11 through a gap between the drawer and the drawer shell 112, and original air in the fresh-keeping drawer 11 is replaced, so that the oxygen content in the fresh-keeping drawer 11 is lower.

Through the arrangement, compared with the technical scheme that the fresh-keeping drawer 11 is independently arranged in the refrigerating chamber 1 capable of performing the oxygen reduction action, the technical scheme that the fresh-keeping drawer 11 is arranged in the refrigerating chamber 1 is lower in oxygen content of the gas which can be replaced by the fresh-keeping drawer 11, and the fresh-keeping drawer 11 can be enabled to reach the set oxygen content more quickly.

In the above process, when a pressure difference occurs between the inside and the outside of the refrigerating chamber 1, air outside the refrigerating chamber 1 enters the refrigerating chamber 1 through the first flow gap or the first through hole of the refrigerating chamber 1 under the action of the pressure difference, so as to realize the replacement of air in the refrigerating chamber 1. The greater the pressure difference between the inside and outside of the refrigerating chamber 1, the faster the gas exchange rate between the inside and outside of the refrigerating chamber 1 is within a certain pressure range.

When the pressure difference occurs inside and outside the fresh-keeping drawer 11, the air outside the fresh-keeping drawer 11 or in the refrigerating chamber 1 enters the fresh-keeping drawer 11 through the second flow gap, the second through hole or the third through hole of the fresh-keeping drawer 11 under the action of the pressure difference, so that the replacement of the air in the fresh-keeping drawer 11 is realized. The larger the pressure difference between the inside and the outside of the fresh food drawer 11 is, the faster the gas exchange rate between the inside and the outside of the fresh food drawer 11 is within a certain pressure range.

In some embodiments of the present application, the oxygen reduction action of the fresh-keeping drawer 11 and the oxygen reduction action of the refrigerating chamber 1 are not related in sequence, and may be performed simultaneously, and when the oxygen reduction action is performed, the fresh-keeping drawer 11 and the refrigerating chamber 1 perform airflow, and the refrigerating chamber 1 performs airflow inside and outside, so as to accelerate the oxygen reduction efficiency of the fresh-keeping drawer 11 and the refrigerating chamber 1, and improve the gas replacement process of the fresh-keeping drawer 11 and the refrigerating chamber 1. To achieve that the oxygen content of the fresh food drawer 11 is lower than the oxygen content of the fresh food compartment 1, at least for a period of time.

In some embodiments of the present application, the operation of the fresh air oxygen reduction mode may be manually turned on or off, or may be turned on according to a set program.

The operation of the oxygen-reducing fresh air mode can be controlled by setting a preset interval time, and the operation of the oxygen-reducing fresh air mode can be controlled by detecting parameters such as the oxygen content in a space, the content of peculiar smell molecules and the like.

In some embodiments, the controller 6 is configured to operate the vacuum pump assembly 8 once every time interval, and may be set to operate once every 6 hours, for example.

In some embodiments, the boost mode may be manually turned on when more fruits and vegetables are stored in the fresh food compartment 1 or fresh food drawer 11, and the gas replacement run time and interval time are increased compared to before.

In some embodiments, the operating state of the first vacuum pump assembly 8 may be controlled based on the detected oxygen concentration of the fresh drawer 11.

And set up governing valve 5 on the pipeline that first vacuum pump assembly 8 connects, can adjust the intercommunication condition and the aperture condition of first vacuum pump assembly 8 and first air-conditioning membrane assembly 101, second air-conditioning membrane assembly 102 to in the operational capacity of vacuum pump assembly 8, the oxygen scope falls in the correspondence more fast.

It can be appreciated that although the second air-conditioning membrane module 102 is not given in the present application as an example of connecting two or more vacuum pump modules 8, the scheme is true, and the working states of the connected vacuum pump modules 8 and the corresponding regulating valves 5 can be adjusted according to the oxygen content in the fresh-keeping drawer 11, so as to reach the required oxygen content more quickly.

It should be noted that, the technical scheme of this application can be through reasonable vacuum pump assembly 8 and the quantity setting and the connection setting of air-conditioning membrane subassembly, realizes alone carrying out the oxygen reduction to cold-storage chamber 1 or fresh-keeping drawer 11 to and simultaneously carries out the oxygen reduction to cold-storage chamber 1 and fresh-keeping drawer 11. It will be appreciated that the sequence of oxygen reduction with respect to the fresh food compartment 1 and fresh food drawer 11 may be determined based on internal sensed data from both compartments or may be run according to existing programming.

In some implementations of the present embodiment, the controller 6 is configured to, after the refrigerator is powered on, receive the first signal and then turn on the vacuum pump assembly 8 or directly turn on the vacuum pump assembly 8, the vacuum pump assembly 8 pumps the refrigerating chamber 1 and discharges the pumped gas to the outside of the other compartments or the cabinet 100, so as to reduce the pressure in the refrigerating chamber 1, so that there is a pressure difference between the refrigerating chamber and the refrigerating chamber; air outside the box body 100 enters the refrigerating chamber 1 through the circulation gap to at least form an air flow circulation path outside the refrigerating chamber 1, the vacuum pump assembly 8 and the box body 100, so that partial air generated by food materials in the refrigerating chamber 1 is replaced;

wherein the oxygen content of the gas pumped by the vacuum pump assembly 8 is higher than the oxygen content of the gas in the refrigerating chamber 1 at least for a certain period of time, so that the oxygen content in the refrigerating chamber 1 is reduced, and the oxygen content in the refrigerating chamber is lower than the relative oxygen content of the gas outside the refrigerating chamber.

It is known that the oxygen content in the refrigerating compartment is reduced to 21% or less.

With the above arrangement, when the door body 2 closes the refrigerating chamber 1, the inside of the refrigerating chamber 1 is in a normal pressure closed state, and the vacuum pump assembly 8 is most effective in performing the oxygen reduction operation. Meanwhile, as the air-conditioning membrane component is arranged at the top of the refrigerating chamber 1, the air flowing out of the refrigerating chamber 1 passes through the air-conditioning membrane component, so that more oxygen enters the air collecting cavity through the air-conditioning membrane component compared with other molecules, and finally the oxygen content of the air pumped out by the vacuum pump component 8 is higher than the oxygen content of the air in the refrigerating chamber 1, the oxygen reduction action of the refrigerating chamber 1 is realized, and the food preservation quality of the refrigerating chamber 1 is improved.

Meanwhile, by utilizing the pressure difference between the inside and the outside of the refrigerating chamber, an air flow circulation path outside the refrigerating chamber 1, the vacuum pump assembly 8 and the box body 100 is formed, and when the vacuum pump assembly 8 extracts air in the refrigerating chamber 1, the formed air flow circulation is utilized to perform a fresh air function in the refrigerating chamber 1 so as to take away the air which is generated in the storage process and is unfavorable for food preservation, such as carbon dioxide, and form air replacement.

Similarly, in some embodiments, the controller 6 is further configured to, when the vacuum pump assembly 8 is operated, allow air in the fresh food drawer 11 to pass through the second air regulating membrane assembly 102 and enter the second pipeline assembly 7, wherein the oxygen content of the air pumped from the fresh food drawer 11 by the vacuum pump assembly 8 is higher than the oxygen content of the remaining air in the fresh food drawer 11 for at least a certain period of time, so that the oxygen content in the fresh food drawer 11 is reduced to meet the preservation requirement of the food in the fresh food drawer 11.

In some embodiments, the operation of the vacuum pump assembly is also associated with the state of the refrigerated compartment.

Referring to fig. 11, the control logic for performing oxygen reduction in the embodiment of the present application will be described with reference to the refrigerating compartment 1.

Judging whether the refrigerating chamber 1 is in a closed state (step S1101);

in step S1101, if the refrigerating compartment 1 is in the closed state, step S1102 is performed to turn on the vacuum pump assembly 8;

In step S1101, if the refrigerator compartment 1 is not in the closed state, step S1103 is executed to give an alarm to remind the user to close the door.

In some implementations of the present embodiment, the controller 6 is configured to, after the refrigerator is powered on, receive a third signal to turn on the vacuum pump assembly 8 or directly turn on the vacuum pump assembly 8, the vacuum pump assembly 8 pumps the fresh food drawer 11 and discharges the pumped gas to the outside of the other compartments or the cabinet 100 to reduce the pressure in the fresh food drawer 11, such that a pressure difference exists between the fresh food drawer 11 and the refrigeration compartment 1; air in the refrigerating chamber 1 enters the fresh food drawer 11 through the second flowing gap to form at least an air flow circulation path of the fresh food drawer 11, the vacuum pump assembly 8, the outside of the case 100 and the refrigerating chamber 1, thereby replacing part of air in the fresh food drawer 11.

Wherein the oxygen content of the gas pumped out by the vacuum pump assembly 8 is higher than the oxygen content of the gas in the fresh-keeping drawer 11 at least for a certain period of time, so that the oxygen content in the fresh-keeping drawer 11 is reduced, and the relative oxygen content in the fresh-keeping drawer 11 is lower than the relative oxygen content of the gas in the refrigerating chamber 1.

With the above arrangement, when the drawer body 111 is placed inside the drawer housing 112, the drawer body 111 and the drawer housing 112 are brought into a normal pressure closed state, and the oxygen reduction operation is most effective at this time. Meanwhile, a second air-conditioning membrane assembly 102 is arranged at the top of the fresh-keeping drawer 11, and the air flowing out of the fresh-keeping drawer 11 passes through the second air-conditioning membrane assembly 102, so that more oxygen passes through the air-conditioning membrane assembly and enters the air collecting cavity compared with other molecules, and finally the oxygen content of the air pumped by the vacuum pump is higher than the oxygen content of the air in the fresh-keeping drawer 11, thereby realizing the oxygen reduction action of the fresh-keeping drawer 11 and improving the preservation quality of food materials of the fresh-keeping drawer 11.

Meanwhile, the fresh-keeping drawer 11 is utilized to form a gas circulation path outside the refrigerating chamber 1, the fresh-keeping drawer 11, the vacuum pump assembly 8 and the box body 100 by utilizing the pressure difference between the indoor and the outdoor of the fresh-keeping drawer 11 and the pressure difference between the indoor and the outdoor of the refrigerating chamber 1, and when the vacuum pump assembly 8 extracts air in the fresh-keeping drawer 11, the fresh air ventilation function of the fresh-keeping drawer 11 is realized by utilizing the formed air circulation, so that the gas which is harmful to the preservation of food such as carbon dioxide and the like generated in the storage process is taken away, and gas replacement is formed.

In some implementations of the present embodiment, a second door closing detecting assembly 92 is provided at the opening side of the drawer housing 112 for detecting whether the drawer housing 112 and the drawer body 111 form an atmospheric pressure closed space.

When the drawer body 111 moves to the bottom toward the inside of the drawer housing 112, it is determined that the fresh-keeping drawer 11 is in a closed state at this time, and the drawer body 111 and the drawer housing 112 form a normal-pressure relatively closed space.

It can be known that when the drawer shell 112 and the drawer body 111 form a normal pressure closed space, the opening and closing of the door body can be judged to perform the fresh air oxygen reduction function of the fresh-keeping drawer 11, and the fresh air oxygen reduction function of the fresh-keeping drawer 11 can also be directly performed.

In some embodiments, before the fresh air oxygen reduction function of the fresh-keeping drawer 11 is performed, whether the fresh-keeping drawer 11 is in a closed state is first determined, and when the fresh-keeping drawer 11 is in the closed state, the fresh air oxygen reduction function is normally performed; when the fresh-keeping drawer 11 is not in a closed state, an alarm or an alarm can be given and a fresh air oxygen reduction function can be started.

In some implementations of the present example, the oxygen reduction operation may be performed on the refrigerator compartment 1 and the fresh food drawer 11 simultaneously or back and forth.

The controller 6 is configured such that, after the refrigerator is powered on, the vacuum pump assembly 8 pumps air out of the refrigerating chamber 1 and the fresh food drawer 11, and discharges the pumped air out of the other compartments or the box 100, so as to form a pressure difference between the inside and outside of the refrigerating chamber 1 and the inside and outside of the fresh food drawer 11;

air outside the refrigerator body 100 enters the refrigerating chamber 1 through the first flowing gap to form an air flow circulation path outside the refrigerating chamber 1, the vacuum pump assembly 8 and the refrigerator body 100, so that part of air in the refrigerating chamber 1 is replaced;

part of the air in the refrigerating chamber 1 is pumped out by the vacuum pump assembly 8 through the first air conditioning membrane assembly 101, and the other part of the air enters the fresh food drawer 11 through the second flow gap to form an air flow circulation path outside the refrigerating chamber 1, the fresh food drawer 11, the vacuum pump assembly 8 and the box body 100, so that part of the air in the fresh food drawer 11 is replaced;

wherein the oxygen content of the gas pumped out by the vacuum pump assembly 8 is higher than the oxygen content of the gas in the fresh food drawer 11 at least for a certain period of time, and the oxygen content of the gas pumped out by the vacuum pump assembly 8 is higher than the oxygen content of the gas in the refrigerating chamber 1 at least for a certain period of time. So that the relative oxygen content of the gas inside the refrigerating compartment 1 is lower than the relative oxygen content of the gas outside the cabinet 100, at least for a period of time; the relative oxygen content of the air in the fresh food drawer 11 is lower than the relative oxygen content of the air in the fresh food compartment 1, at least for a period of time.

Through the arrangement, a first air flow circulation path outside the refrigerating chamber 1, the vacuum pump assembly 8 and the box body 100 and a second air flow circulation path outside the refrigerating chamber 1, the fresh-keeping drawer 11, the vacuum pump assembly 8 and the box body 100 are formed, so that fresh air oxygen reduction functions of the refrigerating chamber 1 and the fresh-keeping drawer 11 can be realized.

Meanwhile, the fresh air oxygen reduction of the fresh-keeping drawer 11 works under the action of the fresh air oxygen reduction of the refrigerating chamber 1, and the fresh air oxygen reduction process of the fresh-keeping drawer 11 is accelerated. The air in the refrigerating chamber 1 enters the fresh food drawer 11 to promote the air change of the fresh food drawer 11 and accelerate the air flow circulation of the refrigerating chamber 1.

Referring to fig. 16, fresh air oxygen reduction control logic of fresh food drawer 11 is illustrated.

Powering on the refrigerator (step S1601);

whether the fresh drawer 11 is in a closed state (step S1602);

in step S1602, if the fresh food drawer 11 is in a closed state, step S1603 is executed, and the vacuum pump assembly 8 pumps air out of the fresh food drawer 11;

in step S1602, if the fresh drawer 11 is not in the closed state, step S1604 is performed, and the refrigerator alarms or the vacuum pump assembly 8 pumps air in a preset working state.

In the above steps, when the fresh-keeping drawer 11 is not in the closed state, the vacuum pump assembly 8 may perform air extraction according to the preset working state, so as to perform the preparation action of the fresh-keeping drawer 11, and perform the normal air extraction state after detecting that the fresh-keeping drawer 11 is closed.

The operating frequency of the vacuum pump assembly 8 in the preset operating state is greater than the operating frequency of the vacuum pump assembly 8 in the normal pumping state, so that the air flow in the small area formed in the fresh keeping drawer 11 is replaced rapidly.

In some implementations of the present example, to better regulate the oxygen content of each compartment of the refrigerator, the refrigerator is further provided with a regulating valve 5, the regulating valve 5 being used to control whether the first air regulating membrane assembly 101 and the vacuum pump assembly 8 and the second air regulating membrane assembly 102 and the vacuum pump assembly 8 are in communication.

Illustratively, the regulating valve 5 may be configured as a three-way valve, and selectively reduces oxygen in the refrigerating chamber 1 and/or the fresh food drawer 11 by adjusting the on/off state of the regulating valve 5.

Based on the above, the controller 6 is configured to receive the oxygen reduction instruction of the corresponding chamber, control the state of the regulator valve 5, and realize the oxygen reduction operation of the corresponding chamber.

It can be known that the refrigerator 1 and the fresh food drawer 11 can be simultaneously subjected to oxygen reduction, so that the size of the low-oxygen space is enlarged to meet the low-oxygen storage requirement of a user on food materials.

Referring to fig. 12, control logic for switching the oxygen reduction of the refrigerator compartment 1 and/or the fresh food drawer 11 in the embodiment of the present application is described.

Judging whether an oxygen-reducing instruction of the refrigerating chamber 1 is received (step S1201);

In step S1201, if the oxygen reduction instruction of the refrigerator compartment 1 is received, step S1202 is executed to determine whether the oxygen reduction instruction of the fresh food drawer 11 is received;

in step S1202, if an oxygen reduction instruction of the fresh-keeping drawer 11 is received, step S1203 is executed to adjust the regulating valve 5, and the vacuum pump assembly 8 is communicated with the first air-conditioning membrane assembly 101 and the second air-conditioning membrane assembly 102;

in step S1202, if the oxygen reduction instruction of the fresh-keeping drawer 11 is not received, step S1204 is executed to adjust the regulating valve 5, and the vacuum pump assembly 8 is communicated with the first air regulating membrane assembly 101;

in step S1201, if the oxygen reduction instruction of the refrigerator compartment 1 is not received, step S1205 is executed to determine whether the oxygen reduction instruction of the fresh food drawer 11 is received;

in step S1205, if the oxygen reduction instruction of the fresh-keeping drawer 11 is received, step S1206 is executed to adjust the regulating valve 5, and the vacuum pump assembly 8 is communicated with the second air-conditioning membrane assembly 102;

in step S1205, if the oxygen reduction instruction of the fresh drawer 11 is not received, step S1207 is executed to adjust the regulating valve 5, and the vacuum pump assembly 8 is not in communication with the first air regulating membrane assembly 101 and the second air regulating membrane assembly 102.

In step S1203, if the vacuum pump assembly 11 is in communication with the first air conditioning membrane assembly 101 and the second air conditioning membrane assembly 102, the vacuum pump assembly 11 performs fresh air oxygen reduction operation on the refrigerator compartment 1 and the fresh food drawer 11.

In this process, air outside the cabinet 100 enters the refrigerating chamber 1 through the first flow gap to form an air flow circulation path outside the refrigerating chamber 1, the vacuum pump assembly 11, and the cabinet 100, thereby replacing a part of air inside the refrigerating chamber 1; part of the air in the refrigerating chamber 1 is pumped out by the vacuum pump assembly 11 through the first air conditioning membrane assembly 101, and the other part of the air enters the fresh food drawer 11 through the second flow gap to form an air flow circulation path outside the refrigerating chamber 1, the fresh food drawer 11, the vacuum pump assembly 11 and the box body 100, so that part of the air in the fresh food drawer 11 is replaced; thereby realizing the purposes of fresh air ventilation and oxygen reduction of the two chambers of the refrigerating chamber 1 and the fresh-keeping drawer 11.

In some implementations of the present example, an odor detection device is disposed within the refrigerated compartment 1 for detecting an odor concentration within the refrigerated compartment 1. The smell detection device provided in the refrigerating compartment 1 is defined as a first smell detection device. The odor detection device can at least identify volatile amine substances and volatile nitrogen substances.

The controller 6 is configured to start the vacuum pump assembly 11 when the odor concentration in the refrigerating chamber 1 detected by the odor detection device reaches a first preset odor concentration threshold value, and to pump the refrigerating chamber 1 by using the vacuum pump assembly 11, so as to promote the circulation of air flow inside and outside the refrigerating chamber 1.

In some implementations of the present embodiment, odor detection means are provided within the fresh drawer 11 for detecting the concentration of odor within the fresh drawer 11. The odor detecting means provided in the fresh food drawer 11 is defined as second odor detecting means.

The controller 6 is configured to start the vacuum pump assembly 11 when the odor concentration in the fresh-keeping drawer 11 detected by the second odor detecting device reaches a second preset odor concentration threshold value, and to pump the fresh-keeping drawer 11 by using the vacuum pump assembly 11, so as to promote the circulation of air flow inside and outside the fresh-keeping drawer 11.

To further increase the efficiency of the oxygen reduction, the controller 6 is further configured to turn on the refrigeration fan 15 to accelerate the airflow within the refrigeration compartment 1 during operation of the vacuum pump.

During the operation of the vacuum pump, there are two states of the refrigerator for cooling or not, when the refrigerator is in a cooling state, the refrigerating fan 15 is considered to be in an on state at this time, and the refrigerator is not required to be turned on again.

When the refrigerator does not perform refrigeration, the refrigerating fan 15 is turned on, and the refrigeration operation of the refrigeration system is not in the scope of improvement of the present application, and will not be described herein.

In some implementations of the present embodiment, the controller 6 is configured to, after the refrigerator compartment 1 is filled with food material, receive an image acquired by the image acquisition device 3 within the refrigerator compartment 1, acquire a type of food material and obtain therefrom a first required oxygen content range for the food material, open the vacuum pump assembly 8, and adjust the regulator valve 5 to place the refrigerator compartment 1 in communication with the vacuum pump assembly 8; when the oxygen concentration detected by the oxygen concentration detection means 4 reaches the upper limit value of the first required oxygen content range, the vacuum pump assembly 8 is turned off.

In some implementations of the present embodiment, the controller 6 is further configured to, after the food material is placed in the fresh-keeping drawer 11, receive the collected image of the image collecting device 3 in the fresh-keeping drawer 11, obtain the type of the food material and obtain the second required oxygen content range of the food material accordingly, open the vacuum pump assembly 8, and adjust the regulating valve 5 to communicate the fresh-keeping drawer 11 with the vacuum pump assembly 8;

when the oxygen concentration in the fresh drawer 11 reaches the upper limit of the second desired oxygen content range, the vacuum pump assembly 8 is turned off.

Referring to fig. 13, another control logic of the oxygen reduction of the refrigerating compartment 1 in the embodiment of the present application is explained.

The image pickup device 3 picks up an image in the refrigerating compartment 1 and sends it to the controller 6 (step S1301);

acquiring a corresponding first required oxygen content range (step S1302);

controlling the vacuum pump assembly 8 to be turned on (step S1303);

judging whether or not the oxygen concentration in the refrigerating chamber 1 reaches the upper limit value of the first required oxygen content range (step S1304);

in step S1304, if the oxygen concentration reaches the upper limit value of the first required oxygen content range, step S1305 is executed to turn off the vacuum pump assembly 8;

in step S1304, if the oxygen concentration does not reach the upper limit value of the first required oxygen content range, step 1304 is performed.

In the above steps, the oxygen content range to be reached is judged according to the food material types obtained by image recognition, and the oxygen reduction action is performed on different food material types, so that the accurate oxygen reduction is realized, and the refined storage requirement of a user can be met.

In some implementations of this embodiment, the refrigerator further includes an additional storage compartment (not shown) that may be disposed inside the cabinet 100 or external to the cabinet 100, the storage compartment including an oxygen inlet in communication with the outlet end of the vacuum pump assembly 8 to receive gas from the gas collection chamber.

The vacuum pump assembly 8 is configured to draw the gas in the refrigerator compartment 1 and/or the fresh food drawer 11 into the gas collection chamber through the pipeline assembly 7 so that oxygen in the air around the air conditioning membrane assembly penetrates the air conditioning membrane assembly into the gas collection chamber more than nitrogen in the air around the air conditioning membrane assembly to reduce the oxygen concentration in the refrigerator compartment 1 and/or the fresh food drawer 11;

the gas in the gas collection chamber enters the storage chamber through the vacuum pump assembly 8 so that a high oxygen concentration space is formed in the storage chamber.

The fresh-keeping gas atmosphere of fruits and vegetables is formed in the refrigerating chamber 1 or the fresh-keeping drawer 11, and the high oxygen gas atmosphere with the oxygen reaching 22-28% is formed in the high oxygen concentration space, so that the fresh-keeping storage of meat is utilized.

Of course, a gas collection chamber may be provided at the exhaust of the vacuum pump assembly 8, and then a storage compartment in which high oxygen conditions are required may be selectively communicated with the gas collection chamber.

In some implementations of this embodiment, the air outlet end of the vacuum pump assembly 8 may also be in communication with the outside of the enclosure 100, and the controller 6 is configured to exhaust the pumped air from the enclosure 100 when the oxygen content in the storage compartment reaches the lower limit of the predetermined oxygen concentration range, but the pumping operation of the vacuum pump assembly 8 is not stopped.

Referring to fig. 14, control logic for oxygenation of a storage compartment in an embodiment of the present application is described.

Receiving an oxygenation instruction of the storage compartment (step S1401);

turning on the vacuum pump assembly 8 (step S1402);

judging whether the oxygen content in the storage compartment reaches a lower limit value of a preset oxygen concentration range (S1403);

in step S1403, if the oxygen content reaches the lower limit value of the preset oxygen concentration range, step S1404 is executed to determine whether the oxygen concentration of the chamber corresponding to the air extraction reaches the required oxygen concentration range;

in step S1404, if the oxygen concentration reaches the required oxygen content range, step S1405 is performed, and the vacuum pump assembly 8 is turned off;

in step S1404, if the oxygen concentration does not reach the required oxygen content range, step S1406 is performed to open the air outlet of the vacuum pump assembly 8 to the outside of the tank 100;

In step S1403, if the oxygen content does not reach the lower limit value of the preset oxygen concentration range, step S1403 is performed.

In the above embodiment, the refrigerator includes the case 100 having the top and bottom disposed along the length direction, the case 100 includes the housing 110 and the liner 120, the liner 120 is disposed inside the housing 110, the mounting space is formed between the liner 120 and the housing 110, the mounting space is used to form the insulation layer, the inside of the liner 120 forms the refrigerating chamber 1, the freezing chamber 12 and the fresh-keeping drawer 11, the refrigerator further includes the door 2 for opening and closing the refrigerating chamber 1, the air conditioning film assembly disposed at the top of the refrigerating chamber 1, the vacuum pump assembly 8 disposed at the compressor compartment 13, and the pipe assembly 7 for connecting the vacuum pump assembly 8 and the air conditioning film assembly, one end of the pipe assembly 7 is connected with the vacuum pump assembly 8, the other end of the pipe assembly 7 is connected with the air conditioning film assembly through the insulation layer, the pipe assembly 7 is used to provide a flow pipe of the air pumped by the vacuum pump assembly 8, and the controller 6 is configured to open the vacuum pump assembly 8 when the door 2 closes the refrigerating chamber 1, the oxygen content of the air pumped by the vacuum pump assembly 8 is at least higher than that in the refrigerating chamber 1 for a period of time, so that the oxygen content of the air pumped by the vacuum pump assembly 8 is reduced. The preservation of the refrigerator 1 for perishable food materials such as meat, seafood and the like is facilitated, and the fresh-keeping capability of the food materials of the refrigerator is improved.

Meanwhile, through the arrangement of the pipeline, the air with the extracted oxygen content higher than that in the air is guided into the room needing oxygen enrichment, so that the utilization in the air is effectively realized, and the work of a device for generating oxygen is not needed or reduced.

In some implementations of this embodiment, a dehumidifying device is installed at the air inlet of the storage compartment with oxygen enrichment requirements to prevent moisture in other compartments from entering the compartment and affecting storage. For example, the dehumidifying device may be provided as a desiccant.

In some implementations of this embodiment, a sterilization device is installed at the air inlet of the storage compartment with the oxygen-enriched requirement to avoid bacteria from entering other compartments and contaminating the oxygen-enriched storage compartment. Illustratively, the sterilizing device may be configured as an ion generating device, an ozone generating device.

In some embodiments of the present application, the refrigerator further includes a first humidity detecting device 14 disposed in the refrigerating chamber 1 for detecting the humidity in the refrigerating chamber 1, and the humidity detecting device in the refrigerating chamber is defined as the first humidity detecting device 14. The first humidity detection means 14 are, for example, provided as humidity sensors.

In some embodiments of the present application, the embodiment includes the hardware structure of the foregoing embodiment, where the controller 6 is configured to receive the humidity value detected by the first humidity detecting device 14, and when the humidity value reaches the preset humidity value, turn on the vacuum pump assembly 8, and the vacuum pump assembly 8 pumps the refrigerating chamber 1 and discharges the pumped air to the outside of the other compartments or boxes 100, so as to reduce the pressure in the refrigerating chamber 1; air outside the cabinet 100 enters the refrigerating chamber 1 through the circulation gap to form at least an air flow circulation path outside the refrigerating chamber 1, the vacuum pump assembly 8, and the cabinet 100, so that moisture in the refrigerating chamber 1 is circulated out of the refrigerating chamber 1 through the air flow.

Through the arrangement, the vacuum pump assembly 8 is utilized to pump out the air in the refrigerating chamber 1, because the first air conditioning membrane assembly is arranged at the air outlet position of the refrigerating chamber 1, the air is sucked out through the first air conditioning membrane assembly, so that more oxygen in the air in the refrigerating chamber 1 is sucked out than other gases, the air outside the box body 100 enters the refrigerating chamber 1 through the first flowing clearance, and the moisture in the air in the refrigerating chamber 1 is taken away through the air circulation, so that the humidity in the refrigerating chamber 1 is effectively reduced.

In some implementations of the present embodiment, the controller 6 is configured to reduce the operating frequency of the vacuum pump assembly 8 or to shut down the vacuum pump assembly 8 when the humidity value decreases to a second preset humidity value, slowing or stopping the circulation of the air flow within the refrigerated compartment 1.

Referring to fig. 15, the control logic of the condensation prevention of the refrigerating compartment 1 in the present application is described.

Receiving the humidity value of the refrigerating compartment 1 at the time of detection by the first humidity detection means 14 (step S1501);

judging whether the humidity value reaches a first preset humidity value (step 1502);

in step S1502, when the humidity value reaches a first preset humidity value, step S1503 is executed to turn on the vacuum pump assembly 8;

judging whether the humidity value is reduced to a second preset humidity value (step S1505);

In step S1505, if the humidity value is reduced to the second preset humidity value, step 1506 is executed to turn off the vacuum pump assembly 8 or reduce the operating frequency of the vacuum pump assembly 8;

in step S1505, if the humidity value is not reduced to the second preset humidity value, step S1507 is executed to maintain the working state of the vacuum pump assembly 8;

in step S1502, when the humidity value does not reach the first preset humidity value, step S1504 is executed to maintain the operation state of the vacuum pump assembly 8.

The working state of the vacuum pump assembly 8 is controlled, and the humidity value in the refrigerating chamber 1 is controlled, so that the condensation condition in the refrigerating chamber 1 is controlled, the condensation in the refrigerating chamber 1 is avoided, and the refrigerating effect is improved.

It can be known that the above technical solution is also applied to the fresh-keeping drawer 11, and the humidity value of the air in the fresh-keeping drawer 11 is controlled by controlling the working state of the vacuum pump assembly 8 related to the fresh-keeping drawer 11, so as to control the condensation condition in the fresh-keeping drawer 11.

In the above embodiment, the refrigerator includes the refrigerator body 100 having the top and bottom provided in the longitudinal direction, the refrigerator body 100 includes the outer case 110 and the inner case 120, the inner case 120 is provided inside the outer case 110, the inner case 120 and the outer case 110 form an installation space therebetween for forming an insulation layer, the inside of the inner case 120 forms the refrigerating chamber 1, the freezing chamber 12 and the fresh-keeping drawer 11, the refrigerator further includes the door body 2 for opening and closing the refrigerating chamber 1, the air conditioning film assembly provided at the top of the refrigerating chamber 1, the vacuum pump assembly 8 provided at the compressor compartment 13, and the pipe assembly 7 for connecting the vacuum pump assembly 8 and the air conditioning film assembly, one end of the pipe assembly 7 is connected with the vacuum pump assembly 8, the other end of the pipe assembly 7 is connected with the air conditioning film assembly through the insulation layer, the pipe assembly 7 is used for providing a flow pipe of the air pumped out by the vacuum pump assembly 8, the controller 6 is configured to receive the humidity value detected by the first humidity detection device 14, and when the humidity value reaches a preset humidity value, the vacuum pump assembly 8 is opened, the vacuum pump assembly 8 is pumped out of the refrigerating chamber 1 and the air is pumped out of the refrigerating chamber 1 or the refrigerating chamber 100, and the other air is pumped out of the refrigerating chamber 1 by the air chamber 100; air outside the cabinet 100 enters the refrigerating chamber 1 through the circulation gap to form at least an air flow circulation path outside the refrigerating chamber 1, the vacuum pump assembly 8, and the cabinet 100, so that moisture in the refrigerating chamber 1 is circulated out of the refrigerating chamber 1 through the air flow. The air flow circulates to take away the water vapor in the air in the refrigerating chamber 1, so that the humidity in the refrigerating chamber 1 is effectively reduced. The preservation of the refrigerator 1 for perishable food materials such as meat, seafood and the like is facilitated, and the fresh-keeping capability of the food materials of the refrigerator is improved.

In some implementations of the present embodiment, the refrigerator further includes a second humidity detecting device 141, and the second humidity detecting device 141 is disposed in the fresh food drawer 11, and is configured to detect a humidity value in the fresh food drawer 11 and send the detected humidity value to the controller 6. The second humidity detection means 141 is exemplarily provided as a humidity sensor.

In some embodiments of the present application, the embodiment includes the hardware structure of the foregoing embodiment, where the controller 6 is configured to receive the humidity value of the second humidity detecting device 141, and when the humidity value reaches the third preset humidity value, turn on the vacuum pump assembly 8, the vacuum pump assembly 8 pumps the fresh-keeping drawer 11, and exhaust the pumped gas to the outside of the other compartments or boxes 100, so as to reduce the pressure in the fresh-keeping drawer 11; air in the refrigerating chamber 1 enters the fresh food drawer 11 through the second flow gap to at least form an air flow circulation path outside the refrigerating chamber 1, the fresh food drawer 11, the vacuum pump assembly 8 and the box body 100, so that water vapor in the fresh food drawer 11 is circularly discharged out of the fresh food drawer 11 through the air flow.

Through the arrangement, the air in the fresh-keeping drawer 11 is pumped out by the vacuum pump assembly 8, and because the second air-conditioning film assembly 102 is arranged at the air outlet position of the fresh-keeping drawer 11, the air is sucked out through the second air-conditioning film assembly 102, so that oxygen in the air in the fresh-keeping drawer 11 is sucked out more than other gases, the air in the refrigerating chamber 1 enters the refrigerating chamber 1 through the second flowing clearance, redundant water vapor in the air in the fresh-keeping drawer 11 is taken away through air circulation, and the humidity of the fresh-keeping drawer 11 is effectively reduced.

In some embodiments, the humidity detection value of the first humidity detection device 14 in the refrigerating chamber 1 is also considered, so as to avoid that moisture of the air in the refrigerating chamber 1 enters the fresh food drawer 11 through circulation of air flow.

In some implementations of the present embodiment, the controller 6 is configured to reduce the operating frequency of the vacuum pump assembly 8 or to shut down the vacuum pump assembly 8 when the humidity level of the fresh food drawer 11 is reduced to a fourth preset humidity level, slowing or stopping the circulation of air flow inside and outside the fresh food drawer 11.

Referring to fig. 17, the control logic for preventing condensation of the fresh food drawer 11 in the present application is described.

Receiving the humidity value of the fresh-keeping drawer 11 detected by the second humidity detecting means 141 (step S1701);

judging whether the humidity value reaches a third preset humidity value (step S1702);

in step S1702, when the humidity value reaches a third preset humidity value, step S1703 is executed to turn on the vacuum pump assembly 8;

judging whether the humidity value is reduced to a fourth preset humidity value (step S1705);

in step S1705, if the humidity value is reduced to the fourth preset humidity value, step S1706 is executed to turn off the vacuum pump assembly 8 or reduce the operating frequency of the vacuum pump assembly 8;

in step S1705, if the humidity value is not reduced to the fourth preset humidity value, step S1707 is executed to maintain the working state of the vacuum pump assembly 8;

In step S1702, when the humidity value does not reach the third preset humidity value, step S1704 is performed to maintain the operation state of the vacuum pump assembly 8.

The working state of the vacuum pump assembly 8 is controlled, and the humidity value in the fresh-keeping drawer 11 is controlled, so that the condensation condition in the fresh-keeping drawer 11 is controlled, the condensation in the fresh-keeping drawer 11 is avoided, and the refrigerating effect is improved.

In the above embodiment, the refrigerator includes the case 100 having the top and bottom disposed along the length direction, the case 100 includes the outer case 110 and the inner case 120, the inner case 120 is disposed inside the outer case 110, the inner case 120 and the outer case 110 form an installation space therebetween for forming an insulation layer, the inside of the inner case 120 forms the refrigerating chamber 11, the freezing chamber 12 and the fresh-keeping drawer 11, the refrigerator further includes the door body 2 for opening and closing the refrigerating chamber 11, the air conditioning film assembly disposed at the top of the refrigerating chamber 11, the vacuum pump assembly 8 disposed at the compressor compartment 13, and the pipe assembly 7 for connecting the vacuum pump assembly 8 and the air conditioning film assembly, one end of the pipe assembly 7 is connected with the vacuum pump assembly 8, the other end of the pipe assembly 7 is connected with the air conditioning film assembly through the insulation layer, the pipe assembly 7 is used for providing a flow pipe of the air pumped by the vacuum pump assembly 8, the controller 6 is configured to receive the humidity value detected by the second humidity detection device 14114, and when the humidity value reaches the preset humidity value, the vacuum pump assembly 8 is opened, the drawer 11 is pumped by the vacuum pump assembly 8 and the air conditioning drawer 11 is pumped out from the refrigerating chamber 11 or the fresh-keeping chamber 100, and the other air is pumped out from the fresh-keeping chamber 11 by the vacuum pump assembly is reduced; air in the refrigerating chamber 11 enters the fresh food drawer 11 through the circulation gap to form at least an air flow circulation path outside the refrigerating chamber 11, the fresh food drawer 11, the vacuum pump assembly 8 and the box body 100, so that water vapor in the fresh food drawer 11 is circularly discharged out of the fresh food drawer 11 through the air flow. The air flow is used for circularly taking away the water vapor in the air in the fresh-keeping drawer 11, so that the humidity in the fresh-keeping drawer 11 is effectively reduced. The preservation drawer 11 is beneficial to preserving perishable food materials such as meat, seafood and the like, and improves the preservation capability of the food materials of the refrigerator.

In the fresh air oxygen reduction process of the refrigerator, outdoor bacteria can be led, meanwhile, partial bacteria and peculiar smell can be generated in food material storage, and the storage effect of the refrigerating chamber 1 or the fresh-keeping drawer 11 can be affected. The introduced bacteria may include bacteria contained in air such as plankton, alcaligenes mucilaginosus, alcaligenes-like bacteria, achromobacter, aerobacter, lactobacillus, leuconostoc, etc. suspended in air.

Meanwhile, in the fresh air oxygen reduction process, cross contamination among compartments can be caused.

To solve the above-described problems, in some embodiments of the present application, the refrigerator is further provided with a sterilization module, which may be provided in the refrigerating compartment 1, and the sterilization module provided in the refrigerating compartment 1 is defined as a first sterilization module.

The first sterilization module may be provided, for example, as an ion generating means for generating ion groups and/or ozone for removing bacteria in the cabinet 100, and in general, ion types in the ion groups may include strong oxidizing ions including hydroxyl radicals (OH), ozone (O), positive ions, negative ions, and the like, for example ₃ ) The types of bacteria in the case 100 include plankton in the air in the refrigerating chamber 1, adhesion bacteria adhering to the inner wall of the refrigerating chamber 1, food materials, and the like.

In the process of contacting air with the ion group, ions can adsorb and decompose odor molecules and planktonic bacteria in the air, and meanwhile, the ions can flow into the refrigerating chamber 1 along with the air flow to remove attached bacteria on the inner wall of the refrigerating chamber 1 or the surface of food.

It is known that during the air extraction process of the vacuum pump assembly 8, air in the refrigerating chamber 1 is extracted, and ion groups in the air enter the first pipeline assembly along with air flow, so as to remove attachment bacteria and planktonic bacteria in the first pipeline assembly.

In some implementations of the present embodiment, the refrigerator further includes a high voltage power supply for supplying a high voltage to the ion generating device to discharge it to form ion groups for sterilization of the interior of the refrigerator, and in this implementation, the generation of ion concentration may be controlled by controlling a discharge rule of the high voltage power supply.

In some implementations of the present example, referring to fig. 23-32, an ion generating device includes a housing 31, a receiving space 35 and an inlet 32 and an outlet 33 communicating with the receiving space 35 are provided within the housing 31.

The ion group generating device is installed in the accommodating space 35, and after the ion group is generated, the air flow in the refrigerating chamber 1 or the fresh food drawer 11 enters the accommodating space 35 from the inlet 32, and after the ion group reacts with the air flow, the air flow flows back to the refrigerating chamber 1 or the fresh food drawer 11 through the outlet 33. The ion packets generated at the same time are diffused into the refrigerating compartment 1 or the fresh food drawer 11 through the inlet 32 and the outlet 33.

In some implementations of the present example, referring to FIGS. 25-26, the ion generating device includes a strong oxidizing ion generating unit 362, the strong oxidizing ion generating unit 362 generates a large amount of strong oxidizing active species including hydroxyl radicals (OH), ozone (O) using tip corona discharge and ions ₃ ) Atomic oxygen (O), ground oxygen (O), nitrogen oxides (NOx) and the like are diffused into the refrigerating chamber 1 of the refrigerator, and the inner wall of the fresh-keeping drawer 11 and the surface of food are effectively killed and removed. Meanwhile, the concentration of ozone (O.) can be controlled by applying a discharge control rule, and the concentration of ozone is controlled below a user perception threshold. Illustratively, the discharge control rule is a relationship between the applied voltage and the ozone concentration.

In some embodiments, the controller 6 controls the concentration of the generated strong oxidizing ions using a discharge control rule so that the concentration of the strong oxidizing ions is below a set threshold value, which is set according to the degree of perception of the user. The sterilization is performed under the condition that the user does not feel, so that the user experience can be effectively improved, and meanwhile, the situation that the preservation condition of food materials in the box body 100 is influenced by too high concentration of strong oxidizing ions can be avoided.

In some embodiments, referring to fig. 27 and 32, the strong oxidizing ion generating unit 362 includes an emitter electrode structure 3622, one end of the emitter electrode structure 3622 is provided as a tip structure 3621, and the emitter electrode structure 3622 is used to corona-discharge the tip structure 3621 to form a strong oxidizing ion group using a high voltage provided by a high voltage power source. Specifically, the tip structures 3621 are provided in two or more.

In some embodiments, referring to fig. 25, the first sterilization module further includes a built-in fan 34, the built-in fan 34 is disposed in the housing 31, the built-in fan 34 is disposed at one side of the strong oxidizing ion generating unit 362, and when sterilization is performed, circulation of air flow in the space is promoted by turning on the built-in fan 34, so that sterilization efficiency is accelerated.

In some embodiments of the present application, the emitter electrode structure 3622 further includes a counter electrode and a holder, wherein the holder is detachably fixed in the receiving space 35, and the counter electrode is mounted on the holder.

The opposite electrode comprises a high-voltage motor and a collecting electrode, the high-voltage electrode is connected with high voltage, the collecting electrode is grounded or connected with low voltage, and the high-voltage electrode and the collecting electrode are fixed on the bracket at intervals.

The high-voltage electrode has a tip structure 3621 protruding from the side facing the collecting electrode, and the counter electrode of the strong oxidizing ion generating unit 362 is discharged by the tip structure 3621.

For example, the high voltage electrode is connected with negative high voltage, and a large amount of negative ions are generated by discharging at the needle tip structure 3621, and the generated negative ions are contacted with bacteria and dust in the air, so that the sterilizing effect is achieved. Specifically, the relative voltage of the opposite electrode to the ground or the opposite electrode to the high-voltage electrode of the needle tip structure 3621 is 0, and the direct current negative high voltage range of the two needle tip electrodes is-2.5 to-5 kV.

In some implementations of this embodiment, the ion generating device further includes a positive and negative ion generating unit 361, and plankton bacteria in air in the refrigerator can be efficiently and quickly removed by the positive and negative ion generating unit 361.

Referring to fig. 28, the positive and negative ion generating unit 361 further includes a positive electrode 3611 and a negative electrode 3612 provided on a side of the built-in fan 34 near the outlet 33, the positive electrode 3611 and the negative electrode 3612 being arranged along a length direction of the case 31, the positive electrode 3611 and the negative electrode 3612 forming a positive ion group and a negative ion group using a high voltage supplied from a high voltage power source.

In some embodiments, the positive and negative ion generating unit 361 uses carbon brushes as discharge electrodes, however, the technical solutions of the present application are applicable to other electrodes, such as, for example, needle-shaped discharge electrodes. The direct current negative high voltage range of the negative high voltage carbon brush electrode is as follows: -2 to-9 kV, wherein the direct current positive high voltage range of the positive high voltage carbon brush electrode is as follows: the positions of the positive high voltage electrode and the negative high voltage electrode are not limited to 2-9kV, and the positions of the positive high voltage electrode and the negative high voltage electrode can be interchanged in the drawing.

In some embodiments of the present application, bacteria introduced into the refrigerator compartment 1 due to the fresh air oxygen-reducing function are addressed. The controller 6 is configured to manually or automatically turn on the first sterilization module after the fresh air oxygen-reducing function is completed, and the first sterilization module generates ion groups to sterilize the air in the refrigerating chamber 1, the inner wall of the refrigerating chamber 1 and the food materials, thereby improving the food material preservation condition in the refrigerating chamber 1.

In some implementations of this embodiment, the first sterilization module may be operated after the vacuum pump assembly 8 is turned off or when the vacuum pump assembly 8 is about to be turned off to address bacteria outside the cabinet 100 introduced by the fresh air cooling process in the fresh air cooling process.

It should be noted that, during the normal storage process of the refrigerating chamber 1, the ion generating device is turned on at regular time to sterilize the refrigerating chamber 1, so as to remove the attached bacteria and bacteria in the refrigerating chamber 1 and prolong the storage time of the food materials.

In some embodiments, the start-stop of the first sterilization module may be set by a preset operation time, and specifically, when the operation time reaches the preset operation time, the first sterilization module is turned off.

In some embodiments, the working time of the first sterilization module can also be controlled by detecting the bacterial content in the refrigerating chamber 1, and when the bacterial content in the refrigerating chamber 1 is the first preset bacterial content, the first sterilization module is closed; when the bacteria content in the refrigerating chamber 1 is not lower than the first preset bacteria content, the operation of the first sterilization module is maintained.

Referring to fig. 18, the control logic of the sterilizing operation of the refrigerator after the fresh air is reduced in oxygen will be described with reference to the refrigerator compartment 1.

The vacuum pump assembly 8 pumps the refrigerating chamber 1 (step S1801);

judging whether the oxygen content in the refrigerating chamber 1 detected by the oxygen concentration detection means reaches a preset oxygen content (step S1802);

in step S1802, if the oxygen content in the refrigerating chamber 1 reaches the preset oxygen content, step S1803 is performed to turn off the vacuum pump assembly 8; step S1804 is executed again, the high-voltage power supply is turned on, and the ion generating device generates ion groups;

judging whether the operation time of the ion generating device reaches a first preset operation time (step S1805);

in step S1805, if the working time reaches the first preset working time, step S1806 is executed, the high-voltage power supply is turned off, and the ion generating device is turned off;

in step S1805, if the working time does not reach the first preset working time, step S1805 is performed.

In step S1802, if the oxygen content in the refrigerating compartment 1 does not reach the preset oxygen content, step S1802 is performed.

In step S1805, it is also possible to control whether the first sterilization module is turned off by judging the bacterial content in the refrigerating compartment 1.

In some implementations of the present embodiment, during the sterilization of the refrigerating compartment 1, it is necessary to detect whether the door is opened, and when the door is opened, the first sterilization module is closed; and in a certain period of time, when the door body is detected to be closed again, the first sterilization module is started again to finish the sterilization work of the refrigerating chamber 1.

In some embodiments, the opening time of the door body may be collected, when the opening time of the door body reaches the preset opening time, the first sterilization module is closed, and when the opening time of the door body does not reach the preset opening time and the first sterilization module is in an open state, the opening of the first sterilization module is maintained.

Through the arrangement, the frequent start and stop of the first sterilization module are avoided.

In some embodiments of the present application, a sterilization module is also disposed in the fresh-keeping drawer 11 of the refrigerator, and the sterilization module disposed in the fresh-keeping drawer 11 is defined as a second sterilization module, for removing planktonic bacteria in the air in the fresh-keeping drawer 11, attached bacteria attached to the inner side wall of the fresh-keeping drawer 11, food materials, and the like.

It should be noted that the structures of the first sterilization module and the second sterilization module may be the same or different, and only bacteria in the space may be eliminated.

In some embodiments, the first sterilization module may release at least ozone and utilize at least a portion of the ozone to sterilize and deodorize. So as to meet the daily sterilization requirement of the refrigerating chamber 1 and solve the problem of bacterial pollution caused by the fresh air oxygen reduction process of the refrigerating chamber 1.

In some embodiments, the second sterilization module may release at least ozone and utilize at least a portion of the ozone to sterilize and deodorize. So as to solve the problems of daily preservation sterilization of the fresh-keeping drawer 11 and bacterial pollution caused by the fresh air oxygen-reducing process of the fresh-keeping drawer 11.

It can be known that, during the air extraction process of the vacuum pump assembly 8, the air in the fresh-keeping drawer 11 is extracted, and the ion group in the air enters the second pipeline assembly along with the air flow, so as to remove the attached bacteria and the planktonic bacteria in the second pipeline assembly.

In some embodiments of the present application, bacteria introduced into the fresh food drawer 11 due to the fresh air oxygen reduction function are addressed. The controller 6 is configured to manually or automatically start the second sterilization module after the fresh air oxygen reduction function is completed, and the second sterilization module generates ion groups to sterilize the air in the fresh-keeping drawer 11, the inner wall of the fresh-keeping drawer 11 and the food materials in the fresh-keeping drawer 11, so as to improve the food material preservation condition in the fresh-keeping drawer 11.

In some implementations of this embodiment, the second sterilization module may be activated after the vacuum pump assembly 8 is turned off or when the vacuum pump assembly 8 is about to be turned off to address bacteria outside the cabinet 100 or inside the refrigerator compartment 1 introduced by the fresh air drawer 11 during the fresh air oxygen reduction process.

It should be noted that, during the normal storage process of the fresh-keeping drawer 11, the second sterilization module is opened at regular time to sterilize the fresh-keeping drawer 11, so as to remove the attached bacteria and plankton in the fresh-keeping drawer 11 and prolong the storage time of the food.

In some embodiments, the working time of the second sterilization module may also be set by a preset working time, and specifically, when the working time of the second sterilization module reaches the second preset working time, the second sterilization module is turned off.

In some embodiments, the working time of the second sterilization module can also be controlled by detecting the bacterial content in the fresh-keeping drawer 11, and when the bacterial content in the fresh-keeping drawer 11 is lower than the second preset bacterial content, the second sterilization module is closed; when the bacteria content in the fresh drawer 11 is not lower than the second preset bacteria content, the second sterilization module is kept working.

It should be noted that the second preset bacteria content is a preset bacteria content suitable for food preservation in the fresh-keeping drawer 11 preset by considering the performances of each side of the fresh-keeping drawer 11. The first preset bacterial content is the preset bacterial content which is suitable for food preservation in the refrigerating chamber 1 and is preset by considering all the performances of the refrigerating chamber 1.

Referring to fig. 19, the control logic of the sterilization operation of the refrigerator after the fresh air is reduced in oxygen will be described with reference to the fresh air drawer 11.

