JP2015054567A

JP2015054567A - Air conditioner for vehicle

Info

Publication number: JP2015054567A
Application number: JP2013187824A
Authority: JP
Inventors: 陽一狩野; Yoichi Karino; 健二福田; Kenji Fukuda
Original assignee: Keihin Corp
Current assignee: Keihin Corp
Priority date: 2013-09-11
Filing date: 2013-09-11
Publication date: 2015-03-23
Anticipated expiration: 2033-09-11
Also published as: JP6306305B2

Abstract

PROBLEM TO BE SOLVED: To easily and securely fix an exterior member to an air-conditioning case and prevent air within the air-conditioning case from leaking to outside in an air conditioner for a vehicle.SOLUTION: A first mounting portion 34 for fitting a heater cover 32 is formed on a side wall portion 26a of an air-conditioning case, and comprises a first boss portion protruded from the side wall portion 26a, a first claw portion 44 separated from the first boss portion and a first opening portion located adjacent to the first claw portion 44. When the heater cover 32 is fixed, the first boss portion is inserted into a swollen portion 70 of a first fixation portion 66 of the heater cover, and the first claw portion 44 is inserted into a first engagement hole 76 for engagement. A first skirt portion 72 of the first fixation portion 66 closes the first opening portion that is opened between the first claw portion 44 and a first wall portion on the side wall portion 26a. Thus, this structure prevents leakage of air within the air-conditioning case through the first opening portion, and prevents flow passage resistance caused by protrusion of the first claw portion 44 into the air-conditioning case.

Description

本発明は、車両に搭載され、熱交換器によって温度調整のなされた空気を車室内へと送風して車室内の温度調整を行う車両用空調装置に関する。 The present invention relates to a vehicle air conditioner that is mounted on a vehicle and that adjusts the temperature of the vehicle interior by blowing air that has been temperature-adjusted by a heat exchanger into the vehicle interior.

従来から、車両に搭載される車両用空調装置は、送風機によって内気・外気を空気通路を内部に有した空調ケースへと取り込み、冷却手段であるエバポレータにより冷却された空気と、加熱手段であるヒータコアにより加熱された空気とを前記空調ケース内においてダンパを作動させることで所望の混合比率で混合した後、前記空調ケースに設けられた複数の吹出口から送風ダクトを通じて車室内へと送風することで前記車室内の温度及び湿度の調整を行っている。 2. Description of the Related Art Conventionally, a vehicle air conditioner mounted on a vehicle has taken inside air / outside air into an air conditioning case having an air passage inside by a blower, air cooled by an evaporator as a cooling means, and a heater core as a heating means The air heated by the air conditioning case is mixed in a desired mixing ratio by operating a damper in the air conditioning case, and then blown from the plurality of air outlets provided in the air conditioning case into the vehicle interior through the air duct. The temperature and humidity in the passenger compartment are adjusted.

このような車両用空調装置では、エバポレータ及びヒータコアに接続された配管を覆う保護カバーや、ダンパを駆動させるリンクを固定するブラケット等の外装部材を空調ケースの外壁部へと固定する際、複数のボルトによって固定するのが一般的であるが、前記ボルトの数量が多いために組付作業が煩雑になると共に、金属製材料からなるボルトを装着することで重量増加を招くという問題がある。 In such a vehicle air conditioner, when fixing an exterior member such as a protective cover that covers the pipe connected to the evaporator and the heater core and a bracket that drives a damper to the outer wall of the air conditioning case, a plurality of Although it is generally fixed with bolts, there is a problem that the assembly work becomes complicated due to the large number of the bolts, and the weight is increased by attaching bolts made of a metal material.

そこで、上述した課題を解決するために、例えば、特許文献１に開示された車両用空調装置では、エバポレータ及びヒータコアの配管を覆う保護カバーの端部に、空調ケース側に突出した複数の係止部を設け、各係止部を空調ケースの外壁部に形成された挿入孔にそれぞれ挿入させることで、前記係止部の段部が挿入孔に対して係合され前記保護カバーが固定される構成としている。 Therefore, in order to solve the above-described problem, for example, in the vehicle air conditioner disclosed in Patent Document 1, a plurality of latches protruding toward the air conditioning case are provided at the end of the protective cover that covers the evaporator and the heater core pipe. By providing each portion and inserting each locking portion into an insertion hole formed in the outer wall portion of the air conditioning case, the stepped portion of the locking portion is engaged with the insertion hole and the protective cover is fixed. It is configured.

特開２００２−３６８５３号公報JP 2002-368553 A

しかしながら、特許文献１に開示された車両用空調装置では、挿入孔と係止部との間に生じた隙間を通じて空調ケース内の空気が外部へと漏出してしまい、該空調ケースを通じて車室内へと送風される空気の送風量が低下してしまうという問題がある。 However, in the vehicle air conditioner disclosed in Patent Document 1, the air in the air conditioning case leaks to the outside through the gap formed between the insertion hole and the locking portion, and enters the vehicle interior through the air conditioning case. There is a problem that the amount of air blown is reduced.

本発明は、前記の課題を考慮してなされたものであり、空調ケースに対して外装部材を容易且つ確実に固定することができ、しかも、空調ケース内の空気が外部へ漏出することを防止可能な車両用空調装置を提供することを目的とする。 The present invention has been made in view of the above-described problems, and can easily and reliably fix the exterior member to the air conditioning case, and also prevents the air in the air conditioning case from leaking to the outside. An object of the present invention is to provide a possible vehicle air conditioner.

前記の目的を達成するために、本発明は、空気の流通する流路及び車室内へ送風する送風口とを有した空調ケースと、空調ケースの内部に設けられ空気を冷却・加熱する熱交換器とを備えた車両用空調装置において、
空調ケースの外壁面には、外装部材を固定するための取付部が設けられ、外装部材には、取付部に開口した孔部を覆うカバー部が設けられると共に、取付部と外装部材とを互いに係合する爪部を有し、取付部と外装部材との間に設けられる隙間がラビリンス構造となるように形成されることを特徴とする。 In order to achieve the above object, the present invention provides an air conditioning case having a flow path through which air flows and a blower opening for blowing air into the passenger compartment, and heat exchange for cooling and heating the air provided inside the air conditioning case. In a vehicle air conditioner equipped with a vessel,
An attachment portion for fixing the exterior member is provided on the outer wall surface of the air conditioning case, and the exterior member is provided with a cover portion that covers a hole opening in the attachment portion, and the attachment portion and the exterior member are connected to each other. It has a nail | claw part to engage and it is formed so that the clearance gap provided between an attaching part and an exterior member may become a labyrinth structure.

本発明によれば、車両用空調装置を構成する空調ケースにおいて、その外壁面には外装部材を固定するための取付部が設けられ、外装部材には、取付部に開口した孔部を覆うカバー部を備え、また取付部と外装部材とを互いに係合する爪部を備え、取付部と外装部材との間に設けられる隙間にラビリンス構造が設けられている。 According to the present invention, in the air conditioning case constituting the vehicle air conditioner, the outer wall surface is provided with the mounting portion for fixing the exterior member, and the exterior member covers the hole that opens to the mounting portion. A labyrinth structure is provided in a gap provided between the attachment portion and the exterior member.

従って、従来の車両用空調装置のようにボルト等を用いることなく、外装部材を爪部の係合作用下に空調ケースの取付部に対して確実且つ容易に固定することができると共に、外装部材のカバー部が取付部に開口した孔部を覆い、しかも、両者の間にラビリンス構造を設けて孔部から外部への空気の流れを妨げることで、空調ケース内の空気が孔部を通じて外部へと漏出してしまうことが防止される。 Therefore, the exterior member can be reliably and easily fixed to the mounting portion of the air conditioning case under the engaging action of the claw portion without using bolts or the like as in the conventional vehicle air conditioner. The cover part of the cover covers the hole opening in the mounting part, and a labyrinth structure is provided between them to prevent the air flow from the hole part to the outside. It is prevented from leaking.

また、爪部は、取付部において外方に向かって突出し、爪部を外装部材に係合させることにより、爪部を介して取付部に外装部材を容易且つ確実に固定することができ、しかも、爪部が空調ケース内に突出することがないため、流路を流通する空気の流路抵抗となることが回避され円滑に流通させることができる。 Further, the claw portion protrudes outward at the attachment portion, and by engaging the claw portion with the exterior member, the exterior member can be easily and reliably fixed to the attachment portion via the claw portion. Since the claw portion does not protrude into the air conditioning case, it is possible to avoid the flow resistance of the air flowing through the flow path and to smoothly flow it.

さらに、ラビリンス構造は、取付部に形成され外装部材側に向かって立設した第１の壁部と、外装部材に形成され取付部側に向かって立設した第２の壁部とを有し、第１の壁部と第２の壁部とを、外壁面の延在方向に沿ってオフセットして配置することにより、取付部に対して外装部材を組み付けるだけで、第１の壁部及び第２の壁部とから容易にラビリンス構造を構成して隙間を通じた空気の漏出を防止することができる。 Furthermore, the labyrinth structure has a first wall portion that is formed on the attachment portion and is erected toward the exterior member side, and a second wall portion that is formed on the exterior member and is erected toward the attachment portion side. By disposing the first wall portion and the second wall portion offset along the extending direction of the outer wall surface, the first wall portion and A labyrinth structure can be easily formed from the second wall portion to prevent air leakage through the gap.

さらにまた、第１の壁部及び第２の壁部の少なくともいずれか一方を２つ以上設けることにより、取付部と外装部材との間に設けられる隙間をさらに複雑なラビリンス構造とし、孔部を通じた空気の外部への漏出をより一層効果的に防止することが可能となる。 Furthermore, by providing two or more of at least one of the first wall portion and the second wall portion, the gap provided between the attachment portion and the exterior member is made to have a more complicated labyrinth structure, and through the hole portion. It is possible to prevent the leakage of air to the outside more effectively.

またさらに、外装部材を、熱交換器に接続された配管を覆うカバー部材や、空調ケース内における空気の流通状態を切り替えるダンパを作動させるリンク機構を保持するブラケットとするとよい。 Furthermore, the exterior member may be a bracket that holds a link member that operates a cover member that covers a pipe connected to the heat exchanger and a damper that switches a flow state of air in the air conditioning case.

本発明によれば、以下の効果が得られる。 According to the present invention, the following effects can be obtained.

すなわち、車両用空調装置を構成する空調ケースにおいて、その外壁面に外装部材を固定するための取付部を設け、外装部材には、取付部に開口した孔部を覆うカバー部を備え、また取付部と外装部材とを互いに係合する爪部を備え、取付部と外装部材との間に設けられる隙間にラビリンス構造を設けることで、ボルト等を用いることなく、爪部の係合作用下に外装部材を空調ケースの取付部に対して確実且つ容易に固定することができる。また、外装部材のカバー部が取付部に開口した孔部を覆い、しかも、両者の間にラビリンス構造を設けて孔部から外部への空気の流れを妨げることで、空調ケース内の空気が孔部を通じて外部へと漏出してしまうことが防止される。 That is, in the air conditioning case constituting the vehicle air conditioner, an attachment portion for fixing the exterior member is provided on the outer wall surface, and the exterior member is provided with a cover portion that covers a hole portion opened in the attachment portion, and is attached. By providing a claw part that engages the outer part and the exterior member, and providing a labyrinth structure in the gap provided between the attachment part and the exterior member, the engagement of the claw part can be achieved without using bolts or the like. The exterior member can be reliably and easily fixed to the mounting portion of the air conditioning case. In addition, the cover part of the exterior member covers the hole part opened in the attachment part, and a labyrinth structure is provided between them to prevent the air flow from the hole part to the outside, so that the air in the air conditioning case is perforated. Leakage to the outside through the part is prevented.

本発明の実施の形態に係る車両用空調装置を示す全体正面図である。1 is an overall front view showing a vehicle air conditioner according to an embodiment of the present invention. 図２Ａは、図１の車両用空調装置における第１固定部近傍を示す拡大正面図であり、図２Ｂは、図１の車両用空調装置における第２取付部近傍を示す拡大正面図である。2A is an enlarged front view showing the vicinity of the first fixed portion in the vehicle air conditioner of FIG. 1, and FIG. 2B is an enlarged front view showing the vicinity of the second mounting portion in the vehicle air conditioner of FIG. 図３Ａは、図１のＩＩＩＡ−ＩＩＩＡ線に沿った断面図であり、図３Ｂは、図１のＩＩＩＢ−ＩＩＩＢ線に沿った断面図であり、図３Ｃは、図１のＩＩＩＣ−ＩＩＩＣ線に沿った断面図である。3A is a sectional view taken along line IIIA-IIIA in FIG. 1, FIG. 3B is a sectional view taken along line IIIB-IIIB in FIG. 1, and FIG. 3C is taken along line IIIC-IIIC in FIG. FIG. 図４Ａは、変形例に係るヒータカバーが用いられた場合の図１のＩＩＩＡ−ＩＩＩＡ線に沿った第１固定部の断面図であり、図４Ｂは、図４Ａのヒータカバーが用いられた場合の図１のＩＩＩＢ−ＩＩＩＢ線に沿った第１固定部の断面図である。4A is a cross-sectional view of the first fixing portion taken along line IIIA-IIIA in FIG. 1 when the heater cover according to the modification is used, and FIG. 4B is a case in which the heater cover in FIG. 4A is used. It is sectional drawing of the 1st fixing | fixed part along the IIIB-IIIB line | wire of FIG.

本発明に係る車両用空調装置について好適な実施の形態を挙げ、添付の図面を参照しながら以下詳細に説明する。図１において、参照符号１０は、本発明の実施の形態に係る車両用空調装置を示す。なお、車両用空調装置１０は、図１に示される右側（矢印Ａ方向）が車両の前方側、すなわち、エンジンルーム側となり、左側（矢印Ｂ方向）が該車両の後方側、すなわち、車室内側となるように搭載されるため、以下、矢印Ａ方向を車両前方とし、矢印Ｂ方向を車両後方として説明する。 DESCRIPTION OF EMBODIMENTS Preferred embodiments of a vehicle air conditioner according to the present invention will be described in detail below with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a vehicle air conditioner according to an embodiment of the present invention. In the vehicle air conditioner 10, the right side (arrow A direction) shown in FIG. 1 is the front side of the vehicle, that is, the engine room side, and the left side (arrow B direction) is the rear side of the vehicle, that is, the passenger compartment. Since it is mounted so as to be inside, the direction of arrow A will be described below as the front of the vehicle, and the direction of arrow B will be described as the rear of the vehicle.

この車両用空調装置１０は、図１に示されるように、空気の各通路１２を構成する空調ケース１４と、前記空調ケース１４の内部に配設される送風機１６と、前記空気を冷却するエバポレータ（熱交換器）１８と、該空気を加熱するヒータコア（熱交換器）２０と、前記各通路１２内を流通する空気の流れを切り換えるダンパ機構２２とを含む。 As shown in FIG. 1, the vehicle air conditioner 10 includes an air conditioning case 14 that constitutes each air passage 12, a blower 16 disposed in the air conditioning case 14, and an evaporator that cools the air. (Heat exchanger) 18, a heater core (heat exchanger) 20 that heats the air, and a damper mechanism 22 that switches the flow of air flowing through each passage 12.

空調ケース１４は、例えば、略対称形状の第１及び第２分割ケース２４、２６から構成され、前記第１及び第２分割ケース２４、２６は車両の幅方向に分割可能に設けられている。この空調ケース１４の上方には、乗員の顔近傍やフロントウィンドウへ送風を行う送風口２８が形成される。 The air conditioning case 14 includes, for example, first and second divided cases 24 and 26 having a substantially symmetrical shape, and the first and second divided cases 24 and 26 are provided so as to be divided in the width direction of the vehicle. Above the air conditioning case 14, an air outlet 28 is formed to blow air to the vicinity of the passenger's face and to the front window.

この空調ケース１４の内部には、車両用空調装置１０を車両に搭載した際に車両後方側（矢印Ｂ方向）となる位置に送風機１６が収納され、該送風機１６の下方にエバポレータ１８が収納されると共に、前記エバポレータ１８に対して車両前方側（矢印Ａ方向）となる位置にヒータコア２０が収納される。 Inside the air conditioning case 14, the blower 16 is housed at a position on the vehicle rear side (arrow B direction) when the vehicle air conditioner 10 is mounted on the vehicle, and an evaporator 18 is housed below the blower 16. At the same time, the heater core 20 is housed at a position on the vehicle front side (arrow A direction) with respect to the evaporator 18.

一方、空調ケース１４を構成する第２分割ケース２６の外部には、車両後方側（矢印Ｂ方向）となる側壁部（外壁面）２６ａにヒータカバー（外装部材）３２の装着される第１取付部３４が形成されると共に、送風機１６に対して車両前方（矢印Ａ方向）となる側面には後述するリンク機構３６を保持するブラケット（外装部材）３８を固定する第２取付部４０が形成される。 On the other hand, outside the second divided case 26 constituting the air conditioning case 14, a first attachment in which a heater cover (exterior member) 32 is attached to a side wall (outer wall surface) 26a on the vehicle rear side (in the direction of arrow B). A portion 34 is formed, and a second mounting portion 40 for fixing a bracket (exterior member) 38 that holds a link mechanism 36 described later is formed on a side surface that is in front of the vehicle (in the direction of arrow A) with respect to the blower 16. The

第１取付部３４は、図２Ａ及び図３Ａに示されるように、第２分割ケース２６の側壁部２６ａに形成され、円筒状の第１ボス部４２と、該第１ボス部４２に対して半径外方向に離間した第１爪部４４と、該第１爪部４４に隣接した第１開口部（孔部）４６とからなる。 As shown in FIGS. 2A and 3A, the first attachment portion 34 is formed on the side wall portion 26 a of the second divided case 26, and is formed with respect to the cylindrical first boss portion 42 and the first boss portion 42. The first claw portion 44 is spaced apart in the radially outward direction, and the first opening (hole) 46 is adjacent to the first claw portion 44.

この第１ボス部４２は、図３Ａに示されるように、一定径で第２分割ケース２６の側壁部２６ａに対して直立して所定高さで形成されると共に、中心部が軸方向に沿って中空となった円筒状に形成される。 As shown in FIG. 3A, the first boss portion 42 is formed with a constant diameter and upright with respect to the side wall portion 26a of the second split case 26, and has a center portion along the axial direction. And formed into a hollow cylindrical shape.

第１爪部４４は、例えば、車両の前後方向（矢印Ａ、Ｂ方向）に沿って所定幅を有した板状に形成され、第２分割ケース２６の側壁部２６ａに対して直立して所定高さだけ突出するように形成される。そして、第１爪部４４の先端には、第１ボス部４２とは反対側となる方向（矢印Ｃ１方向）に突出した係止部４８が形成される。係止部４８は、第１爪部４４の先端から基端に向かって徐々に幅広状となる断面略三角形状に形成される。 For example, the first claw portion 44 is formed in a plate shape having a predetermined width along the front-rear direction (arrow A, B direction) of the vehicle, and stands upright with respect to the side wall portion 26a of the second divided case 26 to be predetermined. It is formed so as to protrude by the height. A locking portion 48 that protrudes in the direction opposite to the first boss portion 42 (in the direction of the arrow C1) is formed at the tip of the first claw portion 44. The locking portion 48 is formed in a substantially triangular cross section that gradually becomes wider from the distal end to the proximal end of the first claw portion 44.

第１開口部４６は、第１爪部４４の上方（矢印Ｃ１方向）に断面長方形状で開口し、且つ、車両の前後方向（矢印Ａ、Ｂ方向）に沿った幅寸法が前記第１爪部４４の幅寸法と略同一で形成されると共に、図３Ａ及び図３Ｂに示されるように、前記第２分割ケース２６の側壁部２６ａに対して立設した第１壁部５０を有している。なお、この第１開口部４６は、第２分割ケース２６に第１爪部４４を成形する際に型抜きの都合で形成されるものであり、何らかの機能をさせる目的で設けられるものではない。 The first opening 46 opens in a rectangular shape above the first claw portion 44 (in the direction of arrow C1), and has a width dimension along the front-rear direction of the vehicle (in the directions of arrows A and B). As shown in FIGS. 3A and 3B, the first wall portion 50 is provided so as to be erected with respect to the side wall portion 26 a of the second divided case 26. Yes. In addition, this 1st opening part 46 is formed for the convenience of mold removal, when shape | molding the 1st nail | claw part 44 in the 2nd division | segmentation case 26, and is not provided in order to make a certain function.

第２取付部４０は、図２Ｂ及び図３Ｃに示されるように、第２分割ケース２６の側壁部２６ａに形成され、該側壁部２６ａに対して突出した位置決め部５２と、前記位置決め部５２に対して所定間隔離間した断面長方形状の第２ボス部５４と、該第２ボス部５４の内部に形成され長方形状に開口した第２開口部（孔部）５６とを有する。 2B and 3C, the second mounting portion 40 is formed on the side wall portion 26a of the second divided case 26, and projects from the side wall portion 26a. It has a second boss portion 54 having a rectangular cross-section spaced apart by a predetermined distance, and a second opening (hole) 56 formed inside the second boss portion 54 and opened in a rectangular shape.

位置決め部５２は、例えば、第２分割ケース２６の側壁部２６ａに対して直立して所定高さで形成された軸体からなり、後述するブラケット３８に形成された位置決め孔５８（図３Ｃ参照）に挿通されることで、前記ブラケット３８が前記第２取付部４０に対して位置決めされる。 The positioning portion 52 is formed of, for example, a shaft body that is upright with respect to the side wall portion 26a of the second divided case 26 and is formed at a predetermined height, and a positioning hole 58 formed in a bracket 38 described later (see FIG. 3C). The bracket 38 is positioned with respect to the second mounting portion 40 by being inserted into the second mounting portion 40.

第２ボス部５４は、例えば、第２分割ケース２６の側壁部２６ａに対して所定高さで形成され、その中央部には第２係合孔９６が形成され、第２分割ケース２６の側壁部２６ａまで貫通している。また、第２ボス部５４の外側には、第２分割ケース２６の側壁部２６ａに対して立設した第２壁部６０との間に第２開口部５６が形成される。なお、この第２開口部５６は、第２分割ケース２６に第２ボス部５４を成形する際に型抜きの都合で形成されるものであり、何らかの機能をさせる目的で設けられるものではない。 The second boss portion 54 is formed, for example, at a predetermined height with respect to the side wall portion 26 a of the second divided case 26, and a second engagement hole 96 is formed in the center portion thereof. It penetrates to the part 26a. Further, a second opening 56 is formed on the outer side of the second boss portion 54 between the second boss portion 54 and the second wall portion 60 erected with respect to the side wall portion 26 a of the second divided case 26. The second opening 56 is formed for the purpose of die cutting when the second boss portion 54 is formed in the second divided case 26, and is not provided for the purpose of performing some function.

エバポレータ１８は、図１に示されるように、例えば、第１分割ケース２４及び第２分割ケース２６に跨るように送風機１６の下方（矢印Ｃ２方向）に設けられ、該空調ケース１４の高さ方向に対して所定角度だけ傾斜するように配置される。そして、エバポレータ１８には、図示しない複数のチューブを通じて冷媒が循環されており、前記チューブの間に設けられたフィンに空気が通過することで、該空気と前記冷媒との熱交換がなされ、冷却された空気がエバポレータ１８の下流側へと供給される。 As shown in FIG. 1, the evaporator 18 is provided below the blower 16 (in the direction of the arrow C <b> 2) so as to straddle the first divided case 24 and the second divided case 26. It is arrange | positioned so that only a predetermined angle may incline with respect to. A refrigerant is circulated through the evaporator 18 through a plurality of tubes (not shown). When air passes through fins provided between the tubes, heat exchange between the air and the refrigerant is performed. The air thus supplied is supplied to the downstream side of the evaporator 18.

ヒータコア２０は、例えば、第１分割ケース２４及び第２分割ケース２６の内部においてエバポレータ１８より車両前方側（矢印Ａ方向）となる下流側に設けられ、該エバポレータ１８と同様に、該空調ケース１４の高さ方向に対して所定角度だけ傾斜して配置される。また、ヒータコア２０における下端部及び上端部にはそれぞれタンク部６２ａ、６２ｂが設けられ、該タンク部６２ａ、６２ｂにはそれぞれ温水の供給・排出される一組の配管６４ａ、６４ｂが接続される。 The heater core 20 is provided, for example, in the first divided case 24 and the second divided case 26 on the downstream side, which is the front side of the vehicle (in the direction of arrow A) from the evaporator 18, and similarly to the evaporator 18, the air conditioning case 14. Are inclined at a predetermined angle with respect to the height direction. Further, tank portions 62a and 62b are respectively provided at the lower end portion and the upper end portion of the heater core 20, and a pair of pipes 64a and 64b through which hot water is supplied and discharged are connected to the tank portions 62a and 62b, respectively.

この配管６４ａ、６４ｂは、内部に温水が循環するように設けられ、図１に示されるように、タンク部６２ａ、６２ｂの端部にそれぞれ接続され互いに略平行な状態で車両前方側（矢印Ａ、Ｂ方向）に向かって直線状に延在している。また、配管６４ａ、６４ｂは、図示しない第２分割ケース２６の孔部を通じて外部へと突出しており、前記第２分割ケース２６の側壁部２６ａに装着されたヒータカバー３２によって覆われる。なお、配管６４ａ、６４ｂの端部は、それぞれ図示しない内燃機関に対して接続される。 The pipes 64a and 64b are provided so that hot water circulates therein, and are connected to the ends of the tank parts 62a and 62b, respectively, as shown in FIG. , B direction). The pipes 64 a and 64 b protrude to the outside through a hole portion of the second divided case 26 (not shown), and are covered by the heater cover 32 attached to the side wall portion 26 a of the second divided case 26. Note that the ends of the pipes 64a and 64b are connected to an internal combustion engine (not shown).

そして、ヒータコア２０には、一方の配管６４ａからタンク部６２ａへと供給された温水が図示しない複数のチューブを通じて他方のタンク部６２ｂへと流通した後、他方の配管６４ｂを通じて排出されることで循環しており、前記チューブの間に設けられたフィンに空気が通過することで、該空気と前記温水との熱交換がなされ、加熱された空気がヒータコア２０の下流側へと供給される。 Then, the hot water supplied from one pipe 64a to the tank part 62a flows to the other tank part 62b through a plurality of tubes (not shown) and then discharged through the other pipe 64b to the heater core 20. When the air passes through the fins provided between the tubes, heat exchange between the air and the hot water is performed, and the heated air is supplied to the downstream side of the heater core 20.

このヒータカバー３２は、例えば、樹脂製材料から断面略三角形状に形成され、その内部に一組の配管６４ａ、６４ｂが収納され、幅広状となる一端部が車両前方側（矢印Ａ方向）となり、徐々に幅狭状となる他端部が車両後方側（矢印Ｂ方向）となるように配置される。そして、ヒータカバー３２の他端部には、空調ケース１４の第１取付部３４に対して固定される第１固定部６６が形成される。 The heater cover 32 is formed of, for example, a resin material and has a substantially triangular cross section. A pair of pipes 64a and 64b are housed inside the heater cover 32, and one end portion that is wide is the front side of the vehicle (in the direction of arrow A). The other end portion, which gradually becomes narrower, is arranged to be on the vehicle rear side (arrow B direction). A first fixing portion 66 that is fixed to the first mounting portion 34 of the air conditioning case 14 is formed at the other end portion of the heater cover 32.

この第１固定部６６は、図１〜図３Ｂに示されるように、ヒータカバー３２の他端部に対して車両後方側（矢印Ｂ方向）へと断面略矩形状に突出したベース部６８と、該ベース部６８に対して厚さ方向（図３Ａ中、矢印Ｄ１方向）に突出した膨出部７０と、前記ベース部６８の側面に対して拡幅するように延在した第１スカート部（カバー部）７２とを有する。 As shown in FIGS. 1 to 3B, the first fixing portion 66 includes a base portion 68 that protrudes in a substantially rectangular cross section toward the vehicle rear side (arrow B direction) with respect to the other end portion of the heater cover 32. A bulging portion 70 projecting in the thickness direction (in the direction of arrow D1 in FIG. 3A) with respect to the base portion 68, and a first skirt portion extending so as to widen with respect to the side surface of the base portion 68 ( Cover portion) 72.

膨出部７０は、図３Ａに示されるように、ベース部６８から離間する方向へと所定高さで膨出した中空状に形成され、その内部がベース部６８の内部と連通し、第２分割ケース２６に臨む前記ベース部６８の端部が開口した有底筒状に形成される。そして、膨出部７０の内部には断面円形状の挿入孔７４が形成され、前記挿入孔７４には空調ケース１４に形成された第１取付部３４の第１ボス部４２が挿入される。なお、挿入孔７４の直径は、第１ボス部４２の直径と略同等若しくは若干だけ大きく形成される。 As shown in FIG. 3A, the bulging portion 70 is formed in a hollow shape that bulges at a predetermined height in a direction away from the base portion 68, and the inside communicates with the inside of the base portion 68. The base portion 68 facing the split case 26 is formed in a bottomed cylindrical shape having an open end. An insertion hole 74 having a circular cross section is formed inside the bulging portion 70, and the first boss portion 42 of the first mounting portion 34 formed in the air conditioning case 14 is inserted into the insertion hole 74. The diameter of the insertion hole 74 is substantially the same as or slightly larger than the diameter of the first boss portion 42.

また、ベース部６８の底面は、図３Ａに示されるように、第１ボス部４２と第１爪部４４との間において第２分割ケース２６の側壁部２６ａに当接し、前記ベース部６８と第１スカート部７２との間に形成された断面長方形状の第１係合孔７６に第１爪部４４が挿入され係合される。詳細には、第１爪部４４の係止部４８が、第１係合孔７６の外縁部に係合されることで、前記第１爪部４４が前記ベース部６８に対して固定される。 3A, the bottom surface of the base portion 68 is in contact with the side wall portion 26a of the second divided case 26 between the first boss portion 42 and the first claw portion 44, and the base portion 68 The first claw portion 44 is inserted into and engaged with a first engagement hole 76 having a rectangular cross section formed between the first skirt portion 72 and the first skirt portion 72. Specifically, the first claw portion 44 is fixed to the base portion 68 by engaging the locking portion 48 of the first claw portion 44 with the outer edge portion of the first engagement hole 76. .

なお、第１係合孔７６は、図２Ａに示されるように、第１固定部６６の突出方向、すなわち、車両前後方向（矢印Ａ、Ｂ方向）に沿って長尺に形成される。 As shown in FIG. 2A, the first engagement hole 76 is formed to be long along the protruding direction of the first fixing portion 66, that is, the vehicle front-rear direction (arrow A and B direction).

さらに、第１固定部６６における第１スカート部７２の外縁部には、図２Ａ、図３Ａ及び図３Ｂに示されるように、膨出部７０の突出方向とは反対方向（図３Ａ中、矢印Ｄ２方向）に突出したリブ７８が形成され、該リブ７８は外縁部に沿って断面略Ｕ字状に形成される。そして、第１固定部６６が第１取付部３４に装着された際、リブ７８が第２分割ケース２６の第１壁部５０より外側となる位置で、該第１壁部５０を覆うように側壁部２６ａから所定間隔離間して配置される。この際、第１壁部５０は、リブ７８の内側となる第１スカート部７２の底面側に向かって突出し、該底面に対して若干の隙間を有した状態となるように配置されている。 Further, as shown in FIGS. 2A, 3A and 3B, an outer edge portion of the first skirt portion 72 in the first fixing portion 66 has a direction opposite to the protruding direction of the bulging portion 70 (in FIG. 3A, an arrow A rib 78 projecting in the direction (D2) is formed, and the rib 78 is formed in a substantially U-shaped cross section along the outer edge. And when the 1st fixing | fixed part 66 is mounted | worn with the 1st attaching part 34, it is so that the rib 78 may cover this 1st wall part 50 in the position which becomes the outer side from the 1st wall part 50 of the 2nd division | segmentation case 26. It arrange | positions at predetermined intervals from the side wall part 26a. At this time, the first wall portion 50 protrudes toward the bottom surface side of the first skirt portion 72 which is the inside of the rib 78, and is disposed so as to have a slight gap with respect to the bottom surface.

すなわち、第１取付部３４を構成する第１壁部（第１の壁部）５０と、第１固定部６６を構成する第１スカート部７２のリブ（第２の壁部）７８とが、第２分割ケース２６の側壁部２６ａに沿って互い違いとなるように交互に重なるように形成されたラビリンス構造となる。 That is, the first wall portion (first wall portion) 50 constituting the first attachment portion 34 and the rib (second wall portion) 78 of the first skirt portion 72 constituting the first fixing portion 66 are: The labyrinth structure is formed so as to be alternately overlapped along the side wall portion 26a of the second divided case 26.

また、第２分割ケース２６に開口した第１開口部４６は、第１固定部６６を装着することで第１スカート部７２によって覆われる。この第１スカート部７２の幅寸法は、第１開口部４６の幅寸法に対して大きく形成されているため、該第１スカート部７２によって前記第１開口部４６が全体的に覆われることとなる。 Further, the first opening 46 opened in the second divided case 26 is covered with the first skirt portion 72 by attaching the first fixing portion 66. Since the width dimension of the first skirt portion 72 is formed larger than the width dimension of the first opening portion 46, the first opening portion 46 is entirely covered by the first skirt portion 72. Become.

ダンパ機構２２は、図１に示されるように、エバポレータ１８とヒータコア２０との間に設けられるエアミックスダンパ８０と、送風口２８の送風状態を切り替える切替ダンパ（図示せず）とからなり、前記エアミックスダンパ８０は、例えば、湾曲したプレート状に形成され、空調ケース１４の幅方向に沿って設けられ、その両側部が前記空調ケース１４の内壁面に設けられたガイド手段（図示せず）に沿って案内される。そして、エアミックスダンパ８０の内壁面にはラックギアが形成され、空調ケース１４に軸支されたシャフト８２のピニオンギアが噛合される。 As shown in FIG. 1, the damper mechanism 22 includes an air mix damper 80 provided between the evaporator 18 and the heater core 20, and a switching damper (not shown) for switching the air blowing state of the air outlet 28. The air mix damper 80 is formed in, for example, a curved plate shape, is provided along the width direction of the air conditioning case 14, and guide means (not shown) provided on both inner side surfaces of the air conditioning case 14. Will be guided along. A rack gear is formed on the inner wall surface of the air mix damper 80, and the pinion gear of the shaft 82 that is pivotally supported by the air conditioning case 14 is engaged.

そして、図示しないアクチュエータの駆動作用下にシャフト８２が所定角度だけ回動し、それに伴って、エアミックスダンパ８０がガイド手段に沿って略水平方向にスライドすることで、エバポレータ１８によって冷却された空気（冷風）と、ヒータコア２０によって加熱された空気（温風）との混合比率を調整して下流側へと送風する。 Then, the shaft 82 is rotated by a predetermined angle under the driving action of an actuator (not shown), and the air mix damper 80 slides in a substantially horizontal direction along the guide means, thereby the air cooled by the evaporator 18. (Cool air) and the air (hot air) heated by the heater core 20 are adjusted, and the air is blown downstream.

リンク機構３６は、図１に示されるように、第２分割ケース２６の側壁部２６ａに設けられ、例えば、該側壁部２６ａに形成された第２取付部４０に固定されるブラケット３８を有し、前記ブラケット３８には、略円盤状に形成されたリンクプレート８４が回転自在に設けられると共に、該リンクプレート８４のリンク溝に係合され切替ダンパを駆動させる従動リンク８６が設けられる。 As shown in FIG. 1, the link mechanism 36 is provided on the side wall portion 26 a of the second divided case 26, and has, for example, a bracket 38 fixed to a second mounting portion 40 formed on the side wall portion 26 a. The bracket 38 is provided with a link plate 84 formed in a substantially disk shape so as to be rotatable, and a driven link 86 that is engaged with a link groove of the link plate 84 and drives a switching damper.

このブラケット３８は、図１及び図２Ｂに示されるように、例えば、樹脂製材料から板状に形成され、高さ方向（矢印Ｃ１、Ｃ２方向）に沿って所定長さを有し、その上端部、下端部及び中間部には、空調ケース１４の第２取付部４０に対して固定される第２固定部８８がそれぞれ形成される。そして、ブラケット３８は、複数の第２固定部８８を介して第２分割ケース２６の側壁部２６ａに固定される。 As shown in FIGS. 1 and 2B, the bracket 38 is formed, for example, in a plate shape from a resin material, and has a predetermined length along the height direction (arrow C1, C2 direction). A second fixing portion 88 that is fixed to the second mounting portion 40 of the air conditioning case 14 is formed in each of the portion, the lower end portion, and the intermediate portion. The bracket 38 is fixed to the side wall portion 26 a of the second split case 26 via a plurality of second fixing portions 88.

第２固定部８８は、図３Ｃに示されるように、ブラケット３８の延在方向（矢印Ｃ１、Ｃ２方向）に対して略直交するように突出した第２爪部９０と、該第２爪部９０に対してさらに外側に形成され第２分割ケース２６の側壁部２６ａ側に向かって折曲された第２スカート部９２とを有している。 As shown in FIG. 3C, the second fixing portion 88 includes a second claw portion 90 protruding so as to be substantially orthogonal to the extending direction of the bracket 38 (arrow C1, C2 direction), and the second claw portion. 90 and a second skirt portion 92 that is formed on the outer side with respect to 90 and bent toward the side wall portion 26 a side of the second divided case 26.

この第２爪部９０は、その先端に係止部９４を有し、前記第２爪部９０が第２取付部４０の第２係合孔９６に挿入され端部に係合されることで第２固定部８８が第２取付部４０に対して固定される。 The second claw portion 90 has a locking portion 94 at its tip, and the second claw portion 90 is inserted into the second engagement hole 96 of the second mounting portion 40 and engaged with the end portion. The second fixing part 88 is fixed to the second attachment part 40.

第２スカート部９２は、第２固定部８８が第２取付部４０に固定された際、第２開口部５６を覆うように形成されると共に、その外縁部が第２取付部４０に形成された第２壁部６０に対して外側となり、且つ、端部が側壁部２６ａに対して若干の隙間を有した状態で臨むように配置される。この際、第２壁部６０は、外縁部の内側となる第２スカート部９２の底面側に向かって突出し、該底面に対して若干の隙間を有した状態となるように配置されている。 The second skirt portion 92 is formed so as to cover the second opening 56 when the second fixing portion 88 is fixed to the second mounting portion 40, and an outer edge portion thereof is formed on the second mounting portion 40. Further, the second wall portion 60 is disposed outside the second wall portion 60 so that the end portion faces the side wall portion 26a with a slight gap. At this time, the second wall portion 60 protrudes toward the bottom surface side of the second skirt portion 92 inside the outer edge portion, and is arranged so as to have a slight gap with respect to the bottom surface.

すなわち、第２取付部４０を構成する第２壁部（第１の壁部）６０と、第２固定部８８を構成する第２スカート部９２の外縁部（第２の壁部）とが、第２分割ケース２６の側壁部２６ａに沿って互い違いとなるように交互に重なるように形成されたラビリンス構造となる。 That is, the second wall portion (first wall portion) 60 constituting the second mounting portion 40 and the outer edge portion (second wall portion) of the second skirt portion 92 constituting the second fixing portion 88 are: The labyrinth structure is formed so as to be alternately overlapped along the side wall portion 26a of the second divided case 26.

本発明の実施の形態に係る車両用空調装置１０は、基本的には以上のように構成されるものであり、次に空調ケース１４に対してヒータカバー３２及びブラケット３８を組み付ける場合について説明する。 The vehicle air conditioner 10 according to the embodiment of the present invention is basically configured as described above. Next, a case where the heater cover 32 and the bracket 38 are assembled to the air conditioning case 14 will be described. .

先ず、空調ケース１４の第２分割ケース２６に対してヒータカバー３２を組み付ける場合には、前記ヒータカバー３２の第１固定部６６を第２分割ケース２６の第１取付部３４に臨むように配置した後、第１ボス部４２を膨出部７０の挿入孔７４へ挿入し、同時に、第１爪部４４を第１係合孔７６に挿入する。そして、第１ボス部４２が挿入孔７４の端部に当接すると共に、第１爪部４４の係止部４８が第１係合孔７６を通じてベース部６８の端部に対して係合される。 First, when the heater cover 32 is assembled to the second divided case 26 of the air conditioning case 14, the first fixing portion 66 of the heater cover 32 is disposed so as to face the first mounting portion 34 of the second divided case 26. After that, the first boss portion 42 is inserted into the insertion hole 74 of the bulging portion 70, and at the same time, the first claw portion 44 is inserted into the first engagement hole 76. The first boss portion 42 abuts on the end portion of the insertion hole 74, and the locking portion 48 of the first claw portion 44 is engaged with the end portion of the base portion 68 through the first engagement hole 76. .

これにより、第１固定部６６は、図３Ａに示されるように、第１ボス部４２が膨出部７０の挿入孔７４に当接することで、さらなる第２分割ケース２６側（矢印Ｄ２方向）への変位が規制され、且つ、第１爪部４４の係合作用下に前記第２分割ケース２６から離間する方向（矢印Ｄ１方向）への変位も規制された固定状態となる。 As a result, as shown in FIG. 3A, the first fixing portion 66 has the first boss portion 42 in contact with the insertion hole 74 of the bulging portion 70, thereby further side of the second divided case 26 (in the direction of arrow D <b> 2). And the displacement in the direction away from the second divided case 26 (in the direction of the arrow D1) under the engaging action of the first claw 44 is also restricted.

なお、第１固定部６６は、第１ボス部４２に対して膨出部７０が挿入され、且つ、第１爪部４４が第１係合孔７６に係合されることで、第２分割ケース２６に対するヒータカバー３２の高さ方向（矢印Ｃ１、Ｃ２方向）及び幅方向（矢印Ｄ１、Ｄ２方向）に沿った相対的な変位も規制されている。 The first fixing portion 66 is divided into the second divided portion by inserting the bulging portion 70 with respect to the first boss portion 42 and engaging the first claw portion 44 with the first engagement hole 76. Relative displacement along the height direction (arrow C1, C2 direction) and width direction (arrow D1, D2 direction) of the heater cover 32 with respect to the case 26 is also restricted.

このように、ヒータカバー３２に設けられた第１固定部６６を空調ケース１４の側壁部２６ａに形成された第１取付部３４に対して係合させることで、前記ヒータカバー３２を複数のボルトで締結する場合と比較し、車両用空調装置１０を組み付ける際の組付工数を大幅に削減することが可能となり、しかも、ボルトを不要とすることで軽量化を図ることができる。 As described above, the first fixing portion 66 provided on the heater cover 32 is engaged with the first mounting portion 34 formed on the side wall portion 26 a of the air conditioning case 14, so that the heater cover 32 is connected to a plurality of bolts. Compared with the case where it fastens with, it becomes possible to reduce the assembly man-hour at the time of assembling the vehicle air conditioner 10, and also can achieve weight reduction by making a bolt unnecessary.

また、第１固定部６６の第１スカート部７２は、第１取付部３４の第１開口部４６を覆うと共に、そのリブ７８が第１壁部５０の外側に配置される。これにより、第１スカート部７２と第２分割ケース２６の側壁部２６ａとの間は、リブ７８と第１壁部５０とが互い違いに配置されたラビリンス構造となり、第１開口部４６から漏出した空気が、前記リブ７８と前記第１壁部５０との間を通じて空調ケース１４内から外部へと漏出してしまうことが防止される。 Further, the first skirt portion 72 of the first fixing portion 66 covers the first opening 46 of the first attachment portion 34, and the rib 78 is disposed outside the first wall portion 50. Thus, a labyrinth structure in which the ribs 78 and the first wall portions 50 are alternately arranged between the first skirt portion 72 and the side wall portion 26a of the second divided case 26 is formed and leaks from the first opening portion 46. Air is prevented from leaking from the inside of the air conditioning case 14 to the outside through between the rib 78 and the first wall portion 50.

さらに、上述したようにヒータカバー３２を第２分割ケース２６の側壁部２６ａに装着した際、図３Ａ及び図３Ｂに示されるように、該第２分割ケース２６の内部に第１爪部４４等の固定構造が突出してしまうことがなく、前記側壁部２６ａの内側が凹凸状となることがない。そのため、第２分割ケース２６の内部に形成される各通路１２に空気が流通する際の流路抵抗が生じることがなく、空気を所望の流量で円滑に流通させることができる。 Further, as described above, when the heater cover 32 is attached to the side wall portion 26a of the second divided case 26, as shown in FIGS. 3A and 3B, the first claw portion 44 and the like are provided inside the second divided case 26. The fixing structure does not protrude, and the inner side of the side wall portion 26a does not become uneven. Therefore, there is no flow resistance when air flows through each passage 12 formed inside the second divided case 26, and air can be smoothly circulated at a desired flow rate.

次に、空調ケース１４の第２分割ケース２６に対してリンク機構３６を保持可能なブラケット３８を組み付ける場合には、前記ブラケット３８における第２固定部８８が第２分割ケース２６における第２取付部４０にそれぞれ臨むように配置し、前記ブラケット３８の上端部に形成された第２固定部８８の位置決め孔５８に位置決め部５２を挿通させる。そして、各第２固定部８８を第２取付部４０側へと接近させ、図３Ｃに示されるように、第２爪部９０をそれぞれ第２係合孔９６に挿入すると共に、ブラケット３８を第２ボス部５４に当接させることで、前記第２爪部９０の係止部９４が前記第２ボス部５４の端部に係合される。これにより、第２固定部８８は、ブラケット３８が第２ボス部５４の端部に当接することで、さらなる第２分割ケース２６側（矢印Ｄ２方向）への変位が規制され、且つ、第２爪部９０の係合作用下に前記第２分割ケース２６から離間する方向（矢印Ｄ１方向）への変位も規制された固定状態となる。 Next, when the bracket 38 capable of holding the link mechanism 36 is assembled to the second divided case 26 of the air conditioning case 14, the second fixing portion 88 in the bracket 38 is the second attachment portion in the second divided case 26. The positioning portion 52 is inserted into the positioning hole 58 of the second fixing portion 88 formed on the upper end portion of the bracket 38. Then, each second fixing portion 88 is moved closer to the second mounting portion 40 side, and as shown in FIG. 3C, the second claw portions 90 are respectively inserted into the second engaging holes 96 and the bracket 38 is The abutment portion 94 of the second claw portion 90 is engaged with the end portion of the second boss portion 54 by contacting the two boss portions 54. As a result, the second fixing portion 88 is restricted from being displaced further toward the second divided case 26 (in the direction of the arrow D2) when the bracket 38 abuts against the end of the second boss portion 54, and the second fixing portion 88 is Under the engaging action of the claw portion 90, the displacement in the direction away from the second divided case 26 (arrow D1 direction) is also fixed.

このように、ブラケット３８に設けられた第２固定部８８を空調ケース１４の側壁部２６ａに形成された第２取付部４０に対して係合させることで、前記ブラケット３８を複数のボルトで締結する場合と比較し、車両用空調装置１０を組み付ける際の組付工数を大幅に削減することが可能となり、しかも、ボルトを不要とすることで軽量化を図ることができる。 In this manner, the bracket 38 is fastened with a plurality of bolts by engaging the second fixing portion 88 provided on the bracket 38 with the second mounting portion 40 formed on the side wall portion 26a of the air conditioning case 14. Compared with the case where it does, it becomes possible to reduce significantly the assembly man-hour at the time of assembling the air conditioner 10 for vehicles, and also can achieve weight reduction by making a bolt unnecessary.

また、第２固定部８８の第２スカート部９２は、第２取付部４０の第２開口部５６を覆うと共に、その外縁部が第２壁部６０の外側に配置される。これにより、第２スカート部９２と第２分割ケース２６の側壁部２６ａとの間は、外縁部と第２壁部６０とが互い違いに配置されたラビリンス構造となり、第２開口部５６から漏出した空気が、前記外縁部と前記第２壁部６０との間を通じて空調ケース１４内から外部へと漏出してしまうことが防止される。 Further, the second skirt portion 92 of the second fixing portion 88 covers the second opening 56 of the second attachment portion 40, and the outer edge portion thereof is disposed outside the second wall portion 60. As a result, a labyrinth structure in which the outer edge portion and the second wall portion 60 are alternately arranged is formed between the second skirt portion 92 and the side wall portion 26a of the second divided case 26, and leaked from the second opening portion 56. Air is prevented from leaking from the inside of the air conditioning case 14 to the outside through the space between the outer edge portion and the second wall portion 60.

さらに、上述したようにブラケット３８を第２分割ケース２６の側壁部２６ａに装着した際、該第２分割ケース２６の内部に第２爪部９０等の固定構造が突出してしまうことがなく、前記側壁部２６ａの内側が凹凸状となることがない。そのため、第２分割ケース２６の内部に形成される各通路１２に空気が流通する際の流路抵抗が生じることがなく、空気を所望の流量で円滑に流通させることができる。 Furthermore, when the bracket 38 is attached to the side wall portion 26a of the second divided case 26 as described above, the fixing structure such as the second claw portion 90 does not protrude inside the second divided case 26, The inner side of the side wall part 26a does not become uneven. Therefore, there is no flow resistance when air flows through each passage 12 formed inside the second divided case 26, and air can be smoothly circulated at a desired flow rate.

次に、上述したように組み付けられた車両用空調装置１０の作用について簡単に説明する。 Next, the operation of the vehicle air conditioner 10 assembled as described above will be briefly described.

先ず、図示しない乗員が、車両用空調装置１０の搭載された車両の車室内に配置された操作レバーを操作することで、該操作レバーの操作に応じて図示しないアクチュエータが駆動し、その駆動力の伝達されたシャフト８２が所定角度だけ回転することで、エアミックスダンパ８０が図示しないガイド手段による案内作用下に車両前方側又は後方側へと所定距離だけスライド変位する。 First, when an occupant (not shown) operates an operation lever disposed in a vehicle compartment of a vehicle on which the vehicle air conditioner 10 is mounted, an actuator (not shown) is driven according to the operation of the operation lever, and the driving force The shaft 82 to which the air is transmitted rotates by a predetermined angle, so that the air mix damper 80 slides and displaces by a predetermined distance toward the front side or the rear side of the vehicle under the guiding action by a guide means (not shown).

同時に、図示しないコントローラからの制御信号に基づき、送風機１６の駆動源が回転駆動し回転ファンが回転し、図示しない導入口から空調ケース１４内へと取り込まれた空気が前記送風機１６から送出される。そして、空気は、通路１２を通じて下方へと流通し、エバポレータ１８を通過することで冷却された後、ヒータコア２０を通過した空気と混合されることで所望の温度へと調温され、送風口２８を通じて車室内へと送風される。 At the same time, based on a control signal from a controller (not shown), the drive source of the blower 16 is rotationally driven to rotate the rotary fan, and the air taken into the air conditioning case 14 from an inlet (not shown) is sent out from the blower 16. . The air flows downward through the passage 12, is cooled by passing through the evaporator 18, is then mixed with the air that has passed through the heater core 20, is adjusted to a desired temperature, and is blown through the air outlet 28. The air is blown into the passenger compartment.

以上のように、本実施の形態では、車両用空調装置１０を構成する空調ケース１４において、その第２分割ケース２６の側壁部２６ａにヒータカバー３２を装着するための第１取付部３４と、リンク機構３６を保持するためのブラケット３８を装着するための第２取付部４０とを形成し、前記ヒータカバー３２の第１固定部６６に前記第１取付部３４の第１爪部４４と係合させることで固定し、前記ブラケット３８の第２爪部９０を前記第２取付部４０に係合させることで固定することができる。 As described above, in the present embodiment, in the air conditioning case 14 constituting the vehicle air conditioner 10, the first mounting portion 34 for mounting the heater cover 32 on the side wall portion 26a of the second divided case 26, A second mounting portion 40 for mounting a bracket 38 for holding the link mechanism 36 is formed, and the first fixing portion 66 of the heater cover 32 is engaged with the first claw portion 44 of the first mounting portion 34. The second claw portion 90 of the bracket 38 can be fixed by being engaged with the second mounting portion 40.

その結果、ボルト等を用いることなく、空調ケース１４に対して確実且つ容易にヒータカバー３２及びブラケット３８を固定でき、しかも、空調ケース１４を成形する際に型抜きの都合で形成された第１及び第２取付部３４、４０の第１及び第２開口部４６、５６を、第１及び第２固定部６６、８８の第１及び第２スカート部７２、９２によって確実に閉塞できるため、空調ケース１４内の空気が第１及び第２開口部４６、５６を通じて外部へと漏出してしまうことが防止される。 As a result, the heater cover 32 and the bracket 38 can be securely and easily fixed to the air conditioning case 14 without using bolts or the like, and the first formed for convenience of mold removal when the air conditioning case 14 is molded. Since the first and second openings 46 and 56 of the second mounting portions 34 and 40 can be reliably closed by the first and second skirt portions 72 and 92 of the first and second fixing portions 66 and 88, air conditioning The air in the case 14 is prevented from leaking outside through the first and second openings 46 and 56.

また同時に、空調ケース１４内の空気が第１及び第２開口部４６、５６を通じて外部へと漏出する際に生じる異音を防止することもできる At the same time, it is possible to prevent noise generated when the air in the air conditioning case 14 leaks to the outside through the first and second openings 46 and 56.

さらに、第１取付部３４側に第１爪部４４を設け、第２分割ケース２６の側壁部２６ａから外側に向かって突出するように形成することで、該第１爪部４４を介してヒータカバー３２を装着した際に、前記第１爪部４４が前記第２分割ケース２６の内部に突出することがなく、該内部を流通する空気の流路抵抗となることがない。そのため、空調ケース１４内を流通する空気を所望の流量で円滑に流通させることができる。このように、空調ケース１４側に第１爪部４４を形成した場合、上述したように成形時における型抜きの都合で第１開口部４６が形成されるが、第１固定部６６の第１スカート部７２で閉塞可能とすることで、空気の漏出を防止しつつ、空気の流路抵抗をなくして円滑に流通させることが可能となる。 Furthermore, the first claw portion 44 is provided on the first attachment portion 34 side, and is formed so as to protrude outward from the side wall portion 26a of the second divided case 26, whereby the heater is interposed via the first claw portion 44. When the cover 32 is mounted, the first claw portion 44 does not protrude into the second divided case 26 and does not become a flow resistance of the air flowing through the inside. Therefore, the air flowing through the air conditioning case 14 can be smoothly distributed at a desired flow rate. Thus, when the 1st nail | claw part 44 is formed in the air-conditioning case 14 side, as mentioned above, although the 1st opening part 46 is formed for the convenience of die cutting at the time of shaping | molding, By allowing the skirt portion 72 to close, it is possible to smoothly circulate without air flow resistance while preventing air leakage.

一方、空調ケース１４に設けられる第１取付部３４、ヒータカバー３２に設けられる第１固定部６６は、上述した構成に限定されるものではなく、例えば、図４Ａ及び図４Ｂに示される第１取付部１００及び第１固定部１０２のような構成としてもよい。 On the other hand, the 1st attaching part 34 provided in the air-conditioning case 14 and the 1st fixing | fixed part 66 provided in the heater cover 32 are not limited to the structure mentioned above, For example, the 1st shown by FIG. 4A and FIG. 4B is shown. It is good also as a structure like the attaching part 100 and the 1st fixing | fixed part 102. FIG.

この第１取付部１００には、第２分割ケース２６の側壁部２６ａにおいて第１壁部５０から所定間隔離間した外側に、該第１壁部５０と略同一高さの離間壁１０４が形成される。この離間壁１０４は、第１壁部５０と同様に第１開口部４６側に向かって開口した断面略Ｕ字状に形成され、第１壁部５０の外側を取り囲むように形成される。すなわち、第２分割ケース２６の側壁部２６ａは、第１開口部４６から外側となる部位が第１壁部５０及び離間壁１０４によって凹凸状となるように形成される。 In the first mounting portion 100, a separation wall 104 having substantially the same height as the first wall portion 50 is formed on the outer side of the side wall portion 26 a of the second divided case 26 that is spaced apart from the first wall portion 50 by a predetermined distance. The The separation wall 104 is formed in a substantially U-shaped cross-section that opens toward the first opening 46 similarly to the first wall 50, and is formed so as to surround the outside of the first wall 50. That is, the side wall portion 26 a of the second divided case 26 is formed such that a portion that is on the outer side from the first opening 46 is uneven by the first wall portion 50 and the separation wall 104.

一方、第１固定部１０２には、第１スカート部７２のリブ７８の形成された外縁部からさらに外側へと延在した延長部１０６が形成される。延長部１０６は、第１スカート部７２の延在方向と同一方向となるように形成される。 On the other hand, the first fixing portion 102 is formed with an extension portion 106 that extends further outward from the outer edge portion where the rib 78 of the first skirt portion 72 is formed. The extension portion 106 is formed so as to be in the same direction as the extending direction of the first skirt portion 72.

そして、第１取付部１００に対して第１固定部１０２を組み付ける際、第１スカート部７２が第１壁部５０及び離間壁１０４の端部に臨むように配置されると共に、リブ７８が前記第１壁部５０と離間壁１０４との間に配置される。 And when the 1st fixing | fixed part 102 is assembled | attached with respect to the 1st attaching part 100, while arrange | positioning so that the 1st skirt part 72 may face the edge part of the 1st wall part 50 and the separation wall 104, the rib 78 is the said. It arrange | positions between the 1st wall part 50 and the separation | spacing wall 104. FIG.

これにより、第１固定部１０２のリブ７８と第１取付部１００における第１壁部５０及び離間壁１０４によってさらに複雑なラビリンス構造が構成され、前記第１固定部１０２と前記第１取付部１００との間の隙間を通じた空気の漏出をさらに好適に防止することが可能となる。なお、この第１固定部１０２及び第１取付部１００の構成でも、空調ケース１４内へ固定構造が突出してしまうことがないため、空気の流路抵抗が生じることがなく好適である。 Accordingly, a more complex labyrinth structure is configured by the rib 78 of the first fixing portion 102 and the first wall portion 50 and the separation wall 104 of the first attachment portion 100, and the first fixing portion 102 and the first attachment portion 100 are configured. It is possible to more suitably prevent air leakage through the gap between the two. Note that the structure of the first fixing portion 102 and the first mounting portion 100 is also preferable because the fixing structure does not protrude into the air conditioning case 14 and therefore air flow resistance does not occur.

また、上述した実施の形態では、空調ケース１４を構成する第２分割ケース２６の側壁部２６ａに第１及び第２取付部３４、４０を介してそれぞれヒータカバー３２、ブラケット３８を固定する場合について説明したが、前記ヒータカバー３２及びブラケット３８に限定されるものではなく、前記空調ケース１４の外壁部に装着される外装部材であれば特に限定されるものではない。 Moreover, in embodiment mentioned above, about the case where the heater cover 32 and the bracket 38 are each fixed to the side wall part 26a of the 2nd division | segmentation case 26 which comprises the air-conditioning case 14 via the 1st and 2nd attachment parts 34 and 40, respectively. Although described, the present invention is not limited to the heater cover 32 and the bracket 38, and is not particularly limited as long as it is an exterior member attached to the outer wall portion of the air conditioning case 14.

なお、本発明に係る車両用空調装置は、上述の実施の形態に限らず、本発明の要旨を逸脱することなく、種々の構成を採り得ることはもちろんである。 In addition, the vehicle air conditioner according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

１０…車両用空調装置１４…空調ケース
１８…エバポレータ２０…ヒータコア
２４…第１分割ケース２６…第２分割ケース
２６ａ…側壁部３２…ヒータカバー
３４、１００…第１取付部３６…リンク機構
３８…ブラケット４０…第２取付部
４４…第１爪部４６…第１開口部
５６…第２開口部６４ａ、６４ｂ…配管
６６、１０２…第１固定部７２…第１スカート部
７８…リブ８８…第２固定部
９０…第２爪部９２…第２スカート部
１０４…離間壁１０６…延長部 DESCRIPTION OF SYMBOLS 10 ... Vehicle air conditioner 14 ... Air conditioning case 18 ... Evaporator 20 ... Heater core 24 ... 1st division | segmentation case 26 ... 2nd division | segmentation case 26a ... Side wall part 32 ... Heater cover 34,100 ... 1st attachment part 36 ... Link mechanism 38 ... Bracket 40 ... second mounting portion 44 ... first claw portion 46 ... first opening 56 ... second opening 64a, 64b ... pipe 66, 102 ... first fixing portion 72 ... first skirt portion 78 ... rib 88 ... first 2 fixed part 90 ... 2nd nail | claw part 92 ... 2nd skirt part 104 ... separation wall 106 ... extension part

Claims

In a vehicle air conditioner comprising an air conditioning case having a flow path through which air flows and an air blowing port for blowing air into the vehicle interior, and a heat exchanger provided inside the air conditioning case for cooling and heating the air,
A mounting portion for fixing an exterior member is provided on the outer wall surface of the air conditioning case, and the exterior member is provided with a cover portion that covers a hole opening in the mounting portion. An air conditioner for vehicles having a claw part which mutually engages an exterior member, and is formed so that a crevice provided between the attachment part and the exterior member may have a labyrinth structure.

The vehicle air conditioner according to claim 1,
The claw portion projects outward at the attachment portion, and the claw portion is engaged with the exterior member.

The vehicle air conditioner according to claim 1 or 2,
The labyrinth structure includes a first wall portion formed on the attachment portion and erected toward the exterior member side;
A second wall portion formed on the exterior member and erected toward the mounting portion side;
Have
The vehicle air conditioner characterized in that the first wall portion and the second wall portion are arranged offset with respect to the extending direction of the outer wall surface.

In the vehicle air conditioner according to claim 3,
Two or more of the first wall part and the second wall part are provided, and the vehicle air conditioner is provided.

In the vehicle air conditioner according to any one of claims 1 to 4,
The vehicular air conditioner, wherein the exterior member is a cover member that covers a pipe connected to the heat exchanger.

In the vehicle air conditioner according to any one of claims 1 to 4,
The vehicle air conditioner, wherein the exterior member is a bracket that holds a link mechanism that operates a damper that switches a flow state of air in the air conditioning case.