CN112344631A - Refrigerator antibacterial steel plate door body - Google Patents
Refrigerator antibacterial steel plate door body Download PDFInfo
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- CN112344631A CN112344631A CN202011233427.8A CN202011233427A CN112344631A CN 112344631 A CN112344631 A CN 112344631A CN 202011233427 A CN202011233427 A CN 202011233427A CN 112344631 A CN112344631 A CN 112344631A
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- antibacterial
- coating
- steel plate
- film layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
Abstract
The invention discloses an antibacterial steel plate door body of a refrigerator, and relates to the technical field of antibacterial door bodies of refrigerators. The invention comprises an antibacterial panel door shell, an antibacterial door handle and an antibacterial touch screen panel; the antibacterial touch screen panel is adhered to a groove reserved on the surface of the antibacterial panel door shell through an optical adhesive; the antibacterial door handle is fixed on the upper part of the side end of the antibacterial touch screen panel through a self-tapping screw; the antibacterial touch screen panel sequentially comprises a glass substrate, a nano silver coating, a nano WO3 coating, a SiO2 film layer and a TiO2 film layer from inside to outside. The nano-silver coating has a strong disinfection and antibacterial effect, the nano WO3 coating and the TiO2 film are self-cleaning films, and organic pollutants on the surface of glass can be degraded under the photocatalysis of the TiO2 film, so that the self-cleaning effect is achieved; the hydrophilicity of the TiO2 film layer can enable water on the surface of the glass to form a water film, and the water film can penetrate into the space between the TiO2 film layer and dirt, so that the adhesion of the dirt is reduced.
Description
Technical Field
The invention belongs to the technical field of refrigerator antibacterial door bodies, and particularly relates to a refrigerator antibacterial steel plate door body.
Background
With the improvement of living standard and the continuous enhancement of health consciousness of consumers, many families use the refrigerator for mother and baby and children independently, and the demand of the special population for the antibacterial function is very high; but the door body of the refrigerator does not have an antibacterial function. At present, most refrigerators pay attention to the antibacterial and sterilization function inside the refrigerator, and the antibacterial function on the external parts of the refrigerator is rarely involved.
The existing antibacterial agents can be mainly divided into three types, namely inorganic, organic and natural. Early antibacterial agents were mostly organic in series, mostly complex compounds containing nitrogen, sulfur, chlorine and other elements, and their main species were quaternary ammonium salts, biguanides, alcohols, phenols, aldehydes, organic metals, pyridines, thiophenes and the like. The antibacterial agents have good short-term sterilization effect, but most of the antibacterial agents have the defects of poor heat resistance and stability, odor, short service life, possibility of generating bacterial drug resistance and the like; it is not suitable for the external parts of the refrigerator.
The existing methods for increasing the antibacterial performance of the steel plate comprise the following steps: "the antibacterial metal element is added to the whole substrate", for example, an antibacterial steel sheet added with copper, an antibacterial steel sheet added with silver, and the like. The refrigerator door body, especially the refrigerator door body panel for mother and infant, is required to have an appearance decoration effect, and various appearance effects such as a metal effect, an individual pattern, a geometric texture and the like are mostly realized through a laminated composite color film on the surface; the outermost layer of the laminated composite color film layer is a PET film layer, and the antibacterial agent is difficult to add and attach. The antibacterial steel plate is covered by the laminated composite color film lock, cannot be in direct contact with the hands of consumers, and the antibacterial effect is difficult to implement.
The other steel plate for improving the antibacterial performance comprises the following steps: the 'substrate surface modification' adopts the methods of ion sputtering or chemical and physical vapor deposition and the like to permeate copper, zinc, silver and the like into the surface, so that the surface modification generates antibacterial performance. The refrigerator door body, especially the refrigerator door body panel for mother and infant, is required to have an appearance decoration effect, and various appearance effects such as a metal effect, an individual pattern, a geometric texture and the like are mostly realized through a laminated composite color film on the surface; the outermost layer of the laminated composite color film layer is a PET film layer, and the antibacterial agent is difficult to add and attach. The antibacterial steel plate is covered by the laminated composite color film lock, cannot be in direct contact with the hands of consumers, and the antibacterial effect is difficult to implement.
There are also methods for increasing the antibacterial property of the steel sheet as follows: the substrate surface coating is characterized in that an organic antibacterial agent or an inorganic coating is coated on the surface of a base material. The antibacterial steel plate is directly contacted with the hands of consumers. The antibacterial effect can be exerted. However, most of the organic antibacterial agents or inorganic coatings are transparent and colorless, and the requirements of the refrigerator, especially the refrigerator door bodies for decoration of colors and patterns are difficult to meet.
