JPS62196477A - Four-way valve for refrigerating cycle - Google Patents

Four-way valve for refrigerating cycle

Info

Publication number
JPS62196477A
JPS62196477A JP3794386A JP3794386A JPS62196477A JP S62196477 A JPS62196477 A JP S62196477A JP 3794386 A JP3794386 A JP 3794386A JP 3794386 A JP3794386 A JP 3794386A JP S62196477 A JPS62196477 A JP S62196477A
Authority
JP
Japan
Prior art keywords
plunger
valve
cylinder
electromagnetic coil
yoke
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.)
Pending
Application number
JP3794386A
Other languages
Japanese (ja)
Inventor
Tokinori Araki
荒木 時則
Masaharu Asada
朝田 正治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP3794386A priority Critical patent/JPS62196477A/en
Publication of JPS62196477A publication Critical patent/JPS62196477A/en
Pending legal-status Critical Current

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  • Multiple-Way Valves (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

PURPOSE:To increase effective magnetic flux for obtaining a large attraction force by constituting in such a way that the flux obtained by passing a current through an electromagnetic coil is passed only through a magnetic circuit formed by a plunger, a fixed iron core, and a yoke so as to prevent it from leaking to other parts. CONSTITUTION:A sliding valve 40 which slides in the axial direction inside a cylinder 33 having four conduit pipes 34, 37-39 to change over a refrigerant circuit is provided. And a plunger 43 connected to the sliding valve 40 and a cover 46 fitted in the one end of the cylinder 33 are provided, and on the center hole part 46a of the cover 46 a plunger guide 44 which houses the plunger 43 in its inside and is fitted with a fixed iron core 45 at its end is provided. Further, an electromagnetic coil 48 which drives the plunger 43 and is fixed on the outside of the plunger guide 44, and a yoke 49 which forms a magnet path outside the electromagnetic coil 48 are provided. And the whole constituting parts except the plunger 43, the fixed iron core 45, and the yoke 49 are all formed with non-magnetic materials.

Description

【発明の詳細な説明】 産業上の利用分野 2 へ、−5 本発明は冷凍サイクル、特にヒートポンプ型の空調機の
冷房・暖房の切換i/(’:用いる冷凍サイクル用四方
弁に関するものである。
Detailed Description of the Invention Industrial Application Field 2 -5 The present invention relates to a refrigeration cycle, particularly a four-way valve for a refrigeration cycle used for switching between cooling and heating in a heat pump type air conditioner i/(': .

従来の技術 近年、冷凍サイクル用四方弁は、空調機のヒートポンプ
化が進むにつわ、その需要は急増[2ており、低コスト
化、信頼性向上、小型化等の要求が強くなっている。
Conventional technology In recent years, the demand for four-way valves for refrigeration cycles has increased rapidly as air conditioners increasingly use heat pumps [2], and demands for lower costs, improved reliability, and smaller size have become stronger. .

以下図面を参照しながら、子連]2.た従来の冷凍サイ
クル用四方弁の一例(Cついて説明する。
Referring to the drawings below, the child series]2. An example of a conventional four-way valve for a refrigeration cycle (C will be explained below).

第4図は従来の冷凍ヴイクル用四方弁の断面図を示すも
のである。1は圧縮機、2はアキュムレータであり、四
方弁3を介して室内コイル4と膨張器5と室外コイル6
の環状回路と拶続され、周知のヒートポンプ式冷媒回路
を構成i7ている。四方弁3は、弁本体7とパイロット
バルブ8とで構成されており、弁本体7は2個のピスト
ン9,10により3つの空間11.12.13に分けら
れ、2個のピストン9,10は連結棒14で結ばれ同時
に第4図上で左右に移動する。連結棒14上に3  、
+−7 は摺動弁15が取り付けられており、ピストン9゜1o
が動けば前記摺動弁15が共に動く。ピストン9,1o
で挾まれた領域には4本の導管16゜17.18.19
が接続され、圧縮機1の吐出管16は常に空間12に連
通し、圧縮機1の吸入管17は摺動弁15とバルブシー
ト20にて形成される空間21に常に連通している。ま
た導管18゜19はそれぞれ室内コイル4及び室外コイ
ルらに接続されておシ、摺動弁15の位置よシ空間12
と連通したり空間21と連通したシする。ピストン9,
1oには圧力バランス孔22.23を設けている。次に
パイロットパルプ8の構造について説明する。パイロッ
トパルプ8内には2つの空間24.25が設けられ、ソ
レノイドコイル26によシ作動するニードルバルブ27
.28にて交互に閉塞される連通孔29を有している。
FIG. 4 shows a sectional view of a conventional four-way valve for refrigerated vehicles. 1 is a compressor, 2 is an accumulator, which connects an indoor coil 4, an expander 5, and an outdoor coil 6 via a four-way valve 3.
The refrigerant circuit is connected to the annular circuit of the refrigerant circuit, forming a well-known heat pump refrigerant circuit. The four-way valve 3 is composed of a valve body 7 and a pilot valve 8, and the valve body 7 is divided into three spaces 11, 12, 13 by two pistons 9, 10. are connected by a connecting rod 14 and simultaneously move left and right in FIG. 3 on the connecting rod 14,
+-7 is equipped with a sliding valve 15, and the piston is 9°1°
When the slide valve 15 moves, the sliding valve 15 also moves. Piston 9, 1o
There are four conduits in the area sandwiched by 16°17.18.19
are connected, the discharge pipe 16 of the compressor 1 is always in communication with the space 12, and the suction pipe 17 of the compressor 1 is always in communication with the space 21 formed by the slide valve 15 and the valve seat 20. In addition, the conduits 18 and 19 are connected to the indoor coil 4 and the outdoor coil, respectively, and are connected to the space 12 according to the position of the sliding valve 15.
It communicates with the space 21. piston 9,
1o is provided with pressure balance holes 22,23. Next, the structure of the pilot pulp 8 will be explained. Two spaces 24 and 25 are provided within the pilot pulp 8, and a needle valve 27 operated by a solenoid coil 26 is provided.
.. It has communication holes 29 which are alternately closed at 28.

第4図のニードルバルブ27.28はソレノイドコイル
26が通電された暖房運転状態を示している。30は前
記連通孔29と吸入管17とを連通ずる抽気管、31は
空間11と空間24を連通する抽気管、32は空間13
と空間26を連結する抽気管である。次に以上の構成に
てなる四方弁3の動作について説明する。
The needle valves 27 and 28 in FIG. 4 show a heating operation state in which the solenoid coil 26 is energized. 30 is an air bleed pipe that communicates the communication hole 29 and the suction pipe 17, 31 is an air bleed pipe that communicates the space 11 and space 24, and 32 is an air bleed pipe that communicates with the space 13.
This is an air bleed pipe that connects the space 26 and the space 26. Next, the operation of the four-way valve 3 having the above configuration will be explained.

第4図は暖房運転状態を示しており、各空間11゜12
.13,24.25の圧力は次の様になっている。圧縮
機1の吐出ガスにより空間12は高圧となり、ピストン
9,10に設けられた圧力バランス孔22,23を通じ
て空間11及び空間13を高圧圧力に保とうとする。と
ころがパイロットバルブ8内のニードルバルブ27が連
通孔29を閉じているため空間13は抽気管32.空間
25゜連通孔29及び抽気管30を介して吸入管17と
連通し低圧圧力となっている。従って空間11と空間1
3の間にはピストン9,10を介して圧力差を生じ、ピ
ストン9,1o及び摺動弁15が第4図の右方向に押し
つけられ所定の暖房運転状態を維持する。次に、暖房運
転が停止されるか、除霜運転が開始されるか、又は冷房
運転開始時にお、ける四方弁3の動作を説明する。上記
3つの運転状態においてはソレノイドコイル3は通電が
停止6 パー。
Figure 4 shows the heating operation state, with each space 11°12
.. 13, 24. The pressure of 25 is as follows. The space 12 becomes high pressure due to the gas discharged from the compressor 1, and an attempt is made to maintain the space 11 and the space 13 at a high pressure through the pressure balance holes 22, 23 provided in the pistons 9, 10. However, since the needle valve 27 in the pilot valve 8 closes the communication hole 29, the space 13 is closed to the bleed pipe 32. The space 25 communicates with the suction pipe 17 through the communication hole 29 and the bleed pipe 30, and is at low pressure. Therefore space 11 and space 1
3, a pressure difference is created through the pistons 9, 10, and the pistons 9, 1o and the sliding valve 15 are pressed rightward in FIG. 4 to maintain a predetermined heating operating state. Next, the operation of the four-way valve 3 when the heating operation is stopped, the defrosting operation is started, or the cooling operation is started will be described. In the above three operating states, the solenoid coil 3 is de-energized.

されている。そのためニードルバルブ27 、28は第
4図左方向に移動するため、ニードルバルブ28が連通
孔29を閉じ、抽気管、30は空間24と連通するよう
になる。従って暖房時に高圧圧力となっていた空間11
は抽気管31.空間24゜抽気管30を介して吸入管1
7と連通し急激に低圧圧力と々る。そのためピストン9
をへだてて空間12と空間11の間に圧力差が生じ、こ
の圧力差によってピストン9,10及び摺動弁16が第
4図の左方向に押しつけられる。従って吐出管16は導
管19と連通し、導管18は空間21を介して吸入管1
7と連通ずる。
has been done. Therefore, the needle valves 27 and 28 move to the left in FIG. 4, so that the needle valve 28 closes the communication hole 29 and the bleed pipe 30 comes to communicate with the space 24. Therefore, the space 11 was under high pressure during heating.
is the air bleed pipe 31. Space 24° Suction pipe 1 via bleed pipe 30
7 and the low pressure suddenly increases. Therefore piston 9
A pressure difference is created between the space 12 and the space 11, and this pressure difference forces the pistons 9, 10 and the sliding valve 16 to the left in FIG. The discharge pipe 16 thus communicates with the conduit 19 and the conduit 18 communicates with the suction pipe 1 via the space 21.
It communicates with 7.

発明が解決しようとする問題点 しかしながら上記の構成では、摺動弁15の駆動は冷媒
ガスの高低圧力差を用いて行うパイロット方式となって
いるために非常に多くの部品が必要となり、構造が複雑
で、組立工数も多くなる問題点を有していた。更に構造
中に、抽気管30゜31.32や圧力バランス孔22,
23、パイロットバルブ8の連通孔28.29等の微小
開口部6−′ 分が多いため、冷媒回路中の異物等により閉塞され、切
換作動不能となる恐れがある等、信頼性の面でも不安定
であるという問題点を有していた。
Problems to be Solved by the Invention However, in the above configuration, the sliding valve 15 is driven by a pilot method using the difference between high and low pressures of the refrigerant gas, so a large number of parts are required, and the structure is complicated. This has the problem of being complicated and requiring a large number of assembly steps. Furthermore, the structure includes air bleed pipes 30°31.32, pressure balance holes 22,
23. Since there are many minute openings 6-' such as the communication holes 28 and 29 of the pilot valve 8, there is a risk that the refrigerant circuit will be blocked by foreign objects, etc., and the switching operation will become impossible, resulting in problems in terms of reliability. It had the problem of stability.

一方、昨今のエアコン動向として四方弁切換時の高圧冷
媒と低圧冷媒の衝突による衝撃音をなくす目的で除霜前
後や冷房暖房切換時に圧縮機の運転を停止して高低圧力
差をなくした後に四方弁を切換える制御方式が主流化し
つつあることから切換時の高低圧力差が低減され、摺動
弁15の切換力が従来に比べて大巾に低減される傾向に
あわ、パイロット方式を採用し々くても、切換が可能な
方向に向かいつつある。
On the other hand, as a recent trend in air conditioners, in order to eliminate the impact noise caused by the collision between high-pressure refrigerant and low-pressure refrigerant when switching the four-way valve, compressor operation is stopped before and after defrosting or when switching between cooling and heating, and the four-way valve As the control method for switching valves is becoming mainstream, the difference in pressure between high and low pressures during switching is reduced, and the switching force of the slide valve 15 tends to be significantly reduced compared to the conventional method, so the pilot method is increasingly being adopted. However, we are moving towards a direction where switching is possible.

本発明は上記問題点と昨今のエアコンの動向による四方
弁の使われる環境変化に鑑み、パイロットバルブレス化
を図り、構造を簡素化し、組立作業性を向上させ、低コ
スト化を行うとともに切換作動の信頼性を向上させた冷
凍サイクル用四方弁を提供するものである。
In view of the above problems and the changes in the environment in which four-way valves are used due to recent trends in air conditioners, the present invention aims to eliminate the need for pilot valves, simplify the structure, improve assembly workability, reduce costs, and improve switching operation. The present invention provides a four-way valve for a refrigeration cycle with improved reliability.

問題点を解決するための手段 上記問題点を解決するために本発明の冷凍サイア クル用四方弁(パ;↓、4本の導管を有するシリンダ内
を軸方向に摺動し7て?″?i媒回路全回路える摺動弁
と、前it+2摺動弁を連結し5たプランジャと、前記
プランジ、■を内部に収納し端部に固定鉄心を装着した
プランジャガイドを中央の穴部に設けて前記シリンダの
一端に嵌合溶接された蓋と、前記プランジャガイドの外
側に固定的に取り伺けられ通電により前記シランジャを
駆動する電磁コイルと、前記電磁コイル外側の磁路を形
成するヨーりとを備え、前記のブランジーV、固定鉄心
、ヨークを除くすべての構成部品を1−べてJ[磁性月
別で構成しまたものである。
Means for Solving the Problems In order to solve the above problems, the four-way valve for refrigeration cycle of the present invention (Pa; ↓, sliding in the axial direction inside a cylinder having four conduits, A slide valve with a full medium circuit, a plunger connected to the front IT+2 slide valve, and a plunger guide with the plunger (1) housed inside and a fixed iron core attached to the end are provided in the central hole. A lid that is fitted and welded to one end of the cylinder, an electromagnetic coil that is fixedly attached to the outside of the plunger guide and that drives the syringe when energized, and a yaw that forms a magnetic path outside the electromagnetic coil. All components except the brunge V, fixed core, and yoke are constructed in a magnetic manner.

作  用 本発明は上記した構成によって、電磁コイルへの通電に
より得ら、#j2る磁束は、プランジャ、固定鉄心、ヨ
ークにより形成される磁気回路のみを通り、他への漏洩
を防止できるため、有効磁束が増大12大きな吸引力が
得られる。
Effect: With the above-described configuration, the magnetic flux #j2 obtained by energizing the electromagnetic coil passes only through the magnetic circuit formed by the plunger, fixed core, and yoke, and can prevent leakage to other parts. The effective magnetic flux increases 12 and a large attractive force can be obtained.

実施例 以下本発明の一実施例の冷凍ザイクル用四方弁について
図1h1を参照1〜ながら説明する。第1図及び第2図
は本発明の−・実施例における冷凍ライフル用四カ弁の
非通電qの断面図を示すものである。
EXAMPLE Hereinafter, a four-way valve for freezing cycles according to an example of the present invention will be described with reference to FIG. 1h1. 1 and 2 are cross-sectional views of a non-energized four valve q for a refrigerated rifle according to an embodiment of the present invention.

33−弁本体を形成するシリンダで側面に圧縮機の吐出
側に接続さiる叶出管34の導入[]34aが開[1さ
れている。、35は前記シリンダ33の一端に嵌合溶接
された蓋である。36は前記シリンダ33の内壁に固定
され反固定側にシー l−面36aを有するバルブシー
l−であり、前記シリンダ33の軸方向(/ζ3個の開
口部36b 、36c 、36dを並設している。前記
バルブシー川・36の中央の開「」部36bは、圧縮機
の吸入側に接続される吸入管37が接続される導出1−
1である。又前記導出口36bの両側の開「−1部36
c、36d、i、各々凝縮器又d蒸発器と15で可逆的
に機能する室外コイル、室内コイルに接続される第一、
第二の導管38.39が接続される第一、第二の通口で
ある3、40は前記バルブシート36のシート面36a
に当接してシールする摩擦係数の低い例えはフッ素樹脂
等の高摺動性材料より成るスライドシートす9 ・− ング41をその開日端−10aに固定すると共に内側に
流路を形成する四部4obを有する摺動弁である。42
は前記摺動弁40の外側面40cど前記シリンダ33の
内壁のl旧で介在した板バネであり、前記摺動弁40を
前Lバルブシート36Ml+へ附勢し2て常に前記スラ
イドシートリング41とバルブシート面36aとの接触
圧力を力えている。
33 - The introduction [34a] of the discharge pipe 34 connected to the discharge side of the compressor on the side in the cylinder forming the valve body is opened [1]. , 35 is a lid fitted and welded to one end of the cylinder 33. A valve seal 36 is fixed to the inner wall of the cylinder 33 and has a seal face 36a on the opposite side. The open part 36b in the center of the valve sear 36 is connected to the outlet 1- to which the suction pipe 37 connected to the suction side of the compressor is connected.
It is 1. Also, the openings on both sides of the outlet port 36b are
c, 36d, i, an outdoor coil functioning reversibly at 15 with a condenser or d evaporator, respectively; a first connected to an indoor coil;
The first and second ports 3 and 40 to which the second conduit 38 and 39 are connected are the seat surface 36a of the valve seat 36.
An example of a slide sheet with a low coefficient of friction that contacts and seals is a slide sheet made of a highly slidable material such as fluororesin. It is a sliding valve with 4ob. 42
is a leaf spring interposed between the outer surface 40c of the slide valve 40 and the inner wall of the cylinder 33, which biases the slide valve 40 toward the front L valve seat 36Ml+ so that the slide seat ring 41 always This applies contact pressure between the valve seat surface 36a and the valve seat surface 36a.

43に1[前記摺動弁40と連結されたプランジャであ
る。44は前記プランジャをその軸方向に゛摺動自在に
収納!−2一端に固定鉄心45を装着したプランジ4・
ガイドである。46は前記プランジャガイド44を中央
の穴部46 a (/′c設けて前記シリンダ33の一
端(て嵌合溶接された蓋である。47は前記プランジャ
43と前記固定鉄心45の間に介在する復帰用スプリン
グである。48は前記プランジャガイド44の外側に取
り付けられ通電により前記プランジャ43を前記固定鉄
心46に吸引させる電磁コイルである。49は前記電磁
コイル48の外側に設けられ前記プランジャ43及び前
記固定鉄心45と共に磁気回路を構成するヨークであ1
0 ベー。
43 to 1 [a plunger connected to the sliding valve 40]. 44 houses the plunger so that it can slide freely in its axial direction! -2 Plunge 4 with fixed iron core 45 attached to one end.
It is a guide. 46 is a lid to which the plunger guide 44 is fitted and welded to one end of the cylinder 33 with a central hole 46 a (/'c); 47 is a lid interposed between the plunger 43 and the fixed iron core 45; A return spring 48 is an electromagnetic coil that is attached to the outside of the plunger guide 44 and attracts the plunger 43 to the fixed iron core 46 when energized. 49 is an electromagnetic coil that is installed outside the electromagnetic coil 48 to attract the plunger 43 and the fixed iron core 46. 1 is a yoke that constitutes a magnetic circuit together with the fixed iron core 45.
0 b.

る。ことで、前記した各構成部品の内、磁気回路を構成
するため強磁性材料より成るプランジャ43、固定鉄心
45.ヨ・−・り49を除くずべての部品は銅系月別、
樹脂等の非磁性制料より構成されている。そして前記ス
ライドシートリング41の位置は、第1図、第2図図丁
の前記摺動弁40第一の位置(電磁コイル48無通電)
において前記導出口36bと第・−の通17136 c
を前記摺動弁40の内側凹部40bを流路として連通さ
ぜ、電磁コイル48への通電によりプランジャ43を吸
引した第二の位置(第3図)において前記導出1」36
bと第二の通口36dを連通させる如く設計されている
Ru. Therefore, among the above-mentioned components, the plunger 43 and the fixed iron core 45, which are made of ferromagnetic material to constitute the magnetic circuit, are included. All parts except Yo-ri 49 are copper based,
It is made of non-magnetic material such as resin. The position of the slide seat ring 41 is the first position of the slide valve 40 (electromagnetic coil 48 is not energized) as shown in FIGS. 1 and 2.
The outlet port 36b and the -th passage 17136c
are communicated with the inner recess 40b of the slide valve 40 as a flow path, and in the second position (FIG. 3) where the plunger 43 is attracted by energizing the electromagnetic coil 48, the derivation 1'' 36
b is designed to communicate with the second port 36d.

以上の様に構成された冷凍ザイクル用四方弁について以
下第1図から第3図を用いてその動作を説明する。第1
図、第2図は電磁コイル48に非通電時の態様を示l−
/辷ものでプランジャ43は復帰用スプリング47の作
用により図の左方に附勢されて、摺動弁40が蓋35に
当接して正寸る。
The operation of the four-way valve for freezing cycles constructed as described above will be explained below with reference to FIGS. 1 to 3. 1st
Figure 2 shows the state when the electromagnetic coil 48 is not energized.
/The plunger 43 is biased to the left in the figure by the action of the return spring 47, and the slide valve 40 comes into contact with the lid 35 and is adjusted to its proper size.

この結果、スライドシートリング41をシール面11 
・・ にしてスライドバルブ4Qの内側凹部4obを流路とし
て導出口36bと第一の通口36cが連通されると共に
、導入口34aと第二の通口36dもシリンダ33の内
部を通して連通される。従って冷媒ガスは、圧縮機→吐
出管34→第一の導管38→室外コイル→膨張弁→室内
コイル→第二の導管39−吸入管37−圧縮機の冷房サ
イクル回路あるいは除霜サイクル回路となる。
As a result, the slide seat ring 41 is
...The outlet port 36b and the first port 36c are communicated with each other through the inner recess 4ob of the slide valve 4Q as a flow path, and the inlet port 34a and the second port 36d are also communicated through the inside of the cylinder 33. . Therefore, the refrigerant gas flows through the compressor -> the discharge pipe 34 -> the first pipe 38 -> the outdoor coil -> the expansion valve -> the indoor coil -> the second pipe 39 - the suction pipe 37 - the cooling cycle circuit or the defrosting cycle circuit of the compressor. .

次に電磁コイル48を通電状態にすると(第3図)、プ
ランジャ43.固定鉄心45.ヨーク49により形成さ
れる磁気回路に磁束が通シブランジャ43は固定鉄心4
6i/i:吸引され当接して止ま、る。
Next, when the electromagnetic coil 48 is energized (FIG. 3), the plunger 43. Fixed core 45. The magnetic flux is passed through the magnetic circuit formed by the yoke 49. The plunger 43 is connected to the fixed iron core 4.
6i/i: It is attracted, comes into contact and stops.

この結果、摺動弁40の内側凹部40bより形成される
流路にて導出口36bと第二の通口36dが連通される
と共に、導入口34aと第一の通口36cもシリンダ3
3の内部を通して連通される。
As a result, the outlet port 36b and the second port 36d are communicated with each other through the flow path formed by the inner recess 40b of the slide valve 40, and the inlet port 34a and the first port 36c are also connected to the cylinder 3.
It is communicated through the inside of 3.

従って冷媒ガスは、圧縮機−吐出管34−第二の導管3
9→室内コイル→膨張弁→室外コイル→第一の導管38
−吸入管37−圧縮機の暖房サイクル回路となる。
Therefore, the refrigerant gas is transferred from the compressor to the discharge pipe 34 to the second conduit 3.
9 → Indoor coil → Expansion valve → Outdoor coil → First conduit 38
- Suction pipe 37 - serves as a heating cycle circuit for the compressor.

以」二の様に本実施例によれば、4本の導管34゜37
.38.39を有するシリンダ33内を軸方向に摺動し
て冷媒回路を切換える摺動弁4oと、前記摺動弁4oを
連結したプランジャ43と、前記プランジャ43を内部
に収納し端部に固定鉄心45を装着したプランジャガイ
ド44を中央穴部46aに設けて前記シリンダ33の一
端に嵌合溶接された蓋46と、前記プランジャガイド4
4の外側に固定的に取り付けられ通電により前記プラン
ジャ43を駆動する電磁コイル48と、前記電磁コイル
48外側の磁路を形成するヨーク49とを備え、前記プ
ランジャ43.固定鉄心45.ヨーク49を除くすべて
の構成部分をすべて非磁性材料で構成したことにより、
電磁コイル48への通電により得られる磁束はすべてプ
ランジャ43゜固定鉄心45.ヨーク49にて形成され
る磁気回路のみを通り他への磁気漏洩を防止できるため
、有効磁束が増大しより大きな吸引力が得られ、その結
果従来の如くパイロンしくルブを用いなくても弁切換を
行うことが可能となり、大幅な低コス13・・−。
According to this embodiment, four conduits 34°37
.. A slide valve 4o that slides in the axial direction inside the cylinder 33 having a diameter of 38.39 to switch the refrigerant circuit, a plunger 43 that connects the slide valve 4o, and the plunger 43 housed inside and fixed to the end. A plunger guide 44 equipped with an iron core 45 is provided in a central hole 46a, and a lid 46 is fitted and welded to one end of the cylinder 33;
4, and a yoke 49 that forms a magnetic path outside the electromagnetic coil 48. Fixed core 45. By constructing all the components except the yoke 49 from non-magnetic materials,
All the magnetic flux obtained by energizing the electromagnetic coil 48 is transferred to the plunger 43° and the fixed iron core 45. Since it is possible to prevent magnetic leakage to other parts through only the magnetic circuit formed by the yoke 49, the effective magnetic flux increases and a greater attraction force can be obtained, and as a result, the valve can be switched without using a pylon or a lubricant as in the past. It is now possible to do this at a significantly lower cost13...-.

ト化、コンパクト化2作動信頼性向上が図れるものであ
る。
This makes it possible to increase the size and size of the engine, and improve operational reliability.

発明の効果 以上の様に本発明は、弁本体を形成するシリンダと、前
記シリンダに接続された4本の冷媒通路用の導管と、前
記シリンダ内を軸方向に摺動して前記4本の導管により
構成される冷媒回路を切換える摺動弁と、前記摺動弁と
連結されるプランジャと、前記プランジャを内部に収納
しその端部に固定鉄心を装着したプランジャガイドを中
央の穴部に設けて前記シリンダの一端に嵌合溶接された
蓋と、前記プランジャガイドの外側に固定的に取り付け
られ通電により前記プランジャを駆動するりを除くすべ
ての構成部品をすべて非磁性材料で構成しているので、
電磁コイルへの通電により得られる磁束はすべてプラン
ジャ、固定鉄心、ヨークにて形成される磁気回路のみを
通り、他への磁気漏洩を防止できるため有効磁束が増大
し、より14ベー。
Effects of the Invention As described above, the present invention includes a cylinder forming a valve body, four conduits for refrigerant passages connected to the cylinder, and a conduit for the four refrigerant passages that slides in the cylinder in the axial direction. A slide valve for switching a refrigerant circuit constituted by a conduit, a plunger connected to the slide valve, and a plunger guide with the plunger housed inside and a fixed iron core attached to the end thereof are provided in the central hole. All the components are made of non-magnetic materials, except for the lid, which is fitted and welded to one end of the cylinder, and the part that is fixedly attached to the outside of the plunger guide and drives the plunger when energized. ,
All the magnetic flux obtained by energizing the electromagnetic coil passes only through the magnetic circuit formed by the plunger, fixed iron core, and yoke, preventing magnetic leakage to other parts, increasing the effective magnetic flux and increasing the magnetic flux by 14 bases.

犬き々吸引力が得られ、その結果従来の如くパイ・ロッ
トバルブを用いなくても弁切換を行うことが可能となり
、大幅な低コスト化、コンパクト化2作動信頼性が図れ
るものである。
A strong suction force can be obtained, and as a result, valve switching can be performed without using a pilot valve as in the past, resulting in significant cost reduction, compactness, and operational reliability.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例における冷凍サイクル用四方
弁の断面図、第2図は第1図のX −X線方向の断面図
、第3図は第1図の暖房状態を示す断面図、第4図は従
来の冷凍サイクル用四方弁の断面図である。 33・・・・・・シリンダ、34.37.38.39・
・・・・・4本の導管、4o・・・・・・摺動弁、43
・・・・・・プランジャ、44・・・・・・プランジャ
ガイド、45・・・・・・固定鉄心、46・・・・・・
蓋、48・・・・・・電磁コイル、49・・・・・・ヨ
ーク。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名NV
>     ’−) C′″ll     寸 減
FIG. 1 is a sectional view of a four-way valve for a refrigeration cycle according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line X-X in FIG. 1, and FIG. 3 is a sectional view showing the heating state in FIG. 1. FIG. 4 is a sectional view of a conventional four-way valve for a refrigeration cycle. 33...Cylinder, 34.37.38.39.
...4 conduits, 4o...sliding valve, 43
... Plunger, 44 ... Plunger guide, 45 ... Fixed iron core, 46 ...
Lid, 48... Electromagnetic coil, 49... Yoke. Name of agent: Patent attorney Toshio Nakao and one other NV
>'-)C'''ll Dimension

Claims (1)

【特許請求の範囲】[Claims] 弁本体を形成するシリンダと、前記シリンダに接続され
た4本の冷媒通路用の導管と、前記シリンダ内を軸方向
に摺動して前記4本の導管により構成される冷媒回路を
切換える摺動弁と、前記摺動弁と連結されるプランジャ
と、前記プランジャを内部に収納しその端部に固定鉄心
を装着したプランジャガイドを中央の穴部に設けて前記
シリンダの一端に嵌合溶接された蓋と、前記プランジャ
ガイドの外側に固定的に取り付けられ通電により前記プ
ランジャを駆動する電磁コイルと、前記電磁コイル外側
の磁路を形成するヨークとを備え、前記プランジャ、前
記固定鉄心、前記ヨークを除くすべての構成部品をすべ
て非磁性材料で構成したことを特徴とする冷凍サイクル
用四方弁。
A cylinder forming a valve body, four conduits for refrigerant passages connected to the cylinder, and a sliding member that slides in the cylinder in the axial direction to switch the refrigerant circuit constituted by the four conduits. A valve, a plunger connected to the sliding valve, and a plunger guide with the plunger housed inside and a fixed iron core attached to the end thereof are provided in a central hole and fitted and welded to one end of the cylinder. A lid, an electromagnetic coil that is fixedly attached to the outside of the plunger guide and drives the plunger when energized, and a yoke that forms a magnetic path outside the electromagnetic coil, and the plunger, the fixed core, and the yoke are connected to each other. A four-way valve for a refrigeration cycle, characterized in that all other components are made of non-magnetic materials.
JP3794386A 1986-02-21 1986-02-21 Four-way valve for refrigerating cycle Pending JPS62196477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3794386A JPS62196477A (en) 1986-02-21 1986-02-21 Four-way valve for refrigerating cycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3794386A JPS62196477A (en) 1986-02-21 1986-02-21 Four-way valve for refrigerating cycle

Publications (1)

Publication Number Publication Date
JPS62196477A true JPS62196477A (en) 1987-08-29

Family

ID=12511632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3794386A Pending JPS62196477A (en) 1986-02-21 1986-02-21 Four-way valve for refrigerating cycle

Country Status (1)

Country Link
JP (1) JPS62196477A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007023891A (en) * 2005-07-15 2007-02-01 Saginomiya Seisakusho Inc Compressor with flow passage change over valve and air conditioning device for cooling and heating
JP2009002383A (en) * 2007-06-19 2009-01-08 Takasago Electric Inc Slide type solenoid valve
WO2023195512A1 (en) * 2022-04-08 2023-10-12 株式会社鷺宮製作所 Slide-type switching valve and refrigeration cycle system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007023891A (en) * 2005-07-15 2007-02-01 Saginomiya Seisakusho Inc Compressor with flow passage change over valve and air conditioning device for cooling and heating
JP4541242B2 (en) * 2005-07-15 2010-09-08 株式会社鷺宮製作所 Compressor with flow path switching valve and air conditioner for air conditioning
JP2009002383A (en) * 2007-06-19 2009-01-08 Takasago Electric Inc Slide type solenoid valve
WO2023195512A1 (en) * 2022-04-08 2023-10-12 株式会社鷺宮製作所 Slide-type switching valve and refrigeration cycle system

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