JPS6393613A - Ventilation on start of air conditioner for automobile - Google Patents

Abstract

PURPOSE:To prevent the blowing of odor, etc., into a pair of air passages into a car compartment by permitting the ventilation in a pair of air passages by driving a blower in one air passage in the state where a blowing port opening/ closing dampers in a pair of air passages are closed and a communication port opening/closing damper is opened. CONSTITUTION:When an air conditioner is started by an air conditioning switch 9a on an operating panel 9, the blower 31 in the first air passage 21 is operated by a control circuit 10, and the blowing port opening/closing dampers 41 and 42 in the both air passages 21 and 22 are closed, and a communication port opening/closing damper 12 is opened. The inside/outside air selecting damper 81 in the first air passage 21 is switched to the inside air communication state in which an inside air taking-in port 8b is opened, and the inside/outside air selecting damper 82 in the second air passage 22 is switched to the outside air communication state in which an outside air taking-in port 8c is opened. Therefore, the air in the car compartment is introduced into the second air passage 22 from the first air passage 21 through a communication port 11 by the blower 31, and discharged outside through a blower 32 in stop state, thus discharging the staying hot air and odor in the both air passages 21 and 22.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、車室内の各別の区域への送風を行う互に独立
した１対の通風路を備える自動車用空調装置において、
始動時に臭気や熱気が車室内に吹出されるのを防止する
ための換気方法に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention provides an air conditioner for an automobile that includes a pair of mutually independent ventilation passages that blow air to different areas in a vehicle interior.
This invention relates to a ventilation method for preventing odor and hot air from being blown into a vehicle interior during startup.

（従来の技術） 従来、単一の送風機からの空気を共通の通風路を介して
車室内の各区域に分配送風するようにした空調装置にお
いて、実開昭５８−４８５１０号公報や実開昭５８−６
０５１３号公報に見られるように、通風路の下流側の吹
出口開閉ダクトの上流部分に該通風路を外気に開放する
排気口と、該排気口を開閉する排気ダンパとを設け、空
調装置の始動時に吹出口開閉ダンノξを閉成すると共に
排気ダンパを開成し、送風機から該通風路に介設した熱
交換ユニットを通過して送風される空気を該排気口から
外気に排出し、この換気作用によシ該通風路内の滞留熱
気や臭気の車室内への吹出を防止するようにしたものは
知られる。(Prior art) Conventionally, in an air conditioner that distributes air from a single blower to each area of a vehicle interior through a common ventilation path, the methods disclosed in Utility Model Application Publication No. 58-48510 and Utility Model Application Publication No. 58-48510, Showa 58-6
As seen in Publication No. 0513, an exhaust port that opens the ventilation path to the outside air and an exhaust damper that opens and closes the exhaust port are provided in the upstream part of the air outlet opening/closing duct on the downstream side of the ventilation path, and an exhaust damper that opens and closes the exhaust port is provided. At startup, the air outlet opening/closing device ξ is closed and the exhaust damper is opened, and the air blown from the blower passes through the heat exchange unit installed in the ventilation path and is discharged to the outside from the exhaust port. It is known that the function prevents the hot air and odor accumulated in the ventilation passage from blowing out into the passenger compartment.

又、特公昭５５−１６８４２号公報や特開昭５８−２０
４９９７号公報に見られるように、車室内の各別の区域
、例えば運転席側と助手席側とへの送風を行う独立した
１対の通風路を備え、該内通風路に夫々上流側の送ａｍ
と、下流側の吹出口開閉ダンパとを設けて、運転席側と
助手席側の乗員が夫々の好みに合った空調フィーリング
を得られるようにしたものも知られている。Also, Japanese Patent Publication No. 55-16842 and Japanese Unexamined Patent Publication No. 58-20
As seen in Publication No. 4997, a pair of independent ventilation passages are provided for blowing air to different areas in the vehicle interior, for example, the driver's seat side and the passenger seat side. sending am
It is also known that the air conditioner is provided with a damper for opening and closing the air outlet on the downstream side, so that the occupants on the driver's seat and the passenger's seat can obtain an air conditioning feeling that suits their individual tastes.

（発明が解決しようとする問題点） ところで、上記した後者の従来技術に前者の従来技術を
適用し、各通風路に夫々排気口と排気ダンノソとを設け
て、始動時の各通風路の換気を行うようにすることは考
えられるが、これでは各通風路に各別の排気ダンパが必
要となって部品点数が増し、高価となる。(Problem to be Solved by the Invention) By the way, the former conventional technique is applied to the latter conventional technique described above, and each ventilation passage is provided with an exhaust port and an exhaust vent, respectively, so that the ventilation of each ventilation passage at the time of startup is improved. It is conceivable to do this, but this would require a separate exhaust damper for each ventilation path, increasing the number of parts and making it expensive.

本発明は、かかる問題点を解決すべく、各別の排気ダン
パを用いることなく始動時に１対の通風路を共に換気し
得るようにした換気方法を提供することをその目的とす
る。SUMMARY OF THE INVENTION In order to solve this problem, an object of the present invention is to provide a ventilation method that allows a pair of ventilation passages to be ventilated together at the time of startup without using separate exhaust dampers.

（問題点を解決するための手段） 本発明は、上記目的を達成すべく、車室内の各別の区域
への送風を行う互に独立した１対の通風路を備え、該内
通風路に夫々上流側の送風機と、下流側の吹出口開閉ダ
ンパとを設けて成る自動車用空調装置において、該内通
風路を連通ずる連通口と、該連通口を開閉する連通口開
閉ダンパとを設け、空調装置の始動時に、該内通風路の
吹出口開閉ダンパを共に閉成すると共に該連通ロ開閉ダ
ンノ臂を開成し、一方の通風路の送風機を駆動して、該
送風機からの空気を該一方の通風路と該連通口と他方の
通風路と該他方の通風路の送風機とを介して外気に排出
するようにしたことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention includes a pair of mutually independent ventilation passages for blowing air to different areas in the vehicle interior, An air conditioner for an automobile comprising an upstream side blower and a downstream side outlet opening/closing damper, which includes a communication opening communicating the internal air passage, and a communication opening/closing damper opening/closing the communication opening, When the air conditioner is started, the blower outlet opening/closing dampers of the inner ventilation passage are both closed, the communication hole opening/closing arm is opened, the blower of one ventilation passage is driven, and the air from the blower is transferred to the other side. It is characterized in that the air is discharged to the outside air through the ventilation passage, the communication port, the other ventilation passage, and the blower of the other ventilation passage.

（作　用） 始動時、一方の通風路の上流側の送風機から該一方の通
風路の下流側に送風される空気流は連通口を介して他方
の通風路に導かれ、次いで該他方の通風路を下流側から
上流側の送風機に向って逆流し、該送風機を介して外気
に排出され、この空気流により核内通風路内の滞留熱気
や臭気の換気が行われる。(Function) At the time of startup, the air flow blown from the blower on the upstream side of one ventilation passage to the downstream side of said one ventilation passage is guided to the other ventilation passage through the communication port, and then the airflow of the other ventilation passage is The air flows backward through the passage from the downstream side toward the blower on the upstream side, and is discharged to the outside air via the blower, and this air flow ventilates the hot air and odor accumulated in the ventilation passage within the core.

（実施例） 図面を参照して、（１）は空調ユニットケースを示し、
核ケース（１）内に仕切部材（１ａ）によυ車室内の各
別の区域、例えば運転席側への送風を行う第１通風路（
２１）と、助手席側への送風を行う第２通風路（２２）
とを画成し、該内通風路（２１）（２２）に夫々上流側
の送風機（３１）　（３２）と、下流側の吹出口開閉ダ
ンパ（４１）　（４２）とを設け、更に該ケース（１）
内に、核間通風路（２１）　（２２）に跨らせて冷却用
熱交換器としてのエバポレータ（５）と、その下流側に
該内通風路（２１）　（２２）に部分的に跨らせてエン
ジン冷却水を循環させるヒータ（６）とを設けると共に
１該両通風路（２１）　（２２）の該エバポレータ（５
）と該ヒータ（６）との中間部分に夫々エアミックスダ
ンパ（７１）　（７２）を設け、該各ダンノぞ（７１）
　（７２）の開度調節によシ該ヒータ（６）で再加熱す
る空気量と該ヒータ（６）をバイパスさせる空気量との
割合を変化させて吹田空気温度を調節するようにした。(Example) Referring to the drawings, (1) shows an air conditioning unit case,
Inside the core case (1), there is a first ventilation duct (1a) that blows air to different areas of the vehicle interior, for example, to the driver's seat side, by means of a partition member (1a).
21) and a second ventilation duct (22) that blows air to the passenger seat side.
The internal ventilation passages (21, 22) are provided with upstream blowers (31, 32) and downstream outlet opening/closing dampers (41, 42), respectively, and the case (1)
Inside, there is an evaporator (5) as a cooling heat exchanger that spans the internuclear ventilation passages (21) (22), and an evaporator (5) as a cooling heat exchanger that partially spans the inner ventilation passages (21) (22) on the downstream side thereof. The evaporator (5) of both the ventilation passages (21) (22) is provided with a heater (6) for circulating engine cooling water.
) and the heater (6) are provided with air mix dampers (71) (72), respectively, and each damper (71)
By adjusting the opening of (72), the Suita air temperature is adjusted by changing the ratio between the amount of air reheated by the heater (6) and the amount of air bypassed by the heater (6).

前記両送風機（３１）　（３２）は、各別のモータ（３
ａ）で駆動されるシロッコファンで構成されるもので、
該各送風機（３１）　（３２）の吸込側を夫々アクチュ
エータ（８ａ）によシ作動される内外気切換ダン／’　
（８１）　（８２）を介して車室内に連通ずる内気取入
口（８ｂ）と外気取入口（８Ｃ）とに選択的に接続する
ようにし、又該各モータ（３ａ）の駆動回路（３ｂ）に
空調スイッチ（９ａ）や運転席側と助手席側の風量調節
摘み（９ｂ）　（９ｂ）等を有する操作盤（９）からの
信号を制御回路Ｃ１Ｇを介して入力し、常時は該各駆動
回路（３ｂ）から該各モータ（３ａ）に設定風量に応じ
た電圧を印加して、該各送風機（３１）　（３２）を作
動させるようにした。Both the blowers (31) and (32) are powered by separate motors (3
It consists of a sirocco fan driven by a),
An internal/external air switching device operated by an actuator (8a) on the suction side of each of the blowers (31) and (32), respectively.
(81) The drive circuit (3b) of each motor (3a) is selectively connected to the inside air intake (8b) and the outside air intake (8C) communicating with the interior of the vehicle via (82). Signals from the operation panel (9), which has an air conditioning switch (9a), air volume adjustment knobs (9b) on the driver's seat and passenger's seat, etc., are input to the control circuit C1G through the control circuit C1G. A voltage corresponding to the set air volume was applied from the circuit (3b) to each motor (3a) to operate each of the blowers (31) and (32).

又、前記ケース（１）内に、前記内通風路（２１）（２
２）を吹出口開閉ダンパ（４１）　（４２）とヒータ（
６）との中間部分で連通する連通口ｅｌｌ）と、該連通
口αυを開閉する連通口開閉ダンパ０とを設け、該ダン
パ（１カと、前記吹出口開閉ダンノ”　（４１）　（４
２）と、前記内外気切換ダンパ（８１）　（８２）とを
夫々そのアクチュエータ（４ａ）　（８ａ）　（１２ａ
）への制御回路−からの信号で作ｍさせるようにした。Further, in the case (1), the inner ventilation passage (21) (2
2) with the air outlet opening/closing damper (41) (42) and the heater (
A communication port opening/closing damper 0 for opening and closing the communication port αυ is provided, and a communication port opening/closing damper 0 for opening and closing the communication port αυ is provided.
2) and the inside/outside air switching dampers (81) (82), respectively, with their actuators (4a) (8a) (12a).
) is operated by a signal from the control circuit.

ここで、操作盤（９）の空調スイッチ（９ａ）によυ空
調装置を始動させるときは、制御回路００により両通風
路（２１）　＜２２）の一方、例えば第１通風路（２１
）の送風機（３１）を作動させると共に、両通風路（２
１）　（２２）の吹出口開閉ダンパ（４１）　（４２）
を閉成状態、連通口開閉ダンノξ０を開成状態とし、更
に第１通風路（２１）の内外気切換ダンパ（８１）を内
気取入口（８ｂ）を開く内気連通状態と、第２通風路（
２２）の内外気切換ダンノξ（８２）を外気取入口（８
ｃ）を開く外気連通状態とに切換えるもので、これによ
れば車室内空気が送風機（３１）によシ第１通風路（２
１）の上流側から下流側に送風され、次いで連通口αυ
から第２通風路（２２）に導かれて、該第２通風路（２
２）を下流側から上流側に逆流し、その上流側の停止状
態の送風機（３２）を介して外気に排出され、該両通風
路（２１）　（２２）内の滞留熱気や臭気の換気が行わ
れる。Here, when starting the υ air conditioner using the air conditioning switch (9a) of the operation panel (9), the control circuit 00 activates one of the two ventilation paths (21) <22), for example, the first ventilation path (21).
) and operate the blower (31) of both ventilation passages (2).
1) (22) Air outlet opening/closing damper (41) (42)
is in the closed state, the communication port is in the open state, the inside/outside air switching damper (81) of the first ventilation path (21) is in the inside air communication state where the inside air intake port (8b) is opened, and the second ventilation path (
22), connect the outside air switch Danno ξ (82) to the outside air intake (8
c) to open the outside air communication state, and according to this, the air inside the vehicle is transferred to the first ventilation path (2) by the blower (31).
1) Air is blown from the upstream side to the downstream side, and then through the communication port αυ
to the second ventilation path (22), and the second ventilation path (22)
2) flows backwards from the downstream side to the upstream side and is discharged to the outside air via the stopped blower (32) on the upstream side, and the hot air and odors accumulated in the two ventilation channels (21) and (22) are ventilated. It will be done.

そして、第１通風路（２１）のエバポレータ（５）の下
流側の空気温度を温度センサ０３１１で検出し、空気温
度の所定温度への低下で連通口開閉ダン、。Then, the temperature of the air downstream of the evaporator (5) in the first ventilation path (21) is detected by the temperature sensor 0311, and the communication port is opened/closed when the air temperature falls to a predetermined temperature.

αのを閉成し、送風機（３１）　（３２）、吹出口開閉
ダンパ（４１）　（４２）、内外気切換ダンノぐ（８１
）　（８２）を通常の状態で作動させ、車室内の空調を
行うようにした。α is closed, the blower (31) (32), the outlet opening/closing damper (41) (42), and the inside/outside air switching damper (81) are closed.
) (82) was operated under normal conditions to air condition the vehicle interior.

尚、始動時一方の送風機（３１）によシ車室内空気を吸
込むのは、炎天下放置時の高温の車室内空気を車室外に
排気して空調負荷の軽減を図るためであるが、内外気切
換ダンノξ（８１）を外気連通状態として外気を吸込む
ようにしても良い。The reason why the air inside the vehicle is sucked into one of the blowers (31) during startup is to reduce the air conditioning load by exhausting the high-temperature air inside the vehicle outside the vehicle when left in the hot sun. The switching device ξ (81) may be placed in an outside air communication state to suck in outside air.

又、両送風機（３１）　（３２）が軸流ファンである場
合は、始動時に一方を正転、他方を逆転させて、一方の
送風機（３１）による送風と、他方の送風機（３２）に
よる吸出しとを行い、両通風路（２１）　（２２）の換
気を促進することも可能である。In addition, if both blowers (31) and (32) are axial fans, one is rotated forward and the other is rotated in reverse at startup, so that one blower (31) blows air and the other blower (32) sucks air. It is also possible to promote ventilation of both ventilation paths (21) and (22).

（発明の効果） 以上の如く本発明によるときは、始動時に１対の通風路
を共に換気できて、該内通風路内の滞留熱気や臭気の車
室内への吹出を防出でき、而も換気用に設けるダンノぐ
は両通風路の連通口を開閉する単一のダンパで足り、各
通風路に各別の排気ダンパを設けるものに比し部品点数
が削減されて安価に得られる効果を有する。(Effects of the Invention) As described above, according to the present invention, a pair of ventilation passages can be ventilated together at the time of startup, and hot air and odor accumulated in the internal ventilation passage can be prevented from blowing out into the vehicle interior. A single damper that opens and closes the communication ports of both ventilation channels is sufficient for ventilation, reducing the number of parts and reducing costs compared to installing separate exhaust dampers in each ventilation channel. have

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明を適用した空調装置の１例の線図である。 The drawing is a diagram of an example of an air conditioner to which the present invention is applied.

Claims (1)

【特許請求の範囲】[Claims] 車室内の各別の区域への送風を行う互に独立した１対の
通風路を備え、該両通風路に夫々上流側の送風機と、下
流側の吹出口開閉ダンパとを設けて成る自動車用空調装
置において、該両通風路を連通する連通口と、該連通口
を開閉する連通口開閉ダンパとを設け、空調装置の始動
時に、該両通風路の吹出口開閉ダンパを共に閉成すると
共に該連通口開閉ダンパを開成し、一方の通風路の送風
機を駆動して、該送風機からの空気を該一方の通風路と
該連通口と他方の通風路と該他方の通風路の送風機とを
介して外気に排出するようにしたことを特徴とする自動
車用空調装置の始動時における換気方法。For automobiles, comprising a pair of mutually independent ventilation passages that blow air to different areas in the vehicle interior, and each of the ventilation passages is provided with an upstream blower and a downstream outlet opening/closing damper. The air conditioner is provided with a communication port that communicates the two ventilation paths, and a communication port opening/closing damper that opens and closes the communication port, and when the air conditioner is started, the outlet opening/closing dampers of both the ventilation paths are both closed. The communication opening/closing damper is opened, the blower in one ventilation path is driven, and the air from the blower is transferred between the one ventilation path, the communication port, the other ventilation path, and the blower in the other ventilation path. A ventilation method at the time of starting an air conditioner for an automobile, characterized in that the air is discharged to the outside air through the air conditioner.