JP2013181514A - Refrigerant compressor - Google Patents

Refrigerant compressor Download PDF

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JP2013181514A
JP2013181514A JP2012047584A JP2012047584A JP2013181514A JP 2013181514 A JP2013181514 A JP 2013181514A JP 2012047584 A JP2012047584 A JP 2012047584A JP 2012047584 A JP2012047584 A JP 2012047584A JP 2013181514 A JP2013181514 A JP 2013181514A
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pin
hole
refrigerant
refrigerant compressor
terminal
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JP5916440B2 (en
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Yuki Tamura
裕貴 田村
Takashi Ishigaki
隆士 石垣
Shuhei Koyama
修平 小山
Kenji Yano
賢司 矢野
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

PROBLEM TO BE SOLVED: To obtain a refrigerant compressor having a sealing terminal that can prevent the fall-out of a pin and suppress rapid refrigerant blowout when an insulation fixing part is broken.SOLUTION: A sealing terminal 60 includes: a metal body 61 that is fixed to a sealing terminal connection hole 40b provided on a wall surface of a sealing container 40; a conductive pin 62 that is insulated and fixed to a through-hole 61a of the body 61 while one end side of the conductive pin protrudes to the inside of the sealing container 40 and the other end side of the conductive pin protrudes to the outside of the sealing container 40; a glass seal 63 that fixes the through-hole 61a of the body 61 and the pin 62 so that they are insulated; a fall-out prevention part 64 that is provided on one end of the pin 62 for preventing the pin 62 from falling out from the sealing container 40 when the gas seal 63 is broken; and a refrigerant path 65 that forms a communication path connecting the inside and outside of the sealing container 40 along with the through-hole 61a while the glass seal 63 is broken, the fall-out prevention part 64 of the pin 62 contacts an opening end surface 61b of the through-hole 61a by an internal pressure in the sealing container 40 and the fall-out of the pin is prevented.

Description

本発明は、冷媒圧縮機に関するものである。   The present invention relates to a refrigerant compressor.

従来より、密閉容器内に、固定子及び回転子を有する電動機部と、冷媒を圧縮する圧縮機構部と、電動機部の回転力を圧縮機構部に伝達する主軸とを備えた冷媒圧縮機がある。この種の冷媒圧縮機には、密閉容器外から電動機部の回転子に電源を供給する密封端子が密閉容器を貫通して設けられている(例えば、特許文献1、特許文献2参照)。   2. Description of the Related Art Conventionally, there is a refrigerant compressor provided with an electric motor portion having a stator and a rotor, a compression mechanism portion that compresses refrigerant, and a main shaft that transmits the rotational force of the electric motor portion to the compression mechanism portion in a sealed container. . In this type of refrigerant compressor, a sealed terminal for supplying power from outside the sealed container to the rotor of the electric motor unit is provided through the sealed container (see, for example, Patent Document 1 and Patent Document 2).

特開平10−318173号公報(第3頁、図1)JP-A-10-318173 (page 3, FIG. 1) 特開2003−148344号公報(第4頁、図1)JP 2003-148344 A (page 4, FIG. 1)

この種の冷媒圧縮機では、短絡等により密封端子に大電流が流れた場合や、密閉容器内(以下、機内という)が異常高圧になった場合に、密封端子の一部である導電性のピンを固定している絶縁固定部が破損することがある。このように絶縁固定部が破損すると、ピンが機内の冷媒の圧力で押されて密閉容器外(以下、機外という)に吹き飛ぶ(以下、この現象を、ピン飛びという)ことがある。   In this type of refrigerant compressor, when a large current flows through the sealed terminal due to a short circuit or the like, or when the inside of the sealed container (hereinafter referred to as the inside of the machine) becomes an abnormally high pressure, the conductive compressor that is part of the sealed terminal is used. The insulation fixing part that fixes the pin may be damaged. When the insulating fixing portion is broken in this way, the pin may be pushed by the pressure of the refrigerant in the machine and blown out of the sealed container (hereinafter referred to as the outside of the machine) (hereinafter, this phenomenon is referred to as pin jump).

使用冷媒が使用圧力の比較的低い冷媒の場合は、ピン飛び時の威力は小さいが、CO2 といった使用圧力が特に高い自然冷媒の場合は、ピン飛びの威力が大きい。このため、飛んだピンによって冷媒圧縮機外の他の構造部分が損傷を受けることのないよう、何らかの対策を施す必要があるが、特許文献1及び特許文献2では、この点について何ら考慮されていない。 When the refrigerant used has a relatively low working pressure, the power at the time of pin jump is small, but when natural refrigerant such as CO 2 has a particularly high working pressure, the power at the pin jump is large. For this reason, it is necessary to take some measures so that other structural parts outside the refrigerant compressor are not damaged by the blown pins. However, in Patent Document 1 and Patent Document 2, no consideration is given to this point. Absent.

ピン飛びに対する対策としては、飛んだピンの威力に耐えうる強度の金属製カバーを、ピンを機外側から覆うようにして取り付ける対策が考えられる。しかしながら、このようにピンが飛ぶことを前提とした対策では、部品コストがアップしたり、製造効率の悪化を招いたりなどの不都合な面も多く、改善策が望まれている。   As a countermeasure against the jumping of the pin, a countermeasure can be considered in which a metal cover having a strength that can withstand the power of the jumped pin is attached so as to cover the pin from the outside. However, the countermeasures based on the assumption that the pins fly in this way have many inconvenient aspects such as an increase in component costs and a decrease in manufacturing efficiency, and improvement measures are desired.

また、ピンが飛ぶことにより、ピンが設けられていた部分で密閉容器の内外が連通するため、その連通箇所から非常に高圧な自然冷媒が急激に密閉容器外に噴出されるといった課題もあった。   Moreover, since the inside and outside of the sealed container communicate with each other at the portion where the pin was provided due to the flying of the pin, there was a problem that a very high-pressure natural refrigerant was suddenly ejected from the communicating part to the outside of the sealed container. .

本発明は、上記のような課題を解決するためになされたもので、絶縁固定部破損時のピン飛びの防止と急激な冷媒噴出の抑制が可能な密封端子を有する冷媒圧縮機を得ることを目的とする。   The present invention has been made in order to solve the above-described problems, and it is an object of the present invention to obtain a refrigerant compressor having a sealed terminal capable of preventing pin jump at the time of breakage of an insulating fixing portion and suppressing rapid jet of refrigerant. Objective.

本発明に係る冷媒圧縮機は、電動機部と、電動機部によって駆動されて冷媒を圧縮する圧縮機構部と、電動機部及び圧縮機構部を収容する密閉容器と、密閉容器の壁面を貫通して設けられ、密閉容器の外から電動機部に電源を供給するための密封端子とを備え、密封端子は、密閉容器の壁面に設けた密封端子接続孔に固定された金属製のボディと、一端側が密閉容器の内部に突き出し、他端側が密閉容器の外部に突き出した状態でボディの貫通孔に絶縁固定された少なくとも一本の導電性のピンと、ボディの貫通孔とピンとを絶縁固定する絶縁固定部と、ピンの一端側に設けられ、絶縁固定部が破損した場合の、ピンの密閉容器外への抜けを防止する抜け防止部と、絶縁固定部が破損して、密閉容器内の内圧によりピンの抜け防止部が貫通孔の開口端面に当接して抜けが防止された状態において、貫通孔と共に密閉容器の内外を連通させる連通路を形成する冷媒通路とを備えたものである。   The refrigerant compressor according to the present invention is provided with an electric motor unit, a compression mechanism unit that is driven by the electric motor unit to compress the refrigerant, a sealed container that houses the electric motor unit and the compression mechanism unit, and a wall surface of the sealed container. A sealing terminal for supplying power to the electric motor part from the outside of the sealed container, the sealing terminal being a metal body fixed to the sealing terminal connection hole provided on the wall surface of the sealed container, and one end side being sealed At least one conductive pin that is insulatively fixed to the through hole of the body with the other end protruding to the outside of the sealed container, and an insulating fixing part that insulates and fixes the through hole and the pin of the body; The pin is provided at one end of the pin and prevents the pin from coming out of the sealed container when the insulation fixing part is damaged, and the insulation fixing part is damaged by the internal pressure inside the sealed container. The escape prevention part is a through hole The opening end surface in the abutting state missing is prevented, in which a refrigerant passage to form a communication passage for communicating the inside and outside of the sealed container together with the through-hole.

本発明によれば、絶縁固定部が破損しても、ピンが密閉容器から抜け出さず、且つ、密閉容器内外の連通箇所から冷媒が急激に噴出されることを抑制可能な密封端子を有する冷媒圧縮機を得ることができる。   According to the present invention, even if the insulation fixing portion is broken, the pin does not come out of the sealed container, and the refrigerant compression having the sealed terminal capable of suppressing the rapid ejection of the refrigerant from the inside and outside of the sealed container. You can get a chance.

本発明の実施の形態1に係る冷媒圧縮機の縦断面図である。It is a longitudinal cross-sectional view of the refrigerant compressor which concerns on Embodiment 1 of this invention. 図1の密封端子部分を含む要部概略縦断面図である。It is a principal part schematic longitudinal cross-sectional view containing the sealing terminal part of FIG. 図1の密封端子を機外から見た概略斜視図である。It is the schematic perspective view which looked at the sealing terminal of FIG. 1 from the outside of the apparatus. 図1の密封端子を機内から見た概略斜視図である。It is the schematic perspective view which looked at the sealing terminal of FIG. 1 from the inside of an apparatus. 図1の密封端子のピンの斜視図である。It is a perspective view of the pin of the sealing terminal of FIG. 本発明の実施の形態1に係る冷媒圧縮機の密封端子の動作説明図である。It is operation | movement explanatory drawing of the sealing terminal of the refrigerant compressor which concerns on Embodiment 1 of this invention. 本発明の実施の形態2に係る冷媒圧縮機の密封端子の動作説明図である。It is operation | movement explanatory drawing of the sealing terminal of the refrigerant compressor which concerns on Embodiment 2 of this invention. 本発明の実施の形態3に係る冷媒圧縮機の密封端子の動作説明図である。It is operation | movement explanatory drawing of the sealing terminal of the refrigerant compressor which concerns on Embodiment 3 of this invention. 本発明の実施の形態4に係る冷媒圧縮機の密封端子の動作説明図である。It is operation | movement explanatory drawing of the sealing terminal of the refrigerant compressor which concerns on Embodiment 4 of this invention. 図1の密封端子の他の変形例1の動作説明図である。It is operation | movement explanatory drawing of the other modification 1 of the sealing terminal of FIG. 図1の密封端子の他の変形例2を示す図である。It is a figure which shows the other modification 2 of the sealing terminal of FIG. 図1の密封端子の他の変形例3を示す図である。It is a figure which shows the other modification 3 of the sealing terminal of FIG.

以下、本発明の実施の形態を図面に基づいて説明する。
実施の形態1.
図1は、本発明の実施の形態1に係る冷媒圧縮機の縦断面図である。図1及び後述の各図において、同一の符号を付したものは、同一の又はこれに相当するものであり、これは明細書の全文において共通している。更に、明細書全文に表れている構成要素の形態は、あくまで例示であってこれらの記載に限定されるものではない。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a longitudinal sectional view of a refrigerant compressor according to Embodiment 1 of the present invention. In FIG. 1 and each figure to be described later, the same reference numerals denote the same or equivalent parts, which are common throughout the entire specification. Furthermore, the forms of the constituent elements appearing in the entire specification are merely examples and are not limited to these descriptions.

冷媒圧縮機1は、固定子11及び回転子12を有する電動機部10と、外部より冷媒を吸入して圧縮する圧縮機構部20と、この電動機部10と圧縮機構部20とを連結し、電動機部10の発生する回転力を圧縮機構部20に伝達する主軸30とを有し、これらが密閉容器40内に収容された構成を有している。主軸30の下端部には、油ポンプ31が設けられ、密閉容器40の底部に溜まった潤滑油41を吸い上げ、主軸30内を通して主軸30及び圧縮機構部20の各摺動部に供給する。   The refrigerant compressor 1 connects an electric motor unit 10 having a stator 11 and a rotor 12, a compression mechanism unit 20 that sucks and compresses refrigerant from the outside, and the electric motor unit 10 and the compression mechanism unit 20. The main shaft 30 that transmits the rotational force generated by the portion 10 to the compression mechanism portion 20 is included, and these are housed in a sealed container 40. An oil pump 31 is provided at the lower end of the main shaft 30 to suck up the lubricating oil 41 accumulated at the bottom of the sealed container 40 and supply it to the sliding portions of the main shaft 30 and the compression mechanism section 20 through the main shaft 30.

圧縮機構部20は、固定スクロール21と揺動スクロール22とを備えており、互いの対向面にはそれぞれ渦巻歯21a、22aが設けられている。この渦巻歯21a、22aが互いに摺動可能に噛み合わされて、冷媒を圧縮する圧縮室を構成している。   The compression mechanism unit 20 includes a fixed scroll 21 and an orbiting scroll 22, and spiral teeth 21 a and 22 a are respectively provided on opposing surfaces. The spiral teeth 21a and 22a are slidably engaged with each other to constitute a compression chamber for compressing the refrigerant.

圧縮機構部20は、吸入管42より取り込まれた低圧の冷媒ガスを、電動機部10から主軸30を介して与えられる回転を利用して圧縮し、高圧状態として吐出口21bから吐出弁21cに抗して吐出し、吐出管43から機外へ排出する。密閉容器40の壁面40aには、壁面40aを貫通して密封端子60が取り付けられており、この密封端子60により、電動機部10は機外から電源の供給を受けている。   The compression mechanism unit 20 compresses the low-pressure refrigerant gas taken in from the suction pipe 42 using the rotation given from the electric motor unit 10 through the main shaft 30, and resists the discharge valve 21c from the discharge port 21b as a high pressure state. And discharged from the discharge pipe 43 to the outside of the apparatus. A sealed terminal 60 is attached to the wall surface 40a of the sealed container 40 through the wall surface 40a, and the electric motor unit 10 is supplied with power from outside the machine.

以下、密封端子60について更に詳細に説明する。図2は、図1の密封端子部分を含む要部概略縦断面図である。図3は、図1の密封端子を機外から見た概略斜視図である。図4は、図1の密封端子を機内から見た概略斜視図である。図5は、図1の密封端子のピンの斜視図である。   Hereinafter, the sealing terminal 60 will be described in more detail. FIG. 2 is a schematic vertical sectional view of a main part including the sealed terminal portion of FIG. FIG. 3 is a schematic perspective view of the sealed terminal of FIG. 1 viewed from outside the apparatus. FIG. 4 is a schematic perspective view of the sealed terminal of FIG. 1 as seen from inside the machine. FIG. 5 is a perspective view of a pin of the sealed terminal of FIG.

密封端子60は、金属製のボディ61と、3本の導電性のピン62と、絶縁固定部としてのガラスシール63と、を備えている。ボディ61は、密閉容器40の壁面40aに設けた密封端子接続孔40b(図2参照)を貫通して溶接されている。また、ピン62は、ボディ61に設けた貫通孔61aに通され、一端側が密閉容器40の内部に突き出し、他端側が密閉容器40の外部に突き出した状態で、ガラスシール63により電気的にボディ61と絶縁されて貫通孔61aに固定されている。   The sealing terminal 60 includes a metal body 61, three conductive pins 62, and a glass seal 63 as an insulating fixing portion. The body 61 is welded through a sealed terminal connection hole 40b (see FIG. 2) provided in the wall surface 40a of the sealed container 40. The pin 62 is passed through a through hole 61 a provided in the body 61, and is electrically connected to the body by the glass seal 63 with one end protruding into the sealed container 40 and the other end protruding out of the sealed container 40. It is insulated from 61 and fixed to the through hole 61a.

ピン62において機内に突き出した部分には、導電的に固定されたタブ端子70が設けらており、このタブ端子70に、電動機部10の固定子11のリード線71が接続されている。ピン62において機外に突き出した部分にも同様に、導電的に固定されたタブ端子72が設けらており、このタブ端子72に外部の電源からの配線73が接続されている。これにより、電動機部10が機外で電源に接続される。なお、ここでは、電動機部10を3相の電源に接続することから、ピン62が3本設けられているが、密封端子60におけるピン62の数は3本に限定するものではない。   A portion of the pin 62 protruding into the machine is provided with a tab terminal 70 which is conductively fixed, and the lead wire 71 of the stator 11 of the motor unit 10 is connected to the tab terminal 70. Similarly, a tab terminal 72 that is electrically conductively fixed is provided at a portion of the pin 62 protruding outside the machine, and a wiring 73 from an external power source is connected to the tab terminal 72. Thereby, the electric motor part 10 is connected to a power supply outside the apparatus. Here, three pins 62 are provided because the motor unit 10 is connected to a three-phase power source, but the number of pins 62 in the sealing terminal 60 is not limited to three.

密封端子60において機外に露出した部分は、端子箱74と、端子箱74の開口を覆う端子箱カバー75とにより囲われている。端子箱74と端子箱カバー75は、機外に露出する密封端子60の充電部を水滴や塵、埃から保護する機能を持つ。端子箱カバー75は、端子箱74の開口周囲に嵌合することによって端子箱74に固定されている。   A portion of the sealed terminal 60 exposed outside the machine is surrounded by a terminal box 74 and a terminal box cover 75 that covers the opening of the terminal box 74. The terminal box 74 and the terminal box cover 75 have a function of protecting the charging portion of the sealed terminal 60 exposed outside the apparatus from water droplets, dust, and dust. The terminal box cover 75 is fixed to the terminal box 74 by fitting around the opening of the terminal box 74.

次に、本実施の形態1の特徴部分の構成について説明する。
密封端子60のピン62において機内側に突出した部分は、ボディ61の貫通孔61aよりも大径に構成された円柱状の抜け防止部64を有している。ピン62は、抜け防止部64がボディ61から絶縁距離だけ離れるようにして貫通孔61aに絶縁固定されている。また、抜け防止部64は、短絡等により密封端子60に大電流が流れた場合や、機内が異常高圧になった場合等の所定の事象が生じてガラスシール63が破損した際に、機内の冷媒を機外へ排出する冷媒通路65を有している。
Next, the structure of the characteristic part of this Embodiment 1 is demonstrated.
The portion of the pin 62 of the sealing terminal 60 that protrudes to the inside of the machine has a columnar drop prevention portion 64 that has a larger diameter than the through hole 61 a of the body 61. The pin 62 is insulated and fixed to the through hole 61a so that the removal preventing portion 64 is separated from the body 61 by an insulation distance. Further, the drop prevention unit 64 is used when a predetermined event such as when a large current flows through the sealed terminal 60 due to a short circuit or when the inside of the machine becomes abnormally high pressure occurs and the glass seal 63 is broken. A refrigerant passage 65 for discharging the refrigerant out of the apparatus is provided.

冷媒通路65は、ここでは、抜け防止部64において貫通孔61a側の端面に設けた複数の溝(図5参照)で構成されている。溝65は、ピン62の軸中心を中心として放射状に設けられている。溝65は、ここでは放射状に複数設けた構成としたが、その形状や数は任意であり、冷媒通路としての機能を果たすように形成されていればよい。また、溝65の断面形状や断面積についても同様で、冷媒通路としての機能を果たすように形成されていればよく、例えば四角形や三角形状の断面形状としてもよい。この点は、後述の実施の形態においても同様である。   Here, the refrigerant passage 65 is composed of a plurality of grooves (see FIG. 5) provided in the end face on the through hole 61 a side in the escape preventing portion 64. The grooves 65 are provided radially about the axial center of the pin 62. Here, a plurality of the grooves 65 are provided radially, but the shape and number thereof are arbitrary, and the grooves 65 may be formed so as to function as a refrigerant passage. The same applies to the cross-sectional shape and cross-sectional area of the groove 65 as long as it is formed so as to function as a refrigerant passage. For example, the cross-sectional shape may be a square or a triangle. This also applies to the embodiments described later.

図6は、本発明の実施の形態1に係る冷媒圧縮機の密封端子の動作説明図で、図6(a)は、通常状態の密封端子、図6(b)は、ガラスシール破損時の密封端子、の一部拡大断面を示している。また、図6(b)において点線矢印は冷媒の流れを示している。
図6(a)に示すように、通常状態では、機内側においてピン62の抜け防止部64が、ボディ61から離れた状態となっている。
6A and 6B are operation explanatory diagrams of the sealed terminal of the refrigerant compressor according to Embodiment 1 of the present invention. FIG. 6A shows a sealed terminal in a normal state, and FIG. 6B shows when the glass seal is broken. The partial expanded cross section of the sealing terminal is shown. In FIG. 6B, the dotted arrow indicates the flow of the refrigerant.
As shown in FIG. 6A, in the normal state, the slip-off prevention portion 64 of the pin 62 is separated from the body 61 on the inner side.

そして、所定の事象が生じた場合、図6(b)に示すように、ガラスシール63が破損し(図6(b)には、ガラスシール63が、破損により貫通孔61aから完全に無くなった状態を示している)、ピン62と貫通孔61aとの絶縁固定が解消される。このため、ピン62が、機内の内圧によりボディ61側に押しやられる。このとき、ピン62の抜け防止部64が、ボディ61に当接(貫通孔61aの開口端面61b(図6(a)参照)に当接)して止まり、ピン62が貫通孔61aから抜けて機外に吹き飛ぶことが阻止される。   When a predetermined event occurs, the glass seal 63 is broken as shown in FIG. 6B (in FIG. 6B, the glass seal 63 is completely removed from the through hole 61a due to the breakage. Insulating fixation between the pin 62 and the through hole 61a is canceled. For this reason, the pin 62 is pushed to the body 61 side by the internal pressure in the machine. At this time, the prevention portion 64 of the pin 62 comes into contact with the body 61 (contacts with the opening end surface 61b of the through hole 61a (see FIG. 6A)) and stops, and the pin 62 comes out of the through hole 61a. Blowing off the machine is prevented.

そして、ピン62の抜け防止部64とボディ61とが密接した部分には、抜け防止部64に設けた冷媒通路65とガラスシール63の破損により再び貫通した貫通孔61aとによって、機内外を連通する連通路が形成される。この連通路は、貫通孔61aをいわば一部塞いで流量を制限した冷媒流出流路となるため、この冷媒流出流路を介して機内の高圧の冷媒が緩やかに機外に流出する。   In addition, the portion of the pin 62 where the drop prevention portion 64 and the body 61 are in close contact with each other is communicated between the inside and outside of the machine by the refrigerant passage 65 provided in the drop prevention portion 64 and the through-hole 61a that penetrates again due to breakage of the glass seal 63. A communicating path is formed. Since this communication path becomes a refrigerant outflow passage whose flow rate is limited by partially blocking the through-hole 61a, the high-pressure refrigerant in the apparatus slowly flows out of the apparatus through the refrigerant outflow passage.

以上のように、本実施の形態1では、ピン62において機内側に突出した部分に、ピン62が固定される貫通孔61aよりも大径の抜け防止部64を設けた。これにより、ガラスシール破損時にピン62の抜け防止部64がボディ61に当接してストッパーの役割を成し、ピン62が機外に飛び出さないという効果が得られる。   As described above, in the first embodiment, the portion 62 that protrudes inward from the pin 62 is provided with the drop prevention portion 64 having a larger diameter than the through hole 61a to which the pin 62 is fixed. As a result, when the glass seal is broken, the pin 62 slip-off preventing portion 64 abuts on the body 61 to act as a stopper, and the pin 62 does not jump out of the machine.

また、ピン62の抜け防止部64において、ガラスシール破損時にボディ61と密接する部分に溝(冷媒通路)65を設けたので、ガラスシール63が破損してピン62がボディ61に当接した状態において、流量を制限した冷媒流出流路を確保できる。よって、この冷媒流出流路を介して機内の高圧の冷媒を緩やかに流出させることができ、急激な冷媒噴出を防ぐ効果が得られる。その結果、機外に損傷を与えない安全性の高い冷媒圧縮機を得ることができる。   Further, since the groove (refrigerant passage) 65 is provided in a portion that comes into close contact with the body 61 when the glass seal is broken, the pin 62 is in contact with the body 61 because the glass seal 63 is broken. Thus, it is possible to secure a refrigerant outflow passage with a limited flow rate. Therefore, the high-pressure refrigerant in the machine can be gently discharged through the refrigerant outflow channel, and an effect of preventing abrupt refrigerant ejection can be obtained. As a result, a highly safe refrigerant compressor that does not damage outside the machine can be obtained.

また、ピン62が機外に飛ばない構成としたので、端子箱74及び端子箱カバー75に対し、飛んだピンをいわば捕獲する役割を持たせる必要がない。このため、端子箱74及び端子箱カバー75の必要強度を低く抑えることができ、部品コストを低減できる。また、同様の理由から、端子箱カバー75の端子箱74への取り付け方法についても、ネジ留め式等の強固な手段とする必要がなく、嵌め込み式などの簡易な手段とすることができる。よって、部品点数の削減と更なる部品コスト低減、製造効率の向上といった効果が期待できる。   In addition, since the pin 62 is configured not to fly out of the machine, it is not necessary for the terminal box 74 and the terminal box cover 75 to have a role of capturing the jumped pins. For this reason, the required strength of the terminal box 74 and the terminal box cover 75 can be kept low, and the component cost can be reduced. For the same reason, the terminal box cover 75 can be attached to the terminal box 74 by a simple means such as a fitting type without having to be a strong means such as a screwing type. Therefore, effects such as a reduction in the number of parts, further cost reduction of parts, and improvement of manufacturing efficiency can be expected.

以上から、本実施の形態1の密封端子60は、自然冷媒(CO2 )のように使用圧力が高い冷媒を使用する冷媒圧縮機に用いて特に効果的であり、安全性の向上、製造効率の向上、部品点数の削減、更なる部品コスト低減を実現可能な冷媒圧縮機を構成できる。 From the above, the sealed terminal 60 of the first embodiment is particularly effective when used for a refrigerant compressor that uses a refrigerant having a high working pressure, such as natural refrigerant (CO 2 ), and improves safety and manufacturing efficiency. It is possible to configure a refrigerant compressor that can realize an improvement in the number of parts, a reduction in the number of parts, and a further reduction in parts costs.

実施の形態2.
実施の形態2は、密封端子60の抜け防止部64の構造が実施の形態1と一部異なり、その他の構造については図1〜図6に示した実施の形態1と同様である。以下、実施の形態2が実施の形態1と異なる部分を中心に説明する。なお、実施の形態1と同様の構成部分について適用される変形例は、本実施の形態2についても同様に適用される。この点は後述の実施の形態でも同様である。
Embodiment 2. FIG.
The second embodiment is partially different from the first embodiment in the structure of the drop prevention portion 64 of the sealing terminal 60, and the other structure is the same as that of the first embodiment shown in FIGS. In the following, the second embodiment will be described focusing on the differences from the first embodiment. Note that the modification applied to the same components as those in the first embodiment is similarly applied to the second embodiment. This also applies to the embodiments described later.

図7は、本発明の実施の形態2に係る冷媒圧縮機の密封端子の動作説明図で、図7(a)は、通常状態の密封端子、図7(b)は、ガラスシール破損時の密封端子、の一部拡大断面を示している。また、図7(b)において点線矢印は冷媒の流れを示している。
実施の形態1では、密封端子60におけるピン62の抜け防止部64全体を円柱状に形成していたが、実施の形態2では、抜け防止部64におけるボディ61側を先細り形状、ここでは略円錐状に形成したものである。そして、その略円錐状部分に、実施の形態1と同様に冷媒通路(溝)65が形成されている。
FIG. 7 is an operation explanatory view of the sealing terminal of the refrigerant compressor according to Embodiment 2 of the present invention, FIG. 7 (a) is a normal state sealing terminal, and FIG. 7 (b) is when the glass seal is broken. The partial expanded cross section of the sealing terminal is shown. In FIG. 7B, the dotted arrow indicates the refrigerant flow.
In the first embodiment, the entire prevention portion 64 of the pin 62 in the sealed terminal 60 is formed in a columnar shape. However, in the second embodiment, the body 61 side of the prevention portion 64 is tapered, in this case, a substantially conical shape. It is formed in a shape. A refrigerant passage (groove) 65 is formed in the substantially conical portion as in the first embodiment.

このように構成された密封端子60は、実施の形態1と同様、図7(a)に示すように、通常状態では、機内側においてピン62の抜け防止部64が、ボディ61から離れた状態となっている。   In the normal state, the sealing terminal 60 configured in this manner is in a state in which the pin 62 prevention portion 64 is separated from the body 61 on the inner side as shown in FIG. It has become.

そして、所定の事象が生じた場合、図7(b)に示すように、ガラスシール63が破損し(図7(b)には、ガラスシール63が、破損により貫通孔61aから完全に無くなった状態を示している)、ピン62と貫通孔61aとの絶縁固定が解消される。このため、ピン62が、機内の内圧によりボディ61側に押しやられる。このとき、ピン62の抜け防止部64がボディ61に当接(貫通孔61aの開口端面61b(図7(a)参照)に当接)して止まり、ピン62が貫通孔61aから抜けて機外に吹き飛ぶことが阻止される。   When a predetermined event occurs, the glass seal 63 is broken as shown in FIG. 7B (in FIG. 7B, the glass seal 63 is completely removed from the through hole 61a due to breakage. Insulating fixation between the pin 62 and the through hole 61a is canceled. For this reason, the pin 62 is pushed to the body 61 side by the internal pressure in the machine. At this time, the prevention part 64 of the pin 62 comes into contact with the body 61 (contacts with the opening end surface 61b of the through hole 61a (see FIG. 7A)) and stops, and the pin 62 comes out of the through hole 61a and stops. Blowing out is prevented.

ここで、実施の形態2では、抜け防止部64のボディ61側を略円錐状としたことで、その略円錐状部分が貫通孔61aに嵌り込む。よって、実施の形態1のように抜け防止部64においてボディ61との密接部分を平面状とした場合と比べて、ピン62の姿勢を安定した状態に保つことができるという効果が得られる。   Here, in the second embodiment, the body 61 side of the removal preventing portion 64 is formed in a substantially conical shape, so that the substantially conical portion is fitted into the through hole 61a. Therefore, compared to the case where the close contact portion with the body 61 is flat in the drop prevention portion 64 as in the first embodiment, an effect that the posture of the pin 62 can be kept stable is obtained.

そして、ピン62の抜け防止部64とボディ61とが密接した部分には、抜け防止部64に設けた冷媒通路65とガラスシール63の破損により再び貫通した貫通孔61aとによって、機内外を連通する連通路が形成される。この連通路は、貫通孔61aをいわば一部塞いで流量を制限した冷媒流出流路となるため、この冷媒流出流路を介して機内の高圧の冷媒が緩やかに機外に流出する。   In addition, the portion of the pin 62 where the drop prevention portion 64 and the body 61 are in close contact with each other is communicated between the inside and outside of the machine by the refrigerant passage 65 provided in the drop prevention portion 64 and the through-hole 61a that penetrates again due to breakage of the glass seal 63. A communicating path is formed. Since this communication path becomes a refrigerant outflow passage whose flow rate is limited by partially blocking the through-hole 61a, the high-pressure refrigerant in the apparatus slowly flows out of the apparatus through the refrigerant outflow passage.

以上説明したように、本実施の形態2によれば、実施の形態1と同様の効果が得られると共に、抜け防止部64のボディ61側を先細り形状(略円錐状)としたことで、実施の形態1のように抜け防止部64のボディ61側を平面状にした場合よりも、ガラスシール破損時のピン62の姿勢を安定した状態に保つことができるという効果が得られる。   As described above, according to the second embodiment, the same effect as that of the first embodiment can be obtained, and the body 61 side of the slip-out preventing portion 64 is tapered (substantially conical). Compared to the case where the body 61 side of the drop prevention part 64 is made flat as in the first embodiment, an effect that the posture of the pin 62 when the glass seal is broken can be maintained in a stable state is obtained.

実施の形態3.
実施の形態3は、密封端子60のボディ61の構造が実施の形態1と一部異なり、その他の構造については図1〜図6に示した実施の形態1と同様である。以下、実施の形態3が実施の形態1と異なる部分を中心に説明する。
Embodiment 3 FIG.
The third embodiment is partially different from the first embodiment in the structure of the body 61 of the sealed terminal 60, and the other structures are the same as those in the first embodiment shown in FIGS. In the following, the third embodiment will be described focusing on the differences from the first embodiment.

図8は、本発明の実施の形態3に係る冷媒圧縮機の密封端子の動作説明図で、図8(a)は、通常状態の密封端子、図8(b)は、ガラスシール破損時の密封端子、の一部拡大断面を示している。また、図8(b)において点線矢印は冷媒の流れを示している。
実施の形態1では、密封端子60のピン62側に冷媒通路65を形成していたが、実施の形態3では、ボディ61側に冷媒通路65を形成したものである。この冷媒通路65は、ボディ61の機内側の表面に設けた溝で形成され、溝65の一部がガラスシール63に達するように形成されている。このように形成することで、ガラスシール63が破損した際、その破損部分と溝65とが連通し、機内と機外とが連通して冷媒流出流路を形成することができる。
FIG. 8 is an operation explanatory view of the sealing terminal of the refrigerant compressor according to Embodiment 3 of the present invention, FIG. 8 (a) is a normal state sealing terminal, and FIG. 8 (b) is when the glass seal is broken. The partial expanded cross section of the sealing terminal is shown. Moreover, the dotted line arrow in FIG.8 (b) has shown the flow of the refrigerant | coolant.
In the first embodiment, the refrigerant passage 65 is formed on the pin 62 side of the sealing terminal 60, but in the third embodiment, the refrigerant passage 65 is formed on the body 61 side. The refrigerant passage 65 is formed by a groove provided on the machine-inside surface of the body 61, and a part of the groove 65 is formed so as to reach the glass seal 63. By forming in this way, when the glass seal 63 is broken, the broken portion and the groove 65 communicate with each other, and the inside and outside of the machine communicate with each other to form a refrigerant outflow passage.

このように構成された密封端子60は、実施の形態1と同様、図8(a)に示すように、通常状態では、機内側においてピン62の抜け防止部64が、ボディ61から離れた状態となっている。   In the normal state, the sealing terminal 60 configured in this manner is in a state in which the pin 62 prevention portion 64 is separated from the body 61 on the inside of the machine, as shown in FIG. It has become.

そして、所定の事象が生じた場合、図8(b)に示すように、ガラスシール63が破損し(図8(b)には、ガラスシール63が、破損により貫通孔61aから完全に無くなった状態を示している)、ピン62と貫通孔61aとの絶縁固定が解消される。このため、ピン62が、機内の内圧によりボディ61側に押しやられる。このとき、ピン62の抜け防止部64がボディ61に当接(貫通孔61aの開口端面61b(図8(a)参照)に当接)して止まり、ピン62が貫通孔61aから抜けて機外に吹き飛ぶことが阻止される。   When a predetermined event occurs, the glass seal 63 is broken as shown in FIG. 8B (in FIG. 8B, the glass seal 63 is completely removed from the through hole 61a due to breakage. Insulating fixation between the pin 62 and the through hole 61a is canceled. For this reason, the pin 62 is pushed to the body 61 side by the internal pressure in the machine. At this time, the prevention portion 64 of the pin 62 comes into contact with the body 61 (contacts with the opening end surface 61b of the through hole 61a (see FIG. 8A)) and stops, and the pin 62 comes out of the through hole 61a and stops. Blowing out is prevented.

そして、ピン62の抜け防止部64とボディ61とが密接した部分には、抜け防止部64に設けた冷媒通路65とガラスシール63の破損により再び貫通した貫通孔61aとによって、機内外を連通する連通路が形成される。この連通路は、貫通孔61aをいわば一部塞いで流量を制限した冷媒流出流路となるため、この冷媒流出流路を介して機内の高圧の冷媒が緩やかに機外に流出する。   In addition, the portion of the pin 62 where the drop prevention portion 64 and the body 61 are in close contact with each other is communicated between the inside and outside of the machine by the refrigerant passage 65 provided in the drop prevention portion 64 and the through-hole 61a that penetrates again due to breakage of the glass seal 63. A communicating path is formed. Since this communication path becomes a refrigerant outflow passage whose flow rate is limited by partially blocking the through-hole 61a, the high-pressure refrigerant in the apparatus slowly flows out of the apparatus through the refrigerant outflow passage.

以上説明したように、本実施の形態3によれば、実施の形態1と同様の効果を得ることができる。   As described above, according to the third embodiment, the same effect as in the first embodiment can be obtained.

実施の形態4.
実施の形態4は、実施の形態2を基本とした変形例に相当する。
Embodiment 4 FIG.
The fourth embodiment corresponds to a modification based on the second embodiment.

図9は、本発明の実施の形態4に係る冷媒圧縮機の密封端子の動作説明図で、図9(a)は、通常状態の密封端子、図9(b)は、ガラスシール破損時の密封端子、の一部拡大断面を示している。また、図9(b)において点線矢印は冷媒の流れを示している。
実施の形態4は、ピン62を図7に示した実施の形態2のピン62(すなわち、抜け防止部64のボディ61側を先細り形状(円錐状)としたことを特徴とするピン62)としている。そして更に、貫通孔61aの抜け防止部64側の端部61cの形状を、抜け防止部64の貫通孔61a側の端部と嵌め合わせ可能な形状としたものである。
FIG. 9 is an operation explanatory view of the sealing terminal of the refrigerant compressor according to Embodiment 4 of the present invention, FIG. 9A is a normal sealing terminal, and FIG. 9B is a broken glass seal. The partial expanded cross section of the sealing terminal is shown. In FIG. 9B, the dotted line arrow indicates the flow of the refrigerant.
In the fourth embodiment, the pin 62 is configured as the pin 62 of the second embodiment shown in FIG. 7 (that is, the pin 62 having a tapered shape (conical shape) on the body 61 side of the removal preventing portion 64). Yes. Further, the shape of the end portion 61c on the through hole 61a side of the through hole 61a can be fitted to the end portion of the through hole 61a on the through hole 61a side.

このように構成された密封端子60は、実施の形態2と同様、図9(a)に示すように、通常状態は、機内側においてピン62の抜け防止部64が、ボディ61から離れた状態となっている。   As in the second embodiment, the sealing terminal 60 configured as described above is in a state in which the pin 62 is prevented from coming off from the body 61 in the normal state, as shown in FIG. It has become.

そして、所定の事象が生じた場合、図9(b)に示すように、ガラスシール63が破損し(図9(b)には、ガラスシール63が、破損により貫通孔61aから完全に無くなった状態を示している)、ピン62と貫通孔61aとの絶縁固定が解消される。このため、ピン62が、機内の内圧によりボディ61側に押しやられる。このとき、ピン62の抜け防止部64が、ボディ61に当接して止まり、ピン62が貫通孔61aから抜けて機外に吹き飛ぶことが阻止される。   When a predetermined event occurs, the glass seal 63 is broken as shown in FIG. 9B (in FIG. 9B, the glass seal 63 is completely removed from the through hole 61a due to breakage. Insulating fixation between the pin 62 and the through hole 61a is canceled. For this reason, the pin 62 is pushed to the body 61 side by the internal pressure in the machine. At this time, the drop prevention part 64 of the pin 62 comes into contact with the body 61 and stops, and the pin 62 is prevented from coming out of the through hole 61a and blowing out of the machine.

ここで、実施の形態4では、抜け防止部64のボディ61側を略円錐状とすると共に、貫通孔61aの端部61cを、抜け防止部64の略円錐状部分と嵌め合わせ可能な形状としている。このため、ピン62が、機内の内圧によりボディ61側に押しやられた際、抜け防止部64の略円錐状部分が貫通孔61aの端部61cに嵌め込まれた状態となる。   Here, in the fourth embodiment, the body 61 side of the removal preventing portion 64 has a substantially conical shape, and the end portion 61c of the through hole 61a has a shape that can be fitted to the substantially conical portion of the removal preventing portion 64. Yes. For this reason, when the pin 62 is pushed toward the body 61 by the internal pressure in the machine, the substantially conical portion of the removal preventing portion 64 is fitted into the end portion 61c of the through hole 61a.

以上説明したように、本実施の形態4によれば、実施の形態2と同様の効果が得られると共に、貫通孔61aの端部61cを、抜け防止部64の略円錐状部分と嵌め合わせ可能な形状としたので、実施の形態2に比べて更に、ピン62の姿勢を安定した状態に保つことができるという効果が得られる。   As described above, according to the fourth embodiment, the same effects as those of the second embodiment can be obtained, and the end portion 61c of the through hole 61a can be fitted to the substantially conical portion of the removal preventing portion 64. As a result, the effect of maintaining the pin 62 in a stable state can be obtained as compared with the second embodiment.

なお、上記実施の形態1〜4では、抜け防止部64をタブ端子70が設けられる部分まで延ばした構成としたが、図10に示すように、ボディ61側の一部分だけとし、タブ端子70が設けられる部分は、貫通孔61aよりも小径の構成としてもよい。なお、図10には、実施の形態1に対応する構成を示したが、実施の形態2〜4においても同様の構成としてもよい。   In the first to fourth embodiments, the removal preventing portion 64 is extended to the portion where the tab terminal 70 is provided. However, as shown in FIG. The portion to be provided may have a smaller diameter than the through hole 61a. 10 shows the configuration corresponding to the first embodiment, but the same configuration may be applied to the second to fourth embodiments.

ところで、上記で説明した構成において、ピン62の抜け防止部64は、機内の圧力でボディ61に押し付けられた際の衝撃に耐えうる寸法設計とするべきであることは言うまでもない。   Incidentally, in the configuration described above, it goes without saying that the pin prevention part 64 of the pin 62 should have a dimension design that can withstand an impact when pressed against the body 61 by the pressure in the machine.

また、上記で説明した構成において、通常状態におけるピン62の抜け防止部64とボディ61との空間距離及び沿面距離は、使用電圧及び電流に対して十分に絶縁が可能であるように設定されるべきであることも言うまでもない。   Further, in the configuration described above, the spatial distance and the creepage distance between the drop-out preventing portion 64 of the pin 62 and the body 61 in the normal state are set so as to be sufficiently insulated from the operating voltage and current. Needless to say, it should be.

また、上記で説明した構成において、抜け防止部64の形状を円柱状としたが、これに限らず、要は、ガラスシール破損時に、抜け防止部64が貫通孔61aの開口端面61bに当接してピン62が貫通孔61aから機外へと抜けるのを防止することが可能であれば、例えば四角柱等としてもよい。   Further, in the configuration described above, the shape of the omission prevention portion 64 is a cylindrical shape, but this is not limiting, and the point is that the omission prevention portion 64 contacts the opening end surface 61b of the through hole 61a when the glass seal is broken. As long as it is possible to prevent the pin 62 from coming out of the machine from the through hole 61a, for example, a square pillar may be used.

また、上記説明では、冷媒通路65を溝として記述しているが、これにこだわるものではなく、ガラスシール破損時に、機外と機内を空間的に連通できる構成であれば、孔でもよい。よって、冷媒通路65を抜け防止部64に設ける場合は、要は、冷媒出口が、抜け防止部64の外表面のうち、ボディ61の貫通孔61aとの対向部分に形成され、冷媒入口が、それ以外の抜け防止部64の外表面のうち、ガラスシール破損時に貫通孔61aの開口端面61bと密接する部分以外の部分に形成されていればよい。図11には、ピン62の抜け防止部64に冷媒通路となる孔を設けた例を示し、また、図12には、ボディ61に冷媒通路となる孔を設けた例を示している。   In the above description, the refrigerant passage 65 is described as a groove, but this is not particular, and a hole may be used as long as the outside of the apparatus and the inside of the apparatus can be spatially communicated when the glass seal is broken. Therefore, when the refrigerant passage 65 is provided in the escape prevention part 64, in short, the refrigerant outlet is formed in a portion of the outer surface of the escape prevention part 64 facing the through hole 61a of the body 61, and the refrigerant inlet is Of the other outer surfaces of the drop prevention part 64, it may be formed in a part other than the part in close contact with the opening end face 61b of the through hole 61a when the glass seal is broken. FIG. 11 shows an example in which a hole serving as a refrigerant passage is provided in the drop prevention portion 64 of the pin 62, and FIG. 12 shows an example in which a hole serving as a refrigerant passage is provided in the body 61.

また、冷媒通路65をボディ61に設ける場合にも同様に溝でも孔でもよく、要は、冷媒出口が、貫通孔61aに面して設けられ、冷媒入口が、ボディ61の機内側の表面のうち、ガラスシール破損時に抜け防止部64と当接する部分以外の部分に形成されていればよい。   Similarly, when the refrigerant passage 65 is provided in the body 61, it may be a groove or a hole. In short, the refrigerant outlet is provided facing the through hole 61a, and the refrigerant inlet is provided on the surface of the body 61 on the inside of the machine. Of these, it may be formed in a portion other than the portion that comes into contact with the slip-off preventing portion 64 when the glass seal is broken.

また、上記説明では、冷媒通路65をボディ61又はピン62に設けるものとしているが、これにこだわるものではなく、ボディ61とピン62の両方に設けてもよい。   Further, in the above description, the refrigerant passage 65 is provided in the body 61 or the pin 62. However, the refrigerant passage 65 is not particularly limited, and may be provided in both the body 61 and the pin 62.

また、各実施の形態の特徴的な構成や、図10〜図12に示した各変形例を適宜組み合わせて密閉端子を構成してもよい。   Moreover, you may comprise a sealed terminal combining the characteristic structure of each embodiment and each modification shown in FIGS. 10-12 suitably.

また、上記説明では、冷媒圧縮機がスクロール圧縮機である構成を説明したが、これに限らず、ロータリー圧縮機等、他の形式の圧縮機としてもよい。   In the above description, the configuration in which the refrigerant compressor is a scroll compressor has been described. However, the present invention is not limited to this, and other types of compressors such as a rotary compressor may be used.

1 冷媒圧縮機、10 電動機部、11 固定子、12 回転子、20 圧縮機構部、21 固定スクロール、21a 渦巻歯、21b 吐出口、21c 吐出弁、22 揺動スクロール、22a 渦巻歯、30 主軸、31 油ポンプ、40 密閉容器、40a 壁面、40b 密封端子接続孔、41 潤滑油、42 吸入管、43 吐出管、60 密封端子、61 ボディ、61a 貫通孔、61b 貫通孔の開口端面、61c 端部、62 ピン、62a 貫通孔、63 ガラスシール、64 抜け防止部、65 冷媒通路(溝)、70 タブ端子、71 リード線、72 タブ端子、73 配線、74 端子箱、75 端子箱カバー。   DESCRIPTION OF SYMBOLS 1 Refrigerant compressor, 10 Electric motor part, 11 Stator, 12 Rotor, 20 Compression mechanism part, 21 Fixed scroll, 21a Spiral tooth, 21b Discharge port, 21c Discharge valve, 22 Swing scroll, 22a Spiral tooth, 30 Spindle, 31 Oil pump, 40 Airtight container, 40a Wall surface, 40b Sealed terminal connection hole, 41 Lubricating oil, 42 Suction pipe, 43 Discharge pipe, 60 Sealed terminal, 61 Body, 61a Through hole, 61b Open end face of through hole, 61c End 62 pin, 62a through hole, 63 glass seal, 64 slip prevention part, 65 refrigerant passage (groove), 70 tab terminal, 71 lead wire, 72 tab terminal, 73 wiring, 74 terminal box, 75 terminal box cover.

Claims (8)

電動機部と、
前記電動機部によって駆動されて冷媒を圧縮する圧縮機構部と、
前記電動機部及び前記圧縮機構部を収容する密閉容器と、
前記密閉容器の壁面を貫通して設けられ、前記密閉容器の外から前記電動機部に電源を供給するための密封端子とを備え、
前記密封端子は、
前記密閉容器の壁面に設けた密封端子接続孔に固定された金属製のボディと、
一端側が前記密閉容器の内部に突き出し、他端側が前記密閉容器の外部に突き出した状態で前記ボディの貫通孔に絶縁固定された少なくとも一本の導電性のピンと、
前記ボディの前記貫通孔と前記ピンとを絶縁固定する絶縁固定部と、
前記ピンの前記一端側に設けられ、前記絶縁固定部が破損した場合の、前記ピンの前記密閉容器外への抜けを防止する抜け防止部と、
前記絶縁固定部が破損して、前記密閉容器内の内圧により前記ピンの前記抜け防止部が前記貫通孔の開口端面に当接して抜けが防止された状態において、前記貫通孔と共に前記密閉容器の内外を連通させる連通路を形成する冷媒通路と
を備えたことを特徴とする冷媒圧縮機。
An electric motor section;
A compression mechanism that is driven by the electric motor to compress the refrigerant;
A sealed container that houses the electric motor section and the compression mechanism section;
Provided through the wall surface of the sealed container, and a sealed terminal for supplying power to the electric motor unit from the outside of the sealed container,
The sealed terminal is
A metal body fixed to a sealing terminal connection hole provided on the wall surface of the sealed container;
At least one conductive pin that is insulated and fixed to the through hole of the body in a state in which one end side protrudes into the inside of the sealed container and the other end side protrudes to the outside of the sealed container;
An insulating fixing part for insulatingly fixing the through hole and the pin of the body;
A disconnection prevention part that is provided on the one end side of the pin and prevents the pin from coming out of the sealed container when the insulating fixing part is damaged,
In the state where the insulation fixing portion is broken and the pin prevention portion of the pin comes into contact with the opening end surface of the through hole due to the internal pressure in the airtight container, the removal of the pin is prevented together with the through hole. A refrigerant compressor comprising a refrigerant passage that forms a communication passage that communicates the inside and the outside.
前記冷媒通路は、前記ピンの前記抜け防止部に設けた溝又は孔であることを特徴とする請求項1記載の冷媒圧縮機。   The refrigerant compressor according to claim 1, wherein the refrigerant passage is a groove or a hole provided in the pin prevention portion of the pin. 前記冷媒通路は、前記抜け防止部の外表面のうち、前記貫通孔との対向部分に冷媒出口が、それ以外の前記外表面のうち、前記絶縁固定部の破損時に前記貫通孔の開口端面と当接する部分以外の部分に冷媒入口が、形成されていることを特徴とする請求項2記載の冷媒圧縮機。   The refrigerant passage has a refrigerant outlet at a portion facing the through hole of the outer surface of the escape prevention portion, and an opening end face of the through hole when the insulating fixing portion is damaged among the other outer surfaces. The refrigerant compressor according to claim 2, wherein a refrigerant inlet is formed in a portion other than the abutting portion. 前記冷媒通路は、前記ボディに設けた溝又は孔であることを特徴とする請求項1記載の冷媒圧縮機。   The refrigerant compressor according to claim 1, wherein the refrigerant passage is a groove or a hole provided in the body. 前記冷媒通路は、前記貫通孔に面して冷媒出口が、前記ボディの機内側の表面のうち、前記絶縁固定部の破損時に前記抜け防止部と当接する部分以外の部分に冷媒入口が、形成されていることを特徴とする請求項4記載の冷媒圧縮機。   The refrigerant passage faces the through-hole, and a refrigerant outlet is formed in a portion of the body-inside surface of the body other than a portion that comes into contact with the escape prevention portion when the insulating fixing portion is damaged. The refrigerant compressor according to claim 4, wherein the refrigerant compressor is provided. 前記ピンの前記抜け防止部において前記貫通孔と対向する側の端部を先細り形状としたことを特徴とする請求項1乃至請求項5の何れか一項に記載の冷媒圧縮機。   The refrigerant compressor according to any one of claims 1 to 5, wherein an end portion of the pin that faces the through hole is tapered in the drop prevention portion. 前記ピンの前記抜け防止部において前記貫通孔と対向する側の端部を略円錐形状としたことを特徴とする請求項6記載の冷媒圧縮機。   The refrigerant compressor according to claim 6, wherein an end portion of the pin that is opposite to the through hole in the slip-off preventing portion has a substantially conical shape. 前記貫通孔の前記抜け防止部側の端部が、前記抜け防止部の前記貫通孔側の端部と嵌め合わせ可能な形状を有することを特徴とする請求項1乃至請求項7の何れか一項に記載の冷媒圧縮機。   8. The end of the through hole on the side of the through hole prevention part has a shape that can be fitted to the end of the through hole prevention part on the side of the through hole. 8. The refrigerant compressor according to item.
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JPS61135074A (en) * 1984-12-03 1986-06-23 エマーソン・エレクトリック・カンパニー Closed terminal assembly
JPS62284973A (en) * 1986-06-04 1987-12-10 Hitachi Ltd Enclosed compressor

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US4519662A (en) * 1982-04-08 1985-05-28 Westinghouse Electric Corp. High pressure electrical penetrator
JPS61135074A (en) * 1984-12-03 1986-06-23 エマーソン・エレクトリック・カンパニー Closed terminal assembly
JPS62284973A (en) * 1986-06-04 1987-12-10 Hitachi Ltd Enclosed compressor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105317679A (en) * 2014-07-30 2016-02-10 大金工业株式会社 Terminal and compressor with same
JP2016031069A (en) * 2014-07-30 2016-03-07 ダイキン工業株式会社 Terminal, and compressor including terminal

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