JPH0416112Y2 - - Google Patents
Info
- Publication number
- JPH0416112Y2 JPH0416112Y2 JP1984075997U JP7599784U JPH0416112Y2 JP H0416112 Y2 JPH0416112 Y2 JP H0416112Y2 JP 1984075997 U JP1984075997 U JP 1984075997U JP 7599784 U JP7599784 U JP 7599784U JP H0416112 Y2 JPH0416112 Y2 JP H0416112Y2
- Authority
- JP
- Japan
- Prior art keywords
- storage tank
- heat storage
- pump
- valve
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 83
- 238000005338 heat storage Methods 0.000 claims description 67
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 description 12
- 238000005057 refrigeration Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Description
【考案の詳細な説明】
〈考案の技術分野〉
本考案はヒートポンプの凝縮器にて蓄熱槽の水
を熱交換して所定温度に加熱し給湯するヒートポ
ンプ式給湯機に関するものである。[Detailed Description of the Invention] <Technical Field of the Invention> The present invention relates to a heat pump water heater that heats water in a heat storage tank to a predetermined temperature by exchanging heat with a heat pump condenser to supply hot water.
〈従来技術〉
従来のこの種のヒートポンプ式給湯機は第４図
に示すように構成するものであり、第４図におい
て、１は室外機２側で、該室外機２は膨張弁３、
蒸発器４、圧縮機５が冷凍サイクルとして配管連
結され、該蒸発器４において室外空気と強制的に
熱交換させるための送風機６が設けられている。<Prior Art> A conventional heat pump type water heater of this type is constructed as shown in FIG. 4. In FIG.
An evaporator 4 and a compressor 5 are connected via piping as a refrigeration cycle, and a blower 6 is provided in the evaporator 4 to forcibly exchange heat with outdoor air.
７は密閉型の蓄熱槽８側で、該蓄熱槽（タン
ク）８は鋼板等で密閉型に形成され、該蓄熱槽８
の外部上には上記室外機２の冷凍サイクルに配管
連結された凝縮器９が装着され、該凝縮器９は上
記室外機２の冷凍サイクルより送られてくる冷媒
を通す冷媒通路１０と上記蓄熱槽８内の水を通す
水通路１１を有する２重管構造になつている。１
２は循環ポンプで、上記蓄熱槽８の下部の水を取
り出し上記凝縮器９の水通路１１に送り込む。１
３は給水口で、上記蓄熱槽８の下部に設けられて
いる。１４は給湯口で上記蓄熱槽８の上部に設け
られている。１５は安全弁で、上記蓄熱槽８の圧
力保護として動作する。１６は自動空気抜弁で、
上記蓄熱槽８内に発生した空気を自動的に放出す
るものである。 7 is a closed type heat storage tank 8 side, the heat storage tank (tank) 8 is formed of a steel plate or the like in a closed type,
A condenser 9 connected via piping to the refrigeration cycle of the outdoor unit 2 is mounted on the outside of the unit 2, and the condenser 9 is connected to a refrigerant passage 10 through which refrigerant sent from the refrigeration cycle of the outdoor unit 2 passes and the heat storage. It has a double pipe structure with a water passage 11 through which water in the tank 8 passes. 1
Reference numeral 2 denotes a circulation pump that takes out water from the lower part of the heat storage tank 8 and sends it to the water passage 11 of the condenser 9. 1
3 is a water supply port, which is provided at the lower part of the heat storage tank 8. A hot water supply port 14 is provided above the heat storage tank 8. Reference numeral 15 denotes a safety valve, which operates as a pressure protector for the heat storage tank 8. 16 is an automatic air vent valve,
The air generated in the heat storage tank 8 is automatically released.
尚、上記構成において、蓄熱槽８は密閉型であ
るために常に該蓄熱槽８の下部より給水圧をかけ
て給湯栓１３を「開」にして該蓄熱槽８内の湯を
給湯するものである。 In the above configuration, since the heat storage tank 8 is a closed type, water supply pressure is always applied from the lower part of the heat storage tank 8, and the hot water tap 13 is opened to supply hot water in the heat storage tank 8. be.
