JP3807217B2 - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
JP3807217B2
JP3807217B2 JP2000300102A JP2000300102A JP3807217B2 JP 3807217 B2 JP3807217 B2 JP 3807217B2 JP 2000300102 A JP2000300102 A JP 2000300102A JP 2000300102 A JP2000300102 A JP 2000300102A JP 3807217 B2 JP3807217 B2 JP 3807217B2
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JP
Japan
Prior art keywords
muffler
air conditioner
conditioner according
pipe
side pipe
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
Application number
JP2000300102A
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Japanese (ja)
Other versions
JP2002107005A (en
Inventor
万希子 十倉
晃 西田
聡 十倉
泰明 松本
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.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP2000300102A priority Critical patent/JP3807217B2/en
Publication of JP2002107005A publication Critical patent/JP2002107005A/en
Application granted granted Critical
Publication of JP3807217B2 publication Critical patent/JP3807217B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Compressor (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、空気調和機に用いられるマフラーに関するものである。
【0002】
【従来の技術】
図10は再熱除湿運転を構成する冷凍サイクルの一例を示す。圧縮機6を出た高温高圧の冷媒は、室外の熱交換器9を通って、室内機へと供給される。冷房運転の場合四方弁8を経て、室外の絞り装置10にて低温低圧の状態で室内へ冷媒が供給されるが、再熱除湿運転の場合は、前記室外の絞り装置10は、バイパスされるか、もしくは膨張弁11の場合は全開にて使用され、中温高圧の状態で冷媒は室内へと供給される。
【0003】
そして室内機熱交換器1の加熱部1aを通過後、室内の絞り装置2にて低温低圧の状態となり、前記室内熱交換器1の冷却部1bへと供給される。
【0004】
従来の再熱除湿機能を有する空気調和機の場合、室内側に前記絞り装置2を有するため、スペ−ス確保が困難であり、静音装置の搭載が困難であった。
【0005】
【発明が解決しようとする課題】
しかしながら、上記従来の空気調和機の構成では冷凍サイクルにおいて再熱除湿運転の際、内外気温・風量設定・運転周波数に応じて、室内機の絞り装置に入る冷媒状態に差を生じ、冷媒が気体、液体の状態で交互に流れ、大きな気泡となり、前記絞り装置に吸い込まれるため冷媒音が発生し、快適な運転状態を実現することが出来なかった。
【0006】
本発明は、このような従来の課題を解決するもので、冷媒による異音の発生を低減し快適な運転状態を実現することを目的とするものである。
【0007】
【課題を解決するための手段】
上記目的を達成するために、請求項1記載の空気調和機は、室内機にマフラーを備え、前記マフラーの前後の冷媒配管を前記マフラー本体内部に突出し、かつ、入口側配管が出口側配管の下方に位置することを特徴とする。
【0008】
請求項2記載の空気調和機は、請求項1記載の空気調和機において、前記マフラーが再熱機能を有することを特徴とする。
【0009】
請求項3記載の空気調和機は、請求項1または2記載の空気調和機において、前記マフラーの内径が前記マフラー前後の冷媒配管の内径より大きくしたことを特徴とする。
【0010】
請求項4記載の空気調和機は、請求項1〜3いずれか1項記載の空気調和機において、前記マフラーを横置きとしたことを特徴とする。
【0011】
請求項5記載の空気調和機は、請求項1〜4いずれか1項記載の空気調和機において、熱交換器を加熱部と冷却部とに分離する絞り装置を有し、前記絞り装置の上流側にマフラーを設けたことを特徴とする。
