JP2020147050A - Anti-fogging device for vehicle - Google Patents

Anti-fogging device for vehicle Download PDF

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JP2020147050A
JP2020147050A JP2019043286A JP2019043286A JP2020147050A JP 2020147050 A JP2020147050 A JP 2020147050A JP 2019043286 A JP2019043286 A JP 2019043286A JP 2019043286 A JP2019043286 A JP 2019043286A JP 2020147050 A JP2020147050 A JP 2020147050A
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transfer material
heat transfer
heating wire
vehicle
heat
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JP7111032B2 (en
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聖巳 永野
Masami Nagano
聖巳 永野
隆宏 安達
Takahiro Adachi
隆宏 安達
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

To provide an anti-fogging device for a vehicle which can effectively remove moisture adhered to a peripheral part of a heating wire and moisture adhered to vehicle outside surface of a glass-paned window by heat which a heating wire generates while being a structure providing the heating wire on cabin inside of the glass-paned window.SOLUTION: An anti-fogging device for a vehicle comprises a tubular heat transfer material 11, which is fixed to cabin side surface of a glass-paned widow 20 provided on the vehicle via an adhesive bond 13 of which thermal conductivity is higher than the glass-paned window and which includes light transmissivity, and of which thermal conductivity is higher than the glass-paned window and which includes the light transmissivity, and a heating means which is fixed to cabin side surface of the heat transfer material and is the heating wire 12 which generates heat when electric power is supplied.SELECTED DRAWING: Figure 2

Description

本発明は、車両に設けられたガラス窓（例えばフロントウィンドシールド）の車内側に設けられる車両用防曇装置に関する。 The present invention relates to a vehicle anti-fog device provided inside a glass window (for example, a front windshield) provided in a vehicle.

防曇装置が配設された特許文献１の車両のフロントウィンドシールドはガラス製である。このフロントウィンドシールドの車内側面には断熱材が固定されている。さらに断熱材の車内側面にはヒータ部が固定されている。このヒータ部は、例えば複数の線材によって構成される。これら複数の線材は互いに平行をなしており、且つ、隣接する線材どうしの間には隙間が形成されている。従って、断熱材の一部領域が線材と対向しない非対向部位となる。さらに断熱材及びヒータ部の車内側面がヒータ部保護膜によって覆われている。 The front windshield of the vehicle of Patent Document 1 in which the anti-fog device is provided is made of glass. A heat insulating material is fixed to the inner surface of the front windshield. Further, a heater portion is fixed to the inner side surface of the heat insulating material. This heater unit is composed of, for example, a plurality of wires. These plurality of wires are parallel to each other, and a gap is formed between the adjacent wires. Therefore, a part of the heat insulating material becomes a non-opposing portion that does not face the wire rod. Further, the heat insulating material and the inner side surface of the heater portion are covered with the heater portion protective film.

複数の線材に電源の電力が供給されると各線材が発熱する。すると各線材で発生した熱が断熱材を介してフロントウィンドシールドに供給され且つヒータ部保護膜に供給される。そのため、例えばヒータ部保護膜の車内側面に付着した水分及びフロントウィンドシールドの車外側面に付着した水分が、線材が発生する熱によって除去される。 When power is supplied to a plurality of wires, each wire generates heat. Then, the heat generated in each wire is supplied to the front windshield and the heater protective film via the heat insulating material. Therefore, for example, the moisture adhering to the inner surface of the vehicle of the heater portion protective film and the moisture adhering to the outer surface of the vehicle of the front windshield are removed by the heat generated by the wire rod.

特開２０１６−７８８３５号公報Japanese Unexamined Patent Publication No. 2016-78835

しかし断熱材の熱伝導率は低いため、断熱材の非対向部位には熱が伝わり難い。そのためフロントウィンドシールドの非対向部位と対向する部位には各線材で発生した熱が伝わり難い。従って、フロントウィンドシールドのこれらの部位の車外側面に付着した水分が除去されないおそれがある。 However, since the thermal conductivity of the heat insulating material is low, it is difficult for heat to be transferred to the non-opposing portion of the heat insulating material. Therefore, it is difficult for the heat generated by each wire to be transferred to the non-opposing portion and the opposing portion of the front windshield. Therefore, there is a risk that the moisture adhering to the vehicle outer surface of these parts of the front windshield will not be removed.

さらにヒータ部保護膜の非対向部位と対応する部位に各線材で発生した熱が伝わり難い。従って、ヒータ部保護膜の当該部位の車内側面に付着した水分が除去されないおそれがある。 Furthermore, it is difficult for the heat generated by each wire to be transferred to the non-opposing portion of the heater portion protective film and the corresponding portion. Therefore, there is a possibility that the moisture adhering to the inner side surface of the vehicle of the portion of the heater portion protective film may not be removed.

フロントウィンドシールドの車内側面に、フロントウィンドシールドの前方に位置する被写体を撮影するためのカメラを設けることがある。この場合はカメラの画角の範囲内に断熱材及びヒータ部保護膜を位置させる。そのため断熱材及びヒータ部保護膜を透光性材料によって構成した場合であっても、ヒータ部保護膜及びフロントウィンドシールドの非対向部位と対向する部位に水分が付着すると、カメラが生成した撮像データが不鮮明な被写体像を表すデータとなったり、カメラが被写体を撮像できなくなったりするおそれがある。 A camera for photographing a subject located in front of the front windshield may be provided on the inner surface of the front windshield. In this case, the heat insulating material and the protective film for the heater are positioned within the angle of view of the camera. Therefore, even when the heat insulating material and the heater portion protective film are made of a translucent material, if moisture adheres to the portion of the heater portion protective film and the front windshield that faces the non-opposing portion, the imaging data generated by the camera. May become data representing an unclear subject image, or the camera may not be able to capture the subject.

本発明は前記課題に対処するためになされた。即ち、本発明の目的の一つは、ガラス窓の車室内側に電熱線を設けた構造でありながら、電熱線の周辺部に付着した水分及びガラス窓の車外側面に付着した水分を電熱線が発生した熱によって効果的に除去できる車両用防曇装置を提供することにある。 The present invention has been made to address the above problems. That is, one of the objects of the present invention is to provide a heating wire on the vehicle interior side of the glass window, but to remove the moisture adhering to the peripheral portion of the heating wire and the moisture adhering to the vehicle outer surface of the glass window. It is an object of the present invention to provide a vehicle antifogging device that can be effectively removed by the heat generated by the glass.

前記目的を達成するための本発明による車両用防曇装置は、
車両に設けられたガラス窓（２０）の車内側面に、前記ガラス窓より熱伝導性が高く且つ透光性を有する接着剤（１３）を介して固定された、前記ガラス窓より熱伝導性が高く且つ透光性を有する板状の伝熱材（１１）と、
前記伝熱材の車内側面に固定された、電力を供給されたときに発熱する電熱線（１２、１２Ａ）である加熱手段と、
を備えた。 The vehicle anti-fog device according to the present invention for achieving the above object is
Thermal conductivity is higher than that of the glass window, which is fixed to the inner side surface of the glass window (20) provided in the vehicle via an adhesive (13) having higher thermal conductivity and translucency than the glass window. A plate-shaped heat transfer material (11) having high and translucent properties,
A heating means, which is a heating wire (12, 12A) fixed to the inner side surface of the heat transfer material and generates heat when electric power is supplied.
Equipped with.

本発明によれば、電熱線である加熱手段に電力が供給されると加熱手段が発熱する。するとこの熱がガラス窓より熱伝導性が高い板状の伝熱材に供給される。 According to the present invention, when electric power is supplied to the heating means which is a heating wire, the heating means generates heat. Then, this heat is supplied to the plate-shaped heat transfer material having higher thermal conductivity than the glass window.

加熱手段は、例えば複数の電熱線によって構成可能である。この場合、隣接する電熱線どうしの間には隙間が形成される。そのためこの場合は、伝熱材の一部領域が電熱線と対向しない非対向部位となる。 The heating means can be configured by, for example, a plurality of heating wires. In this case, a gap is formed between adjacent heating wires. Therefore, in this case, a part of the heat transfer material is a non-opposing portion that does not face the heating wire.

