CN201297811Y - Throttle pipe for domestic air conditioners - Google Patents
Throttle pipe for domestic air conditioners Download PDFInfo
- Publication number
- CN201297811Y CN201297811Y CNU2008201654775U CN200820165477U CN201297811Y CN 201297811 Y CN201297811 Y CN 201297811Y CN U2008201654775 U CNU2008201654775 U CN U2008201654775U CN 200820165477 U CN200820165477 U CN 200820165477U CN 201297811 Y CN201297811 Y CN 201297811Y
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- quiet spool
- pore
- valve plug
- movable valve
- spool
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/38—Expansion means; Dispositions thereof specially adapted for reversible cycles, e.g. bidirectional expansion restrictors
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a throttle pipe for domestic air conditioners, which comprises a tubular valve body (1), a left static valve core (2), a right static valve core (3) and a dynamic valve core (4), wherein, the right static valve core (3) is provided with an inner passage; the dynamic valve core (4) is provided with a capillary pore (41) inside; the left static valve core (2) is provided with a left capillary pore (21) inside; a recessed cavity (22) is formed on the right end surface of the left static valve core (2); the left capillary pore (21) penetrates the bottom surface of the recessed cavity (22); and when the dynamic valve core (4) is moved to the leftmost end, the left end surface of the dynamic valve core (4) contacts and matches with the right end surface of the left static valve core (2), a cavity is formed between the recessed cavity (22) and the left end surface of the dynamic valve core (4), and the capillary pore (41) on the dynamic valve core is communicated with the recessed cavity (22) at the same time. The refrigerant has an expansion and amplification process when the refrigerant flows into the recessed cavity with larger space from the left end of the throttle pipe, so that the flow speed of the refrigerant is ensured. Proved by experiments, if the refrigerant has proper expansion and amplification process when passing through the capillary pore of the left static valve core, the throttle effect of the throttle pipe can be ensured.
Description
Technical field
The utility model belongs to the technical field of air-conditioning, relates in particular to a kind of throttle pipe of household air conditioner.
Background technology
Throttle structure in the small-type refrigeration appliances such as existing domestic air conditioning generally adopts choke valve or throttle block structure, as a patent No. is that the Chinese utility model patent " choke valve " of ZL97236534.6 (notification number is CN2295085Y) has disclosed a kind of choke valve, it is characterized in that: be fixed with two relative valve A and valve B in the housing, a: valve A comprises that an end is fixed with the valve body of pad, the valve body middle part has through hole, its large aperture part has a spool, the spool middle part has spray orifice, and an end of importing and exporting relatively on valve body is connected with filter screen; B: valve B comprises that an end is fixed with the valve body of pad, and the valve body middle part has through hole, and its large aperture part has a spool, and the spool middle part has spray orifice, and an end of importing and exporting relatively on valve body is connected with filter screen.
As a patent No. is that the Chinese utility model patent " throttling arrangement of the throttling of a kind of orifice plate type, shunting " of ZL03247899.2 (notification number is CN2639808Y) has disclosed a kind of throttling arrangement, and it comprises shell, main aperture plate, auxilliary orifice plate, plate washer.The main aperture plate is fixed on shell one end, and plate washer is fixed on the other end of shell, and auxilliary orifice plate is loaded in the shell and places between main aperture plate and the plate washer, and auxilliary orifice plate can change mobile with two ends fluid pressure difference in the shell.When auxilliary orifice plate moved to main aperture plate one end, fluid must pass through two orifice plate central small hole throttlings; When auxilliary orifice plate moved to plate washer one end, fluid was only by the throttling of main aperture plate central small hole.
As a patent No. is a kind of throttle pipe so the Chinese utility model patent " a kind of air conditioner refrigerating throttle pipe " of ZL200420090859.8 (notification number is CN2769788Y) has disclosed, it comprises that device is at ducted columniform motion block with decide piece, wherein the two ends of motion block are the dome conical surface, and there is an aperture to run through the motion block axle center, be coolant channel, this motion block can be free to slide in the cavity of deciding the formation of piece and described duct wall; Describedly decide totally two of pieces, the suitable distance of being separated by also is individually fixed in described inner-walls of duct, the end face adjacent with described motion block is the recessed taper seat that coincide with the motion block end face, the other end is the plane or the conical surface, describedly decide piece end face a plurality of perforation apertures that distribute, and its axle center is the capillary passage aisle, be coolant channel, and described two to decide the axial dimension of piece inequality, can change in the air-conditioning refrigeration system that the length of throttle capillary tube adapts to refrigeration and heating condition transforms mutually, to reach throttling performance matching requirements capillaceous when regulating refrigeration and heating, improve the economy of air-conditioning refrigeration system.