The vacuum pump assembly 8 pumps the fresh-keeping drawer 11 (step S1901);

judging whether the oxygen content in the fresh-keeping drawer 11 detected by the oxygen concentration detection device reaches the corresponding preset oxygen content (step S1902);

in step S1902, if the oxygen content in the fresh-keeping drawer 11 reaches the preset oxygen content, step S1903 is performed, and the vacuum pump assembly 8 is turned off; step S1904 is executed again, the high-voltage power supply is turned on, and the ion generating device generates ion groups;

judging whether the operating time of the ion generating device reaches a second preset operating time (step S1905);

in step S1905, if the working time reaches the second preset working time, step S1906 is executed, the high-voltage power supply is turned off, and the ion generating device is turned off;

in step S1905, if the working time does not reach the second preset working time, step S1905 is performed.

In step S1902, if the oxygen content in the fresh food drawer 11 does not reach the preset oxygen content, step S1902 is performed.

In step S1905, it may also be controlled whether to close the second sterilization module by determining the bacteria content in the fresh drawer 11.

In some implementations of this embodiment, during the sterilization of the fresh-keeping drawer 11, it is necessary to detect whether the fresh-keeping drawer 11 is opened, close the second sterilization module when the fresh-keeping drawer 11 is opened, and open the second sterilization module again to complete the sterilization of the fresh-keeping drawer 11 when it is detected that the fresh-keeping drawer 11 is closed again.

In some embodiments, the opening time of the fresh-keeping drawer 11 may also be collected, when the opening time of the fresh-keeping drawer 11 reaches the preset drawer time, the second sterilization module is closed, and when the opening time of the fresh-keeping drawer 11 does not reach the preset drawer time and the second sterilization module is in the open state, the second sterilization module is kept open.

Through the arrangement, the frequent start and stop of the second sterilization module are avoided.

In some embodiments, after the vacuum pump assembly 8 is turned off, the high voltage power supply is turned on, and the positive and negative ion generating unit 361 releases positive and negative ion groups to remove bacteria introduced outside the cabinet 100 or inside the refrigerating compartment 1 due to gas replacement during fresh air oxygen reduction.

Through only opening positive negative ion generating unit 361 after new trend falls oxygen to get rid of the planktonic fungus that carries out new trend and falls the room of oxygen, realize accurate degerming, can reduce unnecessary energy consumption simultaneously.

In some embodiments of the present embodiment, the first sterilization module may be turned on according to the closing action of the vacuum pump assembly 8, and in the fresh air oxygen reduction process, whether the first sterilization module is turned on or not may be controlled by determining the bacterial content in the refrigerating chamber 1.

Specifically, in the fresh air oxygen reduction process of the refrigerating chamber 1, when the bacterial content in the refrigerating chamber 1 reaches a third preset bacterial content, the first sterilization module is started. It is known that the third preset bacteria content is set to the bacteria content when the refrigerator compartment 1 needs to be sterilized.

Similarly, in some embodiments, the second sterilization module may be opened according to the closing action of the vacuum pump assembly 8, and in the process of reducing the oxygen in the fresh air of the fresh-keeping drawer 11, whether the second sterilization module is opened may be controlled by determining the bacteria content in the fresh-keeping drawer 11.

Specifically, in the fresh air oxygen reduction process of the fresh-keeping drawer 11, when the bacterial content in the fresh-keeping drawer 11 reaches the fourth preset bacterial content, the second sterilization module is started. It will be appreciated that the third predetermined bacteria content is set to the bacteria content of the fresh food drawer 11 when sterilization is required.

Referring to fig. 20, the control logic of the first sterilization module during fresh air oxygen reduction in the refrigerating compartment 1 is illustrated with respect to the refrigerating compartment 1.

The vacuum pump assembly 8 pumps the refrigerating chamber 1 (step S2001);

judging whether the bacterial content in the refrigerating chamber 1 reaches a third preset bacterial content (step S2002);

in step S2002, if the bacterial content in the refrigerating chamber 1 reaches the third preset bacterial content, step S2003 is executed, the high-voltage power supply is turned on, and the first sterilization module releases the ion group;

in step S2002, if the bacterial content in the refrigerating compartment 1 does not reach the third preset bacterial content, step S2002 is performed.

Through the steps, the sterilization module is started not only after the fresh air oxygen reduction action is completed, but also the bacteria content is detected in the fresh air oxygen reduction process, so that the bacteria in the refrigerating chamber 1 are prevented from polluting other parts in the fresh air oxygen reduction process.

It should be appreciated that the fresh drawer 11 can also be used to detect the bacteria content during the fresh air oxygen-reducing operation to avoid the bacteria in the fresh drawer 11 from contaminating other components.

In some embodiments of the present application, the refrigerator includes a vacuum pump assembly 8, a pipeline assembly and an air conditioning film assembly connected with the refrigerating chamber 1 or the fresh-keeping drawer 11, so that when fresh air ventilation of the refrigerating chamber 1 is realized, the oxygen content of air in the refrigerating chamber 1 can be reduced, and when fresh air ventilation of the fresh-keeping drawer 11 is realized, the oxygen content of air in the fresh-keeping drawer 11 is reduced; meanwhile, the refrigerator further comprises a sterilization module, and the sterilization module is started after the fresh air oxygen reduction action is carried out, so that bacteria outside the refrigerator body 100 or inside the refrigerating chamber 1 introduced by air flow replacement are removed, the bacteria content inside the refrigerating chamber 1 or the fresh-keeping drawer 11 is reduced, and the storage quality of the refrigerating chamber 1 or the fresh-keeping drawer 11 is improved.

In some embodiments of the present application, cross-contamination is avoided by circulating bacteria within the refrigerated compartment 1 through the air stream into the first duct assembly, vacuum pump assembly 8 or other compartment. The sterilization function is started before the fresh air oxygen reduction function is performed.

Specifically, the controller 6 is configured to turn on the high-voltage power supply before turning on the vacuum pump assembly 8, so that the first sterilization module releases ion groups to remove attached bacteria and planktonic bacteria in the refrigerating chamber 1, so as to avoid pollution to the first air-conditioning membrane assembly 101, the first pipeline assembly and the vacuum pump assembly 8 in the gas replacement process, avoid cross contamination between the chambers, and prolong the service time of the air-conditioning membrane assembly and the service time of the refrigerator.

In some embodiments, the first sterilization module may continue to operate for a period of time after the vacuum pump assembly 8 is turned off to ensure a sterilization effect within the refrigerator compartment 1.

In some implementations of this embodiment, when the sterilization process is performed on the refrigerating chamber 1 and the fresh air and oxygen reduction action is performed, it is required to detect whether the door is opened, and when the door is opened, the first sterilization module is closed, and the vacuum pump assembly 8 is closed; and in a certain period of time, when the door body is detected to be closed again, the first sterilization module is started again to finish sterilization of the refrigerating chamber 1, and the vacuum pump assembly 8 is started to pump air out of the refrigerating chamber 1.

In some embodiments, the opening time of the door body may also be collected, when the opening time of the door body reaches the preset opening time, the first sterilization module and the vacuum pump assembly 8 are closed, and when the opening time of the door body does not reach the preset opening time and the first sterilization module is in the open state, the first sterilization module and the vacuum pump assembly 8 are kept open.

By the arrangement, frequent start and stop of the first sterilization module are avoided.

Referring to fig. 21, control logic of sterilizing operation of the refrigerator before fresh air is reduced in oxygen will be described with reference to the refrigerator compartment 1.

Receiving a control instruction for starting the operation of the vacuum pump assembly 8 (step S2101);

turning on the high voltage, the first sterilization module generates ion groups (step S2102);

the vacuum pump assembly 8 pumps the refrigerating chamber 1 (step S2103);

judging whether the oxygen content in the refrigerating chamber 1 detected by the oxygen concentration detection means reaches a preset oxygen content (step S2104);

in step S2104, if the oxygen content in the refrigerating chamber 1 reaches the preset oxygen content, step S2105 is performed to turn off the vacuum pump assembly 8;

judging whether or not the vacuum pump assembly 8 off time reaches a preset off time (step S2106);

in step S2106, if the off time of the vacuum pump assembly 8 reaches the preset off time, step S2107 is executed to turn off the high-voltage power supply, and the first sterilization module stops generating ion groups;

in step S2106, if the off time of the vacuum pump assembly 8 does not reach the preset off time, step S2106 is performed;

in step S2104, if the oxygen content in the refrigerating chamber 1 does not reach the preset oxygen content, step S2104 is performed.

In some embodiments, the first sterilization module may be operated for a period of time and then subjected to fresh air oxygen reduction, i.e. the vacuum pump assembly 8 is turned on again, so as to ensure the sterilization effect of the first sterilization module and reduce bacterial cross contamination.

In some implementations of the present embodiment, a first sterilization module is disposed adjacent to the first air conditioning membrane assembly 101 to increase the efficiency of sterilizing the extracted air stream.

In some embodiments of the present application, cross-contamination is avoided by circulating bacteria within the fresh food drawer 11 through the air flow into the second conduit assembly, vacuum pump assembly 8, or other compartment. The sterilization function is started before the fresh air oxygen reduction function is performed.

Specifically, the controller 6 is configured to turn on the high-voltage power supply before turning on the vacuum pump assembly 8, so that the second sterilization module releases ion groups to remove attached bacteria and planktonic bacteria in the fresh-keeping drawer 11, so as to avoid pollution to the second air-conditioning membrane assembly 102, the second pipeline assembly and the vacuum pump assembly 8 in the gas replacement process, avoid cross contamination between compartments, and prolong the service time of the air-conditioning membrane assembly and the service time of the refrigerator.

In some embodiments, the second sterilization module may continue to operate for a period of time after the vacuum pump assembly 8 is turned off to ensure a sterilization effect within the fresh food drawer 11.

In some implementations of the present embodiment, during sterilization of the fresh-keeping drawer 11, it is necessary to detect whether the fresh-keeping drawer 11 is open, and when the fresh-keeping drawer 11 is open, close the second sterilization module; and in a certain period of time, when the fresh-keeping drawer 11 is detected to be closed again, the second sterilization module is opened again to finish the sterilization of the fresh-keeping drawer 11.

In some implementations of this embodiment, when the fresh-keeping drawer 11 is sterilized and fresh air is used for reducing oxygen, it is necessary to detect whether the fresh-keeping drawer 11 is opened, and when the fresh-keeping drawer 11 is opened, the second sterilization module is closed, and the vacuum pump assembly 8 is closed; and in a certain period of time, when the fresh-keeping drawer 11 is detected to be closed again, the second sterilization module is started again to complete sterilization of the fresh-keeping drawer 11, and the vacuum pump assembly 8 is started to suck air from the fresh-keeping drawer 11.

