JPS5963379A - 密閉形電動圧縮機のプラスチツクサイレンサの製造方法 - Google Patents

密閉形電動圧縮機のプラスチツクサイレンサの製造方法

Info

Publication number
JPS5963379A
JPS5963379A JP57170893A JP17089382A JPS5963379A JP S5963379 A JPS5963379 A JP S5963379A JP 57170893 A JP57170893 A JP 57170893A JP 17089382 A JP17089382 A JP 17089382A JP S5963379 A JPS5963379 A JP S5963379A
Authority
JP
Japan
Prior art keywords
silencer
flow path
plastic
manufacture
suction
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
JP57170893A
Other languages
English (en)
Inventor
Tadashi Iizuka
飯塚　董
Makoto Tanaka
誠 田中
Kenji Ogino
荻野　賢二
Koichi Inaba
稲場　恒一
Yoshio Asahino
旭野　芳男
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57170893A priority Critical patent/JPS5963379A/ja
Priority to AU19774/83A priority patent/AU1977483A/en
Priority to KR1019830004608A priority patent/KR850001413B1/ko
Priority to ES526145A priority patent/ES8406943A1/es
Publication of JPS5963379A publication Critical patent/JPS5963379A/ja
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/14—Particular design of joint configurations particular design of the joint cross-sections the joint having the same thickness as the thickness of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0072—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes characterised by assembly or mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Silencers (AREA)
  • Compressor (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は冷蔵庫、ルームエアコンなどの小形冷凍機に使
用する密閉形電動圧縮機の吸込佃すイレンザに係り、特
に圧縮機の効率を高めるために好適な媚数分割形状のプ
ラスチソクザイレンザの製造方法に関する。
〔従来技術〕
従来の密閉形電動圧縮機は第１図例より説明すると、１
はクランクシャフト、２はピストン、６ば７１８動機、
４はシリンダ、５はシリンダヘッド、６は吸込パイプ、
７は吸込ザイレンザ、８は吐出ザイレンザであり、比較
的低温の戻り冷媒ガスは吸込バイブロから吸込サイレン
ザ７を経て、シリンダヘット５よりシリンダ４に吸引さ
れ、ピストン２の圧縮工程にて７リンターヘソト５を経
て吐出ザイレンザ８へ排出される構造となっており、竹
に金属機と金属管より製作した吸込サイレンザ７は、吸
込１」が金が１ｇ端面のため戻り冷媒ガスの捕捉率が悪
く、むしろ圧縮機内に滞溜している高湿冷媒ガスを吸い
易く、ｌた払伝導率の大きい金属製であるため、置溝の
シリンダヘッド５よ、りの熱の伝達によって加熱をうけ
易く、冷媒ガスが加温きれて比容積を増大させ、圧縮機
の実仕事を減少させ、圧動機の効率を低下させるという
