WO2019105428A1

WO2019105428A1 - Refrigeration and freezing apparatus and oxygen removal control method therefor

Info

Publication number: WO2019105428A1
Application number: PCT/CN2018/118268
Authority: WO
Inventors: 刘浩泉; 姜波; 刘昀曦; 辛若武
Original assignee: 青岛海尔股份有限公司
Priority date: 2017-11-30
Filing date: 2018-11-29
Publication date: 2019-06-06
Also published as: CN109855375A; CN109855375B

Abstract

A refrigeration and freezing apparatus and an oxygen removal control method therefor. A storage container (100) is provided within the refrigeration and freezing apparatus. An electrolytic oxygen removal component (200) is provided on the surface of the storage container (100). The electrolytic oxygen removal component (200) comprises an anode plate (220), a cathode plate (230), a proton exchange membrane (210), a battery (2233), and a fan (250) used for blowing water vapor towards the anode plate (220). Either electrode of the battery (2233) is controllably connected to the anode plate (220) and to the cathode plate (230). The electrolytic oxygen removal component (200) is configured to consume the oxygen in the storage container by means of an electrolysis reaction. When a door body (20) of the refrigeration and freezing apparatus is detected as being opened by a user, the fan (250) of the electrolytic oxygen removal component (200) is automatically turned off or the fan (250) is kept in a turned-off state, thus preventing the user from being affected by the noise generated by the fan when the user is using the refrigeration and freezing apparatus, and implementing silenced use of the refrigeration and freezing apparatus.

Description

Refrigeration and freezing device and oxygen removal control method thereof

Technical field

The invention relates to the field of refrigeration and freezing, in particular to a refrigerating and freezing device and a deoxidizing control method thereof.

Background technique

The modified atmosphere preservation technology generally refers to a technique for prolonging the storage life of a food by adjusting the gas atmosphere (gas composition ratio or gas pressure) of the enclosed space in which the storage is located, and the basic principle is: in a certain closed space. A gas atmosphere different from the normal air component is obtained by various adjustment methods to suppress physiological and biochemical processes and microbial activities leading to spoilage of the stored matter (usually the foodstuff). In particular, in the present application, the modified atmosphere preservation will be specifically directed to a modified atmosphere preservation technique that adjusts the proportion of gas components.

It is known to those skilled in the art that normal air components include (by volume percent, hereinafter the same): about 78% nitrogen, about 21% oxygen, about 0.939% rare gas 0.031% carbon dioxide, and 0.03% other gases. And impurities (for example, ozone, nitrogen monoxide, nitrogen dioxide, water vapor, etc.. In the field of modified atmosphere preservation, it is common to use a nitrogen-filled space to reduce the oxygen content in a closed space to obtain a nitrogen-rich and oxygen-poor fresh gas. Atmosphere. Here, those skilled in the art are aware that a nitrogen-enriched gas refers to a gas having a nitrogen content exceeding the nitrogen content of the above-mentioned normal air, for example, the nitrogen content thereof may be 95% to 99% or even higher; and the nitrogen-rich oxygen is rich. The fresh gas atmosphere refers to a gas atmosphere in which the nitrogen content exceeds the above-mentioned normal air nitrogen content and the oxygen content is lower than the oxygen content in the above-mentioned normal air.

The history of modified atmosphere preservation technology dates back to 1821 when German biologists discovered that fruits and vegetables could reduce metabolism at low oxygen levels. But until now, due to the large size and high cost of nitrogen-making equipment traditionally used for gas-conditioning preservation, the technology is basically limited to use in various large-scale professional storage (the storage capacity is generally at least 30 tons). . It can be said that the appropriate gas regulation technology and corresponding equipment can economically reduce and quiet the air-conditioning system, making it suitable for home or individual users. It is a constant desire of technicians in the field of atmosphere preservation and preservation. A technical problem that can be successfully solved.

Summary of the invention

In view of the above problems, the present invention has been made in order to provide a refrigerating and freezing apparatus and an oxygen scavenging control method thereof that overcome the above problems or at least partially solve the above problems.

It is an object of the present invention to provide a gas atmosphere rich in nitrogen and oxygen to promote food preservation.

Another object of the present invention is to achieve quieting of the electric de-oxygen module.

Another object of the invention is to save energy and increase the useful life of the electrical de-oxygen assembly.

In one aspect, the present invention provides a deaeration control method for a refrigerating and freezing device. The refrigerating and freezing device has a storage container therein, and the surface of the storage container is provided with an electric de-oxygen module, and the electric de-oxygen module comprises: an anode plate, a cathode plate, a proton exchange membrane, a battery, and a fan for blowing water vapor to the anode plate, the two poles of the battery are controllably connected to the anode plate and the cathode plate, and the electric desulfurization module is configured to consume oxygen inside the storage container by electrolytic reaction, and the control method The method includes: detecting a door opening trigger signal of the refrigerating and freezing device; determining whether the electric deactivating oxygen component is in a working state; if yes, separately turning off the fan; if not, maintaining the disconnected state of the battery power connection and the closed state of the fan until detecting The door closes the trigger signal.

