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JP2008117035A - Vending machine - Google Patents

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Publication number
JP2008117035A
JP2008117035A JP2006297403A JP2006297403A JP2008117035A JP 2008117035 A JP2008117035 A JP 2008117035A JP 2006297403 A JP2006297403 A JP 2006297403A JP 2006297403 A JP2006297403 A JP 2006297403A JP 2008117035 A JP2008117035 A JP 2008117035A
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Japan
Prior art keywords
fluid
cooling
heat exchanger
flows
vending machine
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JP2006297403A
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Japanese (ja)
Inventor
Masaharu Kamei
正治 亀井
Toshikazu Sakai
寿和 境
Koichi Nishimura
晃一 西村
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2006297403A priority Critical patent/JP2008117035A/en
Publication of JP2008117035A publication Critical patent/JP2008117035A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2260/00Heat exchangers or heat exchange elements having special size, e.g. microstructures
    • F28F2260/02Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems of requiring expansion of a heat transfer area of a fin to further improve heat exchange efficiency in the conventional heat exchange between condensed fluid and evaporated fluid performed via the fin, having a limitation thereto with an increased size of a heat exchanger. <P>SOLUTION: With the provision of a microchannel heat exchanger 40 thermally coupling an outdoor heat exchanger in a cooling/warming system with a condenser of a dedicated cooling system, by grouping a microchanel 41 internally formed in a plate 42 of the microchannel heat exchanger 40 into a path in which the condensed fluid of the dedicated cooling system flows and a path in which the evaporated fluid flows when heat is applied by the cooling/warming system, the heat exchange is performed using a plate having a large heat transfer area. Thus, the heat exchange between the condensed fluid and the evaporated fluid flowing in the microchannel 41 is performed using the plate 42 having a larger heat transfer area instead of using the fin, so that the heat exchange capability can be improved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、缶飲料などの商品を加温または冷却して販売する自動販売機において、圧縮機で圧縮された冷媒が凝縮する際に生じる潜熱を利用して冷却および加温を行う冷却加温システムとマイクロチャネル熱交換器を用いた自動販売機に関するものである。   The present invention relates to a cooling and heating system that uses a latent heat generated when a refrigerant compressed by a compressor condenses in a vending machine that sells products such as canned beverages that are heated or cooled. The present invention relates to a vending machine using a system and a microchannel heat exchanger.

近年、自動販売機に対する消費電力量削減の要求が高まってきており、消費電力量削減手段として、冷却によって生じる廃熱を利用したものが提案されている(例えば、特許文献1参照)。   In recent years, demands for reducing power consumption for vending machines have increased, and as a means for reducing power consumption, one utilizing waste heat generated by cooling has been proposed (for example, see Patent Document 1).

図7は、特許文献1に記載された従来の自動販売機の冷媒回路図である。図8は、従来の室外熱交換器の斜視図である。図7、図8に示すように、ホット/コールド切替室1、コールド専用室2、第ニのコールド専用室3からなる貯蔵室を備え、圧縮機4、ホット/コールド切替室1内に設置された室内熱交換器5、貯蔵室の外に設置された室外熱交換器6、冷却時と加温時に冷媒流路を切替える四方切替弁7、膨張機構としての冷却用キャピラリチューブ8、加温用キャピラリチューブ9、ドライヤ10からなり、ホット/コールド切替室1の冷却と加温を専用に行う冷却加温システム11を有するとともに、圧縮機12、コールド専用室2内に設置された蒸発器13、第二のコールド専用室3内に設置された第二の蒸発器14、膨張弁15、第二の膨張弁16、室外熱交換器6からなり、コールド専用室2と第二のコールド専用室3を専用に冷却する冷却システム17を有する。   FIG. 7 is a refrigerant circuit diagram of a conventional vending machine described in Patent Document 1. FIG. 8 is a perspective view of a conventional outdoor heat exchanger. As shown in FIG. 7 and FIG. 8, a storage room comprising a hot / cold switching chamber 1, a cold dedicated chamber 2, and a second cold dedicated chamber 3 is provided, and is installed in the compressor 4 and the hot / cold switching chamber 1. Indoor heat exchanger 5, outdoor heat exchanger 6 installed outside the storage chamber, four-way switching valve 7 for switching the refrigerant flow path during cooling and heating, cooling capillary tube 8 as an expansion mechanism, for heating The apparatus includes a capillary tube 9 and a dryer 10, and has a cooling / heating system 11 dedicated to cooling and heating the hot / cold switching chamber 1, and an evaporator 13 installed in the compressor 12, the cold dedicated chamber 2, It consists of a second evaporator 14, an expansion valve 15, a second expansion valve 16, and an outdoor heat exchanger 6 installed in the second cold dedicated chamber 3, and includes the cold dedicated chamber 2 and the second cold dedicated chamber 3. Cooling system With a Temu 17.

ここで、室外熱交換器6は、2パスのフィンチューブ熱交換器で構成され、一方のパスは冷却加温システム11と連結し、加温時は蒸発器として、冷却時は凝縮器として作用し、他方のパスは冷却システム17と連結し、凝縮器として作用する。また、冷却加温システム11と連結する冷媒配管は冷却システム17の冷媒配管の風下に配置されるとともに、冷却システム17の冷媒は、点線矢印で示すように3列の中央下段に配置された入口配管18より流入し、上段に向かって流れた後、風上側の列を上段から下段に向かって流れ、風上側下段に配置された出口配管19より流出する。   Here, the outdoor heat exchanger 6 is composed of a two-pass fin tube heat exchanger, and one of the passes is connected to the cooling and heating system 11 and functions as an evaporator during heating and as a condenser during cooling. The other path is connected to the cooling system 17 and acts as a condenser. In addition, the refrigerant pipe connected to the cooling and heating system 11 is arranged leeward of the refrigerant pipe of the cooling system 17, and the refrigerant of the cooling system 17 is an inlet arranged at the center lower stage of three rows as indicated by dotted arrows. After flowing in from the pipe 18 and flowing toward the upper stage, it flows in the windward row from the upper stage toward the lower stage, and flows out from the outlet pipe 19 disposed in the lower stage on the windward side.

一方、冷却加温システム11の加温時の冷媒は、実線矢印で示すように風下側上段に配置された入口配管20より流入し、下段に向かって流れ、風下側下段に配置された出口配管21より流出する。また、冷却時においては冷媒の流れは逆向きになる。さらに、冷却加温システムの出口配管21と冷却システムの入口配管18が近接して配置されている。   On the other hand, the refrigerant at the time of heating in the cooling and heating system 11 flows in from the inlet pipe 20 arranged at the upper leeward side as shown by the solid line arrow, flows toward the lower stage, and is the outlet pipe arranged at the lower leeward side. 21 flows out. Further, the refrigerant flows in the opposite direction during cooling. Furthermore, the outlet piping 21 of the cooling and heating system and the inlet piping 18 of the cooling system are arranged close to each other.

また、室内熱交換器5と室外熱交換器6は2本の並列する配管で結ばれており、一方は冷却用キャピラリチューブ8と冷却用逆止弁22、ドライヤ23が直列に接続され、他方は加温用キャピラリチューブ9と加温用逆止弁24が直列に接続されている。   The indoor heat exchanger 5 and the outdoor heat exchanger 6 are connected by two parallel pipes, one of which is a cooling capillary tube 8, a cooling check valve 22, and a dryer 23 connected in series, and the other The heating capillary tube 9 and the heating check valve 24 are connected in series.

ここで、冷却用逆止弁22はドライヤ23から冷却用キャピラリチューブ8に冷媒が流れる方向を正方向とし、冷却用キャピラリチューブ8からドライヤ23へ向かう逆方向には流れないように設置される。また、加温用逆止弁24は加温用キャピラリチューブ9から室外熱交換器6へ冷媒が流れる方向を正方向とし、室外熱交換器6から加温用キャピラリチューブ9へ向かう逆方向には流れないように設置される。   Here, the cooling check valve 22 is installed so that the direction in which the refrigerant flows from the dryer 23 to the cooling capillary tube 8 is the forward direction and does not flow in the reverse direction from the cooling capillary tube 8 toward the dryer 23. The warming check valve 24 has a positive direction in which the refrigerant flows from the heating capillary tube 9 to the outdoor heat exchanger 6 and a reverse direction from the outdoor heat exchanger 6 to the heating capillary tube 9. Installed so as not to flow.

また、圧縮機4は、図示しない断熱カバー内に設置され、図示しないコンプファンを備えるとともに、室内熱交換器5、蒸発器13、第二の蒸発器14、室外熱交換器6にはそれぞれ独立の送風ファン25、26、27、28が備えられている。   The compressor 4 is installed in a heat insulating cover (not shown) and includes a compressor fan (not shown). The compressor 4 is independent of the indoor heat exchanger 5, the evaporator 13, the second evaporator 14, and the outdoor heat exchanger 6. Air blowing fans 25, 26, 27, and 28 are provided.

さらに、ホット/コールド切替室1内にはヒータ29が備えられている。   Further, a heater 29 is provided in the hot / cold switching chamber 1.

以上のように構成された自動販売機について、以下その動作を説明する。   The operation of the vending machine configured as described above will be described below.

まず、ホット/コールド切替室1を冷却する場合、図7において点線矢印で示したように、圧縮機4から吐出された冷媒は四方切替弁7で流路を切替えて室外熱交換器6へ供給されて凝縮液化する。室外熱交換器6から出た液冷媒はドライヤ23に供給される。この液冷媒の温度は室外熱交換器とほぼ同じ30〜40℃となる。このとき、ドライヤ23内部に液冷媒が滞留するとともに、液冷媒中の水分が除去される。   First, when the hot / cold switching chamber 1 is cooled, the refrigerant discharged from the compressor 4 is switched to the flow path by the four-way switching valve 7 and supplied to the outdoor heat exchanger 6 as shown by the dotted arrows in FIG. It is condensed and liquefied. The liquid refrigerant discharged from the outdoor heat exchanger 6 is supplied to the dryer 23. The temperature of this liquid refrigerant becomes 30-40 degreeC substantially the same as an outdoor heat exchanger. At this time, the liquid refrigerant stays in the dryer 23 and the water in the liquid refrigerant is removed.

そして、ドライヤ23から出た液冷媒は冷却用逆止弁22を経て冷却用キャピラリチューブ8で減圧されて室内熱交換器5へ供給されて蒸発気化し、ガス冷媒は再び四方切替弁7を経て圧縮機4へ還流する。室内熱交換器5の蒸発温度は収納室の設定温度により大きく変化する。一般に缶飲料などを冷却する場合は設定温度が5〜10℃であり、室内熱交換器5の蒸発温度は−15〜−5℃となる。   Then, the liquid refrigerant discharged from the dryer 23 is reduced in pressure by the cooling capillary tube 8 through the cooling check valve 22 and supplied to the indoor heat exchanger 5 to be evaporated, and the gas refrigerant passes through the four-way switching valve 7 again. Reflux to the compressor 4. The evaporation temperature of the indoor heat exchanger 5 varies greatly depending on the set temperature of the storage chamber. Generally, when canned beverages or the like are cooled, the set temperature is 5 to 10 ° C, and the evaporation temperature of the indoor heat exchanger 5 is -15 to -5 ° C.

また、ホット/コールド切替室1を加温する場合、図7において実線矢印で示したように、圧縮機4から吐出された冷媒は四方切替弁7で流路を切替えて室内熱交換器5に供給されて凝縮液化する。この液冷媒の温度は収納室の設定温度により大きく変化する。一般に缶飲料などを加温する場合は設定温度が50〜60℃であり、室内熱交換器5の凝縮温度は60〜80℃となる。   When the hot / cold switching chamber 1 is heated, the refrigerant discharged from the compressor 4 is switched to the indoor heat exchanger 5 by switching the flow path with the four-way switching valve 7 as shown by the solid line arrow in FIG. Supplied to condense. The temperature of the liquid refrigerant varies greatly depending on the set temperature of the storage chamber. In general, when a can beverage or the like is heated, the set temperature is 50 to 60 ° C, and the condensation temperature of the indoor heat exchanger 5 is 60 to 80 ° C.

そして、室内熱交換器5から出た液冷媒は直ぐに加温用キャピラリチューブ9で減圧された後、加温用逆止弁24を経て室外熱交換器6へ供給されて蒸発気化し、ガス冷媒は再び四方切替弁7を経て圧縮機4へ還流する。   The liquid refrigerant coming out of the indoor heat exchanger 5 is immediately depressurized by the heating capillary tube 9 and then supplied to the outdoor heat exchanger 6 via the heating check valve 24 to evaporate and gas refrigerant. Returns to the compressor 4 through the four-way switching valve 7 again.

このように、室外熱交換器6は、冷却システム17が稼動すると、冷却システム17と連結しているパスは凝縮器として作用し、パス周辺のフィン温度は高温になる。そのため、冷却加温システム11と冷却システム17が同時に稼動した場合には、フィンを介してカスケード熱交換することができるとともに、凝縮器により暖められた大気を蒸発器に吸込ませることができ、0〜10℃の高温の蒸発温度で冷却加温システム11を稼動することが可能となる。これにより、凝縮温度60〜80℃の厳しい加温条件においても圧縮比を低減でき、圧縮機4の効率向上が図れる。また、冷却システム17においても凝縮温度が下がることにより、圧縮機12の効率向上が図れる。
特開2006−48635号公報
Thus, in the outdoor heat exchanger 6, when the cooling system 17 operates, the path connected to the cooling system 17 acts as a condenser, and the fin temperature around the path becomes high. Therefore, when the cooling and heating system 11 and the cooling system 17 are operated simultaneously, cascade heat exchange can be performed through the fins, and the atmosphere warmed by the condenser can be sucked into the evaporator. It becomes possible to operate the cooling and heating system 11 at a high evaporation temperature of −10 ° C. Thereby, the compression ratio can be reduced even under severe heating conditions of a condensation temperature of 60 to 80 ° C., and the efficiency of the compressor 4 can be improved. Further, the efficiency of the compressor 12 can be improved by reducing the condensation temperature in the cooling system 17 as well.
JP 2006-48635 A

しかしながら、上記従来の構成では、凝縮流体と蒸発流体の熱交換をフィンを介して行っているが、さらなる熱交換効率の向上を図るには、フィンの伝熱面積を大きくする必要があるが、それにも限界があり、熱交換器が大型化するという課題を有していた。   However, in the above conventional configuration, heat exchange between the condensed fluid and the evaporating fluid is performed via the fins, but in order to further improve the heat exchange efficiency, it is necessary to increase the heat transfer area of the fins. There is a limit to this, and there is a problem that the heat exchanger becomes larger.

本発明は、上記従来の課題を解決するもので、凝縮流体と蒸発流体の熱交換効率を向上させることができるマイクロチャネル熱交換器を用いた自動販売機を提供することを目的とする。   The present invention solves the above-described conventional problems, and an object thereof is to provide a vending machine using a microchannel heat exchanger that can improve the heat exchange efficiency between the condensed fluid and the evaporated fluid.

上記従来の課題を解決するために、本発明の自動販売機は、冷却加温システムの室外熱交換器と冷却システムの凝縮器とを熱的に結合したマイクロチャネル熱交換器を有し、前記マイクロチャネル熱交換器のプレートの内部に形成されたマイクロチャネルを前記冷却システムの凝縮流体が流れる通路と、前記冷却加温システムの加温時に蒸発流体が流れる通路とを独立して構成することで、前記通路間の熱交換を伝熱面積の大きなプレートで行うことを特徴とするものである。   In order to solve the above-described conventional problems, the vending machine of the present invention includes a microchannel heat exchanger in which an outdoor heat exchanger of a cooling and heating system and a condenser of the cooling system are thermally coupled, The microchannel formed inside the plate of the microchannel heat exchanger is configured by independently forming a passage through which the condensed fluid of the cooling system flows and a passage through which the evaporated fluid flows when the cooling and heating system is heated. The heat exchange between the passages is performed by a plate having a large heat transfer area.

これによって、マイクロチャネル内を流れる凝縮流体と蒸発流体の熱交換をフィンではなく、伝熱面積の大きなプレートで行うため、熱交換能力を向上させることができる。   As a result, heat exchange between the condensed fluid and the evaporating fluid flowing in the microchannel is performed by using a plate having a large heat transfer area instead of fins, so that the heat exchange capability can be improved.

本発明の自動販売機は、マイクロチャネル内を流れる凝縮流体と蒸発流体の熱交換を伝熱面積の大きなプレートで行うため、熱交換能力を向上させることができ、自動販売機の消費電力量をさらに削減することが可能になる。   The vending machine of the present invention performs heat exchange between the condensed fluid and the evaporating fluid flowing in the microchannel with a plate having a large heat transfer area, so that the heat exchange capacity can be improved and the power consumption of the vending machine can be reduced. Further reduction is possible.

請求項1に記載の発明は、冷却貯蔵室と冷却加温切替室を有し、前記冷却貯蔵室を冷却する冷却システムと前記冷却加温切替室を冷却または加温する冷却加温システムとを独立して備えた自動販売機であり、前記冷却システムに接続された凝縮器と前記冷却加温システムに接続された室外熱交換器とを熱的に連結したマイクロチャネル熱交換器に構成し、前記マイクロチャネル熱交換器を形成するプレートの内部に前記冷却システムの凝縮流体が流れる通路と、前記冷却加温システムの加温時に蒸発流体が流れる通路とを備えたものである。   The invention according to claim 1 has a cooling storage chamber and a cooling / heating switching chamber, and includes a cooling system for cooling the cooling storage chamber and a cooling / heating system for cooling or heating the cooling / heating switching chamber. An independent vending machine, comprising a microchannel heat exchanger in which a condenser connected to the cooling system and an outdoor heat exchanger connected to the cooling and heating system are thermally connected; A passage through which the condensed fluid of the cooling system flows inside a plate forming the microchannel heat exchanger, and a passage through which the evaporated fluid flows when the cooling and heating system is heated are provided.

これによって、マイクロチャネル内を流れる凝縮流体と蒸発流体の熱交換をフィンではなく、伝熱面積の大きなプレートで行うため、熱交換能力を向上させることができ、自動販売機の消費電力量をさらに削減することができる。   As a result, the heat exchange between the condensed fluid and the evaporating fluid flowing in the microchannel is performed not with fins but with a plate having a large heat transfer area, so that the heat exchange capacity can be improved and the power consumption of the vending machine can be further increased. Can be reduced.

請求項2に記載の発明は、請求項1に記載の発明にさらに、プレートの内部に複数の流体通路を形成し、一方側に冷却システムの凝縮流体が流れる複数の通路を、他方側に冷却加温システムの加温時に蒸発流体が流れる複数の通路を、それぞれ集約配置したものである。   According to the second aspect of the present invention, in addition to the first aspect of the present invention, a plurality of fluid passages are formed inside the plate, a plurality of passages through which the condensed fluid of the cooling system flows on one side, and the other side is cooled A plurality of passages through which the evaporating fluid flows during heating of the heating system are collectively arranged.

これによって、通路の外表面全体がプレートで形成されているので、伝熱面積が大きくプレート外表面での熱交換能力を向上させることができる。   As a result, since the entire outer surface of the passage is formed of a plate, the heat transfer area is large, and the heat exchange capability on the outer surface of the plate can be improved.

請求項3に記載の発明は、請求項1に記載の発明にさらに、プレートの内部に複数の流体通路を形成し、隣り合う通路内を流れる流体が互いに異なるシステムの流体となるように、冷却システムの凝縮流体が流れる通路と冷却加温システムの加温時に蒸発流体が流れる通路とを構成したものである。   The invention described in claim 3 is the same as that of the invention described in claim 1, wherein a plurality of fluid passages are formed in the plate, and cooling is performed so that fluids flowing in adjacent passages are fluids of different systems. A passage through which the condensed fluid of the system flows and a passage through which the evaporated fluid flows when the cooling and heating system is heated are configured.

これによって、プレート内部での複数の流体の熱交換を促進させることができ、熱交換能力が向上し、自動販売機の消費電力量をさらに削減することができる。   Thereby, heat exchange of a plurality of fluids inside the plate can be promoted, heat exchange capability is improved, and power consumption of the vending machine can be further reduced.

請求項4に記載の発明は、請求項1から3のいずれか一項に記載の発明に、複数のプレートをフィンを介して積層し、前記フィンを介して対面する前記プレート内を流れる流体は、異なるシステムの流体となるように、冷却システムの凝縮流体が流れる通路と冷却加温システムの加温時に蒸発流体が流れる通路とを構成したものである。   According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a plurality of plates are stacked via fins, and the fluid flowing in the plates facing each other via the fins is The passage through which the condensed fluid of the cooling system flows and the passage through which the evaporating fluid flows during heating of the cooling and heating system are configured so as to be fluids of different systems.

これによって、プレートを介しての熱交換に加え、フィンを介しての熱交換も行われるため、熱交換能力がより一層向上し、自動販売機の消費電力量を大幅に削減することができる。   Thereby, in addition to heat exchange through the plate, heat exchange through the fins is also performed, so that the heat exchange capability is further improved and the power consumption of the vending machine can be greatly reduced.

請求項5に記載の発明は、請求項1から4のいずれか一項に記載の発明に、冷却システムの凝縮流体と冷却加温システムの加温時の蒸発流体は、互いに逆方向に流れるように構成したものである。   According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the condensing fluid of the cooling system and the evaporating fluid during heating of the cooling and heating system flow in opposite directions. It is configured.

これによって、複数の流体間の熱交換が促進され、自動販売機の消費電力量を削減することができる。   Thereby, heat exchange between a plurality of fluids is promoted, and the power consumption of the vending machine can be reduced.

以下、本発明の実施の形態について、図面を参照しながら説明するが、従来例または先に説明した実施の形態と同一構成については同一符号を付して、その詳細な説明は省略する。なお、この実施の形態によってこの発明が限定されるものではない。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(実施の形態1)
図1は、本発明の実施の形態1における自動販売機のマイクロチャネル熱交換器の斜視図である。図2は同実施の形態におけるマイクロチャネル熱交換器の断面図である。
(Embodiment 1)
FIG. 1 is a perspective view of a microchannel heat exchanger of a vending machine according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the microchannel heat exchanger in the same embodiment.

図1および図2において、マイクロチャネル熱交換器40は、内部に複数の微小径(約1〜2mm程度)の冷媒通路(いわゆるマイクロチャネル41)が形成されたプレート42を、フィン43を介し積層して構成されている。また、プレート42の内部に形成された複数のマイクロチャネル41は、流体Aが流れる通路と流体Bが流れる通路とに区分けされている。そして、マイクロチャネル熱交換器40のプレート42の両端には、流体Aが流れるヘッダA44と、流体Bが流れるヘッダB45とが設けられている。   1 and 2, a microchannel heat exchanger 40 includes a plate 42 in which a plurality of minute diameter (about 1 to 2 mm) refrigerant passages (so-called microchannels 41) are formed inside via fins 43. Configured. The plurality of microchannels 41 formed inside the plate 42 are divided into a passage through which the fluid A flows and a passage through which the fluid B flows. At both ends of the plate 42 of the microchannel heat exchanger 40, a header A44 through which the fluid A flows and a header B45 through which the fluid B flows are provided.

つまり、流体Aが流れる通路と流体Bが流れる通路とは直線方向に並んだ複数通路を形成したプレート42に構成され、プレート42の通路方向の両側にはヘッダA44とヘッダB45があり、流体A,Bの入口、出口通路はプレート42内の通路に対して略直角方向に構成されている。   That is, the passage through which the fluid A flows and the passage through which the fluid B flow are configured in the plate 42 that forms a plurality of passages arranged in a straight line. The header A44 and the header B45 are provided on both sides of the plate 42 in the passage direction. , B inlet and outlet passages are formed in a direction substantially perpendicular to the passages in the plate 42.

また図2のように、図上で、流体Aは上部に位置するヘッダA44から下方に位置するヘッダA44に向かって流れるのに対し、流体Bは下部に位置するヘッダB45から上方に位置するヘッダB45に向かって流れる構成になっている。   Also, as shown in FIG. 2, in the figure, fluid A flows from header A44 located at the top to header A44 located below, whereas fluid B is located above header B45 located at the bottom. It is configured to flow toward B45.

以上のように構成された自動販売機のマイクロチャネル熱交換器について、以下その動作、作用を説明する。   The operation and action of the microchannel heat exchanger of the vending machine configured as described above will be described below.

自動販売機の冷却専用システムの凝縮流体は、マイクロチャネル熱交換器40の一方のヘッダA44に流入し、区分けされたマイクロチャネル41の流体Aが流れる通路に導かれ、プレート42を介して流体Bと熱交換を行った後、他方のヘッダA44から冷却専用システムに還流する。   The condensed fluid of the vending machine cooling-only system flows into one header A44 of the microchannel heat exchanger 40, is led to a passage through which the fluid A of the divided microchannel 41 flows, and the fluid B is passed through the plate 42. After the heat exchange, the other header A44 is returned to the cooling dedicated system.

そして、冷却加温システムの加温時の蒸発流体は、マイクロチャネル熱交換器40の一方のヘッダB45に流入し、区分けされたマイクロチャネル41の流体Bが流れる通路に導かれ、プレート42を介して流体Aと熱交換を行った後、他方のヘッダB45から冷却加温システムに還流する。   Then, the evaporating fluid at the time of heating in the cooling and heating system flows into one header B45 of the microchannel heat exchanger 40, is led to a passage through which the fluid B of the divided microchannel 41 flows, and passes through the plate 42. After the heat exchange with the fluid A, the other header B45 is returned to the cooling and heating system.

ここで、流体Aおよび流体Bの流れるマイクロチャネル41の外表面全体がプレート42内部に形成されたものであり、フィンと比べて伝熱面積が大きくなるプレート42で熱交換を行うため、流体Aと流体Bの熱交換能力が向上する。   Here, the entire outer surface of the microchannel 41 through which the fluid A and the fluid B flow is formed inside the plate 42, and heat exchange is performed with the plate 42 having a larger heat transfer area than the fins. And the heat exchange capacity of fluid B is improved.

以上のように、本実施の形態においては、冷却加温システムの室外熱交換器と冷却専用システムの凝縮器とを熱的に結合したマイクロチャネル熱交換器40を有し、マイクロチャネル熱交換器40のプレート42の内部に形成されたマイクロチャネル41を、図1のようにプレート42の左右両側に冷却専用システムの凝縮流体が流れる通路と、冷却加温システムの加温時に蒸発流体が流れる通路とにそれぞれグループ化(集約配置化)して、前記通路間の熱交換を伝熱面積の大きなプレート42で行うようにしたことにより、マイクロチャネル41内を流れる凝縮流体と蒸発流体の熱交換をフィンではなく、伝熱面積の大きなプレート42で行うため、熱交換能力を向上させることができ、自動販売機の消費電力量をさらに削減することができる。   As described above, the present embodiment includes the microchannel heat exchanger 40 in which the outdoor heat exchanger of the cooling and heating system and the condenser of the cooling dedicated system are thermally coupled, and the microchannel heat exchanger The microchannel 41 formed inside the plate 42 of the 40 has a passage through which the condensed fluid of the cooling dedicated system flows on both the left and right sides of the plate 42 as shown in FIG. 1 and a passage through which the evaporated fluid flows when the cooling heating system is heated And the heat exchange between the passages is performed by the plate 42 having a large heat transfer area, so that the heat exchange between the condensed fluid and the evaporating fluid flowing in the microchannel 41 is performed. The heat exchange capacity can be improved and the power consumption of the vending machine can be further reduced because the plate 42 has a large heat transfer area instead of the fins. Kill.

また、本実施の形態のマイクロチャネル41内を流れる流体Aと流体Bの流れの向きを互いに逆方向とすることにより、熱交換能力が向上し、自動販売機の消費電力量をより一層低減させることができる。   Further, by making the flow directions of the fluid A and the fluid B flowing in the microchannel 41 of the present embodiment opposite to each other, the heat exchange capability is improved and the power consumption of the vending machine is further reduced. be able to.

(実施の形態2)
図3は、本発明の実施の形態2における自動販売機のマイクロチャネル熱交換器の斜視図である。図4は同実施の形態におけるマイクロチャネル熱交換器の断面図である。
(Embodiment 2)
FIG. 3 is a perspective view of the microchannel heat exchanger of the vending machine according to Embodiment 2 of the present invention. FIG. 4 is a cross-sectional view of the microchannel heat exchanger in the same embodiment.

図3および図4において、プレート42の内部に形成されたマイクロチャネル41を複数の流体通路に区分けし、隣り合うマイクロチャネル41内を流れる流体を互いに異なる流体としたものである。   3 and 4, the microchannel 41 formed inside the plate 42 is divided into a plurality of fluid passages, and the fluids flowing in the adjacent microchannels 41 are different from each other.

以上のように構成された自動販売機のマイクロチャネル熱交換器について、以下その動作、作用を説明する。   The operation and action of the microchannel heat exchanger of the vending machine configured as described above will be described below.

プレート42の内部に形成されたマイクロチャネル41は、流体Aが流れる通路と流体Bが流れる通路とが互い違いに配置されるように区分けされており、例えば、自動販売機の冷却専用システムの凝縮流体を流体Aとし、冷却加温システムの蒸発流体を流体Bとすると、マイクロチャネル41内の凝縮流体と蒸発流体との距離が全ての流体通路間で短くなり、熱交換が促進される。   The microchannel 41 formed inside the plate 42 is divided so that the passage through which the fluid A flows and the passage through which the fluid B flows are alternately arranged. For example, the condensed fluid of the cooling-only system of the vending machine Is the fluid A and the evaporating fluid of the cooling and heating system is the fluid B, the distance between the condensed fluid and the evaporating fluid in the microchannel 41 is shortened between all the fluid passages, and heat exchange is promoted.

以上のように、本実施の形態においては、プレート42の内部に形成されたマイクロチャネル41を複数の流体通路にグループ化し、隣り合うマイクロチャネル41内を流れる流体を互いに異なる流体としたことにより、凝縮流体としての流体Aと、蒸発流体としての流体Bとの距離が全ての流体通路間で短くなり、熱交換が促進されるので、熱交換能力が向上し、自動販売機の消費電力量をさらに削減することができる。   As described above, in the present embodiment, the microchannels 41 formed in the plate 42 are grouped into a plurality of fluid passages, and the fluids flowing in the adjacent microchannels 41 are different from each other, The distance between the fluid A as the condensed fluid and the fluid B as the evaporating fluid is shortened between all the fluid passages, and heat exchange is promoted, so the heat exchange capability is improved and the power consumption of the vending machine is reduced. Further reduction can be achieved.

また、本実施の形態のマイクロチャネル41内を流れる流体Aと流体Bの流れの向きを互いに逆方向とすることにより、熱交換能力が向上し、自動販売機の消費電力量をより一層低減させることができる。   Further, by making the flow directions of the fluid A and the fluid B flowing in the microchannel 41 of the present embodiment opposite to each other, the heat exchange capability is improved and the power consumption of the vending machine is further reduced. be able to.

(実施の形態3)
図5は、本発明の実施の形態3における自動販売機のマイクロチャネル熱交換器の斜視図である。図6は同実施の形態におけるマイクロチャネル熱交換器の断面図である。
(Embodiment 3)
FIG. 5 is a perspective view of a microchannel heat exchanger of the vending machine according to Embodiment 3 of the present invention. FIG. 6 is a cross-sectional view of the microchannel heat exchanger in the same embodiment.

図5および図6において、内部に複数のマイクロチャネル41が形成されたプレート42を、フィン43を介して積層してなるマイクロチャネル熱交換器40を備え、プレート42の内部に形成された複数のマイクロチャネル41を、流体Aが流れる通路と、流体Bが流れる通路とに2分割し、2分割された通路を流れる流体を、上下あるいは左右方向に対面するプレート42との間で互いに異なる流体としたものである。   5 and 6, a microchannel heat exchanger 40 in which a plate 42 having a plurality of microchannels 41 formed therein is stacked via fins 43 is provided, and a plurality of plates formed inside the plate 42 are provided. The microchannel 41 is divided into a passage through which the fluid A flows and a passage through which the fluid B flows, and the fluid flowing through the two divided passages is different from the fluid that is different from each other between the plates 42 facing in the vertical and horizontal directions. It is a thing.

また、流体Aの流れる上下方向に配置されたヘッダA44を連通させる連通管A46と、流体Bの流れる上下方向のヘッダB45を連通させる連通管B47が設けられている。   Further, a communication pipe A46 that communicates the header A44 arranged in the vertical direction in which the fluid A flows and a communication pipe B47 that communicates the vertical header B45 in which the fluid B flows are provided.

以上のように構成された自動販売機のマイクロチャネル熱交換器について、以下その動作、作用を説明する。   The operation and action of the microchannel heat exchanger of the vending machine configured as described above will be described below.

プレート42の内部に形成された複数のマイクロチャネル41を、流体Aが流れる通路と、流体Bが流れる通路とに2分割し、上下方向で対面するプレート42内の流体Aの通路と流体Bの通路とが互違いに配置されるように、連通管A46と連通管B47を、それぞれヘッダA44とヘッダB45に配設する。これにより、フィン43を介して対面するプレート42の流体通路が互いに異なる流体となるので、プレート42で熱交換されると共に、フィン43を介して流体Aと流体Bが熱交換され、熱交換能力が大幅に向上する。   The plurality of microchannels 41 formed inside the plate 42 are divided into a passage through which the fluid A flows and a passage through which the fluid B flows, and the passage of the fluid A and the fluid B in the plate 42 facing each other in the vertical direction. The communication pipe A46 and the communication pipe B47 are provided in the header A44 and the header B45, respectively, so that the passages are alternately arranged. As a result, the fluid passages of the plates 42 facing each other through the fins 43 become different fluids, so that heat exchange is performed by the plates 42 and heat exchange is performed between the fluid A and the fluid B through the fins 43. Is greatly improved.

以上のように本実施の形態においては、複数のプレート42をフィン43を介して積層し、プレート42に形成されたマイクロチャネル41内を流れる流体を、フィン43を介して対面する位置にあるマイクロチャネル41内を流れる流体と異なる流体としたことにより、プレート42を介しての熱交換に加え、フィンを介しての熱交換も行われるため、熱交換能力がより一層向上し、自動販売機の消費電力量を大幅に低減させることができる。   As described above, in the present embodiment, a plurality of plates 42 are stacked via the fins 43, and the fluid flowing in the microchannels 41 formed on the plates 42 is microscopically located at the position facing the fins 43. By using a fluid different from the fluid flowing in the channel 41, heat exchange through the fins is performed in addition to heat exchange through the plate 42, so that the heat exchange capability is further improved and the vending machine Power consumption can be greatly reduced.

以上のように、本発明にかかるマイクロチャネル熱交換器を用いた自動販売機は、フィンと比べて伝熱面積が大きくなるプレートで熱交換を行うため、熱交換能力が向上し、自動販売機の消費電力量を低減することが可能となるので、ホット飲料とコールド飲料を切替えて保存するショーケースや少量の給湯を行うカップ自販機などの加温および冷却時の省エネルギー化が要求される用途にも適用できる。   As described above, since the vending machine using the microchannel heat exchanger according to the present invention performs heat exchange with the plate having a larger heat transfer area than the fins, the heat exchange capacity is improved, and the vending machine is improved. Power consumption, such as showcases that store hot drinks and cold drinks, and cup vending machines that supply a small amount of hot water, for applications that require energy saving during heating and cooling. Is also applicable.

本発明の実施の形態1における自動販売機のマイクロチャネル熱交換器の斜視図The perspective view of the microchannel heat exchanger of the vending machine in Embodiment 1 of this invention 本発明の実施の形態1におけるマイクロチャネル熱交換器の断面図Sectional drawing of the microchannel heat exchanger in Embodiment 1 of this invention 本発明の実施の形態2における自動販売機のマイクロチャネル熱交換器の斜視図The perspective view of the microchannel heat exchanger of the vending machine in Embodiment 2 of this invention 本発明の実施の形態2におけるマイクロチャネル熱交換器の断面図Sectional drawing of the microchannel heat exchanger in Embodiment 2 of this invention 本発明の実施の形態3における自動販売機のマイクロチャネル熱交換器の斜視図The perspective view of the microchannel heat exchanger of the vending machine in Embodiment 3 of this invention 本発明の実施の形態3におけるマイクロチャネル熱交換器の断面図Sectional drawing of the microchannel heat exchanger in Embodiment 3 of this invention 従来の自動販売機の冷媒回路図Refrigerant circuit diagram of a conventional vending machine 従来の室外熱交換器の斜視図A perspective view of a conventional outdoor heat exchanger

符号の説明Explanation of symbols

6 室外熱交換器
11 冷却加温システム
17 冷却専用システム
40 マイクロチャネル熱交換器
41 マイクロチャネル
42 プレート
43 フィン
6 Outdoor Heat Exchanger 11 Cooling and Heating System 17 Cooling Dedicated System 40 Micro Channel Heat Exchanger 41 Micro Channel 42 Plate 43 Fin

Claims (5)

冷却貯蔵室と冷却加温切替室を有し、前記冷却貯蔵室を冷却する冷却システムと前記冷却加温切替室を冷却または加温する冷却加温システムとを独立して備えた自動販売機であり、前記冷却システムに接続された凝縮器と前記冷却加温システムに接続された室外熱交換器とを熱的に連結したマイクロチャネル熱交換器に構成し、前記マイクロチャネル熱交換器を形成するプレートの内部に前記冷却システムの凝縮流体が流れる通路と、前記冷却加温システムの加温時に蒸発流体が流れる通路とを備えたことを特徴とする自動販売機。   A vending machine having a cooling storage chamber and a cooling / heating switching chamber, and independently including a cooling system for cooling the cooling storage chamber and a cooling / heating system for cooling or heating the cooling / heating switching chamber. A microchannel heat exchanger in which a condenser connected to the cooling system and an outdoor heat exchanger connected to the cooling and heating system are thermally coupled to each other is formed to form the microchannel heat exchanger A vending machine comprising: a passage through which condensate fluid of the cooling system flows inside a plate; and a passage through which evaporative fluid flows during heating of the cooling and heating system. プレートの内部に複数の流体通路を形成し、一方側に冷却システムの凝縮流体が流れる複数の通路を、他方側に冷却加温システムの加温時に蒸発流体が流れる複数の通路を、それぞれ集約配置したことを特徴とする請求項1に記載の自動販売機。   A plurality of fluid passages are formed inside the plate, a plurality of passages through which the condensing fluid of the cooling system flows on one side, and a plurality of passages through which the evaporating fluid flows when the cooling and heating system warms up on the other side. The vending machine according to claim 1, wherein プレートの内部に複数の流体通路を形成し、隣り合う通路内を流れる流体が互いに異なるシステムの流体となるように、冷却システムの凝縮流体が流れる通路と冷却加温システムの加温時に蒸発流体が流れる通路とを構成したことを特徴とする請求項1に記載の自動販売機。   A plurality of fluid passages are formed inside the plate, and the evaporating fluid flows when the cooling fluid is heated and the passage through which the condensed fluid of the cooling system flows and the cooling fluid is heated so that the fluid flowing in the adjacent passages becomes a fluid of a different system. The vending machine according to claim 1, wherein the vending machine is configured to flow. 複数のプレートをフィンを介して積層し、前記フィンを介して対面する前記プレート内を流れる流体は、異なるシステムの流体となるように、冷却システムの凝縮流体が流れる通路と冷却加温システムの加温時に蒸発流体が流れる通路とを構成したことを特徴とする請求項1から3のいずれか一項に記載の自動販売機。   A plurality of plates are stacked via fins, and the fluid flowing in the plates facing each other through the fins becomes a fluid of a different system, so that the cooling fluid heating system and the passage through which the condensed fluid of the cooling system flows. The vending machine according to any one of claims 1 to 3, further comprising a passage through which the evaporating fluid flows when warm. 冷却システムの凝縮流体と冷却加温システムの加温時の蒸発流体は、互いに逆方向に流れるように構成したことを特徴とする請求項1から4のいずれか一項に記載の自動販売機。   The vending machine according to any one of claims 1 to 4, wherein the condensing fluid of the cooling system and the evaporating fluid during heating of the cooling and heating system flow in opposite directions to each other.
JP2006297403A 2006-11-01 2006-11-01 Vending machine Pending JP2008117035A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116545A (en) * 2011-01-30 2011-07-06 杭州沈氏换热器有限公司 Microchannel heat exchanger
CN102165498A (en) * 2008-07-18 2011-08-24 格林贝夫有限责任公司 On demand consumable product heating and/or cooling dispenser
CN102313401A (en) * 2011-10-18 2012-01-11 杭州沈氏换热器有限公司 Microchannel heat exchanger
JP2013040733A (en) * 2011-08-18 2013-02-28 Fuji Electric Co Ltd In-chamber wind tunnel structure
JP2020531211A (en) * 2017-09-01 2020-11-05 コニンクレイク ダウエ エフベルツ ベー.フェー. Heating equipment and equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102165498A (en) * 2008-07-18 2011-08-24 格林贝夫有限责任公司 On demand consumable product heating and/or cooling dispenser
CN102116545A (en) * 2011-01-30 2011-07-06 杭州沈氏换热器有限公司 Microchannel heat exchanger
JP2013040733A (en) * 2011-08-18 2013-02-28 Fuji Electric Co Ltd In-chamber wind tunnel structure
CN102313401A (en) * 2011-10-18 2012-01-11 杭州沈氏换热器有限公司 Microchannel heat exchanger
JP2020531211A (en) * 2017-09-01 2020-11-05 コニンクレイク ダウエ エフベルツ ベー.フェー. Heating equipment and equipment
JP7395108B2 (en) 2017-09-01 2023-12-11 コニンクレイク ダウエ エフベルツ ベー.フェー. Heating devices and equipment
US11889946B2 (en) 2017-09-01 2024-02-06 Koninklijke Douwe Egberts B.V. Heating devices and apparatus

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