しかし伝熱材はガラス窓より熱伝導性が高い板状なので、加熱手段（複数の電熱線）が発生した熱は非対向部位を含む伝熱材全体に伝わる。従って、伝熱材の車内側面全体に熱が伝わる。そのため伝熱材の車内側面に付着した水分（例えば、結露）を電熱線が発生した熱によって効果的に除去できる。さらにこの熱は伝熱材全体から接着剤を介してガラス窓に伝わる。従って、ガラス窓の伝熱材と対向する部位全体の車外側面に付着した水分を電熱線が発生した熱によって効果的に除去できる。 However, since the heat transfer material has a plate shape with higher thermal conductivity than the glass window, the heat generated by the heating means (plurality of heating wires) is transferred to the entire heat transfer material including the non-opposing portion. Therefore, heat is transferred to the entire inner surface of the heat transfer material. Therefore, the moisture (for example, dew condensation) adhering to the inner surface of the heat transfer material can be effectively removed by the heat generated by the heating wire. Furthermore, this heat is transferred from the entire heat transfer material to the glass window via the adhesive. Therefore, the moisture adhering to the outer surface of the vehicle as a whole of the portion facing the heat transfer material of the glass window can be effectively removed by the heat generated by the heating wire.

上記説明においては、本発明の理解を助けるために、後述する実施形態に対応する発明の構成に対し、その実施形態で用いた符号を括弧書きで添えている。しかしながら、本発明の各構成要素は、前記符号によって規定される実施形態に限定されるものではない。 In the above description, in order to help the understanding of the present invention, the reference numerals used in the embodiments are added in parentheses to the configurations of the invention corresponding to the embodiments described later. However, each component of the present invention is not limited to the embodiment defined by the reference numerals.

本発明の実施形態に係る車両用防曇装置及びフロントウィンドシールドの一部を車内側から見た図である。It is a figure which looked at a part of the anti-fog device for a vehicle and the front windshield which concerns on embodiment of this invention from the inside of a vehicle. 図１のII−II矢線に沿う断面図である。It is sectional drawing which follows the II-II arrow line of FIG. 本発明の変形例の図１と同様の図である。It is the same figure as FIG. 1 of the modification of this invention.

以下、添付図面を参照しながら本発明の実施形態に係る車両用防曇装置について説明する。 Hereinafter, the anti-fog device for vehicles according to the embodiment of the present invention will be described with reference to the accompanying drawings.

図１及び図２に示すように、実施形態に係る車両用防曇装置１０（以下、「防曇装置１０」と称呼する。）は、車両のフロントウィンドシールド２０（以下、「フロントウィンド２０」と称呼する。）の車内側に設けられる。フロントウィンド２０は透明なガラスにより製造されている。図２に示すようにフロントウィンド２０は上方から下方に向かうにつれて徐々に車両の前方に向かう態様で車体に対して傾斜している。 As shown in FIGS. 1 and 2, the vehicle anti-fog device 10 (hereinafter, referred to as “anti-fog device 10”) according to the embodiment is a vehicle front windshield 20 (hereinafter, “front window 20”). It is installed inside the car. The front window 20 is made of transparent glass. As shown in FIG. 2, the front window 20 is inclined with respect to the vehicle body in a manner of gradually toward the front of the vehicle from the upper side to the lower side.

フロントウィンド２０の後面（即ち、車内側面）の上部に防曇装置１０が設けられている。防曇装置１０は、伝熱材１１、電熱線１２及び接着剤１３を備えている。 An anti-fog device 10 is provided above the rear surface (that is, the inner side surface of the vehicle) of the front window 20. The anti-fog device 10 includes a heat transfer material 11, a heating wire 12, and an adhesive 13.

図１に示すように正面形状が台形形状である伝熱材１１は透光性材料によって製造された板材であり且つフロントウィンド２０よりも熱伝導性が高い。例えば、透明なセラミックにより伝熱材１１を製造可能である。図２に示すように、フロントウィンド２０の後面の上部の直後に伝熱材１１がフロントウィンド２０と略平行をなすように位置している。 As shown in FIG. 1, the heat transfer material 11 having a trapezoidal front shape is a plate material manufactured of a translucent material and has higher thermal conductivity than the front window 20. For example, the heat transfer material 11 can be manufactured from a transparent ceramic. As shown in FIG. 2, the heat transfer material 11 is located immediately after the upper portion of the rear surface of the front window 20 so as to be substantially parallel to the front window 20.

