【０００１】
【発明の属する技術分野】
本発明は、例えば自動車やオフィス用椅子など、環境温度が高温であったり、長時間着座する場合においても、快適な着座感を得ることができる空調座席装置に関するものである。
【０００２】
【従来の技術】
従来のこの種の空調座席装置としては特公平４−２７８４３に示すようなものが開示されている。すなわち、図８に示すようにシート本体の人体背面部が当接する部分に相当する部分の表皮クロス２を通して外気を強制的に吸気する空気袋をシート本体に内蔵し、且つ空気袋３が吸気した外気を除湿乾燥して空気袋３を通して人体背面部に排気する冷却除湿器４と加熱乾燥器５からなる除湿乾燥装置６をヘッドレストに内蔵して除湿乾燥装置６と空気袋３を吸気通気路７、排気通気路８で連通させた構成になっている。
【０００３】
上記構成において、人体背面の外気（３２℃、湿度８０％）は表皮クロスを通して空気袋３に吸気され、吸気通気路７を通して冷却除湿器４に入り冷却除湿（結露）された（１５℃、１００％）空気となり、さらに加熱乾燥器５に送られ加熱乾燥された（３０℃、５０％）空気となって、排気通気路８を通して空気袋３に入り、表皮クロスから人体背面部に向けて吹出させ、冷却風による体温の奪われを防止しつつ蒸れ発生を防止する。
【０００４】
しかし、上記従来の構成では、除湿において冷却除湿器で除湿を行うため、結露水を流すための排水管が必要になり自動車用本体に特別な加工を必要であり、また移動可能なオフィス用椅子としては簡単に使用できない。
【０００５】
本発明は上記課題を解決するもので、車内の室温が高くても人体の体感温度が低く感じられる、結露水の処理が不必要な空調座席装置の実現を目的としたものである。
【０００６】
【課題を解決するための手段】
前記従来の課題を解決するために、本発明の空調座席装置は、表皮に空気を噴出する噴出口を持った座席本体と、圧縮機と、水受部に溜まった水を蒸発させるよう水受部を加熱する加熱部を持ったフィンチューブ型の第１熱交換器と、膨張弁と、送風された空気中の水蒸気を結露させる結露面を持ったフィンチューブ型の第２熱交換器と、第２熱交換器で結露した水を水受部に流す送水管とからなる空調手段と、前記第２熱交換器に室内空気を送るシロッコファン等の送風機と、前記第２熱交換器で結露後の乾燥空気を噴出口に導く通風路を持った構成としたものである。
【０００７】
上記構成により、送風機および、空調手段を駆動することにより、圧縮機で圧縮された冷媒は第１熱交換器発熱し、第２熱交換器で吸熱するので、第２熱交換器の結露面が空気の露点以下に冷却され室内空気中の水蒸気は結露し、除湿される。除湿後の乾燥空気は、通風路に導かれ表皮の噴出口から吹き出し、人体背側面を流れる。その際体表面の汗を気化させることで気化熱をうばい人体に冷涼間を与えるとともに、ムレ感を防止する。また、第２熱交換器の結露面に結露した水は送水管をつたって第２熱交換器の下部に設けられた水受部に流れ、水受部に溜まった水は第１熱交換器の加熱部で加熱され、水蒸気となって室内に放出される。
【０００８】
【発明の実施の形態】
本発明の請求項１に係る空調座席装置は、表皮に空気を噴出する噴出口を持った座席本体と、圧縮機と、水受部に溜まった水を蒸発させるよう水受部を加熱する加熱部を持ったフィンチューブ型の第１熱交換器と、膨張弁と、送風された空気中の水蒸気を結露させる結露面を持ったフィンチューブ型の第２熱交換器と、第２熱交換器で結露した水を水受部に流す送水管とからなる空調手段と、前記第２熱交換器に室内空気を送るシロッコファン等の送風機と、前記第２熱交換器で結露後の乾燥空気を噴出口に導く通風路を持った構成としたものである。上記構成により、送風機および、空調手段を駆動することにより、圧縮機で圧縮された冷媒は第１熱交換器で発熱し、第２熱交換器で吸熱するので、第２熱交換器の結露面が空気の露点以下に冷却され室内空気中の水蒸気は結露し、除湿される。除湿後の乾燥空気は、通風路に導かれ表皮の噴出口から吹き出し、人体背側面を流れる。その際体表面の汗を気化させることで気化熱をうばい人体に冷涼間を与えるとともに、ムレ感を防止する。また、第２熱交換器の結露面に結露した水は送水管をつたって第２熱交換器の下部に設けられた水受部に流れ、水受部に溜まった水は第１熱交換器の加熱部で加熱され、水蒸気となって室内に放出される。したがって車内の室温が高くても人体の体感温度が低く感じられる、結露水の処理が必要ない空調座席装置が実現できる。
【０００９】
本発明の請求項２に係る空調座席装置は、表皮に空気を噴出する噴出口を持った座席本体と、熱電素子と、熱電素子の高温接点の熱で水受部に溜まった水を蒸発させる加熱部を持った第１熱交換器と、熱電素子の低温接点の熱で水分を結露させる結露面を持った第２熱交換器と、第２熱交換器で結露した水を水受部に流す送水管とからなる空調手段と、前記第２熱交換器に室内空気を送るシロッコファン等の送風機と、前記第２熱交換器で結露後の乾燥空気を噴出口に導く通風路を持った構成としたものである。上記構成により、送風機および、空調手段を駆動することにより、熱電素子により第１熱交換器が加熱され、第２熱交換器が冷却されるので、第２熱交換器の結露面が空気の露点以下となり、室内空気中の水蒸気は結露し、除湿される。除湿後の乾燥空気は、通風路に導かれ表皮の噴出口から吹き出し、人体背側面を流れる。その際体表面の汗を気化させることで気化熱をうばい人体に冷涼間を与えるとともに、ムレ感を防止する。また、第２熱交換器の結露面に結露した水は送水管をつたって第２熱交換器の下部に設けられた水受部に流れ、水受部に溜まった水は第１熱交換器の加熱部で加熱され、水蒸気となって室内に放出される。したがって車内の室温が高くても人体の体感温度が低く感じられる、結露水の処理が必要ない空調座席装置が実現できる。
【００１０】
本発明の請求項３に係る空調座席装置は、請求項１ないし請求項２記載の空調座席装置において、水受部に多孔体を設置した構成としたものである。上記構成において、雨天時の駐車直後の始動等、室内空気の絶対湿度が一時的に高い場合、水受部に流入する水が多く、第１熱交換器の加熱部での蒸発が間に合わないが、水受部の多孔体に毛細管現象で付着し、座席に振動が加わっても水受部から水があふれることが無い。
【００１１】
本発明の請求項４に係る空調座席装置は、請求項１又は請求項２記載の空調座席装置において、水受部に酢酸ビニル−アクリル酸メチル共重合体のケン化物やカルボキシルメチルセルロース等の高分子水分吸収体を設置した構成としたものである。上記構成において、雨天時の駐車直後の始動等、室内空気の絶対湿度が一時的に高い場合、水受部に流入する水が多く、第１熱交換器の加熱部での蒸発が間に合わないが、水受部の高分子水分吸収体の分子の親水基に水分子が捕らえられ、座席に振動が加わっても水受部から水があふれることが無い。
【００１２】
本発明の請求項５に係る空調座席装置は、請求項１又は４のいずれか１項に記載の空調座席装置において、第１熱交換器で蒸発しなかった水分を加熱、蒸発させるようシーズヒーター等の加熱手段を設置した構成としたものである。上記構成により雨天時の駐車直後の始動等、室内空気の絶対湿度が一時的に高い場合、水受部に流入する水が多く、第１熱交換器の加熱部での蒸発が間に合わないときは、加熱手段を駆動する。加熱手段により、加熱手段で蒸発しきれなかった水は加熱され、水蒸気となって室内に放出され、結露水の処理が必要ない空調座席装置が実現できる。
【００１３】
【実施例】
以下、本発明の実施例について図面を用いて説明する。
【００１４】
（実施例１）
図１は本発明の実施例１の空調座席装置の断面図であり、図２は座部の除湿ユニット等の断面図である。３１は表皮３２に空気を噴出する噴出口３３を持った座席本体であり、座部３４、背部３５内部には、圧縮機３６と、水受部３７に溜まった水を蒸発させるよう前記水受部３７を加熱する加熱部３８を持ったフィンチューブ型の第１熱交換器３９と、膨張弁４０と、送風された空気中の水蒸気を結露させる結露面４１を持ったフィンチューブ型の第２熱交換器４２と、第２熱交換器４２で結露した水を水受部に流す送水管４３とからなる空調手段４４と、第２熱交換器に室内空気を送るシロッコファン等の送風機４５と、第２熱交換器で結露後の乾燥空気を噴出口に導く通風路４６を持った構成としたものである。
【００１５】
上記構成により、送風機４５および、空調手段４４を駆動することにより、圧縮機３６で圧縮された冷媒は第１熱交換器３８発熱し、第２熱交換器４２で吸熱するので、送風機４５で送風された車室内の空気（３５℃、５５％ＲＨ）は、露点以下に冷却された第２熱交換器４２の結露面４１で空気結露し、除湿される。除湿後の乾燥空気（３３℃、２０％ＲＨ）は、通風路４６に導かれ表皮の噴出口３３から吹き出し、人体背側面を流れる。その際体表面の汗を気化させることで気化熱をうばい人体に冷涼間を与えるとともに、ムレ感を防止する。
【００１６】
なお、図３に室温３５℃湿度５５％ＲＨの室内で、０．２ｍ３／分、湿度２０％の乾燥空気を噴出した場合の噴出温度と背部の冷涼感の官能実験結果を示す。図４で示されるように３９℃以下であれば、汗の気化熱で冷涼感を得ることができ、また噴出温度が低いほど冷涼感を得ることができる。また、第２熱交換器４２の結露面４１に結露した水は送水管４３をつたって第２熱交換器４２の下部に設けられた水受部３７に流れ、水受部３７に溜まった水は第１熱交換器３９の加熱部で加熱され、水蒸気となって冷却送風機４８によって室内に放出される。したがって車内の室温が高くても人体の体感温度が低く感じられる、結露水の処理が必要ない空調座席装置が実現できる。
