CN203893134U - Moisture-permeable stopper for automobile lamp - Google Patents
Moisture-permeable stopper for automobile lamp Download PDFInfo
- Publication number
- CN203893134U CN203893134U CN201420295411.3U CN201420295411U CN203893134U CN 203893134 U CN203893134 U CN 203893134U CN 201420295411 U CN201420295411 U CN 201420295411U CN 203893134 U CN203893134 U CN 203893134U
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- moisture
- automobile lamp
- permeable
- inhibiting
- housing
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Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses a moisture-permeable stopper for an automobile lamp. The moisture-permeable stopper comprises a rubber stopper body. A moisture-permeable channel of the rubber stopper body is connected with a moisture-permeable coating film. A protecting end cover is installed at one end, connected with the moisture-permeable coating film, of the rubber stopper body. At least two bosses are arranged between the protecting end cover and the moisture-permeable coating film. The surface of one side of an expanded polytetrafluoroethylene film is coated with a hydrophilic group coating. The hydrophilic group coating is connected with the rubber stopper body. Due to the mode, the moisture-permeable stopper can be connected with a cylindrical moisture-permeable hole boss of a casing in an interference fitting mode, and press fitting assembly can be efficient; as the moisture-permeable stopper has good moisture absorption and guide properties, fog formation and condensation in the casing of the automobile lamp can be avoided, and the illumination property of the automobile lamp is not influenced by damp air environment; short circuit caused by condensation on the surface of an electronic element can be avoided, and permeation of rainwater and dust can be stopped.
Description
Technical field
The utility model relates to a kind of automobile lamp moisture-inhibiting bolt.
Background technology
In prior art, the loose mist of bend pipe air-vent of European Union's automobile lamp goes condensation theory, inside there is 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 loose mist of Dong electrician company goes condensation theory: car light is to form cross-ventilation by the upper-lower position air-vent of light fixture, and 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 a kind of automobile lamp moisture-inhibiting bolt, can be by the characteristic to the unidirectional lasting discharge water vapour of external environment condition in housing, air in housing is dried, guarantee the interior generation without knot mist condensation phenomenon of housing of automobile lamp, make car light illumination performance not be subject to the impact of moist air environment.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of automobile lamp moisture-inhibiting bolt is provided, comprise: automobile lamp moisture-inhibiting bolt, comprise: rubber key, on the moisture-inhibiting passage of described rubber key, be connected with moisture-penetrating coating film, the rubber key one end that is connected with moisture-penetrating coating film is equipped with protection end cap, between described protection end cap and moisture-penetrating coating film, is provided with at least 2 boss;
Described moisture-penetrating coating film comprises eptfe membrane layer and hydrophilic radical coating, and hydrophilic radical coating is coated on a side surface of eptfe membrane layer, and hydrophilic radical coating is connected with described rubber key part.
In preferred embodiment of the utility model, the end face of described protection end cap is circle, rectangle or hexagon.
In preferred embodiment of the utility model, this moisture-inhibiting bolt is installed in moisture-inhibiting aperture, and is connected with the interference of moisture-inhibiting aperture.
In preferred embodiment of the utility model, between moisture-penetrating coating film and rubber key for being welded to connect.
The beneficial effects of the utility model are: the utility model automobile lamp is connected with the cylindrical moisture-inhibiting hole boss interference of housing with moisture-inhibiting bolt, can high efficiency pressing assemble; There is good moisture absorption performance, by the characteristic to the unidirectional lasting discharge water vapour of external environment condition in housing, to guarantee the generation without knot mist condensation phenomenon in the housing of automobile lamp, make car light illumination performance not be subject to the impact of moist air environment, also avoided electric electronic element surface sweating to cause the generation of short circuit; Can stop the infiltration of rainwater dust, make to reach free of contamination dirt level of confidentiality in the housing of automobile lamp; Chinese Kenaf Core Buffer super fine can adsorb car light plastic housing because being subject to thermogenetic volatile matter simultaneously, is conducive to car light minute surface and keeps light reflection performance.
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 automobile lamp moisture-inhibiting bolt one preferred embodiment;
Fig. 2 is the top view of the moisture-inhibiting of automobile lamp shown in Fig. 1 bolt;
Fig. 3 is the structural representation of the protection end cap of another preferred embodiment in the moisture-inhibiting of automobile lamp shown in Fig. 1 bolt;
Fig. 4 is the top view of the protection end cap shown in Fig. 3;
In accompanying drawing, the mark of each parts is as follows: 1, rubber key, 2, protection end cap, 3, boss, 4, eptfe membrane layer, 5, hydrophilic radical coating.
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 and Fig. 2, the utility model embodiment comprises:
A kind of automobile lamp moisture-inhibiting bolt; comprise: rubber key 1; on the moisture-inhibiting passage of described rubber key 1, be connected with moisture-penetrating coating film, rubber key 1 one end that is connected with moisture-penetrating coating film is equipped with protection end cap 2, between described protection end cap 2 and moisture-penetrating coating film, is provided with at least 2 boss 3.There is boss 3 to hold up moisture-penetrating coating film, form the interstitial channels of discharging moisture.
Described moisture-penetrating coating film comprises eptfe membrane layer 4 and contains Chinese Kenaf Core Buffer super fine hydrophilic radical coating 5, contain the side surface that Chinese Kenaf Core Buffer super fine hydrophilic radical coating 5 is coated on eptfe membrane layer 4, contain Chinese Kenaf Core Buffer super fine hydrophilic radical coating 5 and be connected with 1 of described rubber key.
Coating is connected with rubber key 1, discharges the water vapour molecule in housing thereby ensure to continue unidirectional moisture-inhibiting.
The end face of described protection end cap 2 is circle, rectangle or hexagon as shown in Figure 3 and Figure 4.Can be according to different application requirements, design the protection end cap 2 of different end surface shape.Protection end cap 2 can protect moisture-penetrating coating film not affected by touching of external force.
This moisture-inhibiting bolt is installed in moisture-inhibiting aperture, and is connected with the interference of moisture-inhibiting aperture, thereby meets the engineering application that continues unidirectional moisture-inhibiting aspect automobile lamp protection, can high efficiency pressing assembling.
The preparation technology of this moisture-inhibiting bolt comprises the following steps:
A) rubber spigot, moisture-penetrating coating film and protection end cap 2 are done to technological preparation;
B) by moisture-penetrating coating film thermal compression welding in rubber spigot, the temperature of thermal compression welding is 200 DEG C-240 DEG C;
C) after checking that solder side is qualified, protection end cap 2 is arranged on rubber key 1;
D), after overall passed examination, make this moisture-inhibiting bolt.
The preparation technology of described moisture-penetrating coating film comprises the following steps:
A) add the raw material that contains Chinese Kenaf Core Buffer super fine hydrophilic radical coating 5, and to regulate gluing thickness be 0.012mm-0.025mm;
B) unreel eptfe membrane layer 4, and contact gluing with above-mentioned raw materials, form and contain Chinese Kenaf Core Buffer super fine hydrophilic radical coating 5 on eptfe membrane layer 4 surface;
C) will contain Chinese Kenaf Core Buffer super fine hydrophilic radical coating 5 and carry out heating, drying, temperature is 80 DEG C-100 DEG C;
D) under temperature is the environment of 20 DEG C-40 DEG C, deposit at least 24h maturation and solidify, make moisture-penetrating coating film.
Coating contains hydrophilic radical and hydrone effect, by hydrogen bond and other intermolecular force, after high humility one side draught attached water part, is delivered to low humidity one side desorb by hydrophilic radical on macromolecular chain.Therefore, moisture-inhibiting be in fact one at hydrophilic radical polyurethanes coating surface " absorption " stream molecule---hydrone in hydrophilic radical polyurethanes coating laterally " diffusion "---on hydrone combination interface face at hydrophilic radical polyurethanes coating and eptfe membrane " desorb "---hydrone enters the densely covered micropore of eptfe membrane and discharges moisture to external environment condition " process.Hydrophilic radical is referred to as " chemical ladder stone ", in the situation that there is pressure differential, moisture content by a side positioning shift to opposite side.Namely moisture-inhibiting process of this process.
