CN117804116A - Magnetic field fresh-keeping refrigerator and control method thereof - Google Patents

Abstract

The invention provides a magnetic field fresh-keeping refrigerator and a control method thereof. The storage container comprises a magnetic conduction piece, an electric coil and a storage device. The magnetic conduction piece is provided with a horizontal section and a vertical section which are connected. The electrical coil includes at least a first electrical coil and a second electrical coil, the first electrical coil and the second electrical coil being wound in the horizontal section, and one of the first electrical coil and the second electrical coil being capable of being energized separately. The storage device is formed with the storing space, and the storing device cooperatees with magnetic conduction spare, and the horizontal segment covers the top surface or the bottom surface in storing space, and vertical section covers a side in storing space. The scheme of this application has avoided utilizing coil quantity to change the magnetic field and can lead to the too inhomogeneous problem of magnetic field distribution to a certain extent for it is possible to utilize coil quantity to change the magnetic field. Furthermore, by changing the magnetic field by using the number of coils, an electric control structure for changing the voltage is omitted, contributing to simplification of the structure.

Description

Magnetic field fresh-keeping refrigerator and control method thereof

Technical Field

The invention relates to the technical field of refrigeration and freezing, in particular to a magnetic field fresh-keeping refrigerator and a control method of the refrigerator.

Background

The refrigerator is used as a common household appliance, and can realize the function of low-temperature storage to prolong the storage time of food materials. In order to provide users with better use experience, the fresh-keeping function of the refrigerator is increasingly emphasized. Research shows that the magnetic field has a great influence on the fresh-keeping effect of the food materials. Specifically, by applying a magnetic field to meat food materials, the food materials can still maintain a fresh meat state at a negative temperature, so that the quality of the food materials is ensured on the basis of improving the storage time.

Among the means for generating the magnetic field are means for generating the magnetic field using an electric coil. In the case of using an electric coil, the magnetic field strength is generally changed by changing the voltage of the electric coil, and the electric control structure in this way is relatively complex.

Disclosure of Invention

An object of the present invention is to provide a magnetic field fresh-keeping refrigerator and a control method of the refrigerator capable of solving any of the above problems.

In particular, the present invention provides a magnetic field fresh-keeping refrigerator, comprising:

a case body formed with a storage compartment;

a storage container disposed in the storage compartment, comprising:

the magnetic conduction piece is provided with a horizontal section and a vertical section, and one end of the vertical section is connected with one end of the horizontal section;

the electric coil at least comprises a first electric coil and a second electric coil, wherein the first electric coil and the second electric coil are wound on the horizontal section in parallel along the extending direction of the horizontal section, and one of the first electric coil and the second electric coil can be independently electrified;

the storage device is formed with a storage space, the storage device is matched with the magnetic conduction piece, the horizontal section covers the top surface or the bottom surface of the storage space, and the vertical section covers one side surface of the storage space.

Optionally, the storage container includes a third coil, the third coil is disposed between the vertical section and a side surface of the storage device away from the vertical section, an axis of the third coil is perpendicular to an inner surface of the vertical section, and a projection of the third coil on a plane of the inner surface of the vertical section has an overlapping portion with the inner surface of the vertical section.

Optionally, the inner surface of the vertical section is provided with a protruding part facing the storage device, and the third coil is wound on the protruding part.

Optionally, the third coil is wound on the outside of the storage device.

Optionally, the horizontal segment is located at the bottom surface of the storage space, and/or,

the vertical section is located at the rear side of the storage space.

Optionally, a damper is disposed on a rear side wall of the storage compartment, a partition is disposed in the storage compartment, the partition is located between the damper and the storage container, a rear end of the partition abuts against the rear side wall of the storage compartment, and a front end of the partition extends to a front end of the storage container.

In another aspect of the present application, there is provided a control method of a refrigerator for use in any one of the above refrigerators, including:

acquiring a set storage gear of the refrigerator;

and controlling the first electric coil and/or the second electric coil to be electrified according to the set storage gear.

Optionally, the set storage gear includes a first storage gear and a second storage gear, where the first storage gear is opened separately corresponding to the first electric coil, and the second storage gear is opened corresponding to both the first electric coil and the second electric coil;

the step of controlling the first electric coil and/or the second electric coil to be energized according to the setting storage gear comprises the following steps:

acquiring the set storage gear as the first storage gear, and controlling the first electric coil to be electrified independently;

and acquiring the set storage gear as the second storage gear, and controlling the first electric coil and the second electric coil to be electrified.

Optionally, the step of obtaining the set storage gear of the refrigerator includes:

and detecting that the storage device is closed after being opened.