Yet, in above-mentioned each throttling arrangement when movable valve plug contacts with quiet spool end, pore on the quiet spool and the pore on the movable valve plug directly connect, the cold-producing medium that flows through pore junction on one of them quiet spool and the movable valve plug flows gently, may cause the flowing velocity of cold-producing medium slow excessively, and influence refrigeration.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of throttle pipe of household air conditioner that makes the cold-producing medium that flows through pore junction on one of them quiet spool and the movable valve plug that one expansion amplification process be arranged at above-mentioned prior art present situation, and it has, and structure is comparatively reasonable, the advantage of good throttle effect.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of throttle pipe of household air conditioner, include tubular valve body, be interval with the left and right quiet spool that is provided with described valve body relative fixed in the valve body, in valve body, also be provided with a valve body axial slip and the movable valve plug between left and right two quiet spools relatively; Have in the quiet spool in the described right side and axially run through the passage that passes through for cold-producing medium, have pore in the described movable valve plug, have left pore in the quiet spool in a described left side; It is characterized in that: also have the cavity of a bore greater than left pore diameter on the right side of the quiet spool in a described left side, described left pore is connected with cavity; Move under the high order end state at movable valve plug, described movable valve plug left side contacts cooperation with the right side of left quiet spool, and the described cavity of left side underfill of described movable valve plug, and the pore on the movable valve plug communicates with described cavity simultaneously; Move under the low order end state at movable valve plug, described movable valve plug right side contacts cooperation with the left side of right quiet spool, simultaneously the pore on the movable valve plug and the channel connection of right quiet spool.
In the above-mentioned left quiet spool left pore is only arranged, and left pore is one.On the quiet spool therein a pore only is set, and there is not spout hole, there is the structure of spout hole and pore to want simple simultaneously on two quiet spools in the existing relatively air-conditioning throttle pipe, through experiment, this structure has better restriction effect equally, and the simplification processing technology thereof, thereby can reduce product cost.The curved cavity that also have to increase, make when cold-producing medium when this quiet spool direction that has pore flows into, cold-producing medium enters and has an effect that expands and amplify in the cavity, produces the power of bigger promotion movable valve plug, the working sensitivity height is guaranteed restriction effect simultaneously.
Think between the left and right sides both ends of the surface of above-mentioned movable valve plug and the inner face of left and right quiet spool that plane contact cooperates for good, plane contact cooperates the structure that can simplify movable valve plug and quiet spool, also can guarantee when movable valve plug with after left quiet spool contacts, cavity space maximum between them is guaranteed cold-producing medium expansion amplification effect.Certainly, the end face of movable valve plug and each quiet spool cooperates and can be, for plane contact cooperates, contacts cooperation for the conical surface between the right side of this movable valve plug and the left side of right quiet spool between the left side of above-mentioned movable valve plug and the right side of left quiet spool.Can also be for the conical surface contacts cooperation, to cooperate for plane contact between the right side of this movable valve plug and the left side of right quiet spool between the left side of above-mentioned movable valve plug and the right side of left quiet spool.
Above-mentioned cavity cross section is square, circle or taper, is good with square, circle generally.
Above-mentioned movable valve plug left side has a protuberance that matches with the cavity profile, and the pore on the movable valve plug runs through described protuberance, and the thickness of this protuberance is less than the degree of depth of cavity.Protuberance plays certain guide effect with cooperating of recess.
Passage in the above-mentioned right quiet spool axially runs through spout hole and a right pore of passing through for cold-producing medium by several to be formed, and the right pore of the left pore of the quiet spool in a described left side, the pore of movable valve plug and right quiet spool is aligned on the same axis.Certainly, the passage in the above-mentioned right quiet spool is the spout hole for passing through for cold-producing medium only, and the spout hole of the left pore of the quiet spool in a described left side, the pore of movable valve plug and right quiet spool is aligned on the same axis.Can also be, the passage in the quiet spool in the above-mentioned right side only be right pore, described left pore, pore and right pore to it on same axis.We can test more factually needs to select the quiet valve core structure in the above-mentioned right side.
Above-mentioned left quiet spool is made up of two quiet spool monomers, and adjacent two quiet spool monomers fit tightly and form complete left quiet spool.The quiet spool in a left side adopts at least two monomers to be spliced, so the axial length of each monomer is short relatively, processing spout hole or pore are simple relatively on this monomer, also have through experiment and learn, be spliced when quiet spool adopts two or more monomers, can change the restriction effect of throttle pipe, promptly to compare restriction effect different for the quiet spool of its monoblock type with same axial length, make the adaptability of this throttle pipe stronger, the restriction effect of conveniently adjusted throttle pipe.
Above-mentioned left quiet spool is made up of at least two quiet spool monomers, and adjacent two quiet spool monomers are provided with at interval.Be provided with back-up ring between the adjacent two above-mentioned quiet spool monomers.
General air-conditioning throttle pipe, described left and right quiet spool directly and valve interior wall fix.Because the outer peripheral face and the valve body inner peripheral surface of left and right quiet spool are smooth structure, therefore, be fixed together to good in mode between above-mentioned left and right quiet spool outer peripheral face and the valve interior wall by extruding, the mode of extruding has the simple advantage in location.Bigger because of left and right quiet spool wall thickness again, and the valve body tube wall is thinner, still can on left and right quiet spool outer peripheral face, be provided with one or more cannelure respectively in advance, again in the outside application of force of valve body, the valve interior wall extruding is snapped onto in the described cannelure, can make valve body and left and right quiet spool strong bonded like this.
Also be provided with a bushing pipe between above-mentioned left and right quiet spool and movable valve plug and the valve interior wall, this bushing pipe and described valve interior wall are fixed, described left and right quiet valve core chamber is in being fixed in described bushing pipe, and the outer face of each quiet spool flushes with the both ends of the surface of described bushing pipe respectively.Increasing the bushing pipe structure can make the installation location of two quiet spools and movable valve plug simple and accurate, the bushing pipe of appropriate length is set as required, earlier movable valve plug being put into bushing pipe packs two quiet spools into then from the bushing pipe two ends, only need to keep the outer face of two quiet spools to flush respectively with the bushing pipe both ends of the surface, each parts is in place, therefore installs very convenient; According to the profile and the size of quiet spool, we can just can record where to push bushing pipe in the bushing pipe outside simultaneously, so the location of quiet spool is also accurately convenient.
Because bushing pipe outer peripheral face and valve body inner peripheral surface are smooth structure, be fixed together to good in mode between therefore above-mentioned bushing pipe outer peripheral face and the valve interior wall by extruding, the mode of extruding has the simple advantage in location; In like manner, because left and right quiet spool outer peripheral face is level and smooth, also be fixed together between described left and right quiet spool outer peripheral face and the bushing pipe inwall by the mode of pushing.Bigger because of left and right quiet spool wall thickness again, and the tube wall of valve body and bushing pipe is thinner, still can on left and right quiet spool outer peripheral face, be provided with one or more cannelure respectively in advance, again in the outside application of force of valve body, the bushing pipe inwall is expressed in the described cannelure, simultaneously, valve interior wall also can correspondingly be expressed on the bushing pipe outer wall, can make like this valve body and left and right quiet spool strong bonded.
Compared with prior art, advantage of the present utility model is: design of the present utility model is, has the cavity of a bore greater than left pore diameter on the right side of the quiet spool in a left side, and described left pore runs through the bottom surface of cavity; Contact cooperation in the movable valve plug left side with the right side of left quiet spool, and form cavity between the left side of described cavity and movable valve plug, pore on the movable valve plug communicates with described cavity simultaneously, like this, when cold-producing medium when the left end of throttle pipe flows into, cold-producing medium enters in the bigger cavity in space after by left pore, cold-producing medium has a process that expands and amplify, guarantee flow of refrigerant speed, the experiment proved that, when having a suitable expansion amplification process can guarantee this throttle pipe restriction effect preferably through the cold-producing medium behind the left quiet spool pore.