Optionally, the step of separately turning off the fan further comprises: determining whether an opening trigger signal of the storage container is detected; if yes, disconnecting the power supply connection of the battery to suspend operation of the electric deactivating oxygen component; if not, maintaining the fan closed In the state, the control electric de-energizing component continues to work.

Optionally, after the step of disconnecting the power supply connection of the battery and suspending the operation of the electric deactivating oxygen component, the method further comprises: determining whether a shutdown trigger signal of the storage container and a closing trigger signal of the door body are detected; and if so, reconnecting the battery The power supply is connected and the fan is turned on, and the electric de-oxidizing component is controlled to operate according to a preset working mode.

Optionally, after the step of controlling the electric de-energizing component to continue working in the state that the fan is kept off, the method further comprises: determining whether the door closing trigger signal is detected; and if yes, re-turning on the fan, controlling the deaerator component according to the preset Work mode is running.

Optionally, the preset working mode is set to: after the power supply connection of the battery is turned on, the power supply connection of the battery is continuously operated for a first preset time, and then the power supply connection of the battery is disconnected for a second preset time, and the above steps are cycled. Intermittent start-stop operation; the fan is turned on during the period in which the electric de-energizing component continues to work, and is turned off during the period in which the electric de-energizing component is suspended.

In another aspect, the present invention provides a refrigerating and freezing apparatus, comprising: a casing, wherein a storage compartment of the refrigerating and freezing apparatus is formed inside; a door body is openably and closably disposed on a front side of the casing; and a storage container is provided Forming a storage space inside the storage compartment; an electric de-energizing component is detachably disposed on a surface of the storage container, configured to consume oxygen in the atmosphere of the fresh-keeping space through an electrolysis reaction; wherein the electric de-oxygen component comprises An anode plate configured to electrolyze water vapor to generate hydrogen ions and oxygen; a cathode plate configured to react with hydrogen ions and oxygen to form water; a proton exchange membrane sandwiched between the cathode plate and the anode plate, configured to hydrogen ions Transported from the anode plate side to the cathode plate side; the fan is disposed on the side of the anode plate facing away from the proton exchange membrane to blow the water vapor outside the storage container toward the anode plate; the door opening and closing detecting device is disposed on The door body or the box body is configured to generate an opening trigger signal or a closing trigger signal of the door body when the door body is opened or closed; the state detecting device is electrically connected to the electric deactivating oxygen component And configured to detect an operating state of the electric de-oxygen component; wherein the electric de-oxygen component is electrically connected to the door opening and closing detecting device, configured to receive the opening trigger signal of the door body and the electric de-energizing component is in an operating state, The fan is turned off separately; when the opening trigger signal of the door body is received and the oxygen de-energizing component is in the non-operating state, the disconnected state of the battery power supply connection and the closed state of the fan are maintained until the door closing trigger signal is detected.

Optionally, the refrigerating and freezing device further includes: a storage container opening and closing detecting device disposed on the storage container, configured to generate an opening trigger signal and a closing trigger signal of the storage container when the storage container is opened or closed; The electric de-energizing component is further configured to: disconnect the battery power supply connection and suspend the operation when receiving the opening trigger signal of the storage container; and maintain the opening trigger signal of the storage container without receiving the opening trigger signal The fan continues to work in the closed state.

Optionally, the electric deactivating oxygen component is further configured to: when the shutdown trigger signal of the storage container and the closing trigger signal of the door body are detected, reconnect the power supply connection of the battery and turn on the fan, and work according to the preset The mode runs.

Optionally, the electric de-energizing component is further configured to: when the door closing trigger signal is detected, re-open the fan and operate according to a preset working mode.

Optionally, the electric de-energizing component is further configured to: after the first preset time is continuously operated, the second preset time is suspended after the door body is kept closed, and the above-mentioned steps are intermittently started and stopped; the fan is controlled. The electric de-energizing component is turned on during the period of continuous operation, and is turned off during the period in which the electric de-energizing component is suspended.

The invention provides a deaeration control method for a refrigerating and freezing device. The refrigerating and freezing device has a storage container therein, and the surface of the storage container is provided with an electric de-oxygen module, and the electric de-oxygen module comprises: an anode plate, a cathode plate and a proton exchange membrane. And a battery and a fan for blowing water vapor to the anode plate, the two poles of the battery being controllably connected to the anode plate and the cathode plate, the electric desulfurization module being configured to consume oxygen inside the storage container by electrolytic reaction. When detecting the user opening the door of the refrigerating and freezing device, the method of the invention automatically turns off the fan of the electric deactivating oxygen component or keeps the fan closed state, so as to prevent the noise generated by the fan from affecting the user when using the refrigerating and freezing device. The use of the refrigerating and freezing device is quieted.

Further, the method of the present invention further includes: when detecting that the user turns on the storage container, disconnecting the power supply connection between the battery and the anode plate and the cathode plate to suspend operation of the electric deactivating oxygen component. When the user opens the storage container, the storage space communicates with the external environment, and the internal gas atmosphere is destroyed. Even if the electric desulfurization component continues to work, the oxygen removal effect cannot be achieved. At this time, the battery and the cathode plate and the anode are disconnected in time. The connection of the board saves battery energy while also improving the service life of the electric de-oxygen module.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention are described in detail below by way of example, and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic view of a storage container of a refrigerating and freezing apparatus according to an embodiment of the present invention;

2 is a schematic view of an electric deaeration module of a refrigerating and freezing apparatus according to an embodiment of the present invention;

3 is an exploded perspective view of an electric deaeration module of a refrigerating and freezing apparatus according to an embodiment of the present invention;

4 is a schematic view of a housing case of an electric deaeration module of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 5 is an enlarged schematic view showing the opening of the storage container of the refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 6 is an exploded perspective view of a storage container of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 7 is a schematic internal view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 8a is a schematic block diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 8b is a schematic block diagram of a refrigerating and freezing apparatus according to another embodiment of the present invention;

9 is a schematic view of a deaeration control method of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 10 is a flow chart of a deaeration control method of a refrigerating and freezing apparatus according to an embodiment of the present invention.

Detailed ways

As shown in FIG. 1 and FIG. 2, an embodiment of the present invention first provides a storage container 100 for a refrigerating and freezing device, comprising: a casing 110 and an electric de-oxygen module 200. A storage space is defined in the casing 110, and an upper surface of the casing 110 is provided with an opening. The electric deoxidizing oxygen module 200 is formed at the opening, and is configured to consume oxygen inside the atmosphere of the fresh air conditioning space by the electrolytic reaction.

In the present embodiment, the opening is a rectangular opening for mounting the electrical de-oxygen module 200. The size of the electrical deaeration module 200 is adapted to the size of the opening so that it can completely close the opening, preventing gas exchange with the outside of the interior of the storage space.

As shown in FIG. 3, the electric de-oxygen module 200 includes a battery 2233, an anode plate 220, a cathode plate 230, and a proton exchange membrane 210 sandwiched between the cathode plate 230 and the anode plate 220. The battery can be placed on the storage container or outside the storage container. One side of the cathode plate 230 facing away from the proton exchange membrane 210 is at least partially exposed to the interior of the storage space, and one side of the anode plate 220 facing away from the proton exchange membrane 210 is at least partially exposed to the exterior of the storage space. That is, the electric de-oxygen module 200 has at least three layers of structure, from top to bottom, the anode plate 220, the proton exchange membrane 210 and the cathode plate 230, the anode plate 220 faces the outside of the storage space, and the cathode plate 220 faces the storage space. internal. Each layer structure is parallel to the plane of the opening, and each layer has the same size as the opening.

Preferably, the cathode plate 230 and the anode plate 220 are carbon electrode plates or platinum electrode plates, and a carbon electrode having a platinum plating layer on the surface is generally used. The edges of the anode plate 220 and the cathode plate 230 are each provided with a terminal, which is an anode plate terminal 221 and a cathode plate terminal 231, respectively, for connecting the anode and the cathode of the battery, respectively. The battery supplies electrons to the cathode plate 230 while the anode plate 220 provides electrons to the battery anode. The anode plate 220 is configured to electrolyze water vapor to produce protons and oxygen. The proton exchange membrane 210 is configured to transport protons from one side of the anode plate 220 to the side of the cathode plate 230. The cathode plate 230 is configured to react with oxygen to generate water. Among them, the chemical reaction formulas of the anode plate and the cathode plate are respectively:

Anode plate: 2H ₂ O→O ₂ +4H ⁺ +4e ^-

Cathode plate: O ₂ +4H ⁺ +4e ^- →2H ₂ O

Specifically, the anode of the battery is charged to the anode plate 220, and the water vapor outside the storage container 100 is electrolyzed on the anode plate 220 side to generate hydrogen ions and oxygen, and the oxygen is discharged to the outside of the storage space, and the hydrogen ions enter the proton exchange membrane 210. The cathode of the battery charges the cathode plate 230 to supply electrons to the cathode plate 230, and the hydrogen ions supplied from the proton exchange membrane 210 react with the oxygen inside the storage space to generate water, thereby consuming oxygen inside the storage space. .

The proton exchange membrane 210 includes a proton conductive polymer, a porous membrane, and at least one active ingredient. At least one active ingredient is dispersed in the proton conductive polymer, and the proton conductive polymer is taken in and filled in the pores of the porous membrane. The proton exchange membrane 210 functions to allow hydrogen ions to pass therethrough to transport the hydrogen ions generated by the reaction of the anode plate 220 to the cathode plate 230 for use by the cathode plate 230 for reaction.

