JPH03294672A - Hermetic compressor - Google Patents

Hermetic compressor

Info

Publication number
JPH03294672A
JPH03294672A JP9590690A JP9590690A JPH03294672A JP H03294672 A JPH03294672 A JP H03294672A JP 9590690 A JP9590690 A JP 9590690A JP 9590690 A JP9590690 A JP 9590690A JP H03294672 A JPH03294672 A JP H03294672A
Authority
JP
Japan
Prior art keywords
valve plate
cylinder
plate
synthetic resin
productivity
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.)
Pending
Application number
JP9590690A
Other languages
Japanese (ja)
Inventor
Motohiko Osano
元彦 小佐野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP9590690A priority Critical patent/JPH03294672A/en
Publication of JPH03294672A publication Critical patent/JPH03294672A/en
Pending legal-status Critical Current

Links

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  • Compressor (AREA)

Abstract

PURPOSE:To enhance the productivity as well as to restrain heat from hot gas from being transferred via a valve plate by making up the valve plate from synthetic resin which holds a metallic plate in between. CONSTITUTION:A valve plate 12 which blocks the opening of the cylinder 8a of a compressor section, is made up from synthetic resin which holds a metallic plate 21 in between. This can eliminate a need for complex cutting works and boring works, productivity can thereby be enhanced. In addition, this can prevents heat from hot gas within the high pressure chamber 22 of a cylinder head 16 from being transferred to a low pressure chamber 23 via the valve plate 12.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は冷蔵庫や冷凍ショーケース等に使用される密閉
型圧縮機に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a hermetic compressor used in refrigerators, freezer showcases, and the like.

(ロ)従来の技術 従来、この種の密閉型圧縮機は特公昭62−30311
号公報等に記載されているように、密閉容器内に電動機
部と圧縮機部を収納し、これら同棲部を回転軸にて連結
すると共に、前記圧縮機部のシリンダの開口をバルブプ
レート及びシリンダヘッドで閉塞して構成される。ここ
で、バルブプレートは、−船釣に鋳物や焼結材等の金属
で形成されており、ガスの吐出穴及び吸入穴が穿設され
ると共に、その両端面はガスのリークを防止するために
研摩加工により高い平坦度に什上げられている。そして
、このバルブプレートの吐出大側にはシリンダヘッドの
吐出室が、吸入大側には吸入室が形成されている。
(b) Conventional technology Conventionally, this type of hermetic compressor was
As described in the publication, an electric motor section and a compressor section are housed in a sealed container, these coexisting sections are connected by a rotating shaft, and the opening of the cylinder of the compressor section is connected to a valve plate and a cylinder. It is closed by the head. Here, the valve plate is made of metal such as cast metal or sintered material, and has gas discharge holes and suction holes, and both end faces are designed to prevent gas leakage. It has been polished to a high level of flatness. A discharge chamber of the cylinder head is formed on the large discharge side of this valve plate, and a suction chamber is formed on the large suction side.

(ハ)発明が解決しようとする課題 しかしながら上記の構成によると、バルブプレー1・は
鋳物や焼結等の金属で形成されているため強度的には強
いものの、その両端面に精度の高い仕上げ加工を施した
り、吐出穴や吸入穴の穿孔をしなければならず、作業工
数が煩雑であるという問題があった。また、バルブプレ
ートは金属であるため、シリンダヘッドの吐出室内の高
温ガスの熱が該バルブプレートを介して吸入室内の低温
ガスに伝わり易く、吸入ガスが加熱されて希薄化し体積
効率が低下するといった問題があった。
(c) Problems to be Solved by the Invention However, according to the above configuration, although the valve plate 1 is made of metal such as cast metal or sintered material and is strong in terms of strength, both end faces are finished with high precision. There is a problem in that it requires processing and drilling of discharge holes and suction holes, which requires a lot of man-hours. In addition, since the valve plate is made of metal, the heat of the high-temperature gas in the discharge chamber of the cylinder head is easily transferred to the low-temperature gas in the suction chamber through the valve plate, causing the suction gas to be heated and diluted, resulting in a decrease in volumetric efficiency. There was a problem.

本発明は斯る点に鑑みなされたものであり、バルブプレ
ートの両端面への煩雑な切削加工や穿孔作業を廃止して
生産性を向上すると共に、高温ガスの熱がバルブプレー
トを介して伝わるのを抑制し、体積効率を向上すること
を目的とする。
The present invention has been developed in view of these points, and improves productivity by eliminating the complicated cutting and drilling work on both end faces of the valve plate, and also allows the heat of high-temperature gas to be transmitted through the valve plate. The aim is to suppress this and improve volumetric efficiency.

(ニ)課題を解決するための手段 本発明は、密閉容器内に電動機部と圧縮機部を収納し、
これら同棲部を回転軸にて連結すると共に、前記圧縮機
部のシリンダの開口をバルブプレトにて閉塞しているも
のにおいて、前記バルブプレートを、金属板を挟持した
合成樹脂材にて形成したものである。
(d) Means for Solving the Problems The present invention stores an electric motor section and a compressor section in a closed container,
These cohabiting parts are connected by a rotating shaft, and the opening of the cylinder of the compressor part is closed by a valve plate, in which the valve plate is formed of a synthetic resin material with a metal plate sandwiched between them. be.

(ホ)作用 本発明の密閉型圧縮機は上記の構成により、バルブプレ
ートは成形型による成形にてその両端面の平坦度を精度
良く仕上げることができ、しがも吐出穴や吸入穴等の穴
は成形と同時に形成できるため、煩雑な切削加工や穿孔
作業を不要にでき、生産性を向上できる。ここで、バル
ブプレートに挟持される金属板はバルブプレートの成形
時にインサートしたり、また、2枚のプレート間に介挿
するだけで簡単に挟持することができるため、生産性を
悪化させるようなことはない。また、バルブプレートは
合成樹脂製であるため、シリンダヘッドの高圧室内の高
温ガスの熱が該プレー1−を介して低圧室に伝わるのを
抑制することができ、吸入ガスの温度−上昇を押さえて
シリンダ内へ密度の濃いガスを供給し、体積効率を向−
ヒできる。
(E) Function The hermetic compressor of the present invention has the above-described configuration, and the valve plate can be formed with a mold to finish the flatness of both end surfaces with high accuracy, and the flatness of the valve plate can be precisely finished on both end faces. Since the holes can be formed at the same time as molding, complicated cutting and drilling operations can be eliminated, improving productivity. Here, the metal plate sandwiched between the valve plates can be easily sandwiched by inserting it during molding of the valve plate, or by simply inserting it between two plates. Never. In addition, since the valve plate is made of synthetic resin, it is possible to suppress the heat of the high-temperature gas in the high-pressure chamber of the cylinder head from being transmitted to the low-pressure chamber via the plate 1-, thereby suppressing a rise in the temperature of the intake gas. to supply dense gas into the cylinder to improve volumetric efficiency.
I can do it.

(へ)実施例 以下、本発明の実施例を図面に基ずいて説明する。(f) Example Embodiments of the present invention will be described below with reference to the drawings.

lは密閉容器2内に電動機部3と圧縮機部4を収納する
と共に前記同棲部3,4を回転軸5にて連結してなる密
閉型圧縮機である。前記電動機部4はステータ6とロー
タ7とがら構成される。前記圧縮機部4は、前記ステー
タ5の上面に固着され、シリンダ8aを一体形成したモ
ーターケース8ど、前記シリンダ8a内を往復摺動する
ボールジヨイント式のピストン9と、このピストンと回
転軸5のクランクピン10を連結するコンロンド11と
、前記シリンダ8aの開口端面を閉塞するバルブプレー
ト】2及びシリンダヘッド13とから構成される。前記
モーターケース8は、上記シJンダ8aの他にステータ
5・\の取付脚14と、軸受15と、密閉容器2との当
り部17とを鋳物にて一体的に形成している。18は前
記回転軸5に一体的に形成されたバランサーであり、こ
のバランサーである。前記バルブプレートは、合成樹脂
材の成形にて形成されており、その中央部にガスの吐出
穴19と吸入穴20を同時成形すると共に、前記両穴1
9.20と対応する位置に2つの穴を有する金属板21
がインサートされている。
Reference numeral 1 denotes a hermetic compressor in which a motor part 3 and a compressor part 4 are housed in a hermetic container 2, and the coexisting parts 3 and 4 are connected by a rotating shaft 5. The electric motor section 4 is composed of a stator 6 and a rotor 7. The compressor section 4 includes a motor case 8 that is fixed to the upper surface of the stator 5 and has a cylinder 8a integrally formed therein, a ball joint type piston 9 that reciprocates inside the cylinder 8a, and this piston and a rotating shaft. 5, a connecting rod 11 that connects the crank pin 10 of No. 5, a valve plate 2 that closes the open end surface of the cylinder 8a, and a cylinder head 13. The motor case 8 includes, in addition to the cylinder 8a, a mounting leg 14 for the stator 5, a bearing 15, and a contact portion 17 for contacting the closed container 2, which are integrally formed by casting. Reference numeral 18 denotes a balancer formed integrally with the rotating shaft 5. The valve plate is formed by molding a synthetic resin material, and has a gas discharge hole 19 and a suction hole 20 simultaneously molded in the center thereof, and both holes 1
9. Metal plate 21 with two holes at positions corresponding to 20
is inserted.

ここで、前記バルブプレート12の材料は、例えば熱変
形温度が100℃以上、線膨張係数が1゜1 X 10
−5/”C程度、熱クリープが殆どなく、強度的にも優
れたエンジニアリングプラスチックを使用することが望
ましい。前記シリンダヘッド13には、バルブプレート
12の吐出穴19及び吸入穴20の各々に対応して吐出
室22と吸入室23が形成されている。
Here, the material of the valve plate 12 has, for example, a thermal deformation temperature of 100°C or higher and a linear expansion coefficient of 1°1 x 10
It is desirable to use an engineering plastic that has a temperature of about -5/''C, almost no thermal creep, and has excellent strength. A discharge chamber 22 and a suction chamber 23 are formed.

このように構成された密閉型圧縮機において、バルブプ
レート12は合成樹脂材の成形型による成形にて形成さ
れているため、その両端面の平坦度を精度良く仕上げる
ことができ、しかも吐出穴19や吸入穴20等の穴は成
形と同時に形成できるため、煩雑な切削加工や穿孔作業
を不要にでき生産性を向上できる。また、バルブプレー
ト12の高圧側には、第2図中矢印に示すような吐出室
22内の高圧ガスの圧力を受けるが、該バルブプレート
には上記したように金属板21がインサトされているた
め、変形するようなことはない。
In the hermetic compressor configured in this manner, the valve plate 12 is formed by molding with a mold made of synthetic resin material, so that the flatness of both end faces can be finished with high accuracy, and the discharge hole 19 can be finished with high precision. Since holes such as the suction hole 20 and the like can be formed at the same time as molding, complicated cutting and drilling operations can be eliminated and productivity can be improved. Further, the high pressure side of the valve plate 12 receives the pressure of the high pressure gas in the discharge chamber 22 as shown by the arrow in FIG. 2, and the metal plate 21 is inserted into the valve plate as described above. Therefore, it will not be deformed.

また、バルブプレート12に挟持された金属板は上記の
如くバルブプレート12の成形時にインサトしたり、ま
た、2枚の樹脂製プレート間に介挿したりするだけで簡
単に挟持することができるため、生産性を悪化させるよ
うなことはない。また、バルブプレート12は合成樹脂
製であることから、シリンダヘッド13の高圧室22内
の高温ガスの熱が該プレートを介して低圧室23に伝わ
るのを抑制することができ、吸入ガスの温度上昇を押さ
えてシリンダ8 a内へ密度の濃いガスを供給して体積
効率を向」二できる。
In addition, the metal plate sandwiched between the valve plate 12 can be easily sandwiched by inserting it during molding of the valve plate 12 as described above, or by inserting it between two resin plates. It does not cause any deterioration in productivity. In addition, since the valve plate 12 is made of synthetic resin, it is possible to suppress the heat of the high-temperature gas in the high-pressure chamber 22 of the cylinder head 13 from being transmitted to the low-pressure chamber 23 via the plate, thereby increasing the temperature of the intake gas. The volumetric efficiency can be improved by suppressing the rise and supplying dense gas into the cylinder 8a.