【００１７】
なお、図４に示すように、水受部３７にセラミックファイバー等の多孔体５１を設置した構成としたものでは、雨天時の駐車直後の始動等、室内空気の絶対湿度が一時的に高い場合、水受部３７に流入する水が多く、第１熱交換器３９の加熱部３８での蒸発が間に合わない場合においても、水受部３７の多孔体に毛細管現象で付着し、座席に振動が加わっても水受部から水があふれることが無い。さらに多孔体表面に水が付着するので、蒸発表面積が増え、蒸発能力が向上する。
【００１８】
なお、図５に示すように、水受部３７に酢酸ビニル−アクリル酸メチル共重合体のケン化物やカルボキシルメチルセルロース等の高分子水分吸収体５２を設置した構成としたものでは、雨天時の駐車直後の始動等、室内空気の絶対湿度が一時的に高い場合、水受部３７に流入する水が多く、第１熱交換器３９の加熱部３８での蒸発が間に合わない場合においても、水受部３７の高分子水分吸収体の分子の親水基に水分子が捕らえられ、座席に振動が加わっても水受部から水があふれることが無い。
【００１９】
（実施例２）
図６は本発明の実施例２の空調座席装置の座部の除湿ユニット等の断面図である。３３はシート本体の表皮から空気を噴出する噴出口であり、熱電素子５３と、熱電素子５３の高温接点の熱で水受部に溜まった水を蒸発させる加熱部５４を持った第１熱交換器５５と、熱電素子の低温接点の熱で水分を結露させる結露面５６を持った第２熱交換器５７と、第２熱交換器で結露した水を水受部５８に流す送水管５９とからなる空調手段６０と、第２熱交換器に室内空気を送るシロッコファン等の送風機４５と、前記第２熱交換器で結露後の乾燥空気を噴出口に導く通風路４６を持った構成としたものである。
【００２０】
上記構成により、送風機４５および、空調手段６０を駆動することにより、熱電素子５３により第１熱交換器５５が加熱され、第２熱交換器５７が冷却されるので、第２熱交換器５７の結露面５６が空気の露点以下となり、室内空気中の水蒸気は結露し、除湿される。除湿後の乾燥空気は、通風路に導かれ表皮の噴出口から吹き出し、人体背側面を流れる。その際体表面の汗を気化させることで気化熱をうばい人体に冷涼間を与えるとともに、ムレ感を防止する。
【００２１】
また、第２熱交換器の結露面５６に結露した水は送水管５９をつたって第２熱交換器の下部に設けられた水受部５８に流れ、水受部５８に溜まった水は第１熱交換器５５の加熱部５４で加熱され、水蒸気となって室内に放出される。したがって車内の室温が高くても人体の体感温度が低く感じられる、結露水の処理が必要ない空調座席装置が実現できる。
【００２２】
なお、図７に示すように第１熱交換器で蒸発しなかった水分を加熱、蒸発させるようシーズヒーター等の加熱手段６１を第１熱交換器に熱が伝わらない位置に設置した構成としたものである。上記構成により雨天時の駐車直後の始動等、室内空気の絶対湿度が一時的に高い場合、水受部５８に流入する水が多く、第１熱交換器５５の加熱部５４での蒸発が間に合わないときは、加熱手段６１を駆動する。加熱手段６１により、加熱手段５４で蒸発しきれなかった水は加熱され、水蒸気となって室内に放出され、結露水の処理が必要ない空調座席装置が実現できる。また加熱手段６１を第１熱交換器に熱が伝わらない位置に設置することにより、熱電素子の動作時の高温接点の温度上昇が防止でき、熱電素子の効率が向上する。
【００２３】
【発明の効果】
以上説明したように本発明の請求項１記載の発明によれば、第２熱交換器の結露面に結露した水は送水管をつたって第２熱交換器の下部に設けられた水受部に流れ、水受部に溜まった水は第１熱交換器の加熱部で加熱され、水蒸気となって室内に放出される構成により、第２熱交換器の結露面が空気の露点以下に冷却され室内空気中の水蒸気は結露し、除湿され、除湿後の乾燥空気は、通風路に導かれ表皮の噴出口から吹き出し、人体背側面を流れる。その際体表面の汗を気化させることで気化熱をうばい人体に冷涼間を与える、ムレ感を防止するとともに、結露水の処理が必要ない空調座席装置が実現できる。
【００２４】
また、請求項２記載の発明によれば、熱電素子の高温接点の熱で水受部に溜まった水を蒸発させる加熱部を持った第１熱交換器と、熱電素子の低温接点の熱で水分を結露させる結露面を持った第２熱交換器と、第２熱交換器で結露した水を水受部に流す送水管とからなり、水受部に溜まった水は第１熱交換器の加熱部で加熱され、水蒸気となって室内に放出される構成により、第２熱交換器の結露面が空気の露点以下に冷却され室内空気中の水蒸気は結露し、除湿され、除湿後の乾燥空気は、通風路に導かれ表皮の噴出口から吹き出し、人体背側面を流れる。
【００２５】
そしてその際体表面の汗を気化させることで気化熱をうばい人体に冷涼間を与える、ムレ感を防止するとともに、結露水の処理が必要ない空調座席装置が実現できる。
【００２６】
また、請求項３記載の発明によれば、水受部に多孔体を設置した構成としたものであり、雨天時の駐車直後の始動等、室内空気の絶対湿度が一時的に高く、水受部に流入する水が多い場合でも、水受部の多孔体に毛細管現象で付着し、座席に振動が加わっても水受部から水があふれることが無い。
【００２７】
また、請求項４記載の発明によれば、水受部に高分子水分吸収体を設置した構成としたものであり、水受部に流入する水が多い場合でも、水受部の高分子水分吸収体の分子の親水基に水分子が捕らえられ、座席に振動が加わっても水受部から水があふれることが無い。
【００２８】
また、請求項５記載の発明によれば、第１熱交換器で蒸発しなかった水分を加熱、蒸発させるようシーズヒーター等の加熱手段を設置した構成であり、水受部に流入する水が多く、第１熱交換器の加熱部での蒸発が間に合わない場合においても、加熱手段で蒸発しきれなかった水は加熱され、水蒸気となって室内に放出され、結露水の処理が必要ない空調座席装置が実現できる。
【図面の簡単な説明】
【図１】本発明の実施例１における空調座席装置の断面図
【図２】同装置の座部の除湿ユニットの断面図
【図３】同装置における噴出温度と背部との冷涼感の官能実験結果得られた特性図
【図４】同装置の水受け皿の断面図
【図５】同装置の水受け皿の断面図
【図６】本発明の実施例２の座部の除湿ユニットの断面図
【図７】同座部の他の除湿ユニットの構成を示す断面図
【図８】従来の空調座席装置の斜視図
【符号の説明】
３１ 座席本体
３２ 表皮
３３ 噴出口
３６ 圧縮機
３７、５８ 水受部
３９、５５ 第１の熱交換器
４０ 膨張弁
４２、５７ 第２の熱交換器
４３、５９ 送水管
４４ 空調手段
４５ 送風機
４６ 通風路
５１ 多孔体
５２ 高分子水分吸収体
５３ 熱電素子
６１ 加熱手段[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air-conditioning seat device that can provide a comfortable sitting feeling even when the user sits for a long time, such as an automobile or an office chair, when the ambient temperature is high or when the user sits for a long time.
[0002]
[Prior art]
As this type of conventional air-conditioning seat device, the one shown in Japanese Patent Publication No. 4-27843 is disclosed. That is, as shown in FIG. 8, an air bag forcibly sucking outside air through the skin cloth 2 in a portion corresponding to a portion where the back of the human body of the seat body abuts is built in the seat body, and the air bag 3 sucks air. A dehumidifying / drying device 6 including a cooling dehumidifier 4 and a heating / drying device 5 for dehumidifying and drying the outside air and exhausting the air to the back of the human body through the air bag 3 is incorporated in the headrest, and the dehumidifying / drying device 6 and the air bag 3 are taken into the intake air passage 7. , And are configured to communicate with each other through an exhaust air passage 8.
[0003]
In the above configuration, the outside air (32 ° C., humidity 80%) on the back of the human body is sucked into the air bag 3 through the skin cloth, enters the cooling dehumidifier 4 through the intake air passage 7, and is cooled and dehumidified (condensed) (15 ° C., 100). %) Air, which is further sent to the heating dryer 5 to be heated and dried (30 ° C., 50%), enters the air bag 3 through the exhaust air passage 8, and blows out from the skin cloth toward the back of the human body. This prevents the body temperature from being deprived by the cooling wind and prevents the occurrence of stuffiness.
[0004]
However, in the above-described conventional configuration, since dehumidification is performed by a cooling dehumidifier in the dehumidification, a drain pipe for flowing dew condensation water is required, and special processing is required for a vehicle body, and a movable office chair is required. Not as easy to use.
[0005]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to realize an air-conditioning seat device in which the perceived temperature of a human body is low even when the room temperature is high, and in which the treatment of dew condensation water is unnecessary.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned conventional problems, an air-conditioning seat device according to the present invention includes a seat body having an ejection port for ejecting air to a skin, a compressor, and a water receiver for evaporating water accumulated in a water receiver. A first heat exchanger of a fin tube type having a heating unit for heating the unit, an expansion valve, and a second heat exchanger of a fin tube type having a condensation surface for condensing water vapor in the blown air; Air-conditioning means including a water pipe for flowing water condensed in the second heat exchanger to a water receiving unit, a blower such as a sirocco fan for sending room air to the second heat exchanger, and dew condensation in the second heat exchanger This is a configuration having a ventilation path for guiding the later dry air to the jet port.
[0007]
With the above configuration, by driving the blower and the air conditioner, the refrigerant compressed by the compressor generates heat in the first heat exchanger and absorbs heat in the second heat exchanger. Cooled below the dew point of the air, the water vapor in the room air is dewed and dehumidified. The dry air after dehumidification is guided to the ventilation passage, blows out from the outlet of the epidermis, and flows on the back side of the human body. At that time, by evaporating the sweat on the body surface, the heat of evaporation is given to the human body, and the human body is cooled and the stuffiness is prevented. Water condensed on the condensation surface of the second heat exchanger flows through a water pipe to a water receiving portion provided at a lower portion of the second heat exchanger, and water accumulated in the water receiving portion is discharged from the first heat exchanger. Is heated in the heating section, and is released into the room as steam.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
The air-conditioning seat device according to claim 1 of the present invention has a seat body having an ejection port for ejecting air to the skin, a compressor, and heating for heating the water receiving portion so as to evaporate water accumulated in the water receiving portion. Fin tube type first heat exchanger having a section, an expansion valve, a fin tube type second heat exchanger having a condensation surface for dew condensation of water vapor in the blown air, and a second heat exchanger Air-conditioning means consisting of a water pipe for flowing water condensed in the water receiving section, a blower such as a sirocco fan for sending room air to the second heat exchanger, and dry air after condensation in the second heat exchanger. The structure has a ventilation path leading to the spout. With the above configuration, by driving the blower and the air conditioner, the refrigerant compressed by the compressor generates heat in the first heat exchanger and absorbs heat in the second heat exchanger, so that the condensation surface of the second heat exchanger is formed. Is cooled below the dew point of the air, and the water vapor in the indoor air is dewed and dehumidified. The dry air after dehumidification is guided to the ventilation passage, blows out from the outlet of the epidermis, and flows on the back side of the human body. At that time, by evaporating the sweat on the body surface, the heat of evaporation is given to the human body, and the human body is cooled and the stuffiness is prevented. Water condensed on the condensation surface of the second heat exchanger flows through a water pipe to a water receiving portion provided at a lower portion of the second heat exchanger, and water accumulated in the water receiving portion is discharged from the first heat exchanger. Is heated in the heating section, and is released into the room as steam. Therefore, it is possible to realize an air-conditioning seat device in which the perceived temperature of the human body is felt low even when the room temperature is high, and which does not require the treatment of dew water.
