Sterilization device and refrigerator

Abstract

The utility model provides a sterilization device and a refrigerator, the sterilization device comprises a drawer, the drawer is connected with a cover plate, and the drawer and the cover plate form a sealed cavity; a substrate is arranged on the cover plate, and an ultraviolet lamp is arranged on the substrate; the length of the drawer ranges from 35 cm to 52 cm, and the distance between the ultraviolet lamp and the bottom of the drawer ranges from 10 cm to 15 cm. An aluminum substrate is arranged on the substrate, and the ultraviolet lamp is connected with the aluminum substrate. The sealed cavity is formed by the drawer and the cover plate, the ultraviolet lamp is arranged in the sealed cavity to form the special sterilization area, and by setting the distance range between the ultraviolet lamp and the bottom of the drawer, the light emitting angle of the ultraviolet lamp can irradiate all positions of the drawer, so that microorganisms at the irradiated positions are killed, and the sterilization effect is improved.

Description

Technical Field

[0001] The present application relates to the field of household appliance technology, and in particular to a sterilization device and a refrigerator. Background Art

[0002] A refrigerator is a device that stores items at low temperatures. It inhibits the growth and reproduction of microorganisms by lowering the ambient temperature and controlling humidity. Although this low temperature environment can slow down the metabolic activity and reproduction rate of microorganisms, it cannot completely eliminate bacteria. Bacteria will slowly cause food to spoil inside the refrigerator, thereby producing more bacteria. Sterilization during food storage is beneficial to inhibit microbial activity, extend the shelf life of food, and improve food quality.

[0003] Sterilization technologies include high temperature sterilization, high pressure sterilization, drug sterilization, ultraviolet sterilization, ozone sterilization, ion sterilization, etc. These sterilization technologies may affect the food itself or produce odors, etc. In addition, microorganisms have certain resistance, such as high temperature resistance or low temperature resistance.

[0004] Ultraviolet rays can destroy the molecular structure of DNA or RNA in the cells of microorganisms, causing cell death of growth and / or regeneration, thus achieving the effect of sterilization and disinfection. However, since the ultraviolet germicidal lamp installed in the refrigerator is affected by the irradiation surface, the microorganisms in the unirradiated position cannot be killed, resulting in poor sterilization effect. Utility Model Content

[0005] The present application provides a sterilization device and a refrigerator to solve the problem of poor sterilization effect.

[0006] In a first aspect, the present application provides a sterilization device, comprising: a drawer, the drawer being connected to a cover plate, the drawer and the cover plate forming a sealed cavity;

[0007] The cover plate is provided with a substrate, and the substrate is provided with an ultraviolet lamp;

[0008] The length of the drawer is in the range of 35-52 cm, and the distance between the ultraviolet lamp and the bottom of the drawer is in the range of 10-15 cm;

[0009] An aluminum substrate is arranged on the substrate, and the ultraviolet lamp is connected to the aluminum substrate.

[0010] A sealed cavity is formed by the drawer and the cover plate, and an ultraviolet lamp is arranged in the sealed cavity to form a sterilization area. By setting the distance range between the ultraviolet lamp and the bottom of the drawer, the light emission angle of the ultraviolet lamp can irradiate various positions of the drawer, thereby killing the microorganisms in the irradiated position and improving the sterilization effect.

[0011] In some feasible embodiments, a white light lamp is disposed on the substrate, the white light lamp is connected to the aluminum substrate, and the wavelength of the white light lamp is in the range of 400-760 nm. The white light lamp is used to illuminate the sealed cavity.

[0012] In some feasible embodiments, a lampshade is further included, the lampshade covers the outside of the ultraviolet lamp, the cross section of the lampshade is arc-shaped, and the lampshade is connected to the substrate. The lampshade can effectively reduce the damage or pollution of the ultraviolet lamp, thereby extending the service life.

[0013] In some feasible embodiments, the ultraviolet lamp includes at least a UVC band and a UVA band, the wavelength range of the UVC band is 270-280 nm, and the wavelength range of the UVA band is 370-380 nm. The combined effect of the UVC band and the UVA band can achieve a better sterilization effect.

