CN203560871U - Waterproof ventilating electric appliance cavity structure - Google Patents
Waterproof ventilating electric appliance cavity structure Download PDFInfo
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- CN203560871U CN203560871U CN201320570246.3U CN201320570246U CN203560871U CN 203560871 U CN203560871 U CN 203560871U CN 201320570246 U CN201320570246 U CN 201320570246U CN 203560871 U CN203560871 U CN 203560871U
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- waterproof
- hole
- cavity
- electric appliance
- ventilated membrane
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Abstract
The utility model discloses a waterproof ventilating electric appliance cavity structure. The cavity structure comprises an electric appliance cavity and is characterized in that the cavity wall is provided with a through hole communicating the cavity with the outside world. The through hole is covered by a waterproof ventilating film. The waterproof ventilating film is provided with a ventilating hole preventing liquid water from pass through. Since water molecules are condensed to form water drops having a larger size, the water drop has surface tension ("pulling and counterbalancing" among water molecules), liquid water cannot pass through the hole under normal atmospheric pressure, wherein the hole allows free water molecules to pass through. Thus, the waterproof ventilating film achieves waterproof and ventilating functions to be waterproof and overcome problems of ventilation and pressure balance inside and outside the electric appliance cavity.
Description
Technical field
The utility model 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, LED light fixture is generally 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 that LED illuminator normally works, life-extending.3, LED illuminator: adopt single or integration packaging by several little chips.
Mainly dependence method of outdoor lights waterproof is the method that adopts sealing isolated, generally adopts joint portion rubber blanket to add marine glue, and 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, 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 cannot solve outdoor lamp waterproof problem.
Traditional solution has two: the one, on lamp body, stay next hole.Although inner and outer air pressure can balance like this, the problem that can not solve light fixture water inlet and enter dust.The 2nd, stay next cavity, with elastic material sealing, but can only solve small size light fixture air pressure balance problem, and the general volume of outdoor lights is larger, gas hot expanding type effect is very large, is not enough to solve inside and outside air pressure balance problem.
Utility model people further recognizes: under free state, hydrone particle is very tiny, but when hydrone condensation becomes after 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 cannot pass through under atmospheric pressure state.
Utility model content
The purpose of this utility model is to provide the electric apparatus chamber body structure of waterproof and breathable, uses electrical equipment cavity to reach the effect of air permeable waterproof.
For achieving the above object, the utility model 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 having on cavity wall the through hole of a connected chamber inside and outside, on this through hole, be coated with a waterproof ventilated membrane, on waterproof ventilated membrane, have the air-vent that prevents that aqueous water from passing through.
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: on waterproof ventilated membrane, have a sealing ring, 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: also comprise a securing member, this securing member is connected with electrical equipment chamber outer wall, and sealing ring is fastened on chamber outer wall.
The effect of the electric apparatus chamber body structure of the utility model waterproof and breathable is: because hydrone condensation becomes after 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 cannot 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.
Accompanying drawing explanation
Fig. 1 is the structural representation of the waterproof ventilated membrane of the utility model production;
Fig. 2 is the electric apparatus chamber body structure schematic diagram of the utility model waterproof and breathable.
Specific embodiment
In order further to understand the utility model, below in conjunction with embodiment, preferred embodiment of the present utility model is described, but should be appreciated that these embodiment are only for further illustrating feature and advantage of the present utility model, rather than to restriction of the present utility model.
With reference to figure 2, the utility model adopts a kind of electric apparatus chamber body structure of waterproof and breathable, comprise the cavity 3 that a casing for electric appliances surrounds, on cavity wall 4, have a through hole 5, on this through hole, be coated with a waterproof ventilated membrane 1, waterproof ventilated membrane is fixed on the edge of through hole, waterproof ventilated membrane top is provided with a sealing ring 7 along the surrounding of through hole, waterproof ventilated membrane is pressed on chamber outer wall, sealing ring top is coated with a baffle 8, this baffle is being positioned at through hole top position hollow out, screw 9 as securing member, sealing ring and baffle are fastened on chamber outer wall.
The production method of above-mentioned waterproof ventilated membrane, comprises the following steps:
A, take 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 pore density scope is every square centimeter 100,000～20,000,000.
B, by being dipped in through the PET polymer material film of irradiation, in the container that fills NaOH solution, carrying out etching reaction and can obtain waterproof ventilated membrane.
The concentration of NaOH solution is that 15-35%, etching reaction temperature are 70 degrees Celsius～90 degrees Celsius, and etching period is 0.2-60 minute, and the micropore size of acquisition, can be by adjusting concentration of lye, reaction temperature and reaction time intense adjustment aperture in 30 nanometer left and right.
Principle of the present utility model is: adopt high-energy particle bombardment polymer material film, when the charged nuclear particle of high energy (fission fragment) passes macromolecule polymer material film, on the path of particle process, plastics macromolecular chain is interrupted, leave 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 because of etching period long, aperture is larger, the micropore of depths is short because of etching period, aperture is less.
As shown in Figure 1, 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.
Claims (5)
1. the electric apparatus chamber body structure of a waterproof and breathable, the cavity that comprises an electrical equipment, it is characterized in that having on cavity wall the through hole of a connected chamber inside and outside, on this through hole, be coated with a waterproof ventilated membrane, on waterproof ventilated membrane, have the air-vent that prevents that aqueous water from passing through.
2. the electric apparatus chamber body structure of waterproof and breathable according to claim 1, 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, 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 the waterproof and breathable described in claim 1 or 2 or 3, it is characterized in that: on waterproof ventilated membrane, have a sealing ring, waterproof ventilated membrane is pressed on chamber outer wall.
5. according to the electric apparatus chamber body structure of the waterproof and breathable described in claim 1 or 2 or 3, it is characterized in that: also comprise that one is fastened on the securing member on chamber outer wall by sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570246.3U CN203560871U (en) | 2013-09-15 | 2013-09-15 | Waterproof ventilating electric appliance cavity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570246.3U CN203560871U (en) | 2013-09-15 | 2013-09-15 | Waterproof ventilating electric appliance cavity structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560871U true CN203560871U (en) | 2014-04-23 |
Family
ID=50510590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320570246.3U Expired - Fee Related CN203560871U (en) | 2013-09-15 | 2013-09-15 | Waterproof ventilating electric appliance cavity structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560871U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105263299A (en) * | 2015-11-03 | 2016-01-20 | 江苏超力电器有限公司 | Protective structure for waterproof ventilated membrane |
| CN105402630A (en) * | 2015-12-15 | 2016-03-16 | 晶科电子（广州）有限公司 | LED module light source |
| CN106455392A (en) * | 2016-08-03 | 2017-02-22 | 深圳供电局有限公司 | Electric power waterproof box structure used in high humidity environment |
-
2013
- 2013-09-15 CN CN201320570246.3U patent/CN203560871U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105263299A (en) * | 2015-11-03 | 2016-01-20 | 江苏超力电器有限公司 | Protective structure for waterproof ventilated membrane |
| CN105402630A (en) * | 2015-12-15 | 2016-03-16 | 晶科电子（广州）有限公司 | LED module light source |
| CN106455392A (en) * | 2016-08-03 | 2017-02-22 | 深圳供电局有限公司 | Electric power waterproof box structure used in high humidity environment |
| CN106455392B (en) * | 2016-08-03 | 2022-08-30 | 深圳供电局有限公司 | Be applied to waterproof case structure of electric power under high humidity environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20190915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |