Magnetic field preservation device and air-cooled refrigeration equipment

Abstract

The present invention provides a magnetic field preservation device and an air-cooled refrigeration device, wherein the magnetic field preservation device comprises a drawer container, a drawer, a magnet assembly and a waterproof structure. The drawer container has an opening on the front side; the drawer is slidably installed in the drawer container; the magnet assembly comprises a first magnet and a second magnet arranged on opposite sides of the drawer container; the magnet installation cavity comprises a first installation cavity for arranging the first magnet and a second installation cavity for arranging the second magnet, and the first installation cavity and the second installation cavity are both arranged to allow airflow to pass through to cool the first magnet and the second magnet; the waterproof structure is used to waterproof the magnet assembly. The magnetic field preservation device of the present invention not only improves the utilization rate of the magnetic field, but also avoids the situation where the magnet is corroded by water.

Description

Technical Field

[0001] The invention belongs to the technical field of fresh-keeping equipment, and specifically provides a magnetic field fresh-keeping device and an air-cooled refrigeration device. Background Art

[0002] Theoretical studies have found that the magnetic field has a significant impact on the formation of ice crystals during the freezing process and can reduce the freezing temperature of food.

[0003] In order to keep food fresh at low temperatures without freezing, some manufacturers now equip refrigeration equipment (such as refrigerators) with electromagnetic coils to provide a magnetic field for the food in the refrigeration equipment through the electromagnetic coils.

[0004] However, if water or water vapor from the outside enters the electromagnetic coil and cannot be discharged in time, it will corrode the electromagnetic coil, causing electrical connection between the electromagnetic coil and other structures, thereby reducing the performance of the electromagnetic coil. Summary of the invention

[0005] One object of the present invention is to provide a new magnetic field preservation device to prevent the magnet from being corroded by water, thereby ensuring the performance of the electromagnetic coil.

[0006] Another object of the present invention is to improve the magnetic field preservation performance of the magnetic field preservation device.

[0007] Another object of the present invention is to make the magnetic field preservation device have a magnetic field with uniform intensity.

[0008] To achieve the above object, the present invention provides a magnetic field preservation device, comprising:

[0009] A drawer container having an opening on its front side;

[0010] a drawer slidably mounted in the drawer container;

[0011] a magnet assembly including a first magnet and a second magnet disposed on opposite sides of the drawer container;

[0012] a magnet installation cavity, comprising a first installation cavity for arranging the first magnet and a second installation cavity for arranging the second magnet, wherein the first installation cavity and the second installation cavity are both configured to allow airflow to pass through so as to cool the first magnet and the second magnet;

[0013] The waterproof structure is used to waterproof the magnet assembly.

[0014] Optionally, the first magnet and the second magnet are electromagnetic coils respectively; and the waterproof structure includes a waterproof layer coated on the electromagnetic coils.

[0015] Optionally, the electromagnetic coil is a coil wound with enameled wire.

[0016] Optionally, the first magnet and the second magnet are electromagnetic coils respectively; a first wire outlet hole is formed in the first installation cavity, through which the lead wire of the first magnet passes and allows the liquid in the first installation cavity to flow out; a second wire outlet hole is formed in the second installation cavity, through which the lead wire of the second magnet passes and allows the liquid in the second installation cavity to flow out.

[0017] Optionally, a first annular groove is provided on the bottom wall of the first mounting cavity, the first magnet is installed in the first annular groove, and the first wire outlet hole is provided at a corner of the first annular groove; and / or, a second annular groove is provided on the bottom wall of the second mounting cavity, the second magnet is installed in the second annular groove, and the second wire outlet hole is provided at a corner of the second annular groove.

[0018] Optionally, the first air inlet of the first installation cavity is arranged at a corner of the first annular groove opposite to the first wire outlet hole; and / or, the second air inlet of the second installation cavity is arranged at a corner of the second annular groove opposite to the second wire outlet hole; and / or, the angle between the first wire outlet hole and the second wire outlet hole and the horizontal plane ranges from 0-45°.

