JP2011052842A - Heat pump outdoor unit - Google Patents

Heat pump outdoor unit Download PDF

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JP2011052842A
JP2011052842A JP2009199378A JP2009199378A JP2011052842A JP 2011052842 A JP2011052842 A JP 2011052842A JP 2009199378 A JP2009199378 A JP 2009199378A JP 2009199378 A JP2009199378 A JP 2009199378A JP 2011052842 A JP2011052842 A JP 2011052842A
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outdoor unit
compressor
surface portion
heat pump
intermediate base
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JP5287614B2 (en
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Shuji Mogi
周二 茂木
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To solve problems in a conventional intermediate base disposed outside of a heat pump chamber wherein, as it has nearly the flat shape, vibration of the compressor can be reduced by mass and spring action of two vibration-proof mounts when the compressor is installed on the intermediate base, but effect to reduce noise from the outside of a heat pump outdoor unit by insulating the noise from the compressor is small, so it is necessity to dispose a noise insulation material in the heat pump outdoor unit, which causes increase of mass of the heat pump outdoor unit and increase of material costs. <P>SOLUTION: The intermediate base is composed of a first vibration-proof mount installation face section on which the compressor is disposed through a vibration-proof mount, a front face section connected to the first vibration-proof mount installation face section disposed between the compressor and a housing front face section of the heat pump outdoor unit, and a rear face section connected to a compressor installation face disposed between the compressor and a housing rear face section of the heat pump outdoor unit. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、ヒートポンプ室外機に関するものである。   The present invention relates to a heat pump outdoor unit.

圧縮機の脚板に第1防振マウントを取り付け、第1防振マウントを中間ベースに設置させ、中間ベースに第2防振マウントを取り付け、第2防振マウントをヒートポンプ室外機のベースに設置させる構造にすると、中間ベースの質量と2つの防振マウントのバネ作用により圧縮機の振動が大きく低減し、防振マウントや圧縮機の配管からヒートポンプ室外機のベース、筐体へ伝達する振動が低減し、ヒートポンプ室外機の振動、騒音が低減する効果があるが、従来のヒートポンプ室外機では中間ベースを圧縮機下方でほぼ平坦な形状としている(例えば、特許文献1参照。)、あるいは、中間ベースで圧縮機を密閉する密閉容器構造としている(例えば、特許文献2参照。)。   Attach the first anti-vibration mount to the compressor footplate, install the first anti-vibration mount on the intermediate base, attach the second anti-vibration mount to the intermediate base, and install the second anti-vibration mount on the base of the heat pump outdoor unit With the structure, the vibration of the compressor is greatly reduced by the mass of the intermediate base and the spring action of the two anti-vibration mounts, and the vibration transmitted from the anti-vibration mounts and the piping of the compressor to the base and housing of the heat pump outdoor unit is reduced. However, although there is an effect of reducing vibration and noise of the heat pump outdoor unit, in the conventional heat pump outdoor unit, the intermediate base has a substantially flat shape below the compressor (see, for example, Patent Document 1), or the intermediate base. Thus, a closed container structure for sealing the compressor is used (see, for example, Patent Document 2).

実開平05−010843号公報(第4−5頁、第2図)Japanese Utility Model Publication No. 05-010843 (page 4-5, FIG. 2) 実開平05−14572号公報(第4−5頁、第2図)Japanese Utility Model Publication No. 05-14572 (page 4-5, Fig. 2)

従来のヒートポンプ室外機では中間ベースをほぼ平坦な形状としているので、中間ベースの質量と2つの防振マウントのバネ作用により圧縮機の振動は低減できても、圧縮機から放射される騒音を遮音して、ヒートポンプ室外機外部に出る騒音を低減させる効果は少なく、ヒートポンプ室外機外部に出る騒音を低減させる為、ヒートポンプ室外機内に別に遮音材を設けるため、ヒートポンプ室外機の質量、材料費が中間ベース分からさらに大きく増加する等の問題点があった。   In conventional heat pump outdoor units, the intermediate base has a substantially flat shape, so even if the vibration of the compressor can be reduced by the mass of the intermediate base and the spring action of the two vibration-proof mounts, the noise radiated from the compressor is insulated. Therefore, there is little effect to reduce the noise coming out of the heat pump outdoor unit. In order to reduce the noise coming out of the heat pump outdoor unit, a separate sound insulating material is provided in the heat pump outdoor unit, so the mass and material cost of the heat pump outdoor unit are intermediate. There was a problem such as a large increase from the base.

また、別の従来のヒートポンプ室外機では中間ベースで圧縮機を密閉する密閉容器構造としているので、ヒートポンプ室外機に圧縮機を取り付ける組み立て作業性が非常に悪く、ヒートポンプ室外機の組み立て費が大幅に増加する等の問題点があった。また、遮音などが不十分で、圧縮機の周辺に遮音材を設けたり、冷媒配管の取り付け方法を変更したりする際にも、密閉容器構造のため、組み立て作業性が非常に悪く、圧縮機周辺の冷媒配管の設計や工作に余裕が無い等の問題があった。   Another conventional heat pump outdoor unit has a sealed container structure in which the compressor is hermetically sealed with an intermediate base. Therefore, the assembly work for attaching the compressor to the heat pump outdoor unit is very bad, and the assembly cost of the heat pump outdoor unit is greatly increased. There was a problem such as an increase. In addition, sound insulation is not sufficient, and when installing sound insulation around the compressor or changing the method of installing refrigerant piping, the assembly workability is very poor due to the sealed container structure. There was a problem that there was no margin in the design and construction of the surrounding refrigerant piping.

また、ヒートポンプ室外機は、住宅の外壁近くに設置されることが多いため、ヒートポンプ室外機後面の騒音や振動が住宅の外壁に伝わり騒音を大きくしたり、住宅の外壁と共振現象を起こし外壁に伝わった騒音を増幅したり、住宅の外壁に騒音が反射して、前面の騒音を増幅したりする等の問題があった。また、ヒートポンプ室外機を利用した給湯機の場合は、深夜電力利用のため深夜に稼動することが多く、伝播して広がる深夜の騒音や振動に対する問題も大きかった。   In addition, because heat pump outdoor units are often installed near the outer wall of a house, noise and vibration on the rear surface of the heat pump outdoor unit are transmitted to the outer wall of the house, increasing the noise, and causing a resonance phenomenon with the outer wall of the house. There were problems such as amplifying the transmitted noise and amplifying the front noise by reflecting the noise on the outer wall of the house. In addition, hot water heaters using heat pump outdoor units often operate at midnight because of the use of late-night power, and there are significant problems with midnight noise and vibration.

この発明は、上記のような課題を解決するためになされたもので、圧縮機側方の中間ベースの側面部で圧縮機から放射される騒音及び圧縮機の振動を遮音または低減させるものである。   The present invention was made to solve the above-described problems, and is designed to insulate or reduce noise radiated from the compressor and compressor vibration at the side surface of the intermediate base on the side of the compressor. .

この発明に係るヒートポンプ室外機は、圧縮機の脚板に取り付けられた第1防振マウントと、第1防振マウントを介して圧縮機が設置される第1防振マウント設置面部と圧縮機とヒートポンプ室外機の筐体前面部との間に併設する第1防振マウント設置面部とつながった前側面部と圧縮機とヒートポンプ室外機の筐体後面部との間に併設する圧縮機設置面とつながった後側面部とで構成される中間ベースと、第1防振マウント設置面部の下方に取り付けられヒートポンプ室外機の底部を構成するヒートポンプ室外機ベース上に第1防振マウント設置面部を支持する第2防振マウントとを備え、中間ベースの開放された側面部または上面部から中間ベースの外へ冷媒配管を取り出すようにしたものである。   A heat pump outdoor unit according to the present invention includes a first vibration isolation mount attached to a leg plate of a compressor, a first vibration isolation mount installation surface portion on which the compressor is installed via the first vibration isolation mount, a compressor, and a heat pump. Connected to the front side connected to the first anti-vibration mount installation surface provided alongside the front surface of the housing of the outdoor unit and the compressor installation surface provided between the compressor and the rear surface of the housing of the heat pump outdoor unit And a first base for supporting the first anti-vibration mount on the heat pump outdoor unit base that is attached below the first anti-vibration mount installation surface and constitutes the bottom of the heat pump outdoor unit. And 2 anti-vibration mounts, and the refrigerant pipe is taken out of the intermediate base from the opened side surface or upper surface of the intermediate base.

この発明は、圧縮機側方の中間ベースの側面部で圧縮機から放射される騒音が遮音または低減されて、圧縮機からヒートポンプ室外機外部に出る放射音が低減するので、中間ベースの質量と2つの防振マウントのバネ作用による圧縮機の振動低減作用によるヒートポンプ室外機の騒音低減効果と相乗して、静粛面で優れたヒートポンプ室外機を得ることができる。   In the present invention, noise radiated from the compressor is sound-insulated or reduced at the side portion of the intermediate base on the side of the compressor, and radiated sound coming out of the heat pump outdoor unit from the compressor is reduced. In combination with the noise reduction effect of the heat pump outdoor unit due to the vibration reduction effect of the compressor due to the spring action of the two anti-vibration mounts, a heat pump outdoor unit excellent in quietness can be obtained.

この発明の実施の形態1におけるヒートポンプ室外機の要部拡大図である。It is a principal part enlarged view of the heat pump outdoor unit in Embodiment 1 of this invention. この発明の実施の形態1におけるヒートポンプ室外機の中間ベースを示す構造図である。It is a structural diagram which shows the intermediate | middle base of the heat pump outdoor unit in Embodiment 1 of this invention. この発明の実施の形態1におけるヒートポンプ室外機の全体を示す外観図である。It is an external view which shows the whole heat pump outdoor unit in Embodiment 1 of this invention. この発明の実施の形態1におけるヒートポンプ室外機の要部拡大図である。It is a principal part enlarged view of the heat pump outdoor unit in Embodiment 1 of this invention. この発明の実施の形態1におけるヒートポンプ室外機の要部拡大図である。It is a principal part enlarged view of the heat pump outdoor unit in Embodiment 1 of this invention. この発明の実施の形態1におけるヒートポンプ室外機の要部拡大図である。It is a principal part enlarged view of the heat pump outdoor unit in Embodiment 1 of this invention. この発明の実施の形態1におけるヒートポンプ室外機の要部拡大図である。It is a principal part enlarged view of the heat pump outdoor unit in Embodiment 1 of this invention. この発明の実施の形態1におけるヒートポンプ室外機の中間ベースを示す構造図である。It is a structural diagram which shows the intermediate | middle base of the heat pump outdoor unit in Embodiment 1 of this invention.

実施の形態1.
図1は、ヒートポンプ室外機のベースと圧縮機と第1防振マウントと中間ベースと吸音材と第2防振マウント示すヒートポンプ室外機の要部拡大図、図2は中間ベースを示す構造図、図3はヒートポンプ室外機全体を示す外観図である。なお、図1(a)は、図1(b)のA−A面から圧縮機2を見た図であり、図1(b)は、図1(a)のB−B面から圧縮機2を見た図であり、図1(c)は図1(a)のC−C面から中間ベース7を見た図である。
図1において、圧縮機2は、冷媒を圧縮機2に吸入する吸入管2dが、冷媒音を消音する吸入マフラ2fを介して、圧縮機本体2a側面下方に取り付けられ、圧縮機2の下方から冷媒を吸入し、吸入した冷媒を圧縮後、吐出する吐出管2eが圧縮機本体2a上部に取り付けられている。いずれも溶接にて接続固定されている。また、吸入マフラ2fは圧縮機本体2a側方に併設されるように配置され、振動や他の配管へ当たり防止のため圧縮機本体2aに固定されている。また、圧縮機2は本体2a底部に本体固定のための脚板2bが溶接にて取り付けられている。このような構成にて、圧縮機2はヒートポンプ室外機1に組み込まれている。
圧縮機2の脚板2bは図1(c)のように3〜4個の第1防振マウント取り付け穴2cを有し、ゴムあるいは金属コイル等で成型された第1防振マウント6が取り付けられている。第1防振マウント6は、概略円筒形で、中にボルトが挿入できる孔を設けた構造となっており、ゴムあるいは金属コイルの弾性特性により、所定のバネ定数と減衰率を有している。第1防振マウント6は圧縮機2下方の中間ベース7の第1防振マウント設置面部7bに設置されているが、第1防振マウント設置面部7bには圧縮機2の脚板2bに取り付けた第1防振マウント6に対応するボルトが立設されており、これらのボルトを第1防振マウント6の孔に所定の隙間を設けながら挿入し、圧縮機2の脚板2bを第1防振マウント6に載せて、先端を所定の隙間を設けながらナット締めし、圧縮機2は弾性支持されている。中間ベース7は3〜4個の第2防振マウント取り付け穴7aを有し、ゴムあるいは金属コイル等で成型された第2防振マウント8が取り付けられている。第1防振マウント6と同様、第2防振マウント8も、概略円筒形で、中にボルトが挿入できる孔を設けた構造となっており、ゴムあるいは金属コイルの弾性特性により、所定のバネ定数と減衰率を有している。第2防振マウント8は中間ベース7下方のヒートポンプ室外機1のベース1aに設置されているが、ヒートポンプ室外機1のベース1aには中間ベース7に取り付けた第2防振マウント8に対応するボルトが立設されており、これらのボルトを第2防振マウント8の孔に所定の隙間を設けながら挿入し、中間ベース7の第1防振マウント設置面部7bを第2防振マウント8に載せて、先端を所定の隙間を設けながらナット締めし、中間ベース7は弾性支持されている。なお、第1防振マウント6と第2防振マウント8は、粘弾性の同じものを使用しても、違うものを使用しても、2つの組み合わせにおいて、ずり変形による振動エネルギーの吸収と熱エネルギーへの変換効率が良く、振動が低減できれば、構わない。また、第1防振マウント6と第2防振マウント8にて、形状、径の大きさ、高さを、変えても、同じものでも構わない。
中間ベース7は図2に示すように板金材が圧縮機2下方の第1防振マウント設置面部7bから圧縮機2側方のヒートポンプ室外機1の前面側に面する前側面部7cと後面側に面する後側面部7fにつながる一体型構造をした、L字状(対2面でコ字状)に折り曲げられた形状となっている。また、取り付けるときには、図1のように、中間ベース7の前側面部7cはヒートポンプ室外機1の前面側に、中間ベース7の後側面部7fはヒートポンプ室外機1の後面側に向くように設置され、圧縮機から放射される騒音の漏れを抑え、遮音効果を高めるため圧縮機を覆うように前側面部7cと後側面部7fの上端が圧縮機2高さより上方まである形状となっている。中間ベース7の前側面部7cの圧縮機2に面する内面7dと圧縮機2に面しない外面7eと後側面部7fの圧縮機2に面する内面7gと圧縮機2に面しない外面7hの両側面部の両面に吸音材9が貼り付けられている。また、中間ベース7は、中間ベース7の開放された側面部または上面部から、吸入マフラ2f及び吸入管2dを介して圧縮機2と接続される冷媒配管が取り出されている。同様に、中間ベース7の開放された側面部または上面部から、吐出管2eを介して圧縮機2と接続される冷媒配管も取り出されている。
圧縮機2内部には冷媒を圧縮する圧縮部と圧縮部を駆動するモータが収納され、ヒートポンプ室外機1運転時はヒートポンプ室外機1内のインバータ電源あるいは家庭用電源から圧縮機2のモータに電源供給され、モータ及びモータと接続された圧縮機2内の圧縮部が駆動し、冷媒の圧縮動作が行われる。
Embodiment 1 FIG.
FIG. 1 is an enlarged view of a main part of a heat pump outdoor unit showing a base, a compressor, a first vibration isolation mount, an intermediate base, a sound absorbing material, and a second vibration isolation mount of the heat pump outdoor unit, and FIG. 2 is a structural diagram showing the intermediate base. FIG. 3 is an external view showing the entire heat pump outdoor unit. 1A is a view of the compressor 2 viewed from the AA plane in FIG. 1B, and FIG. 1B is a compressor viewed from the BB plane in FIG. 1A. 2 is a view of the intermediate base 7 as viewed from the CC plane of FIG. 1A.
In FIG. 1, a compressor 2 has a suction pipe 2 d that sucks refrigerant into the compressor 2, and is attached to the lower side of the compressor body 2 a through a suction muffler 2 f that silences the refrigerant sound. A discharge pipe 2e for sucking the refrigerant and compressing the sucked refrigerant is attached to the upper part of the compressor body 2a. Both are connected and fixed by welding. Further, the suction muffler 2f is disposed so as to be provided on the side of the compressor main body 2a, and is fixed to the compressor main body 2a in order to prevent vibration and other pipes from hitting. The compressor 2 has a leg plate 2b for fixing the main body 2a welded to the bottom of the main body 2a. With such a configuration, the compressor 2 is incorporated in the heat pump outdoor unit 1.
The leg plate 2b of the compressor 2 has three to four first vibration isolation mount mounting holes 2c as shown in FIG. 1 (c), and the first vibration isolation mount 6 molded with rubber or a metal coil is attached to the leg plate 2b. ing. The first anti-vibration mount 6 has a substantially cylindrical shape and is provided with a hole into which a bolt can be inserted. The first anti-vibration mount 6 has a predetermined spring constant and a damping rate due to the elastic characteristics of rubber or a metal coil. . The first anti-vibration mount 6 is installed on the first anti-vibration mount installation surface portion 7b of the intermediate base 7 below the compressor 2, and the first anti-vibration mount installation surface portion 7b is attached to the leg plate 2b of the compressor 2. Bolts corresponding to the first anti-vibration mount 6 are erected, and these bolts are inserted into the holes of the first anti-vibration mount 6 while providing a predetermined gap, and the leg plate 2b of the compressor 2 is inserted into the first anti-vibration mount. The compressor 2 is elastically supported by placing it on the mount 6 and tightening the tip with a predetermined gap. The intermediate base 7 has 3 to 4 second anti-vibration mount attachment holes 7a, and the second anti-vibration mount 8 formed of rubber or metal coil is attached thereto. Similar to the first anti-vibration mount 6, the second anti-vibration mount 8 is also substantially cylindrical and has a structure in which a bolt can be inserted. A predetermined spring is formed by the elastic characteristics of rubber or a metal coil. It has a constant and a decay rate. The second anti-vibration mount 8 is installed on the base 1a of the heat pump outdoor unit 1 below the intermediate base 7. The base 1a of the heat pump outdoor unit 1 corresponds to the second anti-vibration mount 8 attached to the intermediate base 7. Bolts are erected, and these bolts are inserted into the holes of the second anti-vibration mount 8 with a predetermined gap, and the first anti-vibration mount installation surface portion 7 b of the intermediate base 7 is attached to the second anti-vibration mount 8. The intermediate base 7 is elastically supported by mounting and tightening the nut with a predetermined gap. The first anti-vibration mount 6 and the second anti-vibration mount 8 use the same viscoelasticity or different ones, and in two combinations, absorption of vibration energy due to shear deformation and heat It does not matter if the conversion efficiency to energy is good and vibration can be reduced. Further, the first anti-vibration mount 6 and the second anti-vibration mount 8 may be the same or different in shape, size of diameter, and height.
As shown in FIG. 2, the intermediate base 7 includes a front side portion 7 c and a rear side where the sheet metal material faces the front side of the heat pump outdoor unit 1 on the side of the compressor 2 from the first vibration isolation mount installation surface portion 7 b below the compressor 2. It has an integrated structure connected to the rear side surface portion 7f that faces the surface and is bent in an L shape (a U shape on two surfaces). When installing, as shown in FIG. 1, the front side surface portion 7c of the intermediate base 7 is set to face the front surface side of the heat pump outdoor unit 1, and the rear side surface portion 7f of the intermediate base 7 faces the rear surface side of the heat pump outdoor unit 1. In order to suppress the leakage of noise radiated from the compressor and enhance the sound insulation effect, the upper end of the front side surface portion 7c and the rear side surface portion 7f are located above the height of the compressor 2 so as to cover the compressor. . An inner surface 7 d of the front side surface portion 7 c of the intermediate base 7 facing the compressor 2, an outer surface 7 e not facing the compressor 2, an inner surface 7 g facing the compressor 2 of the rear side surface portion 7 f, and an outer surface 7 h not facing the compressor 2. The sound absorbing material 9 is affixed on both sides of both side portions. Further, the intermediate base 7 has a refrigerant pipe connected to the compressor 2 via the suction muffler 2f and the suction pipe 2d taken out from the opened side surface or upper surface of the intermediate base 7. Similarly, the refrigerant pipe connected to the compressor 2 through the discharge pipe 2e is also taken out from the opened side surface or upper surface of the intermediate base 7.
The compressor 2 contains a compressor for compressing refrigerant and a motor for driving the compressor. During operation of the heat pump outdoor unit 1, power is supplied to the motor of the compressor 2 from the inverter power source or household power source in the heat pump outdoor unit 1. The supplied compressor and the compressor in the compressor 2 connected to the motor are driven, and the refrigerant is compressed.

次にヒートポンプ室外機の全体構成を説明する。ヒートポンプ室外機1を含めた装置システムの用途で、例えば、空気の温度を上げるか下げるか変化調節する場合には、ヒートポンプ室外機1をヒートポンプ空調室外機、水の温度を上げて調節する場合にはヒートポンプ室外機1をヒートポンプ給湯室外機と呼ぶ。
ヒートポンプ空調室外機を例に全体構成を説明する。図3は、ヒートポンプ給湯室外機のものであるが、ヒートポンプ空調室外機も、概ね同じ構造と部品配置であり、図3に示すように前面から見て、左側に送風機14と送風機14の後面側に空気冷媒熱交換器15を備えた送風機室1cと、右側に圧縮機2と左側に配置された空気冷媒熱交換器15および圧縮機2と接続して冷媒回路を構成する機能部品とその上方に電気部品を収納した電気品収納箱17を備えた機械室1bが、仕切板1dに分離されて配置されている。これらを、送風機室1cの空気冷媒熱交換器15を配置部分を除いて、室外機ベース1a、筐体の前面部1e、筐体の後面部1f、筐体の上面部1g、筐体の右側面部1h、筐体の左側面部1kで覆い、ヒートポンプ空調室外機の外郭を構成している。ヒートポンプ空調室外機の右側には、図示しない室内機と接続される冷媒配管用のストップバルブと電気配線を取り出す端子台があり、それらを保護するため、サービスパネル1pを取り付けている。なお、送風機14は、送風機14の後面に設置された空気冷媒熱交換器15側から空気を吸い込み、空気冷媒熱交換器15に熱交換させ、空気冷媒熱交換器15と反対側へ空気は排出される。この排気を阻害し、ヒートポンプ空調室外機の周辺の空気が交換されないと空気冷媒熱交換器15の熱交換能力は低下し、必要な冷房、暖房が行えない。そのため、ヒートポンプ空調室外機は図3に示す向きが前面として設置され、前面には排気の阻害となる障害物は置かず、できるだけ開放された空間を作るように設置されている。したがって、ヒートポンプ空調室外機を住宅に設置する場合は、後面側に住宅がある場合が多い。
図1において、図示省略しているものもあるが、ヒートポンプ空調室外機には、冷媒を圧縮する圧縮機2、冷媒を減圧する膨張弁、冷媒の流れを切替える四方弁のような多方弁、これらを接続する冷媒配管が仕切板1dによって分離された機械室1bに組み込まれている。圧縮機2は吐出管2eを介して中間ベース7の外に取り出され、四方弁を介して接続される冷媒配管にて図1(a)の左側の送風機室1c内の空気冷媒熱交換器15の冷媒入口と接続されている。空気冷媒熱交換器15の冷媒出口と膨張弁を介して、ヒートポンプ空調室外機右側下方に配置されたストップバルブに冷媒配管にて接続されている。ヒートポンプ空調室外機右側下方にもう一つ配置されたストップバルブは、冷媒配管にて中間ベース7内の圧縮機2の右側にある吸入管2dに四方弁を介して接続されている。したがって、中間ベース7内の圧縮機2から出た冷媒配管は四方弁を介して図1の左側の送風機室1cに向かい、空気冷媒熱交換器15を介して再び、機械室1bに戻ってきて、膨張弁を介してヒートポンプ空調室外機右側下方にあるストップバルブに向かう。ストップバルブを介して、図示しない空調室内機を経由し、ヒートポンプ空調室外機右側下方にあるもう一方のストップバルブに戻ってくる。戻ってきた冷媒配管は、四方弁を介して図1の圧縮機2の右側にある吸入管2d、吸入マフラ2fを経由し、中間ベース7内の圧縮機に戻る、冷媒回路を構成している。なお、これは冷房運転の冷媒の流路に沿って説明したもので、暖房運転の場合は、四方弁にて冷媒の流路が切り替わるが、冷媒配管の接続は変わらない。また、ストップバルブは図3のサービスパネル1p内にあり、図示しない。
なお、機械室1b上方には、圧縮機2、膨張弁、多方弁、送風機14等を駆動制御するインバータ電源などの電気部品を収納した電気部品収納箱17が組み込まれている。
図1(a)左側に仕切板1dにより分離された送風機室1c内には、送風機14、送風機14に隣接して空気冷媒熱交換器15が組み込まれており、風路確保のため大きな空間となっている。空気冷媒熱交換器15は小さなアルミ薄板のフィンが多数密着した長い冷媒配管が略平板状に曲げ成形されており、冷媒配管内の冷媒とフィン周辺の空気とで熱交換が行われるようになっており、送風機14により各フィン間を流れて通過する空気の風量が増やされて熱交換の量が促進され、空気の風量が調節されて熱交換の量が調節されている。よって、ヒートポンプ空調室外機の外郭は、空気冷媒熱交換器15設置部以外は板金材でできた複数の筐体1e、1f、1g、1h、1kおよび室外機ベース1aで覆われている。ヒートポンプ空調室外機内の冷媒配管は、前記14とは別の送風機と前記15とは別の空気冷媒熱交換器が組み込まれた空調室内機(図示せず)と2本の冷媒配管でストップバルブを介して外部接続され、ヒートポンプ空調室外機内の圧縮機2、空気冷媒熱交換器15、膨張弁、冷媒配管、空調室内機内の空気冷媒熱交換器、冷媒配管等が接続された密閉空間内に所定の量の冷媒(通常R410A)が封入されている。なお、空調室内機と接続している2本の冷媒配管のヒートポンプ空調室外機との接続口であるストップバルブは、筐体の左側面部1k以外にサービスパネル1pにて保護されている。
空調室内機側の空気を冷却する冷房運転では、圧縮機2により吸入マフラ2fを介して吸入管2dから吸入された低圧冷媒は圧縮機2で高温高圧冷媒に圧縮され、圧縮機2から吐出管2e内に吐出され、冷媒は空気冷媒熱交換器15で空気と熱交換し空気を加熱し、膨張弁に流入する。膨張弁で減圧され温度降下した低温低圧冷媒はストップバルブを介して接続された冷媒配管を通り空調室内機に往き、空調室内機の空気冷媒熱交換器で空気と熱交換し空気を冷却し、往きとは別の冷媒配管と別のストップバルブを介してヒートポンプ空調室外機に還り、吸入管2dから圧縮機2に流入する。このように冷媒が循環してヒートポンプサイクルが行われ、空調室内機側の空気を冷却させている。
ヒートポンプ空調室外機では冷媒配管に接続された例えば四方弁のような多方弁を切り換えて、冷房運転と暖房運転を切り換えている。
Next, the overall configuration of the heat pump outdoor unit will be described. In the use of the apparatus system including the heat pump outdoor unit 1, for example, in the case of adjusting the change of whether the temperature of the air is increased or decreased, when adjusting the heat pump outdoor unit 1 by increasing the temperature of the heat pump air-conditioning outdoor unit and water Refers to the heat pump outdoor unit 1 as a heat pump hot water supply outdoor unit.
The overall configuration will be described using a heat pump air-conditioning outdoor unit as an example. FIG. 3 shows the heat pump hot water supply outdoor unit, but the heat pump air conditioner outdoor unit has substantially the same structure and component arrangement, and as shown in FIG. 3, the blower 14 and the rear side of the blower 14 are on the left side when viewed from the front. A blower chamber 1c provided with an air refrigerant heat exchanger 15; a compressor 2 on the right side; an air refrigerant heat exchanger 15 disposed on the left side; A machine room 1b having an electrical component storage box 17 storing electrical components is separated from the partition plate 1d. Except for the portion where the air refrigerant heat exchanger 15 of the blower chamber 1c is disposed, the outdoor unit base 1a, the front surface portion 1e of the housing, the rear surface portion 1f of the housing, the upper surface portion 1g of the housing, the right side of the housing It is covered with a surface portion 1h and a left side surface portion 1k of the housing, and constitutes an outer shell of the heat pump air-conditioning outdoor unit. On the right side of the heat pump air-conditioning outdoor unit, there are a stop valve for refrigerant piping connected to an indoor unit (not shown) and a terminal block for taking out electrical wiring, and a service panel 1p is attached to protect them. The blower 14 sucks air from the air refrigerant heat exchanger 15 side installed on the rear surface of the blower 14, causes the air refrigerant heat exchanger 15 to exchange heat, and discharges air to the opposite side of the air refrigerant heat exchanger 15. Is done. If this exhaust is inhibited and the air around the heat pump air-conditioning outdoor unit is not exchanged, the heat exchange capacity of the air refrigerant heat exchanger 15 is lowered, and the necessary cooling and heating cannot be performed. Therefore, the heat pump air conditioner outdoor unit is installed with the direction shown in FIG. 3 as the front surface, and is installed on the front surface so as to create an open space as much as possible without placing obstacles that hinder exhaust. Therefore, when installing a heat pump air-conditioning outdoor unit in a house, there are many houses on the rear side.
In FIG. 1, although there are some illustrations omitted, the heat pump air conditioner outdoor unit includes a compressor 2 that compresses the refrigerant, an expansion valve that decompresses the refrigerant, a multi-way valve such as a four-way valve that switches the flow of the refrigerant, Is installed in the machine room 1b separated by the partition plate 1d. The compressor 2 is taken out of the intermediate base 7 via the discharge pipe 2e, and is connected to the air refrigerant heat exchanger 15 in the blower chamber 1c on the left side of FIG. Connected to the refrigerant inlet. Via a refrigerant outlet of the air refrigerant heat exchanger 15 and an expansion valve, a refrigerant pipe is connected to a stop valve disposed on the lower right side of the heat pump air-conditioning outdoor unit. Another stop valve arranged on the lower right side of the heat pump air-conditioning outdoor unit is connected to the suction pipe 2d on the right side of the compressor 2 in the intermediate base 7 via a four-way valve with a refrigerant pipe. Accordingly, the refrigerant pipe exiting from the compressor 2 in the intermediate base 7 is directed to the blower chamber 1c on the left side of FIG. 1 through the four-way valve, and returns to the machine chamber 1b again through the air refrigerant heat exchanger 15. Go to the stop valve at the lower right side of the heat pump air-conditioning outdoor unit through the expansion valve. It returns to the other stop valve at the lower right side of the heat pump air-conditioning outdoor unit via a stop valve via an air-conditioning indoor unit (not shown). The returned refrigerant pipe constitutes a refrigerant circuit that returns to the compressor in the intermediate base 7 through the suction pipe 2d and the suction muffler 2f on the right side of the compressor 2 in FIG. . In addition, this was demonstrated along the refrigerant | coolant flow path of air_conditionaing | cooling operation, and in the case of heating operation, although the refrigerant | coolant flow path switches with a four-way valve, the connection of refrigerant | coolant piping does not change. Further, the stop valve is in the service panel 1p of FIG. 3 and is not shown.
An electrical component storage box 17 that stores electrical components such as an inverter power source that drives and controls the compressor 2, the expansion valve, the multi-way valve, the blower 14, and the like is incorporated above the machine room 1b.
In the blower chamber 1c separated by the partition plate 1d on the left side of FIG. 1 (a), an air refrigerant heat exchanger 15 is incorporated adjacent to the blower 14 and the blower 14, and a large space is secured for securing an air passage. It has become. The air refrigerant heat exchanger 15 is formed by bending a long refrigerant pipe with a large number of small aluminum thin-plate fins in close contact with each other so that heat is exchanged between the refrigerant in the refrigerant pipe and the air around the fins. The air flow rate of the air flowing between the fins is increased by the blower 14 to increase the amount of heat exchange, and the air flow rate is adjusted to adjust the amount of heat exchange. Therefore, the outside of the heat pump air-conditioning outdoor unit is covered with a plurality of casings 1e, 1f, 1g, 1h, 1k made of sheet metal material and the outdoor unit base 1a except for the installation portion of the air refrigerant heat exchanger 15. The refrigerant pipe in the outdoor unit of the heat pump air-conditioning room has an air conditioner indoor unit (not shown) in which a blower different from 14 and an air refrigerant heat exchanger different from 15 are incorporated, and a stop valve with two refrigerant pipes. Is connected to the outside through a compressor 2, an air refrigerant heat exchanger 15, an expansion valve, a refrigerant pipe, an air refrigerant heat exchanger in the air conditioning indoor unit, a refrigerant pipe, etc. The amount of refrigerant (usually R410A) is enclosed. In addition, the stop valve which is a connection port with the heat pump air-conditioning outdoor unit of two refrigerant | coolant piping connected with the air-conditioning indoor unit is protected by the service panel 1p other than the left side surface part 1k of a housing | casing.
In the cooling operation for cooling the air on the air conditioning indoor unit side, the low-pressure refrigerant sucked from the suction pipe 2d by the compressor 2 through the suction muffler 2f is compressed into high-temperature and high-pressure refrigerant by the compressor 2 and discharged from the compressor 2 The refrigerant is discharged into 2e, the refrigerant exchanges heat with air in the air refrigerant heat exchanger 15, heats the air, and flows into the expansion valve. The low-temperature and low-pressure refrigerant that has been depressurized by the expansion valve and dropped in temperature passes through the refrigerant pipe connected via the stop valve to the air conditioning indoor unit, cools the air by exchanging heat with air in the air refrigerant heat exchanger of the air conditioning indoor unit, The refrigerant returns to the heat pump air-conditioning outdoor unit through a refrigerant pipe different from the going and a stop valve, and flows into the compressor 2 from the suction pipe 2d. In this way, the refrigerant circulates and a heat pump cycle is performed to cool the air on the air conditioning indoor unit side.
In the heat pump air-conditioning outdoor unit, a cooling operation and a heating operation are switched by switching a multi-way valve such as a four-way valve connected to the refrigerant pipe.

