JP3309778B2 - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JP3309778B2 JP3309778B2 JP26966997A JP26966997A JP3309778B2 JP 3309778 B2 JP3309778 B2 JP 3309778B2 JP 26966997 A JP26966997 A JP 26966997A JP 26966997 A JP26966997 A JP 26966997A JP 3309778 B2 JP3309778 B2 JP 3309778B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- heat exchanger
- pipe
- refrigerant pipe
- shape
- 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 - Fee Related
Links
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、空気調和機に関
する。[0001] The present invention relates to an air conditioner.
【０００２】[0002]
【従来の技術】従来、空気調和機としては、室内熱交換
器および室外熱交換器の冷媒配管としてシームレス管を
用いていた。このシームレス管は、シーム管に比べて気
密性を高くできる利点があるが、内面に形成できる溝形
状が限られるので、内面への溝形成による熱交換性能の
向上がシーム管に比べて小さくなる欠点がある。2. Description of the Related Art Conventionally, as an air conditioner, a seamless pipe has been used as a refrigerant pipe of an indoor heat exchanger and an outdoor heat exchanger. This seamless pipe has the advantage that the airtightness can be increased as compared with the seam pipe, but since the groove shape that can be formed on the inner surface is limited, the improvement of the heat exchange performance by forming the groove on the inner surface is smaller than that of the seam pipe. There are drawbacks.
【０００３】したがって、特に、現行のＨＣＦＣ冷媒に
替えて、ＨＦＣ冷媒であるＲ４１０ＡやＲ４０７Ｃを採
用すると、冷媒特性上、理論ＣＯＰが低くて、運転の制
御を変更しても、規定の性能がでないという問題があ
る。[0003] Therefore, when HFC refrigerants R410A and R407C are employed in place of the existing HCFC refrigerants, the theoretical COP is low in terms of refrigerant characteristics, and the specified performance is not obtained even if the operation control is changed. There is a problem.
【０００４】[0004]
【発明が解決しようとする課題】そこで、この発明の目
的は、ＣＯＰを向上できる熱交換器を備えた空気調和機
を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner provided with a heat exchanger capable of improving COP.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明の空気調和機は、室外熱交換器の冷
媒配管と室内熱交換器の冷媒配管の内の一方の冷媒配管
の内面形状が、他方の冷媒配管の内面形状に比べて、冷
媒撹拌能力が大きな内面形状になっており、 冷媒撹拌能
力が大きな内面形状を持つ側の熱交換器の冷媒配管の内
径を他方の熱交換器の冷媒配管の内径よりも大きくした
ことを特徴としている。In order to achieve the above object, an air conditioner according to the first aspect of the present invention comprises a refrigerant pipe of one of a refrigerant pipe of an outdoor heat exchanger and a refrigerant pipe of an indoor heat exchanger. inner surface shape, in comparison with the inner surface shape of the other refrigerant pipe, the refrigerant stirred capacity has become a big inner surface shape, the refrigerant stirred ability
In the refrigerant pipe of the heat exchanger on the side with the large inner surface shape
The diameter is larger than the inner diameter of the refrigerant pipe of the other heat exchanger .
【０００６】この請求項１の発明では、一方の冷媒配管
の内面形状を他方の冷媒配管の内面形状よりも冷媒撹拌
能力が大きな形状にすることによって、室内もしくは室
外熱交換器の内の一方の熱伝達率を高めると共に、他方
の圧損を小さくする。これにより、全体としてＣＯＰを
向上させることができる。According to the first aspect of the present invention, one of the indoor or outdoor heat exchangers is formed by making the inner surface shape of one refrigerant pipe larger than the inner surface shape of the other refrigerant pipe. The heat transfer coefficient is increased and the other pressure loss is reduced. Thereby, the COP can be improved as a whole.
【０００７】また、この請求項１の発明では、冷媒撹拌
能力が大きな内面形状に起因して本来は圧損が大きくな
る冷媒配管の内径を大きくしたので、圧損を小さくし
て、ＣＯＰを向上させることができる。According to the first aspect of the present invention, since the inner diameter of the refrigerant pipe, which is originally large in pressure loss due to the inner shape of the refrigerant having large stirring capacity, is increased, the pressure loss is reduced to improve the COP. Can be.
【０００８】また、請求項２の発明の空気調和機は、室
外熱交換器の冷媒配管と室内熱交換器の冷媒配管の内の
一方の冷媒配管の内面形状が、他方の冷媒配管の内面形
状に比べて、冷媒撹拌能力が大きな内面形状になってお
り、 冷媒撹拌能力が大きな内面形状を持つ側の熱交換器
の冷媒配管がシーム管であり、 冷媒撹拌能力が大きな内
面形状を持つ側の熱交換器の冷媒配管の内径を他方の熱
交換器の冷媒配管の内径よりも大きくしたことを特徴と
している。[0008] An air conditioner according to a second aspect of the present invention is a room air conditioner.
Of the refrigerant pipe of the outside heat exchanger and the refrigerant pipe of the indoor heat exchanger
The inner shape of one refrigerant pipe is the same as that of the other refrigerant pipe.
The inner shape of the refrigerant has a larger stirring capacity than
Ri, heat exchangers on the side where refrigerant stirring ability has a large inner surface shape
Is a seam pipe and has a large refrigerant stirring capacity.
The inner diameter of the refrigerant pipe of the heat exchanger on the
It is characterized in that it is larger than the inner diameter of the refrigerant pipe of the exchanger .
【０００９】この請求項２の発明では、上記シーム管で
もって、冷媒撹拌能力が大きな内面形状を持つ側の熱交
換器を容易に作製できる。According to the second aspect of the present invention, it is possible to easily manufacture the heat exchanger having the inner surface shape having a large refrigerant stirring capacity by using the seam tube.
【００１０】また、この請求項２の発明では、冷媒撹拌
能力が大きな内面形状に起因して本来は圧損が大きくな
る冷媒配管の内径を大きくしたので、圧損を小さくし
て、ＣＯＰを向上させることができる。According to the second aspect of the present invention, since the inner diameter of the refrigerant pipe, in which the pressure loss is originally increased due to the inner shape having a large refrigerant stirring capacity, is increased, the pressure loss is reduced to improve the COP. Can be.
【００１１】また、請求項３の発明の空気調和機は、室
外熱交換器の冷媒配管がシーム管であり、室内熱交換器
の冷媒配管がシームレス管であり、 室外熱交換器の冷媒
配管の内面形状が、室内熱交換器の冷媒配管の内面形状
に比べて、冷媒撹拌能力が大きな内面形状になってお
り、 室内熱交換器の冷媒配管の内径よりも室外熱交換器
の冷媒配管の内径を大きくしたことを特徴としている。[0011] The air conditioner of the third aspect of the present invention, the chamber
The refrigerant pipe of the external heat exchanger is a seam pipe, and the indoor heat exchanger
Is a seamless pipe, and the refrigerant in the outdoor heat exchanger
The inner shape of the piping is the inner shape of the refrigerant pipe of the indoor heat exchanger
The inner shape of the refrigerant stirring capacity is larger than
Of the outdoor heat exchanger than the inside diameter of the refrigerant pipe of the indoor heat exchanger.
Is characterized in that the inner diameter of the refrigerant pipe is increased .
【００１２】この請求項３の発明では、室内熱交換器の
冷媒配管がシームレス管であるから、この室内側の冷媒
配管に、設計圧力以上の高圧が生じた場合でも、室外側
に冷媒漏れが生じる危険を少なくできる。According to the third aspect of the invention, since the refrigerant pipe of the indoor heat exchanger is a seamless pipe, even if a high pressure exceeding the design pressure is generated in the refrigerant pipe on the indoor side, the refrigerant leaks to the outdoor side. The risk of occurrence can be reduced.
