CN117570631A - Odor removing refrigerator and control method - Google Patents

Abstract

The application provides a smell removal refrigerator and a control method, wherein the smell removal refrigerator comprises: the air conditioner comprises a refrigerating chamber, an odor purifying air duct, a refrigerating air duct, an electric fan, an odor purifying functional module, a gas sensor and a circulating fan; the controller is configured to: acquiring the gas concentration detected by a gas sensor; if the gas concentration is greater than the first preset concentration, a first operation instruction is sent to control the electric air door to be opened, and the circulating fan is closed; and if the gas concentration is smaller than the first preset concentration, sending a second operation instruction to control the electric air door to be closed. When the odor is required to be removed, the electric air door is opened, so that the odor removing air duct is communicated with the refrigerating air duct, the refrigerating fan is opened to drive gas in the odor removing air duct to flow, the gas in the refrigerating chamber can pass through the odor removing functional module in the odor removing air duct, and the refrigerating air duct is not influenced to convey cold air for the refrigerating chamber, so that the problem that the odor removing effect of the refrigerator is influenced is solved.

Description

Odor removing refrigerator and control method

Technical Field

The application relates to the technical field of refrigerator purification, in particular to a smell purifying refrigerator and a control method.

Background

With the improvement of living standard, more and more food materials are stored in the refrigerator, and various smells can be emitted by food, so that the refrigerator is inconvenient to use due to the fact that the peculiar smell in the refrigerator is inconvenient to clean.

The refrigerator can realize the odor removing function by installing a large specific surface area adsorption module (active carbon, ceramic honeycomb and the like), catalyzing (metal catalyst) agent odor removing, photocatalysis, oxidative decomposition (ion generator, ozone generator) and the like.

The catalyst smell-removing is mainly prepared by taking active carbon with large specific surface area or ceramic honeycomb as a base material, taking a metal catalyst as a main functional component and adopting an integral molding or adhesion mode after molding. The catalyst module is arranged on the side wall of the refrigerating air duct, so that the problem of poor odor purifying effect caused by low contact efficiency of odor components and the module exists. When the catalyst module is arranged in the cold air duct flow channel, honeycomb holes or larger wind resistance are formed, and refrigeration of the refrigerator is influenced. The integrated module is designed to be used on a fan housing or at the top of a refrigerator, and the contact between the functional module and peculiar smell is improved through the built-in fan, but the integrated module is complex in structural design, and meanwhile, the fan performance requirement is high, so that the problem of high noise is easily caused.

Disclosure of Invention

The application provides a smell removal refrigerator and a control method, which are used for solving the problem that the smell removal of the refrigerator affects the refrigerating function of the refrigerator.

In a first aspect, the present application provides a deodorizing refrigerator comprising: the air conditioner comprises a refrigerating chamber, an odor purifying air duct and a refrigerating air duct;

the refrigerating chamber is connected with the odor removing air duct through an odor removing air outlet and an odor removing air return opening;

the refrigerating chamber is connected with the refrigerating air duct through a refrigerating air inlet and a refrigerating air outlet;

the refrigerating air duct is connected with the odor purifying air duct through an electric air door;

a refrigerating fan is arranged in the refrigerating air duct;

a circulating fan and a smell purifying functional module are arranged in the smell purifying air duct;

a gas sensor is arranged in the refrigerating chamber;

the refrigerating fan, the circulating fan, the electric air door and the gas sensor are respectively connected with a controller;

the controller is configured to:

acquiring the gas concentration detected by the gas sensor;

if the gas concentration is greater than a first preset concentration, a first operation instruction is sent to control the electric air door to be opened, and the circulating fan is closed;

and if the gas concentration is smaller than the first preset concentration, sending a second operation instruction to control the electric air door to be closed.

Optionally, the refrigerator further comprises a temperature sensor, wherein the temperature sensor is arranged in the refrigerating chamber and is connected with the controller;

the controller is further configured to:

acquiring the temperature of the refrigerating chamber detected by the temperature sensor;

acquiring a refrigerating chamber operation mode according to the refrigerating chamber temperature, wherein the refrigerating chamber operation mode comprises a refrigerating mode and a non-refrigerating mode;

if the gas concentration is greater than a second preset concentration and the refrigerating chamber is in a refrigerating mode, a first operation instruction is sent;

and if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in a non-refrigerating mode, sending a third operation instruction to control the electric air door to be closed, and opening the circulating fan.

Optionally, the second preset concentration is greater than the first preset concentration.

Optionally, the odor removing functional module is one or more of a catalyst module, a photocatalyst module, an ion generating module, an ozone generating module and a physical adsorption module.

Optionally, the odor removing functional module is provided with a honeycomb structure, and the extending direction of the honeycomb structure is horizontal to the flowing direction of the airflow in the odor removing air duct.

Optionally, the odor removing air duct is of a V-shaped structure, and the electric air door is arranged at the bending part of the odor removing air duct.

Optionally, the cross-sectional area of the odor removal air outlet is smaller than the cross-sectional area of the odor removal air return opening.

In a second aspect, the present application further provides a method for controlling a deodorizing refrigerator, which is applied to the deodorizing refrigerator in the first aspect, and includes:

acquiring the gas concentration detected by a gas sensor;

if the gas concentration is greater than a first preset concentration, a first operation instruction is sent to control the electric air door to be opened, and the circulating fan is closed;

and if the gas concentration is smaller than the first preset concentration, sending a second operation instruction to control the electric air door to be closed.

Optionally, the method further comprises:

acquiring the temperature of the refrigerating chamber detected by a temperature sensor;

acquiring a refrigerating chamber operation mode according to the refrigerating chamber temperature, wherein the refrigerating chamber operation mode comprises a refrigerating mode and a non-refrigerating mode;

if the gas concentration is greater than a second preset concentration and the refrigerating chamber is in a refrigerating mode, a first operation instruction is sent;

and if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in a non-refrigerating mode, sending a third operation instruction to control the electric air door to be closed, and opening the circulating fan.

According to the technical scheme, the application provides a smell removal refrigerator and a control method, wherein the smell removal refrigerator comprises: the air conditioner comprises a refrigerating chamber, an odor purifying air duct and a refrigerating air duct; the refrigerating chamber is connected with the odor removing air duct through an odor removing air outlet and an odor removing air return opening; the refrigerating chamber is connected with the refrigerating air duct through a refrigerating air inlet and a refrigerating air outlet; the refrigerating air duct is connected with the odor purifying air duct through an electric air door; a refrigerating fan is arranged in the refrigerating air duct; a circulating fan and a smell purifying functional module are arranged in the smell purifying air duct; a gas sensor is arranged in the refrigerating chamber; the refrigerating fan, the circulating fan, the electric air door and the gas sensor are respectively connected with a controller; the controller is configured to: acquiring the gas concentration detected by the gas sensor; if the gas concentration is greater than a first preset concentration, a first operation instruction is sent to control the electric air door to be opened, and the circulating fan is closed; and if the gas concentration is smaller than the first preset concentration, sending a second operation instruction to control the electric air door to be closed. When the odor is required to be removed, the electric air door is opened, the odor removing air duct is communicated with the refrigerating air duct, the refrigerating fan is started to drive gas in the odor removing air duct to flow, so that the gas in the refrigerating chamber can pass through the odor removing functional module in the odor removing air duct, and the refrigerating air duct is not influenced to convey cold air for the refrigerating chamber, so that the problem that the odor removing effect of the refrigerator is influenced is solved.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a deodorizing refrigerator according to an embodiment of the present application;

fig. 2 is a flowchart of a method for controlling a deodorizing refrigerator according to an embodiment of the present application;

fig. 3 is a flowchart of a method for controlling a deodorizing refrigerator according to a cooling mode according to an embodiment of the present application.

Reference numerals:

wherein, 1-the odor removing air duct; 2-refrigerating air duct; 3-an electric damper; 4-a smell removal air outlet; 5-an odor removal return air inlet; 6-a circulating fan; 7-an odor removal function module; 8-a gas sensor; 9-a controller; 10-refrigerating air inlet; 11-refrigerating air outlet; 12-a refrigerating fan; 13-temperature sensor.

Detailed Description

Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the examples below do not represent all embodiments consistent with the present application. Merely as examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

With the development of healthy refrigerators, the odor removal function has become an important direction of refrigerator research. The odor removing function in the refrigerator mainly comprises a large specific surface area adsorption module, catalyst odor removing, photocatalysis, oxidative decomposition and other modes.