(ト)発明の効果 以上のように本発明によれば、バルブプレートは合成樹
脂材の成形型による成形にてその両端面の平坦度を精度
良く仕上げることができ、しかも吐出穴や吸入穴等の穴
は成形と同時に形成できるため、煩雑な切削加工や穿孔
作業を不要にでき、生産性を向−Lできる。ここで、バ
ルブプレートに挟持される金属板はバルブプレートの成
形時にインサートしたり、また、2枚のプレート間に介
挿するだけで簡単に挟持することができるため、生産性
を悪化させるようなことはない。また、バルブプレート
は合成樹脂製であるため、シリンダヘッドの高圧室内の
高温ガスの熱が該プレートを介して低圧室に伝わるのを
抑制することができ、吸入ガスの温度上昇を押さえてシ
リンダ内・\密度の濃いガスを供給でき、体積効率を向
上できる。
(G) Effects of the Invention As described above, according to the present invention, the valve plate can be molded with a mold made of synthetic resin material to achieve accurate flatness on both end faces, and the discharge hole, suction hole, etc. Since the holes can be formed at the same time as molding, complicated cutting and drilling operations can be eliminated and productivity can be improved. Here, the metal plate sandwiched between the valve plates can be easily sandwiched by inserting it during molding of the valve plate, or by simply inserting it between two plates. Never. In addition, since the valve plate is made of synthetic resin, it can suppress the heat of high-temperature gas in the high-pressure chamber of the cylinder head from being transmitted to the low-pressure chamber via the plate, suppressing the temperature rise of intake gas and・Can supply high-density gas and improve volumetric efficiency.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の実施例を示す密閉型圧縮機の縦断面図
、第2図は第1図に示した圧縮機の要部1折面図、第3
図は第2図の平面図である。 8a・・シリンダ、12・・・バルブプレート、13・
・シリンダヘッド、19・・吐出穴、2o・・・吸入穴
21・・・金属板。
FIG. 1 is a vertical cross-sectional view of a hermetic compressor showing an embodiment of the present invention, FIG.
The figure is a plan view of FIG. 2. 8a...Cylinder, 12...Valve plate, 13...
・Cylinder head, 19...Discharge hole, 2o...Suction hole 21...Metal plate.

Claims (1)

【特許請求の範囲】[Claims] (1)密閉容器内に電動機部と圧縮機部を収納し、これ
ら両機部を回転軸にて連結すると共に、前記圧縮機部の
シリンダの開口をバルブプレートにて閉塞しているもの
において、前記バルブプレートは金属板を挟持した合成
樹脂材にて形成されていることを特徴とする密閉型圧縮
機。
(1) An electric motor section and a compressor section are housed in a closed container, these two sections are connected by a rotating shaft, and the opening of the cylinder of the compressor section is closed with a valve plate, in the above-mentioned A hermetic compressor characterized in that the valve plate is made of a synthetic resin material sandwiching a metal plate.
JP9590690A 1990-04-10 1990-04-10 Hermetic compressor Pending JPH03294672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9590690A JPH03294672A (en) 1990-04-10 1990-04-10 Hermetic compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9590690A JPH03294672A (en) 1990-04-10 1990-04-10 Hermetic compressor

Publications (1)

Publication Number Publication Date
JPH03294672A true JPH03294672A (en) 1991-12-25

Family

ID=14150337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9590690A Pending JPH03294672A (en) 1990-04-10 1990-04-10 Hermetic compressor

Country Status (1)

Country Link
JP (1) JPH03294672A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1449687A2 (en) 2003-02-18 2004-08-25 Nissan Motor Company, Limited Height regulating device for the suspension unit of a vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1449687A2 (en) 2003-02-18 2004-08-25 Nissan Motor Company, Limited Height regulating device for the suspension unit of a vehicle

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