JP5287817B2 - Air conditioner - Google Patents
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- JP5287817B2 JP5287817B2 JP2010223762A JP2010223762A JP5287817B2 JP 5287817 B2 JP5287817 B2 JP 5287817B2 JP 2010223762 A JP2010223762 A JP 2010223762A JP 2010223762 A JP2010223762 A JP 2010223762A JP 5287817 B2 JP5287817 B2 JP 5287817B2
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Description
本発明は、圧縮機で発生した熱を蓄積する蓄熱材を収容する蓄熱槽と、蓄熱材と熱交換を行う蓄熱熱交換器とを備えた空気調和機に関する。 The present invention relates to an air conditioner including a heat storage tank that stores a heat storage material that stores heat generated by a compressor, and a heat storage heat exchanger that exchanges heat with the heat storage material.
従来、ヒートポンプ式空気調和機による暖房運転時、室外熱交換器に着霜した場合には、暖房サイクルから冷房サイクルに四方弁を切り替えて除霜を行っている。この除霜方式では、室内ファンは停止するものの、室内機から冷気が徐々に放出されることから暖房感が失われるという欠点がある。 Conventionally, when the outdoor heat exchanger is frosted during the heating operation by the heat pump air conditioner, defrosting is performed by switching the four-way valve from the heating cycle to the cooling cycle. In this defrosting method, although the indoor fan is stopped, there is a disadvantage that a feeling of heating is lost because cold air is gradually discharged from the indoor unit.
そこで、室外機に設けられた圧縮機に蓄熱装置を設け、暖房運転中に蓄熱槽に蓄えられた圧縮機の廃熱を利用して除霜するようにしたものが提案されている（例えば、特許文献１参照）。 Accordingly, a heat storage device is provided in the compressor provided in the outdoor unit, and the one that is defrosted using the waste heat of the compressor stored in the heat storage tank during the heating operation has been proposed (for example, Patent Document 1).
図１６は、このような除霜方式を採用した冷凍サイクル装置の一例を示しており、室外機に設けられた圧縮機１００と四方弁１０２と室外熱交換器１０４とキャピラリチューブ１０６と、室内機に設けられた室内熱交換器１０８とを冷媒配管で接続するとともに、キャピラリチューブ１０６をバイパスする第１バイパス回路１１０と、圧縮機１００の吐出側から四方弁１０２を介して室内熱交換器１０８へ至る配管に一端を接続し他端をキャピラリチューブ１０６から室外熱交換器１０４へ至る配管に接続した第２バイパス回路１１２が設けられている。また、第１バイパス回路１１０には、二方弁１１４と逆止弁１１６と蓄熱熱交換器１１８が設けられ、第２バイパス回路１１２には、二方弁１２０と逆止弁１２２が設けられている。 FIG. 16 shows an example of a refrigeration cycle apparatus that employs such a defrosting method. The compressor 100, the four-way valve 102, the outdoor heat exchanger 104, the capillary tube 106, and the indoor unit provided in the outdoor unit. Is connected to the indoor heat exchanger 108 provided by the refrigerant pipe, the first bypass circuit 110 for bypassing the capillary tube 106, and the discharge side of the compressor 100 to the indoor heat exchanger 108 via the four-way valve 102. A second bypass circuit 112 is provided in which one end is connected to the connecting pipe and the other end is connected to the pipe extending from the capillary tube 106 to the outdoor heat exchanger 104. The first bypass circuit 110 is provided with a two-way valve 114, a check valve 116, and a heat storage heat exchanger 118, and the second bypass circuit 112 is provided with a two-way valve 120 and a check valve 122. Yes.
さらに、圧縮機１００の周囲には蓄熱槽１２４が設けられており、蓄熱槽１２４の内部には、蓄熱熱交換器１１８と熱交換するための蓄熱材１２６が充填されている。この蓄熱槽１２４は、圧縮機１００の外周面を覆うような形状に構成されている。 Further, a heat storage tank 124 is provided around the compressor 100, and the heat storage tank 124 is filled with a heat storage material 126 for exchanging heat with the heat storage heat exchanger 118. The heat storage tank 124 is configured to cover the outer peripheral surface of the compressor 100.
この冷凍サイクルにおいて、除霜運転時には、二つの二方弁１１４，１２０が開かれ、圧縮機１００から吐出された冷媒の一部は第２バイパス回路１１２へと流れ、残りの冷媒は四方弁１０２と室内熱交換器１０８へと流れる。また、室内熱交換器１０８を流れた冷媒は暖房に利用された後、わずかの冷媒がキャピラリチューブ１０６を通って室外熱交換器１０４へと流れる一方、残りの大部分の冷媒は第１バイパス回路１１０へ流入し、二方弁１１４を通って蓄熱熱交換器１１８へと流れて蓄熱材１２６より熱を奪い、逆止弁１１６を通った後、キャピラリチューブ１０６を通過した冷媒と合流して室外熱交換器１０４へと流れる。その後、室外熱交換器１０４の入口で第２バイパス回路１１２を流れてきた冷媒と合流し、冷媒が持つ熱を利用して除霜を行い、さらに四方弁１０２を通過した後、圧縮機１００に吸入される。 In this refrigeration cycle, during the defrosting operation, the two two-way valves 114 and 120 are opened, a part of the refrigerant discharged from the compressor 100 flows to the second bypass circuit 112, and the remaining refrigerant is the four-way valve 102. And flows to the indoor heat exchanger 108. In addition, after the refrigerant flowing through the indoor heat exchanger 108 is used for heating, a small amount of refrigerant flows to the outdoor heat exchanger 104 through the capillary tube 106, while the remaining most of the refrigerant passes through the first bypass circuit. 110 flows into the heat storage heat exchanger 118 through the two-way valve 114, takes heat from the heat storage material 126, passes through the check valve 116, and then merges with the refrigerant that has passed through the capillary tube 106 to the outdoor. It flows to the heat exchanger 104. After that, it merges with the refrigerant flowing through the second bypass circuit 112 at the inlet of the outdoor heat exchanger 104, performs defrosting using the heat of the refrigerant, passes through the four-way valve 102, and then enters the compressor 100. Inhaled.
この冷凍サイクル装置においては、第２バイパス回路１１２を設けることで、除霜時に圧縮機１００から吐出されたホットガスを室外熱交換器１０４に導くとともに、室外熱交換器１０４に流入する冷媒の圧力を高く保つことができるので、除霜能力を高めることができ、極めて短時間に除霜を完了することができる。 In this refrigeration cycle apparatus, by providing the second bypass circuit 112, the hot gas discharged from the compressor 100 during defrosting is guided to the outdoor heat exchanger 104 and the pressure of the refrigerant flowing into the outdoor heat exchanger 104 Therefore, the defrosting ability can be increased, and the defrosting can be completed in a very short time.
しかしながら、特許文献１に記載する空気調和機は、蓄熱槽１２４の内部に、蓄熱熱交換器１１８を入れる構成となっているため、輸送時等の振動によって蓄熱熱交換器１１８と蓄熱槽１２４とが互いに干渉し、蓄熱槽１２４が破損してしまうという課題を有していた。 However, since the air conditioner described in Patent Document 1 has a configuration in which the heat storage heat exchanger 118 is placed inside the heat storage tank 124, the heat storage heat exchanger 118 and the heat storage tank 124 are caused by vibration during transportation or the like. Interfered with each other, and the heat storage tank 124 was damaged.
本発明は、前記従来の課題を解決するもので、蓄熱槽の破損を抑制することができる空気調和機を提供することを目的とする。 This invention solves the said conventional subject, and it aims at providing the air conditioner which can suppress the failure | damage of a thermal storage tank.
前記従来の課題を解決するために、本発明は、熱を蓄積する蓄熱材を収容する蓄熱槽と、前記蓄熱槽の内部に冷媒が流れる蓄熱熱交換器とを備えた空気調和機であって、前記蓄熱槽の蓋体に前記蓄熱熱交換器を挿入する貫通孔を設け、前記蓄熱熱交換器を弾性体で構成した栓体を介して前記貫通孔に固定し、前記栓体の外周面に上側凸部と下側凸部とを設け、前記上側凸部と前記下側凸部とを前記貫通孔の内周面に密着させ、前記上側凸部と前記下側凸部との間に中間凸部を設け、前記中間凸部の外径は前記貫通孔の内径よりも小さいことにより、弾性体で構成した栓体が振動を吸収し、蓄熱槽と蓄熱熱交換器との間に掛かる負荷および蓄熱熱交換器の動きを低減することができる。 In order to solve the conventional problems, the present invention is an air conditioner including a heat storage tank that stores a heat storage material that stores heat, and a heat storage heat exchanger in which a refrigerant flows inside the heat storage tank. A through hole for inserting the heat storage heat exchanger is provided in the lid of the heat storage tank, and the heat storage heat exchanger is fixed to the through hole via a plug body made of an elastic body, and the outer peripheral surface of the plug body An upper convex portion and a lower convex portion are provided, and the upper convex portion and the lower convex portion are brought into close contact with the inner peripheral surface of the through hole, and between the upper convex portion and the lower convex portion. An intermediate convex portion is provided, and the outer diameter of the intermediate convex portion is smaller than the inner diameter of the through hole, so that the plug body made of an elastic body absorbs vibration and is applied between the heat storage tank and the heat storage heat exchanger. The movement of the load and the heat storage heat exchanger can be reduced.
本発明の空気調和機は、蓄熱槽の破損を抑制することができる空気調和機を提供することができる。 The air conditioner of this invention can provide the air conditioner which can suppress the failure | damage of a thermal storage tank.
第１の発明は、本発明は、熱を蓄積する蓄熱材を収容する蓄熱槽と、前記蓄熱槽の内部に冷媒が流れる蓄熱熱交換器とを備えた空気調和機であって、前記蓄熱槽の蓋体に前記蓄熱熱交換器を挿入する貫通孔を設け、前記蓄熱熱交換器を弾性体で構成した栓体を介して前記貫通孔に固定し、前記栓体の外周面に上側凸部と下側凸部とを設け、前記上側凸部と前記下側凸部とを前記貫通孔の内周面に密着させ、前記上側凸部と前記下側凸部との間に中間凸部を設け、前記中間凸部の外径は前記貫通孔の内径よりも小さいことにより、弾性体で構成した栓体が振動を吸収し、蓄熱槽と蓄熱熱交換器との間に掛かる負荷を低減し、上下２箇所でシールすることができるので、輸送時等に蓄熱熱交換器の動きが激しくなったとしても上側凸部もしくは下側凸部のいずれかで蓄熱材が外部に放出することを防ぎ、また蓄熱熱交換器の動きを抑制することができる。上側凸部および下側凸部だけでは２点でしか支えておらず、中間凸部を設けていなければ、上側凸部および下側凸部の間に撓みが発生して動きを抑制することができない。 1st invention is an air conditioner provided with the thermal storage tank which accommodates the thermal storage material which accumulate | stores heat | fever, and the thermal storage heat exchanger with which a refrigerant | coolant flows into the inside of the said thermal storage tank, This invention is the said thermal storage tank. A through hole for inserting the heat storage heat exchanger is provided in the lid body, the heat storage heat exchanger is fixed to the through hole via a plug body made of an elastic body, and an upper convex portion is formed on the outer peripheral surface of the plug body And a lower convex portion, the upper convex portion and the lower convex portion are brought into close contact with the inner peripheral surface of the through hole, and an intermediate convex portion is provided between the upper convex portion and the lower convex portion. provided, the outer diameter of the intermediate protrusions by less than the inner diameter of the through hole, absorbing the plug body vibration of an elastic material, to reduce the load applied between the storage tank and the heat storage heat exchanger Since it can be sealed at two places, upper and lower, even if the heat storage heat exchanger moves violently during transportation, Heat storage material in one of the convex portion prevents the release to the outside, also it is possible to suppress the movement of the heat storage heat exchanger. Only the upper and lower convex portions support only at two points, and if no intermediate convex portion is provided, bending occurs between the upper and lower convex portions to suppress movement. Can not.
第２の発明は、特に第１の発明において、蓄熱熱交換器の一部に栓体へ固定する熱交側凸部と、栓体に熱交側凸部に嵌合する嵌合部とを備え、熱交側凸部の外径は嵌合部の内径よりも小さいことにより、熱交側凸部をしっかりと栓体に固定することができるとともに、熱交側凸部の外径に製造時のバラツキが発生しても、栓体に蓄熱熱交換器を取り付けることができる。 According to a second aspect of the present invention, in the first aspect of the invention, the heat exchange side convex portion that is fixed to the plug body on a part of the heat storage heat exchanger, and the fitting portion that fits the plug body on the heat exchange side convex portion. The heat exchange side convex part is smaller than the inner diameter of the fitting part, so that the heat exchange side convex part can be firmly fixed to the plug and manufactured to the outer diameter of the heat exchange side convex part. Even if time variation occurs, the heat storage heat exchanger can be attached to the plug.
第３の発明は、特に第１または第２の発明において、中間凸部の外径と貫通孔の内径との隙間と、熱交側凸部の外径と嵌合部の内径との隙間との和よりも、熱交側凸部の高さの方が大きいことにより、確実に蓄熱熱交換器が栓体から抜けない構成とすることができる。 The third invention is the first or second invention, in particular, the gap between the outer diameter of the intermediate convex portion and the inner diameter of the through hole, and the gap between the outer diameter of the heat exchange side convex portion and the inner diameter of the fitting portion. Since the height of the heat exchange side convex portion is larger than the sum of the above, it is possible to ensure that the heat storage heat exchanger does not come out of the plug body.
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。なお、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
（実施の形態１）
図１は、本発明に係る蓄熱装置を備えた空気調和機の構成を示しており、空気調和機は、冷媒配管で互いに接続された室外機２と室内機４とで構成されている。
(Embodiment 1)
FIG. 1 shows a configuration of an air conditioner including a heat storage device according to the present invention, and the air conditioner is composed of an outdoor unit 2 and an indoor unit 4 that are connected to each other through a refrigerant pipe.
図１に示されるように、室外機２の内部には、圧縮機６と四方弁８とストレーナ１０と膨張弁１２と室外熱交換器１４とが設けられ、室内機４の内部には、室内熱交換器１６が設けられ、これらは冷媒配管を介して互いに接続されることで冷凍サイクルを構成している。 As shown in FIG. 1, a compressor 6, a four-way valve 8, a strainer 10, an expansion valve 12, and an outdoor heat exchanger 14 are provided inside the outdoor unit 2. A heat exchanger 16 is provided, and these are connected to each other via a refrigerant pipe to constitute a refrigeration cycle.
さらに詳述すると、圧縮機６と室内熱交換器１６は、四方弁８が設けられた冷媒配管１８を介して接続され、室内熱交換器１６と膨張弁１２は、ストレーナ１０が設けられた冷媒配管２０を介して接続されている。また、膨張弁１２と室外熱交換器１４は冷媒配管２２を介して接続され、室外熱交換器１４と圧縮機６は冷媒配管２４を介して接続されている。 More specifically, the compressor 6 and the indoor heat exchanger 16 are connected via a refrigerant pipe 18 provided with the four-way valve 8, and the indoor heat exchanger 16 and the expansion valve 12 are refrigerant provided with the strainer 10. It is connected via a pipe 20. The expansion valve 12 and the outdoor heat exchanger 14 are connected via a refrigerant pipe 22, and the outdoor heat exchanger 14 and the compressor 6 are connected via a refrigerant pipe 24.
冷媒配管２４の中間部には四方弁８が配置されており、圧縮機６の冷媒吸入側における冷媒配管２４には、液相冷媒と気相冷媒を分離するためのアキュームレータ２６が設けられている。また、圧縮機６と冷媒配管２２は、冷媒配管２８を介して接続されており、冷媒配管２８には第１電磁弁３０が設けられている。 A four-way valve 8 is disposed in the middle of the refrigerant pipe 24, and an accumulator 26 for separating the liquid-phase refrigerant and the gas-phase refrigerant is provided in the refrigerant pipe 24 on the refrigerant suction side of the compressor 6. . The compressor 6 and the refrigerant pipe 22 are connected via a refrigerant pipe 28, and a first electromagnetic valve 30 is provided in the refrigerant pipe 28.
さらに、圧縮機６の周囲には蓄熱槽３２が設けられ、蓄熱槽３２の内部には、蓄熱熱交換器３４が設けられるとともに、蓄熱熱交換器３４と熱交換するための蓄熱材（例えば、エチレングリコール水溶液）３６が充填されており、蓄熱槽３２と蓄熱熱交換器３４と蓄熱材３６とで蓄熱装置を構成している。 Further, a heat storage tank 32 is provided around the compressor 6, and a heat storage heat exchanger 34 is provided inside the heat storage tank 32, and a heat storage material for exchanging heat with the heat storage heat exchanger 34 (for example, An ethylene glycol aqueous solution) 36 is filled, and the heat storage tank 32, the heat storage heat exchanger 34, and the heat storage material 36 constitute a heat storage device.
また、冷媒配管２０と蓄熱熱交換器３４は冷媒配管３８を介して接続され、蓄熱熱交換器３４と冷媒配管２４は冷媒配管４０を介して接続されており、冷媒配管３８には第２電磁弁４２が設けられている。 The refrigerant pipe 20 and the heat storage heat exchanger 34 are connected via a refrigerant pipe 38, and the heat storage heat exchanger 34 and the refrigerant pipe 24 are connected via a refrigerant pipe 40, and the refrigerant pipe 38 has a second electromagnetic wave. A valve 42 is provided.
室内機４の内部には、室内熱交換器１６に加えて、送風ファン（図示せず）と上下羽根（図示せず）と左右羽根（図示せず）とが設けられており、室内熱交換器１６は、送風ファンにより室内機４の内部に吸込まれた室内空気と、室内熱交換器１６の内部を流れる冷媒との熱交換を行い、暖房時には熱交換により暖められた空気を室内に吹き出す一方、冷房時には熱交換により冷却された空気を室内に吹き出す。上下羽根は、室内機４から吹き出される空気の方向を必要に応じて上下に変更し、左右羽根は、室内機４から吹き出される空気の方向を必要に応じて左右に変更する。 In addition to the indoor heat exchanger 16, an air blower fan (not shown), upper and lower blades (not shown), and left and right blades (not shown) are provided inside the indoor unit 4, and indoor heat exchange is performed. The unit 16 exchanges heat between the indoor air sucked into the interior of the indoor unit 4 by the blower fan and the refrigerant flowing through the interior of the indoor heat exchanger 16, and blows out the air warmed by heat exchange into the room during heating. On the other hand, air cooled by heat exchange is blown into the room during cooling. The upper and lower blades change the direction of air blown from the indoor unit 4 up and down as necessary, and the left and right blades change the direction of air blown from the indoor unit 4 to right and left as needed.
なお、圧縮機６、送風ファン、上下羽根、左右羽根、四方弁８、膨張弁１２、電磁弁３０，４２等は制御装置（図示せず、例えばマイコン）に電気的に接続され、制御装置により制御される。 The compressor 6, the blower fan, the upper and lower blades, the left and right blades, the four-way valve 8, the expansion valve 12, the electromagnetic valves 30 and 42, etc. are electrically connected to a control device (not shown, for example, a microcomputer). Be controlled.
上記構成の本発明に係る空気調和機において、各部品の相互の接続関係と機能とを、暖房運転時を例にとり冷媒の流れとともに説明する。 In the air conditioner according to the present invention having the above-described configuration, the mutual connection relationship and function of each component will be described together with the flow of the refrigerant, taking the heating operation as an example.
圧縮機６の吐出口から吐出された冷媒は、冷媒配管１８を通って四方弁８から室内熱交換器１６へと至る。室内熱交換器１６で室内空気と熱交換して凝縮した冷媒は、室内熱交換器１６を出て冷媒配管２０を通り、膨張弁１２への異物侵入を防止するストレーナ１０を通って、膨張弁１２に至る。膨張弁１２で減圧した冷媒は、冷媒配管２２を通って室外熱交換器１４に至り、室外熱交換器１４で室外空気と熱交換して蒸発した冷媒は、冷媒配管２４と四方弁８とアキュームレータ２６を通って圧縮機６の吸入口へと戻る。 The refrigerant discharged from the discharge port of the compressor 6 reaches the indoor heat exchanger 16 from the four-way valve 8 through the refrigerant pipe 18. The refrigerant condensed by exchanging heat with the indoor air in the indoor heat exchanger 16 passes through the refrigerant pipe 20 through the indoor heat exchanger 16, passes through the strainer 10 that prevents foreign matter from entering the expansion valve 12, and then the expansion valve. To 12. The refrigerant decompressed by the expansion valve 12 reaches the outdoor heat exchanger 14 through the refrigerant pipe 22, and the refrigerant evaporated by exchanging heat with the outdoor air in the outdoor heat exchanger 14 is the refrigerant pipe 24, the four-way valve 8, and the accumulator. 26 and returns to the suction port of the compressor 6.
また、冷媒配管１８の圧縮機６吐出口と四方弁８の間から分岐した冷媒配管２８は、第１電磁弁３０を介して冷媒配管２２の膨張弁１２と室外熱交換器１４の間に合流している。 In addition, the refrigerant pipe 28 branched from between the compressor 6 discharge port of the refrigerant pipe 18 and the four-way valve 8 joins between the expansion valve 12 of the refrigerant pipe 22 and the outdoor heat exchanger 14 via the first electromagnetic valve 30. doing.
さらに、内部に蓄熱材３６と蓄熱熱交換器３４を収納した蓄熱槽３２は、詳細は後述するが、圧縮機６に接して覆うように配置され、圧縮機６で発生した熱を蓄熱材３６に蓄積し、冷媒配管２０から室内熱交換器１６とストレーナ１０の間で分岐した冷媒配管３８は、第２電磁弁４２を経て蓄熱熱交換器３４の入口へと至り、蓄熱熱交換器３４の出口から出た冷媒配管４０は、冷媒配管２４における四方弁８とアキュームレータ２６の間に合流する。 Furthermore, although the heat storage tank 32 which accommodated the heat storage material 36 and the heat storage heat exchanger 34 in the inside is mentioned later for details, it arrange | positions so that it may contact and cover the compressor 6, and the heat storage material 36 The refrigerant pipe 38 that is stored in the refrigerant pipe 20 and branched from the refrigerant pipe 20 between the indoor heat exchanger 16 and the strainer 10 reaches the inlet of the heat storage heat exchanger 34 via the second electromagnetic valve 42, and the heat storage heat exchanger 34. The refrigerant pipe 40 exiting from the outlet merges between the four-way valve 8 and the accumulator 26 in the refrigerant pipe 24.
次に、図１に示される空気調和機の通常暖房時の動作及び冷媒の流れを模式的に示す図２を参照しながら通常暖房時の動作を説明する。 Next, the operation during normal heating will be described with reference to FIG. 2 schematically showing the operation during normal heating and the flow of the refrigerant of the air conditioner shown in FIG.
通常暖房運転時、第１電磁弁３０と第２電磁弁４２は閉制御されており、上述したように圧縮機６の吐出口から吐出された冷媒は、冷媒配管１８を通って四方弁８から室内熱交換器１６に至る。室内熱交換器１６で室内空気と熱交換して凝縮した冷媒は、室内熱交換器１６を出て、冷媒配管２０を通り膨張弁１２に至り、膨張弁１２で減圧した冷媒は、冷媒配管２２を通って室外熱交換器１４に至る。室外熱交換器１４で室外空気と熱交換して蒸発した冷媒は、冷媒配管２４を通って四方弁８から圧縮機６の吸入口へと戻る。 During the normal heating operation, the first electromagnetic valve 30 and the second electromagnetic valve 42 are controlled to be closed, and the refrigerant discharged from the discharge port of the compressor 6 as described above passes through the refrigerant pipe 18 from the four-way valve 8. It reaches the indoor heat exchanger 16. The refrigerant condensed by exchanging heat with the indoor air in the indoor heat exchanger 16 exits the indoor heat exchanger 16 and reaches the expansion valve 12 through the refrigerant pipe 20. The refrigerant decompressed by the expansion valve 12 is refrigerant pipe 22. Through the outdoor heat exchanger 14. The refrigerant evaporated by exchanging heat with outdoor air in the outdoor heat exchanger 14 returns from the four-way valve 8 to the suction port of the compressor 6 through the refrigerant pipe 24.
また、圧縮機６で発生した熱は、圧縮機６の外壁から蓄熱槽３２の外壁を介して蓄熱槽３２の内部に収容された蓄熱材３６に蓄積される。 Further, the heat generated in the compressor 6 is accumulated in the heat storage material 36 housed in the heat storage tank 32 from the outer wall of the compressor 6 through the outer wall of the heat storage tank 32.
次に、図１に示される空気調和機の除霜・暖房時の動作及び冷媒の流れを示す模式的に示す図３を参照しながら除霜・暖房時の動作を説明する。図中、実線矢印は暖房に供する冷媒の流れを示しており、破線矢印は除霜に供する冷媒の流れを示している。 Next, the operation during defrosting / heating will be described with reference to FIG. 3 schematically showing the operation of the air conditioner shown in FIG. 1 during defrosting / heating and the flow of refrigerant. In the figure, the solid line arrows indicate the flow of the refrigerant used for heating, and the broken line arrows indicate the flow of the refrigerant used for defrosting.
上述した通常暖房運転中に室外熱交換器１４に着霜し、着霜した霜が成長すると、室外熱交換器１４の通風抵抗が増加して風量が減少し、室外熱交換器１４内の蒸発温度が低下する。本発明に係る空気調和機には、図３に示されるように、室外熱交換器１４の配管温度を検出する温度センサ４４が設けられており、非着霜時に比べて、蒸発温度が低下したことを温度センサ４４で検出すると、制御装置から通常暖房運転から除霜・暖房運転への指示が出力される。 When the outdoor heat exchanger 14 is frosted during the above-described normal heating operation and the frosted frost grows, the ventilation resistance of the outdoor heat exchanger 14 increases and the air flow decreases, and the evaporation in the outdoor heat exchanger 14 increases. The temperature drops. As shown in FIG. 3, the air conditioner according to the present invention is provided with a temperature sensor 44 that detects the piping temperature of the outdoor heat exchanger 14, and the evaporation temperature is lower than that during non-frosting. When this is detected by the temperature sensor 44, an instruction from the normal heating operation to the defrosting / heating operation is output from the control device.
通常暖房運転から除霜・暖房運転に移行すると、第１電磁弁３０と第２電磁弁４２は開制御され、上述した通常暖房運転時の冷媒の流れに加え、圧縮機６の吐出口から出た気相冷媒の一部は冷媒配管２８と第１電磁弁３０を通り、冷媒配管２２を通る冷媒に合流して、室外熱交換器１４を加熱し、凝縮して液相化した後、冷媒配管２４を通って四方弁８とアキュームレータ２６を介して圧縮機６の吸入口へと戻る。 When the normal heating operation is shifted to the defrosting / heating operation, the first electromagnetic valve 30 and the second electromagnetic valve 42 are controlled to open, and in addition to the refrigerant flow during the normal heating operation described above, the first solenoid valve 30 and the second electromagnetic valve 42 are discharged from the discharge port of the compressor 6. A part of the vapor phase refrigerant passes through the refrigerant pipe 28 and the first solenoid valve 30 and merges with the refrigerant passing through the refrigerant pipe 22, heats the outdoor heat exchanger 14, condenses into a liquid phase, It returns to the suction port of the compressor 6 through the pipe 24 via the four-way valve 8 and the accumulator 26.
また、冷媒配管２０における室内熱交換器１６とストレーナ１０の間で分流した液相冷媒の一部は、冷媒配管３８と第２電磁弁４２を経て、蓄熱熱交換器３４で蓄熱材３６から吸熱し蒸発、気相化して、冷媒配管４０を通って冷媒配管２４を通る冷媒に合流し、アキュームレータ２６から圧縮機６の吸入口へと戻る。 In addition, a part of the liquid-phase refrigerant that is divided between the indoor heat exchanger 16 and the strainer 10 in the refrigerant pipe 20 passes through the refrigerant pipe 38 and the second electromagnetic valve 42, and absorbs heat from the heat storage material 36 in the heat storage heat exchanger 34. Then, it evaporates and vaporizes, merges with the refrigerant passing through the refrigerant pipe 24 through the refrigerant pipe 40, and returns from the accumulator 26 to the suction port of the compressor 6.
アキュームレータ２６に戻る冷媒には、室外熱交換器１４から戻ってくる液相冷媒が含まれているが、これに蓄熱熱交換器３４から戻ってくる高温の気相冷媒を混合することで、液相冷媒の蒸発が促され、アキュームレータ２６を通過して液相冷媒が圧縮機６に戻ることがなくなり、圧縮機６の信頼性の向上を図ることができる。 The refrigerant returning to the accumulator 26 includes the liquid phase refrigerant returning from the outdoor heat exchanger 14. By mixing this with the high-temperature gas phase refrigerant returning from the heat storage heat exchanger 34, The evaporation of the phase refrigerant is promoted, and the liquid phase refrigerant does not return to the compressor 6 through the accumulator 26, so that the reliability of the compressor 6 can be improved.
除霜・暖房開始時に霜の付着により氷点下となった室外熱交換器１４の温度は、圧縮機６の吐出口から出た気相冷媒によって加熱されて、零度付近で霜が融解し、霜の融解が終わると、室外熱交換器１４の温度は再び上昇し始める。この室外熱交換器１４の温度上昇を温度センサ４４で検出すると、除霜が完了したと判断し、制御装置から除霜・暖房運転から通常暖房運転への指示が出力される。 The temperature of the outdoor heat exchanger 14 that has become below freezing due to the attachment of frost at the start of defrosting and heating is heated by the gas-phase refrigerant discharged from the discharge port of the compressor 6, and the frost is melted near zero degrees. When melting is finished, the temperature of the outdoor heat exchanger 14 begins to rise again. When the temperature sensor 44 detects the temperature rise of the outdoor heat exchanger 14, it is determined that the defrosting has been completed, and the control device outputs an instruction from the defrosting / heating operation to the normal heating operation.
以上のような構成の空気調和機において、圧縮機６へ蓄熱槽３２を組み付ける構成について、以下、図面を参照しながら説明する。 In the air conditioner having the above-described configuration, a configuration in which the heat storage tank 32 is assembled to the compressor 6 will be described below with reference to the drawings.
図４および図５は、圧縮機６へ蓄熱槽３２を組み付けた状態の斜視図および正面図である。なお、蓄熱槽３２の内部には液体状の蓄熱材３６が充填され、蓄熱槽３２には内部に冷媒が流通する蓄熱熱交換器３４が収容されている。 4 and 5 are a perspective view and a front view of the compressor 6 with the heat storage tank 32 assembled thereto. The heat storage tank 32 is filled with a liquid heat storage material 36, and the heat storage tank 32 houses a heat storage heat exchanger 34 in which a refrigerant flows.
図４および図５に示すように、蓄熱槽３２は、上方が開口した蓄熱槽本体４６と、蓄熱槽本体４６の上方開口を閉塞する蓋体４８とを備える。また、蓄熱槽３２は樹脂で構成されている。蓄熱槽３２の構成の詳細については後述するが、本実施の形態の蓄熱槽３２は、上側の空間と下側の空間とで大きさを異ならせている。 As shown in FIG. 4 and FIG. 5, the heat storage tank 32 includes a heat storage tank body 46 whose upper side is opened and a lid body 48 that closes the upper opening of the heat storage tank body 46. The heat storage tank 32 is made of resin. Although details of the configuration of the heat storage tank 32 will be described later, the size of the heat storage tank 32 of the present embodiment is different between the upper space and the lower space.
蓄熱槽３２の内部に入っている蓄熱材３６は液体状であるため、蓄熱材３６は上側に行くほど高温の液体が溜まる。そこで、本実施の形態では図４に示すように、蓄熱槽３２の上側空間を大きくし、最下部付近の下側空間を小さくすることで、高温の蓄熱材３６を多く確保することができる構成としている。もし蓄熱槽３２を金属部材で構成した場合、図４に示すような複雑な蓄熱槽３２の形状を作り出すことは難しいのに対して、樹脂材料で蓄熱槽３２を構成することで、簡単に複雑な形状の蓄熱槽３２を作り出すことができる。 Since the heat storage material 36 contained in the heat storage tank 32 is in a liquid state, the higher the temperature of the heat storage material 36 is, the higher the liquid is stored. Therefore, in the present embodiment, as shown in FIG. 4, a configuration in which a large amount of the high-temperature heat storage material 36 can be secured by increasing the upper space of the heat storage tank 32 and reducing the lower space near the lowermost portion. It is said. If the heat storage tank 32 is made of a metal member, it is difficult to create a complicated shape of the heat storage tank 32 as shown in FIG. A heat storage tank 32 having a simple shape can be created.
さらに、蓄熱槽３２の材質として樹脂材料を用いることで、コストを削減できるだけで
はなく、軽量化も実現することができる。特に、重量物である室外機に搭載するため、蓄熱槽３２をより軽量化して、室外機の重量増加を極力抑えることができ、設置性・作業性の向上を実現することができる。
Furthermore, by using a resin material as the material of the heat storage tank 32, not only cost can be reduced, but also weight reduction can be realized. In particular, since it is mounted on an outdoor unit that is a heavy object, the heat storage tank 32 can be further reduced in weight, and an increase in the weight of the outdoor unit can be suppressed as much as possible, thereby improving installation and workability.
また、図６は、蓄熱槽３２が組み付けられた圧縮機６を上方から見た上面図である。図６に示すように、略Ｕ字形状に構成された蓄熱槽本体４６の一端４６ａと他端４６ｂとの間の部分によって、圧縮機６の外周面６ａをその周方向に部分的に覆うように構成されている。 FIG. 6 is a top view of the compressor 6 with the heat storage tank 32 assembled as viewed from above. As shown in FIG. 6, the outer peripheral surface 6 a of the compressor 6 is partially covered in the circumferential direction by a portion between one end 46 a and the other end 46 b of the heat storage tank main body 46 configured in a substantially U shape. It is configured.
具体的には、略Ｕ字形状に構成された蓄熱槽３２の内周側に圧縮機６を配置し、図６に示すようにＡから圧縮機６の外周面に沿ってＢに至るまで、蓄熱槽３２の内周と圧縮機６の外周とが接している。またＡからＢに至るまで約１８０度にわたって圧縮機６と蓄熱槽３２とが接触する構成となる。以下、蓄熱槽３２と圧縮機６との具体的な接触構造について述べる。 Specifically, the compressor 6 is disposed on the inner peripheral side of the heat storage tank 32 configured in a substantially U shape, and from A to B along the outer peripheral surface of the compressor 6 as shown in FIG. The inner periphery of the heat storage tank 32 and the outer periphery of the compressor 6 are in contact. Further, the compressor 6 and the heat storage tank 32 are in contact with each other over about 180 degrees from A to B. Hereinafter, a specific contact structure between the heat storage tank 32 and the compressor 6 will be described.
圧縮機６とアキュームレータ２６とは、蓄熱槽３２に固定される前から、図７に示すように一体化されており、バンド６ｂで固定されている。また、圧縮機６の外周面６ａには、伝熱シート５０が密着されている。圧縮機６は、この伝熱シート５０を介して蓄熱槽本体４６の圧縮機側の外部表面４６ｃと接触する（図８参照）。 Before being fixed to the heat storage tank 32, the compressor 6 and the accumulator 26 are integrated as shown in FIG. 7, and are fixed by the band 6b. A heat transfer sheet 50 is in close contact with the outer peripheral surface 6 a of the compressor 6. The compressor 6 contacts the external surface 46c on the compressor side of the heat storage tank body 46 through the heat transfer sheet 50 (see FIG. 8).
伝熱シート５０は、自己吸着性を備えた弾性のシートであって、複数の貫通孔５０ａが形成されている。複数の貫通孔５０ａは、伝熱シート５０と圧縮機６の外周面６ａとの間の空気を外に抜くために形成されている。複数の貫通孔５０ａを介して空気が外に抜けることにより、伝熱シート５０と圧縮機６の外周面６ａとの密着面積が大きくなり、伝熱シート５０と圧縮機６との間の熱伝達性が向上する。 The heat transfer sheet 50 is an elastic sheet having self-adsorptive properties, and has a plurality of through holes 50a. The plurality of through-holes 50a are formed for extracting air between the heat transfer sheet 50 and the outer peripheral surface 6a of the compressor 6 to the outside. When air is released to the outside through the plurality of through holes 50 a, the contact area between the heat transfer sheet 50 and the outer peripheral surface 6 a of the compressor 6 is increased, and heat transfer between the heat transfer sheet 50 and the compressor 6 is performed. Improves.
なお、貫通孔５０ａ同士は所定間隔（例えば、１０ｍｍピッチ）で離れて設けられており、圧縮機６と伝熱シート５０との間に気泡が生じたとしても、所定間隔（本実施の形態では、１０ｍｍのピッチ）に制限されて大きな気泡ができることはない。また、所定間隔は本実施の形態のように１０ｍｍピッチに限定されることは無く、例えば、１ｍｍ〜３０ｍｍ程度のピッチであっても、気泡の大きさが制限されるため、大きな気泡の介在を防ぐことができる。 Note that the through holes 50a are spaced apart from each other at a predetermined interval (for example, 10 mm pitch), and even if bubbles are generated between the compressor 6 and the heat transfer sheet 50, the predetermined interval (in this embodiment) It is not limited to a pitch of 10 mm, and no large bubbles are formed. Further, the predetermined interval is not limited to a 10 mm pitch as in the present embodiment. For example, even if the pitch is about 1 mm to 30 mm, the size of the bubbles is limited. Can be prevented.
一方、図８に示すように、伝熱シート５０と接触する蓄熱槽本体４６の圧縮機側の外部表面４６ｃの部分には、複数の溝４６ｄが形成されている。複数の溝４６ｄは、伝熱シート５０と蓄熱槽本体４６との間の空気を外に抜くために形成されている。また、複数の溝４６ｄは、伝熱シート５０と圧縮機６との間から貫通孔５０ａを介して伝熱シート５０と蓄熱槽３２との間に移動した空気も外に抜く役割をする。なお、複数の溝４６ｄは、伝熱シート５０が蓄熱槽本体４６に密着したときに空気を外に抜くことができるように、伝熱シート５０によって完全に覆われないような長さにされている。また、複数の溝４６ｄは、弾性の伝熱シート５０で埋まらない幅や深さを備え、例えば、幅が１ｍｍに決定され、深さが０．５ｍｍに決定されている。 On the other hand, as shown in FIG. 8, a plurality of grooves 46 d are formed in the portion of the external surface 46 c on the compressor side of the heat storage tank body 46 that contacts the heat transfer sheet 50. The plurality of grooves 46d are formed to draw air between the heat transfer sheet 50 and the heat storage tank body 46 to the outside. Further, the plurality of grooves 46d serve to draw out air that has moved between the heat transfer sheet 50 and the compressor 6 via the through hole 50a between the heat transfer sheet 50 and the heat storage tank 32. The plurality of grooves 46d have such a length that they are not completely covered by the heat transfer sheet 50 so that the air can be extracted outside when the heat transfer sheet 50 comes into close contact with the heat storage tank body 46. Yes. Further, the plurality of grooves 46d have a width and a depth that are not filled with the elastic heat transfer sheet 50. For example, the width is determined to be 1 mm and the depth is determined to be 0.5 mm.
なお、溝４６ｄ同士は所定間隔（例えば、１０ｍｍピッチ）で離れて設けられており、伝熱シート５０と蓄熱槽本体４６との間に発生する気泡の大きさを制限している。また、貫通孔５０ａと同様に、１０ｍｍのピッチに限定されることはなく、例えば、１ｍｍ〜３０ｍｍであっても、ピッチ間隔に気泡の大きさが制限されるので、大きな気泡の介在を防ぐという効果を奏する。 The grooves 46d are spaced apart from each other at a predetermined interval (for example, a pitch of 10 mm), and limit the size of bubbles generated between the heat transfer sheet 50 and the heat storage tank body 46. Further, like the through holes 50a, the pitch is not limited to 10 mm. For example, even if the pitch is 1 mm to 30 mm, the size of the bubbles is limited to the pitch interval, so that the inclusion of large bubbles is prevented. There is an effect.
このように、伝熱シート５０に所定間隔で貫通孔５０ａを設け、さらに、蓄熱槽３２の
内周面に所定間隔で溝４６ｄを設けることによって、圧縮機６と蓄熱槽３２とを密着させる時に発生してしまう気泡を外に逃してやることができ、圧縮機６からの廃熱を効果的に蓄熱槽３２へ伝えることができる。
In this way, when the through holes 50a are provided in the heat transfer sheet 50 at predetermined intervals, and the grooves 46d are provided at predetermined intervals on the inner peripheral surface of the heat storage tank 32, the compressor 6 and the heat storage tank 32 are brought into close contact with each other. The generated bubbles can be released to the outside, and the waste heat from the compressor 6 can be effectively transmitted to the heat storage tank 32.
なお、本実施の形態では、貫通孔５０ａを設ける所定間隔と、溝４６ｄを設ける所定間隔とを同じにしているが、これに限定されることはなく、異なる所定間隔でも問題はない。 In the present embodiment, the predetermined interval at which the through-hole 50a is provided and the predetermined interval at which the groove 46d is provided are the same, but the present invention is not limited to this, and there is no problem with different predetermined intervals.
次に、蓄熱槽３２と圧縮機６とを固定する構成について説明する。図７に示す圧縮機６とアキュームレータ２６は、図４や図５に示すように、２本のバンド５２、５４によって蓄熱槽３２に固定される。 Next, the structure which fixes the heat storage tank 32 and the compressor 6 is demonstrated. The compressor 6 and the accumulator 26 shown in FIG. 7 are fixed to the heat storage tank 32 by two bands 52 and 54 as shown in FIGS.
図６に示すように、蓄熱槽本体４６の端部は、圧縮機６と接触するＡ点およびＢ点よりもさらにアキュームレータ２６側に延伸している。これは、出来るだけ蓄熱材の量を多くしたいために、圧縮機６と直接接触しないが、高温の蓄熱材３６の容積を増やして、除霜運転をしながら暖房運転ができる時間を長くしている。 As shown in FIG. 6, the end of the heat storage tank main body 46 extends further to the accumulator 26 side than the points A and B in contact with the compressor 6. In order to increase the amount of the heat storage material as much as possible, it is not in direct contact with the compressor 6, but the volume of the high-temperature heat storage material 36 is increased to increase the time during which the heating operation can be performed while performing the defrosting operation. Yes.
また、本実施の形態の蓄熱槽３２は圧縮機６のみの周囲を覆うように構成されている。これはアキュームレータ２６を含めて蓄熱槽３２で覆ってしまうと、アキュームレータ２６の温度は圧縮機６に比べて低いので、蓄熱槽３２の温度を下げてしまい、逆効果となってしまう。よって効果的に圧縮機６の廃熱を蓄熱材３６に蓄えようとする場合は、蓄熱槽３２を圧縮機６のみの周囲を覆う構成にする方がよい。 Moreover, the heat storage tank 32 of this Embodiment is comprised so that the circumference | surroundings of the compressor 6 only may be covered. If this is covered with the heat storage tank 32 including the accumulator 26, the temperature of the accumulator 26 is lower than that of the compressor 6. Therefore, when it is going to store the waste heat of the compressor 6 in the heat storage material 36 effectively, it is better to make the heat storage tank 32 cover the periphery of the compressor 6 alone.
ところが、このような蓄熱槽３２と圧縮機６とをバンドで固定しようとすると、ある一定のテンションが必要となってくる。そのため、上側のバンド５２は蓄熱槽３２とアキュームレータ２６とを固定することによって、バンド５２の締め付け力、ひいては蓄熱槽３２と圧縮機６との密着性を高めている。 However, when trying to fix the heat storage tank 32 and the compressor 6 with a band, a certain tension is required. For this reason, the upper band 52 fixes the heat storage tank 32 and the accumulator 26, thereby enhancing the tightening force of the band 52 and consequently the adhesion between the heat storage tank 32 and the compressor 6.
もし、蓄熱槽３２と圧縮機６とをバンドで固定した場合には、蓄熱槽３２の両端部からバンド５２が圧縮機に接するポイントまでの距離が短く、テンションが弱い。そのため、本実施の形態では、蓄熱槽３２とアキュームレータ２６とをバンド５２で固定しており、その結果、蓄熱槽３２の両端部からバンド５２がアキュームレータ２６に接するポイントまでの距離を長く取ることができ、テンションを強く保つことができる。 If the heat storage tank 32 and the compressor 6 are fixed with a band, the distance from both ends of the heat storage tank 32 to the point where the band 52 contacts the compressor is short, and the tension is weak. Therefore, in this Embodiment, the heat storage tank 32 and the accumulator 26 are being fixed with the band 52, As a result, the distance from the both ends of the heat storage tank 32 to the point which the band 52 touches the accumulator 26 can be taken long. Can keep the tension strong.
一方、下側のバンド５４で固定する場所は、アキュームレータ２６が無い場所となるため、蓄熱槽３２と圧縮機６とをバンド５４で固定する必要が出てくる。そのため、蓄熱槽３２の最下部付近の一部を、圧縮機６の周方向に切り欠いた切り欠き部４６ｇを設け、蓄熱槽３２と圧縮機６とをバンド５４で固定する際のテンションを確保するようにしている。その結果、蓄熱槽３２の両端部からバンド５４が圧縮機６に接するポイントまでの距離を長く取ることができ、テンションを強く保つことができる。 On the other hand, since the place where the lower band 54 is fixed is a place where the accumulator 26 is not present, it is necessary to fix the heat storage tank 32 and the compressor 6 with the band 54. Therefore, a notch 46g is formed by cutting out a part near the lowermost part of the heat storage tank 32 in the circumferential direction of the compressor 6 to secure tension when the heat storage tank 32 and the compressor 6 are fixed by the band 54. Like to do. As a result, the distance from the both ends of the heat storage tank 32 to the point where the band 54 contacts the compressor 6 can be increased, and the tension can be kept strong.
第１のバンドであるバンド５２は、アキュームレータ２６と蓄熱槽本体４６とを固定する。具体的には、蓄熱槽本体４６の一端４６ａ、他端４６ｂそれぞれにはバンド５２が通過する孔を備えるバンド通し部４６ｅが設けられており、バンド５２は、２つのバンド通し部４６ｅを通過した状態でアキュームレータ２６に巻回される。 The band 52 which is the first band fixes the accumulator 26 and the heat storage tank main body 46. Specifically, each of one end 46a and the other end 46b of the heat storage tank main body 46 is provided with a band passing portion 46e having a hole through which the band 52 passes, and the band 52 has passed through the two band passing portions 46e. It is wound around the accumulator 26 in a state.
その結果、２つのバンド通し部４６ｅを通過したアキュームレータ２６と圧縮機６との間を通るバンド５２で後述する突っ張り部材５６を抑える構成となり、またアキュームレータ２６の（圧縮機６とは反対方向の）外周面を通るバンド５２によって、アキュームレータ２６と蓄熱槽３２とを引き付ける構成となり、ひいては圧縮機６と蓄熱槽３２との密
着性を高めることができる。
As a result, the band 52 passing between the accumulator 26 and the compressor 6 that has passed through the two band passing portions 46e is configured to suppress a tension member 56, which will be described later, and the accumulator 26 (in the direction opposite to the compressor 6). The band 52 that passes through the outer peripheral surface attracts the accumulator 26 and the heat storage tank 32, and as a result, the adhesion between the compressor 6 and the heat storage tank 32 can be enhanced.
第２のバンドであるバンド５４は、圧縮機６と蓄熱槽本体４６とを固定する。具体的には、バンド５４は、図４に示すように蓄熱槽本体４６の反圧縮機側の外部表面４６ｆに沿って巻回され、図５に示すように圧縮機６の外周面６ａに沿って巻回される。 A band 54 that is a second band fixes the compressor 6 and the heat storage tank main body 46. Specifically, the band 54 is wound along the outer surface 46f on the anti-compressor side of the heat storage tank body 46 as shown in FIG. 4, and along the outer peripheral surface 6a of the compressor 6 as shown in FIG. Is wound.
また、蓄熱槽３２の最下部付近の両端部に切り欠き部４６ｇ（蓄熱槽３２の上側の両端部よりも周方向に奥側へ移動させた部位）を設けることによって、蓄熱槽３２と圧縮機６との密着性を高めることができる。 Moreover, the heat storage tank 32 and the compressor are provided by providing notches 46g (parts moved to the back side in the circumferential direction from both upper ends of the heat storage tank 32) at both ends near the lowermost part of the heat storage tank 32. 6 can be improved.
そして、バンド５２を締めることによってアキュームレータ２６を介して圧縮機６と蓄熱槽３２とが伝熱シート５０を介して密着する。それに加えて、バンド５４を締めることによって圧縮機６と蓄熱槽３２とが伝熱シート５０を介して密着する。その結果として、圧縮機６と伝熱シート５０との間の空気と、伝熱シート５０と蓄熱槽３２との間の空気が外に抜ける。 Then, by tightening the band 52, the compressor 6 and the heat storage tank 32 are in close contact via the heat transfer sheet 50 via the accumulator 26. In addition, the compressor 6 and the heat storage tank 32 are in close contact with each other via the heat transfer sheet 50 by tightening the band 54. As a result, the air between the compressor 6 and the heat transfer sheet 50 and the air between the heat transfer sheet 50 and the heat storage tank 32 escape to the outside.
なお、バンド５２、５４は、クリープ特性を備える、例えばナイロンなどの樹脂から作製されたバンドが好ましい。なお、本明細書で言う「クリープ特性」は、具体的には、締め付け直後から所定の期間はバンドの締め付け力が大きく、時間の経過とともにその締め付け力が低下し、最終的には圧縮機６と蓄熱槽３２との固定を維持する締め付け力になるような特性を言う。 Bands 52 and 54 are preferably bands made of a resin such as nylon having creep characteristics. Note that the “creep characteristic” in the present specification specifically means that the band tightening force is large during a predetermined period immediately after the tightening, and the tightening force decreases with the passage of time. And the characteristic which becomes the clamping force which maintains fixation with the heat storage tank 32.
例えば、バンド５２、５４は、締め付け直後は約２５ｋｇ（キログラム）の締め付け力を発揮することにより圧縮機６と伝熱シート５０との間の空気および伝熱シート５０と蓄熱槽３２との間の空気とを外に抜くことができ、時間の経過とともに締め付け力が低下して最終的には圧縮機６と蓄熱槽３２との固定を維持する約５ｋｇの締め付け力に安定するような樹脂から作製されたバンドが好ましい。 For example, the bands 52 and 54 exhibit a tightening force of about 25 kg (kilograms) immediately after tightening, thereby causing air between the compressor 6 and the heat transfer sheet 50 and between the heat transfer sheet 50 and the heat storage tank 32. Produced from a resin that can withdraw air and is stable with a clamping force of about 5 kg that eventually keeps the compressor 6 and the heat storage tank 32 fixed, with the clamping force decreasing over time. Band is preferred.
これは、製造過程において、圧縮機６と蓄熱槽３２とを密着させようと思うと、ある一定の締め付け力が必要である（上述では、約２５ｋｇとしているが、これに限定されるものではない）。ところが、この締め付け力のまま維持されると、蓄熱槽３２に長時間大きな締め付け力が作用してしまうことになる。そのため、時間が経つにつれて、締め付け力が弱くなり、最終的には圧縮機６と蓄熱槽３２との密着が維持できる程度の力（上述では、約５ｋｇとしているが、これに限定されるものではない）となるようなクリープ特性を持った材質の部材を、バンドの材料として採用することが好ましく、蓄熱槽３２の耐久性を損なうことがない。 This is because a certain tightening force is required when the compressor 6 and the heat storage tank 32 are brought into close contact with each other in the manufacturing process (in the above description, although it is about 25 kg, it is not limited to this). ). However, if this tightening force is maintained, a large tightening force will act on the heat storage tank 32 for a long time. Therefore, as the time passes, the tightening force becomes weaker, and finally the force that can maintain the close contact between the compressor 6 and the heat storage tank 32 (in the above, about 5 kg, but is not limited thereto) It is preferable to employ a material having a creep characteristic such that the durability of the heat storage tank 32 is not impaired.
なお、参考までに説明すると、クリープ特性を備えないバンド、例えばステンレスから作製されたバンドの場合、以下のような問題が考えられる。 For reference, a band that does not have creep characteristics, such as a band made of stainless steel, may have the following problems.
ステンレスから作製されたバンドの場合、圧縮機６と伝熱シート５０との間の空気と、伝熱シート５０と蓄熱槽３２との間の空気とが外に抜けるような大きい締め付け力で締め付けると、その締め付け力はそのまま維持される。大きい締め付け力が維持されると、蓄熱槽３２が蓄熱して高温状態になったときに、すなわち、熱によって蓄熱槽本体４６が軟化した場合（特に蓄熱槽本体４６が樹脂から作製されている場合）、蓄熱槽本体４６が圧縮機６側に向かって変形する可能性がある。そして、圧縮機６と接触する蓄熱槽本体４６の部分に応力が集中し、蓄熱槽本体４６が破損する可能性がある。または、蓋体４８が蓄熱槽本体４６から外れる可能性がある。 In the case of a band made of stainless steel, when tightened with such a large tightening force that the air between the compressor 6 and the heat transfer sheet 50 and the air between the heat transfer sheet 50 and the heat storage tank 32 come out. The tightening force is maintained as it is. When a large tightening force is maintained, when the heat storage tank 32 stores heat and becomes a high temperature state, that is, when the heat storage tank body 46 is softened by heat (particularly when the heat storage tank body 46 is made of resin). ), The heat storage tank body 46 may be deformed toward the compressor 6 side. And stress concentrates on the part of the thermal storage tank main body 46 which contacts the compressor 6, and the thermal storage tank main body 46 may be damaged. Alternatively, the lid body 48 may come off from the heat storage tank main body 46.
これとは反対に、小さい締め付け力で締めると、圧縮機６と伝熱シート５０との間の空
気と、伝熱シート５０と蓄熱槽３２との間の空気とが十分に外に抜けず、圧縮機６から伝熱シート５０を介する蓄熱槽３２への熱伝達性が低下する。したがって、バンド５２、５４は、クリープ特性を備えるのが好ましい。
On the contrary, when tightening with a small tightening force, the air between the compressor 6 and the heat transfer sheet 50 and the air between the heat transfer sheet 50 and the heat storage tank 32 do not escape sufficiently outside, The heat transferability from the compressor 6 to the heat storage tank 32 via the heat transfer sheet 50 is reduced. Accordingly, the bands 52 and 54 preferably have creep characteristics.
ところが、バンド５２およびバンド５４で固定された蓄熱槽３２は、バンド５２およびバンド５４に掛かるテンションにより、蓄熱槽３２の一端４６ａと他端４６ｂとが近くなる方向に力が掛かっている状態となっている。さらに、樹脂材料で蓄熱槽３２を構成しているため、蓄熱槽３２が高温になるにつれて膨張し、より一端４６ａと他端４６ｂとが近くなる方向になってしまい、その結果、図４に示したＡ点およびＢ点を中心として応力集中が発生してしまう。 However, the heat storage tank 32 fixed by the band 52 and the band 54 is in a state where a force is applied in a direction in which the one end 46 a and the other end 46 b of the heat storage tank 32 are close to each other due to the tension applied to the band 52 and the band 54. ing. Furthermore, since the heat storage tank 32 is made of a resin material, the heat storage tank 32 expands as the temperature rises, and the one end 46a and the other end 46b become closer to each other. As a result, as shown in FIG. Stress concentration occurs around the points A and B.
そこで、本実施の形態では、蓄熱槽３２の圧縮機６側への変形を抑制するために、突っ張り部材５６が、蓄熱槽３２に設けられている。圧縮機６とアキュームレータ２６とを取り外した状態の図８に示すように、突っ張り部材５６は、蓄熱槽本体４６の一端４６ａ、他端４６ｂそれぞれのバンド通し部４６ｅの間に介在するように配置される。 Therefore, in the present embodiment, the tension member 56 is provided in the heat storage tank 32 in order to suppress deformation of the heat storage tank 32 toward the compressor 6 side. As shown in FIG. 8 with the compressor 6 and the accumulator 26 removed, the tension member 56 is disposed so as to be interposed between the band passing portions 46e of the one end 46a and the other end 46b of the heat storage tank main body 46. The
具体的には、図９に示すように、突っ張り部材５６は、金属性のプレート部材であって、その両端に蓄熱槽本体４６のバンド通し部４６ｅと係合する切り欠き部５６ａを備える。また、突っ張り部材５６は、２つのバンド通し部４６ｅが対向する方向に関して該バンド通し部４６ｅと面接触する接触面５６ｂを備える。 Specifically, as shown in FIG. 9, the tension member 56 is a metallic plate member, and includes notches 56 a that engage with the band-passing portions 46 e of the heat storage tank main body 46 at both ends thereof. Further, the tension member 56 includes a contact surface 56b that is in surface contact with the band passing portion 46e in the direction in which the two band passing portions 46e face each other.
このような突っ張り部材５６は、蓄熱槽本体４６が圧縮機６側に変形しようとすると、すなわち２つのバンド通し部４６ｅが接近しようとすると、接触面５６ｂによって２つのバンド通し部４６ｅの接近を抑制することができる。この突っ張り部材５６により、２つのバンド通し部４６ｅを介して蓄熱槽本体４６の一端４６ａ、他端４６ｂの接近が抑制され、その結果として蓄熱槽本体４６の圧縮機６側への変形が抑制される。 Such a tension member 56 suppresses the approach of the two band-passing portions 46e by the contact surface 56b when the heat storage tank main body 46 tries to deform toward the compressor 6, that is, when the two band-passing portions 46e try to approach each other. can do. The tension member 56 suppresses the approach of the one end 46a and the other end 46b of the heat storage tank body 46 through the two band-passing portions 46e, and as a result, the deformation of the heat storage tank body 46 toward the compressor 6 is suppressed. The
なお、図４に示すように、突っ張り部材５６は、バンド通し部４６ｅを通過したバンド５２によって蓄熱槽本体４６からの脱落を防止されている。すなわち、２つのバンド通し部４６ｅを通過したバンド５２に対して、突っ張り部材５６は、圧縮機６側に配置されている。 In addition, as shown in FIG. 4, the tension member 56 is prevented from dropping from the heat storage tank main body 46 by the band 52 that has passed through the band passing portion 46e. That is, the tension member 56 is disposed on the compressor 6 side with respect to the band 52 that has passed through the two band passing portions 46e.
特に、蓄熱槽３２が高温になって膨張した時に、突っ張り部材５６がたわむ方向に力が掛かる。そこで、バンド５２の取り付け位置と、突っ張り部材５６の取り付け位置とを高さ方向に同じ位置（重なる位置）に配置することによって、バンド５２で突っ張り部材５６の背面側を抑える構成となり（図６参照）、突っ張り部材５６のたわみも防ぐことができ、ひいては、蓄熱槽３２の変形を防ぎ、応力が集中してしまうことを防ぐ。 In particular, when the heat storage tank 32 becomes hot and expands, a force is applied in the direction in which the tension member 56 bends. Therefore, the band 52 and the mounting position of the tension member 56 are arranged at the same position (overlapping position) in the height direction, thereby suppressing the back side of the tension member 56 with the band 52 (see FIG. 6). ), The deflection of the tension member 56 can also be prevented, and as a result, deformation of the heat storage tank 32 is prevented and stress is prevented from being concentrated.
図１０は、蓄熱槽３２に収容される蓄熱熱交換器３４と蓄熱槽３２の蓋体４８との斜視図である。 FIG. 10 is a perspective view of the heat storage heat exchanger 34 accommodated in the heat storage tank 32 and the lid 48 of the heat storage tank 32.
図１０に示すように、蓄熱熱交換器３４は、例えば銅管等を蛇行状に形成したものであって、両端で蓄熱槽３２の蓋体４８に支持されている。また、蓄熱槽３２内部の蓄熱材の熱量を有効的に使用するため、略Ｕ字形状の蓄熱槽３２に沿って、蓄熱熱交換器３４を蛇行させている。蓄熱熱交換器３４の一端は冷媒配管３８に接続され、他端は冷媒配管４０に接続されている（図１参照）。 As shown in FIG. 10, the heat storage heat exchanger 34 is formed, for example, in a meandering manner such as a copper tube, and is supported by the lid body 48 of the heat storage tank 32 at both ends. Further, in order to effectively use the heat quantity of the heat storage material inside the heat storage tank 32, the heat storage heat exchanger 34 is meandered along the substantially U-shaped heat storage tank 32. One end of the heat storage heat exchanger 34 is connected to the refrigerant pipe 38, and the other end is connected to the refrigerant pipe 40 (see FIG. 1).
次に、蓋体４８への蓄熱熱交換器３４の固定方法について説明する。蓄熱熱交換器３４は、蓄熱材３６に対して耐性を持つ弾性材料から作製された栓体５８を介して蓋体４８に支持されている。図１１に示すように、蓄熱熱交換器３４の両端は、蓋体４８の貫通孔４
８ａに圧入された栓体５８の貫通孔５８ａを通過することにより支持されている。
Next, a method for fixing the heat storage heat exchanger 34 to the lid 48 will be described. The heat storage heat exchanger 34 is supported by the lid body 48 via a plug body 58 made of an elastic material resistant to the heat storage material 36. As shown in FIG. 11, both ends of the heat storage heat exchanger 34 are connected to the through holes 4 of the lid body 48.
It is supported by passing through the through hole 58a of the plug body 58 press-fitted into 8a.
また、図１０に示すように、蓄熱熱交換器３４に、蓄熱槽本体４６に対して蓄熱熱交換器３４を位置決めする位置決め部材６０が取り付けられている。 As shown in FIG. 10, a positioning member 60 that positions the heat storage heat exchanger 34 with respect to the heat storage tank body 46 is attached to the heat storage heat exchanger 34.
位置決め部材６０は、蓄熱材３６に対して耐性を持つ弾性材料から作製された部材であって、蓄熱熱交換器３４の下部（蓄熱槽３２の底側）の中央に位置する管の部分に取り付けられる。具体的には、図１２に示すように、位置決め部材６０は、蓄熱熱交換器３４の下部中央に位置する管の部分が通過する貫通孔６０ａと、貫通孔６０ａ内に蓄熱熱交換器３４の管の部分を配置するための切れ込み部６０ｂとを備える。蓄熱熱交換器３４の下部中央に位置する管の部分は、切れ込み部６０ｂを通過することにより、貫通孔６０ａ内に配置される。 The positioning member 60 is a member made of an elastic material resistant to the heat storage material 36, and is attached to a pipe portion located in the center of the lower part of the heat storage heat exchanger 34 (the bottom side of the heat storage tank 32). It is done. Specifically, as shown in FIG. 12, the positioning member 60 includes a through hole 60a through which a portion of the tube located at the lower center of the heat storage heat exchanger 34 passes, and the heat storage heat exchanger 34 in the through hole 60a. And a notch 60b for disposing a portion of the tube. The portion of the tube located at the lower center of the heat storage heat exchanger 34 is disposed in the through hole 60a by passing through the cut portion 60b.
また、位置決め部材６０は、蓄熱熱交換器３４が蓄熱槽３２内に収容された状態のとき、蓄熱槽本体４６の内部表面に形成された凸状係合部４６ｈ（図８参照）と係合する凹状係合部６０ｃを備える。このような位置決め部材６０により、蓄熱熱交換器３４は、蓄熱槽本体４６に対して位置決めされる。 Further, the positioning member 60 engages with a convex engaging portion 46 h (see FIG. 8) formed on the inner surface of the heat storage tank body 46 when the heat storage heat exchanger 34 is accommodated in the heat storage tank 32. A concave engaging portion 60c is provided. With such a positioning member 60, the heat storage heat exchanger 34 is positioned with respect to the heat storage tank main body 46.
さらに、図１０に示すように、蓄熱熱交換器３４の所定の部分（詳細は後述する）に、蓄熱槽本体４６と蓄熱熱交換器３４との接触を回避する複数の緩衝部材６２が取り付けられている。複数の緩衝部材６２は、位置決め部材６０と同様に、蓄熱材３６に対して耐性を持つ弾性材料から作製された部材であって、位置決め部材６０と同様の方法で蓄熱熱交換器３４に取り付けられる。 Furthermore, as shown in FIG. 10, a plurality of buffer members 62 that avoid contact between the heat storage tank body 46 and the heat storage heat exchanger 34 are attached to a predetermined portion (details will be described later) of the heat storage heat exchanger 34. ing. Like the positioning member 60, the plurality of buffer members 62 are members made of an elastic material resistant to the heat storage material 36 and are attached to the heat storage heat exchanger 34 in the same manner as the positioning member 60. .
これまでに説明した栓体５８、位置決め部材６０、および緩衝部材６２により、蓄熱熱交換器３４と蓄熱槽３２との接触によって起こる騒音発生を抑制している。 The plug 58, the positioning member 60, and the buffer member 62 described so far suppress the generation of noise caused by the contact between the heat storage heat exchanger 34 and the heat storage tank 32.
この騒音発生の原因について具体的に説明する。位置決め部材６０、緩衝部材６２が存在せず、且つ栓体５８の代わりにボルトなどの固定手段によって蓄熱熱交換器３４が蓄熱槽３２の蓋体４８に固定されている場合を考える。この場合、蓄熱熱交換器３４は、ボルトなどの固定手段により、弾性材料から作製された栓体５８に比べて、堅固に蓋体４８に固定される。したがって、蓄熱熱交換器３４は、蓋体４８に固定された部分を固定端として揺動しやすい。 The cause of this noise generation will be specifically described. Consider a case where the positioning member 60 and the buffer member 62 do not exist and the heat storage heat exchanger 34 is fixed to the lid 48 of the heat storage tank 32 by a fixing means such as a bolt instead of the plug body 58. In this case, the heat storage heat exchanger 34 is firmly fixed to the lid 48 by a fixing means such as a bolt as compared with the plug 58 made of an elastic material. Accordingly, the heat storage heat exchanger 34 is likely to swing with the portion fixed to the lid 48 as a fixed end.
そのため、圧縮機６の振動が蓄熱槽３２に伝わると、蓋体４８を介して蓄熱熱交換器３４に振動が伝わる。そして、蓄熱熱交換器３４は揺動し、蓄熱槽本体４６の内部表面と接触して衝突音が騒音として発生する。 Therefore, when the vibration of the compressor 6 is transmitted to the heat storage tank 32, the vibration is transmitted to the heat storage heat exchanger 34 via the lid 48. Then, the heat storage heat exchanger 34 swings and comes into contact with the inner surface of the heat storage tank body 46 to generate a collision sound as noise.
このような騒音発生を抑制するために蓄熱熱交換器３４は、弾性材料から作製された栓体５８を介して蓋体４８に支持されている。すなわち、栓体５８が、蓋体４８から蓄熱熱交換器３４へと伝わる振動を減衰させるダンパーの役割をする。また、位置決め部材６０が蓄熱熱交換器３４の下部を蓄熱槽本体４６に対して位置決めすることにより、蓄熱熱交換器３４の揺動が抑制される。さらに、複数の緩衝部材６２が、蓄熱熱交換器３４と蓄熱槽本体４６との接触を回避する。 In order to suppress such noise generation, the heat storage heat exchanger 34 is supported by the lid body 48 via a plug body 58 made of an elastic material. That is, the plug body 58 functions as a damper that attenuates vibration transmitted from the lid body 48 to the heat storage heat exchanger 34. Further, the positioning member 60 positions the lower part of the heat storage heat exchanger 34 with respect to the heat storage tank main body 46, so that the swing of the heat storage heat exchanger 34 is suppressed. Further, the plurality of buffer members 62 avoid contact between the heat storage heat exchanger 34 and the heat storage tank body 46.
また、図１１に示すように、蓄熱熱交換器３４の冷媒配管は、弾性材料で構成された栓体５８を介して蓋体４８に取り付けられるため、栓体５８の弾性材料で許容された範囲で蓄熱熱交換器３４を動かすことができる。 Further, as shown in FIG. 11, the refrigerant pipe of the heat storage heat exchanger 34 is attached to the lid body 48 via a plug body 58 made of an elastic material, and therefore the range allowed by the elastic material of the plug body 58. The heat storage heat exchanger 34 can be moved.
特に、位置決め部材６０を蓄熱槽本体４６の内部表面側に出っ張っている凸状係合部４
６ｈにはめ込んで蓄熱熱交換器３４の位置決めを行なっているため、蓄熱槽３２を作る製造工程においては、重量物である蓄熱熱交換器３４を蓄熱槽本体４６に入れて、位置決め部材６０を凸状係合部４６ｈにはめ込む必要がある。
In particular, the convex engaging portion 4 that projects the positioning member 60 to the inner surface side of the heat storage tank main body 46.
Since the heat storage heat exchanger 34 is positioned by being fitted into 6h, in the manufacturing process of making the heat storage tank 32, the heat storage heat exchanger 34, which is a heavy object, is placed in the heat storage tank main body 46, and the positioning member 60 is protruded. It is necessary to fit into the shape engaging portion 46h.
しかしながら本実施の形態では、栓体５８があることによって、蓄熱熱交換器３４が蓋体４８に固定されている箇所に柔軟性を持たせるため、蓄熱熱交換器３４を蓄熱槽本体４６に挿入した後、位置決め部材６０を凸状係合部４６ｈへはめ込みやすくなり、蓄熱槽３２を製造しやすくなる。 However, in the present embodiment, since the plug body 58 is provided, the heat storage heat exchanger 34 is inserted into the heat storage tank main body 46 in order to give flexibility to the portion where the heat storage heat exchanger 34 is fixed to the lid body 48. After that, it becomes easy to fit the positioning member 60 into the convex engaging portion 46h, and the heat storage tank 32 can be easily manufactured.
また、蓄熱熱交換器３４は銅管で構成されているため、蓄熱熱交換器３４を蓄熱槽本体４６へ挿入した時に、蓄熱熱交換器３４と蓋体４８とを固定する箇所を中心に、内周側に傾いてしまう。そのため、栓体５８を弾性材料で構成しておくことによって、蓄熱熱交換器３４の傾きを吸収し、蓄熱熱交換器３４と蓋体４８との固定箇所に応力集中が発生しないという特有の効果も有する。 Moreover, since the heat storage heat exchanger 34 is comprised with the copper pipe, when the heat storage heat exchanger 34 is inserted in the heat storage tank main body 46, the location which fixes the heat storage heat exchanger 34 and the cover body 48 is centered, It will tilt to the inner circumference. Therefore, by configuring the plug body 58 with an elastic material, the inclination of the heat storage heat exchanger 34 is absorbed, and a specific effect that stress concentration does not occur in the fixing portion between the heat storage heat exchanger 34 and the lid body 48. Also have.
なお、複数の緩衝部材６２は、栓体５８と位置決め部材６０とを用いることにより蓄熱熱交換器３４の揺動を抑制した上でなお、蓄熱槽本体４６の内部表面と接触する可能性がある蓄熱熱交換器３４の部分に取り付けられている。 The plurality of buffer members 62 may come into contact with the inner surface of the heat storage tank body 46 after suppressing the oscillation of the heat storage heat exchanger 34 by using the plug body 58 and the positioning member 60. A heat storage heat exchanger 34 is attached.
また、栓体５８の外周面には、上側凸部５９ａと下側凸部５９ｂとが設けられており、上側凸部５９ａと下側凸部５９ｂとの間には中間凸部５９ｃが設けられている。そして上側凸部５９ａと下側凸部５９ｂは貫通孔４８ａの内周面に密着してシールする構成となっている。このように上側と下側にそれぞれシール構造を設けることによって、蓄熱熱交換器３４が傾いた時であっても、栓体５８の上下に設けたシール構造によって確実に蓄熱材が外部に漏れることを防ぐ。 Further, an upper convex portion 59a and a lower convex portion 59b are provided on the outer peripheral surface of the plug body 58, and an intermediate convex portion 59c is provided between the upper convex portion 59a and the lower convex portion 59b. ing. And the upper side convex part 59a and the lower side convex part 59b become a structure which closely_contact | adheres to the internal peripheral surface of the through-hole 48a, and seals it. By providing the seal structures on the upper side and the lower side in this way, even when the heat storage heat exchanger 34 is inclined, the heat storage material reliably leaks to the outside by the seal structures provided above and below the plug body 58. prevent.
また、中間凸部５９ｃを設けることによって、輸送時等に蓄熱熱交換器３４の動きが激しくなった時に、中間凸部５９ｃが貫通孔４８ａに当接して蓄熱熱交換器３４の動きを抑制することができる。中間凸部５９ｃの外径は、貫通孔４８ａの内径よりも小さく構成している。このような構成を取ることによって、栓体５８を貫通孔４８ａに挿入するときは、中間凸部５９ｃが貫通孔４８ａの内周面に当たることはないので、栓体５８を挿入しやすい。 Further, by providing the intermediate convex portion 59c, when the movement of the heat storage heat exchanger 34 becomes intense during transportation or the like, the intermediate convex portion 59c abuts on the through hole 48a to suppress the movement of the heat storage heat exchanger 34. be able to. The outer diameter of the intermediate convex portion 59c is configured to be smaller than the inner diameter of the through hole 48a. By adopting such a configuration, when the plug body 58 is inserted into the through hole 48a, the intermediate protrusion 59c does not hit the inner peripheral surface of the through hole 48a, so that the plug body 58 can be easily inserted.
また、蓄熱熱交換器３４には上側と下側から圧力を掛けてビーディング加工を行なうことによって、熱交側凸部３４ａを形成している。そして栓体５８の内周面には熱交側凸部３４ａを嵌合する嵌合部５９ｄを設けている。そして、熱交側凸部３４ａと嵌合部５９ｄとを嵌合させることによって、蓄熱熱交換器３４を栓体５８に固定している。 Further, the heat storage heat exchanger 34 is subjected to beading by applying pressure from the upper side and the lower side, thereby forming a heat exchange side convex portion 34a. A fitting portion 59d for fitting the heat exchange side convex portion 34a is provided on the inner peripheral surface of the plug body 58. The heat storage heat exchanger 34 is fixed to the plug body 58 by fitting the heat exchange side convex portion 34a and the fitting portion 59d.
また、ビーディング加工によって熱交側凸部３４ａの外径にはバラツキ（公差）が発生する。そのため、熱交側凸部３４ａの公差を考慮して、熱交側凸部３４ａの外径よりも嵌合部５９ｄの内径を大きくしている。なお、中間凸部５９ｃは熱交側凸部３４ａと略同一箇所にあることが望ましい。これは蓄熱熱交換器３４が動いた時の影響を中間凸部５９ｃで最小限に抑えることができるからである。 In addition, variation (tolerance) occurs in the outer diameter of the heat exchange side convex portion 34a due to beading. Therefore, the inner diameter of the fitting portion 59d is made larger than the outer diameter of the heat exchange side convex portion 34a in consideration of the tolerance of the heat exchange side convex portion 34a. In addition, it is desirable that the intermediate convex portion 59c is located at substantially the same location as the heat exchange side convex portion 34a. This is because the influence when the heat storage heat exchanger 34 moves can be minimized by the intermediate protrusion 59c.
さらに、熱交側凸部３４ａの高さＨａは、嵌合部５９ｄの内径と熱交側凸部３４ａの外径との隙間Ｈｂと、貫通孔４８ａの内径と中間凸部５９ｃの外径との隙間Ｈｃとの和よりも、大きく形成している。これによって、蓄熱熱交換器３４が栓体５８から確実に抜けない構成となる。 Further, the height Ha of the heat exchange side convex portion 34a is determined by the gap Hb between the inner diameter of the fitting portion 59d and the outer diameter of the heat exchange side convex portion 34a, the inner diameter of the through hole 48a, and the outer diameter of the intermediate convex portion 59c. It is formed larger than the sum of the gap Hc. As a result, the heat storage heat exchanger 34 can be reliably removed from the plug body 58.
このような本実施の形態によれば、蓄熱槽３２（蓄熱槽本体４６）が、一端４６ａと他
端４６ｂとの間の部分によって圧縮機６の外周面６ａをその周方向に覆うように構成される場合、蓄熱槽３２の一端４６ａと他端４６ｂのそれぞれに設けられたバンド通し部４６ｅの間に配置されて一端４６ａと他端４６ｂの接近を抑制する突っ張り部材５６により、蓄熱槽３２の圧縮機６側への変形は抑制される。これにより、蓄熱槽３２の圧縮機６側への変形によって起こりえる蓄熱槽３２の破損を抑制することができる。
According to this embodiment, the heat storage tank 32 (heat storage tank main body 46) is configured to cover the outer peripheral surface 6a of the compressor 6 in the circumferential direction by a portion between the one end 46a and the other end 46b. In the case of the heat storage tank 32, the tension member 56 is disposed between the band-passing portions 46e provided at the one end 46a and the other end 46b of the heat storage tank 32 and suppresses the approach between the one end 46a and the other end 46b. Deformation to the compressor 6 side is suppressed. Thereby, damage to the heat storage tank 32 that may be caused by deformation of the heat storage tank 32 toward the compressor 6 can be suppressed.
また、栓体をゴム等の弾性体によって構成することによって、蓄熱熱交換器３４の傾きを吸収し、蓄熱熱交換器３４と蓋体４８との固定箇所に応力集中が発生しないという特有の効果も有する。 In addition, by configuring the plug body with an elastic body such as rubber, the inclination of the heat storage heat exchanger 34 is absorbed, and a specific effect that stress concentration does not occur at the fixing portion between the heat storage heat exchanger 34 and the lid body 48 is achieved. Also have.
また、本実施の形態においては、図１３に示すように、蓄熱槽３２の蓋体４８に略Ｕ字形状を有する蓄熱槽側結合部６３を設け、一方、室外機２内を仕切り圧縮機室を形成する仕切板６４を設け、その仕切板６４上に仕切板側結合部６５を設ける。 Moreover, in this Embodiment, as shown in FIG. 13, the thermal storage tank side coupling | bond part 63 which has a substantially U shape is provided in the cover body 48 of the thermal storage tank 32, On the other hand, the inside of the outdoor unit 2 is divided and a compressor room A partition plate 64 is provided, and a partition plate side coupling portion 65 is provided on the partition plate 64.
そして、蓄熱槽側結合部６３と仕切板側結合部６５とを支持バンド６６で固定することで、蓄熱槽３２の移動を制限する。但し、支持バンド６６で固定する際には、一定の余裕を設けて固定する必要がある。これは蓄熱槽３２の移動ができない程度に固定してしまうと、逆に蓄熱槽３２を破損させてしまう可能性がある。そのため、蓄熱槽３２に一定の動きを持たせる程度の余裕を設けて、支持バンド６６で固定している。 And the movement of the thermal storage tank 32 is restrict | limited by fixing the thermal storage tank side coupling | bond part 63 and the partition plate side coupling | bond part 65 with the support band 66. FIG. However, when fixing with the support band 66, it is necessary to fix with a certain margin. If this is fixed to such an extent that the heat storage tank 32 cannot be moved, the heat storage tank 32 may be damaged. For this reason, the heat storage tank 32 is fixed with the support band 66 with a margin enough to give a certain movement.
その結果、輸送時などに圧縮機６や蓄熱槽３２の移動を制限することができるので、部品相互の当たりや破損を抑制することができる。 As a result, since the movement of the compressor 6 and the heat storage tank 32 can be restricted during transportation or the like, it is possible to suppress the hitting and breakage between components.
なお、支持バンド６６による固定時の一定の余裕は、余裕が少なすぎると圧縮機６および蓄熱槽３２からの振動を仕切板６４に伝播して異音発生の原因となり、また余裕が多すぎると圧縮機６および蓄熱槽３２の移動を制限できず部品相互の当たりや破損の原因となるため、空気調和機の構成に応じて異なる。 In addition, when the fixed margin by the support band 66 is too small, if the margin is too small, vibrations from the compressor 6 and the heat storage tank 32 are propagated to the partition plate 64 to cause abnormal noise, and if the margin is too large. Since the movement of the compressor 6 and the heat storage tank 32 cannot be restricted and causes contact with each other or damage, it differs depending on the configuration of the air conditioner.
また、図１３に示すように、仕切板側結合部６５の位置を、蓄熱槽側結合部６３の位置よりも上方にしている。このように配置することによって、支持バンド６６によって蓄熱槽３２を抑えることがなく、蓄熱槽３２に動くだけの余裕を持たせることができる。仮に、仕切板側結合部６５の位置を、蓄熱槽側結合部６３の位置よりも下方にした場合、支持バンド６６で蓄熱槽３２を押さえつけてしまうことになり、蓄熱槽３２に動く余裕がなくなってしまい蓄熱槽３２からの振動を仕切板６４に伝播して異音発生の原因となってしまう。 Further, as shown in FIG. 13, the position of the partition plate side coupling portion 65 is set higher than the position of the heat storage tank side coupling portion 63. By arranging in this way, the heat storage tank 32 is not suppressed by the support band 66, and the heat storage tank 32 can be given a margin for movement. Temporarily, when the position of the partition plate side coupling | bond part 65 is made lower than the position of the thermal storage tank side coupling | bond part 63, it will hold down the thermal storage tank 32 with the support band 66, and there is no room for the thermal storage tank 32 to move. The vibration from the heat storage tank 32 is propagated to the partition plate 64 and causes abnormal noise.
また、図１４に示すように、支持バンド６６に突起６６ａを設けて、指定の結合長さで固定される構成とする。つまり突起６６ａがあるために、製造時に全ての機種において作業する人に依存されることなく所定の長さで固定することができるので、製品毎のバラツキをなくし、また個人による製造時のバラツキをなくすことができる。 Further, as shown in FIG. 14, the support band 66 is provided with a protrusion 66 a so as to be fixed with a specified coupling length. In other words, since there is the protrusion 66a, it can be fixed at a predetermined length without depending on the person working in all models at the time of manufacture, so that there is no variation between products, and there is no variation at the time of manufacture by an individual. Can be eliminated.
さらに、図１５に示すように、蓄熱槽３２の蓋体４８に設けた略Ｕ字形状の蓄熱槽側結合部６３の近傍かつ内側に、支持バンド６６を誘導するガイド部６７を有することにより、さらに組立作業性を向上させることができる。 Furthermore, as shown in FIG. 15, by having a guide portion 67 for guiding the support band 66 in the vicinity and inside of the substantially U-shaped heat storage tank side coupling portion 63 provided in the lid 48 of the heat storage tank 32, Furthermore, assembly workability can be improved.
以上、本実施の形態では１つのバンドで固定する構成を用いて説明したが、これに限定されることはなく、複数個所で複数のバンドを用いて固定する構成にしても問題はなく、部品相互の当たりや破損を抑制することができる。 As described above, the present embodiment has been described using the configuration that is fixed with one band. However, the present invention is not limited to this, and there is no problem even if the configuration is fixed using a plurality of bands at a plurality of locations. Mutual contact and damage can be suppressed.
また、本実施の形態では蓄熱槽側結合部６３は蓋体４８に設けたが、蓄熱槽３２の本体
に結合部を設けて構成してもよい。
Moreover, although the heat storage tank side coupling | bond part 63 was provided in the cover body 48 in this Embodiment, you may comprise by providing a coupling | bond part in the main body of the heat storage tank 32. FIG.
本発明は、空気調和機に限らず、圧縮機の外周面をその周方向に覆うような構成の蓄熱槽を使用する冷凍サイクルを採用するものであれば、例えば、ヒートポンプ給湯器などに適用可能である。 The present invention is not limited to an air conditioner, and can be applied to, for example, a heat pump water heater as long as it adopts a refrigeration cycle that uses a heat storage tank configured to cover the outer peripheral surface of the compressor in the circumferential direction. It is.
２ 室外機
４ 室内機
６ 圧縮機
６ａ 外周面
６ｂ バンド
８ 四方弁
１０ ストレーナ
１２ 膨張弁
１４ 室外熱交換器
１６ 室内熱交換器
１８ 冷媒配管
２０ 冷媒配管
２２ 冷媒配管
２４ 冷媒配管
２６ アキュームレータ
２８ 冷媒配管
３０ 第１電磁弁
３２ 蓄熱槽
３４ 蓄熱熱交換器
３６ 蓄熱材
３８ 冷媒配管
４０ 冷媒配管
４２ 第２電磁弁
４４ 温度センサ
４６ 蓄熱槽本体
４６ａ 一端
４６ｂ 他端
４６ｃ 外部表面
４６ｄ 溝
４６ｅ バンド通し部
４６ｆ 外部表面
４６ｈ 凸状係合部
４８ 蓋体
４８ａ 貫通孔
５０ 伝熱シート
５０ａ 貫通孔
５２ 第１のバンド
５４ 第２のバンド
５６ 突っ張り部材
５６ａ 切り欠き部
５６ｂ 接触面
５８ 栓体
５８ａ 貫通孔
６０ 位置決め部材
６０ａ 貫通孔
６０ｂ 切れ込み部
６０ｃ 凹状係合部
６２ 緩衝部材
６３ 蓄熱槽側結合部
６４ 仕切板
６５ 仕切板側結合部
６６ 支持バンド
６６ａ 突起
６７ ガイド部
2 outdoor unit 4 indoor unit 6 compressor 6a outer peripheral surface 6b band 8 four-way valve 10 strainer 12 expansion valve 14 outdoor heat exchanger 16 indoor heat exchanger 18 refrigerant pipe 20 refrigerant pipe 22 refrigerant pipe 24 refrigerant pipe 26 accumulator 28 refrigerant pipe 30 First solenoid valve 32 Thermal storage tank 34 Thermal storage heat exchanger 36 Thermal storage material 38 Refrigerant piping 40 Refrigerant piping 42 Second electromagnetic valve 44 Temperature sensor 46 Thermal storage tank body 46a One end 46b The other end 46c External surface 46d Groove 46e Band through portion 46f External surface 46h Convex engaging portion 48 Lid 48a Through hole 50 Heat transfer sheet 50a Through hole 52 First band 54 Second band 56 Strut member 56a Notch 56b Contact surface 58 Plug body 58a Through hole 60 Positioning member 60a Through Hole 60b Notch 60c Concave engaging part 62 Loose Member 63 heat storage tank-side coupling portion 64 partition plate 65 partitioning plate side coupling portion 66 supporting the band 66a protruding 67 guide portion
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010223762A JP5287817B2 (en) | 2010-10-01 | 2010-10-01 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010223762A JP5287817B2 (en) | 2010-10-01 | 2010-10-01 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012078014A JP2012078014A (en) | 2012-04-19 |
| JP5287817B2 true JP5287817B2 (en) | 2013-09-11 |
Family
ID=46238470
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010223762A Active JP5287817B2 (en) | 2010-10-01 | 2010-10-01 | Air conditioner |
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| JP6286675B2 (en) * | 2015-02-20 | 2018-03-07 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0765782B2 (en) * | 1989-11-17 | 1995-07-19 | 松下電器産業株式会社 | Heat storage tank |
| DE19955762C1 (en) * | 1999-11-19 | 2001-02-01 | Hilti Ag | Sealing gland for domestic supply pipeline or cable fitted through building wall uses sealing sleeve of material which swells upon contact with liquid for preventing ingress of water |
| JP3948298B2 (en) * | 2002-02-12 | 2007-07-25 | 株式会社デンソー | Tubular member mounting structure |
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| JP2012078014A (en) | 2012-04-19 |
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