The catalyst smell-removing is mainly prepared by taking active carbon with large specific surface area or ceramic honeycomb as a base material, taking a metal catalyst as a main functional component and adopting an integral molding or adhesion mode after molding. The refrigerator is mostly arranged in a refrigerating air duct or is applied in a mode of integrating modules. When setting up in being applied to the refrigeration wind channel, there are two kinds of circumstances, first for locating the wind channel lateral wall, can exist peculiar smell composition and integrated module contact inefficiency, leads to the odor removal effect poor. The second type is that when the honeycomb holes are arranged in the air duct flow channel, the honeycomb holes can cause larger wind resistance, and the refrigeration of the refrigerator is influenced.

In order to solve the problem that the odor of the refrigerator influences the refrigerating function of the refrigerator. Referring to fig. 1, fig. 1 is a schematic structural diagram of a deodorizing refrigerator according to some embodiments of the present application, including: the air conditioner comprises a refrigerating chamber, an odor purifying air duct 1 and a refrigerating air duct 2; the refrigerating chamber is connected with the odor removing air duct 1 through an odor removing air outlet 4 and an odor removing air return opening 5; the refrigerating chamber is connected with the refrigerating air duct 2 through a refrigerating air outlet 10 and a refrigerating air outlet 11; the refrigeration air duct 2 is connected with the odor removing air duct 1 through an electric air door 3; a refrigerating fan 12 is arranged in the refrigerating air duct 2; a circulating fan 6 and a smell purifying functional module 7 are arranged in the smell purifying air duct 1; a gas sensor 8 is arranged in the refrigerating chamber; the refrigerating fan 12, the circulating fan 6, the electric air door 3 and the gas sensor 8 are respectively connected with the controller 9.

The controller 9 is configured to: acquiring the gas concentration detected by the gas sensor 8; if the concentration is larger than the first preset concentration, a first operation instruction is sent to control the electric air door 3 to be opened, and the circulating fan 6 is closed; if the gas concentration is smaller than the first preset concentration, a second operation instruction is sent to control the electric throttle 3 to be closed.

The refrigerating air duct 2 is connected with the refrigerating chamber through the refrigerating air outlet 10 and the refrigerating air outlet 11, and after the refrigerating fan 12 is started, cold air in the refrigerating air duct 2 is driven to flow, so that the cold air is blown into the refrigerating chamber through the refrigerating air outlet 10, and then the cold air is sent into the refrigerating air duct through the refrigerating air outlet 11, so that air exchange in the refrigerating chamber is realized.

The odor purifying air duct 1 is connected with the refrigerating chamber through the odor purifying air return opening 5 and the odor purifying air outlet 4, the circulating fan 6 and the odor purifying functional module 7 are arranged in the odor purifying air duct 1, the gas concentration of gas in the refrigerating chamber is detected by the gas sensor 8 arranged in the refrigerating chamber, and when the air in the refrigerating chamber is required to be purified, the electric air door 3 can be opened, so that the gas can pass through the odor purifying functional module 7 in the odor purifying air duct 1, and the effect of purifying the air in the refrigerating chamber is realized.

Specifically, when the controller 9 receives that the gas concentration detected by the gas sensor 8 is greater than the first preset concentration, the controller 9 can send a first operation instruction to control the electric air door 3 to open and close the circulating fan 6, so that a part of air enters the odor removing air duct 1 from the electric air door 3, and then enters the refrigerating chamber from the odor removing air outlet 4 through the odor removing functional module 7, and the air after odor removal enters the refrigerating chamber.

When the gas concentration in the refrigerating chamber is smaller than the first preset concentration, namely the odor in the refrigerating chamber is successfully eliminated, the electric air door 3 can be controlled to be closed by the controller 9, and cold air enters the refrigerating chamber through the refrigerating air channel 2, so that the refrigerator can refrigerate normally.

By arranging the odor purifying air duct 1, the influence of the odor purifying functional module 7 on the refrigerating performance of the refrigerator can be reduced while the odor purifying function of the refrigerator is realized.

Meanwhile, in the process of deodorizing the refrigerator, the state of the refrigerator needs to be judged, and in some embodiments, the deodorizing refrigerator further comprises a temperature sensor 13, wherein the temperature sensor 13 is arranged in the refrigerating chamber, and the temperature sensor 13 is connected with the controller 9.

