Refrigerator with deoxygenation and freshness preservation function

Abstract

The present invention discloses a refrigerator with a deoxygenation and fresh-keeping function, comprising a box, a deoxygenation device, a tilt detection device and a first control valve. The box defines a storage chamber; the deoxygenation device is installed on the box and comprises an electrolyte and an air outlet, and the deoxygenation device transfers oxygen in the storage chamber to the outside of the refrigerator by means of the electrolyte and the air outlet and through an electrochemical reaction; the tilt detection device is used to detect whether the deoxygenation device is tilted; the first control valve is used to control the opening and closing of the air outlet, and the first control valve is configured to close the air outlet when the tilt detection device detects that the deoxygenation device is tilted. The refrigerator of the present invention effectively overcomes the problem of electrolyte overflow in the deoxygenation device when the refrigerator is tilted.

Description

Technical Field

[0001] The invention belongs to the field of refrigeration equipment, and specifically provides a refrigerator with a deoxygenation and freshness-preserving function. Background Art

[0002] A refrigerator is a refrigeration device that can refrigerate, freeze and preserve food. With the continuous improvement of people's living standards, refrigerators have entered thousands of households. In order to improve the preservation effect of refrigerators and with the development and progress of science and technology, some existing refrigerators also have deoxygenation and preservation functions.

[0003] Refrigerators with deoxygenation and fresh-keeping functions are usually equipped with a deoxygenation device, which transfers the oxygen in the refrigerator storage room to the outside of the refrigerator through the principle of electrochemical reaction to reduce the concentration of oxygen in the storage room, thereby reducing the activity of bacteria in the refrigerator, extending the shelf life of the food in the storage room, and improving the fresh-keeping effect of the refrigerator. Specifically, the deoxygenation device generally has an electrolyte and an air outlet. The cathode of the deoxygenation device contacts the air in the storage room so that the air in the storage room undergoes a reduction reaction with the electrolyte in the deoxygenation device: O2+2H2O+4e-→4OH-. The generated OH- undergoes an oxidation reaction at the anode of the deoxygenation device: 4OH-→O2+2H2O+4e-. The generated oxygen is discharged to the outside of the refrigerator through the air outlet, thereby realizing the deoxygenation function of the refrigerator.

[0004] Since refrigerators often tilt during transportation, handling, and assembly, the electrolyte in the deaerator may overflow from the air outlet on the top of the deaerator, causing pollution to the refrigerator, reducing its service life, and even affecting the health of the user. Summary of the invention

[0005] One object of the present invention is to solve the problem that the deoxygenation device of the existing refrigerator is prone to electrolyte overflow when the refrigerator is tilted.

[0006] To achieve the above object, the present invention provides a refrigerator with deoxygenation and freshness preservation function, comprising:

[0007] a box body defining a storage chamber;

[0008] a deoxygenation device, which is mounted on the box body and includes an electrolyte and an air outlet, and the deoxygenation device transfers oxygen in the storage chamber to the outside of the refrigerator by means of the electrolyte and the air outlet and through an electrochemical reaction;

[0009] A tilt detection device, used to detect whether the deoxygenation device is tilted;

[0010] The first control valve is used to control the opening and closing of the gas outlet. The first control valve is configured to close the gas outlet when the tilt detection device detects that the deoxygenation device is tilted.

[0011] Optionally, the tilt detection device comprises:

[0012] The shell has a first sink groove and a second sink groove on its bottom wall;

[0013] A moving body, which is located in the housing, wherein the tilt detection device in a normal state causes the moving body to be located in the first sink, and the tilt detection device in a tilted state causes the moving body to move into the second sink;

[0014] A first electrode and a second electrode, wherein the first electrode and the second electrode are both arranged on the shell, and the first electrode and the second electrode are electrically connected by the moving body in the first sink tank or the second sink tank.

[0015] Optionally, a plurality of the second sink grooves are arranged on the bottom wall, and the plurality of the second sink grooves are arranged at equal intervals around the first sink groove.

[0016] Optionally, the first electrode is configured as an annular conductive sheet fixed on a side wall of the shell; and / or, at least one second electrode is respectively disposed in each of the second sinks.

[0017] Optionally, the second electrode is located at the center of the second sink; and / or, the top of the second electrode is higher than the lowest point of the second sink.

[0018] Optionally, the top surface of the bottom wall gradually slopes downward from the second sink groove to the first sink groove to form a funnel-shaped surface; and the moving body is configured as a sphere.

[0019] Optionally, when the moving body is located in the first trough, the spherical surface of the moving body abuts against the edge of the first trough, thereby forming a plurality of abutment points; the tangent passing through the abutment point and tangent to the spherical surface of the moving body is recorded as the abutment tangent, and the angle between the abutment tangent and the vertical direction is recorded as the first angle φ; the inclination angle of the funnel-shaped surface is recorded as the second angle θ; the maximum inclination angle of the deoxygenation device is recorded as γ; so that φ+θ<γ.

[0020] Optionally, the tilt detection device is configured to move the moving body into the second sink when the tilt detection device has a tilt angle ≥ φ+θ.

[0021] Optionally, the deoxygenation device also includes a liquid replenishing port, and the refrigerator also includes a liquid replenishing device and a second control valve, the liquid replenishing device is connected to the liquid replenishing port, the second control valve is used to control the opening and closing of the liquid replenishing port, and the second control valve is configured to close the liquid replenishing port when the tilt detection device detects that the deoxygenation device is tilted.

[0022] Optionally, each pair of the second electrodes has a connection point, all the connection points are connected in series in sequence, and resistors are connected in series between two adjacent connection points; or, the tilt detection device includes a first lead and a second lead, the first lead is electrically connected to the first electrode, the second lead is electrically connected to each of the second electrodes, each second electrode is connected in series with at least one resistor, and the resistance value of each of the at least one resistor is different.

[0023] Based on the foregoing description, those skilled in the art will understand that, in the aforementioned technical solution of the present invention, the tilt detection device can detect whether the deoxygen device is tilted, and when the tilt detection device detects that the deoxygen device is tilted, the air outlet of the deoxygen device is closed by the first control valve, so that the refrigerator of the present invention effectively overcomes the problem of electrolyte overflow in its deoxygen device when the refrigerator is tilted.

[0024] Furthermore, by setting a first trough on the tilt detection device, setting a plurality of second troughs outside the first trough, and making the tilt detection device in a normal state make the moving body located in the first trough, and making the tilt detection device in a tilted state move the moving body into the second trough, and thus making the first electrode and the second electrode connected or disconnected, the present invention can detect the tilt of the refrigerator in any direction through the tilt detection device, so that the first control valve can close the air outlet on the deoxygenation device when the refrigerator is tilted in any direction.

[0025] Furthermore, by arranging a second electrode in each second sink, and electrically connecting the second lead to each second electrode, and connecting at least one resistor in series between each second electrode and the second lead, and making the resistance value of each at least one resistor different, when the moving body moves to different second sinks, the current flowing through the tilt detection device or the voltage on both sides of the tilt detection device are different. Therefore, the present invention can determine the tilt direction of the deoxygenator and / or the refrigerator, especially when the deoxygenator is installed tilted, and can promptly remind the installer to make adjustments.

[0026] Furthermore, by recording the angle between the contact tangent of the moving body and the first sink and the vertical direction as the first angle φ, recording the inclination angle of the funnel-shaped surface as the second angle θ, recording the maximum inclination angle of the deaerator as γ, and making φ+θ<γ, the moving body can move to the second sink in time when the inclination detection device is tilted; and the deaerator can store more electrolyte. In short, the inclination detection device of the present invention is not only sensitive, but also ensures the working performance of the deaerator.

[0027] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same reference numerals indicate the same or similar components or parts in different drawings; the drawings of the present invention are not necessarily drawn to scale.

