JP2000075052A - Window glass with sensor for vehicle - Google Patents
Window glass with sensor for vehicleInfo
- Publication number
- JP2000075052A JP2000075052A JP10243978A JP24397898A JP2000075052A JP 2000075052 A JP2000075052 A JP 2000075052A JP 10243978 A JP10243978 A JP 10243978A JP 24397898 A JP24397898 A JP 24397898A JP 2000075052 A JP2000075052 A JP 2000075052A
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- Japan
- Prior art keywords
- electrode
- glass
- auxiliary
- glass plate
- electrodes
- 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.)
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、雨滴（雪を含む）
を検知する車両用センサ付き窓ガラスに関する。[0001] The present invention relates to raindrops (including snow).
The present invention relates to a windowpane with a sensor for a vehicle that detects a windshield.
【０００２】[0002]
【従来の技術】雨滴を検知し、自動車のワイパーの制御
を行うために、窓ガラスにセンサを設けることが提案さ
れている。例えば、特開昭５７−８８３４６号公報に
は、窓ガラスの車外側面に付着した雨滴による車内に入
射する光の変化を捉えることで、雨滴の付着の有無を検
知する雨滴検知器が開示されている。この雨滴検知器
は、車内側に設けられた受光素子を用いて、雨滴の有無
による受光量の変化を検出するものである。2. Description of the Related Art It has been proposed to provide a sensor on a window glass for detecting raindrops and controlling a wiper of an automobile. For example, Japanese Patent Application Laid-Open No. 57-88346 discloses a raindrop detector that detects the presence or absence of raindrops by capturing a change in light incident on the inside of the vehicle due to raindrops adhering to the outside of the window glass. I have. This raindrop detector detects a change in the amount of received light due to the presence or absence of raindrops, using a light receiving element provided inside the vehicle.
【０００３】しかし、窓ガラスの車内側面に付着する結
露によっても受光量の変化が生じるため、雨滴と結露と
を区別できず誤作動の原因となる。特にこの種の検知器
は、検知情報に基づきワイパーの作動を制御することが
あるので、結露の発生によってもワイパーの作動を招く
不具合が生じる。[0003] However, the amount of received light also changes due to dew condensation adhering to the interior surface of the window glass, so that raindrops and dew condensation cannot be distinguished, resulting in malfunction. In particular, since this type of detector sometimes controls the operation of the wiper based on the detection information, there is a problem that the operation of the wiper is caused by the occurrence of dew condensation.
【０００４】[0004]
【発明が解決しようとする課題】一方、雨滴の有無を静
電容量の変化で捉えることも提案されている。しかし、
窓ガラスにおける静電容量の変化を捉えようとした場
合、次のような不具合がある。静電容量の値は、そのほ
とんどがガラス板に依存するものであるため、雨滴によ
る静電容量の変化が得られる静電容量の値に比べてきわ
めて小さい。その結果、雨滴の検出感度が低く精度よく
雨滴の検知をできなかった。On the other hand, it has been proposed to detect the presence or absence of raindrops by a change in capacitance. But,
When trying to catch the change in the capacitance of the window glass, there are the following problems. Since most of the capacitance value depends on the glass plate, the capacitance value is much smaller than the capacitance value at which a change in capacitance due to raindrops is obtained. As a result, the detection sensitivity of raindrops was low and it was not possible to detect raindrops accurately.
【０００５】しかも、こうした静電容量を検知する手段
は、全体的に大きな形状のものである。一方で、自動車
の窓ガラスのうち、最も雨滴検知機能が求められるのは
フロントガラスである。そのため、フロントガラスに大
きな検知手段が設けられると、運転者に目障りに感じら
れ前方視界の妨げになる。[0005] In addition, the means for detecting the capacitance has a large shape as a whole. On the other hand, among windshields of automobiles, a windshield is most required to have a function of detecting raindrops. Therefore, if a large detecting means is provided on the windshield, the driver feels obstructive and obstructs the front view.
【０００６】本発明の目的は、従来技術の有する前述の
欠点を解消することにあり、従来知られていなかった、
検出感度が高く、誤作動がなく、コンパクトな形状の車
両用センサ付き窓ガラスを新規に提供するものである。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned disadvantages of the prior art.
Another object of the present invention is to provide a compact window glass with a sensor having a high detection sensitivity, no malfunction, and a compact shape.
【０００７】[0007]
【課題を解決するための手段】本発明は前述の課題を解
決すべくなされたものであり、複数枚のガラス板が中間
膜を介して接合された合わせガラスと、前記複数枚のガ
ラス板のうちの最も車内側のガラス板の車内側面に設け
られた所定形状の第１電極と、第１電極が設けられた面
と同じ面に第１電極から所定間隔を隔てて設けられた第
１電極を囲い込む形状をした第２電極と、一方向に開口
を有しており、開口端が第２電極に当接して第１電極を
覆い囲むように前記最も車内側のガラス板の車内側に設
けられた金属製箱体と、第１電極および第２電極のそれ
ぞれと電気的に接続された信号処理手段と、前記複数の
ガラス板の間に第１電極に対向するように設けられた所
定形状の第１補助電極と、前記複数のガラス板の間に第
１補助電極から所定間隔を隔てて設けられた第１補助電
極を囲い込む形状をした第２補助電極と、を少なくとも
備えた車両用センサ付き窓ガラスを提供する。Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and comprises a laminated glass in which a plurality of glass plates are joined via an intermediate film, and a laminated glass plate. A first electrode having a predetermined shape provided on the inner side surface of the innermost glass plate, and a first electrode provided on the same surface as the surface on which the first electrode is provided at a predetermined distance from the first electrode; And a second electrode having a shape surrounding the first glass plate, and having an opening in one direction, the opening end of which contacts the second electrode and covers the first electrode. A metal box provided, signal processing means electrically connected to each of the first electrode and the second electrode, and a predetermined shape provided between the plurality of glass plates so as to face the first electrode. A first auxiliary electrode and a first auxiliary electrode between the plurality of glass plates; Providing at least includes the sensor-equipped vehicle glazing and the second auxiliary electrode, the in which the enclosing shape first auxiliary electrode provided at intervals.
【０００８】[0008]
【発明の実施の形態】以下、図面に基づき本発明をさら
に詳細に説明する。図１は、本発明の車両用センサ付き
窓ガラスの一例を示す要部概略断面図である。車両用窓
ガラス１０は、２枚のガラス板１、１’が中間膜９を介
して接合された合わせガラスを、基本構成としている。
車内側に配されるガラス板１の車内側面には、円形の第
１電極２が設けられている。また、同じガラス板１の車
内側面には、第１電極２から所定間隔離れ、かつ第１電
極２を囲い込むようにドーナツ形状の第２電極３が設け
られている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a schematic cross-sectional view of an essential part showing an example of a window glass with a sensor for a vehicle according to the present invention. The vehicle window glass 10 has a basic configuration of a laminated glass in which two glass plates 1 and 1 ′ are joined via an intermediate film 9.
A circular first electrode 2 is provided on the inside surface of the glass plate 1 disposed inside the vehicle. In addition, a donut-shaped second electrode 3 is provided on the inside surface of the same glass plate 1 at a predetermined distance from the first electrode 2 and surrounds the first electrode 2.
【０００９】第２電極３には、一方向に開口を有する金
属製の箱体４の開口端が当接されている。こうして、第
１電極２は箱体４により覆い囲まれ、外気から遮断され
る。この場合、第１電極２と箱体４とは非接触である。An opening end of a metal box 4 having an opening in one direction is in contact with the second electrode 3. Thus, the first electrode 2 is covered and surrounded by the box body 4 and is shielded from the outside air. In this case, the first electrode 2 is not in contact with the box 4.
【００１０】第１電極２および第２電極３には、第１リ
ード線７および第２リード線８がそれぞれ電気的に接続
されていて、第１リード線７および第２リード線８は、
それぞれ信号処理回路１１に接続されている。なお、第
１電極２は箱体４により外気から遮断されているため、
箱体４の一部に孔を設け、この孔に第１リード線７を挿
通させることによって、信号処理回路１１に接続され
る。また、第２リード線８は箱体４を介して第２電極に
接続されている。A first lead wire 7 and a second lead wire 8 are electrically connected to the first electrode 2 and the second electrode 3, respectively, and the first lead wire 7 and the second lead wire 8 are
Each is connected to the signal processing circuit 11. Since the first electrode 2 is shielded from the outside air by the box body 4,
A hole is provided in a part of the box body 4, and the first lead wire 7 is inserted through the hole to be connected to the signal processing circuit 11. The second lead wire 8 is connected to the second electrode via the box 4.
