JP2015110393A - Vehicle roof structure - Google Patents

Vehicle roof structure Download PDF

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JP2015110393A
JP2015110393A JP2013253460A JP2013253460A JP2015110393A JP 2015110393 A JP2015110393 A JP 2015110393A JP 2013253460 A JP2013253460 A JP 2013253460A JP 2013253460 A JP2013253460 A JP 2013253460A JP 2015110393 A JP2015110393 A JP 2015110393A
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vehicle
roof panel
roof
vortex
headlining
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JP6350791B2 (en
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伊藤　篤
Atsushi Ito
篤 伊藤
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Mitsubishi Motors Corp
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Abstract

PROBLEM TO BE SOLVED: To suppress generation of three-dimensional vortex in an air layer between a roof panel and a head lining.SOLUTION: A fin member 10 restricts three-dimensional vortex that is generated in an air layer between a roof panel 2 and a head lining 3 to two-dimensional vortex, thereby suppressing generation of the three-dimensional vortex in the air layer between the roof panel 2 and the head lining 3, increasing a heat flow velocity, and suppressing heat transfer.

Description

本発明は、車両のルーフ部構造に関する。   The present invention relates to a roof structure of a vehicle.

車両のルーフ部は、主に、ルーフ面を形成するルーフパネルと、車室の天井となるヘッドライニングとで構成されている。ルーフパネルとヘッドライニングの隙間には空気層が存在し、空気層により、外部からの車室内への熱の遮断や、音の遮断、車室内の騒音の吸収等が行われている。そして、車室の断熱、遮音等の効果を高めるため、ルーフパネルとヘッドライニングの隙間に、断熱・遮音用のパッド材が配されている車両がある。   The roof part of a vehicle is mainly composed of a roof panel that forms a roof surface and a headlining that serves as a ceiling of a passenger compartment. An air layer exists in the gap between the roof panel and the head lining, and the air layer blocks heat from the outside to the vehicle interior, blocks sound, absorbs noise in the vehicle interior, and the like. In order to enhance the effects of heat insulation and sound insulation of the passenger compartment, there is a vehicle in which a pad material for heat insulation and sound insulation is arranged in the gap between the roof panel and the head lining.

車室内への断熱効果を高めるため、ルーフパネルの上面に放熱用の突起を設けた技術が知られている（例えば、特許文献１参照）。放熱用の突起を設けることで、ルーフパネルの温度上昇を抑制することができ、車室内の断熱・遮音効果をより高くすることができる。   In order to enhance the heat insulation effect into the vehicle interior, a technique is known in which a heat dissipation projection is provided on the upper surface of the roof panel (see, for example, Patent Document 1). By providing the projection for heat dissipation, the temperature rise of the roof panel can be suppressed, and the heat insulation / sound insulation effect in the passenger compartment can be further enhanced.

車両のルーフ部は、ルーフパネルとヘッドライニングの隙間に空気層が存在している。このため、車体の外表面温度と車室内の温度の差により、空気層に自然対流が発生して対流による熱伝達が行われる。ルーフパネルとヘッドライニングの温度分布が均一であれば、空気層で発生する自然対流は２次元渦となって熱流速が大きくなり、熱伝達が抑制されて断熱・遮音効果を保つことができる。   The roof portion of the vehicle has an air layer in the gap between the roof panel and the headlining. For this reason, natural convection is generated in the air layer due to the difference between the outer surface temperature of the vehicle body and the temperature in the passenger compartment, and heat transfer by convection is performed. If the temperature distribution between the roof panel and the headlining is uniform, the natural convection generated in the air layer becomes a two-dimensional vortex and the heat flow rate is increased, so that heat transfer is suppressed and the heat insulation / sound insulation effect can be maintained.

しかし、実際には、ルーフパネルとヘッドライニングの温度分布が均一になることはなく、また、断熱・遮音用のパッド材が配されている場合には、パッド材の部位とその周囲とでは温度差が大きくなる。温度分布に偏りが生じると、自然対流が３次元渦となり、渦が滞留して熱流速が小さくなり、熱伝達が促進されてしまう虞があった。   However, in reality, the temperature distribution between the roof panel and the headlining will not be uniform, and if padding for heat insulation / sound insulation is provided, the temperature at the pad material part and its surroundings The difference increases. If the temperature distribution is biased, the natural convection becomes a three-dimensional vortex, the vortex stays, the heat flow rate decreases, and heat transfer may be promoted.