【0012】
請求項6記載の空気調和機は、請求項1〜5いずれか1項記載の空気調和機において、前記入り口側配管と前記出口側配管のそれぞれの先端部分を重ね合うように構成することを特徴とする。
【0013】
請求項7記載の空気調和機は、請求項1〜6いずれか1項記載の空気調和機において、前記マフラーの本体内部に突出した前記入り口側配管または前記出口側配管の先端を下から上へ斜めにカットすることを特徴とする。
【0014】
請求項8記載の空気調和機は、請求項7記載の空気調和機において、前記マフラーの本体内部に突出した先端を下から上へ斜めにカットした前記側配管の形状に合わせ、前記マフラー本体の端部を変形することを特徴とする。
【0015】
請求項9記載の空気調和機は、請求項1〜8いずれか1項記載の空気調和機において、前記マフラー本体の肉厚を前記冷媒配管の肉厚よりも大きくすることを特徴とする。
【0016】
【発明の実施の形態】
以下、添付図面を参照して本発明の好適な実施の形態を説明する。
【0017】
(実施の形態1)
図1は本発明の実施の形態1における冷凍サイクルの一例を示す系統図であり、基本的には図10に示した従来の空気調和機と同じ構成であるので同一構成部品には同一番号を付して詳細な説明を省略する。
【0018】
図1において冷凍サイクルの熱交換器1は室内絞り装置2により加熱部1aと冷却部1bとに分離される。その前記室内絞り装置2の上流側にマフラー3を連結して構成されている。マフラー3は図2のような構成となっていた。
【0019】
すなわち、左右方向に延びる円筒形状のマフラー本体3aにそれぞれ入り口側
配管4および出口側配管5を連結し前記マフラー本体3aの内径を前記入り口側配管4および前記出口側配管5の内径より拡大して構成されている。7は流入冷媒である。
【0020】
このように構成されたマフラーにおいて、前記入り口側配管4からの流入冷媒7は前記マフラー本体3aの中で状態を安定させ前記流入冷媒7が大きな気泡の状態で前記出口配管5に入ることを防止できる。またマフラー3を左右方向に伸びる円筒状にすることにより、連結する配管の曲げを減らすことができ、省スペースでの収納を可能にすることができる。
【0021】
(実施の形態2)
以下の説明において、上述した実施の形態1と同一の要素については同一の参照符号を付すことによりその説明を省略する。なお冷凍サイクルについては、実施の形態1と同様であり図1の系統図を共用する。
【0022】
図3は本発明の実施の形態における空気調和機のマフラーの例を示す断面図である。図3に示すように実施の形態1のマフラーにおいて、左右方向に延びる円筒形状のマフラー本体3aの両端の片側に入り口側配管4またその反対側に出口側配管5を接続するものである。
【0023】
このように構成されたマフラーにおいて、前記入り口側配管4からの流入冷媒7は前記マフラー本体3aの中で状態を安定させ前記流入冷媒7が大きな気泡の状態で前記出口配管5に入ることを防止できる。またマフラー3に接続する配管の曲げを減らすことができ、省スペースでの収納を可能にすることができる。
【0024】
(実施の形態3)
図4は本発明の実施の形態3における空気調和機のマフラーの例を示す断面図である。図4に示すように第2の実施の形態のマフラーにおいて、入り口側配管4がマフラー本体3a内部に突出し、同様に前記マフラー本体3a内部に突出した出口側配管5の下方に位置するように接続されているものである。
【0025】
このように構成されたマフラーにおいて、前記入り口側配管4からの流入冷媒7が直接、前記出口側配管5へ流れ出ることなく、前記マフラー本体3aの中で状態を安定させ前記流入冷媒7が大きな気泡の状態で出口配管5に入ることを防止できる。
【0026】
(実施の形態4)
図5は本発明の実施の形態における空気調和機のマフラーの例を示す断面図である。図5に示すように実施の形態2のマフラーにおいて、入り口側配管4がマフラー本体3a内部に突出し、同様に前記マフラー本体3a内部に突出した出口側配管5の下方に位置するように接続されているものであり、かつ前記入り口側配管の先端4aと前記出口側配管の先端5aは重ね合うように位置している。
【0027】
このように構成されたマフラーにおいて、前記入り口側配管4からの流入冷媒7が直接、前記出口側配管5へ流れ出ることなく、前記マフラー本体3aの中で状態を安定させ前記流入冷媒7が大きな気泡の状態で出口配管5に入ることを防止できる。
【0028】
(実施の形態5)
図6は本発明の実施の形態5における空気調和機のマフラーの例を示す断面図である。図6に示すように実施の形態4のマフラーにおいて、入り口側配管の先端4aを下から上へカットしたものである。このように構成されたマフラーにおいて、入り口側配管4からの流入冷媒7がマフラー本体3aへ入る際に液切れが良くなり、前記流入冷媒7の滴下時における気泡の発生が防止できる。
【0029】
(実施の形態6)
