CN1920354A - Valve device and manufacturing method thereof - Google Patents
Valve device and manufacturing method thereof Download PDFInfo
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- CN1920354A CN1920354A CN 200610115069 CN200610115069A CN1920354A CN 1920354 A CN1920354 A CN 1920354A CN 200610115069 CN200610115069 CN 200610115069 CN 200610115069 A CN200610115069 A CN 200610115069A CN 1920354 A CN1920354 A CN 1920354A
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- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims description 12
- 238000005219 brazing Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 6
- 238000005476 soldering Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The present invention provided a valve device. This valve device comprises: a cylindrical main body having a small-diameter portion, and a large-diameter portion connected with the small-diameter portion 11a through a step portion, and also having a joint connecting hole on the large-diameter portion; a first joint inserted into the joint connecting hole and joined to the large-diameter portion; a circular valve seat member having a valve seat portion and a cylindrical joint retaining portion continued from the valve seat portion, and joined to an opening end portion of the large-diameter portion at its outer peripheral edge portion; a second joint joined to the joint retaining portion in a state of being fitted thereto; a valve element having a plunger slidably fitted to the small-diameter portion, and projecting from the plunger to be opposite to the valve seat portion to open and close the valve seat portion; and a valve element driving means for opening and closing, and driving the valve element.
Description
Technical field
The present invention relates to a kind of control valve unit of easy manufacturing.
Background technique
Open the example that the stream that discloses convection cell in the 2004-092664 communique carries out the electromagnetic switch valve of switch the spy.This solenoid valve comprises: valve body, plunger (plunger), attraction part, valve body, valve seat form parts, valve seat, helical spring and electromagnetic coil.The valve body of stainless steel forms the tubular of one end sealing.Plunger can be housed in an end of this valve body with being free to slide.Attract part to embed the central part of valve body in the mode relative with plunger.Valve body connects this attraction part, is connected with plunger.The valve seat of stainless steel forms the opening that parts clog the other end of valve body.Form at this valve seat and to form on parts and carry out the valve seat of switch by valve body and be configured in plunger and attract helical spring generation active force between the part, make valve body lift off a seat.Electromagnetic coil carries out excitation to attracting part, makes valve body overcome this helical spring elastic force to clog valve seat.
Drive the solenoid valve that discloses the plunger, valve body, attraction part, spring and the electromagnetic coil that have valve body, make tubular in the 2002-139169 communique the spy.One end of valve body is crooked to the inside, does the tubular that is shaped as seat portion.The plunger of making tubular can be housed in an end of this valve body with being free to slide.The front end of the valve body that is kept by this plunger can carry out switch to seat portion.Attract part to embed in the valve body in the mode of the opening of the other end that clogs valve body.Spring is installed between the cardinal extremity of this attraction part and valve body, and valve body is applied elastic force, to clog seat portion.Electromagnetic coil carries out excitation to attracting part, makes valve body overcome the elastic force of this spring, and valve seat is opened.
Drive disclosed solenoid valve in the past in the 2004-092664 communique the spy, make the tubular of the end sealing of valve body.Therefore, with plunger with the valve body of its one and after attracting in the valve bodies of packing into such as part and helical spring, valve seat need be formed parts TIG to be welded on the valve body, with the opening of the other end that clogs valve body in advance.Therefore, the restriction of fit on is big, needs complicated manufacturing process.In addition, because a pair of copper pipe that will be connected with pipe arrangement forms the parts soldered joint with valve body and valve seat respectively, so, need be welded on operation on the valve body and separate and carry out with valve seat being formed parts TIG, therefore make the increase of operational sequence number and manufacturing expense.
Drive disclosed solenoid valve in the 2002-139169 communique the spy, the pair of joint soldering that can be connected with pipe arrangement is after on the valve body, plunger and valve body and spring are housed in the valve body, will attract part to embed the other end of valve body then, and be riveted into one.Therefore, open the 2004-092664 communique with the spy and compare, can make simply.This spy opens disclosed valve body in the 2002-139169 communique, under the less situation of the flow of the fluid that in pair of joint, flows effectively.But, along with the joint internal diameter increases, need to increase the volume of the valve chamber that in valve body, forms, therefore, there is the shortcoming of the weight increase that internal diameter increases to more than the needs, control valve unit is all of valve body.
Summary of the invention
The purpose of this invention is to provide a kind of easy manufacturing and assembling,, also can avoid the unnecessary maximization of valve body also can make the manufacture method of control valve unit He this control valve unit of all miniaturizations of device even the large diameter joint that can flow through a large amount of fluids is installed.
The a first aspect of the present invention that can reach this purpose is a kind of control valve unit, it is characterized in that, comprise: have minor diameter and the large-diameter portion that is connected with this minor diameter by stepped part, on this large-diameter portion, be formed with the connector engages hole, make cylindrical main body; Insert in the above-mentioned connector engages hole,, make first joint of tubular to engage with this large-diameter portion from the outstanding mode of above-mentioned large-diameter portion; Have seat portion and the coupled joint holding part of making tubular, outer peripheral portion engages with the open end of above-mentioned large-diameter portion, makes the length-wise axis valve base part of the ring-type of shape in line of above-mentioned seat portion and above-mentioned joint holding part and aforementioned body; Engage under chimeric state with above-mentioned joint holding part, make second joint of tubular; Have be free to slide the plunger chimeric with above-mentioned minor diameter, outstanding in the mode relative from this plunger with above-mentioned seat portion, can carry out the valve body of switch to above-mentioned seat portion; With the valve body driving mechanism that this valve body is carried out switch drive.
In the present invention, the operating valve body driving mechanism will guide in the minor diameter with the plunger of valve body one, utilize valve body that seat portion is carried out switch, moving of switch fluids or stopping that fluid moves between first joint and second joint.This control valve unit is that first joint, valve base part engage with main body to one and second joint and engage state into one with valve base part.Valve body is taken in to the large-diameter portion side from the open end side of minor diameter.
Control valve unit according to a first aspect of the invention can engage main body, first joint, valve base part and second joint together, and, after they engage, valve body and plunger can be inserted in the main body from the open end side of minor diameter.Therefore, control valve unit is made easily and is assembled, and can reduce its manufacturing expense.In addition, need only the size that as one man changes large-diameter portion with the diameter of first and second joints, do not need to change the diameter of minor diameter, so, can realize miniaturization and lightweight that control valve unit is all.
In the control valve unit of a first aspect of the present invention, the valve body driving mechanism can have: the spring bracket that is fixed on the ring-type on the stepped part; And be installed between this spring bracket and the plunger, the mode of portion applies the pressure spring of elastic force so that valve body is lifted off a seat.In this case, large-diameter portion can have and is used for spring bracket is fixed on caulking part on the main body.Thus, do not need to be used for spring bracket is fixed on the part that appends on the main body, weight that can the check valve device increases.
First joint can have from its outer circumferential face bulging, the positioning means that can end with the open end edge card in connector engages hole.In this case, be used to keep the anchor clamps of their relative position to omit in the time of can be with the main body and first connector engages or simplify, thereby can further simplify manufacturing process.
Large-diameter portion can also have at its open end from inner peripheral surface bulging, the position registration mechanism that can end with the outer peripheral portion card of seat portion.In this case, be used to keep the anchor clamps of their relative position to omit in the time of main body can being engaged with valve base part or simplify, thereby can further simplify manufacturing process.
Can respectively main body and first joint, main body and valve base part, valve base part and second joint be engaged together by furnace brazing.In this case, can carry out the whole bonding operation in the control valve unit simultaneously, thereby can improve its operability.
A second aspect of the present invention is the manufacture method of the control valve unit of a first aspect of the present invention, it is characterized in that, has: the operation of press molding cylindrical main body; On the large-diameter portion of aforementioned body, form the operation in connector engages hole; The operation of the valve base part of press molding ring-type; First joint of making tubular is inserted in the above-mentioned connector engages hole, above-mentioned valve base part is inserted in the open end of above-mentioned large-diameter portion, second joint that to make tubular again inserts in the above-mentioned joint holding part, with above-mentioned valve base part and above-mentioned first and second joints respectively under the state with respect to the aforementioned body location, the operation of together they being carried out furnace brazing; With valve body is inserted operation in the main body from above-mentioned minor diameter side.
In the present invention, by sheet material, tubing or be configured as preformed articles with the approaching regulation shape of body shape, press molding has the cylindrical main body of minor diameter and the large-diameter portion that is connected with this minor diameter by stepped part, and forms the connector engages hole on the large-diameter portion of main body.Further press molding has the ring valve base member of seat portion and the coupled joint holding part of making tubular.Then, this valve base part is inserted in the open end of large-diameter portion, and second joint that will make tubular insert in the joint holding part of valve base part, make the seat portion of this valve base part and the length-wise axis of joint holding part and main body become a straight line shape.Further, first joint of making tubular is inserted in the connector engages hole.Then, with valve base part and the one the and two joints respectively under the state with respect to the main body location, together they are carried out furnace brazing.Then, valve body is inserted in the main body from the minor diameter side.
The manufacture method of control valve unit according to a second aspect of the invention can be inserted valve body and plunger in the main body from the open end side of minor diameter after main body, first joint, valve base part and second joint are engaged together.Therefore, control valve unit is made easily and is assembled, and can reduce its manufacturing expense.In addition, need only the size that as one man changes large-diameter portion with the diameter of first and second joints, do not need to change the diameter of minor diameter, so, can realize the miniaturization that control valve unit is all.
In the manufacture method of the control valve unit of a second aspect of the present invention, can also have: before furnace brazing, the spring bracket of ring-type is inserted in the stepped part of body, be fixed in operation on the body by the riveted joint large-diameter portion.In this case, do not need to be used for spring bracket is fixed on the part that appends on the main body, weight that can the check valve device increases.
Description of drawings
Fig. 1 is applied to control valve unit of the present invention the sectional view of the dehumidifying of air bells conditioner with the internal structure of a mode of execution of throttle valve for expression.
Fig. 2 is the extraction amplification sectional view that the major component of throttle valve is used in dehumidifying shown in Figure 1, and the valve state is closed in expression.
Embodiment
Extract the Fig. 2 that amplifies with reference to Fig. 1 of its all cross section structure of expression with the major component of its valve body part, the dehumidifying that control valve unit of the present invention is applied to an air bells conditioner mode of execution with throttle valve is elaborated.The present invention is not only limited to such mode of execution, all changes that notion of the present invention comprised of putting down in writing in claims and revise can, therefore, also can be applied to belong to other any technology of purport of the present invention certainly.
The dehumidifying of present embodiment is out valve state, so-called electromagnetic drive type valve open in usual when the no electric circuit with throttle valve 10.This dehumidifying comprises with throttle valve 10: make cylindrical main body 11, make first joint 13 of tubular, the valve base part 14 of ring-type, second joint 16 of making tubular, valve body 18 and this valve body 18 is carried out the valve body driving mechanism 19 of switch drive.Main body 11 has minor diameter 11a and the large-diameter portion 11c that is connected with minor diameter 11a by stepped part 11b.First joint 13 that is formed by copper pipe is inserted in the last connector engages hole 12 that forms of large-diameter portion 11c of this main body 11.Valve base part 14 has seat portion 14a and the coupled joint holding part 14b that makes tubular, and outer peripheral portion engages with the open end 15 of large-diameter portion 11c.Second joint 16 that forms by copper pipe with the chimeric state of the joint holding part 14b of this valve base part 14 under, engage.Valve body 18 have be free to slide the plunger 17 chimeric with minor diameter 11a, outstanding in the mode relative from this plunger 17 with seat portion 14a, can carry out switch to seat portion 14a.
Not shown refrigerant cycle pipe arrangement is connected with first and second joints 13,16 respectively.At the lift off a seat valve position of opening shown in Figure 1 of the 14a of portion of valve body 18, first joint 13 and second joint 16 are in connected state by the valve chamber 20 that forms in large-diameter portion 11c.On the contrary, by the pass valve position shown in Figure 2 that is pressed on the seat portion 14a, first joint 13 and second joint 16 are communicated with by the throttling arrangement described later that inserts in the valve body 18 at valve body 18.
The valve body driving mechanism 19 of present embodiment has: the spring bracket 21 of ring-type applies pressure spring 22 and solenoid unit 23 that elastic force makes that valve body 18 leaves from seat portion 14a.Spring bracket 21 is fixed on the stepped part 11b of main body 11.Pressure spring 22 is installed between this spring bracket 21 and the plunger 17, applies elastic force and makes valve body 18 14a of portion that lifts off a seat.Be installed in the solenoid unit 23 on the main body 11, overcome the elastic force of pressure spring 22, valve body 18 is urged to seat portion 14a side.
In addition, the main body 11 of present embodiment forms by the circular corrosion resistant plate press molding that will have specified diameter and thickness, becomes lip part 21a and its stepped part 11b state of contact of spring bracket 21.Have by making the spring bracket 21 that discoideus stainless steel etc. forms: the lip part 21a of above-mentioned ring-type; With side-prominent to seat portion 14a from this lip part 21a, the guide portion 21b of the tubular that moves of guiding valve body 18.Utilization makes the inside all side depressions of the part near stepped part 11b of large-diameter portion 11c and the caulking part 24 of formation, and the lip part 21a of spring bracket 21 becomes the state that is pressed against on the stepped part 11b, and is fixing integratedly with respect to main body 11.The instability action of the valve body 18 that the guide portion 21b of spring bracket 21 can produce in the time of can suppressing mobile, thus reach stable moving.In addition, shown in Figure 1 opening under the valve state, by surrounding the front end (outer peripheral portion of port plate 36 described later) of valve body 18, can suppress by the mobile vibration that causes of the refrigeration agent between first joint 13 and second joint 16 and with its noise that produces together.And the direction to seat portion 14a moves owing to flowing of refrigeration agent also can to suppress valve body 18, thereby makes the rough sledding of the flowing instability of refrigeration agent.
In addition, also can utilize press molding, form main body 11 by Stainless Steel Tube with predetermined thickness and diameter.Under the situation on the large-diameter portion 11c that spring bracket 21 is fixed on main body 11, can the above-mentioned riveted joint of unfavorable usefulness, wait and engage and utilize spot welding or first joint 13, valve base part 14 and second joint 16 to carry out furnace brazing together.
But, be not to utilize two pairs of locator protrusionss, 26,27 staple joint conjugate foramens 12, and, equally spaced form locator protrusions 26,27 along the circumferencial direction of first joint.As long as this locator protrusions 26,27 can be stipulated the posture of first joint 13 with respect to the connector engages hole 12 of large-diameter portion 11c, so it also is effective forming a plurality of locator protrusionss of arranging along the profile in connector engages hole 12 on first joint 13.In this case, can be easily and promptly carry out position alignment operation.
Valve base part 14 by making processing such as discoideus stainless steel engages with the large-diameter portion 11c of main body 11 by soldering portion 28, makes the length-wise axis shape in line of seat portion 14a and joint holding part 14b and main body 11.In addition, second joint 16 engages with the joint holding part 14b of valve base part 14 by soldering portion 29, also makes the length-wise axis shape in line of its length-wise axis and main body 11.In the present embodiment, on the open end 15 of large-diameter portion 11c, be formed with limiting valve base member 14 with respect to the insertion position of large-diameter portion 11c from the inner circle wall of large-diameter portion 11c side-prominent a plurality of caulking parts 30 in diametric(al).Thus, can carry out the location of valve base part 14 easily with respect to the opening end of the large-diameter portion 11c of main body 11.
Can certainly utilize other parts beyond above-mentioned locator protrusions 26,27 and the caulking part 30 to limit first joint 13 and valve base part 14 relative position with respect to main body 11.
Large-diameter portion 11c is clipped between the minor diameter 11a and second joint 16, minor diameter 11a is positioned at the opposition side of second joint 16, and the stopper (plug) 31 that clogs the opening end of this minor diameter 11a closely embeds the open end side of minor diameter 11a (being upside among Fig. 1).Above-mentioned plunger 17 has the cup-shaped cross-section that the front end of this stopper 31 can insert, and contains the buffer unit 32 of the ring-type that can contact with the front end of stopper 31 in the bottom of this plunger 17.
Along the thickness in the gap 34 of the vibration-direction of valve rod 33, promptly the interval on the surface of the front-end face of valve rod 33 and the Rectifier plate 35 relative with it is set for narrower than the internal diameter of throttling path 39.Equally, along the thickness in the gap 38 of the vibration-direction of valve rod 33, promptly the relative spacing of Rectifier plate 35 and port plate 36 is set for narrower than the internal diameter of throttling path 39 too.Usually, preferably the thickness setting in gap 34,38 is become about 1/4 of narrow internal diameter to throttling path 39.Its reason is because but the variation of the flow path cross sectional area of the fluid between envoy's circulation flow path 39 and the gap 34,38 is the most level and smooth.Two gaps 34,38 that are communicated with the both sides of throttling path 39 are formed on the refrigerant passage with the upwardly extending slit-shaped in side of the orthogonal axe of throttling path 39.Therefore, the noise that produces in throttling path 39 is difficult to propagate laterally from two gaps 34,38, can access good quietness.
In the present embodiment, set for: at the pass valve position shown in Figure 2 that the conical outer circumferential face of the port plate 36 of valve rod 33 front ends contacts with seat portion 14a, the opening end of first port 37 that is communicated with first joint, 13 sides is positioned at the elongated area Z along the length direction of first joint 13 of the refrigerant passage that is made of first joint 13.Therefore, the flow direction that can make between first joint 13 and first port 37 fluid that flows is crooked consumingly and keep roughly straight line shape, can accomplish quietization thus.
Mix in by the refrigeration agent of dehumidifying with throttle valve 10 when fine foreign matters etc. is arranged, such foreign matter can stop up first port 37 of lip part 33a, the throttling path 39 of formation in Rectifier plate 35 or second port 40 of port plate 36.As a result, might be able to not play the normal function of dehumidifying with throttle valve 10.From this viewpoint, in the present embodiment, will dispose one distolateral and be installed on the valve rod 33 in the mode of the outer peripheral portion of surrounding lip part 33a by port plate 36 and the cartridge filter 41 that lip part 33a is riveted into one.The other end of this filter 41 is integrally imbedded in the collar (collar) 42 on the stepped part 33b that closely is embedded in valve rod 33, and first port 37 and first joint 13 become connected state by filter 41.
About structure of filter and installation method, except present embodiment, can select arbitrarily.Equally, the structure of valve body 18 and above-mentioned throttling arrangement also with the present invention's direct relation not, can adopt other arbitrary structures.
The solenoid unit 23 of the valve body 18 of present embodiment uses electromagnetic coil 43.That is, this solenoid unit 23 comprises: accommodate the bobbin 44 of electromagnetic coil 43 and be fixed on the shell 47 of the frame shape on the stopper 31 by bolt 46.Bobbin 44 is embedded in the shell 47 by sealing resin 45 with electromagnetic coil 43.Be drawn out to outside not shown cable from electromagnetic coil 43 through sealing resin 45, be connected with power supply by on/off (On/Off) circuit.Bobbin 44 is configured to surround plunger 17 across minor diameter 11a, produces when energising and makes the electromagnetic force of plunger 17 to large-diameter portion 11c side shifting.
As mentioned above, between the lip part 21a of the bottom of plunger 17 and spring bracket 21, be incorporated with the pressure spring 22 of the 14a of portion that applies elastic force so that valve body 18 is lifted off a seat.Therefore, not to electromagnetic coil 43 energising the time, as shown in Figure 1, first joint 13 and second joint 16 are not that the valve chamber 20 by valve body 18 but by main body 11 becomes connected state.
This dehumidifying can be made as described below with throttle valve 10.At first, by the corrosion resistant plate that is die-cut into the circle with suitable diameter, the press molding cylindrical main body 11 several times, punch out connector engages hole 12 on the large-diameter portion 11c of this main body 11.Valve base part 14 by making discoideus sheet material press molding ring-type punches out seat portion 14a simultaneously.Equally, by making discoideus sheet material, obtain spring bracket 21 by press molding.
Then, make lip part 21a become the place ahead, insert spring bracket 21 from the open end side of the large-diameter portion 11c of main body 11,21a is positioned on the stepped part 11b with this lip part.Under this state, make the inside all side depressions of the part near stepped part 11b of large-diameter portion 11c, form caulking part 24, the stepped part 11b with main body 11 is fixed as one with spring bracket 21.At this moment, also form caulking part 30 simultaneously.
On the other hand, prepare first and second joints 13,16.Two pairs of locator protrusionss of press molding 26,27 in advance on first joint 13.
Then, first joint 13 is inserted in the connector engages hole 12, valve base part 14 is inserted in the open end 15 of large-diameter portion 11c, and second joint 16 that will make tubular again inserts among the joint holding part 14b, embeds the solid-state braze of doing circlewise in these anastomosis parts.Then, under the state that the valve base part 14 and first and second joints 13,16 are located with respect to main body 11 respectively, they are carried out furnace brazing together, make main body 11 and first joint 13, main body 11 and valve base part 14, valve base part 14 and second joint 16 integrated.In this case, do not need to use simultaneously solder flux (flux), so can not carry out reprocessing fully.
At last, insert pressure spring 22, valve body 18 and plunger 17, buffer unit 32, stopper 31 successively,, make itself and minor diameter 11a integrated seal welding between the opening end of minor diameter 11a and the stopper 31 from the open end side of minor diameter 11a.At last, shell 47 is embedded minor diameter 11a, utilize bolt 46 and stopper 31 to be fixed as one, finish the dehumidifying throttle valve 10 of present embodiment thus.
As mentioned above, with spring bracket 21 solderings on the stepped part 11b of main body 11 time, the solid-state braze of ring-type is positioned on the outer peripheral portion of lip part 21a, can carries out furnace brazing with valve base part 14, first and second joints 13,16.
When using this dehumidifying to dehumidify with throttle valve 10, electromagnetic coil 43 conductings, valve body 18 overcomes the elastic force of pressure spring 22, applies power to second joint, 16 sides, and port plate 36 contacts with seat portion 14a, becomes close valve state shown in Figure 2.Accompany therewith, flow into the refrigeration agent of the gas-liquid two-phase in the valve chamber 20 of main bodys 11 from first joint 13, flow into the peripheral part in gaps 34 from first port 37, along with from entering the radial direction inboard here, be compressed gradually, big bubble is cut apart, and flows into the throttling path 39 of central authorities.The refrigeration agent that flows in the throttling path 39 further is compressed at this, and the refrigeration agent of regulation flow is directed to second joint, 16 sides.Refrigeration agent from throttling path 39 imports the gap 38 to the radial direction outside, is radial extension.In this case, because the narrow gaps in gap 38, its rapid expansion is suppressed, and expands lentamente, flows out to second joint 16 from second port 40.As a result, can be low-level with the noise suppression that is accompanied by air bubble expansion and produces.
In the stream that gas-liquid two-phase mixes, bubble becomes the state that anchors on the stream inwall, and flow path cross sectional area narrows down in fact, might damage level and smooth the flowing of refrigeration agent.But, in the present embodiment, since towards the opening end of second port 40 of second joint, 16 sides near the inwall of second joint 16 opening, have and make the effect that flows attached to the bubble on the inwall of second joint 16 so flow out to refrigeration agent second joint 16 from second port 40.
In the above-described embodiment, use with throttle valve 10 as the dehumidifying of air bells conditioner, but also can be applied to expansion valve, particularly useful as the throttling arrangement of the refrigerant flow path of freeze cycle.But control valve unit of the present invention also can be applied to the common switch valve that flow path is carried out switch certainly except can being applied to these throttling arrangements.
Claims (8)
1. a control valve unit is characterized in that, comprising:
Have minor diameter and the large-diameter portion that is connected with this minor diameter by stepped part, on this large-diameter portion, be formed with the connector engages hole, make cylindrical main body;
Insert in the described connector engages hole,, make first joint of tubular to engage with this large-diameter portion from the outstanding mode of described large-diameter portion;
Have seat portion and the coupled joint holding part of making tubular, outer peripheral portion engages with the open end of described large-diameter portion, makes the length-wise axis valve base part of the ring-type of shape in line of described seat portion and described joint holding part and described main body;
Engage under chimeric state with described joint holding part, make second joint of tubular;
Have be free to slide the plunger chimeric with described minor diameter, outstanding in the mode relative from this plunger with described seat portion, can carry out the valve body of switch to described seat portion; With
This valve body is carried out the valve body driving mechanism of switch drive.
2. control valve unit as claimed in claim 1 is characterized in that:
Described valve body driving mechanism has: the spring bracket that is fixed on the ring-type on the described stepped part; And be installed between this spring bracket and the described plunger, so that described valve body leaves the pressure spring that the mode of described seat portion applies elastic force.
3. control valve unit as claimed in claim 2 is characterized in that:
Described large-diameter portion also has and is used for described spring bracket is fixed on caulking part on the described main body.
4. control valve unit as claimed in claim 1 is characterized in that:
Described first joint has from its outer circumferential face bulging, the positioning means that can end with the open end edge card in described connector engages hole.
5. control valve unit as claimed in claim 1 is characterized in that:
Described large-diameter portion also has at its open end from inner peripheral surface bulging, the position registration mechanism that can end with the outer peripheral portion card of described seat portion.
6. control valve unit as claimed in claim 1 is characterized in that:
Described main body and described first joint, described main body and described valve base part, described valve base part and described second joint engage together by furnace brazing respectively.
7. manufacture method of making each described control valve unit in the claim 1～6 is characterized in that having:
The operation of press molding cylindrical main body;
On the large-diameter portion of described main body, form the operation in connector engages hole;
The operation of the valve base part of press molding ring-type;
First joint of making tubular is inserted in the described connector engages hole, described valve base part is inserted in the open end of described large-diameter portion, second joint that to make tubular again inserts in the described joint holding part, with described valve base part and described first and second joints respectively under the state with respect to described main body location, the operation of together they being carried out furnace brazing; With
Valve body is inserted operation in the main body from described minor diameter side.
8. the manufacture method of control valve unit as claimed in claim 7 is characterized in that, also has:
Before furnace brazing, the spring bracket of ring-type is inserted in the stepped part of described main body, be fixed in operation on the main body by riveting described large-diameter portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-241511 | 2005-08-23 | ||
| JP2005241511 | 2005-08-23 | ||
| JP2005241511A JP4608395B2 (en) | 2005-08-23 | 2005-08-23 | Valve device and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1920354A true CN1920354A (en) | 2007-02-28 |
| CN1920354B CN1920354B (en) | 2011-02-16 |
Family
ID=37778142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101150694A Active CN1920354B (en) | 2005-08-23 | 2006-08-23 | Valve device and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4608395B2 (en) |
| CN (1) | CN1920354B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102758936A (en) * | 2012-02-08 | 2012-10-31 | 浙江三花制冷集团有限公司 | Pilot valve of four-way reversing valve and machining method of pilot valve |
| CN107461504A (en) * | 2016-06-03 | 2017-12-12 | 弗路徳自动控制系统有限公司 | Valve and the method for forming the movable valve sub-assemblies for control valve for fluids |
| CN108006299A (en) * | 2016-10-28 | 2018-05-08 | 株式会社不二工机 | Motor-driven valve and its assemble method |
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| JP5442213B2 (en) * | 2008-04-17 | 2014-03-12 | 株式会社不二工機 | 3-way selector valve |
| JP5354387B2 (en) * | 2010-04-22 | 2013-11-27 | イーグル工業株式会社 | solenoid valve |
| CN104136930B (en) | 2011-12-26 | 2017-04-26 | 国立大学法人东京大学 | Measuring method and measuring equipment |
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| JP6976582B2 (en) * | 2019-03-13 | 2021-12-08 | 株式会社不二工機 | solenoid valve |
| JP7493257B2 (en) | 2022-08-24 | 2024-05-31 | 株式会社不二工機 | Motor-operated valve |
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|---|---|---|---|---|
| JPS6280468A (en) * | 1985-10-02 | 1987-04-13 | 株式会社日立製作所 | Expansion valve for refrigeration cycle |
| JP3817392B2 (en) * | 1999-08-03 | 2006-09-06 | 株式会社日立製作所 | Air conditioner |
| JP4205867B2 (en) * | 2001-02-28 | 2009-01-07 | 株式会社不二工機 | solenoid valve |
| JP4456799B2 (en) * | 2001-11-01 | 2010-04-28 | 株式会社不二工機 | solenoid valve |
| JP2004162567A (en) * | 2002-11-12 | 2004-06-10 | Fuji Koki Corp | Control valve for variable displacement compressor |
| CN2619100Y (en) * | 2003-05-12 | 2004-06-02 | 浙江三花股份有限公司 | Normally open DC electromagnetic valve |
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2005
- 2005-08-23 JP JP2005241511A patent/JP4608395B2/en active Active
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2006
- 2006-08-23 CN CN2006101150694A patent/CN1920354B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758936A (en) * | 2012-02-08 | 2012-10-31 | 浙江三花制冷集团有限公司 | Pilot valve of four-way reversing valve and machining method of pilot valve |
| CN107461504A (en) * | 2016-06-03 | 2017-12-12 | 弗路徳自动控制系统有限公司 | Valve and the method for forming the movable valve sub-assemblies for control valve for fluids |
| CN107461504B (en) * | 2016-06-03 | 2021-01-19 | Fas医学有限公司 | Valve and method of forming a movable valve subassembly for a fluid control valve |
| CN108006299A (en) * | 2016-10-28 | 2018-05-08 | 株式会社不二工机 | Motor-driven valve and its assemble method |
| CN108006299B (en) * | 2016-10-28 | 2021-03-12 | 株式会社不二工机 | Assembling method of electric valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4608395B2 (en) | 2011-01-12 |
| CN1920354B (en) | 2011-02-16 |
| JP2007056954A (en) | 2007-03-08 |
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