Drawer for a refrigeration appliance and refrigeration appliance

Abstract

The application provides a drawer for a refrigeration and freezing device and the refrigeration and freezing device. The drawer comprises a drawer body and a drawer end cover arranged at the front end of the drawer body, and the drawer end cover comprises: a first transparent substrate vertically arranged; a first structure layer having a heating function, which is arranged on the outer surface of the first transparent substrate; and a second structure layer having a hydrophilic function, which is arranged on the outer surface of the first structure layer. The drawer for the refrigeration and freezing device provided by the application realizes the automatic defogging function of the drawer end cover, so that the user can conveniently identify the food materials without pulling open the drawer, then quickly pull open the drawer to take the food materials, reduce the temperature fluctuation in the drawer, and improve the storage quality of the food materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration storage, in particular to a drawer for a refrigeration and freezing device. BACKGROUND

[0002] With the development of science and technology, the development of social economy and the improvement of people's living standards, high quality of life has become a necessary requirement for users, especially refrigerators, freezers and other refrigeration and freezing devices have become necessities in family life, and users often store most of the food in the refrigerator.

[0003] Due to the low-temperature storage environment inside the refrigerator, freezer and other refrigeration and freezing devices, the temperature of the internal drawer is usually lower than the dew point temperature of the indoor, so when the user opens the refrigerator door, a layer of water mist is condensed on the surface of the transparent front cover of the internal drawer, which makes it difficult to distinguish the food inside the drawer, and the user can only further open the drawer to find it. This deviates from the original intention of the transparent design of the drawer front cover: without opening the drawer, the user can easily identify the food in the drawer, and avoid the leakage of cold air in the drawer, which causes the temperature fluctuation in the drawer. The condensation of water mist will bring two big problems and inconvenience to the user: 1. Inconvenience in identifying food; 2. Opening the drawer to find food will cause the drawer to be in an open state for a long time, which will cause large temperature fluctuations in the drawer and is not conducive to food storage. SUMMARY

[0004] In view of the above problems, the present application is proposed to provide a drawer for a refrigeration and freezing device which overcomes the above problems or at least partially solves the above problems, realizes the defogging function of the drawer end cover, so that the user can easily identify the food without opening the drawer, then quickly open the drawer to get the food, reduce the temperature fluctuation in the drawer, and improve the storage quality of the food.

[0005] Specifically, the present application provides a drawer, which comprises a drawer body and a drawer end cover arranged at the front end of the drawer body, the drawer end cover comprising:

[0006] a first transparent substrate vertically arranged;

[0007] a first structure layer having a heating function, the first structure layer being arranged on the outer surface of the first transparent substrate;

[0008] a second structure layer having a hydrophilic function, the second structure layer being arranged on the outer surface of the first structure layer.

[0009] Optionally, the drawer further comprises a water mist detection device configured to determine whether the outer surface of the second structure layer has water mist.

[0010] Optionally, the drawer further comprises:

[0011] A drawer control device;

[0012] A power supply coil arranged on the drawer body and electrically connected to the drawer control device and the first structural layer through a cable; the power supply coil cooperates with an induction coil arranged on the cabinet or door body of the refrigeration and freezing device; and

[0013] A water mist determination coil arranged on the drawer body and electrically connected to the drawer control device and the water mist detection device through a cable; the water mist determination coil cooperates with an induction coil arranged on the cabinet or door body of the refrigeration and freezing device.

[0014] Optionally, the second structural layer covers part of the first structural layer, so that the first structural layer has a detection area;

[0015] The water mist detection device has a detection part arranged on the detection area to detect whether the side surface of the drawer end cover with the second structural layer has water mist.

[0016] Optionally, part of the second structural layer is ablated by laser to expose the detection area;

[0017] The first structural layer is a conductive layer, and the detection part is laser etched on the detection area.

[0018] Optionally, the second structural layer covers part of the first structural layer, so that the first structural layer has two connecting electric areas, and a conductive electrode is arranged at each connecting electric area;

[0019] Part of the second structural layer is ablated by laser to expose the connecting electric area, and a layer of conductive metal is electroplated on the connecting electric area to form a conductive electrode.

[0020] Optionally, the first transparent substrate includes a glass layer, a transparent resin layer, or a transparent plastic layer;

[0021] The material of the first structural layer includes nano indium tin oxide particles and / or nano silver particles;

[0022] The material of the second structural layer includes a TiO2 / SiO2 nano particle mixture sol or a TiO2 nano particle sol.

[0023] Optionally, the drawer end cover further comprises a second transparent substrate arranged vertically and arranged on the inner side of the first transparent substrate; the second transparent substrate is in contact with or spaced apart from the first transparent substrate;

[0024] A third structural layer is arranged between the first structural layer and the second structural layer.

[0025] Optionally, the drawer end cover further comprises:

[0026] Two vertical support edges are arranged at two ends of the first transparent substrate respectively;

[0027] Two connecting electrodes are arranged in the two vertical support edges respectively and are in contact with the two conductive electrodes respectively; and

[0028] A horizontal support edge is arranged at an upper end of the first transparent substrate, and a metal contact is arranged in the horizontal support edge, and the metal contact is in contact with the electric connection contact of the detection part.

[0029] The application further provides a refrigeration and freezing device, which comprises a cabinet and a door body, the cabinet has a storage compartment, and the door body is used for opening and closing the storage compartment, and the device is characterized in that the device further comprises any one of the drawers, and the drawer is arranged in the storage compartment.

[0030] The drawer end cover comprises a first transparent substrate, a first structural layer and a second structural layer. The first transparent substrate is arranged vertically. The first structural layer is arranged on the outer surface of the first transparent substrate. The second structural layer is arranged on the outer surface of the first structural layer. The second structural layer has a hydrophilic function, so that the water mist shape of the outer surface of the second structural layer is kept as a water curtain. The first structural layer has a heating function, and heat is transmitted to the water mist through the second structural layer, so that the water mist is heated and evaporated. The defogging function of the drawer end cover can be realized, so that the user can conveniently identify the drawer goods without pulling open the drawer.

[0031] The above and other objects, advantages and features of the application will become more apparent from the following detailed description of some embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] Some specific embodiments of the application will be described in detail below with reference to the attached drawings. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the drawings:

[0033] Figure 1 is a schematic structural diagram of a drawer according to an embodiment of the application;

[0034] Figure 2 and Figure 3 are schematic sectional views of drawer end covers according to two embodiments of the application;

[0035] Figure 4is a schematic exploded view of a drawer according to an embodiment of the present application;

[0036] Figure 5 is a schematic control circuit diagram of a drawer according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] The drawer and refrigerator-freezer according to embodiments of the present application will be described below with reference to the drawings. Figures 1 to 5 In the description of the embodiments, it will be understood that the terms "first", "second", etc. are used only to describe and distinguish different components, and are not necessarily used to describe a relative importance or an implied sequence of the features. Thus, a feature defined with a "first" or "second" can include one or more of the features and can be explicitly or implicitly included or involved in one or more of the features. In the description of the embodiments, the term "a plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a certain feature "includes or comprises" a certain or certain features, unless otherwise specifically described, it indicates that other features are not excluded and can further include other features.

[0038] Unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", "coupled", etc. should be understood broadly, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through an intermediate medium, can be internal connection of two elements or interaction relationship between two elements, unless specifically defined otherwise. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0039] In addition, in the description of the embodiments, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the embodiments, the first feature "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "under", or "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0040] In the description of the present embodiments, references to "an embodiment", "some embodiments", "an example", "specific examples" or "some examples" mean that a particular feature, structure, material or characteristic is included in at least one embodiment or example of the present application. The appearances of the phrases "in some embodiments", "in an embodiment", "in one embodiment" or "in some examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0041] Figure 1 is a schematic structural diagram of a drawer according to an embodiment of the present application, as Figure 1 shown and with reference to Figures 2 to 5 , an embodiment of the present application provides a drawer. The drawer comprises a drawer body 110 and a drawer end cover 120 arranged at the front end of the drawer body 110. The drawer end cover 120 comprises a first transparent substrate 121, a first structure layer 122 and a second structure layer 123. The first transparent substrate 121 is arranged vertically. The first structure layer 122 has a heating function, and the first structure layer 122 is arranged on the outer surface of the first transparent substrate 121. The second structure layer 123 has a hydrophilic function, and is arranged on the outer surface of the first structure layer 122.

[0042] The second structure layer 123 has a hydrophilic function, so that the shape of the water mist on the outer surface of the second structure layer 123 is maintained as a layer of water curtain. The first structure layer 122 has a heating function, and heat is transmitted to the water mist through the second structure layer 123, so that the water mist is heated and evaporated. Thus, the defogging function of the drawer end cover 120 is realized, so that the user can conveniently identify the drawer contents without opening the drawer.

[0043] In some embodiments of the present application, as Figure 4 shown, the drawer further comprises a water mist detection device 130, which is configured to determine whether the outer surface of the second structure layer 123 has water mist. When the water mist detection device 130 detects that the outer surface of the second structure layer 123 has water mist, an induction signal is sent out.

[0044] In some embodiments of the present application, as Figure 4 shown, the drawer comprises a drawer control device 160, a power supply coil 140 and a water mist determination coil 150. The power supply coil 140 is arranged on the drawer body 110 and is electrically connected to the drawer control device 160 and the first structure layer 122 through a cable. The power supply coil 140 cooperates with an induction coil 141 arranged correspondingly on the cabinet or door body of the refrigeration and freezing device. The water mist determination coil 150 is arranged on the drawer body 110 and is electrically connected to the drawer control device 160 and the water mist detection device 130 through a cable. The water mist determination coil 150 cooperates with an induction coil 151 arranged correspondingly on the cabinet or door body of the refrigeration and freezing device.

[0045] As shown in Figure 4 and Figure 5 When the refrigerator-freezer is in the closed state, the power supply coil 140 supplies power to the corresponding inductive coil 141, and the power supply coil 140 is powered through the magnetic field transmission. When water mist appears on the outer surface of the second structural layer of the drawer, the water mist detection device 130 and the water mist determination coil 150 are in conduction, so that the inductance in the corresponding inductive coil 151 on the cabinet or door body of the refrigerator-freezer changes. After the drawer control device 160 or the control device 200 of the refrigerator-freezer detects the change in inductance, the first structural layer 122 is powered to heat, achieving the heating and demisting of the outer surface of the second structure. Since the drawer control device 160, the power supply coil 140 and the water mist determination coil 150 adopt a wireless power supply mode, they do not need to be electrically connected to the power supply device 300 through a cable, reducing the circuit faults such as poor contact at the cable connection part. The control device 200 of the refrigerator-freezer collects information about the demisting of the drawer, realizing the smooth information flow and control of each component of the refrigerator-freezer.

[0046] In some embodiments of the present application, the second structural layer 123 covers part of the first structural layer 122, so that the first structural layer 122 has a detection area. The water mist detection device 130 has a detection part arranged in the detection area to detect whether the side surface of the drawer end cover 120 having the second structural layer 123 has water mist. Specifically, the side surface of the drawer end cover 120 having the second structural layer 123 is the outer surface of the drawer end cover 120.

[0047] That is, the part of the first structural layer 122 not covered by the second structural layer 123 is the detection area. When the side surface of the second structural layer 123 has water mist, the detection part in the detection area of the first structural layer 122 detects the water mist, so that the circuit is connected and an electrical signal is sent.

[0048] In some embodiments of the present application, a part of the second structural layer 123 is ablated by laser to expose the detection area. The first structural layer 122 is a conductive layer, and the detection part is laser etched in the detection area. The detection part is formed by laser ablation of the conductive layer, and there is no problem of external module. Since the thickness of the conductive layer is only a few tens of nanometers, after laser etching, the user cannot visually distinguish it, which does not affect the appearance of the drawer end cover 120.

[0049] In some embodiments of the present application, the detection part comprises at least one first electrode and at least one second electrode, which are arranged on the detection area. The first electrode and the second electrode are in a disconnected state and are connected under the action of water when the surface of the second structure layer 123 has water mist. The direct detection of the conductivity of the water mist significantly improves the accuracy of the detection.

[0050] For example, the at least one first electrode and the at least one second electrode are arranged to constitute an interdigital electrode, which is arranged on the detection area. The interdigital electrode is a circuit arranged in a cross pattern without connection in the middle, and the normal state is that the two ends of the circuit are not connected. When the surface of the plate-shaped object has dew, the detection area will also condense water droplets. When the size of the water droplets exceeds the spacing of the circuit, the water droplets act as a bridge between the circuits, and the first electrode and the second electrode are connected. The interdigital electrode is sensitive and can accurately control the connection and disconnection of the first electrode and the second electrode. Moreover, the interdigital electrode has a small volume and does not affect the appearance of the plate-shaped object. In particular, when the plate-shaped object is a transparent structure, the interdigital electrode does not affect the line of sight of the human body.

[0051] Further, the at least one first electrode and the at least one second electrode are arranged apart from the boundary of the detection area, that is, the area within the isolation boundary is completely ablated except the conductive layer of the detection part, so as to prevent the at least one first electrode and the at least one second electrode from interfering with each other and being connected. The detection part is processed on the conductive layer, that is, the heating layer and the detection layer are the same layer, which has obvious advantages, such as thinner coating thickness, better light transmission, and the need to break through the traditional way of thinking for the low-cost and reliable detection part structure and installation position.

[0052] In some embodiments of the present application, the second structure layer 123 covers part of the first structure layer 122, so that the first structure layer 122 has two connecting electric areas, and each connecting electric area is provided with a conductive electrode 124. Part of the second structure layer 123 is ablated by laser to expose the connecting electric area, and a layer of conductive metal is electroplated on the connecting electric area to form the conductive electrode 124.

[0053] For example, the second structure layer 123 is ablated by laser to expose two long strip-shaped conductive layers as shown in Figure 4 Then a layer of conductive metal is electroplated on the two long strip-shaped conductive layers to form two conductive electrodes 124. Preferably, the conductive metal is gold or brass. The two conductive electrodes 124 are in contact with the electrodes at both ends of the drawer end cover 120 to form a loop.

[0054] In some embodiments of the present application, the first transparent substrate 121 comprises a glass layer, a transparent resin layer or a transparent plastic layer. The material of the first structural layer 122 is nano-conductive powder / particle, specifically including nano-indium tin oxide particles and / or nano-silver particles. The thickness of the first structural layer 122 can be 50-80 nm. Since the nano-conductive particles in the conductive layer are uniformly distributed on the surface of the first transparent substrate 121, the surface of the first transparent substrate 121 is uniformly heated, which can ensure that the water curtain layer condensed on the surface is uniformly heated, and the water vapor in each area is evaporated synchronously, without the problem of uneven temperature when the heating wire is heated.

[0055] The material of the second structural layer 123 comprises TiO2 / SiO2 nano-particle mixture sol or TiO2 nano-particle sol. The thickness of the second structural layer 123 is 50-100 nm. The thickness of the first structural layer 122 and the second structural layer 123 is very thin, so as not to affect the transparency of the first transparent substrate 121.

[0056] Further, a third structural layer is arranged between the first structural layer 122 and the second structural layer 123, for example, a corresponding protective transparent coating can be added according to different production processes. Preferably, the maximum distance between the inner surface of the first structural layer 122 and the outer surface of the second structural layer 123 is within 250 nm, which does not affect the transparency of the first transparent substrate 121.

[0057] In some embodiments of the present application, as shown in Figure 3 The drawer end cover 120 further comprises a second transparent substrate 125, which is vertically arranged and arranged on the inner side of the first transparent substrate 121. The second transparent substrate 125 is in contact with or spaced apart from the first transparent substrate 121. The arrangement of the second transparent substrate 125 increases the thickness of the drawer end cover 120, improves the heat preservation effect, and makes the structure more stable. Preferably, the first transparent substrate 121 and the second transparent substrate 125 are spaced apart to form a hollow layer 126, which is filled with inert gas, so as to improve the heat preservation effect. More preferably, the second transparent substrate 125 and the first transparent substrate 121 are made of organic glass PMMA, which has a lower thermal conductivity and can also improve the heat preservation effect.

