JPH024168A - Heat pump - Google Patents
Heat pumpInfo
- Publication number
- JPH024168A JPH024168A JP15299188A JP15299188A JPH024168A JP H024168 A JPH024168 A JP H024168A JP 15299188 A JP15299188 A JP 15299188A JP 15299188 A JP15299188 A JP 15299188A JP H024168 A JPH024168 A JP H024168A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- evaporator
- motor
- refrigerant
- heat pump
- 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.)
- Granted
Links
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002966 varnish Substances 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 238000001704 evaporation Methods 0.000 claims abstract description 11
- 230000008020 evaporation Effects 0.000 claims abstract description 11
- 238000009833 condensation Methods 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 5
- 239000003507 refrigerant Substances 0.000 claims description 39
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 abstract description 20
- 239000003822 epoxy resin Substances 0.000 abstract description 14
- 229920000647 polyepoxide Polymers 0.000 abstract description 14
- 238000004804 winding Methods 0.000 abstract description 11
- 239000002826 coolant Substances 0.000 abstract 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 5
- 125000002723 alicyclic group Chemical group 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000005437 stratosphere Substances 0.000 description 4
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000011353 cycloaliphatic epoxy resin Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分骨〕
本発明は冷媒としてジクロロトリフルオロエタン（以下
’Ｒ−１２３，と記す）を用いるヒートポンプに関する
ものである。なお、ここでヒートポンプとは温流体を製
造する狭義のヒートポンプのみならず、冷流体を製造す
る冷凍機も含むものとする。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a heat pump that uses dichlorotrifluoroethane (hereinafter referred to as 'R-123) as a refrigerant. Note that the heat pump here includes not only a heat pump in a narrow sense that produces hot fluid, but also a refrigerator that produces cold fluid.
ビル空調等の圧縮方式のヒートポンプの作動冷媒として
用いられるフロン（主にトリクロロモノフルオロメタン
、以下’Ｒ−１１，と記す）が大気成層圏のオゾン層を
破壊するという理由により、近年その使用を国際的に規
制しようとする検討が行なわれている。即ち、大気成層
圏のオゾン層は生物に有害な波長２９０〜３２０ ｎｍ
の光を吸収し、この光が大地に到達しないようにする作
用を有しているが、フロン中に含まれる塩素（Ｃ２）が
このオゾンを分解し、破壊したならば、上記生物に有害
な光が地表に到達してしまう。そこで大気成層圏のオゾ
ン層の破壊を防止しようという議論がなされているので
ある。Freon (mainly trichloromonofluoromethane, hereinafter referred to as 'R-11), which is used as a working refrigerant in compression-type heat pumps for building air conditioning, etc., destroys the ozone layer in the atmospheric stratosphere, so its use has recently been internationally banned. Consideration is currently being given to regulating the situation. In other words, the ozone layer in the atmospheric stratosphere has wavelengths of 290 to 320 nm that are harmful to living things.
However, if the chlorine (C2) contained in Freon decomposes and destroys this ozone, it will become harmful to the living organisms mentioned above. light reaches the earth's surface. Therefore, there are discussions about preventing the depletion of the ozone layer in the atmospheric stratosphere.
フロン規制に関する具体的例としては、１９８７年９月
に行なわれたオゾン層保護条約に基づくモントリオール
外交会議で採択された議定書がある。ここでは、Ｒ−１
１，Ｒ−１１３，Ｒ−１２、Ｒ−１１４，Ｒ−１１５等
がその規制の対象物となり、その生産及び消費量を段階
的に削減することとなった。A specific example of CFC regulation is the protocol adopted at the Montreal Diplomatic Conference based on the Ozone Layer Protection Convention held in September 1987. Here, R-1
1, R-113, R-12, R-114, R-115, etc. became subject to this regulation, and their production and consumption were to be reduced in stages.
このため現在、圧縮式ヒートポンプにおいて、主に使用
されているＲ−１１に変わる代替冷媒を用いたヒートポ
ンプの開発が急がれている。Therefore, there is an urgent need to develop a heat pump using an alternative refrigerant to R-11, which is currently mainly used in compression heat pumps.
上記Ｒ−１１に変わる代替冷媒の候補としてＲ−１２３
が研究されている。しかじから、この冷媒は電動機の電
線の有機絶縁材料に対して強い溶解作用と膨潤作用があ
り、電動機巻線の絶縁破壊事故を引き起こすという大き
な欠点があり、このため冷媒冷却の電動機により駆動さ
れるヒートポンプには１、このＲ−１２３は使用できな
いものであった。R-123 as a candidate for an alternative refrigerant to the above R-11
is being studied. However, this refrigerant has a strong dissolving and swelling effect on the organic insulating material of electric motor wires, and has the major disadvantage of causing dielectric breakdown accidents in the motor windings. 1, this R-123 could not be used in heat pumps.
本発明は上述の点に鑑みてなされたもので、Ｒ−１２３
を冷媒として用い、且つ電動機巻線の絶縁事故を起こす
ことのない、無公害で高寿命の冷媒冷却の電動機により
駆動されるヒートポンプを提供することにある。The present invention has been made in view of the above points, and is based on R-123.
It is an object of the present invention to provide a heat pump driven by a non-polluting, long-life, refrigerant-cooled electric motor that uses refrigerant as a refrigerant and does not cause an insulation failure of motor windings.
上記課題を解決するため本発明は、電動機駆動圧縮機、
凝縮器、蒸発器、減圧機構を具備し、これらの機器間を
冷媒経路で接続して冷媒循環流路で接続して冷媒循環流
路を形成し、前記電動機が冷媒液により冷却きれている
ヒートポンプにおいて、作動流体としてＲ−１２３が用
いられ、且つ前記！動機の処理ワニスがビスフェノール
Ａ型エポキシ樹脂であり、且つ前記蒸発器を加熱する加
熱流体の温度がある上限温度以上とならないように制御
できる加熱流体温度制御装置を有することを特徴とする
。In order to solve the above problems, the present invention provides an electric motor-driven compressor,
A heat pump that is equipped with a condenser, an evaporator, and a pressure reduction mechanism, these devices are connected by a refrigerant path to form a refrigerant circulation path, and the electric motor is completely cooled by the refrigerant liquid. In , R-123 is used as the working fluid, and in the above! It is characterized in that the treated varnish is a bisphenol A type epoxy resin, and that it has a heating fluid temperature control device that can control the temperature of the heating fluid that heats the evaporator so that it does not exceed a certain upper limit temperature.
また、電動機駆動圧縮機、凝縮器、蒸発器、減圧機構を
具備し、これらの機器間を冷媒経路で接続して冷媒循環
流路で接続して冷媒循環流路を形成し、前記電動機が冷
媒液により冷却きれているヒートポンプにおいて、作動
流体としてＲ−１２３が用いられ、且つ前記電動機の処
理ワニスがビスフェノールＡ型エポキシ樹脂であり、且
つ前記凝縮器を冷却する冷却流体の温度がある上限温度
以上とならないように制御できる冷却流体温度制御装置
を有することを特徴とする。It also includes a motor-driven compressor, a condenser, an evaporator, and a pressure reduction mechanism, and these devices are connected by a refrigerant path and connected by a refrigerant circulation path to form a refrigerant circulation path, and the motor drives the refrigerant. In a heat pump that is fully cooled by a liquid, R-123 is used as the working fluid, the varnish treated for the electric motor is bisphenol A epoxy resin, and the temperature of the cooling fluid that cools the condenser is higher than a certain upper limit temperature. It is characterized by having a cooling fluid temperature control device that can control the temperature so that it does not occur.
なお、本発明における処理ワニスとは、第２図に示す如
くマグネットワイヤー２１に巻かれたマイカ−テープ層
２２の隙間を埋める充填樹脂である処理ワニス２３のこ
とを云う。Note that the treated varnish in the present invention refers to treated varnish 23, which is a filling resin that fills the gap between the mica tape layer 22 wound around the magnet wire 21, as shown in FIG.
ヒートポンプを上記の如く構成することにより、電動機
冷却用の冷媒液がある上限温度以下に保つことができる
ので、電動機の処理ワニスのビスフェノールＡ型樹脂は
Ｒ−１２３に対してほとんど溶解したり、膨潤したり変
色することがなく、この電動機をＲ−１２３と直接接触
させ、冷却しても、絶縁破壊事故を起こすことがなく、
高寿命のヒートポンプとなる。By configuring the heat pump as described above, the refrigerant liquid for cooling the electric motor can be kept below a certain upper limit temperature, so that the bisphenol A type resin in the treatment varnish for the electric motor hardly dissolves or swells in R-123. Even if this motor is brought into direct contact with R-123 and cooled, there will be no dielectric breakdown accident.
It becomes a long-life heat pump.
また、冷媒として−Ｒ−１２３を使用するので大気成層
圏のオゾン層をほとんど破壊することなく、安全で無公
害のヒートポンプとなる。Furthermore, since -R-123 is used as a refrigerant, the heat pump does not substantially destroy the ozone layer in the atmospheric stratosphere, making it a safe and non-polluting heat pump.
以下、本発明の一実施例を図面に基づいて説明する。但
し、この実施例はあくまでも本発明の実施態様の一例で
あり、本発明はこの実施例に限定されるものではない。Hereinafter, one embodiment of the present invention will be described based on the drawings. However, this example is just one example of the embodiment of the present invention, and the present invention is not limited to this example.
第１図は本発明に係るヒートポンプの概略構成を示す図
である。同図において、１は圧縮機、２は凝縮器、３は
減圧装置、４は蒸発器である。これら圧縮機１、凝縮器
２、減圧装置３及び蒸発器４は冷媒経路で接続され冷媒
循環経路を形成している。FIG. 1 is a diagram showing a schematic configuration of a heat pump according to the present invention. In the figure, 1 is a compressor, 2 is a condenser, 3 is a pressure reducing device, and 4 is an evaporator. These compressor 1, condenser 2, pressure reducing device 3, and evaporator 4 are connected by a refrigerant path to form a refrigerant circulation path.
上記構成のヒートポンプにおいて、圧縮機１は遠心式の
圧縮機であり、該圧縮機１で圧縮された冷媒ガスは凝縮
器２にて流路５から送られてくる冷媒流体により冷却及
び凝縮され、減圧装置３にて減圧された後、蒸発器４に
至る。該蒸発器４では流路６から送られる加熱流体によ
り、加熱及び蒸発きれ、再び遠心式の圧縮機１に戻り、
ヒートポンプサイクルを構成する。一方、流路５を流れ
る冷却流体は凝縮器２にて加熱きれ、流路６を流れる加
熱流体は蒸発器４にて冷却される。このヒートポンプに
おいては、冷媒としてＲ−１２３が使用される。In the heat pump having the above configuration, the compressor 1 is a centrifugal compressor, and the refrigerant gas compressed by the compressor 1 is cooled and condensed by the refrigerant fluid sent from the flow path 5 in the condenser 2, After being depressurized in the decompression device 3, it reaches the evaporator 4. In the evaporator 4, the heating fluid sent from the flow path 6 completes heating and evaporation, and returns to the centrifugal compressor 1 again.
Configure a heat pump cycle. On the other hand, the cooling fluid flowing through the channel 5 is completely heated by the condenser 2, and the heating fluid flowing through the channel 6 is cooled by the evaporator 4. In this heat pump, R-123 is used as a refrigerant.
また、凝縮器２で凝縮したＲ−１２３の液の一部は、凝
縮器２と蒸発器４の圧力差により、冷媒通路１４を通っ
て電動機８に送られ、電動機８の巻線９等を冷却し、冷
媒自身は加熱・蒸発され、冷媒通路１５を通って、蒸発
器４に戻る。冷媒通路１４中には減圧装置７があり、電
動機８内に送られるＲ−１２３凝縮液の温度及び圧力状
態を略蒸発器４内の温度及び圧力状態に下げるようにな
っている。Further, a part of the R-123 liquid condensed in the condenser 2 is sent to the electric motor 8 through the refrigerant passage 14 due to the pressure difference between the condenser 2 and the evaporator 4, and the winding 9 of the electric motor 8, etc. After cooling, the refrigerant itself is heated and evaporated, and returns to the evaporator 4 through the refrigerant passage 15. A pressure reducing device 7 is provided in the refrigerant passage 14 to lower the temperature and pressure state of the R-123 condensate sent into the electric motor 8 to approximately the temperature and pressure state within the evaporator 4.