Through lot of experiments, find that the vapor transfer rate that steam is discharged from coated side to eptfe membrane side is greater than the vapor transfer rate that steam is discharged from eptfe membrane side direction coated side, the difference of two moisture-inhibiting directions causes the difference of vapor transfer rate, from the amount of the outside moisture-inhibiting of coated side than vapor transfer rate 30 ~ 50% left and right in eptfe 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 automobile lamp, the coated side of this coated film is in the housing of automobile lamp, the eptfe membrane of this coated film atmosphere towards the outside, steam in the housing of automobile lamp 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 that automobile lamp is worked, 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 automobile lamp reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of automobile lamp or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of automobile lamp is brought into play.
Wherein, the raw material that contains Chinese Kenaf Core Buffer super fine hydrophilic radical coating 5 comprises that the raw material uniform stirring of following weight percentage makes:
Polyurethanes 20%-25%;
Solvent dimethylformamide 55%-60%;
Hydrophilic radical solvent 2%-5%;
Chinese Kenaf Core Buffer super fine 18%-25%.
Wherein, the viscosity index (VI) of coating agent is 33 Pa.s.In coating agent, comprise 35% nonvolatile matter.
The manufacture craft of Chinese Kenaf Core Buffer super fine comprises: first Chinese Kenaf Core Buffer is processed as to meal, and carry out pretreatment, carry out successively again micronization processes and activation processing, after finishing dealing with, dry, carry out again modification, then carry out miniaturization processing, finally carry out separating treatment, make Chinese Kenaf Core Buffer super fine.
Modification is in the Chinese Kenaf Core Buffer of pulverizing after drying, to add a certain amount of methyl diphenylene diisocyanate and a small amount of polyalcohol to realize polymeric modification.
The polyurethanes emulsion adopting, contain Chinese Kenaf Core Buffer super fine, the macromolecular compound of contain in polyurethane ester molecular structure-NHCOO-unit, its cardinal principle is on polymer chain, to introduce appropriate hydrophilic radical, and spontaneous dispersion under certain condition forms emulsion, in the large molecule of PU, contains a large amount of polar groups, molecular separating force is very strong, cause it to have good film forming, can on fabric, form tough and tensile and durable film, it also has certain poisture-penetrability.
Its reason is: polar group or the hydrophilic radical in PU on the one hand, as-OH ,-NHCOO-,-COOH, " chemical ladder stone " effect of Chinese Kenaf Core Buffer superfine powder etc., makes 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 one diffusion-transfer-desorb ".Hydrophilic radical is referred to as " chemical ladder stone ", in the situation that there is pressure differential, moisture content by a side positioning shift to opposite side.Namely moisture-inhibiting process of this process.
In polyurethanes emulsion glaze, add 18 ~ 25% Chinese Kenaf Core Buffer super fine, the Chinese Kenaf Core Buffer super fine adding has 0.5 ~ 0.2 a large amount of μ m micropore and cracks, and contains more hydrophilic active group, forms copolymerization coating adhesive; The moisture-inhibiting factor content of cellulose that contains Chinese Kenaf Core Buffer super fine is large, has a large amount of hydroxyls to make itself and water molecules group many, has micro-groove and micropore simultaneously, has increased moisture absorption area and diffusion area.Compared with conventional PU coating, the water absorption rate of the copolymerization coating adhesive that contains Chinese Kenaf Core Buffer super fine has improved 10% left and right, water vapour permeability has improved 1 ~ 5 times, greatly improved automobile lamp by inside to outside ventilating capability, make car light inside continue to keep very low humidity and occur without knot mist condensation phenomenon, thus the harmful effect of elimination car light interior focusing photograph; The copolymerization coating adhesive that contains Chinese Kenaf Core Buffer super fine, after graft copolymerization, molecule rearranges and becomes and intersect firmly Space Idea, and surface is also finer and close, stable, evenly.The performances such as the water pressure resistance intensity, light aging resisting, heat ageing of the coated film of the large vapor transfer rate of automobile lamp are improved.
