CN219037317U - Refrigerator and fresh-keeping device thereof - Google Patents

Abstract

The utility model provides a refrigerator and a fresh-keeping device thereof, wherein the fresh-keeping device comprises an inner container, an electrolytic deoxidizing device and a heating wire, the inner container defines an air-conditioning fresh-keeping space, the electrolytic deoxidizing device is arranged in the air-conditioning fresh-keeping space and is configured to separate oxygen in air in the air-conditioning fresh-keeping space through electrochemical reaction, the heating wire is positioned around the electrolytic deoxidizing device and is configured to be controlled to be started so as to heat the electrolytic deoxidizing device. The refrigerator can heat the electrolytic deoxidation device through the heating wire, so that electrolyte of the electrolytic deoxidation device is prevented from freezing, and the normal deoxidization reaction is ensured.

Description

Refrigerator and fresh-keeping device thereof

Technical Field

The utility model relates to a refrigeration technology, in particular to a refrigerator and a fresh-keeping device thereof.

Background

Along with the continuous improvement of the social living standard, consumers hope to obtain a longer fresh-keeping period or improve the freshness of food materials in the same time period, and therefore, an oxygen removal module for adjusting the oxygen proportion in the gas in the space in an electrochemical reaction mode appears, so that the respiration of cells of the food materials is reduced, and the shelf life of the cells is prolonged.

Because the deoxidization module is in the low-temperature environment of the refrigerator, the deoxidization module is possibly cooled in a transitional way before working, so that electrolyte is frozen, and the deoxidization efficiency is affected.

Disclosure of Invention

An object of the present utility model is to overcome at least one of the drawbacks of the prior art and to provide a refrigerator and a fresh-keeping apparatus thereof.

A further object of the present utility model is to heat an electrolytic oxygen removal device to prevent freezing of the electrolyte of the electrolytic oxygen removal device.

It is a further object of the present utility model to reduce the temperature of an electrolytic oxygen removal device.

In particular, the present utility model provides a fresh-keeping apparatus for a refrigerator, comprising: the inner container is used for limiting an air-conditioning fresh-keeping space; the electrolytic deoxidizing device is arranged in the air-conditioning fresh-keeping space and is configured to separate oxygen in the air-conditioning fresh-keeping space through electrochemical reaction; and a heating wire positioned around the electrolytic oxygen removal device and configured to be controllably activated to heat the electrolytic oxygen removal device.

Optionally, the fresh-keeping device comprises: the main control board is electrically connected with the heating wire; and the temperature sensor is electrically connected with the main control board and is configured to acquire the temperature of the electrolytic oxygen removing device and send the temperature of the electrolytic oxygen removing device to the main control board so that the main control board starts the heating wire according to the temperature of the electrolytic oxygen removing device.

Optionally, the liner defines a storage compartment; the fresh-keeping device includes: the sealing cylinder is arranged at the bottom of the storage compartment and defines a forwardly opened air-conditioning fresh-keeping space; the storage drawer is arranged in the air-conditioning fresh-keeping space in a drawable manner; wherein, the electrolytic deoxidizing device is arranged on the top wall of the sealing cylinder body, and the heating wire is arranged on the bottom wall of the storage compartment.

Optionally, the fresh-keeping device comprises: the air duct plate is arranged on the front side of the rear wall of the inner container so as to limit a cooling chamber for arranging an evaporator and a storage chamber positioned in front of the cooling chamber together with the inner container, an air quantity distribution cavity is limited in the air duct plate, an air inlet is formed in one surface of the air duct plate facing the cooling chamber, and a plurality of air outlets are formed in the air duct plate; the air supply fan is arranged at the air inlet, the air inlet side of the air supply fan faces the cooling chamber, the air outlet side of the air supply fan faces the air distribution cavity and is configured to promote the formation of refrigerating air flow entering the air distribution cavity from the cooling chamber and discharged into the storage compartment from the air outlets, and the air supply fan is further configured to be started along with the starting of the heating wire.

Optionally, the fresh-keeping device comprises: the compressor is connected with the evaporator through a refrigerant pipeline and is configured to stop running when the heating wire is started.

Optionally, one of the air outlets is arranged to face the part of the electrolytic oxygen removing device protruding from the top wall of the sealing cylinder.

Optionally, a first overflow gap is arranged between the back wall of the sealing cylinder body and the air duct plate; and an air return port for communicating the storage compartment with the cooling chamber is formed on the air duct plate, and the air return port is opposite to the rear wall of the sealing cylinder.

Optionally, the sealing cylinder is positioned at the bottom of the storage compartment; and a second overflow gap is arranged between the bottom wall of the sealing cylinder body and the bottom wall of the storage compartment.

Optionally, a third overflow gap is arranged between the side wall of the sealing cylinder body and the side wall of the storage compartment.