電動機８の巻線９の処理ワニスには、ビスフェノールＡ
型エポキシ樹脂が用いられている。また、蒸発器４には
蒸発器内圧力検出器１０が取り付けられている。この蒸
発器内圧力検出器１０の検出圧力信号は制御装置１１に
送られるが、圧力が上昇して、蒸発温度がある上限温度
に達し、その結果電動機冷却用冷媒の温度が上昇し、電
動機８の巻線９の温度が高くなると（具体的には６０℃
以上）、電動機巻線温度を低下する処置が取られる。例
えば圧縮機１の容量制御装置であるサクションベーンコ
ントロール装置１２を駆動するモータ１３を作動きせ、
蒸発器４の内圧を低下させる。なお、この蒸発温度を制
御する手段は、蒸発温度又は、蒸発圧力だけでなく、熱
源水温度等により間接的に制御してもよい、これにより
電動機８の巻線温度はある上限温度（具体的には６０℃
）以下に櫟たれる。The varnish used to treat the windings 9 of the electric motor 8 contains bisphenol A.
Type epoxy resin is used. Further, an evaporator internal pressure detector 10 is attached to the evaporator 4. The detected pressure signal of the evaporator internal pressure detector 10 is sent to the control device 11, but the pressure increases and the evaporation temperature reaches a certain upper limit temperature.As a result, the temperature of the motor cooling refrigerant rises, and the motor 8 When the temperature of the winding 9 increases (specifically, 60°C
above), measures are taken to lower the motor winding temperature. For example, operating the motor 13 that drives the suction vane control device 12, which is a capacity control device of the compressor 1,
The internal pressure of the evaporator 4 is lowered. Note that the means for controlling the evaporation temperature is not limited to the evaporation temperature or evaporation pressure, but may also be indirectly controlled by the heat source water temperature, etc., so that the winding temperature of the electric motor 8 can be set to a certain upper limit temperature (specifically 60℃ for
) below.
ヒートポンプを上記の如く構成することにより、効率よ
く長期にわたって運転することができるものとなる。By configuring the heat pump as described above, it can be operated efficiently over a long period of time.
上記のように、本発明は電動機の処理ワニスにビスフェ
ノールＡ型エポキシ樹脂を用い、その使用温度は６０℃
以下になるように制御され、且つ冷媒としてＲ−１２３
が用いられるという３つの条件を全て満足することによ
り、成層圏オゾン層に悪影響を及ぼさない冷媒により、
冷却される電動機を用いるヒートポンプを実現したもの
であるが、この上記３つの条件を設定するためには長時
間にわたってＲ−１２３を使用しろる条件を追求し、且
つ電動機の処理ワニスの材質についても深く検討した結
果によるものである。As mentioned above, the present invention uses bisphenol A type epoxy resin as a treatment varnish for electric motors, and the operating temperature is 60°C.
R-123 as a refrigerant.
By satisfying all three conditions of using a refrigerant that does not have a negative impact on the stratospheric ozone layer,
This is a heat pump that uses a cooled electric motor, but in order to meet the above three conditions, we sought conditions that would allow R-123 to be used for a long period of time, and also determined the material of the varnish used to treat the electric motor. This is the result of deep consideration.
その研究結果を例を第３図に示す。この研究結果は脂環
式とビスフェノールＡ型のエポキシ樹脂に付いてＲ−１
２３雰囲気中での試験結果である。同図において、Ａは
脂環式エポキシ樹脂であり、ＢはビスフェノールＡ型エ
ポキシ樹脂である。図かられかるように、Ｒ−１２３の
温度が１２０℃では脂環式エポキシ樹脂では変色しない
がビスフェノールＡ型エポキシ樹脂では変色がみられ、
耐性がない。従って高温域（即ち電動機を高温で冷却す
る場合）では脂環式エポキシ樹脂が使用可能である。An example of the research results is shown in Figure 3. The results of this study are R-1 for cycloaliphatic and bisphenol A epoxy resins.
These are test results in a No. 23 atmosphere. In the figure, A is an alicyclic epoxy resin, and B is a bisphenol A type epoxy resin. As can be seen from the figure, when the temperature of R-123 is 120°C, alicyclic epoxy resin does not change color, but bisphenol A epoxy resin does.
I have no tolerance. Therefore, cycloaliphatic epoxy resins can be used in high temperature ranges (ie, when cooling electric motors at high temperatures).
一方、Ｒ−１２３の温度が６０℃では、脂環式エポキシ
樹脂とビスフェノールＡｆｉエポキシｔｔｉｉｍのどち
らも変色せず耐性がある。しかし元来脂環式エポキシ樹
脂は脆いという欠点を有しており、また低い温度の冷媒
による冷却の際には温度変化が大きくヒートショックも
起こりやすいので、前記脆いという欠点が助長される。On the other hand, when the temperature of R-123 is 60°C, both the alicyclic epoxy resin and the bisphenol Afi epoxy ttiim do not change color and are resistant. However, alicyclic epoxy resins inherently have the disadvantage of being brittle, and when cooled with a low-temperature refrigerant, temperature changes are large and heat shock is likely to occur, which exacerbates the above-mentioned disadvantage of brittleness.
従って低温域（即ち電動機を低温で冷却する場合）では
ビスフェノールＡ型エポキシ樹脂が処理ワ纂スとして最
適である。Therefore, bisphenol A type epoxy resin is most suitable as a treatment wax in a low temperature range (ie, when an electric motor is cooled at a low temperature).
なお、本発明では処理ワニスとしてビスフェノールＡ型
エポキシ樹脂を用いるものであるが、電動機Ｂ内の処理
ワニス以外の部分、即ち第２図に示す例で説明すれば、
マイカ−テープ層２２の隙間を埋める充填＃１詣以外の
場所にも、このビスフェノールＡ型エポキシ樹脂を用い
てもよいことは勿論である。In the present invention, a bisphenol A type epoxy resin is used as the treated varnish, but the explanation will be based on the part other than the treated varnish inside the electric motor B, that is, the example shown in FIG.
Of course, this bisphenol A type epoxy resin may also be used in places other than filling #1 to fill gaps in the mica tape layer 22.
以上説明したように本発明のヒートポンプは下記のよう
な優れた効果を有する。As explained above, the heat pump of the present invention has the following excellent effects.
（１）冷媒としてＲ−１２３を用いるからヒートポンプ
から冷媒が万が一漏れても成層圏オゾン層を破壊するこ
とが殆どない。(1) Since R-123 is used as the refrigerant, even if the refrigerant leaks from the heat pump, it will hardly destroy the stratospheric ozone layer.
（２）蒸発温度制御装置又は凝縮温度制御装置により、
蒸発温度又は凝縮温度がある上限温度以上とならないよ
う制御するので、Ｒ−１２３の温度が所定値以上になら
ず、電動機の処理ワニスとして用いられているビスフェ
ノールＡ型エポキシ樹脂の劣化、即ち、電動機コイルが
劣化しない。(2) By the evaporation temperature control device or condensation temperature control device,
Since the evaporation temperature or condensation temperature is controlled so that it does not exceed a certain upper limit temperature, the temperature of R-123 does not exceed a predetermined value, and the deterioration of the bisphenol A epoxy resin used as a treatment varnish for electric motors. The coil will not deteriorate.
第１図は本発明に係るヒートポンプの概略構成を示す図
、第２図は電動機巻線断面図、第３図は電動機の処理ワ
ニスのＲ−１２３雰囲気中におけるエポキシ樹脂の研究
結果を示す図である。
図中、１・・・・圧縮機、２・・・・凝縮器、３・・・
・減圧装置、４・・・・蒸発器、５・・・・流路、６・
・・・流路、７・・・・減圧装置、８・・・・電動機、
９・・・・巻線、１０・・・・蒸発器内圧力検出器、１
１・・・・制御装！、１２・・・・サクションベーンコ
ントロール装置、１３・・・・モータ、１４・・・・冷
媒通路、１５・・・・冷媒通路。Fig. 1 is a diagram showing a schematic configuration of a heat pump according to the present invention, Fig. 2 is a cross-sectional view of a motor winding, and Fig. 3 is a diagram showing research results of epoxy resin in an R-123 atmosphere for treatment varnish of a motor. be. In the figure, 1...compressor, 2...condenser, 3...
- Pressure reducing device, 4... evaporator, 5... flow path, 6...
...flow path, 7 ... pressure reducing device, 8 ... electric motor,
9...Winding, 10...Evaporator internal pressure detector, 1
1...Control unit! , 12... Suction vane control device, 13... Motor, 14... Refrigerant passage, 15... Refrigerant passage.
Claims (2)
具備し、これらの機器間を冷媒経路で接続して冷媒循環
経路を形成し、前記電動機が冷媒液により冷却されるヒ
ートポンプにおいて、作動流体としてジクロロトリフル
オロエタンが用いられ、且つ前記電動機の処理ワニスが
ビスフェノールＡ型エポキシ樹脂であり、且つ前記蒸発
器の蒸発温度がある上限温度以上とならないように直接
又は間接的に制御できる蒸発温度制御装置を有すること
を特徴とするヒートポンプ。(1) A heat pump that is equipped with an electric motor-driven compressor, a condenser, an evaporator, and a pressure reduction mechanism, these devices are connected by a refrigerant path to form a refrigerant circulation path, and the electric motor is cooled by the refrigerant liquid, An evaporation system in which dichlorotrifluoroethane is used as a working fluid, the varnish used to treat the electric motor is a bisphenol A epoxy resin, and the evaporation temperature of the evaporator can be controlled directly or indirectly so as not to exceed a certain upper limit temperature. A heat pump characterized by having a temperature control device.
具備し、これらの機器間を冷媒経路で接続して冷媒循環
経路を形成し、前記電動機が冷媒液により冷却されるヒ
ートポンプにおいて、作動流体としてジクロロトリフル
オロエタンが用いられ、且つ前記電動機の処理ワニスが
ビスフェノールＡ型エポキシ樹脂であり、且つ前記凝縮
器の凝縮温度がある上限温度以上とならないように直接
又は間接的に制御できる凝縮温度制御装置を有すること
を特徴とするヒートポンプ。(2) A heat pump that is equipped with an electric motor-driven compressor, a condenser, an evaporator, and a pressure reduction mechanism, these devices are connected by a refrigerant path to form a refrigerant circulation path, and the electric motor is cooled by the refrigerant liquid, Condensation in which dichlorotrifluoroethane is used as a working fluid, the varnish used for treating the electric motor is a bisphenol A epoxy resin, and the condensation temperature of the condenser can be controlled directly or indirectly so as not to exceed a certain upper limit temperature. A heat pump characterized by having a temperature control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63152991A JP2546705B2 (en) | 1988-06-21 | 1988-06-21 | heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63152991A JP2546705B2 (en) | 1988-06-21 | 1988-06-21 | heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH024168A true JPH024168A (en) | 1990-01-09 |
| JP2546705B2 JP2546705B2 (en) | 1996-10-23 |
Family
ID=15552571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63152991A Expired - Lifetime JP2546705B2 (en) | 1988-06-21 | 1988-06-21 | heat pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2546705B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124851U (en) * | 1991-04-30 | 1992-11-13 | 神鋼電機株式会社 | Stator of refrigerator motor |
-
1988
- 1988-06-21 JP JP63152991A patent/JP2546705B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124851U (en) * | 1991-04-30 | 1992-11-13 | 神鋼電機株式会社 | Stator of refrigerator motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2546705B2 (en) | 1996-10-23 |
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