CN108700215A - Motor-driven valve - Google Patents
Motor-driven valve Download PDFInfo
- Publication number
- CN108700215A CN108700215A CN201780011658.4A CN201780011658A CN108700215A CN 108700215 A CN108700215 A CN 108700215A CN 201780011658 A CN201780011658 A CN 201780011658A CN 108700215 A CN108700215 A CN 108700215A
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- China
- Prior art keywords
- valve
- spool
- motor
- guide member
- mentioned
- Prior art date
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Classifications
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- 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
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention is reliably prevented from the leakage of the fluid under closed valve state.The rotary motion of rotor is transformed into linear motion by motor-driven valve using the thread binding of externally threaded item and interior threaded part, and the spool being incorporated in valve body is set to be axially moveable based on the linear motion, the motor-driven valve has the spool guide member guided to the movement in an axial direction of above-mentioned spool and the seal member being installed between above-mentioned spool guide member and above-mentioned spool, and said electric valve has at least hinders the construction that above-mentioned spool is in direct contact with above-mentioned spool guide member using above-mentioned seal member in the closed valve state.
Description
Technical field
The present invention relates to the motor-driven valves used in freeze cycle etc..
Background technology
Now, known in the motor-driven valve (such as patent document 1) used in large-scale assembled air-conditioner, refrigerator.At this
In motor-driven valve, as shown in Figure 10, if stepper motor drives, rotor 303 rotates, because internal thread 331a's and external screw thread 321a
Screw thread feeds operation, and spool 314 is moved via moving axis 302 in the guide part 313 of the directions axis L upper edge cylindrical shape.It carries out as a result,
It is opened and closed the control of spool 314, to which the flow to the refrigerant flowed out from pipe fitting 312 after the inflow of pipe fitting 311 carries out
Control.
Existing technical literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2014-43949 bulletins
Invention content
Problems to be solved by the invention
However, in above-mentioned motor-driven valve, as shown in figure 11, justified by the way that the construction of spool 314 is set as its outside wall surface
The construction that the internal face of the guide part 313 of tubular guides to be opened and closed, if the shaft core in spool 314 deviates from the shaft core of axis L
In the state of complete motor-driven valve, then when making spool 314 become closed valve state, the lower end of spool 314 keep tilting and with office
The state of portion's contact is connected to valve base part 315, and seam is generated between the lower end of spool 314 and valve base part 315 to have
The worry of gap.In this case, it can be also assumed that and easy to produce the stream such as refrigerant after so that spool 314 is become closed valve state
The leakage of body.
The purpose of the present invention is to provide the spools for the leakage for having the fluid being reliably prevented under closed valve state
Motor-driven valve.
Solution for solving the problem
The motor-driven valve of the present invention for achieving the above object utilizes the thread binding of externally threaded item and interior threaded part
The rotary motion of rotor is transformed into linear motion, and the spool being incorporated in valve body is made in an axial direction based on the linear motion
Mobile, said electric valve is characterized in that having:
Spool guide member guides the movement in an axial direction of above-mentioned spool;And
Seal member is installed between above-mentioned spool guide member and above-mentioned spool,
Said electric valve has at least hinders above-mentioned spool and above-mentioned spool using above-mentioned seal member in the closed valve state
The construction that guide member is in direct contact.
Even if in the case of completing motor-driven valve in the state that the shaft core of spool deviates from the shaft core of motor-driven valve as a result,
In the gap generated between spool and spool guide member, spool can swing or move radially, so as to make spool
Shaft core it is consistent with the shaft core of motor-driven valve.In addition, in the closed valve state, so that between the lower end and valve base part of spool not
The mode for generating gap carries out the contraposition of spool, and thus, it is possible to be reliably prevented the media such as refrigerant generation in the closed valve state to let out
Leakage.
Also, the motor-driven valve of the present invention is characterized in that,
In the lower end of above-mentioned spool guide member, it is formed at least internal face inclined taper downward and outward
Portion.
As a result, during spool moves to valve opening state from closed valve state, the rising of spool is difficult to by spool guide portion
Part hinders, to be easy to store spool to spool guide member.Also, when assembling motor-driven valve, utensils are waited without using a jig
Seal member can be easily set to be inserted into the small diameter portion of spool guide member, so as to improve work when assembling motor-driven valve
Industry, and then the working hour of operation can be reduced.
Also, the motor-driven valve of the present invention is characterized in that,
In above-mentioned spool, it is formed with outside wall surface inclined rake downward and outward.
In this way, by forming rake, during spool moves to valve opening state from closed valve state, spool in spool
Rising is difficult to be hindered by spool guide member, to be easy to store spool to spool guide member.
Also, the motor-driven valve of the present invention is characterized in that,
Before assembling the motor-driven valve, above-mentioned seal member is installed on any in above-mentioned spool and above-mentioned spool guide member
Side.
The effect of invention is as follows.
Invention according to the present invention is reliably prevented from the leakage of the fluid under closed valve state.
Description of the drawings
Fig. 1 is the sectional view of the motor-driven valve of first embodiment.
Fig. 2 is the major part enlarged cross-sectional view of motor-driven valve shown in FIG. 1.
Fig. 3 is that the major part amplification for the case where seal member is using O-ring in the motor-driven valve of first embodiment is cutd open
View.
Fig. 4 is that the major part for the case where seal member is using composite seal in the motor-driven valve of first embodiment is put
Big sectional view.
Fig. 5 is the major part enlarged cross-sectional view of the motor-driven valve of second embodiment.
Fig. 6 is the synoptic diagram for illustrating to assemble the process of the motor-driven valve of second embodiment.
Fig. 7 is the sectional view of the motor-driven valve of third embodiment.
Fig. 8 is the major part enlarged cross-sectional view of the motor-driven valve of third embodiment.
Fig. 9 is the synoptic diagram for illustrating to assemble the process of the motor-driven valve of third embodiment.
Figure 10 is the sectional view of the existing motor-driven valve disclosed in Japanese Unexamined Patent Publication 2014-43949 bulletins.
Figure 11 is the major part enlarged section of the existing motor-driven valve disclosed in Japanese Unexamined Patent Publication 2014-43949 bulletins
Figure.
Specific implementation mode
Hereinafter, being illustrated to the motor-driven valve of first embodiment with reference to attached drawing.Fig. 1 is the electricity for showing first embodiment
The sectional view of dynamic valve 2.In addition, in the present specification, defined in the state of Fig. 1 "above" or "below".That is, rotor 4 be located at than
Valve member 17 is closer to the top.
In the motor-driven valve 2, it is being made of nonmagnetic material and the lower section of the open side of the shell of tubular cup-shaped 60,
It is integrally connected valve body 30 using welding etc..
Herein, valve body 30 is the manufacturing press-molded products being fabricated to by the punch process of stainless-steel sheet, is had in inside
There is valve chamber 11.Also, in valve body 30, fixing assembling has the stainless steel being directly connected to valve chamber 11 or the first pipe made of copper to connect
First 12.In addition, being assembled with valve base part 30A on the inside of the lower section of valve body 30, valve base part 30A is formed with valve port 16.
Valve base part 30A, fixing assembling have the stainless steel or the second pipe fitting 15 made of copper being connected to valve chamber 11 via valve port 16.
The rotor 4 that can be rotated is accommodated in the inner circumferential of shell 60, in the shaft core part of rotor 4, via sleeve member 33
And it is configured with valve shaft 41.The valve shaft 41 and rotor 4 combined using sleeve member 33 is integrally vertically square in rotation
To movement.In addition, the 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
It is functioned as externally threaded item.
In stator of the periphery of shell 60 configured with compositions such as not shown yoke portion, spool and coils, and by rotor
4 and stator constitute stepper motor.
It is fixed with guide support body 52 in the top plate face of shell 60.Guide support body 52 has cylindrical portion 53 and is formed in
The umbrella portion 54 of the upper end side of cylindrical portion 53, by being integrally formed to whole progress punch process.Umbrella portion 54 be shaped to
The inside top same shape of shell 60.
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
It is made of the component for being put into the material of the lubriation material based on metal or synthetic resin or being carried out after surface treatment, it will
Valve shaft 41, which remains, to be rotated.
