JPS62271975A - Air-tight terminal for enclosed-type compressor - Google Patents
Air-tight terminal for enclosed-type compressorInfo
- Publication number
- JPS62271975A JPS62271975A JP61115091A JP11509186A JPS62271975A JP S62271975 A JPS62271975 A JP S62271975A JP 61115091 A JP61115091 A JP 61115091A JP 11509186 A JP11509186 A JP 11509186A JP S62271975 A JPS62271975 A JP S62271975A
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- terminal
- insulating plate
- metal outer
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 claims abstract description 37
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract 5
- 239000002184 metal Substances 0.000 claims description 66
- 229910052751 metal Inorganic materials 0.000 claims description 66
- 230000005611 electricity Effects 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 22
- 239000003507 refrigerant Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 6
- 239000011247 coating layer Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/10—Connectors or connections adapted for particular applications for dynamoelectric machines
Landscapes
- Compressor (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
Description
【発明の詳細な説明】 ３、発明の詳細な説明 （イ）産業上の利用分野 本発明は密閉型圧縮機の気密端子に関する。[Detailed description of the invention] 3. Detailed description of the invention (b) Industrial application fields The present invention relates to a hermetic terminal for a hermetic compressor.
（ロ）従来の技術
一般に、密閉型圧縮機に使用される気密端子は、密閉容
器内において冷媒や油で浸されるため、耐冷媒性や耐油
性に優れ、しかも、端子ピンを強固に支持しておくこと
が可能な絶縁体としてガラスを使用している。具体的に
は、実公昭５６−１６７７７号公報等に記載きれ第６図
に示すように、ガラス２０を、金属外環２１の筒状部２
２内の透孔２３と端子ピン２４との間に封着することに
より、端子ピン２４を密閉容器２５の内外で気密絶縁的
に貫設している。しかしながら斯る構造の気密端子には
以下に説明する問題があった。(B) Conventional technology In general, airtight terminals used in hermetic compressors are soaked with refrigerant or oil in a closed container, so they have excellent refrigerant and oil resistance, and also provide strong support for the terminal pins. Glass is used as an insulator that can be kept in place. Specifically, as described in Japanese Utility Model Publication No. 56-16777, etc., and as shown in FIG.
By sealing between the through hole 23 in the container 2 and the terminal pin 24, the terminal pin 24 is installed in an airtight and insulating manner inside and outside the closed container 25. However, the hermetic terminal having such a structure has the following problems.
すなわち、密閉容器２５内の冷媒や油中には、容器の溶
接時やピストンの摺動摩耗等で生ずる鉄粉や銅粉等の金
属粉が混在している。そして、これら金属粉は冷媒によ
って容器内の各部に運ばれて耐着し、気密端子のガラス
２０表面にも耐着する。ガラス表面に耐着する金属粉の
量が多くなり、しかも圧縮機の再始動時等に端子に大き
な電圧が印加きれると、該金属粉を介して端子ピン２４
と筒状部２３の間でスパークがとび、漏電や端子の破損
といった事故になる。That is, the refrigerant and oil in the closed container 25 contain metal powders such as iron powder and copper powder, which are generated during welding of the container and sliding wear of the piston. These metal powders are carried by the refrigerant to various parts within the container and adhere thereto, and also adhere to the surface of the glass 20 of the airtight terminal. If the amount of metal powder adhering to the glass surface increases and a large voltage is applied to the terminals, such as when restarting the compressor, the metal powder will adhere to the terminal pin 24.
Sparks may fly between the cylindrical portion 23 and the cylindrical portion 23, resulting in accidents such as electrical leakage and damage to the terminals.
また、上記の問題に対処するものとして、実公昭５１−
９６９７号公報に記載きれ第７図に示したもの、特開昭
６０−７４９４２号公報に記載され第８図に示したもの
、及び、実公昭５１−４３４４４号公報に記載きれ第９
図に示したものが夫々提案啓れている。In addition, as a way to deal with the above problem,
What is completely described in JP-A No. 9697 and shown in Figure 7, what is described in JP-A-60-74942 and shown in Figure 8, and what is completely described in Japanese Utility Model Publication No. 51-43444 and shown in Fig.
Each of the items shown in the figure has been proposed.
まず、第７図のものは、密閉容器３０の内部に露出する
ガラス３１の表面と、金属外環３２の内面とに、エポキ
シ樹脂のコーティング層３３を形成したものである。こ
れは、コーティング層３３をエポキシ樹脂とすることに
よりその表面をなめらかに形成することができるため、
金属粉の耐着量を減少きせることができ、上述したスパ
ークの防止には有効である。First, in the case shown in FIG. 7, an epoxy resin coating layer 33 is formed on the surface of the glass 31 exposed inside the closed container 30 and the inner surface of the metal outer ring 32. This is because the coating layer 33 is made of epoxy resin so that its surface can be formed smoothly.
It is possible to reduce the adhesion resistance of metal powder and is effective in preventing the above-mentioned sparks.
また、第８図のものは、金属外環４０の開口端に、難燃
性樹脂で形成した絶縁劣化防止板４１を当接させたもの
である。これは、圧縮機のモーターが焼損した場合に生
ずる灰化物が、ガラス４２の表面に耐着するのを低減で
きるため、絶縁劣化の防止には有効である。In addition, in the one shown in FIG. 8, an insulation deterioration prevention plate 41 made of flame-retardant resin is brought into contact with the open end of a metal outer ring 40. This is effective in preventing insulation deterioration because it can reduce the adhesion of ash produced when the compressor motor burns out to the surface of the glass 42.
更にまた、第９図のものは、金属外環５０の開口端に、
端子ビン５１を被うように保護カバー５２を嵌着したも
のである。これは、保護カバー５２によって該カバー内
への金属粉や異物の侵入を防止し、ガラス５３の表面に
金属粉が附着するのを防止している。Furthermore, in the one shown in FIG. 9, at the open end of the metal outer ring 50,
A protective cover 52 is fitted to cover the terminal bin 51. This is because the protective cover 52 prevents metal powder and foreign matter from entering the cover, and prevents metal powder from adhering to the surface of the glass 53.
（ハ）発明が解決しようとする問題点
しかしながら、上述したいずれのものも以下のような問
題があり、改善策が要望されている。(c) Problems to be Solved by the Invention However, all of the above-mentioned methods have the following problems, and improvements are desired.
まず、第７図のものは、エポキシ樹脂のコーティング層
３３はガラス３１の表面に密着しているため、金属外環
３２の筒状部３４と端子ビン３５との間の絶縁距離（を
気力線の強いガラス表面における筒状部と端子ビンとの
距離）はあまり変わらず、また、端子ビン３５に電圧が
印加きれると筒状部３４の端部に生ずる静電気によって
該筒状部付近のコーティング層３３に金属粉が吸着きれ
易く（筒状部付近がもつとも電気力線が強いため）、依
然としてガラス３１の表面上のコーティング層３３に金
属粉が耐着してしまい、端子ビン３５と金属外環３２と
の間で生ずるスパークを確実に防止できるものとは言え
なかった。First, in the case shown in FIG. 7, since the epoxy resin coating layer 33 is in close contact with the surface of the glass 31, the insulation distance between the cylindrical portion 34 of the metal outer ring 32 and the terminal pin 35 (the air line (distance between the cylindrical part and the terminal pin on the glass surface) does not change much, and when the voltage is applied to the terminal pin 35, the coating layer near the cylindrical part is damaged by static electricity generated at the end of the cylindrical part 34. 33 (because the electric lines of force are strong near the cylindrical part), the metal powder still adheres to the coating layer 33 on the surface of the glass 31, and the terminal pin 35 and the metal outer ring However, it could not be said that sparks generated between the two and 32 could be reliably prevented.
また、第８図のものは、絶縁劣化防止板４１を金属外環
４０の開口端に当接させる構造であるため、密閉容器４
３内の圧力変動によっ千前記防止板４１がばたつき易く
、該防止板と金属外環４０の間に生ずる隙間から金属粉
を含んだ冷媒や油が侵入し、結局、ガラス４２０表面に
金属粉が耐着してしまうという問題があった。In addition, the structure shown in FIG. 8 has a structure in which the insulation deterioration prevention plate 41 is brought into contact with the open end of the metal outer ring 40.
The prevention plate 41 tends to flap due to pressure fluctuations inside the glass 420, and refrigerant or oil containing metal powder enters through the gap created between the prevention plate and the metal outer ring 40. Eventually, metal powder is deposited on the surface of the glass 420. There was a problem in that it was resistant to adhesion.
更にまた、第９図のものは、保護カバー５２によって気
密端子の密閉容器５４内側を完全に被っているため、該
カバー内に金属粉が侵入するのは防止できるが、該カバ
ーは端子ビン５１をも包括する構成なので保護カバ−５
２自体が大型となり、密閉容器５４内の狭いスペースに
は取付けられず圧縮機を大型化させてしまうと共に、リ
ード線５５と端子ビン５１との接続は、保護カバー５２
内のソケット５６に端子ビン５１の位置を合わせつつカ
バー５２を金属外環５０に嵌め込まなければならないた
め、接続作業性が悪いという問題があった。Furthermore, in the case of FIG. 9, the inside of the airtight terminal container 54 is completely covered by the protective cover 52, which prevents metal powder from entering the cover. Protective cover 5
2 itself becomes large and cannot be installed in a narrow space inside the closed container 54, making the compressor larger. In addition, the lead wire 55 and the terminal bin 51 are connected to each other using the protective cover 52.
Since it is necessary to fit the cover 52 into the metal outer ring 50 while aligning the position of the terminal bin 51 with the inner socket 56, there is a problem that connection workability is poor.
本発明は断る点に鑑みてなきれたもので、ガラスの表面
に金属粉が耐着するのを防止するだけでなく、金属外環
の静電気によってガラス表面に吸着する金属粉も減少き
せ、端子ビンと金属外環との間で生ずるスパークの発生
、これによる漏電や端子の破損を確実に防ぐのみならず
、気密端子自体を大型にすることなく、しかも、簡単な
構造、装着作業性も良好で上述の効果を達成なし得る気
密端子を提供することを目的とする。The present invention was developed in view of the above points, and it not only prevents metal powder from adhering to the glass surface, but also reduces metal powder adhering to the glass surface due to the static electricity of the metal outer ring. Not only does it reliably prevent sparks generated between the bottle and the metal outer ring, resulting in electrical leakage and damage to the terminal, but it also eliminates the need to increase the size of the airtight terminal itself, and has a simple structure and good installation workability. An object of the present invention is to provide an airtight terminal that can achieve the above-mentioned effects.
（ニ）問題点を解決するための手段
本発明は、透孔とこの透孔を囲む筒状部とを有する金属
外環を備え、この金属外環の透孔にガラスを介して端子
ビンを気密絶縁的に封着してなり、密閉容器を貫通して
該容器に固着きれた密閉型圧縮機の気密端子において、
前記金属外環の密閉容器内側に、端子ビンの外周面、筒
状部の外周面、及び金属外環の内周面に密着し、かつ、
ガラス表面との間に隙間が形成されるような合成樹脂の
薄板からなる絶縁板を装着したものである。(d) Means for Solving the Problems The present invention includes a metal outer ring having a through hole and a cylindrical part surrounding the through hole, and a terminal pin is inserted into the through hole of the metal outer ring through a glass. In an airtight terminal of a hermetic compressor that is sealed in an airtight and insulating manner and penetrates through a hermetic container and is firmly fixed to the container,
The metal outer ring is in close contact with the outer circumferential surface of the terminal bin, the outer circumferential surface of the cylindrical part, and the inner circumferential surface of the metal outer ring, and
It is equipped with an insulating plate made of a thin synthetic resin plate with a gap formed between it and the glass surface.
（ホ）作用
本発明の密閉型圧縮機の気密端子は上記の手段により、
合成樹脂製の絶縁板でガラスの表面を密封して被うこと
ができ、しかも、絶縁板とガラスの表面との間には距離
がおかれているので、電気力線のもっとも強いガラス表
面から絶縁板をある程度離すことができ（筒状部と端子
ピンとの間の絶縁距離を長くすることができ）、これに
より、単に、金属粉のガラス表面への耐着を防ぐだけで
なく、筒状部の端部で生じ絶縁板の表面に働く静電気の
吸引作用を弱めることができ、筒状部付近で絶縁板に耐
着しようとする金属粉も減少させることができるように
して、端子ピンと金属外環との間で生ずるスパークやこ
れによる漏電、端子の破損を確実に防止している。更に
、絶縁板は、金属外環の内部に装着されるため、気密端
子が大型になるようなことはなく、また、絶縁板は、金
属外環の内周面及び端子ピンの外周面に密着する構造と
いっても、該板は合成樹脂の薄板で形成きれているため
、該絶縁板の装着に際しては該板を手作業で金属外環内
へ押し込むだけで簡単に固定しておくことができ、しか
も、挿入作業は端子ピンを案内ピンとすることにより容
易に行なえる。(E) Function The airtight terminal of the hermetic compressor of the present invention can be obtained by the above-mentioned means.
The glass surface can be sealed and covered with a synthetic resin insulating plate, and since there is a distance between the insulating plate and the glass surface, it is possible to cover the glass surface with the strongest lines of electric force. The insulation plate can be separated to a certain extent (the insulation distance between the cylindrical part and the terminal pin can be increased), which not only prevents metal powder from adhering to the glass surface, but also prevents the cylindrical part from sticking to the glass surface. It is possible to weaken the suction effect of static electricity generated at the end of the cylindrical part and act on the surface of the insulating plate, and also to reduce the amount of metal powder that tries to adhere to the insulating plate near the cylindrical part. This reliably prevents sparks generated between the outer ring and the resulting electrical leakage, as well as damage to the terminals. Furthermore, since the insulating plate is installed inside the metal outer ring, the airtight terminal does not become large, and the insulating plate is tightly attached to the inner circumferential surface of the metal outer ring and the outer circumferential surface of the terminal pin. However, since the plate is made of a thin synthetic resin plate, when installing the insulating plate, it can be easily fixed by simply pushing the plate into the metal outer ring by hand. Moreover, the insertion work can be easily performed by using the terminal pin as a guide pin.
（へ）実施例 以下本発明の実施２例を図面に基づいて説明する。(f) Example A second embodiment of the present invention will be described below based on the drawings.
１は気密端子である。この端子は、３個の透孔２ととの
透孔の夫々を囲む筒状部３とを有する帽子形の金属外環
４を備え、この金属外環の夫々の透孔に端子ピン５を挿
通させると共にこの端子ピンと筒状部３の間にガラス６
を封着することにより、該端子ピンを金属外環４に気密
絶縁的に支持して構成きれている。そして、斯る気密端
子１は金属外環４の開口端が内側となるよう圧縮機の密
閉容器７に溶接されるのであるが、溶接゛される前に下
達する合成樹脂製の絶縁板８が装着される。1 is an airtight terminal. This terminal includes a cap-shaped metal outer ring 4 having three through holes 2 and a cylindrical portion 3 surrounding each of the through holes, and a terminal pin 5 is inserted into each of the through holes of the metal outer ring. A glass 6 is inserted between the terminal pin and the cylindrical part 3.
By sealing the terminal pins, the terminal pins are supported on the metal outer ring 4 in an airtight and insulating manner. The airtight terminal 1 is welded to the airtight container 7 of the compressor so that the open end of the metal outer ring 4 faces inside, but before welding, the synthetic resin insulating plate 8 is It will be installed.