[0014] In some feasible embodiments, a rotating assembly is provided on the substrate, the rotating assembly includes a rotating rod and a rotation angle sensor, the rotation angle sensor is arranged on the rotating rod, the ultraviolet lamp is connected to the substrate via the rotating rod, and the rotating assembly is connected to the aluminum substrate.

[0015] By setting a rotating component, the ultraviolet lamp can be rotated to irradiate different positions of the drawer to improve the sterilization effect.

[0016] In some feasible embodiments, a connecting plate assembly is further included, the connecting plate assembly at least including a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate is connected to the base plate and forms a first preset angle with the base plate, the second connecting plate is connected to the base plate and is parallel to the base plate, the third connecting plate is connected to the base plate and forms a second preset angle with the base plate, and the first connecting plate and the third connecting plate are symmetrically arranged along the midline of the third connecting plate;

[0017] The first connecting plate, the second connecting plate and the third connecting plate are respectively connected with ultraviolet lamps.

[0018] By setting connecting plates with different preset angles and arranging ultraviolet lamps on the connecting plates, positions corresponding to different angles of the drawer can be irradiated through the connecting plate assembly, thereby improving the sterilization effect.

[0019] In some feasible embodiments, a connecting seat is provided on the substrate away from the ultraviolet lamp, and the connecting seat is a suction cup and / or a supporting frame, and the substrate is connected to the cover plate through the connecting seat.

[0020] The ultraviolet lamp is conveniently connected to the cover plate through the connecting seat.

[0021] In some feasible embodiments, a sealing ring is provided on the cover plate, and the substrate is arranged in the sealing ring.

[0022] In some feasible embodiments, a guide rail is provided on the drawer away from the cover plate.

[0023] In a second aspect, the present application provides a refrigerator, comprising: a box body and the sterilization device described in the first aspect, wherein the box body includes at least one sterilization device, and the sterilization device is connected to the box body via a guide rail.

[0024] It can be seen from the above technical solutions that the present application provides a sterilization device and a refrigerator, the sterilization device comprising: a drawer, a cover plate connected to the drawer, the drawer and the cover plate forming a sealed cavity; a substrate is provided on the cover plate, an ultraviolet lamp is provided on the substrate; the length of the drawer ranges from 35 to 52 cm, the distance between the ultraviolet lamp and the bottom of the drawer ranges from 10 to 15 cm; an aluminum substrate is provided on the substrate, and the ultraviolet lamp is connected to the aluminum substrate. A sealed cavity is formed by the drawer and the cover plate, and the ultraviolet lamp is arranged in the sealed cavity to form a sterilization zone, and by setting the distance range between the ultraviolet lamp and the bottom of the drawer, the light-emitting angle of the ultraviolet lamp can irradiate various positions of the drawer, thereby killing the microorganisms at the irradiated position and improving the sterilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the sterilization device shown in this embodiment;

[0027] Figure 2 This is a schematic diagram of the substrate structure shown in this embodiment;

[0028] Figure 3 This is a schematic diagram of the structure of a sterilization device according to another embodiment.

[0029] Illustration Description:

[0030] Among them, 11 is an ultraviolet lamp, 12 is a lampshade, 13 is a white light lamp, 14 is a base plate, 15 is a drawer, 16 is a first connecting plate, 17 is a second connecting plate, and 18 is a third connecting plate. DETAILED DESCRIPTION

[0031] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0032] Sterilization technologies include high-temperature sterilization, high-pressure sterilization, ultraviolet sterilization, ozone sterilization, ion sterilization, etc. High-temperature sterilization will cause changes in food color and flavor and loss of nutrients. The ultra-high pressure equipment used for high-pressure sterilization is large in size. Ozone sterilization is difficult to achieve internal sterilization for densely structured materials, and the smell of ozone is unpleasant. High concentrations of ozone are not good for human health. Ion sterilization has the problem of inactivation. This deactivation phenomenon is because some adsorbates preferentially adsorb on the active sites of the catalyst, or form strong chemical adsorption bonds, or react chemically with the active center, resulting in reduced catalyst activity or even complete loss.

[0033] Microorganisms all have a certain degree of resistance. For example, high-temperature-resistant organisms include the mad cow virus, which is still contagious at 360°C, and the hepatitis B virus, which takes 10 minutes to kill at 100°C and 10 hours at 65°C. Low-temperature-resistant organisms include most viruses, such as the avian influenza virus, which can survive for 40 months at -20°C. Drug-resistant organisms include super bacteria.

[0034] Ultraviolet light includes three bands, namely long-wave band (UVA320-400nm), medium-wave band (UVB280-320nm), and short-wave band (UVC100-280nm). The bactericidal effect of ultraviolet light is provided by short-wave band UVC, which has high photon energy and can penetrate the cell membrane and nucleus of bacteria, destroy the structure of its DNA, and cause the death of growing cells and regenerative cells, thereby playing a bactericidal role. However, if the ultraviolet lamp is directly set in the refrigerator drawer, due to the structure of the drawer, the ultraviolet lamp cannot irradiate all positions in the area, resulting in poor bactericidal effect.

[0035] To solve the problem of poor sterilization effect, see Figure 1 , Figure 2 Some embodiments of the present application provide a sterilization device, including: a drawer 15, the drawer 15 is a rectangular structure, the rectangular structure is a hollow rectangular structure, a cover plate is connected to the drawer 15, the cover plate covers the hollow rectangular structure, the drawer 15 and the cover plate form a sealed cavity, and the sealed cavity can be used to place different foods.

[0036] A base plate 14 is provided on the cover plate, and an ultraviolet lamp 11 is provided on the base plate 14 . The area of ​​the base plate 14 is smaller than that of the cover plate, and the base plate 14 is used for placing the ultraviolet lamp 11 .

[0037] The light emitting angle of the ultraviolet lamp 11 is 120°. The irradiation distance affects the sterilization effect. If the distance is too large, the light dose cannot meet the sterilization requirements; if the distance is too small, the illumination range is too small. Therefore, it is necessary to adjust the appropriate illumination distance according to the irradiation area. The length of the drawer 15 ranges from 35 to 52 cm. The substrate 14 is set at the center of the cover plate. The point where the ultraviolet lamp 11 irradiates vertically is the midpoint of the length of the drawer 15. Then, according to the range of 17.3 to 26 cm from the point where the ultraviolet lamp 11 irradiates vertically to the side of the drawer 15, the distance between the ultraviolet lamp 11 and the bottom of the drawer 15 is determined to be 10 to 15 cm. The light emitting angle of the ultraviolet lamp 11 is 120°, which allows the ultraviolet lamp 11 to irradiate the entire area of ​​the bottom surface of the drawer 15 to improve the sterilization effect.

[0038] An aluminum substrate is also provided on the substrate 14, and the ultraviolet lamp 11 is connected to the aluminum substrate. The aluminum substrate is composed of a three-layer structure, namely a circuit layer, an insulating layer and a metal base layer. The power supply part of the ultraviolet lamp 11, such as an LED chip or other light-emitting elements, is welded or connected to the circuit layer of the aluminum substrate. The circuit on the aluminum substrate enables current to be conducted from the power supply through the aluminum substrate to the power supply part of the ultraviolet lamp 11, thereby lighting the ultraviolet lamp 11.

[0039] In some embodiments, a white light lamp 13 is provided on the substrate 14, and the white light lamp 13 is connected to the aluminum substrate. The wavelength range of the white light lamp 13 is 400-760nm. The white light lamp 13 and the ultraviolet lamp 11 can be controlled in parallel through the aluminum substrate. When the refrigerator door is open, the white light lamp 13 is on and the ultraviolet lamp 11 is off; when the refrigerator door is opened and then closed, the white light lamp 13 is off, and the ultraviolet lamp 11 is turned on for 3-120 minutes and then turned off; when the refrigerator door is in a closed state for a long time, the ultraviolet lamp 11 is turned on for 3-120 minutes at intervals of 60-360 minutes and then turned off, which can achieve periodic sterilization of food stored in the refrigerator and inhibit bacterial reproduction.

[0040] Connecting the white light lamp 13 and the ultraviolet lamp 11 in parallel to the same circuit board can achieve circuit optimization, simplify the circuit, and save installation space.

[0041] In some embodiments, the ultraviolet lamp 11 includes at least a UVC band and a UVA band, the wavelength range of the UVC band is 270-280 nm, and the wavelength range of the UVA band is 370-380 nm. The UVC band uses its shorter wavelength (270-280 nm) to destroy the molecular structure of DNA or RNA in the cells of microorganisms, thereby achieving the effect of killing bacteria. The bactericidal effect of the UVA band is weaker, but the penetration ability is stronger, and it can penetrate some glass and plastic. The UVA band can also realize light dominance and improve the working identification state of the ultraviolet lamp 11.

[0042] To protect the ultraviolet lamp 11, in some embodiments, a lampshade 12 is further included, the lampshade 12 covers the ultraviolet lamp 11, the cross section of the lampshade 12 is arc-shaped, and the lampshade 12 is connected to the substrate 14. The lampshade 12 can be made of quartz glass, which has a high transmittance to all ultraviolet bands, especially the UVC band. The ultraviolet lamp 11 can penetrate the lampshade 12 more effectively to maintain the sterilization effect.

[0043] Due to the different sizes of drawers 15, in order to make the ultraviolet lamp 11 suitable for different drawers 15, in some embodiments, a rotating component is provided on the base plate 14, and the rotating component includes a rotating rod and a rotation angle sensor. The rotation angle sensor is arranged on the rotating rod. The ultraviolet lamp 11 is connected to the base plate 14 through the rotating rod, and the rotating component is connected to the aluminum base plate.

[0044] The side wall of the drawer 15 serves as a fixed reference point for the rotation angle sensor. When the object rotates, the relative position between the sensing element and the reference point will change, thereby generating an electrical signal. This electrical signal can be converted into a numerical value of the rotation angle. The rotation angle can be controlled by setting the numerical value, thereby making the irradiation area of ​​the ultraviolet lamp 11 wider and improving the sterilization effect.

[0045] See also Figure 3 In some embodiments, a connecting plate assembly is further included, and the connecting plate assembly includes at least a first connecting plate 16, a second connecting plate 17 and a third connecting plate 18. The first connecting plate 16 is connected to the substrate 14 and forms a first preset angle with the substrate 14. The second connecting plate 17 is connected to the substrate 14 and is parallel to the substrate 14. The third connecting plate 18 is connected to the substrate 14 and forms a second preset angle with the substrate 14. The first connecting plate 16 and the third connecting plate 18 are symmetrically arranged along the midline of the third connecting plate 18. The first connecting plate 16, the second connecting plate 17, and the third connecting plate 18 are respectively connected to the ultraviolet lamp 11.

[0046] The ultraviolet lamps 11 on the first connecting plate 16 irradiate one side wall and one side area of ​​the bottom of the drawer 15, the ultraviolet lamps 11 on the second connecting plate 17 irradiate the bottom of the drawer 15, and the ultraviolet lamps 11 on the third connecting plate 18 irradiate the other side wall and the other side area of ​​the bottom of the drawer 15; the ultraviolet lamps 11 on the first connecting plate 16, the second connecting plate 17 and the third connecting plate 18 can irradiate the entire area of ​​the drawer 15. When food is placed in the drawer 15, all the ultraviolet lamps 11 can be turned on to provide a sterilization effect.

[0047] During the sterilization process, the ultraviolet lamp 11 has a destructive effect on many polymer materials, and the drawer 15 is made of polymer materials. In order to protect the inner wall of the drawer 15 from being damaged by the ultraviolet lamp 11, anti-UV material needs to be added to the inner wall of the drawer 15. The anti-UV material can effectively absorb or reflect ultraviolet rays, reduce its direct impact on the inner wall of the drawer 15, and thus extend the service life of the drawer 15.

[0048] In actual use, the cover plate can be a glass shelf. To facilitate fixing the ultraviolet lamp 11 on the glass shelf, in some embodiments, a connecting seat is provided on the substrate 14 away from the ultraviolet lamp 11. The connecting seat is a suction cup and / or a support frame, and the substrate 14 is connected to the cover plate through the connecting seat. The substrate 14 can be fixed to the glass shelf by the suction cup and can be flexibly disassembled to facilitate adjusting the irradiation position of the ultraviolet lamp 11 to improve the sterilization effect.

[0049] In some embodiments, a sealing ring is provided on the cover plate, and the base plate 14 is disposed inside the sealing ring, and the size of the sealing ring matches the size of the opening of the drawer 15 .

[0050] In some embodiments, a guide rail is provided on the drawer 15 away from the cover plate, and the guide rail can facilitate the drawer 15 to be pulled out to take out food.

[0051] Based on the above-mentioned sterilization device, some embodiments of the present application further provide a refrigerator, including: a box and a sterilization device, wherein the box includes at least one sterilization device, and the sterilization device is connected to the box through a guide rail. Exemplarily, the box includes a refrigerating chamber and a freezing chamber, and three sterilization devices are arranged in the refrigerating chamber, and the three sterilization devices are stacked.

[0052] It can be seen from the above technical solutions that the present application provides a sterilization device and a refrigerator, the sterilization device comprising: a drawer 15, a cover plate connected to the drawer 15, the drawer 15 and the cover plate forming a sealed cavity; a substrate 14 is provided on the cover plate, and an ultraviolet lamp 11 is provided on the substrate 14; the length of the drawer 15 ranges from 35 to 52 cm, and the distance between the ultraviolet lamp 11 and the bottom of the drawer 15 ranges from 10 to 15 cm; an aluminum substrate is provided on the substrate 14, and the ultraviolet lamp 11 is connected to the aluminum substrate. A sealed cavity is formed by the drawer 15 and the cover plate, and the ultraviolet lamp 11 is arranged in the sealed cavity to form a sterilization zone, and by setting the distance range between the ultraviolet lamp 11 and the bottom of the drawer 15, the light emitting angle of the ultraviolet lamp 11 can irradiate various positions of the drawer 15, thereby killing the microorganisms at the irradiated position, thereby improving the sterilization effect.

[0053] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A sterilization device, characterized in that: include: A drawer, wherein a cover plate is connected to the drawer, and the drawer and the cover plate form a sealed cavity; The cover plate is provided with a substrate, and the substrate is provided with an ultraviolet lamp; The length of the drawer ranges from 35 to 52 cm, and the distance between the ultraviolet lamp and the bottom of the drawer ranges from 10 to 15 cm; An aluminum substrate is arranged on the substrate, and the ultraviolet lamp is connected to the aluminum substrate.

2. The sterilization device according to claim 1, characterized in that: A white light lamp is arranged on the substrate, the white light lamp is connected to the aluminum substrate, and the wavelength range of the white light lamp is 400-760nm.

3. The sterilization device according to claim 1, characterized in that: It also includes a lampshade, which covers the ultraviolet lamp, has an arc-shaped cross section, and is connected to the substrate.

4. The sterilization device according to claim 1, characterized in that: The ultraviolet lamp at least includes a UVC band and a UVA band, the wavelength range of the UVC band is 270-280 nm, and the wavelength range of the UVA band is 370-380 nm.

5. The sterilization device according to claim 1, characterized in that: A rotating assembly is arranged on the substrate, and the rotating assembly comprises a rotating rod and a rotating angle sensor, and the rotating angle sensor is arranged on the rotating rod. The ultraviolet lamp is connected to the substrate via the rotating rod, and the rotating assembly is connected to the aluminum substrate.

6. The sterilization device according to claim 1, characterized in that: Also includes a connecting plate assembly, the connecting plate assembly includes at least a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate is connected to the base plate and forms a first preset angle with the base plate, the second connecting plate is connected to the base plate and is parallel to the base plate, the third connecting plate is connected to the base plate and forms a second preset angle with the base plate, and the first connecting plate and the third connecting plate are symmetrically arranged along the midline of the third connecting plate; The first connecting plate, the second connecting plate and the third connecting plate are respectively connected with ultraviolet lamps.

7. The sterilization device according to claim 1, characterized in that: A connecting seat is provided on the substrate away from the ultraviolet lamp. The connecting seat is a suction cup and / or a supporting frame. The substrate is connected to the cover plate via the connecting seat.

8. The sterilization device according to claim 1, characterized in that: The cover plate is provided with a sealing ring, and the substrate is arranged in the sealing ring.

9. The sterilization device according to claim 1, characterized in that: A guide rail is arranged on the drawer away from the cover plate.

10. A refrigerator, characterized in that: include: A box body and the sterilization device according to any one of claims 1 to 9, wherein the box body includes at least one sterilization device, and the sterilization device is connected to the box body through a guide rail.

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