The controller 9 is further configured to:

the refrigerating compartment temperature detected by the temperature sensor 13 is acquired.

Acquiring a refrigerating chamber operation mode according to the temperature of the refrigerating chamber, wherein the refrigerating chamber operation mode comprises a refrigerating mode and a non-refrigerating mode;

and if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in a refrigerating mode, sending a first operation instruction.

If the gas concentration is greater than the second preset concentration and the refrigerating chamber is in the non-refrigerating mode, a third operation instruction is sent to control the electric air door 3 to be closed and the circulating fan 6 to be opened.

The temperature sensor 13 is mainly used for acquiring the temperature in the refrigerating chamber, and can judge the operation mode of the refrigerating chamber according to the temperature in the refrigerating chamber. For example, when the temperature sensor 13 detects a refrigerating chamber temperature less than or equal to a preset cooling temperature, it indicates that the refrigerating chamber is in a cooling mode, and when the refrigerating chamber temperature is greater than the preset cooling temperature, it indicates that the refrigerating chamber is in a non-cooling mode.

When the gas concentration detected by the controller 9 is greater than the second preset concentration and the refrigerating chamber is in the refrigerating mode, a first instruction may be sent to realize the odor removing function.

When the gas concentration detected by the controller 9 is greater than the second preset concentration and the refrigerating chamber is in the non-refrigerating mode, the refrigerating fan 12 is closed in the non-refrigerating mode, so that the circulating fan 6 needs to be controlled to be opened by the controller 9, the electric air door 3 is closed, the circulating fan 6 drives the air in the refrigerating chamber to flow, and the air flows through the odor purifying functional module 7 to realize odor purification.

When the air concentration in the refrigerating chamber is less than the first preset concentration, the deodorizing is completed, and the circulating fan 6 may be turned off. The odor purifying function of the refrigerating chamber is realized under the non-refrigeration mode through the circulating fan 6.

In some embodiments, the second preset concentration is greater than the first preset concentration. It will be appreciated that when the fresh food compartment is in the non-cooling mode, the air flow rate within the fresh food compartment is slower and, therefore, the concentration of malodour within the fresh food compartment is greater. Therefore, when the gas concentration is greater than the second preset concentration, the operation mode of the refrigerating chamber needs to be judged, and when the gas concentration is greater than the first preset concentration, the operation mode of the refrigerating chamber can also be judged through the temperature sensor 13, and in the non-refrigeration mode, the electric air door 3 needs to be closed and the circulating fan 6 needs to be opened, so that the air flow in the refrigerating chamber is realized through the circulating fan 6, and then the air flows through the odor purifying functional module 7 to realize odor purification.

In some embodiments, the odor removal function module 7 is one or more of a catalyst module, a photocatalyst module, an ion generation module, an ozone generation module, a physical adsorption module.

The catalyst module can decompose odor molecules into harmless substances through catalytic reaction, so that the odor purifying effect is realized. The catalyst module is generally composed of a catalyst material and a carrier, wherein the catalyst material can effectively decompose odor molecules, and the carrier can provide a larger contact area for the catalyst, so that the odor purifying efficiency is improved.

The photocatalyst module decomposes the odor molecules into harmless substances under the action of light. The photocatalyst is generally composed of a photocatalyst and a light source, and the photocatalyst can absorb light rays with specific wavelengths and decompose odor molecules into harmless substances by utilizing light energy.

The ion generation module generates negative oxygen ions or positive oxygen ions through the ion generator, and the negative oxygen ions and the positive oxygen ions can be combined with the odor molecules, so that the concentration of the odor molecules is reduced.

The ozone generating module may eliminate the odor by generating ozone. Ozone is a strong oxidant and can undergo oxidation-reduction reaction with odor molecules, thereby reducing the concentration of the odor molecules.

The physical adsorption module can adsorb the peculiar smell molecules on the adsorption material through adsorption, so that the concentration of the peculiar smell molecules is reduced. The physical adsorption module is generally composed of an adsorption material and a carrier, wherein the adsorption material can effectively adsorb odor molecules, and the carrier can provide a larger contact area for the adsorption material, so that the odor purifying efficiency is improved.

The odor removal function module 7 may be used alone or in combination to provide a more comprehensive and efficient odor removal performance by achieving an odor removal effect in a variety of ways, including but not limited to a catalyst module, a photocatalyst module, an ion generating module, an ozone generating module, and a physical adsorption module.