In some embodiments, the opening time of the fresh-keeping drawer 11 may also be collected, when the opening time of the fresh-keeping drawer 11 reaches the preset drawer time, the second sterilization module and the vacuum pump assembly 8 are closed, and when the opening time of the fresh-keeping drawer 11 does not reach the preset drawer time and the second sterilization module is in the open state, the second sterilization module and the vacuum pump assembly 8 are kept open.

Referring to fig. 22, the control logic of the sterilization operation of the ice bin prior to the fresh air oxygen reduction is illustrated with fresh air drawer 11.

Receiving a control command for starting the operation of the vacuum pump assembly 8 (step S2201);

turning on the high voltage, the second sterilization module generates ion groups (step S2202);

the vacuum pump assembly 8 pumps the fresh-keeping drawer 11 (step S2203);

judging whether the oxygen content in the fresh-keeping drawer 11 detected by the oxygen concentration detection device reaches the preset oxygen content (step S2204);

in step S2204, if the oxygen content in the fresh-keeping drawer 11 reaches the preset oxygen content, step S2205 is performed to turn off the vacuum pump assembly 8;

judging whether the closing time of the vacuum pump assembly 8 reaches a preset closing time (step S2206);

in step S2206, if the off time of the vacuum pump assembly 8 reaches the preset off time, step S2207 is executed to turn off the high voltage power supply, and the second sterilization module stops generating ion groups;

in step S2206, if the off time of the vacuum pump assembly 8 does not reach the preset off time, step S2206 is performed;

in step S2204, if the oxygen content in the fresh food drawer 11 does not reach the preset oxygen content, step S2204 is performed.

In some embodiments, the second sterilization module may be operated for a period of time and then subjected to fresh air oxygen reduction, i.e. the vacuum pump assembly 8 is turned on again, so as to ensure the sterilization effect of the second sterilization module and reduce bacterial cross contamination.

In some implementations of this embodiment, a second sterilization module is disposed adjacent to the second modified atmosphere membrane assembly 102 to increase the efficiency of sterilizing the extracted gas stream.

In some implementations of this embodiment, the sterilization module may also be configured as an ultraviolet lamp that sterilizes the air by emitting ultraviolet light.

In some embodiments of the present application, the refrigerator further comprises a deodorizing module, and the refrigerator is further provided with a deodorizing module for removing odor molecules in the air. The odor removal module can be provided as a photocatalyst, activated carbon, or the like.

In some embodiments, the odor detection device is used for detecting the odor concentration in the space, so as to serve as a basis for the odor removal module to work.

In some implementations of this embodiment, when the odor concentration detected by the odor detection device reaches the first set range condition, it is determined that the odor concentration in the case 100 is high at this time, and removal is required, and the odor removal module is turned on at this time. So as to avoid odor tainting caused by airflow flowing in the fresh air oxygen reduction process.

In some embodiments, when the odor concentration detected by the odor detection device reaches the end working condition, it is determined that the odor concentration in the case 100 is in the normal range at this time, and the odor purifying module is turned off.

In some implementations of this embodiment, the odor purifying module further includes a photocatalyst catalysis unit 363, where the photocatalyst catalysis unit 363 is disposed on a side of the built-in fan 34 near the outlet 33, and in this application, a DBD (dielectric barrier) discharge is used to couple the photocatalyst, so as to realize a low-temperature plasma discharge and a photocatalyst/metal oxide catalyst catalysis function, thereby realizing a rapid and efficient odor purifying effect.

In the technical scheme of the application, the main function of the photocatalyst catalysis unit 363 is odor removal, electrons and holes are generated by the high-voltage electro-field excitation photocatalyst, and the electrons migrate from a valence band to a conduction band and then react with O ₂ The reaction takes place, the reaction formula is:

the valence band cavity reacts with H2O in the air, and the reaction formula is:

h ⁺ +H ₂ O→.OH

OH has strong oxidizing property, and the air sucked into the box 100 by the built-in fan 34 oxidizes and decomposes the odor molecules in the air at the photocatalyst catalysis unit 363, thereby playing a role in strong and rapid odor removal.

Referring to fig. 29, the photocatalyst catalyzing unit 363 includes a substrate plate 3631, a photocatalyst layer 3634 wrapped on an outer surface of the substrate plate 3631, and first and second electrode plates 3632 and 3633 disposed opposite to each other and located at both sides of the substrate plate 3631, the first and second electrode plates 3632 and 3633 being electrically connected to a high voltage power source. The substrate plate 3631 is disposed on a side of the built-in fan 34 near the outlet 33, and a plurality of through holes are formed in the substrate plate 3631 along the direction of airflow direction, so that the passing rate of the airflow is improved, the surface area of the photocatalyst layer 3634 is increased, the odor removing efficiency is improved, and the air in the box 100 flows out from the outlet 33 of the built-in fan 34 under the action of the built-in fan 34, flows through the photocatalyst layer 3634 and flows back to the box 100 through the outlet 33.

The photocatalyst catalyzing unit 363 uses the high voltage electric field generated by the first electrode plate 3632 and the second electrode plate 3633 to excite the photocatalyst layer 3634 to generate strong oxidation molecules so as to decompose the odor molecules in the case 100.

In some embodiments, the substrate plate 3631 is configured as a porous ceramic, and the photocatalyst is coated or impregnated on the surface of the porous ceramic to achieve a low temperature plasma discharge synergistic photocatalyst/metal oxide catalyst catalytic function. The photocatalyst may be TiO ₂ Cu and Mn oxide are doped.

In some embodiments, referring to fig. 30, the first electrode plate 3632 and the second electrode plate 3633 are configured as plate-wire mesh electrodes, which can be effective for both occasional photocatalyst excitation and windage reduction. It should be noted that the two plate-wire electrodes may be interchanged.

In some embodiments, referring to fig. 31, first electrode plate 3632 and second electrode plate 3633 may also be provided as plate-plate mesh counter electrodes.

In some embodiments, which are not shown, the first electrode plate 3632 and the second electrode plate 3633 may be provided as plate-line-shaped counter electrodes, and plate electrodes or line electrodes may be provided above and below the base plate 3631.

In some embodiments, which are not shown, the first electrode plate 3632 and the second electrode plate 3633 may be provided as plate-plate counter electrodes, and plate electrodes or wire electrodes may be provided above and below the base plate 3631.

The discharge parameters in this embodiment are: the two electrode voltages are 2 positive and negative high voltages of the same frequency and same amplitude and opposite phase of the cosine pulse, and the peak value range of the cosine positive high voltage is as follows: 1.5-2.8 kv, corresponding cosine negative high-voltage peak value range: -1.5 to-2.8 kv. The distance between the two electrodes corresponding to the above voltage was 20mm.

The electrode voltage may be a cosine pulse negative high voltage (cosine negative high voltage peak value range: 2.5 to-4.5 kv) or a cosine pulse positive high voltage (cosine positive high voltage peak value range: 2.5 to 4.5 kv), and the relative voltage of the counter electrode to the high voltage electrode is "0" in this case. The distance between the two electrodes corresponding to the above voltage was 20mm.

In some implementations of some embodiments, referring to fig. 8, the distance between the first electrode plate 3632 and the substrate plate 3631 is 0.1mm-5mm, and likewise, the distance between the second electrode plate 3633 and the substrate plate 3631 is 0.1mm-5mm.

Based on the interval between the two electrodes, the DBD discharge voltage is relatively low, so that the photocatalyst can be efficiently excited, ozone is not generated, or the ozone generation amount is low and is lower than the user perception threshold, therefore, the photocatalyst catalysis unit 363 which utilizes the DBD discharge to couple the photocatalyst can continuously operate, the odor removal speed is accelerated, the odor removal efficiency is improved, the operation control program is not required to be arranged to reduce the discharge time and the frequency in order to control the ozone at a lower concentration like a common odor removal module, and the odor removal speed is reduced.

In some embodiments of the present application, the controller 6 is configured to, when the odor concentration detected by the first odor detection device reaches a first preset odor concentration threshold value, start the vacuum pump assembly 8, and utilize the vacuum pump assembly 8 to pump the refrigerating chamber 1, so as to promote gas circulation inside and outside the refrigerating chamber 1; the high voltage power supply is turned on, and the photocatalyst catalyzing unit 363 releases the strong oxidizing molecules.

Through the steps, the odor removing module (exemplarily, the photocatalyst catalytic unit 363 in the application) and the fresh air oxygen reducing module are used for simultaneously acting, odor molecules in the air are removed by the odor removing module, and the fresh air oxygen reducing module is used for carrying out gas replacement, so that the odor removing efficiency of the refrigerating chamber 1 is improved. Meanwhile, the odor removing module is matched for odor removing, so that odor tainting among the first air adjusting membrane component 101, the first pipeline component, the vacuum pump component 8 and the refrigerating chamber 1 can be effectively prevented.

In some embodiments of the present application, the controller 6 is configured to, when the odor concentration detected by the second odor detection device reaches a second preset odor concentration threshold, start the vacuum pump assembly 8, and utilize the vacuum pump assembly 8 to pump the fresh-keeping drawer 11, so as to promote the gas circulation inside and outside the fresh-keeping drawer 11; the high voltage power supply is turned on, and the photocatalyst catalyzing unit 363 releases the strong oxidizing molecules.

Through the steps, the odor removing module (exemplarily, the photocatalyst catalytic unit 363 in the application) and the fresh air oxygen reducing module are utilized to act simultaneously, odor molecules in the air are removed by the odor removing module, the fresh air oxygen reducing module is utilized to perform gas replacement, and the odor removing efficiency of the fresh-keeping drawer 11 is improved. Meanwhile, the odor removing module is matched for odor removing, so that odor tainting among the first air adjusting membrane component 101, the first pipeline component, the vacuum pump component 8 and the refrigerating chamber 1 can be effectively prevented.

Referring to fig. 23, the control logic of the odor removal of the refrigerator will be described by taking the refrigerating compartment 1 as an example.

Judging whether the refrigerating chamber is in a closed state (step S2303);

in step S2303, if the refrigerating compartment is in a closed state, step S2301 is performed;

in step S2303, if the refrigerating chamber is not in the closed state, step S2304 is performed, and the refrigerator alarms or the vacuum pump assembly pumps air in a preset working state.