【００１３】また、この請求項３の発明では、室外熱交
換器の冷媒配管がシーム管で構成されているから、冷媒
撹拌能力が大きな内面形状に容易に加工することがで
き、製作が容易になる。According to the third aspect of the present invention, since the refrigerant pipe of the outdoor heat exchanger is formed of a seam pipe, it can be easily processed into an inner surface shape having a large refrigerant stirring capacity, which facilitates manufacture. Become.
【００１４】また、この請求項３の発明では、冷媒撹拌
能力が大きな内面形状に起因して本来は圧損が大きくな
る室外熱交換器の冷媒配管の内径を大きくしたので、圧
損を小さくして、ＣＯＰを向上させることができる。According to the third aspect of the present invention, since the inner diameter of the refrigerant pipe of the outdoor heat exchanger in which the pressure loss is originally increased due to the inner shape having the large refrigerant stirring capacity is increased, the pressure loss is reduced. COP can be improved.
【００１５】[0015]
【発明の実施の形態】以下、この発明を図示の実施の形
態により詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
【００１６】図１（Ａ）に、この発明の空気調和機の実
施の形態の室外熱交換器を構成する冷媒配管１の断面を
示す。この冷媒配管１の内周面２には、図１（Ｂ）に示
すように、Ｗ溝と呼ばれる溝３が冷媒流動方向つまり配
管１の軸方向に向かって所定間隔で配列されている。こ
の溝３は、配管１の軸方向と交差する方向に折れ線状に
延びている。この冷媒配管１はシーム管（電縫管）であ
る。また、この冷媒配管１の内径を８ｍｍとし、室内熱
交換器（図示せず）の冷媒配管の内径を６ｍｍとした。
また、この室内熱交換器の冷媒配管はシームレス管とし
た。このシームレス管で構成された室内熱交換器の冷媒
配管の内面には、上記室外熱交換器の冷媒配管１の内面
の溝３に比べて浅い溝が形成されている。FIG. 1A shows a cross section of a refrigerant pipe 1 constituting an outdoor heat exchanger according to an embodiment of the air conditioner of the present invention. As shown in FIG. 1B, grooves 3 called W grooves are arranged at predetermined intervals in the refrigerant flow direction, that is, in the axial direction of the pipe 1, on the inner peripheral surface 2 of the refrigerant pipe 1. The groove 3 extends in a polygonal line in a direction crossing the axial direction of the pipe 1. This refrigerant pipe 1 is a seam pipe (electric resistance welded pipe). The inner diameter of the refrigerant pipe 1 was 8 mm, and the inner diameter of the refrigerant pipe of the indoor heat exchanger (not shown) was 6 mm.
The refrigerant pipe of the indoor heat exchanger was a seamless pipe. A groove shallower than the groove 3 on the inner surface of the refrigerant pipe 1 of the outdoor heat exchanger is formed on the inner surface of the refrigerant pipe of the indoor heat exchanger constituted by the seamless pipe.
【００１７】そして、この実施の形態では、冷媒として
Ｒ４１０Ａを使用した。In this embodiment, R410A is used as the refrigerant.
【００１８】この実施の形態では、室外熱交換器の冷媒
配管１の内周面２の形状をＷ溝３にして、室内熱交換器
の冷媒配管の内周面の浅溝形状に比べて、冷媒撹拌能力
が大きな形状にした。このＷ溝３は、凝縮器として使用
されるとき、内周面２に形成された液膜５を飛び散らせ
て解消させ、蒸発器として使用されるときも冷媒を撹拌
するので、冷媒撹拌能力が大きく、伝熱促進効果が大き
くなり、熱交換効率が向上する。In this embodiment, the shape of the inner peripheral surface 2 of the refrigerant pipe 1 of the outdoor heat exchanger is set to the W groove 3, and the shape of the inner peripheral surface of the refrigerant pipe of the indoor heat exchanger is smaller than that of the shallow groove. Refrigerant agitation capacity is large. When used as a condenser, the W groove 3 scatters and eliminates the liquid film 5 formed on the inner peripheral surface 2 and stirs the refrigerant even when used as an evaporator. As a result, the heat transfer promoting effect is increased, and the heat exchange efficiency is improved.
