JP2009127616A - Hermetic compressor - Google Patents

Hermetic compressor Download PDF

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JP2009127616A
JP2009127616A JP2007307283A JP2007307283A JP2009127616A JP 2009127616 A JP2009127616 A JP 2009127616A JP 2007307283 A JP2007307283 A JP 2007307283A JP 2007307283 A JP2007307283 A JP 2007307283A JP 2009127616 A JP2009127616 A JP 2009127616A
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surface side
cylindrical member
space
housing
side cylindrical
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Tomiji Suzuki
富次 鈴木
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Sanden Corp
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Sanden Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a hermetic compressor reduced in manufacturing cost by reducing the weight of a hermetic container without degrading the pressure tightness. <P>SOLUTION: A housing body 11 comprises an outer surface side cylindrical member 11a installed on the outer surface side and an inner surface side cylindrical member 11b installed on the inner surface side. A plurality of projecting parts 11c for forming the space between the inner peripheral surface of the outer surface side cylindrical member 11a and the outer peripheral surface of the inner surface side cylindrical member 11b are formed on the outer peripheral surface of the inner surface side cylindrical member 11b. Therefore, since a housing 10 can be formed in a hollow structure, the use amount of the members forming the housing 10 can be reduced. As a result, the manufacturing cost can be reduced without degrading the pressure tightness. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、冷媒を圧縮する圧縮部と圧縮部を駆動する駆動部を収納する密閉容器を備えた密閉型圧縮機に関するものである。   The present invention relates to a hermetic compressor including a hermetic container that houses a compression unit that compresses a refrigerant and a drive unit that drives the compression unit.

従来、この種の密閉型圧縮機としては、冷媒を圧縮する圧縮部と圧縮部を駆動する駆動部を内部に収納する密閉容器を備えたものが知られている（例えば、特許文献１参照）。
特開２００７−２３９６７８号公報 2. Description of the Related Art Conventionally, as this type of hermetic compressor, one having a hermetic container that houses therein a compression unit that compresses a refrigerant and a drive unit that drives the compression unit is known (for example, see Patent Document 1). .
JP 2007-239678 A

近年、冷凍サイクルを構成する冷媒としては、二酸化炭素等の自然系冷媒が用いられている。このため、前記密閉型圧縮機においては、冷媒を高圧に圧縮する必要があり、密閉容器に高い耐圧性能が求められる。密閉容器は、高い耐圧性能を保持するために板厚の厚い部材によって形成されているため、密閉容器を形成する部材の使用量が増加することにより装置全体の重量が大きくなり、製造コストが高くなる。   In recent years, natural refrigerants such as carbon dioxide have been used as the refrigerant constituting the refrigeration cycle. For this reason, in the hermetic compressor, it is necessary to compress the refrigerant to a high pressure, and high pressure resistance is required for the hermetic container. Since the closed container is formed of a thick member in order to maintain high pressure resistance, an increase in the amount of the member forming the closed container increases the weight of the entire apparatus, resulting in a high manufacturing cost. Become.

本発明の目的とするところは、耐圧性能を低下させることなく、密閉容器の軽量化することにより、製造コストの低減を図ることのできる密閉型圧縮機を提供することにある。   An object of the present invention is to provide a hermetic compressor capable of reducing the manufacturing cost by reducing the weight of the hermetic container without lowering the pressure resistance performance.

本発明は前記目的を達成するために、冷媒を圧縮する圧縮部と圧縮部を駆動する駆動部を内部に収納する密閉容器を備えた密閉型圧縮機において、前記密閉容器を、外面側に位置する外面側部材と内面側に位置する内面側部材とから構成し、外面側部材の内面及び内面側部材の外面の少なくとも一方に、外面側部材の内面と内面側部材の外面との間に空間を形成可能な複数の突起部を設けている。   In order to achieve the above object, the present invention provides a hermetic compressor including a hermetic container that houses therein a compressor that compresses a refrigerant and a driving unit that drives the compressor. A space between the inner surface of the outer surface side member and the outer surface of the inner surface side member, at least one of the inner surface of the outer surface side member and the outer surface of the inner surface side member. A plurality of projecting portions capable of forming are provided.

これにより、各突起部によって外面側部材の内面と内面側部材の外面との間に空間が形成されることから、密閉容器が中空構造となり、密閉容器を構成する部材の使用量の低減が可能となる。   Thereby, since a space is formed between the inner surface of the outer surface side member and the outer surface of the inner surface side member by each protrusion, the sealed container has a hollow structure, and the usage amount of the members constituting the sealed container can be reduced. It becomes.

本発明によれば、密閉容器を中空構造とすることにより、密閉容器を構成する部材の使用量を低減することができるので、耐圧性能を低下させることなく、製造コストの低減を図ることが可能となる。   According to the present invention, since the closed container has a hollow structure, it is possible to reduce the amount of the members constituting the sealed container, and thus it is possible to reduce the manufacturing cost without reducing the pressure resistance performance. It becomes.

図１乃至図２は本発明の第１実施形態を示すもので、図１は密閉型圧縮機の側面断面図、図２はハウジングの平面断面図、図３は内面側円筒部材の要部斜視図である。   1 and 2 show a first embodiment of the present invention. FIG. 1 is a side sectional view of a hermetic compressor, FIG. 2 is a plan sectional view of a housing, and FIG. FIG.

この密閉型圧縮機は、縦長形状のハウジング１０と、ハウジング１０内の上部に設けられ、吸入した冷媒を圧縮するための圧縮部２０と、ハウジング１０内の圧縮部２０の下方に設けられ、圧縮部２０を駆動させるための電動機３０とを備え、冷媒として自然系冷媒である二酸化炭素が用いられる。   This hermetic compressor is provided in a vertically long housing 10, an upper part in the housing 10, a compression part 20 for compressing the sucked refrigerant, and a compression part 20 in the housing 10. The motor 30 for driving the unit 20 is provided, and carbon dioxide, which is a natural refrigerant, is used as the refrigerant.

ハウジング１０は、金属製の部材からなり、中心軸を上下方向に向けて配置した円筒状のハウジング本体１１と、ハウジング本体１１の上端開口及び下端開口を閉鎖する半球形状の一対のキャップ１２とから構成されている。   The housing 10 is made of a metal member, and includes a cylindrical housing body 11 having a central axis oriented in the vertical direction, and a pair of hemispherical caps 12 that close the upper end opening and the lower end opening of the housing body 11. It is configured.

ハウジング本体１１は、外面側に設けられた外面側円筒部材１１ａと、内面側に設けられた内面側円筒部材１１ｂと、内面側円筒部材１１ｂの外周面全体に複数設けられ、外面側円筒部材１１ａの内周面と内面側円筒部材１１ｂの外周面との間に空間を形成するための半球状に形成された突起部１１ｃと、外面側円筒部材１１ａの内周面と内面側円筒部材１１ｂの外周面との間の空間を上下両側から閉鎖する一対の閉鎖リング１１ｄとからなる。   The housing body 11 is provided on the entire outer peripheral surface of the outer surface side cylindrical member 11a provided on the outer surface side, the inner surface side cylindrical member 11b provided on the inner surface side, and the inner surface side cylindrical member 11b. Of the hemispherical projection 11c for forming a space between the inner peripheral surface of the inner cylindrical member 11b and the inner peripheral surface of the inner cylindrical member 11b, and the inner peripheral surface of the outer cylindrical member 11b and the inner cylindrical member 11b. It consists of a pair of closing rings 11d that close the space between the outer peripheral surface from the upper and lower sides.

外面側円筒部材１１ａと内面側円筒部材１１ｂは、それぞれロール圧延によって形成された金属板を加工することにより設けられている。また、ロール圧延によって内面側円筒部材１１ｂ用の金属板を形成する際には、複数の凹部が設けられたロール圧延用のロールを用いることにより、内面側円筒部材１１ｂ用の金属板に突起部１１ｃが一体に形成されるようになっている。   The outer surface side cylindrical member 11a and the inner surface side cylindrical member 11b are provided by processing metal plates formed by roll rolling, respectively. Moreover, when forming the metal plate for the inner surface side cylindrical member 11b by roll rolling, a protrusion is formed on the metal plate for the inner surface side cylindrical member 11b by using a roll for roll rolling provided with a plurality of recesses. 11c is formed integrally.

キャップ１２は、ハウジング本体１１と同様に、外面側半球部材１２ａと、内面側半球部材１２ｂと、内面側半球部材１２ｂの外面全体に複数設けられ、外面側半球部材１２ａの内面と内面側半球部材１２ｂの外面との間に空間を形成するための半球状に形成された突起部１２ｃと、外面側半球部材１２ａの内面と内面側半球部材１２ｂの外面との間の空間を閉鎖する閉鎖リング１２ｄとからなる。   Similar to the housing main body 11, a plurality of caps 12 are provided on the entire outer surface of the outer surface side hemisphere member 12a, the inner surface side hemisphere member 12b, and the inner surface side hemisphere member 12b. A projecting portion 12c formed in a hemispherical shape for forming a space between the outer surface of 12b and a closing ring 12d for closing a space between the inner surface of the outer hemispherical member 12a and the outer surface of the inner hemispherical member 12b It consists of.

また、外面側円筒部材１１ａの内周面と内面側円筒部材１１ｂの外周面との間の空間と外面側半球部材１２ａの内面と内面側半球部材１２ｂの外面との間の空間には、それぞれ内部圧力が所定圧力となるように空気が充填されている。外面側円筒部材１１ａの内周面と内面側円筒部材１１ｂの外周面との間の空間内と外面側半球部材１２ａの内面と内面側半球部材１２ｂの外面との間の空間内のそれぞれの圧力は、例えば、密閉型圧縮機の運転時におけるハウジング１０内の圧力と大気圧との中間の圧力とする。   Further, in the space between the inner peripheral surface of the outer surface side cylindrical member 11a and the outer peripheral surface of the inner surface side cylindrical member 11b, and the space between the inner surface of the outer surface side hemispherical member 12a and the outer surface of the inner surface side hemispherical member 12b, respectively. Air is filled so that the internal pressure becomes a predetermined pressure. Respective pressures in the space between the inner peripheral surface of the outer surface side cylindrical member 11a and the outer peripheral surface of the inner surface side cylindrical member 11b, and in the space between the inner surface of the outer surface side hemispherical member 12a and the outer surface of the inner surface side hemispherical member 12b. Is, for example, a pressure intermediate between the pressure in the housing 10 and the atmospheric pressure during operation of the hermetic compressor.

ハウジング本体１０の上端開口を閉鎖するキャップ１２には、圧縮部２０において圧縮した冷媒を吐出するための冷媒吐出管１３が接続されている。また、圧縮部２０の位置するハウジング本体１１の周面には、冷媒を吸入するための冷媒吸入管１４が接続されている。   A refrigerant discharge pipe 13 for discharging the refrigerant compressed in the compression unit 20 is connected to the cap 12 that closes the upper end opening of the housing body 10. A refrigerant suction pipe 14 for sucking refrigerant is connected to the peripheral surface of the housing body 11 where the compression unit 20 is located.

圧縮部２０は、ハウジング本体１１の上部側にハウジング１０内を上下に仕切るように固定された固定スクロール部材２１と、固定スクロール部材２１の下方に設けられ、固定スクロール部材２１に対して旋回可能な旋回スクロール部材２２とを有している。   The compression unit 20 is provided on the upper side of the housing main body 11 so as to partition the interior of the housing 10 up and down, and is provided below the fixed scroll member 21 and is rotatable with respect to the fixed scroll member 21. And a turning scroll member 22.

固定スクロール部材２１は、中心軸を上下に向けて配置された円板状の部材からなり、下面側に渦巻体が設けられている。固定スクロール部材２１の径方向中央部の上面側には、圧縮した冷媒を吐出するための冷媒吐出孔２１ａが設けられている。   The fixed scroll member 21 is made of a disk-like member arranged with its central axis facing up and down, and a spiral body is provided on the lower surface side. A refrigerant discharge hole 21 a for discharging a compressed refrigerant is provided on the upper surface side of the central portion in the radial direction of the fixed scroll member 21.

旋回スクロール部材２２は、固定スクロール部材２１と対向するように設けられた円板状の部材からなり、上面側に渦巻体が設けられている。旋回スクロール部材２２の下面側には、駆動シャフト２３の上端が駆動ブッシュ２２ａを介して連結されている。   The orbiting scroll member 22 is a disk-shaped member provided so as to face the fixed scroll member 21, and a spiral body is provided on the upper surface side. The upper end of the drive shaft 23 is connected to the lower surface side of the orbiting scroll member 22 via a drive bush 22a.

駆動シャフト２３は、回転中心となる中心軸を上下に向けて配置され、駆動ブッシュ２２ａとの連結部２３ａが駆動シャフト２３の回転中心から偏心するように設けられている。また、駆動ブッシュ２２ａは、駆動シャフト２３の連結部２３ａが駆動シャフト２３の中心軸と垂直の方向にスライド可能に設けられている。駆動シャフト２３は、上端側がハウジング１０内を上下に仕切るように設けられた上部フレーム２４に固定された軸受によって回転自在に支持され、下部側がハウジング１０内を上下に仕切るように設けられた下部フレーム２５に固定された軸受によって回転自在に支持されている。駆動シャフト２３は、電動機３０を動力として回転するようになっており、駆動シャフト２３の回転によって旋回スクロール部材２２を所定の円軌道上を旋回させるようになっている。また、駆動シャフト２３は、中心軸に沿って潤滑油流通路２３ｂが設けられ、下端側に連結された油ポンプ２６によって吸引した潤滑油を潤滑油流通路２３ｂに流通させるようになっている。   The drive shaft 23 is arranged with the central axis serving as the rotation center facing up and down, and the connecting portion 23a with the drive bush 22a is provided to be eccentric from the rotation center of the drive shaft 23. The drive bush 22 a is provided so that the connecting portion 23 a of the drive shaft 23 can slide in a direction perpendicular to the central axis of the drive shaft 23. The drive shaft 23 is rotatably supported by a bearing fixed to an upper frame 24 provided at the upper end side so as to partition the inside of the housing 10 up and down, and the lower frame provided at the lower side so as to partition the inside of the housing 10 up and down. It is rotatably supported by a bearing fixed to 25. The drive shaft 23 is rotated by using the electric motor 30 as power, and the orbiting scroll member 22 is rotated on a predetermined circular orbit by the rotation of the drive shaft 23. The drive shaft 23 is provided with a lubricating oil flow passage 23b along the central axis so that the lubricating oil sucked by the oil pump 26 connected to the lower end side is circulated through the lubricating oil flow passage 23b.

ハウジング１０内の固定スクロール部材２１の上方の空間は、仕切部材１５によって固定スクロール部材２１の冷媒吐出孔２１ａ側の空間１５ａと冷媒吐出管１３側の空間１５ｂとに仕切られている。冷媒吐出孔２１ａ側の空間１５ａは、固定スクロール部材２１及び上部フレーム２４に設けられた連通路１６によってハウジング１０内の上部フレーム２４と下部フレーム２５との間の空間１７に連通されている。また、ハウジング１０内の上部フレーム２４と下部フレーム２５との間の空間１７は、固定スクロール部材２１及び上部フレーム２４に設けられた連通路１８によって冷媒吐出管１３側の空間１５ｂに連通されている。更に、ハウジング１０内の下部フレーム２５の下方の空間１９には、ハウジング１０内の各摺動部を潤滑するための潤滑油が貯留されるようになっており、貯留された潤滑油が油ポンプ２６によって駆動シャフト２３の潤滑油流通路２３ｂを流通するようになっている。   A space above the fixed scroll member 21 in the housing 10 is partitioned by a partition member 15 into a space 15 a on the refrigerant discharge hole 21 a side and a space 15 b on the refrigerant discharge pipe 13 side of the fixed scroll member 21. The space 15 a on the refrigerant discharge hole 21 a side is communicated with the space 17 between the upper frame 24 and the lower frame 25 in the housing 10 by the communication path 16 provided in the fixed scroll member 21 and the upper frame 24. A space 17 between the upper frame 24 and the lower frame 25 in the housing 10 is communicated with a space 15 b on the refrigerant discharge pipe 13 side by a communication path 18 provided in the fixed scroll member 21 and the upper frame 24. . Furthermore, in the space 19 below the lower frame 25 in the housing 10, lubricating oil for lubricating each sliding portion in the housing 10 is stored, and the stored lubricating oil is used as an oil pump. 26 circulates through the lubricating oil flow passage 23 b of the drive shaft 23.

電動機３０は、上部フレーム２４と下部フレーム２５との間の空間１７に設けられ、駆動シャフト２３に固定された永久磁石からなるロータ３１と、ロータ３１を囲むように設けられ、ハウジング本体１１に固定されたステータ３２とを有している。ステータ３２は、複数の電磁鋼板をハウジング本体１１の中心軸方向に積層することにより設けられたステータコア３２ａと、ステータコア３２ａに巻き付けられたコイル３２ｂとを有している。   The electric motor 30 is provided in the space 17 between the upper frame 24 and the lower frame 25, is provided with a rotor 31 made of a permanent magnet fixed to the drive shaft 23, and is provided so as to surround the rotor 31, and is fixed to the housing body 11. The stator 32 is provided. The stator 32 has a stator core 32a provided by laminating a plurality of electromagnetic steel plates in the central axis direction of the housing body 11, and a coil 32b wound around the stator core 32a.

以上のように構成された密閉型圧縮機において、電動機３０に通電することにより駆動シャフト２３を回転させると、圧縮部２０において固定スクロール部材２１に対して旋回スクロール部材２２が旋回する。これにより、冷媒吸入管１４からハウジング１０内に流入する冷媒は、圧縮部２０に流入し、固定スクロール部材２１及び旋回スクロール部材２２の各渦巻体の間で圧縮され、冷媒吐出孔２１ａから空間１５ａに吐出される。空間１５ａに吐出された冷媒は、連通路１６を流通して空間１７に流入して電動機３０を冷却し、連通路１８を流通して空間１５ｂに流入して冷媒吐出管１３からハウジング１０外に流出する。また、下部フレーム２５の下方の空間１９に貯留された潤滑油は、油ポンプ２６によって吸引されて駆動シャフト２３の潤滑油流通路２３ｂを流通し、駆動シャフト２３の上端側から流出して各摺動部を潤滑する。   In the hermetic compressor configured as described above, when the drive shaft 23 is rotated by energizing the electric motor 30, the orbiting scroll member 22 rotates with respect to the fixed scroll member 21 in the compression unit 20. As a result, the refrigerant flowing into the housing 10 from the refrigerant suction pipe 14 flows into the compression unit 20 and is compressed between the spiral bodies of the fixed scroll member 21 and the orbiting scroll member 22, and the space 15a from the refrigerant discharge hole 21a. Discharged. The refrigerant discharged into the space 15 a flows through the communication path 16 and flows into the space 17 to cool the electric motor 30, flows through the communication path 18 and flows into the space 15 b, and flows out of the housing 10 from the refrigerant discharge pipe 13. leak. Further, the lubricating oil stored in the space 19 below the lower frame 25 is sucked by the oil pump 26 and flows through the lubricating oil flow passage 23b of the drive shaft 23, flows out from the upper end side of the drive shaft 23, and flows into each slide. Lubricate moving parts.

このように、本実施形態の密閉型圧縮機によれば、ハウジング本体１１が、外面側に設けられた外面側円筒部材１１ａと、内面側に設けられた内面側円筒部材１１ｂとを有し、内面側円筒部材１１ｂの外周面に、外面側円筒部材１１ａの内周面と内面側円筒部材１１ｂの外周面との間に空間を形成するための複数の突起部１１ｃを設けるとともに、キャップ１２が、外面側に設けられた外面側半球部材１２ａと、内面側に設けられた内面側半球部材１２ｂとを有し、内面側半球部材１２ｂの外面側に、外面側半球部材１２ａの内面と内面側半球部材１２ｂの外面との間に空間を形成するための複数の突起部１２ｃを設けたので、ハウジング１０を中空構造とすることにより、ハウジング１０を構成する部材の使用量を低減することができ、耐圧性能を低下させることなく、製造コストの低減を図ることが可能となる。   Thus, according to the hermetic compressor of the present embodiment, the housing body 11 has the outer surface side cylindrical member 11a provided on the outer surface side and the inner surface side cylindrical member 11b provided on the inner surface side, On the outer peripheral surface of the inner surface side cylindrical member 11b, there are provided a plurality of protrusions 11c for forming a space between the inner peripheral surface of the outer surface side cylindrical member 11a and the outer peripheral surface of the inner surface side cylindrical member 11b, and a cap 12 is provided. The outer surface side hemispherical member 12a provided on the outer surface side and the inner surface side hemispherical member 12b provided on the inner surface side have an inner surface and an inner surface side of the outer surface side hemispherical member 12a on the outer surface side of the inner surface side hemispherical member 12b. Since the plurality of protrusions 12c for forming a space with the outer surface of the hemispherical member 12b are provided, the use amount of the members constituting the housing 10 can be reduced by making the housing 10 have a hollow structure. , Resistant Without reducing performance, it is possible to reduce the manufacturing cost.

また、外面側円筒部材１１ａの内周面と内面側円筒部材１１ｂの外周面との間の空間と外面側半球部材１２ａの内面と内面側半球部材１２ｂの外面との間の空間に、所定圧力の空気を封入したので、運転時における内面側円筒部材１１ｂ及び内面側半球部材１２ｂのそれぞれの内面側と外面側との圧力差を小さくすることができ、外面側円筒部材１１、内面側円筒部材１１ｂ、外面側半球部材１２ａ及び内面側半球部材１２ｂの板状部材の板厚を更に小さくすることが可能となる。   Further, a predetermined pressure is applied to the space between the inner peripheral surface of the outer surface side cylindrical member 11a and the outer peripheral surface of the inner surface side cylindrical member 11b, and the space between the inner surface of the outer surface side hemispherical member 12a and the outer surface of the inner surface side hemispherical member 12b. Thus, the pressure difference between the inner surface side and the outer surface side of the inner surface side cylindrical member 11b and the inner surface side hemispherical member 12b during operation can be reduced, and the outer surface side cylindrical member 11 and the inner surface side cylindrical member can be reduced. It is possible to further reduce the plate thickness of the plate-like members of the outer surface side hemispherical member 12a and the inner surface side hemispherical member 12b.

尚、前記実施形態では、内面側円筒部材１１ｂ及び内面側半球部材１２ｂの外面にのみ突起部１１ｃ，１２ｃを設けたものを示したが、外面側円筒部材１１ａ及び外面側半球部材１２ａの内面にのみ突起部を設けるようにしたり、内面側円筒部材１１ｂ及び内面側半球部材１２ｂの外面と外面側円筒部材１１ａ及び外面側半球部材１２ａの内面のそれぞれに突起部を設けるようにしたりしても前記実施形態と同様の効果を得ることが可能となる。   In the above embodiment, the projections 11c and 12c are provided only on the outer surfaces of the inner surface side cylindrical member 11b and the inner surface side hemisphere member 12b. However, the inner surfaces of the outer surface side cylindrical member 11a and the outer surface side hemisphere member 12a are provided. The protrusions may be provided only on the outer surfaces of the inner surface side cylindrical member 11b and the inner surface side hemisphere member 12b and the outer surfaces of the outer surface side cylindrical member 11a and the outer surface side hemisphere member 12a. It is possible to obtain the same effect as the embodiment.

また、前記実施形態では、各突起部１１ｃ，１２ｃを半球状に形成したものを示したが、図４に示すように、各突起部１１ｅを突条に形成するようにしても前記実施形態と同様の効果を得ることが可能となる。   In the above embodiment, the projections 11c and 12c are formed in a hemispherical shape. However, as shown in FIG. 4, even if each projection 11e is formed on a ridge, Similar effects can be obtained.