[0029] In the attached figure:

[0030] Figure 1 is a schematic diagram of a partial structure of a refrigerator in some embodiments of the present invention;

[0031] Figure 2 is an isometric view of a portion of a deoxygenation device in some embodiments of the present invention;

[0032] Figure 3 yes Figure 2 Schematic diagram of the state of the deaerator when it is tilted along the length direction;

[0033] Figure 4 yes Figure 2 Schematic diagram of the state of the middle deaerator when it is tilted along the width direction;

[0034] Figure 5 is a top isometric view of a tilt detection device in some embodiments of the present invention;

[0035] Figure 6 yes Figure 5 An isometric cutaway view of the mid-tilt detection device;

[0036] Figure 7 yes Figure 5 A lower isometric view of the mid-tilt detection device;

[0037] Figure 8 yes Figure 5 A cross-sectional view of the mid-tilt detection device in a normal state (the moving body is in a first position);

[0038] Fig. 9 yes Figure 5 A cross-sectional view of the tilt detection device in a tilted state (the moving body is in the second position);

[0039] Fig.10 is a schematic diagram of the connection between the second lead and the second electrode in the first example of the present invention;

[0040] Fig.11 Schematic diagram of the connection between the second lead and the second electrode in the second example of the present invention. DETAILED DESCRIPTION

[0041] It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, rather than all embodiments of the present invention, and these embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0042] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Refer to the following Figure 1 and Figure 2 The following is a detailed description of some structures of refrigerators in some embodiments of the present invention. Figure 1 is a schematic diagram of a partial structure of a refrigerator in some embodiments of the present invention, Figure 2 is an isometric view of a portion of a deoxygenation device in some embodiments of the present invention.

[0045] It should be noted that, for the convenience of description and to enable those skilled in the art to quickly understand the technical solution of the present invention, the following text only describes the technical features that are strongly related (directly or indirectly related) to the technical problem and / or technical concept to be solved by the present invention, and will not describe the technical features that are weakly related to the technical problem and / or technical concept to be solved by the invention. Since the technical features with a weaker degree of correlation belong to the common knowledge in the field, even if the present invention does not describe the features with a weaker degree of correlation, it will not lead to insufficient disclosure of the present invention.

[0046] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the refrigerator includes a cabinet 1, a deoxygenation device 2, a tilt detection device 3, a first control valve 4, an optional second control valve 5 and an optional liquid replenishing device.

[0047] like Figure 1 As shown, the box 1 defines a storage room 11, and the storage room 11 is used to store stored objects (including food, medicine, wine, biological reagents, bacterial colonies, chemical reagents, etc.). The storage room 11 includes at least one of a freezing room, a cold storage room, and a temperature-changing room, and the number of the storage rooms 11 can be one, two, three, five, or any other feasible number.

[0048] like Figures 1 to 3 As shown, the deoxygenator 2 contains an electrolyte 21, and the top of the deoxygenator 2 is provided with an air outlet 22 and an optional liquid replenishment port 23. The deoxygenator 2 allows the oxygen in the deoxygenator 2 to escape through the air outlet 22, and receives water or the electrolyte 21 through the liquid replenishment port 23. Further, the deoxygenator 2 is an electrochemical deoxygenator. Specifically, the deoxygenator 2 transfers the oxygen in the storage chamber 11 to the outside of the refrigerator by means of the electrolyte 21 and the air outlet 22 and through an electrochemical reaction. Further specifically, the air outlet 22 of the deoxygenator 2 is connected to the outside of the refrigerator. The cathode of the deoxygenator 2 contacts the air in the storage chamber 11, so that the air in the storage chamber 11 and the electrolyte 21 in the deoxygenator 2 undergo a reduction reaction: O2+2H2O+4e-→4OH-. The generated OH- undergoes an oxidation reaction at the anode of the deoxygenator 2: 4OH-→O2+2H2O+4e-. The generated oxygen is discharged to the outside of the refrigerator through the air outlet 22, thereby realizing the deoxygenation function of the refrigerator.

