Refrigeration equipment with magnetic field fresh-keeping device
By introducing a magnetic field preservation device and a surrounding air duct into the refrigeration equipment, combined with temperature detection, the problems of food juice loss and temperature fluctuations are solved, achieving efficient food preservation and temperature uniformity, and improving the quality of stored goods.
Patent Information
- Application Number
- CN202511726363.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-15
- Publication Date
- 2026-02-13
AI Technical Summary
Existing refrigeration equipment is prone to causing juice loss and spoilage when storing meat, fish, shrimp and other food products, affecting nutrition and taste. In addition, the heat generated by magnetic field preservation devices causes temperature fluctuations that affect the quality of stored products.
A refrigeration device with a magnetic field preservation mechanism was designed. By setting up a magnetic field component and a surrounding air duct in the storage room, combined with a temperature detection component, the magnetic field and temperature work together to reduce juice loss and maintain temperature uniformity.
It effectively reduces the loss of food juices, extends the shelf life, improves the quality of stored goods, and avoids temperature fluctuations, thus enhancing the preservation effect.
Smart Images
Figure CN121520779A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a refrigeration device, and particularly provides a refrigeration device with a magnetic field fresh-keeping device. BACKGROUND
[0002] The existing refrigeration device (including refrigerator, freezer, refrigerator, etc.) is prone to cause juice loss of meat when storing meat, fish, shrimp and other food materials, and further cause deterioration of fish meat and shrimp meat, resulting in loss of nutrients and poor taste.
[0003] Now it is found that the magnetic field can inhibit the growth of microorganisms and mold, and prolong the storage period of food materials. Therefore, the magnetic field can be used to assist in storing food materials, so as to achieve the purpose of prolonging the storage period of food materials. When using the magnetic field to assist in storing food materials, the magnetic field limits the free path of water molecules to a certain extent, which is specifically manifested as the breaking of hydrogen bonds in the water molecule cluster. In the phase change process, the crystal nucleus growth is inhibited, the growth rate of ice crystals is higher than the migration rate of water molecules, the generated ice crystals are small, the damage to cells is small, the loss rate of juice in food materials is reduced, and the nutrients and taste of food materials can be better preserved.
[0004] In order to realize fresh-keeping storage, the magnetic field needs to be matched with the storage temperature. Through actual test, in the state of non-freezing fresh-keeping storage, it is best to keep the storage temperature at 5-8 degrees Celsius, and the cooling speed also needs to be relatively stable. However, in the process of applying the magnetic field to the fresh-keeping space, the magnetic field generating device (generally an electromagnetic device) will generate heat, which will cause temperature fluctuation and affect the storage quality. SUMMARY
[0005] An object of the present application is to provide a refrigeration device with a magnetic field fresh-keeping device for improving refrigeration performance.
[0006] A further object of the present application is to make the refrigeration device with the magnetic field fresh-keeping device compact in structure and increase the use volume.
[0007] A further object of the present application is to make the temperature of the fresh-keeping space of the magnetic field fresh-keeping device uniform.
[0008] To achieve the above object, the present application provides a refrigeration device with a magnetic field fresh-keeping device, which comprises: a cabinet, which defines a storage chamber in the inside, and a refrigeration air duct for providing refrigeration air flow is arranged at the back of the storage chamber; a magnetic field fresh-keeping device arranged in the storage chamber and provided with a magnetic field assembly for applying a magnetic field to the fresh-keeping space in the inside.
[0009] The magnetic field preservation device comprises a barrel body, a rear part of which is formed with an air inlet and an air return connected with a refrigeration air duct; and a drawer, which is arranged in the barrel body in a pullable manner and defines a preservation space in the drawer; The top wall of the barrel body comprises: a drawer top cover opposite to the top opening of the drawer; an outer shell plate arranged above the drawer top cover and having a first space with the drawer top cover; a top heat insulation plate arranged in the first space; The rear wall of the barrel body is arranged in a spaced manner opposite to the back of the storage compartment, and the air return is arranged on the middle part of the rear wall; the top end of the rear wall is inclined to extend forwardly to the rear end of the top wall of the barrel body, and the air inlet is arranged on the inclined extension surface.
[0010] Optionally, the magnetic field preservation device is configured to form a surrounding air duct for making the air flow from the air inlet, through the top wall of the barrel body, the front baffle of the drawer, the space below the bottom plate of the drawer, and return to the air return, so as to refrigerate the preservation space.
[0011] Optionally, the space between the top heat insulation plate and the drawer top cover forms a top section of the surrounding air duct; and a plurality of through holes are further arranged on the drawer top cover to make the preservation space communicate with the top section through the through holes.
[0012] Optionally, the top heat insulation plate further comprises a plurality of air guide ribs on the side facing the drawer top cover, so as to guide the air flow in the top section through the air guide ribs, so that the air flow flows uniformly through the top section.
[0013] Optionally, the magnetic field assembly comprises a first magnetic guide plate arranged on the drawer top cover and a first magnetic element, the first magnetic element being flat and arranged in abutment with the first magnetic guide plate.
[0014] Optionally, the magnetic field assembly comprises a second magnetic guide plate arranged on the bottom wall of the barrel body and a second magnetic element, the second magnetic element being flat and arranged in abutment with the second magnetic guide plate, The first magnetic guide plate and the second magnetic guide plate are arranged in a spaced manner opposite to each other, and the magnetic field assembly further comprises a magnetic guide tape arranged on the side wall of the barrel body and connecting the first magnetic guide plate and the second magnetic guide plate to form a ring-shaped magnetic guide path surrounding the drawer.
[0015] Optionally, the refrigeration equipment with the magnetic field preservation device further comprises a first temperature detection component and a second temperature detection component arranged in the drawer top cover respectively, the first temperature detection component is arranged at a position close to the air inlet, and the second temperature detection component is arranged at a position close to the front baffle of the drawer.
[0016] Optionally, the front baffle of the drawer comprises: a middle partition plate; The air duct member is arranged on the side of the middle partition plate facing the fresh-keeping space and cooperates with the middle partition plate to define a front section of the air duct through the front baffle. The top of the air duct member is connected to the front baffle air inlet of the top section. The panel is arranged on the side of the middle partition plate opposite to the fresh-keeping space and forms an air insulation space with the middle partition plate.
[0017] Optionally, the top wall of the barrel further comprises: The air guide member is arranged at the front end of the top wall of the barrel. The rear part of the air guide member has a first air guide opening connected to the front end of the top section. The bottom of the air guide member is opposite to the front baffle air inlet and has a second air guide opening for connecting the front baffle air inlet, so as to guide the air flow of the top section into the front section. The bottom of the air guide member and the top of the air duct member are respectively arranged as inclined surfaces inclined downward from front to back.
[0018] Optionally, the drawer bottom plate is arranged spaced apart from the bottom wall of the barrel to form a lower space as a bottom section of the air duct. The front part of the drawer bottom plate is provided with a front baffle air outlet at a position opposite to the bottom end of the air duct member, so as to connect the bottom section through the front baffle air outlet.
[0019] Based on the foregoing description, those skilled in the art can understand that, in the foregoing technical solutions of the present application, the magnetic field fresh-keeping device is arranged in the storage compartment of the refrigeration equipment and is provided with a magnetic field assembly for applying a magnetic field to the fresh-keeping space inside the device. The magnetic field helps to improve the storage quality, shorten the freezing time, reduce the juice loss rate and nutrient loss of food, reduce the number of microorganisms and bacteria, and prolong the fresh-keeping period. Moreover, the magnetic field fresh-keeping device is configured to have an air inlet and an air return connected to the refrigeration air duct, so that the fresh-keeping space of the magnetic field fresh-keeping device can be refrigerated. The cold air can also timely take away the heat generated by the magnetic member (such as an electromagnetic element) during operation, avoiding temperature fluctuations in the fresh-keeping space. The effects of temperature and magnetic field are combined to improve the fresh-keeping effect on food in the fresh-keeping space.
[0020] Furthermore, the barrel and the drawer of the magnetic field fresh-keeping device are optimized and improved in the refrigeration equipment of the present application, which is compact in structure and reduces the occupation of the storage space.
[0021] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of the embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the present application, the following will describe some embodiments of the present application with reference to the accompanying drawings. Those skilled in the art should understand that the same reference signs in different drawings represent the same or similar parts or components. The drawings of the present application are not necessarily drawn to scale. In the drawings: Figure 1 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application; Figure 2 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application; Figure 3 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application; Figure 2 is a schematic view of the magnetic field preservation device from another viewing angle; Figure 4 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application; Figure 5 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application; Figure 4 is a close-up view of area A in FIG. 7; Figure 6 is a close-up view of area B in FIG. 7; Figure 4 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application; Figure 7 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application; Figure 8 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application; Figure 9 is a schematic view of a magnetic field preservation device in a refrigeration appliance according to an embodiment of the present application. Figure 10 DETAILED DESCRIPTION It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present application, and are not intended to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present application.
[0023] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", "main", "secondary" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0024] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", "main", "secondary" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0025] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0026] The refrigeration equipment of the present application includes refrigerator, freezer and refrigerator and other equipment for refrigeration storage of stored goods. In the embodiment, the refrigerator is taken as an example for introduction, and those skilled in the art can realize other refrigeration equipment such as freezer and refrigerator according to the introduction of the embodiment. The refrigeration equipment of the present application will be described in detail below with reference to the drawings.
[0027] Figure 1 is a schematic diagram of the refrigeration equipment according to an embodiment of the present application; the refrigeration equipment 10 can be a refrigerator, and includes a cabinet 110, a door body 120, and a refrigeration system (not shown in the figure). At least one storage compartment 130 with open front side can be defined in the cabinet 110, usually multiple, such as refrigeration storage compartment, freezing storage compartment, variable temperature storage compartment, etc. The number and function of the specific storage compartment 130 can be configured according to the pre-requisite demand.
[0028] The refrigeration equipment 10 can use air-cooled refrigeration to refrigerate the storage compartment 130. That is, a wind path system is provided in the cabinet 110, and the refrigeration airflow that has been heat-exchanged by the heat exchanger 150 (evaporator) is sent to the storage compartment 130 through the air supply port by the fan 160, and then returns to the air duct through the return air port 232. Refrigeration is achieved. In some embodiments, the back of the storage compartment 130 is provided with a refrigeration air duct 140 for providing refrigeration airflow, and the heat exchanger 150 can be arranged in the refrigeration air duct 140 to exchange heat with the airflow flowing therethrough. The fan 160 can also be arranged in the refrigeration air duct 140 to facilitate the circulation of the refrigeration airflow.
[0029] Optionally, the storage compartment can be multiple, and at least one of the multiple storage compartments is placed with the magnetic field fresh-keeping device 20. Those skilled in the art can configure one refrigeration system and air path for each storage compartment according to the need, for example, one heat exchanger 150 can be configured for one storage compartment, or one heat exchanger 150 can be configured for two or more storage compartments.
[0030] Since the cabinet, the door body and the refrigeration system of such a refrigerator are all known to those skilled in the art and easy to implement, those skilled in the art can select the refrigeration system and the air duct system according to needs. In order not to cover and obscure the application points of the present application, the cabinet 110, the door body 120 and the refrigeration system itself will not be described hereinafter.
[0031] The magnetic field preservation device 20 is arranged in a storage compartment 130 and is provided with a magnetic field assembly for applying a magnetic field to the preservation space 23 inside the magnetic field preservation device 20. The strength of the magnetic field can be set to 1Gs-100Gs. In the case of application to a frozen environment, the strength of the magnetic field can be preferably 5-60GS, for example, about 20Gs. In the case of application to a refrigerated environment, the strength of the magnetic field can be 20-160GS, preferably 40-80Gs, for example, about 60Gs. The magnetic field assembly can use permanent magnet components or electromagnetic components, i.e., use electromagnetic coils and permanent magnets to generate a magnetic field. In some embodiments, the electromagnetic coils and permanent magnets can be used in combination to generate a magnetic field.
