A magnetic field fresh-keeping refrigerator and a control method of the refrigerator

Abstract

The application provides a magnetic field fresh-keeping refrigerator and a control method of the refrigerator. The refrigerator comprises a cabinet with a storage compartment and a storage container arranged in the storage compartment. The storage container comprises a magnetic conducting piece, an electric coil and a storage device. The magnetic conducting piece has a horizontal section and a vertical section connected with each other. The electric coil comprises at least a first electric coil and a second electric coil. The first electric coil and the second electric coil are wound around the horizontal section, and one of the first electric coil and the second electric coil can be powered independently. The storage device is formed with a storage space. The storage device is matched with the magnetic conducting 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. The scheme of the application avoids the problem that the change of the magnetic field caused by the number of coils results in the uneven distribution of the magnetic field to a certain extent, so that the change of the magnetic field by the number of coils is possible. Furthermore, by changing the magnetic field by the number of coils, the electric control structure for changing the voltage is omitted, which is helpful to simplify the structure.

Description

Technical Field

[0001] This invention relates to the field of refrigeration and freezing technology, and in particular to a magnetic field preservation refrigerator and a refrigerator control method. Background Technology

[0002] Refrigerators, as a common household appliance, enable low-temperature storage to extend the shelf life of food. To provide users with a better experience, the preservation function of refrigerators is receiving increasing attention. Research has found that magnetic fields have a significant impact on the preservation effect of food. Specifically, by applying a magnetic field to meat, it is possible to maintain its freshness even at sub-zero temperatures, thus extending storage time while preserving the quality of the food.

[0003] One method of generating a magnetic field is using an electric coil. When using an electric coil, the magnetic field strength is typically changed by altering the voltage across the coil; however, this method involves a relatively complex electronic control structure. Summary of the Invention

[0004] One object of the present invention is to provide a magnetic field preservation refrigerator and a refrigerator control method that can solve any of the above problems.

[0005] Specifically, the present invention provides a magnetic field preservation refrigerator, comprising:

[0006] The container has storage compartments.

[0007] A storage container, disposed in the storage room, comprising:

[0008] A magnetic conductive element having a horizontal section and a vertical section, one end of the vertical section being connected to one end of the horizontal section;

[0009] An electric coil, comprising at least a first electric coil and a second electric coil, wherein the first electric coil and the second electric coil are wound side by side on the horizontal segment along the extension direction of the horizontal segment, and one of the first electric coil and the second electric coil is energized independently;

[0010] A storage device having a storage space, the storage device cooperating with the magnetic conductive element, the horizontal section covering the top or bottom surface of the storage space, and the vertical section covering one side of the storage space.

[0011] Optionally, the storage container includes a third coil disposed between the vertical section and the side of the storage device near the vertical section, the axis of the third coil being perpendicular to the inner surface of the vertical section, and the projection of the third coil onto the plane containing the inner surface of the vertical section overlapping the inner surface of the vertical section.

[0012] Optionally, the inner surface of the vertical section is provided with a protrusion facing the storage device, and the third coil is wound around the protrusion.

[0013] Optionally, the third coil is wound around the outside of the storage device.

[0014] Optionally, the horizontal segment is located on the bottom surface of the storage space, and / or,

[0015] The vertical section is located at the rear of the storage space.

[0016] Optionally, the storage room has a damper on its rear side wall, a partition is provided inside the storage room, the partition is located between the damper and the storage container, and the rear end of the partition abuts against the rear side wall of the storage room, and the front end of the partition extends to the front end of the storage container.

[0017] In another aspect of this application, a method for controlling a refrigerator is provided, which is used in any of the refrigerators described above, comprising:

[0018] Get the refrigerator's set storage level;

[0019] The first and / or second coils are energized according to the set storage level.

[0020] Optionally, the set storage level includes a first storage level and a second storage level, wherein the first storage level corresponds to the first coil being turned on alone, and the second storage level corresponds to both the first coil and the second coil being turned on.

[0021] The step of controlling the first coil and / or the second coil to be energized according to the set storage level includes:

[0022] The set storage level is obtained as the first storage level, and the first coil is controlled to be energized separately;

[0023] The set storage level is determined to be the second storage level, and the first and second coils are energized.

[0024] Optionally, the step of obtaining the refrigerator's set storage level includes, before:

[0025] The storage device is closed after it is detected that it is open.

[0026] Optionally, the step of controlling the first coil and / or the second coil to be energized according to the set storage level includes:

[0027] Obtain the actual temperature of the storage space;

[0028] Determine whether the difference between the actual temperature and the set temperature is greater than or equal to a preset threshold. If so, control the third coil to be energized and control the damper to open in order to cool the storage room.

[0029] The magnetic field preservation refrigerator of the present invention involves winding a first and a second electric coil side-by-side along the horizontal extension direction of a magnetically conductive component. The horizontal section of the magnetically conductive component covers the top or bottom surface of the storage space, while the vertical section covers the sides of the storage space. When one of the first or second electric coils is energized, the magnetically conductive component guides the magnetic field generated by the coil, directing the magnetic field from the inner surface of the vertical section towards the end of the horizontal section away from the vertical section. In other words, the magnetic field can penetrate the entire storage space as much as possible under the guidance of the magnetically conductive component. Therefore, although the first or second electric coil only corresponds to a portion of the storage space, the magnetically conductive component allows the magnetic field of the individually activated first or second electric coil to cover the storage space relatively evenly. This avoids, to some extent, the problem of uneven magnetic field distribution caused by changing the number of coils, making it possible to change the magnetic field by changing the number of coils. Furthermore, by changing the magnetic field by changing the number of coils, the electronic control structure for changing the voltage is eliminated, simplifying the structure.

[0030] Furthermore, the refrigerator of the present invention provides a third coil between the vertical section and the side of the storage device near the vertical section. The energized third coil generates a magnetic field. The magnetic field of the third coil can be superimposed on the magnetic field of the electric coil, thereby increasing the magnetic field strength within the storage space.

[0031] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0032] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0033] Figure 1 This is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of a storage container in a refrigerator according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the magnetic field when the first and second coils in a refrigerator are energized according to an embodiment of the present invention;

[0036] Figure 4This is a schematic diagram of the magnetic field of a refrigerator when the first coil is energized alone, according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of a storage container in a refrigerator according to another embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the magnetic field when the first and second coils in a refrigerator are energized according to another embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of the magnetic field of a refrigerator when the first coil is energized alone, according to another embodiment of the present invention;

[0040] Figure 8 This is a schematic diagram of a storage container in a refrigerator according to yet another embodiment of the present invention;

[0041] Figure 9 This is a schematic flowchart of a refrigerator control method according to an embodiment of the present invention;

[0042] Figure 10 This is a schematic flowchart of a refrigerator control method according to another embodiment of the present invention. Detailed Implementation

[0043] Those skilled in the art should understand that the embodiments described below are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. These partial embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0044] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] like Figure 1 As shown, in one embodiment, the refrigerator 1 includes a cabinet 10, a storage container 20, and a door 30. The cabinet 10 forms 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.

[0046] like Figure 1 and Figure 2 As shown, the storage container 20 includes a magnetic conductor 210, an electric coil 220, and a drawer 230 serving 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 electric coil 220 includes a first electric coil and a second electric coil. The first electric coil and the second electric coil are wound side-by-side around the horizontal section 211 along its extension direction. The first electric coil can be energized independently. The drawer 230 forms a storage space 231. The drawer 230 cooperates with the magnetic conductor 210, with the horizontal section 211 covering the bottom surface of the storage space 231. The vertical section 212 covers the rear side of the storage space 231.

[0047] Reference Figure 1 and Figure 2 As shown, specifically, the horizontal segment 211 and the vertical segment 212 of the magnetic conductor 210 are perpendicular to each other, thus making the cross-sectional shape of the magnetic conductor 210 "L". When the drawer 230 is in the closed position, its projection onto the plane containing the inner surface of the horizontal segment 211 (the side of the horizontal segment 211 facing the drawer 230) falls inside the inner surface of the horizontal segment 211. That is, the area of ​​the inner surface of the horizontal segment 211 is greater than or equal to the area of ​​the top view of the drawer 230, thus covering the bottom of the drawer 230. Similarly, the projection of the drawer 230 onto the plane containing the inner surface of the vertical segment 212 (the side of the vertical segment 212 facing the drawer 230) falls inside the inner surface of the vertical segment 212.