Description of drawings
Fig. 1 is the structure cutaway view of the 1st embodiment of the utility model;
Fig. 2 is the structure cutaway view of the 2nd embodiment of the utility model;
Fig. 3 is the structure cutaway view of the 3rd embodiment of the utility model;
Fig. 4 is the right view of the 3rd embodiment of the utility model;
Fig. 5 is the structure cutaway view of the 4th embodiment of the utility model;
Fig. 6 is the right view of the 4th embodiment of the utility model;
Fig. 7 is the structure cutaway view of the 5th embodiment of the utility model;
Fig. 8 is the structure cutaway view of the 6th embodiment of the utility model;
Fig. 9 is the structure cutaway view of the 7th embodiment of the utility model;
Figure 10 is the structure cutaway view of the 8th embodiment of the utility model;
Figure 11 is the structure cutaway view of the 9th embodiment of the utility model;
Figure 12 is the structure cutaway view of the 10th embodiment of the utility model;
Figure 13 is the structure cutaway view of the 11st embodiment of the utility model;
Figure 14 is the structure cutaway view of the 12nd embodiment of the utility model;
Figure 15 is the structure cutaway view of the 13rd embodiment of the utility model;
Figure 16 is the structure cutaway view of the 14th embodiment of the utility model;
Figure 17 is the structure cutaway view of the 15th embodiment of the utility model;
Figure 18 is the structure cutaway view of the 16th embodiment of the utility model;
Figure 19 is the structure cutaway view of the 17th embodiment of the utility model;
Figure 20 is the structure cutaway view of the 18th embodiment of the utility model.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Be illustrated in figure 1 as first embodiment of the present utility model.
A kind of throttle pipe of household air conditioner includes tubular valve body 1, and valve body 1 is generally made by copper or aluminium or steel pipe, and described valve body is cylindrical, and the internal diameter of valve body 1 is Φ 5～Φ 30mm; Be interval with two left and right quiet spools 2,3 that directly fixedly install with described valve body 1 in the valve body 1, in valve body 1, also be provided with valve body 1 axial slip and the movable valve plug 4 between left and right two quiet spools 2,3 relatively, distance between the left and right quiet spool 2,3 is greater than the axial dimension of movable valve plug 4, to guarantee that movable valve plug 4 can slippage between left and right quiet spool 2,3.Described left and right quiet spool 2,3 and movable valve plug 4 can adopt copper, aluminium, steel or plastics to make, and left and right quiet spool 2,3 and movable valve plug 4 be with valve body 1 inner chamber match cylindric.
Only has a left pore 21 in the quiet spool 2 in a described left side, and should have only one by left side pore 21, this left side pore 21 axially runs through the axle center of left quiet spool 2, also have the cavity 22 of a bore on the right side of the quiet spool 2 in this left side greater than left pore 21 diameters, these cavity 22 cross sections are rounded or square, and described left pore 21 runs through the bottom surface of cavity 22.
Only have one in the quiet spool 3 in the described right side and axially run through the spout hole 32 that passes through for cold-producing medium, this spout hole 32 axially runs through the axle center of right quiet spool 3, described spout hole 32 is a circular hole, and the circular hole ratio is easier to processing, and the cross section of spout hole is greater than the cross section of pore.Can certainly be circular hole, square hole, tri-angle-holed, polygonal hole or mounting hole.
The outer peripheral face of described movable valve plug 4 contacts with valve body 1 inner wall sealing, be cold-producing medium can not driven spool 4 and valve body 1 inwall between pass through, and has pore 41 in the described movable valve plug 4, this pore 41 axially runs through the axle center of movable valve plug 4, described left pore 21, pore 41 and right pore 32 are aligned on the same axis, cooperate for plane contact between the inner face of the left and right sides both ends of the surface of described movable valve plug 4 and left and right quiet spool 2,3.
The aperture of described left pore 21, pore 41 is Φ 0.8～Φ 3mm.Through experiment as can be known, when the aperture of pore during less than 0.8mm, cold-producing medium almost can not pass through pore, when the aperture of pore during greater than 3mm, pore can not play the effect of throttling again, and therefore, the aperture of above-mentioned left pore 21, right pore 31, pore 41 is Φ 0.8～Φ 3mm.Pore then restriction effect less than normal is good more in this scope.