【００１９】したがって、室外熱交換器の熱伝達率を高
めることができると共に、室内熱交換器の圧損を小さく
できる。これにより、全体としてのＣＯＰを向上させる
ことができる。Therefore, the heat transfer coefficient of the outdoor heat exchanger can be increased, and the pressure loss of the indoor heat exchanger can be reduced. Thereby, the COP as a whole can be improved.
【００２０】また、この実施の形態では、室外熱交換器
の冷媒配管１をシーム管にしたから、内周面２に深いＷ
溝３を容易に形成できる。一方、室内熱交換器の冷媒配
管をシームレス管にしたから、気密性，液密性を向上で
きる。In this embodiment, since the refrigerant pipe 1 of the outdoor heat exchanger is a seam pipe, the inner peripheral surface 2 has a deep W
The groove 3 can be easily formed. On the other hand, since the refrigerant pipe of the indoor heat exchanger is a seamless pipe, airtightness and liquid tightness can be improved.
【００２１】さらに、この実施の形態では、冷媒撹拌能
力の高い内面形状にし易いシーム管で構成した冷媒配管
１の内径（８ｍｍ）を、冷媒撹拌能力の高い内面形状に
し難いシームレス管で構成した室内熱交換器の冷媒配管
の内径（６ｍｍ）よりも大きくした。したがって、シー
ム管を用いた室外熱交換器の熱交換能力を、大きな内径
と高撹拌能力の内面形状（Ｗ溝３）との相乗作用でもっ
て特に向上できる。また、この実施の形態では、室内熱
交換器の冷媒配管としてシームレス管を採用すると共
に、室外熱交換器の冷媒配管より小径のものとすること
で、気密性および耐圧性能の向上を図れる。Further, in this embodiment, the inner diameter (8 mm) of the refrigerant pipe 1 constituted by a seam pipe which is easy to be formed into an inner surface having a high refrigerant stirring capacity is changed to a room formed by a seamless pipe which is difficult to be formed into an inner surface having a high refrigerant stirring ability. It was larger than the inner diameter (6 mm) of the refrigerant pipe of the heat exchanger. Therefore, the heat exchange capacity of the outdoor heat exchanger using the seam pipe can be particularly improved by the synergistic effect of the large inner diameter and the inner surface shape (W groove 3) having a high stirring capacity. In this embodiment, the airtightness and the pressure resistance can be improved by adopting a seamless pipe as the refrigerant pipe of the indoor heat exchanger and making the pipe smaller in diameter than the refrigerant pipe of the outdoor heat exchanger.
【００２２】さらに、この実施の形態では、冷媒として
Ｒ４１０Ａを使用したから、ＨＣＦＣ２２を使用した場
合に比べて、圧損を小さくできる。したがって、室外熱
交換器の冷媒配管１の内周面２を冷媒撹拌能力が大きな
Ｗ溝３にしたことで増えた圧損を相殺することができ、
能力向上を図れる。Further, in this embodiment, since R410A is used as the refrigerant, the pressure loss can be reduced as compared with the case where HCFC22 is used. Therefore, it is possible to offset the increased pressure loss caused by forming the inner peripheral surface 2 of the refrigerant pipe 1 of the outdoor heat exchanger into the W groove 3 having a large refrigerant stirring capacity,
Improve ability.
【００２３】尚、この実施の形態では、室外熱交換器の
シーム管を冷媒撹拌能力が大きな内面形状としたが、室
内熱交換器の冷媒配管を構成するシームレス管の内面形
状を冷媒撹拌能力が大きな内面形状としてもよい。この
場合には、室内熱交換器の熱交換能力を向上できる。も
っとも、この場合、シームレス管の内周面の加工が困難
である。In this embodiment, the seam pipe of the outdoor heat exchanger has an inner surface shape having a large refrigerant stirring capacity. However, the seamless pipe constituting the refrigerant pipe of the indoor heat exchanger has an inner surface shape having the refrigerant stirring ability. It may have a large inner surface shape. In this case, the heat exchange capacity of the indoor heat exchanger can be improved. However, in this case, it is difficult to process the inner peripheral surface of the seamless pipe.
【００２４】また、室内熱交換器の冷媒配管をシーム管
で構成し、室外熱交換器の冷媒配管をシームレス管で構
成してもよい。この場合には、室内熱交換器の冷媒配管
の内周面を冷媒撹拌能力の高い形状にし易くなるから、
室内熱交換器の熱交換能力の向上を図れる。また、室外
熱交換器の冷媒配管の気密性，液密性の向上を図れる。Further, the refrigerant pipe of the indoor heat exchanger may be constituted by a seam pipe, and the refrigerant pipe of the outdoor heat exchanger may be constituted by a seamless pipe. In this case, the inner peripheral surface of the refrigerant pipe of the indoor heat exchanger is easily formed into a shape having high refrigerant stirring capacity,
The heat exchange capacity of the indoor heat exchanger can be improved. Further, the airtightness and liquid tightness of the refrigerant pipe of the outdoor heat exchanger can be improved.
【００２５】また、上記実施の形態では、冷媒撹拌能力
の高い内周面の形状としてＷ溝形状を用いたが、冷媒流
れと交差するような他の溝形状を採用してもよい。Further, in the above embodiment, the W-shaped groove is used as the shape of the inner peripheral surface having a high refrigerant stirring capacity. However, another groove shape which intersects the refrigerant flow may be employed.
【００２６】[0026]
【発明の効果】以上より明らかなように、請求項１の発
明の空気調和機は、一方の冷媒配管の内面形状を他方の
冷媒配管の内面形状よりも冷媒撹拌能力が大きな形状に
することによって、室内もしくは室外熱交換器の内の一
方の熱伝達率を高めると共に、他方の圧損を小さくす
る。これにより、全体としてＣＯＰを向上させることが
できる。また、この請求項１の発明では、冷媒撹拌能力
が大きな内面形状に起因して本来は圧損が大きくなる冷
媒配管の内径を大きくしたので、圧損を小さくして、Ｃ
ＯＰを向上させることができる。As is apparent from the above description, the air conditioner according to the first aspect of the present invention has a structure in which one of the refrigerant pipes has an inner surface shape larger than the inner surface shape of the other refrigerant pipe. In addition, the heat transfer coefficient of one of the indoor or outdoor heat exchangers is increased, and the pressure loss of the other is reduced. Thereby, the COP can be improved as a whole. According to the first aspect of the present invention, since the inner diameter of the refrigerant pipe, which originally has a large pressure loss due to the inner shape having a large refrigerant stirring capacity, is increased, the pressure loss is reduced.
OP can be improved.
【００２７】また、請求項２の発明の空気調和機は、冷
媒撹拌能力が大きな内面形状を持つ側の熱交換器の冷媒
配管がシーム管であり、冷媒撹拌能力が大きな内面形状
を持つ側の熱交換器の冷媒配管の内径を他方の熱交換器
の冷媒配管の内径よりも大きくした。[0027] The air conditioner of the second aspect of the present invention, cold
Refrigerant in the heat exchanger on the side with the inner surface shape with a large medium stirring capacity
Piping is a seam pipe, inner surface shape with large refrigerant stirring capacity
The inside diameter of the refrigerant pipe of the heat exchanger on the side with the other heat exchanger
Larger than the inner diameter of the refrigerant pipe .
【００２８】この請求項２の発明では、上記シーム管で
もって、冷媒撹拌能力が大きな内面形状を持つ側の熱交
換器を容易に作製できる。また、この請求項２の発明で
は、冷媒撹拌能力が大きな内面形状に起因して本来は圧
損が大きくなる冷媒配管の内径を大きくしたので、圧損
を小さくして、ＣＯＰを向上させることができる。 According to the second aspect of the present invention, the seam pipe is
As a result, heat exchange on the side with the inner surface
A heat exchanger can be easily manufactured. In the invention of claim 2,
Is inherently pressurized due to the inner surface shape with large refrigerant stirring capacity.
