JP2796088B2 - Automotive heater unit - Google Patents

Automotive heater unit

Info

Publication number
JP2796088B2
JP2796088B2 JP61138620A JP13862086A JP2796088B2 JP 2796088 B2 JP2796088 B2 JP 2796088B2 JP 61138620 A JP61138620 A JP 61138620A JP 13862086 A JP13862086 A JP 13862086A JP 2796088 B2 JP2796088 B2 JP 2796088B2
Authority
JP
Japan
Prior art keywords
air
outlet
mixing chamber
damper
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP61138620A
Other languages
Japanese (ja)
Other versions
JPS62295715A (en
Inventor
信之 山本
雄一郎 荒神
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Matsuda KK
Panasonic Holdings Corp
Original Assignee
Matsuda KK
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsuda KK, Matsushita Electric Industrial Co Ltd filed Critical Matsuda KK
Priority to JP61138620A priority Critical patent/JP2796088B2/en
Publication of JPS62295715A publication Critical patent/JPS62295715A/en
Application granted granted Critical
Publication of JP2796088B2 publication Critical patent/JP2796088B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H1/00064—Air flow details of HVAC devices for sending air streams of different temperatures into the passenger compartment
    • B60H1/00071—Air flow details of HVAC devices for sending air streams of different temperatures into the passenger compartment the air passing only one heat exchanger