熱伝達が促進されると、エアコン等で調整される車室内の温度が車室外の温度により影響を受けやすくなり、断熱の効果が得られにくく、温度調整の効率が低下する虞があるのが現状であった。   If heat transfer is promoted, the temperature inside the passenger compartment, which is adjusted by an air conditioner or the like, is more likely to be affected by the temperature outside the passenger compartment, and it is difficult to obtain a heat insulation effect, which may reduce the efficiency of temperature adjustment. It was the current situation.

特開２００９−６７３７０号公報JP 2009-67370 A

本発明は上記状況に鑑みてなされたもので、ルーフパネルとヘッドライニングの間の空気層で３次元渦の発生を抑制した車両のルーフ部構造を提供することを目的とする。   The present invention has been made in view of the above situation, and an object of the present invention is to provide a vehicle roof portion structure in which generation of a three-dimensional vortex is suppressed in an air layer between a roof panel and a headlining.

上記目的を達成するための請求項１に係る本発明の車両のルーフ部構造は、車両のルーフ面を形成するルーフパネルと、前記ルーフパネルの下面側に隙間を空けて配され車室の天井となるヘッドライニングと、前記ルーフパネル、及び、前記ヘッドライニングの隙間に配され、前記隙間の空気層に発生する３次元渦を２次元渦に規制するフィン部材とを備えたことを特徴とする。   In order to achieve the above object, a roof structure of a vehicle according to a first aspect of the present invention includes a roof panel that forms a roof surface of the vehicle, and a ceiling of a vehicle compartment that is arranged with a gap on the lower surface side of the roof panel. And a fin member disposed in a gap between the head lining and a three-dimensional vortex generated in an air layer in the gap to regulate the two-dimensional vortex. .

請求項１に係る本発明では、空気層に発生する３次元渦をフィン部材により２次元渦に規制することができる。この結果、ルーフパネルとヘッドライニングの間の空気層で３次元渦の発生を抑制することが可能になり、熱流速を大きくして熱伝達を抑制することができる。   In the present invention according to claim 1, the three-dimensional vortex generated in the air layer can be restricted to the two-dimensional vortex by the fin member. As a result, it is possible to suppress the generation of a three-dimensional vortex in the air layer between the roof panel and the headlining, and it is possible to suppress heat transfer by increasing the heat flow rate.

そして、請求項２に係る本発明の車両のルーフ部構造は、請求項１に記載の車両のルーフ部構造において、前記ルーフパネル及び前記ヘッドライニング、または、前記ルーフパネルもしくは前記ヘッドライニングには、温度変化部が配され、前記フィン部材は、前記温度変化部の周囲に備えられていることを特徴とする。   And the roof part structure of the vehicle of the present invention according to claim 2 is the roof part structure of the vehicle according to claim 1, wherein the roof panel and the head lining, or the roof panel or the head lining, A temperature changing portion is disposed, and the fin member is provided around the temperature changing portion.

請求項２に係る本発明では、ルーフパネル及びヘッドライニング、ルーフパネルもしくはヘッドライニングに設けられた、温度変化部の周囲にフィン部材を備えたので、温度差が大きくなる温度変化部の周囲の空気層で３次元渦の発生を抑制することが可能になる。   In the present invention according to claim 2, since the fin member is provided around the temperature change portion provided in the roof panel and the headlining, the roof panel or the headlining, the air around the temperature change portion where the temperature difference increases. It becomes possible to suppress the generation of a three-dimensional vortex in the layer.

また、請求項３に係る本発明の車両のルーフ部構造は、請求項２に記載の車両のルーフ部構造において、前記温度変化部は、前記ルーフパネル、及び、前記ヘッドライニングの間に配されるパッド材であることを特徴とする。   According to a third aspect of the present invention, there is provided a vehicle roof portion structure according to the second aspect, wherein the temperature changing portion is disposed between the roof panel and the headlining. It is characterized by being a pad material.