[0009]
The air-conditioning seat device according to claim 2 of the present invention evaporates water accumulated in a water receiving portion by heat of a seat body having a jet port for jetting air to a skin, a thermoelectric element, and a high-temperature contact of the thermoelectric element. A first heat exchanger having a heating unit, a second heat exchanger having a dew condensation surface for dew condensation of moisture by heat of a low-temperature contact of a thermoelectric element, and water condensed in the second heat exchanger is supplied to a water receiving unit. Air-conditioning means comprising a water pipe for flowing, a blower such as a sirocco fan for sending room air to the second heat exchanger, and a ventilation path for guiding dry air after dew condensation in the second heat exchanger to a jet outlet. It is configured. By driving the blower and the air conditioner with the above configuration, the first heat exchanger is heated by the thermoelectric element and the second heat exchanger is cooled, so that the condensation surface of the second heat exchanger has a dew point of air. Water vapor in the room air is dewed and dehumidified as follows. The dry air after dehumidification is guided to the ventilation passage, blows out from the outlet of the epidermis, and flows on the back side of the human body. At that time, by evaporating the sweat on the body surface, the heat of evaporation is given to the human body, and the human body is cooled and the stuffiness is prevented. Water condensed on the condensation surface of the second heat exchanger flows through a water pipe to a water receiving portion provided at a lower portion of the second heat exchanger, and water accumulated in the water receiving portion is discharged from the first heat exchanger. Is heated in the heating section, and is released into the room as steam. Therefore, it is possible to realize an air-conditioning seat device in which the perceived temperature of the human body is felt low even when the room temperature is high, and which does not require the treatment of dew water.
[0010]
An air-conditioning seat device according to a third aspect of the present invention is the air-conditioning seat device according to the first or second aspect, wherein a porous body is provided in the water receiving portion. In the above configuration, when the absolute humidity of the indoor air is temporarily high, such as when the vehicle is started immediately after parking in rainy weather, a large amount of water flows into the water receiving unit, and the evaporation in the heating unit of the first heat exchanger cannot be completed in time. Therefore, the water adheres to the porous body of the water receiving portion by a capillary phenomenon, and water does not overflow from the water receiving portion even when vibration is applied to the seat.
[0011]
The air-conditioning seat device according to claim 4 of the present invention is the air-conditioning seat device according to claim 1 or 2, wherein the water receiving portion includes a polymer such as a saponified vinyl acetate-methyl acrylate copolymer or carboxymethyl cellulose. This is a configuration in which a moisture absorber is installed. In the above configuration, when the absolute humidity of the indoor air is temporarily high, such as when the vehicle is started immediately after parking in rainy weather, a large amount of water flows into the water receiving unit, and the evaporation in the heating unit of the first heat exchanger cannot be completed in time. In addition, water molecules are trapped in the hydrophilic groups of the molecules of the polymer water absorber in the water receiving portion, and water does not overflow from the water receiving portion even when vibration is applied to the seat.
[0012]
An air-conditioning seat device according to claim 5 of the present invention is the air-conditioning seat device according to any one of claims 1 or 4, wherein the sheath heater is configured to heat and evaporate moisture that has not evaporated in the first heat exchanger. And so on. When the absolute humidity of the indoor air is temporarily high due to the above configuration, such as when the vehicle is started immediately after parking in rainy weather, when the amount of water flowing into the water receiving portion is large and the evaporation in the heating portion of the first heat exchanger cannot be completed in time. Drive the heating means. By the heating means, the water that has not been completely evaporated by the heating means is heated and released into the room as steam, and an air-conditioning seat device that does not require the treatment of dew condensation water can be realized.
[0013]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
(Example 1)
FIG. 1 is a cross-sectional view of an air-conditioning seat device according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of a dehumidifying unit and the like of a seat. Reference numeral 31 denotes a seat body having a jet port 33 for jetting air to a skin 32. Inside the seat portion 34 and the back portion 35, a compressor 36 and the water receiving portion 37 for evaporating water accumulated in a water receiving portion 37 are provided. A fin tube type first heat exchanger 39 having a heating section 38 for heating the section 37, an expansion valve 40, and a fin tube type second fin tube type condensation section 41 having a condensation surface 41 for condensing water vapor in the blown air. An air conditioner 44 including a heat exchanger 42, a water pipe 43 for flowing water condensed in the second heat exchanger 42 to a water receiving unit, and a blower 45 such as a sirocco fan for sending room air to the second heat exchanger. And a ventilation path 46 for guiding dry air after condensation in the second heat exchanger to the jet port.
[0015]
By driving the blower 45 and the air-conditioning means 44 with the above configuration, the refrigerant compressed by the compressor 36 generates heat in the first heat exchanger 38 and absorbs heat in the second heat exchanger 42. The air in the cabin (35 ° C., 55% RH) is condensed on the condensation surface 41 of the second heat exchanger 42 cooled below the dew point and dehumidified. The dehumidified dry air (33 ° C., 20% RH) is guided to the ventilation passage 46, blows out from the outlet 33 of the epidermis, and flows on the back side of the human body. At that time, by evaporating the sweat on the body surface, the heat of evaporation is given to the human body, and the human body is cooled and the stuffiness is prevented.
[0016]
FIG. 3 shows the results of a sensory experiment of the jetting temperature and the cooling sensation on the back when jetting dry air of 0.2 m3 / min and 20% humidity in a room at room temperature 35 ° C. and humidity 55% RH. As shown in FIG. 4, when the temperature is 39 ° C. or lower, a cooling sensation can be obtained by heat of vaporization of sweat, and a cooling sensation can be obtained as the ejection temperature is lower. Water condensed on the dew surface 41 of the second heat exchanger 42 flows through a water pipe 43 to a water receiving portion 37 provided below the second heat exchanger 42, and water collected in the water receiving portion 37. Is heated in the heating section of the first heat exchanger 39 and is released as steam into the room by the cooling blower 48. Therefore, it is possible to realize an air-conditioning seat device in which the perceived temperature of the human body is felt low even when the room temperature is high, and which does not require the treatment of dew water.
[0017]
In addition, as shown in FIG. 4, in a configuration in which the porous body 51 such as a ceramic fiber is installed in the water receiving portion 37, when the absolute humidity of the indoor air is temporarily high, such as starting immediately after parking in rainy weather, etc. However, even when a large amount of water flows into the water receiving portion 37 and the evaporation in the heating portion 38 of the first heat exchanger 39 cannot be made in time, the water adheres to the porous body of the water receiving portion 37 by a capillary phenomenon, and vibration is generated in the seat. Water does not overflow from the water receiving part even if it is added. Further, since water adheres to the surface of the porous body, the evaporation surface area is increased, and the evaporation ability is improved.
[0018]
As shown in FIG. 5, when the water receiving portion 37 is provided with a polymer water absorber 52 such as a saponified product of vinyl acetate-methyl acrylate copolymer or carboxymethyl cellulose, parking in rainy weather is not possible. When the absolute humidity of the indoor air is temporarily high, such as immediately after the start, a large amount of water flows into the water receiving section 37, and even when the evaporation in the heating section 38 of the first heat exchanger 39 cannot be completed in time, the water receiving section 37 may be used. Water molecules are captured by the hydrophilic groups of the molecules of the high molecular weight water absorber of the portion 37, and water does not overflow from the water receiving portion even when vibration is applied to the seat.
[0019]
(Example 2)
FIG. 6 is a sectional view of a dehumidifying unit and the like of a seat portion of an air-conditioning seat device according to a second embodiment of the present invention. Reference numeral 33 denotes an ejection port for ejecting air from the skin of the sheet main body, and has a first heat exchange having a thermoelectric element 53 and a heating section 54 for evaporating water accumulated in a water receiving section by heat of a high-temperature contact point of the thermoelectric element 53. A heat exchanger 55, a second heat exchanger 57 having a dew surface 56 for dew condensation of moisture by the heat of the low temperature contact point of the thermoelectric element, and a water pipe 59 for flowing water condensed by the second heat exchanger to a water receiving portion 58; And a blower 45 such as a sirocco fan for sending indoor air to the second heat exchanger, and a ventilation path 46 for guiding dry air after dew condensation in the second heat exchanger to the jet port. It was done.
[0020]
By driving the blower 45 and the air conditioner 60 with the above configuration, the first heat exchanger 55 is heated by the thermoelectric element 53 and the second heat exchanger 57 is cooled. The condensation surface 56 becomes lower than the dew point of the air, and the water vapor in the room air is dewed and dehumidified. The dry air after dehumidification is guided to the ventilation passage, blows out from the outlet of the epidermis, and flows on the back side of the human body. At that time, by evaporating the sweat on the body surface, the heat of evaporation is given to the human body, and the human body is cooled and the stuffiness is prevented.
[0021]
Water condensed on the dew surface 56 of the second heat exchanger flows through a water pipe 59 to a water receiver 58 provided at a lower portion of the second heat exchanger. 1. Heated by the heating unit 54 of the heat exchanger 55, and is released as steam into the room. Therefore, it is possible to realize an air-conditioning seat device in which the perceived temperature of the human body is felt low even when the room temperature is high, and which does not require the treatment of dew water.
