CN202747200U - Ventilating structure of automotive headlamp - Google Patents
Ventilating structure of automotive headlamp Download PDFInfo
- Publication number
- CN202747200U CN202747200U CN 201220381922 CN201220381922U CN202747200U CN 202747200 U CN202747200 U CN 202747200U CN 201220381922 CN201220381922 CN 201220381922 CN 201220381922 U CN201220381922 U CN 201220381922U CN 202747200 U CN202747200 U CN 202747200U
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- China
- Prior art keywords
- air
- housing
- car headlamp
- ventilation device
- humidity sensor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides a ventilating structure of an automotive headlamp. The ventilating structure is arranged on the automotive headlamp, an air inlet and an air outlet are arranged on a casing of the automotive headlamp, a humidity sensor is arranged in a cavity enclosed by the casing of the automotive headlamp, a drying device is arranged on the air inlet portion, an air pumping device is arranged on the air outlet portion, the humidity sensor is in signal connection with an electronic control unit (ECU) of an automobile, the ECU of the automobile is further in signal connection with a relay, and the relay is electrically connected with a switch of the air pumping device. The ventilating structure can automatically control humidity in the casing of the automotive headlamp and can eliminate the phenomenon of condensed mist.
Description
Technical field
The utility model relates to a kind of Vehicle lamp structure, and more particularly, it relates to a kind of ventilation device of car headlamp.
Background technology
When opening for a long time, existing car headlamp can produce high temperature, lamp body is inside and outside can to form the larger temperature difference, and causing larger inner and outer air pressure poor, the long term high temperature high pressure can affect the car light life-span, so lamp body need to arrange ventilation device with balance internal-external temperature difference and pressure reduction.Temperature is higher in the lamp body, and air pressure is larger, and hot gas need discharge in the housing; When the car light drop in temperature, the housing internal gas pressure reduces, and can absorb ambient atmos to recover air pressure.But when wet weather, the gas humidity that sucks in the car light is higher, easily condenses into steam after entering car light, thereby affects the illuminating effect of car light.For this reason, the bonnet place of some car headlamp arranges a plurality of breather pipes and carries out intake and exhaust, prevents condensation vapor by long vent line, but so not only affects attractive in appearancely, and because rather inconvenience is installed and use all to its complex structure.Publication number is that the utility model of CN201028450Y discloses a kind of the whole sealed type headlamp on July 25th, 2007, comprise housing, bulb, interior plug, back shroud and outside dust cover with air-vent, be provided with the semi-transparent rete of being made by nylon material between the end face of Nei Sai and air-vent.This utility model can solve the shortcoming that the housing seal performance obviously descends, condensation vapor often can appear in inside that existing automobile front exists; yet nylon material have be heated yielding; the shortcoming that easily wears out; be applied in the headlight, can bring again the new problem that shortens self because being heated for a long time in service life.
The utility model content
The defective that is difficult for eliminating condensation vapor in order to overcome existing car headlamp, the utility model provides a kind of and can in time stop humid air to enter, keep vehicle front lighting lamp housing inner drying, effectively eliminate the haze ventilation device of car headlamp of phenomenon of headlamp condensation.
The technical solution of the utility model is: a kind of ventilation device of car headlamp, be located on the car headlamp, the housing of car headlamp is provided with air admission hole and venthole, be provided with humidity sensor in the chamber that housing surrounds, air inlet position is provided with drying device, and the venthole place is provided with air extractor, and humidity sensor is connected with the ECU signal of automobile, the ECU of automobile is connected with a relay signal again, and described relay is electrically connected with the switch of described air extractor.By the humidity in the humidity sensor induction vehicle front lighting lamp housing, if humidity surpasses when causing the threshold value that headlamp hazes, trigger relay then, the Control air extractor provides ventilatory drive, and the damp-heat air in the housing is discharged, meanwhile, for reaching air pressure balance, suck the air of relative low temperature from air admission hole, and after described drying device dehumidifying, enter in the lamp, guaranteed the aridity in the housing, prevented that car headlamp from hazing.
As preferably, air admission hole and venthole lay respectively at the both sides of housing.Port is arranged at the housing both sides of car headlamp, can increases the valid circulation area of air-flow, prevent from occurring in the housing air-flow blind area.
As preferably, be provided with silica-gel desiccant in the described drying device.With the dry and drying mode of removing moisture economy and facility comparatively, silica-gel desiccant can reuse, and can effectively prolong the service life of this ventilation device, strengthens drying effect, and safety and environmental protection.
As preferably, described drying device removably is connected in air inlet position.Mode use cost with desiccant dryness is lower, but drier needs often to change or to take out regeneration, therefore with dismountable drying device can the convenient and dry agent timely replacing.
As preferably, described drying device is cellular dry runner.Cellular dry runner can effectively increase the contact area of air-flow and drier, strengthens drying effect.
As preferably, described air extractor is mini fan.The mini fan volume is little, and power consumption is little, and being used on the car headlamp affects not quite assembling, and use cost is also lower.
The beneficial effects of the utility model are:
Can automatically control humidity in the vehicle front lighting lamp housing, eliminate the condensation phenomenon that hazes.The utility model disposes drying device and air extractor, can form gas flow in the closed area by discharging moisture and filling into dry air, obtains the rapid moisture removal effect, thereby prevents that condensation is hazed on the lamp.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure, 1-housing, 2-air admission hole, 3-venthole, 4-humidity sensor, the cellular dry runner of 5-, 6-mini fan.
The specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawing specific embodiment.
Embodiment:
As shown in Figure 1, a kind of ventilation device of car headlamp is located on the car headlamp, and the housing 1 of car headlamp is provided with air admission hole 2 and venthole 3, and air admission hole 2 and venthole 3 lay respectively at the both sides of the housing 1 of car headlamp.Be provided with humidity sensor 4 in the chamber that housing 1 surrounds, air admission hole 2 places are provided with the drying device with drier, and this drying device is cellular dry runner 5, and this cellular dry runner removably is connected in air inlet position by screw.Drier in the described drying device is silica-gel desiccant.Venthole 3 places are provided with air extractor, and this air extractor is mini fan 6.The signal output part of humidity sensor 4 is connected with the input of automobile ECU, and the output of automobile ECU is connected with the coil of a relay, and the contact of described relay then is electrically connected with the switch of described air extractor.
Want during use on humidity sensor 4 limit humidity value that can trigger humidity sensor 4 to be arranged to activation threshold value first, this activation threshold value also will corresponding change according to the different of season and temperature.Under the weather condition of drying, housing 1 inside of car headlamp all is communicated with outside atmosphere by air admission hole 2 and venthole 3, housing 1 interior humidity equates with atmospheric humidity, because housing 1 interior humidity value is lower than the activation threshold value of humidity sensor 4, therefore humidity sensor 4 is not triggered, mini fan can not start, and keeps the gas exchange by the draught head of nature inside and outside the housing 1 of car headlamp; When in the wet weather situation, when housing 1 interior humidity is higher than the activation threshold value of humidity sensor 4, humidity sensor 4 is triggered, mini fan 6 starts, be introduced into humid air in the housing 1 to effluxing with former, venthole 3 place's air only export but no import, certainly will cause air pressure inside to descend, therefore extraneous air just fills into from air admission hole 2 under differential pressure action, and the fresh air that fills into is dry through described drying device, therefore all become the air that humidity is lower than humidity sensor 4 activation threshold values after finally entering into housing 1 inside, like this, original moisture is discharged gradually, and dry air fills into again continuously, the humidity of final housing 1 inner air is controlled on the normal level, and unlikely generation condensation is hazed.
Claims (6)
1. the ventilation device of a car headlamp, be located on the car headlamp (1), the housing of car headlamp (1) is provided with air admission hole (2) and venthole (3), it is characterized in that being provided with humidity sensor (4) in the chamber that housing (1) surrounds, air admission hole (2) locates to be provided with the drying device with drier, venthole (3) locates to be provided with air extractor, humidity sensor (4) is connected with the ECU signal of automobile, the ECU of automobile is connected with a relay signal again, and described relay is electrically connected with the switch of described air extractor.
2. the ventilation device of car headlamp according to claim 1 is characterized in that air admission hole (2) and venthole (3) lay respectively at the both sides of housing (1).
3. the ventilation device of car headlamp according to claim 1 is characterized in that being provided with silica-gel desiccant in the described drying device.
4. the ventilation device of car headlamp according to claim 3 is characterized in that described drying device removably is connected in air inlet position.
5. the ventilation device of car headlamp according to claim 1 is characterized in that described drying device is cellular dry runner.
6. according to claim 1 and 2 or the ventilation device of 3 or 4 or 5 described car headlamps, it is characterized in that air extractor is mini fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381922 CN202747200U (en) | 2012-08-03 | 2012-08-03 | Ventilating structure of automotive headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381922 CN202747200U (en) | 2012-08-03 | 2012-08-03 | Ventilating structure of automotive headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747200U true CN202747200U (en) | 2013-02-20 |
Family
ID=47706590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381922 Expired - Fee Related CN202747200U (en) | 2012-08-03 | 2012-08-03 | Ventilating structure of automotive headlamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747200U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557508A (en) * | 2013-10-12 | 2014-02-05 | 奇瑞汽车股份有限公司 | Automotive headlamp with detachable ventilation and dehumidification device |
| CN103939823A (en) * | 2014-04-17 | 2014-07-23 | 南宁桂格精工科技有限公司 | Vehicle headlamp with circulating device |
| CN105526545A (en) * | 2016-01-19 | 2016-04-27 | 丹阳市雷兰斯汽车零部件有限公司 | Headlamp with circulating dehumidifying device |
| CN114162081A (en) * | 2021-12-09 | 2022-03-11 | 东风汽车有限公司东风日产乘用车公司 | Control method, anti-fogging structure and control device for preventing vehicle lamp from freezing and fogging |
-
2012
- 2012-08-03 CN CN 201220381922 patent/CN202747200U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557508A (en) * | 2013-10-12 | 2014-02-05 | 奇瑞汽车股份有限公司 | Automotive headlamp with detachable ventilation and dehumidification device |
| CN103939823A (en) * | 2014-04-17 | 2014-07-23 | 南宁桂格精工科技有限公司 | Vehicle headlamp with circulating device |
| CN105526545A (en) * | 2016-01-19 | 2016-04-27 | 丹阳市雷兰斯汽车零部件有限公司 | Headlamp with circulating dehumidifying device |
| CN114162081A (en) * | 2021-12-09 | 2022-03-11 | 东风汽车有限公司东风日产乘用车公司 | Control method, anti-fogging structure and control device for preventing vehicle lamp from freezing and fogging |
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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: 20130220 Termination date: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |