JPS6342217Y2 - - Google Patents
Info
- Publication number
- JPS6342217Y2 JPS6342217Y2 JP10416081U JP10416081U JPS6342217Y2 JP S6342217 Y2 JPS6342217 Y2 JP S6342217Y2 JP 10416081 U JP10416081 U JP 10416081U JP 10416081 U JP10416081 U JP 10416081U JP S6342217 Y2 JPS6342217 Y2 JP S6342217Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- rotor
- motor
- end receiving
- proportional control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910000897 Babbitt (metal) Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Magnetically Actuated Valves (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、ルームエアコンやカーエアコンなど
の冷凍サイクル中に用いられる電子制御膨張弁、
あるいは一般の産業分野でマイコンと組合せて使
用する比例制御弁に関するものである。[Detailed description of the invention] [Field of industrial application] This invention is an electronically controlled expansion valve used during the refrigeration cycle of room air conditioners, car air conditioners, etc.
Or it relates to a proportional control valve used in combination with a microcomputer in the general industrial field.
［従来の技術］
第１図に示すような弁本体１内に弁口２を設
け、この弁口部分に、モータの回転子と一体に形
成した針状弁３を臨ませ、モータへの通電制御に
より弁口と針状弁との隙間を変化させることによ
り流量制御するところの従来の比例制御弁におい
ては、弁軸４とモータの回転子６とを一体とな
し、弁軸４の先端に針状弁３を形成すると共に回
転子後部の弁軸におねじ７を形成し、弁軸の回転
子前方の軸受部５には軸受メタル８を配置し、後
方のおねじ７には、弁本体１にろう付けされた非
磁性材からなる回転子用ケース１３の後端に固定
されためねじ１０をねじ込み、該ケース外周の前
記モータの回転子６に対応する位置にはモータの
固定コイル９が設けられている。[Prior Art] A valve port 2 is provided in a valve body 1 as shown in FIG. In the conventional proportional control valve, which controls the flow rate by changing the gap between the valve opening and the needle valve, the valve shaft 4 and the rotor 6 of the motor are integrated, and the tip of the valve shaft 4 has a A needle valve 3 is formed, and a thread 7 is formed on the valve shaft at the rear of the rotor, a bearing metal 8 is placed on the bearing portion 5 of the valve shaft in front of the rotor, and a valve thread 7 is provided on the rear male thread 7. A female screw 10 fixed to the rear end of a rotor case 13 made of a non-magnetic material is brazed to the main body 1, and a fixed coil 9 of the motor is installed at a position corresponding to the rotor 6 of the motor on the outer periphery of the case. is provided.
したがつて、モータの固定コイル９に通電する
と回転子６が回転し、おねじ７とめねじ１０のね
じ作用によつて弁軸４が回転しながら軸方向へ移
動し、それにともなつて、弁口２と針状弁３の間
に形成される隙間が変化して流体の出入口１１，
１２間を流通する流体量が制御されるようになつ
ている。 Therefore, when the fixed coil 9 of the motor is energized, the rotor 6 rotates, and the valve shaft 4 rotates and moves in the axial direction due to the screw action of the male screw 7 and the female screw 10, and as a result, the valve shaft 4 rotates and moves in the axial direction. The gap formed between the mouth 2 and the needle valve 3 changes to open the fluid inlet/outlet 11,
The amount of fluid flowing between 12 is controlled.
［考案が解決しようとする課題］
このような弁軸と回転子との一体構成において
は、弁軸４の軸方向移動に伴い回転子６も同時に
移動するため、この軸方向移動に対応できるよう
に回転子６の軸方向寸法は固定コイル９の幅寸法
よりも大きくする必要がある他、ケーシングにお
いても回転子の前後に移動可能な空間を形成して
おく必要があるため、比例制御弁全体としての軸
方向寸法が長くなり、小型にできない欠点をもつ
ていた。[Problem to be solved by the invention] In such an integrated configuration of the valve shaft and rotor, the rotor 6 also moves simultaneously with the axial movement of the valve shaft 4, so a method is required to cope with this axial movement. In addition, the axial dimension of the rotor 6 needs to be larger than the width dimension of the fixed coil 9, and it is also necessary to form a space in the casing that can move forward and backward of the rotor, so the entire proportional control valve This has the drawback that the axial dimension is long, making it impossible to downsize.
［課題を解決するための手段］
本考案は上記のような欠点を除去したもので、
第２図に示すごとく、弁本体１内に弁口２を設
け、この弁口部分に弁軸と一体に形成した針状弁
３を臨ませ、モータへの通電制御により弁口と針
状弁３との隙間を変化させることにより流量制御
する比例制御弁において、弁軸４の先端部に針状
弁３を形成すると共に該弁軸の中間部分をおねじ
７に形成し、その後端の端受部５′を横断面Ｄ字
状またはスプライン状に形成し、中央のおねじ７
の部分に、中心にめねじを形成したモータの回転
子６をねじ込み、この回転子前方の軸受部５に軸
受メタル８をその一端が回転子の一側面に接する
ように配置し、後端の端受部５′には弁本体にろ
う付けされた非磁性体からなる回転子用ケース１
３の後端に固定された端受メタル１４をその一端
が回転子の一側面に接するように配置すると共に
該端受部が軸方向にのみ摺動可能に設け、このケ
ース外周の前記回転子６と対応する位置にモータ
の固定コイル９を設けた弁本体１内に弁口２を設
けたものである。[Means for solving the problem] The present invention eliminates the above-mentioned drawbacks.
As shown in FIG. 2, a valve port 2 is provided in the valve body 1, and a needle valve 3 formed integrally with the valve shaft is exposed to the valve port portion. In a proportional control valve that controls the flow rate by changing the gap between the valve stem 4 and the needle valve 3, the needle valve 3 is formed at the tip of the valve stem 4, and the middle part of the valve stem is formed with a male thread 7, and the rear end The receiving part 5' is formed into a D-shaped cross section or a spline shape, and the central male thread 7 is formed.
A motor rotor 6 with a female thread formed at the center is screwed into the part, and a bearing metal 8 is arranged in the bearing part 5 in front of the rotor so that one end is in contact with one side of the rotor. The rotor case 1 made of a non-magnetic material is brazed to the valve body at the end receiving part 5'.
An end receiving metal 14 fixed to the rear end of the case is arranged so that one end thereof contacts one side of the rotor, and the end receiving part is provided so as to be slidable only in the axial direction, and the rotor on the outer periphery of the case A valve port 2 is provided within a valve body 1 in which a fixed coil 9 of a motor is provided at a position corresponding to 6.
上記実施例における端受メタル１４と横断面Ｄ
字状の端受部５′の組合せは第２，３図に例示し
たごとく、端受部５′のＤ字状の平坦部に沿つて
端受メタルの側部からピン１５あるいはコツタを
打ち込んだことにより回転不能にして軸方向にの
み移動可能としている。又、別の実施例としては
端受メタル１４と端受部５′の横断面を第４図の
ごとくスプライン形状の組合せにして、両者の間
で回転が起らず、軸方向の摺動のみが可能なよう
にすることもできる。 End support metal 14 and cross section D in the above embodiment
The combination of the letter-shaped end receiving part 5' is made by driving a pin 15 or a kotsuta from the side of the end receiving metal along the D-shaped flat part of the end receiving part 5', as illustrated in Figures 2 and 3. This makes it impossible to rotate and allows movement only in the axial direction. In another embodiment, the cross sections of the end receiving metal 14 and the end receiving portion 5' are combined in a spline shape as shown in FIG. 4, so that no rotation occurs between the two and only axial sliding occurs. It can also be made possible.
さらに、弁軸４の一部の軸受部５と軸受メタル
８附近の気密構造としては、第５図に例示したよ
うに、Ｏリング１６を装着したり、第６図に例示
したようにベーロズ状シール機構１７を装着する
ことにより、おねじ７附近が被制御流体により汚
染されることを防止できる。 Furthermore, as an airtight structure near the bearing part 5 and the bearing metal 8 of a part of the valve shaft 4, an O-ring 16 may be installed as shown in FIG. By installing the seal mechanism 17, it is possible to prevent the vicinity of the male thread 7 from being contaminated by the fluid to be controlled.
［作用］
本考案においては、モータの固定コイル９に通
電すると、回転子６が回転する。回転子６は軸方
向へ移動できないように軸受メタル８および端受
メタル１４により拘束されているので、回転子６
中心のめねじとねじ結合されている弁軸４は軸方
向へ移動する。従つて、モータへの通電量を制御
することによつて弁口２と針状弁３の間の隙間が
制御されるようになつている。[Operation] In the present invention, when the fixed coil 9 of the motor is energized, the rotor 6 rotates. Since the rotor 6 is restrained by the bearing metal 8 and the end bearing metal 14 so that it cannot move in the axial direction, the rotor 6
The valve shaft 4, which is threadedly connected to the central internal thread, moves in the axial direction. Therefore, the gap between the valve port 2 and the needle valve 3 is controlled by controlling the amount of current applied to the motor.
［考案の効果］
本考案においては、上記のように回転子６の中
心部をめねじとし、これに弁軸のおねじ７をねじ
込むと共に、端受部５′と端受メタル１４との支
持状態を回転不能にして軸方向への摺動のみ可能
とし、モータの固定コイル９に対してモータの回
転子６がいつも同じ位置になるようにしているか
ら、比例制御弁の軸方向寸法を短縮することがで
き、従つて、製造原価を低減し、また据付上の制
限も少なくなるというように産業上の利用価値が
高いものである。[Effects of the Invention] In the present invention, as described above, the center of the rotor 6 is made female and the male thread 7 of the valve shaft is screwed into it, and the support state between the end receiving part 5' and the end receiving metal 14 is made non-rotatable and only allows sliding in the axial direction, so that the motor rotor 6 is always in the same position relative to the motor's fixed coil 9. This makes it possible to shorten the axial dimension of the proportional control valve, thereby reducing manufacturing costs and reducing installation restrictions, making it highly valuable in industry.
第１図は従来の比例制御弁の縦断側面図。第２
図は本考案の比例制御弁の縦断側面図。第３図は
第２図のＡ−Ａ切断部分図、第４図は第３図に対
応する他の実施例の部分図、第５図および第６図
は第２図中の軸受メタル部の詳細断面図。
１…弁本体、２…弁口、３…針状弁、４…弁
軸、５…軸受部、６…モータの回転子、７…おね
じ、８…軸受メタル、９…モータの固定コイル、
１０…めねじ、１１，１２…流体の出入口、１３
…ケース、１４…端受メタル、１５…ピン、１６
…Ｏリング、１７…ベローズ状シール機構。
FIG. 1 is a longitudinal sectional side view of a conventional proportional control valve. Second
The figure is a longitudinal side view of the proportional control valve of the present invention. Fig. 3 is a partial view taken along the line A-A in Fig. 2, Fig. 4 is a partial view of another embodiment corresponding to Fig. 3, and Figs. 5 and 6 are a partial view of the bearing metal part in Fig. 2. Detailed sectional view. 1...Valve body, 2...Valve port, 3...Needle valve, 4...Valve stem, 5...Bearing part, 6...Motor rotor, 7...Male thread, 8...Bearing metal, 9...Motor fixed coil,
10...Female thread, 11, 12...Fluid inlet/outlet, 13
...Case, 14...End holder metal, 15...Pin, 16
...O-ring, 17...Bellow-like seal mechanism.
Claims (1)
軸と一体に形成した針状弁３を臨ませ、モータへ
の通電制御により弁口と針状弁３との隙間を変化
させることにより流量制御する比例制御弁におい
て、弁軸４の先端部に針状弁３を形成すると共に
該弁軸の中間部分をおねじ７に形成し、その後端
の端受部５′を横断面Ｄ字状またはスプライン状
に形成し、中央のおねじ７の部分に、中心にめね
じを形成したモータの回転子６をねじ込み、この
回転子前方の軸受部５に軸受メタル８をその一端
が回転子の一側面に接するように配置し、後端の
端受部５′には弁本体にろう付けされた非磁性体
からなる回転子用ケース１３の後端に固定された
端受メタル１４をその一端が回転子の一側面に接
するように配置すると共に該端受部が軸方向にの
み摺動可能に設け、このケース外周の前記回転子
６と対応する位置にモータの固定コイル９を設け
たことを特徴とする比例制御弁。 A valve port 2 is provided in the valve body 1, and a needle valve 3 formed integrally with the valve shaft faces the valve port portion, and the gap between the valve port and the needle valve 3 is changed by controlling the power supply to the motor. In the proportional control valve for controlling the flow rate, a needle valve 3 is formed at the tip of a valve stem 4, the middle part of the valve stem is formed with a male thread 7, and the end receiving part 5' at the rear end has a cross section. A motor rotor 6 formed in a D-shape or spline shape and having a female thread at the center is screwed into the male thread 7 in the center, and a bearing metal 8 is attached to the bearing part 5 in front of the rotor with one end thereof. An end receiving metal 14 fixed to the rear end of the rotor case 13 made of a non-magnetic material and brazed to the valve body is disposed so as to be in contact with one side of the rotor, and the end receiving portion 5' at the rear end is made of a non-magnetic material and is brazed to the valve body. is arranged so that one end thereof is in contact with one side of the rotor, and the end receiving part is provided so as to be slidable only in the axial direction, and the fixed coil 9 of the motor is placed at a position corresponding to the rotor 6 on the outer periphery of the case. A proportional control valve characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10416081U JPS589577U (en) | 1981-07-13 | 1981-07-13 | proportional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10416081U JPS589577U (en) | 1981-07-13 | 1981-07-13 | proportional control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS589577U JPS589577U (en) | 1983-01-21 |
| JPS6342217Y2 true JPS6342217Y2 (en) | 1988-11-04 |
Family
ID=29898774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10416081U Granted JPS589577U (en) | 1981-07-13 | 1981-07-13 | proportional control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS589577U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2714815B2 (en) * | 1988-05-27 | 1998-02-16 | 株式会社芝浦製作所 | Flow control device |
| JP4544927B2 (en) * | 2004-07-15 | 2010-09-15 | 株式会社鷺宮製作所 | Electric control valve and refrigeration cycle equipment |
| JP5302517B2 (en) * | 2007-07-26 | 2013-10-02 | 株式会社不二工機 | Flow control valve |
| JP2020115017A (en) * | 2019-01-17 | 2020-07-30 | 株式会社鷺宮製作所 | Motor valve and refrigeration cycle system |
-
1981
- 1981-07-13 JP JP10416081U patent/JPS589577U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS589577U (en) | 1983-01-21 |
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