In some embodiments, the odor removal functional module 7 is provided with a honeycomb structure, and the extending direction of the honeycomb structure is horizontal to the airflow direction in the odor removal duct 1. Through setting up honeycomb at the odour removal functional module 7, can increase the area of contact of air and odour removal functional module 7 on the one hand to in order to improve purification efficiency, simultaneously, through setting up honeycomb's extending direction and the air current flow direction level in the odour removal wind channel 1, make the air can be more even through honeycomb, reduce the windage, noise reduction.

In some embodiments, the odor eliminating air duct 1 is of a V-shaped structure, and the electric air door 3 is arranged at the bending position of the odor eliminating air duct 1. The design of the odor removing air duct 1 adopts a V-shaped structure, which is helpful for improving the air circulation efficiency and reducing the noise.

In some embodiments, the cross-sectional area of the odor removal air outlet 4 is smaller than the cross-sectional area of the odor removal air return 5. The cross-sectional area of the odor purifying air outlet 4 is smaller than the cross-sectional area of the odor purifying air return opening 5, so that the flow rate of air entering the refrigerating chamber can be improved, the air in the refrigerating chamber can be driven to flow, the air in the refrigerating chamber can quickly flow out of the refrigerating chamber due to the fact that the cross-sectional area of the odor purifying air return opening 5 is large, odor purification is achieved through an odor purifying function mode, and odor purifying efficiency is improved.

In some embodiments, as shown in fig. 2, some embodiments of the present application further provide a method for controlling a deodorizing refrigerator, which is applied to the deodorizing refrigerator provided in the foregoing embodiments, and includes:

s100: the gas concentration detected by the gas sensor 8 is acquired.

S200: if the gas concentration is greater than the first preset concentration, a first operation instruction is sent to control the electric air door 3 to be opened, and the circulating fan 6 to be closed.

S300: if the gas concentration is smaller than the first preset concentration, a second operation instruction is sent to control the electric throttle 3 to be closed.

In some embodiments, as shown in fig. 3, the odor removal refrigerator control method further includes:

s400: acquiring the temperature of the refrigerating chamber detected by the temperature sensor 13;

s500: and acquiring a refrigerating chamber operation mode according to the temperature of the refrigerating chamber.

Wherein the refrigerating chamber operation mode includes a refrigerating mode and a non-refrigerating mode.

S600: and if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in a refrigerating mode, sending a first operation instruction.

S700: if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in the non-refrigerating mode, a third operation instruction is sent to control the electric air door 3 to be closed and the circulating fan 6 to be opened.

According to the technical scheme, the application provides a smell removal refrigerator and a control method, wherein the smell removal refrigerator comprises: the air conditioner comprises a refrigerating chamber, an odor purifying air duct 1 and a refrigerating air duct 2; the refrigerating chamber is connected with the odor removing air duct 1 through an odor removing air outlet 4 and an odor removing air return opening 5; the refrigerating chamber is connected with the refrigerating air duct 2 through a refrigerating air outlet 10 and a refrigerating air outlet 11; the refrigeration air duct 2 is connected with the odor removing air duct 1 through an electric air door 3; a refrigerating fan 12 is arranged in the refrigerating air duct 2; a circulating fan 6 and a smell purifying functional module 7 are arranged in the smell purifying air duct 1; a gas sensor 8 is arranged in the refrigerating chamber; the refrigerating fan 12, the circulating fan 6, the electric air door 3 and the gas sensor 8 are respectively connected with the controller 9; the controller 9 is configured to: acquiring the gas concentration detected by the gas sensor 8; if the gas concentration is greater than the first preset concentration, a first operation instruction is sent to control the electric air door 3 to be opened, and the circulating fan 6 is closed; if the gas concentration is smaller than the first preset concentration, a second operation instruction is sent to control the electric throttle 3 to be closed. When the odor is required to be removed, the electric air door 3 is opened, the odor removing air duct 1 is communicated with the refrigerating air duct 2, the refrigerating fan 12 is opened to drive the air in the odor removing air duct 1 to flow, the air in the refrigerating chamber can pass through the odor removing functional module 7 in the odor removing air duct 1, and the refrigerating air duct 2 is not influenced to convey cold air for the refrigerating chamber, so that the problem that the odor removing effect of the refrigerator on the refrigerating function of the refrigerator is solved.