[0032] Figure 2 FIG. 1 is a schematic view of a magnetic field preservation device 20 in a refrigeration device 10 according to an embodiment of the present application; Figure 3 Figure 2 FIG. 2 is a schematic view of another view angle of the magnetic field preservation device 20 shown in FIG. 1. Figure 4 Figure 5 Figure 4 FIG. 3 is a partial enlarged view of A in FIG. 2; Figure 6 Figure 4 FIG. 4 is a partial enlarged view of B in FIG. 2.
[0033] The magnetic field preservation device 20 can be provided as a drawer, for example, the magnetic field preservation device 20 can include a barrel 22 and a drawer 21. The rear part of the barrel 22 forms an air inlet 231 and an air return 232 that are in communication with the refrigeration air duct 140. The drawer 21 is provided in the barrel 22 in a pullable manner, and the preservation space 23 is defined in the drawer 21, i.e., the preservation space 23 in the drawer 21 can be controlled by a magnetic field and temperature to achieve a magnetic field preservation function.
[0034] The magnetic field fresh-keeping device 20 is configured to form a circulating air duct that makes the air flow from the air inlet 231 to the air return 232 through the top wall 221 of the barrel 22, the front baffle 215 of the drawer 21, and the space below the drawer bottom plate in sequence, so as to cool the fresh-keeping space 23. The circulating air duct enters the inside of the magnetic field fresh-keeping device 20 from the air inlet 231 at the top rear end of the magnetic field fresh-keeping device 20, passes through the top wall 221 of the barrel 22, enters the top end of the front baffle 215 of the drawer 21, flows through the front baffle 215 of the drawer 21 from the bottom to the space below the drawer bottom plate, and then returns to the air return 232 at the rear wall 224 of the barrel 22 to complete the circulation of the air flow. The section of the circulating air duct passing through the top wall 221 of the barrel 22, i.e., the section at the top of the magnetic field fresh-keeping device 20, is referred to as the top section 241. The section of the circulating air duct passing through the front baffle 215 of the drawer 21, i.e., the section at the front of the magnetic field fresh-keeping device 20, is referred to as the front section 242. The section of the circulating air duct passing through the space below the drawer bottom plate, i.e., the section at the bottom of the magnetic field fresh-keeping device 20, is referred to as the bottom section 243. The circulating air duct forms an air path that surrounds the fresh-keeping space 23 from front to back, effectively achieving uniform cooling.
[0035] The top wall 221 of the barrel 22 can include a drawer top cover 211, an outer shell plate 212, and a top heat insulation plate 213. The top wall 221 of the barrel 22 is sequentially composed of the outer shell plate 212, the top heat insulation plate 213, and the drawer top cover 211 from top to bottom.
[0036] The air return 232 can be arranged in the middle of the rear wall 224 of the barrel 22. The top end of the rear wall 224 extends obliquely to the rear end of the top wall 221 of the barrel 22, and the air inlet 231 is arranged on the obliquely extended surface. The positions of the air inlet 231 and the air return 232 make the magnetic field fresh-keeping device 20 cooperate more smoothly with the air duct of the refrigeration equipment 10, improving the air supply efficiency. In addition, the air inlet 231 is arranged at the top end of the rear side of the drawer 21 and is arranged obliquely, reducing the occupation of the air supply structure to the fresh-keeping space 23, and the structure is more compact and effective.
[0037] The drawer top cover 211 is opposite to the top opening of the drawer 21 and is used to close the top space of the fresh-keeping space 23. The outer shell plate 212 is arranged above the drawer top cover 211 and has a first interval with the drawer top cover 211. The top heat insulation plate 213 is arranged in the first interval, and the space between the top heat insulation plate 213 and the drawer top cover 211 forms the top section 241 of the circulating air duct passing through the top wall 221 of the barrel 22. A plurality of through holes are further arranged on the drawer top cover 211 to make the fresh-keeping space 23 communicate with the top section 241 by using the through holes. The aperture of the through hole can be set to be small, so that the refrigeration air flow uniformly enters the fresh-keeping space 23, avoiding direct blowing to the storage in the fresh-keeping space 23.
