CN108397554A - Motor-driven valve - Google Patents
Motor-driven valve Download PDFInfo
- Publication number
- CN108397554A CN108397554A CN201810214868.XA CN201810214868A CN108397554A CN 108397554 A CN108397554 A CN 108397554A CN 201810214868 A CN201810214868 A CN 201810214868A CN 108397554 A CN108397554 A CN 108397554A
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- Prior art keywords
- mentioned
- valve
- shell
- interior threaded
- valve shell
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K1/02—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 with screw-spindle
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Valve Housings (AREA)
Abstract
The present invention provides a kind of motor-driven valve, high-precision it can carry out centering of the interior threaded part relative to valve shell without using a jig, and can realize the efficient activity of assembly operation, and the pressure loss is not will produce when the streaming flow in flow path, so as to inhibit manufacturing cost.Motor-driven valve at least has：Valve shell；Interior threaded part；Externally threaded item；Spool；And press-in portion, it is pressed into valve shell by the portion of will be pressed into, to carry out the centering of spool relative to valve shell, interior threaded part has the flange part circumferentially formed on the top of press-in portion, when interior threaded part is pressed into valve shell, flange part abuts the upper end for being supported on valve shell, and, in interior threaded part, diameter first stepped part smaller than the diameter of press-in portion is circumferentially formed between press-in portion and flange part, when flange part abutting is supported on the upper end of valve shell, gap is formed between the upper end and press-in portion of valve shell.
Description
The application is divisional application；Its female case application No. is " 2015103821813 ", it is entitled " motor-driven valve ".
Technical field
The present invention relates to the motor-driven valve in the freeze cycle of air conditioner etc. to be controlled the flow of refrigerant is arranged.
Background technology
In the past, as the motor-driven valve connected in freeze cycle, such as 100 (patent document of motor-driven valve shown in fig. 5 is used
1)。
Such motor-driven valve 100 has valve shell 110, and columned valve chamber 112 is formed in valve shell 110.Also,
Valve shell 110 is equipped with a junction block 114 being connected to from side with valve chamber 112, and in the lower end of valve chamber 112
Secondary joint pipe 116 is installed.
In addition, being equipped with valve base part 118 in valve shell 110, and in 112 side of the valve chamber of secondary joint pipe 116.Moreover,
In valve base part 118, it is formed with the rounded valve port 120 of the section shape of connection valve chamber 112 and secondary joint pipe 116.
Opening portion 122 in the upper end of valve shell 110, is equipped with interior threaded part 130.
What interior threaded part 130 was fitted into generally cylindrical main part 132, in the opening portion of valve shell 110 122
Fitting portion 134 and cricoid flange part 136.
It is formed with along the longer pilot hole 137 in the directions axis L in main part 132, and is formed on the top of pilot hole 137
There is internal thread part 140.
In pilot hole 137, can be slidably fitted into along the directions axis L has cylindric vavle shelf 133.Vavle shelf 133 and valve chamber
112 are co-axially mounted, and spool 138 is fixed in the lower end of the vavle shelf 133, which has needle-valve 141 in end.
Also, in vavle shelf 133, spring base 139 is equipped in a manner of it can be moved along the directions axis L, in spring base 139
Compression helical spring 142 is installed to give the defined state loaded between spool 138.
Outer peripheral edge portion in the opening portion of valve shell 110 122 is airtightly fixed with the shell of stepper motor by welding
144, form columned rotor chamber 146 using the shell 144.
In rotor chamber 146, it can be rotatably equipped with the magnet rotor 148 that peripheral part is geomagnetic into multipole, in the magnetism
Rotor 148 is fixed with armature spindle 160.
Also, in the periphery of shell 144, it is equipped with stator coil (not shown), by the stator coil (not shown)
Apply pulse signal, to make magnet rotor 148 accordingly be rotated with the umber of pulse.
Then, it because of the rotation of the magnet rotor 148, is rotated with the armature spindle 160 of 148 one of magnet rotor.
In addition, being equipped with the rotary position-limit mechanism 150 of the rotation of limitation magnet rotor 148 at the top of shell 144.