The foregoing detailed description of the embodiments is merely illustrative of the general principles of the present application and should not be taken in any way as limiting the scope of the invention. Any other embodiments developed in accordance with the present application without inventive effort are within the scope of the present application for those skilled in the art.

Claims (9)

1. A flavor-removing refrigerator, comprising: the air conditioner comprises a refrigerating chamber, an odor purifying air duct (1) and a refrigerating air duct (2);

the refrigerating chamber is connected with the odor removing air duct (1) through an odor removing air outlet (4) and an odor removing air return opening (5);

the refrigerating chamber is connected with the refrigerating air duct (2) through a refrigerating air inlet (10) and a refrigerating air outlet (11);

the refrigerating air duct (2) is connected with the odor removing air duct (1) through an electric air door (3);

a refrigerating fan (12) is arranged in the refrigerating air duct (2);

a circulating fan (6) and a smell purifying functional module (7) are arranged in the smell purifying air duct (1);

a gas sensor (8) is arranged in the refrigerating chamber;

the refrigerating fan (12), the circulating fan (6), the electric air door (3) and the gas sensor (8) are respectively connected with a controller (9);

the controller (9) is configured to:

acquiring the gas concentration detected by the gas sensor (8);

if the gas concentration is larger than a first preset concentration, a first operation instruction is sent to control the electric air door (3) to be opened, and the circulating fan (6) is closed;

and if the gas concentration is smaller than the first preset concentration, sending a second operation instruction to control the electric air door (3) to be closed.

2. The deodorizing refrigerator according to claim 1, characterized by further comprising a temperature sensor (13), said temperature sensor (13) being disposed inside said refrigerating chamber, said temperature sensor (13) being connected to said controller (9);

the controller (9) is further configured to:

acquiring the temperature of the refrigerating chamber detected by the temperature sensor (13);

acquiring a refrigerating chamber operation mode according to the refrigerating chamber temperature, wherein the refrigerating chamber operation mode comprises a refrigerating mode and a non-refrigerating mode;

if the gas concentration is greater than a second preset concentration and the refrigerating chamber is in a refrigerating mode, a first operation instruction is sent;

and if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in a non-refrigerating mode, sending a third operation instruction to control the electric air door (3) to be closed, and opening the circulating fan (6).

3. The odor removal refrigerator of claim 2, wherein said second predetermined concentration is greater than said first predetermined concentration.

4. The odor removal refrigerator according to claim 1, wherein the odor removal function module (7) is one or more of a catalyst module, a photocatalyst module, an ion generation module, an ozone generation module, a physical adsorption module.

5. The deodorizing refrigerator according to claim 1, characterized in that said deodorizing function module (7) is provided with a honeycomb structure, the extension direction of which is horizontal to the air flow direction in said deodorizing air duct (1).

6. The odor removal refrigerator according to claim 1, wherein the odor removal air duct (1) is of a V-shaped structure, and the electric air door (3) is arranged at the bending position of the odor removal air duct (1).

7. A refrigerator according to claim 1, characterized in that the cross-sectional area of the odour-removal air outlet (4) is smaller than the cross-sectional area of the odour-removal return air inlet (5).

8. A method of controlling a deodorizing refrigerator, applied to the deodorizing refrigerator of any one of claims 1 to 7, comprising:

acquiring the gas concentration detected by a gas sensor (8);

if the gas concentration is larger than a first preset concentration, a first operation instruction is sent to control the electric air door (3) to be opened, and the circulating fan (6) is closed;

and if the gas concentration is smaller than the first preset concentration, sending a second operation instruction to control the electric air door (3) to be closed.

9. The method for controlling a deodorizing refrigerator according to claim 8, further comprising:

acquiring the temperature of the refrigerating chamber detected by a temperature sensor (13);

acquiring a refrigerating chamber operation mode according to the refrigerating chamber temperature, wherein the refrigerating chamber operation mode comprises a refrigerating mode and a non-refrigerating mode;

if the gas concentration is greater than a second preset concentration and the refrigerating chamber is in a refrigerating mode, a first operation instruction is sent;

and if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in a non-refrigerating mode, sending a third operation instruction to control the electric air door (3) to be closed, and opening the circulating fan (6).