JPH06201229A - Refrigerant expansion mechanism having nonreturn function - Google Patents
Refrigerant expansion mechanism having nonreturn functionInfo
- Publication number
- JPH06201229A JPH06201229A JP5290367A JP29036793A JPH06201229A JP H06201229 A JPH06201229 A JP H06201229A JP 5290367 A JP5290367 A JP 5290367A JP 29036793 A JP29036793 A JP 29036793A JP H06201229 A JPH06201229 A JP H06201229A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- refrigerant
- expansion mechanism
- outdoor heat
- orifice
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/38—Expansion means; Dispositions thereof specially adapted for reversible cycles, e.g. bidirectional expansion restrictors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Check Valves (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷暖房兼用ヒートポン
プサイクルの冷媒膨張機構に関し、特に逆止機能を有す
る冷媒膨張機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant expansion mechanism for a heat pump cycle that is also used for cooling and heating, and more particularly to a refrigerant expansion mechanism having a check function.
【０００２】[0002]
【従来の技術】従来の冷暖房兼用ヒートポンプサイクル
は、図４に示すように、暖房用サイクルとして作動する
場合、冷媒の流れは点線方向のように、圧縮機１から吐
出された高圧冷媒が４方弁３、室内側熱交換器４、暖房
用膨張機構７を通過して低圧冷媒になって室外側熱交換
器５、４方弁３、アキュムレーター２を経て圧縮機１に
復帰する。2. Description of the Related Art In a conventional heat pump cycle for both heating and cooling, as shown in FIG. 4, when operating as a heating cycle, the flow of the refrigerant is in the direction of the dotted line, and the high pressure refrigerant discharged from the compressor 1 is in four directions. The low-pressure refrigerant passes through the valve 3, the indoor heat exchanger 4, and the heating expansion mechanism 7 to become a low-pressure refrigerant, and returns to the compressor 1 through the outdoor heat exchanger 5, the 4-way valve 3, and the accumulator 2.
【０００３】また冷房用サイクルとして作動する場合、
実線方向のように、圧縮機１から吐出された高圧冷媒が
４方弁３、室外側熱交換器５、冷房用膨張機構６、室内
側熱交換器４、４方弁３、アキュムレーター２を経て圧
縮機１に復帰する。When operating as a cooling cycle,
As indicated by the solid line, the high-pressure refrigerant discharged from the compressor 1 causes the four-way valve 3, the outdoor heat exchanger 5, the cooling expansion mechanism 6, the indoor heat exchanger 4, the four-way valve 3 and the accumulator 2 to flow. After that, it returns to the compressor 1.
【０００４】このように冷暖房兼用ヒートポンプではサ
イクル切換によって、冷媒の流れ方向が逆転されると、
一定面積式膨張機構は各々相異なる膨張能力を持ってい
るので図４に示すように冷房用膨張機構と暖房用膨張機
構とを区別して使用している。この時各膨張機構の前後
には冷媒流れ方向を一方向に決めて冷媒流れの逆流、バ
イパスを防止するために逆止バルブ８，９が設置されな
ければならない。In this way, in the heat pump for both heating and cooling, when the flow direction of the refrigerant is reversed by cycle switching,
Since the constant area type expansion mechanism has different expansion capacities, the cooling expansion mechanism and the heating expansion mechanism are used separately as shown in FIG. At this time, check valves 8 and 9 must be installed in front of and behind each expansion mechanism to prevent the refrigerant from flowing back and bypassing by deciding the refrigerant flow direction in one direction.
【０００５】[0005]
【発明が解決しようとする課題】このように従来の冷暖
房兼用ヒートポンプでは冷媒流の逆流、バイパスを防止
するために一定面積式冷媒膨張機構の前後に必ず逆止バ
ルブが設置されなければならないので、逆止バルブの設
置によって製造費用が上昇し、製造工程が複雑になる問
題点があった。As described above, in the conventional heat pump for both heating and cooling, a check valve must be installed before and after the constant area type refrigerant expansion mechanism in order to prevent backflow and bypass of the refrigerant flow. The installation of the check valve increases the manufacturing cost and complicates the manufacturing process.
