CN104029642B - Moisture-inhibiting parts and manufacture method thereof for auto electric electronic equipment - Google Patents
Moisture-inhibiting parts and manufacture method thereof for auto electric electronic equipment Download PDFInfo
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- CN104029642B CN104029642B CN201410103165.1A CN201410103165A CN104029642B CN 104029642 B CN104029642 B CN 104029642B CN 201410103165 A CN201410103165 A CN 201410103165A CN 104029642 B CN104029642 B CN 104029642B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/047—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/045—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/30—Ventilation or drainage of lighting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/02—Synthetic macromolecular particles
- B32B2264/0214—Particles made of materials belonging to B32B27/00
- B32B2264/0257—Polyolefin particles, e.g. polyethylene or polypropylene homopolymers or ethylene-propylene copolymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a kind of auto electric electronic equipment moisture-inhibiting parts and manufacture method thereof, these moisture-inhibiting parts comprise: rubber parts, coated film paster and over cap. Its manufacture method: the manufacture of expanded PTFE microporous membrane; The preparation of the coating agent that contains hydrophilic radical; The manufacture of coated film; The manufacture of coated film paster; The manufacture of moisture-inhibiting parts: the preparation of rubber parts, coated film paster and over cap, rubber parts and the thermocompression bonding of coated film paster are connected into weldment, solder side inspection, weldment dress over cap, checks packaging. The present invention can, from tying the phenomenon of mist condensation and laying dust in basic solution auto electric casting of electronic device, can substitute old-fashioned car light Ventilated cap (bolt), and procapsid structure need not change, can high efficiency pressing assembling.
Description
Technical field
The present invention relates to moisture-inhibiting field of components, particularly relate to a kind of auto electric electronic equipment moisture-inhibiting parts and manufacture method thereof.
Background technology
The loose mist of bend pipe air-vent of European Union's automobile lamp goes condensation theory, inside there is sponge dustproof, also connect air in lamp and can go out greatly greatly with the variation of temperature in lamp, remove condensation thereby realize faster loose mist in lamp, the car light that bend pipe is ventilative uses the interior laying dust of housing and electrical equipment corrosion in the near future.
The loose mist of Gore company of the U.S. goes condensation theory: car light be by lamp with lamp ventilative convection current outward, set up a kind of air pressure balance, in lamp, steam raises and discharges outside lamp with the temperature in lamp, and the ventilated membrane pasting method that on housing, usable floor area is larger is realized loose mist and removed condensation. Thereby reduce steam, the ambiguous phenomenon of lamp scattering of light is occurred, when car light is not worked, external environment condition humid air can enter in housing. The ventilated membrane paster quantity that this theory is used is many, cannot solve the condensation problem of air themperature lower region in housing.
The loose mist of eastern electrician nito of day company goes condensation theory: car light is to form cross-ventilation by the upper-lower position air-vent of light fixture, in lamp, steam raises and discharges outside lamp from the air-vent of upper position with the temperature in lamp, and the air-vent of upper/lower positions constantly supplements lamp outer air. Thereby reduce steam, the ambiguous phenomenon of lamp scattering of light is occurred, the ventilation plug quantity that this theory is used is many, cannot solve the condensation problem of air themperature lower region in housing.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of auto electric electronic equipment moisture-inhibiting parts and manufacture method thereof, can fundamentally solve the defect of auto electric electronic equipment protection aspect, the state that auto electric casting of electronic device inner air is kept dry, thereby thoroughly solve auto electric electronic equipment performance and be not subject to steam in atmospheric environment and the impact of dust, solve the phenomenon of knot mist condensation and laying dust in auto electric casting of electronic device.
For solving the problems of the technologies described above; the technical scheme that the present invention adopts is: a kind of auto electric electronic equipment moisture-inhibiting parts are provided; comprise: rubber parts, coated film paster and over cap; described coated film paster comprises expanded PTFE microporous membrane and is coated in the lip-deep coating that contains hydrophilic radical of expanded PTFE microporous membrane; described rubber parts and coated film paster are welded into weldment, and described weldment is outside equipped with over cap.
In a preferred embodiment of the present invention, the thickness of the described coating that contains hydrophilic radical is 0.05 ~ 0.1mm.
In a preferred embodiment of the present invention, described over cap is cylinder, and its cross section is hexagon or circle.
For solving the problems of the technologies described above, another technical solution used in the present invention is: the manufacture method of a kind of auto electric electronic equipment moisture-inhibiting parts is provided, comprises the following steps:
(1) manufacture of expanded PTFE microporous membrane: polytetrafluoroethyldispersion dispersion resin is mixed in proportion with liquid extrusion aid, and insulation maturation, gives and be pressed into cylinder blank, and cylinder blank is laminated, slough extrusion aid, simple tension, biaxial tension through heating, thermal finalization, cooling, rolling;
(2) preparation of the coating agent that contains hydrophilic radical: by polyurethanes, solvent dimethylformamide, hydrophilic radical solvent and SiO2The mixture stirring and emulsifying of micro mist is even, is formed with the coating agent of hydrophilic radical;
(3) manufacture of coated film: prepare before being coated with, the coating agent that contains hydrophilic radical adds coating roller, coating layer thickness regulates, expanded PTFE microporous membrane unreels, and contacts gluing with cylinder, next procedure cylinder heating, drying coated film, rolling, deposits maturation and solidifies, packaging;
(4) manufacture of coated film paster: the preparation of carrier band films and coatings film, the low viscosity of the coat side that contains hydrophilic radical of carrier band films and coatings film connects, and hemisection cross cutting is to carrier band surface, coated film paster finished product and unwanted coated film are separated, inspection, rolling, packaging;
(5) manufacture of moisture-inhibiting parts: the preparation of rubber parts, coated film paster and over cap, coated film paster after peeling, carrier band film is connected into weldment with rubber parts 230 ~ 250 DEG C of thermocompression bondings, solder side inspection, weldment dress over cap, checks, packs.
In a preferred embodiment of the present invention, the manufacture of described expanded PTFE microporous membrane: polytetrafluoroethyldispersion dispersion resin is mixed in proportion with liquid extrusion aid, 30 DEG C ~ 35 DEG C insulation maturations, give and be pressed into cylinder blank, by rolling process, cylinder blank is laminated, slough extrusion aid through 90 ~ 110 DEG C of heating, 190 ~ 210 DEG C of simple tensions, 190 ~ 210 DEG C of biaxial tensiones, in 330 ~ 350 DEG C of sintering 15 ~ 20min thermal finalization, cooling, rolling.
In a preferred embodiment of the present invention, described polyurethanes, solvent dimethylformamide, hydrophilic radical solvent and SiO2The mass ratio of micro mist is 5:12:1:1.
In a preferred embodiment of the present invention, the manufacture of described coated film: prepare before being coated with, the coating agent that contains hydrophilic radical is reinforced at point type coating roller, coating layer thickness is adjusted to 0.05 ~ 0.1mm, expanded PTFE microporous membrane unreels, portable cord speed is 8 ~ 10m/min, contact gluing with point type cylinder, next procedure cylinder volatilizees simultaneously and removes solvent dimethylformamide and solvent recovery processing 80 DEG C ~ 100 DEG C heating, drying coated film, rolling, deposit 24h maturation at 25 ~ 35 DEG C and solidify, packaging.
In a preferred embodiment of the present invention, the viscosity index (VI) 28 ~ 33Pa.s of the described coating agent that contains hydrophilic radical.
In a preferred embodiment of the present invention, described liquid extrusion aid is aviation kerosine, and the mass ratio of described polytetrafluoroethyldispersion dispersion resin and liquid extrusion aid is 4 ~ 6:1.
The invention has the beneficial effects as follows: the present invention can guarantee the interior generation without knot mist condensation phenomenon of the housing of auto electric electronic equipment, make electric property not be subject to the impact of moist air environment, humidity in the housing of auto electric electronic equipment reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of auto electric electronic equipment or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of auto electric electronic equipment is brought into play, thoroughly overturn American-European-Japanese conventional method to humidity control and regulation in housing, infiltration that again can blocks dust, makes to reach free of contamination dirt level of confidentiality in the housing of auto electric electronic equipment, the present invention can substitute old-fashioned car light Ventilated cap (bolt), and procapsid structure need not change, can high efficiency pressing assembling.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of auto electric electronic equipment of the present invention moisture-inhibiting parts one preferred embodiment;
In accompanying drawing, the mark of each parts is as follows: 1, expanded PTFE microporous membrane, 2, the coating that contains hydrophilic radical, 3, rubber parts, 4, over cap.
Detailed description of the invention
To the technical scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of auto electric electronic equipment moisture-inhibiting parts; comprise: rubber parts 3, coated film paster and over cap 4; described coated film paster comprises expanded PTFE microporous membrane 1 and is coated in the lip-deep coating that contains hydrophilic radical 2 of expanded PTFE microporous membrane; described rubber parts 3 is welded into weldment with coated film paster, and described weldment is outside equipped with over cap 4.
Preferably, the thickness of the described coating that contains hydrophilic radical 2 is 0.05 ~ 0.1mm.
Preferably, described over cap 4 is cylinder, and its cross section is hexagon or circle.
The manufacture method of moisture-inhibiting parts for auto electric electronic equipment, comprises the following steps:
(1) manufacture of expanded PTFE microporous membrane 1: polytetrafluoroethyldispersion dispersion resin is mixed in proportion with liquid extrusion aid, and insulation maturation, gives and be pressed into cylinder blank, and cylinder blank is laminated, slough extrusion aid, simple tension, biaxial tension through heating, thermal finalization, cooling, rolling;
(2) preparation of the coating agent that contains hydrophilic radical: by polyurethanes, solvent dimethylformamide, hydrophilic radical solvent and SiO2The mixture stirring and emulsifying of micro mist is even, is formed with the coating agent of hydrophilic radical;
(3) manufacture of coated film: prepare before being coated with, the coating agent that contains hydrophilic radical adds coating roller, coating layer thickness regulates, expanded PTFE microporous membrane unreels, and contacts gluing with cylinder, next procedure cylinder heating, drying coated film, rolling, deposits maturation and solidifies, packaging;
(4) manufacture of coated film paster: the preparation of carrier band films and coatings film, 2 low viscosity of the coating that contains hydrophilic radical of carrier band films and coatings film connect, and hemisection cross cutting is to carrier band surface, coated film paster finished product and unwanted coated film are separated, inspection, rolling, packaging;
(5) manufacture of moisture-inhibiting parts: the preparation of rubber parts 3, coated film paster and over cap 4; by coated film paster from carrier band film peel after with rubber parts 3 be connected into weldment 230 ~ 250 DEG C of thermocompression bondings, solder side inspection, weldment fill over cap 4; check packaging.
Preferably, the manufacture of described expanded PTFE microporous membrane 1: polytetrafluoroethyldispersion dispersion resin is mixed in proportion with liquid extrusion aid, 30 DEG C ~ 35 DEG C insulation maturations, give and be pressed into cylinder blank, by rolling process, cylinder blank is laminated, slough extrusion aid through 90 ~ 110 DEG C of heating, 190 ~ 210 DEG C of simple tensions, 190 ~ 210 DEG C of biaxial tensiones, in 330 ~ 350 DEG C of sintering 15 ~ 20min thermal finalization, cooling, rolling.
Preferably, described polyurethanes, solvent dimethylformamide, hydrophilic radical solvent and SiO2The mass ratio of micro mist is 5:12:1:1.