[0038] The top heat insulation plate 213 further has a plurality of air guide ribs 2131 formed on one side thereof facing the drawer top cover 211, so as to guide the air flow in the top section 241, and make the air flow evenly through the top section 241.
[0039] The barrel 22 is simple in molding processing, and can be an upper and lower or left and right split barrel, which is fixed by a special buckle or screw, or the like, or can be an integrally formed barrel. The barrel 22 has a corresponding drawer 21 mounting structure, such as a slide rail or slide way, arranged on the inner side of the side wall thereof.
[0040] The barrel 22 has a heat preservation member, such as a top heat insulation plate 213, a middle partition plate 2152, a bottom heat insulation plate, and a rear wall heat insulation plate, arranged on the outer side of the air channel, so as to avoid the cold air flow from being scattered outside, and improve the refrigeration efficiency.
[0041] Figure 7 is a schematic view of the top section 241 of the air channel of the magnetic field preservation device 20 in the refrigeration equipment 10 according to an embodiment of the present application. The refrigeration equipment 10 with the magnetic field preservation device 20 further includes a first temperature detection component 251 and a second temperature detection component 252. The first temperature detection component 251 and the second temperature detection component 252 are arranged in the drawer top cover 211, and the first temperature detection component 251 is arranged at a position close to the air inlet 231, and the second temperature detection component 252 is arranged at a position close to the front baffle 215 of the drawer 21. The first temperature detection component 251 and the second temperature detection component 252 can accurately detect the temperature in the preservation space 23, so as to provide a control basis for accurately controlling the temperature.
[0042] In other embodiments, the first temperature detection component 251 can be arranged in the drawer top cover 211, and the second temperature detection component 252 can be arranged at the bottom section 243 of the air channel, i.e., at the bottom wall 223 of the barrel 22, so as to reflect the temperature state at different positions of the preservation space 23.
[0043] The drawer top cover 211 has a receiving groove formed on one side thereof facing the top section 241 of the air channel, so as to arrange the first temperature detection component 251 and the second temperature detection component 252. An optional temperature control strategy is that when the temperature sensing value of the first temperature detection component 251 is higher than the preservation set temperature, the air supply to the magnetic field preservation device 20 is started. When the temperature sensing value of the second temperature detection component 252 is lower than the preservation temperature required by the food, the air supply to the magnetic field preservation device 20 is stopped.
[0044] Figure 8is an exploded view of components of a drawer 21 in a magnetic field fresh-keeping device 20 in a refrigeration appliance 10 according to an embodiment of the present application. The front panel 215 of the drawer 21 can include a partition 2152, an air duct 2153, a panel 2151, and an outer frame 2156. The panel 2151, the partition 2152, and the panel 2151 are arranged in this order from front to back. The outer frame 2156 serves as an outer peripheral frame of the front panel 215 of the drawer 21 and can have a support frame and a decorative strip outside the support frame. The front panel 215 of the drawer 21 encloses a front space of the fresh-keeping space 23 and can be pulled out by a user.
[0045] The air duct 2153 is arranged on the side of the partition 2152 facing the fresh-keeping space 23 and cooperates with the partition 2152 to define a front section 242 of the air duct that passes through the front panel 215. The top of the air duct 2153 communicates with the front panel air inlet 2154 of the top section 241. The front ends of the plurality of air guide ribs 2131 of the top heat insulation plate 213 can guide air flow to the front panel air inlet 2154.
[0046] The panel 2151 is arranged on the side of the partition 2152 opposite the fresh-keeping space 23 and forms an air insulation space with the partition 2152. The panel 2151 can be made of a glass plate. That is, the partition 2152 divides the front panel 215 of the drawer 21 into two chambers. The front chamber is the air insulation space to prevent cold energy from leaking. The rear chamber is the front section 242 of the air duct. The partition 2152 can also be made of a heat-insulating material to further prevent cold energy from leaking. The side of the partition 2152 facing the panel 2151 can form a plurality of protrusions that abut the rear side of the panel 2151 to support the panel 2151.
[0047] The above-described double-layer structure of the front panel 215 of the drawer 21 is compact and has good heat insulation effect. The front panel 215 of the drawer 21 can be connected into a whole by a decorative strip or a screw buckle, etc. The two layers increase the heat insulation effect, and the cooperation structure among the partition 2152, the air duct 2153, the panel 2151, and the outer frame 2156 can be fixed into a whole reasonably and simply by using fewer components, for example, by clamping, clamping jaws, clamping holes, etc. The lower end of the partition 2152 is provided with a corresponding plug-in structure to connect with the lower part of the drawer 21 to form a fixed whole. The front panel 215 of the drawer 21 can be further provided with a sealing strip on the rear side of the outer frame 2156 to cooperate with the sealing groove at the front end of the barrel 22 to seal the fresh-keeping space 23.
[0048] The drawer 21 is arranged to be pulled out along the front-rear direction of the barrel 22 in cooperation with the guide rail components of the barrel 22. After the drawer 21 is pulled back into the barrel 22, the relatively sealed fresh-keeping space 23 is formed, and the fresh-keeping storage is realized by the magnetic field generated by the magnetic field assembly.
[0049] Figure 9 Fig. 7 is a schematic view of a guide vane 214 of the magnetic field preservation device 20 in the refrigeration appliance 10 according to an embodiment of the present application. The top wall 221 of the tub 22 further comprises the guide vane 214. The guide vane 214 is arranged at the front end of the top wall 221 of the tub 22. The rear portion of the guide vane 214 has a first guide opening 2141 which is in communication with the front end of the top section 241. The bottom portion of the guide vane 214 is opposite to the front baffle air inlet 2154 and has a second guide opening 2142 which is in communication with the front baffle air inlet 2154, so as to guide the air flow of the top section 241 into the front section 242. The bottom portion of the guide vane 214 and the top portion of the air duct 2153 are respectively arranged as inclined surfaces which are inclined downward from front to back. By using the above-mentioned guide of the guide vane 214, the air resistance can be reduced, and the noise can be reduced. A grille can be arranged at the front baffle air inlet 2154, which cooperates with the air duct structure of the guide vane 214 and the front section 242.
[0050] The first guide opening 2141 and the front baffle air inlet 2154 can be an inclined surface, and the angle can be set to 1-89°. The gap between the front baffle air inlet 2154 and the inner tub is 0-10mm, and the gap position can be filled by a sealing strip, so that it is in close contact and does not produce hardness interference. The opening area of the front baffle air inlet 2154 is greater than or equal to the area of the front end of the top section 241. The material of the air duct 2153 can be ordinary plastic or plastic material with good heat conduction performance (with heat conduction or heat insulation coating). The air duct 2153 is connected to the drawer 21 and the drawer front cover by a specific plug-in cooperation mode. A certain heat insulation material (foam, PE or VIP, etc.) is pasted in the air duct 2153, and the front baffle air outlet 2155 at the lower end of the air duct 2153 makes the air flow completely enter the bottom section 243 of the surrounding air duct, so that the air flow is uniformly passed through the bottom section 243.
[0051] The drawer bottom plate is arranged in a spaced manner with the bottom wall 223 of the tub 22 to form the lower space as the bottom section 243 of the surrounding air duct. The front baffle air outlet 2155 is arranged at the position opposite to the bottom end of the air duct 2153 of the drawer bottom plate, so as to communicate the bottom section 243 by using the front baffle air outlet 2155.
[0052] The bottom wall 223 of the tub 22 is also multi-layered, for example, from bottom to top, it can comprise a bottom wall shell, a bottom heat insulation plate and a drawer bottom cover. The bottom wall shell is the lowest component of the magnetic field preservation device 20, and the bottom heat insulation plate is used for heat insulation. The drawer bottom cover is opposite to the drawer bottom in a spaced manner, and the space therebetween is the bottom section 243 of the surrounding air duct.