ヒートポンプ給湯室外機を例に全体構成を説明する。図3は、ヒートポンプ給湯室外機であるが、ヒートポンプ空調室外機と概ね同じ構造、部品配置であり、図3に示すように前面から見て、左側に送風機14と送風機14の後面側に空気冷媒熱交換器15と送風機14の下方に水冷媒熱交換器16を備えた送風機室1cと、右側に圧縮機2と左側に配置された空気冷媒熱交換器15および圧縮機2と接続して冷媒回路を構成する機能部品と左側に配置された水冷媒熱交換器16と接続して給湯回路を構成する機能部品とその上方に電気部品を収納した電気品収納箱17を備えた機械室1bが、仕切板1dに分離されて配置されている。これらを、送風機室1cの空気冷媒熱交換器15の配置部分を除いて、室外機ベース1a、筐体の前面部1e、筐体の後面部1f、筐体の上面部1g、筐体の右側面部1h、筐体の左側面部1kで覆い、ヒートポンプ空調室外機の外郭を構成している。ヒートポンプ給湯室外機の右側には、図示しない貯湯タンクと接続される水配管用のバルブと電気配線を取り出す端子台があり、それらを保護するため、サービスパネル1pを取り付けている。なお、送風機14は、送風機14の後面に設置された空気冷媒熱交換器15側から空気を吸い込み、空気冷媒熱交換器15に熱交換させ、空気冷媒熱交換器15と反対側へ空気は排出される。ヒートポンプ空調室外機の場合と同じで、空気冷媒熱交換器15の熱交換能力を確保するため、排気は阻害できない。ヒートポンプ給湯室外機も図3に示す向きが前面として設置され、前面には排気の阻害となる障害物は置かず、できるだけ開放された空間を作るように設置されている。したがって、ヒートポンプ給湯室外機も住宅に設置する場合は、後面側に住宅がある場合が多い。
図1において、図示省略しているものもあるが、ヒートポンプ給湯室外機には、冷媒を圧縮する圧縮機2、冷媒を減圧する膨張弁、これらを接続する冷媒配管が仕切板1dによって分離された機械室1bに組み込まれている。圧縮機2は吐出管2eを介して中間ベース7の外に取り出される冷媒配管にて図1(a)の左側の送風機室1c内の水冷媒熱交換器16の冷媒入口と接続されている。水冷媒熱交換器16の冷媒出口と機械室1bに配置された膨張弁を介して、図1(a)の左側の送風機室1c内の空気冷媒熱交換器15の冷媒入口と冷媒配管にて接続されている。空気冷媒熱交換器15の冷媒出口は、機械室1b右側、圧縮機2右側、中間ベース7内にある吸入管2dに冷媒配管にて接続されている。したがって、中間ベース7内の圧縮機2から出た冷媒配管は図1の左側の送風機室1cに向かい、水冷媒熱交換器16を介して機械室1b内の膨張弁に戻り、再び送風機室1cの空気冷媒熱交換器15に向かう。空気冷媒熱交換器15に接続された冷媒配管は、機械室1bに戻り、中間ベース7内の圧縮機2の右側にある吸入管2d、吸入マフラ2fを介して、圧縮機に戻る、冷媒回路を構成している。
また、図1において、図示省略しているが、ヒートポンプ給湯室外機には、給湯を行い、外部の貯湯タンクに供給する水配管とその回路が機械室1bに組み込まれている。外部の貯湯タンクから来た水配管は、ヒートポンプ給湯室外機右下方のサービスパネル1p内の水入口バルブと接続される。水入口バルブ経由した水配管は、ヒートポンプ給湯室外機左の送風機室1c内の水冷媒熱交換器16の水入口と接続されており、水冷媒熱交換器16を介して水冷媒熱交換器16の給湯出口とヒートポンプ給湯室外機右下方のサービスパネル1p内の給湯出口バルブと接続されている。給湯出口バルブは、再び、水配管で、外部の貯湯タンクに接続され、給湯回路を構成している。
なお、機械室1b上方には、圧縮機2、膨張弁、送風機14等を駆動制御するインバータ電源などの電気部品を収納した電気部品収納箱17が組み込まれている。
図1(a)左側に仕切板1dにより分離された送風機室1c内には、送風機14、送風機14に隣接して空気冷媒熱交換器15が組み込まれており、風路確保のため大きな空間となっている。また、送風機14の下方に水冷媒熱交換器16が組み込まれている。空気冷媒熱交換器15は小さなアルミ薄板のフィンが多数密着した長い冷媒配管が略平板状に曲げ成形されており、冷媒配管内の冷媒とフィン周辺の空気とで熱交換が行われるようになっており、送風機14により各フィン間を流れて通過する空気の風量が増やされて熱交換の量が促進され、空気の風量が調節されて熱交換の量が調節されている。水冷媒熱交換器16は送風機室内の送風機14下部のベース1a上に設置されており、水冷媒熱交換器16は長い水配管と長い冷媒配管が密着した状態で収納性良い形状に曲げ成形されており、冷媒配管内の冷媒と水配管内の水とで熱交換が行われるようになっている。ヒートポンプ給湯室外機の外郭は、空気冷媒熱交換器15設置部以外は板金材でできた複数の筐体1e、1f、1g、1h、1kおよび室外機ベース1aで覆われている。また、圧縮機2、水冷媒熱交換器16、膨張弁、空気冷媒熱交換器15、冷媒配管等が接続された密閉空間内に所定の量の冷媒(通常CO2)が封入されている。また、ヒートポンプ給湯室外機は、貯湯タンクと水ポンプが組み込まれた貯湯装置(図示せず)が外部にあり、2本の水配管で外部接続されている。この2本の水配管のヒートポンプ給湯室外機との接続口であるバルブは、筐体の左側面部1k以外にサービスパネル1pにて保護されている。
貯湯装置内の貯湯タンク内の湯量を増やすための沸き上げ運転では、圧縮機2により吸入マフラを介して吸入管2dから吸入された低圧冷媒は圧縮機2で高温高圧冷媒に圧縮され、圧縮機2から吐出管2e内に吐出され、冷媒は水冷媒熱交換器16で水と熱交換し水を加熱し湯を生成させ、膨張弁に流入する。膨張弁で減圧され温度降下した低温低圧冷媒は空気冷媒熱交換器15で空気と熱交換し空気から受熱され、吸入管2dから吸入マフラ2fを介して圧縮機2に流入する。このように冷媒が循環してヒートポンプサイクルが行われる。同時に、貯湯装置内の水ポンプにより貯湯タンク内下部の水が水入口バルブを介して水配管と接続されたヒートポンプ給湯室外機に往き、ヒートポンプ給湯室外機の水冷媒熱交換器16で冷媒と熱交換し加熱されて水から湯となり、湯は往きとは別の水配管を給湯出口バルブを介して通り貯湯装置に還り、貯湯タンク上部に戻されて貯湯タンク内の湯量が増やされている。
The overall configuration will be described using a heat pump hot water supply outdoor unit as an example. FIG. 3 shows a heat pump hot water supply outdoor unit, which has substantially the same structure and component arrangement as the heat pump air conditioning outdoor unit. As shown in FIG. 3, the air refrigerant on the left side of the blower 14 and the rear side of the blower 14 is viewed from the front. A blower chamber 1c having a water refrigerant heat exchanger 16 below the heat exchanger 15 and the blower 14, a compressor 2 on the right side, and an air refrigerant heat exchanger 15 and a compressor 2 arranged on the left side are connected to the refrigerant. A machine room 1b having a functional part constituting a circuit and a functional part constituting a hot water supply circuit connected to a water-refrigerant heat exchanger 16 disposed on the left side and an electric part storage box 17 containing an electric part above the functional part , Are separated from the partition plate 1d. Except for the arrangement part of the air refrigerant heat exchanger 15 in the blower chamber 1c, these are the outdoor unit base 1a, the front surface portion 1e of the housing, the rear surface portion 1f of the housing, the upper surface portion 1g of the housing, the right side of the housing. It is covered with a surface portion 1h and a left side surface portion 1k of the housing, and constitutes an outer shell of the heat pump air-conditioning outdoor unit. On the right side of the heat pump hot water supply outdoor unit is a water piping valve connected to a hot water storage tank (not shown) and a terminal block for taking out electrical wiring, and a service panel 1p is attached to protect them. The blower 14 sucks air from the air refrigerant heat exchanger 15 side installed on the rear surface of the blower 14, causes the air refrigerant heat exchanger 15 to exchange heat, and discharges air to the opposite side of the air refrigerant heat exchanger 15. Is done. As in the case of the heat pump air-conditioning outdoor unit, the heat exchange capability of the air refrigerant heat exchanger 15 is ensured, so that exhaust cannot be inhibited. The heat pump hot water supply outdoor unit is also installed with the direction shown in FIG. 3 as the front surface, and an obstruction that hinders exhaust is not placed on the front surface so as to create an open space as much as possible. Therefore, when a heat pump hot water supply outdoor unit is also installed in a house, there are many houses on the rear side.
In FIG. 1, although there are some illustrations omitted, in the heat pump hot water outdoor unit, the compressor 2 that compresses the refrigerant, the expansion valve that decompresses the refrigerant, and the refrigerant pipe that connects them are separated by the partition plate 1d. It is incorporated in the machine room 1b. The compressor 2 is connected to the refrigerant inlet of the water-refrigerant heat exchanger 16 in the blower chamber 1c on the left side of FIG. 1A by a refrigerant pipe taken out from the intermediate base 7 through the discharge pipe 2e. Through the refrigerant outlet of the water-refrigerant heat exchanger 16 and the expansion valve arranged in the machine room 1b, the refrigerant inlet and refrigerant pipe of the air refrigerant heat exchanger 15 in the blower chamber 1c on the left side of FIG. It is connected. The refrigerant outlet of the air refrigerant heat exchanger 15 is connected to a suction pipe 2d located in the right side of the machine room 1b, the right side of the compressor 2, and the intermediate base 7 through a refrigerant pipe. Accordingly, the refrigerant pipe exiting from the compressor 2 in the intermediate base 7 is directed to the blower chamber 1c on the left side of FIG. 1, returns to the expansion valve in the machine chamber 1b via the water / refrigerant heat exchanger 16, and is again blower chamber 1c. Toward the air refrigerant heat exchanger 15. The refrigerant pipe connected to the air refrigerant heat exchanger 15 returns to the machine room 1b, and returns to the compressor via the suction pipe 2d and the suction muffler 2f on the right side of the compressor 2 in the intermediate base 7. Is configured.
Although not shown in FIG. 1, the heat pump hot water supply outdoor unit includes a water pipe for supplying hot water and supplying it to an external hot water storage tank and its circuit in the machine room 1 b. A water pipe coming from an external hot water storage tank is connected to a water inlet valve in the service panel 1p on the lower right side of the heat pump hot water supply outdoor unit. The water pipe via the water inlet valve is connected to the water inlet of the water refrigerant heat exchanger 16 in the blower chamber 1 c on the left side of the heat pump hot water supply outdoor unit, and the water refrigerant heat exchanger 16 is connected via the water refrigerant heat exchanger 16. And a hot water outlet outlet valve in the service panel 1p on the lower right side of the heat pump hot water outdoor unit. The hot water supply outlet valve is again connected to an external hot water storage tank by water piping, and constitutes a hot water supply circuit.
An electrical component storage box 17 that stores electrical components such as an inverter power source that drives and controls the compressor 2, the expansion valve, the blower 14, and the like is incorporated above the machine room 1b.
In the blower chamber 1c separated by the partition plate 1d on the left side of FIG. 1 (a), an air refrigerant heat exchanger 15 is incorporated adjacent to the blower 14 and the blower 14, and a large space is secured for securing an air passage. It has become. Further, a water refrigerant heat exchanger 16 is incorporated below the blower 14. The air refrigerant heat exchanger 15 is formed by bending a long refrigerant pipe with a large number of small aluminum thin-plate fins in close contact with each other so that heat is exchanged between the refrigerant in the refrigerant pipe and the air around the fins. The air flow rate of the air flowing between the fins is increased by the blower 14 to increase the amount of heat exchange, and the air flow rate is adjusted to adjust the amount of heat exchange. The water-refrigerant heat exchanger 16 is installed on the base 1a below the blower 14 in the blower chamber, and the water-refrigerant heat exchanger 16 is bent and formed into a shape with good storage properties in a state where the long water pipe and the long refrigerant pipe are in close contact with each other. Thus, heat exchange is performed between the refrigerant in the refrigerant pipe and the water in the water pipe. The exterior of the heat pump hot water supply outdoor unit is covered with a plurality of casings 1e, 1f, 1g, 1h, 1k made of sheet metal, and the outdoor unit base 1a, except for the installation portion of the air refrigerant heat exchanger 15. In addition, a predetermined amount of refrigerant (usually CO2) is sealed in a sealed space to which the compressor 2, the water refrigerant heat exchanger 16, the expansion valve, the air refrigerant heat exchanger 15, the refrigerant pipe, and the like are connected. The heat pump hot water supply outdoor unit has a hot water storage device (not shown) in which a hot water storage tank and a water pump are incorporated, and is externally connected by two water pipes. A valve that is a connection port of the two water pipes to the heat pump hot water supply outdoor unit is protected by the service panel 1p in addition to the left side surface portion 1k of the housing.
In the boiling operation for increasing the amount of hot water in the hot water storage tank in the hot water storage device, the low pressure refrigerant sucked from the suction pipe 2d through the suction muffler by the compressor 2 is compressed into high temperature and high pressure refrigerant by the compressor 2, and the compressor 2 is discharged into the discharge pipe 2e, and the refrigerant exchanges heat with water in the water / refrigerant heat exchanger 16, heats the water to generate hot water, and flows into the expansion valve. The low-temperature and low-pressure refrigerant depressurized by the expansion valve and lowered in temperature is exchanged with the air by the air refrigerant heat exchanger 15 to receive heat from the air, and flows into the compressor 2 from the suction pipe 2d through the suction muffler 2f. Thus, the refrigerant circulates and a heat pump cycle is performed. At the same time, water in the lower part of the hot water storage tank goes to the heat pump hot water outdoor unit connected to the water pipe through the water inlet valve by the water pump in the hot water storage device, and the refrigerant and heat are transferred in the water refrigerant heat exchanger 16 of the heat pump hot water outdoor unit. The water is changed and heated to change from water to hot water, and the hot water passes through a water pipe different from the going-out via the hot water outlet valve and returns to the hot water storage device, and is returned to the upper part of the hot water storage tank to increase the amount of hot water in the hot water storage tank.

次に圧縮機2の動作とヒートポンプ室外機1の騒音発生について説明する。
図1の電気部品収納箱17に収納されたインバータ電源あるいはヒートポンプ室外機1の外部から供給される家庭用電源から圧縮機2内のモータに電源供給されるとモータが駆動し、モータと接続された圧縮機2内の圧縮部も駆動する。家庭用電源の場合は、モータは家庭用電源の周波数と同じ速度で一定に回転しているが、インバータ電源の場合は、モータの回転数を数十rps〜数百rps程度に変化させ、冷媒が循環して行われるヒートポンプサイクルの循環速度を変えることによって、冷却や昇温の量や速度を制御している。圧縮機2内の圧縮部が駆動すると圧縮部内で冷媒の圧縮動作が行われ、この時冷媒の圧力変動および内部の可動部品の動作により、圧縮機2には上下方向、横方向等いくつかの方向のそれぞれ並進振動、回転振動が発生し、通常1kHz程度以下の低〜中周波振動で、圧縮機2の回転数の整数倍の周波数成分が大きく発生する。圧縮機2の振動は、第1防振マウント6、中間ベース7、第2防振マウント8からヒートポンプ室外機1のベース1aに伝達し、筐体1e、1f、1g、1h、1kに伝達する。また、圧縮機2の振動は圧縮機2の吸入管2d、吐出管2eから空気冷媒熱交換器15、ヒートポンプ室外機1のベース1a、筐体1e、1f、1g、1h、1kに伝達する。また、ヒートポンプ室外機1がヒートポンプ給湯室外機の場合には、圧縮機2の振動は圧縮機2の吐出管2eから水冷媒熱交換器16、ヒートポンプ室外機1のベース1aに伝達し、筐体1e、1f、1g、1h、1kに伝達する。このように圧縮機2の振動がヒートポンプ室外機1のベース1a、筐体1e、1f、1g、1h、1kに伝達し、ヒートポンプ室外機1の振動、騒音の原因となっている。また、これらの周波数成分とヒートポンプ室外機の筐体や内部の冷媒配管や中間ベース自身が持つ固有振動数により共振現象が発生し、大きな振動や騒音を引き起こすこともある。しかしながら、図1に示すように圧縮機2、第1防振マウント6、中間ベース7、第2防振マウント8を組み合わせた構造としているので、中間ベース7の質量と第1防振マウント6、第2防振マウント8のバネ作用により、第1防振マウント6をベース1aに設置した通常の構造の場合と比較して圧縮機2の振動は大きく低減し、ヒートポンプ室外機1の振動、騒音は低減している。また、この構成にて振動低減効果を向上するには、中間ベースの質量の調整を行うが、従来の側面部を持たない中間ベースに比べて、側面部の分の質量が増し、質量増加による安定性が増すため、振動低減に著しい効果がある。また、逆に、振動低減効果が十分であれば、中間ベースの板の肉厚を落とし、質量を減らすことが可能であり、材料費を上げることなく、効率的に調整が可能である。また、共振現象により引き起こされた振動や騒音の場合も、質量や形状を調整することは容易である。
Next, the operation of the compressor 2 and the noise generation of the heat pump outdoor unit 1 will be described.
When power is supplied to the motor in the compressor 2 from the inverter power source housed in the electrical component storage box 17 of FIG. 1 or the household power source supplied from the outside of the heat pump outdoor unit 1, the motor is driven and connected to the motor. The compressor in the compressor 2 is also driven. In the case of a household power source, the motor rotates constantly at the same speed as the frequency of the household power source. However, in the case of an inverter power source, the rotational speed of the motor is changed to about several tens to several hundreds rps, The amount and speed of cooling and heating are controlled by changing the circulation speed of the heat pump cycle in which the heat is circulated. When the compression section in the compressor 2 is driven, the refrigerant is compressed in the compression section. At this time, the compressor 2 is moved in several directions such as the vertical direction and the horizontal direction by the pressure fluctuation of the refrigerant and the operation of the movable parts inside. Translational and rotational vibrations occur in each direction, and a frequency component that is an integral multiple of the number of rotations of the compressor 2 is generally generated with low to medium frequency vibrations of about 1 kHz or less. The vibration of the compressor 2 is transmitted from the first vibration isolation mount 6, the intermediate base 7, and the second vibration isolation mount 8 to the base 1a of the heat pump outdoor unit 1, and is transmitted to the casings 1e, 1f, 1g, 1h, and 1k. . The vibration of the compressor 2 is transmitted from the suction pipe 2d and the discharge pipe 2e of the compressor 2 to the air refrigerant heat exchanger 15, the base 1a of the heat pump outdoor unit 1, the casings 1e, 1f, 1g, 1h, and 1k. When the heat pump outdoor unit 1 is a heat pump hot water supply outdoor unit, the vibration of the compressor 2 is transmitted from the discharge pipe 2e of the compressor 2 to the water refrigerant heat exchanger 16 and the base 1a of the heat pump outdoor unit 1, 1e, 1f, 1g, 1h, 1k. In this way, the vibration of the compressor 2 is transmitted to the base 1a, the casings 1e, 1f, 1g, 1h, and 1k of the heat pump outdoor unit 1, causing the vibration and noise of the heat pump outdoor unit 1. In addition, a resonance phenomenon may occur due to these frequency components and the natural frequency of the casing of the heat pump outdoor unit, the internal refrigerant piping, and the intermediate base itself, which may cause large vibration and noise. However, since the compressor 2, the first vibration isolation mount 6, the intermediate base 7, and the second vibration isolation mount 8 are combined as shown in FIG. 1, the mass of the intermediate base 7 and the first vibration isolation mount 6, Due to the spring action of the second anti-vibration mount 8, the vibration of the compressor 2 is greatly reduced compared to the normal structure in which the first anti-vibration mount 6 is installed on the base 1a, and the vibration and noise of the heat pump outdoor unit 1 are reduced. Is decreasing. In addition, in order to improve the vibration reduction effect with this configuration, the mass of the intermediate base is adjusted, but the mass of the side surface portion is increased compared to the conventional intermediate base having no side surface portion. Since the stability is increased, there is a significant effect on vibration reduction. Conversely, if the vibration reduction effect is sufficient, the thickness of the intermediate base plate can be reduced to reduce the mass, and the adjustment can be made efficiently without increasing the material cost. Also, it is easy to adjust the mass and shape even in the case of vibration and noise caused by the resonance phenomenon.

また、圧縮機2駆動中は、内部で可動部品が摺動、接触、衝突し、冷媒の圧力脈動も発生し、圧縮機2のモータに供給されるインバータ電源、あるいは家庭用電源の特性によりモータ振動も発生しており、これらが原因で圧縮機2の内部および表面で騒音が発生している。これらは通常500Hz程度以上の中〜高周波の騒音で、圧縮機2から放射され、ヒートポンプ室外機1仕切板1d、筐体1e、1f、1g、1h、1k等で遮音または低減されてヒートポンプ室外機1外に出るが、遮音が不十分だと、ヒートポンプ室外機1の騒音増加の原因となっている。しかしながら、図2に示すように中間ベース7は圧縮機2下方の第1防振マウント設置面部7bから圧縮機2側方のヒートポンプ室外機1の前面側に面する前側面部7cと後面側に面する後側面部7fにつながる一体型構造であり、略L字状(対2面で略コ字状)に折り曲げられ、前側面部7cと後側面部7fの上端が圧縮機2高さより上方まであるような形状となっているので、圧縮機2から放射される騒音は中間ベース7の前側面部7cと後側面部7fで遮音または低減されて前側面部7cと後側面部7fの外側に出て、その騒音はヒートポンプ室外機1の仕切板1d、筐体1e、1f、1g、1h、1k等でさらに遮音または低減されてヒートポンプ室外機1の外に出る。このとき、中間ベース7の前側面部7cはヒートポンプ室外機1の前面側、中間ベース7の後側面部7fは後面側を向いており、前面方向と後面方向の騒音が中間ベース7によって遮音または低減される。ヒートポンプ室外機1の筐体の前面部1eと筐体の後面部1fは、平面のため、騒音を反射しやすい構造である。特に、ヒートポンプ室外機1は、図1(b)に示すように住宅の外壁20を背に設置される場合が多いので、後面方向から放射される騒音や振動が住宅の外壁20に伝わり、騒音を大きくしたり、住宅の外壁20と共振現象を起こし外壁20に伝わった騒音を増幅したり、住宅の外壁20に騒音が反射して、前面方向の騒音を増幅したりする。
これに対して、圧縮機2の左方向には、仕切板1dと送風機室1cが配置されている。送風機室1c内では圧縮機2が駆動されているときは常に送風機14は送風を行うため、駆動されている。よって、圧縮機2の騒音は、送風機室1cという大きな空間を隔てるため減衰することと、送風機14の騒音と混在することと、送風機14によって空気がかき乱されることによって、筐体の左側面部1k側では、聞こえにくく、ほとんどが送風機14の騒音となっている。よって、仕切板1dの表面積が筐体1e、1fに比べ小さいことから放出される騒音が少ないこと、送風機室1cという大きな空間を隔てるため減衰する上、送風機14の影響で圧縮機2の騒音が少なくなっていることにより、仕切板1dの騒音対策強化で十分な効果が発揮されている。
また、圧縮機の右方向には、ヒートポンプ室外機1の筐体の右側面部1hが配置されている。ヒートポンプ室外機1の右側、すなわち、筐体の右側面部1hには、空調室内機と接続する冷媒配管をつなぐサービスポートや外部の貯湯タンクと接続するバルブや電気配線を接続する端子台などがあり、設置業者が作業を行う。これら端子台やバルブは、安全、保安上の理由から、サービスパネル1pによって、保護されている。しかし、設置業者の作業性確保のため、騒音については、もともと、漏れやすい構造なので、サービスパネル1pや別途設けられる遮音材や吸音材などによって、強化が図られているとともに、仕切板1dや送風機室1cとの対抗面積が筐体1e、1fに比べ小さいことからの騒音の反射が少ないこと、筐体の右側面部1hの表面積が筐体1e、1fに比べ小さいことから放出される騒音が少ないことにより、筐体の右側面部1hとサービスパネル1pで十分な効果が発揮されている。
また、圧縮機2が組み込まれている機械室1bには、左側に配置された送風機室1c内の空気冷媒熱交換器15と圧縮機2やヒートポンプ室外機1右側下方に配置されたストップバルブと接続する冷媒配管が横断する形で設けられている。また、ヒートポンプ給湯室外機では、左側に配置された送風機室1c内の水冷媒熱交換器16と、ヒートポンプ室外機1右側下方に配置されたバルブを接続する水配管が横断する形で設けられている。また、圧縮機2の冷媒吸入は、右側下部に配置され、同じ右側方には、吸入マフラ2fが配置されており、振動や他の配管へ当たり防止のため圧縮機側方に固定され、大きな空間を占めている。そのため、圧縮機の左右側方に、冷媒配管や水配管の配置のため、障害物を設けることはないようにしている。無理に、中間ベース7の前側面部7cや後側面部7fのような側面部を設けた場合、ヒートポンプ室外機1の外形が側方に大きくなり、費用が増大する。仕切板1dや筐体の右側面部1hにて、遮音材を設けたり、吸音材を貼ったりする遮音対策を行った方が良い。冷媒配管の配置を設計する上でも、圧縮機周辺特に左右に障害物があっては、スムーズな設計ができず、製品の基本性能も低下させる。
よって、中間ベース7の前側面部7cと後側面部7fによるヒートポンプ室外機1の前面側と後面側の対策が重要となっている。
中間ベース7の前側面部7cの圧縮機2に面する内面7dと圧縮機2に面しない外面7eと後側面部7fの圧縮機2に面する内面7gと圧縮機2に面しない外面7hの両側面部の両面に繊維材、フォーム材のような吸音材9が貼り付けられているので、両側で騒音を吸音して反射を抑制するので、ヒートポンプ室外機1から外に出る騒音は大きく低減する。さらに、ヒートポンプ室外機1の筐体1e、1f、1g、1h内側も利用して吸音できる材料を設けたりすることが可能となり、騒音低減のための設計にも余裕ができる。また、中間ベース7を利用した騒音低減方法は、ヒートポンプ室外機1の筐体1e、1f、1g、1h内側だけを利用する場合よりも、騒音の源である圧縮機に近い位置で低減効果を発揮するため、騒音が拡散する前に遮音または低減することができ、さらに静粛面で優れたヒートポンプ室外機を得ることができる。また、別の遮音材を設ける必要が無くなるので、質量、材料費が中間ベース7分からさらに大きく増加する事はなく、ヒートポンプ室外機1の質量、材料費の増加が抑制される。また、中間ベース7は隙間ない一体型構造としたことにより、圧縮機2からの騒音の漏れは少なく、遮音効果が高くできる。さらに、中間ベース7を一体構造としたことにより、ヒートポンプ室外機1に中間ベース7を取り付ける際の作業効率も高く、組み立て費用の抑制にもなる。また、中間ベース7を密閉容器構造とせず、ヒートポンプ室外機1の前面側と後面側に中間ベースの前側面部7cと後側面部7fを設け、左右側面部は開放したので、ヒートポンプ室外機1の右側と左側から圧縮機2を取り付ける作業や冷媒配管の修正などの組み立て作業が容易にでき、圧縮機2周辺の冷媒配管の設計や工作などにも余裕ができて、ヒートポンプ室外機1の組み立て費の増加が大幅に抑制される。
Further, while the compressor 2 is being driven, the movable parts slide, contact, and collide inside, and refrigerant pressure pulsation is also generated. The motor is driven by the characteristics of the inverter power supply or household power supply supplied to the motor of the compressor 2. Vibration is also generated, and noise is generated inside and on the surface of the compressor 2 due to these vibrations. These are usually medium to high frequency noises of about 500 Hz or more, and are radiated from the compressor 2 and are insulated or reduced by the heat pump outdoor unit 1 partition plate 1d, housings 1e, 1f, 1g, 1h, 1k, etc. If the sound insulation is insufficient, the noise of the heat pump outdoor unit 1 is increased. However, as shown in FIG. 2, the intermediate base 7 is provided on the front side portion 7 c facing the front side of the heat pump outdoor unit 1 on the side of the compressor 2 from the first vibration isolation mount installation surface portion 7 b below the compressor 2 and on the rear side. It is an integrated structure connected to the facing rear side surface part 7f, and is bent in a substantially L shape (substantially U shape on the two sides), and the upper ends of the front side surface part 7c and the rear side surface part 7f are above the height of the compressor 2 Therefore, the noise radiated from the compressor 2 is sound-insulated or reduced by the front side surface portion 7c and the rear side surface portion 7f of the intermediate base 7, and outside the front side surface portion 7c and the rear side surface portion 7f. The noise is further insulated or reduced by the partition plate 1d of the heat pump outdoor unit 1, the casings 1e, 1f, 1g, 1h, 1k, etc., and goes out of the heat pump outdoor unit 1. At this time, the front side surface portion 7c of the intermediate base 7 faces the front surface side of the heat pump outdoor unit 1, and the rear side surface portion 7f of the intermediate base 7 faces the rear surface side. Reduced. Since the front part 1e of the housing of the heat pump outdoor unit 1 and the rear surface part 1f of the housing are flat, they have a structure that easily reflects noise. In particular, as shown in FIG. 1B, the heat pump outdoor unit 1 is often installed with the outer wall 20 of the house in the back, so that noise and vibration radiated from the rear surface are transmitted to the outer wall 20 of the house, and the noise , The noise that is caused to resonate with the outer wall 20 of the house and amplify the noise transmitted to the outer wall 20, or the noise is reflected on the outer wall 20 of the house to amplify the noise in the front direction.
On the other hand, the partition plate 1d and the blower chamber 1c are arranged on the left side of the compressor 2. In the blower chamber 1c, the blower 14 is driven to blow air whenever the compressor 2 is driven. Therefore, the noise of the compressor 2 is attenuated because it separates a large space called the blower chamber 1c, mixed with the noise of the blower 14, and the air is disturbed by the blower 14, so that the left side 1k side of the housing Then, it is difficult to hear, and most of them are noise of the blower 14. Therefore, since the surface area of the partition plate 1d is smaller than that of the casings 1e and 1f, less noise is emitted, and since the large space of the blower chamber 1c is separated, the noise of the compressor 2 is affected by the blower 14. Due to the reduction, a sufficient effect is exhibited by the noise countermeasure enhancement of the partition plate 1d.
Further, the right side surface portion 1h of the housing of the heat pump outdoor unit 1 is disposed in the right direction of the compressor. On the right side of the heat pump outdoor unit 1, that is, on the right side surface 1h of the housing, there are a service port that connects a refrigerant pipe connected to the air conditioning indoor unit, a valve that connects to an external hot water storage tank, and a terminal block that connects electrical wiring. The installer will do the work. These terminal blocks and valves are protected by the service panel 1p for safety and security reasons. However, in order to ensure the workability of installers, noise is originally a structure that easily leaks, so it is reinforced by the service panel 1p, a separately provided sound insulation or sound absorbing material, and the partition plate 1d or blower Less noise is reflected from the fact that the area facing the chamber 1c is smaller than that of the housings 1e and 1f, and the surface area of the right side surface 1h of the housing is smaller than that of the housings 1e and 1f. Thus, a sufficient effect is exhibited by the right side surface portion 1h of the housing and the service panel 1p.
In the machine room 1b in which the compressor 2 is incorporated, an air refrigerant heat exchanger 15 in the blower room 1c arranged on the left side and a stop valve arranged on the lower right side of the compressor 2 and the heat pump outdoor unit 1 are provided. A refrigerant pipe to be connected is provided so as to cross. Further, in the heat pump hot water supply outdoor unit, the water refrigerant heat exchanger 16 in the blower chamber 1c disposed on the left side and the water pipe connecting the valve disposed on the lower right side of the heat pump outdoor unit 1 are provided so as to cross. Yes. The refrigerant suction of the compressor 2 is arranged at the lower right side, and the suction muffler 2f is arranged on the same right side. The suction muffler 2f is fixed to the side of the compressor in order to prevent vibration and hitting other pipes. Occupies space. Therefore, obstacles are not provided on the left and right sides of the compressor due to the arrangement of refrigerant pipes and water pipes. Forcibly, when the side surface portions such as the front side surface portion 7c and the rear side surface portion 7f of the intermediate base 7 are provided, the outer shape of the heat pump outdoor unit 1 is increased laterally, which increases the cost. It is better to take a sound insulation measure such as providing a sound insulation material or attaching a sound absorption material at the partition plate 1d or the right side surface portion 1h of the housing. Even when designing the arrangement of the refrigerant piping, if there are obstacles around the compressor, especially on the left and right sides, it will not be possible to design smoothly and the basic performance of the product will be reduced.
Therefore, the measures on the front side and the rear side of the heat pump outdoor unit 1 by the front side surface portion 7c and the rear side surface portion 7f of the intermediate base 7 are important.
An inner surface 7 d of the front side surface portion 7 c of the intermediate base 7 facing the compressor 2, an outer surface 7 e not facing the compressor 2, an inner surface 7 g facing the compressor 2 of the rear side surface portion 7 f, and an outer surface 7 h not facing the compressor 2. Since sound absorbing material 9 such as a fiber material or foam material is attached to both sides of both side portions, noise is absorbed on both sides and reflection is suppressed, so that the noise coming out of heat pump outdoor unit 1 is greatly reduced. . Furthermore, it is possible to provide a material that can absorb sound by using the inside of the casings 1e, 1f, 1g, and 1h of the heat pump outdoor unit 1, and there is room for a design for noise reduction. In addition, the noise reduction method using the intermediate base 7 has a reduction effect at a position closer to the compressor that is the source of noise than when only the inside of the housing 1e, 1f, 1g, 1h of the heat pump outdoor unit 1 is used. Therefore, the noise can be reduced or reduced before the noise is diffused, and a heat pump outdoor unit excellent in quietness can be obtained. Further, since there is no need to provide another sound insulating material, the mass and material cost do not increase further from the intermediate base 7 minutes, and the increase in the mass and material cost of the heat pump outdoor unit 1 is suppressed. In addition, since the intermediate base 7 has an integrated structure with no gap, noise leakage from the compressor 2 is small, and the sound insulation effect can be enhanced. Furthermore, since the intermediate base 7 has an integral structure, the work efficiency when attaching the intermediate base 7 to the heat pump outdoor unit 1 is high, and the assembly cost can be reduced. Moreover, since the intermediate base 7 is not formed into a sealed container structure, the front side surface portion 7c and the rear side surface portion 7f of the intermediate base are provided on the front side and the rear surface side of the heat pump outdoor unit 1, and the left and right side surfaces are opened. Assembling of the heat pump outdoor unit 1 allows easy assembly work such as attaching the compressor 2 from the right side and left side of the compressor and correcting refrigerant pipes, and also allows for design and construction of refrigerant pipes around the compressor 2. The increase in costs is greatly suppressed.

以上のように、本発明の中間ベース7の構造を適用すると、低〜中〜高周波の広い周波数域でのヒートポンプ室外機1の振動、騒音低減に効果があり、ヒートポンプ室外機1の質量、材料費、組み立て費の増加が抑制される効果がある。また、図2に示すように中間ベース7を隙間ない一体型構造としたことにより、圧縮機2からの騒音の漏れは少なく、遮音効果が高くでき、また、ヒートポンプ室外機1への取り付けが容易となり、組み立て費も抑制される。
また、中間ベース7の前側面部7cと後側面部7fの寸法を増やして圧縮機2側方を囲むような形状として騒音低減効果が大きくなる場合には、圧縮機2側方を囲むような形状にしても構わない。また、騒音の種類が、圧縮機2が原因で発生しているものより、圧縮機2と冷媒配管、ヒートポンプ室外機1の筐体1e、1f、1g、1h、1k等との共振や中間ベース7の材料、形状により決まる固有振動数よる共振が原因の場合は、中間ベース7の前側面部7cと後側面部7fの上端が圧縮機2の高さより上方までなくても十分な騒音低減効果がある場合があり、共振周波数と中間ベース7の質量や前側面部7cと後側面部7fの高さの調整によっては質量が軽い方が良いまたは前側面部7cと後側面部7fが低い方が良い場合は、中間ベース7の前側面部7cと後側面部7fの上端を圧縮機2高さより低くしても構わない。また、中間ベース7の前側面部7cの内面7d、外面7eと後側面部7fの内面7g、外面7hのいずれかに吸音材9を貼り付けるだけでも十分な騒音低減効果がある場合や、騒音の原因が共振にあり固有振動数である共振周波数を避けるため、どちらか一方へ貼った方が良い場合には、どちらかに貼り付けるだけでも構わないし、中間ベース7の前側面部7cと後側面部7fに吸音材9が貼り付けてもなくても十分な騒音低減効果がある場合には、吸音材9が貼り付けてなくても構わない。また、騒音低減効果が足りない場合には、ヒートポンプ室外機1の筐体1e、1f内側も吸音材を貼り付ることに利用することができる。
また、中間ベース7の前側面部7cと後側面部7fがヒートポンプ室外機1の前面側と後面側にある例を示したが、共振現象を避けるためや中間ベース7の前側面部7cと後側面部7fの騒音の反射作用により騒音の漏れが発生するなどの騒音低減効果と機械室1bの空き空間余裕と冷媒配管や水配管の設計に余裕によっては、ヒートポンプ室外機1の右側の圧縮機2とヒートポンプ室外機の筐体の右側面部1hとの間に中間ベース7の側面部に相当するものを設けても構わない。
また、圧縮機2の上部に組み込まれた電気部品収納箱17を仕切板1d、筐体の右側面部1h等に固定せず、電気部品収納箱17と中間ベース7の上部を、ネジや勘合によって、つなぎ合わせても構わない。中間ベース7と電気部品収納箱17をつなぎ合わせることによって、中間ベース7の見かけ上の質量が増加し、振動に対する安定性が向上する。中間ベース7の前側面部7cと後側面部7fの上端が電気部品収納箱17に押さえられるので、中間ベース7としての強度や剛性も向上し、前側面部7cと後側面部7fの上端に伝わり上端が振動することも抑制される。
また、CO2冷媒を使用したヒートポンプ給湯室外機ではR410A冷媒等を使用したヒートポンプ空調室外機と比較して、冷媒圧力が高く、圧縮機2駆動中の圧縮機2内の圧縮部内の冷媒の圧力変動が大きくなるので、圧縮機2駆動中に圧縮機2に発生する振動と圧縮機2から放射される騒音は大きくなり、ヒートポンプ室外機1の騒音が大きくなるので、本発明の中間ベース7の構造を適用すると、ヒートポンプ室外機1の騒音低減に大きな効果がある。特に、給湯を行うヒートポンプ給湯室外機は、深夜電力を利用する場合が多く、深夜の騒音や振動には使用者の関心が高く、本発明の低減効果は著しく貢献する。
As described above, when the structure of the intermediate base 7 of the present invention is applied, it is effective in reducing the vibration and noise of the heat pump outdoor unit 1 in a wide frequency range from low to medium to high frequency. This has the effect of suppressing increases in costs and assembly costs. Further, as shown in FIG. 2, the intermediate base 7 has an integrated structure with no gap, so that noise leakage from the compressor 2 can be reduced, the sound insulation effect can be increased, and the heat pump outdoor unit 1 can be easily attached. As a result, assembly costs are also reduced.
Further, when the noise reduction effect is increased by increasing the dimensions of the front side surface portion 7c and the rear side surface portion 7f of the intermediate base 7 to surround the side of the compressor 2, the side of the compressor 2 is surrounded. You may make it into a shape. Further, since the noise type is caused by the compressor 2, resonance between the compressor 2 and the refrigerant pipe, the casings 1e, 1f, 1g, 1h, 1k, etc. of the heat pump outdoor unit 1 and the intermediate base If the resonance is caused by the natural frequency determined by the material and shape of the No. 7, the noise reduction effect is sufficient even if the upper ends of the front side surface portion 7c and the rear side surface portion 7f of the intermediate base 7 are not higher than the height of the compressor 2. Depending on the adjustment of the resonance frequency and the mass of the intermediate base 7 and the height of the front side surface portion 7c and the rear side surface portion 7f, the lighter mass is better or the front side surface portion 7c and the rear side surface portion 7f are lower. If it is good, the upper ends of the front side surface portion 7c and the rear side surface portion 7f of the intermediate base 7 may be lower than the height of the compressor 2. In addition, when the sound absorbing material 9 is simply attached to any one of the inner surface 7d of the front side surface portion 7c, the outer surface 7e and the inner surface 7g of the rear side surface portion 7f, and the outer surface 7h of the intermediate base 7, a noise reduction effect can be obtained. In order to avoid the resonance frequency, which is the natural frequency, due to resonance, if it is better to apply it to either one, it may be applied only to either the front side 7c of the intermediate base 7 and the rear side If there is a sufficient noise reduction effect even if the sound absorbing material 9 is not attached to the side surface portion 7f, the sound absorbing material 9 may not be attached. Moreover, when the noise reduction effect is insufficient, the insides of the housings 1e and 1f of the heat pump outdoor unit 1 can also be used for attaching the sound absorbing material.
Moreover, although the example in which the front side surface part 7c and the rear side surface part 7f of the intermediate base 7 are on the front side and the rear side of the heat pump outdoor unit 1 has been shown, the front side surface part 7c and the rear side of the intermediate base 7 are avoided in order to avoid a resonance phenomenon. The compressor on the right side of the heat pump outdoor unit 1 depends on the noise reduction effect such as noise leakage due to the noise reflecting action of the side surface portion 7f, the vacant space margin of the machine room 1b, and the design of the refrigerant piping and water piping. What corresponds to the side part of the intermediate base 7 may be provided between 2 and the right side part 1h of the housing of the heat pump outdoor unit.
Further, the electric component storage box 17 incorporated in the upper portion of the compressor 2 is not fixed to the partition plate 1d, the right side surface portion 1h of the housing, etc., and the upper portions of the electric component storage box 17 and the intermediate base 7 are connected by screws or fittings. You can connect them together. By connecting the intermediate base 7 and the electrical component storage box 17, the apparent mass of the intermediate base 7 is increased and the stability against vibration is improved. Since the upper ends of the front side surface portion 7c and the rear side surface portion 7f of the intermediate base 7 are pressed by the electric component storage box 17, the strength and rigidity as the intermediate base 7 are improved, and the upper ends of the front side surface portion 7c and the rear side surface portion 7f are improved. It is also suppressed that the upper end is vibrated.
In addition, in the heat pump hot water supply outdoor unit using CO2 refrigerant, the refrigerant pressure is higher than in the heat pump air conditioning outdoor unit using R410A refrigerant or the like, and the pressure fluctuation of the refrigerant in the compression unit in the compressor 2 during driving of the compressor 2 Therefore, the vibration generated in the compressor 2 during driving of the compressor 2 and the noise radiated from the compressor 2 are increased, and the noise of the heat pump outdoor unit 1 is increased, so that the structure of the intermediate base 7 of the present invention is increased. Is effective in reducing the noise of the heat pump outdoor unit 1. In particular, a heat pump hot water supply outdoor unit that supplies hot water often uses midnight power, and the user's interest is high in midnight noise and vibration, and the reduction effect of the present invention contributes significantly.

以上の実施の形態1では、中間ベース7のヒートポンプ室外機1の前面側に面する前側面部7cと後面側に面する後側面部7fの両側面部の内面、外面の両面4箇所に吸音材9を貼り付けるようにしたものであるが、次にヒートポンプ空調室外機の暖房運転、ヒートポンプ給湯室外機等でヒートポンプ室外機1の運転効率を上げる必要があるような場合に実施する実施の形態2を説明する。
図4は、ヒートポンプ室外機のベースと圧縮機と脚板と第1防振マウントと中間ベースと断熱材と第2防振マウントを示すヒートポンプ室外機の要部拡大図である。
図4において、中間ベース7の前側面部7cの圧縮機2に面する内面7dと圧縮機2に面しない外面7eと後側面部7fの圧縮機2に面する内面7gと圧縮機2に面しない外面7hの両側面部の両面に繊維材、フォーム材のような断熱材10が貼り付けられている。
ヒートポンプ空調室外機の暖房運転、ヒートポンプ給湯室外機等では圧縮機2の熱が吐出管2e内の冷媒以外に外部に漏れると損失となり、ヒートポンプ室外機1の運転効率悪化の原因になるが、中間ベース7の前側面部7cの内面7dと外面7eと後側面部7fの内面7gと外面7hの両側面部の両面に断熱材10が貼り付けられているので、圧縮機2の熱が外部に漏れる事が抑制され、ヒートポンプ室外機1の運転効率が高くなる。中間ベース7の前側面部7cの内面7d、外面7eと後側面部7fの内面7g、外面7hのいずれかに断熱材10を貼り付けても十分な運転効率向上効果がある場合には、いずれかに貼り付けるだけでも構わない。
In the first embodiment described above, the sound absorbing material is provided on the inner surface of the both sides of the front side surface portion 7c facing the front side of the heat pump outdoor unit 1 of the intermediate base 7 and the rear side surface portion 7f facing the rear surface side, and on both sides of the outer surface. Next, the second embodiment is carried out when it is necessary to increase the operation efficiency of the heat pump outdoor unit 1 in the heating operation of the heat pump air conditioner outdoor unit, the heat pump hot water supply outdoor unit, or the like. Will be explained.
FIG. 4 is an enlarged view of the main part of the heat pump outdoor unit showing the base, compressor, leg plate, first vibration isolation mount, intermediate base, heat insulating material, and second vibration isolation mount of the heat pump outdoor unit.
In FIG. 4, the inner surface 7 d of the front side surface portion 7 c of the intermediate base 7 facing the compressor 2, the outer surface 7 e not facing the compressor 2, the inner surface 7 g facing the compressor 2 of the rear side surface portion 7 f, and the compressor 2 surface. A heat insulating material 10 such as a fiber material or a foam material is attached to both sides of the outer surface 7h.
In the heating operation of the heat pump air conditioner outdoor unit, the heat pump hot water supply outdoor unit, etc., heat is lost when the heat of the compressor 2 leaks outside the refrigerant in the discharge pipe 2e, causing the operating efficiency of the heat pump outdoor unit 1 to deteriorate. Since the heat insulating material 10 is affixed to both the inner surface 7d and the outer surface 7e of the front side surface portion 7c of the base 7, the inner surface 7g of the rear side surface portion 7f, and both side surface portions of the outer surface 7h, the heat of the compressor 2 leaks to the outside. This is suppressed, and the operating efficiency of the heat pump outdoor unit 1 is increased. If there is a sufficient operating efficiency improvement effect even if the heat insulating material 10 is pasted on either the inner surface 7d of the front side surface portion 7c of the intermediate base 7, the outer surface 7e and the inner surface 7g of the rear side surface portion 7f, or the outer surface 7h, You can just paste it.

以上の実施の形態1では、中間ベース7のヒートポンプ室外機1の前面側に面する前側面部7cと後面側に面する後側面部7fの両側面部の内面、外面の両面4箇所に吸音材9を貼り付けるようにしたものであるが、次に中間ベース7単体の振動が問題となり、中間ベース7を制振する必要があるような場合に実施する実施の形態3を説明する。
図5は、ヒートポンプ室外機のベースと圧縮機と脚板と第1防振マウントと中間ベースと制振材と第2防振マウントを示すヒートポンプ室外機の要部拡大図である。
図5において、中間ベース7の前側面部7cの圧縮機2に面する内面7dと圧縮機2に面しない外面7eと後側面部7fの圧縮機2に面する内面7gと圧縮機2に面しない外面7hの両側面部の両面に薄いゴム板のような制振材11が貼り付けられている。
中間ベース7の材料、形状、質量により決まる固有振動数が圧縮機2の回転数の整数倍と一致する場合等に中間ベース7の振動が顕著に増加する共振現象が発生し、ヒートポンプ室外機1の振動、騒音増加の原因となるが、中間ベース7の前側面部7cの内面7dと外面7eと後側面部7fの内面7gと外面7hの両側面部の両面に制振材11が貼り付けられているで、中間ベース7の振動増加を抑制でき、ヒートポンプ室外機1の振動、騒音増加を抑制できる。中間ベース7の前側面部7cの内面7d、外面7eと後側面部7fの内面7g、外面7hのいずれかに制振材11を貼り付けても十分な振動、騒音増加抑制効果がある場合には、いずれかに貼り付けるだけでも構わない。
In the first embodiment described above, the sound absorbing material is provided on the inner surface of the both sides of the front side surface portion 7c facing the front side of the heat pump outdoor unit 1 of the intermediate base 7 and the rear side surface portion 7f facing the rear surface side, and on both sides of the outer surface. Next, a third embodiment will be described which is performed when vibration of the intermediate base 7 alone becomes a problem and the intermediate base 7 needs to be damped.
FIG. 5 is an enlarged view of a main part of the heat pump outdoor unit showing the base, the compressor, the leg plate, the first vibration isolation mount, the intermediate base, the damping material, and the second vibration isolation mount of the heat pump outdoor unit.
In FIG. 5, the inner surface 7 d of the front side surface portion 7 c of the intermediate base 7 facing the compressor 2, the outer surface 7 e not facing the compressor 2, the inner surface 7 g facing the compressor 2 of the rear side surface portion 7 f, and the compressor 2 surface. A damping material 11 such as a thin rubber plate is attached to both sides of the outer surface 7h.
When the natural frequency determined by the material, shape, and mass of the intermediate base 7 coincides with an integral multiple of the rotational speed of the compressor 2, a resonance phenomenon in which the vibration of the intermediate base 7 significantly increases occurs, and the heat pump outdoor unit 1 The vibration damping material 11 is affixed to both the inner surface 7d and the outer surface 7e of the front side surface portion 7c, the inner surface 7g of the rear side surface portion 7f, and both side surfaces of the outer surface 7h. Therefore, the vibration increase of the intermediate base 7 can be suppressed, and the vibration and noise increase of the heat pump outdoor unit 1 can be suppressed. When the damping material 11 is pasted on any of the inner surface 7d, the outer surface 7e and the inner surface 7g of the rear side surface portion 7f, and the outer surface 7h of the intermediate base 7 when there is sufficient vibration and noise suppression effect. Can be just pasted on either.

以上の実施の形態1では、中間ベース7の側面部に吸音材9を貼り付けるようにしたものであるが、次に中間ベース7の質量を上げる必要があるような場合に実施する実施の形態4を説明する。
図6は、ヒートポンプ室外機のベースと圧縮機と脚板と第1防振マウントと中間ベースと機能部品と第2防振マウントを示すヒートポンプ室外機の要部拡大図である。
図6において、中間ベース7の前側面部7cの圧縮機2に面しない外面7eに冷媒回路を構成したり、制御したりする機能部品12が取り付けられている。
圧縮機2の並進振動や回転振動を低減する効果を上げる為には中間ベース7の質量を上げ、安定性を向上させる必要あるが、中間ベース7の前側面部7cの圧縮機2に面しない外面7eに機能部品12がネジ13により取り付けられているので、中間ベース7の相当質量が上がるので、圧縮機2の振動低減効果がさらに上がり、ヒートポンプ室外機1の振動、騒音がさらに低減できる。また、中間ベース7本体の質量を上げる事が抑制されるので、ヒートポンプ室外機1の質量、材料費の増加が抑制できる。また、共振現象による騒音を避けるため、中間ベース7の質量相当や形状相当を変化させて、固有振動数を変えることにも有効である。中間ベース7の前側面部7cの内面7d、後側面部7fの内面7g、外面7hに機能部品12が取り付け可能なら内面7d、内面7g、外面7hのいずれに取り付けても構わないし、中間ベース7の前側面部7cの内面7d、外面7eと後側面部7fの内面7g、外面7hのいずれかあるいはすべてに取り付けても構わない。また、質量を上げるためなので、中間ベース7の第1防振マウント設置面部7bに取り付けられていても構わない。また、中間ベース7に熱交換器のようなヒートポンプ室外機1の構造を構成したり、支持したりする目的の構造部品を取り付けても構わない。なお、質量増加のためならば、中間ベース7のどの位置についても構わないが、共振現象の場合は、取り付ける位置によって、固有振動数が変わるので、最も振動が小さくなる位置に、最も振動が小さくなる質量にて、部品を取り付ける。また、上記例は、機能部品12がネジ13によって取り付けられていたが、溶接や接着によって取り付けられていても構わない。
In the first embodiment described above, the sound absorbing material 9 is attached to the side surface portion of the intermediate base 7, but the embodiment is carried out when it is necessary to increase the mass of the intermediate base 7 next. 4 will be described.
FIG. 6 is an enlarged view of a main part of the heat pump outdoor unit showing the base, the compressor, the leg plate, the first vibration isolation mount, the intermediate base, the functional component, and the second vibration isolation mount of the heat pump outdoor unit.
In FIG. 6, a functional component 12 that constitutes or controls a refrigerant circuit is attached to an outer surface 7 e of the front side surface portion 7 c of the intermediate base 7 that does not face the compressor 2.
In order to increase the effect of reducing the translational vibration and rotational vibration of the compressor 2, it is necessary to increase the mass of the intermediate base 7 and improve the stability, but it does not face the compressor 2 on the front side surface portion 7 c of the intermediate base 7. Since the functional component 12 is attached to the outer surface 7e with the screw 13, the equivalent mass of the intermediate base 7 is increased, so that the vibration reduction effect of the compressor 2 is further improved, and the vibration and noise of the heat pump outdoor unit 1 can be further reduced. Moreover, since it is suppressed that the mass of the intermediate | middle base 7 main body is raised, the increase in the mass of the heat pump outdoor unit 1 and material cost can be suppressed. Further, in order to avoid noise due to resonance phenomenon, it is also effective to change the natural frequency by changing the mass equivalent or shape equivalent of the intermediate base 7. If the functional component 12 can be attached to the inner surface 7d of the front side surface portion 7c, the inner surface 7g of the rear side surface portion 7f, and the outer surface 7h of the intermediate base 7, it may be attached to any of the inner surface 7d, inner surface 7g, and outer surface 7h. It may be attached to any or all of the inner surface 7d and outer surface 7e of the front side surface portion 7c and the inner surface 7g and outer surface 7h of the rear side surface portion 7f. Moreover, in order to raise mass, you may attach to the 1st anti-vibration mount installation surface part 7b of the intermediate | middle base 7. Moreover, you may attach the structure component of the objective which comprises the structure of the heat pump outdoor unit 1 like a heat exchanger to the intermediate | middle base 7, or supports it. Note that any position of the intermediate base 7 may be used for increasing the mass. However, in the case of a resonance phenomenon, the natural frequency changes depending on the attachment position. Therefore, the vibration is the smallest at the position where the vibration is smallest. Attach the parts with the mass. Moreover, although the functional component 12 was attached with the screw 13 in the said example, you may attach by welding or adhesion | attachment.

以上の実施の形態1では、中間ベース7は圧縮機2下方の第1防振マウント設置面部7bから圧縮機2側方のヒートポンプ室外機1の前面側に面する前側面部7cと後面側に面する後側面部7fにつながる一体型構造をした、L字状(対2面でコ字状)に折り曲げられた形状となっているが、次に圧縮機2上部から放射される騒音を遮音または低減する事が必要な場合に実施する実施の形態5を説明する。
図7は、ヒートポンプ室外機の中間ベースを示す構造図である。図7(a)は、図7(c)のD−D面から中間ベース7を見た図であり、図7(b)は、図7(c)のA−A面から圧縮機2を見た図であり、図7(c)は、図7(b)のB−B面から圧縮機2を見た図であり、図7(c)は図7(a)のC−C面から中間ベース7を見た図である。
図7において、中間ベース7は圧縮機2下方の第1防振マウント設置面部7bから圧縮機2側方のヒートポンプ室外機1の前面側に面する前側面部7cにつながりL字状に折り曲げられ、さらに圧縮機2側方の前側面部7cから圧縮機2上方の前方上面部7kにつながりL字状に折り曲げられている。また、中間ベース7は圧縮機2下方の第1防振マウント設置面部7bから圧縮機2側方のヒートポンプ室外機1の後面側に面する後側面部7fにつながりL字状に折り曲げられ、さらに圧縮機2側方の後側面部7fから圧縮機2上方の後方上面部7pにつながりL字状に折り曲げられている。中間ベース7の前側面部7cの内面7d、外面7eと前方上面部7kの内面7m、外面7nと後側面部7fの内面7gと外面7hと後方上面部7pの内面7q、外面7rの両側面部と両上面部の両面8箇所に吸音材9が貼り付けられている。
圧縮機2からは側部以外にも上部からも騒音が放射され、ヒートポンプ室外機1の筐体1e、1f、1g、1h、1k等で遮音または低減されてヒートポンプ室外機1外に出るが、遮音が不十分だと、ヒートポンプ室外機1の騒音増加の原因となる。特に、圧縮機2の上方には、電気部品収納箱17があり、騒音の伝達や拡散は鈍いが、電気部品収納箱17の取付け方法や共振現象などによっては騒音が増幅される場合もある。しかし、中間ベース7は前方上面部7kと後方上面部7pが圧縮機2上方に設けられているので、圧縮機2上部から放射される騒音は前方上面部7kと後方上面部7pで遮音または低減されて前方上面部7kと後方上面部7pから外に出て、その騒音は電気部品収納箱17やヒートポンプ室外機1の筐体の上面部1g等でさらに遮音または低減されてヒートポンプ室外機1の外に出るので、騒音は大きく低減する。中間ベース7の前側面部7cの内面7d、外面7eと前方上面部7kの内面7m、外面7nと後側面部7fの内面7g、外面7hと後方上面部7pの内面7q、外面7rのいずれかに吸音材9を貼り付けるだけでも十分な騒音低減効果がある場合には、どちらかに貼り付けるだけでも構わないし、中間ベース7の前側面部7c、後側面部7f、前方上面部7k、後方上面部7pに吸音材9が貼り付けてもなくても十分な騒音低減効果がある場合には、吸音材9が貼り付けてなくても構わない。
また、圧縮機2上部に組み込まれた電気部品収納箱17を仕切板1d、筐体の右側面部1h等に固定せず、中間ベース7の前方上面部7k、後方上面部7pは、電気部品収納箱17にネジや勘合によって、つなぎ合わせても構わない。中間ベース7と電気部品収納箱17をつなぎ合わせることによって、中間ベース7の質量増加、振動低減、安定性向上という効果が得られる。また、中間ベース7の前側面部7c、後側面部7fの上方が電気部品収納箱17に押さえられるので、中間ベース7としての強度や剛性も向上し、前側面部7c、後側面部7fの上方に伝わる振動も抑制される。
In the first embodiment described above, the intermediate base 7 is provided on the front side surface portion 7c facing the front side of the heat pump outdoor unit 1 on the side of the compressor 2 from the first vibration isolation mount installation surface portion 7b below the compressor 2 and on the rear surface side. It has an integrated structure connected to the facing rear side surface portion 7f and is bent in an L shape (a U shape with respect to the two surfaces). Or Embodiment 5 implemented when it is necessary to reduce will be described.
FIG. 7 is a structural diagram showing an intermediate base of the heat pump outdoor unit. 7A is a view of the intermediate base 7 seen from the DD plane of FIG. 7C, and FIG. 7B shows the compressor 2 from the AA plane of FIG. 7C. FIG. 7C is a view of the compressor 2 seen from the BB plane of FIG. 7B, and FIG. 7C is the CC plane of FIG. 7A. It is the figure which looked at the intermediate base 7 from.
In FIG. 7, the intermediate base 7 is connected to the front side surface portion 7 c facing the front side of the heat pump outdoor unit 1 on the side of the compressor 2 from the first vibration isolation mount installation surface portion 7 b below the compressor 2 and is bent in an L shape. Further, the front side surface portion 7c on the side of the compressor 2 is connected to the front upper surface portion 7k above the compressor 2 and is bent in an L shape. Further, the intermediate base 7 is connected to the rear side surface portion 7f facing the rear surface side of the heat pump outdoor unit 1 on the side of the compressor 2 from the first vibration isolation mount installation surface portion 7b below the compressor 2, and is bent in an L shape. The rear side surface portion 7f on the side of the compressor 2 is connected to the rear upper surface portion 7p above the compressor 2 and is bent in an L shape. An inner surface 7d of the front side surface portion 7c of the intermediate base 7, an inner surface 7m of the outer surface 7e and the front upper surface portion 7k, an inner surface 7g of the outer surface 7n and the rear side surface portion 7f, an inner surface 7q of the outer surface 7h and the rear upper surface portion 7p, and both side surfaces of the outer surface 7r. The sound-absorbing material 9 is affixed at 8 locations on both sides of the upper surface.
Noise is radiated from the upper part as well as the side part from the compressor 2, and the sound is insulated or reduced by the housing 1e, 1f, 1g, 1h, 1k, etc. of the heat pump outdoor unit 1 and goes out of the heat pump outdoor unit 1, Insufficient sound insulation will cause an increase in noise in the heat pump outdoor unit 1. In particular, there is an electrical component storage box 17 above the compressor 2, and noise transmission and diffusion are slow, but noise may be amplified depending on the mounting method of the electrical component storage box 17, the resonance phenomenon, and the like. However, since the front upper surface portion 7k and the rear upper surface portion 7p of the intermediate base 7 are provided above the compressor 2, noise radiated from the upper portion of the compressor 2 is sound-insulated or reduced by the front upper surface portion 7k and the rear upper surface portion 7p. Then, the noise is emitted from the front upper surface portion 7k and the rear upper surface portion 7p, and the noise is further insulated or reduced by the electric component storage box 17 or the upper surface portion 1g of the housing of the heat pump outdoor unit 1 to reduce the noise of the heat pump outdoor unit 1. Since going out, the noise is greatly reduced. Any of the inner surface 7d of the front side surface portion 7c of the intermediate base 7, the inner surface 7m of the outer surface 7e and the front upper surface portion 7k, the inner surface 7g of the outer surface 7n and the rear side surface portion 7f, the inner surface 7q of the outer surface 7h and the rear upper surface portion 7p, and the outer surface 7r. If there is a sufficient noise reduction effect just by affixing the sound absorbing material 9, the front side surface part 7c, the rear side surface part 7f, the front upper surface part 7k, the rear side of the intermediate base 7 may be used. If there is a sufficient noise reduction effect even if the sound absorbing material 9 is not attached to the upper surface portion 7p, the sound absorbing material 9 may not be attached.
In addition, the electric component storage box 17 incorporated in the upper part of the compressor 2 is not fixed to the partition plate 1d, the right side surface portion 1h of the housing, and the front upper surface portion 7k and the rear upper surface portion 7p of the intermediate base 7 The box 17 may be connected by screws or fittings. By connecting the intermediate base 7 and the electrical component storage box 17, effects of increasing the mass of the intermediate base 7, reducing vibrations, and improving stability can be obtained. Further, since the upper side of the front side surface portion 7c and the rear side surface portion 7f of the intermediate base 7 is pressed by the electrical component storage box 17, the strength and rigidity as the intermediate base 7 are improved, and the front side surface portion 7c and the rear side surface portion 7f are improved. Vibrations transmitted upward are also suppressed.

また、本発明の実施例1では中間ベース7に吸音材9を貼り付けられた例を、実施例2では中間ベース7に断熱材10を貼り付けられた例を、実施例3では中間ベース7に制振材11を貼り付けられた例を説明したが、吸音材9、断熱材10、制振材11は混在、または組み合わせて貼り付けられていても構わない。例えば、中間ベース7の前側面部7cの内面7dと後側面部7fの内面7gに断熱材10を貼り付け、前側面部7cの外面7eと後側面部7fの外面7hに吸音材9を貼り付けるというように、貼り付ける材料を組み合わせて貼り付けても構わない。また、中間ベース7の同じ面に吸音材9と制振材11を混在して貼り付けても構わない。さらに、ヒートポンプ室外機の筐体の前面部1e、後面部1f、上面部1g、右側面部1hの内側や仕切板1dの機械室1b側を利用して、吸音材、断熱材、制振材等の材料を設けたりしても構わない。また、中間ベース7に、吸音材9、断熱材10、制振材11を、それぞれ貼り付けたり、混在して貼り付けたり、組み合わせて貼り付けられたものに、実施例4で示したヒートポンプ室外機の構造部品または機能部品を取り付けても構わない。また、実施例5に示された前方上面部7k、後方上面部7pを持った中間ベース7の場合も同様に、上面部に吸音材9、断熱材10、制振材11を混在して、または組み合わせて貼り付けても構わなく、上面部にヒートポンプ室外機の構造部品または機能部品を取り付けても構わない。
以上により、中間ベース7を設けたヒートポンプ室外機1は圧縮機2が放射する騒音と振動を低減するだけではなく、ヒートポンプ室外機1の筐体や冷媒配管や中間ベース自身の固有振動数などと共振して起きる振動や騒音を抑制し、断熱効果による能力の向上が図れるなど、相乗効果を発揮することも可能である。また、住宅の外壁20を背に設置されることの多いヒートポンプ室外機1では、住宅の外壁20に伝わる振動や騒音、住宅の外壁20と共振現象による振動や騒音、住宅の外壁20に反射して増幅される前面方向の騒音などに、効果を発揮する。特にCO2冷媒を使用したヒートポンプ給湯室外機は、圧縮機が発生する振動と騒音は大きく、深夜電力利用のための深夜の騒音低減には大きく貢献する。
In the first embodiment of the present invention, the sound absorbing material 9 is attached to the intermediate base 7, the heat insulating material 10 is attached to the intermediate base 7 in the second embodiment, and the intermediate base 7 is used in the third embodiment. However, the sound absorbing material 9, the heat insulating material 10, and the vibration damping material 11 may be mixed or bonded together. For example, the heat insulating material 10 is attached to the inner surface 7d of the front side surface portion 7c and the inner surface 7g of the rear side surface portion 7f of the intermediate base 7, and the sound absorbing material 9 is attached to the outer surface 7e of the front side surface portion 7c and the outer surface 7h of the rear side surface portion 7f. A combination of the materials to be attached may be applied. Further, the sound absorbing material 9 and the vibration damping material 11 may be mixed and pasted on the same surface of the intermediate base 7. Furthermore, a sound absorbing material, a heat insulating material, a vibration damping material, etc. are utilized by using the inside of the front surface portion 1e, the rear surface portion 1f, the upper surface portion 1g, the right surface portion 1h of the housing of the heat pump outdoor unit and the machine chamber 1b side of the partition plate 1d. The material may be provided. Further, the sound absorbing material 9, the heat insulating material 10, and the vibration damping material 11 are attached to the intermediate base 7 respectively, mixedly attached, or combined and attached to each other. You may attach the structural part or functional part of the machine. Similarly, in the case of the intermediate base 7 having the front upper surface portion 7k and the rear upper surface portion 7p shown in Example 5, the sound absorbing material 9, the heat insulating material 10, and the vibration damping material 11 are mixed on the upper surface portion, Or you may stick together and you may attach the structural component or functional component of a heat pump outdoor unit to an upper surface part.
As described above, the heat pump outdoor unit 1 provided with the intermediate base 7 not only reduces the noise and vibration radiated by the compressor 2, but also the natural frequency of the casing, the refrigerant piping, the intermediate base itself of the heat pump outdoor unit 1, etc. It is also possible to exhibit synergistic effects such as suppressing vibrations and noise caused by resonance and improving the capacity by the heat insulation effect. Further, in the heat pump outdoor unit 1 that is often installed on the back of the outer wall 20 of the house, vibration and noise transmitted to the outer wall 20 of the house, vibration and noise due to resonance phenomenon with the outer wall 20 of the house, and reflection on the outer wall 20 of the house. It is effective for the noise in the front direction that is amplified. In particular, a heat pump hot water supply outdoor unit using a CO2 refrigerant has a large vibration and noise generated by the compressor, and greatly contributes to the reduction of midnight noise for the use of midnight power.

以上の実施の形態1では、中間ベース7の第1防振マウント設置面部7bと前側面部7c、後側面部7fを一体型構造としたものであるが、次に中間ベース7の質量を上げる為、遮音効果を上げる為、剛性を上げる為等、厚さを厚くして一体型曲げ成形が困難、あるいは中間ベース7が複雑な形状を要して一体型曲成型が困難な場合に実施する実施の形態6を説明する。
図8は、ヒートポンプ室外機の中間ベースを示す構造図である。
図8において、中間ベース7は第1防振マウント設置面部7bと前側面部7c、後側面部7fで分割型となっており、第1防振マウント設置面部7bと前側面部7c、後側面部7fを溶接により固定されている。
圧縮機2の振動低減効果を上げる為には中間ベース7の板厚を厚くして中間ベース7の質量を上げる必要あり、遮音効果を上げる為にも中間ベース7の板厚を厚くする必要があるが、中間ベース7は板厚を厚くすると曲げ成形が困難となるが、中間ベース7は第1防振マウント設置面部7b、前側面部7c、後側面部7fで分割型構造であり、両者溶接により固定されているので、中間ベース7は成形可能であり、この中間ベース7を適用すると、ヒートポンプ室外機1の振動、騒音は大きく低減できる。また、中間ベース7が分割型構造であることにより、ヒートポンプ室外機1に中間ベース7の第1防振マウント設置面部7bと圧縮機2を設置後、前側面部7cと後側面部7fを取り付けることもできるため作業性も良く、特に質量が増した中間ベース7を取り付ける際には、効果が高い。また、第1防振マウント設置面部7b、前側面部7c、後側面部7fは複数枚に分割されていても良く、組み立て時に、第1防振マウント設置面部7b、前側面部7c、後側面部7fとして構成されることでも構わない。例えば、ヒートポンプ室外機1への圧縮機2取り付けの作業性を改善するために、ヒートポンプ室外機1の前面側に配置される前側面部7cが2分割されていて、組み立て時に2つの分割部品と第1防振マウント設置面部7bとを溶接してつなぎ合わせても構わない。また、溶接ではなく、勘合やネジによってつなぎ合わせても構わない。
以上により、容易にヒートポンプ室外機に圧縮機とともに容易に組み込むことができる中間ベースと備えた、静粛面で優れたヒートポンプ室外機を提供できる。
In the first embodiment described above, the first anti-vibration mount installation surface portion 7b, the front side surface portion 7c, and the rear side surface portion 7f of the intermediate base 7 have an integrated structure. Next, the mass of the intermediate base 7 is increased. Therefore, increase the thickness to increase the sound insulation effect, increase rigidity, etc., and make it difficult to perform integral bending molding, or if the intermediate base 7 requires a complex shape and integral bending molding is difficult A sixth embodiment will be described.
FIG. 8 is a structural diagram showing an intermediate base of the heat pump outdoor unit.
In FIG. 8, the intermediate base 7 is divided into a first anti-vibration mount installation surface portion 7b, a front side surface portion 7c, and a rear side surface portion 7f. The first anti-vibration mount installation surface portion 7b, the front side surface portion 7c, and the rear side surface The part 7f is fixed by welding.
In order to increase the vibration reduction effect of the compressor 2, it is necessary to increase the thickness of the intermediate base 7 by increasing the thickness of the intermediate base 7, and it is necessary to increase the thickness of the intermediate base 7 in order to increase the sound insulation effect. Although the intermediate base 7 is difficult to bend when the plate thickness is increased, the intermediate base 7 has a first vibration isolating mount installation surface portion 7b, a front side surface portion 7c, and a rear side surface portion 7f. Since it is fixed by welding, the intermediate base 7 can be molded. When this intermediate base 7 is applied, vibration and noise of the heat pump outdoor unit 1 can be greatly reduced. Further, since the intermediate base 7 has a split structure, the front side surface portion 7c and the rear side surface portion 7f are attached after the first vibration isolation mount installation surface portion 7b and the compressor 2 of the intermediate base 7 are installed in the heat pump outdoor unit 1. Therefore, workability is good, and particularly when the intermediate base 7 having an increased mass is attached, the effect is high. Further, the first vibration isolation mount installation surface portion 7b, the front side surface portion 7c, and the rear side surface portion 7f may be divided into a plurality of pieces, and at the time of assembly, the first vibration isolation mount installation surface portion 7b, the front side surface portion 7c, and the rear side surface portion. It may be configured as part 7f. For example, in order to improve the workability of attaching the compressor 2 to the heat pump outdoor unit 1, the front side surface portion 7c arranged on the front side of the heat pump outdoor unit 1 is divided into two parts, You may weld and connect the 1st anti-vibration mount installation surface part 7b. Moreover, you may connect not by welding but by fitting or a screw | thread.
As described above, it is possible to provide a heat pump outdoor unit that is excellent in quietness and includes an intermediate base that can be easily incorporated into a heat pump outdoor unit together with a compressor.

1 ヒートポンプ室外機本体
1a ベース
1b 機械室
1c 送風機室
1d 仕切板
1e 筐体の前面部
1f 筐体の後面部
1g 筐体の上面部
1h 筐体の右側面部
1k 筐体の左側面部
1p サービスパネル
2 圧縮機
2a 本体
2b 脚板
2c 第1防振マウント取り付け穴
2d 吸入管
2e 吐出管
2f 吸入マフラ
6 第1防振マウント
7 中間ベース
7a 第2防振マウント取り付け穴
7b 第1防振マウント設置面部
7c 中間ベースの前側面部
7d 中間ベースの前側面部の内面
7e 中間ベースの前側面部の外面
7f 中間ベースの後側面部
7g 中間ベースの後側面部の内面
7h 中間ベースの後側面部の外面
7k 中間ベースの前方上面部
7m 中間ベースの前方上面部の内面
7n 中間ベースの前方上面部の外面
7p 中間ベースの後方上面部
7q 中間ベースの後方上面部の内面
7r 中間ベースの後方上面部の外面
8 第2防振マウント
9 吸音材
10 断熱材
11 制振材
12 機能部品
13 ネジ
14 送風機
15 空気冷媒熱交換器
16 水冷媒熱交換器
17 電気部品収納箱
20 住宅外壁
DESCRIPTION OF SYMBOLS 1 Heat pump outdoor unit main body 1a Base 1b Machine room 1c Blower room 1d Partition plate 1e Front part of housing 1f Rear surface part of housing 1g Upper surface part of housing 1h Right side part of housing 1k Left side part of housing 1p Service panel 2 Compressor 2a Body 2b Leg plate 2c First vibration isolation mount mounting hole 2d Suction pipe 2e Discharge pipe 2f Suction muffler 6 First vibration isolation mount 7 Intermediate base 7a Second vibration isolation mount mounting hole 7b First vibration isolation mount installation surface 7c Intermediate Front side surface portion of base 7d Inner surface of front side surface portion of intermediate base 7e Outer surface of front side surface portion of intermediate base 7f Rear side surface portion of intermediate base 7g Inner surface of rear side surface portion of intermediate base 7h Outer surface of rear side surface portion of intermediate base 7k Intermediate Front upper surface of base 7m Inner surface of upper surface of intermediate base 7n Outer surface of upper surface of intermediate base 7p Upper rear of intermediate base Part 7q inner surface of rear upper surface part of intermediate base 7r outer surface of rear upper surface part of intermediate base 8 second vibration isolating mount 9 sound absorbing material 10 heat insulating material 11 vibration damping material 12 functional component 13 screw 14 blower 15 air refrigerant heat exchanger 16 water Refrigerant heat exchanger 17 Electrical component storage box 20 Exterior wall

Claims (9)

筐体の後面から吸い込み前面に吐き出す送風機と封入した冷媒が循環する冷媒回路が設けられた室外機と、前記室外機の筐体内に設けられ前記冷媒回路に接続された圧縮機と、前記圧縮機の脚板に取り付けられ前記圧縮機を第1防振マウントを介して支持する中間ベースの第1防振マウント設置面部と、前記圧縮機と前記室外機の筐体前面部との間に併設する前記第1防振マウント設置面部とつながった前記中間ベースの前側面部と、前記圧縮機と前記室外機の筐体後面部との間に併設する前記圧縮機設置面とつながった前記中間ベースの後側面部と、前記中間ベースの前記第1防振マウント設置面部と前記第1防振マウント設置面部下方の室外機ベースとの間に設けられ前記室外機ベース上で前記第1防振マウント設置面部を支持する第2防振マウントと、を備え、前記中間ベースの開放された側面部または上面部から前記中間ベースの外へ前記圧縮機に接続された冷媒配管を取り出すようにしたことを特徴とするヒートポンプ室外機。 A blower that sucks in from the rear surface of the housing and discharges it to the front surface, an outdoor unit provided with a refrigerant circuit through which the enclosed refrigerant circulates, a compressor provided in the housing of the outdoor unit and connected to the refrigerant circuit, and the compressor The first vibration-proof mount installation surface portion of the intermediate base that is attached to the leg plate and supports the compressor via the first vibration-proof mount and the compressor and the front surface of the casing of the outdoor unit are provided side by side. After the intermediate base connected to the compressor installation surface provided between the front side surface portion of the intermediate base connected to the first vibration isolation mount installation surface portion and the rear surface portion of the compressor and the casing of the outdoor unit A first anti-vibration mount installation surface portion provided between a side surface portion, the first anti-vibration mount installation surface portion of the intermediate base, and an outdoor unit base below the first anti-vibration mount installation surface portion; Second to support Vibration and mount, comprising a heat pump outdoor unit, characterized in that they were taken out of the intermediate base opened side portion or a refrigerant pipe connected to the compressor to the outside of the intermediate base from the top surface. 前記中間ベースの前記前側面部と前記後側面部の上端が前記圧縮機の高さより上方まであることを特徴とする請求項1記載のヒートポンプ室外機。 The heat pump outdoor unit according to claim 1, wherein upper ends of the front side surface portion and the rear side surface portion of the intermediate base are located above a height of the compressor. 前記中間ベースが前記前側面部から前記圧縮機の上方を覆うようにつながった前方上面部および前記後側面部から前記圧縮機の上方を覆うようにつながった後方上面部の少なくともいずれか一方を備えたことを特徴とする請求項1記載のヒートポンプ室外機。 The intermediate base includes at least one of a front upper surface portion connected so as to cover the upper side of the compressor from the front side surface portion and a rear upper surface portion connected so as to cover the upper side of the compressor from the rear side surface portion. The heat pump outdoor unit according to claim 1, wherein: 前記中間ベースの前記前側面部及び前記後側面部の前記圧縮機に面する内面と前記圧縮機に面しない外面とのどちらか、あるいは両面に吸音効果を有する材料または断熱効果を有する材料または制振効果を有する材料が貼り付けられたことを特徴とする請求項1乃至3のいずれかに記載のヒートポンプ室外機。 A material having a sound absorbing effect or a heat insulating effect or a material having a heat insulation effect on either the inner surface facing the compressor or the outer surface not facing the compressor of the front side surface and the rear side surface portion of the intermediate base. The heat pump outdoor unit according to any one of claims 1 to 3, wherein a material having a vibration effect is attached. 前記中間ベースに前記冷媒回路を構成する若しくは前記冷媒回路を支持する構造部品、または前記室外機を制御する機能部品が取り付けられたことを特徴とする請求項1乃至4のいずれかに記載のヒートポンプ室外機。 The heat pump according to any one of claims 1 to 4, wherein a structural component that configures or supports the refrigerant circuit or a functional component that controls the outdoor unit is attached to the intermediate base. Outdoor unit. 前記中間ベースの前記第1防振マウント設置面部と前記前側面部と前記後側面部が一体型構造であることを特徴とする請求項1乃至5のいずれかに記載のヒートポンプ室外機。 The heat pump outdoor unit according to any one of claims 1 to 5, wherein the first anti-vibration mount installation surface portion, the front side surface portion, and the rear side surface portion of the intermediate base have an integral structure. 前記中間ベースの前記第1防振マウント設置面部と前記前側面部と前記後側面部が分割型構造であることを特徴とする請求項1乃至5のいずれかに記載のヒートポンプ室外機。 The heat pump outdoor unit according to any one of claims 1 to 5, wherein the first anti-vibration mount installation surface portion, the front side surface portion, and the rear side surface portion of the intermediate base have a split structure. 請求項1乃至7のいずれかに記載のヒートポンプ室外機を室内を空調する室内機と接続し、前記圧縮機が圧縮した冷媒を前記室外機に設けられた空気熱交換器と膨張弁とを介して前記室内機に供給する冷媒回路を備えたことを特徴とする空調機。 The heat pump outdoor unit according to any one of claims 1 to 7 is connected to an indoor unit that air-conditions a room, and the refrigerant compressed by the compressor is connected to an air heat exchanger and an expansion valve provided in the outdoor unit. And an air conditioner provided with a refrigerant circuit for supplying the indoor unit. 請求項1乃至7のいずれかに記載のヒートポンプ室外機を外部の貯湯装置と接続し、前記室外機に設けられた水冷媒熱交換器が加熱する湯を前記貯湯装置に設けられた貯湯タンクに供給する給湯回路を備えたことを特徴とする給湯機。 The heat pump outdoor unit according to any one of claims 1 to 7 is connected to an external hot water storage device, and hot water heated by a water-refrigerant heat exchanger provided in the outdoor unit is supplied to a hot water storage tank provided in the hot water storage device. A hot water supply machine comprising a hot water supply circuit for supply.
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JPWO2021001925A1 (en) * 2019-07-02 2021-11-25 三菱電機株式会社 Outdoor unit of air conditioner
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US11971192B2 (en) * 2019-07-10 2024-04-30 Robert Bosch Llc Environmental control unit including noise reduction features
WO2022190207A1 (en) * 2021-03-09 2022-09-15 三菱電機株式会社 Damping material and outdoor unit for air conditioner using same
JP7462829B2 (en) 2021-03-09 2024-04-05 三菱電機株式会社 Vibration-damping material and outdoor unit for air conditioner using same
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