【０００６】本発明の目的は別の逆止バルブを使用しな
くても冷媒流を一定方向に制御出来る冷暖房兼用ヒート
ポンプの冷媒膨張機構を提供することにある。本発明の
他の目的は構造が簡単で製造原価を低減出来る冷暖房兼
用ヒートポンプの冷媒膨張機構を提供することにある。An object of the present invention is to provide a refrigerant expansion mechanism for a heat pump for both cooling and heating, which can control the refrigerant flow in a fixed direction without using a separate check valve. Another object of the present invention is to provide a refrigerant expansion mechanism of a heat pump for both heating and cooling, which has a simple structure and can reduce the manufacturing cost.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明の冷暖房兼用ヒートポンプの冷媒膨張機構は室
外側熱交換器出口と、冷房モード時室外側熱交換器室内
出口の冷媒圧力より低い圧力の冷媒を収容し、暖房モー
ド時室外側熱交換器出口の冷媒圧力より高い圧力の冷媒
を収容する室内側熱交換器入口と、上記室外側熱交換器
出口と熱交換入口との間に位置された第１膨張機構と第
２膨張機構とを備える。In order to achieve the above object, the refrigerant expansion mechanism of the heat pump for cooling and heating of the present invention is lower than the refrigerant pressure at the outlet of the outdoor heat exchanger and at the outlet of the outdoor heat exchanger in the cooling mode. Between the indoor heat exchanger inlet that stores the refrigerant at a pressure and the refrigerant that has a higher pressure than the refrigerant pressure at the outdoor heat exchanger outlet during the heating mode, and between the outdoor heat exchanger outlet and the heat exchange inlet It is provided with the 1st expansion mechanism and the 2nd expansion mechanism which were located.
【０００８】第１膨張機構は室内側熱交換器入口と連通
された第１チャンバと、室外側熱交換器出口と第１チャ
ンバとを連通する第１オリフィスを有する第１チューブ
と、第１オリフィスと選択的に結合、分離されるように
移動可能で、暖房モード時第１オリフィスと結合される
ように力を受ける第１プラグとを有し、第２膨張機構は
室外側熱交換器出口と連通された第２チャンバと、室内
側熱交換器入口と第２チャンバとを連通する第２オリフ
ィスを有する第２チューブと、第２オリフィスと選択的
に結合、分離されるように移動可能で、冷房モード時第
２オリフィスと結合されるように力を受ける第２プラグ
とを有する。The first expansion mechanism has a first chamber communicating with the indoor heat exchanger inlet, a first tube having a first orifice communicating the outdoor heat exchanger outlet with the first chamber, and a first orifice. And a first plug that is movable so as to be selectively coupled and separated with a first orifice that receives a force to be coupled with the first orifice in the heating mode, and the second expansion mechanism is connected to the outdoor heat exchanger outlet. A second chamber communicating with the second tube, a second tube having a second orifice communicating with the indoor heat exchanger inlet and the second chamber, and movable so as to be selectively coupled and separated from the second orifice, A second plug that receives a force to be coupled with the second orifice in the cooling mode.
【０００９】[0009]
【実施例】本発明の冷暖房兼用ヒートポンプシステムは
図１に示すように、圧縮機１、４方弁３、室内側熱交換
器４、室外側熱交換器５及び冷媒膨張機構Ａとからな
る。上記冷媒膨張機構Ａは高圧冷媒を膨張させて低圧の
冷媒にして、冷媒の流れを所定方向に制御する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the heat pump system for both cooling and heating of the present invention comprises a compressor 1, a four-way valve 3, an indoor heat exchanger 4, an outdoor heat exchanger 5 and a refrigerant expansion mechanism A. The refrigerant expansion mechanism A expands the high-pressure refrigerant into a low-pressure refrigerant to control the flow of the refrigerant in a predetermined direction.
【００１０】冷房モード時、実線で示すように、圧縮機
１から吐出された高圧の冷媒が４方弁３を経由して室外
側熱交換器５、冷媒膨張機構Ａを通過して低圧の冷媒に
なって室内側熱交換器４、４方弁３、アキュムレーター
２を経由して圧縮機１に復帰することによって冷房サイ
クルが完成される。In the cooling mode, as shown by the solid line, the high-pressure refrigerant discharged from the compressor 1 passes through the four-way valve 3 and the outdoor heat exchanger 5 and the refrigerant expansion mechanism A, and the low-pressure refrigerant. The cooling cycle is completed by returning to the compressor 1 via the indoor heat exchanger 4, the 4-way valve 3, and the accumulator 2.
【００１１】暖房モード時、点線で示すように、圧縮機
１から吐出された高圧の冷媒が４方弁３を経由して室内
側熱交換器４、冷媒膨張機構Ａを通過して低圧の冷媒に
なって室外側熱交換器５、４方弁３、アキュムレーター
２を経由して圧縮機１に復帰することによって暖房サイ
クルが完成される。In the heating mode, as shown by the dotted line, the high-pressure refrigerant discharged from the compressor 1 passes through the four-way valve 3, the indoor heat exchanger 4 and the refrigerant expansion mechanism A, and the low-pressure refrigerant. Then, the heating cycle is completed by returning to the compressor 1 via the outdoor heat exchanger 5, the 4-way valve 3, and the accumulator 2.
【００１２】この時、冷媒膨張機構Ａは作動サイクルに
よって冷媒を一方向のみに流れるようにする逆止機能を
有しているので別の逆止バルブが要求されない。At this time, since the refrigerant expansion mechanism A has a check function for allowing the refrigerant to flow in only one direction in accordance with the operation cycle, another check valve is not required.
【００１３】上記冷媒膨張機構Ａは、図２及び図３に示
すように、冷房モード下時、室外側熱交換器５から相対
的に高圧の冷媒が流入される室外側熱交換器出口１００
と相対的に低圧の冷媒が流出される室内側熱交換器入口
２００とを有する。As shown in FIGS. 2 and 3, the refrigerant expansion mechanism A has an outdoor heat exchanger outlet 100 into which relatively high pressure refrigerant flows from the outdoor heat exchanger 5 in the cooling mode.
And an indoor heat exchanger inlet 200 through which a relatively low-pressure refrigerant flows out.
【００１４】上記室外側熱交換器出口１００と室内側熱
交換器入口２００との間に設置された第１膨張機構３０
０は、上記室内側熱交換器入口１００と連通された第１
チャンバ３１０と，上記室外側熱交換器出口１００と上
記チャンバ３１０とを連結する第１オリフィス３２１を
有する第１チューブ３２０とを有する。上記第１オリフ
ィス３２１は上記室外側熱交換器出口側に形成されたポ
ート３２２と上記室内側熱交換器入口側に形成させたポ
ート３２３とを有する。The first expansion mechanism 30 installed between the outdoor heat exchanger outlet 100 and the indoor heat exchanger inlet 200.
0 is the first communicating with the indoor heat exchanger inlet 100.
It has a chamber 310 and a first tube 320 having a first orifice 321 connecting the outdoor heat exchanger outlet 100 and the chamber 310. The first orifice 321 has a port 322 formed on the outlet side of the outdoor heat exchanger and a port 323 formed on the inlet side of the indoor heat exchanger.
【００１５】上記第１チャンバを形成する第１ケーシン
グ３５０は上記第１チューブ３２０とはねじ結合されて
いる。また上記第１オリフィス３２１を選択的に開閉す
る第１プラグ３３０が上記第１チャンバ内に設置され
る。The first casing 350 forming the first chamber is screwed to the first tube 320. A first plug 330 that selectively opens and closes the first orifice 321 is installed in the first chamber.
【００１６】上記第１プラグ３３０は、冷媒が室外側熱
交換器出口１００から室内側熱交換器入口２００に流れ
る冷媒の流動時には、上記オリフィス３２１の室内側熱
交換器入口ポート３２３を開放することによって、冷媒
が室外側熱交換器出口１００からチャンバ３１０に流れ
るようにし、冷媒流れが逆転される時には、上記第１オ
リフィス３２１の室内側熱交換器入口ポート３２３を閉
塞することによって上記室外側熱交換器出口１００と上
記チャンバ３１０との間の冷媒流れを遮断する。The first plug 330 opens the indoor heat exchanger inlet port 323 of the orifice 321 when the refrigerant flows from the outdoor heat exchanger outlet 100 to the indoor heat exchanger inlet 200. To allow the refrigerant to flow from the outdoor heat exchanger outlet 100 to the chamber 310, and when the refrigerant flow is reversed, the outdoor heat exchanger inlet port 323 of the first orifice 321 is closed to close the outdoor heat exchanger. The refrigerant flow between the exchanger outlet 100 and the chamber 310 is shut off.
【００１７】上記第１チャンバ内に設置された第１スプ
リング３４０は上記第１プラグ３３０が第１オリフィス
３２１の室内側熱交換器入口ポート３２３に結合される
ように上記第１プラグ３３０に所定の力を加えている。A first spring 340 installed in the first chamber is installed in the first plug 330 so that the first plug 330 is connected to the indoor heat exchanger inlet port 323 of the first orifice 321. I am applying force.
【００１８】かつ上記室外側熱交換器出口１００と室内
側熱交換器入口２００との間に位置されたもう一つの第
２膨張機構４００は、上記室外側熱交換器出口１００と
連通された第２チャンバ４１０と、上記室内側熱交換器
入口２００と上記第２チャンバ４１０とを連結する第２
オリフィス４２１とを有する第２チューブ４２０とを有
する。上記第２オリフィス４２１は上記室内側熱交換器
入口側に形成されたポート４２２と第２チャンバ側に形
成されたポート４２３とを有する。上記第２チャンバを
形成する第２ケーシング４５０は上記第２チューブ４２
０とはねじ結合されている。Further, another second expansion mechanism 400 located between the outdoor heat exchanger outlet 100 and the indoor heat exchanger inlet 200 is connected to the outdoor heat exchanger outlet 100. Two chambers 410 and a second chamber 410 for connecting the indoor heat exchanger inlet 200 and the second chamber 410
A second tube 420 having an orifice 421. The second orifice 421 has a port 422 formed on the indoor heat exchanger inlet side and a port 423 formed on the second chamber side. The second casing 450 that forms the second chamber is the second tube 42.
0 is screwed.
【００１９】また上記第２オリフィス４２１を選択的に
開閉する第２プラグ４３０が上記第２チャンバ内に設置
される。上記第２プラグ４３０は、冷媒の逆転流動時に
は上記第２オリフィス４２１の室外側熱交換器出口ポー
ト４２３を開放して冷媒が室内側熱交換器入口２００か
ら第２チャンバ４１０に流れるようにし、冷媒の正常流
動時には上記第２オリフィス４２１の室外側熱交換器出
口ポート４２３を閉塞して上記室内側熱交換器入口２０
０と第２チャンバ４１０との間の冷媒流れを遮断する。A second plug 430 that selectively opens and closes the second orifice 421 is installed in the second chamber. The second plug 430 opens the outdoor heat exchanger outlet port 423 of the second orifice 421 during reverse flow of the refrigerant to allow the refrigerant to flow from the indoor heat exchanger inlet 200 to the second chamber 410. During normal flow, the outdoor heat exchanger outlet port 423 of the second orifice 421 is closed to close the indoor heat exchanger inlet 20.
The refrigerant flow between 0 and the second chamber 410 is shut off.
【００２０】上記第２チャンバ内に設置された第２スプ
リング４４０は上記第２プラグ４３０が上記第２オリフ
ィス４２１の室外側熱交換器出口ポート４２３と結合さ
れるようにする方向に上記第２プラグ４３０を押圧して
いる。The second spring 440 installed in the second chamber is arranged so that the second plug 430 is connected to the outdoor heat exchanger outlet port 423 of the second orifice 421. 430 is pressed.
【００２１】上記構成の作用を説明する。冷房サイクル
が作動して、図２に示すように、圧縮機１から吐出され
た高圧冷媒が４方弁３、室外側熱交換器５を経て冷媒膨
張機構Ａに流入されると、第１スプリング３４０の力に
よって第１オリフィス３２１の室内側熱交換器入口ポー
ト３２３と結合されている第１プラグ３３０は高圧の室
外側熱交換器出口１００と低圧の室内側熱交換器入口２
００との間の圧力差によって第１スプリング３４０の力
を克服して第１オリフィス３２１の室内側熱交換器入口
ポート３２３と分離されることによって、高圧冷媒は第
１膨張機構３００の第１チューブ３２０の第１オリフィ
ス３２１を通じて第１チャンバ３１０に膨張しながら流
れ出して室内側熱交換器入口２００に流出される。The operation of the above configuration will be described. When the cooling cycle operates and the high-pressure refrigerant discharged from the compressor 1 flows into the refrigerant expansion mechanism A through the four-way valve 3 and the outdoor heat exchanger 5 as shown in FIG. The first plug 330, which is connected to the indoor heat exchanger inlet port 323 of the first orifice 321 by the force of 340, serves as a high pressure outdoor heat exchanger outlet 100 and a low pressure indoor heat exchanger inlet 2
00 due to the pressure difference between the first spring 340 and the indoor heat exchanger inlet port 323 of the first orifice 321 to separate the high pressure refrigerant from the first tube of the first expansion mechanism 300. It expands into the first chamber 310 through the first orifice 321 of 320 and then flows out to the indoor heat exchanger inlet 200.
【００２２】かつ第２膨張機構４００では、高圧の室外
側熱交換器出口１００と連通された第２チャンバ４１０
と低圧の室内側熱交換器入口２００との間の圧力差及び
第２スプリング４４０の力によって第２プラグ４３０が
第２チューブ４２０の第２オリフィス４２１の室外側熱
交換器出口ポート４２３と結合されていて第２チャンバ
４１０と室内側熱交換器入口２００との間の冷媒流れを
遮断している。In the second expansion mechanism 400, the second chamber 410 communicated with the high pressure outdoor heat exchanger outlet 100.
The second plug 430 is coupled to the outdoor heat exchanger outlet port 423 of the second orifice 421 of the second tube 420 by the pressure difference between the low pressure side indoor heat exchanger inlet 200 and the force of the second spring 440. Therefore, the refrigerant flow between the second chamber 410 and the indoor heat exchanger inlet 200 is shut off.
【００２３】かつ暖房サイクルが作動すると、図３に示
すように、圧縮機１から吐出された高圧冷媒が４方弁
３、室内側熱交換器４を経て冷媒膨張機構Ａに流入され
ると、第２膨張機構４００の第２チューブ４２０の第２
オリフィス４２１を通じて第２チャンバ４１０に膨張し
ながら流れ出して室外側熱交換器出口１００に流出され
る。When the heating cycle is activated, as shown in FIG. 3, when the high-pressure refrigerant discharged from the compressor 1 flows into the refrigerant expansion mechanism A through the four-way valve 3 and the indoor heat exchanger 4, Second of the second tube 420 of the second expansion mechanism 400
It flows out while expanding into the second chamber 410 through the orifice 421, and then flows out to the outdoor heat exchanger outlet 100.
【００２４】この時、第２スプリング４４０の力によっ
て第２オリフィス４２１の室外側熱交換器出口ポート４
２３と結合されている第２プラグ４３０は、高圧の室内
側熱交換器入口２００と低圧の室外側熱交換器出口１０
０との間の圧力差によって、第２スプリング４４０の力
を克服して第２オリフィス４２１の室外側熱交換器出口
ポート４２３と分離されることによって冷媒が室内側熱
交換器入口２００から第２オリフィス４２１を通じて第
２チャンバ４２１に流動出来るようになっている。At this time, the outdoor heat exchanger outlet port 4 of the second orifice 421 is urged by the force of the second spring 440.
The second plug 430, which is connected to the second heat exchanger 23, is connected to the high pressure indoor heat exchanger inlet 200 and the low pressure outdoor heat exchanger outlet 10.
The pressure difference between 0 and 0 overcomes the force of the second spring 440 and separates it from the outdoor heat exchanger outlet port 423 of the second orifice 421, so that the refrigerant flows from the indoor heat exchanger inlet 200 to the second side. The fluid can flow into the second chamber 421 through the orifice 421.
【００２５】かつ第１膨張機構３００では、高圧の室内
側熱交換器入口２００に連通された第１チャンバ３１０
と低圧の室外側熱交換器出口１００との間の圧力差及び
第１スプリング３４０の力によって第１プラグ３３０が
第１チューブ３２０の第１オリフィス３２１の室内側熱
交換器入口ポート３２３と結合されていて第１チャンバ
３１０と室外側熱交換器出口１００との間の冷媒流れを
遮断している。In the first expansion mechanism 300, the first chamber 310 communicated with the high pressure indoor heat exchanger inlet 200.
The first plug 330 is coupled to the indoor heat exchanger inlet port 323 of the first orifice 321 of the first tube 320 by the pressure difference between the low pressure and the outdoor heat exchanger outlet 100 of low pressure and the force of the first spring 340. In addition, the refrigerant flow between the first chamber 310 and the outdoor heat exchanger outlet 100 is shut off.
【００２６】結局、室外側熱交換器出口１００の冷媒圧
力が室内側熱交換器入口２００の冷媒圧力より高い冷房
サイクル時には、冷媒は室外側熱交換器出口１００から
第１膨張機構３００のみを通じて室内側熱交換器入口２
００に流れることが出来るし、第２膨張機構４００を通
じては流れない。室内側熱交換器入口２００の冷媒圧力
が室外側熱交換器出口１００の冷媒圧力より高い暖房サ
イクル時には、冷媒は室内側熱交換器入口２００から第
２膨張機構４００のみを通じて室外側熱交換器出口１０
０に流れることが出来るし、第１膨張機構３００を通じ
ては流れない。As a result, during the cooling cycle in which the refrigerant pressure at the outdoor heat exchanger outlet 100 is higher than the refrigerant pressure at the indoor heat exchanger inlet 200, the refrigerant flows from the outdoor heat exchanger outlet 100 through the first expansion mechanism 300 only. Inner heat exchanger inlet 2
00, but not through the second expansion mechanism 400. During a heating cycle in which the refrigerant pressure at the indoor heat exchanger inlet 200 is higher than the refrigerant pressure at the outdoor heat exchanger outlet 100, the refrigerant flows from the indoor heat exchanger inlet 200 only through the second expansion mechanism 400 to the outdoor heat exchanger outlet. 10
It can flow to zero and not through the first expansion mechanism 300.
【００２７】[0027]
【発明の効果】以上説明したように本発明によれば逆止
機能を有する冷媒膨張機構によって別の逆止バルブを使
用しなくても冷媒の流れを一定方向に制御出来る。従っ
て構造が簡単になって製造原価も低減出来る冷暖房兼用
のヒートポンプを構成することが出来る。As described above, according to the present invention, the flow of the refrigerant can be controlled in a fixed direction by using the refrigerant expansion mechanism having the check function without using another check valve. Therefore, it is possible to construct a heat pump for both heating and cooling, which has a simple structure and can reduce the manufacturing cost.
【図１】本発明による冷暖房兼用ヒートポンプサイクル
の構成図である。FIG. 1 is a configuration diagram of a heat pump cycle for both heating and cooling according to the present invention.
【図２】本発明による冷暖房兼用ヒートポンプの冷媒膨
張機構の冷房モード時を示す断面図である。FIG. 2 is a cross-sectional view showing the refrigerant expansion mechanism of the heat pump for cooling and heating according to the present invention in the cooling mode.
【図３】本発明による冷暖房兼用ヒートポンプの冷媒膨
張機構の暖房モード時を示す断面図である。FIG. 3 is a cross-sectional view showing the refrigerant expansion mechanism of the heat pump for cooling and heating according to the present invention in the heating mode.
【図４】従来の冷暖房兼用ヒートポンプサイクルの構成
図である。FIG. 4 is a configuration diagram of a conventional heat pump cycle for both heating and cooling.
１…圧縮機 ２…アキュムレーター ３…４方弁 ４…室内側熱交換器 ５…室外側熱交換器 Ａ…冷媒膨張機構 １００…室外側熱交換器出口 ２００…室内側熱交換器入口 ３００…第１膨張機構 ３１０…第１チャンバ ３２０…第１チューブ ３２１…第１オリフィス ３２２，４２３…室外側熱交換器出口ポート ３２３，４２２…室内側熱交換器入口ポート ３３０…第１プラグ ３４０…第１スプリング ３５０…第１ケーシング ４００…第２膨張機構 ４１０…第２チャンバ ４２０…第２チューブ ４２１…第２オリフィス ４３０…第２プラグ ４４０…第２スプリング ４５０…第２ケーシング 1 ... Compressor 2 ... Accumulator 3 ... 4-way valve 4 ... Indoor heat exchanger 5 ... Outdoor heat exchanger A ... Refrigerant expansion mechanism 100 ... Outdoor heat exchanger outlet 200 ... Indoor heat exchanger inlet 300 ... 1st expansion mechanism 310 ... 1st chamber 320 ... 1st tube 321 ... 1st orifice 322, 423 ... Outdoor heat exchanger outlet port 323, 422 ... Indoor heat exchanger inlet port 330 ... 1st plug 340 ... 1st Spring 350 ... 1st casing 400 ... 2nd expansion mechanism 410 ... 2nd chamber 420 ... 2nd tube 421 ... 2nd orifice 430 ... 2nd plug 440 ... 2nd spring 450 ... 2nd casing
Claims (3)
い圧力の冷媒を収容し、暖房モード時室外側熱交換器出
口の冷媒圧力より高い圧力の冷媒を収容する室内側熱交
換器入口と、 ｃ）上記室内側熱交換器入口と連通された第１チャン
バと、 上記室外側熱交換器出口と上記チャンバとを連通する
第１オリフィスを有する第１チューブと、 上記第１オリフィスと選択的に結合、分離されるよう
に移動可能で、暖房モード時、上記第１オリフィスと結
合されるように力を受ける第１プラグと、 を有しかつ上記室外側熱交換器出口と室内側熱交換器入
口との間に位置された第１膨張機構と、 ｄ）上記室外側熱交換器出口と連通された第２チャン
バと、 上記室内側熱交換器入口と上記第２チャンバとを連通
する第２オリフィスを有する第２チューブと、 上記第２オリフィスと選択的に結合、分離されるよう
に移動可能で、冷房モード時上記第２オリフィスと結合
されるように力を受ける第２プラグと、 を有しかつ上記室外側熱交換器出口と室内側熱交換器入
口との間に位置された第２膨張機構とからなることを特
徴とする逆止機能を有する冷媒膨張機構。1. A refrigerant pressure at the outlet of the outdoor heat exchanger in a) and b) a refrigerant having a pressure lower than the refrigerant pressure of the outlet of the outdoor heat exchanger in the cooling mode are contained, and the refrigerant pressure in the outlet of the outdoor heat exchanger in the heating mode An indoor heat exchanger inlet that accommodates a higher pressure refrigerant; c) a first chamber that communicates with the indoor heat exchanger inlet, and a first chamber that communicates the outdoor heat exchanger outlet with the chamber A first tube having an orifice, and a first plug movable so as to be selectively coupled and separated from the first orifice and receiving a force to be coupled to the first orifice in a heating mode, A first expansion mechanism having and located between the outdoor heat exchanger outlet and the indoor heat exchanger inlet; d) a second chamber in communication with the outdoor heat exchanger outlet; The inner heat exchanger inlet and the second chamber A second tube having a second orifice passing therethrough, and a second plug movable so as to be selectively coupled and separated from the second orifice, and receiving a force to be coupled with the second orifice in a cooling mode. And a second expansion mechanism positioned between the outdoor heat exchanger outlet and the indoor heat exchanger inlet, the refrigerant expansion mechanism having a check function.
と結合されるように上記第１プラグに所定の力を加える
第１弾性部材を有し、 上記第２膨張機構は、上記第２プラグが第２オリフィス
と結合されるように上記第２プラグに所定の力を加える
第２弾性部材を有することを特徴とする逆止機能を有す
る冷媒膨張機構。2. The first expansion mechanism according to claim 1, further comprising a first elastic member that applies a predetermined force to the first plug so that the first plug is connected to the first orifice. The second expansion mechanism includes a second elastic member that applies a predetermined force to the second plug so that the second plug is connected to the second orifice. The refrigerant expansion mechanism having a check function.
側熱交換器とへの冷媒流れを案内する４方弁と、 ｅ）上記第１膨張機構と、上記第２チューブとからなっ
て上記室外側熱交換器と室内側熱交換器との間に設置さ
れて作動サイクルによって選択的に冷媒を所定方向のみ
に流れるようにする冷媒膨張機構とからなることを特徴
とするヒートポンプシステム。3. A compressor, b) an outdoor heat exchanger, c) an indoor heat exchanger, d) the outdoor heat exchanger and an indoor heat exchanger selectively from the compressor. A four-way valve that guides the refrigerant flow to and from, and e) is installed between the outdoor heat exchanger and the indoor heat exchanger and consists of the first expansion mechanism and the second tube. A heat pump system, comprising: a refrigerant expansion mechanism that selectively allows the refrigerant to flow only in a predetermined direction according to a cycle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR22817/1992 | 1992-11-19 | ||
| KR92022817U KR950003045Y1 (en) | 1992-11-19 | 1992-11-19 | Capillary tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06201229A true JPH06201229A (en) | 1994-07-19 |
| JP3537849B2 JP3537849B2 (en) | 2004-06-14 |
Family
ID=19344285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29036793A Expired - Fee Related JP3537849B2 (en) | 1992-11-19 | 1993-11-19 | Refrigerant expansion mechanism with check function |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3537849B2 (en) |
| KR (1) | KR950003045Y1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002541311A (en) * | 1999-04-12 | 2002-12-03 | ビーピー ケミカルズ リミテッド | Gas phase olefin polymerization method and equipment |
| JP2008196832A (en) * | 2007-02-15 | 2008-08-28 | Mitsubishi Electric Corp | Expansion valve mechanism and passage switching device |
| WO2014173080A1 (en) * | 2013-04-27 | 2014-10-30 | 温岭市恒发空调部件有限公司 | Bidirectionally communicating expansion valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015159491A1 (en) | 2014-04-17 | 2015-10-22 | 株式会社鷺宮製作所 | Throttle device, and refrigeration cycle system including same |
-
1992
- 1992-11-19 KR KR92022817U patent/KR950003045Y1/en not_active IP Right Cessation
-
1993
- 1993-11-19 JP JP29036793A patent/JP3537849B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002541311A (en) * | 1999-04-12 | 2002-12-03 | ビーピー ケミカルズ リミテッド | Gas phase olefin polymerization method and equipment |
| JP2008196832A (en) * | 2007-02-15 | 2008-08-28 | Mitsubishi Electric Corp | Expansion valve mechanism and passage switching device |
| WO2014173080A1 (en) * | 2013-04-27 | 2014-10-30 | 温岭市恒发空调部件有限公司 | Bidirectionally communicating expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| KR950003045Y1 (en) | 1995-04-19 |
| KR940013147U (en) | 1994-06-22 |
| JP3537849B2 (en) | 2004-06-14 |
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