Preferably, the manufacture of described coated film: prepare before being coated with, the coating agent that contains hydrophilic radical is reinforced at point type coating roller, and coating layer thickness is adjusted to 0.05 ~ 0.1mm, and expanded PTFE microporous membrane 1 unreels, portable cord speed is 8 ~ 10m/min, contact gluing with point type cylinder, next procedure cylinder volatilizees simultaneously and removes solvent dimethylformamide and solvent recovery processing, rolling 80 DEG C ~ 100 DEG C heating, drying coated film, deposit 24h maturation at 25 ~ 35 DEG C and solidify, packaging.
Preferably, the viscosity index (VI) 28 ~ 33Pa.s of the described coating agent that contains hydrophilic radical.
Preferably, described liquid extrusion aid is aviation kerosine, and the mass ratio of described polytetrafluoroethyldispersion dispersion resin and liquid extrusion aid is 4 ~ 6:1.
Expanded PTFE microporous membrane material is called for short " ePTFE film ", and " ePTFE " is the abbreviation of expanded PTFE English word (expandedpolytetrafluorethylene); Expanded PTFE microporous membrane is a kind of macromolecule new material film with specific function high added value, make through biaxial tension through special process, the microfibre of this film has formed the inside and outside micropore in 0.1 penetrating μ m aperture, μ m ~ 18, is the ventilated membrane of real meaning. Film surface can reach tens micropores per square inch, each micro-pore diameter is less than the minimum of a value of the mist globule, and (20 μ m ~ 100 μ m), and much larger than water vapour molecule diameter, (0.0003 μ m ~ 0.0004 μ m), can make steam by and water droplet can not pass through greatly because of surperficial tension, utilize this microcellular structure can reach outstanding Waterproof Breathable function; In addition because extremely tiny and longitudinal substandard bend alignment of this hole, be used in auto electric electronic equipment protection aspect, though can make the air in auto electric electronic equipment regulate pressure balance by this film convection current, reach free of contamination dirt close, but the steam that cannot stop or reduce in environment enters in housing, be trapped in that wetness in housing is too high will have a strong impact on the performance of performance of auto electric electronic equipment in the time that automobile is stopped.
The coating moisture-inhibiting principle that contains hydrophilic radical: the macromolecular compound of contain-NHCOO-unit in the polyurethane ester molecular structure in polyurethanes emulsion coating, its cardinal principle is on polymer chain, to introduce appropriate hydrophilic radical, spontaneous dispersion under certain condition forms emulsion, in the large molecule of PU, contain a large amount of polar groups, molecular separating force is very strong, cause and make it have good film forming, can on fabric, form tough and tensile and durable film, it also has certain poisture-penetrability. Its reason is: on the one hand polar group or the hydrophilic radical in PU, as-hydrogen bond and the intermolecular active force of OH ,-NHCOO-,-COOH and organosilicon micro mist etc., make water vapour molecule move to low humidity one side along ladder from high humility one side; Theoretically, on macromolecular chain, mainly contain hydrophilic radical, and as long as hydrophilic radical content and arrangement are suitable, they just can with hydrone effect, by hydrogen bond and other intermolecular force, after high humility one side draught attached water part, be delivered to low humidity one side desorb by hydrophilic radical on macromolecular chain. Therefore, moisture-inhibiting is in fact the process of " absorption-diffusion-transfer-desorb ".
Auto electric electronic equipment is to apply and contain hydrophilic radical polyurethanes emulsion coating at a side surface of expanded PTFE microporous membrane by the coated film that continues unidirectional moisture-inhibiting, dry coating through 80 DEG C ~ 100 DEG C temperature, room temperature is deposited after 24h, coating is just solidificated on expanded PTFE microporous membrane face, form the durable coating of one deck densification, this coating contains hydrophilic radical, with hydrone effect, by hydrogen bond and other intermolecular force, after high humility one side draught attached water part, be delivered to low humidity one side desorb by hydrophilic radical on macromolecular chain. Therefore, moisture-inhibiting be in fact one hydrophilic radical polyurethanes coating surface " absorption " stream molecule-hydrone in hydrophilic radical polyurethanes coating laterally " diffusion "-hydrone " desorb "-hydrone on the combination interface face of hydrophilic radical polyurethanes coating and expanded PTFE microporous membrane enter the densely covered micropore of expanded PTFE microporous membrane and discharge the process of moisture to external environment condition.
