JP2012210878A - Cooling structure for vehicle heating component - Google Patents

Cooling structure for vehicle heating component Download PDF

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JP2012210878A
JP2012210878A JP2011077997A JP2011077997A JP2012210878A JP 2012210878 A JP2012210878 A JP 2012210878A JP 2011077997 A JP2011077997 A JP 2011077997A JP 2011077997 A JP2011077997 A JP 2011077997A JP 2012210878 A JP2012210878 A JP 2012210878A
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duct
generating component
vehicle
heat
disposed
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Tasuke Kondo
太介 近藤
Motoo Omori
基央 大森
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility

Abstract

PROBLEM TO BE SOLVED: To provide a cooling structure for a vehicle heating component that can maintain high quietness performance in a vehicle cabin.SOLUTION: The cooling structure includes: the heating component arranged in the vehicle cabin; and a fan 37 that cools the heating part by sending air to the heating component via a duct and exchanging heat with the air. An armrest 21 protruding toward the vehicle cabin and a small article case 23 are provided in a rear door 15. A duct intake port 85 that is formed at the front of the duct of the fan 37 is disposed to closely face a rear surface 25 formed at the rear of the armrest 21 and the small article case 23.

Description

本発明は、自動車用発熱部品の冷却構造に関する。   The present invention relates to a cooling structure for a heat generating component for an automobile.

近年、環境問題の観点から電気自動車やハイブリッド車等が注目されている。これらの車両には、通電によって発熱する発熱部品、例えばバッテリ等が搭載されており、発熱部品を冷却するために種々の冷却装置が開発されている(例えば、特許文献1参照)。   In recent years, electric vehicles, hybrid vehicles, and the like have attracted attention from the viewpoint of environmental problems. These vehicles are equipped with heat-generating components that generate heat when energized, for example, batteries, and various cooling devices have been developed to cool the heat-generating components (see, for example, Patent Document 1).

前記特許文献1においては、車室後部のトランクルーム内に発熱部品であるバッテリを収容し、このトランクルームの上部にパーセルシェルフを設け、送風装置のダクトにおける吸気口を前記パーセルシェルフに形成した開口部に取り付けている。これによって、前記開口部から吸気口およびダクトを介して空気を吸入しバッテリを冷却している。   In Patent Document 1, a battery, which is a heat-generating component, is accommodated in a trunk room at the rear of the passenger compartment, a parcel shelf is provided at the top of the trunk room, and an air inlet in a duct of a blower is formed in an opening formed in the parcel shelf. It is attached. Thus, air is sucked from the opening through the air inlet and the duct to cool the battery.

特開2008−141945号公報JP 2008-141945 A

しかしながら、前記特許文献1に記載の送風装置においては、送風装置のダクトの吸気口が後席に着座した乗員の耳位置近くに配置されているため、車室内の静音性が低下するおそれがあった。   However, in the air blower described in Patent Document 1, since the air inlet of the duct of the air blower is disposed near the ear position of the occupant seated in the rear seat, there is a possibility that the quietness in the passenger compartment is reduced. It was.

そこで、本発明は、車室内の静音性を高く維持できる自動車用発熱部品の冷却構造を提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a cooling structure for a heat generating component for an automobile that can maintain high quietness in a vehicle interior.

本発明に係る自動車用発熱部品の冷却構造では、車室内に設けた発熱部品にダクトを介して車室内の空気を送って前記発熱部品を冷却する送風装置を設けている。ドアに車室内側に向けてアームレストを突設し、前記送風装置のダクトの先端に設けたダクト吸気口を、前記アームレストの後面に近接して対向配置させている。   In the cooling structure for a heat generating component for automobiles according to the present invention, a blower for cooling the heat generating component by sending air in the vehicle interior to the heat generating component provided in the vehicle interior via a duct is provided. An armrest projects from the door toward the interior of the door, and a duct air inlet provided at the front end of the duct of the blower is disposed opposite to the rear surface of the armrest.