In the position more on the lower of ratio sleeve member 33 of valve shaft 41, with can not be relative to the side of 30 relative rotation of valve body
Formula is fixed with valve shaft holder 6, which constitutes between valve shaft 41 as being described below and be screwed A, and
And with inhibition 41 inclined function of valve shaft.
Valve shaft holder 6 by the tubular small diameter portion 6a of upper side, lower side tubular large-diameter portion 6b, be incorporated in valve body 30
Inner peripheral portion side fitting portion 6c and cricoid flange part 6f constitute.Moreover, the flange part 6f of valve shaft holder 6 utilizes welding
Between upper surface and shell 60 etc. the flange part 72c for being fixed on spool guide member 72.Also, in the inside of valve shaft holder 6
It is formed with through hole 6h.
Also, from the upper opening portion 6g of the tubular small diameter portion 6a of the valve shaft holder 6 downward until predetermined depth
It is formed with internal thread 6d.
Moreover, the external screw thread 41a of periphery by being formed in valve shaft 41 and being formed in the tubular small diameter portion 6a of valve shaft holder 6
The internal thread 6d of inner circumferential, which is constituted, is screwed A.
In addition, be provided through balancing orifice 51 in the side of the tubular large-diameter portion 6b of valve shaft holder 6, by the balancing orifice 51
Between the valve shaft holder room 83 being connected in tubular large-diameter portion 6b and rotor receiving room 67 (the second back pressure chamber).By being arranged like this
Balancing orifice 51, come the space being connected in the space and valve shaft holder 6 of the storage rotor 4 of shell 60, thus, it is possible to swimmingly carry out
The shift action of valve shaft holder 6.
Also, in the lower section of valve shaft 41, cylinder is configured in a manner of it can be slided relative to the through hole 6h of valve shaft holder 6
The valve guide part 18 of shape.21 side of top plate portion substantially at right angles to bending by punch forming of the valve guide part 18.Moreover,
The top plate portion 21 is formed with through hole 18a.Also, it is also formed with convex edge 41b in the lower section of valve shaft 41.
Herein, valve shaft 41 by can relative to valve guide part 18 rotate and can it is radially displaced in a manner of with loose fit
State be inserted in the through hole 18a of valve guide part 18, and convex edge 41b relative to valve guide part 18 can rotate and energy
Enough radially displaced modes configure in valve guide part 18.Also, valve shaft 41 is inserted in through hole 18a, convex edge 41b's
Upper surface is configured to opposed with the top plate portion of valve guide part 18 21.In addition, the diameter of convex edge 41b is more than passing through for valve guide part 18
Thus the diameter of through-hole 18a carries out the anticreep of valve shaft 41.
Valve shaft 41 and valve guide part 18 can be moved radially mutually, thus matching about valve shaft holder 6 and valve shaft 41
Seated position, it is not required that the concentric installation accuracy of height can be obtained relative to the concentric of valve guide part 18 and valve member 17
Degree.
Also, in the lower end of valve shaft 41, formed oriented convex edge 41b lower section it is prominent and with 35 points of aftermentioned spring base
The protruding portion 41c of contact (with reference to Fig. 2).Protruding portion 41c has the mistake for moving to valve opening state from closed valve state in valve member 17
In journey as swing in the case of fulcrum function.Further, since protruding portion 41c not by spring base 35 limit, only with
35 point contact of spring base, so valve member 17 can also be moved radially relative to valve shaft 41.
It is provided with washer 70 between the top plate portion 21 of valve guide part 18 and the convex edge 41b of valve shaft 41.Washer 70 is preferred
It is the made of metal that the high-slips resin washers such as made of metal washer, the fluororesin on high-slip surface or coating have high-slip resin
Washer etc..It is formed with through hole in the central portion of washer 70.
In addition, being accommodated with the valve spring 27 having compressed and spring base 35 in valve guide part 18.The upper end of spring base 35 is such as
It is above-mentioned like that with the protruding portion 41c point contacts of valve shaft 41.
