JPH01131380A - Motor expansion valve - Google Patents
Motor expansion valveInfo
- Publication number
- JPH01131380A JPH01131380A JP26184388A JP26184388A JPH01131380A JP H01131380 A JPH01131380 A JP H01131380A JP 26184388 A JP26184388 A JP 26184388A JP 26184388 A JP26184388 A JP 26184388A JP H01131380 A JPH01131380 A JP H01131380A
- Authority
- JP
- Japan
- Prior art keywords
- case
- motor
- lead wire
- expansion valve
- covering material
- 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
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は冷凍サイクルに使用される電動膨張弁に関する
。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an electric expansion valve used in a refrigeration cycle.
（ロ）従来の技術
実開昭５４−１４２８３４号公報（６６Ａ８３）には膨
張弁を収納する凹部と、膨張弁に接続される導管の案内
部とを夫々形成した可撓性の三部品よりなり、少なくと
も一部品に接着材を設け、該部品に他の部品を接着して
膨張弁を被覆したことを特徴とする膨張弁の断熱カバー
が開示されている。(b) The conventional technology disclosed in Japanese Unexamined Utility Model Publication No. 142834/1983 (66A83) consists of three flexible parts each forming a recess for accommodating an expansion valve and a guide section for a conduit connected to the expansion valve. discloses a heat insulating cover for an expansion valve, characterized in that at least one part is provided with an adhesive, and other parts are adhered to the part to cover the expansion valve.
（ハ）発明が解決しようとする課題
上記従来の技術によれば、膨張弁を被覆する際には接着
剤でもって可撓性の三部品を手作業で張り合わすために
、両部品の接着性に信頼がおけず、シール効果が万全と
な９得ず、又両部品間からキャピラリーチューブが外部
に延びるので、このキャピラリーチューブを挾む部分に
隙間が形成され、この隙間からカバー内に湿気が徐々に
入り、膨張弁の周囲に氷塊が形成されこの氷塊により膨
張弁に誤動作が発生するという課題が生じる他、キャピ
ラリーチューブに対して断熱カバーが何ら補強の作用を
なさない関係上、膨張弁の持ら運びの際や取付けの際、
キャピラリーチューブのみを持った場合には、膨張弁の
荷重がキャピラリーチューブの付は根に集中し、この付
は根からキャピラリーチューブが折れるという課題も生
じた。(c) Problems to be Solved by the Invention According to the above-mentioned conventional technology, when covering the expansion valve, the three flexible parts are manually pasted together with adhesive, so the adhesion of both parts is difficult. Since the capillary tube is not reliable and the sealing effect is not perfect, and since the capillary tube extends outside between the two parts, a gap is formed between the capillary tubes, and moisture can leak into the cover through this gap. The ice gradually enters the capillary tube, forming ice blocks around the expansion valve, which causes the problem of malfunction of the expansion valve.In addition, since the heat insulating cover does not have any reinforcing effect on the capillary tube, the expansion valve When transporting or installing,
When only the capillary tube was held, the load of the expansion valve was concentrated on the root of the capillary tube, which caused the problem that the capillary tube could break from the root.
本発明はステッピングモータを使用した電動膨張弁では
あるが、上記従来の技術に類する課題を解決することを
目的とする。Although the present invention is an electric expansion valve using a stepping motor, it is an object of the present invention to solve problems similar to those of the above-mentioned conventional technology.
（ニ）課題を解決するための手段
上記課題を解決するための手段として、本発明では、下
面にカバーを有するケース内に収納されるステッピング
モータ及びこのステッピングモータからケース上部を通
り外に延びてこのケースの側壁に沿うリードを備えたモ
ータ部と、前記ステッピングモータにて駆動される弁本
体と、ゴム又は樹脂等の絶縁材からなり、溶融状態で前
記ケースの周囲に配設されて硬化することにより前記ケ
ース及びリード線を被覆する被覆材とから電動膨張弁を
構成するようにした。(d) Means for Solving the Problems As a means for solving the above problems, the present invention provides a stepping motor that is housed in a case that has a cover on the bottom surface, and a stepper motor that extends outward from the stepping motor through the upper part of the case. It consists of a motor part equipped with a lead along the side wall of the case, a valve body driven by the stepping motor, and an insulating material such as rubber or resin, which is placed around the case in a molten state and hardened. As a result, an electric expansion valve is constructed from the case and the covering material covering the lead wire.
