CN103471065A - Waterproof and breathable electric appliance cavity structure and production method of waterproof and breathable film - Google Patents
Waterproof and breathable electric appliance cavity structure and production method of waterproof and breathable film Download PDFInfo
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- CN103471065A CN103471065A CN2013104187332A CN201310418733A CN103471065A CN 103471065 A CN103471065 A CN 103471065A CN 2013104187332 A CN2013104187332 A CN 2013104187332A CN 201310418733 A CN201310418733 A CN 201310418733A CN 103471065 A CN103471065 A CN 103471065A
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Abstract
The invention discloses a waterproof and breathable electric appliance cavity structure which comprises a cavity of an electric appliance. The structure is characterized in that a through hole communicating the inside with the outside of the cavity is formed in a cavity wall, a waterproof and breathable film is covered on the through hole, and air holes preventing liquid water from passing are formed in the waterproof and breathable film. Particles become big after water molecules are condensed to become water drops, and due to action (the water molecules pull and contend against each other) of surface tension of the water drops, the liquid water cannot pass a bore diameter capable of allowing free water molecules to pass in a normal-pressure state, so that the waterproof and breathable film is enabled to have a waterproof and breathable function, waterproofing can be realized, and the problems of ventilating and air pressure balancing between the inside and the outside of the cavity of the electric appliance can be solved.
Description
Technical field
The present invention relates to a kind of electric apparatus chamber body structure of waterproof and breathable and the production method of waterproof ventilated membrane.
Background technology
A kind of as in electrical equipment, the LED light fixture generally is divided into three assemblies: 1, metal shell, be used for holding other assemblies, be used for heat radiation, be used for other assemblies of waterproofing protection, be used for realizing secondary light-distribution.2, power drives: be used for guaranteeing the normal operation of LED illuminator, life-extending.3, LED illuminator: by several little chips, adopt single or integration packaging.
Mainly dependence method of outdoor lights waterproof is the method that adopts sealing isolated, generally adopts the joint portion rubber blanket to add marine glue, and the lamp body inside cavity is hedged off from the outer world.Light fixture is in inside and outside gas pressure non-equilibrium state.Light fixture when work, in lamp body temperature at 60-80 ℃, gas expansion in lamp body, pressure is greater than external environment, the lamp body space is larger, and gas volume is larger, and pressure differential is larger, under pressure differential, in lamp body, gas destroys sealing ring and marine glue gradually, and high-temperature gas overflows in lamp body.After light fixture extinguishes, temperature drops to normal temperature, contraction of gas in lamp body, pressure diminishes, and exists environmental stress to be greater than pressure pressure differential in lamp body, and negative pressure makes external environmental gas destroy equally gradually sealing ring and marine glue, ambient atmos, moisture enter in lamp body, reach inside and outside air pressure balance.So, adopt the method for sealing can't solve the outdoor lamp waterproof problem.
Traditional solution has two: the one, stay next hole on lamp body.Although inner and outer air pressure can balance like this, the problem that can not solve the light fixture water inlet and enter dust.The 2nd, stay next cavity, with the elastic material sealing, but can only solve small size light fixture air pressure balance problem, and the general volume of outdoor lights is larger, the gas hot expanding type effect is very large, is not enough to solve the inside and outside air pressure balance problem.
The inventor further recognizes: under free state, the hydrone particle is very tiny, but after the hydrone condensation becomes the globule, it is large that particle becomes, due to the capillary effect of the globule (between hydrone mutual " pull and contend with "), the aperture liquid towards water that can pass through for dissociating water molecule just can't pass through under atmospheric pressure state.
Summary of the invention
First purpose of purpose of the present invention is to provide the electric apparatus chamber body structure of waterproof and breathable, uses the electrical equipment cavity to reach the effect of air permeable waterproof.
For achieving the above object, the present invention adopts a kind of electric apparatus chamber body structure of waterproof and breathable, the cavity that comprises an electrical equipment, it is characterized in that on cavity wall having the through hole of a connected chamber inside and outside, be coated with a waterproof ventilated membrane on this through hole, have the air-vent that prevents that aqueous water from passing through on waterproof ventilated membrane.
The aperture of above-mentioned air-vent is below 30 nanometers
The electric apparatus chamber body structure of above-mentioned waterproof and breathable is characterized in that: waterproof ventilated membrane is fixed on the edge of through hole.
The electric apparatus chamber body structure of above-mentioned waterproof and breathable is characterized in that: a sealing ring is arranged on waterproof ventilated membrane, waterproof ventilated membrane is pressed on chamber outer wall.
The electric apparatus chamber body structure of above-mentioned waterproof and breathable is characterized in that: a securing member is fastened on sealing ring on chamber outer wall.
The effect of the electric apparatus chamber body structure of waterproof and breathable of the present invention is: due to after the hydrone condensation becomes the globule, it is large that particle becomes, due to the capillary effect of the globule (between hydrone mutual " pull and contend with "), the aperture liquid towards water that can pass through for dissociating water molecule just can't pass through under atmospheric pressure state, make waterproof ventilated membrane there is the function of waterproof and breathable, can waterproof can solve again the ventilative and air pressure balance problem of electric apparatus chamber inside and outside.
Second purpose of the present invention is to provide a kind of method that realizes electrical equipment cavity waterproof and breathable.
The present invention realizes the method for electrical equipment cavity waterproof and breathable, it is characterized in that: open a connection cavity and extraneous through hole on cavity wall, adopt waterproof ventilated membrane, and its this waterproof ventilated membrane is covered on through hole; With a fastener, waterproof ventilated membrane is fixed on the electric apparatus chamber body wall.
Adopt the present invention to realize the method for electrical equipment cavity waterproof and breathable, can guarantee waterproof to solve again the ventilative and air pressure balance problem of electric apparatus chamber inside and outside
Above-mentioned waterproof ventilated membrane is achieved through the following technical solutions:
A kind of production method of waterproof ventilated membrane is characterized in that comprising the following steps:
A, take polymer material film as base material, with high energy particle, polymer material film is carried out to irradiation;
B, will be dipped in through the polymer material film of irradiation in the container that fills acid solution or aqueous slkali and carry out etching reaction and can obtain waterproof ventilated membrane.
The advantage of method of the present invention is: the waterproof ventilated membrane that adopts the present invention to produce has the uniform characteristics of pore density, adopts production method of the present invention, and the barrier film micropore size is easy to control, speed of production is fast, production efficiency is high.
As a modification of the present invention, the irradiation power in above-mentioned steps A during irradiation is 2000-10000 kilowatt, and exposure time is 0.5～200 second.
As another kind of improvement the of the present invention, in above-mentioned steps B, the etching reaction time is 0.2～60 minute.
As further improvement of the present invention, when described polymer material film is the PET film, the NaOH solution that the aqueous slkali that in above-mentioned steps B, etching reaction is used is 15-35%.
The 3rd purpose of the present invention is to provide a kind of waterproof ventilated membrane that said method is produced of applying.
A kind of waterproof ventilated membrane of applying said method production is characterized in that: be formed with some equally distributed micropores on described barrier film, described micropore consists of two funnel type holes and the smaller diameter end in these two funnel type holes is docked.
The larger diameter end in described funnel type hole is 8:1 with the diameter of smaller diameter end ratio.
The accompanying drawing explanation
Fig. 1 is the structural representation of the waterproof ventilated membrane produced of the present invention;
Fig. 2 is the microphoto of the micropore that forms on the waterproof ventilated membrane produced of the present invention, and aperture is below 30 nanometers;
figure3, be the electric apparatus chamber body structure schematic diagram of waterproof and breathable of the present invention.
Specific embodiment
In order further to understand the present invention, below in conjunction with embodiment, the preferred embodiments of the invention are described, but should be appreciated that these embodiment are only for further illustrating the features and advantages of the present invention, rather than limitation of the present invention.
Embodiment mono-
A kind of production method of waterproof ventilated membrane comprises the following steps:
A, take the PET polymer material film as base material, by high energy charged particles, polymer material film is carried out to irradiation.
Irradiation power is 2000-10000 kilowatt, and exposure time is 0.5～200 second, can be by adjusting irradiation energy, exposure time adjustment pore density, and obtaining the pore density scope is every square centimeter 100,000～20,000,000.
B, will be dipped in through the PET polymer material film of irradiation and carry out etching reaction in the container that fills NaOH solution and can obtain waterproof ventilated membrane.
The concentration of NaOH solution is that 15-35%, etching reaction temperature are 70 degrees centigrade～90 degrees centigrade, and etching period is 0.2-60 minute, and the micropore size of acquisition, can be by adjusting concentration of lye, reaction temperature, reaching reaction time intense adjustment aperture in 30 nanometers.
Principle of the present invention is: adopt the high-energy particle bombardment polymer material film, when the charged nuclear particle of high energy (fission fragment) passes the macromolecule polymer material film, on the path of particle process, the plastics macromolecular chain is interrupted, stay a narrow damage passage---core micropore, the strand that is interrupted part has soda acid characteristics different from former film, then immerses etching in acid solution or alkali lye, by the place of interrupting, can be corroded, form the micropore that the enough microscopic of energy arrive.The micropore at the shallow place of film is long because of etching period, and the micropore of compare great ， depths, aperture is short because of etching period, and aperture is less.
As shown in Figure 1 and Figure 2, be formed with some equally distributed core micropores 2 on waterproof ventilated membrane 1, micropore 2 consists of two funnel type holes 21,22 and the smaller diameter end in these two funnel type holes 21,22 is docked.
Method advantage of the present invention is: the waterproof ventilated membrane that uses the method to produce has the advantages that pore density is even, aperture is easy to control, speed of production is fast, production efficiency is high.
A kind of embodiment that applies waterproof ventilated membrane
With reference to figure 3; the present invention adopts a kind of electric apparatus chamber body structure of waterproof and breathable; comprise the cavity 3 that a casing for electric appliances surrounds; have a through hole 5 on cavity wall 4; be coated with a waterproof ventilated membrane 1 on this through hole; waterproof ventilated membrane is fixed on the edge of through hole; the waterproof ventilated membrane top is provided with a sealing ring 7 around through hole; waterproof ventilated membrane is pressed on chamber outer wall; the sealing ring top is coated with a baffle 8; this baffle is being positioned at through hole top position hollow out, and the screw 9 as securing member, be fastened on sealing ring and baffle on chamber outer wall.
A kind of embodiment of the method that realizes electrical equipment cavity waterproof and breathable: open a connection cavity and extraneous through hole on cavity wall, adopt waterproof ventilated membrane, and its this waterproof ventilated membrane is covered on through hole; With a fastener, waterproof ventilated membrane is fixed on the electric apparatus chamber body wall, this fastener, can be adhesive or be comprised of above-mentioned sealing ring 7 and screw 9.
Claims (10)
1. the electric apparatus chamber body structure of a waterproof and breathable, the cavity that comprises an electrical equipment, it is characterized in that on cavity wall having the through hole of a connected chamber inside and outside, be coated with a waterproof ventilated membrane on this through hole, have the air-vent that prevents that aqueous water from passing through on waterproof ventilated membrane.
2. the electric apparatus chamber body structure of waterproof and breathable according to claim 1, it is characterized in that: the aperture of air-vent is below 30 nanometers.
3. the electric apparatus chamber body structure of waterproof and breathable according to claim 1, it is characterized in that: waterproof ventilated membrane is fixed on the edge of through hole.
4. according to the electric apparatus chamber body structure of claim 1 or 2 or 3 described waterproof and breathables, it is characterized in that: a sealing ring is arranged on waterproof ventilated membrane, waterproof ventilated membrane is pressed on chamber outer wall.
5. according to the electric apparatus chamber body structure of claim 1 or 2 or 3 described waterproof and breathables, it is characterized in that: a securing member is fastened on sealing ring on chamber outer wall.
6. a method that realizes electrical equipment cavity waterproof and breathable, is characterized in that: open a connection cavity and extraneous through hole on the electric apparatus chamber body wall, adopt waterproof ventilated membrane, and its this waterproof ventilated membrane is covered on through hole; With a fastener, waterproof ventilated membrane is fixed on the electric apparatus chamber body wall; Have the air-vent that prevents that aqueous water from passing through on waterproof ventilated membrane.
7. the production method of a waterproof ventilated membrane is characterized in that comprising the following steps:
A, take polymer material film as base material, with high energy particle, polymer material film is carried out to irradiation;
B, will be dipped in through the polymer material film of irradiation in the container that fills acid solution or aqueous slkali and carry out etching reaction and can obtain waterproof ventilated membrane.
8. the production method of a kind of waterproof ventilated membrane according to claim 7 is characterized in that: the irradiation power in described steps A during irradiation is 2000-10000 kilowatt, and exposure time is 0.5～200 second.
9. the production method of a kind of waterproof ventilated membrane according to claim 7, it is characterized in that: in described step B, the etching reaction time is 0.2～60 minute.
10. according to the production method of the arbitrary described a kind of waterproof ventilated membrane of claim 7 to 9, it is characterized in that: when described polymer material film is the PET film, the NaOH solution that the aqueous slkali that in above-mentioned steps B, etching reaction is used is 15～35%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013104187332A CN103471065A (en) | 2013-09-15 | 2013-09-15 | Waterproof and breathable electric appliance cavity structure and production method of waterproof and breathable film |
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| CN2013104187332A CN103471065A (en) | 2013-09-15 | 2013-09-15 | Waterproof and breathable electric appliance cavity structure and production method of waterproof and breathable film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015165027A1 (en) * | 2014-04-29 | 2015-11-05 | 谢青波 | Waterproof led lamp and led lamp set |
| CN106444241A (en) * | 2015-08-04 | 2017-02-22 | 海信集团有限公司 | Laser light source and laser projection display device |
| CN108650581A (en) * | 2018-06-28 | 2018-10-12 | 赣州得辉达科技有限公司 | A kind of diving speaker |
| CN108684162A (en) * | 2018-04-24 | 2018-10-19 | 吉林建筑大学 | A kind of smart city data acquisition mobile device based on 4G wireless communications |
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| CN101551084A (en) * | 2009-04-14 | 2009-10-07 | 深圳市钧多立实业有限公司 | LED large power road lamp |
| CN102188909A (en) * | 2011-05-03 | 2011-09-21 | 中山国安火炬科技发展有限公司 | Manufacturing method of nuclear millipore membrane |
| CN202140648U (en) * | 2011-07-07 | 2012-02-08 | 东莞市永存电子有限公司 | Novel waterproof ventilation valve |
| CN202203913U (en) * | 2011-07-27 | 2012-04-25 | 深圳市景瑞德科技有限公司 | LED (light-emitting diode) split waterproof breathable device |
-
2013
- 2013-09-15 CN CN2013104187332A patent/CN103471065A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551084A (en) * | 2009-04-14 | 2009-10-07 | 深圳市钧多立实业有限公司 | LED large power road lamp |
| CN102188909A (en) * | 2011-05-03 | 2011-09-21 | 中山国安火炬科技发展有限公司 | Manufacturing method of nuclear millipore membrane |
| CN202140648U (en) * | 2011-07-07 | 2012-02-08 | 东莞市永存电子有限公司 | Novel waterproof ventilation valve |
| CN202203913U (en) * | 2011-07-27 | 2012-04-25 | 深圳市景瑞德科技有限公司 | LED (light-emitting diode) split waterproof breathable device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015165027A1 (en) * | 2014-04-29 | 2015-11-05 | 谢青波 | Waterproof led lamp and led lamp set |
| US20170051911A1 (en) * | 2014-04-29 | 2017-02-23 | Qingbo XIE | Waterproof led lamp and led lamp set |
| CN106444241A (en) * | 2015-08-04 | 2017-02-22 | 海信集团有限公司 | Laser light source and laser projection display device |
| US10317782B2 (en) | 2015-08-04 | 2019-06-11 | Hisense Co., Ltd. | Laser light source and laser projection display device |
| CN108684162A (en) * | 2018-04-24 | 2018-10-19 | 吉林建筑大学 | A kind of smart city data acquisition mobile device based on 4G wireless communications |
| CN108650581A (en) * | 2018-06-28 | 2018-10-12 | 赣州得辉达科技有限公司 | A kind of diving speaker |
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Application publication date: 20131225 |
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