JP5630427B2

JP5630427B2 - Heat pump water heater outdoor unit

Info

Publication number: JP5630427B2
Application number: JP2011257266A
Authority: JP
Inventors: 周二茂木
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2011-11-25
Filing date: 2011-11-25
Publication date: 2014-11-26
Anticipated expiration: 2031-11-25
Also published as: JP2013113450A

Description

本発明は、ヒートポンプ給湯室外機に関する。 The present invention relates to a heat pump hot water supply outdoor unit.

空気の熱を吸収して湯を沸かすことのできる、エネルギー効率に優れたヒートポンプ式給湯システムが広く用いられている。ヒートポンプ式給湯システムを構成するヒートポンプ給湯室外機には、空気の熱を冷媒に吸熱させる空気冷媒熱交換器、この空気冷媒熱交換器に送風する送風機、冷媒を圧縮する圧縮機、冷媒の熱によって水を加熱する水冷媒熱交換器などが搭載されている。 An energy efficient heat pump type hot water supply system that can boil hot water by absorbing the heat of air is widely used. The heat pump hot water supply outdoor unit constituting the heat pump hot water supply system includes an air refrigerant heat exchanger that absorbs heat of air into the refrigerant, a blower that blows air to the air refrigerant heat exchanger, a compressor that compresses the refrigerant, and the heat of the refrigerant. A water refrigerant heat exchanger that heats water is installed.

特許文献１には、両端部を除く領域の外周に複数条の山谷部の谷部を各条ごとに連続して螺旋状に形成した熱交換用水配管と、この熱配管用水配管の山谷部の谷部に沿って巻き付けられた冷媒配管とを備えた、ヒートポンプ給湯室外機の水冷媒熱交換器が開示されている。この水冷媒熱交換器の熱交換用水配管の両端部には、山谷部の無い平滑部が形成されている。 Patent Document 1 includes a heat exchange water pipe in which a plurality of valleys of valleys are continuously formed in a spiral shape on the outer periphery of a region excluding both ends, and a mountain valley part of the heat pipe water pipe. A water-refrigerant heat exchanger for a heat pump hot-water supply outdoor unit that includes a refrigerant pipe wound around a valley is disclosed. At both ends of the heat exchange water pipe of this water-refrigerant heat exchanger, smooth portions having no peaks and valleys are formed.

特開２００６−３３６８８５号公報JP 2006-336885 A

ヒートポンプ給湯室外機には、重量が大きく横に長い形状の水冷媒熱交換器が、発泡材等の収納容器に収納されて、ベース上面に設置されている。また、圧縮機が、ゴム部材あるいは金属スプリング部材等の防振マウントを介してベース上面に設置されている。圧縮機と水冷媒熱交換器とは、冷媒配管により接続され、圧縮機と水冷媒熱交換器とがベース上面に横に並べて設置されている。また、水冷媒熱交換器と筐体側部とは、通常入水用と出湯用との２本の接続水配管により接続されている。この接続水配管には、円管（平滑管）が使用されている。 In the heat pump hot water supply outdoor unit, a water refrigerant heat exchanger having a large weight and a long side shape is stored in a storage container such as a foam material and installed on the upper surface of the base. The compressor is installed on the upper surface of the base via a vibration-proof mount such as a rubber member or a metal spring member. The compressor and the water refrigerant heat exchanger are connected by refrigerant piping, and the compressor and the water refrigerant heat exchanger are installed side by side on the upper surface of the base. In addition, the water refrigerant heat exchanger and the casing side are connected by two connection water pipes for normal incoming and outgoing hot water. A circular pipe (smooth pipe) is used for this connection water pipe.

ヒートポンプ給湯室外機の運転中に、圧縮機の振動が冷媒配管を介して水冷媒熱交換器に伝達し、この水冷媒熱交換器の振動は、接続水配管を介して筐体側部まで伝達し、筐体各部に伝達する。これにより、ヒートポンプ給湯室外機の筐体各部の振動が増加したり、筐体各部から放射される騒音や低周波音が増加する等の問題がある。このような振動、騒音、低周波音の増加を抑制するためには、筐体各部への防振部材の貼り付け、筐体各部の板厚増加、筐体各部への補強部材取付け等が必要となり、コストが著しく増加するという問題がある。 During operation of the heat pump water heater outdoor unit, the vibration of the compressor is transmitted to the water refrigerant heat exchanger through the refrigerant pipe, and the vibration of the water refrigerant heat exchanger is transmitted to the side of the housing through the connection water pipe. , Transmitted to each part of the housing. Thereby, there are problems such as an increase in vibration of each part of the housing of the heat pump hot water supply outdoor unit and an increase in noise and low frequency sound radiated from each part of the housing. In order to suppress such increases in vibration, noise, and low frequency sound, it is necessary to attach anti-vibration members to each part of the chassis, increase the thickness of each part of the chassis, and attach reinforcing members to each part of the chassis. Therefore, there is a problem that the cost is remarkably increased.

本発明は、上述のような課題を解決するためになされたもので、ヒートポンプ給湯室外機のコストの増加を抑制しながら、ヒートポンプ給湯室外機の筐体各部の振動を抑制し、筐体各部から放射される騒音や低周波音を抑制することのできるヒートポンプ給湯室外機を提供することを目的とする。 The present invention was made in order to solve the above-described problems. While suppressing an increase in the cost of the heat pump hot water supply outdoor unit, the vibration of each case of the heat pump hot water supply outdoor unit is suppressed. It aims at providing the heat pump hot water supply outdoor unit which can suppress the noise and low frequency sound which are radiated | emitted.

本発明に係るヒートポンプ給湯室外機は、筐体と、筐体内に設けられ、封入した冷媒が循環する冷媒回路と、筐体内に設けられ、筐体外から供給される水と冷媒との熱交換を行う水冷媒熱交換器と、一端が水冷媒熱交換器に接続され、他端が筐体に対して固定され、筐体外から供給される水あるいは筐体外へ供給される湯が通る接続水配管と、を備え、接続水配管の少なくとも一部は、管壁に螺旋状または環状の山谷部が形成された山谷付き管で構成されており、山谷付き管は、その外周に１条または複数条の螺旋状の谷部を有し、水冷媒熱交換器は、その水の流路が山谷付き管で構成されており、接続水配管を構成する山谷付き管は、水冷媒熱交換器を構成する山谷付き管から連続して設けられているものである。
A heat pump hot water supply outdoor unit according to the present invention is provided with a casing, a refrigerant circuit in which the enclosed refrigerant circulates, and heat exchange between water and the refrigerant that is provided in the casing and is supplied from outside the casing. A water refrigerant heat exchanger to be performed and a connection water pipe having one end connected to the water refrigerant heat exchanger and the other end fixed to the casing, through which water supplied from outside the casing or hot water supplied outside the casing passes When provided with, at least part of the connecting water pipe, is composed of peaks and troughs with pipe peaks and valleys of the helical or circular is formed on the tube wall, the peaks and troughs with pipe, Article 1 or more conditions on its outer circumference The water-refrigerant heat exchanger has a water-flow channel configured with a tube with a valley and the tube with a valley that forms the connection water pipe constitutes a water-refrigerant heat exchanger. It is provided continuously from a pipe with a valley .

本発明によれば、水冷媒熱交換器と筐体を接続する接続水配管の少なくとも一部を構成する山谷付き管にて振動が低減するので、筐体への振動の伝達を抑制することができる。このため、ヒートポンプ給湯室外機の筐体各部から放射される騒音、低周波音を確実に抑制することが可能となる。また、振動、騒音、低周波音の増加を抑制するための筐体各部への防振部材の貼り付け、筐体各部の板厚増加、筐体各部への補強部材取付け等が不要または削減可能となるので、コストの増加を抑制しながら振動、騒音、低周波音の面で優れたヒートポンプ給湯室外機を得ることが可能となる。 According to the present invention, vibration is reduced in the pipe with a valley that forms at least a part of the connecting water pipe that connects the water-refrigerant heat exchanger and the housing, so that transmission of vibration to the housing can be suppressed. it can. For this reason, it becomes possible to suppress reliably the noise and low frequency sound radiated | emitted from the housing | casing each part of a heat pump hot-water supply outdoor unit. It is also possible to eliminate or reduce the need to attach anti-vibration members to each part of the chassis, increase the thickness of each part of the chassis, and attach reinforcing members to each part of the chassis to suppress the increase in vibration, noise, and low-frequency sound. Therefore, it is possible to obtain a heat pump hot water supply outdoor unit that is excellent in terms of vibration, noise, and low frequency sound while suppressing an increase in cost.