Judging whether the odor concentration detected by the first odor detection device reaches a first preset odor concentration threshold (step S2301);

in step S2301, if the odor concentration reaches the first preset odor concentration threshold, step S2302 is performed, the vacuum pump assembly 8 is turned on, and the high voltage power supply is turned on;

In step S2301, if the odor concentration does not reach the first preset odor concentration threshold, step S2301 is performed.

It should be noted that, the first preset odor concentration threshold is a limit for deodorizing, and may be adjusted according to a user requirement.

It should be noted that the fresh air oxygen-reducing process, the sterilization process and the deodorizing process in the application are arranged in a relatively closed space, so that the efficiency of fresh air ventilation, sterilization and odor removal is improved. Of course, it can be known that the short opening of the closed space can avoid the switching of the component action, so as to avoid the frequent switching of the component and influence the service life of the component.

In some embodiments, the operating state of one or a combination of the vacuum pump assembly 8 and the photocatalyst catalytic unit 363 may be controlled by the magnitude of the odor concentration.

In some implementations of this embodiment, the odor elimination module may be integrated within the same housing 31 as the sterilization module.

In some embodiments of the present embodiment, in the fresh air oxygen reduction process, if the detected concentration of the odor in the room undergoing fresh air oxygen reduction reaches the preset threshold value of the concentration of the odor, at this time, the working state of the vacuum pump assembly 8 is maintained or the working frequency of the vacuum pump assembly 8 is increased, and the high-voltage power supply is turned on, so that the purification module generates a strong oxidizing ion group to adsorb the odor molecules in the air.

In some implementations of this example, the deodorizing action is performed before the fresh air is reduced in oxygen in the compartment, and the high voltage power supply is turned on to cause the purification module to generate a strongly oxidizing ion group. So as to remove smell before the fresh air oxygen-reducing action, and prevent the smell mixing problem between the room time and the components.

In some embodiments of the present application, the sterilization module and the odor elimination module may be integrated together to form a sterilization and odor elimination module such that the sterilization and odor elimination module generates ion clusters and ozone. The functions of the sterilization module and the odor removing module can be separated, so that the fine division of functions is realized.

It should be noted that, when the sterilizing and deodorizing module is used, the operating logic of the sterilizing and deodorizing module may refer to the sterilizing module and the deodorizing module separately.

The odor purifying module further comprises a cold catalyst catalytic unit 364, wherein the cold catalyst catalytic unit 364 is disposed on one side of the inner air duct near the outlet 33, and specifically, the cold catalyst catalytic unit 364 is disposed on one side of the photocatalyst catalytic unit 363 near the outlet 33, for further adsorbing and decomposing odor molecules in the air, and degrading ozone generated by high-voltage discharge of the strong oxidizing ion generating unit 362.

The cold catalyst catalysis unit 364 comprises a cold catalyst substrate, a plurality of through holes are formed in the cold catalyst substrate, a cold catalyst layer is wrapped on the outer surface of the cold catalyst substrate, air flow in the shell 31 flows through the cold catalyst layer and then flows back into the box 100 through the outlet 33, specifically, air flow in the shell 31 after being reacted by strong oxidizing ions, positive ions and negative ions passes through the cold catalyst layer, and the air flow is further cleaned, so that the cleaning effect is ensured. The cold catalyst substrate is illustratively a porous ceramic, the surface of which is coated with a cold catalyst.

In some embodiments, not shown, of the present embodiment, the refrigerator further includes an ethylene removing unit for removing ethylene in the box 100, which is an endogenous ripening physiological active factor released by the respiratory jump type fruits and vegetables when the fruits and vegetables are ripe after picking, and the reduction of the ethylene content in the storage environment can effectively prolong the preservation of the fruits and vegetables.

In some embodiments of the present application, a catalytic deodorizing module is provided at the exhaust of the vacuum pump assembly 8, which can decompose odorous substances, illustratively methyl mercaptan, volatile amines, etc., into carbon dioxide, water, etc.

It is known that the catalytic deodorizing module may be provided as a conventional catalytic or electro-active co-catalytic module.

For example, a photocatalyst and an ionic catalyst may be provided.

Through set up the catalysis at the gas vent of vacuum pump assembly 8 and remove the flavor module, can prevent inside the refrigerator bacterium or the peculiar smell diffusion that do not remove before outside box 100, influence the outside air quality of box 100, reduce user's experience.

In some embodiments of the present application, a degerming and deodorizing module is disposed on one side of the air conditioning membrane assembly, and degerming and deodorizing operations are performed before or simultaneously with oxygen reduction by using the fresh air unit (the vacuum pump assembly 8 and the air conditioning membrane assembly).

In some embodiments of the present application, a refrigerator is provided, which includes a vacuum pump assembly 8, a pipeline assembly and an air conditioning membrane assembly with a refrigerating chamber 1 or a fresh-keeping drawer 11, and is used for realizing fresh air ventilation of the refrigerating chamber 1, reducing oxygen content of air in the refrigerating chamber 1, and reducing oxygen content of air in the fresh-keeping drawer 11 while realizing fresh air ventilation of the fresh-keeping drawer 11; meanwhile, the refrigerator further comprises a sterilization module, and before fresh air oxygen reduction action is carried out, the sterilization module is started first, so that the pre-sterilization of the refrigerating chamber 1 or the fresh-keeping drawer 11 is realized, and bacteria in the refrigerating chamber 1 or the fresh-keeping drawer 11 can be prevented from polluting the air conditioning membrane assembly, the pipeline assembly and the vacuum pump assembly 8 along with air circulation.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A refrigerator, comprising:

The installation space is arranged between the inner container and the shell;

the compressor bin is arranged at the bottom of the box body;

a refrigerating chamber configured to be formed by the inner container for refrigerating and storing food materials;

a door body for opening or closing the refrigerating chamber;

a first flow gap configured as a gap at a junction of the door and the cabinet when the door closes the refrigerator compartment;

the first air conditioning membrane component is arranged at the top of the refrigerating chamber, and the permeability of the first air conditioning membrane component to oxygen is faster than the permeability of the first air conditioning membrane component to nitrogen;

a first sterilization module provided within the refrigeration compartment, the first sterilization module generating ion clusters and/or ozone for at least removing bacteria introduced within the refrigeration compartment;

the controller is configured to:

the vacuum pump assembly is used for exhausting air from the refrigerating chamber through the first air conditioning membrane assembly and exhausting the exhausted air to the outside of other compartments or the box body so as to ensure that a pressure difference exists between the inside and the outside of the refrigerating chamber;

The air outside the box body enters the refrigerating chamber through the circulation gap to at least form an air flow circulation path outside the refrigerating chamber, the vacuum pump assembly and the box body, and the air outside the box body enters the refrigerating chamber to replace part of air in the refrigerating chamber;

after the vacuum pump assembly is turned off, a first sterilization module is turned on, and the first sterilization module generates ion groups to remove bacteria introduced by gas entering the refrigerating chamber.

2. The refrigerator of claim 1, further comprising:

a second flow gap configured as a gap between the drawer body and an opening of the drawer housing after the drawer body and the drawer housing are assembled;

a second sterilization module provided within the fresh-keeping drawer, the second sterilization module generating ion clusters and/or ozone for at least removing bacteria introduced within the fresh-keeping drawer;

The controller is configured to:

controlling the vacuum pump assembly to pump air to the fresh-keeping drawer and exhausting the pumped air to other compartments or the outside of the box body so as to ensure that the pressure difference exists between the fresh-keeping drawer and the refrigerating chamber;

the air in the refrigerating chamber enters the refrigerating chamber through the second flowing gap to form an air flow circulation path outside the refrigerating chamber, the fresh-keeping drawer, the vacuum pump assembly and the box body, so that part of air in the fresh-keeping drawer is replaced;

and after the vacuum pump assembly is closed, opening a second sterilization module, wherein the second sterilization module generates ion groups so as to remove bacteria brought by newly introduced gas in the fresh-keeping drawer.

3. The refrigerator of claim 1, further comprising a first bacteria detection device provided within the refrigeration compartment for detecting a bacteria content within the refrigeration compartment;

4. The refrigerator of claim 1 or 2, wherein during operation of the vacuum pump assembly, the controller is configured to:

When the bacterial content in the refrigerating chamber reaches a third preset bacterial content, starting a first sterilization module;

5. The refrigerator of claim 1, further comprising a door closing detection assembly for detecting whether the refrigerating chamber is in a closed state;

6. The refrigerator of claim 5, wherein the controller is configured to record an opening time of the refrigerating chamber after the refrigerating chamber is opened during operation of the first sterilization module;

and when the opening time of the refrigerating chamber does not reach the preset opening time, keeping the first sterilization module open.

7. The refrigerator of any one of claims 1-3, further comprising a deodorizing module disposed within the refrigeration compartment for removing odor molecules within the refrigeration compartment;

The controller is configured to start the vacuum pump assembly when the odor concentration of the refrigerating chamber detected by the first odor detection device in the refrigerating chamber reaches a first preset odor concentration threshold value, and the vacuum pump assembly is utilized to pump air out of the refrigerating chamber so as to accelerate air flow circulation inside and outside the refrigerating chamber;

and/or

Opening the odor removing module to decompose odor molecules in the refrigerating chamber.

8. The refrigerator according to claim 1 or 2, wherein the first sterilization module is periodically turned on to sterilize the refrigerating chamber during storage of food in the refrigerating chamber;

and during the process of storing food materials in the fresh-keeping drawer, the second sterilization module is started at fixed time to sterilize the fresh-keeping drawer.

9. The refrigerator according to claim 1 or 2, further comprising:

the controller is configured to stop the vacuum pump assembly from pumping the refrigerating chamber when the oxygen concentration in the refrigerating chamber reaches the upper limit value of the first required oxygen content range during the pumping of the refrigerating chamber by the vacuum pump assembly;

And/or

10. A refrigerator, comprising:

the installation space is arranged between the inner container and the shell;

the compressor bin is arranged at the bottom of the box body;

a door body for opening or closing the refrigerating chamber;

a circulation gap configured as a gap at a junction of the door and the case when the door closes the refrigerating chamber;

the controller is configured to:

the air outside the box body enters the refrigerating chamber through the circulation gap to at least form an air flow circulation path outside the refrigerating chamber, the vacuum pump assembly and the box body, and the air outside the box body enters the refrigerating chamber to replace part of air in the refrigerating chamber; the method comprises the steps of carrying out a first treatment on the surface of the

Before the vacuum pump assembly is turned off, a first sterilization module is turned on, and the first sterilization module generates ion groups to remove bacteria introduced by gas entering the refrigerating chamber.