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は冷風と温風の混合割合により吹出温度を調節
する自動車用ヒータユニットに関するものである。 従来の技術 従来、この種の自動車用ヒータユニットは、第４図に
示すように、ヒータ入口室２に入った空気（冷風）を温
度調節用ダンパ３により分岐させてその一部を熱交換器
４へ流入して温風にし、温風通路５を経て混合室６へ流
し、他の空気は、ヒータ入口室２より混合室６へ流入し
て先の温風と混合される構成であった。さらに前記混合
空気は、切替ダンパ７により上部吹出口９と下部吹出口
10へ分岐される。 かかる構成は例えば、実開昭60−51112号公報に示さ
れている。 発明が解決しようとする問題点 しかし、このような構成では上部と下部のそれぞれの
吹出口から同時に風が吹き出すモード（以下バイレベル
モードと称す。）時に、冷風矢印Ａが下部吹出口10へ流
れ込み、逆に温風矢印Ｂが上部吹出口９の方へ流れ込ん
で上部吹出口９と下部吹出口10の温度差が小さくなり、
エアミックス性能が悪くなる等の問題点を有していた。 これを第５図で説明する。第５図は、吹出空気の温度
コントロール特性図で、縦軸は吹出空気温度Ｔを示し、
横軸は温度調節用ダンパ３の開度θを示している。 またCOLDは最大冷房時、HOTは最大暖房時を示し、TC
は上部吹出口９の吹出空気温度、THは下部吹出口10の吹
出温度を示す。 従来の構成では第５図に示すように上部吹出口９の吹
出空気温度TCと下部吹出口10の吹出空気温度THの温度差
が小さいため、車室内の空気分布として車室上部の空気
温度と車室下部の空気温度の差が小さく頭寒足熱型の快
適な空調を得ることが困難である問題点を有していた。 また、非常に寒い時に車室内を暖めるために温度調節
用ダンパ３の開度を50％以上、即ちHOT側にするほど上
部吹出口と下部吹出口の温度差が小さくなり同時に上部
吹出口の吹出空気温度が高くなるため乗員の顔面、上半
身に直接温風が当たり非常に不快となる問題点を有して
いた。 また、各吹出口の風量割合を第６図で説明する。縦軸
は全風量に対する各吹出口の風量割合を示し、横軸は温
度調節用ダンパ３の開度θを示している。Ｃは上部吹出
口９の、Ｈは下部吹出口10の風量割合である。従来の構
成では温度調節用ダンパ３の開度を50％以上、即ち上部
吹出口９の吹出空気温度TCが高くなっても上部吹出口９
の風量はあまり減少しない。このため上部吹出口９から
吹出す温風が直接乗員の顔面、上半身に当たり非常に不
快となる問題点を有していた。 問題点を解決するための手段 上記問題点を解決する本発明の技術的手段は、固定端
を混合室内部の上部吹出口とこの上部吹出口に比し下方
に配置される下部吹出口の間に配設し、上部吹出口と下
部吹出口とに風を分配する切替ダンパと、上部吹出口方
向で且つ、バイレベルモード時の切替ダンパの可動先端
部方向へ温風と冷風の接触位置に沿って混合室内に設け
られたエアガイダーと、切替ダンパの可動先端部に下部
方向へ屈曲して形成され、かつ、バイレベルモード時に
は、エアガイダーと切替ダンパとともに混合室を上部混
合室と下部混合室に分割するエアガイド部を設け、本体
内部に流入して温度調節用ダンパにより分岐された冷風
を上部混合室を介して上部吹出口へ導く冷風通路と、温
度調節用ダンパによって分岐され、熱交換器により加熱
された温風を下部混合室へ連絡するとともに、下部吹出
口の上方にてエアガイダーとエアガイド部および切替ダ
ンパにより温風の流路を屈曲させて下部吹出口に導く温
風通路を構成したものである。 作用 上記手段により、上部吹出口のみに配風するモード
（以下ベントモードと称す。）および下部吹出口のみに
配風するモード（以下ヒートモードと称す。）のときの
通風路を確保するとともに、バイレベルモード時の温風
と冷風の通風路を充分に確保することができる。 またバイレベルモード時には、エアガイダーとエアガ
イド部、切替ダンパにて混合室を上部混合室と下部混合
室に分割して、冷風通路と屈曲した温風通路を形成し、
冷風の主流と温風の主流を分割することができる。 このため、上部吹出空気温度と下部吹出空気温度との
温度差を大きくするとともに、温風通路を充分確保する
ことにより、下部吹出口の風量を確保することができる
ので、温度調節ダンパがHOT側になるほど上部吹出口の
風量割合を大きく減少させることができる。 実 施 例 以下本発明の一実施例を第１図〜第３図で説明する。 まず第１図により自動車用ヒータユニットの構成を説
明する。同図において１は自動車用ヒータユニット本
体、２はヒータ入口室、３は冷温風の混合割合を制御す
る温度調節用ダンパ、４は冷風（ヒータ流入空気）を加
熱する熱交換器、５は温風通路、６は冷風と温風を混合
する混合室、７は上下の吹出風の振分けを行なう切替ダ
ンパ、7Aは切替ダンパ７端部に設けられたエアガイド部
で、切替ダンパ７に対して屈曲して形成され、バイレベ
ルモード時にはエアガイダー12の先端側へ延びて、エア
ガイダー12と略一直線状を形成する。８は上部吹出口へ
の配風を開閉するベントタンパ、９は上部吹出口、10は
下部吹出口、11はデフロスト吹出口、12は切替ダンパ７
がｂ位置にある方向へ先端が傾斜しているエアガイダ
ー、ａは下部吹出口10のみに配風するヒートモードの切
替ダンパ７の位置、ｃは上部吹出口９のみへ配風するベ
ンドモードの切替ダンパ７の位置、ｂは上部吹出口９と
下部吹出口10へ同時に配風するバイレベルモードの切替
ダンパ７の位置である。この時にエアガイダー12と切替
ダンパ７に形成されたエアガイド部7Aは略一直線状とな
る。しかもエアガイダー12とエアガイド部7Aの隙間は狭
いので、混合室６をほぼ２分割した構成となる。矢印Ａ
（斜線入り）は冷風の流れを示し、矢印Ｂは温風の流れ
を示している。 次にこの一実施例の構成における作用を説明する。 ヒータ入口室２へ入った冷風は温度調節用ダンパ３に
よって分岐され、その一部は熱交換器４を通過して熱交
換されて温風となり、温風通路５を経て混合室へ流入す
る。その他の冷風はヒータ入口室２から混合室６へ流入
して前記温風と混合される。 バイレベルモード時に切替ダンパ７は位置ｂにある。
前記混合室６には前記切替ダンパ７の方向へ傾斜したエ
アガイダー12を設けるとともに、前記エアガイダー12と
略一直線状を形成するエアガイド部7Aを切替ダンパ７端
部に屈曲して形成し、エアガイダー12とエアガイド部7A
の隙間を狭くして、混合室６をほぼ２分割するとともに
温風の通風路と冷風の通風路を確保している。このため
冷風矢印Ａの主流はエアガイダー12、切替ダンパ７に沿
って上部吹出口９から吹出し、温風矢印Ｂの主流は下部
吹出口から吹出される。 この時のバイレベルモード時の温度コントロール特性
を第２図で説明する。縦軸が吹出空気温度を示し、横軸
は温度調節用ダンパ３の開度θを示す。 上述したように温風と冷風があまり混合せずに冷風の
主流は上部吹出口９へ、温風の主流は下部吹出口10へ配
風されるので温度調節用ダンパ開度θが小さい時には上
部吹出口９の吹出空気温度TCはほとんど温度上昇がな
く、逆に下部吹出口10は冷風とあまり混合されない。そ
の結果吹出空気温度THは急上昇し、上下温度差TH−TCは
大きくなる。 温度調節用ダンパ開度θが大きい時には上部吹出口９
の吹出空気はあまり温風と混合されないので従来例に比
べて吹出空気温度TCの上昇は小さくなり、上下温度差TH
−TCは大きくなる。 従がって温度調節用ダンパが開度θのどの位置にあっ
ても上下温度差TH−TCは大きくなり車室内の空気分布は
車室上部の空気温度は低く、車室下部の空気温度は高
い、頭寒足熱型の快適な空調を得ることができる。 また上下吹出口の風量割合特性を第３図で説明する。
縦軸は全風量に対する各吹出口の風量割合を示す。横軸
は温度調節用ダンパ開度θを示す。上述したようにエア
ガイダー12と切替ダンパ７に沿って冷風の主流は上部吹
出口９へ流れ、温風の主流は下部吹出口10へ流れる。温
度調節用ダンパ３の開度θが小さい時には熱交換器４を
通過する風は少ないので上部吹出口９の風量割合Ｃは多
く、逆に下部吹出口10の風量割合Ｈは少ない。温度調節
用ダンパ３の開度θが大きい時には、熱交換器４を通過
する風が多くなるので上部吹出口９の風量割合Ｃは少な
く、逆に下部吹出口10の風量割合Ｈは多くなる。 従がって非常に寒い時に車室内を暖めるため、温度調
節用ダンパ開度θを50％以上にしても上部吹出口９から
吹出される風量は少なく、従来より低い吹出し空気温度
となり下部吹出口10から吹出される風量は多く、従来よ
り高い吹出し温度となるので快適な空調を得ることがで
きる。 発明の効果 以上述べたように本発明は、ヒートモードおよびベン
トモード時の通風路を妨げることなく、バイレベルモー
ド時には、温風と冷風の通風路を充分に確保するととも
に、エアガイダーとエアガイド部、切替ダンパにて混合
室を上部混合室と下部混合室に分割して、冷風通路と屈
曲した温風通路を形成する。 このため、冷風の主流と温風の主流が混ざることなく
分割されるので、バイレベルモード時には、上部吹出空
気と下部吹出空気の吹出空気温度差を大きくするととも
に、温風通路を充分確保することにより、下部吹出口の
風量を確保することができる。 すなわち、上部吹出空気および下部吹出空気の風量が
充分確保された車室内の空調ができるので、車室内の空
気温度分布は頭寒足熱型の快適な空調状態となる。 また外気が涼しい春や秋のシーズンでは暖房能力はあ
まり必要としないので温度調節用ダンパ開度θは小さい
所で使用される事が多いが、この時には上部吹出口から
吹出す風の吹出温度は低く、風量割合は多くなる。外気
が非常に寒い冬のシーズンでは暖房性能を必要とするの
で温度調節用ダンパ開度θは大きい所で使用される事が
多いが、この時には、下部吹出口から吹出す風の吹出空
気温度は高く、風量割合も多くなる。このため快適な空
調を得ることができる実用範囲が拡大される。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heater unit for an automobile, which controls an outlet temperature by a mixing ratio of cold air and hot air. 2. Description of the Related Art Conventionally, as shown in FIG. 4, a vehicle heater unit of this type is configured such that air (cold air) entering a heater inlet chamber 2 is branched by a temperature control damper 3 and a part thereof is subjected to a heat exchanger. 4, the hot air flows into the mixing chamber 6 through the hot air passage 5, and the other air flows into the mixing chamber 6 from the heater inlet chamber 2 and is mixed with the previous hot air. . Further, the mixed air is supplied to an upper outlet 9 and a lower outlet by a switching damper 7.
Branched to 10. Such a configuration is disclosed, for example, in Japanese Utility Model Laid-Open No. 51112/1985. Problems to be Solved by the Invention However, in such a configuration, the cool air arrow A flows into the lower outlet 10 in a mode in which air is simultaneously blown from the upper and lower outlets (hereinafter, referred to as a bi-level mode). On the contrary, the hot air arrow B flows toward the upper outlet 9 and the temperature difference between the upper outlet 9 and the lower outlet 10 becomes smaller,
There were problems such as poor air mix performance. This will be described with reference to FIG. FIG. 5 is a temperature control characteristic diagram of the blowing air, and the vertical axis indicates the blowing air temperature T;
The horizontal axis indicates the opening degree θ of the temperature adjusting damper 3. COLD indicates maximum cooling, HOT indicates maximum heating, and T C
The outlet air temperature, T H of the upper outlet 9 shows the outlet temperature of the lower outlet 10. Since the conventional configuration smaller temperature difference between the outlet air temperature T H of the outlet air temperature T C and the lower outlet 10 of the upper outlet 9 as shown in FIG. 5, cabin top of air as the air distribution in the passenger compartment There was a problem that the difference between the temperature and the air temperature in the lower part of the cabin was so small that it was difficult to obtain comfortable air conditioning of the type with cold head and feet. Also, in order to warm the cabin when the temperature is extremely cold, the temperature difference between the upper outlet and the lower outlet becomes smaller as the opening degree of the temperature control damper 3 becomes 50% or more, that is, toward the HOT side. Since the air temperature is high, the face and upper body of the occupant are directly hit by the hot air, which is very uncomfortable. In addition, the flow rate of each air outlet will be described with reference to FIG. The vertical axis indicates the ratio of the air volume at each outlet to the total air volume, and the horizontal axis indicates the opening degree θ of the temperature control damper 3. C is the air volume ratio of the upper outlet 9, and H is the air volume ratio of the lower outlet 10. The opening degree of the temperature control damper 3 50% or more in the conventional structure, i.e. be outlet air temperature T C of the upper outlet 9 is increased the upper outlet 9
Does not decrease much. Therefore, there is a problem that the warm air blown out from the upper outlet 9 directly hits the occupant's face and upper body and is very uncomfortable. Means for Solving the Problems The technical means of the present invention for solving the above problems is that a fixed end is provided between the upper outlet in the mixing chamber and the lower outlet disposed below the upper outlet. And a switching damper for distributing wind to the upper outlet and the lower outlet, and a contact position of hot air and cold air in the direction of the upper outlet and toward the movable tip of the switching damper in the bilevel mode. The air guider provided in the mixing chamber along the lower end of the movable damper of the switching damper is formed to bend downward, and in the bi-level mode, the mixing chamber together with the air guider and the switching damper is connected to the upper mixing chamber and the lower mixing chamber. An air guide section is provided for splitting, a cold air passage that flows into the inside of the main body and guides cold air branched by the temperature control damper to the upper outlet through the upper mixing chamber, and a heat exchanger branched by the temperature control damper. To The hot air that has been heated is communicated to the lower mixing chamber, and a hot air passage is formed above the lower outlet by bending the hot air flow path by the air guider, air guide section, and switching damper to the lower outlet. It was done. According to the above-described means, ventilation paths are secured in a mode in which air is distributed only to the upper outlet (hereinafter, referred to as a vent mode) and a mode in which air is distributed only to the lower outlet (hereinafter, referred to as a heat mode). In the bi-level mode, it is possible to sufficiently secure a hot air passage and a cold air passage. Also, in the bi-level mode, the mixing chamber is divided into an upper mixing chamber and a lower mixing chamber by an air guider, an air guide unit, and a switching damper, and a cold air passage and a bent hot air passage are formed.
The main stream of cold air and the main stream of warm air can be divided. For this reason, the temperature difference between the upper outlet air temperature and the lower outlet air temperature is increased, and the air volume at the lower outlet can be ensured by sufficiently securing the hot air passage. , The air volume ratio at the upper outlet can be greatly reduced. Embodiment An embodiment of the present invention will be described below with reference to FIGS. First, the configuration of the heater unit for an automobile will be described with reference to FIG. In the figure, 1 is a heater unit body for an automobile, 2 is a heater inlet chamber, 3 is a damper for temperature adjustment for controlling a mixing ratio of cold and hot air, 4 is a heat exchanger for heating cold air (air flowing into the heater), and 5 is a heat exchanger. An air passage, 6 is a mixing chamber for mixing cold air and hot air, 7 is a switching damper for distributing upper and lower blown air, and 7A is an air guide provided at an end of the switching damper 7. The air guider 12 is bent and extends toward the distal end of the air guider 12 in the bilevel mode to form a substantially straight line with the air guider 12. 8 is a vent tamper for opening and closing air distribution to the upper outlet, 9 is an upper outlet, 10 is a lower outlet, 11 is a defrost outlet, and 12 is a switching damper 7.
Is an air guider whose tip is inclined in the direction of position b, a is the position of the heat mode switching damper 7 that distributes air only to the lower outlet 10, and c is the bend mode switching that distributes air only to the upper outlet 9. The position b of the damper 7 is the position of the switching damper 7 in the bi-level mode for distributing air to the upper outlet 9 and the lower outlet 10 simultaneously. At this time, the air guider 7 and the air guide portion 7A formed on the switching damper 7 are substantially linear. Moreover, since the gap between the air guider 12 and the air guide portion 7A is narrow, the mixing chamber 6 is configured to be substantially divided into two. Arrow A
(Shaded) indicates the flow of cold air, and arrow B indicates the flow of warm air. Next, the operation of the configuration of the embodiment will be described. The cold air that has entered the heater inlet chamber 2 is branched by the temperature adjusting damper 3, and a part of the cold air passes through the heat exchanger 4, undergoes heat exchange to become hot air, and flows into the mixing chamber via the hot air passage 5. Other cold air flows into the mixing chamber 6 from the heater inlet chamber 2 and is mixed with the warm air. In the bi-level mode, the switching damper 7 is at the position b.
The mixing chamber 6 is provided with an air guider 12 inclined in the direction of the switching damper 7, and an air guide portion 7A that forms a substantially straight line with the air guider 12 is formed by bending the end of the switching damper 7. And air guide section 7A
Is narrowed, the mixing chamber 6 is almost divided into two, and a ventilation path for warm air and a ventilation path for cool air are secured. Therefore, the main stream of the cool air arrow A is blown out from the upper outlet 9 along the air guider 12 and the switching damper 7, and the main stream of the warm air arrow B is blown out from the lower outlet. The temperature control characteristic in the bilevel mode at this time will be described with reference to FIG. The vertical axis indicates the blown air temperature, and the horizontal axis indicates the opening degree θ of the temperature adjusting damper 3. As described above, the main flow of the cool air is distributed to the upper outlet 9 and the main flow of the warm air is distributed to the lower outlet 10 without much mixing of the warm air and the cool air. outlet air temperature T C is almost no temperature rise of the air outlet 9, the lower outlet 10 in the reverse is not so much mixed with cold air. As a result the outlet air temperature T H is soared, vertical temperature difference T H -T C increases. When the temperature control damper opening θ is large, the upper outlet 9
Is less mixed with the warm air, so that the rise of the blown air temperature T C is smaller than in the conventional example, and the vertical temperature difference T H
−T C increases. Therefore, regardless of the position of the temperature control damper at the opening θ, the vertical temperature difference T H −T C becomes large and the air distribution in the vehicle interior is such that the air temperature in the upper part of the vehicle interior is low and the air distribution in the lower part of the vehicle interior is The temperature is high, you can get comfortable air conditioning of the head cold foot heat type. FIG. 3 shows the air volume ratio characteristics of the upper and lower outlets.
The vertical axis indicates the ratio of the air volume at each outlet to the total air volume. The horizontal axis shows the damper opening θ for temperature adjustment. As described above, the main flow of the cool air flows to the upper outlet 9 and the main flow of the warm air flows to the lower outlet 10 along the air guider 12 and the switching damper 7. When the opening degree θ of the temperature control damper 3 is small, the amount of air flowing through the heat exchanger 4 is small, so the air volume ratio C of the upper outlet 9 is large, and conversely, the air volume ratio H of the lower outlet 10 is small. When the opening degree θ of the temperature adjusting damper 3 is large, the amount of air passing through the heat exchanger 4 increases, so that the air volume ratio C of the upper outlet 9 is small, and conversely, the air volume ratio H of the lower outlet 10 increases. Therefore, even when the temperature control damper opening θ is set to 50% or more, the amount of air blown out from the upper outlet 9 is small, so that the temperature of the blown air is lower than in the conventional case, and the lower outlet has a lower temperature. The amount of air blown out from 10 is large, and the blowout temperature is higher than before, so that comfortable air conditioning can be obtained. Effect of the Invention As described above, the present invention ensures a sufficient ventilation path for hot air and cold air in the bi-level mode without obstructing the ventilation path in the heat mode and the vent mode, and provides the air guider and the air guide section. The mixing chamber is divided into an upper mixing chamber and a lower mixing chamber by a switching damper, and a cold air passage and a bent hot air passage are formed. For this reason, the main stream of the cool air and the main stream of the hot air are divided without being mixed.In the bi-level mode, the difference between the blown air temperature between the upper blow air and the lower blow air is increased, and the warm air passage is sufficiently secured. Thereby, the air volume of the lower outlet can be secured. In other words, since air conditioning in the vehicle interior can be performed with a sufficient amount of air blown from the upper and lower blow-off air, the air temperature distribution in the vehicle interior is in a comfortable air-conditioning state of a head-and-foot type. Also, in spring and autumn season when the outside air is cool, the heating capacity is not so much needed, so the temperature control damper opening θ is often used in a small place, but at this time the blowing temperature of the wind blown from the upper outlet is Low, high air flow rate. In winter season when the outside air is very cold, heating performance is required, so the temperature control damper opening θ is often used in a large place, but at this time, the air temperature of the air blown out from the lower outlet is It is high and the air volume ratio is high. Therefore, the practical range in which comfortable air conditioning can be obtained is expanded.

【図面の簡単な説明】 第１図は本発明の一実施例における自動車用ヒータユニ
ットの側断面図、第２図は同ヒータユニットによる温度
コントロール特性図、第３図は同ヒータユニットにおけ
る風量割合特性図、第４図は従来例を示す自動車用ヒー
タユニットの側断面図、第５図は従来例の温度コントロ
ール特性図、第６図は従来例の風量割合特性図である。 １……自動車用ヒータユニット本体、３……温度調節用
ダンパ、４……熱交換器、５……温風通路、６……混合
室、７……切替ダンパ、7A……エアガイド部、９……上
部吹出口、10……下部吹出口、12……エアガイダー。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view of an automobile heater unit according to an embodiment of the present invention, FIG. 2 is a temperature control characteristic diagram of the heater unit, and FIG. FIG. 4 is a side sectional view of a vehicle heater unit showing a conventional example, FIG. 5 is a temperature control characteristic diagram of a conventional example, and FIG. 6 is an air flow rate characteristic diagram of a conventional example. DESCRIPTION OF SYMBOLS 1 ... Heater unit body for vehicles, 3 ... Damper for temperature control, 4 ... Heat exchanger, 5 ... Hot air passage, 6 ... Mixing chamber, 7 ... Switching damper, 7A ... Air guide section, 9 ... upper outlet, 10 ... lower outlet, 12 ... air guider.

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B60H 1/00 B60H 1/12──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) B60H 1/00 B60H 1/12

Claims (1)

(57)【特許請求の範囲】 １．本体内部に熱交換器と、この熱交換器の上流に配設
され、前記本体内部に流入した冷風を前記熱交換器によ
り加熱される温風と前記熱交換器をバイパスする冷風と
に分岐する温度調節用ダンパと、前記熱交換器の下流に
配設されるとともに前記温風と冷風を混合する混合室
と、この混合室の下流に上部吹出口とこの上部吹出口に
比し下方に配置される下部吹出口とを設け、固定端を前
記混合室内部の前記上部吹出口と下部吹出口の間に配設
し、前記上部吹出口と下部吹出口とに風を分配する切替
ダンパと、前記上部吹出口方向で且つ、バイレベルモー
ド時の前記切替ダンパの可動先端部方向へ前記温風と冷
風の接触位置に沿って前記混合室内に設けられたエアガ
イダーと、前記切替ダンパの可動先端部に前記下部方向
へ屈曲して形成され、かつ、バイレベルモード時には、
前記エアガイダーと前記切替ダンパとともに前記混合室
を上部混合室と下部混合室に分割するエアガイド部を設
け、前記本体内部に流入して前記温度調節用ダンパによ
り分岐された冷風を前記上部混合室を介して前記上部吹
出口へ導く冷風通路と、前記温度調節用ダンパによって
分岐され、前記熱交換器により加熱された温風を前記下
部混合室へ連絡するとともに、前記下部吹出口の上方に
て前記エアガイダーとエアガイド部および切替ダンパに
より前記温風の流路を屈曲させて前記下部吹出口に導く
温風通路を構成した自動車用ヒータユニット。(57) [Claims] A heat exchanger disposed inside the main body, and the cold air that is disposed upstream of the heat exchanger and flows into the main body, is branched into hot air heated by the heat exchanger and cold air that bypasses the heat exchanger. A temperature control damper, a mixing chamber disposed downstream of the heat exchanger and mixing the hot air and the cold air, an upper outlet downstream of the mixing chamber and a lower outlet than the upper outlet. A switching damper for disposing a fixed end between the upper outlet and the lower outlet in the mixing chamber, and distributing wind to the upper outlet and the lower outlet, An air guider provided in the mixing chamber along the contact position between the hot air and the cold air in the direction of the upper outlet and toward the movable tip of the switching damper in the bi-level mode; and the movable tip of the switching damper. Is formed to bend in the lower direction, , The bi-level mode,
An air guide section is provided which divides the mixing chamber into an upper mixing chamber and a lower mixing chamber together with the air guider and the switching damper, and cool air flowing into the main body and branched by the temperature adjusting damper is supplied to the upper mixing chamber. A cold air passage that leads to the upper outlet through the air outlet, and is branched by the temperature adjusting damper, and communicates the hot air heated by the heat exchanger to the lower mixing chamber, and the upper part of the lower outlet above the lower outlet. An automotive heater unit comprising a hot air passage configured to bend the flow path of the hot air by an air guider, an air guide portion, and a switching damper to guide the flow to the lower outlet.
JP61138620A 1986-06-13 1986-06-13 Automotive heater unit Expired - Lifetime JP2796088B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61138620A JP2796088B2 (en) 1986-06-13 1986-06-13 Automotive heater unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61138620A JP2796088B2 (en) 1986-06-13 1986-06-13 Automotive heater unit

Publications (2)

Publication Number Publication Date
JPS62295715A JPS62295715A (en) 1987-12-23
JP2796088B2 true JP2796088B2 (en) 1998-09-10

Family

ID=15226326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61138620A Expired - Lifetime JP2796088B2 (en) 1986-06-13 1986-06-13 Automotive heater unit

Country Status (1)

Country Link
JP (1) JP2796088B2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262511U (en) * 1985-10-11 1987-04-18

Also Published As

Publication number Publication date
JPS62295715A (en) 1987-12-23

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