The manufacturing process of eptfe membrane layer 4 comprises;
1) by polytetrafluoroethyldispersion dispersion resin and liquid extrusion aid in proportion (5:1) mix (can add therein coloring agent, meet the multifarious demand of film color);
2) 30 DEG C of-35 DEG C of maturations of insulation, give and are pressed into cylinder blank;
3) by rolling process, cylinder blank is laminated;
4) slough extrusion aid through heating 100 DEG C of left and right;
5) simple tension, draft temperature is 200 DEG C of left and right, then biaxial tension, and draft temperature is 200 DEG C of left and right;
6) thermal finalization, at the temperature sintering 18min of 340 DEG C of left and right;
7) last, cooling, rolling, makes expanded PTFE microporous membrane.
The microporous membrane material of expanded PTFE (ePTFE) is called for short " ePTFE film ", and " ePTFE " is the literary sketch of expanded PTFE English word (expanded polytetrafluorethylene); The microporous membrane of expanded PTFE (ePTFE) 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 automobile electric (car light) electronic equipment protection aspect, though can make the air in auto electric (car light) electronic equipment regulate pressure balance by this film convection current, reach free of contamination dirt close.
Moisture-inhibiting bolt of the present utility model has good moisture absorption performance, the moisture-inhibiting factor content of cellulose that contains Chinese Kenaf Core Buffer super fine is large, there is a large amount of hydroxyls to make itself and water molecules group many, have micro-groove and micropore simultaneously, increased moisture absorption area and diffusion area.After application the utility model, can guarantee the interior generation without knot mist condensation phenomenon of housing of automobile lamp, make electric property not be subject to the impact of moist air environment, thoroughly overturn American-European-Japanese conventional method to humidity control and regulation in housing.
Lot of experiments finds that the vapor transfer rate that steam is discharged from coated side to eptfe membrane side is greater than the vapor transfer rate that steam is discharged from eptfe membrane side direction coated side, the difference of two moisture-inhibiting directions causes the difference of vapor transfer rate, from the amount of the outside moisture-inhibiting of coated side than large 30 ~ 50% left and right of vapor transfer rate in eptfe 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 automobile lamp, the coated side of this coated film is in the housing of automobile lamp, the eptfe membrane of this coated film atmosphere towards the outside, steam in the housing of automobile lamp 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 that automobile lamp is worked, 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 automobile lamp reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of automobile lamp or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of automobile lamp is brought into play.
Moisture-inhibiting bolt of the present utility model show by housing to the characteristic of the unidirectional lasting discharge water vapour of external environment condition, make in housing air dry, the steam thoroughly having changed in the housing of former automobile lamp relies on the loose mist of cross-ventilated principle to go the pattern of revealing.
The existing good absorption property of moisture-inhibiting bolt of the present utility model, can stop again the infiltration of rainwater dust, makes to reach free of contamination dirt level of confidentiality in the housing of automobile lamp, the coated side of this coated film in the housing of automobile lamp, the eptfe membrane of this coated film atmosphere towards the outside, the discharge that steam in the housing of automobile lamp is able to continuously again like this, show by the characteristic to the unidirectional lasting discharge water vapour of external environment condition in housing, in the time that automobile lamp is worked, 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 automobile lamp reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of automobile lamp or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of automobile lamp is brought into play, Chinese Kenaf Core Buffer super fine can adsorb car light plastic housing because being subject to thermogenetic volatile matter simultaneously, is conducive to car light minute surface and keeps light reflection performance.
