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JP3843315B2 - プラスチック熱交換機の管群ヘッダ接合方法及びヘッダタンク接合方法 - Google Patents

プラスチック熱交換機の管群ヘッダ接合方法及びヘッダタンク接合方法 Download PDF

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JP3843315B2
JP3843315B2 JP2001292792A JP2001292792A JP3843315B2 JP 3843315 B2 JP3843315 B2 JP 3843315B2 JP 2001292792 A JP2001292792 A JP 2001292792A JP 2001292792 A JP2001292792 A JP 2001292792A JP 3843315 B2 JP3843315 B2 JP 3843315B2
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heat
plastic
tube group
fin
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JP2002225138A (ja
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ジャン ソク リ
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LG Electronics Inc
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LG Electronics Inc
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Priority claimed from KR1020010001599A external-priority patent/KR100366431B1/ko
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    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped 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
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt 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
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53465—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat said single flat elements being provided with holes facing the tube ends, e.g. for making heat-exchangers
    • 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
    • B29C66/81427—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B29C66/81429—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/187—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding at least one of the parts being non-metallic, e.g. heat-sealing plastic elements
    • 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
    • B29C66/81—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
    • B29C66/81415—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 bevelled
    • B29C66/81417—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 bevelled being V-shaped
    • 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
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/18—Heat-exchangers or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes
    • B29L2031/602—Multi-tubular articles, i.e. composed of a plurality of tubes composed of several elementary tubular elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は熱交換機の管群ヘッダ接合方法及びヘッダタンク接合方法に関するものであり、特に熱交換機の材質をプラスチックで製作してフィン−管群と管群ヘッダを熱融着で結合して、フィン−管群とヘッダタンクを超音波融着させたプラスチック熱交換機の管群ヘッダ接合方法及びヘッダタンク接合方法に関するものである。
【０００２】
【従来の技術】
従来の冷蔵庫用蒸発器に用いられる熱交換機は図６に図示されたように、多重の冷媒入口管２と冷媒出口管３とで形成される金属冷媒管１の外周にフィン４が形成されており、金属冷媒管１の左右側端には材質が金属である左側ヘッダ（図示せず）と右側ヘッダ６とが接合され、前記の金属冷媒管１の両側には除霜管７が設けられる。
前記のように構成された従来の熱交換機の作用を簡単に説明すると次の如くである。
【０００３】
蒸発器左側端の冷媒入口管２より流入した冷媒は水平蛇行状に形成された冷媒管を通って冷媒出口管３に至る。この過程で冷媒が蒸発過程を経て潜熱と現熱交換を通した熱交換を行う。この時冷媒出口管３を経た冷媒はアキュムレータ８を経るようになり、これは冷蔵庫周囲環境条件別負荷対応のための冷媒貯蔵タンクの役割と水−液分離器の２種の役割をする。除霜管７は蒸発器表面に付着される氷を周期的に除去しなければならないので電気加熱式ヒーターが用いられて、除霜管と接触するのはフィン端部でありほとんど線接触している。
【０００４】
図７及び図８は従来の冷蔵庫用蒸発器に用いられる他の熱交換機としてフィン−冷媒管−除霜管が一体に形成されたトライチューブ（Ｔｒｉ−ｔｕｂｅ）蒸発器である。
図７及び図８に図示されたように金属冷媒管１１の外周にフィン１２が形成されており、フィン１２の外周に除霜管１３が形成されている。
冷媒が蒸発器左側端のトライチューブ１０左側端を通して流入して蛇行状に形成されたトライチューブ１０を流れるようになっており、全体を流れて最終的にトライチューブ右側冷媒管１４の出口にあるアキュムレータ１５を経て流出されるようにした構造である。
【０００５】
前記したように従来のフィン−管蒸発器は金属冷媒管１１とフィン１２が冷媒管１１の拡管によって結合された構造であり、冷媒管１１の出口端にアキュムレータ１５が熔接で接合されて冷蔵庫オン／オフ時騒音を誘発する。したがって本発明のようにプラスチック材質の熱交換機にはこのような従来の結合方法を用いることはできない。
【０００６】
【発明が解決しようとする課題】
本発明は前述したような問題点を解決するためのものであり、本発明の目的は、プラスチック材質のフィン−管群に管群ヘッダ及びヘッダタンクを接合することにおいて、管群ヘッダ及びヘッダタンクをフィン−管群とくっ付けた後熱融着機で加圧して熱融着させたプラスチック熱交換機の管群ヘッダ接合方法及びヘッダタンク接合方法を提供することにある。
【０００７】
したがって、本発明は熱交換機の材質をプラスチックに変更してプラスチック圧出によりフィンと管を一体としたことを特徴とし、この時ヘッダを予め形成された圧出管に重畳して加熱させるプラスチック熱交換機の管群ヘッダ接合方法と、前記管群ヘッダをヘッダタンクに超音波融着させるプラスチック熱交換機のヘッダタンク接合方法を提供する。
【０００８】
【課題を解決するための手段】
本発明は前記の目的を達成するためにプラスチック材質の一定間隔の多数の冷媒管の外周にプスチック材質のフィンを一体に形成するフィン−管群形成段階と、前記プラスチック材質のフィン−管群における前記多数の冷媒管の両側端に管群ヘッダを射出形成する段階と、プラスチック材料の前記管群ヘッダを熱融着治具で支えて、熱融着成形金型が形成された熱融着機により前記フィン−管群を加圧して前記フィン−管群と前記管群ヘッダを一体に熱融着接合させる段階を含んで構成されたことを特徴とするプラスチック熱交換機の管群ヘッダ接合方法を提供する。
【０００９】
本発明は前記の目的を達成するために前記熱融着機の熱融着成形金型の断面は逆三角形であることを特徴とするプラスチック熱交換機の管群ヘッダ接合方法を提供する。
本発明は前記の目的を達成するために前記フィン−管群と管群ヘッダが接合される部分である加熱融着部は熱融着機によって３００〜３２０℃に維持した状態で素材厚さの５０％まで加熱圧着することを特徴とする熱交換機の管群ヘッダ接合方法を提供する。
【００１０】
本発明は前記の目的を達成するためにプラスチック材質の一定間隔の多数の冷媒管の外周にプスチック材質のフィンを一体に形成するフィン−管群形成段階と、前記プラスチック材質のフィン−管群における前記多数の冷媒管の両側端に管群ヘッダを射出形成する段階と、前記プラスチック材質の管群ヘッダ上にプラスチック材質のヘッダタンクを結合する段階と、前記プラスチック材質のヘッダタンク上に熱発生装置を当接して、該熱発生装置を通して前記プラスチック材質のヘッダタンクと前記プラスチック材質の管群ヘッダとの接合部を熱融着させる段階とを含んで構成されたことを特徴とするプラスチック熱交換機のヘッダタンク接合方法を提供する。
【００１１】
本発明は前記の目的を達成するために前記熱発生装置は圧電装置であることを特徴とするプラスチック熱交換機のヘッダタンク接合方法を提供する。
本発明は前記の目的を達成するために前記圧電装置は１５，０００／sec の機械的な上／下振動エネルギーを維持させるようにし、可振増幅は０．０６〜０．０８mm（ｐ−ｐ）であることを特徴とするプラスチック熱交換機のヘッダタンク接合方法を提供する。
【００１２】
【発明の実施の形態】
以下、添付した図面を参照しながら本発明をより詳細に説明する。
本発明によるプラスチック熱交換機１１２は図１に図示されたように、プラスチック材質の冷媒管１１４の外周にプラスチック材質のフィン１１６が一体に形成された後冷媒管１１４の端に図２に図示されたような管群ヘッダ１２０を嵌めてその上に図３に図示されたようなプラスチック材質の左右側ヘッダタンク１２４，１２６を各々接合したことである。
【００１３】
本発明のプラスチック熱交換機１１２を更に詳細に説明すると図１に図示されたように、一定間隔で多数形成された冷媒管１１４の外周にフィン１１６が形成される。本発明で別途に特定しなければ熱交換機の構成品はすべてプラスチック材質である。冷媒管１１４とフィン１１６は一体に形成されており、フィン−管群１１８の意味は多数の冷媒管１１４と多数のフィン１１６の集合を称する。
【００１４】
フィン−管群１１８の左側には左側ヘッダタンク１２４が結合されて、フィン−管群１１８の右側には右側ヘッダタンク１２６が結合される。前記の右側ヘッダタンク１２６には下部に冷媒入口管１３０が連結されて、上部に冷媒出口管１３２が連結される。
フィン−管群１１８と管群ヘッダ１２０の結合方法を詳細に説明すると次のようである。図２に図示されたように、フィン−管群１１８に管群ヘッダ１２０を射出形成する。
【００１５】
前記でフィン−管群１１８に管群ヘッダ１２０を射出形成した後にもその結合部の強度が弱いのでフィン−管群１１８の端部と管群ヘッダ１２０の上部一側を熱融着で結合する。熱融着方法は管群ヘッダ１２０の底面を、管群ヘッダを位置固定する熱融着治具金型１３６で支えた後、逆三角形（▽）形態の熱融着成形金型１３４を有する熱融着機１２８でフィン−管群１１８の上端を加圧する。
【００１６】
すなわち、一定間隔で多数形成されたフィン−管群１１８と一致するように多数の熱融着成形金型１３４を形成して、熱融着機１２８でフィン−管群１１８の上端を加圧した状態で熱融着機１２８に電源を供給すればフィン−管群の上端が熱により拡管されながらフィン−管群の外周に接触した管群ヘッダと一体に熱融着される。（参照番号１３８はフィン−管群と管群ヘッダが熱融着機によって熱融着された部分を示したことである。）
【００１７】
管群ヘッダ１２０とヘッダタンク１２４，１２６の結合方法を詳細に説明すると次の如くである。
図１と図３に図示されたように、フィン−管群１１８をヘッダタンク１２４，１２６に結合するためにはまずフィン−管群１１８の一端にフィン−管群１１８を固定させる管群ヘッダ１２０が設けられる。ここでフィン−管群１１８に管群ヘッダ１２０が射出形成され一体に形成される。
管群ヘッダ１２０にはヘッダタンク１２４，１２６が超音波によって加熱融着されるが、管群ヘッダ１２０とヘッダタンク１２４，１２６の結合方法は図４と図５に図示された如くである。
【００１８】
図４と図５に図示されたように、管群ヘッダ１２０の中央上部にヘッダタンク１２４，１２６の分離台１３３端部を一側管群ヘッダ１２０と他の一側管群ヘッダ１２０間に密着させた後ヘッダタンク１２４，１２６上で圧電装置１２９を通して機械的な振動エネルギーが与えられることによって管群ヘッダ１２０とヘッダタンク１２４，１２６が超音波モールディングで接合される。
【００１９】
すなわち、圧電装置１２９により１５，０００／sec の機械的な上、下振動エネルギーに変換する過程を伴って、この過程でヘッダタンク１２４，１２６が管群ヘッダ１２０と結合される。この時可振増幅は０．０６〜０．０８mm（ｐ−ｐ；ｐｅａｋ ｔｏ ｐｅａｋ）であり、摩擦熱による試料接着時間は長くても１秒内に行われる。
【００２０】
【発明の効果】
前述したように、本発明によると冷媒管の出口端に設けられたアキュムレータによって冷蔵庫オン／オフ時生じた異常騒音を無くすことができて、熱融着でフィン−管群と管群ヘッダを接合して管群ヘッダとヘッダタンクを超音波接合することによりプラスチック材質の熱交換機製作が容易であって、その結果として熱交換機の製造原価を節減できる。
【図面の簡単な説明】
【図１】本発明によるプラスチック熱交換機の概略図で、（ａ）は上面図、（ｂ）は正面図である。
【図２】本発明によるプラスチック熱交換機において、フィン−管群と管群ヘッダの結合過程を示した図である。
【図３】本発明によるプラスチック熱交換機において、フィン−管群と管群ヘッダ及びヘッダタンクが結合された状態を示した断面図である。
【図４】本発明によるプラスチック熱交換機において、フィン−管群と管群ヘッダ及びヘッダタンクが接合される過程を示した図である。
【図５】本発明によるプラスチック熱交換機において、管群ヘッダとヘッダタンクを圧電装置を利用して接合させる方法を示した図である。
【図６】従来の冷蔵庫の蒸発器として用いられる熱交換機の概略図で、（ａ）は正面図、（ｂ）は側面図である。
【図７】従来の冷蔵庫の蒸発器として用いられる他の熱交換機の概略図で、（ａ）は側面図、（ｂ）は正面図である。
【図８】図７に適用されるトライチューブの概念図である。
【符号の説明】
１１２…プラスチック熱交換機
１１４…冷媒管
１１６…フィン
１１８…フィン−管群
１２０…管群ヘッダ
１２４…左側ヘッダタンク
１２６…右側ヘッダタンク
１２８…熱融着機
１２９…圧電装置
１３０…冷媒入口管
１３２…冷媒出口管
１３３…分離台
１３４…熱融着成形金型
１３６…熱融着治具金型
１３８…熱融着部
１４０…電源

Claims (6)

  1. プラスチック材質の一定間隔の多数の冷媒管の外周にプスチック材質のフィンを一体に形成するフィン−管群形成段階と、前記プラスチック材質のフィン−管群における前記多数の冷媒管の両側端に管群ヘッダを射出形成する段階と、プラスチック材料の前記管群ヘッダを熱融着治具で支えて、熱融着成形金型が形成された熱融着機により前記フィン−管群を加圧して前記フィン−管群と前記管群ヘッダを一体に熱融着接合させる段階を含んで構成されたことを特徴とするプラスチック熱交換機の管群ヘッダ接合方法。
  2. 前記熱融着機の熱融着成形金型の断面は逆三角形であることを特徴とする請求項１に記載のプラスチック熱交換機の管群ヘッダ接合方法。
  3. 前記フィン−管群と管群ヘッダが接合される部分である加熱融着部は熱融着機によって３００〜３２０℃に維持した状態で素材厚さの５０％まで加熱圧着することを特徴とする請求項１に記載の熱交換機の管群ヘッダ接合方法。
  4. プラスチック材質の一定間隔の多数の冷媒管の外周にプスチック材質のフィンを一体に形成するフィン−管群形成段階と、前記プラスチック材質のフィン−管群における前記多数の冷媒管の両側端に管群ヘッダを射出形成する段階と、前記プラスチック材質の管群ヘッダ上にプラスチック材質のヘッダタンクを結合する段階と、前記プラスチック材質のヘッダタンク上に熱発生装置を当接して該熱発生装置を通して前記プラスチック材質のヘッダタンクと前記プラスチック材質の管群ヘッダとの接合部を熱融着させる段階とを含んで構成されたことを特徴とするプラスチック熱交換機のヘッダタンク接合方法。
  5. 前記熱発生装置は圧電装置であることを特徴とする請求項４に記載のプラスチック熱交換機のヘッダタンク接合方法。
  6. 前記圧電装置は１５，０００／sec の機械的な上／下振動エネルギーを維持させるようにし、可振増幅は０．０６〜０．０８mm（ｐ−ｐ）であることを特徴とする請求項５に記載のプラスチック熱交換機のヘッダタンク接合方法。
JP2001292792A 2001-01-11 2001-09-26 プラスチック熱交換機の管群ヘッダ接合方法及びヘッダタンク接合方法 Expired - Fee Related JP3843315B2 (ja)

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