In the using process of the refrigerator, mother-infant and children inevitably contact various microbes such as bacteria, fungi and the like; the microorganisms are propagated and propagated quickly by touching, so that the diet health of the mother and the baby as well as the children is affected. Therefore, with the improvement of living standard and the rising of the health and conservation demand of children, the health, safety and long-acting antibacterial function is added on the surfaces of the door body and the touch screen which are frequently touched by mothers and infants and children, and the refrigerator becomes a problem which needs to be solved for further deepening antibacterial function of the mothers and infants.
Therefore, the invention provides an antibacterial steel plate door body of a refrigerator.
Disclosure of Invention
The invention aims to provide an antibacterial steel plate door body of a refrigerator, which is used for solving the technical problems in the background technology.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an antibacterial steel plate door body of a refrigerator, which comprises: the door comprises an antibacterial panel door shell, an antibacterial door handle and an antibacterial touch screen panel; the antibacterial touch screen panel is adhered to a groove reserved on the surface of the antibacterial panel door shell through an optical adhesive; the antibacterial door handle is fixed on the upper part of the side end of the antibacterial touch screen panel through a self-tapping screw;
the antibacterial panel door shell sequentially comprises a steel plate substrate, a primer layer, a first antibacterial coating and a PE (polyethylene) protective film from inside to outside; a second antibacterial coating is sprayed on the antibacterial door handle; the second antibacterial coating is formed by adding a nano-silica silver-loaded antibacterial agent into the P-U gloss oil according to the mass percentage of 0.5-1%; the antibacterial touch screen panel sequentially comprises a glass substrate, a nano silver coating, a nano WO3 coating, a SiO2 film layer and a TiO2 film layer from inside to outside.
Preferably, the steel plate substrate is a DC53D stamping type galvanized cold-rolled steel plate with the thickness of 0.7 mm.
As a preferred technical scheme, the antibacterial coating for forming the first antibacterial coating is formed by adding a nano silver-loaded titanium dioxide antibacterial agent into a traditional coating; the proportion of the nano silver-carrying titanium dioxide antibacterial agent is 0.5-2%; the thickness of the first antibacterial coating is 10 um.
As a preferable technical scheme, the thickness of the nano-silver coating is 2-10 nm; the thickness of the nanometer WO3 coating is 1-5 nm; the thickness of the SiO2 film layer is 10-15 nm; the TiO2 film layer is a porous film layer with the thickness of 25-40 nm.
One aspect of the present invention has the following advantageous effects:
1. the nano-silver coating has a strong disinfection and antibacterial effect, the nano WO3 coating and the TiO2 film are self-cleaning films, and organic pollutants on the surface of glass can be degraded under the photocatalysis of the TiO2 film, so that the self-cleaning effect is achieved; the hydrophilicity of the TiO2 film layer can enable water on the surface of the glass to form a water film, and the water film can penetrate into the space between the TiO2 film layer and dirt, so that the adhesion of the dirt is reduced.
2. The nano WO3 coating can effectively improve the hydrophilicity of the TiO2 film layer, so that the TiO2 film layer has good super-hydrophilicity under the action of visible light, and the self-cleaning effect of the TiO2 film layer is improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an antibacterial steel plate door body of a refrigerator according to the present invention;
FIG. 2 is a partial cross-sectional view of an antimicrobial touch screen panel;
FIG. 3 is a partial cross-sectional view of the antimicrobial panel door shell;
in the drawings, the components represented by the respective reference numerals are listed below:
the antibacterial door comprises a 1-antibacterial panel door shell, 11-a steel plate substrate, 12-a primer layer, 13-a first antibacterial coating, 14-a PE protective film, a 2-antibacterial door handle, a 3-antibacterial touch screen panel, 31-a glass substrate, 32-a nano silver coating, 33-a nano WO3 coating, 34-a SiO2 film layer and 35-a TiO2 film layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open," "upper," "middle," "length," "inner," and the like are used in an orientation or positional relationship for convenience in describing the present invention and for simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-3, the present invention is an antibacterial steel plate door body for a refrigerator, comprising: an antibacterial panel door shell 1, an antibacterial door handle 2 and an antibacterial touch screen panel 3; the antibacterial touch screen panel 3 is adhered in a groove reserved on the surface of the antibacterial panel door shell 1 through optical glue; the antibacterial door handle 2 is fixed on the upper part of the side end of the antibacterial touch screen panel 3 through a self-tapping screw;
the antibacterial panel door shell 1 comprises a steel plate substrate 11, a primer layer 12, a first antibacterial coating 13 and a PE protective film 14 from inside to outside in sequence; specifically, the steel plate substrate 11 is a DC53D stamping type galvanized cold-rolled steel plate, the thickness of the steel plate substrate is 0.7mm, which is higher than that of a conventional 0.45-0.5mm steel plate, so that the requirement of stretching the four-side bent door shell is met; in addition, the antibacterial coating forming the first antibacterial coating 13 is prepared by adding a nano silver-loaded titanium dioxide antibacterial agent into a traditional coating; the proportion of the nano silver-carrying titanium dioxide antibacterial agent is 0.5-2%; the thickness of the first antibacterial coating 13 is 10 um; and the thickness of the nano silver coating 32 is 2-10 nm; the thickness of the nano WO3 coating 33 is 1-5 nm; the thickness of the SiO2 film layer 34 is 10-15 nm; the TiO2 film layer 35 is a porous film layer with the thickness of 25-40 nm;
the manufacturing process of the antibacterial panel door shell 1 comprises the following steps:
firstly, preparing an antibacterial steel plate, wherein a base material of the antibacterial steel plate is an SPCC-T0.5 cold-rolled steel plate, and the pretreatment is carried out for the first step so as to enhance the antirust capacity and the adhesive force of a subsequent antibacterial coating.
The pretreatment process comprises the following steps:
degreasing a base metal plate, washing with water and air-drying;
secondly, drying the water-based chromium-free treatment liquid after chemical pretreatment, wherein the drying temperature is 50-150 ℃;
thirdly, processing by adopting an anti-rust primer, coating the coating with the thickness of 5 mu m, and drying at the temperature of 200 ℃;
secondly, preparing the antibacterial coating and the roll-to-roll printing texture:
firstly, processing the antibacterial coating which meets the requirement of door body appearance color in a roller coating mode, wherein the thickness of the antibacterial coating is 10 mu m; the back paint roller painting is synchronously carried out in a conventional mode; drying at about 230 ℃;
manufacturing an engraving roller plate according to the requirement of the appearance pattern of the door body, carrying out mechanical embossing treatment, coating varnish and drying, wherein the embossing depth is 30-40 mu m;
thirdly, pasting a PE protective film;
and finally, performing sheet metal forming on the antibacterial steel plate, and performing the procedures of whole punching and stretching, side punching, window flanging, side corner pushing, side four edge pushing and the like according to the requirements of the door body shape to form the integrated full-enclosed door shell. Other parts which are conventionally used for foaming assembly and fixation, such as an upper decorative strip and a lower decorative strip of a door body, are arranged on the inner side surface of the door body and are not frequently contacted with a user.
A second antibacterial coating is sprayed on the antibacterial door handle 2; the second antibacterial coating is formed by adding the nano-silica silver-loaded antibacterial agent into the P-U gloss oil according to the mass percentage of 0.5-1%;
the manufacturing method of the antibacterial door handle 2 comprises the following steps:
the antibacterial door handle 2 is an ABS injection molding; the nano-silica silver-loaded antibacterial agent is added into the P U gloss oil according to the mass percentage of 0.5-1% to prepare an antibacterial coating, and the coating is colorless and transparent and is sprayed on the outer side surfaces of the antibacterial door handle 2 and a user. The positioning groove of the antibacterial door handle 2 is matched with the inner container of the door body, and the door body is fixed on the side surface of the door body by using self-tapping screws.
The antibacterial touch screen panel 3 sequentially comprises a glass substrate 31, a nano silver coating 32, a nano WO3 coating 33, a SiO2 film 34 and a TiO2 film 35 from inside to outside;
the manufacturing method of the antibacterial touch screen panel 3 is as follows:
an antibacterial touch screen panel 3, the substrate is made of glass material and is processed by CNC and surface treatment; the external surface of the panel is sequentially coated with a nano silver coating 32, a nano WO3 coating 33, a SiO2 film layer 34 and a TiO2 film layer 35 from inside to outside; bond mutually with the touch-sensitive screen of intelligent touch module through the optical cement.
In practical use, the nano-silver coating 32 has a strong disinfection and antibacterial effect, the nano WO3 coating 33 and the TiO2 film 35 are self-cleaning films, and organic pollutants on the surface of glass can be degraded under the photocatalysis of the TiO2 film 35 to achieve the self-cleaning effect; the hydrophilicity of the TiO2 film layer 35 can enable water on the surface of the glass to form a water film, and the water film can penetrate into the space between the TiO2 film layer 35 and dirt, so that the adhesion of the dirt is reduced. The nano WO3 coating 33 can effectively improve the hydrophilicity of the TiO2 film layer 34, so that the TiO2 film layer 35 has good super-hydrophilicity under the action of visible light, and the self-cleaning effect of the TiO2 film layer 35 is improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. An antibiotic steel plate door body of a refrigerator is characterized by comprising: the door comprises an antibacterial panel door shell (1), an antibacterial door handle (2) and an antibacterial touch screen panel (3); the antibacterial touch screen panel (3) is adhered to a groove reserved on the surface of the antibacterial door panel shell (1) through optical glue; the antibacterial door handle (2) is fixed on the upper part of the side end of the antibacterial touch screen panel (3) through a self-tapping screw;
the antibacterial panel door shell (1) sequentially comprises a steel plate substrate (11), a primer layer (12), a first antibacterial coating (13) and a PE protective film (14) from inside to outside;
a second antibacterial coating is sprayed on the antibacterial door handle (2); the second antibacterial coating is formed by adding a nano-silica silver-loaded antibacterial agent into the P-U gloss oil according to the mass percentage of 0.5-1%;
the antibacterial touch screen panel (3) sequentially comprises a glass substrate (31), a nano silver coating (32), a nano WO3 coating (33), a SiO2 film layer (34) and a TiO2 film layer (35) from inside to outside.
2. The refrigerator antibacterial steel plate door body according to claim 1, characterized in that the steel plate substrate (11) is a DC53D stamping type galvanized cold-rolled steel plate with a thickness of 0.7 mm.
3. The refrigerator antibacterial steel plate door body according to claim 1 or 2, characterized in that the antibacterial coating forming the first antibacterial coating (13) is formed by adding a nano silver-loaded titanium dioxide antibacterial agent into a traditional coating; the proportion of the nano silver-carrying titanium dioxide antibacterial agent is 0.5-2%; the thickness of the first antibacterial coating (13) is 10 um.
4. The refrigerator antibacterial steel plate door body according to claim 3, characterized in that the nano silver coating (32) has a thickness of 2-10 nm; the thickness of the nano WO3 coating (33) is 1-5 nm; the thickness of the SiO2 film layer (34) is 10-15 nm; the TiO2 film layer (35) is a porous film layer, and the thickness is 25-40 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011233427.8A CN112344631A (en) | 2020-11-06 | 2020-11-06 | Refrigerator antibacterial steel plate door body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011233427.8A CN112344631A (en) | 2020-11-06 | 2020-11-06 | Refrigerator antibacterial steel plate door body |
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| Publication Number | Publication Date |
|---|---|
| CN112344631A true CN112344631A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011233427.8A Pending CN112344631A (en) | 2020-11-06 | 2020-11-06 | Refrigerator antibacterial steel plate door body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063252A (en) * | 2021-04-14 | 2021-07-02 | 长虹美菱股份有限公司 | Anti-bacterial refrigerator door body with etched texture and refrigerator |
| CN113124607A (en) * | 2021-03-22 | 2021-07-16 | 深圳市瑞丰光电紫光技术有限公司 | Refrigerator with a door |
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| CN102241903A (en) * | 2011-06-09 | 2011-11-16 | 中南大学 | Method for preparing silver-loaded nanometer titanium dioxide antibiosis UV curable varnish |
| CN105291517A (en) * | 2015-03-13 | 2016-02-03 | 合肥华凌股份有限公司 | Anti-bacterial panel and refrigerator |
| CN106380084A (en) * | 2016-08-25 | 2017-02-08 | 合肥华凌股份有限公司 | Antibacterial structure, refrigerator and processing method of antibacterial toughened glass |
| CN107532843A (en) * | 2015-05-11 | 2018-01-02 | 松下知识产权经营株式会社 | Home appliance |
| CN211346036U (en) * | 2019-12-25 | 2020-08-25 | 长虹美菱股份有限公司 | Antibacterial self-cleaning touch display screen for mother and infant refrigerator |
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2020
- 2020-11-06 CN CN202011233427.8A patent/CN112344631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665634Y (en) * | 2003-11-21 | 2004-12-22 | 康佳集团股份有限公司 | Refrigerator with antibiotic materials |
| CN102241903A (en) * | 2011-06-09 | 2011-11-16 | 中南大学 | Method for preparing silver-loaded nanometer titanium dioxide antibiosis UV curable varnish |
| CN105291517A (en) * | 2015-03-13 | 2016-02-03 | 合肥华凌股份有限公司 | Anti-bacterial panel and refrigerator |
| CN107532843A (en) * | 2015-05-11 | 2018-01-02 | 松下知识产权经营株式会社 | Home appliance |
| CN106380084A (en) * | 2016-08-25 | 2017-02-08 | 合肥华凌股份有限公司 | Antibacterial structure, refrigerator and processing method of antibacterial toughened glass |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124607A (en) * | 2021-03-22 | 2021-07-16 | 深圳市瑞丰光电紫光技术有限公司 | Refrigerator with a door |
| CN113063252A (en) * | 2021-04-14 | 2021-07-02 | 长虹美菱股份有限公司 | Anti-bacterial refrigerator door body with etched texture and refrigerator |
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Application publication date: 20210209 |