[0053] Figure 10 Fig. 8 is a schematic view of a magnetic field assembly 30 of the magnetic field preservation device 20 in the refrigeration appliance 10 according to an embodiment of the present application.
[0054] The magnetic field assembly 30 can include two sets of magnetic components respectively arranged on the drawer top cover 211 and the bottom wall 223 of the barrel body, wherein the first magnetic plate 321 and the first magnetic element 311 are arranged on the drawer top cover 211, and the first magnetic element 311 is flat as a whole and arranged in close contact with the first magnetic plate 321.
[0055] The second magnetic plate 322 and the second magnetic element (shielded and not shown) are arranged on the bottom wall 223 of the barrel body 22, and the second magnetic element is flat as a whole and arranged in close contact with the second magnetic plate 322. The first magnetic plate 321 and the second magnetic plate 322 are arranged opposite to each other, and the magnetic field assembly 30 can further include a magnetic conducting belt 323. The magnetic conducting belt 323 can be arranged on the side wall of the barrel body 22 and connected to the first magnetic plate 321 and the second magnetic plate 322 to form a ring-shaped magnetic conducting path surrounding the drawer 21. The ring-shaped magnetic conducting path can be made of a material with low coercivity and high magnetic permeability, and the magnetic conducting path formed thereby can be used to concentrate the magnetic field and improve the uniformity of the magnetic field in the storage space, while reducing the release of the magnetic field to the outside, reducing the interference with other components outside the magnetic field preservation device 20 (such as avoiding magnetizing other components, etc.). The first magnetic plate 321, the second magnetic plate 322 and the magnetic conducting belt 323 can be made of silicon steel sheets or similar materials.
[0056] The first magnetic plate 321 and the second magnetic plate 322 cover the top and bottom of the preservation space 23 respectively, which can expand the coverage of the magnetic field and make the magnetic field more uniform.
[0057] The first magnetic element 311 and the second magnetic element can be electromagnetic coils wound by electromagnetic coils, which can be circular, oval or square in shape, and flat as a whole, with the top and bottom being planar and the thickness being significantly smaller than the outer circumference. The surrounding air duct can also remove the heat generated by the magnetic field assembly, reducing the temperature influence on the preservation space 23.
[0058] Alternatively, the magnetic field assembly in the embodiment can also use permanent magnets as magnetic field elements, such as arranging magnetic plates made of permanent magnets on the top and bottom of the drawer. In addition, electromagnetic coils and permanent magnets can also be used in combination to generate a magnetic field.
[0059] The magnetic field helps to improve the quality of the storage, can shorten the freezing time, reduce the juice loss rate and nutrient loss of food, reduce the number of microorganisms and bacteria, and prolong the preservation period. And the magnetic field preservation device 20 is configured to form a surrounding air duct that makes the air flow from the air inlet 231 to the top wall 221 of the barrel body 22, the front baffle 215 of the drawer 21, the space below the drawer bottom plate, and returns to the air return port 232, to cool the preservation space 23. Further, the magnetic field cooperates with the temperature control, uses the surrounding air duct to cool the preservation space 23, and the cold air can also timely take away the heat generated by the electromagnetic coil during work, avoiding the temperature fluctuation of the preservation space 23, and the comprehensive effect of temperature and magnetic field improves the preservation effect of food in the preservation space 23.
[0060] So far, the technical solutions of the present application have been described in combination with the foregoing embodiments. However, those skilled in the art can easily understand that the protection scope of the present application is not limited to these specific embodiments. Those skilled in the art can split and combine the technical solutions in the above embodiments without deviating from the technical principles of the present application, and can make equivalent changes or replacements to the related technical features. Any changes, equivalent replacements, improvements, etc. within the technical concept and / or technical principles of the present application shall fall within the protection scope of the present application.
