JP2006077701A - Hermetic-type compressor - Google Patents

Hermetic-type compressor Download PDF

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JP2006077701A
JP2006077701A JP2004263610A JP2004263610A JP2006077701A JP 2006077701 A JP2006077701 A JP 2006077701A JP 2004263610 A JP2004263610 A JP 2004263610A JP 2004263610 A JP2004263610 A JP 2004263610A JP 2006077701 A JP2006077701 A JP 2006077701A
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compression mechanism
pipe
hermetic
welded
suction port
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JP4356568B2 (en
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Takushi Sasa
卓士 佐々
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive hermetic-type compressor with high efficiency and high reliability which has a structure of an inlet connection pipe such that the number of component parts is reduced and that an inlet port of a compression mechanism and the interior of an airtight container are accurately sealed with a simple constitution. <P>SOLUTION: The inlet connection pipe 118 having a guide portion with a connecting pipe which is a copper pipe and which is connected to the inlet port of a compression mechanism section 102, and a welding pipe 119 having a diameter not smaller than the outer diameter of the guide portion are brazed into an integrated unit. The guide portion of the inlet connection pipe 118 and the inlet port of the compression mechanism section 102 are closely secured to each other so that the space within the airtight container 101 is sealed. Further, the welding pipe 119 is sealedly secured to the outer side of the airtight container 101 by welding. It is thus possible to realize the structure of the inlet connection pipe which prevents conduction of heat to the compression mechanism section 102, is reduced in number of the component parts, is excellent in assemblability and can prevent thermal distortion in the compression mechanism section 102. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、業務用及び家庭用の空気調和機（空調機）等に使用される密閉型圧縮機に関するもので、特に密閉容器、及び圧縮機構部と外部接続管構造に関するものである。   The present invention relates to a hermetic compressor used for commercial and household air conditioners (air conditioners), and more particularly to a hermetic container, a compression mechanism, and an external connection pipe structure.

従来の密閉型圧縮機として、密閉型電動縦置きロータリー圧縮機と密閉型電動縦置きスクロール圧縮機を例にとり、図面とともに説明する。   As a conventional hermetic compressor, a hermetic electric vertical rotary compressor and a hermetic electric vertical scroll compressor will be described with reference to the drawings.

図１０と図１１は、従来の密閉型電動縦置きロータリー圧縮機の内部構造を表す圧縮機構部横断面図と圧縮機縦断面図で、図１２と図１３は従来の密閉型電動縦置きスクロール圧縮機の内部構造を表す圧縮機構部横断面図と圧縮機縦断面図である。なお、ロータリー圧縮機、及びスクロール圧縮機の圧縮原理については、すでに公知であるので、ここでは省略する。   FIGS. 10 and 11 are a cross-sectional view and a vertical cross-sectional view of a compression mechanism portion showing an internal structure of a conventional hermetic electric vertical rotary compressor, and FIGS. 12 and 13 are conventional hermetic electric vertical scrolls. It is the compression mechanism part cross-sectional view showing the internal structure of a compressor, and a compressor longitudinal cross-sectional view. Note that the compression principle of the rotary compressor and scroll compressor is already known, and is omitted here.

従来、この種の密閉型圧縮機は密閉容器１０１の内部に、圧縮機構部１０２（波線範囲の部位）と、電動機部１０３（波線範囲の部位）とが設置されている。電動機部１０３は、固定子１０４と、回転子１０５とから構成されており、この電動機部１０３で発生する回転力が、クランク軸１０６を介して圧縮機構部１０２へ伝達され圧縮動作を行う。   Conventionally, in this type of hermetic compressor, a compression mechanism unit 102 (a portion in the wavy line range) and an electric motor unit 103 (a portion in the wavy line range) are installed inside the hermetic container 101. The electric motor unit 103 includes a stator 104 and a rotor 105, and the rotational force generated by the electric motor unit 103 is transmitted to the compression mechanism unit 102 via the crankshaft 106 to perform a compression operation.

密閉容器１０１には冷媒ガスを吸い込む吸入接続管１０７と圧縮機構部１０２にて圧縮された冷媒ガスを吐き出す吐出管１０８が取り付けられており、前記回転力が圧縮機構部１０２へ伝達されると、吸入接続管１０７から低圧冷媒が吸い込まれ、圧縮機構部１０２で圧縮された後、密閉容器１０１内部に吐き出され、電動機部１０３を経由・冷却した後、吐出管１０８から高圧冷媒として吐き出され、それぞれ蒸発器（図示せず）、凝縮器（図示せず）に外部接続配管１０９にて接続されて、いわゆる冷凍サイクルを構成する。   A closed connection pipe 107 for sucking refrigerant gas and a discharge pipe 108 for discharging refrigerant gas compressed by the compression mechanism 102 are attached to the sealed container 101, and when the rotational force is transmitted to the compression mechanism 102, After the low pressure refrigerant is sucked from the suction connection pipe 107 and compressed by the compression mechanism section 102, it is discharged into the sealed container 101, and after passing through the motor section 103 and cooled, discharged from the discharge pipe 108 as high pressure refrigerant, An evaporator (not shown) and a condenser (not shown) are connected by an external connection pipe 109 to constitute a so-called refrigeration cycle.

このような密閉型圧縮機に用いられる密閉容器１０１としては、一般的に鉄系材料（例えばＳＳ４００等の鋼板材）の円筒管（以降、胴シェルと記載）１１０の上下に皿状の同鉄系材料より成る蓋（以降、上シェル、下シェルと記載）１１１，１１２を円周溶接・密封固定したもので、これに対して外部接続配管１０９は耐圧性を持ち、形状が容易に成形できることから一般的に銅管が用いられており、これらと銅ロー１１３によるロー付け等により接合を容易にするために、前記圧縮機の吸入接続管１０７、及び吐出管１０８は同じく銅管を成形したものが用いられている事が多い。   As the hermetic container 101 used in such a hermetic compressor, generally, a plate-like iron is formed above and below a cylindrical tube (hereinafter referred to as a shell shell) 110 of an iron-based material (for example, a steel plate material such as SS400). Caps made of a base material (hereinafter referred to as upper shell and lower shell) 111, 112 are circumferentially welded and hermetically fixed. On the other hand, the external connection pipe 109 has pressure resistance and can be easily shaped. In general, copper pipes are used, and the suction connection pipe 107 and the discharge pipe 108 of the compressor are also formed of copper pipes in order to facilitate the joining thereof by brazing with a copper braze 113 or the like. Things are often used.

ここで、前述のように密閉容器１０１内部に配した圧縮機構部１０２はこの密封容器１０１の外部接続配管１０９との間に吸入接続管１０７で連結されているが、密閉容器１０１内部（高圧）と圧縮機構部吸入口付近（低圧）とには圧力差があるため、圧縮効率向上のためには、この間のシール性を向上し、洩れを低減する必要がある。   Here, as described above, the compression mechanism 102 disposed inside the sealed container 101 is connected to the external connection pipe 109 of the sealed container 101 by the suction connection pipe 107, but the inside of the sealed container 101 (high pressure). Therefore, there is a pressure difference between the vicinity of the suction port of the compression mechanism part (low pressure), and in order to improve compression efficiency, it is necessary to improve the sealing performance and reduce leakage.

従って、図１０、図１１のような従来例における吸入接続管廻りの構成は、案内管１１４を別部品として設け、圧縮機構部１０２の吸入口と圧入等により密着固定することでシール性を得、胴シェル１１０に吸入外管１１５をフラックス等を用いて、銀ロー１１６によりロー付け固定され、更に吸入接続管１０７をこの案内管１１４内部に挿入し、これら３つの部品を同時に外部より銅ロー１１３にてロー付け・密封固定した構成となっている。   Therefore, in the configuration around the suction connection pipe in the conventional example as shown in FIG. 10 and FIG. 11, the guide pipe 114 is provided as a separate part, and the sealing performance is obtained by tightly fixing the suction pipe to the suction port of the compression mechanism 102. The outer shell 115 is fixed to the shell 110 by brazing with a silver solder 116 using flux or the like, and the suction connecting pipe 107 is inserted into the guide pipe 114. These three parts are simultaneously connected to the copper shell from the outside. 113 is brazed and hermetically fixed.

一方、図１２、図１３のような従来例の場合は、圧縮機構部へのロー付け時の熱歪みによる圧縮効率低下が懸念されることと同時に、案内管１１４の組み付けを容易にするため、圧縮機構部１０２の吸入口との間に樹脂材料から成るリング状緩衝材１１７が組み込まれ、シール性を得る構成となっており、吸入接続管廻りの組み付け構成は胴シェル１１０に吸入外管１１５をフラックス等を用いて、銀ロー１１６によりロー付け固定し、更に吸入接続管１０７をこの案内管１１４内部に挿入し、これら３つの部品を同時に外部より銅ロー１１３にてロー付け・密封固定した構成となっている。   On the other hand, in the case of the conventional example as shown in FIG. 12 and FIG. 13, in order to facilitate the assembly of the guide tube 114, at the same time, there is a concern about a decrease in compression efficiency due to thermal distortion during brazing to the compression mechanism. A ring-shaped cushioning material 117 made of a resin material is incorporated between the suction port of the compression mechanism portion 102 and a sealing property is obtained. The assembly structure around the suction connection pipe is the trunk shell 110 and the suction outer pipe 115. Is soldered with a silver solder 116 using a flux or the like, and the suction connecting pipe 107 is inserted into the guide pipe 114, and these three parts are simultaneously soldered and sealed with a copper solder 113 from the outside. It has a configuration.

ここで、吸入接続管廻りをロー付け、加熱することにより、各構成部品間で熱が伝わり、圧縮機構部１０２への熱歪み等の悪影響を極力避けるため、前記案内管１１４としては鉄系材料やそれに銅メッキを施したものを別部品として用いることが一般的であった（例えば特許文献１、２参照）。
特開平１１−０１３６７１号公報（第６頁、図５） 特開２００１−１５３０４８号公報（第７頁、図６） Here, the guide pipe 114 is made of an iron-based material so that heat is transmitted between each component by brazing and heating the suction connection pipe, and adverse effects such as thermal distortion on the compression mechanism 102 are avoided as much as possible. In addition, it has been common to use a copper-plated one as a separate part (see, for example, Patent Documents 1 and 2).
Japanese Patent Laid-Open No. 11-013671 (page 6, FIG. 5) JP 2001-153048 A (page 7, FIG. 6)

しかしながら、前記従来の構成のような密閉型圧縮機吸入接続管廻りの構成では、部品点数が多く、構成も複雑であるため、組み付け性を悪化させ、コスト高の要因となる。   However, in the configuration around the hermetic compressor suction connection pipe as in the conventional configuration, since the number of parts is large and the configuration is complicated, the assembling property is deteriorated and the cost is increased.

更に前述のように案内管に鉄系材料の銅メッキ品を用いると、加工性や環境問題的な悪影響の多い部品を用いていることとなる。   Further, as described above, when a copper-plated product of an iron-based material is used for the guide tube, parts having many adverse effects on workability and environmental problems are used.

また、極力熱伝導を抑えるよう、前述のように案内管の材質を考慮しても、最終銅ロー付け加熱による圧縮機構部への熱伝導による熱歪みを完全に排除すことは非常に困難で、結果的に圧縮機効率への悪影響や信頼性低下等の品質低下の要因となる。具体的には、圧縮機構部の吸入口に樹脂材料より成るリング状緩衝材を組み込み、案内管とのシール性を得るような構成の場合、加熱により前記緩衝材が溶け易くなることが懸念され、圧入密着等によりシール性を得るような構成の場合では加熱による熱歪みが直接圧縮機構部に伝わり易いため、圧縮機効率への悪影響や信頼性低下等の品質悪化が懸念されることとなる。   In addition, in order to suppress heat conduction as much as possible, considering the material of the guide tube as described above, it is very difficult to completely eliminate the thermal distortion due to heat conduction to the compression mechanism due to the final copper brazing heating. As a result, it becomes a factor of quality deterioration such as an adverse effect on compressor efficiency and a decrease in reliability. Specifically, in the case where a ring-shaped cushioning material made of a resin material is incorporated in the suction port of the compression mechanism portion to obtain a sealing property with the guide tube, there is a concern that the cushioning material is likely to be melted by heating. In the case of a structure that obtains a sealing property by press-fitting adhesion or the like, since thermal distortion due to heating is easily transmitted directly to the compression mechanism part, there is a concern about quality deterioration such as an adverse effect on compressor efficiency and a decrease in reliability. .

一方、吸入外管を密閉容器に銀ロー付けする際に用いるフラックスは、加水分解し易く、特に冷凍機油を分解する可能性が高くなり、これは圧縮機の信頼性低下につながることとなり、更に環境負荷的にも使用削減を行う必要がある。   On the other hand, the flux used when the outer shell is brazed with silver is easily hydrolyzed, and in particular, the possibility of decomposing refrigerating machine oil is increased, which leads to a decrease in the reliability of the compressor. It is necessary to reduce use in terms of environmental load.

本発明はこれらのような複数の課題を全て解決するものであり、部品点数を削減しつつ、組み付け性に優れ、圧縮機構部への熱伝導や熱歪みを排除し、環境的にも良好な吸入接続管構成を持つ高性能で信頼性の高い安価な密閉型圧縮機を提供することを目的とする。   The present invention solves all of the above-mentioned multiple problems, is excellent in assembling, reducing the number of parts, eliminating heat conduction and thermal distortion to the compression mechanism, and environmentally good. An object of the present invention is to provide a high-performance, reliable and inexpensive hermetic compressor having a suction connection pipe configuration.