大きな欠点があった。
この欠点を最少に抑制する方策として捕捉効率のすぐれ
たフードを備えた吸込サイレンサを熱絶縁性の良い月利
、例えばＩＪｓ　ｎＪ塑性プラスチックで製、作するこ
とが考えられるが、箱形形状のフード機能を有する吸込
１」、拡張室、共鳴室および冷媒流路を必要とする複雑
形牡の吸込ザイレンザを一体で射出成形することは金型
構造上回ｍ１ｔｉであり、実用的には複数に分割して、
接合する組立方式をとる必要がある。しかしながら従来
の１ラスナツクの接合方法、例えば熱板を使用して突合
せ接着面を接触手動によって溶融した後、突合せて接着
する動板溶着方法や超音波振動エネルギーで溶融させる
接着法やエポキシ樹脂で代表される熱硬化性接着剤で加
熱硬化させる方法ではいずれの場合においても冷媒流路
の内壁に溶融パリ、糸ひき。
樹脂粉などの欠陥を発生し、これらは冷媒流路の内部抵
抗となったり、吸込バルブの損傷およびピストンシリン
ダのロックを起して圧縮機としての機能を停止する恐れ
があり、信頼性に欠けるものである。また、＃（硬化性
接着剤の塗布作業および加熱硬化作業は生産性を著しく
阻害するという大きな欠点があった。
〔発明の目的〕
本発明の目的は祷数個よりなるブラスチノクサイレンサ
において、冷媒流路の内（＋１１１に溶融）・りや糸引
きなどの欠陥を生じさせることなく、かつ最少の熱源で
効率よく溶着し、強度、気密性１寸法精度などの信頼性
と短時間溶着加工性を有する製造方法によって、高性能
の圧縮機用吸込サイレンザを提供することにある。
〔発明の概要］ プラスヂノクザイレンザの冷媒流路に浴融ノ・りや糸引
きや樹脂粉を出さずに溶着する方法として予め突合せ外
４１１１１面に隙間を設け、抑圧により密着させた状ｐ
、Ｈで外部に突出したフランジ部の突ψ；ｈ１を全周に
わたって非接触式の凱風によって溶融共（＝Ｊする方法
を見い出した。この方法で溶着すると、冷媒流路の内偵
１突合せ面には常に押伺力が作用しており、この力によ
って内（Ｈ１ｌ重合せ而の７−ル性を可能に１７、気密
性お上ｔカ信頼＋１のすぐれた冷媒が１、路の製造がＤ
Ｊ能となった。この押（＝Ｊ力を強化する方法としては
予め突合せ外（１１１面の隙間を大きくすること、肉ｊ
ワを大きくとることおよび曲げ弾性率の大きいガラス繊
組−強化プラスチックを使用することによりｎＪ能であ
ることを見い出した。ここで使用ｏＪ能なプラスチック
は耐熱性を有し、局部的に加熱をうけると瞬時に溶融し
、低粘度となる結晶性樹脂、例えばポリブチレンテレフ
タレート樹脂、ポリエヂレンデレフタレート樹脂、ポリ
アセタール樹脂、ポリアミド樹脂、ポリプロピレン樹脂
などで、こｉｔ　Ｃ，は隙間によく流れ込み、気密性、
溶着強度がすぐれると同時に、突合せ溶着面が平滑とな
り外観的にも美しい溶着面を形成する特長がある。
〔発明の実施例〕
以下本発明の一実施例を第２図、第５図、第４図および
第５図により説明する。
第２図は吸込口８．？冷媒流路９．拡張室１０゜共鳴室
１３を有するプラスチノクーリーイレンサの一例を示す
ものであり、吸込］」８．拡張室１０．冷媒ＩＡ）、路
９および共鳴室１６の一部を形成するザイレンザ本体部
７−１と外ｍｉｌ＋のフランジ状突合せ面１１を有する
馬蹄形の冷媒流路と共鳴室の一部を形成する上下−絹の
Ｕ字形ザイレンザ部品７−２；＋　、　７−２　ｂの６
部品より分割構成用能なプラスチソクザイレンサの外観
、斜視図であり、１１は上下−組のＵ字形サイレンサ部
品７−２ａ、７−２１〕の接合面、１２はサイレンザ本
体部７−１とＵ字形サイレンサ部品７−２ａ、７−２ｂ
の接合部分を示すものである。
以下、本発明によつ゛てなされた溶融パリを出さずに気
密性のすぐれた冷媒流路９を製作する方法について詳述
すると、第６図および第４図のＡ　−Ａ断面図に示すご
とくなる。すなわち−組のＵ字形ザイレンザ部品７−２
ａ、７−２ｂを第６図に示すごとく冷媒流路９の内側突
合ぜ部１４によってセットし、外１１１１突合せ部の上
フランジ部１１−１および下フランジ部１１−２の間に
適当な隙間を設け、次に押イτ１治具１５によって全周
にわたって押伺けてフランジ部を密着させた状態で、フ
ランジ部突端に〃（風を吹伺け、フランジ突端を溶融共
４７Ｊけすると第４図に示すごとく、冷媒流路９のフラ
ンジ部１１および内（１ｉ１１突合せ面１４は気密性の
すぐれたシール面を形成する。フランジ部は溶融が合せ
面の外（＋１１１突端から始捷るので溶融パリが冷媒流
路側にはみ出すことはなく、捷だ溶着強１ｗの点におい
ても冷媒流路９が負圧となるので突合せ面に外側から圧
力が働くような使い方となるため、未溶着部に応力集中
して破壊をおこす恐ｉｔはない。
フランジ部１１の溶融速度をより能率よく行うためには
、フランジ部の肉厚を冷媒流路９の肉厚より薄くして、
勿（風によって速やかに加熱溶融することがよく、また
押付治具１５の一部が熱風を遮断するような形状にして
押え伺はオ′しばフランジ部突端のみを選択的しで能率
よく溶融接着することが可能である。このようにして溶
着すると最少の熱源ですむので、電気代の節約ができる
と同時に、ザイレ／ザ全体の熱による損傷や変形をなく
すことができるので、寸法精度および外観的によいもの
が得られる。第４図に示す冷媒流路９と共鳴室１６の突
合せ部１４の気密レール性はセント時の上フランジ１１
−１と下フランジ１１−２の隙間の大きさと冷媒流路９
の肉厚の大きさとプラスチック材料の曲は弾性率によっ
て任意の大きさの押伺力を発生さぜることかできるので
、長期ｉＪ］の信牙貝性が維持できる。突合せ部１４の
形状は第５図に示す平面突合せ１４よりも階段突合ぜ１
６．凹凸のωζ合突合せ１７などの形状の糾合ぜによっ
て更に気臂）性を改善することができ、さらに上下−組
のザイレンザ部品７−２ａ、７−２ｂのセット作業時の
位置合せとして有効に活用できるものである。
ここで使用できる熱可塑性プラスチックは加熱によって
瞬間的に溶融し、低い粘度の溶融物となる結晶性プラス
チック、例えはポリブチレンプレフタレート樹脂、ポリ
エチレンテレフタレーＩ・樹脂、ポリアセタール樹脂、
ポリアミド樹脂、ボリブロヒレン樹脂、ポリエーテルサ
ルフメン樹脂。
弗素樹脂などが望ましく、これらの拉↑脂溶融物は突合
せ部の細部に浸透するのですぐれむ気密性および接着強
度ならびに平滑外観を得ることができる。また、これら
の樹脂はガラス繊維を充填させる。ことにより曲げ弾性
率を向上できるので、耐熱変形性Ｉｊ法精度および突合
せシール性を大巾に改善できると同時に、電動圧縮機の
使用環境である１制油性、百１フロン性についてもすぐ
れた面１久性を兼ねそなえている。
次にザイレンザ本体７−１とＵ字形ザイレンザ部品７−
２との突合せ面の溶着は前述した本発明の方法と同様な
方法によって容易にできるものである。
以上のごとく複イイ／Ｉ　Ｗｉ造のグラスチックサイレ
ンザは複数個に分割して射出成形し、本発明の溶着接合
によって能率よく容易に製作することが可能となった。
〔発明の効果〕
本発明によれば冷媒ガスの吸込口、冷媒流路。
拡張室、共鳴室などより構成する複雑形状の吸込ザイレ
ンザ’を熱絶縁物質である熱可塑性プラスチックで、射
出成形および熱風溶着により、容易にしかも安価に製造
できるようになるので、これを電動圧縮機に使用するこ
とにより、従来の金属製ザイレンザに比べて冷媒ガスの
加熱を大ｌｊに少なくできるので、実仕事用および圧縮
機の効率を大ｒｌに改善できる。この圧縮機を′−１ヨ
気冷皺Ｉｄｔ　Ｋ組込むと消費１１コ′力の低減をはか
ることがてきる。
【図面の簡単な説明】
第１図は密閉形電動圧縮機の構造を示す斜視図、第２図
は本発明の一実施例を示すプラスチノクザイレンザの旧
視図、第５図は第２図のＡ−Ａ、Ｖｉ！の転職溶着を示
す断面図、第４図は第５図の溶着後の断面図、第５図は
冷媒流路の突合せの一例を・示す断面図である。 １・・・クランクンヤフト、２・・・ピストン、６・１
．電動機、４・・・シリンダ、５・・・シリンダヘッド
、６・・・吸込バイブ、７・・・サイレンザ、７−１・
・・ザイレンザ本体、７−２・・・Ｕ字形ザイレンザ部
品、７−２ａ・・・［）字形ザイレンザ部品（上側）、
７−２ｂ・・・］］Ｊ字形→ノーイレンーリド’ｉｔｓ
品下（＋ｔｌｌ　）、８・・・吸込口、９・・・冷媒ガ
ス流路、１０・・・拡張室、１１・・・熱溶着したフラ
ッジ部、１１−１・・・突出しだフランジ部（」−佃）
、１ｉ−２・・・突出したフランジ部（下イｌ’ｌ１１
　）、１２・・・７−１と７−２の熱風溶着部、１３・
・・共鳴室、１４・・・流路内４１＋１１の平板突合ぜ
部、１５・・・押伺冶具、１６・・・流路内倶１の最旧
き突合ぜ部、１７・・・流路内（＋１１１の凹凸突合せ
部。 ′＄１図 第１頁の続き ０発　明　者　旭野芳男 栃木県下部賀郡大平町大字富田 ８００株式会社日立製作所栃木工 場内

Claims (1)

  1. 【特許請求の範囲】 グラスチック製吸込ザイレンサ本体（７−１）。 （７−２）を組合せてなるザイレンサにおいて、その両
    ザイレンザ本体の突合せ部分に外側に若干突出するフラ
    ンジ部（１１−１）　、　（１１−２）を全周ニワたっ
    て形成し、このフランジ部（１１−１）。 （１１−２）の肉厚を前記ザイレンサ本体（７−２ａ）
    。 （７−２ｂ）の肉厚より薄くし、前記ザイレンザ本体を
    両１１１１１よりフランジ部分に隙間をあけて、押え治
    具（１５）で押圧しながら突合せ部に臥風を吹きかけて
    、前記突合せフランジ部分を溶融して共伺けすることを
    特徴とする密閉形圧縮機のプラスチ゛ノクサイレンザの
    製造方法。
JP57170893A 1982-10-01 1982-10-01 密閉形電動圧縮機のプラスチツクサイレンサの製造方法 Pending JPS5963379A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57170893A JPS5963379A (ja) 1982-10-01 1982-10-01 密閉形電動圧縮機のプラスチツクサイレンサの製造方法
AU19774/83A AU1977483A (en) 1982-10-01 1983-09-29 Manufacture of plastic silencer
KR1019830004608A KR850001413B1 (ko) 1982-10-01 1983-09-29 밀폐형(密閉型) 압축기(壓縮機)의 플라스틱 소음기(消音機)의 제조 방법
ES526145A ES8406943A1 (es) 1982-10-01 1983-09-30 Un metodo de producir un silenciador plastico

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57170893A JPS5963379A (ja) 1982-10-01 1982-10-01 密閉形電動圧縮機のプラスチツクサイレンサの製造方法

Publications (1)

Publication Number Publication Date
JPS5963379A true JPS5963379A (ja) 1984-04-11

Family

ID=15913265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57170893A Pending JPS5963379A (ja) 1982-10-01 1982-10-01 密閉形電動圧縮機のプラスチツクサイレンサの製造方法

Country Status (4)

Country Link
JP (1) JPS5963379A (ja)
KR (1) KR850001413B1 (ja)
AU (1) AU1977483A (ja)
ES (1) ES8406943A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643275A (en) * 1987-06-26 1989-01-09 Matsushita Refrigeration Muffling device for compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643275A (en) * 1987-06-26 1989-01-09 Matsushita Refrigeration Muffling device for compressor

Also Published As

Publication number Publication date
AU1977483A (en) 1984-04-05
ES526145A0 (es) 1984-08-16
KR850001413B1 (ko) 1985-09-30
KR840006392A (ko) 1984-11-29
ES8406943A1 (es) 1984-08-16

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