Odor-free refrigerator and control method

Abstract

The application provides a deodorizing refrigerator and a control method. The deodorizing refrigerator comprises a refrigeration chamber, a deodorizing air duct, a refrigeration air duct, an electric fan, a deodorizing function module, a gas sensor and a circulating fan. A controller is configured to obtain a gas concentration detected by the gas sensor, send a first operation instruction to control the electric air door to open and the circulating fan to close if the gas concentration is greater than a first preset concentration, and send a second operation instruction to control the electric air door to close if the gas concentration is less than the first preset concentration. When deodorization is needed, the electric air door is opened to make the deodorizing air duct and the refrigeration air duct communicate, the refrigeration fan is opened to drive the gas in the deodorizing air duct to flow, and the gas in the refrigeration chamber can pass through the deodorizing function module in the deodorizing air duct without affecting the refrigeration air duct to deliver cold air to the refrigeration chamber, so as to solve the problem that deodorization of the refrigerator affects the refrigeration function of the refrigerator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator purification, in particular to a deodorizing refrigerator and a control method. BACKGROUND

[0002] With the improvement of living standards, the types of food stored in the refrigerator are increasing, and the food will emit various odors. The unpleasant odor in the refrigerator is inconvenient to remove, which will cause inconvenience in using the refrigerator.

[0003] The deodorizing function can be achieved in the refrigerator by installing a large specific surface area adsorption module (activated carbon, ceramic honeycomb, etc.), a catalyst (metal catalyst) deodorizing agent, photocatalysis, and oxidative decomposition (ion generator, ozone generator).

[0004] Among them, the catalyst deodorizing agent is mainly made by taking large specific surface area activated carbon or ceramic honeycomb as the substrate and taking metal catalyst as the main functional component, and is made by one-piece molding or attachment after molding. In the refrigerator, it is usually arranged in the refrigeration air duct or applied by an integrated module (with a fan). However, when the catalyst module is arranged on the side wall of the refrigeration air duct, the contact efficiency of the odor components with the module is low, resulting in poor deodorizing effect. When the catalyst module is arranged in the refrigeration air duct, the honeycomb holes cause a large air resistance, affecting the refrigeration of the refrigerator. The integrated module is usually designed on the air cover or the top of the refrigerator, and the built-in fan improves the contact between the functional module and the odor, but the integrated module has a complex structure design, and the performance requirements for the fan are high, which easily causes a large noise problem. SUMMARY

[0005] The present application provides a deodorizing refrigerator and a control method to solve the problem of deodorizing affecting the refrigeration function of the refrigerator.

[0006] In a first aspect, the present application provides a deodorizing refrigerator, comprising: a refrigeration chamber, a deodorizing air duct, and a refrigeration air duct;

[0007] The refrigeration chamber is connected with the deodorizing air duct through a deodorizing air outlet and a deodorizing air return;

[0008] The refrigeration chamber is connected with the refrigeration air duct through a refrigeration air inlet and a refrigeration air outlet;

[0009] The refrigeration air duct is connected with the deodorizing air duct through an electric air door;

[0010] The refrigeration air duct is provided with a refrigeration fan;

[0011] The deodorizing air duct is provided with a circulating fan and a deodorizing functional module;

[0012] The refrigeration chamber is provided with a gas sensor;

[0013] The refrigeration fan, the circulating fan, the electric air door and the gas sensor are connected with a controller respectively.

[0014] The controller is configured to:

[0015] acquire a gas concentration detected by the gas sensor;

[0016] if the gas concentration is greater than a first preset concentration, send a first operation instruction to control the electric air door to open and the circulating fan to close;

[0017] if the gas concentration is less than the first preset concentration, send a second operation instruction to control the electric air door to close.

[0018] Optionally, a temperature sensor is further included, which is arranged in the refrigeration chamber and connected with the controller.

[0019] The controller is further configured to:

[0020] acquire a refrigeration chamber temperature detected by the temperature sensor;

[0021] acquire a refrigeration chamber operation mode according to the refrigeration chamber temperature, the refrigeration chamber operation mode including a refrigeration mode and a non-refrigeration mode;

[0022] if the gas concentration is greater than a second preset concentration and the refrigeration chamber is in the refrigeration mode, send the first operation instruction;

[0023] if the gas concentration is greater than the second preset concentration and the refrigeration chamber is in the non-refrigeration mode, send a third operation instruction to control the electric air door to close and the circulating fan to open.