Optionally, the top wall of the sealing cylinder is provided with a mounting port; the electrolytic oxygen removing device further includes a package case, a peripheral wall of which is formed with a lap joint flange, the package case being configured such that the lap joint flange is lap-jointed at an edge of the mounting port, so that a portion above the lap joint flange protrudes from a top wall of the seal cylinder.

Optionally, an air inlet is arranged on the part of the packaging shell extending into the modified atmosphere fresh-keeping space; the electrolytic deoxidizing device also comprises a reaction device arranged in the packaging shell, and the reaction device also comprises: a reaction vessel having a liquid storage chamber therein, the downward side of which has an opening; the cathode film group is arranged at the opening and is configured to consume oxygen in the air entering the packaging shell from the air inlet through electrochemical reaction; the anode plate is arranged in the liquid storage cavity at intervals with the cathode membrane assembly and is configured to provide reactants for the cathode membrane assembly through electrochemical reaction and generate electrolysis products.

Optionally, the fresh-keeping device comprises: the condensation plate is arranged on the rear wall of the sealing cylinder body and provided with a condensation wall surface facing the air-conditioning fresh-keeping space, and the condensation wall surface is configured to absorb cold energy so as to condense water vapor in the air-conditioning fresh-keeping space, thereby reducing the air humidity of the air-conditioning fresh-keeping space.

Optionally, a water collecting tank is formed on the bottom wall of the sealing cylinder, and the water collecting tank is located below the condensation plate to receive condensation water on the condensation wall surface.

Optionally, the fresh-keeping apparatus further comprises: the water absorbing piece comprises a main body part arranged in the condensation plate and an extension part formed at the bottom of the main body part and extending into the water collecting tank, and is configured to absorb condensation water in the water collecting tank by the extension part and transfer the condensation water to the main body part; the condensing plate is provided with a plurality of steam exhaust holes on one surface of the back of the condensing plate, which is away from the condensing wall surface, so that condensed water absorbed by the main body part is discharged into the storage compartment after being evaporated.

In particular, the present utility model provides a refrigerator comprising a fresh-keeping apparatus according to any one of the above.

The refrigerator provided by the utility model has the advantages that the electrolytic deoxidizing device is in the low-temperature environment of the refrigerator, the electrolytic deoxidizing device is possibly cooled in a transitional way before working, the heating wire is arranged around the electrolytic deoxidizing device, the heating wire can be electrified to generate heat, the electrolytic deoxidizing device is heated, the electrolyte of the electrolytic deoxidizing device is prevented from freezing, and the normal reaction is ensured.

Further, the refrigerator disclosed by the utility model has the advantages that the sealing cylinder body is arranged in the storage compartment, the electrolytic deoxidizing device is arranged on the top wall of the sealing cylinder body, and part of the electrolytic deoxidizing device protrudes out of the top wall of the sealing cylinder body, so that the part of the electrolytic deoxidizing device protruding out of the sealing cylinder body can exchange heat with the refrigerating airflow in the storage compartment, the temperature of the electrolytic deoxidizing device is reduced, and the influence on the service life of the electrolytic deoxidizing device due to the fact that heat generated in the operation process of the electrolytic deoxidizing device cannot be taken away in time is avoided.

Further, in the refrigerator, one air outlet is arranged to face the part of the electrolytic deoxygenation device protruding out of the top wall of the sealing cylinder. That is, the refrigerating air flow blown out from the air outlet can be directly blown to the part of the electrolytic oxygen removing device protruding out of the top wall of the sealing cylinder, so that the heat exchange efficiency of the electrolytic oxygen removing device can be further improved.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic view of a refrigerator according to an embodiment of the present utility model;

fig. 2 is a sectional view of a refrigerator according to an embodiment of the present utility model;

fig. 3 is a control schematic block diagram of a refrigerator according to an embodiment of the present utility model;

fig. 4 is a sectional view of a refrigerator according to another embodiment of the present utility model;

fig. 5 is a transverse sectional view of a refrigerator according to another embodiment of the present utility model;

FIG. 6 is a schematic view showing an installation relationship of an electrolytic oxygen removing device in a refrigerator according to an embodiment of the present utility model;

FIG. 7 is an exploded view of a cathode membrane module in an electrolytic oxygen removal device according to one embodiment of the present utility model;

fig. 8 is a schematic view of a structure of a sealing cylinder in a refrigerator according to an embodiment of the present utility model;

fig. 9 is an enlarged view of a portion a of fig. 8.

Detailed Description

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a refrigerator 1 according to an embodiment of the present utility model, and fig. 2 is a sectional view of the refrigerator 1 according to an embodiment of the present utility model.

The present utility model provides a refrigerator 1, which may generally include a cabinet 10 and a door 20.

The cabinet 10 may include a housing and a fresh-keeping apparatus, the housing being located at the outermost side of the overall refrigerator 1 to protect the overall refrigerator 1. The fresh-keeping device is wrapped by the shell, and a space between the fresh-keeping device and the shell is filled with a heat-insulating material (a foaming layer is formed) so as to reduce outward heat dissipation of the fresh-keeping device. In some embodiments, the preservation apparatus may further include a liner 12, the liner 12 may define a storage compartment 18 that is open forward, and the storage compartment 18 may be configured as a refrigerator compartment, freezer compartment, temperature change compartment, or the like.

In some embodiments, the storage temperature of the refrigerator compartment may be 2-9 ℃, or may be 4-7 ℃; the storage temperature of the freezing chamber may be-22 to-14 ℃, or may be-20 to 16 ℃. The freezing chamber is arranged below the refrigerating chamber, and the temperature changing chamber is arranged between the freezing chamber and the refrigerating chamber. The temperature in the freezer compartment is typically in the range of-14 to-22 ℃. The temperature changing chamber can be adjusted according to the requirements to store proper foods or be used as a fresh-keeping storage chamber.

The door 20 is provided at the front side of the case 10 for opening and closing the storage compartment. For example, the door 20 may be hinged to one side of the front of the case 10, and the storage compartments may be opened and closed in a pivoting manner, and the number of the door 20 may be matched with the number of the storage compartments, so that the storage compartments may be opened one by one. For example, a refrigerating chamber door, a freezing chamber door and a temperature changing chamber door may be provided for the refrigerating chamber, the freezing chamber and the temperature changing chamber, respectively. In some alternative embodiments, the door body 20 may also take the form of a side-by-side door, a side-sliding door, a sliding door, or the like.

In some embodiments, the storage compartment 18 is provided with cooling by a refrigeration system to achieve a refrigerated, frozen, temperature-variable storage environment. The refrigeration system may be a refrigeration cycle system composed of a compressor, a condenser, a throttle device, an evaporator 80, and the like. The evaporator 80 is configured to provide cooling directly or indirectly to the storage compartment.

Since the above-mentioned case 10, door 20, and refrigeration system are well known and easy to implement by those skilled in the art, the case 10, door 20, and refrigeration system are not described in detail in order to not obscure and obscure the utility model of the present application.

In some embodiments, the liner 12 has an air-conditioned space, which may be the entire compartment 18 within the liner 12 or a specific space that is again isolated within the compartment 18.

For example, in some specific embodiments, the refrigerator 1 may further include a seal cartridge 30 and a storage drawer 40. The sealed cylinder 30 is disposed in the storage compartment 18, the sealed cylinder 30 defines a forwardly opened air-conditioned fresh-keeping space, the storage drawer 40 is drawably disposed in the air-conditioned fresh-keeping space, and a user can open and close the storage drawer 40 in a drawing manner to take food therein.

Further, the refrigerator 1 may further include an electrolytic oxygen removing device 50, where the electrolytic oxygen removing device 50 is disposed in the air-conditioned fresh-keeping space and configured to separate oxygen in air in the air-conditioned fresh-keeping space through an electrochemical reaction.

In some specific embodiments, the electrolytic oxygen removing device 50 may be disposed on the top wall of the sealing cylinder 30, so that the air flow communication with the air-conditioned fresh-keeping space of the sealing cylinder 30 (the probability of being blocked by food materials is small) can be ensured, and the normal drawing of the storage drawer 40 is not affected.

Referring to fig. 2 and 3, further, the refrigerator 1 may further include a heating wire 100, the heating wire 100 being positioned around the electrolytic oxygen removal device 50 and configured to be controllably activated to heat the electrolytic oxygen removal device 50.

As described in the background, since the electrolytic oxygen removing device 50 is in the low temperature environment of the refrigerator, it may be excessively cooled before the operation, resulting in freezing of the electrolyte, which affects the oxygen removing efficiency. In this embodiment, the heating wire 100 is disposed around the electrolytic oxygen removing device 50, and can be energized to generate heat and heat the electrolytic oxygen removing device 50, so as to prevent the electrolyte of the electrolytic oxygen removing device 50 from freezing and ensure the normal progress of the reaction.

Referring to fig. 3, fig. 3 is a control schematic block diagram of a refrigerator according to an embodiment of the present utility model. In some embodiments, the refrigerator may further include a main control board 94 and a temperature sensor 96. The temperature sensor 96 is electrically connected to the heating wire 100. The temperature sensor 96 is electrically connected to the main control board 94 and is configured to acquire the temperature of the electrolytic oxygen removing device 50 and send the temperature of the electrolytic oxygen removing device 50 to the main control board 94 so that the main control board 94 activates the heating wire 100 according to the temperature of the electrolytic oxygen removing device 50.

In the present embodiment, the temperature sensor 96 may be directly provided inside the electrolytic oxygen removing device 50 to accurately detect the temperature of the electrolyte. The temperature sensor 96 may send the detected temperature of the electrolytic oxygen removing device 50 to the main control board 94, the main control board 94 may store a first temperature threshold value (for example, 3 ℃) in advance, and when the temperature of the electrolytic oxygen removing device 50 is less than the first temperature threshold value, the main control board 94 may control the power supply 92 to supply power to the heating wire 100, thereby heating the electrolytic oxygen removing device 50.

The main control board 94 may also store a second temperature threshold (for example, 5 ℃) in advance, and when the temperature of the electrolytic oxygen removing device 50 is greater than the second temperature threshold, the main control board 94 may control the cutting-off of the power supply to the heating wire 100 to complete the preheating of the electrolytic oxygen removing device 50, so that the electrolytic oxygen removing device 50 can operate normally. Since the electrolytic oxygen removing device 50 can also generate a certain amount of heat during normal operation, the electrolytic solution can be ensured to be frozen during the operation of the electrolytic oxygen removing device 50.

In some embodiments, the seal cartridge 30 is disposed at the bottom of the storage compartment and the heater wire 100 is disposed on the bottom wall of the storage compartment. Like this, on the one hand make the position of sealed barrel 30 more reasonable, the heater strip 100 also can be close to the electrolytic oxygen-eliminating device 50 on the sealed barrel 30 more, on the other hand, the heater strip 100 sets up on the diapire of storing compartment, makes the position of heater strip 100 more be close to the contact position of box and door body like this, and heater strip 100 can also play the effect of preventing the condensation through this contact position of heating.

Referring to fig. 2, in some embodiments, the case 10 may further include a duct plate 14, the duct plate 14 being disposed at a front side of a rear wall of the liner 12 to define a cooling chamber 16 for disposing an evaporator and a storage compartment 18 in front of the cooling chamber 16 together with the liner 12. The air distribution chamber 14a is defined in the air duct plate 14, an air inlet is formed in one surface of the air duct plate 14 facing the cooling chamber 16, and a plurality of air outlets 19 are formed in the air duct plate 14.

The refrigerator 1 may further include an air blower 84, the air blower 84 being disposed at the air intake and having an air intake side directed toward the cooling chamber 16 and an air outlet side directed toward the air volume distribution chamber 14a, configured to promote formation of a flow of cooling air from the cooling chamber 16 into the air volume distribution chamber 14a and from the plurality of air outlets 19 into the storage compartment 18.

When the refrigerator 1 is used for refrigerating, the evaporator exchanges heat with air in the cooling chamber 16, the air supply fan 84 is started, the air in the cooling chamber 16 is forced to be blown into the air distribution cavity 14a of the air duct plate 14 to form refrigerating air flow, the refrigerating air flow is distributed through the air distribution cavity 14a and then is sent into the storage compartment 18 from the plurality of air outlets 19, and then the refrigerating air flow exchanges heat with articles and air in the storage compartment 18, so that cooling is realized.

The duct plate 14 is formed with a return air inlet 17 for communicating the storage compartment 18 with the cooling compartment 16. The refrigerating air flow can return to the cooling chamber 16 through the return air inlet 17 after exchanging heat with the articles and air in the storage compartment 18, and then the refrigerating air flow is continuously exchanged with the evaporator, so that the circulating heat exchange is realized.

In some specific embodiments, the blower fan is also configured to be activated upon activation of the heater wire 100. In this way, the blower fan can rapidly fill the storage compartment with the heated air from the heating wire 100, and the heating efficiency of the electrolytic oxygen removing device 50 can be improved.

In some embodiments, one of the air outlets 19 is positioned directly opposite the portion of the electrolytic oxygen depletion device 50 protruding from the top wall of the seal cartridge 30.

That is, the cooling air flow blown out from the air outlet 19 can be directly blown to the portion of the electrolytic oxygen removing device 50 protruding out of the top wall of the sealing cylinder 30, so that the cooling air flow blown out from the air outlet 19 can exchange heat with the electrolytic oxygen removing device 50, the convection heat exchange coefficient is improved, and the heat exchange efficiency of the electrolytic oxygen removing device 50 is further improved.

Further, the refrigerator includes a compressor 82 connected to the evaporator through a refrigerant line configured to be deactivated when the heating wire 100 is activated. That is, when the heating wire 100 is in the heating process, the refrigerator does not refrigerate, which may further improve the heating efficiency.

Referring to fig. 4, fig. 4 is a sectional view of a refrigerator 1 according to another embodiment of the present utility model. In some embodiments, there is a first flow gap 34 between the back wall of the seal cartridge 30 and the duct plate 14. The air duct plate 14 is formed with an air return port 17 for communicating the storage compartment 18 with the cooling compartment 16, the air return port 17 being opposite to the rear wall of the seal cylinder 30.