[0022]
In addition, as shown in FIG. 7, a heating means 61 such as a sheathed heater is provided at a position where heat is not transmitted to the first heat exchanger so as to heat and evaporate the water not evaporated in the first heat exchanger. Things. With the above configuration, when the absolute humidity of the indoor air is temporarily high, such as when the vehicle is started immediately after parking in rainy weather, a large amount of water flows into the water receiving portion 58, and the evaporation in the heating portion 54 of the first heat exchanger 55 is in time. If not, the heating means 61 is driven. By the heating means 61, the water that has not been completely evaporated by the heating means 54 is heated, released as steam into the room, and an air-conditioning seat device which does not require the treatment of dew condensation water can be realized. Further, by disposing the heating means 61 at a position where heat is not transmitted to the first heat exchanger, it is possible to prevent the temperature of the high-temperature contact at the time of operation of the thermoelectric element from increasing, thereby improving the efficiency of the thermoelectric element.
[0023]
【The invention's effect】
As described above, according to the first aspect of the present invention, water condensed on the dew surface of the second heat exchanger is transferred to the water receiving portion provided at the lower portion of the second heat exchanger via the water pipe. The water accumulated in the water receiving section is heated by the heating section of the first heat exchanger and is released as steam into the room, so that the condensation surface of the second heat exchanger is cooled below the dew point of air. The water vapor in the indoor air is condensed and dehumidified, and the dehumidified dry air is guided to the ventilation passage, blows out from the outlet of the epidermis, and flows on the back surface of the human body. At this time, it is possible to realize an air-conditioning seat device that evaporates sweat on the body surface to give a heat to the human body when exposed to the heat of vaporization, thereby preventing a feeling of stuffiness and not requiring treatment of dew condensation water.
[0024]
According to the second aspect of the present invention, the first heat exchanger having a heating unit for evaporating water accumulated in the water receiving unit by the heat of the high-temperature contact of the thermoelectric element, and the heat of the low-temperature contact of the thermoelectric element. A second heat exchanger having a dew surface for condensing moisture; and a water pipe for flowing water condensed in the second heat exchanger to a water receiving portion, and water accumulated in the water receiving portion is removed by the first heat exchanger. Is heated by the heating unit, and is condensed into the room by being released as water vapor, the condensation surface of the second heat exchanger is cooled below the dew point of the air, and the water vapor in the room air is condensed, dehumidified, and dehumidified. The dry air is guided to the ventilation passage, blows out from the outlet of the epidermis, and flows on the back side of the human body.
[0025]
At that time, an air-conditioning seat device that evaporates sweat on the body surface, gives a heat to the human body when exposed to the heat of vaporization, provides a cool period to the human body, prevents a feeling of stuffiness, and does not require treatment of dew condensation water can be realized.
[0026]
According to the third aspect of the invention, the water receiving portion is provided with a porous body, and the absolute humidity of the indoor air is temporarily high, such as when the vehicle is started immediately after parking in rainy weather. Even when there is a large amount of water flowing into the portion, the water adheres to the porous body of the water receiving portion by capillary action, and water does not overflow from the water receiving portion even when vibration is applied to the seat.
[0027]
According to the fourth aspect of the present invention, the high-molecular-weight water absorber is provided in the water-receiving portion, and even when a large amount of water flows into the water-receiving portion, the high-molecular-weight water in the water-receiving portion is provided. Water molecules are trapped by the hydrophilic groups of the molecules of the absorber, and water does not overflow from the water receiving portion even when vibration is applied to the seat.
[0028]
According to the fifth aspect of the invention, a heating means such as a sheath heater is provided so as to heat and evaporate the water not evaporated in the first heat exchanger. In many cases, even when the evaporation in the heating section of the first heat exchanger cannot be completed in time, the water that has not been completely evaporated by the heating means is heated and released into the room as steam, and air conditioning that does not require the treatment of dew condensation water is required. A seat device can be realized.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an air-conditioning seat device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of a dehumidifying unit in a seat portion of the device. FIG. FIG. 4 is a cross-sectional view of a water tray of the apparatus. FIG. 5 is a cross-sectional view of a water tray of the apparatus. FIG. 6 is a cross-sectional view of a dehumidifying unit of a seat according to a second embodiment of the present invention. FIG. 7 is a sectional view showing the configuration of another dehumidifying unit of the seat portion. FIG. 8 is a perspective view of a conventional air-conditioning seat device.
31 Seat body 32 Skin 33 Spout port 36 Compressor 37, 58 Water receiving section 39, 55 First heat exchanger 40 Expansion valve 42, 57 Second heat exchanger 43, 59 Water pipe 44 Air conditioning means 45 Blower 46 Ventilation Channel 51 porous body 52 polymer water absorber 53 thermoelectric element 61 heating means