上記のように構成してなるヒートポンプ式給湯
機の動作は、室外機２の蒸発器４で大気中より熱
を集め（蒸発器４内の冷媒は大気中の熱をとり蒸
発気化してガスとなる。）、上記室外機２の圧縮機
５で圧縮されて冷媒が高温高圧のガスになり、蓄
熱槽８の凝縮器９の冷媒通路１０に通され、該冷
媒の凝縮（液化）熱で循環ポンプ１２より送られ
てきた上記凝縮器９の水通路１１の水を加熱して
上記蓄熱槽８の水の熱交換を行ない湯にし、上記
室外機２の膨張弁３で冷媒の圧力をさげ、上記蒸
発器４内で蒸発させ、大気中の熱をとる。 The heat pump water heater configured as described above operates by collecting heat from the atmosphere in the evaporator 4 of the outdoor unit 2 (the refrigerant in the evaporator 4 takes heat from the atmosphere and evaporates it into gas). ), the refrigerant is compressed by the compressor 5 of the outdoor unit 2 and becomes a high-temperature, high-pressure gas, which is passed through the refrigerant passage 10 of the condenser 9 of the heat storage tank 8 and circulated by the condensation (liquefaction) heat of the refrigerant. The water in the water passage 11 of the condenser 9 sent from the pump 12 is heated to exchange heat with the water in the heat storage tank 8 to produce hot water, and the pressure of the refrigerant is reduced by the expansion valve 3 of the outdoor unit 2. It is evaporated in the evaporator 4 and takes the heat from the atmosphere.
上記の動作を連続的に行ない蓄熱槽８内の水を
所定の温度まで加熱し、給湯口１４より給湯す
る。 The above operation is performed continuously to heat the water in the heat storage tank 8 to a predetermined temperature, and hot water is supplied from the hot water supply port 14.
上記のように構成したヒートポンプ式給湯機で
あれば、密閉型の蓄熱槽を利用しているため圧力
容器としての構造が必要となり価格が高くて非常
に重く扱い難いものとなる欠点があつた。 The heat pump type water heater configured as described above uses a closed heat storage tank, so it requires a structure as a pressure vessel, and has the disadvantage that it is expensive, very heavy and difficult to handle.
また、第４図に示すような従来のヒートポンプ
式給湯機は蓄熱槽８が密閉式であるが故に、蓄熱
槽８の外部に設けたヒートポンプの凝縮器９の中
に蓄熱槽８の水通路１１を形成して熱交換を行わ
なければならないため、熱交換器の構造が複雑に
なる欠点があつた。 Furthermore, since the heat storage tank 8 of the conventional heat pump water heater shown in FIG. Since heat exchange must be performed by forming a heat exchanger, the structure of the heat exchanger becomes complicated.
〈考案の目的〉
本考案は上記の点に鑑み、蓄熱槽及び熱交換器
の構造を簡単にし、効率の良いヒートポンプ加熱
を行えるようにすることを目的とする。<Purpose of the invention> In view of the above points, the present invention aims to simplify the structure of a heat storage tank and a heat exchanger, and to enable efficient heat pump heating.
〈考案の実施例〉
以下本考案のヒートポンプ式給湯機の一実施例
を第１図乃至第３図とともに説明する。<Embodiment of the invention> An embodiment of the heat pump water heater of the invention will be described below with reference to FIGS. 1 to 3.
本考案のヒートポンプ式給湯機は第１図に示す
ように構成するものであり、第１図において、２
１は室外機２２側で、該室外機２２は膨張弁２
３、蒸発器２４、圧縮機２５が冷凍サイクルとし
て配管連結され、該蒸発器２４において室外空気
と強制的に熱交換させるための送風機２６が設け
られている。 The heat pump water heater of the present invention is constructed as shown in Figure 1.
1 is the outdoor unit 22 side, and the outdoor unit 22 has an expansion valve 2.
3. An evaporator 24 and a compressor 25 are connected via piping as a refrigeration cycle, and a blower 26 is provided in the evaporator 24 to forcibly exchange heat with outdoor air.
２７は開放型の蓄熱槽２８側で、該蓄熱槽（タ
ンク）２８はステンレス、樹脂等でなる開放型仕
様に形成される。２９は凝縮器で銅管等からなり
上記蓄熱槽２８内の下部に納められ、上記室外機
２２の冷凍サイクルに配管接続される。３０は案
内筒で金属、樹脂よりなり、ポンプ３１で上記凝
縮器２９と上記蓄熱槽２８内の水との熱交換を強
制循環させる際効率よくするためのものである。
３２はボールタツプで上記蓄熱槽２８に自動的に
給水するためのものである。３３はオーバーフロ
ー口であり、３４は導入管で、上記ボールタツプ
３２より給水された水を上記蓄熱槽２８の下部へ
導くためのものである。３５は三方切換弁で上記
ポンプ３１により上記蓄熱槽２８内の水又は湯を
とり出すとき、上記蓄熱槽２８の下部か上部かの
どちらからとりだすかを切換えるためのものであ
る。３６は電磁弁、３７はフロースイツチ、３８
は給湯栓を示す。 Reference numeral 27 denotes an open type heat storage tank 28 side, and the heat storage tank (tank) 28 is formed with an open type specification made of stainless steel, resin, or the like. A condenser 29 is made of a copper tube or the like and is housed in the lower part of the heat storage tank 28, and is connected to the refrigeration cycle of the outdoor unit 22 through piping. Reference numeral 30 denotes a guide cylinder made of metal or resin, which is used to improve the efficiency of forced circulation of heat exchange between the condenser 29 and the water in the heat storage tank 28 using the pump 31.
32 is a ball tap for automatically supplying water to the heat storage tank 28. 33 is an overflow port, and 34 is an introduction pipe for guiding the water supplied from the ball tap 32 to the lower part of the heat storage tank 28. Reference numeral 35 denotes a three-way switching valve for switching whether water or hot water from the heat storage tank 28 is taken out from the bottom or top of the heat storage tank 28 when the pump 31 takes out water or hot water from the heat storage tank 28. 36 is a solenoid valve, 37 is a flow switch, 38
indicates a hot water tap.
次に上記のように構成してなる本考案のヒート
ポンプ式給湯機の動作を説明する。 Next, the operation of the heat pump water heater of the present invention constructed as described above will be explained.
まず、室外機運転時は室外機２２がオン、三方
切換弁３５がＢ方向（第１図において）の流れ、
電磁弁３６が開成の動作をさせると、第２図に示
すように室外機２２の蒸発器２４で大気中より熱
を集め（蒸発器２４の冷媒は大気中の熱をとり蒸
発気化してガスとなる。）、上記室外機２２の圧縮
機２５で圧縮されて冷媒が高温高圧のガスにな
り、蓄熱槽２８の凝縮器２９に通され、該冷媒の
凝縮（液化）熱でポンプにより循環させられた蓄
熱槽２８内の水を加熱して上記蓄熱槽２８内の水
の熱交換を行ない湯にし、上記室外機２２の膨張
弁２３で冷媒の圧力をさげ、上記蒸発器２４内で
蒸発させ、大気中の熱をとり、以後上記の動作を
連続的に行ない蓄熱槽２８内の水を所定の温度ま
で加熱し、所定の温度の湯にする。この場合の冷
媒の流れは第２図の矢印〓Ｃの方向に流れ、また
蓄熱槽２８内の水は矢印〓Ｄの方向の流れで循環
する。 First, when the outdoor unit is in operation, the outdoor unit 22 is turned on, and the three-way switching valve 35 is turned on so that the flow is in direction B (in FIG. 1).
When the solenoid valve 36 is opened, the evaporator 24 of the outdoor unit 22 collects heat from the atmosphere as shown in FIG. ), the refrigerant is compressed by the compressor 25 of the outdoor unit 22 to become a high-temperature, high-pressure gas, passed through the condenser 29 of the heat storage tank 28, and circulated by a pump using the condensation (liquefaction) heat of the refrigerant. The water in the heat storage tank 28 is heated to perform heat exchange with the water in the heat storage tank 28 to become hot water, and the pressure of the refrigerant is lowered by the expansion valve 23 of the outdoor unit 22, and the refrigerant is evaporated in the evaporator 24. , the heat in the atmosphere is taken, and the above-mentioned operations are then performed continuously to heat the water in the heat storage tank 28 to a predetermined temperature, turning it into hot water at a predetermined temperature. In this case, the refrigerant flows in the direction of arrow C in FIG. 2, and the water in the heat storage tank 28 circulates in the direction of arrow D.
