JP2590605B2 - Air conditioner - Google Patents

Air conditioner

Info

Publication number
JP2590605B2
JP2590605B2 JP2300050A JP30005090A JP2590605B2 JP 2590605 B2 JP2590605 B2 JP 2590605B2 JP 2300050 A JP2300050 A JP 2300050A JP 30005090 A JP30005090 A JP 30005090A JP 2590605 B2 JP2590605 B2 JP 2590605B2
Authority
JP
Japan
Prior art keywords
heat exchanger
air
outdoor unit
heat
room
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
JP2300050A
Other languages
Japanese (ja)
Other versions
JPH04174223A (en
Inventor
佳昭 谷村
哲朗 大串
健三 倉橋
芳男 佐々木
正志 桜井
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2300050A priority Critical patent/JP2590605B2/en
Publication of JPH04174223A publication Critical patent/JPH04174223A/en
Application granted granted Critical
Publication of JP2590605B2 publication Critical patent/JP2590605B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Other Air-Conditioning Systems (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、空気調和機の室内外機のコンパクト化
(薄形化、小形化)に関するものである。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact (thin, small) indoor / outdoor unit of an air conditioner.

〔従来の技術〕[Conventional technology]

第9、第10図は例えば実公昭60−9652号公報に示され
た従来の空気調和機の室外機を示す中央部横断面図であ
る。
FIGS. 9 and 10 are transverse cross-sectional views of a central portion of an outdoor unit of a conventional air conditioner disclosed in Japanese Utility Model Publication No. 60-9652, for example.

第9図において、(7)は空気調和機の室外筐体で圧
縮機室(8)と熱交換器室(9)とに区画形成してい
る。(18)はこの熱交換器室(9)に設けた送風機で、
送風機用電動機(4)に取付けられている。(11)は上
記筐体(7)の熱交換器室(9)側の側面、及び背面に
設けた空気吸込口、(12)は空気吹出口で、筐体(7)
の前面に設けている。(17)はL形の熱交換器で、上記
筐体(7)の空気吸込口(11)に対向させて配置させて
いる。
In FIG. 9, (7) is an outdoor case of the air conditioner, which is divided into a compressor room (8) and a heat exchanger room (9). (18) is a blower provided in this heat exchanger room (9),
It is attached to the electric motor (4) for the blower. (11) is an air inlet provided on the side and the back of the housing (7) on the side of the heat exchanger chamber (9), and (12) is an air outlet, and the housing (7)
It is provided on the front of. (17) is an L-shaped heat exchanger, which is disposed so as to face the air inlet (11) of the housing (7).

第10図において(11)は上記筐体(7)の一側面とし
ての左側面(20)に設けた空気吸込口で背面(21)及び
上下面(19)にも設けている。(17)は多数の針状フィ
ンを有するスパインフィンチューブを複数に巻回形成し
た主熱交換器で送風機(18)、及び送風機電動機(4)
を取囲むように外周を覆うとともに、上記筐体(7)の
一側面としての左側面(20)、上下面(19)に対向する
ように配置してある。(22)は後部熱交換器で、上記主
熱交換器(17)に連続して一体の熱交換器に形成し、か
つ送風機電動機(4)を除いた筐体(7)のほぼ背面
(21)の空気吸込口(11)全面に対向するよう配置され
渦巻状にして複数巻にした多数針状フィンのスパインフ
ィンチューブより形成されている。
In FIG. 10, (11) is an air suction port provided on the left side surface (20) as one side surface of the housing (7), which is also provided on the back surface (21) and the upper and lower surfaces (19). (17) is a main heat exchanger formed by winding a plurality of spine fin tubes having a large number of needle-like fins, a blower (18), and a blower motor (4).
And is arranged so as to face the left side surface (20) as one side surface of the housing (7) and the upper and lower surfaces (19). Reference numeral (22) denotes a rear heat exchanger which is formed integrally with the main heat exchanger (17) as a heat exchanger and which is substantially the same as the rear heat exchanger (21) except for the blower motor (4). ) Is formed from a plurality of needle-shaped spine fin tubes which are arranged so as to face the entire surface of the air suction port (11) and are spirally wound into a plurality of turns.

このように構成された第9、第10図の室外ユニットに
おいては、送風機電動機(4)の駆動により送風機(1
8)を回転させ、空気吸込口(11)から一次空気を吸込
み、前面吹出口(12)から二次空気を吹出すものであ
る。
9 and 10, the blower (1) is driven by the blower motor (4).
8) is rotated to draw primary air from the air inlet (11) and blow out secondary air from the front outlet (12).

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

従来の空気調和機の室外機は以上のように構成されて
おり騒音、高効率化のためには熱交換器と送風機の距離
(風路)を確保し、熱交換器を通る風の速度分布の均一
化を図り、かつ熱交換器の正面面積を広げて熱交換器面
積の増大を図るとともに、風の通過面積を広げて抵抗も
少なくなる構成となっていた。
The outdoor unit of the conventional air conditioner is configured as described above. For noise and high efficiency, the distance (wind path) between the heat exchanger and the blower is secured, and the velocity distribution of the wind passing through the heat exchanger And the area of the heat exchanger is increased by increasing the front area of the heat exchanger, and the resistance is reduced by increasing the area through which the wind passes.

しかし、近年の空気調和機の普及率の増大に行い、住
宅密集地への据付け及びビル等の集中複数台設置等が増
大し、かつ室外機の配置は地面のみならずベランダ、手
すり、壁、屋上、窓上など据付けの多様化が必要となっ
てきた。
However, in recent years, the penetration rate of air conditioners has increased, and installation in densely populated areas and installation of multiple centralized units such as buildings have increased, and the arrangement of outdoor units has not only the ground but also verandas, handrails, walls, It has become necessary to diversify the installation, such as on the roof and windows.

このような要求に対して、室外機の小形化、薄形化は
大きな課題であるが、従来の室外機では上述したよう
に、ファンと熱交換器で構成されている熱交換器室は騒
音、高効率のためには十分なスペースをとる必要があ
り、そのためにより小形、薄形化を促進することができ
ない等の欠点があった。
To meet such demands, the downsizing and thinning of the outdoor unit is a major issue, but in the conventional outdoor unit, as described above, the heat exchanger room composed of the fan and the heat exchanger is noisy. In addition, it is necessary to take a sufficient space for high efficiency, so that there is a drawback such that it is not possible to promote downsizing and thinning.

この発明は上記のような問題点を解消するためになさ
れたもので、小形、薄形を追求し、かつ据付けの多様化
を計った空気調和機を提供するものである。
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an air conditioner pursuing a small size and a thin shape and diversifying the installation.

〔課題を解決するための手段〕[Means for solving the problem]

この発明による空気調和機は、伝熱体及びこの伝熱体
と対向して設けられ、これに対して相対運動する攪乱翼
を備え、この攪乱翼の上記伝熱体側端と上記伝熱体の伝
熱面間との距離を、この距離の減少に伴う対流熱伝達率
の上昇の勾配が立上がる立上がり点より小さくした熱交
換装置を有するものである。
An air conditioner according to the present invention includes a heat transfer body and a disturbing blade provided to face the heat transfer member and relatively move with respect to the heat transfer member. A heat exchange device is provided in which the distance between the heat transfer surfaces is smaller than a rising point at which a gradient of a convective heat transfer coefficient rises with a decrease in the distance.

また圧縮機と熱交換器室とに区画形成されており、前
記熱交換器室の背面中央部に空気吸込口、左側面及び前
面に空気吹出口を設けるとともに、熱交換装置を背面側
が吸込方向になるように、前記熱交換器室に配置した室
外機を有するものである。
In addition, an air inlet is provided in the center of the rear surface of the heat exchanger room, and an air outlet is provided on the left side and the front surface of the heat exchanger room. And an outdoor unit disposed in the heat exchanger room.

また中央部に熱交換器室、その左右にそれぞれ電気品
室、圧縮機室とが配置されており、前記熱交換器室に熱
交換装置を背面側が吸込方向になるように設けるととも
に、熱交換器室の背面中央部に空気吸込口、前面には前
記熱交換装置側の面に周囲部が円錐状に傾斜した円錐台
を形成し、前記熱交換装置を出た吹出空気を前記円錐台
の傾斜面と平行に流れるように吹出風路を構成し、空気
の流れ方向を外側に向かう斜め方向に変えるようにした
室外機を有するものである。
In addition, a heat exchanger room is disposed in the center, and an electric component room and a compressor room are respectively disposed on the left and right sides thereof. A heat exchange device is provided in the heat exchanger room so that the back side is in the suction direction, and heat exchange is performed. An air intake port is formed at the center of the rear surface of the container room, and a truncated cone whose peripheral portion is inclined in a conical shape is formed on the surface on the side of the heat exchange device at the front surface, and the air blown out of the heat exchange device is supplied to the truncated cone. An outdoor unit has an airflow path configured to flow in parallel with the inclined surface, and the airflow direction is changed to an oblique direction toward the outside.

また圧縮機室、熱交換器室とに区画形成されており、
前記熱交換器の下面中央部に空気吸込口、前面に空気吹
出口を設けるとともに、熱交換装置を下面側が吸込方向
になるように前記熱交換器室に配置し、前記熱交換装置
の回りに前記空気吹出口に連通したスクロールケーシン
グを設けた室外機を有するものである。
It is also divided into a compressor room and a heat exchanger room,
An air inlet is provided at the center of the lower surface of the heat exchanger, and an air outlet is provided at the front, and a heat exchanger is arranged in the heat exchanger chamber such that the lower surface side is in the suction direction, and around the heat exchanger. An outdoor unit having a scroll casing connected to the air outlet is provided.

また上部に熱交換器室、下部に圧縮機室が配置され、
前記熱交換器室の上面中央部に、空気吸込口、前後左右
面に空気吹出口を設けるとともに、熱交換装置を上面側
が吸込方向になるように、前記熱交換器室に配置した室
外機を有するものである。
A heat exchanger room is located at the top and a compressor room at the bottom.
At the center of the upper surface of the heat exchanger room, air inlets, air outlets are provided on the front, rear, left and right surfaces, and an outdoor unit disposed in the heat exchanger room so that the heat exchange device is in the suction direction on the upper surface side. Have

また上部に熱交換器室、下部に圧縮機室が配置され、
前記熱交換器室の前面中央部に、空気吸込口、上部に空
気吹出口を設けるとともに、熱交換装置を前面側が吸込
方向になるように前記熱交換器室に配置し、前記熱交換
装置の回りに前記空気吹出口に連通したスクロールケー
シングを設けた室外機を有するものである。
A heat exchanger room is located at the top and a compressor room at the bottom.
At the center of the front surface of the heat exchanger room, an air inlet, an air outlet is provided at the top, and a heat exchange device is arranged in the heat exchanger room so that the front side is in the suction direction. It has an outdoor unit around which a scroll casing communicating with the air outlet is provided.

また下面中央部に空気吸込口、その両端部に空気吹出
口を配設し、前記下面空気吸込口上部に熱交換装置を下
面が吸込方向になるように設けるとともに、前記熱交換
装置を出た吹出空気が前記空気吹出口に流れるように曲
がり風路を形成した室内機を有するものである。
In addition, an air inlet is provided at the center of the lower surface, and air outlets are provided at both ends thereof.A heat exchanger is provided above the lower air inlet so that the lower surface is in the suction direction, and the heat exchanger exits. The air conditioner has an indoor unit that forms a curved air passage so that the blown air flows to the air outlet.

〔作用〕[Action]

この発明における空気調和機は、熱交換装置の作用に
より、すなわち熱交換器に近接して翼を熱交換器と相対
運動させているため、翼が伝熱面上の温度境界層を横切
ることになるので伝熱面近接の空気流の乱れが大きくな
り、対流熱伝達率が大巾に増大するため、熱交換器の面
積を小さくすることができるとともに、従来の送風機も
不用となるため室内外機の小形化、軽量化、高性能化、
静音化が実現可能となる。
In the air conditioner of the present invention, the blade moves across the temperature boundary layer on the heat transfer surface because the blade moves relative to the heat exchanger by the action of the heat exchanger, that is, in the vicinity of the heat exchanger. Therefore, the turbulence of the air flow near the heat transfer surface increases, and the convective heat transfer coefficient greatly increases, so that the area of the heat exchanger can be reduced. Smaller, lighter, higher performance machines
Noise reduction can be realized.

また上記熱交換装置を室外機に組込むことにより室外
機のコンパクト化が図れる。
In addition, the outdoor unit can be made compact by incorporating the heat exchange device into the outdoor unit.

また上記熱交換装置を室外機に組込み、さらに吹出空
気を前方斜めに吹出す構成にしたことにより室外機のエ
クステリア化、設置スペースの低減が図れる。
In addition, by incorporating the heat exchange device into the outdoor unit and blowing the blown air obliquely forward, the exterior of the outdoor unit and the installation space can be reduced.

また上記熱交換装置を室外機に組込み、さらに空気を
下面から吸込み、前面に吹出す構成にしたことにより天
吊、室外機の薄形化、軽量化が図れる。
In addition, by incorporating the heat exchange device into the outdoor unit, and further by sucking air from the lower surface and blowing the air to the front surface, the ceiling unit and the outdoor unit can be made thinner and lighter.

また上記熱交換装置を室外機に組込み、さらに空気を
上面から吸込み側面四方向に吹出す構成にしたことによ
り室外機の高性能化、静音化が図れる。
In addition, by incorporating the heat exchange device into the outdoor unit and sucking air from the upper surface and blowing the air in four directions on the side surface, the performance of the outdoor unit can be improved and the noise can be reduced.

また上記熱交換装置を室外機に組込み、さらに空気を
前面(あるいは背面)から吸込み、上面から吹出す構成
にしたことにより室外機の集中設置のスペースの低減が
図れる。
In addition, by incorporating the heat exchange device into the outdoor unit, and further by sucking air from the front (or back) and blowing it out from the upper surface, the space for centralized installation of the outdoor unit can be reduced.

また上記熱交換装置を室外機に組込み、空気を下面か
ら吸込みその前後左右の4端部から吹出す構成にしたこ
とにより天井カセットタイプの室内機の薄形化、軽量化
が図れる。
In addition, by incorporating the heat exchange device into the outdoor unit and sucking air from the lower surface and blowing it out from four front, rear, left and right ends, the ceiling cassette type indoor unit can be made thinner and lighter.

〔実施例〕〔Example〕

実施例1 以下この発明の実施例1について説明する。第1図は
本発明の実施例1を示す室外機の横断面図であり、図に
おいて(7)は本発明の室外機の室外筐体で、冷凍圧縮
機(10)が組込まれている圧縮室(8)と熱交換装置
(13)が組込まれている熱交換器室(9)とに区画形成
している。(11)は前記熱交換器室(9)の背面中央部
に設けた空気吸込口、(12)はその前面及び左側面に設
けた空気吹出口である。
Embodiment 1 Embodiment 1 of the present invention will be described below. FIG. 1 is a cross-sectional view of an outdoor unit showing Embodiment 1 of the present invention. In the drawing, (7) is an outdoor housing of the outdoor unit of the present invention, in which a refrigerating compressor (10) is incorporated. A compartment (8) and a heat exchanger room (9) in which a heat exchange device (13) is incorporated are formed. (11) is an air inlet provided in the center of the back of the heat exchanger chamber (9), and (12) is an air outlet provided on the front and left sides thereof.

また、前記熱交換装置(13)の構成を第7図に基づい
て説明する。第7図は、熱交換装置の軸方向段数の場合
の断面構成図である。第7図において(3)は中央部が
開口された円板(2)に垂直に複数個植設された板状の
攪乱翼、(4)は円板(2)を回転させるための電動
機、(5)は空気流入口でこの場合は円板の中央部に設
けられた開口、(6)は空気流出口である。(S)は攪
乱翼(3)の伝熱体(熱交換器)(1)側端と伝熱体
(1)の伝熱面(1a)間の距離で、上記距離の減少に伴
う対流熱伝達率の上昇の勾配が立上がる立上がり点より
も小さく設定されている。本発明の実施例の熱交換装置
(13)は、所定の能力を確保するために攪乱翼(3)及
び伝熱体(1)を駆動軸方向に多段に配設されており、
前記熱交換器(7)と背面側が空気の流入方向になるよ
うに配設されている。
The configuration of the heat exchange device (13) will be described with reference to FIG. FIG. 7 is a cross-sectional configuration diagram in the case of the number of stages in the axial direction of the heat exchange device. In FIG. 7, (3) is a plate-shaped turbulent impeller vertically planted on a disk (2) having an open central portion, (4) is an electric motor for rotating the disk (2), (5) is an air inlet, in this case an opening provided at the center of the disk, and (6) is an air outlet. (S) is the distance between the end of the heat transfer body (heat exchanger) (1) of the impeller (3) and the heat transfer surface (1a) of the heat transfer body (1). The gradient of the increase in the transmission rate is set to be smaller than the rising point at which the transmission rate rises. The heat exchange device (13) according to the embodiment of the present invention includes a plurality of turbulent blades (3) and a heat transfer body (1) arranged in the drive shaft direction in multiple stages in order to secure a predetermined capacity.
The heat exchanger (7) and the rear side are arranged so that the air flows in the direction of inflow.

次にこの実施例の動作について説明する。第1図にお
いて電動機(4)の回転により、前記空気吸込口(11)
から一次空気を吸込み、熱交換器一体形ファン(13)を
通ってここで熱交換され、前面及び左側面に設けた空気
吹出口から二次空気を吹出すことになる。
Next, the operation of this embodiment will be described. In FIG. 1, the rotation of the electric motor (4) causes the air suction port (11) to rotate.
The primary air is sucked through the heat exchanger, the heat is exchanged here through the heat exchanger integrated fan (13), and the secondary air is blown out from the air outlets provided on the front and left sides.

ここで熱交換装置の動作について説明する。 Here, the operation of the heat exchange device will be described.

なお詳細はこの発明の出願人が出願した平成2年9月
20日付特許願(26)に詳述されている。
For details, see September 1990 filed by the applicant of the present invention.
This is described in detail in Patent Application No. 20 (26).

第7図において電動機(4)の回転により、円板
(2)の攪乱翼が回転すると、攪乱翼(3)により生じ
る遠心力により空気は駆動され、図中点線矢印に示すよ
うに空気流入口(5)から流入し、内側から外側へ向け
て伝熱面(1a)上を流れることになり、実線矢印に示す
ように熱は伝熱面(1)から空気に伝達されることにな
る。第8図の特性図はこの実施例における攪乱翼(3)
の伝熱体側端と伝熱面(1a)間の距離sに対する対流熱
伝達率hの変化の実測値を示したものである。攪乱翼
(3)の伝熱体側端と伝熱面(1a)間の距離が伝熱面
(1a)上の温度境界層厚みよりも小さくなると、攪乱翼
(3)が温度境界層を横切ることになり、伝熱面(1a)
近傍の空気流の乱れによる対流熱伝達率の増大が著しく
なる。そのため第8図に示されるように、攪乱翼(3)
の伝熱体側端と伝熱面(1a)間の距離sの減少に伴う対
流熱伝達率上昇の勾配が立上がる立上がり点ser(図中
では4mm)が存在する。また、距離sが大きくなると殆
ど変化せず従来例の対流熱伝達率値と等価となる。
In FIG. 7, when the impeller of the disk (2) is rotated by the rotation of the motor (4), the air is driven by the centrifugal force generated by the impeller (3), and the air inlet is indicated by the dotted arrow in the figure. The heat flows from (5) and flows from the inside to the outside on the heat transfer surface (1a), and the heat is transferred from the heat transfer surface (1) to the air as shown by a solid arrow. The characteristic diagram of FIG. 8 shows the disturbance wing (3) in this embodiment.
3 shows actual measured values of the change of the convective heat transfer coefficient h with respect to the distance s between the heat transfer body side end and the heat transfer surface (1a). When the distance between the heat transfer body end of the impeller (3) and the heat transfer surface (1a) is smaller than the thickness of the temperature boundary layer on the heat transfer surface (1a), the impeller (3) crosses the temperature boundary layer. And heat transfer surface (1a)
The convection heat transfer coefficient is significantly increased by the turbulence of the nearby air flow. Therefore, as shown in FIG.
There is a rising point s er (4 mm in the figure) where the gradient of the convective heat transfer coefficient rises with the decrease in the distance s between the heat transfer body side end and the heat transfer surface (1a). Further, when the distance s increases, there is almost no change, which is equivalent to the convective heat transfer coefficient value of the conventional example.

この実施例では攪乱翼(3)の伝熱体側端と伝熱面
(1)間の距離が0.1mmとserよりも小さくなっているた
め、乱れが大きくなり、空気の対流熱伝達率が従来例の
場合の約2〜10倍大きくなる。その結果、伝熱面の面積
が小さくて良く、小形では軽量な熱交換器が得られる。
Since the distance between the heat transfer body side terminal and the heat transfer surface (1) disturbances wing (3) in this embodiment is smaller than 0.1mm and s er, turbulence is increased, the air convective heat transfer coefficient It is about 2 to 10 times larger than in the case of the conventional example. As a result, the heat transfer surface area can be small, and a small and lightweight heat exchanger can be obtained.

つまり熱伝達率の大巾な上昇により、熱交換器の面積
の小形化が図られ、また従来の送風機も必要なくなるた
め、熱交換器室(9)の容積を従来に比べ非常に小さく
でき、室外機のコンパクト化、省スペース化が可能にな
る。
In other words, a large increase in the heat transfer coefficient reduces the area of the heat exchanger, and eliminates the need for a conventional blower. Therefore, the volume of the heat exchanger chamber (9) can be made very small as compared with the conventional case. The outdoor unit can be made compact and space-saving.

次に熱交換装置を応用した他の実施例について説明す
る。
Next, another embodiment to which the heat exchange device is applied will be described.

なお熱交換装置の構成及び動作については、前記実施
例と同様であるのでその説明は省略する。
Note that the configuration and operation of the heat exchange device are the same as those in the above-described embodiment, and thus description thereof will be omitted.

実施例2 この発明の実施例2について説明する。第2図は、室
外機のエクステリア化、設置スペースの低減等を図った
もので、本実施例を示す室外機の横断面図である。
Embodiment 2 Embodiment 2 of the present invention will be described. FIG. 2 is a cross-sectional view of the outdoor unit according to the present embodiment, which aims at exteriorizing the outdoor unit, reducing the installation space, and the like.

図において、(7)は室外機筺体で中央部に熱交換器
室(9)、その左右にそれぞれ電気品(14)が組込まれ
ている電気品室(14)、圧縮機(10)が組込まれている
圧縮機室(8)とが配置されている。(11)は前記熱交
換器室(9)の背面中央部に設けられた空気吸込口(1
2)はその前面の上下左右の4つの端面に設けられた空
気吹出口、(13)は熱交換装置であり、前記熱交換器室
(9)に背面側が空気の吸込方向となるように配設され
ている。(23)は熱交換器(13)の前面部の前記熱交換
装置(13)側の面に突出した周囲部が円錐状に傾斜した
円錐台であり、前記熱交換装置(13)を出た吹出空気を
外側に向う斜め方向に変える役目をしており、そのため
に吹出風路は、前記円錐台(23)の傾斜面と平行になる
ように構成されている。
In the figure, (7) is an outdoor unit housing, a heat exchanger room (9) in the center, an electric component room (14) in which electric components (14) are respectively installed on the left and right sides, and a compressor (10). Compressor room (8) is arranged. (11) is an air inlet (1) provided at the center of the back of the heat exchanger chamber (9).
2) are air outlets provided at four front, upper, lower, left and right end surfaces of the front surface, and (13) is a heat exchanger, which is disposed in the heat exchanger chamber (9) so that the rear side is in the air suction direction. Has been established. (23) is a truncated cone whose peripheral portion protruding from the surface of the heat exchanger (13) on the side of the heat exchange device (13) is inclined in a conical shape and exits the heat exchange device (13). It serves to change the blown air in an obliquely outward direction, so that the blown air passage is configured to be parallel to the inclined surface of the truncated cone (23).

次に上記室外機の動作について説明する。電動機
(4)の回転により前記空気吸込口(11)から一次空気
を吸込み、熱交換器一体形ファン(13)に入る。ここで
熱交換された二次空気は、熱交換装置を出た後、前記円
錐台(19)の傾斜面に沿った流れとなるように構成され
ている吹出風路により、前記空気吹出口(12)より外側
斜め方向に吹出されることになる。つまり風が斜め方向
に吹出されるため、ユニット前面と壁との間隔を狭くで
き、実際の設置スペースが低減でき今まで据付が不可能
だった場所にも可能となる。また従来の形態と違い、前
からファン等が見えない構成となっているため、室外機
のエクステリア化の方向に適したものである。
Next, the operation of the outdoor unit will be described. The rotation of the electric motor (4) draws primary air from the air suction port (11) and enters the heat exchanger integrated fan (13). After leaving the heat exchanger, the heat-exchanged secondary air flows out along the inclined surface of the truncated cone (19) through the air outlet (the air outlet). 12) It will be blown out more diagonally outside. In other words, since the wind is blown obliquely, the distance between the front of the unit and the wall can be reduced, the actual installation space can be reduced, and the installation is possible even in places where installation was impossible up to now. Further, unlike the conventional form, the fan and the like are not visible from the front, so that the outdoor unit is suitable for the exterior direction.

従来の構成で上記ユニットを実現しようとした場合、
従来の熱交換器室に加えて風の向きを変える吹出風路の
容積も必要となり、ユニットとしては従来より大きいも
のとなる。上記実施例では熱交換装置を応用することに
より、熱交換器室の容積を低減できるため、室外機の大
きさを変えることなく上記目的が達成されるものとなっ
ている。
When trying to realize the above unit with the conventional configuration,
In addition to the conventional heat exchanger room, the volume of the blow-out air path for changing the direction of the wind is required, and the unit becomes larger than before. In the above embodiment, since the volume of the heat exchanger room can be reduced by applying the heat exchange device, the above object can be achieved without changing the size of the outdoor unit.

実施例3 この発明の実施例3について説明する。第3図は、ベ
ランダ窓上の天面に据付けられる天吊室外機の薄形化、
軽量化を図ったもので本実施例を示す室外機の縦断面図
である。
Third Embodiment A third embodiment of the present invention will be described. FIG. 3 is a view of a thin ceiling hanging outdoor unit installed on a ceiling on a veranda window,
FIG. 2 is a vertical cross-sectional view of an outdoor unit according to the present embodiment, which is reduced in weight.

図において(7)は室外機筺体で、横置き圧縮機(1
0)が組込まれている圧縮機室(8)と、熱交換装置(1
3)が組込まれている熱交換器室とに区画形成してい
る。
In the figure, (7) is the outdoor unit housing, and the horizontal compressor (1
0) and a heat exchanger (1).
3) It is divided into the heat exchanger room where it is installed.

(1)は前記熱交換器室(9)の下面中央部に設けら
れた空気吸込口、(12)はその前面に設けられた空気吹
出口である。また熱交換装置(13)は下面側が空気の吸
込方向になるように配設され、その回りに熱交換器一体
形ファン(13)を出た空気を前記吹出口(12)に導くよ
うに構成されたスクロールケーシング(15)が設けられ
ている。
(1) is an air inlet provided in the center of the lower surface of the heat exchanger chamber (9), and (12) is an air outlet provided on the front surface thereof. The heat exchange device (13) is arranged so that the lower surface side is in the air suction direction, and is configured to guide the air exiting the heat exchanger integrated fan (13) to the outlet (12) therearound. A scroll casing (15) is provided.

次に上記室外機の動作について説明する。 Next, the operation of the outdoor unit will be described.

電動機(4)の回転により、前記空気吸込口(11)か
ら一次空気を吸込み熱交換器一体形ファン(13)に入
る。ここで熱交換された二次空気は、スクロールケーシ
ング(15)により前記空気吹出口(12)に導かれ、外気
へと吹出されることになる。
The rotation of the electric motor (4) draws primary air from the air inlet (11) and enters the heat exchanger integrated fan (13). The secondary air subjected to the heat exchange is guided to the air outlet (12) by the scroll casing (15) and is blown out to the outside air.

一般にベランダ窓上の天面に据付けられる室外機は、
据付位置、振動等の問題から薄形化、軽量化が要求され
る。
Generally, the outdoor unit installed on the top of the veranda window is
Due to problems such as installation position and vibration, thinning and weight reduction are required.

本実施例では、熱交換器一体形ファンを応用すること
により、上記室外機の軽量化、薄形化が実現できるもの
である。
In this embodiment, by applying a heat exchanger integrated fan, the outdoor unit can be reduced in weight and thickness.

実施例4 この発明における実施例4について説明する。Embodiment 4 Embodiment 4 of the present invention will be described.

第4図において(7)は室外機筺体で、上部に熱交換
装置(13)が組込まれた熱交換器室(9)、下部に横置
き圧縮機(10)が組込まれている圧縮機室(8)とが配
置されている。(11)は前記熱交換器室(9)の上面中
央部に設けられた空気吸込口(12)はその前左右の4面
端部に設けられた空気吹出口である。また前記熱交換装
置(13)は、前記熱交換器室(9)の上面側が吸込方向
になるように配設されている。
In FIG. 4, (7) is an outdoor unit housing, a heat exchanger room (9) in which a heat exchanger (13) is incorporated in an upper part, and a compressor room in which a horizontal compressor (10) is incorporated in a lower part. (8) are arranged. (11) Air inlets (12) provided at the center of the upper surface of the heat exchanger chamber (9) are air outlets provided at four front, left and right ends. Further, the heat exchange device (13) is disposed such that the upper surface side of the heat exchanger chamber (9) is in the suction direction.

次に上記室外機の動作について説明する。電動機
(4)の回転により、前記空気吸込口(11)から一次空
気を吸込み熱交換装置(13)に入る。ここで熱交換され
た二次空気は、前記空吹出口(12)から4方向に吹出さ
れることになる。
Next, the operation of the outdoor unit will be described. The rotation of the electric motor (4) draws primary air from the air suction port (11) and enters the heat exchange device (13). The secondary air that has undergone heat exchange is blown in four directions from the air outlet (12).

本発明の熱交換装置の特性としては前述したように、
遠心力により風を内側から外側に送り出すものである。
その特性を最も生かすユニット構成は、上記のように無
理に風の流れの向きを変えることなく、吹出口を熱交換
装置の吹出の全周囲に配置させたものである。したがっ
て対流熱伝達率の大巾な向上を十分に生かすことがで
き、風路の抵抗も小さくできるため、室外機の高性能
化、静音化を図ることができるとともに、室外機の体積
の低減にも効果が大きいものと考えられる。
As described above, the characteristics of the heat exchange device of the present invention are as follows:
It sends out wind from the inside to the outside by centrifugal force.
The unit configuration that makes the best use of the characteristics is one in which the outlets are arranged around the entire outlet of the heat exchange device without forcibly changing the direction of the flow of the wind as described above. Therefore, the large improvement of the convective heat transfer coefficient can be fully utilized, and the resistance of the air passage can be reduced, so that the performance of the outdoor unit can be improved and the noise can be reduced, and the volume of the outdoor unit can be reduced. Is also considered to be highly effective.

実施例5 この発明の実施例5について説明する。第5図は、ビ
ルの屋上等に集中的に設置される場合の室外機の設置ス
ペースの低減を図ったもので、本実施例を示す室外機の
縦断面図である。
Embodiment 5 Embodiment 5 of the present invention will be described. FIG. 5 is a longitudinal sectional view of an outdoor unit according to the present embodiment, in which the installation space of the outdoor unit is reduced when the installation is concentrated on the roof of a building or the like.

図において(7)は室外機筺体で上部に熱交換装置
(13)が組込まれた熱交換器室(9)、下部に圧縮機
(10)が組込まれた圧縮機室(8)とが配置されてい
る。(11)は前記熱交換器室(13)の前面(あるいは背
面)中央部に設けられた空気吸込口、(12)はその上面
に設けられた空気吹出口である。また熱交換装置(13)
は前面側(あるいは背面側)が空気の吸込方向になるよ
うに配設され、その回りに熱交換装置(13)を出た空気
を前記吹出口(12)に導くように構成されたスクロール
ケーシング(15)が設けられている。
In the figure, (7) is an outdoor unit housing in which a heat exchanger room (9) in which a heat exchange device (13) is incorporated is arranged in an upper part, and a compressor room (8) in which a compressor (10) is incorporated is arranged at a lower part. Have been. (11) is an air inlet provided in the center of the front (or back) of the heat exchanger chamber (13), and (12) is an air outlet provided on the upper surface thereof. Also heat exchange equipment (13)
Is a scroll casing arranged so that the front side (or the rear side) is in the air suction direction, and around which the air exiting the heat exchange device (13) is guided to the outlet (12). (15) is provided.

次に上記室外機の動作について説明する。電動機
(4)の回転により、前記空気吸込口(11)から一次空
気を吸込み熱交換装置(13)に入る。ここで熱交換され
た二次空気は、スクロールケーシング(15)により前記
空気吹出口(12)に導かれ、外気へと吹出されることに
なる。
Next, the operation of the outdoor unit will be described. The rotation of the electric motor (4) draws primary air from the air suction port (11) and enters the heat exchange device (13). The secondary air subjected to the heat exchange is guided to the air outlet (12) by the scroll casing (15) and is blown out to the outside air.

近年、空調機の分散設置が進む中でビル等の屋上に複
数台の集中設置が増加している。本実施例の室外機は上
に吹出す構成となっているため、側面及び背面(あるい
は前面)が接する形で複数台の室外機を設置することが
でき、集中設置におけるスペースの低減を図ることがで
きる。また従来の構成で上記ユニットを実現しようとし
た場合、やはり熱交換器室の容積を大きくする必要があ
りユニットの奥行等が大きくなり、設置面積が増えるこ
とになる。本実施例ではユニット自体も小さくできるた
め、大きな省スペース化が実現できることになる。
2. Description of the Related Art In recent years, as air conditioners are distributed and installed, a plurality of units are centrally installed on the roof of a building or the like. Since the outdoor unit of the present embodiment is configured to blow upward, a plurality of outdoor units can be installed in such a manner that the side surface and the back surface (or the front surface) are in contact with each other, thereby reducing the space for centralized installation. Can be. Also, if the above-described unit is to be realized with the conventional configuration, it is necessary to increase the volume of the heat exchanger chamber, so that the depth of the unit becomes large and the installation area increases. In this embodiment, since the unit itself can be made smaller, a large space saving can be realized.

実施例6 この発明の実施例6について説明する。第6図は、天
井裏に据付けられるカセットタイプ室内機の軽量化、薄
形化を図ったもので本実施例を示す室内機の縦断面図で
ある。
Embodiment 6 Embodiment 6 of the present invention will be described. FIG. 6 is a longitudinal sectional view of an indoor unit according to the present embodiment, which is designed to reduce the weight and thickness of a cassette-type indoor unit installed behind a ceiling.

図において(16)は室内機筺体で、その下面中央部に
空気吸込口(11)、その前後左右の4面端部に空気吹出
口(12)を設けている。前記下面空気吸込口(11)上部
に、その吸込方向が下面の方向となるように熱交換装置
(13)を配設するとともに、前記熱交換装置を出た空気
を前記空気吹出口(11)に導くように曲がり風路が形成
されている。
In the figure, (16) is an indoor unit housing, which has an air inlet (11) at the center of the lower surface and air outlets (12) at the four front, rear, left and right ends. A heat exchange device (13) is arranged above the lower surface air inlet (11) so that the suction direction is the direction of the lower surface, and air exiting the heat exchange device is supplied to the air outlet (11). A curved air path is formed so as to lead to the wind.

次に上記室内機の動作について説明する。電動機
(4)の回転により、前記空気吸込口(11)から一次空
気を吸込み熱交換装置(13)に入る。
Next, the operation of the indoor unit will be described. The rotation of the electric motor (4) draws primary air from the air suction port (11) and enters the heat exchange device (13).

ここで熱交換された二次空気は曲がり風路を通り前記
吹出口(12)から4方向に吹出されることになる。
The secondary air subjected to the heat exchange passes through the curved air passage and is blown in four directions from the outlet (12).