本発明の実施の形態１のヒートポンプ給湯室外機の全体の分解斜視図である。It is a disassembled perspective view of the whole heat pump hot-water supply outdoor unit of Embodiment 1 of this invention. 本発明の実施の形態１のヒートポンプ給湯室外機のベースに対する水冷媒熱交換器の設置状態を示す分解斜視図である。It is a disassembled perspective view which shows the installation state of the water refrigerant | coolant heat exchanger with respect to the base of the heat pump hot-water supply outdoor unit of Embodiment 1 of this invention. 本発明の実施の形態１のヒートポンプ給湯室外機の内部構造を示す正面図および要部拡大図である。It is the front view and principal part enlarged view which show the internal structure of the heat pump hot-water supply outdoor unit of Embodiment 1 of this invention. 本発明の実施の形態２のヒートポンプ給湯室外機の要部拡大図である。It is a principal part enlarged view of the heat pump hot-water supply outdoor unit of Embodiment 2 of this invention. 本発明の実施の形態３のヒートポンプ給湯室外機の要部拡大図である。It is a principal part enlarged view of the heat pump hot-water supply outdoor unit of Embodiment 3 of this invention.

以下、図面を参照して本発明の実施の形態について説明する。なお、各図において共通する要素には、同一の符号を付して、重複する説明を省略する。 Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the element which is common in each figure, and the overlapping description is abbreviate | omitted.

実施の形態１．
図１は、本発明の実施の形態１のヒートポンプ給湯室外機の全体の分解斜視図である。なお、図１中では、左下が前方、右上が後方である。図２は、本発明の実施の形態１のヒートポンプ給湯室外機のベースに対する水冷媒熱交換器の設置状態を示す分解斜視図である。図３は、本発明の実施の形態１のヒートポンプ給湯室外機の内部構造を示す正面図および要部拡大図である。 Embodiment 1 FIG.
1 is an exploded perspective view of the entire heat pump hot water supply outdoor unit according to Embodiment 1 of the present invention. In FIG. 1, the lower left is the front and the upper right is the rear. FIG. 2 is an exploded perspective view showing an installation state of the water refrigerant heat exchanger with respect to the base of the heat pump hot water supply outdoor unit according to Embodiment 1 of the present invention. FIG. 3 is a front view and an enlarged view of a main part showing the internal structure of the heat pump hot water supply outdoor unit according to Embodiment 1 of the present invention.

まず、本実施形態のヒートポンプ給湯室外機の全体構成について説明する。図１に示すように、本実施形態のヒートポンプ給湯室外機１は、その構成機器を収容する筐体を有している。この筐体は、底部を構成するベース１７と、前面および左側面を覆う前面左側面部１８ａと、後面および右側面を覆う後面右側面部１８ｂと、上面を覆う上面部１８ｃとを組み合わせて構成されている。上記筐体は、主に板金材等で構成される。ヒートポンプ給湯室外機１は、空気冷媒熱交換器７の設置部以外は、上記筐体で覆われている。上記筐体の内部には、仕切板１６が設けられ、この仕切板１６により、前面から見て右側の機械室１４と、左側の送風機室１５とに筐体内部が区画されている。 First, the whole structure of the heat pump hot water supply outdoor unit of this embodiment is demonstrated. As shown in FIG. 1, the heat pump hot water supply outdoor unit 1 of the present embodiment has a housing that accommodates its constituent devices. This housing is configured by combining a base 17 constituting the bottom, a front left side 18a covering the front and left sides, a rear right side 18b covering the rear and right sides, and an upper surface 18c covering the top. Yes. The housing is mainly composed of a sheet metal material or the like. The heat pump hot water supply outdoor unit 1 is covered with the casing except for the installation portion of the air refrigerant heat exchanger 7. A partition plate 16 is provided inside the housing, and the partition plate 16 partitions the interior of the housing into a right-side machine chamber 14 and a left-side fan chamber 15 as viewed from the front.

図示を省略しているものもあるが、機械室１４内には、冷媒を圧縮するための圧縮機２、冷媒を減圧するための膨張弁、これらを接続する吸入管４や吐出管５等の冷媒配管、その他の冷媒回路部品が組み込まれている。送風機室１５内には、送風機６と、この送風機６に隣接する空気冷媒熱交換器７とが組み込まれている。送風機室１５内は、風路確保のため大きな空間を有している。 Although not shown in the drawings, the machine room 14 includes a compressor 2 for compressing the refrigerant, an expansion valve for depressurizing the refrigerant, and a suction pipe 4 and a discharge pipe 5 that connect them. Refrigerant piping and other refrigerant circuit components are incorporated. A blower 6 and an air refrigerant heat exchanger 7 adjacent to the blower 6 are incorporated in the blower chamber 15. The blower chamber 15 has a large space for securing an air passage.

圧縮機２は、吐出管５を介して水冷媒熱交換器８の冷媒入口部と接続されている。水冷媒熱交換器８の冷媒出口部は、冷媒配管を介して膨張弁の入口部と接続されている。膨張弁の出口部は、別の冷媒配管を介して空気冷媒熱交換器７の冷媒入口部と接続されている。空気冷媒熱交換器７の冷媒出口部は、吸入管４を介して圧縮機２と接続されている。また、冷媒配管の途中には、その他の冷媒回路部品が取り付けられている場合もある。このように構成された冷媒回路の密閉空間内に所定の量の冷媒（例えばＣＯ_２冷媒）が封入されている。 The compressor 2 is connected to the refrigerant inlet portion of the water refrigerant heat exchanger 8 through the discharge pipe 5. The refrigerant outlet part of the water refrigerant heat exchanger 8 is connected to the inlet part of the expansion valve via a refrigerant pipe. The outlet part of the expansion valve is connected to the refrigerant inlet part of the air refrigerant heat exchanger 7 via another refrigerant pipe. The refrigerant outlet portion of the air refrigerant heat exchanger 7 is connected to the compressor 2 via the suction pipe 4. In addition, other refrigerant circuit components may be attached in the middle of the refrigerant pipe. A predetermined amount of refrigerant (for example, CO ₂ refrigerant) is sealed in the sealed space of the refrigerant circuit configured as described above.

図２に示すように、水冷媒熱交換器８は、前方から見て左右に長い略直方体形状の外形を有する発泡材の収納容器１２に収納され、送風機室１５内の送風機６の下方に位置するベース１７の上面に設置されている。水冷媒熱交換器８を収納した収納容器１２は、ベース１７に取り付けられた板金材の収納囲部材１０に囲まれ、発泡材の収納容器蓋１３により上側を覆われる。この収納容器蓋１３を更に覆うように、板金材の収納蓋部材１１が設置される。 As shown in FIG. 2, the water-refrigerant heat exchanger 8 is housed in a foam container 12 having a substantially rectangular parallelepiped shape that is long on the left and right when viewed from the front, and is positioned below the blower 6 in the blower chamber 15. It is installed on the upper surface of the base 17 to be operated. The storage container 12 storing the water-refrigerant heat exchanger 8 is surrounded by a sheet metal storage container 10 attached to the base 17 and covered with a foam storage container lid 13. A storage lid member 11 made of a sheet metal material is installed so as to further cover the storage container lid 13.

図１に示すように、機械室１４の上方および送風機室１５の上方の一部には、圧縮機２、膨張弁、送風機６等を駆動制御するインバータ電源等の電気部品を収納した電気部品収納箱９が組み込まれている。電気部品収納箱９の右部には、外部電気配線を接続する端子台９ａがあり、この端子台９ａを保護するため、サービスパネル２３が筐体の後面右側面部１８ｂの右側面部に取り付けられている。また、ヒートポンプ給湯室外機１の右側面部には、外部水配管Ａ（図示せず）が接続される接続部となる水入口バルブ２９と、外部水配管Ｂ（図示せず）が接続される接続部となる給湯出口バルブ３０とが設けられている。水入口バルブ２９は、給湯出口バルブ３０の下方に位置している。筐体の外部へ突出する水入口バルブ２９および給湯出口バルブ３０を保護するため、サービスパネル２４が筐体の後面右側面部１８ｂの右側面部に取り付けられている。 As shown in FIG. 1, an electrical component storage in which electrical components such as an inverter power source that drives and controls the compressor 2, the expansion valve, the blower 6, and the like is stored in a part above the machine chamber 14 and the blower chamber 15. A box 9 is incorporated. On the right side of the electrical component storage box 9, there is a terminal block 9a for connecting external electric wiring. In order to protect this terminal block 9a, a service panel 23 is attached to the right side surface portion of the rear right side surface portion 18b of the housing. Yes. In addition, a water inlet valve 29 serving as a connecting portion to which an external water pipe A (not shown) is connected and a connection to which an external water pipe B (not shown) is connected to the right side surface portion of the heat pump hot water supply outdoor unit 1. A hot water supply outlet valve 30 is provided. The water inlet valve 29 is located below the hot water outlet valve 30. In order to protect the water inlet valve 29 and the hot water outlet valve 30 projecting to the outside of the housing, the service panel 24 is attached to the right side surface portion of the rear right side surface portion 18b of the housing.

図３に示すように、水入口バルブ２９および給湯出口バルブ３０は、バルブベッド２８に取り付けられており、このバルブベッド２８が筐体の後面右側面部１８ｂの右側面部に取り付けられている。このように、水入口バルブ２９および給湯出口バルブ３０は、バルブベッド２８を介して筐体に固定されている。機械室１４内には、接続水配管１９および接続水配管２０が通っている。接続水配管１９の一端は、水冷媒熱交換器８の水入口部に接続されている。接続水配管１９の他端は、筐体の内側から水入口バルブ２９に接続されている。水入口バルブ２９に接続された外部水配管Ａ（図示せず）により供給される水は、接続水配管１９を通って、水冷媒熱交換器８の水入口部に流入する。接続水配管２０の一端は、水冷媒熱交換器８の給湯出口部に接続されている。接続水配管２０の他端は、筐体の内側から給湯出口バルブ３０に接続されている。水冷媒熱交換器８の給湯出口部から流出する湯は、接続水配管２０を経由して、給湯出口バルブ３０に接続された外部水配管Ｂ（図示せず）に送られる。このような構成により、接続水配管１９の水入口バルブ２９側の端部および接続水配管２０の給湯出口バルブ３０側の端部は、バルブベッド２８を介して、筐体に固定された状態となっている。接続水配管１９および接続水配管２０は、金属材料で構成される。 As shown in FIG. 3, the water inlet valve 29 and the hot water outlet valve 30 are attached to the valve bed 28, and this valve bed 28 is attached to the right side surface portion of the rear right side surface portion 18b of the housing. As described above, the water inlet valve 29 and the hot water outlet valve 30 are fixed to the housing via the valve bed 28. A connection water pipe 19 and a connection water pipe 20 pass through the machine room 14. One end of the connection water pipe 19 is connected to the water inlet of the water refrigerant heat exchanger 8. The other end of the connection water pipe 19 is connected to the water inlet valve 29 from the inside of the housing. Water supplied by an external water pipe A (not shown) connected to the water inlet valve 29 flows into the water inlet portion of the water refrigerant heat exchanger 8 through the connection water pipe 19. One end of the connection water pipe 20 is connected to the hot water supply outlet of the water refrigerant heat exchanger 8. The other end of the connection water pipe 20 is connected to the hot water supply outlet valve 30 from the inside of the housing. Hot water flowing out from the hot water supply outlet of the water-refrigerant heat exchanger 8 is sent to the external water pipe B (not shown) connected to the hot water supply outlet valve 30 via the connection water pipe 20. With such a configuration, the end of the connection water pipe 19 on the water inlet valve 29 side and the end of the connection water pipe 20 on the hot water supply outlet valve 30 side are fixed to the housing via the valve bed 28. It has become. The connection water pipe 19 and the connection water pipe 20 are made of a metal material.

次に、水冷媒熱交換器８の構造と機能について説明する。水冷媒熱交換器８は、管壁に螺旋状の山谷部（凹凸）が形成された山谷付き管８ａと、この山谷付き管８ａの外周の谷部（凹部）に沿って螺旋状に巻き付けられた冷媒配管８ｂとを有している。冷媒配管８ｂは、山谷付き管８ａの外周の谷部に挿入して密着接合され、ハンダ付けあるいはロウ付け等により接合が固着されている。このような構成により、山谷付き管８ａ内を流れる水と、冷媒配管８ｂ内を流れる冷媒との間で熱交換が行われる。このような山谷付き管８ａおよび冷媒配管８ｂの接合構造体が、数回曲げ成形されて略長円コイル状になった状態で、略直方体形状の収納容器１２内に収納されている。本実施形態の山谷付き管８ａは、３条の山谷部を有している。圧縮機２から吐出された冷媒が通る吐出管５は、３本の冷媒配管８ｂに分岐し、この３本の冷媒配管８ｂが山谷付き管８ａの外周の３条の谷部に沿ってそれぞれ巻き付けられている。ただし、本発明における水冷媒熱交換器８は、図示の構成に限らず、１条の山谷部を有する山谷付き管の外周の谷部に沿って１本の冷媒配管を巻き付けた構成となっていてもよい。 Next, the structure and function of the water refrigerant heat exchanger 8 will be described. The water-refrigerant heat exchanger 8 is spirally wound along a valley-attached tube 8a in which a spiral mountain valley (irregularity) is formed on the tube wall, and a valley (recess) on the outer periphery of the mountain valley-attached tube 8a. Refrigerant pipe 8b. The refrigerant pipe 8b is inserted into the outer peripheral valley portion of the crested pipe 8a and is tightly joined, and the joint is fixed by soldering or brazing. With such a configuration, heat exchange is performed between the water flowing in the valley-attached pipe 8a and the refrigerant flowing in the refrigerant pipe 8b. Such a joined structure of the valley-attached pipe 8a and the refrigerant pipe 8b is housed in a substantially rectangular parallelepiped storage container 12 in a state of being bent and molded several times into a substantially elliptical coil shape. The mountain-attached tube 8a of the present embodiment has three mountain valley portions. The discharge pipe 5 through which the refrigerant discharged from the compressor 2 branches is branched into three refrigerant pipes 8b, and the three refrigerant pipes 8b are respectively wound along the three valleys on the outer periphery of the crested pipe 8a. It has been. However, the water-refrigerant heat exchanger 8 in the present invention is not limited to the configuration shown in the figure, and has a configuration in which one refrigerant pipe is wound along the outer peripheral valley portion of the mountain-capped tube having one mountain-valley portion. May be.

図３の要部拡大図において、接合端部８ｃより左側の範囲では山谷付き管８ａと冷媒配管８ｂとが接合（固着）されており、接合端部８ｃより右側の範囲では、山谷付き管８ａと冷媒配管８ｂとが分離している。冷媒配管８ｂと分離した山谷付き管８ａは、そのまま延長されて、接続水配管２０を構成している。すなわち、接続水配管２０を構成する山谷付き管は、水冷媒熱交換器８を構成する山谷付き管８ａから連続して設けられている。熱交換は接合端部８ｃより左側の範囲において行われるので、接合端部８ｃは水冷媒熱交換器８の端部（給湯出口部）に相当する。したがって、接合端部８ｃから給湯出口バルブ３０までの範囲が接続水配管２０に相当する。本実施形態の接続水配管２０は、接合端部８ｃから給湯出口バルブ３０までのほぼ全範囲に渡って、山谷付き管で構成されている。 In the enlarged view of the main part of FIG. 3, the valley-attached pipe 8a and the refrigerant pipe 8b are joined (fixed) in the range on the left side of the junction end 8c, and the valley-attached pipe 8a in the range on the right side of the junction end 8c. And the refrigerant pipe 8b are separated. The valley-attached pipe 8a separated from the refrigerant pipe 8b is extended as it is to constitute the connection water pipe 20. That is, the ridge-and-valley tube constituting the connection water pipe 20 is provided continuously from the ridge-and-valley tube 8 a constituting the water-refrigerant heat exchanger 8. Since heat exchange is performed in a range on the left side of the joining end portion 8c, the joining end portion 8c corresponds to an end portion (hot water supply outlet portion) of the water-refrigerant heat exchanger 8. Therefore, the range from the joint end 8 c to the hot water supply outlet valve 30 corresponds to the connection water pipe 20. The connection water pipe 20 of the present embodiment is constituted by a pipe with a mountain valley over almost the entire range from the joint end 8 c to the hot water supply outlet valve 30.

図示を省略するが、接続水配管１９も接続水配管２０と同様にして山谷付き管で構成されている。すなわち、水冷媒熱交換器８の山谷付き管８ａが水入口部で冷媒配管８ｂと分離してそのまま延長されて、接続水配管１９を構成している。本実施形態の接続水配管１９は、水冷媒熱交換器８の水入口部から水入口バルブ２９までのほぼ全範囲に渡って、山谷付き管で構成されている。 Although not shown in the drawing, the connection water pipe 19 is also formed of a mountain-and-valley pipe in the same manner as the connection water pipe 20. In other words, the pipe 8 a with a valley of the water refrigerant heat exchanger 8 is separated from the refrigerant pipe 8 b at the water inlet and is extended as it is to constitute the connection water pipe 19. The connection water pipe 19 of this embodiment is constituted by a pipe with a mountain valley over almost the entire range from the water inlet portion of the water refrigerant heat exchanger 8 to the water inlet valve 29.

次に、水冷媒熱交換器８以外の機能部品について説明する。圧縮機２の内部には、冷媒の圧縮動作を行う圧縮部（図示せず）と、圧縮部と接続され圧縮部を駆動するモータ（図示せず）とが組み込まれ、外部から電源供給される事によりモータと圧縮部が所定の回転数で駆動するようになっている。また、圧縮機２の下部に設けられた脚板２ａの下面には、３〜４個程度の概略円筒形のゴムあるいは金属コイルの成形品からなる防振マウント３が取り付けられている。防振マウント３は、ベース１７上面に固定され、圧縮機２を弾性的に支持している。また、冷媒を吸入するための吸入管４が圧縮機２に取り付けられ、冷媒を圧縮機２内部で圧縮後、吐出するための吐出管５が圧縮機２に取り付けられている。 Next, functional parts other than the water refrigerant heat exchanger 8 will be described. Inside the compressor 2, a compressor (not shown) for compressing the refrigerant and a motor (not shown) connected to the compressor and driving the compressor are incorporated and supplied with power from the outside. As a result, the motor and the compression unit are driven at a predetermined rotational speed. Further, on the lower surface of the leg plate 2a provided at the lower part of the compressor 2, there are attached about 3 to 4 vibration-proof mounts 3 made of a substantially cylindrical rubber or metal coil molded product. The anti-vibration mount 3 is fixed to the upper surface of the base 17 and elastically supports the compressor 2. A suction pipe 4 for sucking refrigerant is attached to the compressor 2, and a discharge pipe 5 for discharging the refrigerant after being compressed inside the compressor 2 is attached to the compressor 2.

送風機６は、２〜３枚のプロペラ翼と、プロペラ翼を回転駆動させるモータとが組み合わされて構成され、外部からの電源供給によりモータとプロペラ翼が所定の回転数で回転するようになっている。膨張弁（図示せず）は、冷媒流路本体外側面にコイル部材が取り付けられ、コイル部材に外部から通電する事により発生する電磁作用により、内部の流路抵抗調節部を稼動させて冷媒の流路抵抗を調節し、膨張弁の冷媒上流側高圧と冷媒下流側低圧を所定の圧力に調節している。空気冷媒熱交換器７は、複数回往復曲げ成形された長い冷媒配管に多数のアルミ薄板のフィンが密着して略平板状になっており、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６による送風でフィン周辺を流れて通過する空気の風量が増やされて調節され、熱交換の量が増やされて調節されている。電気部品収納箱９は圧縮機２、膨張弁、送風機６等を駆動制御するインバータ電源等の電気部品を収納し、インバータ電源は、圧縮機２のモータの回転数を数十ｒｐｓ（Ｈｚ）〜百ｒｐｓ（Ｈｚ）程度の所定の回転数に変化させ、また、膨張弁の開度を所定の量に変化させ、また、送風機６の回転数を数百ｒｐｍ〜千ｒｐｍ程度の所定の回転数に変化させるよう制御している。 The blower 6 is configured by combining two or three propeller blades and a motor that rotationally drives the propeller blades, and the motor and the propeller blades are rotated at a predetermined number of revolutions by supplying power from the outside. Yes. An expansion valve (not shown) has a coil member attached to the outer surface of the refrigerant flow path body, and operates an internal flow path resistance adjusting unit by electromagnetic action generated by energizing the coil member from outside. The flow path resistance is adjusted, and the refrigerant upstream high pressure and refrigerant downstream low pressure of the expansion valve are adjusted to predetermined pressures. The air-refrigerant heat exchanger 7 has a substantially flat plate shape in which a large number of aluminum thin plate fins are in close contact with a long refrigerant pipe formed by reciprocating bending multiple times, and heat is generated by the refrigerant in the refrigerant pipe and the air around the fins. Exchange is performed, and the amount of air flowing through and passing through the periphery of the fins is increased by air blow by the blower 6 and adjusted, and the amount of heat exchange is increased and adjusted. The electrical component storage box 9 stores electrical components such as an inverter power source for driving and controlling the compressor 2, the expansion valve, the blower 6 and the like. The inverter power source has a motor rotation speed of the compressor 2 of several tens of rps (Hz) to The rotation speed is changed to a predetermined rotation speed of about 100 rps (Hz), the opening degree of the expansion valve is changed to a predetermined amount, and the rotation speed of the blower 6 is set to a predetermined rotation speed of about several hundred rpm to 1,000 rpm. It is controlled to change.

次に、ヒートポンプ給湯室外機１と貯湯装置との組み合わせ構成について説明する。ヒートポンプ給湯室外機１は、貯湯装置（図示せず）と組み合わせて使用することができる。貯湯装置には例えば数百リットル程度の容量の貯湯タンクと、貯湯タンク内の水を外部に送る送水ポンプとが組み込まれ、送水ポンプの入口部は貯湯タンク下部に接続された配管に接続され、送水ポンプの出口部は外部水配管Ａ（図示せず）に接続され、貯湯タンク上部に接続された配管には外部水配管Ｂ（図示せず）が接続されている。ヒートポンプ給湯室外機１と貯湯装置とは、外部水配管Ａ（図示せず）、外部水配管Ｂ（図示せず）および電気配線（図示せず）を介して接続されている。外部水配管Ａの貯湯タンク接続側と反対側はヒートポンプ給湯室外機１のサービスパネル２４内の水入口バルブ２９と接続され、外部水配管Ｂの貯湯タンク接続側と反対側はヒートポンプ給湯室外機１のサービスパネル２４内の給湯出口バルブ３０と接続されている。このようにヒートポンプ給湯室外機１と貯湯装置とで給湯回路が構成されている。 Next, the combination structure of the heat pump hot water supply outdoor unit 1 and the hot water storage device will be described. The heat pump hot water supply outdoor unit 1 can be used in combination with a hot water storage device (not shown). The hot water storage device incorporates a hot water storage tank with a capacity of, for example, several hundred liters, and a water supply pump that sends the water in the hot water storage tank to the outside. The inlet of the water supply pump is connected to a pipe connected to the lower part of the hot water storage tank, The outlet of the water pump is connected to an external water pipe A (not shown), and an external water pipe B (not shown) is connected to the pipe connected to the upper part of the hot water storage tank. The heat pump hot water supply outdoor unit 1 and the hot water storage device are connected via an external water pipe A (not shown), an external water pipe B (not shown), and electrical wiring (not shown). The side opposite to the hot water tank connection side of the external water pipe A is connected to the water inlet valve 29 in the service panel 24 of the heat pump hot water outdoor unit 1, and the side opposite to the hot water tank connection side of the external water pipe B is the heat pump hot water outdoor unit 1. The hot water outlet valve 30 in the service panel 24 is connected. Thus, the heat pump hot water supply outdoor unit 1 and the hot water storage device constitute a hot water supply circuit.

次に、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におけるヒートポンプ給湯室外機１の動作について説明する。電気部品収納箱９に収納されたインバータ電源から圧縮機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内の圧縮部が駆動する。インバータ電源は、モータの回転数を数十ｒｐｓ（Ｈｚ）〜百ｒｐｓ（Ｈｚ）程度の所定の回転数に変化させ、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、冷媒の流量を変化させる事により、所定の沸き上げ能力に調節制御している。 Next, the operation of the heat pump hot water supply outdoor unit 1 in the boiling operation for increasing the amount of hot water in the hot water storage tank in the hot water storage device will be described. When power is supplied from the inverter power supply stored in the electrical component storage box 9 to the motor in the compressor 2, the motor is driven, and the compression unit in the compressor 2 connected to the motor is driven. The inverter power supply changes the rotation speed of the motor to a predetermined rotation speed of about several tens of rps (Hz) to one hundred rps (Hz), and changes the circulation speed of the heat pump cycle in which the refrigerant circulates and the flow rate of the refrigerant. By doing this, it is controlled to a predetermined boiling capacity.

また、電気部品収納箱９に収納されたインバータ電源から送風機６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送風機６のプロペラ翼が回転駆動する。インバータ電源は、モータの回転数を数百ｒｐｍ〜千ｒｐｍ程度に変化させ、空気冷媒熱交換器７を通過する空気の流量を変化させる事により、空気冷媒熱交換器７での冷媒と空気の熱交換量を所定の量に調節制御している。空気は送風機６により送風機６の後方に設置された空気冷媒熱交換器７の後方から吸い込まれ、空気冷媒熱交換器７を通過し、空気冷媒熱交換器７と反対側の前方へ排出される。 Further, when power is supplied from the inverter power supply stored in the electrical component storage box 9 to the motor of the blower 6, the motor is driven, and the propeller blades of the blower 6 connected to the motor are rotationally driven. The inverter power supply changes the rotation speed of the motor to several hundred rpm to about 1000 rpm and changes the flow rate of the air passing through the air refrigerant heat exchanger 7, whereby the refrigerant and air in the air refrigerant heat exchanger 7 are changed. The heat exchange amount is adjusted and controlled to a predetermined amount. Air is sucked from the rear of the air refrigerant heat exchanger 7 installed behind the blower 6 by the blower 6, passes through the air refrigerant heat exchanger 7, and is discharged to the front opposite to the air refrigerant heat exchanger 7. .

また、電気部品収納箱９に収納されたインバータ電源から膨張弁の冷媒流路本体外側面に取り付けられたコイル部材に通電されると、冷媒流路本体内部の流路抵抗調節部を稼動させて冷媒の流路抵抗度を調節し、膨張弁の上流側高圧と下流側低圧の冷媒を所定の圧力に調節制御している。 Further, when the coil member attached to the outer surface of the refrigerant flow passage main body of the expansion valve is energized from the inverter power supply housed in the electrical component storage box 9, the flow passage resistance adjusting portion inside the refrigerant flow passage main body is operated. The flow path resistance degree of the refrigerant is adjusted, and the upstream high pressure and downstream low pressure refrigerant of the expansion valve are adjusted and controlled to a predetermined pressure.

圧縮機２の回転数、送風機６の回転数、膨張弁の流路抵抗度は、ヒートポンプ給湯室外機１の設置環境、使用環境に応じて制御される。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、低圧冷媒は吸入管４から圧縮機２に吸入される。低圧冷媒は圧縮機２内の圧縮部で高温高圧冷媒に圧縮され、圧縮機２から吐出管５に吐出され、高温高圧冷媒は吐出管５から水冷媒熱交換器８の冷媒入口部に流入する。高温高圧冷媒は、水冷媒熱交換器８の冷媒配管８ｂを通って山谷付き管８ａ内の低温水と熱交換し、低温水を加熱して高温湯を生成させる。高温高圧冷媒は水冷媒熱交換器８でエンタルピを低下させ、温度を低下させて水冷媒熱交換器８の冷媒出口部から膨張弁の入口部に流入する。高圧冷媒は膨張弁で所定の圧力に減圧され温度降下し低温低圧冷媒となり膨張弁の出口部から空気冷媒熱交換器７入口部に流入する。低温低圧冷媒は空気冷媒熱交換器７で空気と熱交換し、エンタルピを増加させ、空気冷媒熱交換器７の出口部から吸入管４に流入し、圧縮機２に吸入される。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。 The rotation speed of the compressor 2, the rotation speed of the blower 6, and the flow path resistance of the expansion valve are controlled according to the installation environment and use environment of the heat pump hot water supply outdoor unit 1. When the compression unit in the compressor 2 is driven, the refrigerant is compressed in the compression unit, and the low-pressure refrigerant is sucked into the compressor 2 from the suction pipe 4. The low-pressure refrigerant is compressed into high-temperature and high-pressure refrigerant at the compression section in the compressor 2 and discharged from the compressor 2 to the discharge pipe 5, and the high-temperature and high-pressure refrigerant flows from the discharge pipe 5 into the refrigerant inlet of the water refrigerant heat exchanger 8. . The high-temperature high-pressure refrigerant passes through the refrigerant pipe 8b of the water-refrigerant heat exchanger 8 and exchanges heat with the low-temperature water in the pipe 8a with a valley, and heats the low-temperature water to generate high-temperature hot water. The high-temperature and high-pressure refrigerant lowers the enthalpy in the water refrigerant heat exchanger 8, lowers the temperature, and flows from the refrigerant outlet portion of the water refrigerant heat exchanger 8 into the inlet portion of the expansion valve. The high-pressure refrigerant is depressurized to a predetermined pressure by the expansion valve, drops in temperature, becomes a low-temperature and low-pressure refrigerant, and flows into the air refrigerant heat exchanger 7 inlet from the outlet of the expansion valve. The low-temperature and low-pressure refrigerant exchanges heat with air in the air refrigerant heat exchanger 7, increases enthalpy, flows into the suction pipe 4 from the outlet of the air refrigerant heat exchanger 7, and is sucked into the compressor 2. Thus, the refrigerant circulates and a heat pump cycle is performed.

同時に、貯湯装置内の水ポンプにより貯湯装置内の貯湯タンク内下部の低温水が外部水配管Ａを通り、ヒートポンプ給湯室外機１の水入口バルブ２９を介して接続水配管１９に流入し、水冷媒熱交換器８の水入口部に流入し、水冷媒熱交換器８で冷媒と熱交換し加熱されて高温湯に生成される。生成された高温湯は水冷媒熱交換器８の給湯出口部から接続水配管２０に流入し、給湯出口バルブ３０を介して外部水配管Ｂを通り、貯湯装置内の貯湯タンク上部に戻される。このように貯湯タンク内の高温湯の量が増やされている。 At the same time, the water pump in the hot water storage device causes the low-temperature water in the lower part of the hot water storage tank in the hot water storage device to pass through the external water pipe A and into the connection water pipe 19 through the water inlet valve 29 of the heat pump hot water supply outdoor unit 1. The refrigerant flows into the water inlet of the refrigerant heat exchanger 8, exchanges heat with the refrigerant in the water / refrigerant heat exchanger 8, is heated, and is generated into hot water. The generated high temperature hot water flows into the connection water pipe 20 from the hot water outlet of the water refrigerant heat exchanger 8, passes through the external water pipe B through the hot water outlet valve 30, and is returned to the upper part of the hot water storage tank in the hot water storage device. Thus, the amount of hot water in the hot water storage tank is increased.

次に、圧縮機２の動作と、ヒートポンプ給湯室外機１の振動、騒音、低周波音発生との関係について説明する。圧縮機２内の圧縮部が駆動し、圧縮部内で冷媒の圧縮動作が行われる時、冷媒の圧力変動および内部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、回転振動が発生する。それらの振動の周波数成分は、圧縮機２の回転数整数倍で、低い倍数の周波数成分の方が大きく発生する傾向が高い。圧縮機２の振動は、下記（ア）〜（オ）に例示するような経路により、防振マウント３および配管類を介して、ベース１７、筐体各部に伝達する。 Next, the relationship between the operation of the compressor 2 and the vibration, noise, and low frequency sound generation of the heat pump hot water supply outdoor unit 1 will be described. When the compression unit in the compressor 2 is driven and the refrigerant is compressed in the compression unit, the compressor 2 may move in several directions such as the vertical direction and the lateral direction due to the pressure fluctuation of the refrigerant and the operation of the internal moving parts. Translational vibration and rotational vibration occur. The frequency components of those vibrations are integer multiples of the number of revolutions of the compressor 2, and the frequency components with a lower multiple are more likely to be generated. The vibration of the compressor 2 is transmitted to the base 17 and each part of the casing through the vibration isolating mount 3 and the pipes through paths as exemplified in the following (A) to (E).

（ア）圧縮機２→防振マウント３→ベース１７
（イ）圧縮機２→吸入管４→空気冷媒熱交換器７→ベース１７→筐体各部
（ウ）圧縮機２→吐出管５→水冷媒熱交換器８→ベース１７→筐体各部
（エ）圧縮機２→吐出管５→水冷媒熱交換器８→接続水配管１９→水入口バルブ２９→バルブベッド２８→筐体の後面右側面部１８ｂ→筐体各部
（オ）圧縮機２→吐出管５→水冷媒熱交換器８→接続水配管２０→給湯出口バルブ３０→バルブベッド２８→筐体の後面右側面部１８ｂ→筐体各部 (A) Compressor 2 → Anti-vibration mount 3 → Base 17
(A) Compressor 2 → Suction pipe 4 → Air refrigerant heat exchanger 7 → Base 17 → Case parts (c) Compressor 2 → Discharge pipe 5 → Water refrigerant heat exchanger 8 → Base 17 → Case parts (D ) Compressor 2 → Discharge pipe 5 → Water refrigerant heat exchanger 8 → Connection water pipe 19 → Water inlet valve 29 → Valve bed 28 → Rear right side 18 b of the casing → Each part of the casing (e) Compressor 2 → Discharge pipe 5 → Water refrigerant heat exchanger 8 → Connection water pipe 20 → Hot water supply outlet valve 30 → Valve bed 28 → Rear side right side 18b → Case each part

このように、圧縮機２の振動が上記（ア）〜（オ）のような経路でベース１７、筐体各部に伝達し、ヒートポンプ給湯室外機１の振動、騒音、低周波音の原因となり得るが、本発明者の研究によれば、従来、とりわけ（エ）および（オ）の振動伝達がヒートポンプ給湯室外機１の振動、騒音、低周波音の大きな要因となっている。これは、接続水配管１９および接続水配管２０には冷媒配管より外径の大きい配管が使用されるため、接続水配管１９および接続水配管２０として金属製の平滑管が用いられている従来の構成では、接続水配管１９および接続水配管２０の剛性が高く、広範囲の周波数の振動が接続水配管１９および接続水配管２０によって筐体に伝達し易い特性があることが原因である。 In this way, the vibration of the compressor 2 is transmitted to the base 17 and each part of the casing through the paths (a) to (e) above, and may cause vibration, noise, and low frequency sound of the heat pump hot water supply outdoor unit 1. However, according to the research of the present inventors, the vibration transmission of (d) and (v) has been a major factor of vibration, noise, and low frequency sound of the heat pump hot water outdoor unit 1 in particular. This is because a pipe having a larger outer diameter than the refrigerant pipe is used for the connection water pipe 19 and the connection water pipe 20, so that a metal smooth pipe is used as the connection water pipe 19 and the connection water pipe 20. This is because the connection water pipe 19 and the connection water pipe 20 have high rigidity, and vibrations in a wide range of frequencies are easily transmitted to the housing by the connection water pipe 19 and the connection water pipe 20.

これに対し、本実施形態のヒートポンプ給湯室外機１では、接続水配管１９および接続水配管２０が、可撓性を有し、振動を吸収し易い山谷付き管で構成されているので、振動が接続水配管１９、接続水配管２０を伝って水入口バルブ２９、給湯出口バルブ３０に伝達するまでの間に、広い範囲の周波数成分の振動が山谷付き管によって吸収されて十分に低減する。このため、筐体各部の振動が確実に抑制され、筐体各部から放射される騒音、低周波音の発生を確実に抑制することができる。また、従来、振動、騒音、低周波音の増加を抑制するためには筐体各部への防振部材の貼り付け、筐体各部の板厚増加、筐体各部への補強部材取付け等が必要で、コストが著しく増加する問題点があったが、本実施形態によれば、これらの対策が不要または削減可能となり、コストを低減することが可能となる。 On the other hand, in the heat pump hot water supply outdoor unit 1 of the present embodiment, the connection water pipe 19 and the connection water pipe 20 are made of a tube with a valley and valley that has flexibility and easily absorbs vibration. The vibrations of a wide range of frequency components are absorbed by the pipe with the valleys and reduced sufficiently until they are transmitted to the water inlet valve 29 and the hot water outlet valve 30 through the connection water pipe 19 and the connection water pipe 20. For this reason, the vibration of each part of a housing | casing is suppressed reliably and generation | occurrence | production of the noise radiated | emitted from each part of a housing | casing and a low frequency sound can be suppressed reliably. Conventionally, in order to suppress the increase of vibration, noise, and low frequency sound, it is necessary to attach vibration-proof members to each part of the case, increase the thickness of each part of the case, and attach a reinforcing member to each part of the case. However, although there is a problem that the cost is remarkably increased, according to the present embodiment, these measures are unnecessary or can be reduced, and the cost can be reduced.

また、本実施形態では、接続水配管１９、接続水配管２０を構成する山谷付き管は、水冷媒熱交換器８を構成する山谷付き管８ａから連続して設けられているため、製造時に、接続水配管１９、接続水配管２０を水冷媒熱交換器８に接続するための工程が不要となる。すなわち、従来は、水冷媒熱交換器８に別部材からなる接続水配管１９、接続水配管２０を接続してロウ付けしているが、そのための組立工程が不要になるので、組立コストを低減することができる。 Moreover, in this embodiment, since the pipe with a valley which comprises the connection water piping 19 and the connection water pipe 20 is provided continuously from the mountain valley pipe 8a which comprises the water-refrigerant heat exchanger 8, at the time of manufacture, A process for connecting the connection water pipe 19 and the connection water pipe 20 to the water refrigerant heat exchanger 8 becomes unnecessary. In other words, the connecting water pipe 19 and the connecting water pipe 20 made of different members are connected to the water refrigerant heat exchanger 8 and brazed in the past, but the assembly process for that is not necessary, so the assembly cost is reduced. can do.

更に、本実施形態では、接続水配管１９、接続水配管２０は、水冷媒熱交換器８との接続箇所から、筐体に対する固定箇所である水入口バルブ２９、給湯出口バルブ３０付近までの全範囲において山谷付き管で構成されているので、振動をより確実に吸収、低減することができる。このため、筐体各部への振動の伝達がより確実に抑制され、筐体各部から放射される騒音、低周波音の発生をより確実に抑制することができる。 Further, in the present embodiment, the connection water pipe 19 and the connection water pipe 20 are all connected from the connection point with the water-refrigerant heat exchanger 8 to the vicinity of the water inlet valve 29 and the hot water supply outlet valve 30 that are fixed to the housing. Since it is composed of a tube with a valley in the range, vibration can be absorbed and reduced more reliably. For this reason, the transmission of vibration to each part of the housing is more reliably suppressed, and the generation of noise and low-frequency sound radiated from each part of the housing can be more reliably suppressed.

ただし、本発明では、必ずしも接続水配管１９、接続水配管２０のほぼ全部を山谷付き管で構成する必要はなく、接続水配管１９、接続水配管２０の一部の区間が山谷付き管で構成されていればよい。その場合、少なくとも、水冷媒熱交換器８との接続箇所から収納容器１２の外部に至るまでの部分の接続水配管１９、接続水配管２０が山谷付き管で構成されていることが好ましい。これにより、振動を十分に吸収、低減することができ、筐体各部への振動の伝達が確実に抑制され、筐体各部から放射される騒音、低周波音の発生を確実に抑制することができる。 However, in the present invention, it is not always necessary to configure almost all of the connection water pipe 19 and the connection water pipe 20 with the valley-attached pipes, and some sections of the connection water pipe 19 and the connection water pipe 20 are constituted with the valley-attached pipes. It only has to be done. In that case, it is preferable that the connection water piping 19 and the connection water piping 20 at least from the connection location with the water-refrigerant heat exchanger 8 to the outside of the storage container 12 are constituted by a valleyed tube. As a result, vibration can be sufficiently absorbed and reduced, transmission of vibration to each part of the housing is reliably suppressed, and generation of noise and low-frequency sound radiated from each part of the housing can be reliably suppressed. it can.

以上説明したように、接続水配管１９、接続水配管２０の少なくとも一部を山谷付き管で構成することにより、ヒートポンプ給湯室外機１の振動、騒音、低周波音の低減に大きな効果があり、コストの増加を抑制しながら振動、騒音、低周波音の面で優れたヒートポンプ給湯室外機１を得ることができる。給湯を行うヒートポンプ給湯室外機１は、深夜電力を利用する場合が多く、深夜の振動、騒音、特に低周波音には使用者の関心が高く、本発明による低周波音低減効果は著しく貢献する。また、ＣＯ_２冷媒を使用したヒートポンプ給湯室外機１の場合には、Ｒ４１０Ａ冷媒を使用した空調機と比較して圧縮機２に発生する振動が大きいため、深夜電力利用に際して深夜の低周波音低減に貢献する本発明の有用性は更に大きくなる。 As described above, by configuring at least a part of the connection water pipe 19 and the connection water pipe 20 with a valley-attached pipe, there is a great effect in reducing the vibration, noise, and low frequency sound of the heat pump hot water outdoor unit 1, The heat pump hot water supply outdoor unit 1 excellent in terms of vibration, noise, and low frequency sound can be obtained while suppressing an increase in cost. The heat pump hot water supply outdoor unit 1 that supplies hot water often uses late-night power, and the user is highly interested in late-night vibration and noise, particularly low-frequency sound, and the low-frequency sound reduction effect of the present invention contributes significantly. . In addition, in the case of the heat pump hot water supply outdoor unit 1 using CO ₂ refrigerant, the vibration generated in the compressor 2 is larger than that of the air conditioner using R410A refrigerant. The usefulness of the present invention that contributes to the above is further increased.

実施の形態２．
次に、図４を参照して、本発明の実施の形態２について説明するが、上述した実施の形態１との相違点を中心に説明し、同一部分または相当部分は同一符号を付し説明を省略する。 Embodiment 2. FIG.
Next, the second embodiment of the present invention will be described with reference to FIG. 4. The description will focus on the differences from the first embodiment described above, and the same or corresponding parts will be denoted by the same reference numerals. Is omitted.

図４は、本発明の実施の形態２のヒートポンプ給湯室外機の要部拡大図である。図４に示すように、本実施形態のヒートポンプ給湯室外機１の水冷媒熱交換器８は、断面が略円形の平滑管で構成される水配管８ｄの外周部に１本の冷媒配管８ｅが平行に密着接合され、ハンダ付けあるいはロウ付け等により接合が固着された構成となっている。このような水配管８ｄおよび冷媒配管８ｅの接合構造体が、数回曲げ成形されて略長円コイル状になった状態で、略直方体形状の収納容器１２内に収納されている。水冷媒熱交換器８の給湯出口部となる水配管８ｄの端部８ｆには、山谷付き管で構成された接続水配管２０がロウ付け等により接合されている。図示を省略するが、接続水配管１９も接続水配管２０と同様にして山谷付き管で構成されている。 FIG. 4 is an enlarged view of a main part of a heat pump hot water supply outdoor unit according to Embodiment 2 of the present invention. As shown in FIG. 4, the water-refrigerant heat exchanger 8 of the heat pump hot water supply outdoor unit 1 of the present embodiment has one refrigerant pipe 8e on the outer peripheral portion of a water pipe 8d formed of a smooth pipe having a substantially circular cross section. It has a structure in which the joints are closely joined in parallel and the joints are fixed by soldering or brazing. Such a joint structure of the water pipe 8d and the refrigerant pipe 8e is housed in a substantially rectangular parallelepiped storage container 12 in a state of being bent and molded several times into a substantially elliptical coil shape. A connecting water pipe 20 formed of a pipe with a valley is joined to an end 8f of a water pipe 8d serving as a hot water supply outlet of the water refrigerant heat exchanger 8 by brazing or the like. Although not shown in the drawing, the connection water pipe 19 is also formed of a mountain-and-valley pipe in the same manner as the connection water pipe 20.

このような本実施形態のヒートポンプ給湯室外機１によれば、実施の形態１と同様の効果が得られる。すなわち、圧縮機２に起因する振動が接続水配管１９、接続水配管２０を伝って水入口バルブ２９、給湯出口バルブ３０に伝達するまでの間に、広い範囲の周波数成分の振動が山谷付き管によって吸収されて十分に低減する。このため、筐体各部の振動が確実に抑制され、筐体各部から放射される騒音、低周波音の発生を確実に抑制することができる。 According to such a heat pump hot water supply outdoor unit 1 of the present embodiment, the same effects as those of the first embodiment can be obtained. That is, vibrations of a wide range of frequency components are transmitted through the connecting water pipe 19 and the connecting water pipe 20 to the water inlet valve 29 and the hot water supply outlet valve 30 until the vibration due to the compressor 2 is transmitted to the pipe with the valleys. To be sufficiently reduced. For this reason, the vibration of each part of a housing | casing is suppressed reliably and generation | occurrence | production of the noise radiated | emitted from each part of a housing | casing and a low frequency sound can be suppressed reliably.

このように、山谷付き管で構成された接続水配管１９、接続水配管２０を水冷媒熱交換器８に接合することにより、水冷媒熱交換器８の構造にかかわらず、本発明を適用することが可能である。なお、図示の構成では、接続水配管１９、接続水配管２０を構成する山谷付き管として、実施の形態１と同様に管壁の山谷部が螺旋状に形成されたものを用いているが、本実施形態では、管壁に環状の山谷部が長手方向に沿って多数並んで形成された山谷付き管によって接続水配管１９、接続水配管２０の少なくとも一部を構成するようにしてもよい。 In this way, the present invention is applied regardless of the structure of the water refrigerant heat exchanger 8 by joining the connection water pipe 19 and the connection water pipe 20 constituted by the pipes with the valleys to the water refrigerant heat exchanger 8. It is possible. In the configuration shown in the figure, as the pipe with peaks and valleys constituting the connection water pipe 19 and the connection water pipe 20, the one in which the valley portion of the pipe wall is formed in a spiral shape as in the first embodiment is used. In this embodiment, you may make it comprise at least one part of the connection water piping 19 and the connection water piping 20 with the pipe | tube with a mountain valley in which many cyclic | annular peaks and valleys were formed in the pipe wall along with the longitudinal direction.