すなわち８は耐冷媒性や耐油性に富んだ材料であるポリ
エチレンテレフタレート（以下ＰＥＴと称す）からなる
絶縁板である。この絶縁板は、厚さ２５０〜３００μ程
度のＰＥＴの薄板フィルムを融点直下に加熱した後、金
型によって絞り成形することにより円板形に形成されて
おり、外周の折返し部９と、膨出部１０及び大径孔１１
、小径孔１２を有する筒部１３と、中央の小孔１４とが
一体的に形成されている。ここで、この絶縁板の折返し
部９の外径は前記金属外環４の内径より僅かに大きく、
膨出部１０の内径は前記筒状部３の外径より僅かに小さ
く、また、大径孔１１の直−径は筒状部３より大きく、
小径孔１２の直径は端子ピン５の外径より僅かに小さく
なるよう形成される。そして、斯る絶縁板８は、第２図
に示すように、小径孔１２を端子ピン５に、折返し部９
を金属外環４の内側に工大状態に挿入することにより気
密端子１に装着きれている。ここで、気密端子１に装着
きれた絶縁板８は、上述した寸法関係から、小径孔１２
と端子ピン５の間、膨出部１０と筒状部３の間、及び折
返し部９と金属外環４の間で密着状態となると共に、ガ
ラス６の表面との間で隙間１５が形成きれた状態となる
。That is, 8 is an insulating plate made of polyethylene terephthalate (hereinafter referred to as PET), which is a material with high refrigerant resistance and oil resistance. This insulating plate is formed into a disc shape by heating a PET thin film with a thickness of about 250 to 300 μm to just below the melting point and then drawing it with a mold, and has a folded part 9 on the outer periphery and a bulge. part 10 and large diameter hole 11
, a cylindrical portion 13 having a small diameter hole 12, and a small hole 14 in the center are integrally formed. Here, the outer diameter of the folded portion 9 of this insulating plate is slightly larger than the inner diameter of the metal outer ring 4,
The inner diameter of the bulging part 10 is slightly smaller than the outer diameter of the cylindrical part 3, and the diameter of the large diameter hole 11 is larger than that of the cylindrical part 3.
The diameter of the small diameter hole 12 is formed to be slightly smaller than the outer diameter of the terminal pin 5. As shown in FIG.
It can be attached to the airtight terminal 1 by inserting it inside the metal outer ring 4 in an engineering state. Here, the insulating plate 8 completely attached to the airtight terminal 1 has a small diameter hole 12 due to the above-mentioned dimensional relationship.
and the terminal pin 5, between the bulging part 10 and the cylindrical part 3, and between the folded part 9 and the metal outer ring 4, and a gap 15 is formed between the surface of the glass 6. The state will be as follows.
このように構成された密閉型圧縮機の気密端子において
、ＰＥＴからなる絶縁板８は、ガラス６の表面を完全に
被っているだけでなく、該絶縁板とガラス６表面の間に
は隙間１５が形成されているため、電気力線のもっとも
強いガラス６表面から該板をある程度離しておくことが
でき、これにより、単に、冷媒や油に混在した金属粉の
ガラス６表面への耐着を防ぐだけでなく、筒状部３の端
部で生じ絶縁板８の表面に働く静電気の吸引作用を弱め
ることができ、筒状部３付近で絶縁板８に′吸着される
金属粉の量をも大巾に低減できることから、端子ピン５
と金属外環４との間で生ずるスパークを確実に防止でき
る。このことは、第５図に示すように、鉄粉や銅粉等の
金属粉を含む油中に、本実施例の気密端子と第６図及び
第７図に示した従来例の気密端子を順番に浸漬させ、金
属粉が沈積しないように回転翼１６で油を攪拌しつつ夫
々の端子にＩＫｖ及び２ＫＶの電圧を印加して行った油
中スパークテストにおいて、ＩＫＶでは、第６図に示し
た従来品が９分間で破損、第７図に示した従来品が５０
分間で破損、また、２ＫＶでは、第６図に示した従来品
が４分間で破損、第７図に示した従来品が１８分間で破
損したのに対し、本発明品は２ＫＶで４時間経過した後
でも破損しなかったことから確認きれた。In the airtight terminal of the hermetic compressor constructed in this way, the insulating plate 8 made of PET not only completely covers the surface of the glass 6, but also has a gap 15 between the insulating plate and the surface of the glass 6. Because of this, the plate can be kept a certain distance from the surface of the glass 6 where the lines of electric force are strongest, and this simply prevents metal powder mixed in the refrigerant or oil from adhering to the surface of the glass 6. In addition to preventing this, it is possible to weaken the suction effect of static electricity generated at the end of the cylindrical part 3 and acting on the surface of the insulating plate 8, and to reduce the amount of metal powder that is attracted to the insulating plate 8 near the cylindrical part 3. terminal pin 5.