請求項３に係る本発明では、パッド材（断熱、遮音を行う）の周囲にフィン部材を備えたので、温度差が大きくなるパッド材の周囲の空気層で３次元渦の発生を抑制することが可能になる。尚、温度変化部としては、パッド材の他に、サンルーフが適用される。   In the present invention according to claim 3, since the fin member is provided around the pad material (insulating and insulating), the generation of three-dimensional vortices is suppressed in the air layer around the pad material where the temperature difference increases. Is possible. In addition to the pad material, a sunroof is applied as the temperature changing portion.

また、請求項４に係る本発明の車両のルーフ部構造は、請求項３に記載の車両のルーフ部構造において、前記パッド材は、車両前部の中央部に配され、前記フィン部材は、車両の前後方向に延びて、前記車両の幅方向に複数配されていることを特徴とする。   According to a fourth aspect of the present invention, there is provided the vehicle roof portion structure according to the third aspect, wherein the pad material is arranged at a central portion of the vehicle front portion, and the fin member is It extends in the front-rear direction of the vehicle, and a plurality of them are arranged in the width direction of the vehicle.

請求項４に係る本発明では、フィン部材は、車両の前後方向に延びて、車両の幅方向に複数配されているので、空気層の渦を車両の前後方向の２次元渦に規制することができる。この場合、車両前後方向でパッド材の中央部から後にフィン部材を備えることが好ましい。また、例えば、車幅方向に１００ｍｍ程度のピッチでフィン部材を備えることで、渦を確実に２次元渦に規制することができる。因みに、車幅方向のピッチが広すぎると、フィン部材の間で３次元渦が発生する虞がある。   In the present invention according to claim 4, since the fin members extend in the front-rear direction of the vehicle and are arranged in the width direction of the vehicle, the air layer vortex is restricted to a two-dimensional vortex in the front-rear direction of the vehicle. Can do. In this case, it is preferable that a fin member is provided later from the center of the pad material in the vehicle longitudinal direction. Further, for example, by providing the fin members at a pitch of about 100 mm in the vehicle width direction, the vortex can be reliably restricted to a two-dimensional vortex. Incidentally, if the pitch in the vehicle width direction is too wide, a three-dimensional vortex may be generated between the fin members.

フィン部材は車幅方向に延びて車両の前後方向に複数配することも可能である。   A plurality of fin members may be arranged in the vehicle front-rear direction by extending in the vehicle width direction.

本発明の車両のルーフ部構造は、ルーフパネルとヘッドライニングの間の空気層で３次元渦の発生を抑制することが可能になる。   The roof structure of a vehicle according to the present invention can suppress the generation of a three-dimensional vortex in the air layer between the roof panel and the headlining.

本発明の一実施例に係るルーフ部構造を備えた車両の分解外観図である。1 is an exploded external view of a vehicle provided with a roof structure according to an embodiment of the present invention. ルーフパネルとヘッドライニングの間の概念を説明する側面図である。It is a side view explaining the concept between a roof panel and a headlining. ルーフパネルとヘッドライニングの間の概念を説明する後面図である。It is a rear view explaining the concept between a roof panel and a headlining. 車室からヘッドライニングを見た状態の概念図である。It is a conceptual diagram of the state which looked at headlining from the vehicle interior. フィン部材を備えていない場合のルーフパネルとヘッドライニングの間の概念を説明する側面図である。It is a side view explaining the concept between the roof panel and headlining when it is not provided with a fin member. フィン部材を備えていない場合のルーフパネルとヘッドライニングの間の概念を説明する後面図である。It is a rear view explaining the concept between the roof panel and head lining in case the fin member is not provided. フィン部材を備えていない場合の車室からヘッドライニングを見た状態の概念図である。It is a conceptual diagram of the state which looked at the headlining from the passenger compartment when the fin member is not provided.

図１には本発明の一実施例に係るルーフ部構造を備えた車両のルーフ部位を分解した状態の外観、図２にはルーフパネルとヘッドライニングの間の渦の対流概念を説明するための車両の側面側からの状況、図３にはルーフパネルとヘッドライニングの間の渦の対流概念を説明するための車両の後面側からの状況、図４には車室からヘッドライニングを見た状態の熱流速の状況、即ち、車室側から奪われる冷気（熱）の状況を説明するための概念を示してある。   FIG. 1 is an external view of a vehicle with a roof portion structure according to an embodiment of the present invention in an exploded state, and FIG. 2 is a diagram for explaining the vortex convection concept between a roof panel and a headlining. 3 shows the situation from the side of the vehicle, FIG. 3 shows the situation from the rear side of the vehicle for explaining the concept of vortex convection between the roof panel and the head lining, and FIG. 4 shows the situation where the head lining is seen from the passenger compartment. The concept for explaining the state of the heat flow rate, that is, the state of cold air (heat) taken from the passenger compartment side is shown.

また、図５から図７にはフィン部材を備えていない場合の状況を示してあり、図５は車両の側面側からの状況、図６は車両の後面側からの状況、図７は車室からヘッドライニングを見た状態の熱流速の状況であり、それぞれ、図２から図４に相当する。   FIGS. 5 to 7 show the situation when the fin member is not provided, FIG. 5 is the situation from the side of the vehicle, FIG. 6 is the situation from the rear of the vehicle, and FIG. FIG. 2 shows a state of the heat flow rate when the head lining is viewed, and corresponds to FIGS.

図１に基づいて本発明の一実施例に係るルーフ部構造を説明する。   A roof structure according to an embodiment of the present invention will be described with reference to FIG.

車両１は、ルーフ面を形成するルーフパネル２を備えている。ルーフパネル２の下面側（車室内側）には、車室の天井となるヘッドライニング３が設けられている。ルーフパネル２とヘッドライニング３の間には空気層が存在している。前席の中央部位のヘッドライニング３の上面（ルーフパネル２との間）には、断熱、遮音を行う温度変化部としてパッド材５が設けられている。   The vehicle 1 includes a roof panel 2 that forms a roof surface. A headlining 3 serving as a ceiling of the vehicle compartment is provided on the lower surface side (vehicle compartment side) of the roof panel 2. An air layer exists between the roof panel 2 and the headlining 3. A pad material 5 is provided on the upper surface of the head lining 3 (between the roof panel 2) at the central portion of the front seat as a temperature changing portion that performs heat insulation and sound insulation.

そして、ヘッドライニング３の上面には、車両１の前後方向に延びるフィン部材１０が車幅方向に複数設けられている。詳細は後述するが、フィン部材１０により、ルーフパネル２とヘッドライニング３の間の隙間の空気層に発生する３次元渦が、フィン部材１０の長手方向の２次元渦に規制される。   A plurality of fin members 10 extending in the front-rear direction of the vehicle 1 are provided on the upper surface of the headlining 3 in the vehicle width direction. Although the details will be described later, the three-dimensional vortex generated in the air layer in the gap between the roof panel 2 and the headlining 3 is restricted by the two-dimensional vortex in the longitudinal direction of the fin member 10 by the fin member 10.

このため、ルーフパネル２とヘッドライニング３の間の空気層で３次元渦の発生を抑制することが可能になり、空気層の熱流速を大きくして車室と外部との熱伝達を抑制することができる。   For this reason, it becomes possible to suppress generation | occurrence | production of a three-dimensional vortex in the air layer between the roof panel 2 and the headlining 3, and the heat flow rate of the air layer is increased to suppress heat transfer between the passenger compartment and the outside. be able to.

尚、フィン部材１０をヘッドライニング３の上面に設けた例を挙げて説明したが、ルーフパネル２からの熱を逃がす面積を大きくする要望がある場合には、フィン部材１０をルーフパネル２の下面に設けることも可能である。   In addition, although the example which provided the fin member 10 in the upper surface of the headlining 3 was given and demonstrated, when there exists a request which enlarges the area which releases the heat from the roof panel 2, the fin member 10 is used for the lower surface of the roof panel 2. It is also possible to provide it.

車両１のルーフの部位は、ルーフパネル２とヘッドライニング３の隙間に空気層が存在している。このため、車体の外表面温度と車室内の温度の差により、空気層に自然対流が発生して対流による熱伝達が行われる。ルーフパネル２とヘッドライニング３の温度分布が均一であれば、空気層で発生する自然対流は２次元渦となって熱流速が大きくなり、熱伝達が抑制されて断熱・遮音効果を保つことができる。   In the roof portion of the vehicle 1, an air layer exists in the gap between the roof panel 2 and the headlining 3. For this reason, natural convection is generated in the air layer due to the difference between the outer surface temperature of the vehicle body and the temperature in the passenger compartment, and heat transfer by convection is performed. If the temperature distribution of the roof panel 2 and the head lining 3 is uniform, the natural convection generated in the air layer becomes a two-dimensional vortex, the heat flow rate increases, the heat transfer is suppressed, and the heat insulation / sound insulation effect can be maintained. it can.

ルーフパネル２とヘッドライニング３の間には断熱・遮音用のパッド材５が配されているため、ルーフパネル２とヘッドライニング３の温度分布が均一になることはなく、パッド材５の部位とその周囲とでは温度差が大きくなる。パッド材５の周囲の温度差が大きくなって温度分布に偏りが生じると、自然対流が３次元渦となり、渦が滞留して熱流速が小さくなり、熱伝達が促進されてしまう虞があった。   Since a heat insulating / sound insulating pad material 5 is disposed between the roof panel 2 and the head lining 3, the temperature distribution of the roof panel 2 and the head lining 3 does not become uniform. The temperature difference from the surroundings becomes large. If the temperature difference around the pad material 5 becomes large and the temperature distribution is biased, the natural convection becomes a three-dimensional vortex, the vortex stays, the heat flow rate decreases, and heat transfer may be promoted. .

図５から図７に基づいて自然対流が３次元渦となっている状況を説明する。   A situation in which natural convection is a three-dimensional vortex will be described with reference to FIGS.

図６に示すように、車両１の両端部近傍は外気の影響を受ける部位１１が存在し、パッド材５の境界部で温度差が発生する。これにより、車幅方向の流れの渦１２の発生が助長される。図５に示すように、車両１の前方近傍は外気の影響を受ける部位１４が存在し、前方の部位に車両１の前後方向の流れの渦１５の発生が助長される。   As shown in FIG. 6, there are portions 11 that are affected by outside air near both ends of the vehicle 1, and a temperature difference occurs at the boundary portion of the pad material 5. Thereby, generation | occurrence | production of the flow vortex 12 of the vehicle width direction is encouraged. As shown in FIG. 5, there is a portion 14 that is affected by outside air in the vicinity of the front of the vehicle 1, and the generation of a vortex 15 in the front-rear direction of the vehicle 1 is promoted at the front portion.

ルーフパネル２とヘッドライニング３の間には、車幅方向の流れの渦１２と、車両１の前後方向の流れの渦１５が存在することになり、３次元渦が複雑に発生することになる。自然対流が３次元渦となることで、渦が滞留して熱流速が小さくなって熱伝達が促進されてしまう虞があった。   Between the roof panel 2 and the headlining 3, a flow vortex 12 in the vehicle width direction and a flow vortex 15 in the front-rear direction of the vehicle 1 exist, and a three-dimensional vortex is generated in a complicated manner. . When natural convection becomes a three-dimensional vortex, there is a possibility that the vortex stays and the heat flow rate is reduced to promote heat transfer.

つまり、図７に示すように、パッド材５が配される部位は断熱効果により熱の移動が少なく、パッド材５が配される部位の周囲は、温度差が大きく渦が対流して熱流速が小さくなって熱伝達が促進される促進部位１６が広がる。   That is, as shown in FIG. 7, the portion where the pad material 5 is disposed has less heat transfer due to the heat insulation effect, and the surroundings of the portion where the pad material 5 is disposed have a large temperature difference and vortices convect and heat flow velocity , And the promotion part 16 where heat transfer is promoted is expanded.

車幅方向の流れの渦１２と、車両１の前後方向の流れの渦１５の存在により複雑に発生する３次元渦は、車両１の前後方向に延びるフィン部材１０によって２次元渦に規制される。   The three-dimensional vortex generated in a complicated manner due to the presence of the flow vortex 12 in the vehicle width direction and the flow vortex 15 in the front-rear direction of the vehicle 1 is restricted to the two-dimensional vortex by the fin member 10 extending in the front-rear direction of the vehicle 1. .

図２から図４に基づいて３次元渦が２次元渦に規制される状況を説明する。   A situation where the three-dimensional vortex is restricted to the two-dimensional vortex will be described with reference to FIGS.

図３に示すように、車両１の前後方向に延びるフィン部材１０が車幅方向に８本設けられている。車幅方向の流れの渦１２はフィン部材１０により崩壊する。図２に示すように、車両１の前後方向の流れの渦１５はフィン部材１０の間で車両１の前後方向に規制されて２次元渦１８とされる。   As shown in FIG. 3, eight fin members 10 extending in the front-rear direction of the vehicle 1 are provided in the vehicle width direction. The vortex 12 of the flow in the vehicle width direction is collapsed by the fin member 10. As shown in FIG. 2, the flow vortex 15 in the front-rear direction of the vehicle 1 is regulated between the fin members 10 in the front-rear direction of the vehicle 1 to form a two-dimensional vortex 18.

ルーフパネル２とヘッドライニング３の間の渦は、フィン部材１０の間で規制された２次元渦１８だけとなり、自然対流が２次元渦１８となることで、渦が滞留することがなく熱流速を確保し、熱伝達が抑制される。   The vortex between the roof panel 2 and the headlining 3 is only the two-dimensional vortex 18 regulated between the fin members 10, and the natural convection becomes the two-dimensional vortex 18. And heat transfer is suppressed.

つまり、図４に示すように、パッド材５が配される部位は断熱効果により熱の移動が少なく、パッド材５が配される部位の周囲は温度差が大きいにも拘わらず、渦が滞留することがないので熱流速が確保され、熱伝達が抑制されて図７で示した促進部位１６が発生することがない。   That is, as shown in FIG. 4, the portion where the pad material 5 is arranged has less heat transfer due to the heat insulating effect, and the vortex stays around the portion where the pad material 5 is arranged even though the temperature difference is large. Therefore, the heat flow rate is ensured, the heat transfer is suppressed, and the promotion portion 16 shown in FIG. 7 is not generated.

このため、空気層に発生する渦をフィン部材１０により２次元渦１８に規制することができ、ルーフパネル２とヘッドライニング３の間の空気層で３次元渦の発生を抑制することが可能になり、熱流速を大きくして熱伝達を抑制することができる。   Therefore, the vortex generated in the air layer can be restricted to the two-dimensional vortex 18 by the fin member 10, and the generation of the three-dimensional vortex can be suppressed in the air layer between the roof panel 2 and the headlining 3. Thus, heat transfer can be suppressed by increasing the heat flow rate.

従って、車室内への外部からの熱負荷を減らすことができ、エアコン等で調整される車室内の温度が車室外の温度により影響を受けにくくなり、断熱の効果が的確に得られやすくなり、温度調整の効率が低下することがない。   Therefore, the heat load from the outside to the vehicle interior can be reduced, the temperature inside the vehicle interior adjusted by an air conditioner or the like is less affected by the temperature outside the vehicle interior, and the effect of heat insulation can be easily obtained accurately. The efficiency of temperature adjustment does not decrease.

尚、温度変化部としては、上記したパッド材５の他に、ルーフパネル２に設けたサンルーフ等が挙げられる。また、ルーフパネル２及びヘッドライニング３の両方に温度変化部を設けることも可能である。   In addition, as a temperature change part, the sun roof etc. which were provided in the roof panel 2 other than the above-mentioned pad material 5 are mentioned. Moreover, it is also possible to provide a temperature change part in both the roof panel 2 and the headlining 3.

図４に示すように、フィン部材１０の前端は、車両１の前後方向でパッド材５の略中央部に上面視でフィン部材１０の前端とパッド材５がラップする部分が存在するように配され、フィン部材１０の後端は、車両１の前後方向で最後部に配されている。また、フィン部材１０の車幅方向のピッチは、例えば、１００ｍｍ程度に設定されている。車幅方向のピッチを１００ｍｍ程度に設定することで、フィン部材１０の間で３次元渦が発生することがない。また、この場合は、ヘッドライニング３の車幅方向の中央を対称に、対となるフィン部材１０が複数配されている。   As shown in FIG. 4, the front end of the fin member 10 is arranged so that there is a portion where the front end of the fin member 10 and the pad material 5 wrap in a substantially central portion of the pad material 5 in the front-rear direction of the vehicle 1 in a top view. The rear end of the fin member 10 is arranged at the rearmost part in the front-rear direction of the vehicle 1. Moreover, the pitch of the fin member 10 in the vehicle width direction is set to about 100 mm, for example. By setting the pitch in the vehicle width direction to about 100 mm, a three-dimensional vortex is not generated between the fin members 10. In this case, a plurality of pairs of fin members 10 are arranged symmetrically with respect to the center of the headlining 3 in the vehicle width direction.

尚、フィン部材１０の前端、後端の位置、及び、車幅方向のピッチは一例であり、車両１の種類や渦の発生状況により変更することができる。   Note that the positions of the front and rear ends of the fin member 10 and the pitch in the vehicle width direction are examples, and can be changed depending on the type of the vehicle 1 and the state of occurrence of vortices.

ルーフパネル２とヘッドライニング３の間の空間の高さ方向の形状により、車幅方向の渦が発生する高さが異なる。このため、発生する渦の高さに応じてフィン部材１０の高さ方向の形状を設定することができる。   Depending on the shape in the height direction of the space between the roof panel 2 and the headlining 3, the height at which the vortex in the vehicle width direction is generated differs. For this reason, the shape of the height direction of the fin member 10 can be set according to the height of the generated vortex.

上述した実施例におけるフィン部材１０は、車両１の前後方向に延びて車幅方向の渦を崩壊させているが、車幅方向に延びるフィン部材を用い、車両１の前後方向の渦を崩壊させて２次元渦とすることも可能である。   The fin member 10 in the embodiment described above extends in the front-rear direction of the vehicle 1 and collapses the vortex in the vehicle width direction, but uses the fin member extending in the vehicle width direction to collapse the vortex in the front-rear direction of the vehicle 1. It is possible to use a two-dimensional vortex.

上述した車両のルーフ部構造は、ルーフパネル２とヘッドライニング３の間の空気層に発生する３次元渦をフィン部材１０により２次元渦に規制することができ、ルーフパネル２とヘッドライニング３の間の空気層で３次元渦の発生を抑制することが可能になり、熱流速を大きくして熱伝達を抑制することができる。   In the vehicle roof structure described above, the three-dimensional vortex generated in the air layer between the roof panel 2 and the headlining 3 can be restricted to the two-dimensional vortex by the fin member 10. It becomes possible to suppress generation | occurrence | production of a three-dimensional vortex in the air layer in between, and heat transfer can be suppressed by increasing a heat flow rate.

本発明は、車両のルーフ部構造の産業分野で利用することができる。   The present invention can be used in the industrial field of vehicle roof structure.

１ 車両
２ ルーフパネル
３ ヘッドライニング
５ パッド材
１０ フィン部材
１１、１４ 外気の影響を受ける部位
１２ 車幅方向の流れの渦
１５ 前後方向の流れの渦
１６ 促進部位
１８ ２次元渦 DESCRIPTION OF SYMBOLS 1 Vehicle 2 Roof panel 3 Headlining 5 Pad material 10 Fin member 11, 14 Parts affected by outside air 12 Flow vortex in the vehicle width direction 15 Flow vortex in the front-rear direction 16 Promoting part 18 Two-dimensional vortex

Claims (4)

車両のルーフ面を形成するルーフパネルと、
前記ルーフパネルの下面側に隙間を空けて配され車室の天井となるヘッドライニングと、
前記ルーフパネル、及び、前記ヘッドライニングの隙間に配され、前記隙間の空気層に発生する３次元渦を２次元渦に規制するフィン部材とを備えた
ことを特徴とする車両のルーフ部構造。 A roof panel forming a roof surface of the vehicle;
A head lining which is arranged with a gap on the lower surface side of the roof panel and becomes the ceiling of the passenger compartment;
A roof part structure for a vehicle, comprising: the roof panel; and a fin member that is arranged in a gap between the head linings and restricts a three-dimensional vortex generated in an air layer in the gap into a two-dimensional vortex. 請求項１に記載の車両のルーフ部構造において、
前記ルーフパネル及び前記ヘッドライニング、または、前記ルーフパネルもしくは前記ヘッドライニングには、温度変化部が配され、
前記フィン部材は、前記温度変化部の周囲に備えられている
ことを特徴とする車両のルーフ部構造。 The roof structure of a vehicle according to claim 1,
The roof panel and the head lining, or the roof panel or the head lining is provided with a temperature changing portion,
The roof structure of a vehicle, wherein the fin member is provided around the temperature changing portion. 請求項２に記載の車両のルーフ部構造において、
前記温度変化部は、
前記ルーフパネル、及び、前記ヘッドライニングの間に配されるパッド材である
ことを特徴とする車両のルーフ部構造。 In the roof part structure of the vehicle according to claim 2,
The temperature changing part is
A roof structure of a vehicle, which is a pad material disposed between the roof panel and the headlining. 請求項３に記載の車両のルーフ部構造において、
前記パッド材は、車両前部の中央部に配され、
前記フィン部材は、車両の前後方向に延びて、前記車両の幅方向に複数配されている
ことを特徴とする車両のルーフ部構造。 In the vehicle roof structure according to claim 3,
The pad material is arranged at the center of the front part of the vehicle,
A plurality of the fin members extend in the front-rear direction of the vehicle and are arranged in the width direction of the vehicle.
JP2013253460A 2013-12-06 2013-12-06 Vehicle roof structure Expired - Fee Related JP6350791B2 (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0667199U (en) * 1993-03-05 1994-09-20 本州製紙株式会社 Car ceiling material
JPH09164888A (en) * 1995-12-18 1997-06-24 Suzuki Motor Corp Mounting structure of ceiling member for car
WO2001029492A1 (en) * 1999-10-22 2001-04-26 Seft Development Laboratory Co., Ltd. Cooling device
JP2004330930A (en) * 2003-05-09 2004-11-25 Nissan Motor Co Ltd Heat shield and heat release structure for automobile
JP2007238065A (en) * 2006-03-07 2007-09-20 Masayuki Abe Roof heat insulation system and method for automobile or the like
JP2008284907A (en) * 2007-05-15 2008-11-27 Hayashi Telempu Co Ltd Reinforcing structure of ceiling interior trim part for automobile and ceiling interior trim part for automobile
JP2009067370A (en) * 2007-09-10 2009-04-02 Ikuo Iwai Roof panel for automobile
JP2011251581A (en) * 2010-05-31 2011-12-15 Toyota Boshoku Corp Canopy structure for vehicle
JP2013023184A (en) * 2011-07-26 2013-02-04 Toyota Industries Corp Outer panel for transportation apparatus and method of manufacturing the same

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0667199U (en) * 1993-03-05 1994-09-20 本州製紙株式会社 Car ceiling material
JPH09164888A (en) * 1995-12-18 1997-06-24 Suzuki Motor Corp Mounting structure of ceiling member for car
WO2001029492A1 (en) * 1999-10-22 2001-04-26 Seft Development Laboratory Co., Ltd. Cooling device
JP2004330930A (en) * 2003-05-09 2004-11-25 Nissan Motor Co Ltd Heat shield and heat release structure for automobile
JP2007238065A (en) * 2006-03-07 2007-09-20 Masayuki Abe Roof heat insulation system and method for automobile or the like
JP2008284907A (en) * 2007-05-15 2008-11-27 Hayashi Telempu Co Ltd Reinforcing structure of ceiling interior trim part for automobile and ceiling interior trim part for automobile
JP2009067370A (en) * 2007-09-10 2009-04-02 Ikuo Iwai Roof panel for automobile
JP2011251581A (en) * 2010-05-31 2011-12-15 Toyota Boshoku Corp Canopy structure for vehicle
JP2013023184A (en) * 2011-07-26 2013-02-04 Toyota Industries Corp Outer panel for transportation apparatus and method of manufacturing the same

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