JPH01127868A - Five-way reverse valve - Google Patents
Five-way reverse valveInfo
- Publication number
- JPH01127868A JPH01127868A JP62285524A JP28552487A JPH01127868A JP H01127868 A JPH01127868 A JP H01127868A JP 62285524 A JP62285524 A JP 62285524A JP 28552487 A JP28552487 A JP 28552487A JP H01127868 A JPH01127868 A JP H01127868A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- high pressure
- chamber
- defrosting
- compressor
- 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
- 230000002441 reversible effect Effects 0.000 title claims description 4
- 238000010257 thawing Methods 0.000 claims abstract description 20
- 238000005057 refrigeration Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Multiple-Way Valves (AREA)
Abstract
Description
【発明の詳細な説明】
皮栗上夙科里分立
本発明は冷暖切換型の可逆冷凍サイクルに用いられる除
霜用弁付きの三方逆転弁に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a three-way reversing valve with a defrosting valve used in a reversible refrigeration cycle that switches between cooling and heating.
盗ｍ支青
可逆冷凍サイクルの暖房運転時に蒸発器として使用して
いる室外熱交換器に付着した霜を除去するに際しては、
従来は切換弁を作動させて冷房運転に切換えることによ
り室外熱交換器を凝縮器として用いてその発熱により除
霜している。When removing frost that has adhered to the outdoor heat exchanger used as an evaporator during heating operation of the reversible refrigeration cycle,
Conventionally, an outdoor heat exchanger is used as a condenser by operating a switching valve to switch to cooling operation, and the heat generated by the outdoor heat exchanger is used to defrost the air.
しかし、この方法では切換弁の作動時に高圧の流れによ
る大きな騒音が発生し、また短時間ではあるが冷房運転
に切換えるので装置の効率の良い運転が出来ない等の欠
点があった。However, this method has the drawbacks that when the switching valve is activated, a large amount of noise is generated due to the high-pressure flow, and that the system cannot be operated efficiently because it switches to cooling operation, albeit for a short time.
（シよ゛と る口 占
本発明は上記した点に着目して為されたものであり、暖
房運転のままにおける冷凍サイクルの作動状態において
、三方切換弁の除霜用弁を作動させて高圧ガスを室外熱
交換器へ送って除霜するようにしたものである。The present invention has been made with attention to the above points, and the defrosting valve of the three-way switching valve is operated to control high pressure when the refrigeration cycle is in operation while heating is still in operation. This defrosts the gas by sending it to an outdoor heat exchanger.
−占 ”るための
上記の目的を達成するため、本発明においては、シリン
ダ状の逆転弁本体内をピストンにより高圧室と圧力変換
室に区画し、高圧室に圧縮機の吐出管に対する接続口と
、圧縮機の吸入管に対する接続口及び該接続口を挟んで
室外と室内の２個の熱交換器用導管に対する接続口とを
設け、吸入管に対する接続口から２個の熱交換器用導管
に対する接続口にかけて一連の切換用弁シートを設け、
切換用弁シートに摺接するスライドパルプをピストンに
連結し、ピストンに高圧室と圧力変換室を連通させる均
圧孔を形成し、ピストンを高圧室方向に付勢するばねを
設け、圧力変換室に対し該均圧孔より大径の圧力逃し口
を有していて圧縮機の吸入側に連通ずる導管を接続し、
高圧室内に室外熱交換器にいたる別の導管に対する別の
接続口を設け、他の圧力変換室と高圧室との間において
ばねにより高圧室方向に付勢されるピストン部材とこれ
に連動して該別の接続口を開閉する除霜用弁を設け、該
他の圧力変換室に圧縮機の吸入側に連通ずる導管を接続
し、圧縮機の吸入側に連通ずる上記２本の導管の間に三
方電磁弁を介在させ、該三方電磁弁の動作時において両
方の圧力変換室を圧縮機の吸入側に連通させる構成を採
用した。In order to achieve the above object, the cylindrical reversing valve body is divided into a high pressure chamber and a pressure conversion chamber by a piston, and the high pressure chamber has a connection port to the discharge pipe of the compressor. and a connection port for the suction pipe of the compressor and a connection port for two heat exchanger conduits, an outdoor one and an indoor one, across the connection port, and a connection port for the two heat exchanger conduits from the connection port for the suction pipe. A series of switching valve seats are provided across the mouth,