Sparks generated between the metal outer ring 4 and the metal outer ring 4 can be reliably prevented. This means that, as shown in Fig. 5, the airtight terminal of this embodiment and the conventional airtight terminal shown in Figs. In the spark test in oil, which was carried out by applying voltages of IKv and 2KV to each terminal while stirring the oil with a rotary blade 16 to prevent metal powder from depositing, IKV showed the following results: The conventional product shown in Figure 7 broke in 9 minutes.
Furthermore, at 2KV, the conventional product shown in Figure 6 broke in 4 minutes, and the conventional product shown in Figure 7 broke in 18 minutes, whereas the product of the present invention broke after 4 hours at 2KV. I was able to confirm this because there was no damage even after doing so.
また、絶縁板８は、金属外環４の内部に装着されるため
、気密端子１が大型になることはなく、密閉容器７内に
従前と変わらない広い空間を残しておくことができ、こ
の空間分の削除による圧縮機の小型化やクラスタの端子
ピンへの装着作業性を向上できる。In addition, since the insulating plate 8 is installed inside the metal outer ring 4, the airtight terminal 1 does not become large, and a large space can be left inside the sealed container 7, which is the same as before. By eliminating the space, the compressor can be made smaller and the workability of attaching the cluster to the terminal pin can be improved.
また、絶縁板８は、厚さ２５０〜３００μ程度のＰεＴ
フィルムで形成されていること、及び、折返し部９、大
径孔１１、小径孔１２は金属外環４や端子ピン５と上述
したような寸法関係に設定されていることから、金属外
環４の内周面と端子ピン５の外周面に密着する構造とは
いえ、絶縁板８の装着作業は、該板を端子ピン５と金属
外環４内八手作業で押し込むだけで簡単にかつ強固に固
定しておくことができ、しかも、挿入作業は端子ピン５
が案内ピンとなるためスムーズに行なえ、更に、３個の
筒状部３がストッパーとなるため位置決め作業も容易で
あり、これらのことから、装着作業性を向上できる。In addition, the insulating plate 8 has a thickness of about 250 to 300μ and is made of PεT.
The metal outer ring 4 is formed of a film, and the folded portion 9, the large diameter hole 11, and the small diameter hole 12 are set to have the above-mentioned dimensional relationship with the metal outer ring 4 and the terminal pin 5. Although the structure is such that the inner circumferential surface of the insulating plate 8 is in close contact with the outer circumferential surface of the terminal pin 5, the installation work of the insulating plate 8 is easy and strong by simply pushing the plate into the terminal pin 5 and the metal outer ring 4 by hand. Terminal pin 5 can be fixed to the
Since the cylindrical portions 3 serve as guide pins, the mounting process can be carried out smoothly.Furthermore, the three cylindrical parts 3 serve as stoppers, making the positioning work easy, and from these reasons, the installation workability can be improved.
更にまた、絶縁板８の中央には小孔１４が設けられてい
るため、該板の内外で大きな圧力差が生ずることはなく
、絶縁板８が圧力差によって脱落するのを防止できる。Furthermore, since the small hole 14 is provided in the center of the insulating plate 8, a large pressure difference does not occur between the inside and outside of the plate, and it is possible to prevent the insulating plate 8 from falling off due to the pressure difference.
ここで、小孔１４を介して金属粉を含む冷媒や油が絶縁
板８内へ侵入するようなことが考えられるが、このよう
なことがあっても、該板は上述したように、筒状部３の
外周面と端子ピン５の外周面との双方で密着されている
ので、金属粉がガラス６の表面に侵入することはない。Here, it is conceivable that refrigerant or oil containing metal powder may enter into the insulating plate 8 through the small holes 14, but even if this happens, the plate will not be able to hold the cylinder as described above. Since both the outer circumferential surface of the shaped portion 3 and the outer circumferential surface of the terminal pin 5 are in close contact with each other, metal powder does not enter the surface of the glass 6.
（ト）発明の効果
以上のように本発明は、透孔とこの透孔を囲む筒状部と
を有する金属外環を備え、この金属外環の透孔にガラス
を介して端子ピンを気密絶縁的に封着してなり、密閉容
器を貫通して該容器に固着きれた密閉型圧縮機の気密端
子において、前記金属外環の密閉容器内側に、端子ピン
の外周面、筒状部の外周面、及び金属外環の内周面に密
着し、かつ、ガラス表面との間に隙間が形成されるよう
な合成樹脂の薄板からなる絶縁板を装着したので、前記
絶縁板でガラス表面を密封状態でしかもある程度の間隔
をおいて被うことができ、単にガラス表面への金属粉の
耐着を防ぐだけでなく、筒状部の端部で生じ絶縁板の表
面に働く静電気の吸引作用を弱めることができ、筒状部
付近で絶縁板に耐着しようとする金属粉も減少きせて、
端子ピンと金属外環との間で生ずるスパークやこれによ
る漏電、端子の破損を一層低減できる。更に、絶縁板は
、金属外環の内部に装着されるため、気密端子が大型に
なることはなく、また、絶縁板は合成樹脂の薄板から形
成されているので、該板が金属外環や端子ピンに密着状
態に装着きれるといっても絶縁板の装着作業は該板を金
属外環内へ手作業で押し込むことにより簡単に装着でき
、しかも挿入作業は端子ピンが案内ピンとなって容易に
行なえる。(G) Effects of the Invention As described above, the present invention includes a metal outer ring having a through hole and a cylindrical portion surrounding the through hole, and a terminal pin is hermetically inserted into the through hole of the metal outer ring through a glass. In an airtight terminal for a hermetic compressor that is insulatively sealed and penetrates through a hermetic container and is firmly fixed to the container, the outer circumferential surface of the terminal pin and the cylindrical portion are located inside the hermetic container of the metal outer ring. An insulating plate made of a thin synthetic resin plate that is in close contact with the outer circumferential surface and the inner circumferential surface of the metal outer ring with a gap formed between it and the glass surface is installed, so that the glass surface is covered with the insulating plate. It can be covered in a sealed state and at a certain distance, and it not only prevents metal powder from adhering to the glass surface, but also attracts static electricity that is generated at the end of the cylindrical part and acts on the surface of the insulating plate. This reduces the amount of metal powder that tries to adhere to the insulating plate near the cylindrical part.
Sparks generated between the terminal pin and the metal outer ring, electrical leakage caused by this, and damage to the terminal can be further reduced. Furthermore, since the insulating plate is installed inside the metal outer ring, the airtight terminal does not become large, and since the insulating plate is made of a thin synthetic resin plate, the plate is attached to the metal outer ring. Although the insulating plate can be attached tightly to the terminal pin, the insulating plate can be easily attached by manually pushing the plate into the metal outer ring, and the terminal pin acts as a guide pin, making the insertion process easier. I can do it.
第１図乃至第５図は本発明の実施例を示し、第１図は気
密端子の断面図、第２図は絶縁板の挿入途中の状態を示
す気密端子の断面図、第３図は絶縁板の断面図、第４図
は同じく絶縁板の平面図、第５図はスパークテストの実
験装置を示す説明図、第６図乃至第９図は夫々従来例を
示す気密端子の断面図である。
１・・・気密端子、 ２・・・透孔、 ３・・・筒状部
、４・・・金属外環、 ５・・・端子ピン、 ６・
・・ガラス、７・・・密閉容器、 ８・・・絶縁板、
１５・・・隙間。
出願人 三洋電機株式会社外１名
代理人 弁理士 西野卓嗣 外１名
第１図
第３図
第４１！１
第５図
第８図1 to 5 show embodiments of the present invention, FIG. 1 is a sectional view of an airtight terminal, FIG. 2 is a sectional view of an airtight terminal showing a state in which an insulating plate is inserted, and FIG. 3 is an insulated terminal. 4 is a plan view of the insulating plate, FIG. 5 is an explanatory diagram showing an experimental device for a spark test, and FIGS. 6 to 9 are sectional views of conventional airtight terminals. . DESCRIPTION OF SYMBOLS 1... Airtight terminal, 2... Through hole, 3... Cylindrical part, 4... Metal outer ring, 5... Terminal pin, 6...
...Glass, 7...Airtight container, 8...Insulating plate,
15... Gap. Applicant Sanyo Electric Co., Ltd. and one other agent Patent attorney Takuji Nishino and one other person Figure 1 Figure 3 Figure 41!1 Figure 5 Figure 8
Claims (1)
を備え、この金属外環の透孔にガラスを介して端子ピン
を気密絶縁的に封着してなり、密閉容器を貫通して該容
器に固着された密閉型圧縮機の気密端子において、前記
金属外環の密閉容器内側には、端子ピンの外周面、筒状
部の外周面、及び金属外環の内周面に密着し、かつ、ガ
ラス表面との間に隙間が形成されるような合成樹脂の薄
板からなる絶縁板が装着されていることを特徴とする密
閉型圧縮機の気密端子。(1) A closed container comprising a metal outer ring having a through hole and a cylindrical part surrounding the through hole, and a terminal pin hermetically and insulatively sealed to the through hole of the metal outer ring through glass. In the hermetic compressor airtight terminal that is fixed to the container through the metal outer ring, the outer peripheral surface of the terminal pin, the outer peripheral surface of the cylindrical part, and the inner periphery of the metal outer ring are located inside the sealed container of the metal outer ring. 1. An airtight terminal for a hermetic compressor, characterized in that an insulating plate made of a thin synthetic resin plate is attached to the glass surface so that a gap is formed between the airtight terminal and the glass surface.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61115091A JPS62271975A (en) | 1986-05-20 | 1986-05-20 | Air-tight terminal for enclosed-type compressor |
| CS873488A CZ279382B6 (en) | 1986-05-20 | 1987-05-14 | Air-tight sealed rotary compressor |
| SK3488-87A SK278782B6 (en) | 1986-05-20 | 1987-05-14 | Hermetically sealed rotating compressor |
| CN87103613A CN1008760B (en) | 1986-05-20 | 1987-05-15 | Hermetically sealed rotary compressor |
| IT20541/87A IT1204624B (en) | 1986-05-20 | 1987-05-15 | HERMETICALLY SEALED ROTARY COMPRESSOR |
| KR1019870005056A KR930001917B1 (en) | 1986-05-20 | 1987-05-20 | Enclosed type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61115091A JPS62271975A (en) | 1986-05-20 | 1986-05-20 | Air-tight terminal for enclosed-type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62271975A true JPS62271975A (en) | 1987-11-26 |
| JPH0477158B2 JPH0477158B2 (en) | 1992-12-07 |
Family
ID=14653977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61115091A Granted JPS62271975A (en) | 1986-05-20 | 1986-05-20 | Air-tight terminal for enclosed-type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62271975A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06185463A (en) * | 1990-03-21 | 1994-07-05 | Tecumseh Prod Co | Airtight terminal with electrical insulating anti-tracking-cap |
| US5391061A (en) * | 1992-03-18 | 1995-02-21 | Matsushita Refrigeration Company | Hermetic terminal cover and compressor incorporating same |
| WO2020138019A1 (en) * | 2018-12-28 | 2020-07-02 | ショット日本株式会社 | Hermetic terminal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519697U (en) * | 1974-07-08 | 1976-01-24 |
-
1986
- 1986-05-20 JP JP61115091A patent/JPS62271975A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519697U (en) * | 1974-07-08 | 1976-01-24 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06185463A (en) * | 1990-03-21 | 1994-07-05 | Tecumseh Prod Co | Airtight terminal with electrical insulating anti-tracking-cap |
| US5391061A (en) * | 1992-03-18 | 1995-02-21 | Matsushita Refrigeration Company | Hermetic terminal cover and compressor incorporating same |
| WO2020138019A1 (en) * | 2018-12-28 | 2020-07-02 | ショット日本株式会社 | Hermetic terminal |
| JP2020107575A (en) * | 2018-12-28 | 2020-07-09 | ショット日本株式会社 | Airtight terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0477158B2 (en) | 1992-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |