JP5570364B2 - Two-way refrigeration cycle equipment - Google Patents

Two-way refrigeration cycle equipment Download PDF

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JP5570364B2
JP5570364B2 JP2010212903A JP2010212903A JP5570364B2 JP 5570364 B2 JP5570364 B2 JP 5570364B2 JP 2010212903 A JP2010212903 A JP 2010212903A JP 2010212903 A JP2010212903 A JP 2010212903A JP 5570364 B2 JP5570364 B2 JP 5570364B2
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refrigeration cycle
heat exchanger
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secondary side
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司 高山
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Toshiba Carrier Corp
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Description

本発明の実施の形態は、２元冷凍サイクル装置に関する。 Embodiments of the present invention relate to a binary refrigeration cycle apparatus.

空気調和機やヒートポンプ給湯機などの冷凍サイクル装置には、利用側の熱量を大きくするために一次側冷凍サイクルと二次側冷凍サイクルを備えた２元冷凍サイクル装置が用いられることがある。
２元冷凍サイクル装置の一次側冷凍サイクルには、一次側圧縮機や一次側膨張装置や熱源側熱交換器が設けられており、二次側冷凍サイクルには二次側圧縮機や二次側膨張装置や利用側熱交換器が設けられている。
２元冷凍サイクル装置には中間熱交換器が設けられており、一次側冷凍サイクルと二次側冷凍サイクルとの冷媒間で熱交換する。
また、２元冷凍サイクル装置には、圧縮機に駆動電力を供給するインバータ回路やその他の制御器などを収納した電気部品箱が設けられている。インバータ回路やその他の制御器には、コンデンサやパワートランジスタや抵抗などの発熱する電気部品が使用されている。
これらの発熱部品は、２元冷凍サイクル装置の運転時において、電気部品箱内の発熱部品が熱破壊しないように冷却を行う必要があり、ヒートシンクや送風ファンなどの放熱装置が用いられる。 In refrigeration cycle apparatuses such as air conditioners and heat pump water heaters, a binary refrigeration cycle apparatus having a primary refrigeration cycle and a secondary refrigeration cycle may be used in order to increase the amount of heat on the use side.
The primary side refrigeration cycle of the binary refrigeration cycle apparatus is provided with a primary side compressor, a primary side expansion device, and a heat source side heat exchanger, and the secondary side refrigeration cycle includes a secondary side compressor and a secondary side. An expansion device and a use side heat exchanger are provided.
The two-way refrigeration cycle apparatus is provided with an intermediate heat exchanger, and performs heat exchange between refrigerants in the primary side refrigeration cycle and the secondary side refrigeration cycle.
The binary refrigeration cycle apparatus is provided with an electrical component box that houses an inverter circuit that supplies driving power to the compressor and other controllers. Electric components that generate heat, such as capacitors, power transistors, and resistors, are used in inverter circuits and other controllers.
These heat generating parts need to be cooled so that the heat generating parts in the electric component box are not thermally destroyed during the operation of the two-way refrigeration cycle apparatus, and a heat dissipation device such as a heat sink or a blower fan is used.

特開２００８−２００８３号公報JP 2008-20083 A 特開平０５−１８７７２４号公報Japanese Patent Laid-Open No. 05-187724

しかし、２元冷凍サイクル装置において、電気部品の冷却のためのヒートシンクや送風ファンなどの放熱装置を設ける場合、必要な放熱容量を得るために放熱装置が巨大になり、２元冷凍サイクル装置全体が大型化する問題があった。   However, when a heat radiating device such as a heat sink or a blower fan for cooling an electrical component is provided in the two-way refrigeration cycle device, the heat radiating device becomes enormous in order to obtain a necessary heat radiating capacity. There was a problem of increasing the size.

本発明の実施形態の２元冷凍サイクル装置は、熱源側熱交換機と一次側圧縮機を備える一次側冷凍サイクルと、利用側熱交換機と二次側圧縮機を備える二次側冷凍サイクルを備えている。さらに、一次側冷凍サイクルと二次側冷凍サイクルの作動冷媒を熱交換させるための中間熱交換器と一次側冷凍サイクル及び二次側冷凍サイクルの運転を制御するための発熱する電気部品を収納する電気部品箱が設けられている。
このような２元冷凍サイクル装置において、中間熱交換器と電気部品箱とが熱交換可能に設けられている。 A binary refrigeration cycle apparatus according to an embodiment of the present invention includes a primary side refrigeration cycle including a heat source side heat exchanger and a primary side compressor, and a secondary side refrigeration cycle including a use side heat exchanger and a secondary side compressor. Yes. Furthermore, an intermediate heat exchanger for exchanging heat between the working refrigerant of the primary side refrigeration cycle and the secondary side refrigeration cycle, and an electric component that generates heat for controlling the operation of the primary side refrigeration cycle and the secondary side refrigeration cycle are housed. An electrical component box is provided.
In such a binary refrigeration cycle apparatus, an intermediate heat exchanger and an electric component box are provided so as to be able to exchange heat.

本発明の実施形態に係る２元冷凍サイクル装置の概略図。1 is a schematic diagram of a binary refrigeration cycle apparatus according to an embodiment of the present invention. 本発明の第１の実施形態に係る中間熱交換器と電気部品箱の斜視図。The perspective view of the intermediate heat exchanger and electrical component box which concern on the 1st Embodiment of this invention. 本発明の第２の実施形態に係る中間熱交換器と電気部品箱の斜視図。The perspective view of the intermediate heat exchanger and electrical component box which concern on the 2nd Embodiment of this invention.

図面を用いて本発明の実施形態について説明を行う。
（第１の実施形態）
第１の実施形態について図１及び図２を用いて説明する。
図１に示すように、本実施形態の２元冷凍サイクル装置１００は、一次側冷凍サイクル７と二次側冷凍サイクル１３を備えており、２元冷凍サイクル装置１００は、一次側冷凍サイクル７の冷媒（一次側冷媒）と二次側冷凍サイクル１３の冷媒（二次側冷媒）とが中間熱交換器５で熱交換するように形成されている。
この２元冷凍サイクル装置１００は空気調和機やヒートポンプ給湯機などに用いられる。 Embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
A first embodiment will be described with reference to FIGS. 1 and 2.
As shown in FIG. 1, the binary refrigeration cycle apparatus 100 of the present embodiment includes a primary refrigeration cycle 7 and a secondary refrigeration cycle 13, and the binary refrigeration cycle apparatus 100 includes the primary refrigeration cycle 7. The refrigerant (primary side refrigerant) and the refrigerant of the secondary side refrigeration cycle 13 (secondary side refrigerant) are configured to exchange heat in the intermediate heat exchanger 5.
The two-way refrigeration cycle apparatus 100 is used for an air conditioner, a heat pump water heater, and the like.

例えば、一次側冷媒をＲ４１０Ａとし、二次側冷媒をＲ１３４ａとするヒートポンプ給湯機である場合について以下に説明する。   For example, a case where the heat pump water heater is R410A as the primary refrigerant and R134a as the secondary refrigerant will be described below.

一次側冷凍サイクル７には、一次側圧縮機１と、一次側圧縮機１の吸込口と吐出口に接続された一次側四方弁２と、外気と熱交換する熱源側熱交換器３と、一次側膨張装置４と、中間熱交換器５の一次側中間熱交換器５ａが備えられており、一次側四方弁２と、熱源側熱交換器３と、一次側膨張装置４と、中間熱交換器５の一次側中間熱交換器５ａは一次側冷媒配管６で閉ループ状に順次接続されている。   The primary side refrigeration cycle 7 includes a primary side compressor 1, a primary side four-way valve 2 connected to a suction port and a discharge port of the primary side compressor 1, a heat source side heat exchanger 3 that exchanges heat with outside air, A primary side expansion device 4 and a primary side intermediate heat exchanger 5a are provided, and a primary side four-way valve 2, a heat source side heat exchanger 3, a primary side expansion device 4, and intermediate heat are provided. The primary side intermediate heat exchanger 5 a of the exchanger 5 is sequentially connected in a closed loop form by a primary side refrigerant pipe 6.

二次側冷凍サイクル１３には、二次側圧縮機８と、二次側圧縮機８の吸込口と吐出口に接続された二次側四方弁９と、利用側熱交換器１１と、二次側膨張装置１０と、中間熱交換器５の二次側中間熱交換器５ｂが備えられており、二次側四方弁９と、利用側熱交換器１１と、二次側膨張装置８と、中間熱交換器５ｂの二次側熱交換器５ａは二次側冷媒配管１２で閉ループ状に順次接続されている。     The secondary side refrigeration cycle 13 includes a secondary side compressor 8, a secondary side four-way valve 9 connected to a suction port and a discharge port of the secondary side compressor 8, a use side heat exchanger 11, The secondary side expansion device 10 and the secondary side intermediate heat exchanger 5b of the intermediate heat exchanger 5 are provided, the secondary side four-way valve 9, the use side heat exchanger 11, the secondary side expansion device 8 and the like. The secondary side heat exchanger 5a of the intermediate heat exchanger 5b is sequentially connected in a closed loop shape by the secondary side refrigerant pipe 12.

さらに、二次側冷凍サイクル１３には２元冷凍サイクル装置１００の運転を制御するための発熱する電気部品を収納した電気部品箱１４が備えられている。
この電気部品箱１４は略直方体形状の箱型に形成されており、図示しないが、その内部には、一次側圧縮機１及び二次側圧縮機８を駆動するインバータ回路と、一次側膨張装置４及び二次側膨張装置１０の開度や、一次側四方弁及び二次側四方弁９の切替えを制御する制御器が備えられている。これらインバータ回路及び制御器によって、一次側冷凍サイクル７と二次側冷凍サイクル１３は最適な運転条件で制御される。 Further, the secondary refrigeration cycle 13 is provided with an electrical component box 14 that stores electrical components that generate heat for controlling the operation of the two-way refrigeration cycle apparatus 100.
The electric component box 14 is formed in a substantially rectangular parallelepiped box shape, and although not shown, an inverter circuit for driving the primary side compressor 1 and the secondary side compressor 8 and a primary side expansion device are included therein. The controller which controls the opening degree of 4 and the secondary side expansion apparatus 10, and the switching of a primary side four-way valve and the secondary side four-way valve 9 is provided. By the inverter circuit and the controller, the primary side refrigeration cycle 7 and the secondary side refrigeration cycle 13 are controlled under optimum operating conditions.

ここで、図２に示すように、電気部品箱１４と中間熱交換器５は、接触面積が最大となるように、最大面積を有する面同士が当接して設けられている。   Here, as shown in FIG. 2, the electrical component box 14 and the intermediate heat exchanger 5 are provided such that the surfaces having the maximum area are in contact with each other so that the contact area is maximized.

２元冷凍サイクル装置１００は、上述した構成を有することでヒートポンプ給湯機における出湯運転もしくは除霜運転を行う。   The binary refrigeration cycle apparatus 100 performs the hot water operation or the defrosting operation in the heat pump water heater by having the above-described configuration.

２元冷凍サイクル装置１００の出湯運転時の冷媒の流れを図１に実線矢印で示す。
まず、一次側冷凍サイクル７では、一次側圧縮機１の吐出口から一次側四方弁２、一次側中間熱交換器５ａ、一次側膨張装置４及び熱源側熱交換器３を順次通過し、一次側四方弁２から吸込口を介して一次側圧縮機１へと戻る。
同様に二次側冷凍サイクル１３では、二次側圧縮機８で圧縮された二次側冷媒が、二次側四方弁９、利用側熱交換器１１、二次側膨張装置１０及び二次側中間熱交換器５ｂを順次通過し、二次側四方弁９から吸込口を介して二次側圧縮機８へと戻る。
このとき、一次側冷媒は熱源側熱交換器３で蒸発し、一次側中間熱交換器５ａで凝縮する。また、二次側冷媒は利用側熱交換器１１において凝縮し、利用側である図示しない水回路の水に温熱を供給して、二次側中間熱交換器５ｂでは膨張装置１０によって減圧された液状の冷媒が蒸発し、蒸発熱として一次側冷媒の凝縮熱を吸収する。 The flow of the refrigerant during the hot water operation of the two-way refrigeration cycle apparatus 100 is shown by solid line arrows in FIG.
First, in the primary side refrigeration cycle 7, the primary side four-way valve 2, the primary side intermediate heat exchanger 5a, the primary side expansion device 4, and the heat source side heat exchanger 3 are sequentially passed from the discharge port of the primary side compressor 1 to the primary side. The side four-way valve 2 returns to the primary compressor 1 through the suction port.
Similarly, in the secondary side refrigeration cycle 13, the secondary side refrigerant compressed by the secondary side compressor 8 is converted into the secondary side four-way valve 9, the use side heat exchanger 11, the secondary side expansion device 10, and the secondary side. It passes through the intermediate heat exchanger 5b sequentially, and returns from the secondary side four-way valve 9 to the secondary side compressor 8 through the suction port.
At this time, the primary side refrigerant evaporates in the heat source side heat exchanger 3 and condenses in the primary side intermediate heat exchanger 5a. Further, the secondary refrigerant is condensed in the use side heat exchanger 11 to supply warm heat to water in a water circuit (not shown) on the use side, and decompressed by the expansion device 10 in the secondary intermediate heat exchanger 5b. The liquid refrigerant evaporates and absorbs the condensation heat of the primary refrigerant as the evaporation heat.

中間熱交換器５の温度は、一次側中間熱交換器５ａ内の一次側冷媒の凝縮熱と二次側中間熱交換器５ｂ内の二次側冷媒の蒸発熱によって、５０℃程度かそれ以下となる。このため、中間熱交換器は外気温よりも高温となり、結露することがない。   The temperature of the intermediate heat exchanger 5 is about 50 ° C. or less depending on the condensation heat of the primary refrigerant in the primary intermediate heat exchanger 5a and the evaporation heat of the secondary refrigerant in the secondary intermediate heat exchanger 5b. It becomes. For this reason, the intermediate heat exchanger has a higher temperature than the outside air temperature and does not cause condensation.

熱源側熱交換器３は、蒸発器として外気と熱交換を行うと霜が付着し熱交換効率が低下する。このため、霜が付着した場合には除霜運転を行い付着した霜を除去する必要がある。   When the heat source side heat exchanger 3 exchanges heat with the outside air as an evaporator, frost adheres and the heat exchange efficiency decreases. For this reason, when frost adheres, it is necessary to perform defrost operation and to remove the attached frost.

次に、２元冷凍サイクル装置１００の除霜運転時の冷媒の流れを図１に破線矢印で示す。
上述の出湯運転の状態から一次側四方弁２と、二次側四方弁９を切換える。これにより、図１の破線矢印のように、一次側及び二次側冷凍サイクルの冷媒の流れが出湯運転時と逆になり、一次側冷凍サイクル７では、一次側圧縮機１で圧縮された一次側冷媒は、一次側圧縮機１の吐出口から一次側四方弁２、熱源側熱交換器３、一次側膨張装置４及び一次側中間熱交換器５ａを順次通過し、一次側四方弁２から吸込口を介して一次側圧縮機１へ戻る。
同様に、二次側冷凍サイクルでは、二次側圧縮機８で圧縮された二次側冷媒が、二次側圧縮機８の吐出管から二次側四方弁９、二次側中間熱交換器５ｂ、二次側膨張装置１０及び利用側熱交換器１１を順次通過し、二次側四方弁９から吸込口を介して二次側圧縮機８へと戻る。
このとき、一次側冷媒は熱源側熱交換器３で凝縮し、一次側中間熱交換器５ａで蒸発する。また、二次側冷媒は二次側中間熱交換器５ｂにおいて一次側冷媒から冷熱を得て凝縮し、利用側熱交換器１１内では膨張装置１０によって減圧された二次側冷媒がし利用側の熱を吸収し蒸発する。そして、利用側に冷熱を供給する。 Next, the flow of the refrigerant during the defrosting operation of the two-way refrigeration cycle apparatus 100 is shown by broken line arrows in FIG.
The primary-side four-way valve 2 and the secondary-side four-way valve 9 are switched from the state of the hot water operation described above. As a result, the flow of the refrigerant in the primary side and secondary side refrigeration cycles is opposite to that during the hot water operation as indicated by the dashed arrows in FIG. 1. In the primary side refrigeration cycle 7, the primary compressed by the primary side compressor 1. The side refrigerant sequentially passes from the discharge port of the primary side compressor 1 through the primary side four-way valve 2, the heat source side heat exchanger 3, the primary side expansion device 4, and the primary side intermediate heat exchanger 5 a, and from the primary side four-way valve 2. It returns to the primary side compressor 1 through a suction inlet.
Similarly, in the secondary side refrigeration cycle, the secondary side refrigerant compressed by the secondary side compressor 8 is discharged from the discharge pipe of the secondary side compressor 8 to the secondary side four-way valve 9 and the secondary side intermediate heat exchanger. 5b, the secondary side expansion device 10 and the use side heat exchanger 11 are sequentially passed, and the secondary side four-way valve 9 returns to the secondary side compressor 8 through the suction port.
At this time, the primary side refrigerant is condensed in the heat source side heat exchanger 3 and evaporated in the primary side intermediate heat exchanger 5a. Further, the secondary side refrigerant obtains cold heat from the primary side refrigerant in the secondary side intermediate heat exchanger 5b and condenses, and the secondary side refrigerant decompressed by the expansion device 10 in the use side heat exchanger 11 is used on the use side. It absorbs the heat and evaporates. Then, cold energy is supplied to the user side.

中間熱交換器５の温度は、一次側中間熱交換器５ａ内の一次側冷媒の蒸発熱と二次側中間熱交換器５ｂ内の二次側冷媒の凝縮熱によって３０℃程度かそれ以下となる。   The temperature of the intermediate heat exchanger 5 is about 30 ° C. or less depending on the evaporation heat of the primary refrigerant in the primary intermediate heat exchanger 5a and the condensation heat of the secondary refrigerant in the secondary intermediate heat exchanger 5b. Become.

ここで、インバータ回路や制御器には、コンデンサやパワートランジスタや抵抗などの発熱する電気部品が使用されており、これらの発熱する電気部品の許容温度は９０℃程度とされている。これを超える温度に異常発熱すると発熱する電気部品の熱破壊を引き起こすことがある。   Here, the inverter circuit and the controller use electric components that generate heat such as capacitors, power transistors, and resistors, and the allowable temperature of these electric components that generate heat is about 90 ° C. Abnormal heat generation at temperatures exceeding this range may cause thermal destruction of the heat-generating electrical components.

本実施形態の電気部品箱１４は中間熱交換器５に当接して設けられており、電気部品箱１４内で生じた熱は、中間熱交換器５に吸熱されるため、電気部品箱１４内の発熱する電気部品の温度が中間熱交換器の温度付近に維持でき、冷却を効果的に行うことが出来る。   The electrical component box 14 of this embodiment is provided in contact with the intermediate heat exchanger 5, and the heat generated in the electrical component box 14 is absorbed by the intermediate heat exchanger 5, so The temperature of the heat generating electrical components can be maintained near the temperature of the intermediate heat exchanger, and cooling can be performed effectively.

これにより、電気部品箱１４に巨大なヒートシンクを設けたり、冷却用の送風ファンを設けることなく、異常発熱による電気部品箱１４内の発熱する伝記部品の熱破壊を防止することができる。これにより電気部品箱１４を小型化でき、信頼性が高く小型の２元冷凍サイクル装置１００を提供することができる。   Thereby, without destroying the electrical component box 14 with a huge heat sink and without providing a cooling fan, it is possible to prevent thermal destruction of the biographical components that generate heat in the electrical component box 14 due to abnormal heat generation. Thereby, the electrical component box 14 can be reduced in size, and the reliable two-dimensional refrigeration cycle apparatus 100 can be provided.

一般的に、一次側冷媒と二次側冷媒には、特性の異なる作動冷媒が用いられる。
例えば、２元冷凍サイクル装置１００は、利用側熱交換器１４を水熱交換器とし９０℃近い湯を生成するための高温ヒートポンプ給湯機である場合、一次側冷凍サイクルに使用される一次側冷媒に、R４１０Ａのような低外気温（―１５℃程度）においても良好な性能を有する作動冷媒が好ましく、二次側冷媒にはR１３４ａのような高温（９５℃程度）において良好な性能を有する作動冷媒が好ましい。
また、利用側熱交換器１４を空気熱交換器とし９０℃近い熱風を吹出すヒートポンプ乾燥機とする場合にも上述のような作動冷媒が好ましい。
（第２の実施形態） Generally, working refrigerants having different characteristics are used for the primary side refrigerant and the secondary side refrigerant.
For example, when the binary refrigeration cycle apparatus 100 is a high-temperature heat pump water heater for generating hot water close to 90 ° C. using the use-side heat exchanger 14 as a water heat exchanger, the primary-side refrigerant used in the primary-side refrigeration cycle. In addition, a working refrigerant having good performance even at a low outside air temperature (about −15 ° C.) such as R410A is preferable, and an operation having good performance at a high temperature (about 95 ° C.) like R134a is preferable for the secondary side refrigerant. A refrigerant is preferred.
The working refrigerant as described above is also preferable when the use-side heat exchanger 14 is an air heat exchanger and a heat pump dryer that blows out hot air close to 90 ° C.
(Second Embodiment)

次に第２の実施形態について説明する。尚、第１の実施形態と同一の構成については一部説明を省略する。
第２の実施形態の２元冷凍サイクル装置１００は第１の実施形態と略同一の構成である一次側冷凍サイクル７と二次側冷凍サイクル１３を備えている。
第１の実施形態と異なる構成として中間熱交換器５と電気部品箱１４とを熱交換させるヒートパイプ装置１５が設けられている。 Next, a second embodiment will be described. A part of the same configuration as that of the first embodiment will not be described.
The binary refrigeration cycle apparatus 100 of the second embodiment includes a primary side refrigeration cycle 7 and a secondary side refrigeration cycle 13 that have substantially the same configuration as that of the first embodiment.
A heat pipe device 15 for exchanging heat between the intermediate heat exchanger 5 and the electrical component box 14 is provided as a configuration different from that of the first embodiment.

第２の実施形態は図３に示すように中間熱交換器５と電気部品箱１４とがヒートパイプ装置１５によって伝熱可能に接続されている。ヒートパイプ装置１５は伝熱板１６、１７及びヒートパイプ１８から構成されている。中間熱交換器５表面には伝熱板１６が当接して設けられており、電気部品箱１４表面には伝熱板１７が当接して設けられている。この伝熱板１６、１７はヒートパイプ１８を介して接続されており、内部に封入された揮発性の作動液が作動することで良好な熱交換が行われる。   In the second embodiment, as shown in FIG. 3, the intermediate heat exchanger 5 and the electrical component box 14 are connected to each other by a heat pipe device 15 so that heat can be transferred. The heat pipe device 15 includes heat transfer plates 16 and 17 and a heat pipe 18. A heat transfer plate 16 is provided in contact with the surface of the intermediate heat exchanger 5, and a heat transfer plate 17 is provided in contact with the surface of the electrical component box 14. The heat transfer plates 16 and 17 are connected via a heat pipe 18, and good heat exchange is performed by operating a volatile hydraulic fluid sealed inside.

第２の実施形態のように、中間熱交換器５と電気部品箱１４をヒートパイプ装置１５（伝熱板１６、１７及びヒートパイプ１８）で接続し、電機部品箱１４の熱を中間熱交換器５に吸熱させることで、中間熱交換器５と電気部品箱１４とを離して配置させることができ、配置の制約を受けることがない。そして、電気部品箱１４内の発熱する電気部品の異常発熱を抑制し、信頼性の高い２元冷凍サイクル装置１００を提供することができる。   As in the second embodiment, the intermediate heat exchanger 5 and the electric component box 14 are connected by the heat pipe device 15 (heat transfer plates 16, 17 and heat pipe 18), and the heat of the electric component box 14 is intermediate heat exchange. By causing the unit 5 to absorb heat, the intermediate heat exchanger 5 and the electrical component box 14 can be arranged apart from each other, and there is no restriction on the arrangement. And the abnormal heat_generation | fever of the electrical component which generate | occur | produces the heat | fever in the electrical component box 14 can be suppressed, and the reliable two way refrigerating-cycle apparatus 100 can be provided.

本発明は、上記実施形態に限定されない。さらに、本発明の実施の形態に開示されている複数の構成要素を適宜組み合わせることにより種々の発明を形成できる。例えば、本発明の実施の形態に示される全構成要素から幾つかの構成要素を削除してもよい。更に、異なる実施の形態に亘る構成要素を適宜組み合わせてもよい。   The present invention is not limited to the above embodiment. Furthermore, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiments of the present invention. For example, you may delete some components from all the components shown by embodiment of this invention. Furthermore, you may combine the component covering different embodiment suitably.

１…一次側圧縮機、２…一次側四方弁、３…熱源側熱交換器、４…一次側膨張装置、５…中間熱交換器、６…一次側冷媒配管、７…一次側冷凍サイクル、８…二次側圧縮機、９……二次側四方弁、１０…二次側膨張装置、１１…利用側熱交換器、１２…二次側冷媒配管、１３…二次側冷凍サイクル、１４…電気部品箱、１５…ヒートパイプ装置、１６、１７…伝熱板、１８…ヒートパイプ、１００…２元冷凍サイクル装置 DESCRIPTION OF SYMBOLS 1 ... Primary side compressor, 2 ... Primary side four-way valve, 3 ... Heat source side heat exchanger, 4 ... Primary side expansion apparatus, 5 ... Intermediate heat exchanger, 6 ... Primary side refrigerant | coolant piping, 7 ... Primary side refrigeration cycle, DESCRIPTION OF SYMBOLS 8 ... Secondary side compressor, 9 ... Secondary side four-way valve, 10 ... Secondary side expansion apparatus, 11 ... Usage side heat exchanger, 12 ... Secondary side refrigerant | coolant piping, 13 ... Secondary side refrigeration cycle, 14 ... Electric parts box, 15 ... Heat pipe device, 16, 17 ... Heat transfer plate, 18 ... Heat pipe, 100 ... Two-way refrigeration cycle device

Claims (3)

熱源側熱交換機と一次側圧縮機を備える一次側冷凍サイクルと、
利用側熱交換機と二次側圧縮機を備える二次側冷凍サイクルと、
前記一次側冷凍サイクルと前記二次側冷凍サイクルの作動冷媒を熱交換させるための中間熱交換器と、
前記一次側冷凍サイクル及び前記二次側冷凍サイクルの運転を制御するための発熱する電気部品を収納する電気部品箱とを、
備えた２元冷凍サイクル装置において、
前記中間熱交換器と前記電気部品箱とが熱交換可能に設けられたことを特徴とする２元冷凍サイクル装置。 A primary refrigeration cycle comprising a heat source side heat exchanger and a primary side compressor;
A secondary refrigeration cycle comprising a use side heat exchanger and a secondary side compressor;
An intermediate heat exchanger for exchanging heat between the working refrigerant of the primary side refrigeration cycle and the secondary side refrigeration cycle;
An electrical component box that houses electrical components that generate heat for controlling the operation of the primary side refrigeration cycle and the secondary side refrigeration cycle,
In the provided dual refrigeration cycle apparatus,
The two-way refrigeration cycle apparatus, wherein the intermediate heat exchanger and the electric component box are provided so as to be able to exchange heat. 前記中間熱交換器と前記電気部品箱とが当接して設けられたことを特徴とする請求項１に記載の２元冷凍サイクル装置。   The two-way refrigeration cycle apparatus according to claim 1, wherein the intermediate heat exchanger and the electric component box are provided in contact with each other. 前記中間熱交換器と前記電気部品箱とがヒートパイプ装置により熱交換可能に接続されたことを特徴とする請求項１に記載の２元冷凍サイクル装置。
2. The two-way refrigeration cycle apparatus according to claim 1, wherein the intermediate heat exchanger and the electrical component box are connected to each other by a heat pipe device so that heat can be exchanged.
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