[0024] Optionally, the second preset concentration is greater than the first preset concentration.

[0025] Optionally, the odor removal function module is one or more of a catalyst module, a photocatalyst module, an ion generator module, an ozone generator module and a physical adsorption module.

[0026] Optionally, the odor removal function module is provided with a honeycomb structure, and an extension direction of the honeycomb structure is horizontal to a gas flow direction in the odor removal air duct.

[0027] Optionally, the odor removal air duct is of a V-shaped structure, and the electric air door is arranged at a bending position of the odor removal air duct.

[0028] Optionally, a cross-sectional area of the odor removal air outlet is smaller than a cross-sectional area of the odor removal air return outlet.

[0029] In a second aspect, the present application also provides a method for controlling a deodorizing refrigerator, applied to the deodorizing refrigerator of the first aspect, comprising:

[0030] obtaining a gas concentration detected by a gas sensor;

[0031] if the gas concentration is greater than a first preset concentration, sending a first operation instruction to control an electric damper to open and a circulating fan to close;

[0032] if the gas concentration is less than the first preset concentration, sending a second operation instruction to control the electric damper to close.

[0033] Optionally, the method further comprises:

[0034] obtaining a refrigeration chamber temperature detected by a temperature sensor;

[0035] obtaining a refrigeration chamber operation mode according to the refrigeration chamber temperature, the refrigeration chamber operation mode comprising a refrigeration mode and a non-refrigeration mode;

[0036] if the gas concentration is greater than a second preset concentration and the refrigeration chamber is in the refrigeration mode, sending the first operation instruction;

[0037] if the gas concentration is greater than the second preset concentration and the refrigeration chamber is in the non-refrigeration mode, sending a third operation instruction to control the electric damper to close and the circulating fan to open.

[0038] According to the above technical solution, the present application provides a deodorizing refrigerator and a control method. The deodorizing refrigerator comprises a refrigeration chamber, a deodorizing air duct and a refrigeration air duct. The refrigeration chamber is connected with the deodorizing air duct through a deodorizing air outlet and a deodorizing air return. The refrigeration chamber is connected with the refrigeration air duct through a refrigeration air inlet and a refrigeration air outlet. The refrigeration air duct is connected with the deodorizing air duct through an electric damper. A refrigeration fan is arranged in the refrigeration air duct. A circulating fan and a deodorizing functional module are arranged in the deodorizing air duct. A gas sensor is arranged in the refrigeration chamber. The refrigeration fan, the circulating fan, the electric damper and the gas sensor are respectively connected with a controller. The controller is configured to obtain a 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 damper to open and the circulating fan to close. If the gas concentration is less than the first preset concentration, a second operation instruction is sent to control the electric damper to close. When deodorization is needed, the electric damper is opened to make the deodorizing air duct and the refrigeration air duct communicate. The refrigeration fan is opened to drive the gas in the deodorizing air duct to flow, so that the gas in the refrigeration chamber can pass through the deodorizing functional module in the deodorizing air duct, and the refrigeration air duct can deliver cold air to the refrigeration chamber, thereby solving the problem that deodorization of the refrigerator affects the refrigeration function of the refrigerator. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0040] Figure 1 The schematic diagram of the odor-free refrigerator structure provided in the embodiments of the present application is shown in the figure.

[0041] Figure 2 The flow chart of the odor-free refrigerator control method provided in the embodiments of the present application is shown in the figure.

[0042] Figure 3 The flow chart of the odor-free refrigerator control method according to the refrigeration mode provided in the embodiments of the present application is shown in the figure.

[0043] Reference signs:

[0044] Among them, 1-odor-free air duct; 2-refrigeration air duct; 3-electric air door; 4-odor-free air outlet; 5-odor-free air return; 6-circulating fan; 7-odor-free function module; 8-gas sensor; 9-controller; 10-refrigeration air inlet; 11-refrigeration air outlet; 12-refrigeration fan; 13-temperature sensor. DETAILED DESCRIPTION

[0045] The embodiments will be described in detail below, and examples are shown in the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following embodiments do not represent all the embodiments consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as described in detail in the claims.

[0046] With the development of healthy refrigerators, the odor-free function has become the focus of refrigerator research. Among them, the odor-free function in the refrigerator mainly includes large specific surface area adsorption module, catalyst odor-free, photocatalysis, oxidative decomposition and other ways.