Moisture-inhibiting bolt of the present utility model also has and has excellent uvioresistant performance, this utility model has solved the defect problem in background technology, the performance of this material has met the performance of automobile lamp and other small-sized sophisticated electronics (mobile phone, navigation terminal, microcomputer etc.) dependable performance completely, in comprehensive requirements of protection such as waterproof and dustproof, grease proofing, moisture-inhibiting, anti-oxidant solution corrosions.
Moisture-inhibiting bolt of the present utility model has further reduced automobile lamp eliminating the design and manufacture cost of steam to its performance impact, makes shell moulding simplicity.
Moisture-inhibiting bolt of the present utility model also has airtight body (allowing water vapour molecule to discharge) and the high characteristic of resistance to seepage pressure, more than the water pressure resistance of this coated film has reached 10000mm height water column (relative pressure 100KPa pressure), this moisture-inhibiting bolt can be kept out dell ponding and be soaked or the impact of the middle impact water that travels, and makes 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. an automobile lamp moisture-inhibiting bolt, it is characterized in that, comprise: rubber key, on the moisture-inhibiting passage of described rubber key, be connected with moisture-penetrating coating film, the rubber key one end that is connected with moisture-penetrating coating film is equipped with protection end cap, between described protection end cap and moisture-penetrating coating film, is provided with at least 2 boss;
Described moisture-penetrating coating film comprises eptfe membrane layer and hydrophilic radical coating, and hydrophilic radical coating is coated on a side surface of eptfe membrane layer, and hydrophilic radical coating is connected with described rubber key part.
2. automobile lamp according to claim 1 moisture-inhibiting bolt, is characterized in that, the end face of described protection end cap is circle, rectangle or hexagon.
3. automobile lamp according to claim 1 moisture-inhibiting bolt, is characterized in that, this moisture-inhibiting bolt is installed in moisture-inhibiting aperture, and is connected with the interference of moisture-inhibiting aperture.
4. automobile lamp according to claim 1 moisture-inhibiting bolt, is characterized in that, between moisture-penetrating coating film and rubber key for being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295411.3U CN203893134U (en) | 2014-06-05 | 2014-06-05 | Moisture-permeable stopper for automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295411.3U CN203893134U (en) | 2014-06-05 | 2014-06-05 | Moisture-permeable stopper for automobile lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893134U true CN203893134U (en) | 2014-10-22 |
Family
ID=51719536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420295411.3U Expired - Lifetime CN203893134U (en) | 2014-06-05 | 2014-06-05 | Moisture-permeable stopper for automobile lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893134U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184665A1 (en) * | 2014-06-05 | 2015-12-10 | 常州市泛亚微透科技有限公司 | Coating film having high water vapor transmission rate |
| CN109945130A (en) * | 2019-04-29 | 2019-06-28 | 厦门腾烨电子科技有限公司 | A kind of unidirectional waterproof ventilation cap of automobile lamp |
| CN111316765A (en) * | 2018-10-11 | 2020-06-19 | 日东电工株式会社 | Ventilation assembly and ventilation shell |
-
2014
- 2014-06-05 CN CN201420295411.3U patent/CN203893134U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184665A1 (en) * | 2014-06-05 | 2015-12-10 | 常州市泛亚微透科技有限公司 | Coating film having high water vapor transmission rate |
| CN111316765A (en) * | 2018-10-11 | 2020-06-19 | 日东电工株式会社 | Ventilation assembly and ventilation shell |
| CN111316765B (en) * | 2018-10-11 | 2023-02-21 | 日东电工株式会社 | Ventilation assembly and ventilation shell |
| CN109945130A (en) * | 2019-04-29 | 2019-06-28 | 厦门腾烨电子科技有限公司 | A kind of unidirectional waterproof ventilation cap of automobile lamp |
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Address after: 213000, No. 28-8, Sakamoto Road, Sakamoto village, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213000, No. 28-8, Sakamoto Road, Sakamoto village, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (CHANGZHOU) Co.,Ltd. |
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Address after: 213000 No.8 Qiancao Road, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213000, No. 28-8, Sakamoto Road, Sakamoto village, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (JIANGSU) Corp. |
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Granted publication date: 20141022 |