CN110868818B - Smart home devices's protecting sheathing with moisture resistance - Google Patents
Smart home devices's protecting sheathing with moisture resistance Download PDFInfo
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- CN110868818B CN110868818B CN201911190863.9A CN201911190863A CN110868818B CN 110868818 B CN110868818 B CN 110868818B CN 201911190863 A CN201911190863 A CN 201911190863A CN 110868818 B CN110868818 B CN 110868818B
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- ferroferric oxide
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
Abstract
The invention discloses a protective shell of intelligent household equipment with moisture resistance, which comprises a base, wherein a multilayer moisture-proof shell is arranged on the base; the outer surface of the moisture-proof shell is provided with a humidity sensor, and the inner surface of the moisture-proof shell is provided with a main controller, an electromagnetic coil and a power switch controller; the main controller is connected with the electromagnetic coil, the humidity sensor and the power switch controller. The intelligent household equipment is reasonable in design and low in cost, is matched with the intelligent household equipment, can well prevent the surface, the inside and the operation panel of the equipment from being condensed by water mist in the using process of the intelligent household equipment, and prevents the formation of water drops, so that the potential safety hazard can be avoided, the service life of the intelligent household equipment is prolonged, and the intelligent household equipment has wide popularization and application prospects.
Description
Technical Field
The invention belongs to the technical field of intelligent home furnishing, and particularly relates to a protective shell of intelligent home furnishing equipment with a moisture-proof performance.
Background
Along with the improvement of living standard, mobile internet's rising, smart machine receives more and more liking of people, and the intelligence house is walked into family house gradually, has brought very big convenience for the user. At present, intelligent household equipment sold on the market condenses water mist easily on the surface of equipment, inside the equipment and on the operating panel of the equipment when air humidity increases, forms water drops, has the defect that the equipment cannot be protected from moisture, increases the risk of electric leakage and equipment burnout, and has huge potential safety hazard. Therefore, how to design a moisture-proof housing of smart home devices is a technical problem that needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a protective shell of intelligent household equipment with moisture resistance, aiming at the existing problems.
The invention is realized by the following technical scheme:
a protective shell of intelligent household equipment with moisture resistance comprises a base, wherein a multilayer protective shell is arranged on the base; the outer surface of the protective shell is provided with a humidity sensor, and the inner surface of the protective shell is provided with a main controller, an electromagnetic coil and a power switch controller; the main controller is connected with the electromagnetic coil, the humidity sensor and the power switch controller.
Preferably, the main controller is a single chip microcomputer and a peripheral circuit thereof.
Preferably, the base is made of a PVC material.
Preferably, the protective housing of the intelligent household equipment with the moisture-proof performance comprises a buffer layer, an insulating layer and the moisture-proof housing from inside to outside in sequence; the buffer layer is made of a rubber material, and the insulating layer is made of a PVC material.
Preferably, the framework of the electromagnetic coil is an annular iron core, the size radius is 50-60mm, the thickness is 10-15mm, the winding coil is a copper wire, and the winding mode is single-layer compact winding.
Preferably, the protective casing of the intelligent household equipment with the moisture resistance performance is provided, wherein the electromagnetic coils are uniformly distributed on the inner surface of the protective casing, and the distribution density is 15-20/m2The electromagnetic coils are connected with each other.
Preferably, the protective casing of the smart home device with moisture resistance is prepared by the following steps:
1) adding 3-5 parts of carbon nano tube powder into 40-60 parts of concentrated sulfuric acid solution with the concentration of 80-85%, then adding 5-7 parts of potassium permanganate, keeping the temperature of the mixture between 0-5 ℃, stirring for 1-2h at the rotating speed of 50-80r/min, then heating to 25-30 ℃, continuing stirring for 5-10h, then adding 2-3 parts of hydrogen peroxide under the condition of ice-water bath, standing for 30-50min, carrying out suction filtration, repeatedly washing the solid with 10-15% dilute hydrochloric acid, then placing in a 50-60 ℃ drying oven, and drying to constant weight to obtain the carbon oxide nano tube;
2) mixing 8-10 parts of ferroferric oxide powder with carbon oxide nanotubes, ball-milling for 3-6h in a ball mill with a ball-to-material ratio of 20:1 at the rotation speed of 100-150r/min, adding the mixture into 40-50 parts of ammonia water with the mass fraction of 5-10% after ball-milling is finished, stirring for 2-3h at the rotation speed of 80-130r/min, standing for 5-8h, washing the solid to be neutral by distilled water after filtering, and then drying in an oven at 50-60 ℃ to constant weight to obtain a ferroferric oxide/carbon nanotube compound;
3) placing the ferroferric oxide/carbon nano tube compound in a microwave sintering furnace, heating for 2-4h, wherein the microwave power is 1000-2000W and the microwave frequency is 2500-3000MHz, the whole heat treatment process is carried out under the protection of a high-purity nitrogen atmosphere, the purity of nitrogen is 99.5-99.9%, and after the heat treatment is finished, naturally cooling to room temperature for later use;
4) adding the treated ferroferric oxide/carbon nano tube compound into distilled water to prepare ferroferric oxide/carbon nano tube compound aqueous solution with the mass concentration of 3-5%, then adding 20-30 parts of acrylic acid, oscillating and dispersing for 1-2h under 300-400W ultrasonic wave, then adding 0.2-0.3 part of ammonium persulfate and 3-5 parts of 5-10% sulfuric acid solution, continuing ultrasonic oscillation for 1-2h, then transferring the mixture into a magnetic stirrer, stirring and reacting for 2-3h at the room temperature at the rotation speed of 800-1300r/min, washing the obtained solid product to be neutral by using deionized water and ethanol, drying the solid product to constant weight by using a drying oven at the temperature of 50-60 ℃, crushing and grinding the solid product, and then sieving the ground solid product by using a 100-mesh sieve to obtain a polyacrylic acid-ferroferric oxide/carbon nano tube compound;
5) taking 100-80 parts of polyester resin, 50-80 parts of ABS resin and 30-40 parts of acrylonitrile-butadiene-styrene copolymer, mixing, adding into a reaction kettle, reacting at the temperature of 110-130 ℃, reacting for 20-30min, then adding 1-2 parts of antioxidant, 2-3 parts of silane coupling agent, 3-5 parts of talcum powder, 2-4 parts of calcium stearate and polyacrylic acid-ferroferric oxide/carbon nanotube compound, stirring for 30-40min at the rotating speed of 150-200r/min, and sending the obtained mixture into a hot runner coordination mold for hot melt extrusion molding to obtain the moisture-proof shell.
Preferably, the preparation method of the protective shell of the intelligent household equipment with the moisture resistance performance is adopted, wherein in the step 4), the antioxidant is a hindered phenol antioxidant; the extrusion temperature is 170-190 ℃, and the extrusion pressure is 12-15 MPa.
Compared with the prior art, the invention has the following advantages:
the intelligent household equipment is reasonable in design and low in cost, and is matched with the intelligent household equipment, so that the surface of the equipment, the inside of the equipment and an operation panel of the equipment can be well prevented from being condensed by water mist in the using process of the intelligent household equipment, the formation of water drops is prevented, the potential safety hazard can be avoided, and the service life of the intelligent household equipment is prolonged. The outer surface of the moisture-proof shell is provided with a humidity sensor, when the air humidity is too high, the humidity sensor transmits a signal to a main controller, the main controller controls a power switch controller to enable a switch to be switched on, so that an electromagnetic coil becomes an electromagnet after being electrified, and due to the fact that a large amount of high-magnetism ferroferric oxide/carbon nano tube compound is doped in the moisture-proof shell, under the interaction of the electromagnet and a magnetic substance, the generated electromagnetic field can accelerate the movement of water molecules in the air, so that the water molecules collide with fine dust particles in the air to be combined together, and precipitates after condensation are generated, the water molecule content in the air is reduced, and the effect of reducing the air humidity is achieved; according to the ferroferric oxide/carbon nanotube compound added into the moistureproof shell, the strength of the moistureproof shell can be enhanced by the contained carbon nanotubes, the service life of the moistureproof shell is prolonged, the contained ferroferric oxide is a magnetic substance, the crystal structure of the ferroferric oxide in the compound is changed through microwave heat treatment and microwave heating, so that the specific susceptibility of the ferroferric oxide is rapidly increased, and the magnetism is enhanced.
Drawings
Fig. 1 is a protective casing of a smart home device having moisture resistance according to the present invention.
Detailed Description
The present invention will be further described with reference to specific embodiments.
Example (b):
as shown in fig. 1, a protective housing of a smart home device with moisture resistance includes a base 1, on which a multi-layer protective housing is disposed; the outer surface of the protective shell is provided with a humidity sensor 2, the inner surface of the protective shell is provided with a main controller 3, an electromagnetic coil 4 and a power switch controller 5; the main controller is connected with the electromagnetic coil, the humidity sensor and the power switch controller.
Preferably, the main controller is a single chip microcomputer and a peripheral circuit thereof.
Preferably, the base is made of PVC material.
Preferably, the protective shell of the intelligent household equipment with the moisture-proof performance comprises a buffer layer 6, an insulating layer 7 and a moisture-proof shell 8 from inside to outside in sequence; the buffer layer is made of a rubber material, and the insulating layer is made of a PVC material.
Preferably, the framework of the electromagnetic coil is an annular iron core, the size radius is 50mm, the thickness is 10mm, the winding coil is a copper wire, and the winding mode is single-layer tight winding.
Preferably, the electromagnetic coils are uniformly distributed on the inner surface of the protective shell, and the distribution density is 15/m2The electromagnetic coils are connected with each other.
Preferably, the moisture-proof shell is prepared by the following method:
1) adding 3 parts of carbon nano tube powder into 40 parts of concentrated sulfuric acid solution with the concentration of 80%, then adding 5 parts of potassium permanganate, keeping the temperature of the mixture between 0 ℃, stirring for 2 hours at the rotation speed of 50r/min, then heating to 25 ℃, continuing stirring for 10 hours, then adding 2 parts of hydrogen peroxide under the condition of ice-water bath, standing for 50 minutes, carrying out suction filtration, repeatedly washing the solid with 10% dilute hydrochloric acid, and then placing in a 50 ℃ drying oven to dry to constant weight to obtain the carbon oxide nano tube;
2) mixing 8 parts of ferroferric oxide powder with carbon oxide nanotubes, performing ball milling for 3 hours in a ball mill with a ball-to-material ratio of 20:1 at the rotation speed of 150r/min, adding the mixture into 40 parts of 5 mass percent ammonia water after the ball milling is finished, stirring for 3 hours at the rotation speed of 80r/min, standing for 8 hours, washing the filtered solid to be neutral by using distilled water, and then drying the solid in a 50 ℃ oven to constant weight to obtain a ferroferric oxide/carbon nanotube compound;
3) placing the ferroferric oxide/carbon nano tube compound in a microwave sintering furnace, heating for 2-4h, wherein the microwave power is 1000-2000W and the microwave frequency is 2500-3000MHz, the whole heat treatment process is carried out under the protection of a high-purity nitrogen atmosphere, the purity of nitrogen is 99.5-99.9%, and after the heat treatment is finished, naturally cooling to room temperature for later use;
4) adding the treated ferroferric oxide/carbon nano tube compound into distilled water to prepare ferroferric oxide/carbon nano tube compound aqueous solution with the mass concentration of 3-5%, then adding 20-30 parts of acrylic acid, oscillating and dispersing for 1-2h under 300-400W ultrasonic wave, then adding 0.2-0.3 part of ammonium persulfate and 3-5 parts of 5-10% sulfuric acid solution, continuing ultrasonic oscillation for 1-2h, then transferring the mixture into a magnetic stirrer, stirring and reacting for 2-3h at the room temperature at the rotation speed of 800-1300r/min, washing the obtained solid product to be neutral by using deionized water and ethanol, drying the solid product to constant weight by using a drying oven at the temperature of 50-60 ℃, crushing and grinding the solid product, and then sieving the ground solid product by using a 100-mesh sieve to obtain a polyacrylic acid-ferroferric oxide/carbon nano tube compound;
5) taking 100-80 parts of polyester resin, 50-80 parts of ABS resin and 30-40 parts of acrylonitrile-butadiene-styrene copolymer, mixing, adding into a reaction kettle, reacting at the temperature of 110-130 ℃, reacting for 20-30min, then adding 1-2 parts of antioxidant, 2-3 parts of silane coupling agent, 3-5 parts of talcum powder, 2-4 parts of calcium stearate and polyacrylic acid-ferroferric oxide/carbon nanotube compound, stirring for 30-40min at the rotating speed of 150-200r/min, and sending the obtained mixture into a hot runner coordination mold for hot melt extrusion molding to obtain the moisture-proof shell.
Preferably, the preparation method of the protective shell of the intelligent household equipment with the moisture resistance performance is adopted, wherein in the step 4), the antioxidant is a hindered phenol antioxidant; the extrusion temperature is 170 ℃, and the extrusion pressure is 12 MPa.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention.
Claims (5)
1. A protective shell of intelligent household equipment with moisture resistance is characterized by comprising a base, wherein a multilayer protective shell is arranged on the base; the outer surface of the protective shell is provided with a humidity sensor, and the inner surface of the protective shell is provided with a main controller, an electromagnetic coil and a power switch controller; the main controller is connected with the electromagnetic coil, the humidity sensor and the power switch controller;
the main controller is a single chip microcomputer and a peripheral circuit thereof;
the protective shell sequentially comprises a buffer layer, an insulating layer and a moisture-proof shell from inside to outside; the buffer layer is made of a rubber material, and the insulating layer is made of a PVC material;
the preparation method of the moisture-proof shell comprises the following steps:
1) adding 3-5 parts of carbon nano tube powder into 40-60 parts of concentrated sulfuric acid solution with the concentration of 80-85%, then adding 5-7 parts of potassium permanganate, keeping the temperature of the mixture between 0-5 ℃, stirring for 1-2 hours at the rotating speed of 50-80r/min, then heating to 25-30 ℃, continuing stirring for 5-10 hours, then adding 2-3 parts of hydrogen peroxide under the condition of ice water bath, standing for 30-50 minutes, carrying out suction filtration, repeatedly washing the solid with dilute hydrochloric acid with the concentration of 10-15%, then placing in a 50-60 ℃ oven, and drying to constant weight to obtain the carbon oxide nano tube;
2) mixing 8-10 parts of ferroferric oxide powder with carbon oxide nanotubes, ball-milling for 3-6h in a ball mill with a ball-to-material ratio of 20:1 at the rotation speed of 100-150r/min, adding the mixture into 40-50 parts of ammonia water with the mass fraction of 5-10% after ball-milling is finished, stirring for 2-3h at the rotation speed of 80-130r/min, standing for 5-8h, washing the solid to be neutral by distilled water after filtering, and then drying in an oven at 50-60 ℃ to constant weight to obtain a ferroferric oxide/carbon nanotube compound;
3) placing the ferroferric oxide/carbon nano tube compound in a microwave sintering furnace, heating for 2-4h, wherein the microwave power is 1000-2000W and the microwave frequency is 2500-3000MHz, the whole heat treatment process is carried out under the protection of a high-purity nitrogen atmosphere, the purity of nitrogen is 99.5-99.9%, and after the heat treatment is finished, naturally cooling to room temperature for later use;
4) adding the treated ferroferric oxide/carbon nano tube compound into distilled water to prepare ferroferric oxide/carbon nano tube compound aqueous solution with the mass concentration of 3-5%, then adding 20-30 parts of acrylic acid, oscillating and dispersing for 1-2h under 300-400W ultrasonic wave, then adding 0.2-0.3 part of ammonium persulfate and 3-5 parts of 5-10% sulfuric acid solution, continuing ultrasonic oscillation for 1-2h, then transferring the mixture into a magnetic stirrer, stirring and reacting for 2-3h at the room temperature at the rotation speed of 800-1300r/min, washing the obtained solid product to be neutral by using deionized water and ethanol, drying the solid product to constant weight by using a drying oven at 50-60 ℃, crushing and grinding the solid product, and then sieving the powder by using a 100-mesh sieve to obtain a polyacrylic acid-ferroferric oxide/carbon nano tube compound;
5) taking 100-80 parts of polyester resin, 50-80 parts of ABS resin and 30-40 parts of acrylonitrile-butadiene-styrene copolymer, mixing, adding into a reaction kettle, reacting at the temperature of 110-130 ℃, reacting for 20-30min, then adding 1-2 parts of antioxidant, 2-3 parts of silane coupling agent, 3-5 parts of talcum powder, 2-4 parts of calcium stearate and polyacrylic acid-ferroferric oxide/carbon nanotube compound, stirring for 30-40min at the rotating speed of 150-200r/min, and sending the obtained mixture into a hot runner co-extrusion mold for hot melt extrusion molding, thus obtaining the moisture-proof shell.
2. The protective case for smart home devices with moisture barrier properties as claimed in claim 1, wherein the base is made of PVC material.
3. The protective case for the intelligent household equipment with the moisture resistance as claimed in claim 1, wherein the framework of the electromagnetic coil is an annular iron core, the size radius is 50-60mm, the thickness is 10-15mm, the winding coil is a copper wire, and the winding mode is single-layer tight winding.
4. The protective case for smart home devices with moisture barrier properties as claimed in claim 1, wherein the electromagnetic coils are uniformly distributed on the inner surface of the protective case, and the electromagnetic coils are connected with each other at a distribution density of 15-20/m 2.
5. The protective case for the smart home devices with the moisture resistance as claimed in claim 1, wherein in the step 4), the antioxidant is a hindered phenol antioxidant; the extrusion temperature is 170-190 ℃, and the extrusion pressure is 12-15 MPa.
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