図7は本発明の実施の形態6における空気調和機のマフラーの例を示す断面図である。図7に示すように実施の形態4のマフラーにおいて、出口側配管の先端5aを下から上へカットしたものである。
【0030】
このように構成されたマフラーにおいて、入り口側配管4からの流入冷媒7がマフラー本体3aの中で状態を安定させるまでの大きな気泡の状態で出口配管5に入る ことを防止できる。
【0031】
(実施の形態7)
図8は本発明の実施の形態7における空気調和機のマフラーの例を示す断面図である。図8に示すように実施の形態6のマフラーにおいて、先端5aを下から上へカットした出口側配管5の形状に合わせ、左右方向に延びる円筒形状のマフラー本体3aの端部3bを変形し傾斜を設けたものである。
【0032】
このように構成されたマフラーにおいて、前記マフラー本体3aの内面3cと前記出口配管先端5aの隙間を限定し、入り口側配管4からの流入冷媒7が前記マフラー本体3aの中で状態を安定させるまでの大きな気泡の状態で前記出口配管5に入ることを防止できる。
【0033】
(実施の形態8)
図9は本発明の実施の形態8における空気調和機のマフラーの例を示す断面図である。図9に示すように実施の形態2のマフラーにおいて、マフラー本体3aの肉厚3dを入り口配管4出口配管5の肉厚4b、5bよりも上げたものである。
【0034】
このように構成されたマフラーにおいて、前記マフラー本体3a内部での前記入り口配管4からの流入冷媒7の滴下音および衝突音が外に漏れにくく、さらに前記出口配管5への吸い込みによる異音が漏れることを防止できる。
【0035】
【発明の効果】
上記実施例から明らかなように、請求項1〜5記載の本発明は、絞り装置の上流側に、
内径が前後の冷媒配管の内径より大きく、横置きににマフラーを設けるもので、この構成によれば流入冷媒が大きな気泡の状態で出口配管から前記絞り装置に入ることを防止でき、快適な運転状態を実現できるという効果を奏する。また入り口側配管がマフラー本体内部に突出し、同様に前記マフラー本体内部に突出した出口側配管の下方に位置するように接続されているもので、この構成によれば前記入り口側配管からの流入冷媒が直接、前記出口側配管へ流れ出ることなく、マフラー本体の中で状態を安定させ前記流入冷媒が大きな気泡の状態で出口配管から絞り装置に入ることを防止でき、快適な運転状態を実現できるという効果を奏する。またマフラーを横置き円筒状にすることにより、連結する配管の曲げを減らすことができ、省スペースでの収納を可能にすることができるという効果を奏する。
【0036】
また、請求項6記載の本発明は、入り口側配管がマフラー本体内部に突出し、同様に前記マフラー本体内部に突出した出口側配管の下方に位置するように接続されているものであり、かつ前記入り口側配管の先端と前記出口側配管の先端は重ね合うように位置しているもので、この構成によれば、前記入り口側配管からの流入冷媒が直接、前記出口側配管へ流れ出ることなく、マフラー本体の中で状態を安定させ前記流入冷媒が大きな気泡の状態で前記出口配管から絞り装置に入ることを防止でき、快適な運転状態を実現できるという効果を奏する。
【0037】
また、請求項7記載の本発明は、入り口側の配管の先端を下から上へカットしたものでは、前記入り口側配管からの流入冷媒がマフラー本体へ入る際に液切れが良くなり、前記流入冷媒の滴下時の気泡の発生が防止でき、快適な運転状態を実現できるという効果を奏する。
【0038】
また、出口側配管の先端を下から上へカットしたものでは、入り口側配管からの流入冷媒がマフラー本体の中で状態を安定させるまでの大きな気泡の状態で出口配管から絞り装置に入ることを防止でき、快適な運転状態を実現できるという効果を奏する。
【0039】
また、請求項8記載の本発明は、先端を下から上へカットした出口側配管の形状に合わせ、左右方向に延びる円筒形状のマフラー本体の端部を変形し傾斜を設けたものであり、この構成によれば、マフラー本体の内面と前記出口配管先端の隙間を限定し、入り口側配管からの流入冷媒がマフラー本体の中で状態を安定させるまでの大きな気泡の状態で前記出口配管から絞り装置に入ることを防止でき、快適な運転状態を実現できるという効果を奏する。
【0040】
また、請求項9記載の本発明は、マフラー本体の肉厚を入り口配管および出口配管の肉厚よりも大きくしたものであり、この構成によれば、マフラー本体内部での入り口配管からの流入冷媒の滴下音および衝突音が外に漏れにくく、さらに出口配管への吸い込みによる異音が漏れることを防止でき、快適な運転状態を実現できるという効果を奏する。
【図面の簡単な説明】
【図1】 本発明の実施の形態1を示す冷凍サイクル図
【図2】 同マフラーの断面図
【図3】 本発明の実施の形態2を示すマフラーの断面図
【図4】 本発明の実施の形態3を示すマフラーの断面図
【図5】 本発明の実施の形態4を示すマフラーの断面図
【図6】 本発明の実施の形態5を示すマフラーの断面図
【図7】 本発明の実施の形態6を示すマフラーの断面図
【図8】 本発明の実施の形態7を示すマフラーの断面図
【図9】 本発明の実施の形態8を示すマフラーの断面図
【図10】 従来例を示す冷凍サイクル図
【符号の説明】
1 室内熱交換器
1a 室内熱交換器の加熱部
1b 室内熱交換器の冷却部
2 室内絞り装置
3 マフラー
3a マフラー本体
3b マフラー本体端部
3c マフラー本体内面
4 入り口配管
4a 入り口配管の先端
4b 入り口配管の肉厚
5 出口配管
5a 出口配管の先端
5b 出口配管の肉厚
6 圧縮機
7 流入冷媒
8 四方弁
9 室外熱交換器
10 室外絞り装置
11 膨張弁
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a muffler used in an air conditioner.
[0002]
[Prior art]
FIG. 10 shows an example of the refrigeration cycle constituting the reheat dehumidifying operation. The high-temperature and high-pressure refrigerant exiting the compressor 6 is supplied to the indoor unit through the outdoor heat exchanger 9. In the cooling operation, the refrigerant is supplied into the room in a low-temperature and low-pressure state by the outdoor expansion device 10 through the four-way valve 8, but in the reheat dehumidification operation, the outdoor expansion device 10 is bypassed. Alternatively, in the case of the expansion valve 11, the expansion valve 11 is used in a fully open state, and the refrigerant is supplied indoors in a medium temperature and high pressure state.
[0003]
Then, after passing through the heating unit 1 a of the indoor unit heat exchanger 1, the indoor expansion device 2 enters a low-temperature and low-pressure state and is supplied to the cooling unit 1 b of the indoor heat exchanger 1.
[0004]
In the case of a conventional air conditioner having a reheat dehumidifying function, since the expansion device 2 is provided on the indoor side, it is difficult to secure a space and it is difficult to mount a silent device.
[0005]
[Problems to be solved by the invention]
However, in the configuration of the conventional air conditioner, during the reheat dehumidifying operation in the refrigeration cycle, a difference occurs in the refrigerant state entering the expansion device of the indoor unit according to the inside / outside air temperature, the air volume setting, and the operation frequency, and the refrigerant is a gas In the liquid state, the liquid flows alternately to form large bubbles and is sucked into the throttle device, so that a refrigerant sound is generated and a comfortable operation state cannot be realized.