A slide pulp that slides on the switching valve seat is connected to the piston, a pressure equalizing hole is formed in the piston to communicate the high pressure chamber and the pressure conversion chamber, a spring is provided to bias the piston toward the high pressure chamber, and the pressure conversion chamber is connected to the slide pulp. In contrast, a conduit having a pressure relief port with a larger diameter than the pressure equalization hole and communicating with the suction side of the compressor is connected,
Another connection port for another conduit leading to the outdoor heat exchanger is provided in the high pressure chamber, and a piston member urged toward the high pressure chamber by a spring is interlocked with the other connection port between the other pressure conversion chamber and the high pressure chamber. A defrosting valve that opens and closes the other connection port is provided, a conduit communicating with the suction side of the compressor is connected to the other pressure conversion chamber, and between the two conduits communicating with the suction side of the compressor. A three-way solenoid valve is interposed between the three-way solenoid valve, and both pressure conversion chambers are communicated with the suction side of the compressor when the three-way solenoid valve is operated.
！隻■
第１図乃至第４図において、ｖｌは三方逆転弁、ｖ２は
三方電磁弁を示す。! ■ In Figures 1 to 4, vl indicates a three-way reversing valve, and v2 indicates a three-way solenoid valve.
１はシリンダ状の逆転弁本体であり、両端部に栓体、２
．３が設けられている。逆転弁本体ｌにおいて、周面の
１側には圧縮機４の吐出管５が連結され、周面の他側に
は軸方向において圧縮機４の吸入管６を挟んで２本の導
管７．８が連結される。導管７．８は凝縮機又は蒸発器
として逆転的に使用される室外熱交換器９と室内熱交換
器１０に連結される。吸入管６と導管７，８の内端は逆
転弁本体１内に固着される切換用弁シート１１の３個の
通孔１１ａ、ｌｌｂ、ｌｌｃに接続され、弁シート１１
の内側には一連の平滑面ｌｉｄが形成される。1 is a cylindrical reversing valve body, with plugs at both ends, 2
．． 3 is provided. In the reversing valve main body l, a discharge pipe 5 of the compressor 4 is connected to one side of the circumferential surface, and two conduits 7. 8 are connected. Conduit 7.8 is connected to an outdoor heat exchanger 9 and an indoor heat exchanger 10, which are used reciprocally as condenser or evaporator. The inner ends of the suction pipe 6 and the conduit pipes 7 and 8 are connected to three through holes 11a, llb, and llc of a switching valve seat 11 fixed in the reversing valve body 1.
A series of smooth surface lids are formed inside.
逆転弁本体１内において、弁シート１１と栓体３間にお
いてピストン１２が摺動自在に設けられ、逆転弁本体１
内を高圧室Ｒ，と圧力変換室Ｒ２に区画する。ピストン
１２と栓体３間には圧縮ばね１３が設けられ、ピストン
１２は高圧室Ｒ，方向に常時付勢されている。ピストン
１２には高圧室Ｒ，と圧力変換室Ｒ２を常時連通させる
均圧孔１２ａが形成され、栓体３には該均圧孔１２ａよ
りも径の大きい圧力逃し口１４ａを有する導管１４が接
続される。Inside the reversing valve body 1, a piston 12 is slidably provided between the valve seat 11 and the stopper 3.
The interior is divided into a high pressure chamber R and a pressure conversion chamber R2. A compression spring 13 is provided between the piston 12 and the stopper 3, and the piston 12 is always biased toward the high pressure chamber R. A pressure equalization hole 12a is formed in the piston 12 to constantly communicate the high pressure chamber R and the pressure conversion chamber R2, and a conduit 14 having a pressure relief port 14a with a larger diameter than the pressure equalization hole 12a is connected to the plug body 3. be done.
該導管１４はパイロット三方電磁弁ｖ２のボートＡに接
続され、該パイロット三方電磁弁Ｖ、のボー）Ｃには圧
縮機４の吸入側６に至る導管１５が接続される。The conduit 14 is connected to the boat A of the pilot three-way solenoid valve v2, and the conduit 15 leading to the suction side 6 of the compressor 4 is connected to the boat C of the pilot three-way solenoid valve V.
弁シートｌｌ上には連通用内腔１６ａを有するスライド
バルブ１６が設けられ、該スライドパルプ１６は連結杆
１７によりピストン１２に連結される。スライドバルブ
１６はその移動により内腔１６ａを介して弁シート１１
における吸入管６に対する通孔１１ａをその両側の熱交
換器に至る導管７．８に対する通孔１１ｂ、ｌｌｃに対
して択一的に連通させる。A slide valve 16 having a communication bore 16a is provided on the valve seat 11, and the slide valve 16 is connected to the piston 12 by a connecting rod 17. Due to its movement, the slide valve 16 contacts the valve seat 11 through the inner cavity 16a.
The openings 11a for the suction pipes 6 are alternatively communicated with the openings 11b, llc for the conduits 7.8 leading to the heat exchangers on both sides thereof.
栓体２側において、高圧室Ｒ１内に位置してシリンダ１
８が設けられると共に該シリンダ１８内には均圧孔１９
ａを有するピストン１９が摺動自在に設けられ、栓体２
との間に圧力変換室Ｒ１を区画する。ピストン１９は栓
体２との間に設けた圧縮ばね２０により常時高圧室Ｒ１
方向に付勢されてストッパー１８ａに当接する。On the plug body 2 side, the cylinder 1 is located in the high pressure chamber R1.
8 is provided, and a pressure equalizing hole 19 is provided in the cylinder 18.
a piston 19 is slidably provided, and the stopper 2
A pressure conversion chamber R1 is defined between the two. The piston 19 is always kept in the high pressure chamber R1 by the compression spring 20 provided between the piston 19 and the plug body 2.
direction and comes into contact with the stopper 18a.
弁シート１１の延長部には、通孔１１ｆが形成されると
共に該弁シー）１１上には該通孔１１ｆを開、閉する除
霜用弁２１が設けられていて連結杆２２によりピストン
１９に連結される。通孔１１ｆには、室外熱交換器９と
絞り手段２３との間の管路に接続される導管２４が接続
され、圧力変換室Ｒ３には栓体２を介してパイロット三
方電磁弁■２のボー）Ｂに至る前記同様の圧力逃し口２
５ａを有する導管２５が接続される。A through hole 11f is formed in the extension of the valve seat 11, and a defrosting valve 21 is provided on the valve seat 11 to open and close the through hole 11f. connected to. A conduit 24 connected to a conduit between the outdoor heat exchanger 9 and the throttle means 23 is connected to the through hole 11f, and a pilot three-way solenoid valve 2 is connected to the pressure conversion chamber R3 via the plug 2. B) Pressure relief port 2 similar to the above leading to B
A conduit 25 with 5a is connected.
三方電磁弁ｖ２は、弁本体２６にプランジャ管２７を介
してソレノイドコイル２８が給金されている。In the three-way solenoid valve v2, a solenoid coil 28 is supplied to the valve body 26 via a plunger pipe 27.
弁本体の弁室Ｒ４には前記ポー）Ａ、Ｂ、Ｃが開口し、
ボートＣの内端には弁座Ｃ′が形成されている。The ports A, B, and C are opened in the valve chamber R4 of the valve body,
A valve seat C' is formed at the inner end of the boat C.
プランジャ管２７にはプランジャ２９が設けられ、該プ
ランジャ２９の先端凹部２９ａ内においてボール弁体３
０が固定されていて該プランジ中２９の動作により弁室
Ｒ１内を移動し、プランジャ２９と吸引鉄心３１間に設
けられた圧縮ばね３２によりプランジャ２９乃至ボール
弁体３０は弁座Ｃ′を閉じる方向に常時付勢されている
。The plunger pipe 27 is provided with a plunger 29, and the ball valve body 3 is disposed within the tip recess 29a of the plunger 29.
0 is fixed and moves within the valve chamber R1 by the action of the plunger 29, and the plunger 29 to the ball valve body 30 close the valve seat C' by the compression spring 32 provided between the plunger 29 and the suction core 31. It is constantly biased in the direction.
第１図は冷房運転状態を示す。即ち、パイロット三方電
磁弁■２は無通電状態にあって、ボール弁体３０がボー
トＣを閉じているので、三方逆転弁ｖ１において、均圧
孔１２ａにより高圧室Ｒ。FIG. 1 shows the cooling operation state. That is, the pilot three-way solenoid valve (2) is in a non-energized state and the ball valve body 30 closes the boat C. Therefore, in the three-way reversing valve v1, the high pressure chamber R is opened by the pressure equalizing hole 12a.
と圧力変換室Ｒ２は同圧力となり、従ってピストン１２
はばね１３により連結杆１７の二叉状端部１７ａがシリ
ンダ１８に当接する迄押し動かされ、スライドバルブ１
６は通孔１１ａを通孔１１ｃに対して連通させるので、
冷媒は圧縮機４−吐出管５−導管７−室外熱交換器９−
絞り手段２３−室内熱交換器１〇−導管８−吸入管６−
圧縮機４の径路で循環する。and the pressure conversion chamber R2 have the same pressure, so the piston 12
The forked end 17a of the connecting rod 17 is pushed and moved by the spring 13 until it comes into contact with the cylinder 18, and the slide valve 1
6 communicates the through hole 11a with the through hole 11c, so
The refrigerant is transferred to the compressor 4 - discharge pipe 5 - conduit 7 - outdoor heat exchanger 9 -
Throttling means 23 - Indoor heat exchanger 1 - Conduit 8 - Suction pipe 6 -
It circulates in the path of the compressor 4.
次に、冷房運転を停止し、パイロット三方電磁弁ｖ２に
通電すると前記した如くにボール弁体３０がボートＣを
開いて圧力逃し口１４ａ、２５ａが圧縮機４の吸入側の
低圧に連通ずる。そして、この状態で圧縮機４を起動す
ると、圧力変換室Ｒ２、Ｒ３の高圧が圧縮機４の吸入側
へ流出を開始する。Next, when the cooling operation is stopped and the pilot three-way solenoid valve v2 is energized, the ball valve body 30 opens the boat C as described above, and the pressure relief ports 14a and 25a communicate with the low pressure on the suction side of the compressor 4. When the compressor 4 is started in this state, the high pressure in the pressure conversion chambers R2 and R3 starts flowing out to the suction side of the compressor 4.
この状態では、圧力変換室Ｒｔ、Ｒ３においては冷媒が
圧力逃し口１４ａ、２５ａより吸入側へ逃げると同時に
高圧室ＲＩより均圧孔１２ａ、１９ａを通って冷媒が供
給され、この際において圧力逃し口１４ａ、２５ａの径
が均圧孔１２ａ、１９ａの径よりも大であって冷媒の供
給量よりも排出量が大きいので、圧力変換室Ｒｚ、Ｒｓ
は高圧室Ｒ，よりも低圧となり、室Ｒ１とＲｔ、Ｒｔ間
には圧縮ばね１３．２０の弾力に打ち勝つ差圧が発生し
、ピストン１２乃至スライドバルブ１６は栓体３方向に
移動を開始する。同様にピストン１９乃至除霜用弁２１
が栓体２方向に移動する。In this state, in the pressure conversion chambers Rt and R3, the refrigerant escapes from the pressure relief ports 14a and 25a to the suction side, and at the same time, the refrigerant is supplied from the high pressure chamber RI through the pressure equalization holes 12a and 19a, and at this time, the pressure relief Since the diameters of the ports 14a and 25a are larger than the diameters of the pressure equalization holes 12a and 19a, and the amount of discharged refrigerant is larger than the amount of refrigerant supplied, the pressure conversion chambers Rz and Rs
has a lower pressure than the high pressure chamber R, and a pressure difference is generated between the chambers R1 and Rt, which overcomes the elasticity of the compression spring 13, 20, and the piston 12 to slide valve 16 start moving in the direction of the stopper body 3. . Similarly, the piston 19 to the defrosting valve 21
The stopper moves in two directions.
