CN101988584B - Magnetic valve - Google Patents
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- CN101988584B CN101988584B CN 200910160669 CN200910160669A CN101988584B CN 101988584 B CN101988584 B CN 101988584B CN 200910160669 CN200910160669 CN 200910160669 CN 200910160669 A CN200910160669 A CN 200910160669A CN 101988584 B CN101988584 B CN 101988584B
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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 switches cold air and heating installation by the refrigerant Flow reverse that will flow to outdoor heat converter and indoor heat converter.
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 arranges 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 flow noise, when refrigerant produces flow noise, and then form noise.
In order to prevent the generation of refrigerant flow noise, for example with reference to JP 2003-156269 Patent Document 1, 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 described bubble collapses brokenly the refrigerant flow noise 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 purpose of refrigerant flow noise.
Moreover, for example with reference to JP 2009-41667 Patent Document 3, 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 that catches the filtration of foreign substance in the refrigerant.In the foreign substance of this circular porous body in filtering the refrigerant that catches 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 such shortcoming of further reduction refrigerant flow noise but exist.
Summary of the invention
Therefore, the present invention is to address the above problem as purpose, 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 because diverging flow that can be gradually, 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 flow noise of refrigerant.
And even gas-liquid 2 phase refrigerants produce pressure pulsation, the refrigerant by homogeneous is owing to can realize stable coolant throttle effect, so equally also can realize reducing the purpose of refrigerant flow noise.
For reaching aforementioned purpose, the invention provides a kind of solenoid valve, valve rod is approached or away from the valve seat that is formed on the valve body by electromagnetic coil; 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 the 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 flowed to valve rod, the private side from the outer circumferential side of taper section to the 1st porous part is diverging flow gradually.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 reduction refrigerant flow noise 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 flow noise of refrigerant.
In addition, even by the refrigerant after the 1st porous part bubble sectionalization, becoming large through bubble growth in the process of path, perhaps become large through growing up behind the throttling path, but by the 2nd porous part, because bubble can be segmented, therefore can reduce the flow noise 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 flow noise 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 arranges 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, then 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 consists of of flowing through successively flow to the outflow side.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 Bubble formation is arranged in the refrigerant, owing to also can implement the sectionalization of bubble by the 2nd grid, thus can reduce the refrigerant flow noise that produces because of bubble, and then suppress the generation of noise.
The solenoid valve of the 5th invention of the present invention, described the 1st porous part is made of the formed circular cone shape section of taper section of cylindrical portion and the top undergauge from described cylindrical portion to described valve rod.According to the 5th invention as can be known: because the 1st porous part is comprised of cylindrical portion and circular cone shape section, 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 section are arranged on the periphery of described valve rod, described circular cone shape section contacts with the par of the valve section that is formed on described valve stem tip section and disposes, described valve section 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: since the par of the 1st porous part by valve section can be easily also stable installation, make in the cylindrical part that is configured in valve section that the 2nd porous part can be certain, so can bring into play for a long time the sectionalization effect of refrigerant.
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 relatively described 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 impact that can not be stressed flow in the described path, so can reduce the refrigerant flow noise.
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.
Fig. 3 is the tectonic maps of Fig. 1 solenoid valve when closing the valve state.
Fig. 4 be the 2nd mode of execution of the present invention want section's sectional view.
Fig. 5 be the 3rd mode of execution of the present invention want section's sectional view.
Fig. 6 be the 4th mode of execution of the present invention want section's sectional view.
Embodiment
Describe embodiments of the present invention in detail referring to drawing.
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; Fig. 3 is the phase diagram of Fig. 1 solenoid valve when closing valve.Solenoid valve 1 among Fig. 1, on the valve body 2 with valve chamber 21, for example found the sleeve part 4 that is provided with tubulose by welding, and comprise the electromagnetic coil 3 that is configured in sleeve part 4 peripheries, 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 the 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 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 comprised 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 section 93, valve section 93 is comprised of the wall 93b of section 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 is as the parts of bubble in the refinement refrigerant, and such as adopting copper powders may or copper particle etc., the sintering metal that forms by sintering consists of.
The 1st porous part 11 forms taper, the 1st porous part 11 of this taper is comprised of the circular cone shape section 112 of cylindrical portion 111 and taper section, and this circular cone shape section 112 links to each other with its cylindrical portion 111 and the top undergauge from this cylindrical portion 111 to valve rod 9.Its taper section consists of the outer circumferential side of circular cone shape section 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 section 93, and the inner peripheral surface of cylindrical portion 111 and circular cone shape section 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 through of the inner peripheral surface hole 11a of the circular cone shape section 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 section 93 configuration and enforcement.Circular cone shape section 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 section 112 contacts with the par 93a of valve section 93, so the 1st porous part 11 can the easy and stable periphery that firmly 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 section 112 make than being easier to, and slowly be diffused into the private side of the 1st porous part 11 from Zhou Fangxiang by inflow side passage 22 from the refrigerant that the outer circumferential side that the taper section of circular cone shape section 112 consists of flows into, it is diverging flow, refrigerant is because diverging flow flows to valve rod 9 directions, 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 represents 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 all-round direction efficient of valve chamber 21.Moreover, in the formed inner space 93c of the wall 93b of section cylindraceous by valve section 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 consisted of, 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 remains in the inner space 93c of valve section 93 by the top that riveted joint is fixed on valve section 93.Tip portion 93d by valve section 93 around the 2nd porous part 12 rivets fixing.
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 is in sleeve part 4 interior movements, 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 section of the valve section 93 of valve rod 9 and the internal face close contact of seat portion 27, thereby 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 flows out from import side pipe 25, refrigerant is from valve chamber 21 interior flowing in the 1st porous part 11 on every side, then the sintering metal that consists of the 1st porous part 11 by flowing through carries out the bubble in the refinement refrigerant, thereby can reduce the refrigerant flow noise that produces because of bubble.
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 section 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 the valve chamber 21, the outer circumferential side that consists of from the taper section of circular cone shape section 112 by inflow side passage 22 and the outer circumferential side of cylindrical portion 111 slowly diverging flow in the formed through of the inner peripheral surface side hole 11a of the circular cone shape section 112 that consists of 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 refrigerant flow noise 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 the 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 flow noise 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 large, or the throttling path 25 of flowing through grows up and become large, and the bubble in its refrigerant is by the 2nd further sectionalization of porous part 12.In the time of namely in the 2nd porous part 12 and the outflow side passage 23 relative inner space 93c to being arranged on valve section 93, throttling path 25 openings are connected with the 2nd porous part 12.The opening of throttling path 25 represents with symbol 25a.Refrigerant flow in the 2nd porous part 12 from the opening 25a of throttling path 25.When refrigerant flow into the 2nd porous part 12 when interior, the 2nd porous part 12 is owing to be the grid that is formed by the irregular braiding of wire, so the density of its grid has degree of dredging.Therefore, then the bubble in the refrigerant flows to outflow side passage 23 again by grid and then sectionalization reduces the refrigerant flow noise by the 2nd porous part 12, and is flowing out side pipe 26 interior flowing.Therefore, can suppress refrigerant because of the pressure pulsation that speed fluctuation caused by not only flowing through path 24 then behind the 1st porous part 11 but also producing 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 sections 93, when to be refrigerant from the opening 25a of throttling path 25 flow 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 flow noise that produces because of bubble.Therefore, can realize a kind of solenoid valve that can under the prerequisite that reduces the refrigerant flow noise, stablize the dehumidifying operation.
In the 1st mode of execution, the 1st porous part 11 is owing to the impact of the taper section available buffer refrigerant that passes through circular cone shape section 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 is installed in the periphery of valve rod 9, can obtain avoiding at this abnormality of inflow side passage 22 interior circulations so that affect refrigerant.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 flow noise 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 moved upward with core iron 6 in the inside of attractor 10 cylindraceous guiding, and as shown in Figure 1, the valve section 93 of valve rod 9 is away from the internal face of seat portion 27.The result, outflow side passage 23 is 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 without 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, although 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, the porous part that the grid that forms by the braiding of wire rule consists of also can be brought 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, only there is the formation that is assemblied in the 2nd porous part on the valve rod 9 different, because other formations are all identical, therefore, Fig. 4 only represents valve rod 9 parts of solenoid valve 1.The valve rod 90 that slightly is the pole shape among Fig. 4 is connected by large-diameter portion 92 with this large-diameter portion and the minor diameter part 91 that forms forms, and the top of its large-diameter portion 92 is provided with valve section 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 represents with prosign.
Be provided with in the inner space 93c of the valve section 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 consisted of, 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 consisting of 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, the tip portion 93d riveted joint by valve section 93 around the 2nd porous part 13 is fixing, remains in the 93c of inner space thereby insert.
Therefore, solenoid valve 1 take valve rod 9 as important document 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 flow noise that produces because of bubble.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 easily the sectionalization of refrigerant, further can reduce the flow noise 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 that represents with symbol 14 is the structure that discoid throttle part and the grid that clips this discoid throttle part form.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 with the formation of the 2nd porous part, so next the part of the valve rod 9 of the solenoid valve 1 identical with Fig. 2 and Fig. 4 is described.In addition, the part identical with the 1st mode of execution and the 2nd mode of execution represents with prosign.
Among Fig. 5, the formed inner space 93c of the wall 93b of section cylindraceous of valve rod 9 is made of with the circular large 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 by stainless steel metal line rule and consists of in the space 93c1 of path and be connected with porous part 14b and arrange and central authorities have the discoid throttle part 14a of throttling path 14d.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 large footpath with the 1st mode of execution first with for example by the irregular discoid porous part 14c that is woven to grid and consists of of stainless steel metal line.Porous part 14c is connected with throttle part 14a and arranges.Therefore, among the space 93c of valve rod 9, connect airtight successively chimeric porous part 14b, throttle part 14a and the porous part 14c of disposing.Described configuration refers to, and is by the tip portion 93d of valve rod 9 that riveted joint around the porous part 14c is fixing, is fixed 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), the throttle part 14a (being throttling path 14d) by path 24, path and large footpath space 93c2 (being porous part 14c) consist of 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 consist of coolant path.
When the 3rd mode of execution of Fig. 5 as Fig. 3, 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, reduce thereby can access from the refrigerant flow noise that the opening 24a of path 24 flows to path 24.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 rectification 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 refrigerant flow noise.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 refrigerant flow noise.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 large 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 refrigerant flow noise that exports 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 24, the 1st grid formation of flowing through successively, the porous part 14c that the 2nd grid consists of, refrigerant is by the fully bubble sectionalization of each porous part of internal path.Therefore, can obtain that a kind of Fluid Flow in A 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 be provided with on the valve rod 9 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 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 from porous part 11 to path, 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.As a result, because refrigerant can be homogenized, flow in the path 24 nor be stressed to lose to affect, so can suppress the generation of refrigerant flow noise.Therefore, can provide a kind of solenoid valve that further suppresses noise producing by space 16.
In addition, among Fig. 6 except the formation in space 16, because other formations are identical with the 3rd mode of execution shown in Figure 5, so the part identical with Fig. 5 represents that with prosign description thereof is omitted.
Claims (5)
1. solenoid valve approaches valve rod or away from the valve seat that is formed on the valve body by electromagnetic coil; 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 the 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;
Described the 1st porous part is made of the circular cone shape section that the taper section of cylindrical portion and the top undergauge from described cylindrical portion to described valve rod consists of;
Described cylindrical portion and described circular cone shape section are arranged on the periphery of described valve rod, described circular cone shape section contacts with the par of the valve section that is formed on described valve stem tip section and disposes, described valve section 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.
2. solenoid valve according to claim 1, it 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, it 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 arranges 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. the described solenoid valve of any one according to claim 1～4 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 CN101988584A (en) | 2011-03-23 |
| CN101988584B true CN101988584B (en) | 2013-05-29 |
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| 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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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003156269A (en) * | 2001-11-20 | 2003-05-30 | Fuji Koki Corp | Solenoid valve |
-
2009
- 2009-07-29 CN CN 200910160669 patent/CN101988584B/en active Active
Patent Citations (5)
| 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-156269A 2003.05.30 |
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| CN101988584A (en) | 2011-03-23 |
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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. |