[0019] Optionally, the magnetic field preservation device also includes an insulation plate arranged on the bottom side of the drawer container, the insulation plate is provided with a drainage hole, and the height of each part of the insulation plate gradually decreases as approaching the drainage hole; the insulation plate is used to receive the liquid discharged from the first outlet hole and the second outlet hole.

[0020] Optionally, the magnetic field preservation device further comprises a water receiving container arranged below the drawer container, and the water receiving container is used to receive the liquid falling from the water leakage hole.

[0021] Optionally, the magnetic field preservation device comprises:

[0022] A top cover plate, which is arranged on the top side of the drawer container, and the first mounting cavity is formed between the top cover plate and the top wall of the drawer container;

[0023] A bottom cover plate, which is arranged on the bottom side of the drawer container, and the second mounting cavity is formed between the bottom cover plate and the bottom wall of the drawer container;

[0024] and / or,

[0025] The magnet assembly further comprises:

[0026] A first magnetic conductive member, which is installed in the first installation cavity, and the first magnetic conductive member is used to prevent the magnetic field generated by the first magnet from leaking out;

[0027] A second magnetic conductive member is installed in the second installation cavity, and the second magnetic conductive member is used to prevent the magnetic field generated by the second magnet from leaking out;

[0028] The magnetic conductive connecting component is disposed between the first magnetic conductive component and the second magnetic conductive component, and the magnetic conductive connecting component is connected to the first magnetic conductive component and the second magnetic conductive component respectively.

[0029] In addition, the present invention also provides an air-cooled refrigeration device, comprising the magnetic field preservation device described in any one of the aforementioned technical solutions, and the air-cooled refrigeration device can provide cold air to the magnetic field preservation device.

[0030] Based on the foregoing description, those skilled in the art will understand that, in the aforementioned technical solution of the present invention, by providing a waterproof structure for the magnet assembly, the situation where the magnet comes into contact with water or moisture is avoided, thereby avoiding the situation where the magnet is corroded by water, thereby ensuring the performance of the electromagnetic coil.

[0031] Furthermore, by winding the enameled wire into the electromagnetic coil and coating the outer side of the electromagnetic coil with a waterproof layer, the electromagnetic coil has a double-layer waterproof structure and has better waterproof performance. At the same time, since the coil wound by the enameled wire has a compact structure, the first magnet and the second magnet have a smaller volume and occupy less space.

[0032] Furthermore, by allowing the first wire outlet hole to not only be passed by the lead wire of the first magnet but also allow the liquid in the first installation cavity to flow out, multiple uses of one hole are achieved, avoiding the need to set up a separate drainage hole, and making the structure of the magnetic field preservation device more compact.

[0033] Furthermore, by respectively arranging the first air inlet and the first wire outlet hole at two opposite corners on the first annular groove, and respectively arranging the second air inlet and the second wire outlet hole at two opposite corners on the second annular groove, the airflow can, under the restriction of the first annular groove and the second annular groove, blow the water or water vapor in the first annular groove and the second annular groove toward the first wire outlet hole and the second wire outlet hole, so that the water or water vapor in the first annular groove and the second annular groove can be quickly discharged.

[0034] Furthermore, by arranging the first magnetic conductive member in the first installation cavity, the first magnet avoids the leakage of the magnetic field through the first magnetic conductive member; by arranging the second magnetic conductive member in the second installation cavity, the second magnet avoids the leakage of the magnetic field through the second magnetic conductive member, thereby improving the utilization rate of the magnetic field. At the same time, the first magnetic conductive member and the second magnetic conductive member can also make the magnetic field strength in the drawer container uniform, providing a good fresh-keeping environment for the stored items in the drawer.

[0035] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same reference numerals indicate the same or similar components or parts in different drawings; the drawings of the present invention are not necessarily drawn to scale.

