CN216897972U - Electromagnetic preservation structure and refrigerator - Google Patents

Abstract

The application provides an electromagnetic preservation structure and a refrigerator, wherein the electromagnetic preservation structure comprises a shell, a plurality of drawers and a magnetic field generating device, wherein the shell is provided with an accommodating space and an opening communicated with the accommodating space; a plurality of drawers are arranged in the accommodating space, each drawer and the shell form a closed space, and each drawer can be inserted into the accommodating space from the opening or pulled out from the accommodating space and the opening; the magnetic field generating device is movably arranged on the shell, and the magnetic field generated by the magnetic field generating device can cover at least one closed space. The electromagnetic preservation structure can reduce energy consumption.

Description

Electromagnetic preservation structure and refrigerator

Technical Field

The application relates to the technical field of household appliances, in particular to an electromagnetic preservation structure and a refrigerator.

Background

In recent years, people's health consciousness is gradually increased, and the demand for food material freshness preservation is also increased. Refrigerators, as the most common household appliances for storing food materials, have different ways of keeping food fresh for different food materials. Wherein, the electromagnetic preservation technology is a novel technology applied to the refrigerator. Under the action of the magnetic field, water molecules in food are activated, the activity of various metabolic enzymes in the food and bacteria is reduced, the putrefaction and deterioration of the food are inhibited or slowed down, and the effect of keeping the food fresh is achieved.

However, in the existing magnetic field preservation technology, only the magnetic field generating device is fixed in the compartment of the refrigerator, and if the refrigerator has a plurality of compartments, a plurality of magnetic field generating devices need to be added, namely, one magnetic field generating device is arranged in each compartment, and the measures greatly increase the energy consumption.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an electromagnetism fresh-keeping structure and refrigerator, and this electromagnetism fresh-keeping structure can reduce energy consumption.

The embodiment of the application provides an electromagnetism fresh-keeping structure, includes:

a housing having an accommodating space and an opening communicating with the accommodating space;

a plurality of drawers, wherein the drawers are arranged in the accommodating space, each drawer and the shell form a closed space, and each drawer can be inserted into the accommodating space from the opening or pulled out from the accommodating space and the opening;

the magnetic field generating device is movably arranged on the shell, and the magnetic field generated by the magnetic field generating device can cover at least one closed space.

In some embodiments, the electromagnetic preservation structure further comprises a rail assembly disposed on the housing, and the magnetic field generating device is erected on the rail assembly and can move along the rail assembly.

In some embodiments, the electromagnetic preservation structure further comprises a driving mechanism connected with the magnetic field generation device, and the driving mechanism is configured to drive the magnetic field generation device to move.

In some embodiments, the electromagnetic fresh-keeping structure further includes a detection device and a processor, the processor is connected to the detection device and the driving mechanism, the detection device is disposed in the accommodating space, the detection device can detect the articles in each drawer, and the processor is configured to control the driving mechanism according to the detection condition of the detection device.

In some embodiments, the electromagnetic freshness structure further comprises a power supply component electrically connected to the magnetic field generating device, the power supply component configured to provide an electrical signal to the magnetic field generating device.

In some embodiments, the power supply assembly is a wireless power supply, the magnetic field generating device includes a charging port and an electromagnetic coil, the charging port is connected with the electromagnetic coil, and the wireless power supply supplies power to the electromagnetic coil through the charging port.

In some embodiments, the electromagnetic preservation structure further includes a plurality of limiting structures, the limiting structures are connected to the housing, and when the magnetic field generating device moves to abut against one of the limiting structures, the charging port is disposed opposite to the wireless power supply device.

In some embodiments, the magnetic field fresh-keeping structure further includes a magnetic conducting member, the magnetic conducting member is disposed on a side of the housing away from the magnetic field generating device, and the magnetic conducting member is configured to constrict the magnetic field.

In some embodiments, the electromagnetic freshness structure further comprises a spacer disposed between adjacent drawers, the spacer configured to block the magnetic field.

The embodiment of the application also provides a refrigerator which comprises the electromagnetic preservation structure.

The electromagnetic fresh-keeping structure that this application embodiment provided, this electromagnetic fresh-keeping structure includes the casing, a plurality of drawers and magnetic field generating device, this casing has accommodation space and opening, this a plurality of drawers set up in accommodation space, each drawer forms an enclosure space with the casing, each drawer can insert accommodation space or pull out from accommodation space and opening from the opening, this magnetic field generating device movably sets up on this casing, one of them enclosure space can be covered at least to the magnetic field that this magnetic field generating device produced. When the articles in one of the drawers need to be preserved by the magnetic field, the magnetic field generating device can be moved to the position corresponding to the drawer, so that the magnetic field generated by the magnetic field generating device acts on the articles needing to be preserved. The electromagnetic preservation structure can selectively carry out magnetic preservation according to preservation requirements, namely, the preservation effect of a plurality of drawers can be maintained only by a small amount of magnetic field generating devices. Therefore, the electromagnetic preservation structure can solve the problem of high energy consumption.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of a refrigerator provided in an embodiment of the present application.

Fig. 2 is a first structural schematic diagram of an electromagnetic preservation structure provided in the embodiment of the present application.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a schematic structural diagram of a second electromagnetic fresh-keeping structure provided in the embodiment of the present application.

Fig. 5 is a partially enlarged view of a portion a of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In recent years, people's health consciousness has been gradually increased, and the demand for food material freshness has been increased. Refrigerators, which are the most common household appliances for storing food materials, have different ways of keeping food fresh for different food materials. The preservation in the refrigerator is mainly realized by inhibiting the respiration in the sample at low temperature, weakening the metabolism and the enzyme activity of the sample and controlling the growth and the propagation of microorganisms. With the development of science and technology, the preservation technologies such as air-conditioning films and negative ions are applied to refrigerators, and the preservation technologies such as air-conditioning films and negative ions prolong the preservation time of food materials in a low-oxygen or microorganism-inhibiting mode. The novel fresh-keeping mode can prolong the storage period of food on the basis of low temperature and greatly keep the nutrient content of the food. However, the life of the air-conditioning film is limited, the fresh-keeping effect is restricted due to the limited proportion of the gas in the refrigerator, and the negative ions only inhibit microorganisms to prolong the fresh-keeping.

Wherein, the electromagnetic preservation technology is a new technology applied in the refrigerator. Under the action of the magnetic field, water molecules in food are activated, the activity of various metabolic enzymes in the food and bacteria is reduced, the putrefaction and the deterioration of the food are inhibited or slowed down, and the nutrition of the food in the refrigerator is prevented from losing in a multi-dimensional mode.

However, in the existing magnetic field preservation technology, only the magnetic field generating device is fixed in the compartment of the refrigerator, and if the refrigerator has a plurality of compartments, a plurality of magnetic field generating devices need to be added, namely, one magnetic field generating device is arranged in each compartment. These measures not only increase the energy consumption but also take up a lot of space within the refrigerator. Furthermore, since a plurality of magnetic field generating devices are added, it is inevitable to increase the cost of the refrigerator.

Therefore, the embodiment of the application provides an electromagnetic preservation structure and a refrigerator, and the electromagnetic preservation structure can reduce energy consumption and save space. The following detailed description will be made with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present application.

The electromagnetic preservation structure 10 provided by the embodiment of the present application can be applied to machines such as a refrigerator 100, an ice chest, and the like, and the refrigerator 100 can be a single-door refrigerator 100, a double-door refrigerator 100, or a triple-door refrigerator 100, as an example of the refrigerator 100. The refrigerator 100 has a refrigerating chamber or a freezing chamber, and the electromagnetic refreshing structure 10 may be disposed in the freezing chamber or the refrigerating chamber. It can be understood that the electromagnetic preservation structure 10 is used as a space separately set up in a refrigerating chamber or a freezing chamber, which not only can save energy, but also can effectively utilize the space in the refrigerator 100. If the electromagnetic preservation structure 10 is in a sealed state, the food materials in the electromagnetic preservation structure 10 and the food materials not placed in the electromagnetic preservation structure 10 can be prevented from being tainted with each other.

Referring to fig. 2 and fig. 3, fig. 2 is a first structural schematic diagram of an electromagnetic preservation structure according to an embodiment of the present application, and fig. 3 is an exploded schematic diagram of fig. 2.