[0058] In some embodiments of the present application, as shown in Figure 4As shown, the drawer end cover 120 further comprises two vertical support edges 127, two connecting electrodes 128 and a horizontal support edge 129. The two vertical support edges 127 are respectively arranged at two ends of the first transparent substrate 121. The two connecting electrodes 128 are respectively arranged in the two vertical support edges 127 and respectively contact and conduct electricity with the two conductive electrodes 124. The horizontal support edge 129 is arranged at the upper end of the first transparent substrate 121, and a metal contact is arranged in the horizontal support edge 129, which contacts and conducts electricity with the electric connection contact of the detection part. The two connecting electrodes 128 in the two vertical support edges 127 are respectively electrically connected with the two conductive electrodes 124 on the first structure layer 122, and the two connecting electrodes 128 are further electrically connected with the power supply coil 140 and the drawer control device 160 to form a loop.

[0059] In some embodiments of the present application, the first structure layer 122 is arranged on the first transparent substrate 121 by using a PVD evaporation method, a chemical vapor deposition or a magnetron sputtering method. Preferably, the PVD evaporation method is used to uniformly heat the first structure layer 122 as a whole. The second structure layer 123 is arranged on the first structure layer 122 by using a dip-coating film forming process.

[0060] The embodiments of the present application further provide a refrigeration and freezing device, which comprises a cabinet and a door body, the cabinet has a storage compartment, the door body is used for opening and closing the storage compartment, and the device further comprises any one of the drawers in the above embodiments, and the drawer is arranged in the storage compartment.

[0061] At this point, those skilled in the art should recognize that, although the present application has been shown and described in detail in the above embodiments, many other variations or modifications can be directly determined or deduced according to the disclosure of the present application without departing from the spirit and scope of the present application, which conform to the principles of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.

Claims

1. A drawer for a refrigeration-freezing appliance, characterized in that, The drawer comprises a drawer body and a drawer end cover arranged at the front end of the drawer body, and the drawer end cover comprises: a first transparent substrate arranged vertically; a first structure layer having a heating function, arranged on the outer surface of the first transparent substrate; a second structure layer having a hydrophilic function, arranged on the outer surface of the first structure layer; a water mist detection device configured to determine whether the outer surface of the second structure layer has water mist; the second structure layer covers part of the first structure layer, so that the first structure layer has a detection area; the water mist detection device has a detection part arranged in the detection area to detect whether the side surface of the drawer end cover having the second structure layer has water mist; a part of the second structure layer is ablated by laser to expose the detection area; the first structure layer is a conductive layer, and the detection part is laser etched on the detection area; the second structure layer covers part of the first structure layer, so that the first structure layer has two connecting electric areas, and a conductive electrode is arranged at each connecting electric area; a part of the second structure layer is ablated by laser to expose the connecting electric area, and a layer of conductive metal is electroplated on the connecting electric area to form a conductive electrode.

2. The drawer of claim 1, wherein Further comprising: drawer control device; power supply coil arranged on the drawer body and electrically connected to the drawer control device and the first structure layer through a cable; the power supply coil cooperates with an induction coil arranged on the cabinet or door body of the refrigeration and freezing device; and water mist determination coil arranged on the drawer body and electrically connected to the drawer control device and the water mist detection device through a cable; the water mist determination coil cooperates with an induction coil arranged on the cabinet or door body of the refrigeration and freezing device.

3. The drawer according to claim 1, wherein: the first transparent substrate comprises a glass layer, a transparent resin layer or a transparent plastic layer; the material of the first structure layer comprises nano indium tin oxide particles and / or nano silver particles; the material of the second structure layer comprises a mixture of TiO2 / SiO2 nano particles sol or TiO2 nano particle sol.

4. The drawer according to claim 1, wherein: the drawer end cover further comprises a second transparent substrate arranged vertically and arranged on the inner side of the first transparent substrate; the second transparent substrate is in contact with or spaced apart from the first transparent substrate; a third structure layer is arranged between the first structure layer and the second structure layer. The drawer end cover further comprises:

5. The drawer of claim 1, wherein, two vertical support edges arranged at the two ends of the first transparent substrate, respectively; two connecting electrodes arranged in the two vertical support edges, respectively, and in contact with the two conductive electrodes, respectively; and a horizontal support edge arranged at the upper end of the first transparent substrate, the horizontal support edge has a metal contact point arranged therein, and the metal contact point is in contact with the electric connection contact point of the detection part. ​ 6. A cold storage freezing appliance comprising a cabinet having a storage compartment therein and a door for opening and closing the storage compartment, characterised in that, Also included is the drawer of any one of claims 1 to 5, disposed within the storage compartment.

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