[0049] like Figure 3 As shown, when the liquid level of the electrolyte 21 in the deoxygenator 2 reaches the highest liquid level, the maximum inclination angle of the deoxygenator 2 in its length direction is γ1. If the inclination angle of the deoxygenator 2 in its length direction is greater than γ1, the electrolyte 21 in the deoxygenator 2 will flow out from the gas outlet 22 or the liquid replenishing port 23.

[0050] like Figure 4 As shown, when the liquid level of the electrolyte 21 in the deoxygenator 2 reaches the highest liquid level, the maximum inclination angle of the deoxygenator 2 in the width direction is γ2. If the inclination angle of the deoxygenator 2 in the width direction is greater than γ2, the electrolyte 21 in the deoxygenator 2 will flow out from the gas outlet 22 and / or the liquid replenishing port 23.

[0051] Therefore, in order to prevent the electrolyte 21 in the deoxygenator 2 from flowing out, it is necessary to close the gas outlet 22 and the liquid replenishing port 23 before the inclination angle of the deoxygenator 2 in its length direction reaches γ1 and before the inclination angle of the deoxygenator 2 in its width direction reaches γ2.

[0052] In some embodiments of the present invention, the smaller one of γ1 and γ2 is used as the maximum inclination angle of the deoxygenator 2 and is recorded as γ. Therefore, in order to prevent the electrolyte 21 in the deoxygenator 2 from flowing out, it is necessary to close the gas outlet 22 and the liquid replenishing port 23 before the inclination angle of the deoxygenator 2 reaches γ.

[0053] like Figure 2 As shown, in order to achieve the above purpose, the tilt detection device 3 is installed on the box body 1 or the deoxygenation device 2. Preferably, the tilt detection device 3 is installed on the deoxygenation device 2 to detect the tilt angle of the deoxygenation device 2 through the tilt detection device 3. The first control valve 4 and the second control valve 5 are respectively installed on the deoxygenation device 2, and the first control valve 4 is arranged at the gas outlet 22 to control the opening and closing of the gas outlet 22 through the first control valve 4; the second control valve 5 is arranged at the liquid replenishment port 23 to control the opening and closing of the liquid replenishment port 23 through the second control valve 5.

[0054] Preferably, the first control valve 4 and the second control valve 5 are both normally open electromagnetic valves. Alternatively, those skilled in the art may also set the first control valve 4 and / or the second control valve 5 as normally closed electromagnetic valves as required.

[0055] Furthermore, the liquid replenishing device is in fluid communication with the second control valve 5, so that the water or electrolyte in the liquid replenishing device flows into the deoxygenating device 2 when the second control valve 5 is opened. Based on this, those skilled in the art can also fix the second control valve 5 to the housing 1 and connect it to the liquid replenishing port 23 through the pipe body as needed.

[0056] In addition, in other embodiments of the present invention, those skilled in the art may also omit the provision of the refilling device as needed, and replace the second control valve 5 with a cover. When the electrolyte 21 in the deoxygenator 2 is missing, the cover is opened manually, and the deoxygenator 2 is refilled through the refilling port 23. Alternatively, those skilled in the art may also omit the provision of the refilling port 23, the second control valve 5, and the refilling device as needed. When the electrolyte 21 in the deoxygenator 2 is missing, the deoxygenator 2 may be refilled through the gas outlet 22.

[0057] Refer to the following Figures 5 to 9 The tilt detection device 3 in some embodiments of the present invention is described in detail. Figure 5 is a top isometric view of a tilt detection device in some embodiments of the present invention, Figure 6 yes Figure 5 Isometric cutaway view of the mid-tilt detection device, Figure 7 yes Figure 5 Bottom axonometric view of the mid-tilt detection device, Figure 8 yes Figure 5 A cross-sectional view of the tilt detection device in a normal state (the moving body is in the first position), Fig. 9 yes Figure 5 Cross-sectional view of the tilt detection device in a tilted state (the moving body is in the second position).

