CN107178645A - Motor-driven valve - Google Patents
Motor-driven valve Download PDFInfo
- Publication number
- CN107178645A CN107178645A CN201710108951.4A CN201710108951A CN107178645A CN 107178645 A CN107178645 A CN 107178645A CN 201710108951 A CN201710108951 A CN 201710108951A CN 107178645 A CN107178645 A CN 107178645A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- valve
- support member
- engaging portion
- motor
- 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.)
- Granted
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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
- 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
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
-
- 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
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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 provides the motor-driven valve for possessing the position-limit mechanism with guide part (51), driven sliding block (6) and lower end limiting section (53), makes position-limit mechanism firm.Limiter guiding parts (5) is arranged in the periphery of the cradle portion (21) of support member (2), driven sliding block (6) is threaded into the guide part (51) of the limiter guiding parts (5).The cylindrical portion (71) of fastening metal part (7) is set to be embedded in the base portion (22) of support member (2).With the longitudinal axis (54a) of the engaging portion (54) of the bottom of cover portion (72) the covering limiter guiding parts (5) of fastening metal part (7).Make the transverse axis (54b) of engaging portion (54) locking in the locking hole (72a) of cover portion (72).The flange part (73) of the fastening metal part (7) in the hole (72a) of cover portion (72) is fixed on to the fixed component (24) of support member (2) by welding etc..
Description
Technical field
The present invention relates to the use of feed screw mechanism by the rotation transformation of magnet rotor for valve element linear motion and have
The motor-driven valve of standby position-limit mechanism, the position-limit mechanism makes the driven sliding block rotation for being threaded into guide part and is allowed to be connected to lower end
Limiting section limits come at least lower end position to magnet rotor.
Background technology
In the past, as this motor-driven valve, for example, there are Japanese Unexamined Patent Application Publication 2012-533718 publications (patent document 1) disclosed
Motor-driven valve.The thread spindle (armature spindle) of the magnet rotor (magnet rotor) of the electro-motor of the motor-driven valve is threaded into nut
(support member), and move needle-valve by the feed screw mechanism of the rotation with magnet rotor.Also, in spring track
(guide part) is screwed slip ring (driven sliding block), moves slip ring with the rotation of magnet rotor, by making the slip
Ring is connected to lower limit portion (lower end limiting section), to limit the lower end position of magnet rotor.That is, spring track (guide part), slip
Ring (driven sliding block) and lower limit portion (lower end limiting section) constitute position-limit mechanism.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Application Publication 2012-533718 publications
It is embedding by the circumferential limit portion (33d) that will extend from lower limit portion (33c) in the technical scheme of patent document 1
Together in the groove (32e) formed in the periphery of plastic nut (32), it is fixed come the bottom to spring track (33).But
It is, if slip ring (34) is connected to lower limit portion (33c) with stronger impact, to there is the load of the position-limit mechanism damaged (coming off)
Sorrow.
The content of the invention
The problem of the present invention is, transports the rotation transformation of magnet rotor for the straight line of valve element using feed screw mechanism
It is dynamic and possess and rotate the driven sliding block for being threaded into guide part and be allowed to be connected to lower end limiting section and come to magnet rotor
The motor-driven valve of position-limit mechanism that is limited of at least lower end position in, make position-limit mechanism firm.
The rotary motion that the motor-driven valve of scheme 1 will constitute the magnet rotor of electro-motor using feed screw mechanism is transformed to
The linear motion of valve element, makes the valve element be controlled relative to valve port advance and retreat come the flow to the fluid by the valve port, above-mentioned
Motor-driven valve is characterised by possessing：Position-limit mechanism, its at least lower end position to above-mentioned magnet rotor is limited；And branch
Support part part, it is supported on the axis of above-mentioned valve port to the armature spindle of above-mentioned magnet rotor, and above-mentioned position-limit mechanism is by upper
The lower end limiting section that state guide part that the periphery of support member constitutes spiral helicine track, extends from the lower end of the guide part,
The engaging portion extended from the lower end limiting section and it is threaded into the driven sliding block of above-mentioned guide part and constitutes, it is above-mentioned electronic
Valve possesses covering fixed component, the covering fixed component the periphery of above-mentioned support member with to above-mentioned engaging portion around above-mentioned axle
The engaging portion is fixed the mode that the rotation of line is prevented, and at least a portion of the engaging portion is carried out from outside
Covering.
The motor-driven valve of scheme 2 is characterised by, in the motor-driven valve described in scheme 1, and above-mentioned support member possesses cylinder
The cradle portion and diameter of the shape columned base portion bigger than the cradle portion, above-mentioned guide part are located at the periphery of above-mentioned cradle portion,
And above-mentioned engaging portion has the longitudinal axis with above-mentioned diameter parallel, above-mentioned covering in the periphery of the above-mentioned base portion of above-mentioned support member
Fixed component is disposed in the periphery of above-mentioned base portion, the cylinder covered by the above-mentioned longitudinal axis and above-mentioned base portion to above-mentioned engaging portion
The fastening metal part of shape is constituted.
The effect of invention is as follows.
According to the motor-driven valve of scheme 1, due to using covering the engaging portion that fixed component will be extended from the lower end limiting section
Support member is fixed on, so in position-limit mechanism, driven sliding block rotates together with magnet rotor, even if the driven sliding block is abutted
In lower end limiting section, engaging portion will not also depart from from support member, so that position-limit mechanism becomes firm.
According to the motor-driven valve of scheme 2, in addition to the effect of scheme 1, because covering fixed component is by the longitudinal axis to engaging portion
Constituted with the cylindric fastening metal part that base portion is covered, so can be reliably solid relative to the base portion of support member
Determine engaging portion, become more firm so as to position-limit mechanism.
Brief description of the drawings
Fig. 1 is the longitudinal section of the motor-driven valve of embodiments of the present invention.
Fig. 2 is the side view for pulling down the state after shell and magnet rotor of the motor-driven valve of embodiment.
Fig. 3 is the A-A sectional views and partial enlarged drawing in Fig. 2.
In figure：
1-valve casing, 1A-valve chamber, the 11-the first junction block, the 12-the second junction block, 13-valve port, 2-support member,
21-cradle portion, 21a-internal thread part, 22-base portion, 3-armature spindle, 3a-external thread part, 4-valve element portion, 41-valve branch
Frame, 42-valve element, 5-limiter guiding parts (position-limit mechanism), 51-guide part, 52-upper end limiting section, 53-lower end limit
Position portion, 54-engaging portion, the 54a-longitudinal axis, 54b-transverse axis, 6-driven sliding block (position-limit mechanism), 61-claw, 7-fastening gold
Belong to part (covering fixed component), 71-cylindrical portion, 72-cover portion, 73-flange part, 72a-locking hole, 8-stepper motor
(electro-motor), 82-magnet rotor, 82a-ridge, L-axis.
Embodiment
Next, the embodiment to the motor-driven valve of the present invention is illustrated referring to the drawings.Fig. 1 is the electronic of embodiment
The longitudinal section of valve, Fig. 2 is the side view for pulling down the state after shell and magnet rotor of the motor-driven valve, and Fig. 3 is the A- in Fig. 2
A sectional views and partial enlarged drawing.In addition, the concept of " up and down " in the following description with it is corresponding up and down in Fig. 1 accompanying drawing.
Also, the performance of " dextrorotation (turning clockwise) " and " left-handed (rotate counterclockwise) " shows to be viewed from above in the state of motor-driven valve
Direction of rotation.
The motor-driven valve is with valve casing formed by the punch process by metal parts such as stainless steel, brass, machining
1, valve casing 1 has valve chamber 1A on the inside of it.The first junction block 11 turned on valve chamber 1A is connected with the periphery one side of valve casing 1.
Also, the second junction block 12 is connected with the lower end of valve casing 1 and valve port 13, the second junction block is formed with the inner bottom surface of valve casing 1
12 turn on via valve port 13 with valve chamber 1A.In addition, the first junction block 11 and the second junction block 12 are fixed by solder brazing etc.
In valve casing 1.
Support member 2 is installed in the upper end opening portion of valve casing 1.Support member 2 has：Substantially justified by plastic
The cradle portion 21 of column；The diameter generally cylindrical base portion 22 bigger than cradle portion 21；With the cap of the internal diameter of valve casing 1 with footpath
23；And the fixed component 24 for the stainless steel that base portion 22 is more leaned on than the cap 23 is integrally provided on by being insert-molded.Moreover,
By the way that the cap 23 of support member 2 is embedded in into valve casing 1, and fixed component 24 is fixed on to by welding etc. the end of valve casing 1,
Support member 2 is fixed on valve casing 1.
At the center of cradle portion 21, the internal thread part 21a and its screwed hole coaxial with the axis L of valve port 13 is formed with,
The cylindric sliding eye 25 of the periphery of screwed hole of the diameter than internal thread part 21a greatly is formed with base portion 22 and cap 23.And
And, the armature spindle 3 of cylindrical bar shape is equipped in internal thread part 21a screwed hole and sliding eye 25.
External thread part 3a is formed with the periphery of armature spindle 3, external thread part 3a and the internal thread part 21a spiral shells of cradle portion 21
Line is combined.In addition, internal thread part 21a and external thread part 3a are right-handed threads.
Valve element portion 4 is equipped in sliding eye 25.Valve element portion 4 has the cylindric valve support 41 chimeric with sliding eye 25,
Thus valve element portion 4 is supported for slide along axis L directions.Valve support 41 be installed as it is coaxial with valve chamber 1A, and in the valve branch
The bottom of the side of valve port 13 of frame 41 is fixed with the valve element 42 that end is in needle-like.
Valve support 41 engages with armature spindle 3.That is, flange part 3b is integrally formed with the bottom of armature spindle 3, the flange
Portion 3b clamps packing ring 43 together with the upper end of valve support 41, and the bottom of armature spindle 3 can be rotatably in the upper of valve support 41
End engages.By the engaging, valve element portion 4 rotatably can be supported with the state of suspention by armature spindle 3.Also, in valve support
In 41, spring fastening 44 can be movably provided with along axis L directions.With by defined between spring fastening 44 and valve element 42
The state of load is provided with compression helical spring 45.Thus, spring fastening 44 is connected to the bottom of armature spindle 3.
In the periphery of the cradle portion 21 of support member 2, the limiter guiding parts 5 of composition " position-limit mechanism " is equipped.Limit
Position device guiding parts 5 is formed by the bending machining of metal wire rod, is had：The guiding of spiral helicine track is constituted around axis L
Portion 51；In the upper end of guide part 51, bend to the upper end limiting section 52 parallel with axis L；In the lower end of guide part 51, bend to
The lower end limiting section 53 parallel with axis L；And from lower end limiting section 53 along base portion 22 to the half of the direction vertical with axis L
The engaging portion 54 of extension on the outside of the direction of footpath.The engaging portion 54 of limiter guiding parts 5 has in the periphery of the base portion 22 of support member 2
There is the longitudinal axis 54a parallel with axis L and from the longitudinal axis 54a transverse axis 54b that side is protruded vertically outward.
Also, in the periphery of cradle portion 21, with the mode spiral shell chimeric with the track of the guide part 51 of limiter guiding parts 5
Line is combined with the spiral helicine driven sliding block 6 of composition " position-limit mechanism ".Driven sliding block 6 is curved by flexible metal wire rod
Qu Jiagong and formed, with to radial direction claw 61 protruding outside.In addition, guide part 51 and driven sliding block 6 are dextrorotation spiral shells
Line, the spacing of the guide part 51 is set as that the spacing than internal thread part 21a is big.
In the periphery of the base portion 22 of support member 2, to cover the engaging portion 54 of limiter guiding parts 5 and the side of base portion 22
Formula is equipped with the substantially cylindric fastening metal part 7 described later as " covering fixed component ".
In the upper end of valve casing 1, the shell 81 of stepper motor 8 is airtightly fixed with by welding etc..The stepper motor 8 is
One example of " electro-motor ".In shell 81, the magnet rotor 82 of multipole can be rotatably magnetized to provided with peripheral part.And
And, stator coil 83 is equipped with the periphery of shell 81, the stepper motor 8 assigns pulse signal to stator coil 83, thus root
Magnet rotor 82 is rotated according to the umber of pulse.
Magnet rotor 82 is to carry out die forming to being mixed into the mother metal for the powder that is magnetic, at its center by being set into
Shape and integrally provided with fixed metal parts 821.Magnet rotor 82 is fixed by welding etc. using the fixation metal parts 821
In armature spindle 3.Also, magnet rotor 82 is formed with and axis L in substantially cylindric shape in a part for inner circumferential surface
Parallel ridge 82a.
In addition, the motor-driven valve of the embodiment approximately as assembling like that.First, assemble rotor axle 3 and valve element portion 4.
The transverse axis 54b of limiter guiding parts 5 is set to be sticked in the state of fastening metal part 7, by fastening metal part 7 and limiter
Guiding parts 5 is assembled in support member 2, and assembles driven sliding block 6.The above-mentioned rotor of the over-assemble of support member 2 after the assembling
Axle 3 and valve element portion 4.Moreover, the part after assembling is installed on into valve casing 1, in the upper end fixed magnetic rotor of armature spindle 3
82, and shell 81 is installed to assemble stepper motor 8.
Structure more than, armature spindle 3 is rotated by the rotation of magnet rotor 82, and the outer spiral shell for passing through armature spindle 3
The line portion 3a and internal thread part 21a of support member 2 screw thread feeding is acted on, and armature spindle 3 is moved and valve element along axle L directions (up and down)
42 (pin portions) retreat relative to valve port 13.Thus, change the aperture of valve port 13, to flowing to the second joint from the first junction block 11
The flow of the refrigerant of pipe 12 or the flow of refrigerant of the first junction block 11 is flowed to from the second junction block 12 it is controlled.
In addition, the base portion 22 in support member 2 is formed with balancing orifice 22a, shell 81 always with valve chamber 1A with pressure.Also, valve bullet
Spring 46 shrinks to play cushioning effect when valve element 42 is connected to around valve port 13 (valve seat).
Also, in the rotation of magnet rotor 82, ridge 82a is connected to the claw 61 of driven sliding block 6, turn with the magnetic
Son 82 rotation and driven sliding block 6 is rotated in linkage to equidirectional.Thus, the edge limiter guide part of driven sliding block 6 one
The guide part 51 of part 5 is rotated while being moved up and down with armature spindle 3 to equidirectional.Moved up and down by this, driven sliding block 6 is abutted
In the upper end side of limiter guiding parts 5 upper end limiting section 52 or limiter guiding parts 5 lower end side lower end it is spacing
Portion 53.Thus, armature spindle 3 and valve element portion 4 stop in upper end position or lower end position.
As shown in Fig. 2 being disposed in the above-mentioned fastening metal part 7 of the periphery of the base portion 22 of support member 2 has cylindrical portion
71st, the cover portion 72 that is bloated laterally from the cylindrical portion 71 and be formed at cylindrical portion 71 lower end periphery flange part 73, in cover
Portion 72 is formed with locking hole 72a.Moreover, cylindrical portion 71 is embedded in base portion 22, the longitudinal axis of the engaging portion 54 of limiter guiding parts 5
54a is covered by cover portion 72, and the transverse axis 54b of engaging portion 54 is locking in the locking hole 72a of cover portion 72.Also, fastening metal
Flange part 73 is fixed on the fixed component 24 of support member 2 by welding etc. by part 7.
So, because the engaging portion 54 of limiter guiding parts 5 using fastening metal part 7 is securely fixed on base portion
22, even if so driven sliding block 6 is collided with lower end limiting section 53, the impact can be also born, so that the card of limiter guiding parts 5
Determining portion 54 will not depart from from base portion 22.Also, due to engaging portion 54 transverse axis 54b in 54b locking hole 72a it is locking, so
It can prevent limiter guiding parts 5 from deviateing in the direction of the axisl relative to support member 2.
In addition, as shown in Fig. 3 (A), Fig. 3 (B), the fastening metal part 7 in the embodiment is because cover portion 72 is around axle
It is close to the longitudinal axis 54a of the engaging portion 54 of limiter guiding parts 5 in line L circumference, so as to prevent the engaging portion 54 (i.e. spacing
Device guide part 5) rotation.If with the structure, can also exist between cover portion 72 and engaging portion 54 in the radial direction
A little gap.Also, in embodiments, cover portion 72 turns into whole shapes of covering engaging portion 54, but the cover portion 72 also may be used
Be at least covering engaging portion 54 a part shape.
In the above embodiment, as the fastening metal part 7 of " covering fixed component " in substantially cylindric shape
Shape, if but the covering fixed component is that the engaging portion 54 of limiter guiding parts 5 can be fixed on to the part of base portion 22, its
Shape is not limited to embodiment.It for example can also be the shape of ring-type.
More than, referring to the drawings, embodiments of the present invention are illustrated in detail, but specific structure is not limited
In these embodiments, the present invention also includes not departing from design alteration in the range of the purport of the present invention etc..