Embodiment:
A kind of auto electric electronic equipment moisture-inhibiting parts, comprise: rubber parts 3, coated film paster and over cap 4, described coated film paster comprises PE carrier band film and coated film, described coated film comprises expanded PTFE microporous membrane 1 and is coated in the lip-deep coating that contains hydrophilic radical 2 of expanded PTFE microporous membrane, 2 composite joints of the coating that contains hydrophilic radical of described PE carrier band films and coatings film, described rubber parts 3 is welded into weldment with coated film paster, described weldment is outside equipped with over cap 4, its manufacture method specifically comprises the following steps:
(1) manufacture of expanded PTFE microporous membrane 1: polytetrafluoroethyldispersion dispersion resin is mixed by the mass ratio of 5:1 with aviation kerosine solvent, 30 DEG C ~ 35 DEG C insulation maturations, give and be pressed into cylinder blank, by rolling process, cylinder blank is laminated, slough extrusion aid through 90 ~ 110 DEG C of heating, 190 ~ 210 DEG C of simple tensions, 190 ~ 210 DEG C of biaxial tensiones, in 330 ~ 350 DEG C of sintering 15 ~ 20min thermal finalization, cooling, rolling;
(2) preparation of the coating agent that contains hydrophilic radical: be the SiO of 0.1 μ m ~ 12 μ m by polyurethanes, solvent dimethylformamide, the solvent that contains hydrophilic radical and particle diameter2The mixture stirring and emulsifying of micro mist is even, is formed with the coating agent of hydrophilic radical, and described polyurethanes, solvent dimethylformamide, hydrophilic radical solvent and particle diameter is the SiO of 0.1 μ m ~ 12 μ m2The mass ratio of micro mist is 5:12:1:1, the viscosity index (VI) 28 ~ 33Pa.s of the described coating agent that contains hydrophilic radical, and nonvolatile matter reaches 25 ~ 35%;
(3) manufacture of coated film: prepare before being coated with, the coating agent that contains hydrophilic radical is reinforced at point type coating roller, coating layer thickness is adjusted to 0.05 ~ 0.1mm, expanded PTFE microporous membrane 1 unreels, and portable cord speed is 8 ~ 10m/min, contacts gluing with point type cylinder, next procedure cylinder volatilizees simultaneously and removes solvent dimethylformamide and solvent recovery processing 80 DEG C ~ 100 DEG C heating, drying coated film, rolling, deposits 24h maturation at 25 ~ 35 DEG C and solidifies, packaging;
(4) manufacture of coated film paster: the preparation of carrier band films and coatings film, 2 low viscosity of the coating that contains hydrophilic radical of carrier band films and coatings film connect, and hemisection cross cutting is to carrier band surface, coated film paster finished product and unwanted coated film are separated, inspection, rolling, packaging;
(5) manufacture of moisture-inhibiting parts: the preparation of rubber parts 3, coated film paster and over cap 4; the nose end that coated film paster is peeled to rear and rubber parts 3 through holes from carrier band film is connected into weldment 230 ~ 250 DEG C of thermocompression bondings, solder side inspection, weldment dress over cap 4; check packaging.
Through the lot of experiments with moisture-inhibiting parts to auto electric electronic equipment, result of the test shows that the vapor transfer rate that steam is discharged from coated side to expanded PTFE microporous membrane side is greater than the vapor transfer rate that steam is discharged from expanded PTFE microporous membrane side direction coated side, the difference of water vapour moisture-inhibiting direction causes the difference of vapor transfer rate, from the amount of the outside moisture-inhibiting of coated side than large 30% left and right of vapor transfer rate in expanded PTFE microporous membrane side direction housing, utilize the greatest differences of the vapor transfer rate of this both direction, this coated film is applied on the housing of auto electric electronic equipment, the coated side of this coated film is in the housing of auto electric electronic equipment, the eptfe membrane of this coated film atmosphere towards the outside, steam in the housing of auto electric electronic equipment is constantly discharged in a steady stream like this, show by the characteristic to the unidirectional lasting discharge water vapour of external environment condition in housing, in the time of auto electric electronic device works, when temperature in housing is higher, the hydrophilic high mol segment of coating is more active, absorption, it is faster that diffusion reconciliation suction goes out the speed of water vapour molecule, humidity in the housing of auto electric electronic equipment reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of auto electric electronic equipment or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of auto electric electronic equipment is brought into play.
Auto electric electronic equipment of the present invention comprises by the concrete advantage of moisture-inhibiting parts:
1) the present invention can guarantee the interior generation without knot mist condensation phenomenon of housing of auto electric electronic equipment, make electric property not be subject to the impact of moist air environment, humidity in the housing of auto electric electronic equipment reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of auto electric electronic equipment or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of auto electric electronic equipment is brought into play, thoroughly overturned American-European-Japanese conventional method to humidity control and regulation in housing;
2) infiltration that the present invention can blocks dust, makes to reach free of contamination dirt level of confidentiality in the housing of auto electric electronic equipment;
3) the present invention, by coated film paster and rubber parts nose end firm welding, develops auto electric electronic equipment with continuing unidirectional moisture-inhibiting parts new product, substitutes old-fashioned car light Ventilated cap (bolt), and procapsid structure need not change, and can high efficiency pressing assemble;
4) the present invention has met the performance of auto electric electronic equipment and other small-sized sophisticated electronics (mobile phone, navigation terminal, microcomputer etc.) dependable performance completely, can meet the comprehensive requirements of protection such as waterproof and dustproof, grease proofing, moisture-inhibiting, anti-oxidant solution corrosion;
5) the present invention can further develop the terminal high value-added product of the various appearance colors of engineering use, and standardized end product industrialization manufacture is used more convenient;
6) the present invention can further reduce auto electric electronic equipment eliminating the design and manufacture cost of steam to its performance impact, makes shell moulding simplicity;
7) airtight body of the present invention (allowing water vapour molecule to discharge) and the high characteristic of resistance to seepage pressure, more than water pressure resistance has reached 10000mm height water column (relative pressure 100KPa pressure), can keep out dell ponding and soak or the impact of the middle impact water that travels, make to keep dry in housing and can not soak.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. auto electric electronic equipment moisture-inhibiting parts, it is characterized in that, comprise: rubber parts, coated film paster and over cap, described coated film paster comprises expanded PTFE microporous membrane and is coated in the lip-deep coating that contains hydrophilic radical of expanded PTFE microporous membrane, described rubber parts and coated film paster are welded into weldment, and described weldment is outside equipped with over cap;
The manufacture method of these moisture-inhibiting parts comprises the following steps:
(1) manufacture of expanded PTFE microporous membrane: polytetrafluoroethyldispersion dispersion resin is mixed in proportion with liquid extrusion aid, and insulation maturation, gives and be pressed into cylinder blank, and cylinder blank is laminated, slough extrusion aid, simple tension, biaxial tension through heating, thermal finalization, cooling, rolling;
(2) preparation of the coating agent that contains hydrophilic radical: by polyurethanes, solvent dimethylformamide, hydrophilic radical solvent and SiO2The mixture stirring and emulsifying of micro mist is even, is formed with the coating agent of hydrophilic radical;
(3) manufacture of coated film: prepare before being coated with, the coating agent that contains hydrophilic radical adds coating roller, coating layer thickness regulates, expanded PTFE microporous membrane unreels, and contacts gluing with cylinder, next procedure cylinder heating, drying coated film, rolling, deposits maturation and solidifies, packaging;
(4) manufacture of coated film paster: the preparation of carrier band films and coatings film, the low viscosity of the coat side that contains hydrophilic radical of carrier band films and coatings film connects, and hemisection cross cutting is to carrier band surface, coated film paster finished product and unwanted coated film are separated, inspection, rolling, packaging;
(5) manufacture of moisture-inhibiting parts: the preparation of rubber parts, coated film paster and over cap, coated film paster after peeling, carrier band film is connected into weldment with rubber parts 230 ~ 250 DEG C of thermocompression bondings, solder side inspection, weldment dress over cap, checks, packs.