パイロット三方電磁弁■２に通電して約１分経過すると
、ピストン１２乃至スライドバルブ１６が通孔１１ａを
通孔１１ｂに対して連通させて、冷媒が圧縮機４−吐出
管５−導管８−室内熱交換器１〇−絞り手段２３−室外
熱交換器９−導管７−吸入管６−圧縮機４の径路で循環
する暖房運転に移行する（第２図）。When about 1 minute elapses after power is applied to the pilot three-way solenoid valve 2, the piston 12 to the slide valve 16 communicates the through hole 11a with the through hole 11b, and the refrigerant flows through the compressor 4, discharge pipe 5, conduit 8, and A heating operation is started in which the air circulates through the path of the indoor heat exchanger 10, the throttling means 23, the outdoor heat exchanger 9, the conduit 7, the suction pipe 6, and the compressor 4 (FIG. 2).
暖房運転状態に移行した段階において、バイロフト三方
電磁弁Ｖ！を無通電とし、ボートＣを弁閉する。この場
合において、スライドバルブ１６内外の圧力差等により
圧縮ばね１３を含めた圧力変換室Ｒ２例の圧力に打ち勝
ってピストン１２乃至スライドバルブ１６を固定する。At the stage of transitioning to heating operation state, the viroft three-way solenoid valve V! is de-energized and the valve of boat C is closed. In this case, the pressure difference between the inside and outside of the slide valve 16 overcomes the pressure in the pressure conversion chamber R2 including the compression spring 13, and fixes the piston 12 to the slide valve 16.
これに対し、ピストン１９乃至除霜用弁２１は第１図の
弁閉位置に戻る（第３図）。In contrast, the piston 19 to the defrosting valve 21 return to the valve closed position shown in FIG. 1 (FIG. 3).
暖房運転状態において、室外熱交換器９に霜が付着した
場合には、バイロフト三方電磁弁ｖ２に通電して前記し
た如くにボートＣを開き、スライドバルブ１６を固定し
たままで、除霜用弁２１を開弁じ、導管２４より室外熱
交換器９に高圧ガスを送って除霜を行なう。除霜の終了
を検知して、パイロット三方電磁弁■２への通電を断つ
と、除霜用弁２１は閉弁する（第４図）。If frost forms on the outdoor heat exchanger 9 during heating operation, the three-way solenoid valve V2 is energized to open the boat C as described above, and while the slide valve 16 remains fixed, the defrost valve is opened. 21 is opened and high pressure gas is sent to the outdoor heat exchanger 9 through the conduit 24 to defrost it. When the end of defrosting is detected and the power to the pilot three-way solenoid valve 2 is cut off, the defrosting valve 21 closes (FIG. 4).
光凱傅着来
本発明は上記した如くに、シリンダ状の逆転弁本体内を
ピストンにより高圧室と圧力変換室に区画し、高圧室に
圧縮機の吐出管に対する接続口と、圧縮機の吸入管に対
する接続口及び該接続口を挟んで室外と室内の２個の熱
交換器用導管に対する接続口とを設け、吸入管に対する
接続口から２個の熱交換器用導管に対する接続口にかけ
て一連の切換用弁シートを設け、切換用弁シートに摺接
するスライドパルプをピストンに連結し、ピストンに高
圧室と圧力変換室を連通させる均圧孔を形成し、ピスト
ンを高圧室方向に付勢するばねを設け、圧力変換室に対
し該均圧孔より大径の圧力逃し口を有していて圧縮機の
吸入側に連通ずる導管を接続し、高圧室内に室外熱交換
器にいたる別の導管に対する別の接続口を設け、他の圧
力変換室と高圧室との間においてばねにより高圧室方向
に付勢されるピストン部材とこれに連動して該別の接続
口を開閉する除霜用弁を設け、該他の圧力変換室に圧縮
機の吸入側に連通ずる導管を接続し、圧縮機の吸入側に
連通ずる上記２本の導管の間に三方電磁弁を介在させ、
該三方電磁弁の動作時において両方の圧力変換室を圧縮
機の吸入側に連通させるようにして成るものであるから
、暖房運転のままで室外熱交換器の除霜が出来、この際
において冷、暖切換用の電磁弁を用いて除霜用弁を作動
させることが出来るので、操作が容易であると共に機構
を簡略化することができる特長を有する。As described above, the present invention divides the cylindrical reversing valve body into a high pressure chamber and a pressure conversion chamber by a piston, and the high pressure chamber has a connection port for the discharge pipe of the compressor and a suction port for the compressor. A connection port for the pipe and a connection port for two heat exchanger conduits, an outdoor one and an indoor one, are provided across the connection port, and a series of switching ports is provided from the connection port for the suction pipe to the connection port for the two heat exchanger conduits. A valve seat is provided, a slide pulp that slides on the switching valve seat is connected to the piston, a pressure equalizing hole is formed in the piston to communicate the high pressure chamber and the pressure conversion chamber, and a spring is provided to bias the piston toward the high pressure chamber. , a conduit having a pressure relief port with a larger diameter than the pressure equalization hole and communicating with the suction side of the compressor is connected to the pressure conversion chamber, and another conduit connected to another conduit leading to the outdoor heat exchanger is connected to the high pressure chamber. A connection port is provided, and a piston member biased toward the high pressure chamber by a spring is provided between the other pressure conversion chamber and the high pressure chamber, and a defrosting valve that opens and closes the other connection port in conjunction with the piston member, A conduit communicating with the suction side of the compressor is connected to the other pressure conversion chamber, and a three-way solenoid valve is interposed between the two conduits communicating with the suction side of the compressor,
Since both pressure conversion chambers are connected to the suction side of the compressor when the three-way solenoid valve is in operation, the outdoor heat exchanger can be defrosted while the heating operation is still in progress, and at this time, the cooling Since the defrosting valve can be operated using the warm switching solenoid valve, it has the advantage of being easy to operate and having a simplified mechanism.
第１図は本発明の一実施例についての断面図、第２図乃
至第４図は同上の作動状態図、第５図は除霜用弁部分の
拡大断面図である。
■、・・・三方逆転弁、■！・・・三方電磁弁、ｌ・・
・逆転弁本体、４・・・圧縮機、５・・・吐出管、６・
・・吸入管、７．８・・・導管、９・・・室外熱交換器
、ｌＯ・・・室内熱交換器、１１・・・切換用弁シート
、１２・・・ピストン、１２ａ・・・均圧孔、１３・・
・圧縮ばね、１４・・・導管、１４ａ・・・圧力逃し孔
、１６・・・スライドバルブ、１９・・・ピストン部材
、２０・・・圧縮ばね、２１・・・除霜用弁、２４・・
・別の導管、Ｒ８・・・高圧室、Ｒユ、Ｒ３・・・圧力
変換室。
特許出願人 株式会社鷺宮製作所FIG. 1 is a sectional view of one embodiment of the present invention, FIGS. 2 to 4 are operating state diagrams of the same, and FIG. 5 is an enlarged sectional view of the defrosting valve portion. ■,...Three-way reversing valve, ■! ...Three-way solenoid valve, l...
・Reversing valve body, 4... Compressor, 5... Discharge pipe, 6...
... Suction pipe, 7.8... Conduit, 9... Outdoor heat exchanger, lO... Indoor heat exchanger, 11... Switching valve seat, 12... Piston, 12a... Equalizing pressure hole, 13...
- Compression spring, 14... Conduit, 14a... Pressure relief hole, 16... Slide valve, 19... Piston member, 20... Compression spring, 21... Defrosting valve, 24...・
・Another conduit, R8...high pressure chamber, Ryu, R3...pressure conversion chamber. Patent applicant: Saginomiya Seisakusho Co., Ltd.
Claims (1)
圧力変換室に区画し、高圧室に圧縮機の吐出管に対する
接続口と、圧縮機の吸入管に対する接続口及び該接続口
を挟んで室外と室内の２個の熱交換器用導管に対する接
続口とを設け、吸入管に対する接続口から２個の熱交換
器用導管に対する接続口にかけて一連の切換用弁シート
を設け、切換用弁シートに摺接するスライドバルブをピ
ストンに連結し、ピストンに高圧室と圧力変換室を連通
させる均圧孔を形成し、ピストンを高圧室方向に付勢す
るばねを設け、圧力変換室に対し該均圧孔より大径の圧
力逃し口を有していて圧縮機の吸入側に連通する導管を
接続し、高圧室内に室外熱交換器にいたる別の導管に対
する別の接続口を設け、他の圧力変換室と高圧室との間
においてばねにより高圧室方向に付勢されるピストン部
材とこれに連動して該別の接続口を開閉する除霜用弁を
設け、該他の圧力変換室に圧縮機の吸入側に連通する導
管を接続し、圧縮機の吸入側に連通する上記２本の導管
の間に三方電磁弁を介在させ、該三方電磁弁の動作時に
おいて両方の圧力変換室を圧縮機の吸入側に連通させる
ことを特徴とする可逆冷凍サイクル用五方逆転弁。The cylindrical reversing valve body is divided into a high pressure chamber and a pressure conversion chamber by a piston, and the high pressure chamber has a connection port for the discharge pipe of the compressor, a connection port for the suction pipe of the compressor, and a connection port between the outside and the outside. A series of switching valve seats are provided from the connection ports for the suction pipe to the connection ports for the two heat exchanger pipes, and a slide slides into sliding contact with the switching valve seats. A valve is connected to the piston, a pressure equalizing hole is formed in the piston that communicates the high pressure chamber and the pressure conversion chamber, a spring is provided to bias the piston toward the high pressure chamber, and a pressure equalizing hole with a larger diameter than the pressure equalizing hole is provided for the pressure conversion chamber. A conduit having a pressure relief port and communicating with the suction side of the compressor is connected, and another connection port is provided in the high pressure chamber to another conduit leading to the outdoor heat exchanger, and the other pressure conversion chamber and the high pressure chamber are connected. A piston member biased toward the high pressure chamber by a spring and a defrosting valve that opens and closes the other connection port in conjunction with the piston member are provided between the other pressure conversion chamber and the suction side of the compressor. A three-way solenoid valve is interposed between the two conduits communicating with the suction side of the compressor, and when the three-way solenoid valve is operated, both pressure conversion chambers are connected to the suction side of the compressor. A five-way reversing valve for a reversible refrigeration cycle, which is characterized by communicating with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62285524A JP2580210B2 (en) | 1987-11-13 | 1987-11-13 | Five-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62285524A JP2580210B2 (en) | 1987-11-13 | 1987-11-13 | Five-way reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01127868A true JPH01127868A (en) | 1989-05-19 |
| JP2580210B2 JP2580210B2 (en) | 1997-02-12 |
Family
ID=17692645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62285524A Expired - Lifetime JP2580210B2 (en) | 1987-11-13 | 1987-11-13 | Five-way reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2580210B2 (en) |
-
1987
- 1987-11-13 JP JP62285524A patent/JP2580210B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2580210B2 (en) | 1997-02-12 |
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