Optionally, the step of controlling the energizing of the first electrical coil and/or the second electrical coil according to the setting storage gear comprises:

acquiring the actual temperature of the storage space;

and judging whether the difference value between the actual temperature and the set temperature is larger than or equal to a preset threshold value, if so, controlling the third coil to be electrified, and controlling the air door to be opened so as to refrigerate the storage compartment.

According to the magnetic field fresh-keeping refrigerator, the first electric coil and the second electric coil are wound on the horizontal section in parallel along the extending direction of the horizontal section of the magnetic conduction piece, the horizontal section of the magnetic conduction piece covers the top surface or the bottom surface of the storage space, and the vertical section covers the side surface of the storage space. When one of the first and second electrical coils is energized, the magnetically permeable member is capable of guiding the magnetic field generated by the electrical coil such that the magnetic field is directed from the inner surface of the vertical section toward the end of the horizontal section remote from the vertical section. That is, the magnetic field can pass through the whole storage space as much as possible under the guidance of the magnetic conductive piece. Therefore, although the first electric coil or the second electric coil can only correspond to a part of the storage space, the magnetic conduction piece can enable the magnetic field of the first electric coil or the second electric coil which is independently opened to cover the storage space more uniformly. Therefore, the problem that the magnetic field is too unevenly distributed due to the fact that the magnetic field is changed by the number of coils is avoided to a certain extent, so that the magnetic field is possible to be changed by the number of coils. Furthermore, by changing the magnetic field by using the number of coils, an electric control structure for changing the voltage is omitted, contributing to simplification of the structure.

Further, the refrigerator of the invention can generate a magnetic field by arranging the third coil between the vertical section and the side surface of the storage device away from the vertical section, and energizing the third coil. The magnetic field of the third coil can be overlapped with the magnetic field of the electric coil, so that the magnetic field intensity in the storage space is improved.

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

Drawings

Some specific embodiments of the invention 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 invention;

fig. 2 is a schematic view of a storage container in a refrigerator according to an embodiment of the present invention;

FIG. 3 is a schematic view of magnetic fields when the first and second electric coils are energized in a refrigerator according to one embodiment of the invention;

FIG. 4 is a schematic view of magnetic fields when a first electric coil is separately energized in a refrigerator according to one embodiment of the present invention;

fig. 5 is a schematic view of a storage container in a refrigerator according to another embodiment of the present invention;

FIG. 6 is a schematic view of magnetic fields when first and second electric coils are energized in a refrigerator according to another embodiment of the invention;

FIG. 7 is a schematic view of magnetic fields when a first electric coil is separately energized in a refrigerator according to another embodiment of the present invention;

fig. 8 is a schematic view of a storage container in a refrigerator according to still another embodiment of the present invention;

fig. 9 is a schematic flowchart of a control method of a refrigerator according to an embodiment of the present invention;

fig. 10 is a schematic flowchart of a control method of a refrigerator according to another embodiment of the present invention.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention, and the some embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present invention, shall still fall within the scope of protection of the present invention.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," 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 invention 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 thus should not be construed as limiting the present invention.

As shown in fig. 1, in one embodiment, a refrigerator 1 includes a cabinet 10, a storage container 20, and a door 30. Wherein the case 10 is formed with a storage compartment 110. The storage container 20 is disposed in the storage compartment 110. The door 30 is pivotally connected to the cabinet 10 for closing the storage compartment 110.

As shown in fig. 1 and 2, the storage container 20 includes a magnetic conductive member 210, an electric coil 220, and a drawer 230 as a storage device. The magnetic conductor 210 has a horizontal section 211 and a vertical section 212. One end of the vertical section 212 is connected to one end of the horizontal section 211. The electrical coil 220 includes a first electrical coil and a second electrical coil. The first and second electric coils are wound in parallel on the horizontal section 211 along the extending direction of the horizontal section 211. And, the first electrical coil is capable of being energized alone. The drawer 230 is formed with a storage space 231. The drawer 230 is matched with the magnetic conductive member 210, and the horizontal section 211 covers the bottom surface of the storage space 231. The vertical section 212 covers the rear side of the storage space 231.

Referring to fig. 1 and 2, specifically, the horizontal section 211 and the vertical section 212 of the magnetic conductive member 210 are perpendicular to each other, so that the magnetic conductive member 210 has an "L" shape in cross-section. When the drawer 230 is in the closed position, its projection onto the plane of the inner surface of the horizontal section 211 (the side of the horizontal section 211 facing the drawer 230) falls inside the inner surface of the horizontal section 211. That is, the area of the inner surface of the horizontal section 211 is equal to or larger than the area of the top view of the drawer 230, thereby covering the bottom of the drawer 230. Likewise, the projection of the drawer 230 onto the plane of the inner surface of the vertical section 212 (the side of the vertical section 212 facing the drawer 230) falls inside the inner surface of the vertical section 212.

When the drawer 230 is in the closed position, the first and second electrical coils are located at the bottom of the drawer 230 and are distributed in the front-to-rear direction of the drawer 230. Specifically, the first electrical coil is positioned in front of the second electrical coil in the front-to-rear direction of the drawer 230. The electrical coil 220 includes two modes in which the first electrical coil is energized alone and the first electrical coil and the second electrical coil are energized.

It should be noted that the first electric coil and the second electric coil may be two separate coils. Or may be two parts of one coil. The magnetic field strengths of the first electric coil and the second electric coil may be equal or unequal.

Referring to fig. 1, further, the case 10 is provided with a refrigerating chamber 120, and an evaporator and a blower fan are provided in the refrigerating chamber 120. A damper 130 is provided at a rear sidewall of the storage compartment 110, and the damper 130 communicates the refrigerating chamber 120 and the storage compartment 110. Accordingly, the activated blower can blow cold in the refrigerating chamber 120 into the storage compartment 110 through the opened damper 130 to cool the storage compartment 110.

As shown in fig. 3 and 4, when a current is applied to the first and second electric coils, a magnetic field can be generated. As indicated by the arrow in fig. 3, the magnetic field is directed from the inner surface of the vertical section 212 to the end of the horizontal section 211 remote from the vertical section 212 under the guidance of the magnetic conductor 210. That is, the magnetic field can pass through the entire storage space 231 as much as possible under the guidance of the magnetic conductive member 210.

In the case where the first electric coil is individually supplied with current, as shown by an arrow in fig. 4, the magnetic field is directed from the inner surface of the vertical section 212 toward the end of the horizontal section 211 remote from the vertical section 212 under the guidance of the magnetic conductive member 210. So that the magnetic field generated by the first electric coil alone can also pass through the entire storage space 231 as much as possible under the guidance of the magnetic conductor 210. That is, although the first electric coil corresponds to only a portion of the storage space 231, the magnetic field of the first electric coil can cover the storage space 231 more uniformly under the guidance of the magnetic conductive member 210.

Therefore, by providing the magnetic conductive member 210 having the horizontal section 211 and the vertical section 212 and winding the electric coil 220 around the horizontal section 211, the problem that the magnetic field distribution is too uneven due to the change of the magnetic field by the number of coils is avoided to some extent, so that it is possible to change the magnetic field by the number of coils. Furthermore, by changing the magnetic field by using the number of coils, an electric control structure for changing the voltage is omitted, contributing to simplification of the structure.

It should be noted that the electric coil 220 may also include three modes of separately energizing the first electric coil, separately energizing the second electric coil, and energizing both the first electric coil and the second electric coil.

It should be noted that in other embodiments of the present application, the electric coil 220 may also include three or more coils.

In addition, the horizontal section 211 of the magnetic conductive member 210 covers the bottom surface of the storage space 231, so that the electric coil 220 is closer to the food material in the storage space 231, which is helpful for improving the effective utilization rate of the magnetic field. By having the vertical section 212 of the magnetic conductive member 210 cover the rear side of the storage space 231, the vertical section 212 is hidden at the rear side of the drawer 230, improving the aesthetic appearance.

It should also be noted that in other embodiments of the present application, the horizontal section 211 may also cover the top surface of the drawer. Alternatively, the vertical section 212 may cover the left or right side of the drawer 230.

As shown in fig. 5, in one embodiment, the storage container 20 further includes a third coil 240, the third coil 230 being disposed between the vertical section 212 and a side of the drawer 230 remote from the vertical section 212. The axis of the third coil 240 is perpendicular to the inner surface of the vertical section 212. And the projection of the third coil 240 on the plane of the inner surface of the vertical section 212 has an overlapping portion with the inner surface.

Specifically, the inner surface of the vertical section 212 is provided with a boss 213 facing the drawer 230. The third coil 240 is wound around the boss 213.

Referring to fig. 6 and 7, when the electric coil 220 and the third coil 240 are energized, the third coil 240 can generate a magnetic field that overlaps with the magnetic field of the electric coil 220, thereby increasing the magnetic field strength within the drawer 230. When the first and third coils 240 are energized, the third coil 240 is able to generate a magnetic field that overlaps with the magnetic field of the first electric coil, thereby increasing the magnetic field strength within the drawer 230. In addition, the magnetic fields of the third coil 240 and the first electric coil complement each other, so that the magnetic field in the drawer 230 can be more uniform.

That is, under the condition that the magnetic field is changed by adjusting the number of coils, the third coil 240 can increase the intensity again on the basis of the magnetic field intensity corresponding to each gear, so that the temperature of the food material which can maintain the fresh meat state is further reduced. When the storage space 231 is opened and closed in the use process, the temperature is increased more, and the third coil 240 is controlled to be electrified, so that the food material is kept in a fresh meat state at a temperature lower than the set temperature. Thereby playing a role of safety and avoiding the food materials stored in the storage space 231 before freezing when the temperature of the storage space 231 drops to the set temperature.

As shown in fig. 8, in other embodiments of the present application, the third coil 240 is wound on the outside of the drawer 230. Specifically, the storage container 20 includes a housing having a placement cavity formed therein. The drawer 230 is disposed in the placement cavity of the housing. The third coil 240 surrounds the upper, lower, left and right sides of the case so as to be wound outside the drawer 230.

It should be noted that, when the storage device adopts a box-shaped structure with an open front end, the third coil 240 may be directly wound on the outer side of the storage device.

Referring back to fig. 1, a partition 140 is provided in the storage compartment 110. The partition 140 is located between the damper 130 and the storage container 20, and the rear end of the partition 140 abuts against the rear sidewall of the storage compartment 110, with the front end extending to the front end of the storage container 20.

Accordingly, during cooling of the storage compartment 110, cool air entering the storage compartment 110 from the damper 130 can be blown toward the front side of the storage container 20 along the partition 140 and then flows downward from the front side of the storage container 20 to the bottom of the storage container 20. And then flows from the bottom of the storage container 20 and returns to the refrigeration cavity 120 from the return air inlet to form a cycle. Helping cold air to flow through the whole storage compartment 110 and improving the cooling effect.

As shown in fig. 9, in one embodiment, a control method of a refrigerator may generally include:

step S901, a setting storage gear of a refrigerator is acquired.

Step S903, controlling the first electric coil and/or the second electric coil to be energized according to the set storage gear.

Specifically, the set storage gear includes a first storage gear and a second storage gear. The first storage gear corresponds to the first electric coil being independently turned on, and the second storage gear corresponds to both the first magnetic field strength and the second electric coil being turned on. Therefore, after the set storage gear is acquired as the first storage gear, the first electric coil is controlled to be electrified independently. And after the setting storage gear is acquired as the second storage gear, controlling the first electric coil and the second electric coil to be electrified.

In the scheme of the application, through setting up the magnetic conduction piece 210 that has horizontal section 211 and vertical section 212 to twine electric coil 220 in horizontal section 211, avoided to a certain extent and utilized coil quantity to change the magnetic field and can lead to the too inhomogeneous problem of magnetic field distribution, make it possible to utilize coil quantity to change the magnetic field. Furthermore, the different coils are electrified in different storage gears by enabling the different coils to correspond to different storage gears, so that an electric control structure for changing voltage is omitted, and the structure is facilitated to be simplified.

It should be noted that, in the case where the electric coil 220 includes three or more coils, the setting storage gear may be increased accordingly.

As shown in fig. 10, in one embodiment, a control method of a refrigerator may generally include:

in step S1001, the storage device is detected to be turned on and then turned off. Specifically, an opening and closing sensor for detecting whether the drawer 230 is opened is provided in the refrigerator. The opening and closing sensor may be an infrared sensor, which is located at the front side of the drawer 230, and shields the infrared sensor when the drawer 230 is opened, thereby detecting that the drawer 230 is opened. After the drawer 230 is closed, the infrared sensor is no longer shielded, thereby detecting that the drawer 230 is closed. And thus it is determined that the drawer 230 is closed after being opened by a signal change of the infrared sensor.

In step S1003, a setting storage gear of the refrigerator is acquired.

Step S1005, controlling the first electric coil and/or the second electric coil to be energized according to the set storage gear.

In step S1007, the actual temperature of the storage space is obtained.

Specifically, a temperature sensor is provided in the drawer 230 for detecting the temperature in the storage space 231.

Step S1009, determining whether the difference between the actual temperature and the set temperature is greater than or equal to the preset threshold, if yes, executing step S1011. If not, step S1013 is executed.

And S1011, controlling the third coil to be electrified and controlling the air door to be opened so as to refrigerate the storage compartment.

In step S1013, a conventional cooling process is performed.