[0047] Among them, the catalyst odor-free is mainly made by taking large specific surface area activated carbon or ceramic honeycomb as the substrate and taking metal catalyst as the main functional component, and is made by one-piece molding or attachment after molding. In the refrigerator, it is usually arranged in the refrigeration air duct or applied by integrated module. When it is arranged in the refrigeration air duct, there are two cases, the first is arranged in the air duct side wall, which will cause low contact efficiency of odor components and integrated module, resulting in poor odor-free effect. The second is arranged in the air duct flow channel, which will cause large air resistance due to the honeycomb holes, affecting the refrigeration of the refrigerator.

[0048] In order to solve the problem that the odor-free function of the refrigerator affects the refrigeration function of the refrigerator. Referring to Figure 1, Figure 1 A schematic diagram of a net taste refrigerator structure provided for some embodiments of the present application includes: a refrigeration chamber, a net taste air duct 1 and a refrigeration air duct 2; the refrigeration chamber is connected with the net taste air duct 1 through a net taste air outlet 4 and a net taste air return 5; the refrigeration chamber is connected with the refrigeration air duct 2 through a refrigeration air outlet 10 and a refrigeration air outlet 11; the refrigeration air duct 2 is connected with the net taste air duct 1 through an electric air door 3; the refrigeration air duct 2 is provided with a refrigeration air fan 12; the net taste air duct 1 is provided with a circulating air fan 6 and a net taste function module 7; the refrigeration chamber is provided with a gas sensor 8; the refrigeration air fan 12, the circulating air fan 6, the electric air door 3 and the gas sensor 8 are respectively connected with a controller 9.

[0049] The controller 9 is configured to: acquire a gas concentration detected by the gas sensor 8; if the concentration is greater than a first preset concentration, send a first operation instruction to control the electric air door 3 to open and the circulating air fan 6 to close; if the gas concentration is less than the first preset concentration, send a second operation instruction to control the electric air door 3 to close.

[0050] The refrigeration air duct 2 is connected with the refrigeration chamber through the refrigeration air outlet 10 and the refrigeration air outlet 11, when the refrigeration air fan 12 is started, the cold air in the refrigeration air duct 2 is driven to flow, and then the cold air is blown into the refrigeration chamber through the refrigeration air outlet 10, and the cold air is sent into the refrigeration air duct through the refrigeration air outlet 11, so as to realize air exchange in the refrigeration chamber.

[0051] The net taste air duct 1 is connected with the refrigeration chamber through the net taste air return 5 and the net taste air outlet 4, the net taste air duct 1 is provided with the circulating air fan 6 and the net taste function module 7, the gas sensor 8 is arranged in the refrigeration chamber to detect the gas concentration of the gas in the refrigeration chamber, when the air in the refrigeration chamber needs to be purified, the electric air door 3 can be opened, so that the gas can pass through the net taste function module 7 in the net taste air duct 1, and the effect of purifying the air in the refrigeration chamber is realized.

[0052] Specifically, when the controller 9 receives the gas concentration detected by the gas sensor 8 and the gas concentration 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 the circulating air fan 6 to close, so that part of the air enters the net taste air duct 1 through the electric air door 3, and then enters the refrigeration chamber through the net taste air outlet 4 through the net taste function module 7, so that the air purified by the net taste enters the refrigeration chamber.

[0053] When the gas concentration in the refrigeration chamber is less than the first preset concentration, it means that the odor in the refrigeration chamber is successfully eliminated, then the electric air door 3 can be controlled to close by the controller 9, the cold air enters the refrigeration chamber through the refrigeration air duct 2, and the refrigerator is normally refrigerated.

[0054] By arranging the net taste air duct 1, the net taste function of the refrigerator is realized, and the influence of the net taste function module 7 on the refrigeration performance of the refrigerator is reduced.

[0055] Meanwhile, during the deodorization process of the refrigerator, the state of the refrigerator needs to be determined, and in some embodiments, the deodorization refrigerator further comprises a temperature sensor 13 arranged in the refrigerating chamber, and the temperature sensor 13 is connected with the controller 9.

[0056] The controller 9 is further configured to:

[0057] obtain the temperature of the refrigerating chamber detected by the temperature sensor 13.