The internal diameter of the refrigerant pipe, which increases the loss, has been increased.
And COP can be improved.
【００２９】また、請求項３の発明の空気調和機は、室
内熱交換器の冷媒配管がシームレス管であるから、この
室内側の冷媒配管に、設計圧力以上の高圧が生じた場合
でも、室外側に冷媒漏れが生じる危険を少なくできる。
また、この請求項３の発明では、室外熱交換器の冷媒配
管がシーム管で構成されているから、冷媒撹拌能力が 大
きな内面形状に容易に加工することができ、製作が容易
になる。また、この請求項３の発明では、冷媒撹拌能力
が大きな内面形状に起因して本来は圧損が大きくなる室
外熱交換器の冷媒配管の内径を大きくしたので、圧損を
小さくして、ＣＯＰを向上させることができる。 [0029] The air conditioner of the third aspect of the present invention, the chamber
Since the refrigerant pipe of the internal heat exchanger is a seamless pipe,
When a high pressure exceeding the design pressure occurs in the refrigerant pipe on the indoor side
However, the danger of the refrigerant leaking to the outdoor side can be reduced.
According to the third aspect of the present invention, the refrigerant distribution of the outdoor heat exchanger is performed.
Since the pipe is composed of a seam pipe, the refrigerant stirring capacity is large.
Can be easily processed into a large inner surface shape, making it easy to manufacture
become. Further, according to the third aspect of the present invention, the refrigerant stirring capacity
Chamber where pressure loss is originally large due to large inner surface shape
The internal diameter of the refrigerant pipe of the external heat exchanger has been increased,
By reducing the size, COP can be improved.
【図１】 図１（Ａ）はこの発明の空気調和機の実施の
形態の室外熱交換器の冷媒配管の断面図であり、図１
（Ｂ）は上記冷媒配管の内面に形成された溝形状を表わ
す内周面の展開図である。FIG. 1A is a cross-sectional view of a refrigerant pipe of an outdoor heat exchanger according to an embodiment of the air conditioner of the present invention.
(B) is a development view of an inner peripheral surface showing a groove shape formed on an inner surface of the refrigerant pipe.
１…冷媒配管、２…内周面、３…溝、５…液膜。 1 ... refrigerant pipe, 2 ... inner peripheral surface, 3 ... groove, 5 ... liquid film.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F24F 5/00 F28F 1/40 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) F24F 5/00 F28F 1/40
Claims (3)
交換器の冷媒配管の内の一方の冷媒配管（１）の内面形
状が、他方の冷媒配管の内面形状に比べて、冷媒撹拌能
力が大きな内面形状（３）になっており、 冷媒撹拌能力が大きな内面形状（３）を持つ側の熱交換
器の冷媒配管(１)の内径を他方の熱交換器の冷媒配管の
内径よりも大きくしたことを特徴とする空気調和機。 1. A refrigerant pipe (1) of an outdoor heat exchanger and indoor heat
Inner surface of one refrigerant pipe (1) of the refrigerant pipes of the exchanger
The shape of the refrigerant is smaller than the inner shape of the other refrigerant pipe.
Heat exchange on the side with the inner shape (3), which has a large internal shape (3) with large force
Of the refrigerant pipe (1) of the heat exchanger to the refrigerant pipe of the other heat exchanger.
An air conditioner characterized by being larger than the inner diameter.
交換器の冷媒配管の内の一方の冷媒配管（１）の内面形
状が、他方の冷媒配管の内面形状に比べて、冷媒撹拌能
力が大きな内面形状（３）になっており、 冷媒撹拌能力が大きな内面形状（３）を持つ側の熱交換
器の冷媒配管(１)がシーム管であり、 冷媒撹拌能力が大きな内面形状（３）を持つ側の熱交換
器の冷媒配管(１)の内径を他方の熱交換器の冷媒配管の
内径よりも大きくしたことを特徴とする空気調和機。 2. The refrigerant pipe (1) of the outdoor heat exchanger and the indoor heat
Inner surface of one refrigerant pipe (1) of the refrigerant pipes of the exchanger
The shape of the refrigerant is smaller than the inner shape of the other refrigerant pipe.
