CN106090263B - Motor-driven valve - Google Patents
Motor-driven valve Download PDFInfo
- Publication number
- CN106090263B CN106090263B CN201610274798.8A CN201610274798A CN106090263B CN 106090263 B CN106090263 B CN 106090263B CN 201610274798 A CN201610274798 A CN 201610274798A CN 106090263 B CN106090263 B CN 106090263B
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- guide member
- valve body
- mentioned
- 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.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 68
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 20
- 238000005476 soldering Methods 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 description 16
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010068051 Chimerism Diseases 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
Abstract
The present invention provides a kind of motor-driven valve, especially in the Large Electric valve of the effective use indoor pressure of back pressure, the spool guide member of the movement of guide spool is securely fixed with valve body, it is possible thereby to will be located in closed valve state reliably closed between the first chamber and back pressure chamber in the outside of spool.The rotary motion of rotor (4) is converted into moving along a straight line by the motor-driven valve (2), and make the spool being accommodated in the valve body for constituting valve chamber linear movement based on the linear motion, the motor-driven valve (2) is characterized in that, by way of fixed installation, it is integrated with the end face of upper opening side of valve body (30) to make spool guide member (72), or keeps spool guide member (72) integrated with the inner peripheral surface of valve body (30).
Description
Technical field
The present invention relates to the motor-driven valves used in refrigeration cycle etc..
Background technique
For the motor-driven valve used in large-scale cabinet air-conditioner, refrigeration machine, from will act as the multiple electronic of flow control
The background that valve is concentrated into one etc control equipment rationalization etc. is set out, and desired performance is in heavy caliber and to produce height
Also it can have good workability when pressure difference.
But for the motor-driven valve of bigger bore, for using magnet torque generate spiral thrust, by
Generated in differential pressure it is larger to the load of spool, exist influence spool workability a possibility that.
Thus, for example, in the motor-driven valve 1 of the patent document 1 shown in Figure 14, make tubular base station with the level 13 between receipts
Receiving has the dome-type shell 37 of rotor 31 and is formed between the tubular valve body 5 of valve chamber 7, also, from Figure 14 underneath towards
The stage portion for being formed in the inner face of the tubular base station 13 with the level is pressed into spool guide member 14, then guides with the spool
The outer peripheral surface installation seal member 38 for the spool 20 that the inner peripheral surface sliding of component 14 connects, using the seal member 38, in valve chamber 7
Upper side mark off back pressure chamber 29, by be set to spool 20 guiding path 24 to the back pressure chamber 29 import valve port in pressure,
The lower pressure that spool 20 is acted under closed valve state is eliminated using the pressure (back pressure) in back pressure chamber 29 (along the effect of valve closing direction
Power) He Shangding power (and along valve opening position effect power) pressure difference, to reduce the load to spool 20.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2013-130271 bulletin
Summary of the invention
Problems to be solved by the invention
But especially for large-scale cabinet air-conditioner, refrigeration machine motor-driven valve 1 in, in order to efficiently use back pressure chamber
Pressure in 29, under the closed valve state of Figure 14, it is necessary to be made using the seal member 38 being configured in spool guide member 14
It is reliably separated between the first chamber 22 and back pressure chamber 29 in the outside of spool 20.
However, in existing motor-driven valve 1, the spool guide member 14 that only vertically moves guide spool 20 by
In the hole with the level for entering tubular base station 13 with the level, therefore the positioning of the spool guide member 14 and unstable, there are valves
The danger that the central spindle of core guide member 14 and spool 20 can misplace, the leakproofness of spool guide member 14 and spool 20 is impaired.
It is assumed that if the central spindle of spool guide member 14 and spool 20 misplace, there are following danger: seal member 38 it is close
Envelope property is damaged, and generates pressure leakage being formed between the first chamber 22 in the outside of spool 20 and back pressure chamber 29, ties
Fruit significantly hinders the workability of spool 20.
In addition, for such a problem, even if in the case where not using back pressure, when the axis of spool guide member and spool
Core generates dislocation, also can significantly hinder workability.
Additionally, it is believed that in current motor-driven valve 1, tubular base station 13 with the level inner peripheral surface and be pressed into band step
Tubular base station 13 spool guide member 14 outer peripheral surface between be formed into the confined space of fluid reservoir.
Following situation is contemplated, in the case where the confined space as fluid reservoir is so formd in valve body 5,
Refrigerant is trapped in the confined space, and the refrigerant being detained is expanded according to temperature change, to make spool guide member
14 deformations, cause spool guide member 14 relative to the reduction of the concentricity of tubular base station 13 with the level, thus to spool 20
Action generate baneful influence.
The present invention is in view of such current practice, for the purpose of providing a kind of motor-driven valve, for example, in the motor-driven valve
In, the mobile spool guide member of guide spool is firmly secured to valve body, thus, it is possible in closed valve state reliably
Carry out be located at spool on the outside of first chamber and back pressure chamber between it is closed.
Become there is no be detained refrigerant according to temperature in valve body moreover, the purpose of the present invention is to provide a kind of
Change the motor-driven valve for a possibility that being expanded and deforming spool guide member.
Solution for solving the problem
Motor-driven valve of the invention for achieving the above object is the screw thread knot by externally threaded item and interior threaded part
It closes and is converted into moving along a straight line by the rotary motion of rotor, and the spool being accommodated in valve body is made based on the linear motion
The motor-driven valve moved in the axial direction, the motor-driven valve be characterized in that, matching in above-mentioned externally threaded item and above-mentioned interior threaded part
It is set to the screwed part for the side that cannot be relatively moved relative to above-mentioned valve body and guides the movement of above-mentioned spool in the axial direction
Spool guide member be made of separate part, also, by be fixedly mounted in the way of, make above-mentioned spool guide member with it is above-mentioned
The end face integration of the upper opening side of valve body, or make the inner peripheral surface of above-mentioned spool guide member and above-mentioned valve body one
Change.
Motor-driven valve of the invention according to this structure, if reliably carrying out spool guide member when assembling motor-driven valve
Positioning, then after the dislocation of central spindle will not be generated between spool guide member and spool.
In addition, the outer peripheral surface of the upper opening side of preferably above-mentioned spool guide member is locking in motor-driven valve of the invention
In the inner peripheral surface of above-mentioned valve body.
According to this structure, so that it may be easy to carry out positioning of the spool guide member relative to valve body.
Moreover, in motor-driven valve of the invention, preferably the upper opening side outer peripheral surface of above-mentioned spool guide member with it is upper
It states between the inner peripheral surface of upper opening side of valve body, is formed have the gap in the axial direction.
If being formed with such gap in axis direction, composition storage will not be formed between spool guide member and valve body
The confined space of liquid chamber.To be generated will not be as being formed with confined space the case where following uncomfortable: in the confined space
It is detained refrigerant, the refrigerant of delay is expanded according to temperature change and deforms spool guide member.
Moreover, if being formed with such gap in the axial direction on the outer peripheral surface of the upper opening side of spool guide member,
Then with the not formed gap herein the case where compared with, can reduce the contact area for being pressed into portion of spool guide member, it is possible thereby to
It reduces and is pressed into load between spool guide member and valve body.
Moreover, being preferably clamped between above-mentioned spool guide member and above-mentioned spool close in motor-driven valve of the invention
Seal component.
If being clamped with seal member as described above, in the closed valve state, the of the outside of spool can be will be formed in
It is reliably closed between one chamber and back pressure chamber.
It is thus possible to prevent the pressure leakage between above-mentioned first chamber and above-mentioned back pressure chamber.
In addition, the mode of preferably above-mentioned fixed installation is times in welding or soldering, bonding in motor-driven valve of the invention
It is a kind of.
According to this structure, easily operated, industrial manufacture can be carried out at low cost.
The effect of invention
Motor-driven valve according to the present invention can reliably guide the spool guide member of the movement of spool in the axial direction
Positioning and fixing relative to valve body.
In addition, the inner circumferential of the upper opening side by the outer peripheral surface and valve body in the upper opening side of spool guide member
Between face, gap is formed in the axial direction, can prevent from forming unready fluid reservoir between spool guide member and valve body.
In addition, can reduce the contact area in spool guide member and spool, as a result, by the way that such gap is arranged
Spool guide member can also be reduced is pressed into load.
Moreover, can will be located in closed valve state by making seal member between spool guide member and spool
It is reliably closed between the first chamber and back pressure chamber in the outside of spool.
In addition, motor-driven valve of the invention is easily operated, industrial manufacture can be carried out at low cost.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the motor-driven valve of the first embodiment of the present invention.
Fig. 2 is the major part enlarged cross-sectional view of first embodiment shown in FIG. 1.
Fig. 3 is the major part enlarged cross-sectional view of the motor-driven valve of the second embodiment of the present invention.
Fig. 4 is the major part enlarged cross-sectional view of the motor-driven valve of the third embodiment of the present invention.
Fig. 5 is the cross-sectional view for replacing other spool guide members of spool guide member shown in FIG. 1.
Fig. 6 is the cross-sectional view in C-C ' line direction in Fig. 5.
Fig. 7 is that the fourth embodiment of the present invention of other spool guide members shown in fig. 5 has been used to be equivalent to Fig. 2's
Figure.
Fig. 8 is the figure for showing the variation of other spool guide members described in Fig. 5 and Fig. 6, is comparable to the figure of Fig. 6.
Fig. 9 is the figure for being equivalent to Fig. 3 of the fifth embodiment of the present invention.
Figure 10 is the figure for being equivalent to Fig. 4 of the sixth embodiment of the present invention.
Figure 11 is the major part enlarged cross-sectional view of the seventh embodiment of the present invention.
Figure 12 is the major part enlarged cross-sectional view of the eighth embodiment of the present invention.
Figure 13 is the cross-sectional view of the motor-driven valve of the ninth embodiment of the present invention.
Figure 14 is the cross-sectional view of the existing motor-driven valve disclosed in Japanese Unexamined Patent Publication 2013-130271 bulletin.
In figure:
2-motor-driven valves, 4-rotors, 6-valve shaft framves, 6a-tubular small diameter portion, 6b-tubular large-diameter portion, 6c-fitting portion,
6d-internal screw thread, 6f-lip portions, 6g-upper opening portion, 6h-through hole, 11-valve chambers, the 12-the first pipe fitting, 14-
Spool guide member, 16-valve ports, the 15-the second pipe fitting, 17-spools, 17a-tapered portion, 17b-longitudinal direction hole portion, 17c-
Via hole, 18-valve guide parts, 18a-through hole, 21-tops, 26-first chambers, 27-valve springs, 28-back pressure chambers,
30-valve bodies, 30b-tapered portion, 33-sleeve members, the hemispherical abutting part of 35a-, 41-valve shafts, 41a-external screw thread,
41b-flange part, 48-seal members, 51-balancing orifices, 52-guide support bodies, 53-cylindrical portions, 54-umbrella portions, 56-
Valve opening stopper projection, 57-location holes, 58-raised piece, 59-Spiral guides, 60-shells, 62-limiting sections, 63-
Movable limiting component, 65-cartridge units, 67-rotor receiving rooms (the second back pressure chamber), 70-washers, 72-spool guide members,
72a-large-diameter portion, 72b-small diameter portion, 72c-lip portions, 72d-upper surface, 83-valve shaft frame rooms, 170-spools, 720-
Spool guide member, 720a-large-diameter portion, 720c-lip portions, 720d-outer peripheral surface, 730-spool guide members, 730a-
Large-diameter portion, 730d-outer peripheral surface, 740-spool guide members, 740a-large-diameter portion, 740d-outer peripheral surface, the guidance of 750-spools
Component, 750a-large-diameter portion, 750d-thinner wall section, A-thread binding, S-gap.
Specific embodiment
In the following, being illustrated referring to attached drawing to the preferred embodiment of the present invention (embodiment).
Fig. 1 is to show the cross-sectional view of the motor-driven valve 2 of the first embodiment of the present invention, and Fig. 2 is to put the major part of Fig. 1
The cross-sectional view shown after big.
In addition, being defined in the state of Fig. 1 "up" or "down" in the present specification.That is, rotor 4 is more than spool 17
It is located above.
In the motor-driven valve 2, in the lower end of the open side of the shell 60 of the cup-shaped for forming tubular by non magnetic system
Portion is connected with valve body 30 by welding etc..
Here, valve body 30 is the stamping product made by stainless steel plate by punch process, there is valve inside it
Room 11.On valve body 30, respectively by welding or soldering, bonding etc. be fixedly installed with directly be connected to valve chamber 11 it is made of copper
First pipe fitting 12 and the second pipe fitting 15 made of copper being connected to via valve port 16 with valve chamber 11.In addition, valve port 16 be not limited to as
It is formed directly into valve body 30 as shown in Figure 1.For example, it is also possible to the valve base part of valve port 16 is formd with the preparation of other components,
By other component assemblings in valve body 30.
It is accommodated with rotatable rotor 4 in the inner circumferential of shell 60, in the central spindle part of rotor 4, is matched via sleeve member 33
It is equipped with valve shaft 41.The valve shaft 41 and rotor 4 combined by sleeve member 33 is ined the up-down direction while rotating integrally to be moved
It is dynamic.In addition, the outer peripheral surface near the middle part of the valve shaft 41 is formed with external screw thread 41a.In the present embodiment, valve shaft 41 plays
The function of externally threaded item.
It is configured with the stator (not shown) being made of magnetic yoke, bobbin and coil etc. in the periphery of shell 60, by rotor 4
Stepper motor is constituted with stator.
Guide support body 52 is fixed in the top surface of shell 60.Guide support body 52 has cylindrical portion 53 and is formed in cylinder
The umbrella portion 54 of the upper end side in portion 53, and it is integrally formed entirely through punch process.Umbrella portion 54 is configured to the top with shell 60
Same shape on the inside of portion.
The cylindrical portion 53 of guide support body 52 be set as with 4 concentric of rotor from the center of top of shell 60 in axis side
It hangs down upwards.In addition, having location hole 57 the lower end of cylindrical portion 53 is stamping, there is raised piece in the inside of location hole 57
58。
In the cylindrical portion 53 of guide support body 52 in a manner of winding the periphery of the cylindrical portion 53, it is equipped with by flexible
Wire rod is formed as the Spiral guide 59 of coil spring shape.For Spiral guide 59, has in its lower end and prolong along axial direction
Long limiting section 62.
Valve opening stopper projection 56 of the Spiral guide 59 in upper end side with the midway for being formed in guide support body 52 supports
It connects, the limiting section 62 of lower end is inserted into limit hole 57 and is fitted into therewith, and the front end of limiting section 62 is due to the elastic force of Spiral guide 59
Encounter raised piece 58.
As a result, Spiral guide 59 be clipped in using axial spring-load valve opening stopper projection 56 and location hole 57 it
Between, without shaking it can determine installation site.
Spiral guide 59, which rotatably engages, movable limiting component 63.Movable limiting component 63 is formed as a circle spiral
Spring like.
Movable limiting component 63 according to the rotation of rotor 4 by revolution driving, to carry out rotation and by Spiral guide 59
It guides and carries out screw, along the axial movement of Spiral guide 59.Movable limiting component 63 encounters Spiral guide 59
Thus limiting section 62 stops above clockwise rotation advanced downward, and according to valve closing standard, mechanically setting turns
The origin position of son 4.In addition, movable limiting component 63 is connected to valve opening stopper projection 56, thus stop above towards upper
The rotation counterclockwise of Fang Hangjin, and mechanically set valve opening (standard-sized sheet) position.
The cartridge unit 65 having as the guide part of valve shaft 41 is fitted into the cylindrical portion 53 of guide support body 52.Cartridge unit 65
Raw material from lubriation material is added into metal or synthetic resin are constituted or by the metal being surface-treated or are synthesized
Resin part is constituted, and rotatably keeps valve shaft 41.
In the following, the major part to the present embodiment is illustrated.
As shown in after Fig. 2 amplification, in the upper end of the upper opening side of the lower end and valve body 30 of the open side of shell 60
The docking section B in portion is configured with the spool guide member 72 that guide spool 17 moves in the axial direction.
As described above, the spool guide member 72 that guide spool 17 moves in the axial direction is the cylinder of internal run-through, tool
There is the small of the lower section of the large-diameter portion 72a and large-diameter portion 72a of the lower section of the lip portions 72c, lip portions 72c that are located at topmost
Diameter portion 72b, and formed using stamping.In addition, the diameter shape of the periphery surface side of the large-diameter portion 72a of spool guide member 72
Diameter as the inner peripheral surface side than valve body 30 is slightly larger.That is, being sized in this way, it is pressed by spool guide member 72
In the case where in valve body 30, the large-diameter portion 72a of spool guide member 72 and the inner peripheral surface of valve body 30 can be made closely to block
It is fixed, to avoid spool guide member 72 mobile relative to valve body 30.In turn, spool guide member 72 is improved relative to valve body
30 alignment, as a result, can also be improved the controlling of spool 17.In addition, because spool guide member 72 is pushed into valve
In main body 30, thus will not wasting space, motor-driven valve can be minimized.
In this way, the lip portions 72c of spool guide member 72 is configured to shell 60 and valve body 30 as illustrated in fig. 2
After docking between end, the lower end of the open side of shell 60, the upper end of the open side of valve body 30 and spool guide portion
With the state one closed throughout complete cycle in such a way that welding or soldering, bonding etc. are fixedly mounted between the lip portions 72c of part 72
Change.
As described above the lower end of the open side of shell 60, valve body 30 open side upper end and spool guidance
It is fixed as one between the lip portions 72c of component 72, the positioning and fixing of spool guide member 72 is thus made to become firm.By
This can also misplace even if assuming to receive impact since then to avoid the central spindle of spool guide member 72.
In addition, being formed in the first chamber in the outside of spool 17 in the docking section B weld or be brazed, bond etc.
26, it and by spool 17 and valve shaft frame 6 is formed by reliably closed between back pressure chamber 28.
Closed structure in this way can prevent the pressure leakage between first chamber 26 and back pressure chamber 28.
The major part of the first embodiment of the present invention is illustrated above, in the following, to the lining combined with valve shaft 41
The structure for covering the lower section of component 33 is simply illustrated.
In the lower section of the sleeve member 33 of valve shaft 41, it cannot be fixed with valve shaft frame 6 with the relative rotation relative to valve body 30,
As described later, valve shaft frame 6 is constituted between valve shaft 41 is screwed A, and has and inhibit the inclined function of valve shaft 41.
Above-mentioned valve shaft frame 6 includes: the tubular small diameter portion 6a of upper side；The tubular large-diameter portion 6b of lower side；It is accommodated in valve master
The fitting portion 6c of the inner peripheral portion side of body 30；And annular ledges portion 6f.Moreover, the lip portions 6f of valve shaft frame 6 passes through welding or pricker
Weldering, bonding etc. are fixed on the upper surface of lip portions 72c of spool guide member 72.In addition, being formed with perforation in the inside of valve shaft frame 6
Hole 6h.
Tubular small diameter portion 6a, tubular large-diameter portion 6b and the fitting portion 6c of above-mentioned valve shaft frame 6 are preferably by synthetic resin, example
Such as, excellent polyphenylene sulfide of injection molding (Polyphenylenesulfide-PPS) etc. is integrally formed.On the other hand, it is arranged
It may be synthetic resin in the lip portions 6f of the fitting portion 6c of valve shaft frame 6, be made of metal, the metal in the case for this embodiment
The lip portions 6f of system is for example forming integrated by being embedded in the side fitting portion 6c of valve shaft frame 6.In addition, from the cylinder of the valve shaft frame 6
The upper opening portion 6g of shape small diameter portion 6a is formed with downward internal screw thread 6d to prescribed depth.
In addition, by the periphery for being formed in valve shaft 41 external screw thread 41a and be formed in the tubular small diameter portion 6a of valve shaft frame 6
The internal screw thread 6d in week, which is constituted, is screwed A.
It is equipped with balancing orifice 51 moreover, running through in the side of the tubular large-diameter portion 6B of valve shaft frame 6, the valve in tubular large-diameter portion 6b
It is connected between pedestal room 83 and rotor receiving room 67 (the second back pressure chamber) by the balancing orifice 51.Balancing orifice is set in this way
51, the space of the storage rotor 4 of shell 60 is connected to the space in valve shaft frame 6, so as to smoothly carry out valve shaft frame 6
Shift action.
In addition, the lower end side in valve shaft 41 is configured with the valve relative to the through hole 6h of valve shaft frame 6 tubular that can be slided
Guide part 18.21 side of top of the valve guide part 18 is substantially at right angles by stamping bending.In addition, 21 formation at the top of this
There is through hole 18a.
On the other hand, flange part 41b is formed in the lower end of valve shaft 41.
For the flange part 41b of the valve shaft 41, with clearance be fitted into state, can be rotated relative to valve guide part 18 and
In the through hole 18a that can be radially embedded in valve guide part 18 with displacement.In addition, compared with the through hole 18a of valve guide part 18,
Flange part 41b is major diameter, thus prevents valve shaft 41 from falling off.
Valve shaft 41 and valve guide part 18 are radial mutually removable, thus about valve shaft frame 6 and the allocation position of valve shaft 41,
Without extra high concentric installation accuracy, the proper alignment with valve guide part 18 and spool 17 can be obtained.
Washer 70 is provided between the top of valve guide part 18 21 and the flange part 41b of valve shaft 41.Washer 70 is preferably
The made of metal of the high slickness resin washers such as the made of metal washer on bloom slip surface, fluorine resin or bloom slip resinous coat
Washer etc..Through hole is formed in the central portion of washer 70.
Shaft portion positioned at the valve shaft 41 of the upper surface of washer 70 side can be revolved with clearance chimerism relative to valve guide part 18
Turn and is being penetrated through radially displaceablely.
Moreover, being accommodated with compressed valve spring 27 and spring bearing piece 35 in valve guide part 18.In addition, valve guide part 18
Lower end the base portion side outer peripheral surface of spool 17 is fixed on by welding or soldering, bonding etc..
On the other hand, in the spool of the present embodiment 17, in order to conduct valve port 16 to the upper side of spool 17 (back side)
The pressure of (in the second pipe fitting 15) is formed with longitudinal hole portion 17b with tapered portion 17a from lower end side towards upper end side, and
And lateral via hole 17c is formed in a manner of crosscutting hole portion 17b.
In addition, in the present embodiment, being equipped with longitudinal hole portion 17b and lateral via hole 17c in the inside of spool 17, leading to
The inside of the spool 17 is crossed by the pressure conduction of valve port 16 (in the second pipe fitting 15) to by spool guide member 72 and spool 17
The back pressure chamber 28 formed is divided, however the present invention is not limited to this.
For example, it is also possible to the valve body 30 for replacing canister portion wall thickness thin using the valve body formed by machining, at this
In the case that the wall thickness of the canister portion of valve body is formed as thicker, formed in the inside of the valve body of wall thickness rather than spool longitudinal logical
The access of the canister portion of valve body can will be arranged in as entrance hole, to the second pipe of the upper side (back side) of spool conduction in road
Pressure in connector 15.Furthermore, it is also possible in addition be arranged the pressure conduction of valve port 16 (in the second pipe fitting 15) to back pressure chamber
28 tube parts.
As described above, being not limited to the access that the upper side (back side) of spool conducts the pressure in the second pipe fitting 15
The inside of spool 17.
In the present embodiment, by (the second pipe fitting 15 of valve port 16 and forming lateral via hole 17c in spool 17
It is interior) pressure import back pressure chamber 28.
In addition, being clamped with seal member 48 between spool 17 and spool guide member 72.In the present embodiment, it uses
O-ring as a seal part 48, but the seal member 48 is at all not limited to O-ring.
The structure of the motor-driven valve of the first embodiment of the present invention 2 is illustrated above, below to the movement of motor-driven valve 2
It is illustrated.
For above-mentioned motor-driven valve 2, by applying drive pulse signal to stepper motor, rotor 4 is according to umber of pulse
It is rotated, valve shaft 41 rotates with, and passes through the internal screw thread 6d of the valve shaft frame 6 of the external screw thread 41a and fixed configurations by valve shaft 41
The thread binding A of composition, valve shaft 41 is ined the axial direction while rotating to be moved.
The rising of valve shaft 41 mobile (valve opening position is mobile) passes through spring bearing piece 35, flange part 41b, washer 70 and top
The abutting in portion 21, is transmitted to valve guide part 18, and valve guide part 18 and spool 17 carry out rising movement.
The decline of valve shaft 41 mobile (valve closing direction is mobile) passes through spring bearing piece 35, flange part 41b, washer 70, top
21 and valve spring 27 contact and be transmitted to valve guide part 18, valve guide part 18 and spool 17 carry out decline movement.
In addition, either in valve opening or valve closing, valve spring 27 in valve guide part 18 by with spring bearing piece 35
Engaging and as valve shaft 41 is rotated, and spring bearing piece 35 is rotated relative to the back side of spool 17, however because of spring
Bearing piece 35 is bloom slip resin system, and with hemispherical abutting part 35a and with flange part 41b substantially with the shape of point contact
State is abutted, so will not generate big frictional resistance between spring bearing piece 35 and flange part 41b, will not make valve spring
27 torsions.
In the motor-driven valve 2 of the present embodiment for carrying out valve closing movement as shown above, the lip portions of spool guide member 72
72c configures the opening side end face in valve body 30, to pass through the quilts such as welding within the scope of complete cycle with valve body 30 and shell 60
Integration, therefore in the case where only spool guide member 72 is pressed into and is fixed, the spool will not be made because not paying attention to
Guide member 72 is mobile, therefore central spindle will not be made to misplace.
In addition, in the motor-driven valve 2 of the present embodiment, spool 17 outer peripheral surface and spool guide member 72 inner peripheral surface it
Between be folded with seal member 48, can be by can between first chamber 26 and back pressure chamber 28 therefore in closed valve state shown in Fig. 1
It is sealed by ground, so as to prevent that pressure leakage occurs between first chamber 26 and back pressure chamber 28.
As described above, according to this embodiment, it can eliminating the lower pressure of the spool 20 acted under closed valve state (along valve closing
Direction effect power) He Shangding power (and along valve opening position effect power) pressure difference, it is possible thereby to reduce the load to spool 20.
The first embodiment of the present invention is illustrated above, but the present invention, which is at all not limited to above-mentioned first, to be implemented
Example.
For example, in the above-described first embodiment, making shell by welding in docking section B shown in amplification to such as in Fig. 2
It has carried out integrated example between body 60, valve body 30 and spool guide member 72 to be illustrated, but the present invention is not
It is limited to this.Fixed installation mode in the present invention is not limited to weld, or soldering, bonding etc..
In addition, in the above-described first embodiment, the lip portions 72c of spool guide member 72 is placed in the opening of valve body 30
On the end face of side, however, the present invention is not limited thereto, for example, second embodiment as shown in Figure 3, it can also be by spool guide member 72
Upper opening side end be shaped to from large-diameter portion 72a excision lip portions 72c shape, then by large-diameter portion 72a's
Upper surface 72d is configured to the midway of the cylindrical portion of valve body 30, and the upper surface 72d of large-diameter portion 72a is made to pass through welding in the position
Or mode is fixedly mounted for soldering, bonding etc. and the inner peripheral surface of valve body 30 is integrally melted into the state closed throughout complete cycle.
In addition, in this case, making the upper end of the lower end of the open side of shell 60 and the upper opening side of valve body 30
Integrated operation is carried out by welding or soldering, bonding etc. between portion to carry out by other process.
Furthermore, it is also possible to which the mode of 3rd embodiment according to Fig.4, makes spool guide member 72 and valve body 30 1
Body.
That is, opening the lower end of open side of shell 60 and the top of valve body 30 with by welding or soldering, bonding etc.
The case where integrated operation is different between the upper end of mouth side, 3rd embodiment described in Fig. 4 are, by spool guide member 72
The end face of large-diameter portion 72a docked with the lip portions 6f of valve shaft frame 6, it is fixed by welding or soldering, bonding etc. in this state
Mounting means will be fixed between below the end face of large-diameter portion 72a and lip portions 6f, thus make spool guide member 72 with
30 integration of valve body.In addition, in this case, the lip portions 6f and valve body 30 of certain valve shaft frame 6 by welding or soldering,
The mode integrally chemical conversion state closed throughout complete cycle is fixedly mounted in bonding etc..
Fig. 5 and Fig. 6 is to show the figure for the other spool guide members 720 for replacing spool guide member 72 shown in FIG. 1,
Fig. 6 is the cross-sectional view in C-C' line direction in Fig. 5.
For the spool guide member 720, large-diameter portion 720a not simple cylindrical shape has been alternatively formed straight line
Portion 720e and arc sections 720f.Straight line portion 720e can be arranged with arbitrary interval.
As shown in fig. 7, if the spool guide member 72 of Fig. 1 is replaced using such spool guide member 720, in valve master
It is (upper in Fig. 7 in axial direction between the inner peripheral surface 30a of the upper opening side of body 30 and the outer peripheral surface 720d of spool guide member 720
Lower direction) on form multiple gap S.In addition, in the present embodiment, these gaps S is equally spaced configured circumferentially.In addition,
It is made of at other positions of not formed gap S arc sections 720f, therefore in the position for being formed with these arc sections 720f, passes through
By spool guide member 720 by the outer peripheral surface 720d for making the large-diameter portion 720a of spool guide member 720 in valve body 30 and
It is close locking between the inner peripheral surface 30a of valve body 30.
As described above, as long as the large-diameter portion 720a for being configured to spool guide member 720 is not simple cylindrical shape, and alternately
Straight line portion 720e and arc sections 720f is formed, forms gap S in the axial direction between spool guide member 720 and valve body 30,
Then compared to not formed gap herein the case where, so that it may which the thus contact area for being pressed into portion for reducing spool guide member 720 may be used
Load is pressed between spool guide member 720 and valve body 30 to reduce.In addition, cylindrical shape is pressed into cylindrical shape
In the case of, without strictly carrying out for maintaining the size management appropriate for being pressed into load.Therefore, the deviation of size can be absorbed,
The span of control of the size of internal diameter of spool guide member 720, valve body 30 etc. can be expanded.
In addition, showing the example that the end inner peripheral surface in the upper opening side of valve body 30 is provided with tapered portion 30b in Fig. 7
Son, if but provided with such tapered portion 30b, can be easy for spool guide member 720 to be assembled into valve body 30.
In addition, as shown in fig. 7, if in the outer of the large-diameter portion side of the inner peripheral surface 30a and spool guide member 720 of valve body 30
It is formed in the axial direction between circumferential surface 720d and has the gap S, then in the outer peripheral surface 720d and valve body 30 of spool guide member 720
The confined space for constituting fluid reservoir is not will form between circumferential surface 30a.It therefore, can in the present embodiment for being axially formed gap S
To prevent the generation of following discomfort, for example, such as in the inner peripheral surface of the outer peripheral surface 720d of spool guide member 720 and valve body 30
The case where confined space is formed between 30a is the same, refrigerant is detained in the confined space, the refrigerant of delay is according to temperature
Variation is expanded and deforms spool guide member 720.
Alternatively, can also then large-diameter portion 750a a part excision be existed spool guide member 750 as shown in Figure 8
This setting thinner wall section 750d.Shape as Fig. 8 can also be in the inner peripheral surface 30a and spool guide member 750 of valve body 30
Gap S is formed between the outer peripheral surface of large-diameter portion 750a in the axial direction.In this case, it also can produce and the shown in Fig. 7 4th
Embodiment identical point effect.
I.e., it is possible to the generation of following discomfort is prevented, such as outer peripheral surface and valve body in the large-diameter portion of spool guide member 750
The case where being formed with confined space between 30 inner peripheral surface 30a is the same, and refrigerant, the refrigeration of delay are detained in the confined space
Agent is expanded according to temperature change and deforms spool guide member 750.
In addition, if the outer peripheral surface in the large-diameter portion 750a of spool guide member 750 forms have the gap S in the axial direction, phase
The case where than not formed gap herein, can reduce spool guide member 750 is pressed into the contact area in portion, it is possible thereby to reduce
Load is pressed between spool guide member 750 and valve body 30.
In addition, in fig. 8, keyway can be set also to replace thinner wall section 750d.Even if in the case where keyway is arranged,
Desired gap S can be formed in the axial direction.
Fig. 9 is the figure for being equivalent to Fig. 3 of the fifth embodiment of the present invention.In the 5th embodiment, with shown in Fig. 3
The case where two embodiments, is identical, by the large-diameter portion 730a of spool guide member 730 configuration in the midway of the cylindrical portion of valve body 30,
The inner peripheral surface of large-diameter portion 730a and valve body 30 is set to pass through the integrally chemical conversion time of the fixed forms such as welding or soldering, bonding in the position
And the state that complete cycle is closed.
In addition, being made and spool guide member 730 is pressed into valve body 30 at other positions of not formed gap S
It is close locking between the outer peripheral surface of the large-diameter portion 730a of spool guide member 730 and the inner peripheral surface 30a of valve body 30.
Even if such 5th embodiment, also with the above-mentioned fourth embodiment the case where in the same manner as valve body 30 inner peripheral surface
Gap S is formed in the axial direction between 30a and the outer peripheral surface 730d of spool guide member 730, therefore is reliably prevented from following
Uncomfortable generation, is detained refrigerant, the refrigerant of delay is expanded according to temperature change, so that spool be made to draw in confined space
Lead the deformation of component 730.
In addition, the inner peripheral surface 30a and spool guide member 730 of valve body 30 large-diameter portion 730a outer peripheral surface 730d it
Between, S is had the gap if being formed in the axial direction, compared with not formed gap herein, can reduce being pressed into for spool guide member 730
The contact area in portion is pressed into load between spool guide member 730 and valve body 30 it is possible thereby to reduce.
Figure 10 is the figure for being equivalent to Fig. 4 of the sixth embodiment of the present invention.In this embodiment, by spool guide member
The end face of 740 large-diameter portion 740a is docked with the lip portions 6f of valve shaft frame 6, is made the end face of large-diameter portion 740a in this state and is dashed forward
Pass through the fixed forms such as welding or soldering, bonding between below the 6f of edge and is integrally melted into the state closed throughout complete cycle.As a result,
Spool guide member 740 and 30 one chemical conversion of valve body can be made to spread the closed state of complete cycle.
In addition, being made and spool guide member 740 is pressed into valve body 30 at other positions of not formed gap S
It is close locking between the outer peripheral surface of the large-diameter portion 740a of spool guide member 740 and the inner peripheral surface 30a of valve body 30.
Even if such sixth embodiment, also with the above-mentioned fourth embodiment and five embodiments the case where in the same manner as in valve master
Form gap S between the inner peripheral surface 30a of body 30 and the outer peripheral surface 740d of spool guide member 740 in the axial direction, therefore can
Refrigerant is detained in the generation that following discomfort is prevented by ground in confined space, and the refrigerant of delay is expanded according to temperature change,
To make spool guide member 740 deform.
In addition, the inner peripheral surface 30a and spool guide member 740 of valve body 30 large-diameter portion 740a outer peripheral surface 740d it
Between, S is had the gap if being formed in the axial direction, compared with not formed gap herein, can reduce being pressed into for spool guide member 740
The contact area in portion is pressed into load between spool guide member 740 and valve body 30 it is possible thereby to reduce.
Figure 11 is the major part enlarged cross-sectional view for indicating the seventh embodiment of the present invention.7th embodiment draws spool
The lip portions 720c for leading component 720 is configured between shell 60 and the docking end of valve body 30.Then, make the opening of shell 60
Pass through weldering between the lower end of side, the upper end of the open side of valve body 30 and the lip portions 720c of spool guide member 720
The fixed forms integrally chemical conversion state closed throughout complete cycle such as connect or be brazed, bond.
In addition, being made and spool guide member 720 is pressed into valve body 30 at other positions of not formed gap S
It is close locking between the outer peripheral surface of the large-diameter portion 720a of spool guide member 720 and the inner peripheral surface 30a of valve body 30.
The difference of 7th embodiment and fourth embodiment shown in Fig. 7 is the lower end of shell 60 via valve shaft frame 6
Lip portions 6f and be configured on valve body 30.
It, can be with above-mentioned fourth embodiment, the 5th embodiment and sixth embodiment according to such 7th embodiment
Situation is similarly formed between the inner peripheral surface 30a of valve body 30 and the outer peripheral surface 720d of spool guide member 720 in the axial direction
Gap S, therefore it is reliably prevented from the generation of following discomfort, refrigerant, the refrigerant root of delay are detained in confined space
It is expanded according to temperature change, so that spool guide member 720 be made to deform.
In addition, being had the gap on the outer peripheral surface 720d of the large-diameter portion 720a of spool guide member 720 if being formed in the axial direction
S, then compared with not formed gap herein, can reduce spool guide member 720 is pressed into the contact area in portion, it is possible thereby to drop
Load is pressed between low spool guide member 720 and valve body 30.
Figure 12 is the major part enlarged cross-sectional view for indicating the eighth embodiment of the present invention.It, will in the 8th embodiment
The lip portions 6f configuration of valve shaft frame 6 the upper opening side of valve body 30 upper end slightly by radially inner side, and by shell 60
Lower end configuration the upper opening side of valve body 30 upper end.Then, make upper end and the spool guidance of valve body 30
Pass through the fixed forms such as welding or soldering, bonding between the lip portions 720c of component 720 and is integrally melted into the shape closed throughout complete cycle
State.In addition, will between the lower end of the open side of shell 60 and the upper end of the open side of valve body 30 by welding or soldering,
Integrally chemical conversion spreads the closed state of complete cycle to the fixed forms such as bonding.
Even if being such 8th embodiment, can also be with above-mentioned fourth embodiment~seven embodiment the case where in the same manner as
The shape in the axial direction between the outer peripheral surface 720d of the large-diameter portion 720a of the inner peripheral surface 30a and spool guide member 720 of valve body 30
At biggish gap S, therefore it is reliably prevented from the generation of following discomfort, refrigerant is detained in confined space, delay
Refrigerant is expanded according to temperature change, so that spool guide member 720 be made to deform.
In addition, the outer peripheral surface 720d of the large-diameter portion 720a in the inner peripheral surface 30a and spool guide member 720 of valve body 30
On, S is had the gap if being formed in the axial direction, compared with not formed gap herein, can reduce being pressed into for spool guide member 720
The contact area in portion is pressed into load between spool guide member 720 and valve body 30 it is possible thereby to reduce.
As described above, in the present invention, as long as in the inner peripheral surface of valve body and the large-diameter portion of spool guide member
Outer peripheral surface between, in the axial direction formed gap S shape, even if spool guide member be other shapes not by a bit shadow
It rings.It is however preferred to which the shape of multiple gap S is arranged in the circumferential.
In addition, the present invention is not limited to the motor-driven valves of first embodiment as shown in Figure 1, and the electronic of back pressure chamber 28 to be arranged like that
Valve can also be applied to the motor-driven valve of not set back pressure chamber.
In addition, forming the spool guide member of thinner wall section 750d after a part excision shown in Fig. 8 by large-diameter portion 750a
750 also can be applied in the later embodiment of the 5th embodiment.Even if the spool guidance indicated after by the 5th embodiment
In the case that the section of component 750 is formed as shape as Fig. 8, it can also draw in the inner peripheral surface 30a and spool of valve body 30
It leads between the outer peripheral surface of large-diameter portion 750a of component 750, forms gap S in the axial direction, can produce with the shown in Fig. 7 4th in fact
Apply the identical effect of example.
In addition, the straight line portion 720e and arc sections 720f that indicate in Fig. 5 and Fig. 6 can both make spool guide member 720
Wall thickness change and formed, the wall thickness change of spool guide member 720 can not also be made and formed.
Figure 13 is the figure for indicating the motor-driven valve 200 of the tenth embodiment of the present invention.
In the case where motor-driven valve 200 of the tenth embodiment, longitudinal hole portion is not formed in spool 170, it is also not set
Back pressure chamber.
As described above, the present invention also can be applied in the motor-driven valve of not formed back pressure chamber.
More than, various embodiments of the present invention are illustrated, still, in the present invention, for example, shell shown in FIG. 1
60, the material of valve body 30, the lip portions 6f of valve shaft frame 6, spool guide member 72 etc. is not limited to metal.It is assumed that if these by
Synthetic resin is formed, then spool guide member 72 etc. can be fixed by resin welding or binder.
In addition, in their material include metal and synthetic resin both sides in the case where, preferably by binder by its
Integration.
Technical idea of the invention is not limited to be applied to motor-driven valve, also can be applied to other flow control valves, can also fit
For solenoid valve etc..
Claims (4)
1. the rotary motion of rotor is converted by a kind of motor-driven valve by the thread binding of externally threaded item and interior threaded part
Linear motion, and the spool being accommodated in valve body is moved in the axial direction based on the linear motion,
The motor-driven valve is characterized in that,
Be configured to relatively move relative to above-mentioned valve body one in above-mentioned externally threaded item and above-mentioned interior threaded part
The screwed part of side is made of with the spool guide member of the movement of above-mentioned spool in the axial direction is guided separate part,
The outer peripheral surface of the upper opening side of above-mentioned spool guide member is closely engaging in the inner peripheral surface of above-mentioned valve body, and upper
It states between the upper opening side outer peripheral surface of spool guide member and the inner peripheral surface of the upper opening side of above-mentioned valve body, in the axial direction
Formation has the gap,
In the way of fixed installation, make the end face one of the upper opening side of above-mentioned spool guide member and above-mentioned valve body
Change, or keeps above-mentioned spool guide member integrated with the inner peripheral surface of above-mentioned valve body.
2. motor-driven valve according to claim 1, which is characterized in that
Seal member is clamped between above-mentioned spool guide member and above-mentioned spool.
3. motor-driven valve according to claim 1 or 2, which is characterized in that
The mode of above-mentioned fixed installation is any one of welding, bonding.
4. motor-driven valve according to claim 3, which is characterized in that
Above-mentioned welding includes soldering.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015092825 | 2015-04-30 | ||
| JP2015-092825 | 2015-04-30 | ||
| JP2016051410A JP6228621B2 (en) | 2015-04-30 | 2016-03-15 | Motorized valve |
| JP2016-051410 | 2016-03-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106090263A CN106090263A (en) | 2016-11-09 |
| CN106090263B true CN106090263B (en) | 2019-03-12 |
Family
ID=57550765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610274798.8A Active CN106090263B (en) | 2015-04-30 | 2016-04-28 | Motor-driven valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6228621B2 (en) |
| CN (1) | CN106090263B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6753789B2 (en) * | 2017-01-25 | 2020-09-09 | 株式会社鷺宮製作所 | Solenoid valve and refrigeration cycle system |
| KR20220020402A (en) | 2018-08-17 | 2022-02-18 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | Electronic expansion valve |
| JP7106178B2 (en) * | 2019-05-15 | 2022-07-26 | 株式会社不二工機 | flow control valve |
| JP7106154B2 (en) * | 2020-05-27 | 2022-07-26 | 株式会社不二工機 | electric valve |
| JP2023146071A (en) | 2022-03-29 | 2023-10-12 | 株式会社鷺宮製作所 | Valve gear and refrigeration cycle system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4117166B2 (en) * | 2001-09-03 | 2008-07-16 | 株式会社鷺宮製作所 | Motorized valve |
| JP4786834B2 (en) * | 2001-09-03 | 2011-10-05 | 株式会社鷺宮製作所 | Motorized valve |
| JP4028291B2 (en) * | 2002-05-16 | 2007-12-26 | 株式会社鷺宮製作所 | Motorized valve drive device and refrigeration cycle device |
| JP4795806B2 (en) * | 2006-02-07 | 2011-10-19 | 株式会社鷺宮製作所 | Electric valve and solenoid valve |
| JP5875777B2 (en) * | 2011-03-31 | 2016-03-02 | 株式会社不二工機 | Motorized valve |
| JP5901960B2 (en) * | 2011-12-22 | 2016-04-13 | 株式会社不二工機 | Motorized valve |
| JP5380562B2 (en) * | 2012-02-14 | 2014-01-08 | 株式会社不二工機 | Motorized valve |
| JP5701825B2 (en) * | 2012-08-08 | 2015-04-15 | 株式会社鷺宮製作所 | Flow control valve |
| CN104180567B (en) * | 2013-05-22 | 2017-08-25 | 浙江三花智能控制股份有限公司 | A kind of electric expansion valve |
| CN104279342A (en) * | 2013-07-12 | 2015-01-14 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
-
2016
- 2016-03-15 JP JP2016051410A patent/JP6228621B2/en active Active
- 2016-04-28 CN CN201610274798.8A patent/CN106090263B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP6228621B2 (en) | 2017-11-08 |
| JP2016211726A (en) | 2016-12-15 |
| CN106090263A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106090263B (en) | Motor-driven valve | |
| CN101311588B (en) | Needle valve and refrigerating cycle device with the needle valve | |
| CN108397554B (en) | Motor-driven valve | |
| KR101236672B1 (en) | Motor operated valve | |
| JP6392685B2 (en) | Motorized valve | |
| CN104791536B (en) | A kind of direct-driven motor-operated valve | |
| CN108700215A (en) | Motor-driven valve | |
| KR20140119631A (en) | Stepping motor driven control valve | |
| CN108700216A (en) | Motor-driven valve | |
| CN101270817A (en) | Pin valve and refrigeration cycle device using the pin valve | |
| EP3064811B1 (en) | Electronic expansion valve | |
| JP6392686B2 (en) | Motorized valve | |
| CN108779869A (en) | Motor-driven valve and refrigerating circulation system | |
| CN108779871B (en) | Motor-driven valve | |
| CN204628743U (en) | A kind of electric expansion valve | |
| JP2018013140A (en) | Motor-operated valve | |
| CN107366771A (en) | Motor-driven valve | |
| CN108700217B (en) | Motor-driven valve | |
| JP2013504033A (en) | Electronic expansion valve | |
| JP2021121761A (en) | Motor operated valve and refrigeration cycle system | |
| CN108343750A (en) | Motor-driven valve and refrigerating circulation system | |
| CN105626951B (en) | A kind of switching valve | |
| CN108779870A (en) | Motor-driven valve and refrigerating circulation system | |
| CN110094525B (en) | Electrically operated valve and manufacturing method thereof | |
| CN112984134B (en) | Electric valve and refrigeration cycle system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |