JPH055628U - Water drop removal mirror - Google Patents
Water drop removal mirrorInfo
- Publication number
- JPH055628U JPH055628U JP061023U JP6102391U JPH055628U JP H055628 U JPH055628 U JP H055628U JP 061023 U JP061023 U JP 061023U JP 6102391 U JP6102391 U JP 6102391U JP H055628 U JPH055628 U JP H055628U
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- heater
- water drop
- film layer
- drop removal
- 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.)
- Pending
Links
Abstract
(57)【要約】
【目的】 ヒータに流れる初期の最大電流を増加させる
ことなく、ヒータの表面の水滴を従来よりも速やかに除
去できるようにした水滴除去ミラーを提供すること。
【構成】 ミラー１とヒータ３との間には、熱伝導率
の高い材料からなる箔膜層５を設けた。
(57) [Summary] [Object] To provide a water drop removal mirror capable of removing water drops on the surface of a heater more quickly than before without increasing the initial maximum current flowing through the heater. [Structure] A foil film layer 5 made of a material having high thermal conductivity is provided between the mirror 1 and the heater 3.
Description
【０００１】[0001]
本考案は自動車用ドアミラー、或はフェンダーミラー等に使用されるもので、 ミラーの表面に付着した水滴（雨滴、霜、露等）を自動的に除去し得る水滴除去 ミラーに関する。 The present invention relates to a water drop removing mirror which is used for an automobile door mirror, a fender mirror or the like, and which can automatically remove water drops (raindrops, frost, dew, etc.) attached to the surface of the mirror.
【０００２】[0002]
従来、ミラーの裏面にヒータを密着固定し、このヒータの熱によりミラーの表 面に付着した水滴を除去し得るようにした水滴除去ミラーは公知である。 Conventionally, a water drop removing mirror is known in which a heater is closely fixed to the back surface of the mirror and water drops adhering to the front surface of the mirror can be removed by the heat of the heater.
【０００３】[0003]
斯かる従来の水滴除去ミラーにあっては、ミラーの表面の水滴を速やかに除去 するために、ヒータの電気的抵抗値を下げて電流を増加させることにより、ミラ ーに伝わる熱量を向上させていた。 In such a conventional water drop removal mirror, in order to quickly remove water drops on the surface of the mirror, the electric resistance value of the heater is lowered and the current is increased to improve the amount of heat transmitted to the mirror. It was
【０００４】 従って、ヒータのＰＴＣ特性（温度に比例して抵抗値が上昇する特性）により ヒータに流れる初期の電流値が比較的に増加するという問題点があった。Therefore, there is a problem that the initial current value flowing through the heater is relatively increased due to the PTC characteristic of the heater (the characteristic that the resistance value increases in proportion to the temperature).
【０００５】 本考案は上記事情に鑑みてなされたもので、ヒータに流れる初期の最大電流を 増加させることなく、ヒータの表面の水滴を従来よりも速やかに除去できるよう にした水滴除去ミラーを提供することを目的とする。The present invention has been made in view of the above circumstances, and provides a water droplet removal mirror that can remove water droplets on the surface of a heater more quickly than before without increasing the initial maximum current flowing through the heater. The purpose is to
【０００６】[0006]
上記の目的を達成するため本考案は、ミラーの裏面にヒータを密着固定した水 滴除去ミラーにおいて、前記ミラーと前記ヒータとの間に熱伝導率の高い材料か らなる箔膜層を設けたことを特徴とするものである。 In order to achieve the above object, the present invention provides a water drop removal mirror in which a heater is closely fixed to the back surface of a mirror, and a foil film layer made of a material having high thermal conductivity is provided between the mirror and the heater. It is characterized by that.
【０００７】[0007]
【作用】 ミラーとヒータとの間に設けた熱伝導率の高い箔膜層にヒータの熱が移行する ことにより、ＰＴＣ特性の変化が鈍化して初期の熱量が増加し、ミラー表面の曇 りが速やかになる。[Function] The heat of the heater is transferred to the foil film layer having a high thermal conductivity provided between the mirror and the heater, the change in the PTC characteristics is slowed down, the initial amount of heat is increased, and the surface of the mirror becomes cloudy. Will be prompt.
【０００８】[0008]
以下、本考案の一実施例を図１に基づき説明する。図１は本考案に係る水滴除 去ミラーの断面図であり、同図中、１はミラーで、板ガラス１ａの裏面の一部ま たは全部にアルミニウム等よりなる反射膜１ｂを蒸着等により設けてなり、この 反射膜１ｂは、蒸着等により設けた保護膜２により被覆してある。 An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a cross-sectional view of a water drop removing mirror according to the present invention. In the figure, 1 is a mirror, and a reflection film 1b made of aluminum or the like is provided on a part or all of the back surface of a plate glass 1a by vapor deposition or the like. The reflection film 1b is covered with a protective film 2 provided by vapor deposition or the like.
【０００９】 ミラー１の裏面にはヒータ３が密着固定してある。このヒータ３は、発熱体３ ａを、ポリエステル系合成樹脂よりなる絶縁シート３ｂ，３ｃ相互間に挟持して なるもので、ＰＴＣ特性を有する。この発熱体３ａはリード線４ａ，４ｂを介し て図示しない電源に接続されている。A heater 3 is closely fixed to the back surface of the mirror 1. The heater 3 has a heating element 3a sandwiched between insulating sheets 3b and 3c made of polyester synthetic resin, and has a PTC characteristic. The heating element 3a is connected to a power source (not shown) via lead wires 4a and 4b.
【００１０】 ミラー１とヒータ３との間には、アルミニウム或は銅等の熱伝導率の高い材料 からなる箔膜層５が接着、蒸着、圧延等により設てある。A foil film layer 5 made of a material having a high thermal conductivity such as aluminum or copper is provided between the mirror 1 and the heater 3 by adhesion, vapor deposition, rolling or the like.
【００１１】 この箔膜層５は、電気的に中立または接地（ＧＮＤ）の状態で存在している。 また、この箔膜層５は、保護膜２によりミラー１の反射膜１ｂとの化学的、電気 的な干渉を防止している。The foil film layer 5 exists in an electrically neutral or ground (GND) state. Further, the foil film layer 5 prevents the protective film 2 from chemically and electrically interfering with the reflective film 1b of the mirror 1.
【００１２】 以上の構成において、ヒータ３に通電すると、その熱が箔膜層５に移行するこ とにより、このヒータ３に流れる初期の最大電流が増加することがないので、Ｐ ＴＣ特性が鈍化し、初期段階の熱量が増加し、その結果として、ミラー１の表面 に付着した水滴を迅速且つ確実に除去することができ、ミラー１の曇りが速やか になくすことができる。In the above configuration, when the heater 3 is energized, its heat is transferred to the foil film layer 5 and the initial maximum current flowing through the heater 3 does not increase, so that the PTC characteristic is slowed down. However, the amount of heat in the initial stage increases, and as a result, the water droplets adhering to the surface of the mirror 1 can be removed quickly and reliably, and the fogging of the mirror 1 can be quickly eliminated.
【００１３】[0013]
【考案の効果】 以上の如く本考案によれば、ヒータに流れる初期の最大電流を増加させること なく、ヒータの表面の水滴を従来よりも速やかに除去できる。As described above, according to the present invention, water droplets on the surface of the heater can be removed more quickly than before without increasing the initial maximum current flowing through the heater.
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案の一実施例に係る水滴除去ミラーの断面
図である。FIG. 1 is a sectional view of a water drop removing mirror according to an embodiment of the present invention.
１ ミラー ３ ヒータ ５ 箔膜層 1 Mirror 3 Heater 5 Foil film layer
Claims (1)
滴除去ミラーにおいて、前記ミラーと前記ヒータとの間
に熱伝導率の高い材料からなる箔膜層を設けたことを特
徴とする水滴除去ミラー。Claims for utility model registration: 1. In a water drop removing mirror in which a heater is closely fixed to the back surface of a mirror, a foil film layer made of a material having high thermal conductivity is provided between the mirror and the heater. A water drop removal mirror characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP061023U JPH055628U (en) | 1991-07-09 | 1991-07-09 | Water drop removal mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP061023U JPH055628U (en) | 1991-07-09 | 1991-07-09 | Water drop removal mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH055628U true JPH055628U (en) | 1993-01-26 |
Family
ID=13159299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP061023U Pending JPH055628U (en) | 1991-07-09 | 1991-07-09 | Water drop removal mirror |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH055628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0689962B2 (en) † | 1994-06-29 | 2005-07-06 | Murakami Kaimeido Co., Ltd | Vehicle mirror |
-
1991
- 1991-07-09 JP JP061023U patent/JPH055628U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0689962B2 (en) † | 1994-06-29 | 2005-07-06 | Murakami Kaimeido Co., Ltd | Vehicle mirror |
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