Odor detection module and food refrigeration device

Abstract

The application discloses a smell detection module and a food refrigeration device, and relates to the technical field of smell detection modules, and specifically discloses the smell detection module, which comprises a shell, an air cavity formed in the shell, a gas-permeable hole in the shell and communicating with the air cavity, a gas-permeable film arranged on the inner wall of the air cavity and covering the gas-permeable hole, a control board arranged in the air cavity and provided with a detection chip, and a fixing member arranged between the gas-permeable film and the control board, wherein the fixing member, the gas-permeable film and the control board jointly define a reaction cavity, the reaction cavity is communicated with the gas-permeable hole, and the detection chip is arranged in the reaction cavity. The fixing member arranged between the gas-permeable film and the control board can jointly define a reaction cavity with a small volume, the distance of smell to the detection chip is reduced, and the sensing and recovery speed of the smell detection module in actual application is improved.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to an odor detection module and a food refrigeration device. Background Technology

[0002] As a key appliance for storing food in the home, refrigerators are seeing an increasing number of products with health-related features entering the market. A crucial aspect of assessing the environmental quality of refrigerators is the detection and evaluation of odor quality within the environment. Odor sensors are increasingly being used in refrigerator products as the primary detection medium. However, the refrigerator environment is characterized by low temperature and high humidity, and current odor sensors suffer from poor reliability and slow odor detection and recovery speeds. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an odor detection module that can define a small-volume reaction chamber, thereby improving the sensing and recovery speed of the odor detection module in practical applications.

[0004] The present invention also aims to provide a food refrigeration device that applies the above-mentioned odor detection module.

[0005] An odor detection module according to an embodiment of the present invention includes: a housing having a cavity formed inside, and a vent hole communicating with the cavity on the housing; a breathable membrane disposed on the inner wall of the cavity and covering the vent hole; a control board disposed within the cavity, and a detection chip disposed on the control board; and a fixing member disposed between the breathable membrane and the control board, wherein the fixing member, the breathable membrane, and the control board together define a reaction chamber communicating with the vent hole, and the detection chip is located within the reaction chamber.

[0006] According to the odor detection module of the present invention, by means of a fixing member disposed between the breathable membrane and the control plate, the three can jointly define a reaction chamber with a smaller volume, thereby reducing the distance between the odor and the detection chip and improving the sensing and recovery speed of the odor detection module in practical applications.

[0007] In some embodiments of the present invention, the height of the reaction chamber is T, wherein 1.5 mm ≤ T ≤ 2.0 mm.

[0008] In some embodiments of the present invention, the fixing member is constructed as a plate, the fixing member is provided with a through hole, the axial length of the through hole is the height of the reaction chamber, and one end of the fixing member located at the two ends in the axial direction of the through hole abuts against the control plate, and the other end abuts against the breathable membrane.

[0009] In some embodiments of the present invention, the through hole includes a first hole portion and a second hole portion that are interconnected, the cross-section of the first hole portion is smaller than the cross-section of the second hole portion, the first hole portion is arranged adjacent to the breathable membrane, and the second hole portion is arranged adjacent to the detection chip.

[0010] In some embodiments of the present invention, the first hole is constructed as a circular hole, and the diameter of the first hole is R, wherein 3.0 mm ≤ R ≤ 5.0 mm.

[0011] In some embodiments of the present invention, the second hole is constructed as a square hole, the length of the second hole is L, and the width is D, wherein 8.0mm≤L≤15.0mm and 8.0mm≤D≤15.0mm.

[0012] In some embodiments of the present invention, the inner wall of the cavity is provided with an annular protrusion arranged around the vent hole, and the vent membrane and the fixing member are disposed within the annular protrusion.

[0013] In some embodiments of the present invention, the odor detection module further includes an indicator light, which is arranged adjacent to the detection chip and located within the reaction chamber.

[0014] In some embodiments of the present invention, the housing includes: an outer shell, the outer shell having a receiving groove and a straight end face, and the vent hole being disposed on the straight end face; and an adhesive base, the adhesive base being disposed on the control plate, the adhesive base being sealed on the outer shell after curing, and together with the outer shell defining the cavity.

[0015] In some embodiments of the present invention, a buckle is provided in the receiving groove, and the buckle abuts against the control plate so that the control plate, the fixing member and the breathable membrane are kept abutting against each other.

[0016] The food refrigeration device according to an embodiment of the present invention includes the odor detection module described above.

[0017] According to the food refrigeration equipment of the present invention, the odor detection module has a relatively sensitive sensing and recovery speed in practical applications, and can detect the odor of food stored inside the equipment in a timely and accurate manner.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1This is an exploded view of the odor detection module in an embodiment of the present invention; Figure 2 This is a top view of the odor detection module in an embodiment of the present invention; Figure 3 yes Figure 2 A schematic diagram showing the section cut along line AA; Figure 4 yes Figure 3 Enlarged view of section IV; Figure 5 This is a diagram showing the response results of the odor detection module during operation in an embodiment of the present invention; Figure 6 This is a simplified structural diagram of the food refrigeration equipment in an embodiment of the present invention.

[0020] Figure label: 100. Odor detection module; 10. Shell; 10a. Cavity; 10b. Vent hole; 10c. Annular protrusion; 110. Outer shell; 110a. Receiving groove; 110b. Flat end face; 110c. Snap-fit; 110d. Mounting groove; 120. Adhesive-backed base; 20. Breathable membrane; 30. Control board; 301. Detection chip; 40. Fastener; 401. Through hole; 4011. First hole; 4012. Second hole; 50. Indicator light; 60. Wiring harness; 70. Terminal; 1000, Food refrigeration equipment; 200, Housing; 200a, Food processing chamber. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0024] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following is for reference. Figures 1-5 The odor detection module 100 according to an embodiment of the present invention is described.

[0027] like Figure 1 As shown, the odor detection module 100 according to an embodiment of the present invention includes: a housing 10, a breathable membrane 20, a control plate 30, and a fixing member 40.

[0028] The housing 10 has a cavity 10a inside, and a vent 10b communicating with the cavity 10a is provided on the housing 10. A breathable membrane 20 is provided on the inner wall of the cavity 10a and covers the vent 10b. A control board 30 is provided in the cavity 10a, and a detection chip 301 is provided on the control board 30. A fixing member 40 is provided between the breathable membrane 20 and the control board 30. The fixing member 40, the breathable membrane 20 and the control board 30 together define a reaction chamber, which communicates with the vent 10b. The detection chip 301 is located in the reaction chamber.

[0029] When the odor detection module 100 is working, gas enters through the vent 10b. The breathable membrane 20 is waterproof and breathable, reducing the amount of moisture entering the cavity 10a, minimizing its impact on detection accuracy, and reducing fluctuations in detection values. It also prevents dust, oil, and insects from entering the cavity 10a, improving detection accuracy and extending service life. After passing through the breathable membrane 20, the gas enters the reaction chamber. The detection chip 301, which may refer to a sensor chip, senses the odor and converts the odor concentration value into changes in current, voltage, or resistance, outputting this information to the control board 30, which may refer to a PCB board. The control board processes and organizes the data before sending it to an external control host to output the environmental concentration value, thus achieving the purpose of odor detection.

[0030] It should be noted that the fastener 40 serves two purposes: firstly, it secures the breathable membrane 20 and the control plate 30, preventing them from falling off; secondly, the reaction chamber volume defined by the fastener 40, the breathable membrane 20, and the control plate 30 is relatively small, allowing the odor to diffuse to the detection chip 301 quickly and be more sensitive. At the same time, it also reduces the amount of air entering the reaction chamber, significantly improving the recovery speed.

[0031] Specifically, one end of the breathable membrane 20 adjacent to the vent 10b is provided with an adhesive backing (not shown in the figure), and the adhesive backing layer is arranged around the vent 10b to bond the breathable membrane 20 to the inner wall surface of the cavity 10a. The odor detection module 100 also includes other components, such as a wiring harness 60 and a terminal 70, the terminal 70 being connected to the wiring harness 60, and the wiring harness 60 being connected to the control board 30.

[0032] According to the odor detection module 100 of the present invention, by means of the fixing member 40 disposed between the breathable membrane 20 and the control plate 30, the three can jointly define a reaction chamber with a smaller volume, reduce the distance of odor to the detection chip 301, and improve the sensing and recovery speed of the odor detection module 100 in practical applications.

[0033] In some embodiments of the present invention, the height of the reaction chamber is T, wherein 1.5 mm ≤ T ≤ 2.0 mm. The height of the reaction chamber can refer to the height of the reaction chamber within... Figure 4 The vertical dimension of the odor detection module 100 is designed to be within a certain range, making its sensing and recovery more sensitive. T can be any value from 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 1.7mm, and 2.0mm. This is just an example; T can also be other values ​​within the range of 1.5 to 2.0mm, which will not be elaborated further here.

[0034] In some embodiments of the present invention, such as Figure 1 , Figure 3 , Figure 4As shown, the fixing member 40 is constructed as a plate, that is, the fixing member 40 is a thin plate, which is beneficial to reducing the height of the reaction chamber. The fixing member 40 is provided with a through hole 401, the axial length of the through hole 401 is the height of the reaction chamber, and the fixing member 40 is located at one end of the two ends in the axial direction of the through hole 401, one end abutting against the control plate 30, and the other end abutting against the breathable membrane 20. The control plate 30 and the breathable membrane 20 are fitted at both ends of the through hole 401, thereby jointly defining the reaction chamber.

[0035] In some embodiments of the present invention, such as Figure 4 As shown, the through-hole 401 includes a first hole portion 4011 and a second hole portion 4012 that are interconnected. The cross-section of the first hole portion 4011 is smaller than the cross-section of the second hole portion 4012. The first hole portion 4011 is arranged adjacent to the breathable membrane 20, and the second hole portion 4012 is arranged adjacent to the detection chip 301. When an odor enters, it first enters the first hole portion 4011 with the smaller cross-section, and then enters the second hole portion 4012 with the larger cross-section, allowing the gas to diffuse further and facilitating detection. When the gas flows out, it is in a low-speed steady flow. According to the properties of streamlines, the narrower the flow tube, the faster the fluid velocity, and vice versa. Therefore, when the gas flows from the second hole portion 4012 to the first hole portion 4011, the gas outflow speed is faster, and the module's recovery capability is stronger.

[0036] In some embodiments of the present invention, the first hole 4011 is constructed as a circular hole, and the diameter of the first hole 4011 is R, wherein 3.0 mm ≤ R ≤ 5.0 mm. The value of R can be any value among 3.0 mm, 3.2 mm, 3.4 mm, 3.6 mm, 3.8 mm, 3.9 mm, 4.1 mm, 4.5 mm, 4.7 mm, and 5.0 mm. Of course, this is just an example, and R can also be other values ​​in the range of 3.0 to 5.0 mm, which will not be elaborated here.

[0037] In some embodiments of the present invention, the second hole 4012 is constructed as a square hole, with a length L and a width D, wherein 8.0mm ≤ L ≤ 15.0mm and 8.0mm ≤ D ≤ 15.0mm. The value of L can be any value among 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, and 15mm, and the value of D can be any value among 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, and 15mm. Of course, this is merely an example; L and D can also be other values ​​within the range of 8.0 to 15.0mm, which will not be elaborated further here. As can be seen from the above, L and D can be equal, in which case the second hole 4012 is a square hole; or, L and D are not equal, in which case the second hole 4012 is a rectangular hole.

[0038] It should be noted that when the length L and width D of the second hole 4012 satisfy 8.0mm≤L≤15.0mm and 8.0mm≤D≤15.0mm, the diameter R of the first hole 4011 satisfies 3.0mm≤R≤5.0mm, and the height range of the first hole 4011 and the second hole 4012 is 1.5mm~2.0mm, the volume of the reaction chamber can ensure a significant improvement in the module's sensing and recovery sensitivity. (Reference) Figure 5 The response results of the odor detection module are shown in the graph. The horizontal axis represents time (s), and the vertical axis represents the grade value. The grade value can be understood as converting the change in odor concentration into a voltage value, which is then used to characterize the odor condition. Curve a represents the response effect curve of odor sensors in related technologies, and curve b represents the response effect curve of the odor detection module 100 of this invention. Figure 5 It is known that the recovery speed of odor sensors in related technologies is 400s, while the recovery speed of the odor detection module 100 of the present invention is 100s, and the recovery efficiency can be improved by 75%.

[0039] In some embodiments of the present invention, such as Figure 4 As shown, the inner wall of the cavity 10a is provided with an annular protrusion 10c arranged around the vent hole 10b. The breathable membrane 20 and the fixing member 40 are disposed within the annular protrusion 10c. The annular protrusion 10c can limit the fixing member 40, prevent the fixing member 40 from loosening, ensure the fixing effect of the breathable membrane 20, and prevent the breathable membrane 20 from falling off.

[0040] In some embodiments of the present invention, the thickness of the fastener 40 and the protrusion height of the annular protrusion 10c are equal.

[0041] In some embodiments of the present invention, the fastener 40 and the annular protrusion 10c are interference fit, which makes the connection between the two more reliable and the fixing effect better.

[0042] In some embodiments of the present invention, such as Figure 1 As shown, the odor detection module 100 also includes an indicator light 50, which is arranged adjacent to the detection chip 301 and located within the reaction chamber. The light emitted by the indicator light 50 can pass through the breathable membrane 20 and the vent 10b, enabling interaction between the module and the user. For example, the odor detection module 100 can be used in a refrigerator; the indicator light 50 illuminates when the refrigerator is opened, increasing interaction with the user; when the refrigerator is closed, the indicator light 50 turns off, saving power. Specifically, the indicator light 50 can be an LED.

[0043] In some embodiments of the present invention, such as Figure 1 , Figure 4As shown, the housing 10 includes an outer shell 110 and an adhesive base 120. The outer shell 110 has a receiving groove 110a and a straight end face 110b, and a vent 10b is provided on the straight end face 110b. The adhesive base 120 is provided on the control plate 30. After curing, the adhesive base 120 is sealed on the outer shell 110 and together with the outer shell 110 defines the cavity 10a. By configuring the housing 10 to include an outer shell 110 and an adhesive base 120, and having the adhesive base 120 directly sealed on the outer shell 110 after curing, the use of a base can be reduced, thus lowering costs. The flat end face 110b can refer to the upper end face of the housing 110, which is set as a flat surface and a vent 10b is opened on it. Since the vent 10b does not adopt a protruding design, the overall volume of the module can be reduced. At the same time, this design is also conducive to reducing the volume of the reaction chamber, reducing the distance that the odor is transmitted to the detection chip 301, and further improving the sensing and recovery speed of the odor detection module 100 in practical applications.

[0044] In some embodiments of the present invention, the outer shell 110 is made of any one of the following materials with low odor levels: ABS, PP, and HIPS.

[0045] In some embodiments of the present invention, such as Figure 1 As shown, the housing 110 is provided with a mounting groove 110d, and one end of the wire harness 60 is provided on the mounting groove 110d to connect to the control board 30.

[0046] In some embodiments of the present invention, such as Figure 4 As shown, a latch 110c is provided in the receiving groove 110a. The latch 110c abuts against the control plate 30 to keep the control plate 30, the fixing member 40, and the breathable membrane 20 in abutting position. The latch 110c can limit the position of the control plate 30, ensuring that the control plate 30 is not easy to fall off, increasing reliability, and reducing the risk of warping and deformation of the control plate 30 during the back potting process. At the same time, it can also reduce the vertical displacement of the control plate 30, improve the sealing performance of the cavity 10a, and thus ensure the consistency of performance.

[0047] In some embodiments of the present invention, the breathable membrane 20 may be made of PTFE material.

[0048] In some embodiments of the present invention, such as Figure 1 As shown, multiple vent holes 10b are provided. By providing multiple vent holes 10b, the air intake volume and air intake speed can be increased. Specifically, there can be five vent holes 10b, one of which is a circular hole, and the other four are arc-shaped holes arranged around the circular hole.

[0049] A specific embodiment of the odor detection module 100 of the present invention will now be described with reference to the accompanying drawings.

[0050] like Figures 1 to 5 As shown, the odor detection module 100 includes: a housing 10, a breathable membrane 20, a control board 30, a fixing piece 40, an indicator light 50, a wiring harness 60, and a terminal 70.

[0051] The housing 10 has a cavity 10a inside, and the housing 10 has a vent hole 10b that communicates with the cavity 10a.

[0052] The breathable membrane 20 is disposed on the inner wall of the cavity 10a and covers the vent holes 10b.

[0053] The control board 30 is located inside the cavity 10a, and the control board 30 is equipped with a detection chip 301.

[0054] The fixing member 40 is located between the breathable membrane 20 and the control plate 30, and the fixing member 40, the breathable membrane 20, and the control plate 30 together define a reaction chamber. The reaction chamber is connected to the vent 10b, and the detection chip 301 is located inside the reaction chamber. The height of the reaction chamber is T, and T is 2.0 mm.

[0055] The fastener 40 is constructed as a thin plate and has a through hole 401. The axial length of the through hole 401 is the height of the reaction chamber. The fastener 40 is located at one end in the axial direction of the through hole 401, with one end abutting against the control plate 30 and the other end abutting against the breathable membrane 20.

[0056] The through hole 401 includes a first hole portion 4011 and a second hole portion 4012 that are interconnected. The cross-section of the first hole portion 4011 is smaller than the cross-section of the second hole portion 4012. The first hole portion 4011 is arranged adjacent to the breathable membrane 20, and the second hole portion 4012 is arranged adjacent to the detection chip 301.

[0057] The first hole 4011 is constructed as a circular hole, and the diameter of the first hole 4011 is R, where R is 4.0 mm.

[0058] The second hole 4012 is a square hole with a length of L and a width of D, where L is 11 mm and D is 11 mm.

[0059] The inner wall of cavity 10a is provided with an annular protrusion 10c arranged around the vent hole 10b, and the vent membrane 20 and the fixing member 40 are located in the annular protrusion 10c.

[0060] Indicator light 50 is arranged near detection chip 301. Indicator light 50 is an LED and is located inside the reaction chamber.

[0061] The housing 10 includes an outer shell 110 and an adhesive base 120. The outer shell 110 is provided with a receiving groove 110a and a straight end face 110b, and a vent hole 10b is provided on the straight end face 110b. The adhesive base 120 is provided on the control plate 30. After the adhesive base 120 is cured, it is sealed on the outer shell 110 and together with the outer shell 110 defines the cavity 10a.

[0062] The receiving groove 110a is provided with a buckle 110c, which abuts against the control plate 30 so that the control plate 30, the fixing member 40 and the breathable membrane 20 are kept abutting.

[0063] like Figure 6 As shown, the food refrigeration device 1000 according to an embodiment of the present invention includes the aforementioned odor detection module 100.

[0064] The food refrigeration equipment 1000 includes a housing 200, inside which a food processing chamber 200a is formed. An odor detection module 100 is located within the food processing chamber 200a. By detecting the odor within the food processing chamber 200a in real time, a freshness index is provided, and the overall environment within the food processing chamber 200a is evaluated. The food processing chamber 200a can be divided into multiple different compartments. For example, one compartment can be used to store fruits, vegetables, or seafood. By detecting the odor within this compartment and providing a freshness index, it is possible to determine whether spoiled food is placed within the food processing chamber 200a and to monitor the food spoilage process over a long period.

[0065] Specifically, food refrigeration equipment 1000 can refer to a refrigerator or freezer.

[0066] According to the food refrigeration equipment 1000 of the present invention, the odor detection module 100 has a relatively sensitive sensing and recovery speed in practical applications, and can detect the odor of the food stored inside the equipment in a timely and accurate manner.

[0067] Other configurations and operations of the food refrigeration device 1000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0068] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An odor detection module, characterized in that, include: A housing, wherein a cavity is formed inside the housing, and a vent hole is provided on the housing to communicate with the cavity; A breathable membrane is disposed on the inner wall of the cavity and covers the air vents; A control board is disposed inside the cavity, and a detection chip is provided on the control board; A fixing member is disposed between the breathable membrane and the control plate. The fixing member, the breathable membrane, and the control plate together define a reaction chamber. The reaction chamber is connected to the vent hole, and the detection chip is located inside the reaction chamber. The fastener is constructed as a plate with a through hole. The axial length of the through hole is the height of the reaction chamber. One end of the fastener abuts against the control plate, and the other end abuts against the breathable membrane. The through hole includes a first hole portion and a second hole portion that are interconnected. The cross-section of the first hole portion is smaller than the cross-section of the second hole portion. The first hole portion is arranged adjacent to the breathable membrane, and the second hole portion is arranged adjacent to the detection chip.

2. The odor detection module according to claim 1, characterized in that, The height of the reaction chamber is T, where 1.5mm ≤ T ≤ 2.0mm.

3. The odor detection module according to claim 2, characterized in that, The first hole is constructed as a circular hole, and the diameter of the first hole is R, wherein 3.0mm≤R≤5.0mm.

4. The odor detection module according to claim 2, characterized in that, The second hole is a square hole with a length of L and a width of D, wherein 8.0mm≤L≤15.0mm and 8.0mm≤D≤15.0mm.

5. The odor detection module according to claim 1, characterized in that, The inner wall of the cavity is provided with an annular protrusion arranged around the vent hole, and the vent membrane and the fixing member are disposed within the annular protrusion.

6. The odor detection module according to claim 1, characterized in that, It also includes an indicator light, which is arranged adjacent to the detection chip and located within the reaction chamber.

7. The odor detection module according to claim 1, characterized in that, The housing includes: The outer casing has a receiving groove and a flat end face, and the vent is provided on the flat end face; An adhesive-backed base is disposed on the control panel, and after curing, the adhesive-backed base is sealed on the outer shell and together with the outer shell defines the cavity.

8. The odor detection module according to claim 7, characterized in that, The receiving groove is provided with a buckle, which abuts against the control plate to keep the control plate, the fixing member and the breathable membrane abutting against each other.

9. A food refrigeration device, characterized in that, Includes the odor detection module according to any one of claims 1 to 8.

Images