本発明に係る自動車用発熱部品の冷却構造によれば、ダクト吸気口が後席に着座した乗員の耳位置から離間した位置に配置されるため、空気の吸い込み音が乗員に聞こえにくくなり、車室内の静音性が向上する。また、乗員からはダクト吸気口が見えにくくなり、車室内の見映えが向上するという効果もある。   According to the cooling structure for a heat generating component for an automobile according to the present invention, the duct intake port is disposed at a position separated from the position of the occupant's ear seated on the rear seat. The quietness in the room is improved. In addition, it is difficult for the passenger to see the duct intake port, and the appearance of the passenger compartment is improved.

本発明の実施形態による車両室内の後部を斜め前方から見た斜視図である。It is the perspective view which looked at the rear part of the vehicle interior by the embodiment of the present invention from diagonally forward. 図1を車両前方から見た正面図である。It is the front view which looked at FIG. 1 from the vehicle front. 図1を車両左側から見た側面図である。It is the side view which looked at FIG. 1 from the vehicle left side. シートバック側部の近傍を拡大した断面図である。It is sectional drawing to which the vicinity of the seat back side part was expanded. 本発明の実施形態による発熱部品を後方から前方に向けて見た背面図である。It is the rear view which looked at the heat-emitting component by embodiment of this invention toward the front from back.

以下、本発明の実施形態を図面と共に詳述する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図1〜図4に示すように、車両室内の後部には、リアシート1が配設されている。リアシート1は、フロアパネル3に取り付けられたシートクッション5と、該シートクッション5に対して前後方向に回動可能に支持されたシートバック7と、該シートバック7の上端に配設されたヘッドレスト9と、を備えている。前記シートバック7は、車幅方向および上下方向に延在するシートバック本体部11と、該シートバック本体部11の左右両端に配設され、車両斜め前方に向けて延在するシートバック側部13と、を備えている。   As shown in FIGS. 1 to 4, a rear seat 1 is disposed at the rear of the vehicle compartment. The rear seat 1 includes a seat cushion 5 attached to the floor panel 3, a seat back 7 supported so as to be pivotable in the front-rear direction with respect to the seat cushion 5, and a headrest disposed at an upper end of the seat back 7. 9. The seat back 7 includes a seat back main body portion 11 extending in the vehicle width direction and the vertical direction, and a seat back side portion disposed at both left and right ends of the seat back main body portion 11 and extending obliquely forward in the vehicle. 13.

前記リアシート1の側方には、前端を中心に開閉可能なリアドア15が配設されている。このリアドア15の車室内側にはドアトリム17が配設されており、ドアトリム17には車室内側に向けて突出するアームレスト21と小物入れ23が形成されている。これらのアームレスト21と小物入れ23は、車両前後方向に沿って延設されており、後端に後面25が形成されている。   A rear door 15 that can be opened and closed around the front end is disposed on the side of the rear seat 1. A door trim 17 is disposed on the vehicle interior side of the rear door 15, and an armrest 21 and an accessory case 23 that project toward the vehicle interior side are formed on the door trim 17. The armrest 21 and the accessory case 23 extend along the vehicle front-rear direction, and a rear surface 25 is formed at the rear end.

さらに、リアシート1の後側には、トランクルーム27が配設されている。このトランクルーム27は、シートバック7の上端高さに配置されて前後方向および車幅方向に沿って延設されたパーセルシェルフ29と、フロアパネル3と、シートバック7と、によって画成されている。   Further, a trunk room 27 is disposed on the rear side of the rear seat 1. The trunk room 27 is defined by a parcel shelf 29 arranged at the upper end height of the seat back 7 and extending along the front-rear direction and the vehicle width direction, the floor panel 3, and the seat back 7. .

このトランクルーム27には、発熱部品31であるバッテリ33とDC/DCコンバータ35が配設されている。ここで、バッテリ33とDC/DCコンバータ35は、通電することによって発熱する電気部品である。そして、前記バッテリ33とDC/DCコンバータ35は、本実施形態による送風装置37で送られる空気と熱交換することによって冷却される。   In the trunk room 27, a battery 33 and a DC / DC converter 35, which are heat generating components 31, are disposed. Here, the battery 33 and the DC / DC converter 35 are electrical components that generate heat when energized. The battery 33 and the DC / DC converter 35 are cooled by exchanging heat with the air sent by the blower 37 according to the present embodiment.

ここで、バッテリ33とDC/DCコンバータ35との搭載状態について説明する。   Here, the mounting state of the battery 33 and the DC / DC converter 35 will be described.

前記パーセルシェルフ29の前端部は、折れ曲がって下方に延びる上端取付部39に形成されており、フロアパネル3の段差部41には車幅方向に沿ってフロアメンバ43が接合されている。一方、上下方向に沿って延在する支持メンバ45が車幅方向に所定間隔をおいて3本配置され、これらの上端および下端はボルトを介して前記上端取付部39およびフロアメンバ43に締結されている。そして、正面視矩形状の支持板47が前記支持メンバ45の後側に接合されており、この支持板47に、前記バッテリ33を収容したバッテリケース49およびDC/DCコンバータ35を収容したDC/DCコンバータケース51が取り付けられている。   A front end portion of the parcel shelf 29 is formed at an upper end mounting portion 39 that is bent and extends downward, and a floor member 43 is joined to the step portion 41 of the floor panel 3 along the vehicle width direction. On the other hand, three support members 45 extending in the vertical direction are arranged at a predetermined interval in the vehicle width direction, and their upper ends and lower ends are fastened to the upper end mounting portion 39 and the floor member 43 via bolts. ing. A support plate 47 having a rectangular shape in front view is joined to the rear side of the support member 45, and a battery case 49 containing the battery 33 and a DC / DC converter 35 containing the battery 33 are accommodated on the support plate 47. A DC converter case 51 is attached.

具体的には、支持板47の後側にバッテリケース49が取り付けられ、該バッテリケース49の後側にDC/DCコンバータケース51が取り付けられている。なお、バッテリ内には複数のセル53が配設されている。また、フロアパネル3の段差部41の上に支持台55が設けられ、該支持台55の上にバッテリケース49が載置されている。従って、シートバック7、支持メンバ45、支持板47、バッテリケース49およびDC/DCコンバータケース51は全て、車両後方に向かうにつれて斜め上方に延びるように傾斜配置されている。なお、フロアパネル3の車幅方向両端部の下側には、車両前後方向に沿ってサイドメンバ93およびサイドシル95が設けられている。   Specifically, a battery case 49 is attached to the rear side of the support plate 47, and a DC / DC converter case 51 is attached to the rear side of the battery case 49. A plurality of cells 53 are provided in the battery. A support base 55 is provided on the stepped portion 41 of the floor panel 3, and a battery case 49 is placed on the support base 55. Accordingly, the seat back 7, the support member 45, the support plate 47, the battery case 49, and the DC / DC converter case 51 are all inclined so as to extend obliquely upward toward the rear of the vehicle. A side member 93 and a side sill 95 are provided below the both ends of the floor panel 3 in the vehicle width direction along the vehicle front-rear direction.

前記シートバック本体部11の後側からシートバック側部13にかけて本実施形態による送風装置37が配設されている。具体的には、送風装置37は、バッテリ33およびDC/DCコンバータ35の上端部に連結されてこれらに空気を送り込むエア排出部61と、該エア排出部61に接続されてバッテリケース49およびDC/DCコンバータケース51の側方に配置された送風機63と、該送風機63に接続されてほぼ車両前後方向に延びるダクト65と、を備えている。   A blower device 37 according to the present embodiment is disposed from the rear side of the seat back main body 11 to the seat back side portion 13. Specifically, the blower device 37 is connected to the upper end portions of the battery 33 and the DC / DC converter 35 and sends air to them, and is connected to the air discharge portion 61 and connected to the battery case 49 and DC. / A fan 63 disposed on the side of the DC converter case 51 and a duct 65 connected to the fan 63 and extending substantially in the vehicle front-rear direction.

前記ダクト65は、送風機63に接続されて車幅方向に延びる連結部67と、該連結部67に接続された接続部69と、該接続部69から車幅方向端の屈曲部71まで延びる湾曲部73と、前記屈曲部71から車両前方に延びるダクト先端部75とから構成されている。前記湾曲部73は、平面視で、接続部69と屈曲部71とを結ぶ直線に対して車室内側に向けて円弧状に凹んで形成されており、ホイールハウス81にブラケット83を介して取り付けられている。また、前記ダクト先端部75の前端には、車室内の空気を吸い込むグリル状のダクト吸気口85が設けられている。このダクト吸気口85は、後席に着座した乗員の耳位置から離間して配置されており、鉤型クリップ87を車体側の係止片89に差し込んで係止されている。また、前述したように、アームレスト21および小物入れ23の後端には、後面25が形成されており、前記ダクト吸気口85はこの後面25に近接して対向配置されている。なお、前記ダクト65における湾曲部73は、車両側方から見ると、車両後方に向かうにつれて斜め上方に傾斜して配置されている。   The duct 65 is connected to the blower 63 and extends in the vehicle width direction, a connection portion 69 connected to the connection portion 67, and a curve extending from the connection portion 69 to the bent portion 71 at the vehicle width direction end. It is comprised from the part 73 and the duct front-end | tip part 75 extended from the said bending part 71 to the vehicle forward. The curved portion 73 is formed to be recessed in an arc shape toward the vehicle interior side with respect to a straight line connecting the connecting portion 69 and the bent portion 71 in plan view, and is attached to the wheel house 81 via a bracket 83. It has been. In addition, a grill-like duct intake port 85 that sucks air in the passenger compartment is provided at the front end of the duct front end portion 75. The duct intake port 85 is disposed apart from the ear position of the occupant seated in the rear seat, and is locked by inserting the hook-shaped clip 87 into the locking piece 89 on the vehicle body side. As described above, the rear surface 25 is formed at the rear ends of the armrest 21 and the accessory case 23, and the duct intake port 85 is disposed in close proximity to the rear surface 25. It should be noted that the curved portion 73 in the duct 65 is inclined obliquely upward as it goes from the vehicle side toward the vehicle rear.

図5に示すように、DC/DCコンバータケース51の内部には、車両左側にDC/DCコンバータ35が配設され、車両右側に中継盤91が配設されている。これらのDC/DCコンバータ35および中継盤91は、通電することによって発熱する発熱部品31である。   As shown in FIG. 5, a DC / DC converter 35 is disposed on the left side of the vehicle and a relay panel 91 is disposed on the right side of the vehicle inside the DC / DC converter case 51. The DC / DC converter 35 and the relay panel 91 are heat-generating components 31 that generate heat when energized.

以下に、本実施形態による作用効果を説明する。   Below, the effect by this embodiment is demonstrated.

(1)本実施形態による自動車用発熱部品の冷却構造は、車室内に配設した発熱部品31と、該発熱部品31にダクト65を介して車室内の空気を送り該空気との熱交換によって前記発熱部品31を冷却する送風装置37と、を備えた自動車用発熱部品の冷却構造である。リアドア15に車室内側に向けて突出するアームレスト21および小物入れ23を設け、前記送風装置37のダクト65の先端に設けたダクト吸気口85を、前記アームレスト21および小物入れ23の後端に設けた後面25に近接して対向配置している。 (1) The cooling structure for a heat generating component for an automobile according to the present embodiment includes a heat generating component 31 disposed in a vehicle interior, and air in the vehicle interior is sent to the heat generating component 31 through a duct 65 by heat exchange with the air. This is a cooling structure for an automotive heat-generating component, including a blower device 37 that cools the heat-generating component 31. The rear door 15 is provided with an armrest 21 and an accessory case 23 projecting toward the vehicle interior side, and a duct inlet 85 provided at the tip of the duct 65 of the blower device 37 is provided at the rear end of the armrest 21 and the accessory case 23. The rear face 25 is disposed in close proximity to each other.

従って、ダクト吸気口85が後席に着座した乗員の耳位置から離間した位置に配置されるため、空気の吸い込み音が乗員に聞こえにくくなり、車室内の静音性が向上する。また、乗員からはダクト吸気口85が見えにくくなり、車室内の見映えが向上するという効果がある。   Therefore, the duct intake port 85 is disposed at a position away from the ear position of the occupant seated in the rear seat, so that it is difficult for the occupant to hear the air suction sound, and the quietness in the passenger compartment is improved. In addition, it is difficult for the occupant to see the duct intake port 85, and the appearance of the passenger compartment is improved.

(2)前記送風装置37のダクト65の少なくとも一部である湾曲部73を、後方に向かうにつれて斜め上方に延在するように傾斜配置している。 (2) The curved portion 73 which is at least a part of the duct 65 of the blower device 37 is inclined so as to extend obliquely upward toward the rear.

従って、仮にダクト吸気口85から雨水等が浸入した場合であっても、重力によって湾曲部73に溜まるため、発熱部品31まで送られることを抑制することができる。   Therefore, even if rainwater or the like enters from the duct intake port 85, the rainwater or the like accumulates in the curved portion 73 due to gravity, so that it can be prevented from being sent to the heat generating component 31.

15…リアドア(ドア)
21…アームレスト
23…小物入れ
25…後面
31…発熱部品
33…バッテリ(発熱部品)
35…DC…DC/コンバータ(発熱部品)
37…送風装置
65…ダクト
85…ダクト吸気口
91…中継盤(発熱部品)
15 ... Rear door (door)
DESCRIPTION OF SYMBOLS 21 ... Armrest 23 ... Small accessory case 25 ... Rear surface 31 ... Heat-generating component 33 ... Battery (heat-generating component)
35 ... DC ... DC / converter (heat generating component)
37 ... Blower 65 ... Duct 85 ... Duct inlet 91 ... Relay panel (heat generating component)

Claims (2)

車室内に配設した発熱部品と、該発熱部品にダクトを介して車室内の空気を送り該空気との熱交換によって前記発熱部品を冷却する送風装置と、を備えた自動車用発熱部品の冷却構造であって、
ドアに車室内側に向けて突出するアームレストを設け、前記送風装置のダクトの先端に設けたダクト吸気口を、前記アームレストの後面に対向して配置したことを特徴とする自動車用発熱部品の冷却構造。
Cooling of a heat generating component for an automobile, comprising: a heat generating component disposed in the vehicle interior; and a blower that sends air in the vehicle interior to the heat generating component through a duct to cool the heat generating component by heat exchange with the air. Structure,
Cooling of heat-generating parts for automobiles, characterized in that an armrest that protrudes toward the vehicle interior side is provided on the door, and a duct intake port provided at a front end of the duct of the blower device is disposed opposite the rear surface of the armrest. Construction.
前記送風装置のダクトの少なくとも一部を、後方に向かうにつれて斜め上方に延在するように傾斜配置したことを特徴とする請求項1に記載の自動車用発熱部品の冷却構造。   2. The cooling structure for a heat generating component for an automobile according to claim 1, wherein at least a part of the duct of the blower is inclined so as to extend obliquely upward as it goes rearward.
JP2011077997A 2011-03-31 2011-03-31 Cooling structure for vehicle heating component Pending JP2012210878A (en)

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JP7020131B2 (en) 2018-01-18 2022-02-16 トヨタ自動車株式会社 vehicle

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