前記従来の課題を解決する為に、本発明による密閉型圧縮機の吸入接続管廻りの構成は、圧縮機構部吸入口への接続管が銅管より成る案内管とその案内管の外径以上の径を持つ溶着管とのロー付けされた一体化部品で構成され、案内管と圧縮機構部吸入口とが樹脂材料より成るリング状緩衝材を組み込み、シール性を得たり、または圧入密着してシール性を得ることにより密閉容器内部の空間とが遮断され、更に溶着管が密閉容器外部と溶接固定された構成を有する。   In order to solve the above-mentioned conventional problems, the structure around the suction connection pipe of the hermetic compressor according to the present invention is such that the connection pipe to the suction port of the compression mechanism section is made of a copper pipe and the outer diameter of the guide pipe is larger than that. The guide tube and the compression mechanism section suction port incorporate a ring-shaped cushioning material made of a resin material to obtain a sealing property or press fit. By obtaining a sealing property, the space inside the sealed container is shut off, and the welded tube is welded and fixed to the outside of the sealed container.

本構成によって、部品点数を削減し、組み付け性に優れ、圧縮機構部への熱伝導や熱歪みを抑えた吸入接続管構成を可能とし、安価な密閉型圧縮機を提供することが出来る。   With this configuration, the number of parts is reduced, the assembly is easy, the suction connection pipe configuration with reduced heat conduction and thermal distortion to the compression mechanism is possible, and an inexpensive hermetic compressor can be provided.

以上のように、本発明の吸入接続管廻りの構成によれば、圧縮機構部吸入口からの洩れを抑え、更に部品点数を削減し、フラックスを用いた銀ロー付け等を行うことなく、また圧縮機構部への高温加熱による熱歪み等の悪影響を与えること無く、高効率・高信頼性でかつ安価な密閉型圧縮機を提供することが出来る。   As described above, according to the configuration around the suction connection pipe of the present invention, leakage from the suction port of the compression mechanism section is suppressed, the number of parts is further reduced, and silver brazing using flux is not performed. It is possible to provide a high-efficiency, high-reliability, and inexpensive hermetic compressor without adverse effects such as thermal distortion caused by high-temperature heating on the compression mechanism.

以下、本発明の実施の形態について、図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（実施の形態１）
図１、図２は、本発明の実施の形態１における密閉型電動縦置きスクロール圧縮機の横断面図と縦断面図の一例である。図１及び図２、また従来の図１０、１１及び図１２、１３と同じ構成要素については同じ符号を用い、従来の図１０、１１及び図１２、１３と同じ構成要素については説明を省略する。 (Embodiment 1)
1 and 2 are an example of a cross-sectional view and a vertical cross-sectional view of a hermetic electric vertical scroll compressor according to Embodiment 1 of the present invention. 1 and 2, and the same components as those in FIGS. 10, 11, 12, and 13 are denoted by the same reference numerals, and the description of the same components as those in FIGS. .

図１及び図２において、吸入接続管１１８は従来例の吸入接続管１０７と案内管１１４の形状を合わせた銅管成形品で、この外周に溶着管１１９が、銅ロー１１３にてロー付け固定されている。   In FIG. 1 and FIG. 2, the suction connection pipe 118 is a copper pipe molded product in which the shapes of the suction connection pipe 107 and the guide pipe 114 of the conventional example are combined, and a weld pipe 119 is brazed and fixed to the outer periphery with a copper solder 113. Has been.

本実施の形態における吸入接続管廻りの構成は、胴シェル１１０に圧縮機構部１０２組み付け後、胴シェル１１０側面に設けた穴を通して圧縮機構部１０２の吸入口に吸入接続管１１８の案内部を挿入し、樹脂材料より成るリング状緩衝材１１７によりシールされて密閉容器１０１内部の高圧領域と吸入口内部の低圧領域とが遮断されている。また、前述のようにこの吸入接続管１０７は溶着管１１９と予め銅ロー１１３にてロー付け一体化してあり、溶着管１１９が胴シェル１１０の外部側面と溶接（例えば拡散溶接や抵抗溶接）することにより圧縮機に密封固定される。   The structure around the suction connection pipe in the present embodiment is that after the compression mechanism portion 102 is assembled to the shell shell 110, the guide portion of the suction connection tube 118 is inserted into the suction port of the compression mechanism portion 102 through the hole provided on the side surface of the shell shell 110. In addition, the high-pressure region inside the sealed container 101 and the low-pressure region inside the suction port are blocked by a ring-shaped buffer material 117 made of a resin material. Further, as described above, the suction connection pipe 107 and the welding pipe 119 are previously brazed and integrated with the copper solder 113, and the welding pipe 119 is welded to the outer side surface of the shell 110 (for example, diffusion welding or resistance welding). This is hermetically fixed to the compressor.

ここで、上記溶接固定による接合は、周囲温度が約４０℃程度の加熱しかしないため、このような構成によれば、熱伝導により樹脂材料より成るリング状緩衝材１１７に熱影響（例えば溶ける等）を与えることが無く、また、吸入接続管１０７が変形するような加熱がされることなく胴シェル１１０への密着固定が可能である。   Here, since the joining by welding fixing is only heating at an ambient temperature of about 40 ° C., according to such a configuration, the ring-shaped cushioning material 117 made of a resin material is thermally affected (for example, melted by heat conduction). ) And without being heated such that the suction connecting pipe 107 is deformed, it can be tightly fixed to the trunk shell 110.

なお、本実施の形態において、スクロール圧縮機を代表例として用いているが、本件は圧縮機構に関係無く、同様の密閉型圧縮機の吸入口廻りの構成で有れば、同様に実施可能である。   In this embodiment, a scroll compressor is used as a representative example. However, the present invention is not limited to the compression mechanism, and can be similarly implemented as long as it has a configuration around the suction port of the same hermetic compressor. is there.

また、本実施の形態に於いて、密閉型縦置き圧縮機により胴シェル１１０側面に圧縮機構部１０２の吸入口を設けた場合を代表例として用いたが、上シェル１１１、又は下シェル１１２に吸入口を設けた、密閉型横置き圧縮機等に用いても、同様に実施可能である。   Further, in this embodiment, the case where the suction port of the compression mechanism unit 102 is provided on the side surface of the shell shell 110 by a hermetic vertical compressor is used as a representative example, but the upper shell 111 or the lower shell 112 is used as a representative example. The present invention can be implemented in the same manner even when used in a hermetic horizontal compressor provided with a suction port.

（実施の形態２）
図３、図４は、本発明の実施の形態２における密閉型電動縦置きスクロール圧縮機の横断面図と縦断面図の一例である。図３及び図４、また従来の図１０、１１及び図１２、１３と同じ構成要素については同じ符号を用い、従来の図１０、１１及び図１２、１３と同じ構成要素については説明を省略する。 (Embodiment 2)
3 and 4 are an example of a transverse sectional view and a longitudinal sectional view of a hermetic electric vertical scroll compressor according to Embodiment 2 of the present invention. 3 and 4, and the same components as those in FIGS. 10, 11, 12, and 13 are denoted by the same reference numerals, and the description of the same components as those in FIGS. .

図３及び図４において、吸入接続管１１８は従来例の吸入接続管１０７と案内管１１４の形状を合わせた銅管成形品で、この外周に溶着管１１９が、銅ロー１１３にてロー付け固定されている。   3 and 4, the suction connection pipe 118 is a copper pipe molded product in which the shapes of the suction connection pipe 107 and the guide pipe 114 of the conventional example are combined, and a welding pipe 119 is brazed and fixed to the outer periphery with a copper solder 113. Has been.

本実施の形態における吸入接続管廻りの構成は、胴シェル１１０に圧縮機構部１０２組み付け後、胴シェル１１０側面に設けた穴を通して圧縮機構部１０２の吸入口に吸入接続管１１８の案内部を挿入・圧入固定され、溶着管１１９が胴シェル１１０の外部側面と溶接（例えば拡散溶接や抵抗溶接）することにより圧縮機に密封固定される。   The structure around the suction connection pipe in the present embodiment is that after the compression mechanism portion 102 is assembled to the shell shell 110, the guide portion of the suction connection tube 118 is inserted into the suction port of the compression mechanism portion 102 through the hole provided on the side surface of the shell shell 110. -It is press-fitted and the welded tube 119 is hermetically fixed to the compressor by welding (for example, diffusion welding or resistance welding) to the outer side surface of the shell 110.

ここで、上記溶接固定による接合は、前述のように吸入接続管１１８が殆ど加熱されること無く胴シェル１１０に密着固定可能で、また、先に胴シェル１１０に組み付けられている圧縮機構部１０２の吸入口位置に合わせ、吸入接続管１１８の案内部を沿わせて圧入固定が可能となるため、従来以上の圧入密着によるシール性向上が得られる。更に、圧縮機構部１０２への熱歪も殆ど発生しないため、本実施の形態のようなスクロール圧縮機等にも用いることが可能である。   Here, the joining by the above-mentioned welding fixing can be fixed to the shell shell 110 with almost no heating of the suction connection pipe 118 as described above, and the compression mechanism portion 102 assembled to the shell shell 110 first. In accordance with the position of the suction port, it is possible to press-fit and fix the suction connection pipe 118 along the guide portion, so that the sealing performance can be improved by press-fit adhesion more than conventional. Furthermore, since the thermal distortion to the compression mechanism 102 hardly occurs, it can be used for a scroll compressor as in the present embodiment.

なお、本実施の形態において、スクロール圧縮機を代表例として用いているが、本件は圧縮機構に関係無く、同様の密閉型圧縮機の吸入口廻りの構成で有れば、同様に実施可能である。   In this embodiment, a scroll compressor is used as a representative example. However, the present invention is not limited to the compression mechanism, and can be similarly implemented as long as it has a configuration around the suction port of the same hermetic compressor. is there.

