CN108571598B - Motor-driven valve and refrigerating circulation system - Google Patents
Motor-driven valve and refrigerating circulation system Download PDFInfo
- Publication number
- CN108571598B CN108571598B CN201810141356.5A CN201810141356A CN108571598B CN 108571598 B CN108571598 B CN 108571598B CN 201810141356 A CN201810141356 A CN 201810141356A CN 108571598 B CN108571598 B CN 108571598B
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- mentioned
- valve
- motor
- support member
- metal parts
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- 239000002184 metal Substances 0.000 claims abstract description 62
- 229910052751 metal Inorganic materials 0.000 claims abstract description 62
- 238000003466 welding Methods 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000007789 sealing Methods 0.000 abstract description 27
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 7
- 238000007711 solidification Methods 0.000 description 7
- 230000008023 solidification Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005428 wave function Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a kind of motor-driven valve (100), in the motor-driven valve made of relative to valve casing (1) assembling support member (2) and sealing shell (3), keeps the wall thickness of the component of valve casing (1) thinning and make the handling ease of the fixation metal parts (23) of support member (2) and sealing shell (3) and realize miniaturization.Support member (2) by the opening for the cylinder for being inserted into valve casing (1) base portion (21), cradle portion (22) and be set to the periphery of base portion (21) and the fixation metal parts (23) that is inserted into the inner circumferential of valve casing (1) together with base portion (21) is constituted.It by base portion (21) and fixed metal parts (23) insertion or is pressed into the inside of valve casing (1) along the direction axis L.Fixed metal parts (23) and valve casing (1) are fixed by welding etc. in this state.
Description
Technical field
The present invention relates to the motor-driven valve used in refrigerating circulation system etc. and refrigerating circulation systems.
Background technique
Now, as this motor-driven valve, such as have and disclosed in Japanese Unexamined Patent Publication 2016-89870 bulletin (patent document 1)
Motor-driven valve.The motor-driven valve makes to turn by the rotation of the magnet rotor and armature spindle of stepper motor via feed screw mechanism
Sub- axis and valve member move forward and backward, to be controlled by aperture of the valve member to valve port.Also, armature spindle is by support member branch
Support.In addition, needing the flow path of sealing fluid in this motor-driven valve, closed structure is being formed together with the valve casing as valve body
The magnet rotor of motor part is accommodated in the sealing shell (tank) for the cylindrical shape made.Moreover, support member and sealing shell group
It is fixed loaded on valve casing and by welding etc..
Existing technical literature
Patent document 1: Japanese Unexamined Patent Publication 2016-89870 bulletin
Summary of the invention
Problems to be solved by the invention
Fig. 8 is the figure for showing the fixture construction of support member and sealing shell in above-mentioned existing motor-driven valve, in figure
Symbol L be the center as valve casing 10 and support member 20 axis.In the existing technology, by support member 20
The parameatal end face 10a that a part is inserted into the opening of valve casing 10 and fixed metal parts 20a is made to be connected to valve casing 10.
Moreover, fixing the abutting portion of the fixation metal parts 20a and valve casing 10 by welding.Also, sealing shell 30 also by
Weld and be fixed on the end face 10a of the opening of valve casing 10.
In this way, in existing technology, the parameatal identical end face of valve casing as continuing surface and is passed through welding
Come fixed support part and sealing shell, to be necessary to ensure that the parameatal end face for making fixed metal parts ride over valve casing
Area.Therefore, the thickness of the component of valve casing thickens, to there is following problem.Valve casing is being manufactured by punch process
In the case where, machining load becomes larger due to the wall thickness of component becomes larger, so that the difficulty of processing is got higher, the management of product becomes difficult, and
And cost is got higher.Also, as pressure vessel, need more than a large amount of material needed.In addition, becoming larger phase with the wall thickness of component
The outer dimension of Ying Di, valve casing become larger.
Problem of the present invention is that made of being assembled in the support member for supporting armature spindle on axis relative to valve body
In motor-driven valve, the configuration of the fixation metal parts of support member is improved to reduce the increase of the thickness of the component of valve body.
The motor-driven valve of scheme 1 moves forward and backward valve member to control opening for valve port by the rotation of the armature spindle of motor part
Degree, and be assembled on axis relative to the cylindrical shape and metal valve body for being built-in with above-mentioned valve member support it is above-mentioned
The support member of armature spindle forms, and said electric valve is characterized in that, above-mentioned support member, which has, is inserted into above-mentioned valve body
Cylinder opening in base portion and set on above-mentioned base portion periphery and be inserted into above-mentioned valve body together with the base portion
The fixation metal parts in week is inserted into along above-mentioned axis direction the inside, simultaneously of above-mentioned valve body in above-mentioned fixed metal parts
And a part of above-mentioned fixed metal parts from above-mentioned valve body exposing in the state of, to above-mentioned fixed metal parts and above-mentioned valve
Main body is fixed.
The motor-driven valve of scheme 2 is characterized in that, in the motor-driven valve documented by scheme 1, the above-mentioned base of above-mentioned support member
At least one party of portion and above-mentioned fixed metal parts is press-fit into above-mentioned valve body.
The motor-driven valve of scheme 3 is characterized in that, in the motor-driven valve documented by scheme 1, above-mentioned valve body has above-mentioned open
It large-diameter portion, the diameter small diameter portion smaller than the diameter of above-mentioned large-diameter portion of mouthful side and contracts from above-mentioned large-diameter portion to above-mentioned small diameter portion
The above-mentioned base portion of the tapered portion of diameter, above-mentioned support member is press-fit into the above-mentioned small diameter portion of above-mentioned valve body.
The motor-driven valve of scheme 4 is characterized in that, in 1 to 3 any one of scheme in documented motor-driven valve, above-mentioned fixed gold
Belong to flat part of the part by the ring discoid centered on above-mentioned axis and the periphery from above-mentioned flat part is parallel with above-mentioned axis
The side surface part that ground extends is constituted, and above-mentioned side surface part is set to the periphery of above-mentioned base portion.
The motor-driven valve of scheme 5 is characterized in that, in 1 to 4 any one of scheme in documented motor-driven valve, above-mentioned support portion
The above-mentioned base portion of part is formed from a resin, and above-mentioned support member is to be insert-molded above-mentioned fixed metal parts together with above-mentioned base portion
Made of component.
The motor-driven valve of scheme 6 is characterized in that, in 1 to 5 any one of scheme in documented motor-driven valve, above-mentioned fixed gold
Belong to part and above-mentioned valve body is fixed by welding.
The refrigerating circulation system of scheme 7 includes compressor, condenser, expansion valve and evaporator, above-mentioned refrigerating cycle system
System is characterized in that documented motor-driven valve is as above-mentioned expansion valve in 1 to 6 any one of operational version.
The effect of invention is as follows.
According to the motor-driven valve of scheme 1 to 6, due to being inserted into support member and fixed gold in the axial direction relative to valve body
Belong to part, so do not need that the space for configuring fixed metal parts is arranged in the end face of the opening of valve body, from without
The component (plate etc.) of valve body is set to thicken.Therefore, the processing of valve body becomes easy and the management of product becomes easy, and
The material of needs is needed not exceed, so as to reduce cost.Further, it is possible to reduce the outer dimension of valve body.
According to the motor-driven valve of scheme 2, since the base portion of support member and at least one party of fixed metal parts are pressed into
To valve body, so support member becomes accurately relative to the centering of valve body, and assembling operation is become easy.
According to the motor-driven valve of scheme 3, since the base portion of support member is press-fit into the small diameter portion of valve body, so propping up
It when the assembling of support part part, is pressed into using tapered portion guide bases to small diameter portion, so that assembling operation becomes easy.
According to the motor-driven valve of scheme 4, be formed as flat part and side surface part using ring discoid due to fixed metal parts
The shape of base portion is substantially covered, so the fixation metal parts matches with base portion, can be ensured using fixed metal parts
The fastness of base portion.
According to the motor-driven valve of scheme 5, since support member is to be insert-molded shape by that will fix metal parts and base portion
At component, so assembling when, the operation of support member becomes easy.
According to the motor-driven valve of scheme 6, fixed metal parts and valve body can be firmly fixed.
According to the refrigerating circulation system of scheme 7, effect identical with scheme 1 to 6 is obtained.
Detailed description of the invention
Fig. 1 is the longitudinal section view of the motor-driven valve of first embodiment of the invention.
Fig. 2 is the enlarged cross-sectional view of the fixation metal parts in the motor-driven valve of first embodiment.
Fig. 3 is putting for the assembled part of valve casing in the motor-driven valve of first embodiment, support member and sealing shell
Big cross-sectional view.
Fig. 4 is putting for the assembled part of valve casing in the motor-driven valve of second embodiment, support member and sealing shell
Big cross-sectional view.
Fig. 5 is putting for the assembled part of valve casing in the motor-driven valve of third embodiment, support member and sealing shell
Big cross-sectional view.
Fig. 6 is putting for the assembled part of valve casing in the motor-driven valve of the 4th embodiment, support member and sealing shell
Big cross-sectional view.
Fig. 7 is the figure for showing the refrigerating circulation system of embodiment.
Fig. 8 is the enlarged cross-sectional view of the assembled part of valve casing in existing motor-driven valve, support member and sealing shell.
In figure:
1-valve casing (valve body), 1a-annular end face, 1R-valve chamber, the 11-the first junction block, the 12-the second junction block,
13-valve cup rings, 13a-valve port, 2-support members, 2a-internal thread part, 2b-pilot hole, 21-base portions, 22-cradle portions,
23-fixed metal parts, 231-flat parts, 232-side surface parts, 3-sealing shells, 4-stepper motors (motor part), 41-
Armature spindle, 41a-external thread part, 42-magnet rotors, 43-stator coils, 5-needle-valves (valve member), 6-vavle shelves, P-are molten
Melt solidification portion, Q-melting and solidification portion, 1 '-valve casing (valve body), 1A-large-diameter portion, 1B-small diameter portion, 1C-tapered portion,
21 '-base portions, 232 '-side surface parts, 21 "-base portion, L-axis, 100-motor-driven valves, 200-outdoor heat exchangers, rooms 300-
Interior heat exchanger, 400-flow channel switching valves, 500-compressors.
Specific embodiment
Next, being illustrated referring to embodiment of the attached drawing to motor-driven valve and refrigerating circulation system of the invention.Fig. 1
It is the longitudinal section view of the motor-driven valve of first embodiment, Fig. 2 is the fixation metal parts in the motor-driven valve of first embodiment
Enlarged cross-sectional view, Fig. 3 are the assembled parts of valve casing in the motor-driven valve of first embodiment, support member and sealing shell
Enlarged cross-sectional view.In addition, the concept of " upper and lower " in the following description with it is corresponding up and down in Fig. 1.
The motor-driven valve 100 have the valve casing 1 as " valve body ", support member 2, sealing shell 3, as " motor part "
Stepper motor 4, needle-valve 5 and vavle shelf 6 as " valve member ".
Valve casing 1 is shaped generally as cylindrical shape such as the metal as brass, stainless steel, and has valve chamber on the inside of it
1R.It is connected with the first junction block 11 be connected with valve chamber 1R in the periphery unilateral side of valve casing 1, and is being extended downward from lower end
Cylindrical portion is connected with the second junction block 12.Also, being fitted into the side valve chamber 1R of the second junction block 12 has valve cup ring 13.Valve cup ring 13
Inside become valve port 13a, the second junction block 12 is connected via valve port 13a with valve chamber 1R.In addition, the first junction block 11,
Two junction blocks 12 and valve cup ring 13 pass through solder brazing etc. and are fixed on valve casing 1.
Support member 2 have a part be inserted into the base portion 21 in valve casing 1, from base portion 21 into 4 side of stepper motor
It erects the cradle portion 22 of setting and fixes metal parts 23 in centre.Base portion 21 and cradle portion 22 are formed from a resin.As shown in Fig. 2,
Fixed metal parts 23 is formed such as the punch process by metal plate brass, stainless steel, and is formed as making diagram
The shape of rotary body obtained from cross sectional shape (oblique line portion) is rotated centered on axis L.The fixation metal parts 23 is by with axis
The slim cylinder that the flat part 231 of ring discoid centered on line L and periphery from flat part 231 and axis L are extended parallel to
The side surface part 232 of shape is constituted.Moreover, fixed metal parts 23 is and being insert-molded with the base portion 21 and bracket of resin
Portion 22 is wholely set.A part of flat part 231 is located in base portion 21 as a result, and side surface part 232 is located at the periphery of base portion 21.
Moreover, support member 2 is assembled in valve casing 1 as being described below, via fixed metal parts 23 and pass through
Weld and be fixed on the upper end of valve casing 1.In addition, in the present embodiment, fixing by welding, but hard pricker can also be passed through
Weldering etc. is fixed, or the additional fixation member for support member 2 to be fixed on to valve casing 1 and passes through the methods appropriate such as riveting
To fix.Also, it is centrally formed with the internal thread part 2a and its threaded hole coaxial with axis L in support member 2, and is formed
The pilot hole 2b for the cylindrical shape for having diameter bigger than the diameter of the threaded hole of internal thread part 2a.
Sealing shell 3 is formed as the approximate cylinder shape that upper end is blocked, and is airtightly fixed on valve by welding
The upper end of shell 1.Top in sealing shell 3, which is fitted into, guide part holding cylinder 31, in the center of the guide part holding cylinder 31
Canister portion 31a has been embedded in guide part 32, and guide part 32 has pilot hole 32a in center.It is equipped in the periphery of canister portion 31a for filling
Movable limiting component 34 with spirally-guided wire body 33 and with the thread binding of spirally-guided wire body 33.
Stepper motor 4 is by armature spindle 41, the magnet rotor 42, opposite for the inside that can be rotatably disposed in sealing shell 3
It is opposed to be configured at the stator coil 43 of the periphery of sealing shell 3 and other yoke portions (not shown), exterior in magnet rotor 42
Component etc. is constituted.Armature spindle 41 is installed on the center of magnet rotor 42 via bushing 421, and in the support member of the armature spindle 41
The periphery of 2 sides is formed with external thread part 41a.Moreover, external thread part 41a and the internal thread part 2a of support member 2 are screwed.
Support member 2 supports armature spindle 41 on axis L as a result,.Also, the upper end of armature spindle 41 is rotatably embedded in guiding
In the pilot hole 32a of part 32.
Needle-valve 5 has needle-like portion 51 and lug boss 52 of the insert in valve port 13a, and lug boss 52 is fixed under vavle shelf 6
End.
Vavle shelf 6 is cylindric component, is entrenched in the pilot hole 2b of support member 2 and be set as can be along the axis side L
To sliding.In vavle shelf 6, spring base 61 can be movably equipped with along the direction axis L, and between spring base 61 and needle-valve 5 with
The state for being endowed ordinance load is equipped with compression helical spring 62.Moreover, in the pilot hole 2b of support member 2, vavle shelf 6
Upper end is sticked in the state branch of the lower end of armature spindle 41, vavle shelf 6 and needle-valve 5 by armature spindle 41 can rotatably suspend in midair
Support.
Structure more than utilization, magnet rotor 42 and armature spindle 41 are rotated by the driving of stepper motor 4, and are turned
Sub- axis 41 is using the feed screw mechanism of the external thread part 41a of armature spindle 41 and the internal thread part 2a of support member 2 and along axis L
Direction is mobile.Moreover, needle-valve 5 moves along the direction axis L and approaches or separate relative to valve cup ring 13.Valve port is controlled as a result,
The aperture of 13a, and then control from the first junction block 11 to the second junction block 12 or from the second junction block 12 to the first junction block
The flow of the refrigerant of 11 flowings.
Also, it is formed with protrusion 42a in magnet rotor 42, protrusion 42a is pushed with the rotation of magnet rotor 42
Movable limiting component 34 rotates, and thus movable limiting component 34 is and the thread binding with spirally-guided wire body 33 in revolution
It moves up and down.Moreover, movable limiting component 34 limits rotor by being connected to the lower end limiter 33a of spirally-guided wire body 33
The lowest positions of axis 41 (and magnet rotor 42).Also, movable limiting component 34 is by being connected to guide part holding cylinder 31
Upper end limiter 31b limit the top position of armature spindle 41.
In this way, motor-driven valve 100 is following motor-driven valve: making needle by the rotation of the armature spindle 41 of stepper motor 4 (motor part)
Valve 5 (valve member) moves forward and backward to control the aperture of valve port 13a, and relative to the cylindrical shape and gold for being built-in with needle-valve 5
The valve casing 1 (valve body) for belonging to system, which is assembled on axis L, supports the support member 2 of armature spindle 41 to form.
In addition, as described above, the lowest positions of armature spindle 41 (and magnet rotor 42) by 3 side of sealing shell can
Dynamic limiting component 34 is connected to lower end limiter 33a and is limited, but is such as shown below in the assembling of sealing shell 3
Like that.Firstly, when the assembly for being assembled with armature spindle 41 etc. in support member 2 is installed on valve casing 1, so that needle-valve 5 and valve
The positional relationship of mouth 13a becomes intrusion of the mode of rated condition to support member 2 relative to valve casing 1 and is adjusted.Moreover,
So that armature spindle 41 (and magnet rotor 42) is become lowest positions and movable limiting component 34 is made to be connected to lower end limiter
In the state of 33a, become position as position corresponding with the protrusion 42a of magnet rotor 42 in the movable limiting component 34
Place's assembling sealing shell 3.
In the first embodiment, as shown in figure 3, the side surface part 232 of the fixation metal parts 23 of support member 2 is along axis
The direction L is pressed into or is inserted into the specified position until the inside of valve casing 1, and fix the side surface part 232 of metal parts 23
A part of outer peripheral surface is exposed from the annular end face 1a of valve casing 1.Moreover, at the specified position, to the annular end face by valve casing 1
The inner corner portion that the outer peripheral surface that 1a and side surface part 232 are exposed is formed is welded, to form its melting and solidification portion P.In this way, by
It is welded in inner corner portion, so can be irradiated such as the laser of welding on relative to the inclined direction axis L.Cause
This, does not need to be welded relative to annular end face 1a from surface, turns so as to not be located at the magnetism on top of valve casing 1
The components such as son 42 interfere and are easy to carry out welding.Also, in the most peripheral of the annular end face 1a of valve casing 1, abut closed outer
The open end of the lower end of shell 3 welds the complete cycle of the abutment portion, to be formed with melting and solidification portion Q in complete cycle.By
This, support member 2 and sealing shell 3 are fixed on valve casing 1.
Fig. 4 is putting for the assembled part of valve casing in the motor-driven valve of second embodiment, support member and sealing shell
Big cross-sectional view.The difference of the second embodiment and first embodiment is the straight of a part of the base portion 21 ' of support member 2
Diameter this point identical as the fixed diameter of periphery of side surface part 232 of metal parts 23, other constructions are identical as Fig. 1.In addition,
Second embodiment below is into the 4th embodiment, to important document same as the first embodiment and corresponding important document mark
Symbol identical with Fig. 1 to Fig. 3 is infused, and the repetitive description thereof will be omitted and the diagram of overall construction.
In this second embodiment, the side surface part 232 of the fixation metal parts 23 of support member 2 and base portion 21 ' are along axis
The direction line L is pressed into or is inserted into the specified position until the inside of valve casing 1, and the side surface part 232 of fixed metal parts 23
Outer peripheral surface a part from the annular end face 1a of valve casing 1 expose.Moreover, at the specified position, to the looped end by valve casing 1
The inner corner portion that the outer peripheral surface that face 1a and side surface part 232 are exposed is formed is welded, to form its melting and solidification portion P.At this
In second embodiment, the base portion 21 ' of resin plays the role of guide part and is initially pressed into or is inserted into valve casing 1,
To which assembling operation becomes easy.
Fig. 5 is putting for the assembled part of valve casing in the motor-driven valve of third embodiment, support member and sealing shell
Big cross-sectional view.The difference of the third embodiment and second embodiment is the outer of the side surface part 232 ' of fixed metal parts 23
Diameter this point more slightly smaller than the outer diameter of base portion 21 ', other constructions are identical as second embodiment.
In the third embodiment, the base portion 21 ' of support member 2 is pressed into the inside until valve casing 1 along the direction axis L
Specified position, and the side surface part 232 ' of fixed metal parts 23 is inserted into the rule until the inside of valve casing 1 along the direction axis L
Positioning is set.Moreover, a part of the outer peripheral surface of the side surface part 232 ' of fixed metal parts 23 is revealed from the annular end face 1a of valve casing 1
Out.Also, at the specified position, the outer peripheral surface exposed by the annular end face 1a and side surface part 232 ' of valve casing 1 is formed
Inner corner portion is welded, to form its melting and solidification portion P.In the third embodiment, the base portion 21 ' of resin, which plays, leads
Effect to part, only the base portion 21 ' is press-fit into valve casing 1, to be easier assembling support portion compared with second embodiment
Part 2, and then assembling operation becomes to be more easier.
Fig. 6 is putting for the assembled part of valve casing in the motor-driven valve of the 4th embodiment, support member and sealing shell
Big cross-sectional view.The difference of 4th embodiment and third embodiment is the base portion 21 of support member 2 " diameter than fixing
The shape this point of the small this point of the outer diameter of the side surface part 232 ' of metal parts 2 and valve casing 1 '.Other constructions and third embodiment party
Formula is identical.
Valve casing 1 ' in 4th embodiment is configured to the large-diameter portion with the valve casing 1 in first embodiment with diameter
1A, diameter the small diameter portion 1B smaller than the diameter of large-diameter portion 1A and from large-diameter portion 1A to the tapered portion 1C of small diameter portion 1B undergauge.This
Outside, the shape of the valve casing 1 ' is to make the cross sectional shape (oblique line portion) of Fig. 6 with axis on the basis of valve casing 1 of first embodiment
The shape of rotary body (in addition to embedded hole as the first junction block 11) obtained from being rotated centered on L.
In the 4th embodiment, the base portion 21 of support member 2 " be pressed into along the direction axis L until valve casing 1 ' it is small
The specified position of the inside of diameter portion 1B, and the side surface part 232 ' of fixed metal parts 23 is inserted into until big along the direction axis L
The specified position of the inside of diameter portion 1A.Moreover, a part of the outer peripheral surface of the side surface part 232 ' of fixed metal parts 23 is from valve casing 1
Annular end face 1a expose.Also, at the specified position, exposed to by the annular end face 1a and side surface part 232 ' of valve casing 1 '
Outer peripheral surface formed inner corner portion welded, to form its melting and solidification portion P.In the 4th embodiment, tapered portion
Base portion 21 of the 1C relative to resin " play the role of guide part, it can be using tapered portion 1C guide bases 21 " to be pressed into
To small diameter portion 1B, to be easy assembling support member 2, and then assembling operation becomes to be more easier.Also, due to utilizing taper
Portion 1C is easy in valve casing 1 and forms gap on the top of small diameter portion 1B, so can will generate in the indentation of base portion 21
Burr is limited in the gap, thus will not butt welding connect etc. and to have an impact.In addition, in the case where such gap is arranged,
It can not be the inclined form as tapered portion 1C.For example, it can be the forms that step difference etc. is equipped in valve casing 1.
According to above each embodiment, due to relative to valve casing 1,1 ' along the direction axis L inserted with support member 2 and
Fixed metal parts 23, so not needing that the sky for configuring fixed metal parts is arranged in the annular end face 1a of valve casing 1,1 '
Between.The plate etc. for not needing to be used in forming valve casing 1,1 ' as a result, thickens.Therefore, the processing of valve casing 1,1 ' becomes easy and produces
Quality control reason becomes easy.Also, the material of needs is needed not exceed, so as to reduce cost.Further, it is possible to reduce valve casing 1,
1 ' outer dimension.Also, the base portion 21,21 ', 21 of support member 2 " is press-fit into at least one party of fixed metal parts 23
Valve casing 1, so that support member 2 becomes accurate relative to the centering of valve casing 1.
Also, be formed as the flat part 231 and side surface part 232,232 ' using ring discoid due to fixed metal parts 23
Substantially to cover base portion 21,21 ', 21 " a part shape, so can ensure base portion 21,21 ', 21 " fastness.And
And since support member 2 is will to fix metal parts 23 and 21,21 ', 21 " portion formed and being insert-molded together of base portion
Part, so the operation of support member becomes easy in assembling.