伝熱材１１の後面には４本の金属製の電熱線１２が固定されている。電熱線１２は、例えば、銅線、銀線又はＳＵＳ製の線材により構成可能である。図１に示すように、各電熱線１２の延長方向は左右方向及び上下方向に対して傾斜している。さらに各電熱線１２の間には隙間が形成されている。即ち、図１から明らかなように、伝熱材１１の一部の領域のみが各電熱線１２と対向しており、伝熱材１１の残りの領域は各電熱線１２と対向しない非対向部位１１ａである。 Four metal heating wires 12 are fixed to the rear surface of the heat transfer material 11. The heating wire 12 can be composed of, for example, a copper wire, a silver wire, or a wire rod made of SUS. As shown in FIG. 1, the extension direction of each heating wire 12 is inclined with respect to the horizontal direction and the vertical direction. Further, a gap is formed between the heating wires 12. That is, as is clear from FIG. 1, only a part of the heat transfer material 11 faces each heating wire 12, and the remaining area of the heat transfer material 11 does not face each heating wire 12. 11a.

図２に示すように、伝熱材１１の前面は透明な接着剤１３を介してフロントウィンド２０の後面の上部に固定されている。接着剤１３の熱伝導性はフロントウィンド２０より高い。接着剤１３として、例えばシリコン系の粘着剤が用いられる。 As shown in FIG. 2, the front surface of the heat transfer material 11 is fixed to the upper part of the rear surface of the front window 20 via a transparent adhesive 13. The thermal conductivity of the adhesive 13 is higher than that of the front window 20. As the adhesive 13, for example, a silicon-based adhesive is used.

伝熱材１１の外周面の２箇所には、電極１４と電極１５とがそれぞれ固定されている。図１に示すように、電極１４には各電熱線１２の右側の端部が接続されており、且つ、電極１５には各電熱線１２の左側の端部が接続されている。さらに図１に示すように電極１４及び電極１５は、車載のバッテリ１６及びスイッチ片１７を有する電気回路１８に接続されている。 The electrodes 14 and 15 are fixed to the two locations on the outer peripheral surface of the heat transfer material 11, respectively. As shown in FIG. 1, the right end of each heating wire 12 is connected to the electrode 14, and the left end of each heating wire 12 is connected to the electrode 15. Further, as shown in FIG. 1, the electrodes 14 and 15 are connected to an electric circuit 18 having an in-vehicle battery 16 and a switch piece 17.

車内に設けられたヒータ用スイッチ（図示略）がＯＦＦ位置に位置するとき、スイッチ片１７は図１に実線で示すＯＦＦ位置に位置する。このときバッテリ１６の電力は電極１４、電極１５及び電気回路１８を介して各電熱線１２に供給されない。一方、車両の乗員がヒータ用スイッチをＯＮ位置に移動させると、スイッチ片１７は図１に仮想線で示すＯＮ位置に移動する。するとバッテリ１６の電力が電極１４、電極１５及び電気回路１８を介して各電熱線１２に供給されるので各電熱線１２が発熱する。 When the heater switch (not shown) provided in the vehicle is located at the OFF position, the switch piece 17 is located at the OFF position shown by the solid line in FIG. At this time, the electric power of the battery 16 is not supplied to each heating wire 12 via the electrode 14, the electrode 15, and the electric circuit 18. On the other hand, when the occupant of the vehicle moves the heater switch to the ON position, the switch piece 17 moves to the ON position shown by the virtual line in FIG. Then, the electric power of the battery 16 is supplied to each heating wire 12 via the electrode 14, the electrode 15, and the electric circuit 18, so that each heating wire 12 generates heat.

すると各電熱線１２で発生した熱が伝熱材１１に供給される。上述のように、伝熱材１１は各電熱線１２と対向しない非対向部位１１ａを有する。しかし伝熱材１１の熱伝導性が高い（フロントウィンド２０より熱伝導性が高い）ので、各電熱線１２から伝熱材１１に伝わった熱は、非対向部位１１ａを含む伝熱材１１全体に広がる。そのため伝熱材１１の後面に付着した水分（例えば、結露）がこの熱によって効果的に除去される。 Then, the heat generated by each heating wire 12 is supplied to the heat transfer material 11. As described above, the heat transfer material 11 has a non-opposing portion 11a that does not face each heating wire 12. However, since the heat transfer material 11 has high thermal conductivity (higher thermal conductivity than the front window 20), the heat transferred from each heating wire 12 to the heat transfer material 11 is the entire heat transfer material 11 including the non-opposing portion 11a. Spread to. Therefore, the moisture (for example, dew condensation) adhering to the rear surface of the heat transfer material 11 is effectively removed by this heat.