The refrigerating air flow can return to the cooling chamber 16 through the return air inlet 17 after exchanging heat with the articles and air in the storage compartment 18, and then the refrigerating air flow is continuously exchanged with the evaporator, so that the circulating heat exchange is realized. Since the first through-flow gap 34 is provided between the rear wall of the seal cylinder 30 and the duct board 14, the return air inlet 17 is opposite to the rear wall of the seal cylinder 30, and the refrigerating air flow in the storage compartment 18 flows into the return air inlet 17 through the first through-flow gap 34.

Because the return air inlet 17 is opposite to the rear wall of the sealing cylinder 30, the electrolytic oxygen removing device 50 is arranged on the top wall of the sealing cylinder 30, that is, the height of the return air inlet 17 is lower than that of the electrolytic oxygen removing device 50, when the return air flow in the storage compartment 18 flows to the return air inlet 17, the return air flow flows through the electrolytic oxygen removing device 50 from top to bottom, that is, the return air flow exchanges heat with the electrolytic oxygen removing device 50, so that the heat exchange efficiency of the electrolytic oxygen removing device 50 is further improved.

In some embodiments, the seal cylinder 30 is located at the bottom of the storage compartment 18, and a second through-flow gap 39 is located between the bottom wall of the seal cylinder 30 and the bottom wall of the storage compartment 18, so that the second through-flow gap 39 is in communication with the first through-flow gap 34, and the cooling air flow discharged from the air outlet 19 into the storage compartment 18 can sequentially pass through the second through-flow gap 39 and the first through-flow gap 34, so as to form a cooling air flow wrapping the seal cylinder 30 up and down, and can omnidirectionally cool the seal cylinder 30.

Referring to fig. 5, fig. 5 is a transverse sectional view of a refrigerator according to another embodiment of the present utility model. In some embodiments, a third flow gap 35 is provided between the side wall of the seal cartridge 30 and the side wall of the storage compartment 18.

This arrangement allows the third flow gap 35 to communicate with the first flow gap 34, and the flow of refrigerant from the air outlet 19 into the storage compartment 18 may pass through the third flow gap 35 and the first flow gap 34 in sequence to form a flow of refrigerant that transversely surrounds the seal cylinder 30, and may be able to cool the seal cylinder 30 in all directions.

Referring to fig. 6, fig. 6 is a schematic view showing the installation relationship of the electrolytic oxygen removing device 50 in the refrigerator 1 according to one embodiment of the present utility model. In some embodiments, the top wall of the seal cartridge 30 has a mounting opening 36. The electrolytic oxygen removing device 50 further includes a packing case 510, a peripheral wall of the packing case 510 is formed with a lap joint flange 514, and the packing case 510 is configured such that the lap joint flange 514 is lap-jointed at an edge of the mounting port 36, so that a portion above the lap joint flange 514 protrudes from a top wall of the seal cylinder 30.

Further, the package housing 510 may further include an upper housing part 513 and a lower housing part 515, the upper housing part 513 and the lower housing part 515 being fastened together to define a receiving cavity, a lap flange 514 being formed at an outer circumference of the lower housing part 515, the lap flange 514 being overlapped with an edge of the mounting port 36 such that a bottom wall and a part of a peripheral wall of the lower housing part 515 are under a top wall of the sealing cylinder 30.

The upper casing 513 may have a plurality of hooks provided on a peripheral wall thereof, and the lower casing 513 may have a plurality of locking grooves provided on a peripheral wall thereof, and when the upper casing 513 is locked with the lower casing 515, the peripheral wall of the upper casing 513 may extend into the lower casing 515 and the plurality of hooks may be engaged with the plurality of locking grooves in a one-to-one correspondence so as to fix the upper casing 513 and the lower casing 515 and define the accommodating cavity.

Further, an air inlet 512 is provided on a portion of the enclosure 510 extending into the drawing space, and in particular, an air inlet 319 may be provided on a peripheral wall of the lower casing 318 below the cover plate 100, so that air in the drawing space enters the enclosure 510.

The electrolytic oxygen removal device 50 further includes a reaction device disposed within the enclosure 510, the reaction device further including: a reaction vessel 522, a cathode membrane stack 524, and an anode plate 526.

The reaction vessel 522 has a liquid storage chamber therein, and a downward facing surface thereof has an opening. The cathode film set 524 is disposed at the opening and configured to consume oxygen in the air entering the package housing 510 from the air inlet 512 through an electrochemical reaction. The anode plate 526 is disposed within the reservoir chamber in spaced relation to the cathode membrane assembly 524 and is configured to provide reactants to the cathode membrane assembly 524 and produce an electrolysis product by an electrochemical reaction.

The reaction vessel 522 is flat, and its wide surface is horizontally disposed and fixed inside the package 510. The reaction vessel 522 is open on the side that is wider downward. The cathode film set 524 has waterproof and breathable functions, and is disposed at the opening to define a liquid storage cavity together with the reaction container 522.

