CN107366772A - Motor-driven valve - Google Patents
Motor-driven valve Download PDFInfo
- Publication number
- CN107366772A CN107366772A CN201710283574.8A CN201710283574A CN107366772A CN 107366772 A CN107366772 A CN 107366772A CN 201710283574 A CN201710283574 A CN 201710283574A CN 107366772 A CN107366772 A CN 107366772A
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- Prior art keywords
- valve
- mentioned
- motor
- bearing
- connecting rod
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Details Of Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention provides a kind of motor-driven valve of pressure-balancing type, valve member (3) is installed on connecting rod (5) by it via the bearing (4) as swivel bearing, connecting rod (5) is moved up and down by the rotation and feed screw mechanism of the rotor of stepper motor, the motor-driven valve maintains the service behaviour of the stabilization of bearing (4).By the outer space (3A1) of valve member (3), inner space (3A2), the inside of bearing (4), guiding path (3a), " pressing stream " by valve port (11) and back pressure chamber (2A) conducting is formed.In the valve element (31) of valve member (3), disc spring (35) and filter screen (6) are arranged between bearing (4) and snap ring (31b).Filter screen (6) is clamped by disc spring (35) and snap ring (31b), so as to be fixed on the inner side of valve element (31).
Description
Technical field
The present invention relates to the motor-driven valve used in freeze cycle etc., specifically, is related to the motor-driven valve of pressure-balancing type.
Background technology
At present, the design concept of the motor-driven valve of this pressure-balancing type is as follows：In order to eliminate the pressure applied to valve member
Difference, by the way that the back pressure chamber on the top of valve member to be conducted to the valve port side of valve member bottom located at the Jun Ya roads of valve member, make
The upper and lower part of valve member is with pressing, so that being eliminated to the net pressure difference that valve member applies.As such motor-driven valve, such as
With in Japanese Unexamined Patent Publication 10-2450 publications (patent document 1) and Japanese Unexamined Patent Publication 2013-224708 publications (patent text
Offer 2) disclosed in motor-driven valve.
Valve member is held in and utilized and the rotor of electro-motor by the existing motor-driven valve by swivel bearings such as bearings
Feed screw mechanism and upper and lower connecting rod, valve port is opened and closed by valve member.In addition, in patent document 1, by valve portion
The back pressure chamber relative with valve member is conducted to valve port by the inside of part as stream is pressed by fluid.In contrast, patent
Document 2 is provided with the Jun Ya road different from the pressure stream of the inside of above-mentioned valve member, is connected with back pressure chamber (back of the body space).
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 10-2450 publications
Patent document 2：Japanese Unexamined Patent Publication 2013-224708 publications
The content of the invention
Invent problem to be solved
In above-mentioned patent document 2, motor-driven valve can be maximized with setting the amount on Jun Ya roads.In contrast, patent text
1 is offered using the inside of valve member as pressing stream, therefore will not be maximized.But along press flow path fluid (for example,
Refrigerant) for keeping flowing in the swivel bearings such as the bearing of valve member.Accordingly, there exist problems with：Foreign matter in fluid
(fouling products etc.) is accumulated in swivel bearing, causing the work of the swivel bearing bad.
The problem of the present invention is, is kept via swivel bearing in the motor-driven valve of the pressure-balancing type of valve member, real
Now to the dust-proof countermeasure of swivel bearing, the service behaviour of the stabilization of swivel bearing is maintained.