実施の形態３．
次に、図５を参照して、本発明の実施の形態３について説明するが、上述した実施の形態１との相違点を中心に説明し、同一部分または相当部分は同一符号を付し説明を省略する。 Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to FIG. 5. The description will focus on the differences from the first embodiment described above, and the same or corresponding parts will be denoted by the same reference numerals. Is omitted.

図５は、本発明の実施の形態３のヒートポンプ給湯室外機の要部拡大図である。図５に示すように、本実施形態のヒートポンプ給湯室外機１では、山谷付き管で構成された接続水配管２０を覆う防振部材２１が取り付けられている。防振部材２１は、例えばゴム材料、樹脂材料等の弾性材料（弾力性を有する材料）で構成されている。本実施形態の防振部材２１は、山谷付き管で構成された接続水配管２０を密着して覆う円筒状に形成されている。図示を省略するが、山谷付き管で構成された接続水配管１９にも同様の防振部材２１が取り付けられている。 FIG. 5 is an enlarged view of a main part of the heat pump hot water supply outdoor unit according to Embodiment 3 of the present invention. As shown in FIG. 5, in the heat pump hot water supply outdoor unit 1 of the present embodiment, a vibration isolating member 21 that covers the connection water pipe 20 constituted by a pipe with a valley is attached. The vibration isolation member 21 is made of an elastic material (elastic material) such as a rubber material or a resin material. The vibration isolating member 21 of the present embodiment is formed in a cylindrical shape that tightly covers and covers the connection water pipe 20 formed of a pipe with a valley. Although illustration is omitted, a similar vibration isolating member 21 is also attached to the connection water pipe 19 constituted by a pipe with a valley.

本実施形態によれば、上述したような防振部材２１を接続水配管１９および接続水配管２０に取り付けたことにより、実施の形態１と比べて、圧縮機２に起因する振動が接続水配管１９、接続水配管２０を伝って水入口バルブ２９、給湯出口バルブ３０に伝達するまでの間に広い範囲の周波数成分の振動が更に低減するとともに、接続水配管１９と接続水配管２０の各々の固有振動数付近の周波数成分を中心とした振動も確実に低減する。このため、筐体各部の振動がより確実に抑制され、筐体各部から放射される騒音、低周波音の発生をより確実に抑制することができる。 According to the present embodiment, the vibration isolation member 21 as described above is attached to the connection water pipe 19 and the connection water pipe 20, so that the vibration caused by the compressor 2 is less than that of the first embodiment. 19, vibrations in a wide range of frequency components are further reduced until they are transmitted to the water inlet valve 29 and the hot water supply outlet valve 30 through the connection water pipe 20, and each of the connection water pipe 19 and the connection water pipe 20 is Vibration centered around the frequency component near the natural frequency is also reliably reduced. For this reason, the vibration of each part of a housing | casing is suppressed more reliably, and generation | occurrence | production of the noise radiated | emitted from each part of a housing | casing and a low frequency sound can be suppressed more reliably.

また、本実施形態の防振部材２１は、その内周に山谷部を有しており、接続水配管１９、接続水配管２０を構成する山谷付き管の外周の山谷部と防振部材２１の内周の山谷部とが噛み合って、接続水配管１９、接続水配管２０を構成する山谷付き管の外周の谷部が防振部材２１によって埋められている。このような構成により、更に優れた振動低減効果が得られるため、筐体各部の振動が更に確実に抑制され、筐体各部から放射される騒音、低周波音の発生を更に確実に抑制することができる。 Further, the vibration isolating member 21 of the present embodiment has a mountain valley portion on the inner periphery thereof, and the mountain valley portion on the outer periphery of the pipe with the valley forming the connection water piping 19 and the connection water piping 20 and the vibration isolation member 21. The inner peripheral mountain valleys mesh with each other, and the outer peripheral valley portions of the pipes with the valleys that form the connection water pipe 19 and the connection water pipe 20 are filled with the vibration isolation member 21. With such a configuration, a further excellent vibration reduction effect can be obtained, so that vibration of each part of the housing is further reliably suppressed, and generation of noise and low-frequency sound radiated from each part of the housing is further reliably suppressed. Can do.

１ヒートポンプ給湯室外機
２圧縮機
３防振マウント
４吸入管
５吐出管
６送風機
７空気冷媒熱交換器
８水冷媒熱交換器
８ａ山谷付き管
８ｂ，８ｅ冷媒配管
８ｃ接合端部
８ｄ水配管
８ｆ端部
９電気部品収納箱
１０収納囲部材
１１収納蓋部材
１２収納容器
１３収納容器蓋
１４機械室
１５送風機室
１６仕切板
１７ベース
１８ａ前面左側面部
１８ｂ後面右側面部
１８ｃ上面部
１９，２０接続水配管
２１防振部材
２３，２４サービスパネル
２８バルブベッド
２９水入口バルブ
３０給湯出口バルブ DESCRIPTION OF SYMBOLS 1 Heat pump hot water supply outdoor unit 2 Compressor 3 Anti-vibration mount 4 Suction pipe 5 Discharge pipe 6 Blower 7 Air refrigerant heat exchanger 8 Water refrigerant heat exchanger 8a Yamatani pipe 8b, 8e Refrigerant pipe 8c Joint end 8d Water pipe 8f End Part 9 Electrical component storage box 10 Storage enclosure member 11 Storage cover member 12 Storage container 13 Storage container cover 14 Machine room 15 Blower room 16 Partition plate 17 Base 18a Front left side 18b Rear right side 18c Upper surface 19, 20 Connection water piping 21 Anti-vibration members 23, 24 Service panel 28 Valve bed 29 Water inlet valve 30 Hot water outlet valve

Claims

A housing,
A refrigerant circuit that is provided in the housing and in which the enclosed refrigerant circulates;
A water-refrigerant heat exchanger that is provided in the casing and performs heat exchange between the water supplied from outside the casing and the refrigerant;
One end is connected to the water-refrigerant heat exchanger, the other end is fixed to the casing, and water is supplied from outside the casing or connected water piping through which hot water is supplied outside the casing,
With
At least a part of the connection water pipe is composed of a pipe with a mountain valley in which a spiral or annular mountain valley portion is formed on the pipe wall ,
The said valley-attached pipe has one or more spiral valleys on its outer periphery,
The water-refrigerant heat exchanger is configured such that the flow path of the water is the pipe with the valley.
The heat pump water heater outdoor unit in which the pipe with the valleys constituting the connection water pipe is continuously provided from the pipe with the valleys constituting the water refrigerant heat exchanger .

A storage container for storing the water refrigerant heat exchanger;
2. The heat pump hot water supply outdoor unit according to claim 1, wherein at least a portion of the connection water pipe from the connection point with the water refrigerant heat exchanger to the outside of the storage container is configured by the pipe with the valley.

The heat pump hot-water supply outdoor unit according to claim 1 or 2, wherein the connection water pipe is configured by the ridge-and-valley tube from a connection point with the water refrigerant heat exchanger to a vicinity of a fixing point with respect to the housing.

The heat pump hot water supply outdoor unit of any one of Claims 1 thru | or 3 provided with the vibration proof member comprised with the elastic material which covers the outer periphery of the said pipe with a valley and valley which comprises the said connection water piping.

5. The heat pump hot water supply outdoor unit according to claim 4 , wherein the vibration isolation member is formed so as to fill a valley portion on an outer periphery of the crested tube.