CN101363554B - Normal-open electromagnetic valve and air conditioner - Google Patents
Normal-open electromagnetic valve and air conditioner Download PDFInfo
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- CN101363554B CN101363554B CN200810145097XA CN200810145097A CN101363554B CN 101363554 B CN101363554 B CN 101363554B CN 200810145097X A CN200810145097X A CN 200810145097XA CN 200810145097 A CN200810145097 A CN 200810145097A CN 101363554 B CN101363554 B CN 101363554B
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- 229910000679 solder Inorganic materials 0.000 claims abstract description 26
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- 238000003466 welding Methods 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 22
- 229910052802 copper Inorganic materials 0.000 claims description 22
- 239000010949 copper Substances 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 230000000630 rising effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 230000011514 reflex Effects 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 10
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Abstract
This invention provides a normally open solenoid valve without using welding fluid for soldering and air conditioner using this solenoid valve, comprising a small diameter part (12a) having allocated plunger compartment (11) and being composed of stainless steel made stepped tubes, a large diameter part (13) having allocated valve chambers (13), and plunger piston tube on stepped part (12c) as the main body. Stainless steel made spring supporting and wrapping assembly is located and fixed by means of fitting with stepped surface inside tube of the stepped part via soldering process in atmosphere oven without using welding fluid, and used for fixing part of plunger supporting spring (16) and wrapped around fore end of valve core (21) on valve opening position. The spring supporting and wrapping assembly is disposed with a holding component (22c2) for holding ring-shaped solder material on the soldering part until soldering process without welding fluid (R).
Description
Technical field
The present invention relates to normal-open electromagnetic valve and air conditioner, the plunger that relates in particular to the spool that is configured in the valve chamber and o device links, and utilizes the moving of axial direction of plunger and the normal-open electromagnetic valve and the air conditioner of switching valve port.
Background technique
In this solenoid valve, spool draws back from valve port seat portion on every side when opening the valve state, is in forward end is positioned at the valve chamber of valve casing with non-matted state state.Therefore, spool is subjected to the influence of the fluid stream that flows at valve chamber when opening the valve state, if having turbulent flow on fluid stream, is then helped thereupon and shakes and resonate, has the danger of noise such as generation valve vibration.In the air conditioner of using this solenoid valve, with regard to the revolution of the compressor when beginning with regard to cold air operation, in order to carry out blowing out of cold wind as early as possible, reach maximum number of revolutions ground after the running beginning rapidly and carry out speed controlling, thereby become unsettled refrigeration agent stream mode easily, this transitional flowing state from, the solenoid valve of opening the valve state is easy to generate the valve vibration.Especially as spool by the spring force of spring on push away and be arranged in out the solenoid valve of the open type of valve position, when opening the valve state, spool is only supported by spring, therefore, spool is quality, is that the vibration system that does not have decay of spring constant is set up with spring, thereby spool is subjected to the influence of fluid stream and resonance easily.
So, for the fluid stream (turbulent flow) in the valve chamber is not directly contacted with spool, reduce the caused power of shaking that helps of fluid stream that acts on the spool, and the forward end periphery of the spool when the valve state is arranged out by technology that collar tube sub-assembly surrounded (for example, with reference to patent documentation 1: TOHKEMY 2004-239358 communique).
In addition, in this solenoid valve, valve casing is a brass ware, the valve chamber of delimiting the first gateway port that always directly is communicated with valve chamber on valve casing, always directly being communicated with the first gateway port, the second gateway port that is communicated with valve chamber by means of valve port delimited seat portion on every side at the opening end of valve chamber one side of valve port.On first and second gateway port, be connected with first and second copper adaptor tube that comes sealing engagement by soldering respectively.In addition, on valve casing, erect setting and be fixed with stainless steel plunger tube cylindraceous by soldering, this plunger tube inside delimit with valve chamber in the plunger of the o device that links of spool along the chimeric movably plunger compartment of axial direction, and at the coil portion of outside Motionless electromagnetic spiral piping arrangement.Hold in plunger tube with the valve casing is benchmark to plunger always to the piston spring (opening valve spring) that is made of compression helical spring of valve opening position reinforcing, by on electromagnetic coil portion not the energising non-energising the time utilize the spring force of piston spring that spool is driven to valve opening position with plunger, during energising, plunger overcomes the spring force of piston spring and by magnetic attachment, thereby spool is driven to closing the valve direction, constitute normal-open electromagnetic valve thus.
Yet, in this normal-open electromagnetic valve, owing to need to use solder flux for first and second copper adaptor tube of soldering on brass system valve casing and stainless steel plunger tube, therefore, not only spend the administration cost of operating environment, and because of using solder flux to have the possibility of bringing bad influence to physical environment in a large number.In addition, carry out pickling processes as the reprocessing of removing solder flux, scale removal, thereby need the solvent of operation place and a large amount of processing water, fuel and acidity, alkalescence, and since for operating environment management and away from the place carry out, thereby need the reservation place that keeps in advance as intermediate member (semi-finished product), thereby become the obstacle of boosting productivity.And then, because according to processing method, the surface roughness variation of parts sometimes, or can not remove foreign matter fully, therefore, the danger that exists the performance of giving solenoid valve to bring bad influence (reliability).Like this, in the normal-open electromagnetic valve that constitutes using brass system valve casing, also become the reason that parts number of packages, process number and weight increase.
In addition, as having eliminated necessity of in soldering, using solder flux, by using punch components to realize the solenoid valve of the minimizing of parts numbers of packages, process number and weight, have and make following solenoid valve simultaneously, this solenoid valve is provided with: form tubular stainless steel system valve casing; Be installed in first joint and second joint on this valve casing; Be arranged on the plunger of above-mentioned valve casing inside; Be arranged on the spool of this plunger inside; Relative with above-mentioned plunger and in be contained in the above-mentioned valve casing and be welded on the aspirator of valve casing upper end portion; Be arranged at the piston spring between above-mentioned spool and the above-mentioned aspirator, above-mentioned piston spring with above-mentioned spool to the valve seat direction reinforcing of the mounting end of the relative valve casing that is formed at above-mentioned first joint (for example, with reference to patent documentation 2: TOHKEMY 2002-139169 communique).
The solenoid valve that above-mentioned patent documentation 2 is put down in writing, since be by on electromagnetic coil portion not non-when energising spool of energising utilize the spring force of piston spring to drive to closing the valve direction with plunger, and when energising plunger overcome the spring force of piston spring and by magnetic attachment, thereby with the normal close type of spool to the valve opening position driving, thereby might be subjected to that fluid stream influences open the valve state time, spool is utilized compressed piston spring to be pushed attracting by magnetic attraction and keeps in the maintained plunger, therefore, can do not helped and shake, the collar tube sub-assembly of the forward end periphery of surrounding the spool when opening the valve state needn't be set by the turbulent flow that fluid flows.
Therefore, with regard to the solenoid valve that patent documentation 2 is put down in writing, though make the structure that in soldering, to use solder flux, but because the solenoid valve that patent documentation 2 is put down in writing is the normal close type that collar tube sub-assembly needn't be set, therefore, even if the structure of the solenoid valve of patent documentation 2 is used as before relating on the normal-open electromagnetic valve of the present invention, can not be obtained in soldering, needn't using the normal-open electromagnetic valve of solder flux.
Summary of the invention
Therefore, the present invention finishes in view of above-mentioned present situation, its objective is that providing a kind of prevents from the stream of the fluid in the valve chamber (turbulent flow) thereby directly contact with spool to reduce the caused power of shaking that helps of fluid stream that acts on the spool, and eliminated the normal-open electromagnetic valve that in soldering, uses necessity of solder flux.
In order to address the above problem, the normal-open electromagnetic valve that relates to first scheme, link the spool that is disposed in the valve chamber on the plunger of the o device in being disposed at the plunger compartment, by being moved with above-mentioned plunger, above-mentioned spool opens and closes valve port, and will the non-energising of the coil of above-mentioned o device the time utilize piston spring movable end acting force of the spring and be positioned at out the above-mentioned spool of valve position, when above-mentioned coil electricity, overcome the acting force of the spring of above-mentioned piston spring and the above-mentioned plunger of magnetic attachment and drive to closing valve position, it is characterized in that, possess plunger tube that the band ladder pipe by stainless steel the constitutes valve body of holding concurrently, this plunger tube valve body of holding concurrently has: the minor diameter part of delimiting above-mentioned plunger compartment; Delimit the large-diameter portion of above-mentioned valve chamber; And the end difference that links above-mentioned minor diameter part and above-mentioned large-diameter portion, the spring of stainless steel support hold concurrently around parts with the pipe of above-mentioned end difference in the ladder surface mode of coincideing locate and fix by the fluxless soldering in atmosphere furnace, this spring supports to hold concurrently and supports the fixed end of above-mentioned piston spring and the front end periphery of surrounding the above-mentioned spool that is positioned at out valve position around the parts spring, the first copper adaptor tube come sealing engagement by the fluxless soldering in atmosphere furnace and be connected with the wall portion that is arranged in above-mentioned large-diameter portion on first port that always is communicated with of above-mentioned valve chamber, the stainless steel member made is sealing engagement and be fixed on the opening portion of above-mentioned large-diameter portion by the fluxless soldering in atmosphere furnace, this parts of stainless steel has second port, and the seat portion that around the opening end of the valve chamber side that is arranged at the above-mentioned valve port between this second port and the above-mentioned valve chamber, forms, the second copper adaptor tube is sealing engagement and be connected above-mentioned second port by the fluxless soldering in atmosphere furnace, supports to hold concurrently being provided with till carrying out above-mentioned fluxless soldering the retaining member that the ring-type solder is remained in the soldering portion on the parts at above-mentioned spring.
The invention of putting down in writing according to first scheme, owing to adopt and have the minor diameter part of delimiting the plunger compartment, delimit the large-diameter portion of valve chamber, and link the end difference of minor diameter part and large-diameter portion and by the plunger tube that the band ladder pipe of stainless steel the constitutes valve body of holding concurrently, the spring of stainless steel support hold concurrently around parts by the fluxless soldering in atmosphere furnace with the pipe of end difference in the ladder surface mode of coincideing locate and fixing, this spring supports to hold concurrently and supports the fixed end of above-mentioned piston spring and the front end periphery of surrounding the above-mentioned spool that is positioned at out valve position around the parts spring, utilization is arranged on spring and supports the retaining member of holding concurrently on parts, till carrying out the fluxless soldering, make the ring-type solder remain on soldering portion, therefore, can carry out spring by the fluxless soldering in atmosphere furnace supports double around the soldering of parts for ladder surface in the pipe of end difference, and, spring support to be held concurrently around the fluxless soldering in atmosphere furnace of parts for ladder surface in the pipe of end difference, can with the copper adaptor tube for first port, the parts of stainless steel with second port and valve port and seat portion are for the opening portion of large-diameter portion, and second the copper adaptor tube carry out together for the fluxless soldering in atmosphere furnace of second port.
The normal-open electromagnetic valve that relates to alternative plan is on the basis of the normal-open electromagnetic valve that first scheme is put down in writing, it is characterized in that, above-mentioned spring supports to hold concurrently possesses flange around parts, and this flange is provided with: have diameter arc edge and the equidistant par that dispose littler than the internal diameter of above-mentioned large-diameter portion; And the rising portions that is disposed at two ligules between the adjacent par, in with above-mentioned par and above-mentioned pipe ladder surface coincide and by welding temporary fixed the time, the rising portions of above-mentioned ligule will remain on the junction portion of ladder surface and above-mentioned large-diameter portion inner peripheral surface in the above-mentioned pipe along the ring-type solder of the arc edge configuration of above-mentioned par.
The invention of putting down in writing according to alternative plan, owing to support the double rising portions that is provided with par and ligule on the flange that parts possessed that centers at spring, the par has diameter than the little arc edge of the internal diameter of large-diameter portion and with equidistant configuration, the rising portions of ligule is disposed between two adjacent pars, in with par and pipe ladder surface coincide and by welding temporary fixed the time, to remain on the junction portion of ladder surface and large-diameter portion inner peripheral surface in the pipe along the ring-type solder of the arc edge of par configuration, therefore, spring support to hold concurrently around parts for the positioning and fixing of ladder surface in the pipe by with pipe in utilize under the state that coincide of ladder surface along the fluxless soldering of the arc edge of par and carry out.
Relate to third party's case air conditioner it is characterized in that possessing: compressor; Outdoor heat converter; First indoor heat converter; Second indoor heat converter; Annular connects the coolant channel of these parts; Be arranged at the expansion valve on the coolant channel between above-mentioned outdoor heat converter and above-mentioned first indoor heat converter; Be connected scheme 1 or 2 described normal-open electromagnetic valves between above-mentioned first indoor heat converter and above-mentioned second indoor heat converter; And be at this normal-open electromagnetic valve and be communicated with the upstream side of above-mentioned valve port and the throttling passage in downstream side when closing the valve state.
According to the invention that third party's case is put down in writing, utilize normal-open electromagnetic valve to close valve, throttling passage is brought into play throttling action between first indoor heat converter and second indoor heat converter, and action dehumidifies.
Effect of the present invention is as follows.
The invention of putting down in writing according to first scheme, because the fluxless soldering that the spring bearing of the stainless steel of the front end periphery of the spool that the fixed end of spring support piston spring and encirclement are arranged in out valve position is held concurrently and carried out for ladder surface in the pipe of end difference around parts in atmosphere furnace, can with the copper adaptor tube for first port, the parts of stainless steel with second port and valve port and seat portion are for the opening portion of large-diameter portion, and second the copper adaptor tube carry out together for the fluxless soldering in atmosphere furnace of second port, and the part that soldering is crossed once can not enter in the soldering atmosphere once more, therefore, all joints by soldering maintain a good state, thereby can provide a kind of prevent the stream of the fluid in the valve chamber (turbulent flow) thus directly contact reduction acts on and helps the power of shaking by what fluid stream caused on the spool with spool, and eliminated the normal-open electromagnetic valve of necessity of use solder flux in soldering.
The invention of putting down in writing according to alternative plan, owing to will remain on the junction portion of ladder surface and large-diameter portion inner peripheral surface in the pipe along the ring-type solder of the arc edge of par configuration, thereby spring support to hold concurrently around parts for the positioning and fixing of ladder surface in the pipe by with pipe in utilize under the state that coincide of ladder surface along the fluxless soldering of the arc edge of par and carry out, thereby spring supports to hold concurrently and can carry out accurately for the positioning and fixing of ladder surface in the pipe around parts.
The invention of being put down in writing according to third party's case, being provided with the double normal-open electromagnetic valve around parts of spring support by the fluxless soldering in atmosphere furnace is arranged in the indoor set of air conditioner, thereby can be provided in cold air pattern that normal-open electromagnetic valve is in out the valve state, the heating installation pattern, can not produce the air conditioner of ear-piercing valve vibration.
Description of drawings
Fig. 1 is the sectional view of opening the valve state that expression relates to a mode of execution of solenoid valve of the present invention.
Fig. 2 is the sectional view that closes the valve state that expression relates to a mode of execution of solenoid valve of the present invention.
Fig. 3 is the amplification view of major component of the solenoid valve of a mode of execution.
Fig. 4 is that the employed spring of the solenoid valve of a mode of execution supports the stereogram of holding concurrently around parts.
Fig. 5 is that the employed spring of the solenoid valve of a mode of execution supports the plan view of holding concurrently around parts.
Fig. 6 is that the hold concurrently large-diameter portion of valve body and spring of expression plunger tube that the hatching X-X position in Fig. 4 is cut open supports the sectional view of holding concurrently around the relation of parts.
Fig. 7 is that the hold concurrently large-diameter portion of valve body and spring of expression plunger tube that the hatching Y-Y position in Fig. 4 is cut open supports the sectional view of holding concurrently around the relation of parts.
Fig. 8 is half-finished sectional view that expression is assembled by assembling procedure.
Fig. 9 is illustrated in to be pressed on the semi-finished product of Fig. 8 to have fixed half-finished sectional view that flanged pin has end cartridge unit.
Figure 10 is illustrated in the half-finished sectional view that has assembled first and second copper adaptor tube on the semi-finished product of Fig. 9.
Figure 11 is the skeleton diagram that expression is equipped with the air conditioner of the normal-open electromagnetic valve that relates to one embodiment of the present invention.
Among the figure:
The 10-normal-open electromagnetic valve, 11-plunger compartment, the 12-plunger tube valve body of holding concurrently, the 12a-minor diameter part, 12b-large-diameter portion, 12c-end difference, ladder surface in the 12d-pipe, 13-valve chamber, 14-first port (the first gateway port), the parts of the stainless steel of 15-(flanged pin has end cartridge unit), 16-second port (the second gateway port), 17-valve port, the 19-first copper adaptor tube, the 20-second copper adaptor tube, 21-spool, the 22-spring supports holds concurrently around parts 22C-flange, 22C1-par, the 22C11-arc edge, 22C2-retaining member (ligule rising portions), 25-ring-type solder, the R-soldering, 40-o device, 41-plunger, the 45-coil, the 46-piston spring, 100-compressor, 101-outdoor heat converter, 102-first indoor heat converter, 103-second indoor heat converter, 104-expansion valve, 115-four-way valve.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.Fig. 1 and Fig. 2 are the sectional views that expression relates to a mode of execution of solenoid valve of the present invention.In the figure, solenoid valve 10 possesses plunger tube that the band ladder pipe by stainless steel the constitutes valve body 12 of holding concurrently, and this plunger tube valve body 12 of holding concurrently has: the minor diameter part 12a that delimit plunger compartment 11; Delimit the large-diameter portion 12b of valve chamber 13; And the end difference 12c that links minor diameter part 12a and large-diameter portion 12b.Be equipped with the first gateway port one 4 that always is communicated with valve chamber 13 in its ancient piece of jade, round, flat and with a hole in its centre portion on plunger tube is held concurrently the large-diameter portion 12b of valve master-body 12, the flanged pin that is provided with stainless steel at this opening portion has end cartridge unit 15.
Flanged pin has end cartridge unit 15 to have: inner peripheral surface delimited the 15a of tube portion of the second gateway port one 6; Delimitation has the bottom 15b that is arranged on the valve port 17 between the valve chamber 13 and the second gateway port one 6; And be pressed under the state of opening portion inner peripheral surface of large-diameter portion 12b the lip part 15c of sealing engagement at peripheral edge portion by the fluxless soldering R in atmosphere furnace.Around the opening end of valve chamber 13 sides of valve port 17, delimit seat portion 18 arranged.
The first copper adaptor tube 19 inserts in the first gateway port one 4, support under the state that contacts around the outer circumferential face of the cylindrical part 22A of parts 22 and locate of holding concurrently at its insertion end and spring described later, come sealing engagement to connect by in atmosphere furnace, carrying out fluxless soldering R.In the second gateway port one 6, the insertion second copper adaptor tube 20 in forming the 15a of tube portion of this port contacts with bottom 15b and under the state of locating, comes sealing engagement to connect by the fluxless soldering R in atmosphere furnace in its insertion end.
In valve chamber 13, be provided with spool 21 movably along the hold concurrently axial direction of valve body 12 of plunger tube.Spool 21 can former end outer circumferential face 21A be seated in the seat portion 18 of delimiting on around the opening end of valve chamber 13 sides of valve port 17 and the closing valve position (position of Fig. 2) and lift off a seat portion 18 and the opening between the valve position (position of Fig. 1) of connection of establishing valve port 17 moved of close port 17.
Plunger tube hold concurrently valve body 12 minor diameter part 12a inside and outside, dispose the component parts of o device 40.O device 40 is the devices that do not have the type of aspirator, comprising: be fitted to the cup-shaped plunger 41 of magnetic material system of delimiting the plunger compartment 11 in plunger tube is held concurrently the minor diameter part 12a of valve body 12 movably along the hold concurrently axial direction of valve body 12 of plunger tube; Be fixed on the connector parts 42 of magnetic material system of the open front portion of minor diameter part 12a airtightly by welding; Utilize the shell 44 of the コ font magnetic material system of bolt 43 and 42 bindings of connector parts in the outside of minor diameter part 12a; By shell 44 support of surrounding of this コ font, and be fixed on the electromagnetic coil portion 45 of the outside of minor diameter part 12a by the binding of 44 pairs of connector parts 42 of shell; And to connector parts 42 1 sides the piston spring (opening valve spring) 46 that constitutes by compression helical spring of valve opening position reinforcing with plunger 41.
The interior valve chamber 13 of plunger compartment 11 in the minor diameter part 12a and large-diameter portion 12b is communicated with, across plunger compartment 11 and valve chamber 13 and the spool 21 that exists is riveted the bottom that is combined in plunger 41 by top valve stem 21B plunger compartment 11 in, thereby link with plunger 41 being integral, and move at the hold concurrently axial direction of valve body 12 of plunger tube integratedly with plunger 41.
Promptly, o device 40 is made following open type, promptly, the spring force that will the time utilize piston spring 46 as shown in Figure 1 in non-energising leaves the driven spool 21 of valve position to what draw back from seat portion 18, when energising, overcome the spring force of piston spring 46 and magnetic attachment plunger 41 as shown in Figure 2 and drive to the valve position that closes that is seated in seat portion 18.
The spring that is fixed with stainless steel by the fluxless soldering R in atmosphere furnace on plunger tube is held concurrently valve body 12 support to be held concurrently around parts 22, this spring support hold concurrently around parts 22 with the pipe of the end difference 12c that links minor diameter part 12a and large-diameter portion 12b in the ladder surface 12d mode positioning and fixing of coincideing and the double as spring supports and spool leads.Spring supports to hold concurrently and forms by drawing processing around parts 22, amplify expression respectively as the partial sectional view of Fig. 3, the stereogram of Fig. 4, the plan view of Fig. 5, have: reflex part 22B that cylindrical part 22A, the inner peripheral surface from the end of cylindrical part 22A along cylindrical part 22A turn back and the flange 22C that is integrally formed in the other end.
Spring support to be held concurrently under the state of parts 22 ladder surface 12d flange 22C is temporarily fixed at the pipe of end difference 12c with for example spot welding in, fix by in atmosphere furnace, carrying out fluxless soldering R, under this state, cylindrical part 22A and reflex part 22B are positioned at valve chamber 13, surround the whole periphery of the front end 21C that is in the spool of opening the valve state 21 shown in Figure 1.
In addition, as shown in Figure 3, support is held concurrently and is centered on regard to the parts 22 with regard to spring, the length setting of cylindrical part 22A is, the front edge of the end of cylindrical part 22A aligns with the front end of the spool 21 of driving valve position, the front end of perhaps being arranged to spool 21 is outstanding a little, thereby prevents to become the runner obstacle in the valve chamber 13.Specifically, the overhang apart from the front edge of cylindrical part 22A of the front end of spool 21 is to the maximum about 1.0～3.0mm, preferably the pettiness amount about 0.5mm.
At spring the coiling end of taking a seat on the front edge 22B1 of the reflex part 22B of parts 22 of support holding concurrently as one of piston spring 46 distolateral fixed end.Be landed in as the coiling end of another distolateral movable end of piston spring 46 on the end difference 41A of bottom outside of cup-shaped plunger 41.By this formation, supporting the double front edge 22B1 that centers on the reflex part 22B of parts 22 with the spring on the ladder surface 12d in the pipe that is fixed on end difference 12c is benchmark, applies the piston spring 46 caused active forces to connector parts 42 1 sides that are made of compression helical spring on plunger 41.
Support double on the flange 22C of parts 22 at spring, more particularly, be provided with: equidistantly dispose diameter than plunger tube hold concurrently little four arc edges (about 30 ° of parts) of internal diameter of large-diameter portion 12b of valve body 12 and the par 22C1 that links with straight line between the arc edge end; And tilt and the rising portions 22C2 of the ligule that erects to the projected direction of cylindrical part 22A from the intermediate portion at the edge of the straight line shape everywhere of this par 22C1.In addition, though arc edge is provided with four in illustrated example, also can be provided with 3,6 or 8, according to its number, the angle of set arc edge also changes.
The hold concurrently large-diameter portion 12b of valve body 12 and spring of the expression plunger tube of cutting open from the position of the plan view of Fig. 5, hatching X-X among Fig. 4 and Y-Y supports and holds concurrently around Fig. 6 of the relation of parts 22 and Fig. 7 as can be known, its free end of ligule rising portions 22C2 22C21 with the discontiguous scope of the inner peripheral surface of large-diameter portion 12b in outstanding from the arc edge 22C11 of par 22C1.In addition, the amount of erecting of the external diameter of the arc edge 22C11 of par 22C1 and ligule rising portions 22C2 is made following size, promptly ladder surface 12d coincide and fixedly the time in the pipe of par 22C1 and end difference 12c, and the ring-type solder 25 before the fusion of disposing along the arc edge 22C11 of par 22C1 remains on the junction portion of the inner peripheral surface of ladder surface and large-diameter portion 12b in the pipe of end difference 12c by ligule rising portions 22C2.
Spool 21 be positioned at valve port 17 directly over, closing under the valve state passage that is communicated with and connects the first gateway port one 4 and the second gateway port one 6 being formed with on the spool 21.The major part of this passage is provided by the hollow opening oral area 21D at front-end face (bottom surface) opening relative with valve port 17.Hollow opening oral area 21D towards valve port 17 openings (lower ending opening), forms the bottom outlet that has of upper end closed with the front-end face of spool 21.
With regard to spool 21, form from the axial direction intermediate portion to the diameter minor diameter part 21E littler of the scope of the binding of plunger 41 distolateral (upper end side) than the external diameter of front end 21C, and and front end 21C between be formed with end difference 21F.On spool 21, be equipped with the radial passage 21G of the outer circumferential face of the upper end closed side of a plurality of connection hollow opening oral area 21D and minor diameter part 21E.Here, above-mentioned passage is made of hollow opening oral area 21D, radial passage 21G, when closing the valve state, form valve chamber 13, be communicated with the communication passage of the first gateway port one 4 and the second gateway port one 6, in other words, form the upstream side that is communicated with valve port 17 and the communication channel in downstream side.
Catch the cylinder filter unit 26 that the porous body of usefulness constitutes in the chimeric installation of the peripheral part of minor diameter part 21E by foreign substance, and clamping remains between the bottom of end difference 21F and plunger 41.Thus, radial passage 21G is communicated with the internal face of cylinder filter unit 26.With regard to cylinder filter unit 26, require to carry out the refinement of the gas grain in foreign substance seizure and the gas-liquid mixture fluid, even if how much stop up mesh, the pressure loss in this filter also is no more than the sieve plate parts 28 caused pressure losses described later.
The following describes action by the solenoid valve 10 of above-mentioned formation.Under the state that o device 40 is not switched on, as shown in Figure 1, spool 21 is lifted with plunger 41 because of the spring force of piston spring 46, spool 21 portion 18 that lifts off a seat, thus obtain the valve state of opening that does not have throttling action in fact of the standard-sized sheet that valve port 17 opens fully.
When this opens the valve state, because the outer periderm spring of the forward end (front end 21C) of spool 21 supports the cylindrical part 22A that holds concurrently around parts 22 and surrounds, therefore, the fluid stream (turbulent flow) that flows to valve port 17, the second gateway port one 6 from the first gateway port one 4 in valve chamber 13 can directly not contact with spool 21.Thus, the power of shaking of helping on the spool 21 that acts on that is caused by fluid stream reduces.Thus, spool 21 is not subject to the influence of the fluid stream in the valve chamber 13, avoids spool 21 resonance, thereby can not produce the valve vibration.
In addition, owing to make spool 21 not be vulnerable to the influence of fluid stream mobile in valve chamber 13 around parts 22 because of spring supports to hold concurrently, therefore, also not being vulnerable to spool 21 increases from driving valve position to the influence of closing the suction phenomenon that the valve direction sucks because of the flow of this fluid stream, and the spring force that needn't increase piston spring 46 waits and increases out valve and keep-up pressure.Thus, can reduce the spring force of piston spring 46, need not increase the spring force that overcomes piston spring 46 and the ampere-turns of the electromagnetic coil of drive plunger, also will not maximize by electromagnetic coil from economic aspect.
If to 40 energisings of o device, then plunger 41 overcomes the spring force of piston spring 46 and is guided to the 44A of hypopleurite portion one side of shell 44 by magnetic, spool 21 is driven to closing the valve direction, and spool 21 is seated in seat portion 18 with front end outer circumferential face 21A as shown in Figure 2.
Close under the valve state at this, the valve chamber 13 and the second gateway port one 6 are communicated with by sieve aperture 28A, the filter unit 29 of cylinder filter unit 26, radial passage 21G, filter unit 27, sieve plate parts 28, be in the occasion that high pressure side and the second gateway port one 6 are in low voltage side at the first gateway port one 4, the order that fluids such as refrigeration agent are pressed the sieve aperture 28A → filter unit 29 of 26 → radial passage, cylinder filter unit 21G → filter unit 27 → sieve plate parts 28 flows.
Flow as mentioned above by fluid, at first, utilize cylinder filter unit 26 cylindric and that surface area is big to carry out the seizure of the fouling products of fluid in flowing, and carry out the refinement of the bubble (gas grain) in the working fluid.And fluid with the mobile inflow filter unit 27 that disperses, and passes through filter unit 27, the sieve aperture 28A of sieve plate parts 28, filter unit 29 by a plurality of radial passage 21G successively.Thus, the sieve aperture 28A by sieve plate parts 28 obtains restriction effect.
In addition, when normal-open electromagnetic valve 10 closes valve, fluid is flowed through from valve chamber 13, and the spring support is double to be centered on the configuration portion of parts 22 and flows into minor diameter part 12a, and after cylinder filter unit 26 flows, become the runner obstacle in order to prevent that spring from supporting to hold concurrently around parts 22, and the front end 21C of spool 21 is moved in valve chamber 13 in reflex part 22B under closing the valve state significantly, thereby between the outer circumferential face of reflex part 22B inner peripheral surface and spool 21, form runner G, the turbulent flow of fluid by the sound takes place in case produce.
The method of the above-mentioned solenoid valve of assembling then, below is described.During assembling, at first after plunger tube is held concurrently the solder of junction portion configuration ring-type of the end difference 12c of valve body 12 and large-diameter portion 12b, spring support to be held concurrently around parts 22 with respect to plunger tube valve body 12 centering of holding concurrently, and the par 22C1 that is mounted to flange 22C is supported by ladder surface 12d institute face in the pipe of end difference 12c.
Then, under the state of clamping end difference 12c and par 22C1, by to switching between spot-wedling electrode, the mating face of end difference 12c and par 22C1 is by spot welding, thereby spring supports to hold concurrently and is temporarily fixed at plunger tube around parts 22 and holds concurrently on the valve body 12.Under this temporary fixed state, as top illustrated, obtain the preceding ring-type solder 25 of fusion disposed and remained on by rising portions 22C2 the junction portion of end difference 12c and large-diameter portion 12b along the arc edge 22C11 of par 22C1 semi-finished product shown in Figure 8 with reference to Fig. 6 and Fig. 7.
Then, on the opening portion inner peripheral surface of half-finished large-diameter portion 12b of Fig. 8, be pressed into the lip part 15c that the fixing belt flange has end cartridge unit 15.Should be pressed into fixing, be connected at the edge of opening of the large-diameter portion 12b of valve body 12 that plunger tube is held concurrently under the state on the peripheral edge of the lip part 15c that lip part 15c is had end cartridge unit 15 as the flanged pin of lower support, have end cartridge unit 15 to push established amount by valve body 12 that plunger tube is held concurrently for flanged pin, the lip part 15c that obtains flanged pin and have end cartridge unit 15 is pressed into the semi-finished product shown in Figure 9 on the assigned position of the opening portion that is fixed on large-diameter portion 12b.
After obtaining semi-finished product shown in Figure 9, then in the first gateway port one 4 of large-diameter portion 12b, insert the first copper adaptor tube 19, inserting it into outer circumferential face that end and spring support to hold concurrently center on the cylindrical part 22A of parts 22 contacts and locatees, and in the 15a of tube portion that forms the second gateway port one 6, insert the second copper adaptor tube 20, insert it into end and contact with bottom 15b and locate, thereby obtain semi-finished product shown in Figure 10.
Under half-finished state of Figure 10, by periphery at the first copper adaptor tube 19 and the second copper adaptor tube 20, respectively along the edge of opening of the first gateway port one 4 and the second gateway port one 6 and the ring-type solder (not shown) before disposing fusion, and the peripheral edge that is pressed into the lip part 15c that is fixed on the opening portion in the inner edge of the opening portion of large-diameter portion 12b and ring-type solder (not shown) before disposing fusion, go up at brazing jig (not shown) afterwards fixing a plurality of and send in the atmosphere furnace and heat, thereby carry out the fluxless soldering.Brazing jig tilts to keep the semi-finished product of a plurality of Figure 10 in case the preceding ring-type solder of fusion that is configured on the assigned position produces position deflection.
Then, from the opening of minor diameter part 12a is held concurrently the plunger tube of the piston spring 46 first copper adaptor tube 19 that has been inserted into soldering and the second copper adaptor tube 20 valve body 12.Then, insert filter unit 27, sieve plate parts 28, filter unit 29 the hollow opening oral area 21D successively and utilize the riveted joint of front end and fix from the opening of minor diameter part 12a, and be inserted in the chimeric spool 21 that cylinder filter unit 26 is installed of the peripheral part of minor diameter part 21E and with these spool 21 riveted joint be combined intos be the plunger 41 of one.Then, inserting connector parts 42 contacts with the edge of opening of minor diameter part 12a until its end difference 42a.Then, the opening portion by sealing engagement minor diameter part 12a such as welding and be entrenched in the periphery of the connector parts 42 of opening portion.In addition, the welding of these parts except using the TIG welding as argon or plasma and so on, also can be carried out with common welding manners such as laser bonding or electron beam weldings.
The sealing engagement that is entrenched in the connector parts 42 on the opening portion of minor diameter part 12a is carried out with compressive state, obtain desirable acting force of the spring so that utilize piston spring 46, the coiling end of these piston spring 46 its fixed ends is seated in spring and support holds concurrently on the end difference 41A of the front edge 22B1 of the reflex part 22B of parts 22 and the bottom outside that movable end is seated in plunger 41.At last, as mentioned above, utilize bolt 43 to be attached at connector parts 42 by the shell 44 that will surround the electromagnetic coil portion 45 that supports o device 40, thereby finish the assembling of normal-open electromagnetic valve.
The normal-open electromagnetic valve that relates to mode of execution according to above-mentioned can obtain following effect:
(1) by with the brass member made of existing normal-open electromagnetic valve keep airtight and runner guarantee replace with parts of stainless steel in such function, thereby needn't use solder flux for soldering, and, owing to use punch components, and can realize the minimizing of parts number of packages, process number and weight.
(2), thereby can realize the reduction of fabricating cost because can with valve body and plunger tube is integrated and form with punch process.
(3) owing to do not use parts that solder flux just can carry out stainless steel each other and the soldering of the valve body of stainless steel and copper joint, thereby reduction causes the possibility of bad influence to physical environment, also can reduce the administration cost of operating environment.
(not the using solder flux of 4 normal-open electromagnetic valves and the soldering carried out can once be carried out, thereby can realize the raising of productivity, the purification of operating environment.
Figure 11 represents the air conditioner of the normal-open electromagnetic valve 10 of above-mentioned band flow controller as the assembling of cyclic drying valve.
This air conditioner has: compressor 100; Outdoor heat converter 101; First indoor heat converter 102; Second indoor heat converter 103; Annular connects the coolant channel 105～113 of these parts; Be arranged at the expansion valve 104 on the coolant channel 107～109 between the outdoor heat converter 101 and first indoor heat converter 102; And the reverse four-way valve 115 of flow direction of the refrigeration agent in the coolant channel 105～113 that annular is connected in order between cold air pattern and heating installation pattern, to switch.
On the coolant channel 110 between first indoor heat converter 102 and second indoor heat converter 1031, be connected with solenoid valve (cyclic drying valve) 10.
Under the cold air pattern, refrigeration agent is along the direction circulation of representing with solid arrow among Figure 11, the state that is in out valve at throttle valve gear 10 obtains the cold air pattern, be under the state that closes valve at solenoid valve 10, this solenoid valve 10 works as throttle valve, obtains circulating cold air drying mode (dehumidifying during refrigeration).
Under the heating installation pattern, refrigeration agent is along circulating in the opposite direction with the side shown in the arrow of Figure 11, and solenoid valve 10 is kept out the valve state usually.
Though solenoid valve 10 is arranged on the indoor set of air conditioner, support to hold concurrently around parts 22 etc. owing to be provided with spring, therefore, be in out in the cold air pattern, heating installation pattern of valve state at solenoid valve 10, can not produce ear-piercing valve vibration.
In addition, in the above-described embodiment, be equipped with the upstream side of connection valve port when closing the valve state and the throttling passage in downstream side in one on the normal-open electromagnetic valve, and when constituting air conditioner, throttling passage need not certain one assembling.
Claims (3)
1. normal-open electromagnetic valve; The plunger of the o device in being disposed at the plunger compartment links the spool that is disposed in the valve chamber; By making above-mentioned spool with the mobile valve port that opens and closes of above-mentioned plunger; And the coil of above-mentioned o device non-when energising utilize plunger spring movable end acting force of the spring and make above-mentioned spool be positioned at out valve position; Thereby the above-mentioned plunger of magnetic attachment overcomes the acting force of the spring of above-mentioned plunger spring and above-mentioned spool is driven to closing valve position when above-mentioned coil electricity; It is characterized in that
Possess plunger tube that the band ladder pipe by stainless steel the constitutes valve body of holding concurrently, this plunger tube valve body of holding concurrently has the minor diameter part of delimiting above-mentioned plunger compartment, the large-diameter portion of delimiting above-mentioned valve chamber and the end difference that links above-mentioned minor diameter part and above-mentioned large-diameter portion,
The spring of stainless steel support hold concurrently around parts with the pipe of above-mentioned end difference in the ladder surface mode of coincideing locate and fix by the fluxless soldering in atmosphere furnace, this spring supports the fixed end of holding concurrently around the above-mentioned piston spring of member supporting, and the front end periphery of surrounding the above-mentioned spool that is positioned at out valve position
The first copper adaptor tube comes sealing engagement by the fluxless soldering in atmosphere furnace and is connected in the wall portion that is arranged in above-mentioned large-diameter portion and first port that always be communicated with above-mentioned valve chamber,
The stainless steel member made is sealing engagement and be fixed on the opening portion of above-mentioned large-diameter portion by the fluxless soldering in atmosphere furnace, the seat portion that this stainless steel member made has second port and forms around the opening end of the valve chamber side that is arranged at the above-mentioned valve port between this second port and the above-mentioned valve chamber
The second copper adaptor tube is sealing engagement and be connected above-mentioned second port by the fluxless soldering in atmosphere furnace,
Support to hold concurrently being provided with till carrying out above-mentioned fluxless soldering the retaining member that the ring-type solder is remained in the soldering portion on the parts at above-mentioned spring, and,
Above-mentioned spring supports to hold concurrently has the reflex part that the inner peripheral surface from an end of the cylindrical part that is formed with flange at the other end along this cylindrical part turns back, the coiling end of the fixed end of the above-mentioned piston spring of taking a seat around parts on the front edge of this reflex part.
2. normal-open electromagnetic valve according to claim 1 is characterized in that,
Above-mentioned spring supports to hold concurrently possesses above-mentioned flange around parts, and this flange is provided with: have diameter than the little arc edge of the internal diameter of above-mentioned large-diameter portion and with the par of equidistant configuration; And the rising portions that is disposed at two ligules between the adjacent par, in with above-mentioned par and above-mentioned pipe ladder surface coincide and by welding temporary fixed the time, the rising portions of above-mentioned ligule will remain on the junction portion of ladder surface and above-mentioned large-diameter portion inner peripheral surface in the above-mentioned pipe along the ring-type solder of the arc edge configuration of above-mentioned par.
3. air conditioner is characterized in that possessing:
Compressor;
Outdoor heat converter;
First indoor heat converter;
Second indoor heat converter;
Annular connects the coolant channel of these parts;
Be arranged at the expansion valve on the coolant channel between above-mentioned outdoor heat converter and above-mentioned first indoor heat converter;
Be connected claim 1 or 2 described normal-open electromagnetic valves between above-mentioned first indoor heat converter and above-mentioned second indoor heat converter; And,
Be at this normal-open electromagnetic valve and be communicated with the upstream side of above-mentioned valve port and the throttling passage in downstream side when closing the valve state.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007207480A JP4456623B2 (en) | 2007-08-09 | 2007-08-09 | Normally open solenoid valve and air conditioner |
| JP2007207480 | 2007-08-09 | ||
| JP2007-207480 | 2007-08-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101363554A CN101363554A (en) | 2009-02-11 |
| CN101363554B true CN101363554B (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810145097XA Active CN101363554B (en) | 2007-08-09 | 2008-08-07 | Normal-open electromagnetic valve and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4456623B2 (en) |
| CN (1) | CN101363554B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679016A (en) * | 2011-03-16 | 2012-09-19 | 浙江三花股份有限公司 | Electromagnetic valve |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988584B (en) * | 2009-07-29 | 2013-05-29 | 浙江三花股份有限公司 | Magnetic valve |
| CN102619991A (en) * | 2011-01-30 | 2012-08-01 | 浙江三花股份有限公司 | Refrigeration system and electromagnetic valve of refrigeration system |
| CN102267014A (en) * | 2011-07-12 | 2011-12-07 | 浙江盾安禾田金属有限公司 | Electronic expansion valve and manufacturing method thereof |
| CN102954272B (en) * | 2011-08-31 | 2014-04-02 | 浙江三花股份有限公司 | Electromagnetic valve |
| JP5933210B2 (en) * | 2011-09-22 | 2016-06-08 | 株式会社不二工機 | Valve device |
| US9810460B2 (en) | 2011-10-19 | 2017-11-07 | Trane International Inc. | Reversible flow electric expansion valve |
| CN102878730B (en) * | 2012-06-29 | 2014-07-30 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN103912708A (en) * | 2013-01-08 | 2014-07-09 | 浙江三花股份有限公司 | Pilot-operated electromagnetic valve and assembling method thereof |
| JP6021671B2 (en) * | 2013-02-06 | 2016-11-09 | 三菱電機株式会社 | Brazed joint and solenoid valve device |
| JP6204819B2 (en) * | 2013-12-20 | 2017-09-27 | 株式会社鷺宮製作所 | Brazed structure |
| JP6349206B2 (en) * | 2014-09-05 | 2018-06-27 | 株式会社フジキン | Valve manufacturing method |
| JP6308685B2 (en) * | 2015-10-20 | 2018-04-11 | 株式会社鷺宮製作所 | Energized closed solenoid valve manufacturing method and energized closed solenoid valve |
| JP6903453B2 (en) * | 2017-03-10 | 2021-07-14 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| CN109764583A (en) * | 2017-11-09 | 2019-05-17 | 丹阳市日晟工业设备有限公司 | A kind of energy-saving electronic expansion valve |
| JP6850750B2 (en) * | 2018-02-26 | 2021-03-31 | 株式会社鷺宮製作所 | solenoid valve |
| CN110500823A (en) * | 2019-08-29 | 2019-11-26 | 盾安汽车热管理科技有限公司 | Combination valve and its control method and refrigeration system |
| JP2022089422A (en) * | 2020-12-04 | 2022-06-16 | 株式会社鷺宮製作所 | Strainer, valve device and refrigeration cycle system |
| CN113187912A (en) * | 2021-04-21 | 2021-07-30 | 浙江三国精密机电有限公司 | Structure of mute gas electromagnetic valve |
-
2007
- 2007-08-09 JP JP2007207480A patent/JP4456623B2/en active Active
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2008
- 2008-08-07 CN CN200810145097XA patent/CN101363554B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679016A (en) * | 2011-03-16 | 2012-09-19 | 浙江三花股份有限公司 | Electromagnetic valve |
| CN102679016B (en) * | 2011-03-16 | 2013-12-18 | 浙江三花股份有限公司 | Electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101363554A (en) | 2009-02-11 |
| JP2009041667A (en) | 2009-02-26 |
| JP4456623B2 (en) | 2010-04-28 |
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