Specifically, if the difference between the actual temperature and the set temperature is greater than or equal to the preset threshold, it indicates that new food with a higher temperature is placed in the drawer 230, or the drawer 230 is opened for a longer time, which results in a more increased temperature in the storage space 231. However, since the cooling amount of the food material stored in the drawer 230 is relatively slow, a part of the cooling amount is also provided. At this time, by controlling the energization of the third coil 240, the magnetic field strength in the drawer 230 can be increased and the magnetic field uniformity can be improved. Further, the food material can be kept fresh at a temperature lower than the set temperature. Thereby playing a role of safety and avoiding the food materials stored in the storage space 231 before freezing when the temperature of the storage space 231 drops to the set temperature. In addition, the partition 140 prevents cold air from directly blowing the food materials in the drawer 230, thereby avoiding the direct absorption of cold energy by the food materials and further avoiding freezing of the food materials before eating when the temperature drops to the set temperature.

After the temperature in the storage space 231 is lowered to the set temperature, the third coil 240 is turned off, and a conventional cooling process is performed. I.e. the electric coil in the set storage gear is kept energized to perform refrigeration at the on-off point temperature at the set temperature.

And if the difference value between the actual temperature and the set temperature is greater than or equal to a preset threshold value, executing a conventional refrigeration process.

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

Claims (10)

1. A magnetic field fresh keeping refrigerator comprising:

a case body formed with a storage compartment;

a storage container disposed in the storage compartment, comprising:

the magnetic conduction piece is provided with a horizontal section and a vertical section, and one end of the vertical section is connected with one end of the horizontal section;

the electric coil at least comprises a first electric coil and a second electric coil, wherein the first electric coil and the second electric coil are wound on the horizontal section in parallel along the extending direction of the horizontal section, and one of the first electric coil and the second electric coil can be independently electrified;

the storage device is formed with a storage space, the storage device is matched with the magnetic conduction piece, the horizontal section covers the top surface or the bottom surface of the storage space, and the vertical section covers one side surface of the storage space.

2. The magnetic field fresh-keeping refrigerator of claim 1, wherein,

the storage container comprises a third coil, the third coil is arranged between the vertical section and the side surface of the storage device, which is far away from the vertical section, the axis of the third coil is perpendicular to the inner surface of the vertical section, and the projection of the third coil on the plane of the inner surface of the vertical section is provided with an overlapping part with the inner surface of the vertical section.

3. The magnetic field fresh-keeping refrigerator of claim 2, wherein,

the inner surface of the vertical section is provided with a protruding portion facing the storage device, and the third coil is wound on the protruding portion.

4. The magnetic field fresh-keeping refrigerator of claim 2, wherein,

the third coil is wound on the outer side of the storage device.

5. The magnetic field fresh-keeping refrigerator of claim 1, wherein,

the horizontal segment is positioned at the bottom surface of the storage space, and/or,

the vertical section is located at the rear side of the storage space.

6. The magnetic field fresh-keeping refrigerator of claim 1, wherein,

the back side wall of the storage room is provided with an air door, the storage room is internally provided with a baffle plate, the baffle plate is positioned between the air door and the storage container, the back end of the baffle plate is in butt joint with the back side wall of the storage room, and the front end of the baffle plate extends to the front end of the storage container.

7. A control method of a refrigerator for a magnetic field fresh-keeping refrigerator according to any one of claims 1 to 6, comprising:

acquiring a set storage gear of the refrigerator;

and controlling the first electric coil and/or the second electric coil to be electrified according to the set storage gear.

8. The control method of a refrigerator according to claim 7, wherein the set storage gear includes a first storage gear and a second storage gear, the first storage gear being individually turned on corresponding to the first electric coil, the second storage gear being turned on corresponding to both the first electric coil and the second electric coil;

the step of controlling the first electric coil and/or the second electric coil to be energized according to the setting storage gear comprises the following steps:

acquiring the set storage gear as the first storage gear, and controlling the first electric coil to be electrified independently;

and acquiring the set storage gear as the second storage gear, and controlling the first electric coil and the second electric coil to be electrified.

9. The control method of a refrigerator according to claim 7, wherein,

the step of obtaining the set storage gear of the refrigerator comprises the following steps:

and detecting that the storage device is closed after being opened.

10. The control method of a refrigerator according to claim 9, wherein,

the step of controlling the energizing of the first electric coil and/or the second electric coil according to the set storage gear comprises:

acquiring the actual temperature of the storage space;

and judging whether the difference value between the actual temperature and the set temperature is larger than or equal to a preset threshold value, if so, controlling the third coil to be electrified, and controlling the air door to be opened so as to refrigerate the storage compartment.