Next, being illustrated to the major part of the motor-driven valve 2 in the present invention.Fig. 2 is by the electricity of first embodiment
The sectional view of the major part amplification of dynamic valve 2.As shown in Fig. 2, being configured with valve member 17, to valve member in the inside of valve body 30
The spool guide member 72 that 17 movement in an axial direction guides, and pressed from both sides between valve member 17 and spool guide member 72
Equipped with seal member 48.
Valve member 17 is made of spool maintaining part 17A and spool portion 17B.Spool maintaining part 17A has to be formed in inside
Longitudinal hole portion 17b is formed with lateral via hole 17c as the roads Jun Ya as the linking part 17A1 on the roads Jun Ya and in inside
Head 17A2.Herein, the pressure of valve port 16 (in the second pipe fitting 15) is via hole portion 17b, the via hole 17c quilts as the roads Jun Ya
It guides to back pressure chamber 28.Also, 17B is formed with the receiving space 17a for receiving linking part 17A1 in the longitudinal direction in spool portion.
Also, on the longitudinal direction of valve member 17, the lower face 17g in the head 17A2 of spool maintaining part 17A and spool portion
Between the upper surface 17h of 17B, configured with section in the reinforcing plate 48b of gripping ring-like between the ringed liner 48a of L-shaped and
The cricoid seal member 48 formed.Draw with spool as described above, the seal member 48 is installed in valve member 17 in the horizontal
Between leading component 72, thus at least in the case where motor-driven valve 2 is in closed valve state, as shown in Fig. 2, hindering valve member 17 and valve
Core guide member 72 is in direct contact.Therefore, even if being completed in the state that the shaft core of valve member 17 deviates from the shaft core of motor-driven valve 2
In the case of motor-driven valve 2, between valve member 17 and spool guide member 72 in generated gap, valve member 17 can be with valve
The protruding portion 41c of axis 41 is that fulcrum swing or radially move horizontally, to also can easily make valve member 17
Shaft core is consistent with the shaft core of motor-driven valve 2.It as a result, in the closed valve state, can be so that in the lower end of valve member 17 and seat portion
The mode for not generating gap between part 30A carries out the contraposition of valve member 17.
Spool guide member 72 is the cylinder of internal run-through, has the flange part 72c positioned at upper, major diameter below
Portion 72a and small diameter portion 72b below, and formed by stamping.Also, the large-diameter portion of spool guide member 72
The diameter of the periphery surface side of 72a is formed as more slightly larger than the diameter of the inner peripheral surface side of valve body 30.That is, by setting ruler like this
It is very little, in the case where spool guide member 72 to be assembled in after valve body 30, seal member 48 can be made closely engaging in valve
The inner peripheral surface of core guide member 72.
More than, the structure of the motor-driven valve 2 of the present invention is illustrated, the action of motor-driven valve 2 is illustrated below.Electricity
Dynamic valve 2 assigns drive pulse signal to stepper motor, and thus rotor 4 is rotated according to umber of pulse, is accompanied by this, and valve shaft 41 revolves
Turn, and because of the thread binding A that the internal thread 6d of the valve shaft holder 6 of the external screw thread 41a and fixed configurations of valve shaft 41 is constituted, valve
Axis 41 is axially moveable while rotation.
The decline movement (movement of valve closing direction) of valve shaft 41 passes through spring base 35, convex edge 41b, washer 70, top plate portion 21
Abutting be transferred to valve guide part 18, valve guide part 18 and valve member 17 decline mobile carry out.
The rising movement (valve opening position movement) of valve shaft 41 is also by spring base 35, convex edge 41b, washer 70, top plate portion
21 abutting is transferred to valve guide part 18, and valve guide part 18 and valve member 17 carry out rising movement to carry out.In addition, being closed from valve
Valve member 17 when state moves to valve opening state by pressure influence caused by fluid flowed into from the first pipe fitting 12 etc., from
And in the state for being easier to swing, but rise mobile in valve member 17 and be contained to spool guide portion 72, due to valve
Component 17 is guided by spool guide portion 72, so being difficult to by pressure influence caused by fluid etc., to which valve member 17 is difficult to
It swings.In this way, valve member 17 is guided by using spool guide portion 72, to improve the workability of valve member 17.
According to the motor-driven valve 2 of the first embodiment, sealing is clamped between valve member 17 and spool guide member 72
Part 48, to hinder valve member 17 to be in direct contact with spool guide member 72, thus, it is possible to be reliably prevented to make in the closed valve state
The fluids such as cryogen generate leakage.
In addition, in above-mentioned first embodiment, to be connected with valve shaft 41 and valve member 17 via valve guide part 18
In case of be illustrated, but motor-driven valve 2 may not possess valve guide part 18, and valve member 17 is formed as one with valve shaft 41
Body.In this case, valve member 17 can also be put by the gap being formed between external screw thread 41a and internal thread 6d
It moves or radially moves horizontally.
Also, in the seal member of above-mentioned first embodiment 48, preferably in the ringed liner 48a being disposed above
Upside and ringed liner 48a arranged below on the downside of leaf spring is respectively configured, the leaf spring outward to ringed liner into
Row force, so that L words will not become to be excessively sharp.Also, seal member 48 can also use only big by section as illustrated in fig. 3
Cause rounded ringed liner (so-called O-ring) constitute structure, can also as shown in figure 4, as a seal part 48 and adopt
There are O-ring 48d and the section being made of the high-lubricities resin material such as PTFE to be formed in the ringed liner 48f of C-shaped with combination
Composite seal.
Next, being illustrated to the motor-driven valve of second embodiment with reference to attached drawing.The motor-driven valve of the second embodiment
It is configured to, tapered portion is formed in the lower end of the small diameter portion 72b of the spool guide member 72 of first embodiment.Therefore, it saves
The explanation of structure slightly same as the first embodiment, only illustrates different parts.
Fig. 5 is the sectional view for amplifying the major part of the motor-driven valve of second embodiment.As shown in figure 5, drawing in spool
The lower end for leading the small diameter portion 72b of component 72 is formed with inclined tapered portion 72f downward and outward.In addition, in Fig. 5,
The case where being formed with tapered portion 72f with showing the wall thickness change for not making small diameter portion 72b, but can also only make that small diameter portion 72b's is interior
The wall thickness of wall surface is gradually thinning downward, and only internal face is made to tilt downward and outward.Also, as shown in figure 5,
Spool portion 17B is the cylindric component that the diameter of upper portion 171 is less than the diameter of lower portion 172, and in upper portion
Inclined sloping portion 173 downward and outward is formed between 171 and lower portion 172.
According to the invention of the second embodiment, formed by the lower end of the small diameter portion 72b in spool guide member 72
Tapered portion 72f, it can be ensured that the workability of valve member 17.Specifically, moving to valve opening state from closed valve state in valve member 17
During, the case where capable of preventing the rising of valve member 17 from being hindered by spool guide member 72, to be easy valve member 17
It stores to spool guide member 72.
Also, by forming sloping portion 173 in spool portion 17B, valve opening state is moved to from closed valve state in valve member 17
During, it can be further reduced the possibility that the rising of valve member 17 is hindered by spool guide member 72, so that being easy will
Valve member 17 is stored to small diameter portion 72b.
Also, tapered portion 72f is formed by the lower end of the small diameter portion 72b in spool guide member 72, it can be easily
Assemble motor-driven valve.Hereinafter, being illustrated to the effect using Fig. 6.
Fig. 6 (a) is the pass for showing spool guide member 72 and valve member 17 and seal member 48 before assembling motor-driven valve
The figure of system.As shown in Fig. 6 (a), the motor-driven valve of the second embodiment before assembling is formed as, and the shape Dp of seal member 48 is more than
The internal diameter Di of the small diameter portion 72b of spool guide member 72, in addition the internal diameter Dt of the lower end of the tapered portion 72f of spool guide member 72
More than the shape Dp of seal member 48.
That is, shape of the size of diameter according to the internal diameter Di < seal members 48 of the small diameter portion 72b of spool guide member 72
The sequence of the internal diameter Dt of the lower end of the tapered portion 72f of Dp < spools guide member 72 becomes larger.
However, as shown in the motor-driven valve 2 of first embodiment, when not in the lower end of spool guide member 72 formation taper
(with reference to Fig. 2) in the case of portion 72f, in order to assemble motor-driven valve 2, need so that the shape Dp of seal member 48 is guided less than spool
The mode of the internal diameter Di of the small diameter portion 72b of component 72 makes the contraction of seal member 48 and is inserted into spool to draw using fixture etc.
Lead component 72.But as shown in Fig. 6 (a), in the case of being formed with tapered portion 72f in the lower end of spool guide member 72,
If being urged to tapered portion 72f from downside by seal member 48 when assembling motor-driven valve 2, the shape of seal member 48 is by tapered portion
72f is guided and is risen, and shape Dp is shunk concomitantly, to be inserted into spool guide member 72 as shown in Fig. 6 (b)
Small diameter portion 72b.
In this way, by forming tapered portion 72f in the lower end of spool guide member 72, the rising of valve member 17 can be prevented
The case where being hindered by spool guide member 72, to be easy the storage of valve member 17 to spool guide member 72.Also, due to not
Seal member 48 can be easily set to be inserted into the small diameter portion 72b of spool guide member 72 using utensils such as fixtures, so energy
Enough workability improved when assembling motor-driven valve, and then the working hour of operation can be reduced.Also, due to waiting utensils without using a jig,
So when assembling motor-driven valve, the worry also damaged by utensil without seal member 48.
Next, being illustrated to the motor-driven valve of third embodiment with reference to attached drawing.The motor-driven valve of the third embodiment
It is configured to, the seal member 48 that 17 side of valve member is configured in first embodiment is configured in 72 side of spool guide member.And
And it is formed with sloping portion in the peripheral surface of valve member 17.Therefore, the explanation of structure same as the first embodiment is omitted,
Only illustrate different parts.
Fig. 7 is the sectional view for the motor-driven valve for showing third embodiment, and Fig. 8 is the sectional view for amplifying its major part.
As shown in figure 8, forming the inside bending of oriented spool guide member 72 in the lower end of the small diameter portion 72b of spool guide member 72
Made of bending part 72k, and on bending part 72k be configured with seal member 48.Also, it is formed in the peripheral surface of valve member 17
Inclined sloping portion 173 downward and outward.In addition, in Fig. 7, Fig. 8, show as a seal part 48 and use
Combination O-ring 48d and section are in the example made of the ringed liner 48f of C-shaped the case where composite seal, but sealing
Part 48 is not limited to composite seal.For example, it is also possible to using the sealing element being only made of O-ring, it can also use and cut
Face is in structure made of the reinforcing plate 48b of gripping ring-like between the ringed liner 48a of L-shaped (with reference to Fig. 2).
According to the invention of the third embodiment, seal member 48 is not configured at 17 side of valve member, and is configured at
Bending part 72k made of inside bending to spool guide member 72, thus, it is possible to sealing is easily installed in motor-driven valve
Part 48.
Also, sloping portion 173 is formed by the peripheral surface in valve member 17, can easily assemble motor-driven valve.Hereinafter,
The effect is illustrated using Fig. 9.
Fig. 9 (a) is the pass for showing spool guide member 72 and valve member 17 and seal member 48 before assembling motor-driven valve
The figure of system.As shown in Fig. 9 (a), the motor-driven valve of the third embodiment before assembling is formed as, and the internal diameter Dp of seal member 48 is more than
The diameter Dt on the top of valve member 17, in addition the diameter Dr of the lower part of valve member 17 be more than seal member 48 internal diameter Dp.
That is, internal diameter Dp < valve member 17 of the size of diameter according to the diameter Dt < seal members 48 on the top of valve member 17
The sequence of diameter Dr of lower part become larger.
Therefore, in the case where assembling motor-driven valve, first, valve shaft 41 is inserted into valve shaft holder 6 and is allowed to penetrate through tubular
Small diameter portion 6a later rotates valve shaft 41, makes the external screw thread 41a of valve shaft 41 and is formed in the tubular small diameter portion 6a of valve shaft holder 6
The internal thread 6d of inner circumferential be screwed, and the top of valve member 17 is made to be located in seal member 48.If making valve in this state
The position of component 17 is moved upward, then the sloping portion 173 of valve member 17 is abutted with seal member 48.If further making valve portion
The position of part 17 is moved upward, then seal member 48 is inclined by the inclined lead of part 173 and is gradually expanded, to such as Fig. 9
(b) valve member 17 is inserted into the small diameter portion 72b of spool guide member 72 shown in.
In this way, forming sloping portion 173 by the peripheral surface in valve member 17, wait utensils that can be easy without using a jig
Ground makes valve member 17 be inserted into spool guide member 72, so as to improve workability when assembling motor-driven valve, and then can subtract
The working hour of few operation.Also, due to waiting utensils without using a jig, so when assembling motor-driven valve, also without 48 quilt of seal member
The worry of utensil damage.
It is also identical as the content illustrated in the first embodiment also, in the invention of third embodiment, by
Seal member 48 is clamped between valve member 17 and spool guide member 72, at least hinders valve member 17 and spool in the closed valve state
Guide member 72 is in direct contact.Therefore, valve member 17 can swing or radially move horizontally, to easily so that in valve
The mode for not generating gap between the lower end and valve base part 30A of component 17 carries out the contraposition of valve member 17.Thus, it is possible to can
Prevent the fluids such as refrigerant from generating leakage by ground.
In addition, in second, third embodiment, equally, motor-driven valve 2 may not possess valve guide part 18, valve member
17 are formed as one with valve shaft 41.In this case, valve member 17 also can because be formed in external screw thread 41a and internal thread 6d it
Between gap and carry out swing or radially move horizontally.
Also, in the above-described embodiment, as the roads Jun Ya to be equipped with hole portion 17b, via hole 17c in valve member 17
In case of be illustrated, but can not also in the valve member 17 roads setting Jun Ya.For example, it is also possible to separately be arranged valve
The pressure of mouth 16 guides the tube parts to back pressure chamber 28 to replace the roads setting Jun Ya in valve member 17.
The explanation of symbol
2-motor-driven valves, 4-rotors, 6-valve shaft holders, 6d-internal thread, 11-valve chambers, 13-guide parts, 14-valves
Core, 16-valve ports, 17-valve members, 17A-spool maintaining part, 17A1-linking part, 17A2-head, 17B-spool portion,
17a-receiving space, 17b-hole portion, 17c-via hole, 17g-lower face, 17h-upper surface, 18-valve guide parts, 21-
Top plate portion, 27-valve springs, 28-back pressure chambers, 30-valve bodies, 30A-valve base part, 41-valve shafts, 41a-external screw thread, 48-
Seal member, 48a-ringed liner, 48b-reinforcing plate, 48d-O-ring, 48f-ringed liner, 52-guide support bodies,
72-spool guide members, 72a-large-diameter portion, 72b-small diameter portion, 72c-flange part, 72f-tapered portion, 83-valve shaft holders
Room, 171-upper portions, 172-lower portion, 173-sloping portions.
Claims (4)
1. the rotary motion of rotor is transformed into directly by a kind of motor-driven valve using the thread binding of externally threaded item and interior threaded part
Line moves, and so that the spool being incorporated in valve body is axially moveable based on the linear motion, and the feature of said electric valve exists
In having:
Spool guide member guides the movement in an axial direction of above-mentioned spool;And
Seal member is installed between above-mentioned spool guide member and above-mentioned spool,
Said electric valve has at least hinders above-mentioned spool to be guided with above-mentioned spool using above-mentioned seal member in the closed valve state
The construction that component is in direct contact.
2. motor-driven valve according to claim 1, which is characterized in that
In the lower end of above-mentioned spool guide member, it is formed at least internal face inclined tapered portion downward and outward.
3. motor-driven valve according to claim 1, which is characterized in that
In above-mentioned spool, it is formed with outside wall surface inclined rake downward and outward.