[0058] obtain the operation mode of the refrigerating chamber according to the temperature of the refrigerating chamber, wherein the operation mode of the refrigerating chamber comprises a refrigeration mode and a non-refrigeration mode;

[0059] if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in the refrigeration mode, send a first operation instruction.

[0060] if the gas concentration is greater than the second preset concentration and the refrigerating chamber is in the non-refrigeration mode, send a third operation instruction to control the electric damper 3 to be closed and the circulating fan 6 to be opened.

[0061] The temperature sensor 13 is mainly used to obtain the temperature in the refrigerating chamber, and according to the temperature in the refrigerating chamber, the operation mode of the refrigerating chamber can be determined. For example, when the temperature of the refrigerating chamber detected by the temperature sensor 13 is less than or equal to a preset refrigeration temperature, it indicates that the refrigerating chamber is in the refrigeration mode, and when the temperature of the refrigerating chamber is greater than the preset refrigeration temperature, it indicates that the refrigerating chamber is in the non-refrigeration mode.

[0062] When the gas concentration detected by the controller 9 is greater than the second preset concentration and the refrigerating chamber is in the refrigeration mode, a first instruction can be sent to realize the deodorization function.

[0063] When the gas concentration detected by the controller 9 is greater than the second preset concentration and the refrigerating chamber is in the non-refrigeration mode, since the refrigeration fan 12 is closed in the non-refrigeration mode, the circulating fan 6 needs to be opened and the electric damper 3 needs to be closed by the controller 9, so that the air in the refrigerating chamber is driven to flow by the circulating fan 6, and then the air flows through the deodorization functional module 7 to realize deodorization.

[0064] When the gas concentration in the refrigerating chamber is less than the first preset concentration, the deodorization is completed, and the circulating fan 6 can be closed. Through the circulating fan 6, the deodorization function of the refrigerating chamber in the non-refrigeration mode is realized.

[0065] In some embodiments, the second preset concentration is greater than the first preset concentration. It can be understood that when the refrigeration compartment is in the non-refrigeration mode, the air flow speed in the refrigeration compartment is slow, and therefore the odor concentration in the refrigeration compartment is large. Therefore, when the gas concentration is greater than the second preset concentration, it is necessary to determine the operation mode of the refrigeration compartment, and when the gas concentration is greater than the first preset concentration, the operation mode of the refrigeration compartment can also be determined by the temperature sensor 13, and in the non-refrigeration mode, the electric damper 3 needs to be closed and the circulating fan 6 needs to be started, and the air flow in the refrigeration compartment is realized by the circulating fan 6, and then the air flows through the odor removal functional module 7 to realize odor removal.

[0066] In some embodiments, the odor removal functional module 7 is one or more of a catalyst module, a photocatalyst module, an ion generator module, an ozone generator module, and a physical adsorption module.

[0067] The catalyst module can decompose odor molecules into harmless substances through a catalytic reaction, thereby achieving odor removal effect. The catalyst module is usually composed of a catalyst material and a carrier, the catalyst material can effectively decompose odor molecules, and the carrier can provide a larger contact area for the catalyst, thereby improving the odor removal efficiency.

[0068] The photocatalyst module decomposes odor molecules into harmless substances under the action of light. The photocatalyst module is usually composed of a photocatalyst and a light source, the photocatalyst can absorb light of a specific wavelength, and use light energy to decompose odor molecules into harmless substances.

[0069] The ion generator module generates negative oxygen ions or positive oxygen ions through an ion generator, and the negative oxygen ions and the positive oxygen ions can combine with odor molecules, thereby reducing the concentration of odor molecules.

[0070] The ozone generator module can eliminate odor by generating ozone. Ozone is a strong oxidizing agent that can undergo redox reaction with odor molecules, thereby reducing the concentration of odor molecules.

[0071] The physical adsorption module can adsorb odor molecules on the adsorbent material through adsorption, thereby reducing the concentration of odor molecules. The physical adsorption module is usually composed of an adsorbent material and a carrier, the adsorbent material can effectively adsorb odor molecules, and the carrier can provide a larger contact area for the adsorbent material, thereby improving the odor removal efficiency.

[0072] The odor removal functional module 7 can achieve odor removal effect through different ways, including but not limited to catalyst module, photocatalyst module, ion generator module, ozone generator module and physical adsorption module, which can be used alone or in combination to provide more comprehensive and efficient odor removal performance.

[0073] In some embodiments, the odor removal function module 7 is provided with a honeycomb structure, and the extension direction of the honeycomb structure is horizontal to the airflow direction in the odor removal air duct 1. By providing the honeycomb structure in the odor removal function module 7, on the one hand, the contact area of the air with the odor removal function module 7 can be increased, so as to improve the purification efficiency. At the same time, by setting the extension direction of the honeycomb structure to be horizontal to the airflow direction in the odor removal air duct 1, the air can pass through the honeycomb structure more uniformly, reducing the air resistance and noise.

[0074] In some embodiments, the odor removal air duct 1 is in a V-shaped structure, and the electric damper 3 is arranged at the bending position of the odor removal air duct 1. The design of the odor removal air duct 1 adopts a V-shaped structure, which helps to improve the air circulation efficiency and reduce the noise.

[0075] In some embodiments, the cross-sectional area of the odor removal air outlet 4 is smaller than that of the odor removal air return inlet 5. By setting the cross-sectional area of the odor removal air outlet 4 to be smaller than that of the odor removal air return inlet 5, the flow rate of the air entering the refrigeration chamber can be increased, which can drive the air in the refrigeration chamber to flow. The larger cross-sectional area of the odor removal air return inlet 5 can make the air in the refrigeration chamber flow out of the refrigeration chamber quickly, so as to realize odor removal through the odor removal function mode and improve the odor removal efficiency.

[0076] In some embodiments, as shown in FIG. 1, Figure 2 The odor removal refrigerator control method provided by some embodiments of the present application is applied to the odor removal refrigerator provided by the above embodiments, and includes the following steps.

[0077] S100: Obtain the gas concentration detected by the gas sensor 8.

[0078] S200: If the gas concentration is greater than the first preset concentration, send a first operation instruction to control the electric damper 3 to open and the circulating fan 6 to close.

[0079] S300: If the gas concentration is less than the first preset concentration, send a second operation instruction to control the electric damper 3 to close.

[0080] In some embodiments, as shown in FIG. 1, Figure 3 The odor removal refrigerator control method further includes the following steps.

[0081] S400: Obtain the refrigeration chamber temperature detected by the temperature sensor 13.

[0082] S500: Obtain the refrigeration chamber operation mode according to the refrigeration chamber temperature.

[0083] The refrigeration chamber operation mode includes a refrigeration mode and a non-refrigeration mode.

[0084] S600: If the gas concentration is greater than the second preset concentration and the refrigeration chamber is in the refrigeration mode, send the first operation instruction.

[0085] S700: If the gas concentration is greater than the second preset concentration and the refrigeration chamber is in the non-refrigeration mode, a third operation instruction is sent to control the electric damper 3 to be closed and the circulating fan 6 to be turned on.

[0086] From the above technical solutions, the present application provides a clean taste refrigerator and a control method. The clean taste refrigerator comprises a refrigeration chamber, a clean taste air duct 1 and a refrigeration air duct 2. The refrigeration chamber is connected with the clean taste air duct 1 through a clean taste air outlet 4 and a clean taste air return 5. The refrigeration chamber is connected with the refrigeration air duct 2 through a refrigeration air outlet 10 and a refrigeration air outlet 11. The refrigeration air duct 2 is connected with the clean taste air duct 1 through an electric damper 3. A refrigeration fan 12 is arranged in the refrigeration air duct 2. A circulating fan 6 and a clean taste function module 7 are arranged in the clean taste air duct 1. A gas sensor 8 is arranged in the refrigeration chamber. The refrigeration fan 12, the circulating fan 6, the electric damper 3 and the gas sensor 8 are respectively connected with a controller 9. The controller 9 is configured to: acquire a gas concentration detected by the gas sensor 8; if the gas concentration is greater than a first preset concentration, send a first operation instruction to control the electric damper 3 to be turned on and the circulating fan 6 to be turned off; and if the gas concentration is less than the first preset concentration, send a second operation instruction to control the electric damper 3 to be turned off. When clean taste is needed, the electric damper 3 is turned on to make the clean taste air duct 1 and the refrigeration air duct 2 communicate, and the refrigeration fan 12 is turned on to drive the gas in the clean taste air duct 1 to flow, so that the gas in the refrigeration chamber can pass through the clean taste function module 7 in the clean taste air duct 1, and the refrigeration air duct 2 can supply cold air to the refrigeration chamber, thereby solving the problem that clean taste of the refrigerator affects the refrigeration function of the refrigerator.

[0087] The similar parts among the embodiments provided by the present application can be referred to each other, and the specific embodiments provided above are only several examples under the general concept of the present application, and do not limit the protection scope of the present application. Any other embodiments extended according to the present application scheme without creative labor are within the protection scope of the present application.

Claims

1. A deodorizing refrigerator, characterized in that, The application relates to a deodorizing refrigerator, which comprises the following parts: a refrigeration chamber, a deodorizing air duct (1) and a refrigeration air duct (2); the refrigeration chamber is connected with the deodorizing air duct (1) through a deodorizing air outlet (4) and a deodorizing air return (5); the refrigeration chamber is connected with the refrigeration air duct (2) through a refrigeration air inlet (10) and a refrigeration air outlet (11); the refrigeration air duct (2) is connected with the deodorizing air duct (1) through an electric air door (3); a refrigeration air fan (12) is arranged in the refrigeration air duct (2); a circulating air fan (6) and a deodorizing function module (7) are arranged in the deodorizing air duct (1); a gas sensor (8) is arranged in the refrigeration chamber; the refrigeration air fan (12), the circulating air 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: acquire the gas concentration detected by the gas sensor (8); if the gas concentration is greater than a first preset concentration, a first operation instruction is sent to control the electric air door (3) to open and the circulating air fan (6) to close; if the gas concentration is less than the first preset concentration, a second operation instruction is sent to control the electric air door (3) to close.

2. The taste-free refrigerator according to claim 1, characterized in that, a temperature sensor (13) is further arranged in the refrigeration chamber, and the temperature sensor (13) is connected with the controller (9); the controller (9) is further configured to: acquire the refrigeration chamber temperature detected by the temperature sensor (13); acquire a refrigeration chamber operation mode according to the refrigeration chamber temperature, wherein the refrigeration chamber operation mode comprises a refrigeration mode and a non-refrigeration mode; if the gas concentration is greater than a second preset concentration and the refrigeration chamber is in the refrigeration mode, the first operation instruction is sent; if the gas concentration is greater than the second preset concentration and the refrigeration chamber is in the non-refrigeration mode, a third operation instruction is sent to control the electric air door (3) to close and the circulating air fan (6) to open.

3. The taste-free refrigerator according to claim 2, characterized in that, The second preset concentration is greater than the first preset concentration.

4. The taste-free refrigerator according to claim 1, characterized in that, The deodorizing function module (7) is one or more of a catalyst module, a photocatalyst module, an ion generator module, an ozone generator module and a physical adsorption module.

5. The taste-free refrigerator according to claim 1, characterized in that, The deodorizing function module (7) is provided with a honeycomb structure, and the extension direction of the honeycomb structure is horizontal to the airflow flowing direction in the deodorizing air duct (1).

6. The taste-free refrigerator according to claim 1, characterized in that, The deodorizing air duct (1) is of a V-shaped structure, and the electric air door (3) is arranged at the bending position of the deodorizing air duct (1).

7. The taste-free refrigerator according to claim 1, characterized in that, The cross-sectional area of the deodorizing air outlet (4) is smaller than that of the deodorizing air return (5).

8. A method of controlling a deodorizing refrigerator, characterized by, The application is applied to the deodorizing refrigerator in any one of claims 1-7, and comprises the following parts: acquire the gas concentration detected by the gas sensor (8); if the gas concentration is greater than a first preset concentration, a first operation instruction is sent to control the electric air door (3) to open and the circulating air fan (6) to close; if the gas concentration is less than the first preset concentration, a second operation instruction is sent to control the electric air door (3) to close.

9. The taste-free refrigerator control method of claim 8, wherein, further comprising: acquire the refrigeration chamber temperature detected by the temperature sensor (13); According to the refrigerating chamber temperature, a refrigerating chamber operation mode is obtained, the refrigerating chamber operation mode including a refrigeration mode and a non-refrigeration mode; If the gas concentration is greater than the second preset concentration and the refrigerating chamber is in the refrigeration mode, a first operation instruction is sent; If the gas concentration is greater than the second preset concentration and the refrigerating chamber is in the non-refrigeration mode, a third operation instruction is sent to control the electric damper (3) to be closed and the circulating fan (6) to be opened.

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