JPH0719935Y2 - Ultrasonic water drop remover with heater - Google Patents
Ultrasonic water drop remover with heaterInfo
- Publication number
- JPH0719935Y2 JPH0719935Y2 JP1988157670U JP15767088U JPH0719935Y2 JP H0719935 Y2 JPH0719935 Y2 JP H0719935Y2 JP 1988157670 U JP1988157670 U JP 1988157670U JP 15767088 U JP15767088 U JP 15767088U JP H0719935 Y2 JPH0719935 Y2 JP H0719935Y2
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- heater
- water drop
- ultrasonic water
- back surface
- Prior art date
- 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 - Lifetime
Links
Landscapes
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は車両用バックミラーのごときミラーの水滴を除
去する装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a device for removing water droplets from a mirror such as a vehicle rearview mirror.
［従来の技術］ 従来、降雨中や多湿時の走行中にバックミラーに雨滴ま
たは霜が付着したとき、後方視認が不十分となり、車両
の走行安全性に問題があった。これを防ぐため、ミラー
表面に形成させた発熱層に通電して霧及び曇りを除去す
るヒータが知られている（実開昭51-68140号および同51
-80842号公報）。またミラー裏面に振動子を設けて発振
させる振動ミラーも提案されている。例えば振動子を予
め決められた一定幅でスイープさせ、ミラー表面の振幅
位置を変動させたり、水滴の付着状態によって変化する
ミラーの共振周波数を調べて発振させたりしてミラー表
面の水滴を除去している（特開昭62-238149号および実
開昭63-69646号公報）。[Prior Art] Conventionally, when raindrops or frost adheres to the rearview mirror during traveling in the rain or high humidity, rearward visibility becomes insufficient and there is a problem in traveling safety of the vehicle. In order to prevent this, a heater is known that energizes the heating layer formed on the mirror surface to remove fog and fog (Actual Nos. 51-68140 and 51).
-80842). A vibrating mirror has also been proposed in which a vibrator is provided on the back surface of the mirror to oscillate. For example, the oscillator is swept with a predetermined width to change the amplitude position on the mirror surface, or the resonance frequency of the mirror that changes depending on the state of water droplet attachment is checked to oscillate to remove water droplets on the mirror surface. (Japanese Patent Laid-Open No. 62-238149 and Japanese Utility Model Laid-Open No. 63-69646).
［考案が解決しようとする課題］ ヒーター式で水滴を除去するにはミラー表面温度を約50
〜60℃に維持しなければならないが、所定温度に到達す
るまでの立上り時間が比較的長くかかり、水滴を気化さ
せるまでに更に１〜２分かかるという難点がある。また
ミラー裏面に振動子を設けて水滴を除去する場合に、視
界を防げるような非常に細かい霧状の水滴が除去できな
いし、ミラー裏面に発熱膜等を設定してもリークのため
の絶縁材料が振動の妨げとなるなどの問題があった。[Problems to be solved by the invention] In order to remove water droplets with the heater type, the mirror surface temperature is set to about 50.
Although it has to be maintained at -60 ° C, it takes a relatively long rise time to reach a predetermined temperature, and it takes 1 to 2 minutes to vaporize the water droplets. Also, when a water drop is removed by installing a vibrator on the back surface of the mirror, it is not possible to remove extremely fine mist-like water drops that prevent visibility, and even if a heating film is set on the back surface of the mirror, an insulating material for leaks is used. There was a problem such as that it interferes with vibration.
この考案はミラー表面の水滴を効率よく除去することの
できるヒーター付超音波水滴除去装置を提供することを
目的とする。An object of the present invention is to provide an ultrasonic water drop removing device with a heater that can efficiently remove water drops on the mirror surface.
［課題を解決するための手段］ 上記目的を達成するため、本考案はミラー裏面に超音波
振動子を貼着するとともに、空気層を密封した高分子材
料シートを介してヒーターパネルを密接配置したことを
特徴とするものである。[Means for Solving the Problems] In order to achieve the above object, in the present invention, an ultrasonic transducer is attached to the rear surface of a mirror, and a heater panel is closely arranged via a polymer material sheet in which an air layer is sealed. It is characterized by that.
［作用］ ミラー表面に水滴が付着したとき、ミラーガラスまたは
振動子の板厚、材質等によつて定まる共振周波数帯で振
動子を発振させるとともに、ヒーターパネルを通電する
ことにより、水滴の大小や付着場を問わず、ミラー表面
のすべての水滴を急速に除去する。ミラー裏面に高分子
材料シートを介在させたので、超音波振動が減衰するこ
とがない。[Operation] When water droplets adhere to the mirror surface, the oscillator is oscillated in a resonance frequency band determined by the plate thickness and material of the mirror glass or the oscillator, and the heater panel is energized to reduce the size of the water droplets. Rapidly removes all water droplets on the mirror surface, regardless of the adhesion field. Since the polymer material sheet is interposed on the back surface of the mirror, ultrasonic vibration is not attenuated.
［実施例］ 次に図面に基づいて本考案を具体的に説明する。第１図
は本考案ヒーター付超音波水滴除去装置の分解斜視図、
第２図は断面図である。[Embodiment] Next, the present invention will be specifically described with reference to the drawings. FIG. 1 is an exploded perspective view of an ultrasonic water drop removing device with a heater according to the present invention,
FIG. 2 is a sectional view.
図に示すようにミラーガラス１の裏面に、PZTのごとき
圧電振動子２を貼着し、圧電振動子１を除くミラーガラ
ス裏面ほぼ全面に空気層を密封した高分子材料シート３
を配置し、更に正特性のヒーターパネル４を密接させ
る。As shown in the figure, a polymer material sheet 3 in which a piezoelectric vibrator 2 such as PZT is attached to the back surface of the mirror glass 1 and an air layer is sealed on almost the entire back surface of the mirror glass except the piezoelectric vibrator 1
Is arranged, and the heater panel 4 having a positive characteristic is further brought into close contact with it.
前記高分子材料シート３は、図示のように圧電振動子１
を収容する穴５を有している。このシート３は空気層を
密封してミラーガラス１の振動を保持させるもので、ス
ポンジシート、繊維質シート若しくはこれらの複合シー
トの形態とし、更に熱伝導効率を上げるために金属粉を
含有させることも可能である。ヒーターパネル４は、上
下縁部から櫛歯状の導電部が互いに位相をずらして形成
されたパターンを有している。第２図はミラーガラス１
の裏面に、圧電振動子２を貼着し、空気層を密封した高
分子材料シート３を介置してヒーターパネル４を密接配
置したうえ全体をミラーホルダー６に嵌着した状態の断
面図を示す。The polymer material sheet 3 is a piezoelectric vibrator 1 as shown.
Has a hole 5 for accommodating therein. This sheet 3 is for sealing the air layer to keep the vibration of the mirror glass 1, and is in the form of a sponge sheet, a fibrous sheet or a composite sheet of these, and further contains a metal powder to increase the heat transfer efficiency. Is also possible. The heater panel 4 has a pattern in which comb-teeth-shaped conductive portions are formed with their phases shifted from the upper and lower edges. Figure 2 shows mirror glass 1
A cross-sectional view of a state where the piezoelectric vibrator 2 is adhered to the back surface of the device, the heater panel 4 is closely arranged via the polymer material sheet 3 in which the air layer is sealed, and the whole is fitted to the mirror holder 6. Show.
図示省略の発振回路により圧電振動子２を駆動し、振動
子２で誘起された振動によってミラー表面の水滴を霧化
除去すると同時に、ヒーターパネル４に通電することに
より、ミラー表面を所定温度に昇温させて再付着した霧
や、霧化できない水滴、または冬期凍結時の霜を完全に
除去する。The piezoelectric oscillator 2 is driven by an oscillation circuit (not shown), and water droplets on the mirror surface are atomized and removed by the vibration induced by the oscillator 2. At the same time, the heater panel 4 is energized to raise the mirror surface to a predetermined temperature. Completely remove warmed and reattached fog, non-atomizable water drops, or frost during winter freezing.
［考案の効果］ 本考案によれば、超音波振動子を貼着したミラー裏面に
空気層を密封した高分子材料シートを介置してヒーター
パネルを密接配置したので、超音波振動を減衰させるこ
となく、ミラーガラス表面の大小の水滴や霜を急速、か
つ完全に除去することができる。[Advantage of Invention] According to the present invention, since the heater panel is closely arranged with the polymer material sheet with the air layer sealed on the back surface of the mirror to which the ultrasonic transducer is attached, the ultrasonic vibration is attenuated. Without this, large and small water droplets and frost on the mirror glass surface can be removed rapidly and completely.
第１図は本考案ヒーター付超音波水滴除去装置の分解斜
視図、第２図は部分的拡大断面図である。 １……ミラーガラス、２……振動子、３……空気層を密
封した高分子材料シート、４……ヒーターパネル。FIG. 1 is an exploded perspective view of an ultrasonic water drop removing device with a heater according to the present invention, and FIG. 2 is a partially enlarged sectional view. 1 ... Mirror glass, 2 ... Oscillator, 3 ... Polymer material sheet with air layer sealed, 4 ... Heater panel.
Claims (1)
もに、空気層を密封した高分子材料シートを介してヒー
ターパネルを密接配置したことを特徴とするヒーター付
超音波水滴除去装置。1. An ultrasonic water drop removing apparatus with a heater, wherein an ultrasonic vibrator is attached to the back surface of the mirror, and a heater panel is closely arranged via a polymer material sheet in which an air layer is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988157670U JPH0719935Y2 (en) | 1988-12-05 | 1988-12-05 | Ultrasonic water drop remover with heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988157670U JPH0719935Y2 (en) | 1988-12-05 | 1988-12-05 | Ultrasonic water drop remover with heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0277171U JPH0277171U (en) | 1990-06-13 |
| JPH0719935Y2 true JPH0719935Y2 (en) | 1995-05-10 |
Family
ID=31437316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988157670U Expired - Lifetime JPH0719935Y2 (en) | 1988-12-05 | 1988-12-05 | Ultrasonic water drop remover with heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719935Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2531307Y2 (en) * | 1991-02-21 | 1997-04-02 | 株式会社村上開明堂 | Mirror water drop remover |
| JP2541566Y2 (en) * | 1991-10-02 | 1997-07-16 | 株式会社村上開明堂 | Monitor-water drop removal device for camera |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6036498Y2 (en) * | 1981-09-28 | 1985-10-30 | 市光工業株式会社 | Outside mirror with heater |
| JPH0527325Y2 (en) * | 1986-08-01 | 1993-07-12 |
-
1988
- 1988-12-05 JP JP1988157670U patent/JPH0719935Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0277171U (en) | 1990-06-13 |
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