（ホ）作用
被覆材の硬化に伴ないモータ部と被覆材とが一体化きれ
てモータ部は被覆材にて覆われると共に、リード線の一
部が被覆材内に埋設される関係上、被覆材はモータ部及
びリード線に対する防水作用をなすと共に、リード線を
把握して電動膨張弁を持ら上げた際にリード線の付は根
に加わる電動膨張弁の荷重を分散し、且つリード線を引
っ張った際にリード線の付は根に加わる引っ張り応力を
緩和する作用をなす。(E) Function As the coating material hardens, the motor part and the coating material are not integrated, and the motor part is covered with the coating material, and a part of the lead wire is buried in the coating material. The material has a waterproof effect on the motor part and the lead wire, and the attachment of the lead wire disperses the load of the electric expansion valve that is applied to the root when grasping the lead wire and lifting the electric expansion valve. The attachment of the lead wire acts to relieve the tensile stress applied to the root when the root is pulled.
（へ）実施例 以下図面に基づいて本発明の詳細な説明する。(f) Example The present invention will be described in detail below based on the drawings.
・図中（１）は冷蔵庫、空気調和機等冷凍・空調機器の
冷凍サイクルに使用される電動膨張弁で、モータ部（２
）と該モータ部の下部に設けられた弁本体（３）とから
構成されている。前記モータ部（２）は箱状をなすアル
ミニウム製のケース（４）と、このケースの下面を察さ
ぐステンレス製のカバー（５）と、前記ケース（４）内
に収納され、パルス信号を与えられることにより駆動す
るステッピングモータ（６〉と、このステッピングモー
タのシャフト（７）に連結されたギア機構（８）と、前
記ステッピングモータ（６）からケース（４）の土壁（
４Ａ）を通ってケース（４）外に延びて前記ケース（４
）の側壁（４Ｂ）に沿い、図示しない制御器からの信号
線に接続される複数本、例えば６本のリード線（９）と
から構成されている。一方前記弁本体（３）は前記ギア
機構（８）に固着され、前記カバー（５）に取付けられ
たストッパー（１０）を貫通するスピンドル（１１〉と
、このスピンドルに連結され、ホルダー（１２〉と螺合
関係をなすスクリュー形のドライバー（１３）と、伸縮
自在なベローズ（１４）に吊下支持され、前記ドライバ
ー（１３）の下端と当接関係をなし、且つ下端にニード
ル部（１５）を備えた弁体（１６）と、前記ニードル部
（１５）が座着される弁座（１７）と、この弁座の上方
空間に形成される屈曲部（１８）と、この屈曲部に連通
ずるように夫々一端を接続きれた入口、出口両管（１９
）（２０）とから構成され、着脱可能なロックナツト（
２１）によりモータ部（２）に接続されている。・(1) in the diagram is an electric expansion valve used in the refrigeration cycle of refrigerators, air conditioners, etc.
) and a valve body (3) provided at the bottom of the motor section. The motor unit (2) is housed in a box-shaped aluminum case (4), a stainless steel cover (5) that covers the bottom surface of the case, and is housed within the case (4), and provides a pulse signal. a stepping motor (6) that is driven by
4A) and out of the case (4).
) along the side wall (4B), and is composed of a plurality of lead wires (9), for example, six lead wires, which are connected to signal lines from a controller (not shown). On the other hand, the valve body (3) is fixed to the gear mechanism (8) and has a spindle (11) that passes through a stopper (10) attached to the cover (5), and a holder (12) that is connected to this spindle. A screw-shaped driver (13) is in a threaded relationship with the screw driver (13), and a needle part (15) is suspended and supported by a telescopic bellows (14) and is in contact with the lower end of the driver (13). a valve body (16) provided with a valve body (16), a valve seat (17) on which the needle portion (15) is seated, a bent portion (18) formed in a space above the valve seat, and a bent portion (18) connected to the bent portion. Both inlet and outlet pipes (19
) (20), and a removable lock nut (
21) is connected to the motor section (2).
前記電動膨張弁（１）は制御器から送られてくるパルス
信号数に応じてステッピングモータ（６）が正又は逆回
転し、この回転運動がギア機構（８）、スピンドル＜１
１）、ドライバー（１３）の伝達機構によって往復直線
運動に変換されることにより、弁体く１６）を挿抜方向
に移動可能とし、弁体く１６）が弁座（１７）に座着す
る全開の位置から弁座（１７〉から離間してその上方に
位置する全開の位置迄の冷媒の流量制御機能、即ち減圧
機能及び開閉機能の双方を具備している。In the electric expansion valve (1), a stepping motor (6) rotates forward or backward depending on the number of pulse signals sent from the controller, and this rotational movement is caused by a gear mechanism (8) and a spindle <1
1) The transmission mechanism of the driver (13) converts the valve body (16) into a reciprocating linear motion, making it possible to move the valve body (16) in the insertion/extraction direction. It has a refrigerant flow control function from the position of the valve seat (17) to a fully open position located above the valve seat (17), that is, it has both a pressure reduction function and an opening/closing function.
（２２）は前記モータ部（２）を被覆するゴム又は樹脂
等の熱及び電気絶縁材からなる被覆材で、前記リード線
（９）の付は根（９Ａ）、この付は根から曲部（９Ｂ〉
を存して前記ケース（４〉の側壁（４Ｂ〉に沿う垂下部
（９Ｃ）をも被覆する側部（２３）を形成している。(22) is a covering material made of a thermal and electrical insulating material such as rubber or resin that covers the motor part (2), and the lead wire (9) is attached to a root (9A), which extends from the root to the curved part. (9B>
and forms a side portion (23) that also covers the hanging portion (9C) along the side wall (4B) of the case (4).
この被覆材（２２）でモータ部（２）を被覆することに
より、低温領域で使用されるモータ部（２）の断熱及び
助水両効果を向上できる。尚、前記リード線（９）はモ
ータ部（２）の下部にギア機構（８〉がある関係上、ケ
ース（４）の土壁（４Ａ）からケース外に引き出されて
いる。By covering the motor section (2) with this coating material (22), both the heat insulation and water support effects of the motor section (2) used in a low temperature region can be improved. The lead wire (9) is drawn out from the earthen wall (4A) of the case (4) because the gear mechanism (8> is located at the bottom of the motor section (2)).
次に前記モータ部（２）の被覆方法について説明する。Next, a method of covering the motor section (2) will be explained.
第４図乃至第６図に示す（２４）は内面に離型剤を塗布
した周壁（２５〉及び底壁（２６）からなり、上面を開
口した有底筒形の鋳造型で、前記周壁（２５）から底壁
（２６）にかけての一部には縦方向に長い膨田部（２７
）を形成して凹所（２８）の一部となる側路（２９）を
形成している。（３０）は前記周壁（２５）の内面及び
底壁（２６）の上面適所に跨がって形成され、前記凹所
（２８）内に突出する適数の階段状突起で、第５図鎖線
に示す如く前記モータ部（２）を凹所（２８）に収納し
た際には、ケース（４）の外面と前記周壁（２５）及び
底壁（２６）の内面との間に空間を形成するように前記
モータ部（２）を支持する。即ちこの各突起（３０）は
モータ部（２）の型当り部分となってこのモータ部（２
）を支持する作用及び空間を形成する間隔子の作用をな
すものである。尚、前記モータ部（２）には第３図に示
す如く前記突起（３０）と相対するケース（４）の上面
外端縁から周面上端縁に跨がる環状面に帯状に防錆塗装
が予じめ塗布きれ、塗装面（３１）として形成されてい
る。(24) shown in FIGS. 4 to 6 is a cylindrical casting mold with a bottom and an open top surface, consisting of a peripheral wall (25) whose inner surface is coated with a mold release agent and a bottom wall (26). There is a longitudinally long bulge (27) in a part from the bottom wall (25) to the bottom wall (26).
) to form a side channel (29) that becomes a part of the recess (28). (30) is an appropriate number of step-like protrusions formed across the inner surface of the peripheral wall (25) and the upper surface of the bottom wall (26) and protrudes into the recess (28); When the motor section (2) is housed in the recess (28) as shown in FIG. The motor section (2) is supported in this way. In other words, each protrusion (30) becomes a mold contact part of the motor part (2), and this motor part (2)
) and functions as a spacer to form a space. As shown in FIG. 3, the motor part (2) is coated with a band-shaped anti-rust coating on an annular surface extending from the outer edge of the upper surface of the case (4) facing the projection (30) to the upper edge of the circumferential surface. has been completely coated in advance and is formed as a painted surface (31).
前記モータ部（２）を鋳造型（２４）の凹所（２８〉に
収納する際には、先ずリード線（９）を結束啓せた状態
でケース（４）の周面に接着テープ等で取付けた後、モ
ータ部（２）を逆、即ち上面を下面とし、且つリード線
（９）を鋳造型（２４）の側路（２９）に対応させた状
態で凹所（２８）に収納し、前記モータ部（２）の塗装
面（３１）を各突起（３０）に載置する。この載置に伴
ない鋳造型（２４）の周壁（２５）及び底壁（２６）と
、凹所（２８）に収納されたモータ部（２）との間に空
間が形成され、か〜る状態で前記凹所（２８）内に形成
された空間に溶融状態のゴム又は樹脂の絶縁材を流し込
み、この絶縁材が硬化する冷却時間を経た後、鋳造型（
２４）からモータ部（２）を引き出すことにより、第１
図に示す如くモータ部（２）に溶着−体止され、且つこ
のモータ部及びリード線（９）を被覆する側部（２３）
を備えた被覆材（２２）が得られる。尚、前記塗装面（
３１）のうち各突起（３０〉に接した面は露呈面となる
。When storing the motor part (2) in the recess (28) of the casting mold (24), first wrap the lead wires (9) in a bundled state and wrap them around the case (4) with adhesive tape or the like. After installation, store the motor part (2) in the recess (28) with the top surface facing the bottom surface and the lead wire (9) corresponding to the side channel (29) of the casting mold (24). , the painted surface (31) of the motor part (2) is placed on each protrusion (30).As a result of this placement, the peripheral wall (25) and bottom wall (26) of the casting mold (24) and the recess are A space is formed between the motor part (2) housed in the recess (28), and in this state, a molten rubber or resin insulating material is poured into the space formed in the recess (28). , After a cooling period in which this insulation material hardens, the casting mold (
24) by pulling out the motor part (2) from the first
As shown in the figure, the side part (23) is welded to the motor part (2) and covers the motor part and the lead wire (9).
A covering material (22) is obtained. In addition, the painted surface (
31), the surface in contact with each protrusion (30>) becomes an exposed surface.
上記した電動膨張弁（１）の構成によれば、被覆材（２
３）は硬化することに伴ないモータ部（２〉に−体止さ
れ、且つリード線（９）の一部を埋設する関係上、モー
タ部（２）を覆うケース（４）とカバー（５）との接合
部分の防湿、防水効果が良好になると共に、リード線（
９）の付は根（９Ａ〉の防湿、防水効果も良くなり、こ
の結果、モータ部（２）内への湿気及び水の進入をなく
すことができる。According to the configuration of the electric expansion valve (1) described above, the covering material (2
3) is fixed to the motor part (2) as it hardens, and a part of the lead wire (9) is buried, so the case (4) and cover (5) covering the motor part (2) are removed. ), the moisture-proofing and waterproofing effect of the joint with the lead wire (
The moisture-proofing and waterproofing effect of the base (9A) is also improved, and as a result, it is possible to prevent moisture and water from entering the motor part (2).
又リード線（９）がケース（４）の上部から外に出され
てケース（４）の側壁（４Ｂ）に沿った状態で被覆材（
２３）内に埋設される関係上、リード線（９）に加わる
引っ張り応力は被覆材（２３）に分散されることになり
、この結果、リード線（９）の付は根（９Ａ）への引っ
張り応力を弱くすることができる。In addition, the lead wire (9) is taken out from the top of the case (4) and placed along the side wall (4B) of the case (4) when the covering material (
23), the tensile stress applied to the lead wire (9) is dispersed in the covering material (23), and as a result, the attachment of the lead wire (9) to the root (9A) is Tensile stress can be weakened.
（ト）発明の効果 上述した本発明では次の■■の効果が生じる。(g) Effects of the invention The present invention described above produces the following effects.
■被覆材は硬化することに伴ないモータ部に一体化され
、且つリード線の一部を埋設する関係上、モータ部を覆
うケースとカバーとの接合部分の防湿、防水効果が良好
になると共に、リード線の付は根の防湿、防水効果も良
くなり、この結果、モータ部内への湿気及び水分の進入
をなくすことができ、湿気、水分の進入が起因する故障
をなくすことができる。■As the coating material hardens, it is integrated into the motor section, and because some of the lead wires are buried, the moisture-proofing and waterproofing effects of the joint between the case and the cover covering the motor section are improved. The attachment of lead wires also improves the moisture-proofing and waterproofing effects of the roots, and as a result, it is possible to prevent moisture and moisture from entering the motor section, and it is possible to eliminate failures caused by moisture and moisture intrusion.
■ リード線（９〉がケースの上部から外に出されてケ
ースの側壁に沿った状態で被覆材内に埋設される関係上
、リード線に加わる引っ張り応力は被覆材に分散される
ことになり、この結果、リード線の付は根への引っ張り
応力を弱くすることができ、リード線付は根の破損を防
止できる。■ Because the lead wire (9) is brought out from the top of the case and buried in the sheathing material along the side wall of the case, the tensile stress applied to the lead wire is dispersed into the sheathing material. As a result, the attachment of lead wires can weaken the tensile stress on the roots, and the attachment of lead wires can prevent damage to the roots.
図面は何れも本発明の実施例を示し、第１図は被覆材が
形成された電動膨張弁の縦断面図、第２図は被覆材が形
成される前の電動膨張弁の全体斜視図、第３図はモータ
部の全体斜視図、第４図は鋳造型の平面図、第５図は第
４図のＡ−Ａ断面図、第６図は鋳造型の裏面斜視図であ
る。
（２）・・・モータ部、 （３）・・・弁本体、（４）
・・・ケース、 （９）・・・リード線、 （９Ａ）・
・・付は根、 （２２）・・・被覆部、 （２３）・・
・側部、 （２４〉・・・鋳造型、 （２５）・・・周
壁、 （２６〉・・・底壁、 （２８）・・・凹所、
（２９）・・・側路、 （３０）・・・突起、 （３１
）・・・塗装面。The drawings all show embodiments of the present invention; FIG. 1 is a longitudinal sectional view of an electric expansion valve with a covering material formed thereon, FIG. 2 is an overall perspective view of the electric expansion valve before the covering material is formed, FIG. 3 is an overall perspective view of the motor section, FIG. 4 is a plan view of the casting mold, FIG. 5 is a sectional view taken along line AA in FIG. 4, and FIG. 6 is a rear perspective view of the casting mold. (2)...Motor part, (3)...Valve body, (4)
...Case, (9)...Lead wire, (9A)
...Attachment is root, (22)...covering part, (23)...
・Side part, (24>...casting mold, (25)...peripheral wall, (26>...bottom wall, (28)...recess,
(29)...Sideway, (30)...Protrusion, (31
)...Painted surface.
Claims (2)
ピングモータ及びこのステッピングモータからケース上
部を通り外に延びてこのケースの側壁に沿うリードを備
えたモータ部と、前記ステッピングモータにて駆動され
る弁本体と、ゴム又は樹脂等の絶縁材からなり、溶融状
態で前記ケースの周囲に配設されて硬化することにより
前記ケース及びリード線を被覆する被覆材とからなる電
動膨張弁。1. A stepping motor housed in a case having a cover on the lower surface; a motor section having a lead extending from the stepping motor to the outside through the upper part of the case and along a side wall of the case; and a valve body driven by the stepping motor. and a covering material made of an insulating material such as rubber or resin, which is disposed around the case in a molten state and hardens to cover the case and lead wires.
む側部を形成してなる特許請求の範囲第１項記載の電動
膨張弁。2. 2. The electric expansion valve according to claim 1, wherein a portion of the covering material facing the lead wire is formed with a side portion that swells outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26184388A JPH01131380A (en) | 1988-10-17 | 1988-10-17 | Motor expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26184388A JPH01131380A (en) | 1988-10-17 | 1988-10-17 | Motor expansion valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5522886A Division JPS62215184A (en) | 1986-03-13 | 1986-03-13 | Shield method for electric expansion valve motor |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12111591A Division JPH04228983A (en) | 1991-05-27 | 1991-05-27 | Electric expansion valve |
| JP3121116A Division JP2538444B2 (en) | 1991-05-27 | 1991-05-27 | Case coating method for electric expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01131380A true JPH01131380A (en) | 1989-05-24 |
Family
ID=17367519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26184388A Pending JPH01131380A (en) | 1988-10-17 | 1988-10-17 | Motor expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01131380A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006014427A (en) * | 2004-06-23 | 2006-01-12 | Fuji Koki Corp | Motor for motor-operated valve |
| JP2007071216A (en) * | 2005-08-09 | 2007-03-22 | Smc Corp | Flow rate control valve |
| CN103453201A (en) * | 2012-06-04 | 2013-12-18 | 浙江三花股份有限公司 | Electronic expansion valve and assembling method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS497969U (en) * | 1972-04-19 | 1974-01-23 |
-
1988
- 1988-10-17 JP JP26184388A patent/JPH01131380A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS497969U (en) * | 1972-04-19 | 1974-01-23 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006014427A (en) * | 2004-06-23 | 2006-01-12 | Fuji Koki Corp | Motor for motor-operated valve |
| JP4536432B2 (en) * | 2004-06-23 | 2010-09-01 | 株式会社不二工機 | Electric valve motor |
| JP2007071216A (en) * | 2005-08-09 | 2007-03-22 | Smc Corp | Flow rate control valve |
| CN103453201A (en) * | 2012-06-04 | 2013-12-18 | 浙江三花股份有限公司 | Electronic expansion valve and assembling method |
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