4. motor-driven valve according to any one of claims 1 to 3, which is characterized in that
Before assembling the motor-driven valve, above-mentioned seal member is installed on either one in above-mentioned spool and above-mentioned spool guide member.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016048441A JP2017161051A (en) | 2016-03-11 | 2016-03-11 | Motor-operated valve |
| JP2016-048441 | 2016-03-11 | ||
| PCT/JP2017/000988 WO2017154346A1 (en) | 2016-03-11 | 2017-01-13 | Motor operated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108700215A true CN108700215A (en) | 2018-10-23 |
Family
ID=59790236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780011658.4A Withdrawn CN108700215A (en) | 2016-03-11 | 2017-01-13 | Motor-driven valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2017161051A (en) |
| CN (1) | CN108700215A (en) |
| WO (1) | WO2017154346A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076206A (en) * | 2020-08-18 | 2022-02-22 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723877B (en) | 2017-10-27 | 2021-06-18 | 浙江三花制冷集团有限公司 | Electric valve |
| CN109723831A (en) * | 2017-10-27 | 2019-05-07 | 浙江三花制冷集团有限公司 | A kind of motor-driven valve and its manufacturing method |
| CN109723826B (en) * | 2017-10-27 | 2023-02-28 | 浙江三花商用制冷有限公司 | Electric valve |
| JP6864652B2 (en) * | 2018-06-19 | 2021-04-28 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| WO2020181922A1 (en) * | 2019-03-13 | 2020-09-17 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve and refrigeration system |
| KR102625237B1 (en) * | 2019-06-28 | 2024-01-16 | 쯔지앙 산화 인텔리전트 컨트롤스 씨오., 엘티디. | electronic expansion valve |
| JP7097093B2 (en) * | 2020-05-28 | 2022-07-07 | 株式会社不二工機 | Solenoid valve |
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| CN201110416Y (en) * | 2007-10-31 | 2008-09-03 | 温州帝威斯感应洁具有限公司 | Touch type block-resistant descaling time-delay self-closing water-saving device |
| JP2011202697A (en) * | 2010-03-24 | 2011-10-13 | Rinnai Corp | Flow control valve |
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| CN204083264U (en) * | 2014-08-27 | 2015-01-07 | 杭州江南控制阀有限公司 | A kind of piston is as the single-seat adjusting valve of balancing component |
| CN104421436A (en) * | 2013-08-19 | 2015-03-18 | 株式会社鹭宫制作所 | Flow control valve |
| CN105276199A (en) * | 2014-07-18 | 2016-01-27 | 株式会社鹭宫制作所 | Electric valve |
| CN105299297A (en) * | 2014-06-26 | 2016-02-03 | 株式会社不二工机 | Three-way solenoid valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5860429B2 (en) * | 2013-03-29 | 2016-02-16 | 株式会社鷺宮製作所 | Flow control valve |
| JP6392685B2 (en) * | 2015-03-06 | 2018-09-19 | 株式会社鷺宮製作所 | Motorized valve |
| JP6860988B2 (en) * | 2016-07-19 | 2021-04-21 | 株式会社鷺宮製作所 | Electric valve |
-
2016
- 2016-03-11 JP JP2016048441A patent/JP2017161051A/en active Pending
-
2017
- 2017-01-13 CN CN201780011658.4A patent/CN108700215A/en not_active Withdrawn
- 2017-01-13 WO PCT/JP2017/000988 patent/WO2017154346A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110416Y (en) * | 2007-10-31 | 2008-09-03 | 温州帝威斯感应洁具有限公司 | Touch type block-resistant descaling time-delay self-closing water-saving device |
| JP2011202697A (en) * | 2010-03-24 | 2011-10-13 | Rinnai Corp | Flow control valve |
| CN202182222U (en) * | 2011-07-28 | 2012-04-04 | 杭州良工阀门有限公司 | Piston type balanced self-reliance pressure-regulating valve |
| CN104421436A (en) * | 2013-08-19 | 2015-03-18 | 株式会社鹭宫制作所 | Flow control valve |
| CN105299297A (en) * | 2014-06-26 | 2016-02-03 | 株式会社不二工机 | Three-way solenoid valve |
| CN105276199A (en) * | 2014-07-18 | 2016-01-27 | 株式会社鹭宫制作所 | Electric valve |
| CN204083264U (en) * | 2014-08-27 | 2015-01-07 | 杭州江南控制阀有限公司 | A kind of piston is as the single-seat adjusting valve of balancing component |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076206A (en) * | 2020-08-18 | 2022-02-22 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017161051A (en) | 2017-09-14 |
| WO2017154346A1 (en) | 2017-09-14 |
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Application publication date: 20181023 |