Preferably, the proton conducting polymer is polystyrenesulfonic acid (PSSA) or carboxymethyl cellulose (CMC). The porous membrane is polytetrafluoroethylene (PTFE) or fluorinated ethylene propylene (FEP) or polyolefin film or polyperfluoroethylene propylene or glass fiber or ceramic fiber or polymer fiber; the active ingredient is silica gel suitable for electroosmotic flow, The concentration of dispersed silica gel does not exceed 5% of the mass of the proton exchange membrane.

In the embodiment, the electric de-oxygen module 200 further includes: two elastic plates 240 disposed on the outer sides of the anode plate 220 and the cathode plate 230 for tightening the anode plate 220, the proton exchange membrane 210, and the cathode plate. 230. The electric de-oxygen assembly 200 further includes a plurality of fastening screws. The positions of the two elastic plates 240, the anode plate 220, the proton exchange membrane 210 and the cathode plate 230 near the edge are respectively provided with a plurality of screw holes 201, each fastening screw The screw holes 201 in the same position of the plurality of components are sequentially passed through to fix and hold the multilayer components. The two elastic plates 240 have a plurality of elastic protrusions 284 on the sides facing the cathode plate 230 and the anode plate 220, and the positions of the elastic protrusions 284 on the two elastic plates 240 correspond to each other, that is, each elastic protrusion Each of the 284 can be mated with an elastic projection 284 on the other plate to join the extruded anode plate 220 and the cathode plate 230 for further tightening the proton exchange membrane 210. The middle portion of each of the elastic plates 240 is hollowed out or a plurality of air holes are uniformly formed to allow gas to pass therethrough.

In the present embodiment, the electric de-oxygen assembly 200 may further include: a diffusion layer 270, an activated carbon filter screen, and one or more gaskets 260. The diffusion layer 270 is located between the anode plate 220 and the proton exchange membrane 210 and between the cathode plate 230 and the proton exchange membrane 210. The diffusion layer 270 is made of a platinum-plated titanium mesh, which functions to facilitate conduction and allow water vapor to diffuse. An activated carbon filter screen is disposed on the side of the anode facing away from the proton exchange membrane 210 for purifying the gas entering the anode plate 220. At least one washer 260 may be located between the above-mentioned multilayer structures, and each of the washers 260 is an oblong thin ring having the same outer ring size as the cathode plate 230 and the anode plate 220. Each of the washers 260 is made of an elastic material to cushion the pressing force between adjacent layers.

The electric de-oxygen assembly 200 further includes a fan 250. The fan 250 described above may be a micro axial fan 250. The fan 250 is disposed on a side of the anode plate 220 facing away from the proton exchange membrane 210, and its rotating shaft is perpendicular to the anode plate 220 for blowing water vapor outside the storage container 100 toward the anode. The reactant of the anode plate of the electric deoxidizing module 200 of the present embodiment is water vapor. Therefore, the anode plate needs to continuously replenish moisture so that the electrolysis reaction can be continued. When the electric deactivating oxygen module 200 is turned on, the battery supplies power to the cathode plate 230 and the anode plate 220, respectively, and the fan 250 is turned on. When the fan 250 blows air to the anode plate 220, the water vapor in the air is blown together to the anode plate 220. To provide reactants to the anode plate 220. Since the internal temperature of the refrigerating and freezing apparatus is generally low, the storage compartment in the refrigerating and freezing apparatus has a relatively humid gas atmosphere, and the air contains a large amount of water vapor. Therefore, the indoor air in the storage compartment can supply sufficient reactants to the anode plate 220 without separately providing a water source or water delivery device for the electrical de-oxygen assembly 200.

In the present embodiment, the multilayer structure of the cathode plate 230, the anode plate 220, and the proton exchange membrane 210 is integrated into a housing case 280 to facilitate the overall installation or removal of the electric deaeration module 200. The accommodating case 280 described above may be completely embedded in the wall of the container of the storage container 100, or may be partially embedded.

As shown in FIG. 4, the X direction is defined as the longitudinal direction of the housing case 280, Y is the width direction, and Z is the height direction. The mounting box 280 is provided with a mounting opening for loading various components in the electric de-oxygen assembly 200. The mounting opening is rectangular and has a size corresponding to the size of the cathode plate 230 and the anode plate 220. The bottom surface of the accommodating case 280 is hollowed out to allow gas to pass therethrough. In the present embodiment, the bottom surface of the accommodating case 280 is also fixed with a cross holder 286 for supporting various components in the electric de-oxygen assembly 200.

One of the side walls of the housing case 280 is also provided with two through holes 285 to allow the anode plate terminal 221 and the cathode plate terminal 231 to extend. After the anode plate terminal 221 or the cathode plate terminal 231 protrudes from the accommodating case 280, it is connected to the anode and cathode of the external battery through a line connection.