Claims (2)
1. a kind of motor-driven valve, its rotary motion that the magnet rotor of electro-motor will be constituted using feed screw mechanism is transformed to valve
The linear motion of core, makes the valve element be controlled relative to valve port advance and retreat come the flow to the fluid by the valve port, above-mentioned electricity
Dynamic valve is characterised by possessing：
Position-limit mechanism, its at least lower end position to above-mentioned magnet rotor is limited；And
Support member, it is supported on the axis of above-mentioned valve port to the armature spindle of above-mentioned magnet rotor,
Above-mentioned position-limit mechanism is made up of the guide part of spiral helicine track the periphery in above-mentioned support member, under the guide part
Hold the lower end limiting section extended, the engaging portion extended from the lower end limiting section and be threaded into above-mentioned guide part
Driven sliding block is constituted,
Said electric valve possesses covering fixed component, and the covering fixed component is in the periphery of above-mentioned support member with to above-mentioned locking
The engaging portion is fixed the mode prevented around the rotation of above-mentioned axis in portion, and from outside to the engaging portion to
A few part is covered.
2. motor-driven valve according to claim 1, it is characterised in that
Above-mentioned support member possesses columned cradle portion and the diameter columned base portion bigger than the cradle portion,
Above-mentioned guide part is located at the periphery of above-mentioned cradle portion, and above-mentioned engaging portion above-mentioned support member above-mentioned base portion it is outer
Week has the longitudinal axis with above-mentioned diameter parallel,
Above-mentioned covering fixed component is disposed in the periphery of above-mentioned base portion, is entered by the above-mentioned longitudinal axis and above-mentioned base portion to above-mentioned engaging portion
The cylindric fastening metal part of row covering is constituted.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016045776A JP6521890B2 (en) | 2016-03-09 | 2016-03-09 | Motorized valve |
| JP2016-045776 | 2016-03-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107178645A true CN107178645A (en) | 2017-09-19 |
| CN107178645B CN107178645B (en) | 2019-05-17 |
Family
ID=59830295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710108951.4A Active CN107178645B (en) | 2016-03-09 | 2017-02-27 | Motor-driven valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6521890B2 (en) |
| CN (1) | CN107178645B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094514A (en) * | 2018-01-31 | 2019-08-06 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
| CN110220008A (en) * | 2018-03-01 | 2019-09-10 | 株式会社鹭宫制作所 | Motor-driven valve |
| CN113294527A (en) * | 2020-02-06 | 2021-08-24 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6684836B2 (en) * | 2018-01-29 | 2020-04-22 | 株式会社不二工機 | Motorized valve |
| JP6791508B2 (en) * | 2018-05-29 | 2020-11-25 | 株式会社不二工機 | Solenoid valve |
| CN111059294B (en) * | 2018-10-16 | 2023-11-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
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| CN204784967U (en) * | 2015-05-28 | 2015-11-18 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
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| JP2000213660A (en) * | 1999-01-22 | 2000-08-02 | Samsung Electronics Co Ltd | Electronic expansion valve for refrigerating cycle |
| JP4808343B2 (en) * | 2001-06-12 | 2011-11-02 | 株式会社鷺宮製作所 | Electric control valve stopper structure |
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| CN101956830B (en) * | 2009-07-17 | 2013-06-12 | 浙江三花股份有限公司 | Electronic expansion valve |
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| JP2001208230A (en) * | 2000-01-21 | 2001-08-03 | Sugino Mach Ltd | Motor operated valve device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094514A (en) * | 2018-01-31 | 2019-08-06 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
| CN110094514B (en) * | 2018-01-31 | 2022-03-22 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN114483980A (en) * | 2018-01-31 | 2022-05-13 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN114483980B (en) * | 2018-01-31 | 2024-06-11 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN110220008A (en) * | 2018-03-01 | 2019-09-10 | 株式会社鹭宫制作所 | Motor-driven valve |
| CN110220008B (en) * | 2018-03-01 | 2021-04-02 | 株式会社鹭宫制作所 | Electric valve |
| CN113294527A (en) * | 2020-02-06 | 2021-08-24 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017160992A (en) | 2017-09-14 |
| CN107178645B (en) | 2019-05-17 |
| JP6521890B2 (en) | 2019-05-29 |
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