Move under the high order end state at movable valve plug 4, described movable valve plug 4 left sides cooperate with the right side plane contact of left quiet spool 2, and the described cavity 22 of the left side underfill of described movable valve plug 4, be to have cavity between the left side of described cavity 22 and movable valve plug 4, the pore 41 on the movable valve plug 4 runs through with described cavity 22 and communicates simultaneously;
Move under the low order end state at movable valve plug 4, described movable valve plug 4 right sides cooperate with the left side plane contact of right quiet spool 3, and the pore 41 on the movable valve plug 4 is communicated with the spout hole 32 of right quiet spool 3 simultaneously.
Because the outer peripheral face and valve body 1 inner peripheral surface of left and right quiet spool 2,3 are smooth structure, therefore, the mode by extruding between above-mentioned left and right quiet spool 2,3 outer peripheral faces and valve body 1 inwall is fixed together.Extruding can be in the following way, on left and right quiet spool 2,3 outer peripheral faces, be provided with one or more cannelure 23,33 respectively in advance, again in the valve body 1 outside application of force, valve body 1 inwall is expressed in the described cannelure 23,33, be convenient to like this valve body 1 and left and right quiet spool 2,3 strong bonded, the cross section of this cannelure 23,33 is good with semicircle, also can rectangle or square.
Be illustrated in figure 2 as second embodiment of the present utility model.
The difference of this embodiment and first embodiment is, it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, these bushing pipe 5 usefulness metal materials are made, and this bushing pipe 5 is fixed together with the mode of described valve body 1 inwall by extruding.
Described left and right quiet spool 2,3 fixed interval are in described bushing pipe 5, and promptly left and right quiet spool 2,3 is fixed with valve body 1 indirectly, and the outer face of each quiet spool 2,3 flushes respectively with the both ends of the surface of described bushing pipe 5.Mode by extruding between described bushing pipe 5 outer peripheral faces and valve body 1 inwall is fixed together, and also is fixed together by the mode of pushing between described left and right quiet spool 2,3 outer peripheral faces and bushing pipe 5 inwalls.Extruding can be in the following way, on left and right quiet spool 2,3 outer peripheral faces, be provided with one or more cannelure 23,33 respectively in advance, again in the valve body 1 outside application of force, bushing pipe 5 inwalls are expressed in the described cannelure 23,33, simultaneously, valve body 1 inwall also can correspondingly be expressed on bushing pipe 5 outer walls, can make like this valve body 1 and left and right quiet spool 2,3 strong bonded, the cross section of this cannelure 23,33 is good with semicircle, also can rectangle or square.
Shown in Fig. 3,4, be the 3rd embodiment of the present utility model.
The difference of itself and first embodiment is, passage in the quiet spool 3 in the described right side axially runs through spout hole 32 and right pore 31 that passes through for cold-producing medium by several, wherein, right pore 31 axially runs through the axle center of right quiet spool 3, described spout hole 32 is a circular hole, but also rectangular opening certainly, the hole of tri-angle-holed or other shape, spout hole 32 has at least two, present embodiment is four, evenly be arranged on right pore 31 around, the aperture of right pore 31 also is Φ 0.8～Φ 3mm, described left pore 21, pore 41 and right pore 31 are aligned on the same axis.
Move under the low order end state at movable valve plug 4, described movable valve plug 4 right sides contact with the left inner face of right quiet spool 3 and cooperate so that the spout hole 32 on the quiet spool 3 in the right side is blocked, and the pore 41 on the movable valve plug 4 communicates with described right pore 31 simultaneously.
Shown in Fig. 5,6, be the 4th embodiment of the present utility model.
The difference of itself and the 3rd embodiment is that it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 5.
As shown in Figure 7, be the 5th embodiment of the present utility model.
The difference of itself and the 3rd embodiment is, be cone match between the left side of described movable valve plug 4 right sides and right quiet spool 3, and the left side of movable valve plug 4 is that the plane cooperates with the right side of left quiet spool 2.
As shown in Figure 8, be the 6th embodiment of the present utility model.
The difference of itself and the 5th embodiment is that it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 5.
As shown in Figure 9, be the 7th embodiment of the present utility model.
The difference of this embodiment and the 5th embodiment is, described movable valve plug 4 left sides have a protuberance 42 that matches with cavity 22 profiles, pore 41 on the movable valve plug 4 runs through described protuberance 42, and the thickness of this protuberance 42 is less than the degree of depth of cavity 22, move under the high order end state at movable valve plug 4, described movable valve plug 4 left sides contact cooperation with the right side of left quiet spool 2, simultaneously described protuberance 42 inserts in the described cavity 22, gapped between protuberance 42 outer ends and cavity 22 inner faces, form described cavity, the pore 41 on the movable valve plug 4 communicates with described cavity 22 simultaneously.Certainly also can be plane contact between the left side of the right side of movable valve plug 4 and right quiet spool 3.
As shown in figure 10, be the 8th embodiment of the present utility model.
The difference of this embodiment and the 7th embodiment is that it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 5.
As shown in figure 11, be the 9th embodiment of the present utility model.
The difference of this embodiment and the 3rd embodiment is, between the right side of the quiet spool 2 in a described left side and the left side of movable valve plug 4 is cone match, the right side that is left quiet spool 2 has a concave cone portion 24, the left side of movable valve plug 4 is with concave cone portion 24 pastes the convex cone portion 43 of joining, and cavity 22 simultaneously is arranged on the bottom of concave cone portion 24.
As shown in figure 12, be the of the present utility model ten embodiment.
The difference of this embodiment and the 9th embodiment is that it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 5.
As shown in figure 13, be the 11 embodiment of the present utility model.
The difference of this embodiment and the 3rd embodiment is that described cavity 22 cross sections are tapered, and the left side of movable valve plug 4 is the plane, and the left side of the right side of movable valve plug 4 and right quiet spool 3 is that plane contact cooperates.
Certainly, the left side of the right side of movable valve plug 4 and right quiet spool 3 is that the conical surface contacts cooperation.
As shown in figure 14, be the 12 embodiment of the present utility model.
The difference of this embodiment and the 11 embodiment is that it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 5.
As shown in figure 15, be the 13 embodiment of the present utility model.
The difference of this embodiment and the 11 embodiment is that the quiet spool 2 in a described left side is made up of two quiet spool monomer 2a, 2b, and adjacent two quiet spool monomer 2a, 2b fits tightly and form complete left quiet spool 2.
The quiet spool 2 in a left side adopts two monomers to be spliced, so the axial length of each monomer is short relatively, processing spout hole or pore are simple relatively on this monomer, also have through experiment and learn, be spliced when quiet spool 2 adopts two or more monomers, can change the restriction effect of throttle pipe, promptly to compare restriction effect different for the quiet spool of its monoblock type with same axial length, make the adaptability of this throttle pipe stronger, the restriction effect of conveniently adjusted throttle pipe.Certainly in fact, the left quiet spool in aforementioned any one embodiment is by all adopting the quiet valve core structure in an aforementioned left side.
As shown in figure 16, be the 14 embodiment of the present utility model.
The difference of this embodiment and the 13 embodiment is that it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 5.
As shown in figure 17, be the 15 embodiment of the present utility model.
The difference of this embodiment and the 13 embodiment is that though the quiet spool in a described left side 2 two quiet spool monomer 2a, 2b form, adjacent two quiet spool monomer 2a, 2b are provided with at interval, and is directly fixing with described tubular valve body 1 respectively.
Certainly in fact, the left quiet spool 2 in aforementioned any one embodiment all can adopt the quiet valve core structure in an aforementioned left side.
As shown in figure 18, be the 16 embodiment of the present utility model.
The difference of this embodiment and the 15 embodiment is that it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 5.
As shown in figure 19, be the 17 embodiment of the present utility model.
The difference of this embodiment and the 15 embodiment is that it is provided with back-up ring 6 between described adjacent two quiet spool monomer 2a, 2b, and back-up ring 6 plays the position-limiting action to two quiet spool monomers.
As shown in figure 20, be the 18 embodiment of the present utility model.
The difference of this embodiment and the 17 embodiment is that it also is provided with a bushing pipe 5 between left and right quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 5.
Certainly we also can suitably improve the structure of the right quiet spool 3 among above-mentioned 18 an embodiment left side, and the passages in the promptly right quiet spool 3 only are right pore, described left pore, pore and right pore to it on same axis.
Operation principle and the process of aforementioned three～18 embodiment are identical:
When cold-producing medium flows into from valve body 1 right-hand member, cold-producing medium flows into from the spout hole 32 and the right pore 31 of the quiet spool in the right side, and promotion movable valve plug 4 moves to left, move under the high order end state at movable valve plug 4, the left side of movable valve plug 4 contacts with the right inner face of left quiet spool 2, at this moment the pore 41 on the movable valve plug 4 is communicated with left pore 21 and cavity 22 on the left quiet spool 2, cold-producing medium can only pass through pore 41 successively, cavity 22 and left pore 21, to play the effect of throttling, in the time of in cold-producing medium flows to cavity 22, cold-producing medium has a process that expands a little suddenly, guarantees the smooth and easy of flow of refrigerant.
When cold-producing medium when valve body 1 left end flows into, cold-producing medium flow in the cavity 22 from the left pore 21 of the quiet spool 2 in a left side, cold-producing medium has a process that expands a little suddenly, produce the power that a promotion movable valve plug 4 that amplifies moves, and promotion movable valve plug 4 moves to right, guarantee the smooth and easy of flow of refrigerant simultaneously, spout hole 31 on the quiet spool 3 blocks with the right side when the right side of movable valve plug 4 contacts with the left inner face of right quiet spool 3, pore 41 on the while movable valve plug 4 is communicated with the right pore 31 on the right quiet spool 3, at this moment, cold-producing medium can only flow through by pore 41 and right pore 31 successively, to play the effect of throttling.
Cold-producing medium from two ends, the left and right sides by the time because the path difference, cold-producing medium is by the length difference of pore, the cold-producing medium flow velocity difference of promptly passing through from two ends, and then realize adapting to refrigeration and heating condition transforms mutually.
And first and second embodiment operation principle and previous embodiment are basic identical, and just cold-producing medium is only by being positioned at the spout hole of position, right quiet spool axle center.
Claims (15)
1, a kind of throttle pipe of household air conditioner, include tubular valve body (1), be interval with the left and right quiet spool (2,3) that is provided with described valve body relative fixed in the valve body (1), in valve body (1), also be provided with a valve body axial slip and be positioned at movable valve plug (4) between the left and right two quiet spools (2,3) relatively; Have in the quiet spool in the described right side (3) and axially run through the passage that passes through for cold-producing medium, have pore (41) in the movable valve plug (4), have left pore (21) in the left quiet spool (2);
It is characterized in that: also have the cavity (22) of a bore greater than left pore (21) diameter on the right side of the quiet spool in a described left side (2), described left pore (21) is connected with cavity (22);
Move under the high order end state at movable valve plug (4), described movable valve plug (4) left side contacts cooperation with the right side of left quiet spool (2), and the described cavity of left side underfill (22) of described and movable valve plug (4), the pore (41) on the movable valve plug (4) communicates with described cavity (22) simultaneously;
Move under the low order end state at movable valve plug (4), described movable valve plug (4) right side contacts cooperation with the left side of right quiet spool (3), simultaneously the pore (41) on the movable valve plug (4) and the channel connection of right quiet spool (3).
2, throttle pipe of household air conditioner according to claim 1 is characterized in that: left pore (21) is only arranged in the quiet spool in a described left side (2), and left pore (21) is one.
3, throttle pipe of household air conditioner according to claim 2 is characterized in that: cooperate for plane contact between the inner face of the left and right sides both ends of the surface of described movable valve plug (4) and left and right quiet spool (2,3).
4, throttle pipe of household air conditioner according to claim 2, it is characterized in that: for plane contact cooperates, contact cooperation for the conical surface between the left side of the right side of this movable valve plug (4) and right quiet spool (3) between the right side of the left side of described movable valve plug (4) and left quiet spool (2).
5, throttle pipe of household air conditioner according to claim 2, it is characterized in that: for the conical surface contacts cooperation, cooperate for plane contact between the left side of the right side of this movable valve plug (4) and right quiet spool (3) between the right side of the left side of described movable valve plug (4) and left quiet spool (2).
6, throttle pipe of household air conditioner according to claim 2 is characterized in that: described cavity (22) cross section is square, circle or taper.
7, throttle pipe of household air conditioner according to claim 1, it is characterized in that: described movable valve plug (4) left side has a protuberance (42) that matches with cavity (22) profile, pore on the movable valve plug (41) runs through described protuberance (42), and the thickness of this protuberance (42) is less than the degree of depth of cavity (22).
8, throttle pipe of household air conditioner according to claim 2, it is characterized in that: the passage in the quiet spool in the described right side (3) axially runs through the spout hole (32) and the right pore (31) that pass through for cold-producing medium by several to be formed, and the right pore (31) of the left pore (21) of the quiet spool in a described left side, the pore (41) of movable valve plug and right quiet spool is aligned on the same axis.
9, throttle pipe of household air conditioner according to claim 2, it is characterized in that: the passage in the quiet spool in the described right side (3) is the spout hole (32) for passing through for cold-producing medium only, and the spout hole (32) of the left pore (21) of the quiet spool in a described left side, the pore (41) of movable valve plug and right quiet spool is aligned on the same axis.
10, throttle pipe of household air conditioner according to claim 2, it is characterized in that: the quiet spool in a described left side (2) is made up of at least two quiet spool monomers (2a, 2b), and adjacent two quiet spool monomers (2a, 2b) fit tightly and form complete left quiet spool (2).
11, throttle pipe of household air conditioner according to claim 2 is characterized in that: the quiet spool in a described left side (2) is made up of at least two quiet spool monomers (2a, 2b), and adjacent two quiet spool monomers (2a, 2b) are provided with at interval.
12, throttle pipe of household air conditioner according to claim 11 is characterized in that: be provided with back-up ring (6) between the described adjacent two quiet spool monomers (2a, 2b).
13, according to the described throttle pipe of household air conditioner of arbitrary claim in the claim 1～12, it is characterized in that: described left and right quiet spool (2,3) directly and valve body (1) inwall fix, be provided with one or more cannelure (23,33) respectively in advance on described left and right quiet spool (2, the 3) outer peripheral face, the inwall of described valve body (1) snaps in the described cannelure (23,33) by extruding.
14, according to the described throttle pipe of household air conditioner of arbitrary claim in the claim 1～12, it is characterized in that: also be provided with a bushing pipe (5) between described left and right quiet spool (2,3) and movable valve plug (4) and valve body (1) inwall, this bushing pipe (5) is fixed with described valve body (1) inwall, described left and right quiet spool (2,3) fixed interval is in described bushing pipe (5), and the outer face of each quiet spool (2,3) flushes with the both ends of the surface of described bushing pipe (5) respectively.
15, throttle pipe of household air conditioner according to claim 14, it is characterized in that: the mode by extruding between described bushing pipe (5) outer peripheral face and valve body (1) inwall is fixed together, also be fixed together between described left and right quiet spool (2,3) outer peripheral face and bushing pipe (5) inwall by the mode of pushing, be provided with one or more cannelure (23,33) respectively in advance on described left and right quiet spool (2, the 3) outer peripheral face, described bushing pipe (5) snaps onto in the described cannelure (23,33) by extruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201654775U CN201297811Y (en) | 2008-09-28 | 2008-09-28 | Throttle pipe for domestic air conditioners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201654775U CN201297811Y (en) | 2008-09-28 | 2008-09-28 | Throttle pipe for domestic air conditioners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297811Y true CN201297811Y (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201654775U Expired - Lifetime CN201297811Y (en) | 2008-09-28 | 2008-09-28 | Throttle pipe for domestic air conditioners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297811Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363674B (en) * | 2008-09-28 | 2010-06-09 | 金仁召 | Domestic air conditioner throttle pipe |
-
2008
- 2008-09-28 CN CNU2008201654775U patent/CN201297811Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363674B (en) * | 2008-09-28 | 2010-06-09 | 金仁召 | Domestic air conditioner throttle pipe |
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Granted publication date: 20090826 Effective date of abandoning: 20080928 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20090826 Effective date of abandoning: 20080928 |