[0006]
An object of the present invention is to solve such a conventional problem, and to reduce the generation of abnormal noise due to the refrigerant and to realize a comfortable driving state.
[0007]
[Means for Solving the Problems]
To achieve the above object, an air conditioner according to claim 1 is provided with a muffler in the indoor unit, projecting the front and rear refrigerant pipe of the muffler within said muffler body and the inlet side pipe outlet pipe It is located below .
[0008]
The air conditioner according to claim 2 is the air conditioner according to claim 1, wherein the muffler has a reheating function.
[0009]
An air conditioner according to a third aspect is the air conditioner according to the first or second aspect, wherein an inner diameter of the muffler is larger than an inner diameter of a refrigerant pipe before and after the muffler.
[0010]
An air conditioner according to a fourth aspect of the present invention is the air conditioner according to any one of the first to third aspects, wherein the muffler is placed horizontally.
[0011]
The air conditioner according to claim 5 is the air conditioner according to any one of claims 1 to 4, further comprising a throttle device that separates the heat exchanger into a heating unit and a cooling unit, and upstream of the throttle device. A muffler is provided on the side.
[0012]
An air conditioner according to a sixth aspect of the present invention is the air conditioner according to any one of the first to fifth aspects, wherein the front end portions of the inlet side pipe and the outlet side pipe are configured to overlap each other. To do.
[0013]
The air conditioner according to claim 7 is the air conditioner according to any one of claims 1 to 6 , wherein the tip of the inlet side pipe or the outlet side pipe protruding into the main body of the muffler is from bottom to top. It is characterized by cutting diagonally .
[0014]
An air conditioner according to an eighth aspect is the air conditioner according to the seventh aspect , wherein the end of the muffler that protrudes inside the main body is matched to the shape of the side pipe that is obliquely cut from the bottom to the top. The end portion is deformed .
[0015]
An air conditioner according to a ninth aspect is characterized in that, in the air conditioner according to any one of the first to eighth aspects, the thickness of the muffler body is larger than the thickness of the refrigerant pipe .
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
[0017]
(Embodiment 1)
FIG. 1 is a system diagram showing an example of a refrigeration cycle according to Embodiment 1 of the present invention. Basically, it has the same configuration as the conventional air conditioner shown in FIG. Detailed description will be omitted.
[0018]
In FIG. 1, the heat exchanger 1 of the refrigeration cycle is separated into a heating unit 1 a and a cooling unit 1 b by an indoor expansion device 2. A muffler 3 is connected to the upstream side of the indoor expansion device 2. The muffler 3 has a configuration as shown in FIG.
[0019]
That is, an inlet-side pipe 4 and an outlet-side pipe 5 are connected to a cylindrical muffler body 3a extending in the left-right direction, respectively, so that the inner diameter of the muffler body 3a is larger than the inner diameters of the inlet-side pipe 4 and the outlet-side pipe 5. It is configured. 7 is an inflow refrigerant | coolant.
[0020]
In the muffler thus configured, the inflowing refrigerant 7 from the inlet side pipe 4 stabilizes the state in the muffler body 3a and prevents the inflowing refrigerant 7 from entering the outlet pipe 5 in the form of large bubbles. it can. Moreover, by making the muffler 3 into a cylindrical shape extending in the left-right direction, bending of the pipes to be connected can be reduced, and space-saving storage is possible.
[0021]
(Embodiment 2)
In the following description, the same elements as those in the first embodiment described above are denoted by the same reference numerals, and the description thereof is omitted. The refrigeration cycle is the same as that of the first embodiment, and the system diagram of FIG. 1 is shared.
[0022]
FIG. 3 is a cross-sectional view showing an example of the muffler of the air conditioner in the embodiment of the present invention. As shown in FIG. 3, in the muffler of the first embodiment, an inlet side pipe 4 is connected to one side of both ends of a cylindrical muffler body 3a extending in the left-right direction, and an outlet side pipe 5 is connected to the opposite side.
[0023]
In the muffler thus configured, the inflowing refrigerant 7 from the inlet side pipe 4 stabilizes the state in the muffler body 3a and prevents the inflowing refrigerant 7 from entering the outlet pipe 5 in the form of large bubbles. it can. Further, the bending of the pipe connected to the muffler 3 can be reduced, and the space can be stored.
[0024]
(Embodiment 3)
FIG. 4 is a cross-sectional view showing an example of the muffler of the air conditioner according to Embodiment 3 of the present invention. As shown in FIG. 4, in the muffler of the second embodiment, the inlet side pipe 4 protrudes into the muffler body 3a, and is connected so as to be positioned below the outlet side pipe 5 protruding into the muffler body 3a. It is what has been.
[0025]
In the muffler configured as described above, the inflowing refrigerant 7 from the inlet side pipe 4 does not flow directly to the outlet side pipe 5, and the state is stabilized in the muffler main body 3a so that the inflowing refrigerant 7 has large bubbles. Thus, it is possible to prevent the outlet pipe 5 from entering.
[0026]
(Embodiment 4)
FIG. 5 is a sectional view showing an example of the muffler of the air conditioner according to the embodiment of the present invention. As shown in FIG. 5, in the muffler of the second embodiment, the inlet side pipe 4 protrudes into the muffler main body 3a, and is connected so as to be positioned below the outlet side pipe 5 protruding into the muffler main body 3a. The leading end 4a of the inlet side pipe and the leading end 5a of the outlet side pipe are positioned so as to overlap each other.
[0027]
In the muffler configured as described above, the inflowing refrigerant 7 from the inlet side pipe 4 does not flow directly to the outlet side pipe 5, and the state is stabilized in the muffler main body 3a so that the inflowing refrigerant 7 has large bubbles. Thus, it is possible to prevent the outlet pipe 5 from entering.
[0028]
(Embodiment 5)
FIG. 6 is a sectional view showing an example of the muffler of the air conditioner according to Embodiment 5 of the present invention. As shown in FIG. 6, in the muffler of the fourth embodiment, the front end 4a of the inlet side pipe is cut from the bottom to the top. In the muffler configured as described above, when the inflowing refrigerant 7 from the inlet side pipe 4 enters the muffler main body 3a, the liquid runs out, and the generation of bubbles when the inflowing refrigerant 7 is dropped can be prevented.
[0029]
(Embodiment 6)
FIG. 7 is a cross-sectional view showing an example of the muffler of the air conditioner according to Embodiment 6 of the present invention. As shown in FIG. 7, in the muffler of the fourth embodiment, the front end 5a of the outlet side pipe is cut from the bottom to the top.
[0030]
In the muffler configured in this manner, the inflowing refrigerant 7 from the inlet side pipe 4 can be prevented from entering the outlet pipe 5 in a state of large bubbles until the state is stabilized in the muffler body 3a.
[0031]
(Embodiment 7)
FIG. 8 is a sectional view showing an example of the muffler of the air conditioner according to Embodiment 7 of the present invention. As shown in FIG. 8, in the muffler of the sixth embodiment, the end portion 3b of the cylindrical muffler body 3a extending in the left-right direction is deformed and inclined in accordance with the shape of the outlet side pipe 5 having the tip 5a cut from the bottom to the top. Is provided.
[0032]
In the muffler configured as described above, the gap between the inner surface 3c of the muffler body 3a and the outlet pipe tip 5a is limited until the inflowing refrigerant 7 from the inlet side pipe 4 stabilizes the state in the muffler body 3a. It is possible to prevent entry into the outlet pipe 5 in the state of large bubbles.
[0033]
(Embodiment 8)
FIG. 9 is a cross-sectional view showing an example of the muffler of the air conditioner according to Embodiment 8 of the present invention. As shown in FIG. 9, in the muffler of the second embodiment, the thickness 3d of the muffler body 3a is higher than the thicknesses 4b and 5b of the inlet pipe 4 and outlet pipe 5.
[0034]
In the muffler configured as described above, the dripping sound and the collision sound of the inflowing refrigerant 7 from the inlet pipe 4 inside the muffler main body 3a are not easily leaked to the outside, and the abnormal noise due to the suction into the outlet pipe 5 leaks. Can be prevented.
[0035]
【The invention's effect】
As is clear from the above embodiment, the present invention according to claims 1 to 5 is provided upstream of the expansion device.
The inner diameter is larger than the inner diameter of the front and rear refrigerant pipes, and a muffler is provided horizontally. According to this configuration, inflow refrigerant can be prevented from entering the throttle device from the outlet pipe in the state of large bubbles, and comfortable operation is achieved. There is an effect that the state can be realized. In addition, the inlet side pipe protrudes into the muffler body and is connected so as to be positioned below the outlet side pipe similarly protruding into the muffler body. According to this configuration, the refrigerant flowing in from the inlet side pipe However, it is possible to stabilize the state in the muffler body without directly flowing out to the outlet side pipe, and to prevent the inflowing refrigerant from entering the throttle device from the outlet pipe in a state of large bubbles, and to realize a comfortable operation state. There is an effect. In addition, when the muffler is horizontally placed in a cylindrical shape, it is possible to reduce the bending of the pipes to be connected, and it is possible to enable storage in a space-saving manner.
[0036]
Further, the present invention according to claim 6 is connected so that the inlet side pipe projects into the muffler body and is located below the outlet side pipe similarly projected into the muffler body, and The leading end of the inlet side pipe and the leading end of the outlet side pipe are positioned so as to overlap each other. According to this configuration, the inflow refrigerant from the inlet side pipe does not flow directly to the outlet side pipe, and the muffler It is possible to stabilize the state in the main body, prevent the inflowing refrigerant from entering the expansion device from the outlet pipe in a state of large bubbles, and achieve an advantageous operation state.
[0037]
According to the seventh aspect of the present invention, in the case where the front end of the inlet side pipe is cut from the bottom to the top, the inflow refrigerant from the inlet side pipe improves when the refrigerant enters the muffler body, and the inflow is improved. Bubbles can be prevented from being generated when the refrigerant is dripped, and a comfortable driving condition can be realized.
[0038]
In addition, when the tip of the outlet side pipe is cut from the bottom to the top, the refrigerant flowing from the inlet side pipe enters the throttle device from the outlet pipe in a state of large bubbles until the state stabilizes in the muffler body. It is possible to prevent this and to achieve a comfortable driving state.
[0039]
Further, according to the present invention of claim 8 , the end of the cylindrical muffler body extending in the left-right direction is deformed to provide an inclination in accordance with the shape of the outlet side pipe whose tip is cut from bottom to top. According to this configuration, the gap between the inner surface of the muffler body and the tip of the outlet pipe is limited, and the refrigerant flowing from the inlet side pipe is squeezed from the outlet pipe in a state of large bubbles until the state is stabilized in the muffler body. There is an effect that it is possible to prevent the device from entering and to realize a comfortable driving state.
[0040]
The present invention according to claim 9 is such that the thickness of the muffler body is larger than the thickness of the inlet pipe and the outlet pipe, and according to this configuration, the inflow refrigerant from the inlet pipe inside the muffler body The dripping sound and the collision sound are less likely to leak to the outside, and it is possible to prevent abnormal noise due to suction into the outlet pipe from leaking, thereby realizing an effect of realizing a comfortable driving state.
[Brief description of the drawings]
FIG. 1 is a refrigeration cycle diagram showing Embodiment 1 of the present invention. FIG. 2 is a sectional view of the muffler. FIG. 3 is a sectional view of a muffler showing Embodiment 2 of the present invention. FIG. 5 is a cross-sectional view of the muffler showing the fourth embodiment of the present invention. FIG. 6 is a cross-sectional view of the muffler showing the fifth embodiment of the present invention. FIG. 8 is a cross-sectional view of the muffler showing the seventh embodiment of the present invention. FIG. 9 is a cross-sectional view of the muffler showing the eighth embodiment of the present invention. Refrigeration cycle diagram indicating
DESCRIPTION OF SYMBOLS 1 Indoor heat exchanger 1a Heating part of an indoor heat exchanger 1b Cooling part of an indoor heat exchanger 2 Indoor expansion device 3 Muffler 3a Muffler main body 3b Muffler main body end 3c Muffler main body inner surface 4 Inlet pipe 4a Inlet pipe tip 4b Inlet pipe 5 Outlet pipe 5a Outlet pipe tip 5b Outlet pipe thickness 6 Compressor 7 Inflow refrigerant 8 Four-way valve 9 Outdoor heat exchanger 10 Outdoor throttle device 11 Expansion valve

Claims (9)

室内機にマフラーを備え、前記マフラーの前後の冷媒配管を前記マフラー本体内部に突出し、かつ、入口側配管が出口側配管の下方に位置することを特徴とする空気調和機。 It includes a muffler to the indoor unit, projecting the front and rear refrigerant pipe of the muffler inside the muffler body, and an air conditioner inlet side pipe, characterized in that positioned below the outlet pipe. 前記マフラーが再熱機能を有することを特徴とする請求項1記載の空気調和機。  The air conditioner according to claim 1, wherein the muffler has a reheating function. 前記マフラーの内径が前記マフラー前後の冷媒配管の内径より大きくしたことを特徴とする請求項1または2記載の空気調和機。  The air conditioner according to claim 1 or 2, wherein an inner diameter of the muffler is larger than an inner diameter of a refrigerant pipe before and after the muffler. 前記マフラーを横置きとしたことを特徴とする請求項1〜3いずれか1項記載の空気調和機。  The air conditioner according to any one of claims 1 to 3, wherein the muffler is placed horizontally. 熱交換器を加熱部と冷却部とに分離する絞り装置を有し、前記絞り装置の上流側にマフラーを設けたことを特徴とする請求項1〜4いずれか1項記載の空気調和機。  The air conditioner according to any one of claims 1 to 4, further comprising a throttle device that separates the heat exchanger into a heating unit and a cooling unit, and a muffler provided on an upstream side of the throttle device. 前記入り口側配管と前記出口側配管のそれぞれの先端部分を重ね合うように構成することを特徴とした請求項1〜5いずれか1項記載の空気調和機。The air conditioner according to any one of claims 1 to 5, wherein the front end portions of the inlet side piping and the outlet side piping are configured to overlap each other. 前記マフラーの本体内部に突出した前記入り口側配管または前記出口側配管の先端を下から上へ斜めにカットすることを特徴とする請求項1〜6いずれか1項記載の空気調和機。The air conditioner according to any one of claims 1 to 6, wherein a tip of the inlet side pipe or the outlet side pipe protruding into the muffler main body is obliquely cut from bottom to top. 前記マフラーの本体内部に突出した先端を下から上へ斜めにカットした前記側配管の形状に合わせ、前記マフラー本体の端部を変形することを特徴とする請求項7記載の空気調和機。The air conditioner according to claim 7 , wherein the end of the muffler main body is deformed in accordance with the shape of the side pipe that is obliquely cut from the bottom to the top. 前記マフラー本体の肉厚を前記冷媒配管の肉厚よりも大きくすることを特徴とする請求項1〜8いずれか1項記載の空気調和機。The air conditioner according to any one of claims 1 to 8 , wherein a thickness of the muffler body is larger than a thickness of the refrigerant pipe.
JP2000300102A 2000-09-29 2000-09-29 Air conditioner Expired - Fee Related JP3807217B2 (en)

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Publication number Priority date Publication date Assignee Title
KR100474909B1 (en) * 2002-06-12 2005-03-08 엘지전자 주식회사 heating and cooling system
KR100733314B1 (en) * 2005-09-20 2007-06-28 엘지전자 주식회사 Muffler of air conditioner
KR100888756B1 (en) * 2007-09-10 2009-03-17 삼일공업 주식회사 Method for manufacturing silencer for air conditioner
CN114502896B (en) * 2019-10-04 2024-03-29 三星电子株式会社 Air conditioner

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