また、本実施の形態に於いて、密閉型縦置き圧縮機により胴シェル１１０側面に圧縮機構部１０２の吸入口を設けた場合を代表例として用いたが、上シェル１１１、又は下シェル１１２に吸入口を設けた、密閉型横置き圧縮機等に用いても、同様に実施可能である。   Further, in this embodiment, the case where the suction port of the compression mechanism unit 102 is provided on the side surface of the shell shell 110 by a hermetic vertical compressor is used as a representative example, but the upper shell 111 or the lower shell 112 is used as a representative example. The present invention can be implemented in the same manner even when used in a hermetic horizontal compressor provided with a suction port.

（実施の形態３）
図５は、実施の形態１又は２に於ける、吸入接続管１１８及び溶着管１１９に於いて、溶着管１１９を図示のように端面を鋭角（約６０°）な突起形状とした場合の一例である。ここで、前述のように吸入接続管１１８と溶着管１１９とは、予め銅ロー１１３によりロー付け一体化されている。 (Embodiment 3)
FIG. 5 shows an example of the suction connection pipe 118 and the welding pipe 119 according to the first or second embodiment when the welding pipe 119 has a projection shape with an acute angle (about 60 °) at its end surface as shown in the figure. It is. Here, as described above, the suction connecting pipe 118 and the welding pipe 119 are integrated by brazing with the copper solder 113 in advance.

本実施の形態による溶着管端面形状とすることにより、溶着管１１９と胴シェル１１０の溶接固定（例えば拡散溶接や抵抗溶接）を行い易く、密着性の安定化を図ることが可能となる。   By adopting the weld pipe end face shape according to the present embodiment, it is easy to perform welding and fixing (for example, diffusion welding or resistance welding) between the weld pipe 119 and the shell 110, and it is possible to stabilize the adhesion.

（実施の形態４）
図６は、実施の形態１〜３に於いて、溶着管１１９の溶接接合面側内径を拡管した形状で、外周側に傾斜面（約４５°）を設けた場合の一例である。ここで、前述のように吸入接続管１１８と溶着管１１９とは、予め銅ロー１１３によりロー付け一体化されている。 (Embodiment 4)
FIG. 6 is an example of the case where, in the first to third embodiments, the weld pipe 119 has an expanded inner diameter on the weld joint surface side and an inclined surface (about 45 °) is provided on the outer peripheral side. Here, as described above, the suction connecting pipe 118 and the welding pipe 119 are integrated by brazing with the copper solder 113 in advance.

また、図７は図６を上方より見た場合の一例の図で、治具１２０による組み付け例を表した図である。溶着管１１９外周に設けた傾斜面を利用して、治具１２０にて胴シェル１１０側に押し当てることで、前述から記載の溶接がより容易にで確実に出来るようになる。   Further, FIG. 7 is a diagram showing an example when FIG. 6 is viewed from above, and shows an example of assembly by the jig 120. By using the inclined surface provided on the outer periphery of the welded tube 119 and pressing it against the shell shell 110 side with the jig 120, the above-described welding can be performed more easily and reliably.

一方、本実施の形態による溶着管外管形状とすることにより、胴シェル１１０に設けた吸入接続管挿入用の穴径を大きくすることが可能で、これにより胴シェル１１０への圧縮機構部１０２の組み付け公差を緩和し、組み付け性を容易にすることが出来る。   On the other hand, the outer pipe shape of the welded pipe according to the present embodiment makes it possible to increase the diameter of the hole for inserting the suction connection pipe provided in the shell shell 110, thereby compressing the compression mechanism portion 102 to the shell shell 110. Assembling tolerance can be relaxed, and assembling can be facilitated.

（実施の形態５）
図８は、実施の形態１〜４に於ける胴シェル１１０側面の溶着管１１９接合面範囲に平面形状部１２１を設けた場合の吸入接続管廻りの接合状態を表す図である。 (Embodiment 5)
FIG. 8 is a diagram illustrating a joining state around the suction connecting pipe when the planar shape portion 121 is provided in the joint surface range of the welded pipe 119 on the side surface of the shell shell 110 in the first to fourth embodiments.

本実施の形態による溶着管１１９接合面の範囲に平面形状部１２１を設けた胴シェル１１０によれば、溶着管１１９の接合面（端面）を平面状にすることが出来るため、溶着管１１９の成形を容易にし、更に溶接固定を面と面により行えるため、より安定した密封固定が可能となる。   According to the trunk shell 110 provided with the planar shape portion 121 in the range of the welding surface of the welded tube 119 according to the present embodiment, the welded surface (end surface) of the welded tube 119 can be made flat. The molding can be facilitated, and further, the welding can be fixed by the surface, so that more stable sealing and fixing can be performed.

なお、本実施の形態に於いて、密閉型縦置き圧縮機により胴シェル１１０側面に圧縮機構部１０２の吸入口を設けた場合を代表例として用いたが、上シェル１１１、又は下シェル１１２に吸入口を設けた、密閉型横置き圧縮機等に用いても、同様に実施可能である。   In the present embodiment, the case where the suction port of the compression mechanism portion 102 is provided on the side surface of the shell shell 110 by a hermetic vertical compressor is used as a representative example, but the upper shell 111 or the lower shell 112 is used as a representative example. The present invention can be implemented in the same manner even when used in a hermetic horizontal compressor provided with a suction port.

以上のように、本発明にかかる密閉型圧縮機は、圧縮機構部吸入口からの洩れを抑え、更に部品点数を削減し、フラックスを用いた銀ロー付け等を行うことなく、また圧縮機構部への高温加熱による熱歪み等の悪影響を与えること無く、高効率・高信頼性でかつ安価な密閉型圧縮機を提供することが可能となるので、業務用及び家庭用の空気調和機等の他にヒートポンプ式給湯装置等にも適用できる。   As described above, the hermetic compressor according to the present invention suppresses leakage from the suction port of the compression mechanism unit, further reduces the number of parts, and without performing silver brazing using a flux, etc. It is possible to provide a high-efficiency, high-reliability, and inexpensive hermetic compressor without adverse effects such as thermal distortion due to high-temperature heating. In addition, it can be applied to a heat pump type hot water supply apparatus.

本発明の実施の形態１におけるスクロール圧縮機の横断面図1 is a cross-sectional view of a scroll compressor according to Embodiment 1 of the present invention. 本発明の実施の形態１におけるスクロール圧縮機の縦断面図The longitudinal cross-sectional view of the scroll compressor in Embodiment 1 of this invention 本発明の実施の形態２におけるスクロール圧縮機の横断面図Cross-sectional view of the scroll compressor according to Embodiment 2 of the present invention 本発明の実施の形態２におけるスクロール圧縮機の縦断面図The longitudinal cross-sectional view of the scroll compressor in Embodiment 2 of this invention 本発明の実施の形態３における吸入接続管と溶着管の断面図Sectional drawing of the suction connection pipe and welding pipe in Embodiment 3 of this invention 本発明の実施の形態４における吸入接続管と溶着管の断面図Sectional drawing of the suction connection pipe and welding pipe in Embodiment 4 of this invention 本発明の実施の形態４における吸入接続管と溶着管の組み付け状態を示す図The figure which shows the assembly | attachment state of the suction connection pipe and the welding pipe in Embodiment 4 of this invention 本発明の実施の形態５における胴シェル形状でのスクロール圧縮機横断面図Scroll compressor cross-sectional view in the shell shell shape in Embodiment 5 of the present invention 本発明の実施の形態５における胴シェル形状でのスクロール圧縮機縦断面図Scroll compressor longitudinal cross-sectional view in trunk shell shape in Embodiment 5 of the present invention 従来のロータリー圧縮機の横断面図Cross section of a conventional rotary compressor 従来のロータリー圧縮機の縦断面図Longitudinal section of a conventional rotary compressor 従来のスクロール圧縮機の横断面図Cross-sectional view of a conventional scroll compressor 従来のスクロール圧縮機の縦断面図Longitudinal sectional view of a conventional scroll compressor

符号の説明Explanation of symbols

１０１ 密閉容器
１０２ 圧縮機構部
１０３ 電動機部
１０４ 固定子
１０５ 回転子
１０６ クランク軸
１０７ 吸入接続管
１０８ 吐出管
１０９ 外部接続配管
１１０ 胴シェル
１１１ 上シェル
１１２ 下シェル
１１３ 銅ロー
１１４ 案内管
１１５ 吸入外管
１１６ 銀ロー
１１７ リング状緩衝材
１１８ 吸入接続管（案内管との一体化形状）
１１９ 溶着管
１２０ 治具
１２１ 胴シェル平面形状部 DESCRIPTION OF SYMBOLS 101 Airtight container 102 Compression mechanism part 103 Electric motor part 104 Stator 105 Rotor 106 Crankshaft 107 Suction connection pipe 108 Discharge pipe 109 External connection pipe 110 Body shell 111 Upper shell 112 Lower shell 113 Copper low 114 Guide pipe 115 Suction outer pipe 116 Silver low 117 Ring-shaped cushioning material 118 Suction connection pipe (integrated shape with guide pipe)
119 Welding tube 120 Jig 121 Body shell plane shape part

Claims (5)

密閉容器内にクランク軸を介して圧縮動作を行う圧縮機構部と、これを駆動する電動機とから成る密閉型圧縮機において、圧縮機構部は吸入口と吐出口を持ち、クランク軸の回転と共に順次容積縮小する事により圧縮動作を行う構造で、圧縮機構部吸入口への接続管が銅管より成る案内管とその案内管の外径以上の径を持つ溶着管とのロー付けされた一体化部品で構成され、案内管と圧縮機構部吸入口とが樹脂材料より成るリング状緩衝材を介して密着して、密閉容器内部の空間と遮断し、溶着管が密閉容器外部と溶接固定されていることを特徴とする、密閉型圧縮機。 In a hermetic compressor composed of a compression mechanism that performs a compression operation via a crankshaft in a hermetic container and an electric motor that drives the compression mechanism, the compression mechanism has a suction port and a discharge port, and sequentially rotates along with the rotation of the crankshaft. A structure in which the compression operation is performed by reducing the volume, and the guide pipe made of a copper pipe is connected to the compression mechanism suction port and the welded pipe having a diameter larger than the outer diameter of the guide pipe is brazed. Consists of parts, the guide tube and the compression mechanism section suction port are in close contact with each other via a ring-shaped cushioning material made of a resin material, shut off from the space inside the sealed container, and the welding tube is welded and fixed to the outside of the sealed container A hermetic compressor, characterized in that 密閉容器内にクランク軸を介して圧縮動作を行う圧縮機構部と、これを駆動する電動機とから成る密閉型圧縮機において、圧縮機構部は吸入口と吐出口を持ち、クランク軸の回転と共に順次容積縮小する事により圧縮動作を行う構造で、圧縮機構部吸入口への接続管が銅管より成る案内管とその案内管の外径以上の径を持つ溶着管とのロー付けされた一体化部品で構成され、前記案内管と圧縮機構部吸入口とが圧入密着することにより密閉容器内部の空間と遮断され、一方で溶着管が密閉容器外部と溶接固定されていることを特徴とする、密閉型圧縮機。 In a hermetic compressor composed of a compression mechanism that performs a compression operation via a crankshaft in a hermetic container and an electric motor that drives the compression mechanism, the compression mechanism has a suction port and a discharge port, and sequentially rotates along with the rotation of the crankshaft. A structure in which the compression operation is performed by reducing the volume, and the guide pipe made of a copper pipe is connected to the compression mechanism suction port and the welded pipe having a diameter larger than the outer diameter of the guide pipe is brazed. Consists of parts, characterized in that the space inside the sealed container is shut off by press-fitting the guide tube and the compression mechanism section suction port, while the welded tube is welded and fixed to the outside of the sealed container, Hermetic compressor. 溶着管の端面の形状が鋭角なリング状の突起形状であることを特徴とする請求項１〜２に記載の密閉型圧縮機。 The hermetic compressor according to claim 1, wherein the end face of the welded tube is a ring-shaped protrusion having an acute angle. 溶着管の外径に拡管部を設け、斜めの傾斜面があることを特徴とする請求項１〜３に記載の密閉型圧縮機。 The hermetic compressor according to any one of claims 1 to 3, wherein a tube expansion portion is provided on an outer diameter of the welded tube, and an inclined inclined surface is provided. 密閉容器外周に平面部を設けて、溶着管が密閉容器外部で溶接固定されていることを特徴とする、請求項１〜４に記載の密閉型圧縮機。
5. The hermetic compressor according to claim 1, wherein a flat portion is provided on the outer periphery of the hermetic container, and the welding pipe is welded and fixed outside the hermetic container.
JP2004263610A 2004-09-10 2004-09-10 Hermetic compressor Expired - Fee Related JP4356568B2 (en)

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JP2008255918A (en) * 2007-04-06 2008-10-23 Matsushita Electric Ind Co Ltd Hermetic compressor
JP2009108815A (en) * 2007-10-31 2009-05-21 Daikin Ind Ltd Pipe connection structure
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JP2010190169A (en) * 2009-02-20 2010-09-02 Sanyo Electric Co Ltd Scroll compressor
CN112081747A (en) * 2019-06-13 2020-12-15 艾默生环境优化技术(苏州)有限公司 Air inlet structure of high-pressure side scroll compressor and high-pressure side scroll compressor

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Publication number Priority date Publication date Assignee Title
JP2008255918A (en) * 2007-04-06 2008-10-23 Matsushita Electric Ind Co Ltd Hermetic compressor
JP2009108815A (en) * 2007-10-31 2009-05-21 Daikin Ind Ltd Pipe connection structure
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CN112081747A (en) * 2019-06-13 2020-12-15 艾默生环境优化技术(苏州)有限公司 Air inlet structure of high-pressure side scroll compressor and high-pressure side scroll compressor

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