さらに伝熱材１１全体に伝わった熱は、伝熱材１１全体から熱伝導性が高い（フロントウィンド２０より熱伝導性が高い）接着剤１３を介してフロントウィンド２０に伝わる。従って、例えばフロントウィンド２０の伝熱材１１と対向する部位全体に熱が伝わる。即ち、フロントウィンド２０の非対向部位１１ａと対向する部位にも熱が伝わる。従ってフロントウィンド２０に付着した水分を電熱線１２が発生した熱によって効果的に除去できる。 Further, the heat transferred to the entire heat transfer material 11 is transferred from the entire heat transfer material 11 to the front window 20 via the adhesive 13 having high thermal conductivity (higher thermal conductivity than the front window 20). Therefore, for example, heat is transferred to the entire portion of the front window 20 facing the heat transfer material 11. That is, heat is also transferred to the portion of the front window 20 facing the non-opposing portion 11a. Therefore, the moisture adhering to the front window 20 can be effectively removed by the heat generated by the heating wire 12.

図２に示すように、フロントウィンド２０の後面の上部には、図示を省略したブラケットを介してカメラ３０が固定されている。カメラ３０は、レンズ（図示略）及びレンズの直後に位置する撮像素子（図示略）を有する。撮像素子は、カメラ３０の前方に位置する被写体によって後方へ反射され且つレンズを透過した反射光（撮影光）を受光（撮像）して撮像データを生成する。例えば、車両の前方に位置する被写体（例えば、車両又は歩行者）によって反射され且つフロントウィンド２０、接着剤１３、伝熱材１１及びレンズを透過した反射光を撮像素子が受光して撮像データを生成する。 As shown in FIG. 2, the camera 30 is fixed to the upper part of the rear surface of the front window 20 via a bracket (not shown). The camera 30 has a lens (not shown) and an image sensor (not shown) located immediately after the lens. The image sensor generates imaging data by receiving (imaging) the reflected light (photographing light) that is reflected backward by the subject located in front of the camera 30 and transmitted through the lens. For example, the image pickup element receives the reflected light reflected by a subject (for example, a vehicle or a pedestrian) located in front of the vehicle and transmitted through the front window 20, the adhesive 13, the heat transfer material 11, and the lens, and obtains the image pickup data. Generate.

図２に示すように、カメラ３０のレンズの画角αの範囲内に伝熱材１１、電熱線１２、接着剤１３及びフロントウィンド２０の接着剤１３と対向する部位が位置する。上述のように、本実施形態では伝熱材１１の後面（車室側面）及びフロントウィンド２０の「非対向部位１１ａを含む伝熱材１１」と対向する部位の前面に付着した水分が効果的に除去されるので、カメラ３０が生成した撮像データが不鮮明な被写体像を表すデータとなったり、カメラ３０が被写体を撮像できなくなったりするおそれは殆どない。 As shown in FIG. 2, a portion of the heat transfer material 11, the heating wire 12, the adhesive 13, and the front window 20 facing the adhesive 13 is located within the range of the angle of view α of the lens of the camera 30. As described above, in the present embodiment, the moisture adhering to the rear surface (side surface of the vehicle interior) of the heat transfer material 11 and the front surface of the portion of the front window 20 facing the "heat transfer material 11 including the non-opposite portion 11a" is effective. Therefore, there is almost no possibility that the imaging data generated by the camera 30 becomes data representing an unclear subject image, or the camera 30 cannot capture the subject.

以上、本発明を実施形態及び変形例に基づいて説明したが、本発明は上記実施形態及び変形例に限定されるものではなく、本発明の目的を逸脱しない限りにおいて種々の変更が可能である。 Although the present invention has been described above based on the embodiments and modifications, the present invention is not limited to the above embodiments and modifications, and various modifications can be made without departing from the object of the present invention. ..

例えば図３に示す変形例の態様で本発明を実施してもよい。この変形例の電熱線１２Ａは一本の金属線材を図示形状に加工することにより製造される。電熱線１２Ａは、例えば、銅線、銀線又はＳＵＳ製の線材により構成可能である。電熱線１２Ａは伝熱材１１の後面に固定されている。 For example, the present invention may be carried out in the embodiment of the modification shown in FIG. The heating wire 12A of this modified example is manufactured by processing one metal wire rod into the illustrated shape. The heating wire 12A can be composed of, for example, a copper wire, a silver wire, or a wire rod made of SUS. The heating wire 12A is fixed to the rear surface of the heat transfer material 11.

電熱線１２Ａは、それぞれの延長方向が左右方向及び上下方向に対して傾斜し且つ互いに平行をなす５つの平行部１２Ａ１、１２Ａ２、１２Ａ３、１２Ａ４、１２Ａ５を有する。さらに電熱線１２Ａは、各平行部１２Ａ１、１２Ａ２、１２Ａ３、１２Ａ４、１２Ａ５同士を接続する４つの接続部１２Ａ６、１２Ａ７、１２Ａ８、１２Ａ９を有する。さらに伝熱材１１の一部の領域のみが電熱線１２Ａと対向しており、伝熱材１１の残りの領域は電熱線１２Ａと対向しない非対向部位１１ａである。 The heating wire 12A has five parallel portions 12A1, 12A2, 12A3, 12A4, 12A5 whose extension directions are inclined in the horizontal direction and the vertical direction and are parallel to each other. Further, the heating wire 12A has four connecting portions 12A6, 12A7, 12A8, 12A9 for connecting the parallel portions 12A1, 12A2, 12A3, 12A4, 12A5 to each other. Further, only a part of the heat transfer material 11 faces the heating wire 12A, and the remaining area of the heat transfer material 11 is a non-opposing portion 11a that does not face the heating wire 12A.

伝熱材１１の外周面の２箇所には電極１４Ａと電極１５Ａがそれぞれ固定されている。電極１４Ａには平行部１２Ａ１の端部が接続されており、且つ、電極１５Ａには平行部１２Ａ５の端部が接続されている。 Electrodes 14A and electrodes 15A are fixed at two locations on the outer peripheral surface of the heat transfer material 11, respectively. The end of the parallel portion 12A1 is connected to the electrode 14A, and the end of the parallel portion 12A5 is connected to the electrode 15A.

スイッチ片１７が図３に実線で示すＯＦＦ位置に位置するときバッテリ１６の電力は電極１４Ａ、電極１５Ａ及び電気回路１８を介して電熱線１２Ａに供給されない。一方、スイッチ片１７が図３に仮想線で示すＯＮ位置に移動すると、バッテリ１６の電力が電極１４Ａ、電極１５Ａ及び電気回路１８を介して電熱線１２Ａに供給されるので電熱線１２Ａが発熱する。 When the switch piece 17 is located at the OFF position shown by the solid line in FIG. 3, the electric power of the battery 16 is not supplied to the heating wire 12A via the electrode 14A, the electrode 15A, and the electric circuit 18. On the other hand, when the switch piece 17 moves to the ON position shown by the virtual line in FIG. 3, the power of the battery 16 is supplied to the heating wire 12A via the electrode 14A, the electrode 15A, and the electric circuit 18, so that the heating wire 12A generates heat. ..

すると電熱線１２Ａで発生した熱が伝熱材１１に供給される。上述のように、伝熱材１１は電熱線１２Ａと対向しない非対向部位１１ａを有する。しかし伝熱材１１の熱伝導性が高い（フロントウィンド２０より熱伝導性が高い）ので、電熱線１２Ａから伝熱材１１に伝わった熱は、非対向部位１１ａを含む伝熱材１１全体に広がる。そのため伝熱材１１の後面に付着した水分（例えば、結露）がこの熱によって効果的に除去される。 Then, the heat generated by the heating wire 12A is supplied to the heat transfer material 11. As described above, the heat transfer material 11 has a non-opposing portion 11a that does not face the heating wire 12A. However, since the heat transfer material 11 has high thermal conductivity (higher thermal conductivity than the front window 20), the heat transferred from the heating wire 12A to the heat transfer material 11 is applied to the entire heat transfer material 11 including the non-opposing portion 11a. spread. Therefore, the moisture (for example, dew condensation) adhering to the rear surface of the heat transfer material 11 is effectively removed by this heat.

さらに伝熱材１１全体に伝わった熱は、伝熱材１１全体から熱伝導性が高い（フロントウィンド２０より熱伝導性が高い）接着剤１３を介してフロントウィンド２０に伝わる。従って、例えばフロントウィンド２０の伝熱材１１と対向する部位全体に熱が伝わる。従ってフロントウィンド２０に付着した水分を電熱線１２Ａが発生した熱によって効果的に除去できる。 Further, the heat transferred to the entire heat transfer material 11 is transferred from the entire heat transfer material 11 to the front window 20 via the adhesive 13 having high thermal conductivity (higher thermal conductivity than the front window 20). Therefore, for example, heat is transferred to the entire portion of the front window 20 facing the heat transfer material 11. Therefore, the moisture adhering to the front window 20 can be effectively removed by the heat generated by the heating wire 12A.

車両のフロントウィンド２０とは別のガラス窓（例えば、バックドアに設けられたガラス窓）に本発明を適用してもよい。 The present invention may be applied to a glass window (for example, a glass window provided on the back door) different from the front window 20 of the vehicle.

１０…防曇装置、１１…伝熱材、１１ａ…非対向部位、１２…電熱線、１２Ａ…電熱線、１２Ａ１、１２Ａ２、１２Ａ３、１２Ａ４、１２Ａ５…平行部、１２Ａ６、１２Ａ７、１２Ａ８、１２Ａ９…接続部、１３…接着剤、１４…電極、１５…電極、１４Ａ…電極、１５Ａ…電極、１６…バッテリ、１７…スイッチ片、１８…電気回路、２０…フロントウィンド、３０…カメラ、α・・・画角、。 10 ... Anti-fog device, 11 ... Heat transfer material, 11a ... Non-opposing part, 12 ... Heating wire, 12A ... Heating wire, 12A1, 12A2, 12A3, 12A4, 12A5 ... Parallel part, 12A6, 12A7, 12A8, 12A9 ... Connection Part, 13 ... Adhesive, 14 ... Electrode, 15 ... Electrode, 14A ... Electrode, 15A ... Electrode, 16 ... Battery, 17 ... Switch piece, 18 ... Electric circuit, 20 ... Front window, 30 ... Camera, α ... Angle of view ,.

Claims (1)

車両に設けられたガラス窓の車内側面に、前記ガラス窓より熱伝導性が高く且つ透光性を有する接着剤を介して固定された、前記ガラス窓より熱伝導性が高く且つ透光性を有する板状の伝熱材と、
前記伝熱材の車内側面に固定された、電力を供給されたときに発熱する電熱線である加熱手段と、
を備えた、
車両用防曇装置。 It has higher thermal conductivity and translucency than the glass window, which is fixed to the inner side surface of the glass window provided in the vehicle via an adhesive having higher thermal conductivity and translucency than the glass window. With a plate-shaped heat transfer material
A heating means, which is a heating wire fixed to the inner side surface of the heat transfer material and generates heat when electric power is supplied.
With,
Anti-fog device for vehicles.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114619852A (en) * 2020-12-10 2022-06-14 丰田自动车株式会社 Anti-fog device

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Publication number Priority date Publication date Assignee Title
JPH07263201A (en) * 1994-03-24 1995-10-13 Toppan Printing Co Ltd Dew condensation preventive panel
JP2009522158A (en) * 2005-12-28 2009-06-11 エクスアテック、エル．エル．シー． Window defroster assembly with transparent conductive layer
JP2017091888A (en) * 2015-11-12 2017-05-25 イビデン株式会社 Planar heating element and method of manufacturing planar heating element
JP2018142542A (en) * 2018-04-03 2018-09-13 トヨタ自動車株式会社 Heating apparatus

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH07263201A (en) * 1994-03-24 1995-10-13 Toppan Printing Co Ltd Dew condensation preventive panel
JP2009522158A (en) * 2005-12-28 2009-06-11 エクスアテック、エル．エル．シー． Window defroster assembly with transparent conductive layer
JP2017091888A (en) * 2015-11-12 2017-05-25 イビデン株式会社 Planar heating element and method of manufacturing planar heating element
JP2018142542A (en) * 2018-04-03 2018-09-13 トヨタ自動車株式会社 Heating apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114619852A (en) * 2020-12-10 2022-06-14 丰田自动车株式会社 Anti-fog device
CN114619852B (en) * 2020-12-10 2024-01-05 丰田自动车株式会社 Anti-fog device
JP7428119B2 (en) 2020-12-10 2024-02-06 トヨタ自動車株式会社 Anti-fog device

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