Heat exchange on the side with the inner shape (3), which has a large internal shape (3) with large force
The heat exchanger on the side with the inner shape (3) where the refrigerant pipe (1) is a seam pipe and the refrigerant stirring capacity is large
Of the refrigerant pipe (1) of the heat exchanger to the refrigerant pipe of the other heat exchanger.
An air conditioner characterized by being larger than the inner diameter.
であり、室内熱交換器の冷媒配管がシームレス管であ
り、 室外熱交換器の冷媒配管(１)の内面形状が、室内熱交換
器の冷媒配管の内面形状に比べて、冷媒撹拌能力が大き
な内面形状（３）になっており、 室内熱交換器の冷媒配管の内径よりも室外熱交換器の冷
媒配管(１)の内径を大きくしたことを特徴とする空気調
和機。 The refrigerant pipe (1) of the outdoor heat exchanger is a seam pipe.
The refrigerant pipe of the indoor heat exchanger is a seamless pipe.
Ri, the inner surface shape of the refrigerant pipe of the outdoor heat exchanger (1) is, the indoor heat exchanger
Refrigerant stirring capacity is larger than the inner shape of the refrigerant pipe
Inner surface shape (3), the cooling of the outdoor heat exchanger is smaller than the inner diameter of the refrigerant pipe of the indoor heat exchanger.
Air conditioner characterized by increasing the inner diameter of the medium pipe (1)
Japanese machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26966997A JP3309778B2 (en) | 1997-10-02 | 1997-10-02 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26966997A JP3309778B2 (en) | 1997-10-02 | 1997-10-02 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11108399A JPH11108399A (en) | 1999-04-23 |
| JP3309778B2 true JP3309778B2 (en) | 2002-07-29 |
Family
ID=17475567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26966997A Expired - Fee Related JP3309778B2 (en) | 1997-10-02 | 1997-10-02 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3309778B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9651314B2 (en) | 2007-11-28 | 2017-05-16 | Mitsubishi Electric Corporation | Air conditioner with grooved inner heat exchanger tubes and grooved outer heat exchanger tubes |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59164889A (en) * | 1983-03-09 | 1984-09-18 | Toshiba Corp | Heat exchanger tube and manufacture thereof |
| JPH02161267A (en) * | 1988-12-15 | 1990-06-21 | Hitachi Cable Ltd | Heat pump air conditioner |
| JPH06147532A (en) * | 1992-11-12 | 1994-05-27 | Matsushita Refrig Co Ltd | Air conditioner |
| JPH09145097A (en) * | 1995-11-24 | 1997-06-06 | Sanyo Electric Co Ltd | Air conditioning equipment |
| JPH09215966A (en) * | 1996-02-09 | 1997-08-19 | Mitsubishi Shindoh Co Ltd | Lengthy article cleaning apparatus |
-
1997
- 1997-10-02 JP JP26966997A patent/JP3309778B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9651314B2 (en) | 2007-11-28 | 2017-05-16 | Mitsubishi Electric Corporation | Air conditioner with grooved inner heat exchanger tubes and grooved outer heat exchanger tubes |
| US9664455B2 (en) | 2007-11-28 | 2017-05-30 | Mitsubishi Electric Corporation | Air conditioner with internally grooved heat exchanger tubes optimized for an indoor heat exchanger and an outdoor heat exchanger |
| US9664456B2 (en) | 2007-11-28 | 2017-05-30 | Mitsubishi Electric Corporation | Air conditioner |
| US9714795B2 (en) | 2007-11-28 | 2017-07-25 | Mitsubishi Electric Corporation | Air conditioner |
| US9791218B2 (en) | 2007-11-28 | 2017-10-17 | Mitsubishi Electric Corporation | Air conditioner with grooved inner heat exchanger tubes and grooved outer heat exchanger tubes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11108399A (en) | 1999-04-23 |
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