また、前記実施形態では、外面側円筒部材１１ａの内周面と内面側円筒部材１１ｂの外周面との間の空間と外面側半球部材１２ａの内面と内面側半球部材１２ｂの外面との間の空間に、所定圧力の空気を封入したものを示したが、空気の代わりに、セラミックガラス、耐火材、樹脂バインド材等の充填材を封入するようにしても前記実施形態と同様の効果を得ることが可能となる。   Moreover, in the said embodiment, between the space between the inner peripheral surface of the outer surface side cylindrical member 11a and the outer peripheral surface of the inner surface side cylindrical member 11b, the inner surface of the outer surface side hemisphere member 12a, and the outer surface of the inner surface side hemisphere member 12b. Although the air filled with a predetermined pressure is shown in the space, the same effect as in the above embodiment can be obtained by filling a filler such as ceramic glass, a refractory material, and a resin binding material instead of air. It becomes possible.

本発明の一実施形態を示す密閉型圧縮機の側面断面図Side surface sectional drawing of the hermetic compressor which shows one Embodiment of this invention ハウジング本体の平面断面図Plan sectional view of the housing body 内面側円筒部材の要部斜視図Perspective view of main part of inner cylindrical member その他の突起部を示す内面側円筒部材の要部斜視図The principal part perspective view of the inner surface side cylindrical member which shows another protrusion part

符号の説明Explanation of symbols

１０…ハウジング、１１…ハウジング本体、１１ａ…外面側円筒部材、１１ｂ…内面側円筒部材、１１ｃ…突起部、１２…キャップ、１２ａ…外面側半球部材、１２ｂ…内面側半球部材、１２ｃ…突起部、２０…圧縮部、３０…電動機。   DESCRIPTION OF SYMBOLS 10 ... Housing, 11 ... Housing main body, 11a ... Outer surface side cylindrical member, 11b ... Inner surface side cylindrical member, 11c ... Projection part, 12 ... Cap, 12a ... Outer surface side hemisphere member, 12b ... Inner surface side hemisphere member, 12c ... Projection part , 20 ... compression unit, 30 ... electric motor.

Claims (4)

冷媒を圧縮する圧縮部と圧縮部を駆動する駆動部を内部に収納する密閉容器を備えた密閉型圧縮機において、
前記密閉容器を、外面側に位置する外面側部材と内面側に位置する内面側部材とから構成し、
外面側部材の内面及び内面側部材の外面の少なくとも一方に、外面側部材の内面と内面側部材の外面との間に空間を形成可能な複数の突起部を設けた
ことを特徴とする密閉型圧縮機。 In a hermetic compressor including a hermetic container that houses therein a compressor that compresses the refrigerant and a drive unit that drives the compressor,
The closed container is composed of an outer surface side member located on the outer surface side and an inner surface side member located on the inner surface side,
At least one of the inner surface of the outer surface side member and the outer surface of the inner surface side member is provided with a plurality of protrusions capable of forming a space between the inner surface of the outer surface side member and the outer surface of the inner surface side member. Compressor. 前記外面側部材の内面と内面側部材の外面との間の空間に、所定圧力の気体を封入した
ことを特徴とする請求項１記載の密閉型圧縮機。 The hermetic compressor according to claim 1, wherein a gas having a predetermined pressure is sealed in a space between an inner surface of the outer surface side member and an outer surface of the inner surface side member. 前記外面側部材の内面と内面側部材の外面との間の空間に、充填材を封入した
ことを特徴とする請求項１記載の密閉型圧縮機。 The hermetic compressor according to claim 1, wherein a filler is enclosed in a space between the inner surface of the outer surface side member and the outer surface of the inner surface side member. 前記冷媒として、自然系冷媒を用いた
ことを特徴とする請求項１乃至３の何れか１項記載の密閉型圧縮機。 The hermetic compressor according to any one of claims 1 to 3, wherein a natural refrigerant is used as the refrigerant.
JP2007307283A 2007-11-28 2007-11-28 Hermetic compressor Pending JP2009127616A (en)

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