The edge of the mounting opening also has a turn 282 that extends toward the exterior of the receiving case 280 for overlapping the receiving case 280 at the open edge of the case. When the accommodating case 280 is overlapped at the opening edge of the casing, the burr 282 can seal the gap between the casing and the accommodating case 280, preventing gas leakage inside the storage space. The flange 282 has at least two spaced apart notches 283, wherein the two notches 283 are positioned opposite the anode plate terminal 221 and the cathode plate terminal 231 to reveal the two terminals for convenient line connection, while the gap 283 is further The user can conveniently take the accommodating case 280 during the process of disassembling the electric detaching oxygen assembly 200.

As shown in FIG. 5, a plurality of claws 113 are disposed at the opening edge of the casing 110. The outer side of the accommodating case 280 is correspondingly provided with a plurality of protrusions 284, and the claws 113 catch the protrusions 284 to realize the accommodating case 280. installation. In the present embodiment, the outer surface of each side wall of the accommodating case 280 is provided with two protrusions 284, and the two protrusions 284 are spaced apart along the length or width direction of the accommodating case 280, and the two protrusions 284 are The same height position of the housing 280 is accommodated. Two claws 113 are respectively disposed on each edge of the opening of the casing 110. The two claws 113 are vertically disposed upward, and the ends thereof are used for clamping the protrusions 284 on the side wall of the accommodating case 280 for fixed accommodation. Box 280.

When assembling the electric de-oxygen module 200, components such as the cathode plate 230, the anode plate 220, the proton exchange membrane 210, the gasket 260, the elastic plate 240, and the diffusion layer 270 are arranged in accordance with the above-described positional relationship, and a multilayer structure is formed. Then, the multilayer structure is entirely placed inside the accommodating case 280. The layer arrangement direction of the multilayer structure coincides with the height direction of the housing case 280. In the present embodiment, the multilayer structure in the accommodating case 280 is, from top to bottom, a fan 250, an elastic plate 240, a gasket 260, an anode plate 220, a gasket 260, a diffusion layer 270, a proton exchange membrane 210, and a diffusion layer 270. , a gasket 260, a cathode plate 230, a gasket 260, and an elastic plate 240. When the electric de-oxygen module 200 is installed, the assembled electric de-oxygen module 200 is integrally inserted into the opening of the casing. When the flange of the accommodating case 280 abuts against the edge of the opening, the plurality of claws 113 just catch the accommodating case 280. The projections 284 on the side walls, so that the receiving box 280 is fixed, the electrical de-oxygen assembly 200 is installed. If the user does not need the oxygen scavenging function of the storage container, the accommodating case 280 can be taken out as a whole.

The storage container 100 of the present embodiment includes an electric de-oxygen module 200. The electric de-oxygen module 200 is used to consume oxygen in the air in the storage space, thereby obtaining a gas atmosphere rich in nitrogen and oxygen in the space to facilitate food preservation. The gas atmosphere reduces the oxygen content of the food (especially fruits and vegetables) by reducing the oxygen content in the storage space, while ensuring the basic respiration and preventing the food from performing anaerobic respiration, thereby achieving the purpose of long-term preservation of the food.

The embodiment of the invention further provides a refrigerating and freezing device 1 comprising: a casing 10, a door body 20 and the above storage container 100. A storage compartment of the refrigerating and freezing device is formed inside the casing. The storage container 100 is disposed inside the storage compartment.

In this embodiment, the refrigerating and freezing device may be a refrigerator, which in this embodiment is an air-cooled refrigerator, and the interior of the air-cooled refrigerator uses an air flow cycle to cool the storage compartment. The storage compartment of the refrigerator includes a refrigerating compartment and a freezing compartment below the refrigerating compartment. The storage container 100 may be a drawer. As shown in FIG. 6 and FIG. 7, the drawer is composed of a cylinder 111 and a drawing portion 112, and the electric de-energizing assembly 200 is disposed on the top surface of the cylinder 111. The drawer is detachably disposed at the bottom of the refrigerating compartment of the refrigerator, and a plurality of pairs of ribs are disposed on both sides of the interior of the refrigerating compartment chamber 410, wherein a pair of ribs located at the bottom of the refrigerating compartment are used to define the installation of the drawer position.

The electric de-oxygen module 200 is placed in the upper part of the drawer, and the battery for supplying power to the anode plate 220 and the cathode plate 230 can be disposed in the foam layer of the casing, thereby facilitating power supply from the casing to the electric de-oxygen module 200, and facilitating installation by the user. Disassembled. Since the drawer is disposed at the bottom of the refrigerating compartment, the electric de-oxygen module 200 is disposed at the top of the drawer to be in full contact with the air in the refrigerating compartment, and the air circulation of the air-cooled refrigerator is faster after the water vapor in the vicinity of the electric de-energizing component is consumed. Water vapor in other locations can be quickly replenished to keep the reaction fast. Therefore, providing the electric de-oxygen module 200 on the top of the drawer can improve the working efficiency of the electric de-oxygen module 200.

In the present embodiment, when the door body of the refrigerating and freezing apparatus is in the closed state, the electric de-energizing assembly 200 operates in accordance with a preset operation mode. The preset working mode is as follows: after the electric power supply connection of the battery is turned on, the power supply connection of the battery is continuously operated for a first preset time, and then the power supply connection of the battery is disconnected for a second preset time, and the above steps are intermittently started and stopped. jobs. The fan 250 and the electric de-oxygen assembly 200 operate in synchronization, that is, the fan 250 is turned on during the period in which the electric de-energizing assembly 200 continues to operate, and is turned off during the period in which the electric de-energizing assembly 200 is suspended.

As shown in FIGS. 8a and 8b, the above-described refrigerating and freezing apparatus further includes a door opening and closing detecting device 510, a storage container opening and closing detecting device 520, and a state detecting device 530. The door opening and closing detecting device 510 is disposed on the door body or the box body, and is configured to generate an opening trigger signal or a closing trigger signal of the door body when the door body is opened or closed. In this embodiment, the door body opening and closing detecting device The 510 may be a pressure sensor disposed at an edge of the door body, and the pressure sensor determines whether the door body is opened/closed by detecting the magnitude of the pressure between the door body and the case. The storage container opening and closing detecting device 520 is disposed on the storage container and configured to generate an opening trigger signal and a closing trigger signal of the storage container when the storage container is opened or closed. In the present embodiment, the storage container opening and closing detecting means 520 is a pressure sensor provided at the port of the drawer drawing portion, and the pressure sensor determines whether the door body is detected by detecting the magnitude of the pressure between the drawing portion 112 and the port of the drawer cylinder 111 Open close. The state detecting device 530 is electrically connected to the electric de-oxygen module 200 and configured to detect an operating state of the electric de-oxygen module 200. The working state of the electric de-oxidizing component 200 includes an operating state and a non-working state. The working state means that the battery is in communication with the anode plate 220 and the cathode plate 230, and the electric de-energizing component 200 is in an electric de-energized state; the non-operating state means that the connection line between the battery and the anode plate 220 and the cathode plate 230 is disconnected, and the electric discharge is released. The oxygen module 200 is in a state of suspending electrolysis. The state detecting means 530 can judge the operating state of the electric de-oxygen module 200 by detecting the connection state of the battery and the anode plate and the cathode plate. The door opening and closing detecting device 510, the storage container opening and closing detecting device 520, and the state detecting device 530 are all electrically connected to the electric de-oxygen module 200, and the electric de-oxygen module 200 adjusts its operation according to the transmission signals of the two pressure sensors. status.

The electric de-oxygen module 200 is configured to individually turn off the fan 250 when receiving the opening trigger signal of the door body and electrically de-energizing the oxygen assembly 200, that is, the electric de-oxygen module 200 normally de-energizes oxygen, but is disposed at the anode. The fan 250 on the side of the plate 220 is stopped to prevent the noise generated by the user from affecting the user when using the refrigerating and freezing device. In the case where the electric deactivating oxygen module 200 receives the opening trigger signal of the door body and is in the non-operating state, the disconnected state of the battery power supply connection and the closed state of the fan 250 are maintained until the door closing trigger signal is detected.

After detecting the door opening trigger signal, the electric deactivating oxygen module 200 is further configured to disconnect the battery power supply connection and suspend operation when receiving the opening trigger signal of the storage container 100. If the user opens the storage container 100, the sealed environment in the storage space is destroyed, and at this time, the electric de-energizing assembly 200 stops electrolysis to save energy. In the case where the electric deaeration module 200 does not receive the opening trigger signal of the storage container 100, the operation is continued while keeping the fan 250 closed.

The electric deaeration module 200 is further configured to: when receiving the shutdown trigger signal of the storage container and the closing trigger signal of the door body, reconnect the power supply connection of the battery and turn on the fan 250, and operate according to a preset working mode. .

The electric de-oxygen module 200 is further configured to: when receiving the closing trigger signal of the door body, re-open the fan 250 to control the deaerator assembly to operate according to a preset working mode.

9 is a schematic diagram of a deaeration control method of a refrigerating and freezing apparatus according to an embodiment of the present invention. The method is applicable to a refrigerating and freezing apparatus having an electric de-oxygen module 200, and the electric de-oxygen module 200 has a fan 250 that blows air to the anode plate. The control method performs the following steps in sequence:

Step S902 detects the door opening trigger signal of the refrigerating and freezing apparatus.

In step S904, it is determined whether the electric de-energizing component 200 is in an operating state. The operation of the electric de-oxygen module 200 in the working state means that the connection line between the battery and the anode plate and the cathode plate is turned on, and the oxygen-releasing oxygen component 200 is electrically oxidizing the oxygen in the storage space. In the present embodiment, whether or not the electric de-oxygen module 200 is in an operating state can be determined by whether or not the connection line between the battery and the anode plate and the cathode plate is turned on.

In step S906, if the result of the determination in step S904 is YES, the fan 250 is turned off separately. When the door of the refrigerating and freezing device is opened, if the electric deactivating oxygen assembly 200 is in an operating state, the fan 250 is also necessarily in an open state. The electric de-oxygen module 200 uses electricity to remove oxygen, and the electrolysis itself generates less noise, and the main noise source is the blower 250. When it is detected that the user opens the door body and the electric deactivating oxygen module 200 is running, the fan 250 of the electric deactivating oxygen component is separately turned off, and the electric deactivating oxygen module 200 continues to electrically release oxygen to prevent the user from using the refrigerating and freezing device, the fan 250 The noise generated has an impact on the user.

In step S908, if the result of the determination in step S904 is NO, the off state of the battery power supply connection and the off state of the fan 250 are maintained until the door closing trigger signal is detected. If the electric de-energizing assembly 200 is in an inoperative state, the fan 250 is also in a closed state, while maintaining the non-operating state of the electric de-energizing assembly 200 and the closed state of the fan 250 until it is detected that the door is again closed.

Figure 10 is a flow chart of a deaeration control method of a refrigerating and freezing apparatus according to an embodiment of the present invention. This method performs the following steps in sequence:

Step S1002 detects a door opening trigger signal of the refrigerating and freezing apparatus.

In step S1004, it is determined whether the electric de-energizing component 200 is in an operating state.

In step S1006, if the result of the determination in step S1004 is YES, the fan 250 is turned off separately. If the door of the refrigerating and freezing device is opened and the deaerator assembly is in operation, the fan 250 of the deaerator assembly is first turned off. In order to prevent the user from using the refrigerating and freezing device, the noise generated by the fan 250 affects the user.

In step S1008, if the result of the determination in step S1004 is negative, the disconnected state of the battery power supply connection and the closed state of the fan 250 are maintained until the door closing trigger signal is detected.

In step S1010, it is determined whether an opening trigger signal of the storage container is detected.

In step S1012, if the result of the determination in step S1010 is YES, the power supply connection of the battery is disconnected, and the electric de-energizing module 200 is suspended. If the user further opens the storage container, the connection between the battery and the cathode plate and the anode plate is disconnected, so that the electric de-oxygen module 200 stops the electric de-energization. When the user opens the storage container, the storage space is in communication with the external environment, and the internal gas atmosphere is destroyed. Even if the electric deactivating oxygen module 200 continues to work, the oxygen removal effect cannot be achieved. At this time, the battery and the cathode plate are disconnected in time. The anode plates are connected to save battery power while also increasing the service life of the electrical degassing assembly 200.

In step S1014, it is detected whether the shutdown trigger signal of the storage container and the shutdown trigger signal of the door body are detected. After the user uses the storage container, the storage container and the door body are sequentially closed, and the refrigerating and freezing device sequentially receives the closing trigger signal of the storage container and the closing trigger signal of the door body.

In step S1016, if the result of the determination in step S1014 is YES, the power supply connection of the battery is turned back on and the fan 250 is turned on. When it is confirmed that the user closes the door body, the electric deactivating oxygen assembly 200 is turned on again, and the fan 250 is turned on again.

In step S1018, if the result of the determination in step S1010 is NO, the electric de-energizing device 200 is continuously operated while the fan 250 is kept closed. If the user only opens the refrigerating and freezing device without opening the storage container, the electric deactivating oxygen module 200 performs electric de-energization when the fan 250 is turned off, thereby preventing the fan 250 from generating noise and enabling the inside of the storage space. Maintain a nitrogen-rich and oxygen-poor atmosphere.

In step S1020, it is determined whether a shutdown trigger signal of the storage container is detected. After the user finishes using it, the door will be closed, and the refrigerating and freezing device will receive the closing trigger signal of the door.

In step S1022, if the result of the determination in step S1020 is YES, the fan 250 is turned on again. When it is confirmed that the user closes the door body, the fan 250 is turned on again, and is kept in synchronization with the electric deactivating oxygen assembly 200.

In step S1024, the control electric de-oxygen module 200 operates in accordance with a preset working mode. When the door body is kept closed, the control electric de-oxygen module 200 is intermittently operated in accordance with the set operation mode. At the same time, the fan 250 is turned on when the electrical deaeration module 200 is in operation, and remains off when the electrical deaeration module 200 is not operating. Specifically, the preset working mode of the electric de-oxygen module 200 is: after the electric power supply connection of the battery is turned on for the first predetermined time, the power supply connection of the battery is disconnected for a second preset time, And cycle the above steps to start and stop intermittently. The first preset time and the second preset time may be determined according to the size of the storage space and the working efficiency of the electric de-oxygen module 200. In this embodiment, the first preset time may be set to 1 hour. The second preset time can be set to 5 hours.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

An oxygen removal control method for a refrigerating and freezing device, wherein the refrigerating and freezing device has a storage container therein, and the surface of the storage container is provided with an electric de-oxygen module, and the electric de-oxygen module comprises: an anode plate, a cathode plate, and a proton An exchange membrane, a battery, and a blower for blowing water vapor to the anode plate, the two poles of the battery being controllably coupled to the anode and cathode plates, the electrical de-oxygen module being configured to consume the The oxygen inside the storage container, the control method includes:

Detecting a door opening trigger signal of the refrigerating and freezing device;

Determining whether the electric de-oxygen component is in an operating state;

If yes, the fan is turned off separately;

If not, the disconnected state of the battery powered connection and the closed state of the fan are maintained until a door closing trigger signal is detected.
The oxygen removal control method according to claim 1, wherein the step of separately turning off the fan further comprises:

Determining whether an opening trigger signal of the storage container is detected;

If yes, disconnecting the power supply connection of the battery to suspend operation of the electric deactivating oxygen component;

If not, the electric deactivating oxygen component is continuously operated while keeping the fan closed.
The oxygen scavenging control method according to claim 2, wherein the step of disconnecting the power supply connection of the battery to suspend the operation of the electric deactivating oxygen component further comprises:

Determining whether a shutdown trigger signal of the storage container and a shutdown trigger signal of the door body are detected;

If yes, the power connection of the battery is turned back on and the fan is turned on, and the electric de-oxygen component is controlled to operate according to a preset working mode.
The oxygen removal control method according to claim 2, wherein after the step of controlling the continuous operation of the electric deaeration component while maintaining the fan off, the method further comprises:

Determining whether a shutdown trigger signal of the door body is detected;

If yes, the fan is turned on again, and the deaerator component is controlled to operate according to a preset working mode.
The oxygen removal control method according to claim 3 or 4, wherein the preset operation mode is set to:

After the electric de-oxygen component is turned on, the power supply connection of the battery is continuously operated for a first predetermined time, and then the power supply connection of the battery is disconnected for a second preset time, and the above steps are started and started intermittently;

The fan is turned on during a period in which the electric de-oxygen module continues to operate, and is turned off during a period in which the electric de-oxygen module is suspended.
A refrigerating and freezing device comprising:

a tank having an interior forming a storage compartment of the refrigerating and freezing device;

The door body is openably and closably disposed on the front side of the box body;

a storage container disposed in the storage compartment, the interior of which forms a storage space;

The electric de-oxygen module is detachably disposed on a surface of the storage container and configured to consume oxygen inside the modified atmosphere through an electrolytic reaction, and the electric de-oxygen module comprises:

An anode plate configured to electrolyze water vapor to generate hydrogen ions and oxygen;

a cathode plate configured to react with hydrogen ions and oxygen to form water;

a proton exchange membrane sandwiched between the cathode plate and the anode plate, configured to transport hydrogen ions from one side of the anode plate to one side of the cathode plate;

a fan disposed on a side of the anode plate facing away from the proton exchange membrane to blow water vapor outside the storage container toward the anode plate;

a door opening and closing detecting device is disposed on the door body or the box body, and configured to generate an opening trigger signal or a closing trigger signal of the door body when the door body is opened or closed;

a state detecting device electrically connected to the electric de-oxygen module, configured to detect an operating state of the electric de-oxygen component;

The electric de-oxygen module is electrically connected to the door opening and closing detecting device, and is configured to separately close the fan when receiving an opening trigger signal of the door body and the electric de-oxygen module is in an operating state. Holding the opening trigger signal of the door body and the electric deactivating oxygen component is in a non-operating state, maintaining an off state of the battery power connection and a closed state of the fan until the The closing trigger signal of the door.
The refrigerating and freezing apparatus according to claim 6, further comprising:

a storage container opening and closing detecting device disposed on the storage container, configured to generate an opening trigger signal or a closing trigger signal of the storage container when the storage container is opened or closed;

The electric de-oxygen module is electrically connected to the storage container opening and closing detecting device, and is further configured to: when receiving the opening trigger signal of the storage container, disconnect the power supply connection of the battery, and suspend the work. In the case where the opening trigger signal of the storage container is not received, the operation is continued while keeping the fan closed.
The refrigerating and freezing apparatus according to claim 7, wherein said electric deaeration module is further configured to:

In the case where the closing trigger signal of the storage container and the closing trigger signal of the door body are detected, the power supply connection of the battery is turned back on and the fan is turned on, and operates according to a preset working mode.
The refrigerating and freezing apparatus according to claim 7, wherein said electric deaeration module is further configured to:

In the case where the closing trigger signal of the door body is detected, the fan is turned on again and operates in accordance with a preset working mode.
A refrigerating and freezing apparatus according to claim 8 or 9, wherein said electric deaeration module is further configured to:

After the door body is kept closed, after the first preset time continues to work, the second preset time is suspended, and the above steps are started to start and stop intermittently; and the fan is controlled to continue working in the electric deactivating oxygen component. The period of time is turned on, and is turned off during the period in which the electric deactivating oxygen component is suspended.