[0048] When drawer 230 is in the closed position, the first and second coils are located at the bottom of drawer 230 and are distributed along the front-to-back direction of drawer 230. Specifically, along the front-to-back direction of drawer 230, the first coil is located in front of the second coil. The coil 220 includes two modes: the first coil is energized alone, and both the first and second coils are energized.

[0049] It should be noted that the first and second coils can be two separate coils, or two parts of a single coil. Furthermore, the magnetic field strengths of the first and second coils can be equal or unequal.

[0050] Reference Figure 1 As shown, the housing 10 further includes a refrigeration chamber 120, which houses an evaporator and a fan. A damper 130 is located on the rear wall of the storage chamber 110, connecting the refrigeration chamber 120 and the storage chamber 110. Therefore, when the fan is activated, it can blow the cold air from the refrigeration chamber 120 into the storage chamber 110 through the open damper 130, thereby cooling the storage chamber 110.

[0051] Combination Figure 3 and Figure 4 As shown, when current is passed through the first and second coils, a magnetic field can be generated. Figure 3 As indicated by the middle arrow, guided by the magnetic conductor 210, the magnetic field is directed from the inner surface of the vertical section 212 towards the end of the horizontal section 211 away from the vertical section 212. In other words, the magnetic field can pass through the entire storage space 231 as much as possible under the guidance of the magnetic conductor 210.

[0052] When current is applied to the first coil alone, such as Figure 4 As indicated by the middle arrow, guided by the magnetic conductor 210, the magnetic field is directed from the inner surface of the vertical section 212 towards the end of the horizontal section 211 away from the vertical section 212. This allows the magnetic field generated by the first coil to penetrate the entire storage space 231 as much as possible under the guidance of the magnetic conductor 210. In other words, although the first coil only corresponds to a part of the storage space 231, its magnetic field can cover the storage space 231 relatively evenly under the guidance of the magnetic conductor 210.

[0053] Therefore, by setting up a magnetically conductive element 210 with a horizontal segment 211 and a vertical segment 212, and winding an electric coil 220 around the horizontal segment 211, the problem of excessively uneven magnetic field distribution caused by changing the magnetic field using the number of coils is avoided to some extent, making it possible to change the magnetic field using the number of coils. Furthermore, by changing the magnetic field using the number of coils, the electronic control structure for changing the voltage is eliminated, which helps to simplify the structure.

[0054] It should be noted that the coil 220 may also include three modes: the first coil is energized alone, the second coil is energized alone, and both the first coil and the second coil are energized.

[0055] It should be noted that in some other embodiments of this application, the coil 220 may also include three or more coils.

[0056] Furthermore, by having the horizontal segment 211 of the magnetic conductor 210 cover the bottom surface of the storage space 231, the coil 220 is brought closer to the food inside the storage space 231, which helps to improve the effective utilization rate of the magnetic field. By having the vertical segment 212 of the magnetic conductor 210 cover the back side of the storage space 231, the vertical segment 212 is hidden behind the drawer 230, improving aesthetics.

[0057] It should also be noted that in some other embodiments of this application, the horizontal segment 211 may also cover the top surface of the drawer. Alternatively, the vertical segment 212 may also cover the left or right side of the drawer 230.

[0058] like Figure 5As shown, in one embodiment, the storage container 20 further includes a third coil 240, which is disposed between the vertical section 212 and the side of the drawer 230 near the vertical section 212. The axis of the third coil 240 is perpendicular to the inner surface of the vertical section 212. Furthermore, the projection of the third coil 240 onto the plane containing the inner surface of the vertical section 212 overlaps with the inner surface.

[0059] Specifically, the inner surface of the vertical section 212 is provided with a protrusion 213 facing the drawer 230. The third coil 240 is wound around the protrusion 213.

[0060] Reference Figure 6 and Figure 7 As shown, when the first coil 220 and the third coil 240 are energized, the third coil 240 generates a magnetic field that superimposes on the magnetic field of the first coil 220, thereby increasing the magnetic field strength inside the drawer 230. Similarly, when the first coil and the third coil 240 are energized, the third coil 240 generates a magnetic field that superimposes on the magnetic field of the first coil, further increasing the magnetic field strength inside the drawer 230. Furthermore, the magnetic fields of the third coil 240 and the first coil complement each other, making the magnetic field inside the drawer 230 more uniform.

[0061] In other words, by adjusting the number of coils to change the magnetic field, the third coil 240 can further increase the magnetic field strength based on the strength corresponding to each setting, thereby further lowering the temperature to maintain the freshness of the food. When the storage space 231 is opened and closed repeatedly during use, causing a significant temperature rise, the third coil 240 is energized to maintain the freshness of the food at a temperature lower than the set temperature. This serves as a safety measure, preventing previously stored food in the storage space 231 from freezing when the temperature in the storage space 231 drops to the set temperature.

[0062] like Figure 8 As shown, in other embodiments of this application, the third coil 240 is wound around the outside of the drawer 230. Specifically, the storage container 20 includes a housing with a placement cavity formed inside. The drawer 230 is disposed in the placement cavity of the housing. The third coil 240 surrounds the four sides of the housing, thereby winding around the outside of the drawer 230.

[0063] It should be noted that when the storage device adopts a box-shaped structure with an open front end, the third coil 240 can be directly wound around the outside of the storage device.

[0064] Go back to reference Figure 1 As shown, a partition 140 is provided in the storage room 110. The partition 140 is located between the air vent 130 and the storage container 20, and the rear end of the partition 140 abuts against the rear side wall of the storage room 110, while the front end extends to the front end of the storage container 20.

[0065] Therefore, during the cooling process of storage compartment 110, the cold air entering storage compartment 110 from damper 130 can be blown along partition 140 towards the front of storage container 20, and then flow downwards from the front of storage container 20 to the bottom of storage container 20. It then flows sequentially from the bottom of storage container 20 and returns to cooling chamber 120 through return air vent, forming a circulation. This helps to ensure that cold air flows throughout storage compartment 110, improving the cooling effect.

[0066] like Figure 9 As shown, in one embodiment, the refrigerator control method generally includes:

[0067] Step S901: Obtain the refrigerator's set storage level.

[0068] Step S903: Control the first coil and / or the second coil to be energized according to the set storage level.

[0069] Specifically, the storage settings include a first storage setting and a second storage setting. The first storage setting corresponds to the first coil being activated only, while the second storage setting corresponds to both the first magnetic field strength and the second coil being activated. Therefore, upon obtaining the first storage setting, the first coil is energized only. Upon obtaining the second storage setting, both the first and second coils are energized.

[0070] In this application, by setting a magnetically conductive element 210 with a horizontal segment 211 and a vertical segment 212, and winding an electric coil 220 around the horizontal segment 211, the problem of uneven magnetic field distribution caused by changing the number of coils can be avoided to some extent, making it possible to change the magnetic field by the number of coils. Furthermore, by making different numbers of coils correspond to different storage levels, and energizing different numbers of coils at different storage levels, the electronic control structure for changing voltage is eliminated, which helps to simplify the structure.

[0071] It should be noted that when the coil 220 includes three or more coils, the number of storage positions can also be increased accordingly.

[0072] like Figure 10 As shown, in one embodiment, the refrigerator control method generally includes:

[0073] Step S1001: After detecting that the storage device is open, it is closed. Specifically, the refrigerator is equipped with an opening / closing sensor for detecting whether the drawer 230 is open. The opening / closing sensor can be an infrared sensor, located on the front side of the drawer 230. When the drawer 230 is opened, it blocks the infrared sensor, thus detecting that the drawer 230 is open. After the drawer 230 is closed, the infrared sensor is no longer blocked, thus detecting that the drawer 230 is closed. Therefore, the drawer 230 is determined to be open and then closed by the signal change of the infrared sensor.

[0074] Step S1003: Obtain the refrigerator's set storage level.

[0075] Step S1005: Control the first coil and / or the second coil to be energized according to the set storage level.

[0076] Step S1007: Obtain the actual temperature of the storage space.

[0077] Specifically, a temperature sensor is installed inside drawer 230 to detect the temperature inside storage space 231.

[0078] Step S1009: Determine whether the difference between the actual temperature and the set temperature is greater than or equal to a preset threshold. If yes, proceed to step S1011. If no, proceed to step S1013.

[0079] Step S1011: Control the third coil to be energized and control the damper to open in order to cool the storage room.

[0080] Step S1013: Perform the conventional refrigeration process.

[0081] Specifically, if the difference between the actual temperature and the set temperature is greater than or equal to a preset threshold, it indicates that new, hot food has been placed in drawer 230, or that drawer 230 has been open for an extended period, causing a significant increase in temperature within storage space 231. However, the cold air dissipates slowly from the food previously stored in drawer 230, so some cold air remains. At this time, by controlling the energization of the third coil 240, the magnetic field strength and uniformity within drawer 230 can be increased. Consequently, the food can be kept fresh at a temperature lower than the set temperature. This serves as a safety measure, preventing the food previously stored in storage space 231 from freezing when the temperature in storage space 231 drops to the set temperature. Furthermore, the partition 140 prevents cold air from directly blowing onto the food in drawer 230, preventing the food from directly absorbing cold air and further preventing the food from freezing when the temperature drops to the set temperature.

[0082] After the temperature in the storage space 231 drops to the set temperature, the third coil 240 is turned off, and the normal cooling process is then performed. That is, the coil under the set storage position remains energized to perform cooling at the on / off point temperature of the set temperature.

[0083] If the difference between the actual temperature and the set temperature is greater than or equal to the preset threshold, the normal cooling process will be executed.

[0084] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A magnetic field preservation refrigerator, comprising: The container has storage compartments. A storage container, disposed in the storage room, comprising: A magnetic conductive element having a horizontal section and a vertical section, one end of the vertical section being connected to one end of the horizontal section; An electric coil, comprising at least a first electric coil and a second electric coil, wherein the first electric coil and the second electric coil are wound side by side on the horizontal segment along the extension direction of the horizontal segment, and one of the first electric coil and the second electric coil is energized independently; A storage device having a storage space, the storage device cooperating with the magnetic conductive element, the horizontal section covering the top or bottom surface of the storage space, and the vertical section covering one side of the storage space; The storage container includes a third coil disposed between the vertical section and the side of the storage device near 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 onto the plane containing the inner surface of the vertical section overlaps with the inner surface of the vertical section.

2. The magnetic field preservation refrigerator according to claim 1, wherein, The inner surface of the vertical section is provided with a protrusion facing the storage device, and the third coil is wound around the protrusion.

3. The magnetic field preservation refrigerator according to claim 1, wherein, or, The third coil is wound around the outside of the storage device.

4. The magnetic field preservation refrigerator according to claim 1, wherein, The horizontal segment is located at the bottom surface of the storage space, and / or, The vertical section is located at the rear of the storage space.

5. The magnetic field preservation refrigerator according to claim 1, wherein, The storage room has a vent on its rear side wall and a partition inside the storage room. The partition is located between the vent and the storage container, with the rear end of the partition abutting against the rear side wall of the storage room and the front end of the partition extending to the front end of the storage container.

6. A method for controlling a refrigerator, used in a magnetic field preservation refrigerator according to any one of claims 1 to 5, comprising: Get the refrigerator's set storage level; The first and / or second coils are energized according to the set storage level.

7. The refrigerator control method according to claim 6, wherein, The set storage level includes a first storage level and a second storage level. The first storage level corresponds to the first coil being turned on alone, and the second storage level corresponds to both the first coil and the second coil being turned on. The step of controlling the first coil and / or the second coil to be energized according to the set storage level includes: The set storage level is obtained as the first storage level, and the first coil is controlled to be energized separately; The set storage level is determined to be the second storage level, and the first and second coils are energized.

8. The refrigerator control method according to claim 6, wherein, The step of obtaining the refrigerator's set storage level includes the following: The storage device is closed after it is detected that it is open.

9. The refrigerator control method according to claim 8, wherein, The step of controlling the first coil and / or the second coil to be energized according to the set storage level includes: Obtain the actual temperature of the storage space; Determine whether the difference between the actual temperature and the set temperature is greater than or equal to a preset threshold. If so, control the third coil to be energized and control the damper to open in order to cool the storage room.

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