Fig. 7 is the figure for showing the refrigerating circulation system of embodiment.In figure, symbol 100 is the present invention for constituting expansion valve
Each embodiment motor-driven valve, 200 are mounted in the outdoor heat exchanger of outdoor unit, and 300 are mounted in the room of indoor unit
Interior heat exchanger, 400 be the flow channel switching valve for constituting four-way valve, and 500 be compressor.Motor-driven valve 100, outdoor heat exchanger 200, interior
Heat exchanger 300, flow channel switching valve 400 and compressor 500 are connected by conduit as illustrated respectively, to constitute
Heat-pump-type refrigerating cycle.In addition, the diagram of accumulator, pressure sensor and temperature sensor etc. is omitted.
The flow path of refrigerating cycle by flow channel switching valve 400 to refrigeration operation when flow path and flow path when heating operation
The switching of the two flow paths.In refrigeration operation, as shown in solid arrow in figure, by the compressed refrigerant of compressor 500 from stream
Road switching valve 400 is flowed into outdoor heat exchanger 200, which functions as condenser, and changes from outdoor
The liquid refrigerant that hot device 200 flows out is flowed into via motor-driven valve 100 and to indoor heat exchanger 300,300 conduct of indoor heat exchanger
Evaporator functions.
On the other hand, in heating operation, as indicated by a dashed arrow in the figure, by the compressed refrigerant of compressor 500 from
Flow channel switching valve 400 is according to indoor heat exchanger 300, motor-driven valve 100, outdoor heat exchanger 200, flow channel switching valve 400 and compression
The sequence of machine 500 recycles, and indoor heat exchanger 300 is functioned as condenser, and outdoor heat exchanger 200 is sent out as evaporator
Wave function.Motor-driven valve 100 carries out decompression expansion to the liquid refrigerant flowed into from outdoor heat exchanger 200 in refrigeration operation, or
Person carries out decompression expansion to the liquid refrigerant flowed into from indoor heat exchanger 300 in heating operation, and to the refrigerant
Flow is controlled.
More than, an embodiment is illustrated, but suitably set the wall of each section of fixed metal parts 23
Thickness.Such as the thickness of side surface part 232,232 ' is the thickness for the degree that can be welded with valve casing 1.Also, this implementation
The fixation metal parts 23 of mode is formed by punch process, but can also be formed by machining etc..Also, it is fixed
Metal parts 23 and the welding of valve casing 1,1 ' can be welded with complete cycle, but be not limited to complete cycle welding, can also be with local welding.
In addition, the fixation metal parts of embodiment is the circle that side surface part is extended parallel to from the periphery of flat part and axis
The form of barrel shape, but fixed metal parts is also configured to disc-shape.In this case, the portion of the periphery of disc-shape
Dividing is side surface part, so that a part of the side surface part is exposed to the open end of valve body, and to by open end and side surface part institute
The inner corner portion that the outer peripheral surface of exposing is formed is welded.
More than, embodiments of the present invention are described in detail referring to attached drawing, but specific structure is not limited to
These embodiments, the present invention also include the design alteration etc. not departed from the range of purport of the invention.
Claims (7)
1. a kind of motor-driven valve moves forward and backward valve member to control the aperture of valve port by the rotation of the armature spindle of motor part, and
And it is assembled on axis relative to the cylindrical shape and metal valve body for being built-in with above-mentioned valve member and supports above-mentioned rotor
The support member of axis forms, and said electric valve is characterized in that,
Above-mentioned support member has base portion in the opening for the cylinder for being inserted into above-mentioned valve body and set on the outer of above-mentioned base portion
The Zhou Bingyu base portion is inserted into the fixation metal parts of the inner circumferential of above-mentioned valve body together,
The inside of above-mentioned valve body, and above-mentioned fixed metal are inserted into along above-mentioned axis direction in above-mentioned fixed metal parts
A part of part is fixed above-mentioned fixed metal parts and above-mentioned valve body in the state of the exposing of above-mentioned valve body.
2. motor-driven valve according to claim 1, which is characterized in that
At least one party of the above-mentioned base portion of above-mentioned support member and above-mentioned fixed metal parts is press-fit into above-mentioned valve body.
3. motor-driven valve according to claim 1, which is characterized in that
Large-diameter portion, diameter of the above-mentioned valve body with above-mentioned the open side small diameter portion smaller than the diameter of above-mentioned large-diameter portion, Yi Jicong
Above-mentioned large-diameter portion to above-mentioned small diameter portion undergauge tapered portion,
The above-mentioned base portion of above-mentioned support member is press-fit into the above-mentioned small diameter portion of above-mentioned valve body.
4. motor-driven valve described in any one of claim 1 to 3, which is characterized in that
Above-mentioned fixed metal parts is by the flat part of the ring discoid centered on above-mentioned axis and from the periphery of above-mentioned flat part
The side surface part extended parallel to above-mentioned axis is constituted,
Above-mentioned side surface part is set to the periphery of above-mentioned base portion.
5. motor-driven valve described in any one of claim 1 to 3, which is characterized in that
The above-mentioned base portion of above-mentioned support member is formed from a resin, and above-mentioned support member is by above-mentioned fixed metal parts and above-mentioned base
Component made of portion is insert-molded together.
6. motor-driven valve described in any one of claim 1 to 3, which is characterized in that
Above-mentioned fixed metal parts and above-mentioned valve body are fixed by welding.
7. a kind of refrigerating circulation system, including compressor, condenser, expansion valve and evaporator, above-mentioned refrigerating circulation system
It is characterized in that,
Use motor-driven valve described in any one of claim 1~6 as above-mentioned expansion valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017046196A JP6748591B2 (en) | 2017-03-10 | 2017-03-10 | Motorized valve and refrigeration cycle system |
| JP2017-046196 | 2017-03-10 |
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| CN108571598A CN108571598A (en) | 2018-09-25 |
| CN108571598B true CN108571598B (en) | 2019-08-23 |
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| CN (1) | CN108571598B (en) |
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| JP7154115B2 (en) * | 2018-11-16 | 2022-10-17 | 株式会社鷺宮製作所 | Motor-operated valve stator and motor-operated valve |
| JP7098557B2 (en) * | 2019-03-05 | 2022-07-11 | 株式会社鷺宮製作所 | Solenoid valve and refrigeration cycle system including it |
| JP7297128B2 (en) * | 2019-03-05 | 2023-06-23 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system including the same |
| JP7161764B2 (en) * | 2019-03-22 | 2022-10-27 | 株式会社テージーケー | electric valve |
| CN111765285B (en) * | 2019-04-01 | 2022-08-16 | 浙江盾安禾田金属有限公司 | Electric valve |
| JP2023146071A (en) | 2022-03-29 | 2023-10-12 | 株式会社鷺宮製作所 | Valve gear and refrigeration cycle system |
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| JP2007139016A (en) * | 2005-11-16 | 2007-06-07 | Saginomiya Seisakusho Inc | Electric motor-driven type control valve and refrigerating cycle device |
| JP4795806B2 (en) * | 2006-02-07 | 2011-10-19 | 株式会社鷺宮製作所 | Electric valve and solenoid valve |
| JP2008032093A (en) * | 2006-07-27 | 2008-02-14 | Saginomiya Seisakusho Inc | Method of assembling electric control valve |
| CN101956830B (en) * | 2009-07-17 | 2013-06-12 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN102252121A (en) * | 2010-05-21 | 2011-11-23 | 浙江三花股份有限公司 | Electronic expansion valve |
| JP5130339B2 (en) * | 2010-10-05 | 2013-01-30 | 株式会社鷺宮製作所 | Motorized valve |
| JP6214241B2 (en) * | 2013-06-28 | 2017-10-18 | 株式会社鷺宮製作所 | Motorized valve |
| JP6214488B2 (en) * | 2014-07-18 | 2017-10-18 | 株式会社鷺宮製作所 | Motorized valve |
| JP6472637B2 (en) * | 2014-10-30 | 2019-02-20 | 株式会社鷺宮製作所 | Motorized valve |
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| CN108571598A (en) | 2018-09-25 |
| JP2018150968A (en) | 2018-09-27 |
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