CN108375250A - Motor-driven valve and refrigerating circulation system - Google Patents
Motor-driven valve and refrigerating circulation system Download PDFInfo
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- CN108375250A CN108375250A CN201810019632.0A CN201810019632A CN108375250A CN 108375250 A CN108375250 A CN 108375250A CN 201810019632 A CN201810019632 A CN 201810019632A CN 108375250 A CN108375250 A CN 108375250A
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- mentioned
- armature spindle
- fixed component
- cylindrical portion
- motor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
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- Electrically Driven Valve-Operating Means (AREA)
- Lift Valve (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The fixed component (23) of magnet rotor (2) and armature spindle (1) are properly welded and fixed by a kind of motor-driven valve of present invention offer and refrigerating circulation system, motor-driven valve (100).In the center setting fixed component (23) of magnet rotor (2).Fixed component (23) is formed by the fixed component main part (231) of cylindrical shape and the cylindrical portion (232) of cylindrical shape.Cylindrical portion (232) is made smaller than fixed component main part (231) diameter.Make the small of the volume ratio fixed component main part (231) of cylindrical portion (232).Make the inserting hole (23a) that armature spindle (1) (first shaft portion 11) is inserted in the center setting of fixed component (23).Open end in cylindrical portion (232) side of the inserting hole (23a) of fixed component (23) is locally welded and fixed component (23) and armature spindle (1) in two positions (part) around axis (L).Form two melting and solidification portions (4,4) caused by welding of suitable depth.
Description
Technical field
The present invention relates to the motor-driven valves and refrigerating circulation system for refrigerating circulation system etc..
Background technology
In the past, as this motor-driven valve, using the rotation of the magnet rotor of stepper motor, make to turn via feed screw mechanism
Valve port is opened and closed in sub- axis translation, the valve member by being linked to the armature spindle.Such motor-driven valve is for example disclosed in Japan
In special open 2016-156447 bulletins (patent document 1) and Japanese Unexamined Patent Publication 2015-90204 bulletins (patent document 2).
Construction of the existing motor-driven valve of patent document 1 as fixed magnetic rotor and valve shaft (armature spindle) makes valve shaft insert
The logical union body (fixed component) set on the shaft core part of magnet rotor fixes the union body and valve shaft by welding etc..
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2016-156447 bulletins
Patent document 2：Japanese Unexamined Patent Publication 2015-90204 bulletins
Invention content
Problems to be solved by the invention
As described above, the union body (fixed component) and valve shaft (armature spindle) in the shaft core part that will be set to magnet rotor are logical
It crosses in the case of being welded and fixed, it is desirable that union body and the respective thermal capacity of valve shaft are arranged to suitable relationship.For example, in valve shaft
Ratio of heat capacities union body it is small in the case of, excessive sweating heat can be applied to valve shaft, valve shaft may deform.Additionally, it is also possible to
Valve shaft first melts and the melting of union body is insufficient, cannot get sufficient fixing intensity, and union body can be detached from from valve shaft.
Problem of the present invention is that providing a kind of motor-driven valve, motor part makes magnet rotor and armature spindle rotate, by adjoint
Moving forward and backward for the valve member of the rotation of armature spindle makes valve port be opened and closed, which is welded and fixed the fixed component of magnet rotor
And armature spindle, the deformation of armature spindle can be prevented, and improve fixing intensity.
Solution for solving the problem
Scheme 1 is a kind of motor-driven valve, and motor part makes magnet rotor and metal armature spindle rotate, and passes through companion
Valve port is set to be opened and closed with the moving forward and backward for valve member of the rotation of above-mentioned armature spindle, said electric valve is characterized in that, above-mentioned
Magnet rotor has：Has magnetic magnet main body；And metal fixed component, above-mentioned magnet main body center with
The magnet main body is integrally formed, and fixation portions part is formed to have fixed component main part and cylindric cylindrical portion, and
Equipped with the inserting hole for penetrating through fixation portions part main part and above-mentioned cylindrical portion on the axis direction of above-mentioned armature spindle, wherein
The fixed component main part is combined with above-mentioned magnet main body by above-mentioned integrally formed by, and the diameter of the cylindrical portion is than above-mentioned fixation
The outer diameter in article body portion is small and volume ratio fixation portions part main part it is small, above-mentioned armature spindle is inserted through above-mentioned insert
Hole, by and the part of above-mentioned cylindrical portion and above-mentioned armature spindle around the open end of above-mentioned inserting hole consolidated by welding
It is fixed.
The motor-driven valve that scheme 2 is recorded according to scheme 1, which is characterized in that in above-mentioned armature spindle around multiple positions of axis,
The above-mentioned open end and above-mentioned armature spindle of the above-mentioned inserting hole of above-mentioned cylindrical portion are welded, and are formed with by above-mentioned welding
Generated each melting and solidification portion.
Motor-driven valve that scheme 3 is recorded according to scheme 1, which is characterized in that in above-mentioned armature spindle around opposed two of axis
The above-mentioned open end and above-mentioned armature spindle of the above-mentioned inserting hole of above-mentioned cylindrical portion are welded in position, by above-mentioned welding institute
Each melting and solidification portion generated is formed in the range of 45 ° around above-mentioned axis~90 °.
The motor-driven valve that scheme 4 is recorded according to any one of scheme 1 to 3, which is characterized in that the above-mentioned opening of above-mentioned cylindrical portion
The shape in the internal diameter corner of end is the edge shape to connect with the periphery of above-mentioned armature spindle, or is slightly fallen for C0.1 is below
Angular shape.
The motor-driven valve that scheme 5 is recorded according to any one of scheme 1 to 4, which is characterized in that above-mentioned armature spindle and above-mentioned fixation
Component is same material.
The motor-driven valve that scheme 6 is recorded according to any one of scheme 1 to 5, which is characterized in that fixation portions part main part is in
Cylindrical shape, the ruler of the above-mentioned axis direction of the above-mentioned cylindrical portion of size ratio of the above-mentioned axis direction of fixation portions part main part
It is very little big.
The motor-driven valve that scheme 7 is recorded according to any one of scheme 1 to 6, which is characterized in that by the diameter of above-mentioned armature spindle
It is set as D, the radial wall thickness of above-mentioned cylindrical portion is set as t, and the size of the above-mentioned axis direction of above-mentioned cylindrical portion is set as H
When, t ＜ D/2, H/t >=1.
Scheme 8 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 7 is recorded is as above-mentioned expansion valve.
Invention effect
According to the motor-driven valve of scheme 1 to 7, diameter is smaller than the outer diameter of fixed component main part, small and thermal capacity is small
Cylindrical portion, not week welding, but local welding, therefore, it is possible to inhibit the generation of excessive sweating heat in welding
Mode weld, can be therefore, local in the range increase amount of fusing into for not causing to cause because of sweating heat the deformation of armature spindle
Intensity helps to improve whole bond strength, and magnet rotor (part thereof of fixed component) will not fall off from armature spindle.Separately
Outside, the outer diameter for being incorporated into the fixed component main part of magnet main body is bigger than the cylindrical portion engaged by welding, therefore magnetic turn
When son rotation, the torque of magnet main body can be easily transferred to fixed component main part, fixed component will not be from magnet master
Body falls off.
According to the motor-driven valve of scheme 4, edge shape is made into the internal diameter corner of the upper end of cylindrical portion or C0.1 is below
Slight chamfer shape, therefore in the end of fixed component (cylindrical portion), become smaller with the gap of armature spindle, it is inclined even if there are components
Difference, welding deviation, can also improve weldability, further increase fixing intensity.
According to the motor-driven valve of scheme 5, armature spindle and fixed component are made into same material, therefore pyroconductivity is identical, rotor
Axis and fixed component equably melt, and further increase fixing intensity.For example, armature spindle will not be melted first.
According to the motor-driven valve of scheme 6, fixed component main part cylindrical form, the axis direction of fixed component main part
The size of the axis direction of size ratio cylindrical portion is big.Therefore, it is possible to substantially ensure the thermal capacity of fixed component main part, can press down
Influence of the sweating heat processed to magnet main body.
According to the refrigerating circulation system of scheme 8, effect identical with scheme 1 to 7 can be obtained.
Description of the drawings
Fig. 1 is the longitudinal section view of the motor-driven valve of embodiments of the present invention.
Fig. 2 is the magnet rotor of the motor-driven valve of embodiment and the major part enlarged cross-sectional view of armature spindle.