[0058] like Figures 5 to 7 As shown, the tilt detection device 3 includes a housing 31, a top cover 32, a first lead 33, a second lead 34, a first electrode 35, a second electrode 36 and a moving body 37. The top cover 32 is arranged on the top of the housing 31, the first lead 33, the second lead 34, the first electrode 35 and the second electrode 36 are all fixed to the housing 31, and the moving body 37 is movably arranged in the housing 31.

[0059] like Figure 6 As shown, the housing 31 includes a bottom wall 311 and a side wall 312. The bottom wall 311 is formed with a first sink 3111 at a first position (not marked in the figure) of the housing 31, and the bottom wall 311 is formed with a second sink 3112 at a second position (not marked in the figure) of the housing 31.

[0060] like Figure 8 As shown, when the tilt detection device 3 is in a normal state, the moving body 37 is located at the first position and embedded in the first sink groove 3111.

[0061] like Fig. 9 As shown, when the tilt detection device 3 is in a tilted state, the moving body 37 is located at the second position and embedded in the second sink groove 3112 .

[0062] like Figure 6 , Figure 8 and Fig. 9 As shown, a plurality of second sinking grooves 3112 are arranged on the bottom wall 311, and the plurality of second sinking grooves 3112 are arranged at equal intervals around the first sinking groove 3111. The number of the second sinking grooves 3112 can be any number, such as 6, 8, 9, 12, etc.

[0063] like Figure 6 , Figure 8 and Fig. 9As shown, the first lead 33 passes through the side wall 312, one end of which is electrically connected to the first electrode 35, and the other end is exposed outside the side wall 312. The first electrode 35 is an annular conductive sheet fixed on the side wall 312. The annular conductive sheet can be a circular conductive sheet, or a semicircular conductive sheet with an opening, such as a C-shaped conductive sheet.

[0064] like Figures 5 to 9 As shown, a second electrode 36 is disposed in each second sink groove 3112. Preferably, the second electrode 36 is located at the center of the second sink groove 3112, and / or the top of the second electrode 36 is higher than the lowest point of the second sink groove 3112, so as to ensure that the moving body 37 in the second sink groove 3112 abuts against the second electrode 36.

[0065] In addition, in other embodiments of the present invention, those skilled in the art may also provide at least two second electrodes 36 in each second sink 3112 as needed to ensure that the moving body 37 can abut against at least one of the second electrodes 36 .

[0066] like Figure 6 and Figure 7 As shown, the second lead 34 is electrically connected to each second electrode 36 .

[0067] In some embodiments of the present invention, the tilt detection device 3 may further include a resistor, so that the tilt detection device 3 determines the tilt direction through the resistor.

[0068] In the first example of the present invention, Fig.10 As shown, a resistor 38 is connected in series between each second electrode 36 and the second lead 34, and the resistance value of each resistor 38 is different, so that when the moving body 37 moves to different second sinks 3112, the current flowing through the tilt detection device 3 or the voltage on both sides of the tilt detection device 3 are different. Therefore, the tilt direction of the deoxygenator 2 and / or the refrigerator can be determined accordingly, especially when the deoxygenator 2 is installed tilted, the installer can be reminded in time to make adjustments. Of course, those skilled in the art can also set the resistor 38 between the second electrode 36 and the second lead 34 to multiple, such as two, three, five, etc., as needed.

[0069] In the second example of the present invention, Fig.11 As shown, each second electrode 36 has a connection point 361 , all the connection points 361 are connected in series in sequence, and a resistor 38 is connected in series between two adjacent connection points 361 .

[0070] like Figure 6 , Figure 8 and Fig. 9As shown, in some embodiments of the present invention, the moving body 37 is a sphere. Of course, those skilled in the art can also set the moving body 37 to any other feasible shape, such as a disc, in other embodiments of the present invention as needed.

[0071] like Figure 6 , Figure 8 and Fig. 9 As shown, in order to enable the moving body 37 to automatically move from the second sink 3112 back to the first sink 3111, the top surface of the bottom wall 312 gradually slopes downward from the second sink 3112 to the first sink 3111, thereby forming a funnel-shaped surface.

[0072] like Figure 8 As shown, when the moving body 37 is located in the first sink 3111, the spherical surface of the moving body 37 abuts against the edge of the first sink 3111, thereby forming a plurality of abutment points (not marked in the figure). The tangent line passing through the abutment points and tangent to the spherical surface of the moving body 37 is recorded as the abutment tangent line, the angle between the abutment tangent line and the vertical direction is recorded as the first angle φ, and the inclination angle of the funnel-shaped surface is recorded as the second angle θ.

[0073] In some embodiments of the present invention, φ+θ<γ. Furthermore, when the tilt angle of the tilt detection device 3 is ≥φ+θ, the moving body 37 is moved into the second sink 3112 .

[0074] In some embodiments of the present invention, the setting of φ+θ<γ, and the setting of moving the movable body 37 to the second trough 3112 when the tilt detection device 3 has a tilt angle ≥φ+θ, not only enables the movable body 37 to automatically move from the second trough 3112 to the first trough 3111; it also enables the movable body 37 to move to the second trough 3112 in a timely manner when the tilt detection device 3 tilts; and enables the deoxygenation device 2 to store more electrolyte 21 while ensuring that the electrolyte 21 does not overflow.

[0075] Refer to the following Figure 8 and Fig. 9 , to explain in detail the working principle of the tilt detection device 3 of the present invention.

[0076] Under normal conditions, the refrigerator and the deoxygenator 2 are both in a horizontal position (or a vertical position), and the tilt detection device 3 is in a Figure 8 The moving body 37 is in the first sink 3111, and the first electrode 35 and the second electrode 36 are not conducting.

[0077] When the inclination angle of the refrigerator, the deoxidizing device 2 and the inclination detecting device 3 is ≥φ+θ, as Fig. 9As shown, the moving body 37 rolls from the first trough 3111 to the second trough 3112, thereby connecting the first electrode 35 and the second electrode 36. When the first electrode 35 and the second electrode 36 are connected, the first control valve 4 and the second control valve 5 are closed, thereby closing the gas outlet 22 and the liquid replenishing port 23 to prevent the electrolyte 21 in the deoxygenation device 2 from flowing out from the gas outlet 22 and the liquid replenishing port 23.

[0078] Based on the foregoing description, those skilled in the art will understand that the refrigerator of the present invention can detect whether the deoxygen device 2 is tilted through the tilt detection device 3, and when the tilt detection device 3 detects that the deoxygen device 2 is tilted, the first control valve 4 and the second control valve 5 are closed, thereby closing the air outlet 22 and the liquid replenishing port 23 to prevent the electrolyte 21 in the deoxygen device 2 from flowing out from the air outlet 22 and the liquid replenishing port 23.

[0079] Although not shown in the figures, in other embodiments of the present invention, those skilled in the art may also, as needed, dispose both the first electrode 35 and the second electrode 36 in the first trough 3111, so that the moving body 37 in the first trough 3111 can conduct the first electrode 35 and the second electrode 36, and the moving body 37 in the second trough 3112 cannot conduct the first electrode 35 and the second electrode 36.

[0080] Although not shown in the figures, in some other embodiments of the present invention, those skilled in the art may also provide a plurality of first electrodes 35 as needed, and install at least one first electrode 35 in each of the second sinks 3112 .

[0081] Although not shown in the figures, in some other embodiments of the present invention, those skilled in the art may also configure the second sink 3112 to be an annular groove as required.

[0082] So far, the technical solution of the present invention has been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art can split and combine the technical solutions in the above-mentioned embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present invention will fall within the protection scope of the present invention.

Claims

1. A refrigerator with deoxygenation and freshness preservation function, comprising: a box body defining a storage chamber; a deoxygenation device, which is mounted on the box body and includes an electrolyte and an air outlet, and the deoxygenation device transfers oxygen in the storage chamber to the outside of the refrigerator by means of the electrolyte and the air outlet and through an electrochemical reaction; A tilt detection device, used to detect whether the deoxygenation device is tilted; a first control valve, which is used to control the opening and closing of the gas outlet, wherein the first control valve is configured to close the gas outlet when the tilt detection device detects that the deoxygenation device is tilted; Wherein, the tilt detection device comprises: The shell has a first sink groove and a second sink groove on its bottom wall; the top surface of the bottom wall gradually slopes downward from the second sink groove to the first sink groove to form a funnel-shaped surface; A moving body is located in the housing, the tilt detection device in a normal state makes the moving body located in the first sink, and the tilt detection device in a tilted state makes the moving body move into the second sink; the moving body is set as a sphere; A first electrode and a second electrode, wherein the first electrode and the second electrode are both arranged on the housing, and the first electrode and the second electrode are electrically connected by the moving body in the first sink or the second sink; When the moving body is located in the first sink groove, the spherical surface of the moving body abuts against the edge of the first sink groove, thereby forming a plurality of abutment points; The tangent line passing through the contact point and being tangent to the spherical surface of the moving body is recorded as the contact tangent line. The angle between the abutting tangent line and the vertical direction is recorded as a first angle φ; The inclination angle of the funnel-shaped surface is recorded as the second angle θ; The maximum inclination angle of the deoxygenator is denoted as γ; when the liquid level of the electrolyte in the deoxygenator reaches the maximum liquid level, if the inclination angle of the deoxygenator is greater than γ, the electrolyte will flow out from the gas outlet; φ+θ<γ, so that the moving body can be moved into the second sedimentation tank in time when the liquid level of the electrolyte stored in the deoxygenation device reaches the highest liquid level and tilts.

2. The refrigerator with deoxygenation and freshness preservation function according to claim 1, wherein: A plurality of the second sinking grooves are arranged on the bottom wall, and the plurality of the second sinking grooves are arranged at equal intervals around the first sinking groove.

3. The refrigerator with deoxygenation and freshness preservation function according to claim 2, wherein: The first electrode is configured as an annular conductive sheet fixed on a side wall of the housing; and / or, at least one second electrode is respectively disposed in each of the second sinks.

4. The refrigerator with deoxygenation and freshness preservation function according to claim 3, wherein: The second electrode is located at the center of the second sink; and / or, The top of the second electrode is higher than the lowest point of the second sink.

5. The refrigerator with deoxygenation and freshness preservation function according to claim 1, wherein: The tilt detection device is configured to move the movable body into the second sink when the tilt angle of the tilt detection device is ≥φ+θ.

6. The refrigerator with deoxygenation and freshness preservation function according to any one of claims 1 to 4, wherein: The deoxygenation device also includes a liquid replenishment port, The refrigerator further includes a liquid replenishing device and a second control valve, wherein the liquid replenishing device is connected to the liquid replenishing port. The second control valve is used to control the opening and closing of the liquid replenishing port, and the second control valve is configured to close the liquid replenishing port when the tilt detection device detects that the deoxygenation device is tilted.

7. The refrigerator with deoxygenation and freshness preservation function according to claim 3 or 4, wherein: Each of the second electrode pairs has a connection point, all the connection points are connected in series in sequence, and a resistor is connected in series between two adjacent connection points.

8. The refrigerator with deoxygenation and freshness preservation function according to claim 3 or 4, wherein: The tilt detection device includes a first lead and a second lead, the first lead is electrically connected to the first electrode, the second lead is electrically connected to each of the second electrodes, at least one resistor is connected in series between each of the second electrodes and the second lead, and the resistance value of each of the at least one resistor is different.

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