CN108331923A - Motor-driven valve and refrigerating circulation system - Google Patents
Motor-driven valve and refrigerating circulation system Download PDFInfo
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- CN108331923A CN108331923A CN201711443787.9A CN201711443787A CN108331923A CN 108331923 A CN108331923 A CN 108331923A CN 201711443787 A CN201711443787 A CN 201711443787A CN 108331923 A CN108331923 A CN 108331923A
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- armature spindle
- magnet rotor
- shaft portion
- motor
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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
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of motor-driven valve of present invention offer and refrigerating circulation system, improve the positional precision of magnet rotor (2) and the fixed position of armature spindle (1) in motor-driven valve (100).First shaft portion (11) and the second shaft portion (12) bigger than first shaft portion diameter are formed in armature spindle, it is facial (13) in the step that the setting of its boundary portion extends from the axis side of armature spindle to big footpath direction.In the inserting hole (23a) that fixed component (23) setting of magnet rotor is inserted for the first shaft portion of armature spindle, keep the step that the inner circumferential from the inserting hole (23a) is connected to armature spindle towards the abutting facial (23b) that big footpath direction extends facial (13).It is used as backs in the horizontal V slots (14) that the inner corner trim portion setting that the first shaft portion and step facial (13) of armature spindle are formed is retreated from the external corner portion that the inner peripheral surface and abutting facial (23b) of the inserting hole (23a) of magnet rotor (B) are formed.Keep the step that the abutting facial (23b) of magnet rotor side is reliably connected to armature spindle facial (13).
Description
Technical field
The present invention relates to the motor-driven valves and refrigerating circulation system for freeze cycle etc..
Background technology
In the past, as this motor-driven valve, using the rotation of the magnet rotor of stepper motor, make work via feed screw mechanism
Make axis translation, valve port is opened and closed in the valve member by being linked to the working shaft.Such motor-driven valve is for example disclosed in Japan
In special open 2016-89870 bulletins (patent document 1).
Construction of the motor-driven valve of the patent document 1 as fixed magnetic rotor and valve shaft makes valve shaft insert and be fixed on and sets
Sleeve member (fixed component) in the shaft core part of magnet rotor.At this point, the open end of the inserting hole of sleeve member is made to support
It is connected to the stage portion for being formed in valve shaft.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2016-89870 bulletins
Invention content
Problems to be solved by the invention
In the technology of above-mentioned patent document 1, as shown in figure 9, being equipped with sleeve member in the shaft core part of magnet rotor a
B (fixed component), and penetrated through via sleeve member b and be fixed with valve shaft c.In addition, sleeve member b is fixed on the platform of valve shaft c
Rank portion c1.But for example, as shown in Figure 10, machining accuracy when due to processing valve shaft c, existing can be in the stage portion c1 of valve shaft c
Inner corner trim generate R portion X the case where.If having the portions R X, there is a possibility that following：The abutting position of sleeve member b and stage portion c1
Generation deviation is set, magnet rotor a is obliquely fixed relative to valve shaft c, or to generate the state having dislocation in the axial direction of valve shaft c
It is fixed.In addition, if magnet rotor is tilted relative to valve shaft, the closed shell (shell) and magnet rotor for storing magnet rotor connect
It touches, durability, operability are led to the problem of.
Problem of the present invention is that so that magnet rotor and armature spindle is rotated in motor part, and by along with armature spindle
The moving forward and backward for valve member of rotation and make in the motor-driven valve that valve port is opened and closed, improve the fixed position of magnet rotor and armature spindle
Positional precision.
Solution for solving the problem
Scheme 1 is a kind of motor-driven valve, and motor part makes magnet rotor and armature spindle rotate, and by along with above-mentioned
The moving forward and backward for valve member of the rotation of armature spindle and so that valve port is opened and closed, said electric valve is characterized in that, above-mentioned armature spindle shape
As with：First shaft portion；The second shaft portion, diameter are bigger than above-mentioned first shaft portion；And step face, in above-mentioned first axle
Portion and the boundary portion of above-mentioned the second shaft portion extend from the axis side of above-mentioned armature spindle to big footpath direction, and above-mentioned magnet rotor is formed as
Have：Inserting hole is inserted for the above-mentioned first shaft portion of above-mentioned armature spindle；And face is abutted, out of above-mentioned inserting hole
Circumferential surface extends and can be abutted with above-mentioned step face to big footpath direction, in the above-mentioned first shaft portion of above-mentioned armature spindle and above-mentioned
The inner peripheral surface of the above-mentioned inserting hole in inner corner trim portion and above-mentioned magnet rotor formed by terrace portion abuts external corner formed by face with above-mentioned
At least one party in portion is equipped with the backs retreated from another party, and the above-mentioned abutting face of above-mentioned magnet rotor is connected to above-mentioned rotor
The above-mentioned step face of axis, and the magnet rotor and armature spindle are fixed.
The motor-driven valve that scheme 2 is recorded according to scheme 1, which is characterized in that in the above-mentioned inner corner trim portion of above-mentioned armature spindle, by comparing
The outer surface of above-mentioned first shaft portion radially inside be recessed recess portion or compared to above-mentioned step face along the axis of above-mentioned armature spindle
Above-mentioned backs is constituted to the recess portion being recessed towards above-mentioned the second shaft portion side.
The motor-driven valve that scheme 3 is recorded according to scheme 1, which is characterized in that in the above-mentioned external corner portion of above-mentioned magnet rotor, by with
The chamfered section that the inner peripheral surface of above-mentioned inserting hole and above-mentioned bearing surface portion intersect respectively constitutes above-mentioned backs.
The motor-driven valve that scheme 4 is recorded according to any one of scheme 1 to 3, which is characterized in that above-mentioned magnet rotor has：Tool
Magnetic magnet main body；And the integrally formed fixed component with above-mentioned magnet main body, it is equipped in fixation portions part above-mentioned
Inserting hole and above-mentioned abutting face.
Scheme 5 is a kind of refrigerating circulation system, including compressor, condenser, expansion valve and evaporator, above-mentioned freezing follows
Loop system is characterized in that the motor-driven valve that any one of operational version 1 to 4 is recorded is as above-mentioned expansion valve.
Invention effect
According to the motor-driven valve of scheme 1 to 4, in the inner corner trim portion that the first shaft portion of armature spindle is formed with step face and magnetism
The backs retreated from another party is arranged at least one party in the external corner portion for abutting face formation in the inner peripheral surface of the inserting hole of rotor,
Therefore the inner corner trim portion and external corner portion do not interfere.Therefore, the step face of armature spindle and the abutting face of magnet rotor reliably support
It connects, the positional precision of the fixed position of magnet rotor and armature spindle improves.
According to the refrigerating circulation system of scheme 5, effect identical with scheme 1 to 4 can be obtained.
Description of the drawings
Fig. 1 is the longitudinal section view of the motor-driven valve of the first embodiment of the present invention.
Fig. 2 is the magnet rotor of the motor-driven valve of first embodiment and the major part enlarged cross-sectional view of armature spindle.
Fig. 3 is the partial enlarged view of Fig. 2.
Fig. 4 is the major part amplification in the inner corner trim portion for the armature spindle for illustrating first embodiment and the external corner portion of magnet rotor
Sectional view.
Fig. 5 is the master of the variation 1 of the recess portion for the armature spindle side for indicating first embodiment, variation 2 and variation 3
Want enlarged partial cross section.
Fig. 6 is the magnet rotor of the motor-driven valve of second embodiment and the major part enlarged cross-sectional view of armature spindle.
Fig. 7 is the partial enlarged view of Fig. 6.
Fig. 8 is the figure for the refrigerating circulation system for indicating embodiment.
Fig. 9 is the enlarged view of the main part of existing motor-driven valve.
Figure 10 is the figure of an example the problem of illustrating existing motor-driven valve.
In figure：
1-armature spindle, 1a-external thread part, 11-first shaft portions, 12-the second shaft portions, 13-steps face, 14-water
Flat V slots (backs), 15-vertical V slots (backs), 16-horizontal square grooves (backs), 17-vertical square grooves (backs),
A-inner corner trim portion, 2-magnet rotors, 21-magnet parts (magnet main body), 22-round plates (magnet main body), 22a-lug boss,
23-fixed components, 23a-inserting hole, 23b-abutting face, 23c-chamfered section (backs), B-external corner portion, 3-stators
Coil, 10-stepper motors (motor part), 40-valve casings, the 41-the first junction block, the 42-the second junction block, 43-seat rings,
43a-valve port, 50-valve system portions, 51-support members, 52-vavle shelves, 53-needle-valves (valve member), 51a-internal thread part,
100-motor-driven valves (expansion valve), 200-outdoor heat exchangers, 300-indoor heat exchangers, 400-flow channel switching valves, 500-
Compressor, L-axis.
Specific implementation mode
Next, with reference to attached drawing, the embodiment of motor-driven valve and refrigerating circulation system to the present invention illustrates.Fig. 1
It is the longitudinal section view of the motor-driven valve of first embodiment, Fig. 2 is the magnet rotor and armature spindle of the motor-driven valve of first embodiment
Major part enlarged cross-sectional view, Fig. 3 be Fig. 2 it is dashdotted circle indicate part partial enlarged view.In addition, below
The concept of " upper and lower " in explanation is corresponding to upper and lower in the drawing of Fig. 1.
The motor-driven valve 100 has the stepper motor 10 as " motor part ", valve casing 40, valve system portion 50 and by non magnetic
The closed shell 60 that body is constituted.
Closed shell 60 is formed as the substantially cylindrical shape of upper end blocking, is airtightly fixed on valve casing 40 by welding etc.
Upper end.Stepper motor 10 include armature spindle 1, can rotatably be disposed in closed shell 60 inside magnet rotor 2, close
The periphery of closed shell body 60 stator coil 3 arranged opposite relative to magnet rotor 2 and yoke (not shown), external disposed portion
Part etc..Armature spindle 1 is installed on the center of magnet rotor 2, which is extended to 50 side of valve system portion.
Valve casing 40 is shaped generally as cylindrical shape by stainless steel etc., has valve chamber 40R on the inside of it.In the periphery of valve casing 40
Side is connected with the first junction block 41 be connected with valve chamber 40R, and is connected in the cylindrical portion extended downwards from lower end
Two junction blocks 42.In addition, being fitted into the sides valve chamber 40R of the second junction block 42 has seat ring 43.The inside of seat ring 43 becomes valve
Mouth 43a, the second junction block 42 are connected via valve port 43a with valve chamber 40R.In addition, the first junction block 41, the second junction block 42 and
Seat ring 43 is fixed by soldering etc. relative to valve casing 40.
Valve system portion 50 has support member 51, vavle shelf 52 and the needle-valve 53 as " valve member ".Support member 51
Such as it is synthetic resin system and is formed as a generally cylindrical shape, and is stainless via being wholely set by forming by insertion in its periphery
The lip portions 511 of steel, and the upper end of valve casing 40 is fixed on by welding etc..Support member 51 be centrally formed with turn
Internal thread part 51a and its threaded hole coaxial the axis L of sub- axis 1, and the screw thread bore dia being formed with than internal thread part 51a is big
Cylindric pilot hole 51b.
Vavle shelf 52 is cylindric component, and is embedded in pilot hole 51b, with being set as sliding in the direction of the axisl.
Moreover, being fixed with needle-valve 53 in the lower end of vavle shelf 52.Spring base can be movably equipped in the direction of the axisl in vavle shelf 52
52a, between spring base 52a and needle-valve 53, the state to have been assigned scheduled load is equipped with compression disc spring 52b.
It is formed with external thread part 1a in the periphery of 51 side of support member of armature spindle 1, external thread part 1a is threaded into
The internal thread part 51a of support member 51.Moreover, in the pilot hole 51b of support member 51, the upper end of vavle shelf 52, which is sticked in, to be turned
The state that the lower end of sub- axis 1, vavle shelf 52 and needle-valve 53 can rotatably be hung by the support of armature spindle 1.
Top in closed shell 60, which is fitted into have, is oriented to holding cylinder 61, the cylindrical portion in the center of the guiding holding cylinder 61
61a has been embedded in guide part 62.Guide part 62 has pilot hole 62a in center, is rotatably embedded in pilot hole 62a
There is the upper end of armature spindle 1.It is equipped with spirally-guided wire body 63 in the periphery of cylindrical portion 61a, and is equipped with and spirally-guided line
The movable limiting component 64 that body 63 is screwed.
According to above structure, by the driving of stepper motor 10, magnet rotor 2 and armature spindle 1 rotate, and pass through armature spindle
The feed screw mechanism of 1 external thread part 1a and the internal thread part 51a of support member 51, armature spindle 1 move in the direction of the axisl
It is dynamic.Then, valve member 53 moves in the direction of the axisl, and relative to 43 proximity of seat ring or separate.It is opened and closed valve port as a result,
43a, control flow to the second junction block 42 from the first junction block 41 or flow to the system of the first junction block 41 from the second junction block 42
The flow of cryogen.
In addition, it is formed with protrusion 24 in magnet rotor 2, and with the rotation of magnet rotor 2, the push-jump movable limit of protrusion 24
Position component 64, to movable limiting component 64 by thread binding with spirally-guided wire body 63 while turning round on move down
It is dynamic.Then, movable limiting component 64 is by being connected to the lower end locating part 63a of spirally-guided wire body 63, to obtain armature spindle 1
Lowest positions rotary stopper effect.In addition, movable limiting component 64 is oriented to the upper end limit of holding cylinder 61 by being connected to
Position part 61b acts on to obtain the rotary stopper of the top position of armature spindle 1.
So that magnet rotor 2 and armature spindle 1 is rotated in this way, motor-driven valve 100 is stepper motor 10 (motor part), and passes through companion
The motor-driven valve for being opened and closed valve port 43a with the moving forward and backward for valve member 53 of the rotation of armature spindle 1.
Armature spindle 1 is formed by the rod unit of processing stainless steel, and more against the top than support member 51 with being located at
First shaft portion 11 and the diameter the second shaft portion 12 bigger than the first shaft portion 11.In addition, in the insert support member of the second shaft portion 12
51 part is formed with above-mentioned external thread part 1a.In addition, due to the diameter difference of first shaft portion 11 and the second shaft portion 12, first
The boundary portion of axle portion 11 and the second shaft portion 12 have the outer diameter direction from the sides axis L of armature spindle 1 to the second shaft portion 12 extend and
As the step face 13 in face rectangular the axis L relative to armature spindle 1.
Magnet rotor 2 has is magnetized into the cylindric magnet part 21 of multipole, in the inside of magnet part 21 by peripheral part
Round plate 22, the realization wheel hub in the lug boss 22a in the center of round plate 22 of the substantially central portion extension in the directions axis L
Function fixed component 23 and protrusion 24.Magnet part 21, round plate 22 and protrusion 24 are used as and are made of PPS etc.
Integral part and constitute " magnet main body ", the magnet part 21 with PPS etc. for base material be added magnetic powder shape.Separately
Outside, fixed component 23 is the made of metal of stainless steel etc., the fixed component 23 and magnet part 21 and (its lug boss of round plate 22
It is 22a) integrally formed by embedded shape together.
The fixed component 23 of a part as magnet rotor 2 has the generally cylindrical shape of cylindrical portion in upper end
Shape, the columned inserting hole 23a that there is the first shaft portion 11 for armature spindle 1 to insert at its center.In addition, fixed component 23
The face of 51 side of support member becomes from the faces that (big footpath direction) extends outward axis L compared with the inner peripheral surface of inserting hole 23a, should
Face becomes the abutting face 23b that can be abutted with the step of armature spindle 1 face 13.
Fig. 4 shows the state for the midway that magnet rotor 2 is assembled relative to armature spindle 1.As shown, in armature spindle 1,
In a manner of so that the elongated surfaces of step face 13 and the peripheral surface of first shaft portion 11 is intersected, the peripheral surface and platform of the first shaft portion 11
Terrace portion 13 becomes right angle, forms inner corner trim portion A (part surrounded with chain-dotted line).In addition, in magnet rotor 2, inserting hole 23a
Inner peripheral surface and abut face 23b and become right angle, formation external corner portion B (part surrounded with chain-dotted line).In addition, for the inner corner trim
Portion A and external corner portion B, it is also the same in aftermentioned variation and second embodiment, in saying for variation and second embodiment
In bright, Fig. 4 is also quoted.
In the first embodiment, the diameter of the first shaft portion 11 of armature spindle 1 contracts with towards facial 13 sides of step
Diameter makes the step face 13 extend to central side, forms the circular horizontal V slots 14 as " backs ".In addition, in Fig. 3
The cross sectional shape of side is illustrated only, but horizontal V slots 14 become the circular construction formed around the complete cycle of axis L.That is, should
Horizontal V slots 14 are set as, and are retreated from the external corner portion B of 2 side of magnet rotor to central side in the inner corner trim portion A of armature spindle 1.As a result, such as
Shown in Fig. 3, in the state that magnet rotor 2 is assembled in armature spindle 1, the abutting face 23b of magnet rotor 2 is connected to armature spindle
1 step face 13.In addition, magnet rotor 2 and armature spindle 1 are fixed in 23 part of fixed component by welding etc..
As described above, by the circular horizontal V slots 14 for being used as " backs " of armature spindle 1, magnet rotor 2 can be made
The abutting face 23b of side does not interfere and is reliably connected to the step face 13 of armature spindle 1, therefore magnet rotor 2 with inner corner trim portion A
It is improved with the positional precision of the fixed position of armature spindle 1.
Fig. 5 is the figure for the variation 1 to 3 for indicating first embodiment " backs ".In each variation below and
In two embodiments, symbol identical with Fig. 1 to Fig. 4 is marked to unit same as the first embodiment, and suitably omit weight
Multiple explanation.In addition, be shown in figure the section shape of side, but it is vertical V slots 15 below, horizontal square groove 16, vertical
Square groove 17 becomes the circular construction formed around above-mentioned axis L complete cycles.
The variation 1 of Fig. 5 (A) is formed in a manner of keeping the first shaft portion 11 of armature spindle 1 extended in the axial direction as " retrogressing
The circular vertical V slots 15 in portion ".That is, the vertical V slots 15 are set as, armature spindle 1 inner corner trim portion A (with reference to Fig. 4) from magnetism
External corner portion B (with reference to Fig. 4) of 2 side of rotor retreats in the axial direction.
The variation 2 of Fig. 5 (B) using make the step face 13 of armature spindle 1 to central side it is extended in a manner of formed as " retreating
The circular horizontal square groove 16 in portion ".That is, the horizontal square groove 16 is set as, armature spindle 1 inner corner trim portion A (with reference to Fig. 4) from magnetic
Property 2 side of rotor external corner portion B (with reference to Fig. 4) retreated to central side.
The variation 3 of Fig. 5 (C) is formed in a manner of keeping the first shaft portion 11 of armature spindle 1 extended in the axial direction as " retrogressing
The circular vertical square groove 17 in portion ".That is, the vertical square groove 17 is set as, armature spindle 1 inner corner trim portion A (with reference to Fig. 4) from magnetic
External corner portion B (with reference to Fig. 4) of property 2 side of rotor retreats in the axial direction.
In above variation 1 to 3, also it can make magnetism by vertical V slots 15, horizontal square groove 16, vertical square groove 17
The abutting face 23b of 2 side of rotor is reliably connected to the step face 13 of armature spindle 1, therefore magnet rotor 2 and armature spindle 1
The positional precision of fixed position improves.
Fig. 6 is the magnet rotor 2 of the motor-driven valve of second embodiment and the major part enlarged cross-sectional view of armature spindle 1, Fig. 7
It is the partial enlarged view in the part of the dashdotted circle expression of Fig. 6.In this second embodiment, inserting in fixed component 23
The circular chamfered section 23c as " backs " is formed with around the lower opening portion of through-hole 23a.That is, chamfered section 23c is
With the inner peripheral surface of inserting hole 23a and abut the face that face 23b intersects respectively, chamfered section 23c is set as, magnet rotor 2 (Gu
Determine component 23) external corner portion B (with reference to Fig. 4) retreated outward from inner corner trim portion A (with reference to Fig. 4) of 1 side of armature spindle.As a result, such as Fig. 7
It is shown, even if the abutting face 23b of 2 side of magnet rotor can be made reliably to support if the inner corner trim portion A of armature spindle 1 forms R portion X
It is connected to the step face 13 of armature spindle 1, magnet rotor 2 and the positional precision of the fixed position of armature spindle 1 improve.
Fig. 8 is the figure for the refrigerating circulation system for indicating embodiment.In figure, symbol 100 is the present invention for constituting expansion valve
Embodiment motor-driven valve, symbol 200 is mounted in the outdoor heat exchanger of outdoor unit, and symbol 300 is mounted in interior
The indoor heat exchanger of unit, symbol 400 are the flow channel switching valves for constituting four-way valve, and symbol 500 is compressor.Motor-driven valve 100,
Outdoor heat exchanger 200, indoor heat exchanger 300, flow channel switching valve 400 and compressor 500 are as shown by conduit respectively
It connects like that, constitutes the freeze cycle of heat-pump-type.In addition, the illustration is omitted for liquid storage device, pressure sensor, temperature sensor etc..
Stream when flow path when the flow path of freeze cycle switches to refrigeration operation by flow channel switching valve 400 and heating operation
This two, road.When refrigeration operation, as shown in solid arrow in figure, the refrigerant being had compressed by compressor 500 switches from flow path
400 inflow outdoor heat exchanger 200 of valve, which plays the function of condenser, from outdoor heat exchanger 200
The liquid refrigerant of outflow plays evaporator via 100 inflow indoor heat exchanger 300 of motor-driven valve, the indoor heat exchanger 300
Function.
On the other hand, in heating operation, as indicated by a dashed arrow in the figure, the refrigerant being had compressed by compressor 500
With from flow channel switching valve 400 to indoor heat exchanger 300, motor-driven valve 100, outdoor heat exchanger 200, flow channel switching valve 400, with
And the sequence cycle of compressor 500, indoor heat exchanger 300 play the function of condenser, outdoor heat exchanger 200 plays evaporation
The function of device.Motor-driven valve 100 by when refrigeration operation from the liquid refrigerant or heating operation that outdoor heat exchanger 200 flows into when
The liquid refrigerant flowed into from indoor heat exchanger 300 distinguishes decompression expansion, further controls the flow of the refrigerant.
In above example, the step face 13 of armature spindle 1 and the abutting face 23b of magnet rotor 2 become relative to axis L
Rectangular face, but may be the face relative to axis L in approximate right angle.In addition, being not limited to right angle, approximate right angle
Face, or what is extended from the sides axis L to outside direction (big footpath direction) has inclined face.
Magnet rotor 2 is configured to relative to making magnet part 21 and round plate 22 be integrally formed in the above embodiment
" magnet main body " embedded forming fixed component 23 the case where be illustrated, but can also be without the fixed component 23.That is,
Can also be that magnet rotor is made of a component, the installation constitution application to the position and armature spindle of the function of realizing its wheel hub
The present invention.
In addition, magnet rotor 2 and armature spindle 1 are illustrated by examples fastened to each other such as welding, but this is fixed
Method other methods such as can also be adhesives.
More than, embodiments of the present invention are described in detail with reference to attached drawing, but specific structure is not limited to this
A little embodiments, the change etc. for not departing from the design of the range of the purport of the present invention also belong to the present invention.
Claims (5)
1. a kind of motor-driven valve, motor part makes magnet rotor and armature spindle rotate, and by along with above-mentioned armature spindle
The moving forward and backward for valve member of rotation and so that valve port is opened and closed,
Said electric valve is characterized in that,
Above-mentioned armature spindle is formed to have：First shaft portion；The second shaft portion, diameter are bigger than above-mentioned first shaft portion；And step surface
Portion extends in the boundary portion of above-mentioned first shaft portion and above-mentioned the second shaft portion from the axis side of above-mentioned armature spindle to big footpath direction,
Above-mentioned magnet rotor is formed to have：Inserting hole is inserted for the above-mentioned first shaft portion of above-mentioned armature spindle；And bearing surface
Portion extends and can be abutted with above-mentioned step face towards big footpath direction from the inner circumferential of above-mentioned inserting hole,
In the above-mentioned of above-mentioned first shaft portion and the inner corner trim portion formed by above-mentioned step face of above-mentioned armature spindle and above-mentioned magnet rotor
The inner peripheral surface of inserting hole is equipped with the backs retreated from another party with the above-mentioned at least one party for abutting external corner portion formed by face, on
The above-mentioned abutting face for stating magnet rotor is connected to the above-mentioned step face of above-mentioned armature spindle, and by the magnet rotor and armature spindle
It is fixed.
2. motor-driven valve according to claim 1, which is characterized in that
In the above-mentioned inner corner trim portion of above-mentioned armature spindle, by the recess portion that radially inside is recessed of the outer surface compared to above-mentioned first shaft portion or
The axial recess portion that towards above-mentioned the second shaft portion side is recessed of the person compared to above-mentioned step face along above-mentioned armature spindle constitutes above-mentioned backs.
3. motor-driven valve according to claim 1, which is characterized in that
In the above-mentioned external corner portion of above-mentioned magnet rotor, by with above-mentioned inserting hole inner peripheral surface and above-mentioned bearing surface portion intersect respectively
Chamfered section constitutes above-mentioned backs.
4. motor-driven valve according to any one of claim 1 to 3, which is characterized in that
Above-mentioned magnet rotor has：Has magnetic magnet main body；And the integrally formed fixed component with above-mentioned magnet main body,
It is equipped with above-mentioned inserting hole and above-mentioned abutting face in fixation portions part.
5. a kind of refrigerating circulation system, including compressor, condenser, expansion valve and evaporator,
Above-mentioned refrigerating circulation system is characterized in that,
Using the motor-driven valve described in any one of any one of claims 1 to 44 as above-mentioned expansion valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110432489.XA CN113124180B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
| CN202110431002.6A CN112984134B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017008421A JP2018115743A (en) | 2017-01-20 | 2017-01-20 | Motor-operated valve and refrigeration cycle system |
| JP2017-008421 | 2017-01-20 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110432489.XA Division CN113124180B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
| CN202110431002.6A Division CN112984134B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108331923A true CN108331923A (en) | 2018-07-27 |
| CN108331923B CN108331923B (en) | 2021-04-27 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110432489.XA Active CN113124180B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
| CN202110431002.6A Active CN112984134B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
| CN201711443787.9A Active CN108331923B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110432489.XA Active CN113124180B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
| CN202110431002.6A Active CN112984134B (en) | 2017-01-20 | 2017-12-27 | Electric valve and refrigeration cycle system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018115743A (en) |
| CN (3) | CN113124180B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113124180B (en) | 2023-07-14 |
| JP2018115743A (en) | 2018-07-26 |
| CN112984134B (en) | 2022-12-20 |
| CN112984134A (en) | 2021-06-18 |
| CN113124180A (en) | 2021-07-16 |
| CN108331923B (en) | 2021-04-27 |
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