The electromagnetic fresh-keeping structure 10 comprises a shell 11, a plurality of drawers 12 and a magnetic field generating device 13

The housing 11 has an accommodating space 111 and an opening communicating with the accommodating space 111, the plurality of drawers 12 are disposed in the accommodating space 111, each drawer 12 and the housing 11 form a closed space, and each drawer 12 can be inserted into the accommodating space 111 from the opening or pulled out from the accommodating space 111 and the opening. A plurality of drawers 12 may be provided for placement by a user of items, which may be items requiring cryopreservation. It will be appreciated that a plurality of drawers 12 may be provided for the user to place items in categories. The number of drawers 12 may be two, three or even more. For example, a plurality of drawers 12 may be a first drawer that may hold fresh fruit and a second drawer that may hold fresh fruit; taking the plurality of drawers 12 as a third drawer, a fourth drawer and a fifth drawer for example, the third drawer can be used for placing seafood, the fourth drawer can be used for placing raw meat and the fifth drawer can be used for placing cooked food. Therefore, the arrangement of the plurality of drawers 12 can be used for users to store articles in a classified manner, and mutual influence among the articles is avoided.

The drawer 12 may be made of a polymer material, such as polystyrene, polypropylene, polyvinyl chloride, polycarbonate, polyoxymethylene, polymethyl methacrylate, polyamide, or food grade silicone (high purity silicic acid polycondensate). Because the polymer material has the advantages of low temperature resistance and light weight, when the polymer material is applied to the drawer 12, the service life of the drawer 12 is long, and labor is saved when a user pulls the drawer 12.

More specifically, the color of the drawer 12 can be set to be transparent or non-transparent according to the requirement, when the color of the drawer 12 is transparent, a user can see through the drawer 12 to observe objects in a closed space when using the drawer 12, so that the time for the user to search the objects is saved, and meanwhile, the energy loss caused by the fact that the drawer 12 is opened and closed too frequently is avoided. When the color of the drawer 12 is non-transparent, such as white, black, blue, etc., the user can effectively protect the privacy of the user when using the drawer 12.

The magnetic field generating device 13 is movably arranged on the shell 11, and the magnetic field generated by the magnetic field generating device 13 can cover at least one closed space. It is understood that the magnetic field acts on the object placed in the closed space, and the magnetic field generating device 13 may generate a static magnetic field, an alternating magnetic field, or a pulsed magnetic field. The magnetic field generating means 13 may be arranged inside or outside the housing 11. The magnetic field generating device 13 can be moved on the housing 11 by manual or electric drive, so that the generated magnetic field acts on the articles in one of the enclosed spaces. Taking a plurality of drawers 12 as an example of a first drawer and a second drawer, the first drawer can be inserted into the accommodating space 111 from the opening or pulled out from the accommodating space 111 and the opening, and when the first drawer is inserted into the accommodating space 111, the first drawer and the housing 11 form a first closed space; the second drawer is arranged adjacent to the first drawer, the second drawer and the first housing 11 form a second closed space, the second drawer can be inserted into the accommodating space 111 from the opening or pulled out from the accommodating space 111 and the opening, and when the second drawer is inserted into the accommodating space 111, the second drawer and the housing 11 form a second closed space. If fresh fruits are placed in the first drawer and the second drawer is empty, the magnetic field generating device 13 is movably arranged at a position corresponding to the first drawer, so that the magnetic field generated by the magnetic field generating device 13 can cover the fresh fruits in the first drawer.

The electromagnetic preservation structure 10 provided by the embodiment of the application, the electromagnetic preservation structure 10 includes a housing 11, a plurality of drawers 12 and a magnetic field generating device 13, the housing 11 has an accommodating space 111 and an opening, the plurality of drawers 12 are disposed in the accommodating space 111, each drawer 12 and the housing 11 form a closed space, each drawer 12 can be inserted into the accommodating space 111 from the opening or pulled out from the accommodating space 111 and the opening, the magnetic field generating device 13 is movably disposed on the housing 11, and a magnetic field generated by the magnetic field generating device 13 can at least cover one of the closed spaces. When the article in one of the drawers 12 needs to be kept fresh by the magnetic field, the magnetic field generating device 13 can be moved to the position corresponding to the drawer 12, so that the magnetic field generated by the magnetic field generating device 13 acts on the article to be kept fresh. The electromagnetic preservation structure 10 can selectively perform magnetic preservation according to preservation requirements, that is, the preservation effect of a plurality of drawers 12 can be maintained only by a small number of magnetic field generation devices 13. Therefore, the electromagnetic preservation structure 10 can solve the problems of large energy consumption and large occupied space.