[0037] In the attached figure:

[0038] Figure 1 is a schematic diagram of the effect of an air-cooled refrigeration device in some embodiments of the present invention;

[0039] Figure 2 is a schematic diagram of the principle of a magnetic field preservation device in some embodiments of the present invention;

[0040] Figure 3 is an isometric cross-sectional view of a magnetic field preservation device in some embodiments of the present invention;

[0041] Figure 4 is a schematic diagram of the effect of the magnetic field preservation device in some embodiments of the present invention;

[0042] Figure 5 yes Figure 4 an axonometric view of the center magnet assembly;

[0043] Figure 6 is a schematic diagram of the effect of the electromagnetic coil being wrapped by a waterproof layer in some embodiments of the present invention;

[0044] Figure 7 is a front upper isometric view of a magnetic field preservation device in some embodiments of the present invention (the top cover is omitted);

[0045] Figure 8 is a front upper isometric view of a magnetic field preservation device in some embodiments of the present invention (the top cover plate and the magnet assembly are omitted);

[0046] Fig. 9is a front lower isometric view of a magnetic field preservation device in some embodiments of the present invention (the bottom cover is omitted);

[0047] Fig.10 is a schematic diagram of the effect of the second installation cavity in some embodiments of the present invention;

[0048] Fig.11 1 is a front lower isometric view of a magnetic field preservation device in some embodiments of the present invention (the bottom cover plate and the magnet assembly are omitted). DETAILED DESCRIPTION

[0049] It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, rather than all embodiments of the present invention, and these embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0050] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Figure 1 Schematic diagram of the effect of air-cooled refrigeration equipment in some embodiments of the present invention. The air-cooled refrigeration equipment includes a box 100 and a magnetic field preservation device 200. The magnetic field preservation device 200 is installed on the box 100 and is used to refrigerate and preserve stored objects (including food, medicine, wine, biological reagents, bacterial colonies, chemical reagents, etc.).

[0053] In the present invention, the air-cooled refrigeration equipment includes a refrigerator, a freezer and a freezer.

[0054] Figure 2 Schematic diagram of the principle of the magnetic field preservation device 200 in some embodiments of the present invention.

[0055] like Figure 2 As shown, in some embodiments of the present invention, the box 100 includes a refrigeration chamber 110, an air supply channel 120, a return air channel 130 and a storage chamber (not shown in the figure). The refrigeration chamber 110 and the storage chamber are connected to each other through the air supply channel 120 and the return air channel 130, so that air circulates between the refrigeration chamber 110 and the storage chamber. The magnetic field preservation device 200 is arranged in the storage chamber.

[0056] Furthermore, in some embodiments of the present invention, there may be one or more storage rooms. When there are multiple storage rooms, some of the storage rooms are refrigeration rooms, some of the storage rooms are temperature-changing rooms, and some of the storage rooms are freezer rooms. At least one magnetic field preservation device 200 is arranged in the temperature-changing room and / or the freezer room.

[0057] Continue reading Figure 2 In some embodiments of the present invention, the air-cooled refrigeration device further includes an evaporator 300 and a fan 400, wherein the evaporator 300 is arranged in the refrigeration chamber 110 for cooling the air in the refrigeration chamber 110. The fan 400 is used to drive the air to circulate in the refrigeration chamber 110, the air supply passage 120, the storage chamber and the return air passage 130 in sequence.

[0058] Continue reading Figure 2 In some embodiments of the present invention, the magnetic field preservation device 200 includes a drawer container 210, a drawer 220, a magnet assembly 230, a magnet mounting cavity 240, a top cover plate 250, a bottom cover plate 260, an insulation plate 270 and a water receiving container 280.

[0059] Among them, the drawer 220 is slidably installed in the drawer container 210 for placing stored objects. The magnet assembly 230 is used to provide a magnetic field to the stored objects in the drawer 220. The magnet installation cavity 240 is used to install the magnet assembly 230. A part of the magnet installation cavity 240 is formed between the top cover plate 250 and the top wall of the drawer container 210, and a part of the magnet installation cavity 240 is also formed between the bottom cover plate 260 and the top wall of the drawer container 210. The insulation board 270 is arranged on the bottom side of the drawer container 210. The water receiving container 280 is used to hold liquids (including condensed water, juice of stored objects, etc.).

[0060] Figure 3 is an isometric cross-sectional view of a magnetic field preservation device 200 in some embodiments of the present invention.

[0061] like Figure 2 and Figure 3As shown, the front side of the drawer container 210 has an opening 211, which allows the drawer 220 to be inserted into the drawer container 210, so that the drawer 220 can be slidably installed in the drawer container 210. The back side of the drawer container 210 is also provided with a return air port 212, which is connected to the return air channel 130 to introduce the air in the drawer container 210 into the return air channel 130. In addition, those skilled in the art can also set the return air port 212 on the left side, right side, lower side or upper side of the drawer container 210 as needed.

[0062] like Figure 2 and Figure 3 As shown, the drawer 220 has a front cover 221. When the drawer 220 slides into the drawer container 210, the front cover 221 abuts against the frame 213 at the front end of the drawer container 210, and there is a gap between the front cover 221 and the frame 213 at the front end of the drawer container 210.

[0063] Figure 4 Schematic diagram of the effect of the magnetic field preservation device 200 in some embodiments of the present invention; Figure 5 yes Figure 4 An isometric view of the middle magnet assembly 230 .

[0064] like Figure 4 and Figure 5 As shown, the magnet assembly 230 is disposed on the outside of the drawer container 210 to facilitate the fixing and wiring of the magnet assembly 230. Of course, those skilled in the art can also dispose the magnet assembly 230 on the inside of the drawer container 210 as needed.

[0065] like Figure 4 and Figure 5 As shown, the magnet assembly 230 includes a first magnet 231 and a second magnet 232 disposed on opposite sides of the drawer container 210. Preferably, the first magnet 231 and the second magnet 232 are aligned with each other. Further preferably, the first magnet 231 and the second magnet 232 are disposed on the top side and the bottom side of the drawer container 210, respectively. In addition, those skilled in the art may also, as required, respectively dispose the first magnet 231 and the second magnet 232 on the left side and the right side of the drawer container 210.

[0066] Continue reading Figure 4 and Figure 5 The magnet assembly 230 may further include a first magnetic conductive member 233, a second magnetic conductive member 234 and a magnetic conductive connecting member 235. The first magnetic conductive member 233 corresponds to the first magnet 231, the second magnetic conductive member 234 corresponds to the second magnet 232, and the magnetic conductive connecting member 235 connects the first magnetic conductive member 233 and the second magnetic conductive member 234 together.

[0067] In the present invention, the first magnetic conductive member 233, the second magnetic conductive member 234 and the magnetic conductive connecting member 235 are used to prevent the magnetic field of the first magnet 231 and the second magnet 232 from leaking out, that is, to limit the magnetic field generated by the first magnet 231 and the second magnet 232, specifically, to limit the magnetic field generated by the first magnet 231 and the second magnet 232 within the drawer container 210, so that the magnetic field acts on the stored objects in the drawer 220 as much as possible. Therefore, the present invention improves the utilization rate of the magnetic field of the first magnet 231 and the second magnet 232 by providing the first magnetic conductive member 233, the second magnetic conductive member 234 and the magnetic conductive connecting member 235.

[0068] Preferably, in horizontal projection, the first magnetic conductive member 233 and the first magnet 231 can jointly cover the stored objects in the drawer 220, and the second magnetic conductive member 234 and the second magnet 232 can also jointly cover the stored objects in the drawer 220, so that the stored objects in the drawer 220 can all be affected by the magnetic field.

[0069] Furthermore, the first magnetic conductive component 233 , the second magnetic conductive component 234 and the magnetic conductive connecting component 235 can also make the magnetic field strength more evenly distributed, so that the first magnet 231 and the second magnet 232 can provide a good magnetic field preservation environment for the stored objects in the drawer 220 .

[0070] It should be noted that the first magnetic conductive component 233 , the second magnetic conductive component 234 and the magnetic conductive connecting component 235 may be any feasible magnetic conductive components, such as silicon steel sheets.

[0071] In some embodiments of the present invention, the first magnet 231 and the second magnet 232 of the present invention are both electromagnetic coils. Further, the first magnet 231 and the second magnet 232 are both coils wound with enameled wires. It is understood by those skilled in the art that the enameled wire has a smaller diameter than the wires coated with other insulating layers, so that the volume of the electromagnetic coil is also smaller.

[0072] Figure 6 It is a schematic diagram of the effect of the electromagnetic coil being wrapped by a waterproof layer in some embodiments of the present invention.

[0073] like Figure 6 As shown, the magnetic field preservation device 200 also includes a waterproof structure 290, which is used to waterproof the magnet assembly 230. Specifically, the waterproof structure 290 includes a waterproof layer 291 coated on the electromagnetic coil (the first magnet 231 and the second magnet 232). Optionally, the waterproof layer 291 can be coated on the first magnet 231 and the second magnet 232 by varnishing, plastic sealing, spraying, etc.

[0074] Furthermore, the wire coating of the first magnet 231 and the second magnet 232 is waterproof coating to block water outside the wire coating and prevent water from contacting the wire coating, so that the wire coating of the first magnet 231 and the second magnet 232 also serves as part of the waterproof structure 290.

[0075] Return to continue reading Figure 2 and Figure 3 The magnet installation cavity 240 includes a first installation cavity 241 and a second installation cavity 242. The first installation cavity 241 is used to place the first magnet 231 and the first magnetic conductive member 233, and the second installation cavity 242 is used to arrange the second magnet 232 and the second magnetic conductive member 234. The first installation cavity 241 and the second installation cavity 242 are both configured to allow airflow to pass through, so as to cool at least the first magnet 231 and the second magnet 232.

[0076] Further, the first installation cavity 241 is formed between the top cover plate 250 and the top wall of the drawer container 210. Preferably, the top cover plate 250 and the top wall of the drawer container 210 together form the first installation cavity 241. The second installation cavity 242 is formed between the bottom cover plate 260 and the bottom wall of the drawer container 210. Preferably, the bottom cover plate 260 and the bottom wall of the drawer container 210 together form the second installation cavity 242.

[0077] Continue reading Figure 2 and Figure 3 The first installation cavity 241 has a first air inlet 2411 and a first air outlet 2412. The first installation cavity 241 is connected to the air supply channel 120 through the first air inlet 2411, and the first installation cavity 241 is connected to the drawer container 210 through the first air outlet 2412. Specifically, the first air outlet 2412 is aligned with the front cover 221 of the drawer 220, so that the first installation cavity 241 blows the cold air toward the front cover 221, and then the cold air is returned to the drawer 220. More specifically, the first air outlet 2412 is formed on the frame 213 at the front end of the drawer container 210.

[0078] Continue reading Figure 2 and Figure 3 The second installation cavity 242 has a second air inlet 2421 and a second air outlet 2422. The second installation cavity 242 is connected to the air supply channel 120 through the second air inlet 2421, and the second installation cavity 242 is connected to the drawer container 210 through the second air outlet 2422. Specifically, the second air outlet 2422 is formed on the bottom wall of the drawer container 210. The second installation cavity 242 blows cold air onto the bottom wall of the drawer 220 through its second air outlet 2422.

[0079] Based on the foregoing description, it can be understood by those skilled in the art that the magnetic field preservation device 200 of the present invention can prevent cold air from blowing directly onto the stored items in the drawer 220, thereby preventing the stored items from being frozen. At the same time, due to the arrangement of the magnet assembly 230, the magnetic field generated by the magnet assembly 230 can have a greater impact on the formation of ice crystals during the freezing process, thereby reducing the freezing temperature of the stored items. This allows the stored items to be stored at a lower temperature without freezing. Therefore, the air-cooled refrigeration equipment and the magnetic field preservation device 200 of the present invention can effectively prevent the stored items from being frozen.

[0080] Figure 7 is a front upper isometric view of a magnetic field preservation device 200 in some embodiments of the present invention (the top cover is omitted); Figure 8 is a front upper isometric view of a magnetic field preservation device 200 in some embodiments of the present invention (the top cover plate and the magnet assembly are omitted); Fig. 9 is a front lower isometric view of a magnetic field preservation device 200 in some embodiments of the present invention (the bottom cover is omitted); Fig.10 is a schematic diagram of the effect of the second installation cavity in some embodiments of the present invention; Fig.11 1 is a front lower isometric view of a magnetic field preservation device 200 in some embodiments of the present invention (the bottom cover plate and the magnet assembly are omitted).

[0081] like Figures 7 to 11 As shown, a first annular groove 2413 is formed in the first installation cavity 241 , and the first magnet 231 is installed in the first annular groove 2413 . A second annular groove 2323 is formed in the second installation cavity 242 , and the second magnet 232 is installed in the second annular groove 2323 .

[0082] like Figure 8 As shown, a first outlet hole 2414 is provided on the bottom wall of the first installation cavity 241, through which the lead wire of the first magnet 231 passes and allows the liquid in the first installation cavity 241 to flow out. Preferably, the first outlet hole 2414 is provided at a corner of the first annular groove 2413. Further preferably, the first air inlet 2411 is provided at a corner on the side wall of the first annular groove 2413 opposite to the first outlet hole 2414. Optionally, the first outlet hole 2414 is also connected to the drawer container 210.

[0083] On the basis that the first outlet hole 2414 is also connected to the drawer container 210 , those skilled in the art may also omit the first air outlet 2412 as needed, so that the air in the first installation cavity 241 enters the drawer container 210 through the first outlet hole 2414 .

[0084] like Fig.10As shown, a second outlet hole 2424 is provided on the bottom wall of the second installation cavity 242, and the lead wire of the second magnet 232 passes through the second outlet hole 2424 and allows the liquid in the second installation cavity 242 to flow out. Preferably, the second outlet hole 2424 is provided at a corner of the second annular groove 2423. Further preferably, the second air inlet 2421 is provided at a corner on the side wall of the second annular groove 2423 opposite to the second outlet hole 2424.

[0085] Those skilled in the art will appreciate that by respectively arranging the first air inlet 2411 and the first wire outlet hole 2414 at two opposite corners on the first annular groove 2413, and respectively arranging the second air inlet 2421 and the second wire outlet hole 2424 at two opposite corners on the second annular groove 2423, the air flow can, under the restriction of the first annular groove 2413 and the second annular groove 2423, blow the water or water vapor in the first annular groove 2413 and the second annular groove 2423 toward the first wire outlet hole 2414 and the second wire outlet hole 2424, so that the water or water vapor in the first annular groove 2413 and the second annular groove 2423 can be quickly discharged.

[0086] Preferably, the height of the bottom surface of the first annular groove 2413 gradually decreases as it approaches the first outlet hole 2414, so that the liquid in the first annular groove 2413 flows to the first outlet hole 2414 under the action of its own gravity, and finally flows out of the first installation cavity 241. Similarly, the height of the bottom surface of the second annular groove 2423 gradually decreases as it approaches the second outlet hole 2424, so that the liquid in the second annular groove 2423 flows to the second outlet hole 2424 under the action of its own gravity, and finally flows out of the second installation cavity 242.

[0087] Further preferably, there is a gap between the bottom surface of the first annular groove 2413 and the bottom surface of the first magnet 231 to prevent the liquid in the first annular groove 2413 from soaking the first magnet 231 and to prevent the first magnet 231 from obstructing the flow of the liquid in the first annular groove 2413. Similarly, there is a gap between the bottom surface of the second annular groove 2423 and the bottom surface of the second magnet 232 to prevent the liquid in the second annular groove 2423 from soaking the second magnet 232 and to prevent the second magnet 232 from obstructing the flow of the liquid in the second annular groove 2423.

[0088] Furthermore, the angle between the first outlet hole 2414 and the second outlet hole 2424 and the horizontal plane ranges from 0 to 45 degrees, so that the first outlet hole 2414 and the second outlet hole 2424 can not only drain the liquid in the first annular groove 2413 and the second annular groove 2423, but also facilitate the passage of the leads of the first magnet 231 and the second magnet 232.

[0089] Return to continue reading Figure 2A water leakage hole 271 is provided on the insulation board 270. Preferably, the water leakage hole 271 is provided in the middle of the insulation board 270, and the height of each part of the insulation board 270 gradually decreases as it approaches the water leakage hole 271, so that the liquid on the insulation board 270 can quickly gather at the water leakage hole 271.

[0090] In some embodiments of the present invention, the first outlet hole 2414 leads to the outside of the drawer container 210, so that the liquid flowing out of the first outlet hole 2414 flows along the outer surface of the side wall of the drawer container 210 to the insulation board 270. Preferably, a drainage groove for guiding the liquid to flow to the insulation board 270 is provided on the outer surface of the side wall of the drawer container 210. The second outlet hole 2424 points to the insulation board 270, so that the liquid flowing out of the second outlet hole 2424 flows directly to the insulation board 270.

[0091] Continue reading Figure 2 , the water leakage hole 271 is aligned with the water receiving container 280 so that the water flowing out of the water leakage hole 271 falls directly onto the water receiving container 280.

[0092] In the present invention, the water receiving container 280 can be a separate structure arranged below the heat preservation plate 270, such as a water receiving tray fixedly connected to the heat preservation plate 270 or the drawer container 210; the water receiving container 280 can also be a part of other components, for example, the magnetic field preservation device 200 also includes a shell, and the water receiving container 280 is a part of the shell. Specifically, the water receiving container 280 is a sink formed on the bottom wall of the shell. The water receiving container 280 can also be a pit formed on the bottom wall of the inner tank of the storage chamber.

[0093] Optionally, the water receiving container 280 is connected to a drain pipe to discharge the liquid therein to the outside of the air-cooled refrigeration device through the drain pipe.

[0094] Further optionally, a water level detection sensor and a switch are provided at the water receiving container 280. The water level detection sensor is used to detect the liquid level of the liquid in the water receiving container 280, and the switch is used to cut off the connection between the water receiving container 280 and the drain pipe. When the liquid level in the water receiving container 280 does not reach the set water level, the switch is closed, and the liquid in the water receiving container 280 does not flow out; when the liquid level in the water receiving container 280 reaches the set water level, the switch is opened, and the liquid in the water receiving container 280 flows to the drain pipe.

[0095] In addition, in other embodiments of the present invention, those skilled in the art may also provide an insulation board on the top wall and / or left side wall and / or right side wall and / or rear side wall of the drawer container 210 as needed.

[0096] The heat-insulating board in the present invention can be a structure made of any feasible material such as foam, foaming, etc.

[0097] Based on the foregoing description, those skilled in the art can understand that the magnetic field preservation device 200 of the present invention can not only cool the magnet assembly 230, but also can promptly discharge the condensed water generated during the refrigeration process, thereby avoiding the situation where the magnet assembly 230 is damaged by being soaked in condensed water; moreover, the magnet assembly 230 of the present invention also improves the utilization rate of the magnetic field and reduces energy consumption.

[0098] So far, the technical solution of the present invention has been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art can split and combine the technical solutions in the above embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present invention will fall within the protection scope of the present invention.

Claims

1. A magnetic field preservation device, comprising: A drawer container having an opening on its front side; a drawer slidably mounted in the drawer container; A magnet assembly, comprising a first magnet and a second magnet disposed on opposite sides of the drawer container; the first magnet and the second magnet are electromagnetic coils respectively; A magnet installation cavity, comprising a first installation cavity for arranging the first magnet and a second installation cavity for arranging the second magnet, the first installation cavity having a first air inlet for receiving cold air and a first air outlet for communicating with the drawer container, the first air outlet being aligned with the front end cover of the drawer so that the cold air flows through the first installation cavity to cool the first magnet; the second installation cavity having a second air inlet for receiving cold air and a second air outlet for communicating with the drawer container, the second air outlet being formed on the bottom wall of the drawer container so that the cold air flows through the second installation cavity to cool the second magnet; The waterproof structure comprises a waterproof layer coated on the first magnet and the second magnet to waterproof the magnet assembly.

2. The magnetic field preservation device according to claim 1, wherein: The electromagnetic coil is a coil wound by enameled wire.

3. The magnetic field preservation device according to claim 1, wherein: The first magnet and the second magnet are electromagnetic coils respectively; A first wire outlet hole is provided on the bottom wall of the first installation cavity, and the lead wire of the first magnet passes through the first wire outlet hole and allows the liquid in the first installation cavity to flow out; A second wire outlet hole is provided on the bottom wall of the second installation cavity. The lead wire of the second magnet passes through the second wire outlet hole and allows the liquid in the second installation cavity to flow out.

4. The magnetic field preservation device according to claim 3, wherein: A first annular groove is formed in the first installation cavity, the first magnet is installed in the first annular groove, and the first wire outlet hole is arranged at a corner of the first annular groove; and / or, A second annular groove is formed in the second installation cavity, the second magnet is installed in the second annular groove, and the second wire outlet hole is arranged at a corner of the second annular groove.

5. The magnetic field preservation device according to claim 4, wherein: The first air inlet of the first installation cavity is arranged at a corner of the first annular groove opposite to the first wire outlet hole; and / or, The second air inlet of the second installation cavity is arranged at a corner of the second annular groove opposite to the second wire outlet hole; and / or, The value range of the angles between the first wire outlet hole and the second wire outlet hole and the horizontal plane is 0-45°.

6. The magnetic field preservation device according to any one of claims 3 to 5, wherein: The magnetic field preservation device also includes a heat preservation plate arranged at the bottom side of the drawer container. The insulation board is provided with a water leakage hole, and the height of each part of the insulation board gradually decreases as it approaches the water leakage hole; The heat preservation plate is used to receive liquid discharged from the first wire outlet hole and the second wire outlet hole.

7. The magnetic field preservation device according to claim 6, wherein: The magnetic field preservation device also includes a water receiving container arranged below the drawer container, and the water receiving container is used to receive the liquid falling from the water leakage hole.

8. The magnetic field preservation device according to any one of claims 1 to 5, wherein: The magnetic field preservation device comprises: A top cover plate, which is arranged on the top side of the drawer container, and the first mounting cavity is formed between the top cover plate and the top wall of the drawer container; A bottom cover plate is arranged on the bottom side of the drawer container, and the second mounting cavity is formed between the bottom cover plate and the bottom wall of the drawer container.

9. The magnetic field preservation device according to any one of claims 1 to 5, wherein: The magnet assembly further comprises: A first magnetic conductive member, which is installed in the first installation cavity, and the first magnetic conductive member is used to prevent the magnetic field generated by the first magnet from leaking out; A second magnetic conductive member is installed in the second installation cavity, and the second magnetic conductive member is used to prevent the magnetic field generated by the second magnet from leaking out; The magnetic conductive connecting component is disposed between the first magnetic conductive component and the second magnetic conductive component, and the magnetic conductive connecting component is connected to the first magnetic conductive component and the second magnetic conductive component respectively.

10. An air-cooled refrigeration device, comprising the magnetic field preservation device according to any one of claims 1 to 9, and the air-cooled refrigeration device can provide cold air to the magnetic field preservation device.

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