Thus, the air in the drawing space can enter from the air inlet 512 of the packaging shell 510, and then can enter the liquid storage cavity through the cathode film group 524, the cathode film group 524 can load the negative electrode of the external power supply, and the oxygen in the air can undergo a reduction reaction at the cathode film group 524 to generate negative ions, namely: O2+2H2O+4e- & gt4OH-.

The liquid storage cavity contains electrolyte (for example, 0.1-8 mol/L NaOH, which can be specifically adjusted according to actual needs). Negative ions generated at the cathode film group 524 flow to the anode plate 526 under the action of an electric field, and undergo oxidation reaction on the anode plate 526 to generate oxygen, namely: 4OH- & gtO2+2H2O+4e-.

The package housing 510 may also be provided with an oxygen vent 517a near the anode plate 526. Oxygen generated on the anode plate 526 can be discharged from the oxygen discharge port, namely, the purpose of separating air is achieved.

Specifically, the package housing 510 is further provided with a cover 517, and the cover 517 may be detachably connected to the upper housing part 513, and the oxygen outlet 517a is disposed in the upper housing part 513.

Referring to fig. 7, fig. 7 is an exploded view of a cathode membrane stack 524 in an electrolytic oxygen removal device 50 according to one embodiment of the present utility model. Further, the cathode film set 524 further includes a catalytic layer 524a, a first waterproof and breathable layer 524b, a conductive layer 524c, and a second waterproof and breathable layer 524d sequentially disposed from top to bottom.

The catalytic layer 524a may employ a noble metal or rare metal catalyst, such as metallic platinum, metallic gold, metallic silver, metallic manganese, metallic rubidium, or the like.

The first and second waterproof and breathable layers 524b, 524d may be waterproof and breathable films such that electrolyte cannot seep from the reservoir, while air may enter the reservoir through the first and second waterproof and breathable layers 524b, 524d.

The conductive layer 524c can be made into a corrosion-resistant metal current collecting net, such as metal nickel, metal titanium, etc., so that the conductive layer not only has better conductivity, corrosion resistance and supporting strength.

Referring to fig. 7, the conductive layer 524c also has an extension 524e, and the extension 524e passes outwardly through the package case 510 so as to be connected to a negative electrode of an external power source.

The anode plate 526 may be made of a material having high corrosion resistance and reducibility, such as metal foam nickel, nickel mesh, etc., and one side of the anode plate 526 may be further connected to an anode connection tab, which may extend out of the package case 510, so as to facilitate connection of the positive electrode of the external power source.

Further, referring to fig. 5, when the lap joint flange 514 laps over the edge of the mounting port 36, the bottom wall of the pack case 510 is in an inclined state, and the pack case 510 is provided with a drain port 516 at an inclined downstream of the bottom wall thereof so as to drain the liquid product inside the pack case 510. Thus, after the cathode film set 524 is damaged and broken, electrolyte flows into the package case 510 and is guided to one side by the inclined bottom wall, so that the electrolyte is conveniently discharged from the liquid discharge port 516, and the liquid discharge port 516 is provided with a liquid discharge pipe so as to be guided to the outside for collection.

Referring to fig. 8 and 9, in some embodiments, the preservation apparatus further includes a condensation plate 60. The condensation plate 60 is disposed on the rear wall of the sealing cylinder 30, and has a condensation wall 64 facing the drawing space, and the condensation wall 64 is configured to absorb cold energy to condense water vapor in the drawing space, thereby reducing air humidity in the drawing space.

The condensation plate 60 may be made of a material with a relatively high heat absorption coefficient, such as metal, and has a high speed of absorbing ambient cold and a lower temperature under the same environment. When the wet air in the drawing space is supersaturated to generate condensation, the generated condensation can be condensed on the condensation plate 60, and water drops are gradually formed along with the continuous accumulation of the condensed water drops, namely, the water vapor in the air in the condensation plate 60 is separated, so that the humidity of the air in the drawing space is reduced, and the drawing space is further more favorable for storing fresh food materials.

In addition, since the condensation plate 60 is disposed on the rear wall of the sealing cylinder 30, and the rear wall of the sealing cylinder 30 is closer to the cooling chamber 16, that is, is far away from the door 20, the rear wall of the sealing cylinder 30 has a lower temperature than other wall plates, so that the condensation plate 60 is disposed on the rear wall of the sealing cylinder 30, and the temperature of the condensation plate is lower than that of the other wall plates, and as known from the thermodynamic principle, the lower temperature is easier to form condensation, the vapor in the drawing space is easier to be condensed by the condensation wall surface, and the condensation efficiency is improved.

Further, a water collecting tank 38 is formed on the bottom wall of the sealing cylinder 30, and the water collecting tank 38 is located below the condensation wall 64 to receive the condensation water on the condensation wall 64.

When the wet air in the drawing space is supersaturated to generate condensation, the generated condensation is firstly condensed on the condensation plate 60 positioned on the rear wall, water drops are gradually formed along with the continuous accumulation of the condensation water, and the water drops flow downwards into the water collecting tank 38 along the surface of the condensation plate 60 under the action of self gravity, so that the condensation water is conveniently cleaned.

Further, the fresh keeping apparatus further includes a water absorbing member 70, the water absorbing member 70 including a main body portion 72 disposed inside the condensation plate 60 and an extension portion 74 formed at the bottom of the main body portion 72 and extending into the water collecting tank 38, the water absorbing member 70 being configured to absorb condensed water in the water collecting tank 38 by the extension portion 74 and transfer the condensed water to the main body portion 72.

The condensation plate 60 is provided with a plurality of steam discharge holes 62 on a side facing away from the condensation wall 64 so that condensed water absorbed by the main body 72 is discharged into the storage compartment 18 after being evaporated.

The main body 72 of the water absorbing member 70 is disposed inside the condensation plate 60, and the extension 74 of the water absorbing member 70 extends into the water collecting tank 38, so that the extension 74 of the water absorbing member 70 can absorb the condensed water collected in the water collecting tank 38 and transfer the condensed water to the main body 72 under the action of capillary phenomenon, on one hand, the condensed water in the water collecting tank 38 can be cleaned timely to prevent the condensed water from overflowing, and on the other hand, the condensed water can be transferred to the main body 72 with a larger area, thereby facilitating evaporation and discharge. The condensation plate 60 is provided with a plurality of steam discharge holes 62 on a side facing away from the condensation wall 64 so that the condensed water absorbed by the main body 72 is discharged into the storage compartment 18 after being evaporated.

In the refrigerator 1, as the electrolytic oxygen removing device 50 is in the low-temperature environment of the refrigerator, the electrolytic oxygen removing device 50 is possibly cooled in a transitional way before working, and the heating wire 100 is arranged around the electrolytic oxygen removing device 50 and can be electrified to generate heat and heat the electrolytic oxygen removing device 50, so that the electrolyte of the electrolytic oxygen removing device 50 is prevented from freezing, and the normal reaction is ensured.

Further, in the refrigerator 1 of the present utility model, since the sealing cylinder 30 is disposed in the storage compartment 18, and the electrolytic oxygen removing device is disposed on the top wall of the sealing cylinder 30, and part of the electrolytic oxygen removing device protrudes from the top wall of the sealing cylinder 30, the part of the electrolytic oxygen removing device 50 protruding from the sealing cylinder 30 can exchange heat with the refrigerating air flow in the storage compartment 18, so as to reduce the temperature of the electrolytic oxygen removing device 50, and avoid the influence on the service life of the electrolytic oxygen removing device 50 due to the fact that heat generated in the operation process cannot be taken away in time.

Further, in the refrigerator 1 of the present utility model, since one of the air outlets 19 is provided to face the portion of the electrolytic oxygen removing device 50 protruding from the top wall of the sealing cylinder 30. That is, the cooling air flow blown out from the air outlet 19 can be blown straight to the portion of the electrolytic oxygen removing device 50 protruding from the top wall of the seal cylinder 30, so that the heat exchanging efficiency of the electrolytic oxygen removing device 50 can be further improved.

Further, in the refrigerator 1 of the present utility model, since the condensation plate 60 is disposed on the rear wall of the sealing cylinder 30, the condensation plate 60 has the condensation wall 64 facing the drawing space, and the condensation wall 64 can absorb the cold energy of the storage compartment 18 to make it have a lower temperature, so that when the wet air in the drawing space is supersaturated to generate condensation, the generated condensation will condense on the condensation wall 64, and as the amount of condensed water drops continuously accumulates to form water drops, i.e. water vapor in the air in the drawing space is separated out, the humidity of the air in the drawing space is reduced, and the drawing space is further more beneficial to storing fresh food.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (15)

1. A fresh-keeping apparatus for a refrigerator, comprising:

the inner container is used for limiting an air-conditioning fresh-keeping space;

the electrolytic deoxidizing device is arranged in the air-conditioning fresh-keeping space and is configured to separate oxygen in the air-conditioning fresh-keeping space through electrochemical reaction;

and a heating wire positioned around the electrolytic oxygen removal device and configured to be controllably activated to heat the electrolytic oxygen removal device.

2. The preservation apparatus as defined in claim 1, wherein,

the main control board is electrically connected with the heating wire; and

and the temperature sensor is electrically connected with the main control board and is configured to acquire the temperature of the electrolytic oxygen removing device and send the temperature of the electrolytic oxygen removing device to the main control board, so that the main control board starts the heating wire according to the temperature of the electrolytic oxygen removing device.

3. The preservation apparatus as defined in claim 1, wherein,

the inner container defines a storage compartment;

the fresh-keeping device further includes:

the sealing cylinder is arranged at the bottom of the storage compartment and defines the air-conditioning fresh-keeping space which is opened forwards;

the storage drawer is arranged in the air-conditioning fresh-keeping space in a drawable manner; wherein,,

the electrolytic deoxidizing device is arranged on the top wall of the sealing cylinder body, and the heating wire is arranged on the bottom wall of the storage compartment.

4. A preservation apparatus in accordance with claim 3 further comprising:

the air duct plate is arranged on the front side of the rear wall of the inner container, so as to jointly define a cooling chamber for arranging an evaporator and the storage compartment positioned in front of the cooling chamber, an air outlet distribution cavity is defined in the air duct plate, an air inlet is formed in one surface of the air duct plate, facing the cooling chamber, and a plurality of air outlets are formed in the air duct plate;

the air supply fan is arranged at the air inlet, the air inlet side of the air supply fan faces the cooling chamber, the air outlet side of the air supply fan faces the air distribution cavity and is configured to promote the formation of refrigerating air flow which enters the air distribution cavity from the cooling chamber and is discharged into the storage compartment from a plurality of air outlets, and the air supply fan is further configured to be started along with the starting of the heating wire.

5. The preservation apparatus defined in claim 4 further comprising:

the compressor is connected with the evaporator through a refrigerant pipeline and is configured to stop running when the heating wire is started.

6. The preservation apparatus defined in claim 4, wherein,

one of the air outlets is arranged to be opposite to the part of the electrolytic oxygen removing device protruding out of the top wall of the sealing cylinder body.

7. The preservation apparatus defined in claim 4, wherein,

a first overflow gap is arranged between the rear wall of the sealing cylinder body and the air duct plate; and is also provided with

And an air return port used for communicating the storage compartment with the cooling chamber is formed in the air duct plate, and the air return port is opposite to the rear wall of the sealing cylinder body.

8. The preservation apparatus defined in claim 4, wherein,

the sealing cylinder body is positioned at the bottom of the storage compartment; and is also provided with

A second overflow gap is arranged between the bottom wall of the sealing cylinder body and the bottom wall of the storage compartment.

9. The preservation apparatus defined in claim 4, wherein,

a third overflow gap is arranged between the side wall of the sealing cylinder body and the side wall of the storage compartment.

10. A fresh-keeping apparatus according to claim 3, wherein,

the top wall of the sealing cylinder body is provided with a mounting opening;

the electrolytic oxygen removing device further comprises a packaging shell, wherein a lap joint flange is formed on the peripheral wall of the packaging shell, and the packaging shell is configured to enable the lap joint flange to lap joint at the edge of the mounting opening, so that the part above the lap joint flange protrudes out of the top wall of the sealing barrel.

11. The preservation apparatus defined in claim 10 wherein,

an air inlet is arranged on the part of the packaging shell extending into the air-conditioning fresh-keeping space;

the electrolytic oxygen removal device also comprises a reaction device arranged in the packaging shell, and the reaction device also comprises:

a reaction vessel having a liquid storage chamber therein, the downward side of which has an opening;

a cathode membrane set disposed at the opening and configured to consume oxygen in air entering the package case from the air inlet through an electrochemical reaction;

an anode plate disposed in the reservoir chamber in spaced relation to the cathode membrane assembly and configured to provide a reactant to the cathode membrane assembly and to generate an electrolysis product by an electrochemical reaction.

12. A preservation apparatus in accordance with claim 3 further comprising:

the condensation plate is arranged on the rear wall of the sealing cylinder body and provided with a condensation wall surface facing the air-conditioning fresh-keeping space, and the condensation wall surface is configured to absorb cold energy so as to condense water vapor in the air-conditioning fresh-keeping space, thereby reducing the air humidity of the air-conditioning fresh-keeping space.

13. The preservation apparatus defined in claim 12 wherein,

the bottom wall of the sealing cylinder body is provided with a water collecting tank, and the water collecting tank is positioned below the condensation plate so as to receive condensation water on the condensation wall surface.

14. The preservation apparatus defined in claim 13 further comprising:

a water absorbing member including a main body portion provided inside the condensation plate and an extension portion formed at a bottom of the main body portion and extending into the water collecting tank, the water absorbing member being configured to absorb condensed water in the water collecting tank by the extension portion and to transfer to the main body portion;

the condensation plate is provided with a plurality of steam exhaust holes on one surface which is far away from the condensation wall surface, so that condensed water absorbed by the main body part is discharged into the storage compartment after being evaporated.

15. A refrigerator characterized by comprising a fresh-keeping apparatus according to any one of claims 1 to 14.

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