JP2017159856A - Evaporator with cold storage function - Google Patents

Evaporator with cold storage function Download PDF

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JP2017159856A
JP2017159856A JP2016048410A JP2016048410A JP2017159856A JP 2017159856 A JP2017159856 A JP 2017159856A JP 2016048410 A JP2016048410 A JP 2016048410A JP 2016048410 A JP2016048410 A JP 2016048410A JP 2017159856 A JP2017159856 A JP 2017159856A
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refrigerant
cold storage
pair
storage material
plates
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武人 岡田
Taketo Okada
武人 岡田
小山　幸男
Yukio Koyama
幸男 小山
隆哉 有本
Takaya Arimoto
隆哉 有本
義謙 石田
Yoshikane Ishida
義謙 石田
和生 中所
Kazuo Nakadokoro
和生 中所
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Marelli Corp
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Calsonic Kansei Corp
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Priority to JP2016048410A priority Critical patent/JP2017159856A/en
Priority to US16/083,625 priority patent/US10906380B2/en
Priority to PCT/JP2017/008963 priority patent/WO2017154889A1/en
Publication of JP2017159856A publication Critical patent/JP2017159856A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

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Abstract

PROBLEM TO BE SOLVED: To provide an evaporator with a cold storage function capable of securely preventing both end parts of a pair of cold storage plates of a cold storage material container from biting into an overlapped portion between adjacent tank forming parts of a refrigerant tube.SOLUTION: An evaporator 10 with a cold storage function comprises: a plurality of refrigerant tubes 30 having refrigerant channels 32, 33, and arranged in parallel with each other at an interval; and a cold storage material container 40 which is joined with adjacent refrigerant tubes 30, 30 of the plurality of refrigerant tubes 30 in a sandwiched state therebetween and in which a cold storage material B is filled. Stopper parts 45 are formed, at vertical both end parts of a pair of cold storage plates 41, 41 constituting the cold storage material container 40, to regulate positions by contacting respective tank forming parts 20a, 21a at vertical both end sides of a pair of refrigerant plates 31, 31 constituting a refrigerant tube 30.SELECTED DRAWING: Figure 2

Description

本発明は、隣接する冷媒チューブ同士間に蓄冷材が充填される蓄冷材容器を挟んだ蓄冷機能付きエバポレータ（蒸発器）に関する。   The present invention relates to an evaporator (evaporator) having a cold storage function in which a cold storage material container filled with a cold storage material is sandwiched between adjacent refrigerant tubes.

車両の一部には、信号待ち等の車両の一旦停止時にエンジンを一停止することで燃費の向上を図るいわゆるアイドル・ストップ機能が設けられたものがある。このような車両にあっては、空調装置を作動していると、アイドル・ストップ機能によりエンジンが一時停止することから、エンジンの動力により駆動されている空調システムの圧縮機（コンプレッサ）の駆動も停止する。そうすると、そのシステムで使用されている冷媒の循環も停止し、冷房能力が発揮されなくなる。   Some vehicles are provided with a so-called idle stop function that improves fuel efficiency by stopping the engine once when the vehicle is temporarily stopped, such as waiting for a signal. In such a vehicle, when the air conditioner is in operation, the engine is temporarily stopped by the idle stop function. Therefore, the compressor (compressor) of the air conditioning system driven by the engine power is also driven. Stop. If it does so, the circulation of the refrigerant | coolant currently used with the system will also be stopped, and cooling capacity will not be exhibited.

そこで、エンジンの一時停止中であっても冷気を車室内に供給可能にするため、蓄冷材を備えて、この蓄冷材と冷媒との間で熱交換可能にして蓄冷材に冷熱を蓄えておき、アイドル・ストップ時に蓄冷材の冷熱を冷房に利用するようにした蓄冷機能付きエバポレータが用いられる。このような従来の蓄冷機能付きエバポレータとしては、例えば特許文献１に記載のものが知られている。   Therefore, in order to allow cold air to be supplied to the passenger compartment even when the engine is temporarily stopped, a cold storage material is provided, and heat can be exchanged between the cold storage material and the refrigerant so that cold energy is stored in the cold storage material. In addition, an evaporator with a cold storage function is used in which the cold energy of the cold storage material is used for cooling during idle stop. As such a conventional evaporator with a cold storage function, for example, the one described in Patent Document 1 is known.

この特許文献１の従来の蓄冷機能付きエバポレータは、互いに間隔をおいて並列状に配置された複数の冷媒チューブを有し、この複数の冷媒チューブのうち隣接する冷媒チューブ同士間に蓄冷材を充填した蓄冷材容器を挟む構造になっていて、冷凍サイクル装置のエバポレータに蓄冷機能を持たせることで車両走行中に冷熱を蓄え、この冷気を車両停止中に用いるものである。即ち、各冷媒チューブは、扁平状に形成され、内部に冷媒流路を有し、この冷媒チューブに平行に配置され、接合される蓄冷材容器は、広い扁平面を両側面に有し、この両側面の接合側には、蓄冷時に発生する凝縮水又は氷を排出しやすくするように複数の凸部が傾斜形状に突出形成されている。また、蓄冷材容器内にはインナーフィンを搭載している。   The conventional evaporator with a cold storage function of Patent Document 1 has a plurality of refrigerant tubes arranged in parallel at intervals, and a cold storage material is filled between adjacent refrigerant tubes among the plurality of refrigerant tubes. The cold storage material container is sandwiched, and the evaporator of the refrigeration cycle apparatus has a cold storage function to store cold heat while the vehicle is running, and this cold air is used while the vehicle is stopped. That is, each refrigerant tube is formed in a flat shape, has a refrigerant flow path inside, and is arranged in parallel to the refrigerant tube, and the cold storage material container to be joined has wide flat surfaces on both side surfaces. A plurality of convex portions are formed in an inclined shape so as to facilitate the discharge of condensed water or ice generated during cold storage on the joint side of both side surfaces. Moreover, the inner fin is mounted in the cool storage material container.

特許第５７９６５３０号公報Japanese Patent No. 5796530

しかしながら、前記従来の蓄冷機能付きエバポレータでは、蓄冷材容器の上下方向の両端部が複数の冷媒チューブの上下方向の両側に位置する冷媒流通用のタンクに直接当たる構造になっているため、タンクが積層されている場合にはそれらの重ね合わせ部の間に蓄冷材容器の両端部が噛み込み易かった。   However, the conventional evaporator with a cold storage function has a structure in which both ends in the vertical direction of the cold storage material container directly contact the refrigerant circulation tanks located on both sides in the vertical direction of the plurality of refrigerant tubes. In the case of being stacked, both end portions of the cold storage material container were easily bitten between the overlapping portions.

そこで、本発明は、前記した課題を解決すべくなされたものであり、冷媒チューブの隣接するタンク形成部の重ね合わせ部の間に蓄冷材容器の一対の蓄冷プレートの両端部が噛み込むのを確実に防止することができる蓄冷機能付きエバポレータを提供することを目的とする。   Therefore, the present invention has been made to solve the above-described problems, and the both ends of the pair of cold storage plates of the cold storage material container are bitten between the overlapping portions of the tank forming portions adjacent to the refrigerant tube. An object is to provide an evaporator with a cold storage function that can be reliably prevented.

本発明は、冷媒流路を有し、互いに間隔をおいて並列状に配置された複数の冷媒チューブと、前記複数の冷媒チューブのうち隣り合う冷媒チューブ同士の間に挟まれて接合され、蓄冷材が充填される蓄冷材容器と、を備えた蓄冷機能付きエバポレータであって、前記冷媒チューブを、上下方向の両側に筒状に形成された一対のタンク形成部と、この一対のタンク形成部を一体に形成し、重ね合わせて形成することで内部に該一対のタンク形成部に連通する前記冷媒流路を形成する一対の冷媒プレートと、この一対の冷媒プレートの冷媒流路内に収容され、熱交換を促進させる熱交換促進部とで構成し、前記蓄冷材容器を、前記蓄冷材が充填される収容凹部を有する一対の蓄冷プレートを重ね合わせて形成し、前記一対の蓄冷プレートのうちの少なくとも一方の蓄冷プレートの上下方向の両端部に前記一対の冷媒プレートの上下方向の両側の各タンク形成部に当接するストッパ部を形成したことを特徴とする。   The present invention has a refrigerant flow path, and is joined between a plurality of refrigerant tubes arranged in parallel at intervals and sandwiched between adjacent refrigerant tubes among the plurality of refrigerant tubes. An evaporator with a cold storage function, comprising a pair of tank forming portions formed in a cylindrical shape on both sides in the vertical direction, and the pair of tank forming portions. Are integrally formed and overlapped to form a pair of refrigerant plates that form the refrigerant flow paths communicating with the pair of tank forming portions, and are accommodated in the refrigerant flow paths of the pair of refrigerant plates. A heat exchange promoting part that promotes heat exchange, and the cold storage material container is formed by superposing a pair of cold storage plates having an accommodation recess filled with the cold storage material, and among the pair of cold storage plates of Characterized in that the formation of the contact with the stopper portion in the tank formation portions on both sides in the vertical direction of the pair of coolant plates at both ends in the vertical direction of one of the cold storage plate even without.

本発明によれば、冷媒チューブを、上下方向の両側に筒状に形成された一対のタンク形成部と、この一対のタンク形成部を一体に形成し、重ね合わせて形成することで内部に該一対のタンク形成部に連通する冷媒流路を形成する一対の冷媒プレートと、この一対の冷媒プレートの冷媒流路内に収容され、熱交換を促進させるインナフィンとで構成し、蓄冷材容器を、蓄冷材が充填される収容凹部を有する一対の蓄冷プレートを重ね合わせて形成し、一対の蓄冷プレートのうちの少なくとも一方の蓄冷プレートの上下方向の両端部に一対の冷媒プレートの上下方向の両側の各タンク形成部に当接するストッパ部を形成したことにより、冷媒チューブの隣接するタンク形成部の重ね合わせ部の間に蓄冷材容器の一対の蓄冷プレートの両端部が噛み込むのを確実に防止することができる。これにより、蓄冷時に発生する凝縮水等の水がストッパ部と各タンク形成部との隙間を通り排水され、凝縮水の滞留を抑制できる。   According to the present invention, the refrigerant tube is formed by integrally forming the pair of tank forming portions formed in a cylindrical shape on both sides in the vertical direction and the pair of tank forming portions so as to overlap each other. A pair of refrigerant plates that form a refrigerant flow path that communicates with the pair of tank forming portions, and an inner fin that is accommodated in the refrigerant flow path of the pair of refrigerant plates and promotes heat exchange. A pair of cold storage plates having storage recesses filled with a cold storage material are formed in an overlapping manner, and at both ends in the vertical direction of the pair of refrigerant plates at both ends in the vertical direction of at least one cold storage plate of the pair of cold storage plates. By forming the stopper portion that contacts each tank forming portion, both ends of the pair of cold storage plates of the cold storage material container are engaged between the overlapping portions of the adjacent tank forming portions of the refrigerant tube. It is possible to reliably prevent Takeno. Thereby, water, such as condensed water generated at the time of cold storage, is drained through the gap between the stopper portion and each tank forming portion, and condensate water can be prevented from staying.

本発明の一実施形態の蓄冷機能付きエバポレータを示す斜視図である。It is a perspective view which shows the evaporator with a cool storage function of one Embodiment of this invention. 上記蓄冷機能付きエバポレータの要部の分解斜視図である。It is a disassembled perspective view of the principal part of the said evaporator with a cool storage function. 上記蓄冷機能付きエバポレータに用いられる冷媒チューブの斜視図である。It is a perspective view of the refrigerant | coolant tube used for the said evaporator with a cool storage function. 上記冷媒チューブの分解斜視図である。It is a disassembled perspective view of the said refrigerant | coolant tube. 上記蓄冷機能付きエバポレータに用いられる蓄冷材容器の側面図である。It is a side view of the cool storage material container used for the said evaporator with a cool storage function. 上記蓄冷材容器の分解斜視図である。It is a disassembled perspective view of the said cool storage material container. 隣接する冷媒チューブの冷媒プレート間に蓄冷材容器を挟み込んだ状態を示す正面図である。It is a front view which shows the state which inserted | pinched the cool storage material container between the refrigerant | coolant plates of an adjacent refrigerant | coolant tube. 上記隣接する冷媒チューブ間に蓄冷材容器を挟み込んだ状態の要部を拡大して示す部分正面図である。It is a partial front view which expands and shows the principal part of the state which pinched | interposed the cool storage material container between the said adjacent refrigerant | coolant tubes. 上記蓄冷機能付きエバポレータの要部の断面図である。It is sectional drawing of the principal part of the said evaporator with a cool storage function. 上記蓄冷材容器を構成する一対の蓄冷プレートの接合状態を示す断面図である。It is sectional drawing which shows the joining state of a pair of cool storage plate which comprises the said cool storage material container. 上記冷媒チューブの端部のタンク形成部と蓄冷材容器の端部の関係を示す部分側面図である。It is a partial side view which shows the relationship between the tank formation part of the edge part of the said refrigerant | coolant tube, and the edge part of a cool storage material container.

以下、本発明の一実施形態を図面に基づいて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１は本発明の一実施形態の蓄冷機能付きエバポレータを示す斜視図、図２は同蓄冷機能付きエバポレータの要部の分解斜視図、図３は同蓄冷機能付きエバポレータに用いられる冷媒チューブの斜視図、図４は同冷媒チューブの分解斜視図、図５は同蓄冷機能付きエバポレータに用いられる蓄冷材容器の側面図、図６は同蓄冷材容器の分解斜視図、図７は隣接する冷媒チューブの冷媒プレート間に蓄冷材容器を挟み込んだ状態を示す正面図、図８は同隣接する冷媒チューブ間に蓄冷材容器を挟み込んだ状態の要部を拡大して示す部分正面図、図９は同蓄冷機能付きエバポレータの要部の断面図、図１０は同蓄冷材容器を構成する一対の蓄冷プレートの接合状態を示す断面図、図１１は冷媒チューブの端部のタンク形成部と蓄冷材容器の端部の関係を示す部分側面図である。   FIG. 1 is a perspective view showing an evaporator with a cool storage function according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a main part of the evaporator with a cool storage function, and FIG. 3 is a perspective view of a refrigerant tube used in the evaporator with the cool storage function. 4 is an exploded perspective view of the refrigerant tube, FIG. 5 is a side view of a cold storage material container used in the evaporator with the cold storage function, FIG. 6 is an exploded perspective view of the cold storage material container, and FIG. 7 is an adjacent refrigerant tube. FIG. 8 is a partial front view showing an enlarged main part in a state where the cold storage material container is sandwiched between the adjacent refrigerant tubes, and FIG. FIG. 10 is a cross-sectional view of the main part of the evaporator with a cold storage function, FIG. 10 is a cross-sectional view showing a joined state of a pair of cold storage plates constituting the cold storage material container, and FIG. 11 is a view of the tank forming portion and the cold storage material container at the end of the refrigerant tube End It is a partial side view showing the engagement.

図１及び図２に示すように、蓄冷機能付きエバポレータ１０は、冷媒流路３２，３３を有し、互いに間隔をおいて左右方向Ｘに並列状に配列された複数の冷媒チューブ３０と、複数の冷媒チューブ３０のうち隣り合う冷媒チューブ３０，３０同士の間に挟まれて接合され、蓄冷材Ｂが充填される蓄冷材容器４０とを備え、アイドル・ストップ機能により車両のエンジンが停止されることでエンジンによって駆動される圧縮機が停止されても、冷媒Ａで冷却されて蓄冷材容器４０内の蓄冷材Ｂに蓄えられた冷熱が放冷されて、冷房能力を維持するものである。尚、図１中矢印Ｙは空調装置の送風の空気流れ方向を示し、矢印Ｚは送風の空気流れ方向Ｙと直交する上下方向を示し、矢印Ｘは左右方向を示す。   As shown in FIG.1 and FIG.2, the evaporator 10 with a cool storage function has the refrigerant | coolant flow paths 32 and 33, the several refrigerant | coolant tubes 30 arranged in parallel in the left-right direction X at intervals, and plural A refrigerant storage container 40 that is sandwiched and joined between adjacent refrigerant tubes 30 and 30 and filled with the cold storage material B, and the engine of the vehicle is stopped by an idle stop function. Thus, even if the compressor driven by the engine is stopped, the cooling heat that is cooled by the refrigerant A and stored in the cool storage material B in the cool storage material container 40 is discharged and the cooling capacity is maintained. In addition, the arrow Y in FIG. 1 shows the air flow direction of the ventilation of an air conditioner, the arrow Z shows the up-down direction orthogonal to the air flow direction Y of ventilation, and the arrow X shows the left-right direction.

図２〜図４に示すように、冷媒チューブ３０は、送風空気流れ方向Ｙと直交する上下方向Ｚの両側に円筒状に形成された各一対のタンク形成部２０ａ，２０ａ及び２１ａ，２１ａと、この各一対のタンク形成部２０ａ，２０ａ及び２１ａ，２１ａが一体形成され、最中合わせに重ね合わせて形成されることで内部に各タンク形成部２０ａ，２１ａに連通する冷媒流路３２，３３が形成される一対の冷媒プレート（金属薄板）３１，３１と、この一対の冷媒プレート３１，３１の冷媒流路３２，３３内に収容され、熱交換を促進する熱交換促進部（インナフィン）３４，３４とで構成され、各タンク形成部２０ａ，２１ａ内に流入された媒体Ａが冷媒流路３２，３３に流通され、一対の冷媒プレート３１，３１の外周を流れる送風空気と冷媒Ａとの間で熱交換を行い、送風空気を冷却するものである。   As shown in FIGS. 2 to 4, the refrigerant tube 30 includes a pair of tank forming portions 20 a, 20 a and 21 a, 21 a formed in a cylindrical shape on both sides in the vertical direction Z orthogonal to the blowing air flow direction Y, The pair of tank forming portions 20a, 20a and 21a, 21a are integrally formed, and are formed so as to overlap each other, so that refrigerant flow paths 32, 33 communicating with the tank forming portions 20a, 21a are formed inside. A pair of formed refrigerant plates (metal thin plates) 31 and 31, and a heat exchange promoting portion (inner fin) 34 which is accommodated in the refrigerant flow paths 32 and 33 of the pair of refrigerant plates 31 and 31 and promotes heat exchange, 34, the medium A that has flowed into the tank forming portions 20a and 21a is circulated through the refrigerant flow paths 32 and 33, and the blast air and the refrigerant A flowing through the outer periphery of the pair of refrigerant plates 31 and 31. It performs heat exchange between, is intended to cool the blown air.

図３及び図４に示すように、冷媒チューブ３０は、一対の冷媒プレート３１，３１の間に熱交換促進部３４，３４を挟み込んだ状態で最中合わせに重ね合わせて形成されている。この一対の冷媒プレート３１，３１は、周縁の接合部３１ｂ同士及び中央の仕切部３１ａ同士が接合されている。また、各冷媒プレート３１の中央の仕切部３１ａと周縁の接合部３１ｂとの間には、第１熱交換通路用凹部３１ｃと第２熱交換通路用凹部３１ｄが並列に形成されている。これにより、一対の冷媒プレート３１，３１が重ね合わされてなる冷媒チューブ３０の内部には、各冷媒プレート３１の中央部の仕切部３１ａを隔てて冷媒Ａを流す第１冷媒流路３２と第２冷媒流路３３が形成されている。また、各冷媒流路３２，３３には熱交換促進部３４が収容されている。さらに、各冷媒流路３２，３３の両端は、各冷媒プレート３１の上下端部に一体に形成された各一対のタンク形成部２０ａ，２０ａ及び２１ａ，２１ａに連通されている。尚、第１冷媒流路３２が送風の空気流れ方向の風上側に配置され、第２冷媒流路３３が送風の空気流れ方向の風下側に配置されている。   As shown in FIGS. 3 and 4, the refrigerant tube 30 is formed so as to overlap each other in a state where the heat exchange promoting portions 34, 34 are sandwiched between the pair of refrigerant plates 31, 31. The pair of refrigerant plates 31 and 31 are joined to each other at the peripheral joining portions 31b and between the central partitioning portions 31a. Further, a first heat exchange passage recess 31c and a second heat exchange passage recess 31d are formed in parallel between the central partition portion 31a and the peripheral joint portion 31b of each refrigerant plate 31. Thereby, the 1st refrigerant | coolant flow path 32 and 2nd which flow through the refrigerant | coolant A through the partition part 31a of the center part of each refrigerant | coolant plate 31 in the inside of the refrigerant | coolant tube 30 with which a pair of refrigerant | coolant plates 31 and 31 are piled up. A refrigerant flow path 33 is formed. In addition, a heat exchange promoting part 34 is accommodated in each refrigerant flow path 32, 33. Furthermore, both ends of each refrigerant flow path 32, 33 are communicated with a pair of tank forming portions 20 a, 20 a and 21 a, 21 a formed integrally with the upper and lower ends of each refrigerant plate 31. In addition, the 1st refrigerant | coolant flow path 32 is arrange | positioned in the windward side of the air flow direction of ventilation, and the 2nd refrigerant flow path 33 is arrange | positioned in the leeward side of the air flow direction of ventilation.

図１に示すように、一対の冷媒プレート３１，３１の両端側に一体に形成された各一対のタンク形成部２０ａ，２０ａ及び２１ａ，２１ａは、左右方向Ｘの積層方向の外方に向けて円筒状に突出するように形成されている。これら各タンク形成部２０ａ，２１ａが複数積層されることにより、複数の冷媒チューブ３０の上下方向Ｚの両端部側に前後及び上下各一対の冷媒流路用タンク２０，２０及び２１，２１が形成されている。   As shown in FIG. 1, the pair of tank forming portions 20 a, 20 a and 21 a, 21 a formed integrally on both ends of the pair of refrigerant plates 31, 31 are directed outward in the left-right direction X in the stacking direction. It is formed so as to protrude in a cylindrical shape. By stacking a plurality of these tank forming portions 20a and 21a, a pair of front and rear and upper and lower refrigerant flow path tanks 20, 20 and 21, 21 are formed on both ends in the vertical direction Z of the plurality of refrigerant tubes 30. Has been.

また、図１に示すように、右端側の冷媒プレート３５は上端部側にのみ積層方向の外方に向けて円筒状に突出する一対のタンク形成部２０ａ，２０ａが一体に形成されている。この一対のタンク形成部２０ａ，２０ａのうち送風の空気流れ方向の下流側のタンク形成部２０ａが冷媒Ａを導入する冷媒導入口３６になっていると共に、送風の空気流れ方向の上流側のタンク形成部２０ａが冷媒Ａを導出する冷媒導出口３７になっている。さらに、左端側の冷媒プレート３８のは上下端部には、各冷媒チューブ３０の上下端部に一体に形成された各タンク形成部２０ａ，２１ａに連通する少なくとも上下の一方に設けた連通部３９が一体に形成されている。尚、蓄冷材容器４０が介在されていない隣り合う冷媒チューブ３０，３０同士の間には、送風空気との熱交換を促進するアウタフィン２４が挟まれて接合されている。   Further, as shown in FIG. 1, the refrigerant plate 35 on the right end side is integrally formed with a pair of tank forming portions 20a and 20a protruding in a cylindrical shape toward the outside in the stacking direction only on the upper end side. Among the pair of tank forming portions 20a, 20a, the tank forming portion 20a on the downstream side in the air flow direction of the blast is a refrigerant introduction port 36 for introducing the refrigerant A, and the tank on the upstream side in the air flow direction of the blast. The forming portion 20a serves as a refrigerant outlet 37 through which the refrigerant A is derived. Further, at the upper and lower ends of the refrigerant plate 38 on the left end side, at least one communicating portion 39 provided at one of the upper and lower sides communicating with the tank forming portions 20a and 21a formed integrally with the upper and lower ends of each refrigerant tube 30. Are integrally formed. In addition, the outer fin 24 which accelerates | stimulates heat exchange with blowing air is pinched | interposed between adjacent refrigerant | coolant tubes 30 and 30 where the cool storage material container 40 is not interposed.

図５及び図６に示すように、蓄冷材容器４０は、蓄冷材Ｂが充填される収容凹部４６，４７を有する一対の蓄冷プレート（金属板）４１，４１を最中合わせに重ね合わせて形成されていて、例えば、アイドル・ストップ時に、蓄冷材Ｂに蓄えられた冷熱で蓄冷材Ｂと送風空気との間で熱交換を行うことにより、補助的に送風空気を冷却するものである。   As shown in FIGS. 5 and 6, the cool storage material container 40 is formed by overlapping a pair of cool storage plates (metal plates) 41 and 41 having storage recesses 46 and 47 filled with the cool storage material B in the middle. For example, at the time of idle stop, the blown air is supplementarily cooled by exchanging heat between the cold storage material B and the blown air with the cold heat stored in the cold storage material B.

一対の蓄冷プレート４１，４１は、周縁の接合部４１ｂ同士及び中央の仕切部４１ａ同士が接合されている。この一対の蓄冷プレート４１，４１のうちの一方の蓄冷プレート４１の中央の仕切部４１ａには円筒状の突起（係止部）４２が他方の蓄冷プレート４１へ突出するように間隔をおいて複数一体に形成されていると共に、他方の蓄冷プレート４１の中央の仕切部４１ａの各突起４２に対向する位置には円形孔（係合部）４３が形成されている。また、一方の蓄冷プレート４１の周縁の接合部４１ｂの幅方向の両端側には、他方の蓄冷プレート４１へ向けてＬ字状に折り曲げられた折曲部４４が間隔をおいて複数配置されている。そして、図１０に示すように、一方の蓄冷プレート４１の各円筒状の突起４２が他方の蓄冷プレート４１の各円形孔４３に嵌め込まれて加締められ、また、一方の蓄冷プレート４１の各折曲部４４が他方の蓄冷プレート４１の周縁の接合部４１ｂ側に加締められることで、一対の蓄冷プレート４１，４１は位置決めされて接合されるようになっている。尚、一方の蓄冷プレート４１の中央の仕切部４１ａに円筒状の突起４２を一体形成したが、突起４２を円柱状に一体形成しても良い。   As for a pair of cool storage plates 41 and 41, peripheral junction parts 41b and center partitioning parts 41a are joined. The partition part 41a at the center of one of the pair of cold storage plates 41, 41 has a plurality of intervals so that a cylindrical protrusion (locking part) 42 protrudes to the other cold storage plate 41. A circular hole (engagement portion) 43 is formed at a position facing each projection 42 of the central partition portion 41a of the other cold storage plate 41 while being formed integrally. In addition, a plurality of bent portions 44 that are bent in an L shape toward the other cold storage plate 41 are arranged at intervals on both ends in the width direction of the joint portion 41 b at the periphery of the cold storage plate 41. Yes. Then, as shown in FIG. 10, each cylindrical protrusion 42 of one cold storage plate 41 is fitted into each circular hole 43 of the other cold storage plate 41 and crimped, and each folding plate of one cold storage plate 41 is folded. The pair of cool storage plates 41 and 41 are positioned and joined by the curved portion 44 being crimped to the joint 41 b side of the peripheral edge of the other cool storage plate 41. In addition, although the cylindrical protrusion 42 was integrally formed in the partition part 41a of the center of one cool storage plate 41, you may integrally form the protrusion 42 in the column shape.

図５〜図８及び図１１に示すように、一対の蓄冷プレート４１，４１の上下方向Ｚの両端部には、一対の冷媒プレート３１，３１の上下方向Ｚの両端部側の各タンク形成部２０ａ，２１ａの円筒面２０ｂ，２１ｂに当接して位置規制する各一対の折曲部（ストッパ部）４５，４５が外方に向けて突出するようにＬ字状に折り曲げ形成されている。   As shown in FIG. 5 to FIG. 8 and FIG. 11, the tank forming portions on both ends in the vertical direction Z of the pair of refrigerant plates 31, 31 are disposed at both ends in the vertical direction Z of the pair of cold storage plates 41, 41. A pair of bent portions (stopper portions) 45 and 45 that are in contact with the cylindrical surfaces 20b and 21b of 20a and 21a and restrict their positions are bent in an L shape so as to protrude outward.

また、図５及び図６に示すように、各蓄冷プレート４１の中央の仕切部４１ａと周縁の接合部４１ｂとの間には、第１収容凹部４１ｃと第２収容凹部４１ｄが形成されている。これにより、一対の蓄冷プレート４１，４１が重ね合わされてなる蓄冷材容器４０の内部には、各蓄冷プレート４１の中央部の仕切部４１ａを隔てて蓄冷材Ｂを収容する第１収容凹部４６と第２収容凹部４７が並列に形成されている。この第１収容凹部４６が送風の空気流れ方向の風上側に配置され、第２収容凹部４７が送風の空気流れ方向の風下側に配置されている。   Further, as shown in FIGS. 5 and 6, a first accommodation recess 41 c and a second accommodation recess 41 d are formed between the central partition 41 a and the peripheral joint 41 b of each cold storage plate 41. . Thereby, in the cool storage material container 40 by which a pair of cool storage plates 41 and 41 are piled up, the 1st accommodation recessed part 46 which accommodates the cool storage material B through the partition part 41a of the center part of each cool storage plate 41, and The 2nd accommodation recessed part 47 is formed in parallel. The first housing recess 46 is disposed on the leeward side in the air flow direction of the air flow, and the second housing recess 47 is disposed on the leeward side in the air flow direction of the air flow.

さらに、蓄冷材容器４０の第１，第２収容凹部４６，４７の起立壁４６ａ，４７ａには外方へ向けて突出する円弧状の凸部（突起）４６ｂ，４７ｂが互いに間隔をおいて複数一体突出形成されている。この各収容凹部４６，４７の起立壁４６ａ，４７ａの相対向する位置に形成された複数の外方へ向けて突出する円弧状の凸部４６ｂ，４７ｂは、図５に示すように、千鳥配列となるように形成されている。   Further, the standing walls 46a and 47a of the first and second housing recesses 46 and 47 of the cold storage material container 40 have a plurality of arc-shaped protrusions (protrusions) 46b and 47b that protrude outward. Integrally protruding. As shown in FIG. 5, the plurality of outwardly projecting arc-shaped protrusions 46b and 47b formed at the opposing positions of the upstanding walls 46a and 47a of the receiving recesses 46 and 47 are staggered as shown in FIG. It is formed to become.

また、第１収容凹部４６と第２収容凹部４７とは各蓄冷プレート４１の上側において連通部４８とで連通されている。さらに、各蓄冷プレート４１の周縁の接合部４１ｂの送風流れ方向の風上側の連通部４８に対向する位置には、蓄冷材Ｂが充填される蓄冷材注入口４９が形成されている。この蓄冷材注入口４９は栓体５０により閉じられるようになっている。   Further, the first accommodation recess 46 and the second accommodation recess 47 are communicated with the communication portion 48 on the upper side of each cold storage plate 41. Furthermore, a cold storage material inlet 49 filled with the cold storage material B is formed at a position facing the upstream side communication portion 48 in the air flow direction of the joint portion 41 b at the periphery of each cold storage plate 41. The cold storage material injection port 49 is closed by a plug 50.

さらに、図９に示すように、蓄冷材容器４０の蓄冷プレート４１の幅Ｗａは、冷媒チューブ３０の冷媒プレート３１の幅Ｗｂよりも小さく形成されている。また、蓄冷材容器４０の蓄冷プレート４１の各収容凹部４６，４７の幅Ｗｃは、冷媒チューブ３０の各冷媒流路３２，３３の幅Ｗｄよりも小さく形成されている。   Further, as shown in FIG. 9, the width Wa of the cold storage plate 41 of the cold storage material container 40 is formed smaller than the width Wb of the refrigerant plate 31 of the refrigerant tube 30. Further, the width Wc of each of the housing recesses 46 and 47 of the cold storage plate 41 of the cold storage material container 40 is formed to be smaller than the width Wd of each of the refrigerant flow paths 32 and 33 of the refrigerant tube 30.

上記のように構成される蓄冷機能付きエバポレータ１０は、全部品がアルミニウムまたはアルミニウム合金製であり、各部品を積層させて加圧により各部品同士を押圧し、各部品同士を面接触させた状態でろう付けにより一体化される。また、冷媒Ａとしては例えばＨＦＣ−１３４ａ等が用いられ、蓄冷材Ｂとしては例えばパラフィン等が用いられる。   In the evaporator 10 with the cold storage function configured as described above, all the parts are made of aluminum or aluminum alloy, the parts are stacked, the parts are pressed by pressure, and the parts are brought into surface contact with each other. It is integrated by brazing. Further, as the refrigerant A, for example, HFC-134a or the like is used, and as the cold storage material B, for example, paraffin or the like is used.

以上実施形態の蓄冷機能付きエバポレータ１０によれば、図９に示すように、冷媒チューブ３０の側面３０ａの上に蓄冷材容器４０の側面４０ａを積み重ね、この蓄冷材容器４０の側面４０ａの上に冷媒チューブ３０の側面３０ａを積み重ねて、冷媒チューブ３０と蓄冷材容器４０を複数積層させた状態で、加圧により冷媒チューブ３０と蓄冷材容器４０同士を押圧し、冷媒チューブ３０の側面３０ａと蓄冷材容器４０の側面４０ａを面接触させて、ろう付けにより一体化される。   According to the evaporator 10 with the cold storage function of the above embodiment, as shown in FIG. 9, the side surface 40 a of the cold storage material container 40 is stacked on the side surface 30 a of the refrigerant tube 30, and on the side surface 40 a of the cold storage material container 40. In a state where the side surfaces 30a of the refrigerant tubes 30 are stacked and a plurality of the refrigerant tubes 30 and the cold storage material containers 40 are stacked, the refrigerant tubes 30 and the cold storage material containers 40 are pressed together by pressurization, and the side surfaces 30a of the refrigerant tubes 30 and the cold storage materials are stored. The side surface 40a of the material container 40 is brought into surface contact and integrated by brazing.

この蓄冷機能付きエバポレータ１０に用いられる冷媒チューブ３０を、上下方向の両端部側に円筒状に形成された各一対のタンク形成部２０ａ，２０ａ及び２１ａ，２１ａと、この各一対のタンク形成部２０ａ，２０ａ及び２１ａ，２１ａを一体に形成し、重ね合わせて形成することで内部に各一対のタンク形成部２０ａ，２０ａ及び２１ａ，２１ａに連通する各冷媒流路３２，３３を形成する一対の冷媒プレート３１，３１と、この一対の冷媒プレート３１，３１の各冷媒流路３２，３３内に収容され、熱交換を促進させる熱交換促進部３４とで構成したことにより、一対の冷媒プレート３１，３１の上下方向の両端部側に各一対のタンク形成部２０ａ，２０ａ及び２１ａ，２１ａを一体に形成した分、部品点数を削減して低コストで製造することができると共に、各冷媒流路３２，３３を構成する一対の冷媒プレート３１，３１の内面に熱交換促進部３４を確実に接触させることができ、熱交換をより一段と促進させることができる。   The refrigerant tube 30 used in the evaporator 10 with the cold storage function is divided into a pair of tank forming portions 20a, 20a and 21a, 21a formed in a cylindrical shape on both ends in the vertical direction, and each pair of tank forming portions 20a. , 20a and 21a, 21a are integrally formed and overlapped to form a pair of refrigerant channels 32, 33 communicating with the pair of tank forming portions 20a, 20a and 21a, 21a inside. By comprising the plates 31, 31 and the heat exchange promoting part 34 accommodated in the refrigerant flow paths 32, 33 of the pair of refrigerant plates 31, 31, and promoting heat exchange, the pair of refrigerant plates 31, Since the pair of tank forming portions 20a, 20a and 21a, 21a are integrally formed on both end portions in the vertical direction of 31, the number of parts is reduced and the manufacturing is performed at low cost. In addition, the heat exchange promoting part 34 can be reliably brought into contact with the inner surfaces of the pair of refrigerant plates 31 and 31 constituting the refrigerant flow paths 32 and 33, and the heat exchange can be further promoted. .

また、図１１に示すように、蓄冷材容器４０の一対の蓄冷プレート４１，４１の上下方向の両端部に冷媒チューブ３０の一対の冷媒プレート３１，３１の上下方向の両側の各タンク形成部２０ａ，２１ａの円筒面２０ｂ，２１ｂに当接して位置規制する折曲部４５，４５をそれぞれ形成したことにより、冷媒チューブ３０の隣接する各タンク形成部２０ａ，２１ａ同士の重ね合わせ部の間に蓄冷材容器４０の一対の蓄冷プレート４１，４１の両端部が噛み込むのを確実に防止することができる。これにより、蓄冷時に発生する凝縮水等の水が冷媒チューブ３０の各タンク形成部２０ａ，２１ａと蓄冷材容器４０の折曲部４５，４５との隙間を通り排水され、凝縮水の滞留を抑制できる。   Moreover, as shown in FIG. 11, each tank formation part 20a of the both sides of the up-down direction of a pair of refrigerant | coolant plates 31 and 31 of the refrigerant | coolant tube 30 at the up-and-down direction both ends of a pair of cool storage plates 41 and 41 of the cool storage material container 40. , 21a is formed between the overlapping portions of the tank forming portions 20a, 21a adjacent to each other in the refrigerant tube 30 by forming the bent portions 45, 45 that are in contact with the cylindrical surfaces 20b, 21b and restrict their positions. It can prevent reliably that the both ends of a pair of cold storage plates 41 and 41 of the material container 40 bite. Thereby, water such as condensed water generated at the time of cold storage is drained through the gaps between the tank forming portions 20a and 21a of the refrigerant tube 30 and the bent portions 45 and 45 of the cold storage material container 40, thereby suppressing condensate water retention. it can.

さらに、一対の蓄冷プレート４１，４１の上下方向の両端部を折り曲げた折曲部４５，４５をストッパ部としたことで、蓄冷プレート４１の両端部を折り曲げるだけの簡単な構造により、冷媒チューブ３０の各タンク形成部２０ａ，２１ａに当接して位置規制するストッパ部を簡単に形成することができる。   Furthermore, by using bent portions 45, 45 that are bent at both ends in the vertical direction of the pair of cold storage plates 41, 41 as stopper portions, the refrigerant tube 30 has a simple structure in which both ends of the cold storage plate 41 are simply bent. It is possible to easily form a stopper portion that abuts on each of the tank forming portions 20a and 21a and regulates the position.

尚、前記実施形態によれば、一対の蓄冷プレートの上下方向の両端部に一対の冷媒プレートの上下方向の両側の各タンク形成部に当接するストッパ部として外方へＬ字状に突出する折曲部をそれぞれ形成したが、一対の蓄冷プレートのうちの一方の蓄冷プレートにのみ折曲部を形成しても良く、また、その形状はＬ字形に限られるものではない。   In addition, according to the said embodiment, it folds outward in L shape as a stopper part which contact | abuts each tank formation part of the both sides of the up-down direction of a pair of refrigerant | coolant plate at the up-down direction both ends of a pair of cool storage plate. Although the bent portions are formed, the bent portion may be formed only on one of the pair of cool storage plates, and the shape is not limited to the L shape.

１０ 蓄冷機能付きエバポレータ
２０ａ，２１ａ タンク形成部
３０ 冷媒チューブ
３１，３１ 一対の冷媒プレート
３２，３３ 冷媒流路
３４ 熱交換促進部
４０ 蓄冷材容器
４１，４１ 一対の蓄冷プレート
４５ 折曲部（ストッパ部）
４６ 第１収容凹部（収容凹部）
４７ 第２収容凹部（収容凹部）
Ａ 冷媒
Ｂ 蓄冷材 DESCRIPTION OF SYMBOLS 10 Evaporator 20a, 21a Tank formation part 30 Refrigerant tube 31,31 A pair of refrigerant | coolant plate 32,33 Refrigerant flow path 34 Heat exchange promotion part 40 Cold storage material container 41,41 A pair of cold storage plate 45 Bending part (stopper part) )
46 1st accommodation recessed part (accommodation recessed part)
47 Second receiving recess (receiving recess)
A Refrigerant B Cold storage material

Claims (2)

冷媒流路（３２，３３）を有し、互いに間隔をおいて並列状に配置された複数の冷媒チューブ（３０）と、前記複数の冷媒チューブ（３０）のうち隣り合う冷媒チューブ（３０，３０）同士の間に挟まれて接合され、蓄冷材（Ｂ）が充填される蓄冷材容器（４０）と、を備えた蓄冷機能付きエバポレータ（１０）であって、
前記冷媒チューブ（３０）を、上下方向の両側に筒状に形成された一対のタンク形成部（２０ａ，２１ａ）と、この一対のタンク形成部（２０ａ，２１ａ）を一体に形成し、重ね合わせて形成することで内部に該一対のタンク形成部（２０ａ，２１ａ）に連通する前記冷媒流路（３２，３３）を形成する一対の冷媒プレート（３１，３１）と、この一対の冷媒プレート（３１，３１）の冷媒流路（３２，３３）内に収容され、熱交換を促進させる熱交換促進部（３４）とで構成し、
前記蓄冷材容器（４０）を、前記蓄冷材（Ｂ）が充填される収容凹部（４６，４７）を有する一対の蓄冷プレート（４１，４１）を重ね合わせて形成し、
前記一対の蓄冷プレート（４１，４１）のうちの少なくとも一方の蓄冷プレート（４１）の上下方向の両端部に前記一対の冷媒プレート（３１，３１）の上下方向の両側の各タンク形成部（２０ａ，２１ａ）に当接するストッパ部（４５）を形成したことを特徴とする蓄冷機能付きエバポレータ。 A plurality of refrigerant tubes (30) having refrigerant flow paths (32, 33) and arranged in parallel at intervals, and adjacent refrigerant tubes (30, 30) among the plurality of refrigerant tubes (30). ) An evaporator (10) with a cold storage function provided with a cold storage material container (40) sandwiched between and joined together and filled with the cold storage material (B),
The refrigerant tube (30) is formed by integrally forming a pair of tank forming portions (20a, 21a) formed in a cylindrical shape on both sides in the vertical direction and the pair of tank forming portions (20a, 21a). A pair of refrigerant plates (31, 31) forming the refrigerant flow passages (32, 33) communicating with the pair of tank forming portions (20a, 21a) inside, and the pair of refrigerant plates ( 31 and 31) are accommodated in the refrigerant flow path (32, 33), and are configured with a heat exchange promoting part (34) that promotes heat exchange,
The cold storage material container (40) is formed by overlapping a pair of cold storage plates (41, 41) having an accommodation recess (46, 47) filled with the cold storage material (B),
Each tank formation part (20a) of the up-down direction both sides of a pair of said refrigerant | coolant plate (31, 31) in the up-down direction both ends of at least one cool storage plate (41) of a pair of said cool storage plates (41, 41). , 21a), an evaporator with a cold storage function, wherein a stopper portion (45) is formed. 請求項１記載の蓄冷機能付きエバポレータ（１０）であって、
前記蓄冷プレート（４１）の上下方向の両端部を折り曲げた折曲部（４５）を前記ストッパ部としたことを特徴とする蓄冷機能付きエバポレータ。 An evaporator (10) with a cold storage function according to claim 1,
The evaporator with a cool storage function characterized in that a bent portion (45) formed by bending both ends in the vertical direction of the cool storage plate (41) is used as the stopper portion.
JP2016048410A 2016-03-11 2016-03-11 Evaporator with cold storage function Pending JP2017159856A (en)

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