2. auto electric electronic equipment moisture-inhibiting parts according to claim 1, is characterized in that, the thickness of the described coating that contains hydrophilic radical is 0.05 ~ 0.1mm.
3. auto electric electronic equipment moisture-inhibiting parts according to claim 1, is characterized in that, described over cap is cylinder, and its cross section is hexagon or circle.
4. auto electric electronic equipment moisture-inhibiting parts according to claim 1, it is characterized in that, the manufacture of described expanded PTFE microporous membrane: polytetrafluoroethyldispersion dispersion resin is mixed in proportion with liquid extrusion aid, 30 DEG C ~ 35 DEG C insulation maturations, give and be pressed into cylinder blank, by rolling process, cylinder blank is laminated, slough extrusion aid through 90 ~ 110 DEG C of heating, 190 ~ 210 DEG C of simple tensions, 190 ~ 210 DEG C of biaxial tensiones, in 330 ~ 350 DEG C of sintering 15 ~ 20min thermal finalization, cooling, rolling.
5. auto electric electronic equipment moisture-inhibiting parts according to claim 1, is characterized in that, described polyurethanes, solvent dimethylformamide, hydrophilic radical solvent and SiO2The mass ratio of micro mist is 5:12:1:1.
6. auto electric electronic equipment moisture-inhibiting parts according to claim 1, it is characterized in that, the manufacture of described coated film: prepare before being coated with, the coating agent that contains hydrophilic radical is reinforced at point type coating roller, coating layer thickness is adjusted to 0.05 ~ 0.1mm, expanded PTFE microporous membrane unreels, portable cord speed is 8 ~ 10m/min, contact gluing with point type cylinder, next procedure cylinder volatilizees simultaneously and removes solvent dimethylformamide and solvent recovery processing 80 DEG C ~ 100 DEG C heating, drying coated film, rolling, deposits 24h maturation at 25 ~ 35 DEG C and solidifies, packaging.
7. auto electric electronic equipment moisture-inhibiting parts according to claim 1, is characterized in that, the viscosity index (VI) 28 ~ 33Pa.s of the described coating agent that contains hydrophilic radical.
8. according to the auto electric electronic equipment moisture-inhibiting parts described in claim 1 or 4, it is characterized in that, described liquid extrusion aid is aviation kerosine, and the mass ratio of described polytetrafluoroethyldispersion dispersion resin and liquid extrusion aid is 4 ~ 6:1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103165.1A CN104029642B (en) | 2014-03-20 | 2014-03-20 | Moisture-inhibiting parts and manufacture method thereof for auto electric electronic equipment |
| PCT/CN2014/081374 WO2015139384A1 (en) | 2014-03-20 | 2014-07-01 | Breathable component for automotive electrical and electronic devices and manufacturing method for the breathable component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103165.1A CN104029642B (en) | 2014-03-20 | 2014-03-20 | Moisture-inhibiting parts and manufacture method thereof for auto electric electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104029642A CN104029642A (en) | 2014-09-10 |
| CN104029642B true CN104029642B (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410103165.1A Active CN104029642B (en) | 2014-03-20 | 2014-03-20 | Moisture-inhibiting parts and manufacture method thereof for auto electric electronic equipment |
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| WO (1) | WO2015139384A1 (en) |
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| CN104456350B (en) * | 2014-10-30 | 2017-02-15 | 马瑞利汽车零部件(芜湖)有限公司 | LED vehicle lamp manual shower coating pond |
| CN108744723B (en) * | 2018-08-07 | 2024-04-19 | 江苏泛亚微透科技股份有限公司 | Polymer sintering micropore ventilation assembly for car lamp |
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| CN104029642A (en) | 2014-09-10 |
| WO2015139384A1 (en) | 2015-09-24 |
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