そして給湯時は、第１図にもとづいて給湯栓３
８を開くことによりフロースイツチ３７に流れが
生じて動作し、該フロースイツチ３７の動作によ
つて三方切換弁３５がＡ方向の流れ、電磁弁３６
が閉成の動作、上記室外機２２がオフ動作とな
り、上記給湯機３８よりポンプ３１にて上記蓄熱
槽２８内の湯を取り出して給湯する。この場合の
湯の流れは第３図の矢印〓Ｅ方向に流れる。 Then, when supplying hot water, use the hot water tap 3 based on Figure 1.
By opening 8, a flow is generated in the flow switch 37 and the flow is activated, and the operation of the flow switch 37 causes the three-way switching valve 35 to flow in the direction A, and the solenoid valve 36
is closed, the outdoor unit 22 is turned off, and the pump 31 takes out hot water from the heat storage tank 28 from the water heater 38 to supply hot water. In this case, the hot water flows in the direction of arrow E in FIG.
上記のように本考案のヒートポンプ式給湯機を
構成することにより、室外機運転時は蓄熱槽２８
内下部より水をポンプ３１にてとりだして該蓄熱
槽２８の上部に返すという自然の理にかなつた循
環路で効率よく凝縮器２９で熱交換させ、給湯時
は上記蓄熱槽２８の上部より効率的に湯をポンプ
３１にて取り出すことができる。またポンプ３１
にて蓄熱槽２８の水を強制的に循環させて該蓄熱
槽２８の水と凝縮器２９との強制熱交換機能及び
該蓄熱槽２８の湯を取り出して給湯栓３８より給
湯する給湯機能をもたせたので、上記の二つの機
能をさせるのに２個のポンプを使用する必要がな
く、構成を簡素化することができ、その上蓄熱槽
２８を開放型に形成したので安価で軽く取り扱い
が容易なものとすることができる。 By configuring the heat pump type water heater of the present invention as described above, when the outdoor unit is operated, the heat storage tank 28
Water is taken out from the inner lower part by the pump 31 and returned to the upper part of the heat storage tank 28, which is a naturally logical circulation path to efficiently exchange heat in the condenser 29. Hot water can be taken out using the pump 31. Also pump 31
The water in the heat storage tank 28 is forcibly circulated to provide a forced heat exchange function between the water in the heat storage tank 28 and the condenser 29, and a hot water supply function in which hot water from the heat storage tank 28 is taken out and hot water is supplied from the hot water tap 38. Therefore, it is not necessary to use two pumps to perform the above two functions, and the configuration can be simplified. Furthermore, since the heat storage tank 28 is formed into an open type, it is inexpensive, lightweight, and easy to handle. It can be made into something.
〈考案の効果〉
以上本考案は、給湯用の水を貯留する開放型の
蓄熱槽２８の下部に、該蓄熱槽２８に貯留された
水を加熱するヒートポンプサイクルの凝縮器２９
を設け、
この蓄熱槽２８下部と蓄熱槽２８上部とを連通
する通路管を設け、
この通路管に蓄熱槽２８下部から上記水を導出
するポンプ３１を介装すると共に、この通路管の
ポンプ３１の吸入側と上記蓄熱槽２８の下部との
間に一方の通路がポンプ３１の吸入側と上記蓄熱
槽２８の下部とを接続する三方弁３５を設け、こ
のポンプ３１の吐出側と蓄熱槽２８上部との間に
は通路管を開閉する開閉弁３６を設け、上記三方
弁３５の他方の通路を上記開閉弁３６と蓄熱槽２
８上部との間の通路管と上記ポンプ３１の吸入側
とを接続するように設け、
上記ポンプ３１と開閉弁３６との間には給湯栓
３８を有する給湯管を接続し、
加熱時には上記三方弁の通路をポンプ３１の吸
入側と上記蓄熱槽２８の下部とを接続する方向に
切り換えると共に上記開閉弁を開成し、給湯時に
は上記三方弁３５の通路を上記開閉弁３６と蓄熱
槽２８上部との間の通路管と上記ポンプ３１の吸
入側とを接続する方向に切り換えると共に上記開
閉弁を閉成する制御回路を設けたことを特徴とす
るヒートポンプ式給湯機である。<Effects of the Invention> As described above, the present invention includes a heat pump cycle condenser 29 that heats the water stored in the heat storage tank 28, which is installed at the bottom of the open heat storage tank 28 that stores water for hot water supply.
A passage pipe is provided that communicates the lower part of the heat storage tank 28 with the upper part of the heat storage tank 28, and a pump 31 for drawing out the water from the lower part of the heat storage tank 28 is interposed in this passage pipe. A three-way valve 35 is provided between the suction side of the pump 31 and the lower part of the heat storage tank 28, one passage of which connects the suction side of the pump 31 and the lower part of the heat storage tank 28. An on-off valve 36 for opening and closing the passage pipe is provided between the upper part and the other passage of the three-way valve 35 is connected to the on-off valve 36 and the heat storage tank 2.
A hot water supply pipe having a hot water tap 38 is connected between the pump 31 and the on-off valve 36, and a hot water supply pipe having a hot water tap 38 is connected between the above three sides during heating. The passage of the valve is switched to connect the suction side of the pump 31 and the lower part of the heat storage tank 28, and the opening/closing valve is opened, and during hot water supply, the passage of the three-way valve 35 is connected to the opening/closing valve 36 and the upper part of the heat storage tank 28. This heat pump type water heater is characterized in that it is provided with a control circuit that switches the direction of connecting the passage pipe between the pump 31 and the suction side of the pump 31 and closes the on-off valve.
従つて、加熱時にはヒートポンプが駆動される
ことによつて上記凝縮器２９が加熱器として作用
するので、三方弁３５がポンプ３１の吸入側と上
記蓄熱槽２８の下部とを接続する方向に切り換え
られてポンプが駆動されることにより、開放型の
蓄熱槽２８内の水が下部から導出されて上部に還
流しながら順次加熱されることになる。このた
め、蓄熱槽２８が開放型であり、加熱器としての
凝縮器２９が蓄熱槽２８下部に配置されているだ
けの構造であるため、蓄熱槽２８、熱交換器の構
造は密閉型の蓄熱槽であつた従来のヒートポンプ
式給湯機に比べて非常に簡単なものとなる。 Therefore, during heating, the heat pump is driven and the condenser 29 acts as a heater, so the three-way valve 35 is switched to connect the suction side of the pump 31 and the lower part of the heat storage tank 28. By driving the pump, the water in the open heat storage tank 28 is drawn out from the lower part and is sequentially heated while flowing back to the upper part. For this reason, the heat storage tank 28 is an open type, and the structure is such that the condenser 29 as a heater is only placed at the bottom of the heat storage tank 28. Therefore, the structure of the heat storage tank 28 and the heat exchanger is a closed type heat storage. This is much simpler than the conventional heat pump type water heater, which uses a tank.
また給湯時には、上記三方弁３５を開閉弁３６
と蓄熱槽２８上部との間の通路管と上記ポンプ３
１の吸入側とを接続する方向に切り換えることに
より、上記ヒートポンプによる加熱時に循環を行
つたポンプ３１を利用して給湯を行うことがで
き、このポンプの兼用によつてヒートポンプ式給
湯機の構造を簡単にすることができる。 Also, when hot water is being supplied, the three-way valve 35 is opened and closed by the on-off valve 36.
and the passage pipe between the upper part of the heat storage tank 28 and the pump 3
By switching the direction to connect the suction side of 1, hot water can be supplied using the pump 31 that circulated during heating by the heat pump, and by using this pump for both purposes, the structure of the heat pump type water heater can be changed. It can be done easily.
第１図は本考案のヒートポンプ式給湯機の概略
構成図、第２図及び第３図は本考案のヒートポン
プ式給湯機の動作状態を示す概略構成図、第４図
は従来のヒートポンプ式給湯機の概略構成図であ
る。
図面中、２８は蓄熱槽、２９は凝縮器、３１は
ポンプを示す。
Figure 1 is a schematic configuration diagram of the heat pump water heater of the present invention, Figures 2 and 3 are schematic diagrams showing the operating state of the heat pump water heater of the invention, and Figure 4 is a conventional heat pump water heater. FIG. In the drawing, 28 is a heat storage tank, 29 is a condenser, and 31 is a pump.
Claims (1)
部に、該蓄熱槽２８に貯留された水を加熱するヒ
ートポンプサイクルの凝縮器２９を設け、 この蓄熱槽２８下部と蓄熱槽２８上部とを連通
する通路管を設け、 この通路管と蓄熱槽２８下部から上記水を導出
するポンプ３１を介装すると共に、この通路管の
ポンプ３１の吸入側と上記蓄熱槽２８の下部との
間に一方の通路がポンプ３１の吸入側と上記蓄熱
槽２８の下部とを接続する三方弁３５を設け、こ
のポンプ３１の吐出側と蓄熱槽２８上部との間に
は通路管を開閉する開閉弁３６を設け、上記三方
弁３５の他方の通路を上記開閉弁３６と蓄熱槽２
８上部との間の通路管と上記ポンプ３１の吸入側
とを接続するように設け、 上記ポンプ３１と開閉弁３６との間には給湯栓
３８を有する給湯管を接続し、 加熱時には上記三方弁の通路をポンプ３１の吸
入側と上記蓄熱槽２８の下部とを接続する方向に
切り換えると共に上記開閉弁を開成し、給湯時に
は上記三方弁３５の通路を上記開閉弁３６と蓄熱
槽２８上部との間の通路管と上記ポンプ３１の吸
入側とを接続する方向に切り換えると共に上記開
閉弁を閉成する制御回路を設けたことを特徴とす
るヒートポンプ式給湯機。[Scope of Claim for Utility Model Registration] A heat pump cycle condenser 29 for heating the water stored in the heat storage tank 28 is provided at the bottom of an open heat storage tank 28 that stores water for hot water supply, and this heat storage tank 28 A passage pipe is provided that communicates the lower part with the upper part of the heat storage tank 28, and a pump 31 is provided to draw out the water from the passage pipe and the lower part of the heat storage tank 28. A three-way valve 35 is provided, one passage of which connects the suction side of the pump 31 and the lower part of the heat storage tank 28, and a passage between the discharge side of the pump 31 and the upper part of the heat storage tank 28. An on-off valve 36 for opening and closing the pipe is provided, and the other passage of the three-way valve 35 is connected to the on-off valve 36 and the heat storage tank 2.
A hot water supply pipe having a hot water tap 38 is connected between the pump 31 and the on-off valve 36, and a hot water supply pipe having a hot water tap 38 is connected between the pump 31 and the on-off valve 36. The passage of the valve is switched to connect the suction side of the pump 31 and the lower part of the heat storage tank 28, and the opening/closing valve is opened, and during hot water supply, the passage of the three-way valve 35 is connected to the opening/closing valve 36 and the upper part of the heat storage tank 28. A heat pump type water heater characterized by being provided with a control circuit that switches the direction of connecting the passage pipe between the two and the suction side of the pump 31 and closes the on-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7599784U JPS60187859U (en) | 1984-05-23 | 1984-05-23 | Heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7599784U JPS60187859U (en) | 1984-05-23 | 1984-05-23 | Heat pump water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60187859U JPS60187859U (en) | 1985-12-12 |
| JPH0416112Y2 true JPH0416112Y2 (en) | 1992-04-10 |
Family
ID=30617727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7599784U Granted JPS60187859U (en) | 1984-05-23 | 1984-05-23 | Heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60187859U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6159579B2 (en) * | 2013-05-29 | 2017-07-05 | リンナイ株式会社 | Water heater |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104433A (en) * | 1981-12-15 | 1983-06-21 | Matsushita Electric Ind Co Ltd | Hot water supply system |
-
1984
- 1984-05-23 JP JP7599784U patent/JPS60187859U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104433A (en) * | 1981-12-15 | 1983-06-21 | Matsushita Electric Ind Co Ltd | Hot water supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60187859U (en) | 1985-12-12 |
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