Claims
1. A refrigeration device with a magnetic field preservation mechanism, characterized in that, include: The enclosure includes a storage compartment, and a cooling duct for providing cooling airflow is provided at the back of the storage compartment. A magnetic field preservation device is arranged inside the storage room and is equipped with a magnetic field component for applying a magnetic field to its internal preservation space. The magnetic field preservation device includes: The barrel body has an air inlet and an air return outlet at its rear that are connected to the cooling air duct. A drawer, which can be pulled out, is provided inside the container, defining the preservation space therein; The top wall of the barrel includes: The drawer top cover is opposite to the top opening of the drawer; An outer shell panel is disposed above the drawer top cover and has a first gap between it and the drawer top cover; A top heat insulation panel is disposed within the first interval; Furthermore, the rear wall of the barrel is spaced apart from the back of the storage compartment, and the return air vent is located in the middle of the rear wall; the top of the rear wall extends forward at an angle toward the rear end of the top wall of the barrel, and the air inlet is located on the angled extension surface.
2. The refrigeration equipment with a magnetic field preservation device according to claim 1, characterized in that, The magnetic field preservation device is configured to form a surrounding air duct that allows airflow to flow sequentially from the air inlet through the top wall of the container, the front baffle of the drawer, and the space below the bottom plate of the drawer before returning to the return air inlet, in order to cool the preservation space.
3. The refrigeration equipment with a magnetic field preservation device according to claim 2, characterized in that, The space between the top heat insulation plate and the drawer top cover forms the top section of the surrounding air duct that flows through the top wall of the barrel, and The drawer top cover is also provided with multiple through holes to connect the preservation space with the top section.
4. The refrigeration equipment with a magnetic field preservation device according to claim 3, characterized in that, The top heat insulation plate also has multiple air guide ribs on the side facing the drawer top cover, so as to guide the airflow in the top section and make the airflow flow evenly through the top section.
5. The refrigeration equipment with a magnetic field preservation device according to claim 2, characterized in that, The magnetic field assembly includes a first magnetic plate and a first magnetic element disposed on the top cover of the drawer. The first magnetic component is flat and is attached to the first magnetic plate.
6. The refrigeration equipment with a magnetic field preservation device according to claim 5, characterized in that, The magnetic field assembly includes a second magnetic conductive plate and a second magnetic component disposed on the bottom wall of the barrel. The second magnetic component is generally flat and is disposed in close contact with the second magnetic conductive plate. The first magnetic plate and the second magnetic plate are disposed opposite to each other, and the magnetic field assembly includes: A magnetic conductive tape is disposed on the side wall of the bucket body and connected to the first magnetic conductive plate and the second magnetic conductive plate to form an annular magnetic conductive path around the drawer.
7. The refrigeration equipment with a magnetic field preservation device according to claim 5, characterized in that, Also includes: A first temperature detection component and a second temperature detection component are respectively disposed inside the top cover of the drawer. The first temperature detection component is disposed near the air inlet, and the second temperature detection component is disposed near the front baffle of the drawer.
8. The refrigeration equipment with a magnetic field preservation device according to claim 3, characterized in that, The front panel of the drawer includes: partition; An air duct component is disposed on the side of the middle partition facing the preservation space, and together with the middle partition, defines the front section of the surrounding air duct that flows through the front baffle. The top of the air duct component is connected to the air inlet of the front baffle of the top section. A panel is disposed on the side of the partition opposite to the preservation space; and forms an air insulation space between the panel and the partition.
9. The refrigeration equipment with a magnetic field preservation device according to claim 8, characterized in that, The top wall of the barrel also includes: An air guide is disposed at the front end of the top wall of the barrel body. The rear part of the air guide has a first air guide port that communicates with the front end of the top section. The bottom of the air guide is opposite to the air inlet of the front baffle and has a second air guide port for connecting to the air inlet of the front baffle, thereby guiding the airflow of the top section into the front section. The bottom of the air guide and the top of the air duct are respectively set as inclined surfaces that slope downwards from front to back.
10. The refrigeration equipment with a magnetic field preservation device according to claim 8, characterized in that, The drawer bottom plate is spaced apart from the bottom wall of the barrel to form the lower space, which serves as the bottom section of the surrounding air duct; A front baffle air outlet is provided at the front of the drawer bottom plate, opposite to the bottom of the air duct component, so as to connect the bottom section.