CN203805394U - Coating film with continuous one-way moisture permeability for automobile electrical and electronic device - Google Patents
Coating film with continuous one-way moisture permeability for automobile electrical and electronic device Download PDFInfo
- Publication number
- CN203805394U CN203805394U CN201420125737.1U CN201420125737U CN203805394U CN 203805394 U CN203805394 U CN 203805394U CN 201420125737 U CN201420125737 U CN 201420125737U CN 203805394 U CN203805394 U CN 203805394U
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- Prior art keywords
- electronic equipment
- housing
- electric electronic
- utility
- auto electric
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- Expired - Lifetime
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- 239000011248 coating agent Substances 0.000 title claims abstract description 17
- 238000000576 coating method Methods 0.000 title claims abstract description 17
- 230000035699 permeability Effects 0.000 title abstract 2
- 239000012982 microporous membrane Substances 0.000 claims description 16
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 16
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 16
- 230000002401 inhibitory effect Effects 0.000 claims description 15
- 238000009833 condensation Methods 0.000 abstract description 14
- 230000005494 condensation Effects 0.000 abstract description 14
- 239000000428 dust Substances 0.000 abstract description 5
- 239000010408 film Substances 0.000 abstract 3
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 abstract 2
- 239000010409 thin film Substances 0.000 abstract 2
- 239000003595 mist Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000012546 transfer Methods 0.000 description 5
- 238000011109 contamination Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010112 shell-mould casting Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses a coating film with continuous one-way moisture permeability for an automobile electrical and electronic device. The coating film comprises an expanded polytetrafluoroethylene microporous thin film and a coating with hydrophilic groups, wherein the surface of the expanded polytetrafluoroethylene microporous thin film is coated with the coating containing the hydrophilic groups. The coating film can ensure that fogging and condensation phenomena can be avoided in a casing of the automobile electrical and electronic device, the electrical performance cannot be affected by moist air environment, and the dust permeation can be prevented, so that the dust-tight classification without pollution in the casing of the automobile electrical and electronic device can be achieved.
Description
Technical field
The utility model relates to coated film field, particularly relates to the coated film that continues unidirectional moisture-inhibiting for a kind of auto electric electronic equipment.
Background technology
The loose mist of bend pipe air-vent of European Union's automobile lamp goes condensation theory: inside have sponge dustproof, also connecing air in lamp can go out greatly greatly with the variation of temperature in lamp, thereby realize faster loose mist in lamp and remove condensation, 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.
Utility model content
The technical problem that the utility model mainly solves is to provide the coated film that continues unidirectional moisture-inhibiting for a kind of auto electric electronic equipment, 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, 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, make to reach free of contamination dirt level of confidentiality in the housing of auto electric electronic equipment.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the coated film that continues unidirectional moisture-inhibiting for a kind of auto electric electronic equipment is provided, comprise: expanded PTFE microporous membrane and the coating that contains hydrophilic radical, described expanded PTFE microporous membrane surface is coated with the coating that contains hydrophilic radical.
In preferred embodiment of the utility model, the thickness of the described coating that contains hydrophilic radical is 0.05 mm ~ 0.1mm.
In preferred embodiment of the utility model, the aperture of described expanded PTFE microporous membrane is 0.1 μ m ~ 18 μ m.
In preferred embodiment of the utility model, the thickness of described expanded PTFE microporous membrane is 0.005mm ~ 0.2mm.
The beneficial effects of the utility model are: the utility model can be guaranteed 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, make to reach free of contamination dirt level of confidentiality in the housing of auto electric electronic equipment.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, 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 the utility model auto electric electronic equipment with coated film one preferred embodiment of lasting unidirectional moisture-inhibiting;
In accompanying drawing, the mark of each parts is as follows: 1, expanded PTFE microporous membrane, 2, the coating that contains hydrophilic radical.
Detailed description of the invention
To the technical scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model embodiment comprises:
A coated film that continues unidirectional moisture-inhibiting for auto electric electronic equipment, comprising: expanded PTFE microporous membrane 1 and the coating 2 that contains hydrophilic radical, described expanded PTFE microporous membrane 1 surface is coated with the coating 2 that contains hydrophilic radical.
Preferably, the thickness of the described coating that contains hydrophilic radical 2 is 0.05 ~ 0.1mm.
Preferably, the aperture of described expanded PTFE microporous membrane is 0.1 μ m ~ 18 μ m.
Preferably, the thickness of described expanded PTFE microporous membrane is 0.005mm ~ 0.2mm.
Through the lot of experiments by the coated film of lasting unidirectional moisture-inhibiting 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.
The utility model auto electric electronic equipment comprises by the concrete advantage of the coated film that continues unidirectional moisture-inhibiting:
1) the utility model can be guaranteed 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 utility model can blocks dust, makes to reach free of contamination dirt level of confidentiality in the housing of auto electric electronic equipment;
3) the utility model 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;
4) the utility model can further reduce auto electric electronic equipment eliminating the design and manufacture cost of steam to its performance impact, makes shell moulding simplicity;
5) the utility model airtight body (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 embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description 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 utility model.
Claims (4)
1. a coated film that continues unidirectional moisture-inhibiting for auto electric electronic equipment, it is characterized in that, comprise: expanded PTFE microporous membrane and the coating that contains hydrophilic radical, described expanded PTFE microporous membrane surface is coated with the coating that contains hydrophilic radical.
2. the coated film that continues unidirectional moisture-inhibiting for auto electric electronic equipment according to claim 1, is characterized in that, the thickness of the described coating that contains hydrophilic radical is 0.05 mm ~ 0.1mm.
3. the coated film that continues unidirectional moisture-inhibiting for auto electric electronic equipment according to claim 1, is characterized in that, the aperture of described expanded PTFE microporous membrane is 0.1 μ m ~ 18 μ m.
4. the coated film that continues unidirectional moisture-inhibiting for auto electric electronic equipment according to claim 1, is characterized in that, the thickness of described expanded PTFE microporous membrane is 0.005mm ~ 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125737.1U CN203805394U (en) | 2014-03-20 | 2014-03-20 | Coating film with continuous one-way moisture permeability for automobile electrical and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125737.1U CN203805394U (en) | 2014-03-20 | 2014-03-20 | Coating film with continuous one-way moisture permeability for automobile electrical and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203805394U true CN203805394U (en) | 2014-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420125737.1U Expired - Lifetime CN203805394U (en) | 2014-03-20 | 2014-03-20 | Coating film with continuous one-way moisture permeability for automobile electrical and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203805394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862728A (en) * | 2014-03-20 | 2014-06-18 | 常州市泛亚微透科技有限公司 | Continuous one-way moisture permeable coating film of automobile electric electronic equipment and manufacturing method of continuous one-way moisture permeable coating film |
-
2014
- 2014-03-20 CN CN201420125737.1U patent/CN203805394U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862728A (en) * | 2014-03-20 | 2014-06-18 | 常州市泛亚微透科技有限公司 | Continuous one-way moisture permeable coating film of automobile electric electronic equipment and manufacturing method of continuous one-way moisture permeable coating film |
| WO2015139385A1 (en) * | 2014-03-20 | 2015-09-24 | 常州市泛亚微透科技有限公司 | Continuous unidirectional breathable coating film for automotive electrical and electronic devices and manufacturing method for the coating film |
| CN103862728B (en) * | 2014-03-20 | 2016-08-17 | 江苏泛亚微透科技股份有限公司 | Auto electric electronic equipment coated film and the manufacture method thereof continuing unidirectional moisture-inhibiting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213165 No. 28-8 Sakamoto Road, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213165 No. 28-8 Sakamoto Road, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (CHANGZHOU) Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 213000 No.8 Qiancao Road, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213165 No. 28-8 Sakamoto Road, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (JIANGSU) Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |