CN101988584A - Magnetic valve - Google Patents
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- CN101988584A CN101988584A CN2009101606696A CN200910160669A CN101988584A CN 101988584 A CN101988584 A CN 101988584A CN 2009101606696 A CN2009101606696 A CN 2009101606696A CN 200910160669 A CN200910160669 A CN 200910160669A CN 101988584 A CN101988584 A CN 101988584A
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Abstract
The invention discloses a magnetic valve, comprising a valve seat, a valve body and a valve rod, wherein the valve seat is formed on the valve body, and the valve rod is controlled to be close to or far away from the valve seat by a magnetic coil; the valve body is provided with an inflow side channel and an outflow side channel; the valve rod is provided with a tapered first porous component and a discoid second porous component, the tapered first porous component is arranged on the periphery of the valve rod and is opposite to the inflow side channel, and the discoid second porous component is held in the valve rod and is opposite to the outflow side channel; the valve rod is internally provided with a channel communicated with the first porous component and a throttling channel communicated with the channel; and the throttling channel faces to the opening of the second porous component, the first porous component made of cemented metal, and the second porous component is a grid made of metal wires. In the invention, the porous component can be assembled on the valve rod of the magnetic valve simply and conveniently, and the flow rate of a refrigerant can be reduced when flowing to the valve rod due to gradual diffusion flow, therefore, the flow state of a gas-liquid refrigerant can be homogenized, thus segmenting bubbles in the refrigerant exactly and further lowering the flow noise of the refrigerant.
Description
Technical field
The present invention relates to a kind of air conditioner solenoid valve.
Background technique
Air conditioner generally flows to counter-rotating by the refrigerant that will flow to outdoor heat converter and indoor heat converter and switches cold air and heating installation.
The refrigerating circulation system of air conditioner is for the operation that dehumidifies, with indoor heat converter be divided into cooling with and heating two classes again, and by the expander that is provided with between the two at it operation that dehumidifies.
When solenoid valve is used as expander, when carrying out throttling, follow its throttling action refrigerant to produce the sound that flows, when sound is flowed in the refrigerant generation, and then form noise.
In order to prevent the generation of the mobile sound of refrigerant, for example open 2003-156269 Patent Document 1 with reference to the spy, this existing known technology is when the refrigerant inflow side of solenoid valve is provided with the 1st parts that make the bubble sectionalization, and the outflow side of refrigerant is provided with the 2nd parts that make the bubble sectionalization.By this structure, owing to the bubble sectionalization that can make in the refrigerant, thus can suppress because of described bubble collapses brokenly the mobile sound of the refrigerant that produces, and then can prevent the generation of noise.
In addition, disclose flat 1-152176 Patent Document 2 with reference to utility model application, the porous body of the throttle orifice of this existing known technology by will being provided with throttling action is arranged on the valve rod, realizes suppressing the flow purpose of sound of refrigerant.
Moreover, for example open 2009-41667 Patent Document 3 with reference to the spy, when the porous body that this existing known technology will be seized the throttle orifice of throttling action on both sides by the arms was arranged on the valve rod, the peripheral part of solenoid valve valve rod also was equiped with as the circular porous body of catching the filtration of foreign substance in the refrigerant.In the foreign substance of this circular porous body in filtering the refrigerant of catching circulation, can make the bubble sectionalization in the circulation refrigerant.
Described existing solenoid valve, outer circumferential face as the porous part of bubble sectionalization is realized the bubble sectionalization by sintering metal and latticed wire netting that employing has taper, does not consider the further reduction refrigerant such shortcoming of sound that flows but exist.
Summary of the invention
Therefore, the present invention is a purpose to address the above problem, a kind of solenoid valve is provided, when can make on the valve rod that is installed in solenoid valve that porous part can be easy, when refrigerant flows to valve rod owing to can diffusion gradually flow, so flow velocity can be extenuated, therefore, the flowing state of gas-liquid 2 phase refrigerants forms homogeneous, thereby the bubble in the refrigerant can be definite is segmented, and then can further reduce the mobile sound of refrigerant.
And even gas-liquid 2 phase refrigerants produce pressure pulsation, the refrigerant by homogeneous be owing to can realize stable coolant throttle effect, so equally also can realize reducing the flow purpose of sound of refrigerant.
For reaching aforementioned purpose, the invention provides a kind of solenoid valve, by electromagnetic coil can make valve rod near or away from the valve seat that is formed on the valve body; Described valve body has inflow side passage and outflow side passage, described valve rod have be installed in described valve rod periphery and with described inflow side passage in opposite directions taper the 1st porous part and remain in the described valve rod and with described outflow side passage discoid the 2nd porous part in opposite directions; The inside of described valve rod is provided with path that is connected with described the 1st porous part and the throttling path that is connected with described path; Described throttling path, by forming in described the 2nd porous part upper shed, described the 1st porous part is formed by sintering metal, and described the 2nd porous part is the grid that wire forms.
According to aforementioned the 1st invention as can be known, the present invention has following effect: described the 1st porous part is the taper that sintering metal forms, the 1st porous part is owing to be installed in the periphery of described valve rod, so when the refrigerant that flows into from the inflow side passage flows to valve rod, spread mobile gradually to the private side of the 1st porous part from the outer circumferential side of taper portion.Thereby can obtain slowing down by the refrigerant that the 1st porous part flows into, the flowing state of the gas-liquid 2 phase refrigerants in the refrigerant forms homogeneous, can simply carry out the bubble sectionalization in the 1st porous part, and then the mobile sound of reduction refrigerant that can be certain.And, even the gas-liquid 2 phase refrigerants in the refrigerant that flows into have produced pressure pulsation, owing to can obtain the refrigerant of homogeneous, so the pressure pulsation of refrigerant forms continuously, thereby can stablize and effectively carry out throttling by the throttling path, and then can reduce the mobile sound of refrigerant.
In addition, even by the refrigerant after the 1st porous part bubble sectionalization, becoming big through bubble growth in the process of path, perhaps become big through growing up behind the throttling path, but by the 2nd porous part, because bubble can be segmented, therefore can reduce the mobile sound of refrigerant, and then suppress noise.
The solenoid valve of the 2nd invention of the present invention, the grid that forms described the 2nd porous part are by described wire is woven to irregularly shaped formation.According to the 2nd invention as can be known: described grid is owing to be that the irregular braiding of wire forms, so that the hole of grid can be suitable is selected, in addition because the density of grid has degree of dredging, so can promote the sectionalization of bubble in the refrigerant.
The solenoid valve of the 3rd invention of the present invention, the grid that forms described the 2nd porous part are to form by described wire is woven to regular shape.According to the 3rd invention as can be known: the formation of grid is because comparison rule, so grid can be realized high density, when refrigerant can rectification during by described grid, further because the gas-liquid 2 of refrigerant flow the comparison homogeneous mutually, so can further promote the sectionalization of bubble in the refrigerant.Therefore, can reduce the mobile sound of refrigerant, and then further suppress the generation of noise.
The solenoid valve of the 4th invention of the present invention, described the 2nd porous part is by by being woven to described wire the 1st grid that regular shape forms and being formed by described wire being woven to irregularly shaped the 2nd grid that forms, described throttling path is made of the path that is provided with on the discoid throttle part, described the 1st grid is arranged on the upstream side of described throttling path, and described the 2nd grid is arranged on the downstream side of described throttling path.According to the 4th invention as can be known: because the upstream side of throttling path is provided with the 1st grid that the braiding of wire rule forms, the downstream side of throttling path is provided with the 2nd grid that the irregular braiding of wire forms, so the throttling path is between the 1st grid and the 2nd grid, the refrigerant that flows into from the upstream side passage the 1st porous part, path, the 1st grid, throttling path and the 2nd grid that sintering metal constitutes of flowing through successively flows to the outflow side then.At this moment, because the component density of the 1st grid is higher, so the pressure pulsation of gas-liquid 2 phase refrigerants can realize homogenizing.Thereby can when keeping the stable restriction effect of throttling path, can implement the bubble sectionalization.Moreover, by throttling action, even there is bubble to produce in the refrigerant, owing to also can implement the sectionalization of bubble by the 2nd grid, the sound so the refrigerant that can reduce to produce because of bubble flows, and then the generation of inhibition noise.
The solenoid valve of the 5th invention of the present invention, described the 1st porous part constitutes by cylindrical portion with from the formed circular cone shape portion of taper portion of described cylindrical portion to the top of described valve rod undergauge.According to the 5th invention as can be known: because the 1st porous part is made up of cylindrical portion and circular cone shape portion, so be easier to make by the sintering metal ratio, in addition because refrigerant is the valve rod direction from the inner peripheral surface side that the outer circumferential side direction of the 1st porous part flows to the 1st porous part, so but by the 1st porous part long term maintenance silencing function.
The solenoid valve of the 6th invention of the present invention, described cylindrical portion and described circular cone shape portion are arranged on the periphery of described valve rod, described circular cone shape portion contacts with the par of the valve portion that is formed on described valve stem tip portion and disposes, described valve portion has the cylindrical part that is connected and forms with described par, and the internal configurations of described cylindrical part has described the 2nd porous part.According to the 6th invention as can be known:, make in the cylindrical part that is configured in valve portion that the 2nd porous part can be certain, so can bring into play the sectionalization effect of refrigerant for a long time because the par of the 1st porous part by valve portion can also stable easily installation.
The solenoid valve of the 7th invention of the present invention, the inner peripheral surface of described the 1st porous part and described valve rod maintain distance and form the space, and described space and described path are in opposite directions.According to the 7th invention as can be known: the space that the described relatively valve rod of the 1st porous part forms since with described path subtend, so this space is formed with the area of passage.Thereby also slowing down to form when fully spreading by described space by the refrigerant after the 1st porous part sectionalization homogenizes, in addition, and owing to the loss influence that can not be stressed flow in the described path, so can reduce the mobile sound of refrigerant.
Description of drawings
Fig. 1 is the sectional view of the 1st mode of execution of solenoid valve of the present invention.
Fig. 2 is the sectional view of the valve rod at the main position of Fig. 1.
Tectonic maps when Fig. 3 closes the valve state for Fig. 1 solenoid valve.
Fig. 4 be the 2nd mode of execution of the present invention want portion's sectional view.
Fig. 5 be the 3rd mode of execution of the present invention want portion's sectional view.
Fig. 6 be the 4th mode of execution of the present invention want portion's sectional view.
Embodiment
Following with reference to drawing detailed description embodiments of the present invention.
Fig. 1 is the sectional view of the 1st mode of execution of solenoid valve of the present invention; Fig. 2 is the enlarged view of the valve rod at the main position of Fig. 1; Phase diagram when Fig. 3 closes valve for Fig. 1 solenoid valve.Solenoid valve 1 among Fig. 1, on valve body 2, for example found the sleeve part 4 that is provided with tubulose, and comprise the electromagnetic coil 3 that is configured in sleeve part 4 peripheries by welding with valve chamber 21, be fixed on the cylindric attractor 10 in the sleeve part 4, relative with attractor 10 to and be configured in the core iron 6 of sleeve part 4 inside, be connected with core iron 6 and movably be arranged on cylindric valve rod 9 on sleeve part 4 axle direction, be formed on the valve body 2 and inflow side passage 22 that is connected with valve chamber 21 and outflow side passage 23, be formed on the seat portion 27 on the outflow side passage 23, and be configured between attractor 10 and the core iron 6 in the sleeve pipe 4 and conduct order about means and compression helical spring 8 that valve rod 9 is ordered about to the valve opening position away from the direction of seat portion 27; In addition, the recess 10a of attractor 10 matches with protuberance 41 on being formed on sleeve part 4, thereby is fixed on the sleeve part 4.The periphery of sleeve part 4 disposes described electromagnetic coil 3, and electromagnetic coil 3 is housed in the coil housing 31 of コ word shape, and the coil guide element 5 and the bolt 51 of the end socket shape of coil housing 31 by being fixed on sleeve part 4 tops are fixed on the sleeve part 4.Electromagnetic coil 3 32 is connected with lead-in wire, and electromagnetic coil 3 32 is switched on by going between.Formed inflow side, the side of valve body 2 passage 22 is connected with import side pipe (for example copper pipe) 25, and the below of valve body 2 is formed to be connected with outlet side pipe (for example copper pipe) 26 with the perpendicular outflow side passage 23 of inflow side passage 22.Therefore, import side pipe 25 is arranged on the valve body 2 perpendicularly with outlet side pipe 26, and outlet side pipe 26 is connected with the seat portion 27 of valve body 2.
Be configured in the attractor cylindraceous 10 of valve chamber 21 upsides of valve body 2, be provided with the cylindric valve rod 9 that for example brass that connects attractor 10 is made, this cylindric valve rod 9 can move along the axle direction of the sleeve part 4 of tubulose, cylindric valve rod 9 is made up of minor diameter part 91 and large-diameter portion 92, minor diameter part 91 is inserted in the formed patchhole 61 in top of core iron 6, by valve rod 9 and core iron 6 being connected the processing of minor diameter part 91 rivetings.The large-diameter portion 92 that is connected with the minor diameter part 91 of valve rod 9 and forms is arranged on the inboard of compression helical spring 8, and can drive along the inwall above-below direction of attractor 10 cylindraceous.The tip portion of large-diameter portion 92 be formed with seat portion 27 join from valve portion 93, valve portion 93 is made up of the wall 93b of portion cylindraceous that par 93a forms with being connected with this par 93a.And as shown in Figure 2, the central part of valve rod 9 is formed with the throttling path 25 as internal path.One side of throttling path 25 is connected with path 24 along the transverse direction side mouth of the large-diameter portion 92 of valve rod 9, and the opposing party is connected with outflow side passage 23.
In Fig. 1 and Fig. 2, the periphery of the large-diameter portion 92 of valve rod 9 is provided with and coats path 24 the 1st porous part 11 on every side, the 1st porous part 11 for example adopts copper powders may or copper particle etc. as the parts of bubble in the refinement refrigerant, and the sintering metal that forms by sintering constitutes.
The 1st porous part 11 forms taper, the 1st porous part 11 of this taper is made up of the circular cone shape portion 112 of cylindrical portion 111 and taper portion, this circular cone shape portion 112 link to each other with its cylindrical portion 111 and from this cylindrical portion 111 to the top of valve rod 9 undergauge.Its taper portion constitutes the outer circumferential side of circular cone shape portion 112, and relative with inflow side passage 22 to.
The cylindrical portion 111 of the 1st porous part 11 of this taper contacts with the par 93a of valve portion 93, and the inner peripheral surface of cylindrical portion 111 and circular cone shape portion 112 is by being pressed into the periphery of the large-diameter portion 92 that fixedly remains on valve rod 9 simultaneously.This hold mode is to be pressed in the formed center of the inner peripheral surface through hole 11a of the circular cone shape portion 112 of the 1st porous part 11 and cylindrical portion 111 by the large-diameter portion 92 with valve rod 9, and cylindrical portion 111 contact with the par 93a of valve portion 93 configuration and enforcement.Circular cone shape portion 112 is to large-diameter portion 92 direction undergauges as a result, thereby the 1st porous part is installed on the valve rod 9.
As mentioned above, the 1st porous part 11 disposes owing to circular cone shape portion 112 contacts with the par 93a of valve portion 93, so the 1st porous part 11 can be easy and the stable firm periphery that is assemblied in valve rod 9, in addition, the operation that the 1st porous part 11 is assembled on the valve rod 9 is also fairly simple.
Moreover, the 1st porous part 11 is owing to being formed by sintering metal, so cylindrical portion 111 and circular cone shape portion 112 make than being easier to, and the refrigerant that flows into from the outer circumferential side that the taper portion of circular cone shape portion 112 constitutes by inflow side passage 22 from the Zhou Fangxiang private side that is diffused into the 1st porous part 11 slowly, i.e. diffusion is flowed, refrigerant is flow valves bar 9 directions because diffusion is flowed, so but the structure of long term maintenance the 1st porous part.
Therefore, relative with taper the 1st porous part 11 to and the opening of the path 24 that is communicated with is arranged on the transverse direction sidepiece of the large-diameter portion 92 of valve rod 9.The opening of path 24 is represented with symbol 24a.Path 24 can a plurality of and equally spaced transverse direction sidepiece that is formed on large-diameter portion 92, for example also can for 6.Thereby can make refrigerant by a plurality of paths 24 from good the flowing in the 1st porous part 11 of the full Zhou Fangxiang efficient of valve chamber 21.Moreover, in the formed inner space 93c of the wall 93b of portion cylindraceous by valve portion 93, be formed with discoid the 2nd porous part as the parts of bubble sectionalization in the refrigerant, this discoid the 2nd porous part by the wire of regulation thickness for example the grid that forms of the irregular braiding of STAINLESS STEEL DRAW WIRE constituted, in addition this discoid the 2nd porous part 12 and outflow side passage 23 relative to and dispose.Therefore, the selection that the grid hole of porous part 12 can be suitable, the density of grid also has certain thin degree.
The 2nd porous part 12 for example by riveted fixing in the top of valve portion 93 remains on the inner space 93c of valve portion 93.The riveted fixing by the tip portion 93d of valve portion 93 on every side of the 2nd porous part 12.
Next the action of the 1st mode of execution is described.
Solenoid valve 1, when electromagnetic coil 3 by going between 32 when being in the state of energising, produce the magnetic force of opposing compression helical spring 8 spring forces according to the energising of electromagnetic coil 3, thereby attractor 10 attracts core iron 6 downward directions, core iron 6 moves in sleeve part 4, and then valve rod 9 is attracted son 10 guiding and moves to seat portion 27.Be that valve rod 9 moves to closing the valve direction, the outer circumferential face of the 93b of wall portion of the valve portion 93 of valve rod 9 closely contacts with the internal face of seat portion 27, thus make valve rod 9 seat in seat portion 27.The result as shown in Figure 3, solenoid valve 1 is for closing the valve state, valve rod 9 and the 1st porous part 11 and inflow side passage 22 relative to and dispose, thereby can close the valve operation by solenoid valve 1.
The valve state that closes as shown in Figure 3, the outflow side passage 23 of the inflow side passage 22 of import side pipe 25 and outlet side pipe 26 is communicated with by path 24 and throttling path 25.
And freeze cycle is when the dehumidifying running, when refrigerant when import side pipe 25 flows out, refrigerant is from valve chamber 21 interior flowing in the 1st porous part 11 on every side, the sintering metal that constitutes the 1st porous part 11 by flowing through carries out the bubble in the refinement refrigerant then, the sound thereby the refrigerant that can reduce to produce because of bubble flows.
When refrigerant flows to the 1st porous part 11, the periphery that the 1st porous part 11 is installed in valve rod 9 owing to cylindrical portion 111 and circular cone shape portion 112 by the sintering metal formation, so when the refrigerant that flows into from import side pipe 25, when flowing to the 1st porous part 11 around in valve chamber 21, the outer circumferential side that constitutes from the taper portion of circular cone shape portion 112 by inflow side passage 22 and the outer circumferential side diffusion slowly of cylindrical portion 111 flow in the formed center of the inner peripheral surface side through hole 11a of the circular cone shape portion 112 that constitutes porous part 11 and cylindrical portion 111.Thereby, refrigerant slows down by the 1st porous part and flows, the flowing state of the gas-liquid 2 phase refrigerants in the refrigerant forms homogeneous, can be relatively easy to carry out the sectionalization of its bubble in the inside of the 1st porous part 11, as a result, can reduce the mobile sound of refrigerant that flows to path 24 by the 1st porous part from opening 24a.And, even the gas-liquid 2 phase refrigerants that flow in the refrigerant of the 1st porous part 11 have produced pressure pulsation, because formation by the 1st porous part 11, can obtain the refrigerant of homogeneous, so, the pressure pulsation state that flows to the refrigerant of throttling path 25 from path 24 can form continuously, thereby the throttling action of 25 pairs of refrigerants of throttling path is comparatively stable, and then can reduce the mobile sound of refrigerant.
Moreover even by the bubble in the refrigerant of the 1st porous part 11 sectionalizations, growing up in the process of path 24 of flowing through becomes big, or the throttling path 25 of flowing through grows up and become big, and the bubble in its refrigerant is by the 2nd further sectionalization of porous part 12.Promptly the 2nd porous part 12 and outflow side passage 23 are relative in the inner space 93c that is arranged on valve portion 93 time, and throttling path 25 openings are connected with the 2nd porous part 12.The opening of throttling path 25 is represented with symbol 25a.Refrigerant flow in the 2nd porous part 12 from the opening 25a of throttling path 25.In the time of in refrigerant flow into the 2nd porous part 12, the 2nd porous part 12 is spent so the density of its grid has to dredge owing to be the grid that is formed by the irregular braiding of wire.Therefore, the sectionalization by grid of the bubble in the refrigerant reduces the mobile sound of refrigerant by the 2nd porous part 12 then, flows to outflow side passage 23 more then, and flows in flowing out side pipe 26.Therefore, can suppress refrigerant because of by flowing through not only path 24 behind the 1st porous part 11 then but also the pressure pulsation that speed fluctuation caused that produces by throttling path 25, and then can reduce pressure oscillation.
As a result, the 2 circulation circulation flow paths 25 of celebrating a festival mutually that can realize that a kind of refrigerant can homogeneous, pressure oscillation can be inhibited, and is difficult for producing noise, and can obtain to stablize a kind of solenoid valve of coolant throttle effect.
And, after the coolant throttle effect, refrigerant is in the inner space 93c of throttling path 25 flow valves portions 93, be refrigerant when the opening 25a of throttling path 25 flows to the 2nd porous part 12, even generation bubble, when the 2nd porous part 12, the bubble in the refrigerant also can be segmented at refrigerant, thereby can reduce the mobile sound that produces because of bubble.Therefore, can realize a kind of can flowing and stablize the solenoid valve that dehumidifying moves under the prerequisite of sound reducing refrigerant.
In the 1st mode of execution, the 1st porous part 11 is owing to the impact of the taper portion available buffer refrigerant that passes through circular cone shape portion 111, so can suppress to cover the blocked state that the 1st porous part causes because of the foreign matter of sneaking in the refrigerant.Therefore, by the 1st porous part 11 being installed in the periphery of valve rod 9, make that influence this abnormality that refrigerant circulates in inflow side passage 22 can obtain avoidance.As a result, can guarantee the area of passage of refrigerant circulation by the 1st porous part 11, and can use for a long time.
Therefore, the solenoid valve 1 in the present invention's the 1st mode of execution when long-term the use, not only can reduce the mobile sound of refrigerant, but also can realize the exsiccation of stable throttling that can be certain.
Solenoid valve 1, when the electric current to lead-in wire 32 is disconnected, because attractor 10 does not produce magnetic force, attractor 10 loses the attraction force to core iron 6, so the core iron 6 in the sleeve part 4 is the urging force of compression helical spring 8 according to the spring force of compression helical spring 8, moves to attractor 10 reciprocal tops.Thereby valve rod 9 is at the inner orientation of attractor 10 cylindraceous and be moved upward with core iron 6, and as shown in Figure 1, the valve portion 93 of valve rod 9 is away from the internal face of seat portion 27.The result, outflow side passage 23 is an open mode, and refrigerant flows to outflow side pipe 26 after passing the path of seat portion 27 internal faces formation from inflow side pipe 25 through inflow side passage 22 through outflow side passage 23, thereby the valve operation left by solenoid valve 1, forms the valve state of opening of no throttling action.This is opened under the valve state, and as shown in Figure 1, valve rod 9 is not to be arranged in valve chamber 21 refrigerants from the stream of inflow side passage 22 inflows, and therefore, refrigerant can not flow into the 1st porous part 11 that is installed in valve rod 9 peripheries.
In the present invention's the 1st mode of execution, though being described to the 1st porous part 11 is formed by sintering metal, the 2nd porous part is made of the grid that the irregular braiding of wire forms, but the present invention is as the 2nd porous part, by the porous part that grid constituted that the braiding of wire rule forms, also can bring into play same effect.Fig. 4 is that the 2nd porous part is the present invention's the 2nd mode of execution tectonic maps that the wire rule is worked out.Be that Fig. 4 is the main station diagram of solenoid valve the 2nd mode of execution of the present invention, the solenoid valve 1 of Fig. 4 and Fig. 1, the 1st mode of execution shown in Figure 2 is compared, the formation difference that is assemblied in the 2nd porous part on the valve rod 9 is only arranged, because other formations are all identical, therefore, Fig. 4 only represents valve rod 9 parts of solenoid valve 1.The valve rod 90 that Fig. 4 part omitted is the pole shape is connected by large-diameter portion 92 with this large-diameter portion and the minor diameter part 91 that forms is formed, and the top of its large-diameter portion 92 is provided with valve portion 93, thereby has formed the shape identical with valve rod shown in Figure 29.
The periphery that is the large-diameter portion 92 of valve rod 90 is equiped with Fig. 1 and the 1st porous part 11 shown in Figure 2, and the inside of large-diameter portion 92 is provided with path 24 and throttling path 25, and the part identical with Fig. 1 and Fig. 2 represented with prosign.
Be provided with in the inner space 93c of the valve portion 93 of valve rod 9 as discoid the 2nd porous part 13 that makes bubble sectionalization in the refrigerant, the 2nd porous part 13 by the wire of regulation thickness for example the grid that is woven into of STAINLESS STEEL DRAW WIRE rule constituted, the 2nd porous part 13 and outflow side passage 23 relative to and dispose.
The hole of the grid of the 2nd porous part 13 is owing to constituting comparison rule, so can realize the high density of grid.As a result, the 2nd porous part 13 when refrigerant by the time can rectification, thereby gas coolant and liquid coolant form the refrigerant of homogeneous admixture.
In addition, by the tip portion 93d riveted fixing of valve portion 93, remain in the 93c of inner space around the 2nd porous part 13 thereby insert.
Therefore, be the solenoid valve 1 of important document with valve rod 9 among Fig. 4, the same valve state that closes that is with Fig. 3 is when freeze cycle dehumidifying operation, by the 1st porous part 11 can with the above-mentioned the same bubble sectionalization that can make in the refrigerant, thereby can reduce the refrigerant that produces because of the bubble sound that flows.And, flow into refrigerants in the 2nd porous part 13 by 13 rectifications of the 2nd porous part from the opening 25a of throttling path 25, thus the sectionalization in the 2nd porous part 13 of the refrigerant of gas-liquid mixed.Therefore, can promote the sectionalization of refrigerant easily, further can reduce the mobile sound that flow into the refrigerant in the outlet side pipe 26 by outflow side passage 23.
Moreover Fig. 5 is made of sintering metal for the 1st porous part identical with the 2nd mode of execution with the present invention's the 1st mode of execution, and the tectonic maps of different the present invention's the 3rd mode of execution of main composition part the 2nd porous part.
The feature of solenoid valve the 3rd mode of execution shown in Figure 5 is: the 2nd porous part of representing with symbol 14 is the structure that discoid throttle part and the grid that clips this discoid throttle part are formed.Therefore, the 3rd mode of execution of Fig. 5, compare with the 1st mode of execution shown in Figure 2 and the 2nd mode of execution shown in Figure 4, owing to only have the throttling path that is assemblied on the valve rod 9 different, so next the part of the valve rod 9 of the solenoid valve 1 identical with Fig. 2 and Fig. 4 is described with the formation of the 2nd porous part.In addition, identical with the 1st mode of execution and the 2nd mode of execution part is represented with prosign.
Among Fig. 5, the formed inner space 93c of the wall 93b of portion cylindraceous of valve rod 9 is made of with the circular big space 93c2 directly that the end is arranged that forms that is connected with the space 93c1 of this path the space 93c1 of path.Be inserted with identical with the 2nd mode of execution discoid porous part 14b that for example is woven into grid and constitutes in the space 93c1 of path and be connected and be provided with and central authorities have the discoid throttle part 14a of throttling path 14d with porous part 14b by stainless steel metal line rule.With path 24 that the space 93c1 of path is connected have relative with porous part 14b to and be arranged on the opening 24a of the transverse direction sidepiece of valve rod 9.Be inserted with in the space 93c2 in big footpath with the 1st mode of execution earlier with for example by the irregular discoid porous part 14c that is woven to grid and constitutes of stainless steel metal line.Porous part 14c is connected with throttle part 14a and is provided with.Therefore, among the space 93c of valve rod 9, connect airtight chimeric porous part 14b, throttle part 14a and the porous part 14c of disposing successively.Described configuration is meant, the tip portion 93d by valve rod 9 is fixed on riveted fixing around the porous part 14c in the inner space 93c of valve rod 9 and porous part 14b, throttle part 14a and porous part 14c are inserted.Therefore, space 93c1 (being porous part 14b), throttle part 14a (being throttling path 14d) by path 24, path and big footpath space 93c2 (being porous part 14c) constitute the coolant path of valve rod 9.
Coolant path is to seize throttle part 14a on both sides by the arms by porous part 14b and porous part 14c to form, in other words, by the upstream side configuration porous part 14b at throttle part 14a, and the downstream side of throttle part 14a disposes porous part 14c and constitute coolant path.
When the 3rd mode of execution image pattern 3 of Fig. 5 such, solenoid valve 1 is in the valve state that closes, valve rod 9 seat when seat portion 27, the same with Fig. 2 and Fig. 4, by formed the 1st porous part 11 of sintering metal, can make the bubble sectionalization from the refrigerant that inflow side passage 22 flows into, thereby can access and reduce from the refrigerant that the opening 24a of path 24 flows to path 24 sound that flows.And, because porous part 14b is made of the 1st grid that the braiding of wire rule forms, so can realize the densification of grid hole, thereby flow into refrigerant in the porous part 14b from path 24, can obtain rectification during by the 1st grid, the refrigerant of gas-liquid mixed can be segmented in porous part 14b.
And by the rectificationization of porous part 14b, the upstream side from throttle part 14a that the refrigerant of mixing can be certain flow into throttling path 14d.And refrigerant can reduce pressure by throttling path 14d, and is to reduce pressure under the mixed homogeneous state of refrigerant.Be that refrigerant reduces pressure under flowing state, the refrigerant pulsation of throttling path 14d forms continuously, thereby can reduce the mobile sound of refrigerant.Moreover, even the gas-liquid 2 phase refrigerants that flow in the refrigerant in the porous part 14b have produced pressure pulsation, rectified action by the 1st grid, because the state of pressure pulsation can homogeneous, so flowing to the refrigerant pressure pulsation of throttling path 14d forms continuously, thereby throttling path 14d can realize stable throttling action, and then reduces the mobile sound of refrigerant.In addition, owing to porous part 14c is made of the 2nd grid, and be configured in the large-diameter portion 93c2, so the refrigerant that flow in the porous part 14c from throttling path 14d can spread and sectionalization in porous part 14c fully.Therefore, can further make the refrigerant sectionalization that flow in the porous part 14c, and, after refrigerant is through throttling path 14d, become big even grow up, described the 2nd grid is owing to be the formation of the irregular braiding of wire, so the bubble of described inflow can be by sufficient sectionalization.
Thereby, can further reduce from outflow side passage 23 flowing into the mobile sound of the refrigerants that export in the side pipe 26.
Therefore, by valve rod 9 as can be known, refrigerant is by the coolant path on the valve rod 9 in the valve chamber 21 that is formed on solenoid valve 1, the throttling path 14d of porous part 14b, the throttle part 14a of the 1st porous part 11, path the 24, the 1st grid formation of flowing through successively, the porous part 14c that the 2nd grid constitutes, refrigerant is by each porous part bubble sectionalization fully of internal path.Therefore, can obtain a kind of fluid and flow that sound is low to be subtracted and the solenoid valve of quietization raising.
The 3rd mode of execution shown in Figure 5 of the present invention as mentioned above, the periphery of having described valve rod 9 is equiped with the 1st porous part 11, in addition, the present invention also can keep the periphery of the 1st porous part 11 with valve rod 9 distance of regulation and utilize the space of drum and path 24 to be configured in opposite directions on the valve rod 9.
Fig. 6 is formed with the space between valve rod 9 and the 1st porous part 11, and valve rod 9 be provided with the 1st porous part 11 solenoid valve of the present invention the 4th mode of execution want cage structure figure.
What the symbol 16 among Fig. 6 was represented is described space, and space 16 is connected with path 24.
By space 16 is set, because space 16 and path 24 are in opposite directions, so be formed with the area of passage 24, thereby pass through the refrigerant of the 1st porous part 11 sectionalizations, also slow down when can fully spread by the described area of passage from porous part 11 to path.As a result, because refrigerant can be homogenized, flow in the path 24 nor be stressed to lose to influence, so can suppress the generation of the mobile sound of refrigerant.Therefore, can provide a kind of and further suppress the solenoid valve that noise produces by space 16.
In addition, among Fig. 6 except that the formation in space 16, because other formation are identical with the 3rd mode of execution shown in Figure 5, so the part identical with Fig. 5 represented the omission explanation with prosign.
Claims (9)
1. solenoid valve, by electromagnetic coil make valve rod near or away from the valve seat that is formed on the valve body; It is characterized in that:
Described valve body has inflow side passage and outflow side passage, described valve rod have be installed in described valve rod periphery and with described inflow side passage in opposite directions taper the 1st porous part and remain in the described valve rod and with described outflow side passage discoid the 2nd porous part in opposite directions;
The inside of described valve rod is provided with path that is connected with described the 1st porous part and the throttling path that is connected with described path;
Described throttling path is towards described the 2nd porous part opening, and described the 1st porous part is formed by sintering metal, and described the 2nd porous part is the grid that wire forms.
2. solenoid valve according to claim 1 is characterized in that: forming the grid of described the 2nd porous part, is by described wire is woven to irregularly shaped formation.
3. solenoid valve according to claim 1 is characterized in that: forming the grid of described the 2nd porous part, is to form by described wire is woven to regular shape.
4. solenoid valve according to claim 1, it is characterized in that: described the 2nd porous part is by by being woven to described wire the 1st grid that regular shape forms and being formed by described wire being woven to irregularly shaped the 2nd grid that forms, described throttling path is made of the path that is provided with on the discoid throttle part, described the 1st grid is arranged on the upstream side of described throttling path, and described the 2nd grid is arranged on the downstream side of described throttling path.
5. according to any described solenoid valve in the claim 2～4, it is characterized in that: described the 1st porous part constitutes to the circular cone shape portion that the taper portion of the top of described valve rod undergauge is constituted by cylindrical portion with from described cylindrical portion.
6. solenoid valve according to claim 5, it is characterized in that: described cylindrical portion and described circular cone shape portion are arranged on the periphery of described valve rod, described circular cone shape portion contacts with the par of the valve portion that is formed on described valve stem tip portion and disposes, described valve portion has the cylindrical part that is connected and forms with described par, and the internal configurations of described cylindrical part has described the 2nd porous part.
7. according to any described solenoid valve in the claim 1～4, it is characterized in that: the inner peripheral surface of described the 1st porous part and described valve rod maintain distance and form the space, and described space and described path are in opposite directions.
8. solenoid valve according to claim 5 is characterized in that: the inner peripheral surface of described the 1st porous part and described valve rod maintain distance and form the space, and described space and described path are in opposite directions.
9. solenoid valve according to claim 6 is characterized in that: the inner peripheral surface of described the 1st porous part and described valve rod maintain distance and form the space, and described space and described path are in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910160669 CN101988584B (en) | 2009-07-29 | 2009-07-29 | Magnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910160669 CN101988584B (en) | 2009-07-29 | 2009-07-29 | Magnetic valve |
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| Publication Number | Publication Date |
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| CN101988584A true CN101988584A (en) | 2011-03-23 |
| CN101988584B CN101988584B (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200910160669 Active CN101988584B (en) | 2009-07-29 | 2009-07-29 | Magnetic valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356025A (en) * | 2016-05-10 | 2017-11-17 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
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| JP2003156269A (en) * | 2001-11-20 | 2003-05-30 | Fuji Koki Corp | Solenoid valve |
| CN1453532A (en) * | 2002-04-25 | 2003-11-05 | 株式会社鹭宫制作所 | Throttle valve and air conditioner |
| CN1467397A (en) * | 2002-06-25 | 2004-01-14 | 株式会社不二工机 | Motor-operated valve |
| CN1699803A (en) * | 2004-05-19 | 2005-11-23 | 株式会社鹭宫制作所 | Throttle valve device and air conditioner |
| CN101363554A (en) * | 2007-08-09 | 2009-02-11 | 株式会社鹭宫制作所 | Normal-open electromagnetic valve and air conditioner |
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2009
- 2009-07-29 CN CN 200910160669 patent/CN101988584B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191589A (en) * | 1995-07-31 | 1998-08-26 | 唐纳森公司 | Silencer for gas flow |
| JP2003156269A (en) * | 2001-11-20 | 2003-05-30 | Fuji Koki Corp | Solenoid valve |
| CN1453532A (en) * | 2002-04-25 | 2003-11-05 | 株式会社鹭宫制作所 | Throttle valve and air conditioner |
| CN1467397A (en) * | 2002-06-25 | 2004-01-14 | 株式会社不二工机 | Motor-operated valve |
| CN1699803A (en) * | 2004-05-19 | 2005-11-23 | 株式会社鹭宫制作所 | Throttle valve device and air conditioner |
| CN101363554A (en) * | 2007-08-09 | 2009-02-11 | 株式会社鹭宫制作所 | Normal-open electromagnetic valve and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356025A (en) * | 2016-05-10 | 2017-11-17 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN107356025B (en) * | 2016-05-10 | 2021-08-10 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
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| Publication number | Publication date |
|---|---|
| CN101988584B (en) | 2013-05-29 |
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Address after: 312500 Liquan village of Zhejiang County in Xinchang Province town under Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Liquan village of Zhejiang County in Xinchang Province town under Patentee before: Zhejiang Sanhua Group Co., Ltd. |