【００１１】ガラス板１とガラス板１’との間には、第
１電極２に対向する位置に円形の第１補助電極５が設け
られている。さらに、ガラス板１とガラス板１’との間
には、第１補助電極５から所定間隔離れ、かつ第１補助
電極５を囲い込むようにドーナツ形状の第２補助電極６
が設けられている。A circular first auxiliary electrode 5 is provided between the glass plate 1 and the glass plate 1 ′ at a position facing the first electrode 2. Further, between the glass plate 1 and the glass plate 1 ′, a donut-shaped second auxiliary electrode 6 is provided at a predetermined distance from the first auxiliary electrode 5 and surrounds the first auxiliary electrode 5.
Is provided.
【００１２】こうして構成された車両用センサ付き窓ガ
ラスは、車外側面に付着した雨滴を次のように検知す
る。すなわち、窓ガラス１０の車外側面に雨滴２０が付
着すると、第１電極２と第２電極３との間の静電容量が
変化する。この静電容量の変化を、信号処理回路１１で
定量化し、この値が所定値以上になると、その信号をワ
イパー制御回路１２へ送り、ワイパーモーター１３を駆
動させる。こうして、雨滴があるものと検知された際
に、自動的にワイパーを作動させることができる。[0012] The windowpane with a sensor for a vehicle configured as described above detects raindrops attached to the outer side surface of the vehicle as follows. That is, when the raindrops 20 adhere to the outer surface of the window glass 10, the capacitance between the first electrode 2 and the second electrode 3 changes. The change in the capacitance is quantified by the signal processing circuit 11, and when the value becomes equal to or larger than a predetermined value, the signal is sent to the wiper control circuit 12 to drive the wiper motor 13. Thus, when it is detected that raindrops are present, the wiper can be automatically operated.
【００１３】ところで、一般の自動車において最も雨滴
検知機能が求められるのは運転者が前方を視認するフロ
ントガラスである。通常、フロントガラスの板厚は、総
厚で５ｍｍ程度である。そのため、第１電極２および第
２電極３は窓ガラス１０の車内側面に設けられているこ
とから、５ｍｍ厚のガラス部分を介して雨滴２０による
影響を捉える必要がある。したがって、微量の雨滴を充
分に検知できない場合がある。By the way, what is most required of a raindrop detecting function in a general automobile is a windshield on which a driver can visually recognize the front. Usually, the total thickness of the windshield is about 5 mm. Therefore, since the first electrode 2 and the second electrode 3 are provided on the inside surface of the window glass 10, it is necessary to capture the influence of the raindrop 20 through the glass part having a thickness of 5 mm. Therefore, a small amount of raindrops may not be sufficiently detected.
【００１４】そこで、本発明では２枚のガラス板１、
１’間に補助電極を設けることによって、微量の雨滴を
も検知できるようにしている。すなわち、窓ガラス１０
では、第１補助電極５を車内側のガラス板１を介して第
１電極２に対向させ、第２補助電極６を車内側のガラス
板１を介して第２電極３に対向させている。こうして、
第１補助電極５を第１電極２に容量結合させ、第２補助
電極６を第２電極３に容量結合させている。こうして、
第１補助電極５と第１電極２とが、第２補助電極６と第
２電極３とが、それぞれ交流的に導通していることにな
る。Therefore, in the present invention, two glass plates 1,
By providing an auxiliary electrode between 1 ', a small amount of raindrop can be detected. That is, the window glass 10
Here, the first auxiliary electrode 5 is opposed to the first electrode 2 via the glass plate 1 on the inside of the vehicle, and the second auxiliary electrode 6 is opposed to the second electrode 3 via the glass plate 1 on the inside of the vehicle. Thus,
The first auxiliary electrode 5 is capacitively coupled to the first electrode 2, and the second auxiliary electrode 6 is capacitively coupled to the second electrode 3. Thus,
The first auxiliary electrode 5 and the first electrode 2 are electrically connected to each other, and the second auxiliary electrode 6 and the second electrode 3 are electrically connected to each other.
【００１５】第１、第２補助電極間では、雨滴による静
電容量の変化を１枚分のガラス厚みだけを介して雨滴の
影響を感知できる。一方で、第１補助電極５と第１電極
２とが、第２補助電極６と第２電極３とが、それぞれ交
流的に導通していることから、第１補助電極５と第２補
助電極６との間の静電容量の変化を第１電極２および第
２電極３で検知でき、この静電容量の変化を信号処理回
路１１に送ることができる。こうして、微量の雨滴をも
充分に検知できる窓ガラスを得ることができる。[0015] Between the first and second auxiliary electrodes, the change in capacitance due to raindrops can be sensed by the influence of raindrops through only one glass thickness. On the other hand, since the first auxiliary electrode 5 and the first electrode 2 and the second auxiliary electrode 6 and the second electrode 3 are electrically conductive in an alternating current, respectively, the first auxiliary electrode 5 and the second auxiliary electrode 2 are electrically connected. 6 can be detected by the first electrode 2 and the second electrode 3, and the change in capacitance can be sent to the signal processing circuit 11. Thus, it is possible to obtain a window glass capable of sufficiently detecting even a small amount of raindrops.
【００１６】本発明における第１、２電極や第１、２補
助電極は、例えば銅箔、アルミ箔、真鍮、鉄、ステンレ
ス等の導体からなり、ガラス板１に接着、蒸着等の適宜
の手段により設けることができる。また、銀系等の適宜
の透明導電膜を蒸着等の適宜の手段により設けてもよ
く、銀等の金属粉を含有したガラスペーストをプリント
し、焼成して設けることもできる。一方、第１、２補助
電極は、銅箔、アルミ箔、真鍮、鉄、ステンレス等の導
体を中間膜に貼り付けたり埋め込むことによって、２枚
のガラス板間に設けることもできる。The first and second electrodes and the first and second auxiliary electrodes in the present invention are made of, for example, a conductor such as copper foil, aluminum foil, brass, iron, stainless steel, etc. Can be provided. Further, an appropriate transparent conductive film of silver or the like may be provided by an appropriate means such as evaporation, or a glass paste containing metal powder of silver or the like may be printed and fired. On the other hand, the first and second auxiliary electrodes can be provided between the two glass plates by attaching or embedding a conductor such as copper foil, aluminum foil, brass, iron, or stainless steel to the intermediate film.
【００１７】これらの電極の形状としては、上記実施形
態のように円形を基本とした形状が例示できる。これを
示すのが図２であり、図２（ａ）は車外側から窓ガラス
を見た要部正面図、図２（ｂ）は箱体を取り除いて車内
側から窓ガラスを見た要部正面図である。本例では、第
１電極２として直径２７ｍｍの円形の銅箔、第２電極３
として内径２９ｍｍ、外径４９ｍｍのドーナツ形状の銅
箔、第１補助電極５として直径１８ｍｍの円形の銅箔、
第２補助電極６として内径２９ｍｍ外径４９ｍｍのドー
ナツ形状の銅箔、を用いている。第１補助電極５の中心
は第１電極２の中心に（ガラス板面に垂直な方向から見
て）一致しており、第２補助電極６の内径中心は第２電
極６の内径中心に（ガラス板面に垂直な方向から見て）
一致している。なお、第１、２補助電極５、６は、それ
ぞれ車内側ガラス板１の車外側面、車外側ガラス板１’
の車内側面、中間膜面、中間膜内のいずれかに設けられ
ている。The shape of these electrodes can be exemplified by a shape based on a circle as in the above embodiment. This is shown in FIG. 2, in which FIG. 2 (a) is a front view of the main part of the window glass viewed from the outside of the vehicle, and FIG. It is a front view. In this example, a circular copper foil having a diameter of 27 mm as the first electrode 2 and a second electrode 3
As a donut-shaped copper foil having an inner diameter of 29 mm and an outer diameter of 49 mm, a circular copper foil having a diameter of 18 mm as the first auxiliary electrode 5,
A donut-shaped copper foil having an inner diameter of 29 mm and an outer diameter of 49 mm is used as the second auxiliary electrode 6. The center of the first auxiliary electrode 5 coincides with the center of the first electrode 2 (as viewed from the direction perpendicular to the glass plate surface), and the center of the inner diameter of the second auxiliary electrode 6 matches the center of the inner diameter of the second electrode 6 ( (As viewed from the direction perpendicular to the glass plate)
Match. The first and second auxiliary electrodes 5 and 6 are respectively provided on the vehicle exterior surface of the vehicle interior glass plate 1 and the vehicle exterior glass plate 1 ′.
Of the vehicle, the surface of the intermediate film, or the inside of the intermediate film.
【００１８】第１電極を円形にする場合、その直径とし
て５〜４０ｍｍが例示される。第２電極をドーナツ形状
にする場合、内径として７〜４２ｍｍ、外径として２７
〜６２ｍｍが例示される。これに応じて、第１補助電極
の直径として３〜３８ｍｍが、第２補助電極６の内径と
して７〜４９ｍｍが、外径として２７〜６９ｍｍが、そ
れぞれ例示できる。When the first electrode has a circular shape, its diameter is, for example, 5 to 40 mm. When the second electrode has a donut shape, the inner diameter is 7 to 42 mm and the outer diameter is 27 mm.
６２62 mm is exemplified. Accordingly, the diameter of the first auxiliary electrode is 3 to 38 mm, the inner diameter of the second auxiliary electrode 6 is 7 to 49 mm, and the outer diameter is 27 to 69 mm.
【００１９】第１電極、第１補助電極の形状は、円形の
他に三角形状、四角形状等であってもよく、両者が容量
結合し得るものであれば、両者が厳密の同形状でなくて
もよい。また、第２電極、第２補助電極の形状は、第１
電極、第１補助電極に、それぞれ接触せずに囲い込むよ
うな形状であれば、円形を基本としたドーナツ形状でな
くてもよい。これらの電極は、ノイズを抑えて雨滴によ
る静電容量の変化を検知できる点に鑑みると、円形を基
本とした形状であることが好ましい。The shapes of the first electrode and the first auxiliary electrode may be triangular, quadratic, etc. in addition to the circular shape. If the two can be capacitively coupled, they are not exactly the same shape. You may. The shapes of the second electrode and the second auxiliary electrode are the same as those of the first electrode.
The donut shape is not necessarily a circular donut shape as long as the shape encloses the electrode and the first auxiliary electrode without contacting each other. In view of the fact that these electrodes can detect a change in capacitance due to raindrops while suppressing noise, it is preferable that these electrodes have a shape based on a circle.
【００２０】金属製の箱体としては、第１電極に接触せ
ず、かつ第１電極を覆い、包み込む形状であれば各種形
状のものが使用可能である。上述のように各電極が円形
を基本とした形状が好ましい点に鑑みると、一方向に開
口を有する円柱状のものが好ましい。上記実施形態で
は、板厚１ｍｍ、内径２９ｍｍ、深さ１２ｍｍの真鍮製
円柱箱体を用いている。As the metal box, various shapes can be used as long as they do not come into contact with the first electrode and cover and surround the first electrode. In view of the fact that each electrode preferably has a shape based on a circle as described above, a columnar shape having an opening in one direction is preferable. In the above embodiment, a cylindrical box made of brass having a plate thickness of 1 mm, an inner diameter of 29 mm, and a depth of 12 mm is used.
【００２１】箱体と第２電極とは電気的に接続されてお
り、例えばハンダを介して箱体の開口端と第２電極とを
当接、接合させることができる。箱体の材質は、真鍮の
他に銅、鉄、アルミでもよい。箱体の深さは、第１電極
との隔離を確実にし、かつ車内側への突出を抑えるため
に、５〜２０ｍｍの範囲が好ましい。The box and the second electrode are electrically connected. For example, the opening end of the box and the second electrode can be contacted and joined via solder. The material of the box may be copper, iron, or aluminum in addition to brass. The depth of the box is preferably in the range of 5 to 20 mm in order to ensure the separation from the first electrode and suppress the protrusion toward the inside of the vehicle.
【００２２】さらに、車内の水分が結露し、第１電極に
付着することを防ぎ、しかも第１電極と箱体との離隔を
確実にするために、箱体内部に樹脂を充填することは好
ましい。この場合、充填される樹脂の材料としては、エ
ポキシ系樹脂やフッ素樹脂等の誘電率が材料が好まし
い。Further, it is preferable to fill the inside of the box with a resin in order to prevent the moisture inside the vehicle from dewing and adhering to the first electrode, and to ensure the separation between the first electrode and the box. . In this case, as a material of the resin to be filled, a material having a dielectric constant such as an epoxy resin or a fluororesin is preferable.
【００２３】これらの電極を車外側から隠蔽するため
に、電極よりも車外側のガラス板面に暗色セラッミック
プリント層を設けることもできる。この場合、各補助電
極が２枚のガラス板間に設けられることから、補助電極
を車内側ガラス板の車外側面または中間膜に、暗色セラ
ミックプリント層を車外側ガラス板に、特に車外側ガラ
ス板の車内側面に設けることが好ましい。また、上記実
施形態では２枚のガラス板を例示しているが、３枚以上
のガラス板を用いることもできる。In order to hide these electrodes from the outside of the vehicle, a dark ceramic print layer may be provided on the glass plate surface outside the vehicle from the electrodes. In this case, since each auxiliary electrode is provided between the two glass plates, the auxiliary electrode is provided on the vehicle exterior surface or the intermediate film of the vehicle interior glass plate, and the dark ceramic printed layer is provided on the vehicle exterior glass plate, particularly, the vehicle exterior glass plate. Is preferably provided on the inner side surface of the vehicle. In the above embodiment, two glass plates are illustrated, but three or more glass plates can be used.
【００２４】各電極を設ける位置としては、窓ガラス全
面のうちの適宜の場所が選択できる。信号処理回路との
接続を考慮すると、窓ガラスの周縁部が好ましい。特に
窓ガラスをフロントガラスとして用いる場合には、運転
者の前方視界を確保する必要があることからも、窓ガラ
スの周縁部分に設けることが好ましく、運転者が目障り
と感じないように、特にルームミラーやサンバイザの近
傍、窓ガラスのコーナー近傍等が好ましい。As the position where each electrode is provided, an appropriate place on the entire surface of the window glass can be selected. Considering the connection with the signal processing circuit, the periphery of the window glass is preferable. In particular, when a window glass is used as a windshield, it is preferable that the window glass be provided at a peripheral portion of the window glass because it is necessary to secure a front view of the driver, so that the driver does not feel annoying. It is preferable to be near a mirror or a sun visor, near a corner of a window glass, or the like.
【００２５】[0025]
【実施例】図１、図２に示す実施形態の窓ガラスに付着
した雨滴量と静電容量との関係を測定した。図３に示す
ように、１０マイクロリットルの雨滴が窓ガラスの車外
側面に付着した場合、約０．３ｐＦの静電容量の増加を
検知できた。約０．３ｐＦの静電容量の増加が検知でき
れば、信号処理回路１１で信号変換することによって、
ワイパー自動制御回路に信号を送ることによって自動的
にワイパーを作動させることができる。EXAMPLE The relationship between the amount of raindrops attached to the window glass of the embodiment shown in FIGS. 1 and 2 and the capacitance was measured. As shown in FIG. 3, when 10 microliters of raindrops adhered to the outside surface of the window glass, an increase in capacitance of about 0.3 pF could be detected. If an increase in the capacitance of about 0.3 pF can be detected, the signal is converted by the signal processing circuit 11 so that
The wiper can be automatically activated by sending a signal to the automatic wiper control circuit.
【００２６】[0026]
【発明の効果】本発明によれば、２枚のガラス板間に、
車内側ガラス板に設けられた電極に対向するように補助
電極を設けるているので、微量の雨滴をも検知できるよ
うにし、光学式雨滴センサのように結露による誤作動を
低減し得る静電容量タイプの雨滴センサでの検知感度を
向上できる。According to the present invention, between two glass plates,
Since the auxiliary electrode is provided so as to face the electrode provided on the vehicle interior glass plate, it is possible to detect even a small amount of raindrops, and to reduce the malfunction due to condensation like an optical raindrop sensor The detection sensitivity of the type raindrop sensor can be improved.
【００２７】しかも、センサ自体をコンパクトにできる
ので、運転者に目障りでなく、前方視認性を妨げること
がないセンサ付き窓ガラスが得られる。Moreover, since the sensor itself can be made compact, a sensor-equipped window glass which does not obstruct the driver and does not hinder the forward visibility can be obtained.
【図１】本発明の車両用センサ付き窓ガラスの一例を示
す要部概略断面図。FIG. 1 is a schematic cross-sectional view of an essential part showing an example of a window glass with a sensor for a vehicle according to the present invention.
【図２】本発明における電極の設置状態の一例を説明す
る窓ガラスの正面図。FIG. 2 is a front view of a window glass for explaining an example of an installation state of electrodes according to the present invention.
【図３】本発明のセンサ付き窓ガラスが検知する雨滴の
量と静電容量との関係の一例を示すグラフ。FIG. 3 is a graph showing an example of the relationship between the amount of raindrops detected by the sensor-equipped window glass and the capacitance.
１、１’：ガラス板 ２：第１電極 ３：第２電極 ４：箱体 ５：第１補助電極 ６：第２補助電極 ７：第１リード線 ８：第２リード線 ９：中間膜 １０：窓ガラス １１：信号処理回路 １２：ワイパー自動制御回路 １３：ワイパーモーター ２０：雨滴 1, 1 ': glass plate 2: first electrode 3: second electrode 4: box 5: first auxiliary electrode 6: second auxiliary electrode 7: first lead wire 8: second lead wire 9: intermediate film 10 : Window glass 11: Signal processing circuit 12: Wiper automatic control circuit 13: Wiper motor 20: Raindrop
Claims (2)
れた合わせガラスと、前記複数枚のガラス板のうちの最
も車内側のガラス板の車内側面に設けられた所定形状の
第１電極と、第１電極が設けられた面と同じ面に第１電
極から所定間隔を隔てて設けられた第１電極を囲い込む
形状をした第２電極と、一方向に開口を有しており、開
口端が第２電極に当接して第１電極を覆い囲むように前
記最も車内側のガラス板の車内側に設けられた金属製箱
体と、第１電極および第２電極のそれぞれと電気的に接
続された信号処理手段と、前記複数のガラス板の間に第
１電極に対向するように設けられた所定形状の第１補助
電極と、前記複数のガラス板の間に第１補助電極から所
定間隔を隔てて設けられた第１補助電極を囲い込む形状
をした第２補助電極と、を少なくとも備えた車両用セン
サ付き窓ガラス。1. A laminated glass in which a plurality of glass plates are bonded via an intermediate film, and a first glass having a predetermined shape provided on an inner side surface of an innermost glass plate of the plurality of glass plates. An electrode, a second electrode surrounding the first electrode provided at a predetermined distance from the first electrode on the same surface as the surface on which the first electrode is provided, and an opening in one direction. A metal box provided on the inner side of the innermost glass plate so that an opening end contacts the second electrode and covers the first electrode; Signal processing means, a first auxiliary electrode of a predetermined shape provided between the plurality of glass plates so as to face the first electrode, and a predetermined interval from the first auxiliary electrode between the plurality of glass plates. A second auxiliary electrode having a shape surrounding the first auxiliary electrode provided at a distance When, at least provided with a sensor-equipped vehicle glazing.
間に形成される空隙に樹脂が充填されている請求項１に
記載の車両用センサ付き窓ガラス。2. A window glass with a sensor according to claim 1, wherein a resin is filled in a gap formed between the innermost glass plate and the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10243978A JP2000075052A (en) | 1998-08-28 | 1998-08-28 | Window glass with sensor for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10243978A JP2000075052A (en) | 1998-08-28 | 1998-08-28 | Window glass with sensor for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000075052A true JP2000075052A (en) | 2000-03-14 |
Family
ID=17111891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10243978A Pending JP2000075052A (en) | 1998-08-28 | 1998-08-28 | Window glass with sensor for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000075052A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007219596A (en) * | 2006-02-14 | 2007-08-30 | Toppan Printing Co Ltd | Film sensor and glass structure |
| JP2007533961A (en) * | 2003-09-19 | 2007-11-22 | 滕▲しん▼ ▲孫▼ | Apparatus and method for detecting environmental changes in automotive windshield glass |
| JP2007304689A (en) * | 2006-05-09 | 2007-11-22 | Toppan Printing Co Ltd | Film sensor and glass structure |
| WO2007140658A1 (en) * | 2006-06-08 | 2007-12-13 | Tengchen Sun | A plane capacitive sensor and a method for detecting environmental variation of vehicle windscreen |
| JP2007323121A (en) * | 2006-05-30 | 2007-12-13 | Toppan Printing Co Ltd | Sensor |
| JP2008046081A (en) * | 2006-08-21 | 2008-02-28 | Toppan Printing Co Ltd | Object detection system |
| KR100820399B1 (en) * | 2006-10-09 | 2008-04-08 | 현대자동차주식회사 | A rain sensor apparatus for a vehicle |
| JP2009501916A (en) * | 2005-07-19 | 2009-01-22 | プレー・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Capacitive raindrop sensor |
| CN111148667A (en) * | 2018-09-03 | 2020-05-12 | 法国圣戈班玻璃厂 | Window glass unit |
| CN111226444A (en) * | 2017-11-02 | 2020-06-02 | 株式会社电装 | Ultrasonic sensor |
| WO2020154069A1 (en) * | 2019-01-24 | 2020-07-30 | Semiconductor Components Industries, Llc | Capacitive sensor with ground electrode and coresponding rain detection method as well as rain detection system |
| CN111791833A (en) * | 2020-06-22 | 2020-10-20 | 北京汽车股份有限公司 | Control method and system for vehicle windscreen wiper and vehicle |
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-
1998
- 1998-08-28 JP JP10243978A patent/JP2000075052A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007533961A (en) * | 2003-09-19 | 2007-11-22 | 滕▲しん▼ ▲孫▼ | Apparatus and method for detecting environmental changes in automotive windshield glass |
| KR101122686B1 (en) | 2003-09-19 | 2012-03-09 | 제 위 | A device and method for detecting the environment change of windshield |
| JP2009501916A (en) * | 2005-07-19 | 2009-01-22 | プレー・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Capacitive raindrop sensor |
| JP2007219596A (en) * | 2006-02-14 | 2007-08-30 | Toppan Printing Co Ltd | Film sensor and glass structure |
| JP2007304689A (en) * | 2006-05-09 | 2007-11-22 | Toppan Printing Co Ltd | Film sensor and glass structure |
| JP2007323121A (en) * | 2006-05-30 | 2007-12-13 | Toppan Printing Co Ltd | Sensor |
| WO2007140658A1 (en) * | 2006-06-08 | 2007-12-13 | Tengchen Sun | A plane capacitive sensor and a method for detecting environmental variation of vehicle windscreen |
| JP2008046081A (en) * | 2006-08-21 | 2008-02-28 | Toppan Printing Co Ltd | Object detection system |
| KR100820399B1 (en) * | 2006-10-09 | 2008-04-08 | 현대자동차주식회사 | A rain sensor apparatus for a vehicle |
| CN111226444A (en) * | 2017-11-02 | 2020-06-02 | 株式会社电装 | Ultrasonic sensor |
| CN111226444B (en) * | 2017-11-02 | 2022-08-16 | 株式会社电装 | Ultrasonic sensor |
| US11635504B2 (en) | 2017-11-02 | 2023-04-25 | Denso Corporation | Ultrasonic sensor |
| CN111148667A (en) * | 2018-09-03 | 2020-05-12 | 法国圣戈班玻璃厂 | Window glass unit |
| WO2020154069A1 (en) * | 2019-01-24 | 2020-07-30 | Semiconductor Components Industries, Llc | Capacitive sensor with ground electrode and coresponding rain detection method as well as rain detection system |
| US10816497B2 (en) | 2019-01-24 | 2020-10-27 | Semiconductor Components Industries, Llc | Methods and apparatus for a capacitive sensor |
| US10836354B2 (en) | 2019-01-24 | 2020-11-17 | Semiconductor Components Industries, Llc | Methods and apparatus for a capacitive sensor |
| CN111791833A (en) * | 2020-06-22 | 2020-10-20 | 北京汽车股份有限公司 | Control method and system for vehicle windscreen wiper and vehicle |
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