For solving the scheme of problem
The motor-driven valve of first scheme possesses：The guide part of drum, it is disposed in valve casing；Valve port, its formation are supplying
The inflow entrance and supply between the flow export of fluid outflow that fluid flows into；Valve member, it can slidably be disposed in above-mentioned guide part
It is interior, and above-mentioned valve port is opened and closed；Connecting rod, it is by the rotation and feed screw mechanism of the rotor of electro-motor and in axle
Line side moves up；And swivel bearing, it is fixed on above-mentioned connecting rod, and above-mentioned valve member is kept via above-mentioned swivel bearing
In above-mentioned connecting rod, and relative to above-mentioned valve member and with the back pressure chamber of above-mentioned valve port opposite side and the valve port by pressing
Stream and turn on so that the Fluid pressure uniformity of the Fluid pressure of the back pressure chamber and above-mentioned valve port,
Said electric valve is characterised by,
Possesses the dust proof member for above-mentioned swivel bearing in the inside of above-mentioned valve member.
The motor-driven valve of alternative plan is characterised by, in the motor-driven valve of first scheme, above-mentioned dust proof member is filter screen, should
Filter screen is disposed in the above-mentioned valve port side of the inside of above-mentioned valve member.
The motor-driven valve of third program is characterised by, in the motor-driven valve of first scheme, above-mentioned dust proof member is packing ring, should
Packing ring is together installed on above-mentioned connecting rod located at the end of the above-mentioned valve port side of above-mentioned swivel bearing with the swivel bearing.
The motor-driven valve of fourth program is characterised by, in the motor-driven valve of first scheme, above-mentioned swivel bearing is dust-proof axle
Hold, above-mentioned dust proof member is the sealing plate of above-mentioned shield bearing.
Invention effect
According to the motor-driven valve of first scheme, it can prevent foreign matter from being invaded to swivel bearing by the dust proof member in valve member
Enter, therefore be able to maintain that the service behaviour of the stabilization of swivel bearing.
According to the motor-driven valve of alternative plan, on the basis of the effect of first scheme, pass through the light weight of filter screen etc
Part is able to ensure that the action of the stabilization of valve member.
It is on the basis of the effect of first scheme, packing ring and swivel bearing is together solid according to the motor-driven valve of third program
Due to connecting rod, therefore being capable of simply mounting gasket.
According to the motor-driven valve of fourth program, on the basis of the effect of first scheme, realized by shield bearing reliable
Dust-proof countermeasure.
Brief description of the drawings
Fig. 1 is the longitudinal section of the closed valve state of the motor-driven valve of the first embodiment of the present invention.
Fig. 2 is Fig. 1 enlarged view of the main part.
Fig. 3 is the longitudinal section of the closed valve state of the motor-driven valve of second embodiment of the present invention.
Fig. 4 (A) to Fig. 4 (C) is Fig. 3 enlarged view of the main part and major part vertical view cutaway drawing.
Fig. 5 is the longitudinal section of the closed valve state of the motor-driven valve of third embodiment of the present invention.
Fig. 6 (A) to Fig. 6 (C) is Fig. 5 enlarged view of the main part and major part vertical view cutaway drawing.
Fig. 7 is the longitudinal section of the closed valve state of the motor-driven valve of the 4th embodiment of the present invention.
Fig. 8 (A) to Fig. 8 (C) is Fig. 7 enlarged view of the main part and major part vertical view cutaway drawing.
In figure：
1-valve casing, 1A-valve chamber, 11-valve port, 12-it is oriented to embedded hole, 13-junction block, 14-junction block, 2-valve
Guiding parts, 2A-back pressure chamber, 21-guide part, 3-valve member, 3b-stream, 31-valve element, 32-fixed seat, 32a-platform
Rank portion, 33-top cylinder portion, 3a-guiding path, 3b-guiding path, 4-bearing, 4 '-shield bearing, 5-connecting rod, 5 '-
Connecting rod, 5a-nut, 5b-Zong Junya roads, 5c-Heng Junya roads, 6-filter screen (dust proof member), 7-packing ring (dustproof part
Part), 10-stepper motor (electro-motor), X-axis.
Embodiment
Next, referring to the drawings, the embodiment of the motor-driven valve of the present invention is illustrated.Fig. 1 is first embodiment
Motor-driven valve closed valve state longitudinal section, Fig. 2 is Fig. 1 enlarged view of the main part.In addition, in the following description " on
Under " concept corresponding to Fig. 1 drawing up and down.
The motor-driven valve of the embodiment has valve casing 1, in valve casing 1 formed with valve chamber 1A.In addition, for valve casing 1, under
End is formed with the circular valve port 11 of the section centered on axis X, on valve chamber 1A top formed with the cylindric of insertion
It is oriented to embedded hole 12.The end of the valve chamber 1A sides of valve port 11 forms valve seat 11a.Moreover, it is provided with valve casing 1 from side and valve
The junction block 13 of room 1A connections, and junction block 14 is installed in a manner of being connected with valve port 11.In addition, junction block 13,14 is logical
Cross solder brazing and be anchored on valve casing 1.
Cylindric valve guide 2 is installed being oriented to embedded hole 12.Valve guide 2, which is embedded in, to be oriented in embedded hole 12,
The inner circumferential top for being oriented to embedded hole 12 is screwed in, and is riveted in the upper end of valve casing 1, so as to be anchored on valve casing 1.The valve guide 2
The guide part 21 that is formed with the drum of axle centered on axis X, the cap 22 for the upper end for covering guide part 21 and
In the cylindric external screw thread maintaining part 23 of the path that the center of cap 22 is formed.Guide part 21, which has, surrounds cylindrical space
Spigot surface 2a.In addition, in cap 22 formed with guiding path 22a, in external screw thread maintaining part 23 formed with slotting for connecting rod 5 described later
Logical inserting hole 23a.In addition, it is fastened with external screw thread axle 24 in external screw thread maintaining part 23.Piston-like is equipped in guide part 21
Valve member 3.
Valve member 3 and the spigot surface 2a of the inner circumferential of valve guide 2 slip, can be in axis X side relative to valve guide 2
Upward sliding.Valve member 3 be formed with the valve element 31 of hollow cylinder shape, cover valve element 31 upper end fixed seat 32, with
And it is formed at the top cylinder portion 33 of the center upper portion of fixed seat 32.There is valve element 31 the spigot surface 2a with valve guide 2 to slip
Outer peripheral face.It is in addition, embedding formed with guide groove 3G, the SDeflector 2G of the side of valve guide 2 at a position of the periphery of valve element 31
Together in guide groove 3G.Thus, the rotation around axis X of valve member 3 is limited, and turning into can only move up in axis X side.
In addition, sealing 34 is installed in a manner of being fixed on fixed seat 32 in the periphery in top cylinder portion 33, the sealing
Portion 34 possesses to L-shaped seal for being sealed between the outer peripheral face of valve element 31 and the spigot surface 2a of valve guide 2 etc..The sealing
When valve member 3 moves along valve guide 2, also the spigot surface 2a all the time with valve guide 2 slips in portion 34.Moreover, valve member 3
A part be accommodated in valve guide 2, the interior space of valve guide 2 is divided by sealing 34, so as in valve guide 2
Form the back pressure chamber 2A relative with valve member 3.
The interior space 3A of the inner side of valve member 3 is by the outer space 3A1 of the side of valve port 11 and the inner space of the side of fixed seat 32
3A2 is formed.The position by fixed seat 32 in inner space 3A2 possesses the bearing 4 as " swivel bearing ".Bearing 4 includes interior
Ring 41, outer shroud 42 and multiple balls 43, inner ring 41 are fixed on the end of connecting rod 5 by nut 5a.In addition, in bearing 4
Outer shroud 42 and the embedded inwall of valve element 31 snap ring 31b between be equipped with disc spring 35, the disc spring 35 is relative to bearing 4, to valve element
31 exert a force to the direction of valve port 11.Thus, when connecting rod 5 rises from Fig. 1 state, bearing 4 also rises, and only outer shroud 42 abuts
In the fixed seat 32 of valve member 3, valve member 3 is connected bar 5 and kept via bearing 4.
In addition, the filter screen 6 as " dust proof member " is equipped between disc spring 35 and snap ring 31b.Filter screen 6 is for example by metal
Mesh (wire netting) is formed, and the filter screen 6 is by the way that the flange part of surrounding is clamped to be fixed on valve element with disc spring 35 and snap ring 31b
31 inner side.In addition, in the fixed seat 32 of valve member 3 and top cylinder portion 33 formed with guiding path 3a, by the inner side of valve member 3
Space 3A2 and back pressure chamber 2A conductings.
There is external thread part 24a in periphery in the external screw thread axle 24 that the external screw thread maintaining part 23 of valve guide 2 is fastened, and
And there is through hole 24b in axis X.Moreover, connecting rod 5 penetrates guiding path 3a, the inserting hole of valve guide 2 of valve member 3
23a and external screw thread axle 24 through hole 24b, it is extended to the stepper motor 10 as " electro-motor ".Connecting rod 5 is formed
For the shaft-like of section circle, the connecting rod 5 can be slided in the through hole 24b interior edge axis Xs direction of outer thread spindle 24.In addition,
Fixed metal parts 51 is fastened with by welding etc. in the upper end of connecting rod 5.
The lid shell 15 of plate-like is airtightly fastened with by solder brazing on the top of valve casing 1, passes through welding in the lid shell 15
Deng and be airtightly fixed with the housing 10A of stepper motor 10.Rotor 10B can be rotatably configured with housing 10A.Rotor
10B includes interior threaded part 10a, internal thread frame 10b from inner side, links metal parts 10c, magnet 10d successively.Link metal zero
Part 10c links internal thread frame 10b and magnet 10d.In addition, the above-mentioned fixed metal parts 51 of connecting rod 5 is being anchored on linking
Disc spring 10e is assembled between metal parts 10c, the inside threaded frame 10b sides of connecting rod 5 are exerted a force.
In interior threaded part 10a inner side formed with internal thread part 10a1.Moreover, internal thread part 10a1 is threaded into
The external thread part 24a of the periphery of external screw thread axle 24.Moreover, it is equipped with stator unit 10C, stepping in rotor case 10A periphery
Motor 10 to stator unit 10C stator coil by applying pulse signal, so that rotor 10B rotates according to the umber of pulse.
In addition, the top plate portion in rotor case 10A is provided with rotary position-limit mechanism 20, the rotary position-limit mechanism 20 is by spirally-guided wire body
20a and the movable limiting component 20b compositions that rotation is stirred by rotor 10B pole 10f.
Structure more than, according to the driving of stepper motor 10, rotor 10B rotations, pass through external screw thread axle 24 and interior spiral shell
Line part 10a feed screw mechanism, connecting rod 5 and valve member 3 move up and down on axis X direction.Thus, the quilt of valve member 3
Valve guide 2 is oriented to, and relative to the above-mentioned valve seat 11a formed around valve port 11 disseat/take a seat.Thus, to valve
Mouth 11 is opened and closed.In addition, connecting rod 5 is rotated by the feed screw mechanism around axis X, but by the use of being used as " rotary shaft
Hold " bearing 4 effect, the revolving force will not be transferred to valve member 3.
The motor-driven valve of the embodiment is used to control following two flowings：Fluid (refrigerant) flowed into from junction block 13 and from
The second flowing that the first flowing and fluid that junction block 14 flows out are flowed into from junction block 14 and flowed out from junction block 13.That is,
In one flowing, junction block 13 is inflow entrance, and junction block 14 is flow export, and in the second flowing, junction block 14 is inflow entrance, joint
Pipe 13 is flow export.Here, the inner ring 41 of the outer space 3A1 of valve member 3, inner space 3A2, bearing 4, outer shroud 42 and ball
43 gap, guiding path 3a constitute " pressing stream " that valve port 11 and back pressure chamber 2A are turned on and pressed.Thus,
When first-class, the low pressure of valve port 11 imports back pressure chamber 2A via above-mentioned " pressing stream ".In addition, when second flows, valve port 11
The high pressure of side imports back pressure chamber 2A via " pressing stream ".Therefore, to valve member 3 from valve port 11 and back pressure chamber 2A double side actings
Identical pressure.Thus, because of caused by the high pressure of fluid and the pressure difference of low pressure power to valve member 3 on axis X direction mutually
Offset, keep pressure balance.
During valve closing, the fluid flowed into from valve port 11 flows into back pressure chamber 2A via above-mentioned " pressing stream ".Now, filter screen 6
Prevent foreign matter from being flowed into from outer space 3A1 to inner space 3A2 in valve element 31.Therefore, filter screen 6 is formed in this presses stream
Prevent " dust proof member " that foreign matter flows into bearing 4.
Fig. 3 is the longitudinal section of the closed valve state of the motor-driven valve of second embodiment, and Fig. 4 (A) to Fig. 4 (C) is Fig. 3 master
Magnified partial view and major part vertical view cutaway drawing are wanted, Fig. 4 (B) is Fig. 4 (A) A-A sections, and Fig. 4 (C) is Fig. 4 (A) B-
B sections.In addition, below in second embodiment into the 4th embodiment, pair marked with first embodiment identical unit
With Fig. 1 and Fig. 2 identical symbols, appropriate the repetitive description thereof will be omitted.
In this second embodiment, in valve member 3, the inner space 3A3 of the side of fixed seat 32 in interior space 3A is made
Internal diameter it is bigger than the inner space 3A2 of first embodiment internal diameter.Thus, formed with stream 3b around bearing 4.Separately
Outside, in this second embodiment, four stage portions are formed in the inner side (inner space 3A3 sides) of the fixed seat 32 of valve member 3
32a so that when bearing 4 is moved to 32 side of fixed seat, the outer shroud 42 of bearing 4 is connected to stage portion 32a.Thus, adjacent platform
Space between rank portion 32a, 32a turns into radial flow path 32A (reference picture 4 (C)).That is, it is connected to stage portion 32a in outer shroud 42
When, the part of radial flow path 32A outer circumferential side is also to stream 3b inner openings, therefore radial flow path 32A is by above-mentioned stream 3b
All the time it is communicated in guiding path 3a, it is ensured that " pressing stream ".
Moreover, in this second embodiment, it is equipped between the inner ring 41 of bearing 4 and nut 5a as " dustproof part
The packing ring 7 of part ".As shown in Fig. 4 (A), there is the gap at interval [d] between the outer peripheral edge 7a and disc spring 35 of packing ring 7, via this
Gap, fluid can be also flowed into bearing 4.But the interval in the gap [d] will not invade the degree in bearing 4 for foreign matter
Interval.
Therefore, in this second embodiment, the periphery of the outer space 3A1 of valve member 3, interior survey space 3A3, bearing 4
Radial flow path 32A, guiding path 3a between stream 3b, stage portion 32a, 32a constitute by valve port 11 and back pressure chamber 2A conducting and
" the pressing stream " pressed.Moreover, packing ring 7 constitutes " dust proof member " for preventing that foreign matter from flowing into bearing 4.
Fig. 5 is the longitudinal section of the closed valve state of the motor-driven valve of the 3rd embodiment, and Fig. 6 (A) to Fig. 6 (C) is Fig. 5 master
Magnified partial view and major part vertical view cutaway drawing are wanted, Fig. 6 (B) is Fig. 6 (A) A-A sections, and Fig. 6 (C) is Fig. 6 (A) B-
B sections.
In the 3rd embodiment, substitute the bearing 4 of second embodiment, " rotary shaft is used as using shield bearing 4 '
Hold ".Other constructions are identical with second embodiment, in valve member 3, using the big inner space 3A3 of internal diameter in shield bearing
Around 4 ' formed stream 3b, in addition, valve member 3 fixed seat 32 inner side formed with four stage portion 32a.
As shown in fig. 6, shield bearing 4 ' is made up of inner ring 44, outer shroud 45, multiple balls 46 and sealing plate 47, inner ring 44
The end of connecting rod 5 is fixed on by nut 5a.Then, when connecting rod 5 rises, shield bearing 4 ' also rises, only outer shroud
45 are connected to the fixed seat 32 (stage portion 32a) of valve member 3, and valve member 3 is connected bar 5 and kept via shield bearing 4 '.It is close
Shrouding 47 is disposed between inner ring 44 and outer shroud 45, and the sealing plate 47, which constitutes, prevents foreign matter between inner ring 44 and outer shroud 45
" dust proof member " that the side of ball 46 flows into.In addition, in the 3rd embodiment, also fixed seat 32 is moved in shield bearing 4 '
During side, the outer shroud 45 of shield bearing 4 ' is connected to stage portion 32a, and the radial flow path 32A between adjacent stage portion 32a, 32a begins
Above-mentioned stream 3b is communicated in eventually, it is ensured that " pressing stream ".
Fig. 7 is the longitudinal section of the closed valve state of the motor-driven valve of the 4th embodiment, and Fig. 8 (A) to Fig. 8 (C) is Fig. 7 master
Magnified partial view and major part vertical view cutaway drawing are wanted, Fig. 8 (B) is Fig. 8 (A) A-A sections, and Fig. 8 (C) is Fig. 8 (A) B-
B sections.
In the 4th embodiment, substitute the bearing 4 of first embodiment, be configured to, using with the 3rd embodiment
Same shield bearing 4 ', and remove the filter screen 6 of first embodiment.In addition, the connecting rod 5 of substitution first embodiment,
Use the connecting rod 5 ' of the part overstriking of the guiding path 3a inserts in valve member 3.Other structures are identical with first embodiment.
Connecting rod 5 ' center formed with：The Zong Junya roads extended upward from the inner space 3A2 sides of valve member 3 along axis X
5b；And intersect with axis X and be connected with Zong Junya roads 5b, to the Heng Junya roads 5c of guiding path 3a inner openings.
In the 4th embodiment, shield bearing 4 ' is also by inner ring 44, outer shroud 45, multiple balls 46 and sealing plate 47
Form, inner ring 44 is fixed on the end of connecting rod 5 ' by nut 5a.Then, sealing plate 47, which constitutes, prevents foreign matter to inner ring
" dust proof member " that the side of ball 46 between 44 and outer shroud 45 flows into.In addition, in the 4th embodiment, valve member 3 it is interior
Space 3A, the Zong Junya roads 5b of connecting rod 5 ' and Heng Junya roads 5c, guiding path 3a are constituted valve port 11 and back pressure chamber 2A conductings
And " pressing stream " pressed.In this embodiment, pressed in connecting rod 5 ' formed with the vertical of " pressing stream " is formed
Road 5b and Heng Junya road 5c, therefore, it is possible to by pressing stream to press back pressure chamber 2A and valve port 11 rapidly, improve flow control
The response performance of system.
In addition, for connecting rod 5 ' and the guiding path 3a of valve member 3 gap, guiding path 3a diameter is big, therefore energy
Enough fluid is fully flowed, still, as variation, can also connecting rod 5 ' by Zong Junya roads 5b further up side compared with
It is extended longly, Shi Hengjunya roads 5c is to back pressure chamber 2A inner openings.
More than, referring to the drawings embodiments of the present invention are carried out with detailed narration, but specific structure is not limited to these
Embodiment, do not depart from change of design in the range of spirit of the invention etc. and be also included in the present invention.
Claims (4)
1. a kind of motor-driven valve, it possesses：
The guide part of drum, it is disposed in valve casing；
Valve port, it is formed in the inflow entrance flowed into for fluid and between the flow export of fluid outflow；
Valve member, it can be slidably disposed in above-mentioned guide part, and above-mentioned valve port is opened and closed；
Connecting rod, it is moved in the axial direction by the rotation and feed screw mechanism of the rotor of electro-motor；And
Swivel bearing, it is fixed on above-mentioned connecting rod,
Above-mentioned valve member is held in above-mentioned connecting rod via above-mentioned swivel bearing, and relative to above-mentioned valve member and with it is above-mentioned
The back pressure chamber of valve port opposite side and the valve port are turned on by pressing stream, so that the Fluid pressure of the back pressure chamber and above-mentioned
The Fluid pressure uniformity of valve port,
Said electric valve is characterised by,
Possesses the dust proof member for above-mentioned swivel bearing in the inside of above-mentioned valve member.
2. motor-driven valve according to claim 1, it is characterised in that
Above-mentioned dust proof member is filter screen, and the filter screen is disposed in the above-mentioned valve port side of the inside of above-mentioned valve member.
3. motor-driven valve according to claim 1, it is characterised in that
Above-mentioned dust proof member is packing ring, the packing ring located at the end of the above-mentioned valve port side of above-mentioned swivel bearing, and with the rotary shaft
Hold and be together installed on above-mentioned connecting rod.
4. motor-driven valve according to claim 1, it is characterised in that
Above-mentioned swivel bearing is shield bearing, and above-mentioned dust proof member is the sealing plate of above-mentioned shield bearing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-095598 | 2016-05-11 | ||
| JP2016095598A JP6527837B2 (en) | 2016-05-11 | 2016-05-11 | Motorized valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366772A true CN107366772A (en) | 2017-11-21 |
Family
ID=60303729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710283574.8A Pending CN107366772A (en) | 2016-05-11 | 2017-04-26 | Motor-driven valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6527837B2 (en) |
| CN (1) | CN107366772A (en) |
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| CN110094524B (en) * | 2018-01-31 | 2022-12-20 | 浙江三花商用制冷有限公司 | Electric valve |
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| KR20220020403A (en) * | 2018-08-17 | 2022-02-18 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | Electronic expansion valve |
| JP7244640B2 (en) * | 2018-12-25 | 2023-03-22 | 浙江盾安人工環境股▲ふん▼有限公司 | Electronic expansion valve and air conditioning system using this electronic expansion valve |
| 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 |
| CN114076208B (en) * | 2020-08-20 | 2024-01-02 | 株式会社鹭宫制作所 | Flow control valve and refrigeration cycle system |
| JP7414024B2 (en) * | 2021-01-21 | 2024-01-16 | 富士電機機器制御株式会社 | electromagnetic contactor |
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| CN110617337A (en) * | 2018-06-20 | 2019-12-27 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN110617337B (en) * | 2018-06-20 | 2021-11-16 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN114233878A (en) * | 2018-06-20 | 2022-03-25 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN114233878B (en) * | 2018-06-20 | 2024-01-30 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN111365466A (en) * | 2018-12-25 | 2020-07-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve and air conditioning system using same |
| CN111379863A (en) * | 2018-12-28 | 2020-07-07 | 浙江三花制冷集团有限公司 | Flow control valve |
| CN111486238A (en) * | 2019-01-25 | 2020-08-04 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN111486238B (en) * | 2019-01-25 | 2022-11-08 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN111795155A (en) * | 2019-04-02 | 2020-10-20 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| WO2023066116A1 (en) * | 2021-10-20 | 2023-04-27 | 浙江盾安人工环境股份有限公司 | Valve needle component, and flow regulating valve having same |
| WO2023066115A1 (en) * | 2021-10-20 | 2023-04-27 | 浙江盾安人工环境股份有限公司 | Valve head structure and flow regulating valve having same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6527837B2 (en) | 2019-06-05 |
| JP2017203508A (en) | 2017-11-16 |
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