The magnetic field fresh-keeping structure further comprises a guide rail assembly 14, the guide rail assembly 14 is arranged on the shell 11, the magnetic field generating device 13 is erected on the guide rail assembly 14, and the magnetic field generating device 13 can move along the guide rail assembly 14. Wherein the rail assembly 14 may be disposed inside or outside the housing 11. For example, the guide rail assembly 14 is disposed outside the housing 11, and the magnetic field generating device 13 is mounted on the guide rail assembly 14 such that the magnetic field generating device 13 moves along the guide rail assembly 14 outside the housing 11. The guide rail assembly 14 may be composed of two parallel guide rails, and it can be understood that the two parallel guide rails can make the stress of the magnetic field generating device 13 uniform, and ensure that the magnetic field generating device 13 can operate stably.

The magnetic field fresh-keeping structure further comprises a driving mechanism 15, the driving mechanism 15 is connected with the magnetic field generating device 13, and the driving mechanism 15 is configured to drive the magnetic field generating device 13 to move. The driving mechanism 15 can drive the magnetic field generating device 13 to move on the guide rail assembly 14. The driving mechanism 15 may include a motor and a lead screw, the lead screw is connected to the magnetic field generating device 13, and the motor drives the lead screw and the lead screw drives the magnetic field generating device 13 to move along the guide rail assembly.

It is understood that the driving mechanism 15 may be other driving mechanisms, such as a cylinder, an air cylinder, etc., and the driving mechanism 15 is not particularly limited in this application.

The magnetic field fresh-keeping structure further comprises a detection device and a processor, wherein the processor is connected with the detection device and the driving mechanism 15, the detection device is arranged in the accommodating space 111, the detection device can detect the articles in each drawer 12, and the processor is configured to control the driving mechanism 15 according to the detection condition of the detection device.

Wherein, this detection device includes shoot ware and sensor. The shooting device is a camera, a video recorder and other instruments. For example, the detection device is a camera, the camera takes a picture of the articles in the accommodating space 111 to obtain the picture, the processor recognizes the picture, and if the presence of an article in one of the drawers 12 is detected, the processor controls the driving mechanism 15, and the driving mechanism 15 drives the magnetic field generation device 13 to move the position corresponding to the drawer 12 storing the article, so that the magnetic field generated by the magnetic field generation device 13 acts on the article in the drawer 12.

More specifically, if the first drawer is filled with medicines, the second drawer is filled with fruits and vegetables. For example, the detection device is a camera, the camera takes pictures of the articles in the accommodating space 111 to obtain the pictures, the processor recognizes the pictures, and if it is detected that the medicine is placed in the first drawer and the fruit and vegetable is placed in the second drawer, and the processor judges that the fruit and vegetable needs to be subjected to fresh-keeping treatment, the drive mechanism 15 is controlled, and the drive mechanism 15 drives the magnetic field generation device 13 to move the position corresponding to the second drawer, so that the magnetic field generated by the magnetic field generation device 13 acts on the articles in the second drawer. Furthermore, the processor may be connected to the magnetic field generating device 13 so as to control the type of magnetic field generated by the magnetic field generating device 13. For example, the processor controls the magnetic field generated by the magnetic field generating device 13 to be suitable for the preservation state of fruits and vegetables, such as a static magnetic field, and the ice crystals generated in the fruits and vegetables can be avoided by utilizing the static magnetic field for fresh preservation.

The sensor may be a weight sensor or an infrared sensor. For example, the sensor is a gravity sensor, the sensor detects the gravity of each drawer 12, and detects that an article exists in one of the drawers 12, the processor controls the driving mechanism 15, and the driving mechanism 15 drives the magnetic field delivery device to move the position corresponding to the drawer 12 for storing the article, so that the magnetic field generated by the magnetic field generating device 13 acts on the article in the drawer 12.

Referring to fig. 4 and fig. 5, fig. 4 is a second structural schematic diagram of an electromagnetic preservation structure according to an embodiment of the present application. Fig. 5 is a partially enlarged view of a portion a of fig. 4.

The electromagnetic fresh keeping structure 10 further comprises a power supply assembly 16, the power supply assembly 16 being electrically connected to the magnetic field generating means 13, the power supply assembly 16 being configured to provide an electrical signal to the magnetic field generating means 13.

It will be appreciated that the power supply assembly 16 inputs electrical signals to the electromagnetic coil 132 to adjust the magnetic field generated by the electromagnetic coil 132. For example, the electrical signal may be a constant voltage, modulating the magnetic field generated by the electromagnetic coil 132 to a static magnetic field; for another example, the electrical signal may be an alternating voltage, and the magnetic field generated by the electromagnetic coil 132 is adjusted to be an alternating magnetic field; for another example, the electrical signal may be a pulsed voltage that modulates the magnetic field generated by the electromagnetic coil 132 into a pulsed magnetic field.

The power supply assembly 16 may be a wireless power supply or a wired power supply. The magnetic field generating device 13 includes a charging port 131 and a solenoid 132, and the charging port 131 is connected to the solenoid 132. It is understood that the intensity of the magnetic field generated by the magnetic field generating device 13 can be adjusted by changing the current flowing through the electromagnetic coil 132, or by changing the number of turns of the electromagnetic coil 132. More specifically, the larger the value of the input current, the higher the magnetic field strength; the greater the number of turns of the energized coil, the higher the strength of the magnetic field. The material of the electromagnetic coil 132 may be copper, aluminum, or any other material capable of generating a magnetic field.

If the power supply module 16 is a wireless power supply, the wireless power supply supplies power to the electromagnetic coil 132 through the charging port 131. For example, the wireless power supply device is an RF (radio frequency) wireless charging apparatus.

The electromagnetic fresh-keeping structure 10 further comprises a plurality of limiting structures 17, the limiting structures 17 are connected with the shell 11, and when the magnetic field generating device 13 moves to abut against one limiting structure 17, the charging port 131 is arranged opposite to the wireless power supply device. The limiting structure 17 can be a limiting structure such as a limiting column. It can be understood that when the charging port 131 is aligned with the wireless power supply device, the charging effect is good.

For example, the electromagnetic fresh-keeping structure 10 includes a first drawer and a second drawer, and if fresh fruit is placed in the first drawer and the second drawer is empty, the magnetic field generating device 13 is movably disposed at a position corresponding to the first drawer, so that the magnetic field generated by the magnetic field generating device 13 can cover the fresh fruit in the first drawer. At this time, the magnetic field generating device 13 abuts against one limiting column, so that the charging port 131 of the magnetic field generating device 13 is arranged opposite to the wireless port, and the charging effect of the electromagnetic coil 132 is good. If the first drawer is empty and fresh fruit is placed in the second drawer, the magnetic field generating device 13 is movably disposed at a position corresponding to the second drawer, so that the magnetic field generated by the magnetic field generating device 13 can cover the fresh fruit in the second drawer. At this time, the magnetic field generating device 13 abuts against the other limiting column, so that the charging port 131 of the magnetic field generating device 13 is arranged opposite to the wireless port, and the charging effect of the electromagnetic coil 132 is good.

The electromagnetic fresh-keeping structure 10 further includes a magnetic conducting member 18, the magnetic conducting member 18 is disposed on a side of the housing 11 far away from the magnetic field generating device 13, and the magnetic conducting member 18 is configured to confine the magnetic field.

The magnetic conductive member 18 is connected to the housing 11, and the magnetic conductive member 18 is configured to confine magnetic lines of the magnetic field. It is understood that the magnetic conducting member 18 may be disposed on the bottom surface or multiple side surfaces of the housing 11, and the magnetic conducting member 18 may enhance the magnetic field strength and ensure the uniformity of the magnetic field. The magnetic conductive member 18 is made of ferromagnetic metal, such as iron, cobalt, nickel, etc. The ferromagnetic material can conduct magnetism and change the shape of magnetic lines when placed in a magnetic field. Wherein, after setting up magnetic conduction spare 18, magnetic field intensity is higher, and the magnetic line of force is more even, and when acting on the article in the enclosure, the effect that the magnetic field was kept fresh is better.

The magnetic conducting member 18 may be a plate-shaped structure, and has the same shape and size as one of the side surfaces or the bottom surface of the housing 11, and it can be understood that the magnetic conducting member 18 is covered and fixed on one of the side surfaces or the bottom surface, or the magnetic conducting member 18 may be connected to the other side surface or the bottom surface instead of one of the side surfaces or the bottom surface of the housing 11.

The electromagnetic fresh keeping structure 10 further includes a spacer 19, the spacer 19 being disposed between adjacent drawers 12, the spacer 19 being configured to block the magnetic field.

For example, the electromagnetic fresh-keeping structure 10 includes a first drawer and a second drawer, and if fresh fruit is placed in the first drawer and the second drawer 12 is empty, the magnetic field generating device 13 is movably disposed at a position corresponding to the first drawer, so that the magnetic field generated by the magnetic field generating device 13 can cover the fresh fruit in the first drawer. A spacer 19 is provided between the first drawer and the second drawer so that the magnetic field acting on the contents of the first drawer does not interfere with the second drawer.

The electromagnetic preservation structure 10 provided by the embodiment of the application, the electromagnetic preservation structure 10 includes a housing 11, a plurality of drawers 12 and a magnetic field generating device 13, the housing 11 has an accommodating space 111 and an opening, the plurality of drawers 12 are disposed in the accommodating space 111, each drawer 12 and the housing 11 form a closed space, each drawer 12 can be inserted into the accommodating space 111 from the opening or pulled out from the accommodating space 111 and the opening, the magnetic field generating device 13 is movably disposed on the housing 11, and a magnetic field generated by the magnetic field generating device 13 can at least cover one of the closed spaces. When the article in one drawer 12 of the plurality of drawers 12 needs to be kept fresh by the magnetic field, the magnetic field generating device 13 may be moved to a position corresponding to the drawer 12, so that the magnetic field generated by the magnetic field generating device 13 acts on the article to be kept fresh. The electromagnetic preservation structure 10 can selectively perform magnetic preservation according to preservation requirements, that is, the preservation effect of a plurality of drawers 12 can be maintained only by a small number of magnetic field generating devices 13. Therefore, the electromagnetic preservation structure 10 can solve the problems of large energy consumption and large occupied space.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

The electromagnetic preservation structure and the refrigerator provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. An electromagnetic preservation structure, comprising:

a housing having an accommodating space and an opening communicating with the accommodating space;

a plurality of drawers, wherein the drawers are arranged in the accommodating space, each drawer and the shell form a closed space, and each drawer can be inserted into the accommodating space from the opening or pulled out from the accommodating space and the opening;

the magnetic field generating device is movably arranged on the shell, and a magnetic field generated by the magnetic field generating device can cover at least one closed space.

2. The electromagnetic preservation structure of claim 1 further comprising a rail assembly, wherein the rail assembly is disposed on the housing, the magnetic field generating device is mounted on the rail assembly, and the magnetic field generating device is capable of moving along the rail assembly.

3. The electromagnetic preservation structure of claim 2 further comprising a drive mechanism coupled to the magnetic field generating device, the drive mechanism configured to drive the magnetic field generating device to move.

4. An electromagnetic freshness structure according to claim 3, further comprising a detection device and a processor, wherein the processor is connected to the detection device and the driving mechanism, the detection device is disposed in the receiving space, the detection device is capable of detecting the articles in each drawer, and the processor is configured to control the driving mechanism according to the detection condition of the detection device.

5. An electromagnetic freshness structure according to any one of claims 1 to 4, further comprising a power supply assembly electrically connected to the magnetic field generating means, the power supply assembly being configured to provide an electrical signal to the magnetic field generating means.

6. The electromagnetic freshness structure of claim 5, wherein the power supply assembly is a wireless power supply, the magnetic field generating device comprises a charging port and an electromagnetic coil, the charging port is connected with the electromagnetic coil, and the wireless power supply supplies power to the electromagnetic coil through the charging port.

7. The electromagnetic preservation structure of claim 6 further comprising a plurality of limiting structures connected to the housing, wherein when the magnetic field generating device moves to abut one of the limiting structures, the charging port is disposed opposite to the wireless power supply device.

8. The electromagnetic preservation structure according to any one of claims 1 to 4 further comprising a magnetic conductor disposed on a side of the housing away from the magnetic field generating device, the magnetic conductor configured to constrict the magnetic field.

9. An electromagnetic freshness structure according to any one of claims 1 to 4 further comprising a spacer disposed between adjacent drawers, said spacer being configured to block said magnetic field.

10. A refrigerator characterized by comprising an electromagnetic freshness retaining structure according to any one of claims 1 to 9.

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