Fig. 3 is the A-A direction views of Fig. 2.
Fig. 4 is the B-B sectional view and partial enlarged view of Fig. 2.
Fig. 5 (A) to (C) is the figure of the variation 1 for the fixed component for indicating embodiment.
Fig. 6 (A) to (C) is the figure of the variation 2 for the fixed component for indicating embodiment.
Fig. 7 (A) to (C) is the figure of the variation 3 for the fixed component for indicating embodiment.
Fig. 8 is the figure for the refrigerating circulation system for indicating embodiment.
In figure：
1-armature spindle, 1a-external thread part, 2-magnet rotors, 21-magnet parts (magnet main body), 22-round plate (magnetic
Iron main body), 22a-lug boss, 23-fixed components, 23a-inserting hole, 231-fixed component main parts, 232-cylindrical portions,
25-fixed components, 251-fixed component main parts, 252-cylindrical portions, 25a-inserting hole, 26-fixed components, Gu 261-
Determine article body portion, 262-cylindrical portions, 26a-inserting hole, 27-fixed components, 271-fixed component main parts, 272-circles
Canister portion, 27a-inserting hole, 3-stator units, 4-melting and solidification portions, 10-stepper motors (motor part), 40-valve casings, 41-
First junction block, the 42-the second junction block, 43-seat rings, 43a-valve port, 50-valve system portions, 51-support members, 52-
Vavle shelf, 53-needle-valves (man's cap used in ancient times component), 51a-internal thread part, 100-motor-driven valves (expansion valve), 200-outdoor heat exchangers,
300-indoor heat exchangers, 400-flow channel switching valves, 500-compressors, 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 embodiment, Fig. 2 is the magnet rotor of the motor-driven valve of embodiment and the main portion of armature spindle
Divide enlarged cross-sectional view, Fig. 3 is the A-A direction views of Fig. 2, and Fig. 4 is the B-B sectional view and partial enlarged view of Fig. 2.In addition, following
Explanation in " upper and lower " concept corresponding to Fig. 1 drawing in up and down.
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.
Stepper motor 10 include armature spindle 1, can rotatably be disposed in closed shell 60 inside magnet rotor 2, with
And the stator unit 3 arranged opposite relative to magnet rotor 2 in the periphery of closed shell 60.As be described hereinafter, armature spindle 1 is installed on
The center of magnet rotor 2, the armature spindle 1 are extended to 50 side of valve system portion.Stator unit 3 has the bobbin of resin
31, the yoke (yoke) 33 that winding is assemblied in the stator coil 32 a pair of of up and down of bobbin 31 and is made of magnetic substance.And
And the peripheral end of yoke 33 is embedded in cylinder casing 34, yoke 33 and cylinder casing 34 are closed by resin covering 35.
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.On the inside of the upper end of seat ring 43 at
For valve port 43a, the second junction block 42 is 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.
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.In addition, the top in closed shell 60, which is fitted into have, is oriented to holding cylinder 61, the circle in the center of the guiding holding cylinder 61
Canister portion 61a has been embedded in guide part 62.Guide part 62 has pilot hole 62a in center, in pilot hole 62a rotatably
It is embedded with 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 is led with spiral
The movable limiting component 64 being screwed to wire body 63.
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, needle-valve 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 43a as a result,
Control flows to the second junction block 42 from the first junction block 41 or flows to the refrigerant of the first junction block 41 from the second junction block 42
Flow.
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.
Magnet rotor 2 and metal armature spindle 1 is set to rotate in this way, motor-driven valve 100 is stepper motor 10 (motor part), and
And the motor-driven valve that valve port 43a is opened and closed is made by moving forward and backward for the needle-valve of the rotation along with armature spindle 1 53.
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
Axle portion 11 and the boundary portion of the second shaft portion 12, which have from the sides axis L of above-mentioned armature spindle 1 to the outer diameter direction of the second shaft portion 12, prolongs
Stretch and become the step face 13 in the face rectangular relative to the axis L of 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 above-mentioned protrusion 24.Magnet part 21, round plate 22 and protrusion 24 are as by PPS etc.
The integral part of composition and constitute " magnet main body ", the magnet part 21 be with PPS etc. for base material be added magnetic powder shape
's.In addition, fixed component 23 is the stainless steel with 1 same material of armature spindle, the fixed component 23 and magnet part 21 and circle
Pan portion 22 (its lug boss 22a) is integrally formed by embedded shape together.
The fixed component 23 of a part as magnet rotor 2 is formed to have the fixed component main part of cylindrical shape
231 and smaller than 231 diameter of fixed component main part and cylindrical shape cylindrical portion 232, the fixed component main part 231 and cylinder
The mode of the axis centered on axis L of portion 232 is coaxial.In addition, fixed component 23 has for fixed component main part 231 and cylindrical portion
The 232 columned inserting hole 23a penetrated through in the direction of the axisl.Moreover, the face of 51 side of support member of fixed component 23 becomes
From the face that axis L extends outward compared with the inner peripheral surface of inserting hole 23a, which becomes can be with the step face of armature spindle 1
The 13 abutting face 23b abutted.
Armature spindle 1 (first shaft portion 11) is inserted through in the inserting hole 23a of fixed component 23 by magnet rotor 2, and becoming makes admittedly
Determine component 23 abutting face 23b be connected to armature spindle 1 step face 13 state.As a result, carry out magnet rotor 2 relative to
The positioning in the directions axis L of armature spindle 1.Then, in the open end of 232 side of cylindrical portion of the inserting hole 23a of fixed component 23
Surrounding A (double dot dash line of Fig. 2), at two position (part) by welding come fixed rotor axis 1 and cylindrical portion 232,
Form two melting and solidification portions 4,4 of the welding.In addition, as shown in figure 3, the melting and solidification portion 4,4 is respectively formed in around axis L
45 °~90 ° in the range of.Above-mentioned welding method is, for example, Laser Welding, therefore to the open end and rotor of inserting hole 23a
The partial illumination laser point on the boundary of axis 1.At this point, the output (intensity) of adjustment laser, so that the depth in melting and solidification portion 4 becomes
The depth of armature spindle 1 and fixed component 23 can be securely fixed.
In this way, fixed component 23 has is incorporated into magnet part 21 and round plate by integrally formed based on embedded forming
The fixed component main part 231 of 22 (magnet main bodies).In addition, fixed component 23 has diameter than fixed component main part 231
Outer diameter is small and the small cylindric cylindrical portion 232 of volume ratio fixed component main part 231.Then, armature spindle 1 is inserted through
Inserting hole 23a, by cylindrical portion 232 and armature spindle 1 part of A around the open end of inserting hole 23a are consolidated by welding
It is fixed.That is, the cylindrical portion 232 smaller than the outer diameter of fixed component main part 231 and small in diameter, thermal capacity is small carries out local weldering
Connect rather than week welding.Therefore, it is possible to inhibit the generation of excessive sweating heat in welding.Thereby, it is possible to do not cause because
Sweating heat and the range increase amount of fusing into for causing the deformation of armature spindle 1.Therefore, the intensity for the part that melting and solidification portion 4,4 is brought
Whole bond strength is helped to improve, magnet rotor 2 (fixed component 23) will not fall off from armature spindle 1.In addition, fixed component
The outer diameter of main part 231 is bigger than the cylindrical portion 232 by solder joints, therefore when the rotation of magnet rotor 2, can be by magnet main body
Torque be easily transferred to fixed component main part 231, fixed component 23 will not fall off from magnet main body.
In addition, the open end and armature spindle of the opposed two positions welding inserting hole 23a around axis L in armature spindle 1
1, each melting and solidification portion 4,4 for welding generation is formed in the range of 45 ° around axis L~90 °.It therefore, can be with when welding
The mode of the generation of excessive sweating heat is inhibited to weld.
In addition, as the partial enlarged view indicated in the dashdotted circle of Fig. 4, the inserting hole of the upper end of cylindrical portion 232
The internal diameter corner of 1 side of armature spindle of 23a becomes C0.1 slight chamfer shapes below.Therefore, in the cylindrical portion of fixed component 23
232 end becomes smaller with the gap of armature spindle 1, even if there are can improve fixed component 23 if component deviation, welding deviation
With the weldability of armature spindle 1, fixing intensity is further increased.In addition, the internal diameter corner of 1 side of armature spindle of inserting hole 23a also may be used
Think edge shape.
