CN103818353A - Electrothermal defogging rearview mirror - Google Patents
Electrothermal defogging rearview mirror Download PDFInfo
- Publication number
- CN103818353A CN103818353A CN201410057974.3A CN201410057974A CN103818353A CN 103818353 A CN103818353 A CN 103818353A CN 201410057974 A CN201410057974 A CN 201410057974A CN 103818353 A CN103818353 A CN 103818353A
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- rearview mirror
- back mirror
- defogging
- electrothermal
- emitting diode
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- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
The invention discloses an electrothermal defogging rearview mirror comprising a rearview mirror and a heating circuit on the rearview mirror. The heating circuit is provided with a heating sheet. A protective circuit is disposed in the middle of the heating sheet and comprises a bimetal strip switch, a resistor and an LED. The bimetal strip switch is serially connected to the middle of the heating sheet. After serially connected, the resistor and the LED are parallelly connected with the bimetal strip switch. The bimetal strip switch and the LED are both attached to the inner side of a rearview mirror body. The electrothermal defogging rearview mirror has the advantages that the temperature for electrothermal defogging is controlled in the reasonable range, an alarm indicator light is provided to remind a driver to switch off the electrothermal defogging switch in time, and the electrothermal defogging rearview mirror is handy, reliable, simple, effective, low in cost, and easy to implement.
Description
Technical field
The present invention relates to the electric heated defrosting back mirror on a kind of automobile.
Background technology
Automobile is in the time that the weather such as rain, snow, mist travel, and the easy frosting knot of back mirror mist becomes very fuzzy, and is inconvenient to clean, and affects traffic safety.For head it off, generally an electric heating piece or Electric radiant Heating Film are installed in the eyeglass of back mirror, chaufeur is opened back mirror electro heat switch, and electric heating piece will heat eyeglass, and the frost mist that condenses in lens surface is evaporated rapidly, thereby plays the effect of defrosting-defogging.This scheme cost is lower, is adopted by most car load factory.But, to forget and close electro heat switch or open by mistake while opening electro heat switch at normal weather when chaufeur, the long-time invalid heating of electric heating piece, not only wastes electric energy, when serious, can cause that back mirror circuit high temperature catches fire.
Summary of the invention
For solving the problems referred to above that occur in automobile electric heating defrost process, the invention provides a kind of Novel electric heating defrosting back mirror, this back mirror possesses invalid heating alarm indication function and high temperature protection function.
The technical solution adopted in the present invention is:
A kind of electric heated defrosting back mirror, comprises the heater circuit on back mirror and back mirror, and described heater circuit is provided with heating plate, in the middle of described electric heating piece, is provided with protective circuit, and described protective circuit comprises bimetal release, resistance and light-emitting diode; Described bimetal release is connected in the middle of electric heating piece, in parallel with bimetal release after resistance and light-emitting diode series connection; Described bimetal release, light-emitting diode are all attached to the inner side of back mirror.
The specified break-off signal of described bimetal release is 50 ± 5 ℃, and reset temperature is 30 ± 10 ℃, and bimetallic plate is close to the inner side central authorities of eyeglass, so that the temperature of accurate perception eyeglass.
Described light-emitting diode is arranged on the top of rear view mirror lens inner side as invalid heating warning indicator lamp, and peripheral region do not spray reflex-reflective material, facilitates chaufeur to observe.
Described resistance plays metering function, prevents that light-emitting diode overcurrent from burning out, and limit bimetal release disconnect time heating wire working current.
When normal work, bimetal release closure, electric heating piece produces heat heating eyeglass, and light-emitting diode extinguishes.In the time that eyeglass temperature reaches the specified break-off signal of bimetallic plate, bimetallic plate disconnects, and light-emitting diode is lighted, and informs that chaufeur closes electric heated defrosting switch in time.
Advantage of the present invention is: the temperature of electric heated defrosting is controlled in zone of reasonableness, and has warning indicator lamp to remind chaufeur to close in time electric heated defrosting switch, and convenient and reliable effectively simple, with low cost being easy to realized.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Wherein, 1, protective circuit; 2, electric heating piece; 3, eyeglass.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As Figure 1-Figure 2, a kind of Novel electric heating defrosting back mirror, a protective circuit 1 of series connection in the middle of electric heating piece 2, protective circuit 1 is made up of bimetal release K1, resistance R 1, light-emitting diode L1.The specified break-off signal of described bimetal release K1 is 50 ± 5 ℃, and reset temperature is 30 ± 10 ℃, and bimetallic plate is close to the inner side middle position of eyeglass 3, so that the temperature of accurate perception eyeglass 3.Described light-emitting diode L1 is arranged on the inner side at rear view mirror lens 3 tops as invalid heating warning indicator lamp, and peripheral region do not spray reflex-reflective material, facilitates chaufeur to observe.1 metering function of described resistance R, prevents that light-emitting diode L1 overcurrent from burning out, and limit bimetal release K1 disconnect time heating wire working current.
Embodiment: when use, the present invention is reliably connected with vehicle control circuit, when vehicle is in the time that the weather such as rain, snow, mist travel, chaufeur closed electrical heating defrost switch K2.Power supply E1 makes electric heating piece 2 produce heat heating eyeglass 3, bimetal release K1 closure, and light-emitting diode L1 is in extinguishing state, and the frost mist that condenses in eyeglass 3 surfaces absorbs heat, evaporation rapidly, it is clear that minute surface becomes.In the time not having frost mist to absorb the temperature that electric heating piece 2 produces, eyeglass 3 temperature reach the specified break-off signal of bimetal release K1 gradually, and bimetal release K1 disconnects, and light-emitting diode L1 lights, and informs that chaufeur closes electric heated defrosting K switch 2 in time.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make and distortion still in protection scope of the present invention.
Claims (3)
1. an electric heated defrosting back mirror, it is characterized in that, comprise the heater circuit on back mirror and back mirror, described heater circuit is provided with heating plate, in the middle of described electric heating piece, be provided with protective circuit, described protective circuit comprises bimetal release, resistance and light-emitting diode; Described bimetal release is connected in the middle of electric heating piece, in parallel with bimetal release after resistance and light-emitting diode series connection; Described bimetal release, light-emitting diode are all attached to the inner side of back mirror.
2. electric heated defrosting back mirror as claimed in claim 1, is characterized in that, the specified break-off signal of described bimetal release is 50 ± 5 ℃, and reset temperature is 30 ± 10 ℃, and bimetallic plate is close to the inner side central authorities of eyeglass.
3. electric heated defrosting back mirror as claimed in claim 1, is characterized in that, described light-emitting diode is arranged on the top of rear view mirror lens inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057974.3A CN103818353B (en) | 2014-02-20 | 2014-02-20 | A kind of electric heated defrosting rearview mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057974.3A CN103818353B (en) | 2014-02-20 | 2014-02-20 | A kind of electric heated defrosting rearview mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103818353A true CN103818353A (en) | 2014-05-28 |
| CN103818353B CN103818353B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410057974.3A Active CN103818353B (en) | 2014-02-20 | 2014-02-20 | A kind of electric heated defrosting rearview mirror |
Country Status (1)
| Country | Link |
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| CN (1) | CN103818353B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484305A (en) * | 2017-09-11 | 2019-03-19 | 福特全球技术公司 | For handling the vehicle mirror assembly of moisture accumulation |
| CN111336756A (en) * | 2018-12-18 | 2020-06-26 | 苏州三星电子有限公司 | Anti-condensation device and anti-condensation method |
| CN114323568A (en) * | 2022-03-14 | 2022-04-12 | 武汉普赛斯电子技术有限公司 | Three-temperature testing system of optical device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408853A2 (en) * | 1989-07-21 | 1991-01-23 | Hohe Kg | Electrical heating device for the reflective surface of a vehicle rearview mirror |
| JPH08216785A (en) * | 1995-02-13 | 1996-08-27 | Murakami Kaimeidou:Kk | Vehicular rearview mirror |
| CN1280931A (en) * | 1999-05-18 | 2001-01-24 | 梅卡朗两合公司 | Heatable rear-view mirror |
| CN203402150U (en) * | 2013-06-18 | 2014-01-22 | 杭州华州科技有限公司 | Automobile rearview mirror heating and indicating lamp structure |
| CN203832445U (en) * | 2014-02-20 | 2014-09-17 | 中通客车控股股份有限公司 | Electric heating defrosting rearview mirror |
-
2014
- 2014-02-20 CN CN201410057974.3A patent/CN103818353B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408853A2 (en) * | 1989-07-21 | 1991-01-23 | Hohe Kg | Electrical heating device for the reflective surface of a vehicle rearview mirror |
| JPH08216785A (en) * | 1995-02-13 | 1996-08-27 | Murakami Kaimeidou:Kk | Vehicular rearview mirror |
| CN1280931A (en) * | 1999-05-18 | 2001-01-24 | 梅卡朗两合公司 | Heatable rear-view mirror |
| CN203402150U (en) * | 2013-06-18 | 2014-01-22 | 杭州华州科技有限公司 | Automobile rearview mirror heating and indicating lamp structure |
| CN203832445U (en) * | 2014-02-20 | 2014-09-17 | 中通客车控股股份有限公司 | Electric heating defrosting rearview mirror |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484305A (en) * | 2017-09-11 | 2019-03-19 | 福特全球技术公司 | For handling the vehicle mirror assembly of moisture accumulation |
| CN111336756A (en) * | 2018-12-18 | 2020-06-26 | 苏州三星电子有限公司 | Anti-condensation device and anti-condensation method |
| CN114323568A (en) * | 2022-03-14 | 2022-04-12 | 武汉普赛斯电子技术有限公司 | Three-temperature testing system of optical device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103818353B (en) | 2016-05-11 |
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Address after: 252000 No.261 Huanghe Road, economic development zone, Liaocheng City, Shandong Province Patentee after: Zhongtong bus Limited by Share Ltd. Address before: 252000 No. 10, Dongchangfu, Liaocheng District, Shandong, Jianshe Road Patentee before: ZHONGTONG BUS HOLDING Co.,Ltd. |