The upper end of vavle shelf 133 engages with the lower end of armature spindle 160, and vavle shelf 133 is with the state of suspension by armature spindle 160
Bearing is that can rotate.Also, it is formed with external thread part 152 in armature spindle 160, the external thread part 152 and is formed in internal thread
The internal thread part 140 of component 130 is screwed.The internal thread of the external thread part 152 and interior threaded part 130 of the armature spindle 160
Portion 140 constitutes feed screw mechanism.
By the feed screw mechanism, armature spindle 160 is moved with the rotation of magnet rotor 148 along the directions axis L.Cause
Armature spindle 160 is moved with the rotation and along what the directions axis L carried out, and spool 138 and vavle shelf 133 are moved along the directions axis L together
It is dynamic.
Moreover, spool 138 increases and decreases the opening area of valve port 120 using the part of needle-valve 141, to in a connector
The flow of the fluid flowed between pipe 114 and secondary joint pipe 116 is controlled.
However, in such motor-driven valve 100, when installing interior threaded part 130 relative to valve shell 110, by interior spiral shell
The flange part 136 of line component 130 is positioned in the outer peripheral edge portion of opening portion 122 of valve shell 110, and (not using special fixture
Diagram) etc., it is aligned in manufacturing process, and carry out the outer peripheral edge portion of flange part 136 and the opening portion 122 of valve shell 110
Between welding.
Then, after having carried out the fixation between valve shell 110 and interior threaded part 130, this time in 110 overlying of valve shell
Lid housing 144, and the lower end of the opening edge and shell 144 to valve shell 110 is welded, and motor-driven valve 100 is thus completed.
On the other hand, motor-driven valve 200 shown in fig. 6 is substantially construction identical with above-mentioned motor-driven valve 100, but makes valve
Construction when shell 210 and interior threaded part 230 are fitted into is different from motor-driven valve 100 (patent document 2).
Specifically, the flange part 236 of interior threaded part 230 is inserted into the opening portion 222 of valve shell 210, and at this
The outer peripheral edge portion and interior threaded part of the opening portion 222 of valve shell 210 are further fixed under state using installation metal parts 270
230, to fixed valve shell 210 and interior threaded part 230.
Also, the lower end of interior threaded part 230 is directly embedded in the valve base part 218 with valve port 220.In addition, Fig. 6
In, symbol 214 is a junction block, and 216 be secondary joint pipe, and 238 be spool, and 240 be internal thread part, and 241 be needle-valve, 244
It is shell, 248 be magnet rotor, and 252 be external thread part, and 260 be armature spindle.
In any one motor-driven valve of such previous motor-driven valve 100,200, pass through the valve in valve shell 110,210
Mouthfuls 120,220 and interior threaded part 130,230 in keep concentric, reliably to utilize needle-valve 141,241 be opened and closed valve port 120,
220, to which the process for fixing interior threaded part 130,230 relative to valve shell 110,210 is accurately to keep motor-driven valve
100, the extremely important process of aspect of the precision of 200 flow adjustment.
Existing technical literature
Patent document 1：Japanese Unexamined Patent Publication 2012-77879 bulletins
Patent document 2：Japanese Unexamined Patent Publication 2013-204613 bulletins
Invention content
Problems to be solved by the invention
However, in motor-driven valve 100 disclosed in patent document 1, the special fixture (not shown) of high dimensional accuracy is used
Centering etc. of the interior threaded part 130 relative to valve shell 110 is carried out, high assembly precision is that manufacturing process is required, such as
Shown in Fig. 7, interior threaded part 130 also has the possibility for the side (left side in Fig. 7) for being biased to valve shell 110, in this case, can not
It is reliably opened and closed valve port 120 using needle-valve 141, is very troublesome construction.In figure, symbol G is the bias of off-axis line L.
In addition, as shown in figure 8, after welding 136 one end of flange part of valve shell 110 and interior threaded part 130, then weld
Valve shell 110 and shell 144 are connect, welding sequence, operating efficiency are poor twice to need.Symbol 181,183 is weld part in Fig. 8
Position.
In addition, for motor-driven valve 200 disclosed Patent Document 2, as shown in figure 9, due to interior threaded part 230
The position that lower end is surrounded in figure by "○" in the flow path being formed between a junction block 214 and secondary joint pipe 216, i.e.
In the presence of so there is the possibility for generating the pressure loss after streaming flow.Therefore, particularly with the valve port of big flow 220, flow
It reduces, to need to limit the flow of the fluid used.
In addition, the motor-driven valve 200 is compared with motor-driven valve 100 disclosed in patent document 1, it is interior when being installed in valve shell 210
When screwed part 230, need that installation metal parts 270 is in addition arranged, become get higher manufacturing cost will be because.Practical feelings as a result,
Condition is the exploitation of the further motor-driven valve of demand.
In view of such present situation, the purpose of the present invention is to provide following motor-driven valves：It can without using a jig in high precision
Centering of the interior threaded part relative to valve shell is carried out, and can realize the efficient activity of assembly operation, and in flow path
It not will produce the pressure loss when streaming flow, manufacturing cost can be inhibited.
The present invention is project in order to realize conventional art as described above and purpose and the invention that proposes,
The motor-driven valve of the present invention at least has：
Valve shell has the seat portion for being formed with valve port；
Interior threaded part, fixed configurations have internal thread part in above-mentioned valve shell；
Externally threaded item has the external thread part being screwed with above-mentioned interior threaded part；
Spool, is set to above-mentioned externally threaded item, and with the above-mentioned external thread part that is acted by the driving by electro-motor
Part links to carry out variable control to the opening area of above-mentioned valve port；And
Press-in portion, is set to the periphery side of above-mentioned interior threaded part, and is pressed into the inner periphery side portion of above-mentioned valve shell,
By the way that above-mentioned press-in portion to be pressed into above-mentioned valve shell, to carry out determining for above-mentioned spool relative to above-mentioned valve shell
The heart,
Said electric valve is characterized in that,
Above-mentioned interior threaded part has the flange part circumferentially formed on the top of above-mentioned press-in portion,
When above-mentioned interior threaded part is pressed into above-mentioned valve shell, above-mentioned flange part abutting is supported on above-mentioned valve shell
Upper end, also,
In above-mentioned interior threaded part,
Circumferentially be formed between above-mentioned press-in portion and flange part diameter it is smaller than the diameter of above-mentioned press-in portion first
Stepped part,
When above-mentioned flange part abutting is supported on the upper end of above-mentioned valve shell, in the upper end of above-mentioned valve shell
It is formed with gap between above-mentioned press-in portion.
It, can be simple and in being accurately proceed if being equipped with press-in portion in the periphery side of interior threaded part like this
Centering of the screwed part relative to valve shell.Also, it is also simple due to constructing, so who can reliably carry out assembling behaviour
Make.Moreover, can be felt relieved using existing component parts, fixture need not be also used, more can to compared with the past
Inhibit the manufacturing cost of motor-driven valve.
If being configured to, when interior threaded part is pressed into valve shell, flange part abuts the upper end for being supported on valve shell
Portion then can reliably carry out positioning along the vertical direction of the interior threaded part relative to valve shell.
If being formed with the first stepped part like this, at least when welding valve shell and interior threaded part, welding can be made
Heat caused by position is difficult to transmit to interior threaded part.
Assuming that heat when welding is transferred to interior threaded part, then in the resin portion of interior threaded part that is, press-in portion etc.
In, there is the worry being deformed, thus there is the possibility for the centering that cannot carry out valve shell and interior threaded part well.Cause
This, ensures that gap is very important by the formation of the first stepped part.
Also, the motor-driven valve of the present invention is characterized in that,
It is equipped with to above-mentioned press-in portion being circumferentially separated along the periphery side of above-mentioned interior threaded part multiple.
Multiple press-in portion are equipped with if being circumferentially separated like this, in indentation, the deformation of interior threaded part can be made
Position is made a concession into the space for not forming press-in portion, to preferably.
Also, the motor-driven valve of the present invention is characterized in that,
Shell is arranged to, and the upper end for being supported on above-mentioned valve shell is abutted in the flange part for making above-mentioned interior threaded part
Under state, covered above above-mentioned valve shell,
Above-mentioned interior threaded part is circumferentially formed with second step ladder in the top of flange part, and in above-mentioned shell
It is formed with gap between all sides and above-mentioned interior threaded part.
It, can when welding valve shell, interior threaded part and shell together if being formed with second step ladder like this
Heat caused by welding position is set to be difficult to transmit to by the top and the bottom of the interior threaded part in boundary line of flange part.
Also, the motor-driven valve of the present invention is characterized in that,
Above-mentioned valve shell, above-mentioned flange part, above-mentioned shell are made of metal,
Quilt between at least metal above-mentioned valve shell and above-mentioned flange part and between above-mentioned flange part and above-mentioned shell
Solder joints.
In this way, if valve shell, flange part, shell are made of metal, in primary welding, three components can be made indirect
It closes, it is compared with the past, it can more inhibit manufacturing cost, and operating efficiency can be improved.
The effect of invention is as follows.
In accordance with the invention it is possible to provide following motor-driven valve：The interior threaded part of motor-driven valve has in outer peripheral portion to be pressed into
The press-in portion of the inner periphery side portion of valve shell is pressed by the portion of will be pressed into valve shell, to carry out determining for spool relative to valve shell
The heart carries out centering of the interior threaded part relative to valve shell so as to high-precision without using a jig, and can realize group
The efficient activity of operation is filled, and the pressure loss is not will produce when the streaming flow in flow path, so as to inhibit manufacturing cost.
Description of the drawings
Fig. 1 is the longitudinal section view of the motor-driven valve of the present invention.
Fig. 2 is the stereogram of the interior threaded part of the motor-driven valve of the present invention.
Fig. 3 is the enlarged drawing near the opening portion of amplification expression motor-driven valve shown in FIG. 1.
Fig. 4 is the shape when the opening portion of valve shell is pressed into the press-in portion of interior threaded part for indicating the motor-driven valve of the present invention
The main portion sectional view of state, Fig. 4 (a) and Fig. 4 (b) indicate the example of embodiment.
Fig. 5 is the longitudinal section view of previous motor-driven valve.
Fig. 6 is the longitudinal section view of previous other motor-driven valves.
Fig. 7 is the definition graph for illustrating the centering conducted in previous motor-driven valve shown in fig. 5.
Fig. 8 is for illustrating the definition graph welded twice conducted in previous motor-driven valve shown in fig. 5.
Fig. 9 is the explanation of the construction for illustrating the generation pressure loss in previous other motor-driven valves shown in fig. 6
Figure.
In figure：
1,100,200-motor-driven valve, 10,110,210-valve shells, 12,112-valve chambers, 14,114,214-once connect
Head tube, 16,116,216-secondary joint pipes, 18,118,218-valve base parts, 20,120,220-valve ports, 22,122,
222-opening portions, 30,130,230-interior threaded parts, 32,132-main parts, 33,133-vavle shelves, 34-press-in portion, 36,
136,236-flange part, 37,137-pilot holes, 38,138-spools, 40,140-internal thread parts, 41,141,241-needles
Valve, 42,142-compression helical springs, 44,144,244-shells, 46,146-rotor chambers, 48,148-magnet rotors, 52,
152-external thread parts, 60,160-armature spindles, the 70-the first stepped part, 72-second step ladders, 80,181,183-weld parts
Position, 90,92-gaps, 134-fitting portions, 150-rotary position-limit mechanisms, 270-installation metal parts, G-bias, L-
Axis.
Specific implementation mode
Hereinafter, based on attached drawing, embodiments of the present invention will be described in further detail.
In freeze cycle of the motor-driven valve of the present invention such as being arranged in air conditioner, it is used to carry out the flow of refrigerant
Control.
For the motor-driven valve of the present invention substantially compared with previous motor-driven valve 100,200 described above, local structure is different,
But basic construction is identical, to simply be illustrated first to basic construction.
As shown in Figure 1, the motor-driven valve 1 of the present invention has valve shell 10, columned valve chamber 12 is formed in valve shell 10.
Also, a junction block 14 being connected to from side with valve chamber 12 is installed in valve shell 10, and in the lower end of valve chamber 12
Portion is equipped with secondary joint pipe 16.
In addition, being equipped with valve base part 18 in valve shell 10, and in 12 side of the valve chamber of secondary joint pipe 16.Moreover, in valve
Base member 18 is formed with the rounded valve port 20 of section shape, which is connected to valve chamber 12 and secondary joint pipe 16.
Interior threaded part 30 is installed in the opening portion 22 of the upper end of valve shell 10.
Interior threaded part 30 has generally cylindrical main part 32, the indentation being pressed into the opening portion 22 of valve shell 10
Portion 34 and cricoid flange part 36.
It is formed with pilot hole 37 in main part 32 and along the directions axis L, and interior spiral shell is formed on the top of pilot hole 37
Line portion 40.
In pilot hole 37, being fitted into a manner of it can be slided along the directions axis L has cylindric vavle shelf 33.Vavle shelf 33 and valve
Room 12 is co-axially mounted, and spool 38 is fixed in the lower end of the vavle shelf 33, which has needle-valve 41 in end.
Also, in vavle shelf 33, in a manner of it can be moved along the directions axis L be equipped with spring base 39, spring base 39 with
Compression helical spring 42 is installed to give the defined state loaded between spool 38.
Outer peripheral edge portion in the opening portion of valve shell 10 22 is equipped with the shell 44 of stepper motor, is formd using the shell 44
Columned rotor chamber 46.Outer peripheral edge portion in the opening portion of valve shell 10 22 places the flange part 36 of interior threaded part 30, and
Shell 44 is covered on it, will be welded as between valve shell 10 and flange part 36 and between flange part 36 and shell 44 later
It one piece, is thus engaged between three components.
In addition, it is geomagnetic into the magnet rotor 48 of multipole equipped with peripheral part in a manner of it can rotate in rotor chamber 46,
It is fixed with armature spindle 60 in the magnet rotor 48.
Also, it is equipped with stator coil (not shown) in the periphery of shell 44, by being given to the stator coil (not shown)
Pulse signal is given, thus magnet rotor 48 is accordingly rotated with the umber of pulse.
Then, it because of the rotation of the magnet rotor 48, is rotated with the armature spindle 60 of 48 one of magnet rotor.
The upper end of vavle shelf 33 engages with the lower end of armature spindle 60, and vavle shelf 33 is supported with the state of suspension by armature spindle 60
For that can rotate.Also, it is formed with external thread part 52 in armature spindle 60, the external thread part 52 and is formed in interior threaded part 30
Internal thread part 40 is screwed.The external thread part 52 of the armature spindle 60 and the internal thread part 40 of interior threaded part 30 constitute screw thread
Feed mechanism.
By the feed screw mechanism, armature spindle 60 is moved with the rotation of magnet rotor 48 along the directions axis L.Because turning
Sub- axis 60 is moved with the rotation and along what the directions axis L carried out, and spool 38 is moved along the directions axis L together with vavle shelf 33.
Moreover, spool 38 increases and decreases the opening area of valve port 20 using the part of needle-valve 41, to in a junction block
The flow of the fluid flowed between 14 and secondary joint pipe 16 is controlled.
In the motor-driven valve 1 made of constituting like this, the major part of interior threaded part 30 is by resin system, and flange part 36 is
Made of metal.When shaping interior threaded part 30, it will be positioned in metal mold and be embedded in into as the metallic plate of flange part 36
Shape, thus, it is possible to obtain interior threaded part 30 made of metal part and resin portion integration.Positioned at the upper of the flange part 36
Under shell 44 and valve shell 10 also be made of metal.
In the present invention, in such motor-driven valve 1, make valve shell 10 and interior threaded part 30 by as in a manner of concentric
In construction when fixed, especially there is latent structure, this point is illustrated below.
As shown in Figure 1 and Figure 2, the interior threaded part 30 of motor-driven valve 1 of the invention is in the peripheral side of interior threaded part 30
Portion is formed with press-in portion 34.In addition, in Fig. 2, the upper end of interior threaded part 30 is simple rectilinear form, is equipped with spiral originally
Slot, simplified illustration.
When valve shell 10 fixes interior threaded part 30, which is pressed fit into the opening portion 22 of valve shell 10
The position of inner periphery side portion.
Also, as shown in Fig. 2, the press-in portion 34 being circumferentially separated along the periphery side of interior threaded part 30 be equipped with it is more
It is a.In the present embodiment, it is circumferentially separated and is equipped with press-in portion 34 at four positions, but number is not particularly limited, such as
Can also be every two positions of 180 ° of angle setting.But when being equipped with pressure every two positions of 180 ° of angle
In the case of entering portion 34, when being pressed into interior threaded part 30 to valve shell 10, there are the offset of interior threaded part 30 relative to valve
The oblique inclined worry of shell 10.As a result, in order to further reliably fix interior threaded part 30 in valve shell 10, preferably three
A position arrangement above press-in portion 34.
If like this in three position arrangement above press-in portion 34, when relative to the indentation interior threaded part 30 of valve shell 10
When, without the worry of the left and right offset forwards, backwards of interior threaded part 30, so as to reliably feel relieved.In addition, along interior spiral shell
In the case that circumferential four positions every 90 degree of the periphery side of line component 30 are equipped with press-in portion 34, it is easy to be embedded in into
Metal mold when shape interior threaded part 30 divides mould, to preferably.
In addition, the reasons why as press-in portion 34 that multiple interior threaded parts 30 are arranged, when the inner periphery side portion to valve shell 10
After indentation, the yielding of the deformation of the press-in portion for interior threaded part 30 is needed.
Even if the whole face in the periphery side of interior threaded part 30 is configured to the feelings contacted with the inner periphery side portion of valve shell 10
Under condition, also there is the possibility that rupture is generated in interior threaded part 30 in indentation.Thus it is preferred to which multiple press-in portion 34 are arranged.
As shown in figure 3, such press-in portion 34 is configured to, circumferentially it is formed between press-in portion 34 and flange part 36
Interior threaded part 30 with first stepped part 70 is pressed into valve shell 10, and makes interior threaded part 30 by the first stepped part 70
Flange part 36 abut and be supported on the upper end of valve shell 10, at this time in the pressure of the upper end of valve shell 10 and interior threaded part 30
Enter and is formed with gap 90 shown in "○" between portion 34.In addition, symbol 80 is welding position in figure.
In this way, the first stepped part 70 is at least when welding valve shell 10 and interior threaded part 30 for making welding position 80
Generated heat is difficult to the part transmitted to interior threaded part 30.
If the construction that heat when welding is transmitted to interior threaded part 30, i.e., until flange part 36 is and valve shell 10
The close such mode of ground contact of inner periphery side portion has then in the resin portion of interior threaded part 30 that is, press-in portion 34 etc.
Thus the worry being deformed has the possibility for the centering that cannot carry out valve shell 10 and interior threaded part 30 well.As a result,
Ensure that gap 90 is very important by the formation of the first stepped part 70.
In addition, interior threaded part 30 is preferably configured as, second step ladder is circumferentially formed in the top of flange part 36
72, it is formed with gap 92 between the inner circumferential side and interior threaded part 30 of shell 44.
If in this way, being also formed with second step ladder 72, valve shell 10, interior threaded part 30 and shell are being welded together
When 44, heat caused by welding position can be made to be difficult to pass for the top and the bottom of the interior threaded part 30 in boundary line to flange part 36
It passs.
As a result, in addition to the formation of the first stepped part 70, ensure that gap 92 is also extremely important by second step ladder 72
's.
As shown in Fig. 2 and Fig. 4 (a), such press-in portion 34 be reliably be pressed into valve shell 10 inner periphery side portion that
The corner section of the mode of sample, i.e. rectangular shape mode as circular arc chamfering, but it is not particularly limited to which, example
As that can also be that there is mode made of circular arc in the front end of chevron as shown in Fig. 4 (b), various sides in addition can also be mixed
Formula etc. can be changed suitably.
In this way, in the motor-driven valve 1 of the present invention, the interior threaded part 30 of especially motor-driven valve 1 has in outer peripheral portion is pressed
The press-in portion 34 for entering the inner periphery side portion of valve shell 10, by the way that the press-in portion 34 to be pressed into valve shell 10, relative to valve shell
10 carry out the centering of spool 38, and interior threaded part 30 is carried out relative to valve shell 10 so as to high-precision without using a jig
Centering, and can realize the efficient activity of assembly operation, and not will produce the pressure loss, energy when the streaming flow in flow path
Enough inhibit manufacturing cost, motor-driven valve 1 of the invention is invented based on completely new technological thought.
More than, the preferred mode of the motor-driven valve 1 of the present invention is illustrated, but the present invention is not limited to above-mentioned sides
Formula can make various changes in the range of not departing from the purpose of the present invention.
Claims (4)
1. a kind of motor-driven valve, at least has：
Valve shell has the seat portion for being formed with valve port；
Interior threaded part, fixed configurations have internal thread part in above-mentioned valve shell；
Externally threaded item has the external thread part being screwed with above-mentioned interior threaded part；
Spool is set to above-mentioned externally threaded item, and joins with the above-mentioned externally threaded item acted by the driving by electro-motor
It moves to carry out variable control to the opening area of above-mentioned valve port；And
Press-in portion, is set to the periphery side of above-mentioned interior threaded part, and is pressed into the inner periphery side portion of above-mentioned valve shell,
By the way that above-mentioned press-in portion is pressed into above-mentioned valve shell, to carry out the centering of above-mentioned spool relative to above-mentioned valve shell,
Said electric valve is characterized in that,
Above-mentioned interior threaded part has the flange part circumferentially formed on the top of above-mentioned press-in portion,
When above-mentioned interior threaded part is pressed into above-mentioned valve shell, above-mentioned flange part abuts the top for being supported on above-mentioned valve shell
End, also,
In above-mentioned interior threaded part,
Diameter first ladder smaller than the diameter of above-mentioned press-in portion is circumferentially formed between above-mentioned press-in portion and flange part
Portion,
By above-mentioned flange part abutting be supported on the upper end of above-mentioned valve shell when, above-mentioned valve shell upper end with it is upper
It states and is formed with gap between press-in portion.
2. motor-driven valve according to claim 1, which is characterized in that
It is equipped with to above-mentioned press-in portion being circumferentially separated along the periphery side of above-mentioned interior threaded part multiple.
3. motor-driven valve according to claim 1 or 2, which is characterized in that
Shell is arranged to, in the state of so that above-mentioned flange part abutting is supported on the upper end of above-mentioned valve shell, from above-mentioned valve
It is covered above shell,
Above-mentioned interior threaded part is circumferentially formed with second smaller than the diameter of above-mentioned press-in portion of diameter in the top of flange part
Stepped part, and it is formed with gap between the inner circumferential side and above-mentioned interior threaded part of above-mentioned shell.
4. motor-driven valve according to claim 3, which is characterized in that
Above-mentioned valve shell, above-mentioned flange part, above-mentioned shell are made of metal,
It is soldered between at least metal above-mentioned valve shell and above-mentioned flange part and between above-mentioned flange part and above-mentioned shell
Engagement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014147983A JP6214488B2 (en) | 2014-07-18 | 2014-07-18 | Motorized valve |
| JP2014-147983 | 2014-07-18 | ||
| CN201510382181.3A CN105276199B (en) | 2014-07-18 | 2015-07-02 | Motor-driven valve |
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| CN201510382181.3A Division CN105276199B (en) | 2014-07-18 | 2015-07-02 | Motor-driven valve |
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| CN108397554A true CN108397554A (en) | 2018-08-14 |
| CN108397554B CN108397554B (en) | 2019-11-26 |
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| CN201810214868.XA Active CN108397554B (en) | 2014-07-18 | 2015-07-02 | Motor-driven valve |
| CN201510382181.3A Active CN105276199B (en) | 2014-07-18 | 2015-07-02 | Motor-driven valve |
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| CN201510382181.3A Active CN105276199B (en) | 2014-07-18 | 2015-07-02 | Motor-driven valve |
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| CN (2) | CN108397554B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017161051A (en) * | 2016-03-11 | 2017-09-14 | 株式会社鷺宮製作所 | Motor-operated valve |
| WO2017169320A1 (en) * | 2016-03-31 | 2017-10-05 | 株式会社鷺宮製作所 | Motorized valve and refrigeration cycle system |
| JP6753789B2 (en) * | 2017-01-25 | 2020-09-09 | 株式会社鷺宮製作所 | Solenoid valve and refrigeration cycle system |
| JP6748591B2 (en) * | 2017-03-10 | 2020-09-02 | 株式会社鷺宮製作所 | Motorized valve and refrigeration cycle system |
| CN109210206B (en) * | 2017-06-30 | 2019-11-01 | 浙江三花汽车零部件有限公司 | A kind of motor-driven valve |
| WO2019001249A1 (en) | 2017-06-30 | 2019-01-03 | 浙江三花汽车零部件有限公司 | Electric valve |
| CN107906214B (en) * | 2017-12-14 | 2023-05-19 | 浙江中宝自控元件有限公司 | Flow control valve |
| JP6762036B2 (en) * | 2018-01-17 | 2020-09-30 | 株式会社不二工機 | Solenoid valve |
| CN111954776B (en) * | 2018-03-26 | 2022-07-26 | 株式会社不二工机 | Electric valve |
| JP6772210B2 (en) * | 2018-03-28 | 2020-10-21 | 株式会社不二工機 | Solenoid valve |
| JP6791508B2 (en) * | 2018-05-29 | 2020-11-25 | 株式会社不二工機 | Solenoid valve |
| JP7144994B2 (en) * | 2018-07-19 | 2022-09-30 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| CN113785148B (en) * | 2019-05-15 | 2023-10-13 | 株式会社不二工机 | flow control valve |
| CN112901790B (en) * | 2019-11-19 | 2022-05-10 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| JP7141423B2 (en) * | 2020-04-09 | 2022-09-22 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| JP6823222B1 (en) * | 2020-08-18 | 2021-01-27 | 太平洋工業株式会社 | Solenoid valve |
| CN117823632A (en) * | 2022-09-29 | 2024-04-05 | 浙江三花汽车零部件有限公司 | Electric valve |
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| CN1749607A (en) * | 2004-09-17 | 2006-03-22 | 株式会社不二工机 | Electric valve |
| CN102444740A (en) * | 2010-10-05 | 2012-05-09 | 株式会社鹭宫制作所 | Electric valve |
| CN102650336A (en) * | 2011-02-24 | 2012-08-29 | 株式会社不二工机 | Electric valve |
| CN103185157A (en) * | 2011-12-27 | 2013-07-03 | 株式会社鹭宫制作所 | Control valve |
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| JP2003056736A (en) * | 2001-08-13 | 2003-02-26 | Saginomiya Seisakusho Inc | Motor-operated valve |
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| JP2008050969A (en) * | 2006-08-23 | 2008-03-06 | Uchiyama Mfg Corp | Mounting structure for thermostat |
| JP3145048U (en) * | 2008-07-11 | 2008-09-25 | 株式会社鷺宮製作所 | Electric expansion valve and refrigeration cycle |
| JP4669051B2 (en) * | 2008-07-16 | 2011-04-13 | 株式会社鷺宮製作所 | Motorized valve |
| JP5291477B2 (en) * | 2009-01-22 | 2013-09-18 | 株式会社不二工機 | Motorized valve |
| JP5424919B2 (en) * | 2010-02-05 | 2014-02-26 | 株式会社不二工機 | Motorized valve |
| CN102454818A (en) * | 2010-10-15 | 2012-05-16 | 浙江三花股份有限公司 | Electric valve |
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| CN1749607A (en) * | 2004-09-17 | 2006-03-22 | 株式会社不二工机 | Electric valve |
| JP2006084012A (en) * | 2004-09-17 | 2006-03-30 | Fuji Koki Corp | Motor operated valve |
| CN102444740A (en) * | 2010-10-05 | 2012-05-09 | 株式会社鹭宫制作所 | Electric valve |
| CN102650336A (en) * | 2011-02-24 | 2012-08-29 | 株式会社不二工机 | Electric valve |
| CN103185157A (en) * | 2011-12-27 | 2013-07-03 | 株式会社鹭宫制作所 | Control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108397554B (en) | 2019-11-26 |
| JP2016023710A (en) | 2016-02-08 |
| CN105276199A (en) | 2016-01-27 |
| JP6214488B2 (en) | 2017-10-18 |
| CN105276199B (en) | 2018-04-17 |
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