一般に上記の室内機は据付性、振動等の問題により、
薄形化、軽量化が要求される。
In general, the above indoor units are difficult to install,
Thinner and lighter weights are required.

本実施例では、熱交換装置を応用することにより、上
記室内機の薄形化、軽量化が実現できるものである。
In the present embodiment, the indoor unit can be made thinner and lighter by applying a heat exchange device.

〔発明の効果〕〔The invention's effect〕

本発明は、以上説明したように構成されているので、
以下に記載されるような効果を奏する。
Since the present invention is configured as described above,
The following effects are obtained.

請求項1の発明は、空気調和機の小形化、軽量化、高
性能化、静音化が図れるという効果がある。
The invention of claim 1 has an effect that the size, weight, performance, and noise of the air conditioner can be reduced.

請求項2の発明は、空気調和機の室外機のコンパクト
化が図れるという効果がある。
The invention of claim 2 has an effect that the outdoor unit of the air conditioner can be made compact.

請求項3の発明は、空気調和機の室外機のエクステリ
ア化、設置スペースの低減が図れるという効果があり、
よりユニットの高性能化、静音化が図れる効果がある。
The invention according to claim 3 has the effect that the outdoor unit of the air conditioner can be exteriorized and the installation space can be reduced,
This has the effect of improving the performance of the unit and reducing the noise.

請求項4の発明は、空気調和機の天吊室外機の薄形
化、軽量化が図れるという効果がある。
The invention of claim 4 has the effect that the ceiling-hanging outdoor unit of the air conditioner can be made thinner and lighter.

請求項5の発明は、空気調和機の室外機の高性能化、
静音化が図れるという効果がある。
The invention of claim 5 improves the performance of the outdoor unit of the air conditioner,
This has the effect of reducing noise.

請求項6の発明は、空気調和機の室外機の複数台集中
設置における省スペース化が図れるという効果がある。
According to the invention of claim 6, there is an effect that space saving can be achieved when a plurality of outdoor units of the air conditioner are centrally installed.

請求項7の発明は、空気調和機の天井カセットタイプ
の室内機の薄形化、軽量化が図れるという効果がある。
The invention of claim 7 has the effect that the ceiling cassette type indoor unit of the air conditioner can be made thinner and lighter.

【図面の簡単な説明】[Brief description of the drawings]

第1図はこの発明の実施例1による空気調和機の室外機
を示す横断面構成図、第2図はこの発明の実施例2を示
す室外機の横断面構成図、第3図はこの発明の実施例3
を示す室外機の縦断面構成図、第4図はこの発明の実施
例4を示す室外機の縦断面構成図、第5図はこの発明の
実施例5を示室外機の縦断面図構成図、第6図はこの発
明の実例6を示す室内機縦断面構成図、第7図はこの発
明の熱交換装置の構成を示す断面構成図、第8図はこの
発明の熱交換装置の対流熱伝達率の変化を示す特性図、
第9図、第10図は従来の空気調和機の室外機を示す横断
面構成図である。 図において、(1)は伝熱体、(1a)は伝熱面、(2)
は円板、(3)は攪乱翼、(7)は室外機筺体、(8)
は圧縮機室、(9)は熱交換器室、(10)は圧縮機、
(11)は空気吸込口、(12)は空気吹出口、(13)は熱
交換装置、(14)は電気品、(15)はスクロールケーシ
ング、(16)は室内機筺体、(23)は円錐台、(24)は
電気品室である。 なお、各図中同一符号は同一又は相当部分を示す。
FIG. 1 is a cross-sectional configuration diagram showing an outdoor unit of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional configuration diagram of an outdoor unit showing Embodiment 2 of the present invention, and FIG. Example 3 of
FIG. 4 is a vertical sectional view of an outdoor unit showing a fourth embodiment of the present invention, and FIG. 5 is a vertical sectional view of an outdoor unit showing a fifth embodiment of the present invention. 6, FIG. 6 is a vertical sectional view showing the configuration of an indoor unit showing Example 6 of the present invention, FIG. 7 is a sectional view showing the configuration of a heat exchanger of the present invention, and FIG. 8 is convective heat of the heat exchanger of the present invention. A characteristic diagram showing a change in transmissivity,
FIG. 9 and FIG. 10 are cross-sectional configuration diagrams showing an outdoor unit of a conventional air conditioner. In the figure, (1) is a heat transfer body, (1a) is a heat transfer surface, (2)
Is a disk, (3) is a disturbance wing, (7) is an outdoor unit housing, (8)
Is a compressor room, (9) is a heat exchanger room, (10) is a compressor,
(11) is an air inlet, (12) is an air outlet, (13) is a heat exchange device, (14) is an electrical product, (15) is a scroll casing, (16) is an indoor unit housing, and (23) is The truncated cone, (24) is the electrical equipment room. The same reference numerals in the drawings indicate the same or corresponding parts.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐々木 芳男 長崎県長崎市丸尾町6番14号 三菱電機 株式会社長崎製作所内 (72)発明者 桜井 正志 東京都千代田区大手町2丁目6番2号 日本建鉄株式会社内 (56)参考文献 特開 昭63−29146(JP,A) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Sasaki 6-14 Maruo-cho, Nagasaki-shi, Nagasaki Mitsubishi Electric Corporation Nagasaki Works (72) Inventor Masashi Sakurai 2-6-1 Otemachi, Chiyoda-ku, Tokyo (56) References JP-A-63-29146 (JP, A)

Claims (7)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】熱交換器と送風機を有する空気調和機にお
いて、伝熱体及びこの伝熱体と対向して設けられ、これ
に対して相対運動する攪乱翼を備え、この攪乱翼の上記
伝熱体側端と上記伝熱体の伝熱面間との距離を、伝熱面
上の温度境界層厚みより小さくした熱交換装置を備えた
ことを特徴とする空気調和機。
1. An air conditioner having a heat exchanger and a blower, comprising: a heat transfer body; and a turbulent blade provided opposite to the heat transfer member and moving relative to the heat transfer member. An air conditioner comprising a heat exchange device in which a distance between a heat body side end and a heat transfer surface of the heat transfer body is smaller than a thickness of a temperature boundary layer on the heat transfer surface.
【請求項2】圧縮機室と熱交換器室とに区画形成されて
おり、前記熱交換器室の背面中央部に空気吸込口、左側
面及び前面に空気吹出口を設けるとともに、熱交換装置
を背面側が吸込方向になるように前記熱交換器室に配置
した室外機を有することを特徴とする特許請求の範囲第
1項記載の空気調和機。
2. A heat exchange unit which is defined by a compressor room and a heat exchanger room, wherein an air inlet is provided at a central portion of a rear surface of the heat exchanger room, and an air outlet is provided at a left side surface and a front surface of the heat exchanger room. 2. The air conditioner according to claim 1, further comprising an outdoor unit disposed in the heat exchanger room such that the rear side faces the suction direction.
【請求項3】中央部に熱交換器室、その左右にそれぞれ
電気品室、圧縮機室とが配置されており、前記熱交換器
室に熱交換装置を背面側が吸込方向になるように設ける
とともに、熱交換器室の背面中央部に空気吸込口、前面
には前記熱交換装置側の面に周囲部が円錐状に傾斜した
円錐台を形成し、前記熱交換装置を出た吹出空気を前記
円錐台の傾斜面と平行に流れるように吹出風路を構成
し、空気の流れ方向を外側に向かう斜め方向に変えるよ
うにした室外機を有することを特徴とする特許請求の範
囲第1項記載の空気調和機。
3. A heat exchanger room is provided at a central portion, and an electric appliance room and a compressor room are respectively disposed on the left and right sides thereof. A heat exchange device is provided in the heat exchanger room so that the back side is in the suction direction. At the same time, an air inlet is formed at the center of the rear surface of the heat exchanger chamber, and a truncated cone whose peripheral portion is formed in a conical shape on the surface on the side of the heat exchange device is formed at the front surface, and blown air that has exited the heat exchange device is formed. 2. The outdoor unit according to claim 1, further comprising: an outdoor unit configured to form a blowing air passage so as to flow in parallel with the inclined surface of the truncated cone, and to change an air flow direction to an oblique direction toward the outside. The air conditioner as described.
【請求項4】圧縮機室、熱交換器室とに区画形成されて
おり、前記熱交換器の下面中央部に空気吸込口、前面に
空気吹出口を設けるとともに、熱交換装置を下面側が吸
込方向になるように前記熱交換器室に配置し、前記熱交
換装置の回りに前記空気吹出口に連通したスクロールケ
ーシングを設けた室外機を有することを特徴とする特許
請求の範囲第1項記載の空気調和機。
4. An air intake port is provided at a central portion of a lower surface of the heat exchanger, an air outlet is provided at a front surface of the heat exchanger, and a lower surface of the heat exchanger is sucked at a lower portion of the heat exchanger. 2. The outdoor unit according to claim 1, further comprising: an outdoor unit disposed in the heat exchanger chamber so as to be oriented in the direction, and provided with a scroll casing connected to the air outlet around the heat exchange device. Air conditioner.
【請求項5】上部に熱交換器室、下部に圧縮機室が配置
され、前記熱交換器室の上面中央部に空気吸込口、前後
左右面に空気吹出口を設けるとともに、熱交換装置を上
面側が吸込方向になるように前記熱交換器室に配置した
室外機を有する特許請求の範囲第1項記載の空気調和
機。
5. A heat exchanger chamber is provided in an upper part, a compressor chamber is provided in a lower part, an air inlet is provided in a central part of an upper surface of the heat exchanger chamber, and air outlets are provided in front, rear, left and right surfaces, and a heat exchanger is provided. The air conditioner according to claim 1, further comprising an outdoor unit disposed in the heat exchanger room such that an upper surface side is in a suction direction.
【請求項6】上部に熱交換器室、下部に圧縮機室が配置
され、前記熱交換器室の前面中央部に空気吸込口、上部
に空気吹出口を設けるとともに、熱交換装置を前面側が
吸込方向になるように前記熱交換器室に配置し、前記熱
交換装置の回りに前記空気吹出口に連通したスクロール
ケーシングを設けた室外機を有することを特徴とする特
許請求の範囲第1項記載の空気調和機。
6. A heat exchanger chamber is disposed at an upper part, a compressor chamber is disposed at a lower part, an air inlet is provided at a central part of a front surface of the heat exchanger chamber, and an air outlet is provided at an upper part. 2. The outdoor unit according to claim 1, further comprising: an outdoor unit disposed in the heat exchanger chamber so as to be in a suction direction, and provided with a scroll casing connected to the air outlet around the heat exchange device. The air conditioner as described.
【請求項7】下部中央部に空気吸込口、その両端部に空
気吹出口を配設し、前記下面空気吸込口上部に熱交換装
置を下面が吸込方向になるように設けるとともに、前記
熱交換装置を出た吹出空気が前記空気吹出口に流れるよ
うに曲がり風路を形成した室内機を有する特許請求の範
囲第1項記載の空気調和機。
7. An air inlet port is provided at a lower central portion, and air outlet ports are provided at both ends thereof. A heat exchange device is provided above the lower air inlet port so that the lower surface is in a suction direction, and the heat exchange device is provided. 2. The air conditioner according to claim 1, further comprising an indoor unit having a curved air passage formed so that air blown out of the device flows to the air outlet.
JP2300050A 1990-11-06 1990-11-06 Air conditioner Expired - Lifetime JP2590605B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2300050A JP2590605B2 (en) 1990-11-06 1990-11-06 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2300050A JP2590605B2 (en) 1990-11-06 1990-11-06 Air conditioner

Publications (2)

Publication Number Publication Date
JPH04174223A JPH04174223A (en) 1992-06-22
JP2590605B2 true JP2590605B2 (en) 1997-03-12

Family

ID=17880097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2300050A Expired - Lifetime JP2590605B2 (en) 1990-11-06 1990-11-06 Air conditioner

Country Status (1)

Country Link
JP (1) JP2590605B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006084050A (en) * 2004-09-14 2006-03-30 Daikin Ind Ltd Outdoor machine of refrigeration device

Also Published As

Publication number Publication date
JPH04174223A (en) 1992-06-22

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