In addition, armature spindle 1 and fixed component 23 are stainless steel, it is same material, therefore pyroconductivity is identical, rotor
Axis 1 and fixed component 23 with degree melt, and further increase fixing intensity.
In addition, fixed component main part 231 is cylindrical shape, the size ratio in the directions axis L of fixed component main part 231
The size in the directions axis L of cylindrical portion 232 is big.It, can therefore, it is possible to substantially ensure the thermal capacity of fixed component main part 231
Inhibit influence of the sweating heat to " magnet main body " that is made of one magnet part 21 and round plate 22.
In addition, as shown in Fig. 2, the diameter of the first shaft portion 11 of armature spindle 1 is set as D, by the radial direction of cylindrical portion 232
Wall thickness is set as t, and when the size (height) in the directions axis L of cylindrical portion 232 is set as H, t ＜ D/2, H/t >=1.Cylinder as a result,
The thermal capacity in portion 232 is suitable for welding relative to the thermal capacity of armature spindle 1, improves weldability, improves fixing intensity.
Fig. 5 is the figure for the variation 1 for indicating fixed component.In addition, in Fig. 5 below corresponding to variation 1 to 3 to figure
In 7, (A) figure is the vertical view of fixed component, and (B) figure is the longitudinal section view of fixed component, and (C) figure is the side view of fixed component
Figure.In addition, 2 illustration omitted of magnet rotor, only lug boss 22a is shown in longitudinal section view with chain-dotted line.The variation 1 is consolidated
It is the stainless steel with 1 same material of armature spindle to determine component 25, and with above-mentioned magnet part 21 and round plate 22 (the lug boss 22a) one
With integrally formed by embedded shape.In addition, the fixed component 25 of the variation 1 is formed to have the fixed part of cylindrical shape
Part main part 251 and diameter is smaller than fixed component main part 251 and cylindrical portion 252 of cylindrical shape, and with for armature spindle 1
The columned inserting hole 25a of insert.The fixed component main part 251 of the variation 1 be and fixation portions part main part 231
The diameter of identical shape, cylindrical portion 252 is smaller than above-mentioned cylindrical portion 232.
Fig. 6 is the figure for the variation 2 for indicating fixed component.The fixed component 26 of the variation 2 is and 1 same material of armature spindle
Stainless steel, and it is integrally formed by embedded shape together with above-mentioned magnet part 21 and round plate 22 (its lug boss 22a).
In addition, the fixed component 26 of the variation 2 is formed to have generally cylindrical shaped fixed component main part 261 and diameter ratio is solid
Determine that article body portion 261 is small and cylindrical portion 262 of cylindrical shape, and with the columned inserting hole inserted for armature spindle 1
26a.The fixed component main part 261 of the variation 2 and 231 same diameter of fixation portions part main part, but at four of periphery
Position has groove 261a.In addition, cylindrical portion 262 is shape identical with the cylindrical portion of variation 1 252.Groove 261a's is big
Small, shape is not limited to the size in figure, can it is small can also be big, groove position is also not necessarily limited to four positions, can be four portions
Or more, can also be four positions or less.
Fig. 7 is the figure for the variation 3 for indicating fixed component.The fixed component 27 of the variation 3 is and 1 same material of armature spindle
Stainless steel, and it is integrally formed by embedded shape together with above-mentioned magnet part 21 and round plate 22 (its lug boss 22a).
In addition, the fixed component 27 of the variation 3 is formed to have the fixed component main part 271 of quadrangle post shapes and diameter ratio is fixed
Article body portion 271 is small and cylindrical portion 272 of cylindrical shape, and with the columned inserting hole inserted for armature spindle 1
27a.The maximum diameter portion of the fixed component main part 271 of the variation 3 and 231 same diameter of fixation portions part main part.In addition, circle
Canister portion 272 is shape identical with the cylindrical portion of variation 1 252.
It is opposed around axis L in armature spindle 1 in these variations 1 to 3 as shown in Fig. 5 (B), Fig. 6 (B), Fig. 7 (B)
Two positions are respectively formed with each melting and solidification portion 4,4 that welding generates.In addition, in these variations 1 to 3, fixed component
The section shape of main part 251,261,271 is identical, and maximum outside diameter is identical.But fixed component main part 251,261,271
Volume it is respectively different.
In addition, the body of the fixed component main part 231,251,261,271 in above embodiment and variation 1 to 3
Product is preferably the respective three times of the volume of cylindrical portion 232,252,262,272 or more.In addition, the shape of fixed component main part
Can be other shapes, such as triangle, pentagon, prism shape in addition to this.
In addition, in embodiment and each variation, weldering is implemented to two positions opposed around axis L in armature spindle 1
The example connect is illustrated, but welding position can also be around a position of axis L.In this case, it is preferred that around axis
150 °~270 ° of range be formed with melting and solidification portion.In addition, being not limited to around two opposed axis L positions, around axis L's
One position, welding position can also be around multiple positions (for example, more than three positions) of axis L.In this case, weld part
Position is preferably implemented around the position of axis L rotational symmetry, is formed the angle around each melting and solidification portion of axis and be might be less that
45°。
Fig. 8 is the figure for the refrigerating circulation system for indicating embodiment.In figure, symbol 100 is this hair for constituting " expansion valve "
The motor-driven valve of bright embodiment, symbol 200 are mounted in the outdoor heat exchanger of outdoor unit, and symbol 300 is mounted in room
The indoor heat exchanger of interior 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 respectively by conduit such as
Diagram connects like that, constitutes the refrigerating circulation system of heat-pump-type.In addition, the omissions such as liquid storage device, pressure sensor, temperature sensor
Diagram.
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 is by the liquid refrigerant flowed into from outdoor heat exchanger 200 when refrigeration operation or heating operation
When from indoor heat exchanger 300 flow into liquid refrigerant distinguish decompression expansion, further control the flow of the refrigerant.
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 (8)
1. a kind of motor-driven valve, motor part makes magnet rotor and metal 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 magnet rotor has：Has magnetic magnet main body；And metal fixed component, in above-mentioned magnet main body
Center it is integrally formed with the magnet main body,
Fixation portions part is formed to have fixed component main part and cylindric cylindrical portion, and equipped in above-mentioned armature spindle
Axis direction on penetrate through fixation portions part main part and above-mentioned cylindrical portion inserting hole, wherein the fixed component main part
It is combined with above-mentioned magnet main body by above-mentioned integrally formed by, the outer diameter of the diameter of the cylindrical portion than fixation portions part main part
It is small and volume ratio fixation portions part main part small,
Above-mentioned armature spindle is inserted through above-mentioned inserting hole, and above-mentioned cylindrical portion and above-mentioned armature spindle are in the open end of above-mentioned inserting hole
A part around portion is fixed by welding.
2. motor-driven valve according to claim 1, which is characterized in that
In above-mentioned armature spindle around multiple positions of axis, above-mentioned open end to the above-mentioned inserting hole of above-mentioned cylindrical portion and upper
It states armature spindle to be welded, and is formed with each melting and solidification portion caused by above-mentioned welding.
3. motor-driven valve according to claim 1, which is characterized in that
At two positions opposed around axis of above-mentioned armature spindle, to the above-mentioned open end of the above-mentioned inserting hole of above-mentioned cylindrical portion
It is welded with above-mentioned armature spindle, each melting and solidification portion caused by above-mentioned welding is formed in 45 ° around above-mentioned axis~90 °
In the range of.
4. motor-driven valve according to any one of claim 1 to 3, which is characterized in that
The shape in the internal diameter corner of the above-mentioned open end of above-mentioned cylindrical portion is the edge shape to connect with the periphery of above-mentioned armature spindle
Shape, or be C0.1 slight chamfer shapes below.
5. motor-driven valve according to any one of claim 1 to 4, which is characterized in that
Above-mentioned armature spindle and fixation portions part are same material.
6. motor-driven valve according to any one of claim 1 to 5, which is characterized in that
Fixation portions part main part cylindrical form, the size ratio of the above-mentioned axis direction of fixation portions part main part are above-mentioned
The size of the above-mentioned axis direction of cylindrical portion is big.
7. motor-driven valve according to any one of claim 1 to 6, which is characterized in that
The diameter of above-mentioned armature spindle is being set as D, the radial wall thickness of above-mentioned cylindrical portion is set as t, and by above-mentioned cylindrical portion
When the size of above-mentioned axis direction is set as H, t ＜ D/2, H/t >=1.
8. 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 claim 1 to 7 as above-mentioned expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011612736.6A CN112781282A (en) | 2017-01-31 | 2018-01-09 | Electric valve and refrigeration cycle system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-016004 | 2017-01-31 | ||
| JP2017016004A JP6726116B2 (en) | 2017-01-31 | 2017-01-31 | Motorized valve and refrigeration cycle system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011612736.6A Division CN112781282A (en) | 2017-01-31 | 2018-01-09 | Electric valve and refrigeration cycle system |
Publications (2)
| Publication Number | Publication Date |
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| CN108375250A true CN108375250A (en) | 2018-08-07 |
| CN108375250B CN108375250B (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011612736.6A Pending CN112781282A (en) | 2017-01-31 | 2018-01-09 | Electric valve and refrigeration cycle system |
| CN201810019632.0A Active CN108375250B (en) | 2017-01-31 | 2018-01-09 | Electric valve and refrigeration cycle system |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011612736.6A Pending CN112781282A (en) | 2017-01-31 | 2018-01-09 | Electric valve and refrigeration cycle system |
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| Country | Link |
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| JP (1) | JP6726116B2 (en) |
| CN (2) | CN112781282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220341638A1 (en) * | 2019-09-27 | 2022-10-27 | Zhejiang Dunan Artificial Environment Co., Ltd. | Electronic Expansion Valve and Assembling Method of Electronic Expansion Valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7157105B2 (en) * | 2020-06-25 | 2022-10-19 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
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| JP2011204317A (en) * | 2010-03-25 | 2011-10-13 | Seiko Instruments Inc | Rolling bearing device and pivot device |
| CN104676071A (en) * | 2013-11-07 | 2015-06-03 | 株式会社鹭宫制作所 | Electric valve |
| CN105909804A (en) * | 2015-02-24 | 2016-08-31 | 株式会社不二工机 | Electric valve and method for assembling the same |
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| JP2008232290A (en) * | 2007-03-20 | 2008-10-02 | Saginomiya Seisakusho Inc | Needle valve, and refrigerating cycle device having the same |
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| US8157184B2 (en) * | 2008-05-29 | 2012-04-17 | Kabushiki Kaisha Saginomiya Seisakusho | Expansion valve, heat pump type refrigeration cycle apparatus, and air handling unit |
| JP2010053906A (en) * | 2008-08-26 | 2010-03-11 | Panasonic Corp | Fluid bearing device, spindle motor with the same, and information processor |
| CN103245138B (en) * | 2012-02-10 | 2015-07-01 | 株式会社鹭宫制作所 | Expansion valve |
| JP5627612B2 (en) * | 2012-02-10 | 2014-11-19 | 株式会社鷺宮製作所 | Expansion valve |
| JP5943427B2 (en) * | 2013-03-15 | 2016-07-05 | 株式会社鷺宮製作所 | Manufacturing method of valve device |
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2017
- 2017-01-31 JP JP2017016004A patent/JP6726116B2/en active Active
-
2018
- 2018-01-09 CN CN202011612736.6A patent/CN112781282A/en active Pending
- 2018-01-09 CN CN201810019632.0A patent/CN108375250B/en active Active
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| JP2011204317A (en) * | 2010-03-25 | 2011-10-13 | Seiko Instruments Inc | Rolling bearing device and pivot device |
| CN104676071A (en) * | 2013-11-07 | 2015-06-03 | 株式会社鹭宫制作所 | Electric valve |
| CN105909804A (en) * | 2015-02-24 | 2016-08-31 | 株式会社不二工机 | Electric valve and method for assembling the same |
| CN205715985U (en) * | 2016-05-06 | 2016-11-23 | 浙江盾安禾田金属有限公司 | A kind of electric expansion valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20220341638A1 (en) * | 2019-09-27 | 2022-10-27 | Zhejiang Dunan Artificial Environment Co., Ltd. | Electronic Expansion Valve and Assembling Method of Electronic Expansion Valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112781282A (en) | 2021-05-11 |
| JP6726116B2 (en) | 2020-07-22 |
| JP2018123879A (en) | 2018-08-09 |
| CN108375250B (en) | 2021-01-08 |
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