CN201322486Y - Home-use air conditioner throttle pipe - Google Patents

Abstract

The utility model relates to a home-use air conditioner throttle pipe, which comprises a pipe type valve body (1). At least two static valve cores and a dynamic valve core (4) with a capillary hole (41) are arranged inside the valve body (1). The utility model is characterized in that the dynamic valve core (4) is provided with at least two axial direction penetrating overflowing holes (42) arranged on the periphery of the capillary hole (41), one channel of at least one of the static valve cores adjacent to the dynamic valve core is merely one axial direction penetrating capillary hole channel, and simultaneously the capillary hole channel and the capillary hole (4) on the dynamic valve core are aligned to the same axis. When the dynamic valve is under a middle state, both the capillary hole and the overflowing hole on the dynamic valve core can provide channels for freezing mediums to pass through, when the dynamic valve core is contacted with the static valve core with merely the capillary hole, the overflowing hole on the dynamic valve core is blocked, only the capillary hole remains to provide a channel for freezing mediums to pass through, and a flow rate of the freezing medium passing through the dynamic valve core is massively decreased, thereby a large flow rate variation of the throttle pipe is achieved during a moving process of the dynamic valve core.

Description

A kind of throttle pipe of household air conditioner

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 choke valve the Chinese utility model patent " bi-directional secondary choke valve " of ZL200720107950.X (notification number is CN201027999Y) has disclosed, comprise valve body, an end sealing and fixing has valve seat in the valve body, valve seat comprises valve opening and slideway, be provided with movable spool in the slideway, have axial aperture on the spool, valve seat is provided with several through flow holes, other end sealing and fixing has fixed spool in the described valve body, and fixed spool has axial aperture.

Motion block in above-mentioned each throttle pipe (also being movable valve plug) has only a pore that runs through the axle center, corresponding, the pore of piece (also being quiet spool) on it of deciding that is positioned at these motion block both sides also runs through its axle center, there is such defective in above-mentioned each structure, be that the flow speed variable quantity by motion block is very little from two ends, the left and right sides for cold-producing medium, so the restriction effect that two ends, the left and right sides are flow through changes little, and air-conditioning is in refrigeration with heat and need the changes in flow rate contrast bigger in the process, and therefore the restriction effect of existing various throttle pipes also can be further improved.

The utility model content

Technical problem to be solved in the utility model is that a kind of movable valve plug big throttle pipe of household air conditioner of refrigerant flow variable quantity by movable valve plug in moving process is provided at above-mentioned prior art present situation, and this throttle pipe can improve the result of use on air-conditioning.

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, at least be provided with two quiet spools that are provided with this valve body relative fixed in the valve body, and the movable valve plug of valve body axial slip relatively, this movable valve plug is arranged between two adjacent quiet spools; Described movable valve plug has a pore that axially runs through, and has in described each quiet spool axially to run through the passage that passes through for cold-producing medium, and refrigerant fluid flows into from an end of valve body, passes each quiet spool and movable valve plug, and flows out from the other end of valve body; It is characterized in that: described movable valve plug also has at least two spout holes that axially run through, described spout hole is distributed in the pore periphery, in described two quiet spools adjacent with this movable valve plug, the passage that has a quiet spool at least only is the capillary porosity duct that axially runs through, and this capillary porosity duct is one, simultaneously, the pore on this capillary porosity duct and the movable valve plug is aligned on the same axis.

The left and right sides both ends of the surface of above-mentioned movable valve plug and to be adjacent between the inner face of two quiet spools be that plane contact cooperates, plane contact cooperates the structure that can simplify movable valve plug and quiet spool.Certainly, the end face of movable valve plug and each quiet spool cooperates, for plane contact cooperates, cooperate for conical surface contact between the corresponding inner face of another end face of this movable valve plug and another the quiet spool that is adjacent between the corresponding inner face of an end face of described movable valve plug and a quiet spool that is adjacent.

In above-mentioned two quiet spools adjacent with this movable valve plug, the passage of one of them quiet spool only is the capillary porosity duct that axially runs through, and this capillary porosity duct is one, and simultaneously, the pore on this capillary porosity duct and the movable valve plug is aligned on the same axis; The passage of another quiet spool only is the spout hole passage that axially runs through, and this spout hole passage is one, in that the quiet spool of movable valve plug and this is identical when contacting, pore on the described movable valve plug and spout hole all with this spout hole channel connection.This structure can make movable valve plug changes in flow rate when contacting with left and right quiet spool big.

Above-mentioned quiet spool has only two, be respectively first quiet spool that is positioned at the movable valve plug left side and the second quiet spool that is positioned at the movable valve plug right side, the passage of the first quiet spool is first capillary porosity duct for axially running through only, and the passage of the second quiet spool is the second spout hole passage for axially running through only.Quiet spool adopts two to be the quiet spool number that conventional throttle pipe adopted.

Above-mentioned quiet spool has three, be followed successively by the first quiet spool, the second quiet spool and the 3rd quiet spool from left to right, these three quiet spools are intervally installed, described movable valve plug is between the first quiet spool and the second quiet spool, wherein, the passage of the first quiet spool is first capillary porosity duct for axially running through only, the passage of the second quiet spool is the second spout hole passage for axially running through only, the passage of the 3rd quiet spool is the 3rd capillary porosity duct that axially runs through only also, and the 3rd capillary porosity duct is one.

Above-mentioned quiet spool has five, is followed successively by the 5th quiet spool, the first quiet spool, the second quiet spool, the 3rd quiet spool and the 4th quiet spool from left to right, and these five quiet valve core chambers are every setting, and described movable valve plug is between the first quiet spool and the second quiet spool; Wherein, the passage of the first quiet spool, the 5th quiet spool only is respectively first capillary porosity duct that axially runs through, the 5th capillary porosity duct, and described first capillary porosity duct, the 5th capillary porosity duct are aligned on the same axis; The passage of the second quiet spool is the second spout hole passage for axially running through only; The passage of the 3rd quiet spool, the 4th quiet spool only is respectively the 3rd capillary porosity duct that axially runs through, the 4th capillary porosity duct, and described the 3rd capillary porosity duct, the 4th capillary porosity duct are aligned on the same axis.

Above-mentioned quiet spool has five, is followed successively by the 5th quiet spool, the first quiet spool, the second quiet spool, the 3rd quiet spool and the 4th quiet spool from left to right, and described movable valve plug is between the first quiet spool and the second quiet spool; Wherein, the first, five quiet spools fit tightly setting, the passage of the first quiet spool, the 5th quiet spool only is respectively first capillary porosity duct that axially runs through, the 5th capillary porosity duct, and described first capillary porosity duct, the 5th capillary porosity duct are aligned on the same axis; The passage of the second quiet spool is the second spout hole passage for axially running through only; The 3rd quiet spool, the 4th quiet spool fit tightly setting, the passage of the 3rd quiet spool, the 4th quiet spool only is respectively the 3rd capillary porosity duct that axially runs through, the 4th capillary porosity duct, and described the 3rd capillary porosity duct, the 4th capillary porosity duct are aligned on the same axis.

Adopt a plurality of quiet valve core structures, the axial length of single quiet spool is shortened relatively, processing spout hole or pore are simple relatively on this monomer, also have through experiment and learn, when the form that adopts a plurality of quiet spool splicings, can on each quiet spool, offer the passage that different structure passes through for cold-producing medium, can change the restriction effect of throttle pipe, it is different to be that the quiet spool of its monoblock type with same axial length is compared restriction effect, make the adaptability of this throttle pipe stronger, the restriction effect of conveniently adjusted throttle pipe.

Above-mentioned quiet spool has only two, be respectively first quiet spool that is positioned at the movable valve plug left side and the second quiet spool that is positioned at the movable valve plug right side, the passage of the first quiet spool is first capillary porosity duct for axially running through only, the passage of the second quiet spool is second capillary porosity duct for axially running through only, and described first capillary porosity duct, pore and second capillary porosity duct are aligned on the same axis.

General air-conditioning throttle pipe, described each quiet spool directly and valve interior wall fix.Because the outer peripheral face and the valve body inner peripheral surface of each quiet spool are smooth structure, therefore, be fixed together to good in mode between quiet spool outer peripheral face of above-mentioned each and the valve interior wall by extruding, the mode of extruding has the simple advantage in location.Bigger because of each quiet spool wall thickness again, and the valve body tube wall is thinner, still can on each 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 the quiet spool of above-mentioned each and movable valve plug and the valve interior wall, this bushing pipe and described valve interior wall are fixed, described each quiet valve core chamber is in being fixed in described bushing pipe, and the outer face of two quiet spools of outermost end flushes respectively with the both ends of the surface of described bushing pipe.Increasing the bushing pipe structure can make the installation location of each quiet spool 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 each quiet spool into then from the bushing pipe two ends, only need to keep the outer face of outermost end 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 each quiet spool outer peripheral face is level and smooth, also be fixed together between described each quiet spool outer peripheral face and the bushing pipe inwall by the mode of pushing.Bigger because of each quiet spool wall thickness again, and the tube wall of valve body and bushing pipe is thinner, still can on each 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: the movable valve plug that this throttle pipe adopted not only has pore, also have the spout hole that axially run through of at least two cloth at the pore periphery, in described two quiet spools adjacent with this movable valve plug, the passage that has a quiet spool at least only is the capillary porosity duct that axially runs through, therefore working as movable valve plug is positioned under the intermediateness, pore on the movable valve plug and spout hole all can pass through for cold-producing medium, so the refrigerant flow by movable valve plug is bigger, and when movable valve plug contacts with the quiet spool that has only pore, spout hole on the movable valve plug is by shutoff, only surplus pore wherein can be for the cold-producing medium circulation, refrigerant flow by movable valve plug reduces significantly, so this throttle pipe changes in flow rate in the movable valve plug moving process is big.

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 structure cutaway view of the 4th embodiment of the utility model;

Fig. 5 is the structure cutaway view of the 5th embodiment of the utility model;

Fig. 6 is the structure cutaway view of the 6th embodiment of the utility model;

Fig. 7 is the structure cutaway view of the 7th embodiment of the utility model;

Fig. 8 is the structure cutaway view of the 8th embodiment of the utility model;

Fig. 9 is the structure cutaway view of the 9th embodiment of the utility model;

Figure 10 is the structure cutaway view of the 10th 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 quiet spools that directly fixedly install with described valve body 1 in the valve body 1, be followed successively by first and second quiet spool 2,3 from left to right respectively, in valve body 1, also be provided with valve body 1 axial slip and the movable valve plug 4 between first and second quiet spool 2,3 relatively, distance between first and second quiet spool 2,3 is greater than the axial dimension of movable valve plug 4, guaranteeing that movable valve plug 4 can slippage between first and second quiet spool 2,3, 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 first and second quiet spool 2,3.Described each quiet spool 2,3 and movable valve plug 4 can adopt copper, aluminium, steel or plastics to make, and each quiet spool 2,3 and movable valve plug 4 be with valve body 1 inner chamber match cylindric.

Wherein, the outer peripheral face of described movable valve plug 4 contacts with valve body 1 inner wall sealing, and described movable valve plug 4 has a pore 41 that axially runs through its axle center, and two or more spout holes that axially run through 42, and described each spout hole 42 is distributed in around the pore 41.The cross section of described spout hole 42 is a circular hole, and the spout hole passage ratio of circular hole is easier to processing.Certainly cross section also can be circular hole, square hole, tri-angle-holed, polygonal hole, mounting hole or crescent moon hole.

The described first quiet spool 2 only has first capillary porosity duct 21 that axially runs through, and this first capillary porosity duct 21 is one, and simultaneously, this first capillary porosity duct 21 is aligned on the same axis with pore 41 on the movable valve plug 4.

It is one that the described second quiet spool 3 only has the second spout hole passage, 31, the second spout hole passages 31 that axially run through, and the pore 41 on this second spout hole passage 31 and the movable valve plug 4 is aligned on the same axis.

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 the first quiet spool 2, the right side of the described first quiet spool 2 blocks the spout hole on the movable valve plug 42, and the pore 41 on the movable valve plug 4 communicates with described first capillary porosity duct 21 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 the second quiet spool 3, and pore 41 on the described movable valve plug 4 and spout hole 42 all are communicated with this second spout hole passage 31.

The aperture of described first capillary porosity duct 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 first above-mentioned capillary porosity duct 21, the aperture of pore 41 are Φ 0.8～Φ 3mm.Pore then restriction effect less than normal is good more in this scope.

Because the outer peripheral face and valve body 1 inner peripheral surface of first and second quiet spool 2,3 are smooth structure, therefore, the mode by extruding between quiet spool 2,3 outer peripheral faces of above-mentioned each and valve body 1 inwall is fixed together.Extruding can be in the following way, on each quiet spool 2,3 outer peripheral face, be provided with one or more cannelure 22,33 respectively in advance, again in the valve body 1 outside application of force, valve body 1 inwall is expressed in the described cannelure 22,33, be convenient to like this valve body 1 and first and second quiet spool 2,3 strong bonded, the cross section of this cannelure 22,33 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 8 between first and second quiet spool 2,3 and movable valve plug 4 and valve body 1 inwall, these bushing pipe 8 usefulness metal materials are made, and this bushing pipe 8 is fixed together with the mode of described valve body 1 inwall by extruding.

Described each quiet spool 2,3 fixed interval are in described bushing pipe 8, and promptly each quiet spool 2,3 is fixed with valve body 1 indirectly, and the outer face of first and second quiet spool 2,3 flushes respectively with the both ends of the surface of described bushing pipe 8.Mode by extruding between described bushing pipe 8 outer peripheral faces and valve body 1 inwall is fixed together, and also is fixed together by the mode of pushing between described each quiet spool 2,3 outer peripheral face and bushing pipe 8 inwalls.Extruding can be in the following way, on each quiet spool 2,3 outer peripheral face, be provided with one or more cannelure 22,33 respectively in advance, again in the valve body 1 outside application of force, bushing pipe 6 inwalls are expressed in the described cannelure 22,33, simultaneously, valve body 1 inwall also can correspondingly be expressed on bushing pipe 6 outer walls, can make like this valve body 1 and each quiet spool 2,3 strong bonded, the cross section of this cannelure 22,33 is good with semicircle, also can rectangle or square.

The operation principle of aforementioned one～two embodiment and process are identical:

When cold-producing medium flows into from valve body 1 left end, cold-producing medium flows into from first capillary porosity duct 21 of the first quiet spool 2 that is positioned at movable valve plug 4 left ends, and promotion movable valve plug 4 moves to right, in movable valve plug 4 moving process, cold-producing medium is by the pore on the movable valve plug 4 41 and each spout hole 42, move under the low order end state at movable valve plug 4, pore 41 on the movable valve plug 4 and spout hole 42 all are communicated with the second spout hole passage 31 on the second quiet spool 3 simultaneously, cold-producing medium flows out from the right-hand member of valve body 1, to play the effect of throttling.

When cold-producing medium when valve body 1 right-hand member flows into, cold-producing medium flows into from the second spout hole passage 31 of the second quiet spool 3 that is positioned at movable valve plug 4 right-hand members, and promotion movable valve plug 4 moves to left, in movable valve plug 4 moving process, cold-producing medium is by the pore on the movable valve plug 4 41 and each spout hole 42, move under the high order end state at movable valve plug 4, pore 41 on the movable valve plug 4 is communicated with first capillary porosity duct 21 on the first quiet spool 2, the right side of the first quiet spool 2 blocks each spout hole 42 on the movable valve plug 4 simultaneously, cold-producing medium can only pass through the first spout hole passage 31 of the second quiet spool 3 successively, first capillary porosity duct 21 of the pore 41 on the movable valve plug 4 and the first quiet spool 3 is to play the effect of throttling.

Can be by changing the axial length of quiet spool, make the capillary porosity duct length difference on each quiet spool, cold-producing medium is when two ends, the left and right sides are passed through like this, the length difference of total pore that cold-producing medium passes through, the cold-producing medium flow velocity difference of promptly passing through from two ends, and then realize that adaptation refrigeration and heating condition transform mutually.

As shown in Figure 3, be the 3rd embodiment of the present utility model.

The difference of itself and first embodiment is, described second quiet spool 3 passages are second capillary porosity duct 32 for axially running through only, and this second capillary porosity duct 32 is one, and simultaneously, the pore 41 on this second capillary porosity duct 32 and the movable valve plug 4 is aligned on the same axis.

As shown in Figure 4, 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 8 between first and second 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 8.

The operation principle of this third and fourth embodiment and first and second embodiment are basic identical, just it is second capillary porosity ducts 32 by the second quiet spool 3, we can be different with the axial length of the first quiet spool 2 by the second quiet spool 3, make first and second capillary porosity duct 21,32 length differences of first and second quiet spool 2,3, realize that adaptation refrigeration and heating condition transform mutually.

As shown in Figure 5, be the 5th embodiment of the present utility model.

The difference of itself and first embodiment is, described quiet spool has three, and promptly increasing has the 3rd quiet spool 5, is provided with one or more cannelure 52 in advance on the 3rd quiet spool 5 outer peripheral faces, the 3rd quiet spool 5 is positioned at the right side of the second quiet spool 3, and second and third quiet spool 3,5 is provided with at interval.

The described the 3rd quiet spool 5 only has the 3rd capillary porosity duct 51 that axially runs through, and the 3rd capillary porosity duct 51 is one, and simultaneously, the 3rd capillary porosity duct 51 is aligned on the same axis with pore 41 on the movable valve plug 4.

As shown in Figure 6, be the 6th embodiment of the present utility model.

The difference of itself and the 5th embodiment is, it also is provided with a bushing pipe 8 between first, second and third quiet spool 2,3,5 and movable valve plug 4 and valve body 1 inwall, on the 3rd quiet spool 5 outer peripheral faces, be provided with one or more cannelure 52 in advance, but the concrete set-up mode reference example two of bushing pipe 8.

As shown in Figure 7, be the 7th embodiment of the present utility model.

The difference of itself and the 5th embodiment is, described quiet spool has five, the 4th quiet spool 6 and the 5th quiet spool 7 have promptly been increased, the 5th, four quiet spools 7,, be provided with one or more cannelure 72,62 respectively in advance on 6 outer peripheral faces, wherein the 5th quiet spool 7 is positioned at the left side of the first quiet spool 2, the 4th quiet spool 6 is positioned at the right side of the 3rd quiet spool 5, generally speaking, the first, five quiet spools 2,7 are positioned at the left side of movable valve plug and are provided with at interval, second and third, four quiet spools 3,5,6 are positioned at the right side of movable valve plug 4 and are provided with at interval.

The described the 5th quiet spool 7 only has the 5th capillary porosity duct 71 that axially runs through, and the 5th capillary porosity duct 71 is one, and simultaneously, the 5th capillary porosity duct 71 and first capillary porosity duct 21 are aligned on the same axis.

The described the 4th quiet spool 6 only has the 4th capillary porosity duct 61 that axially runs through, and the 4th capillary porosity duct 61 is one, and simultaneously, the 4th capillary porosity duct 61 and the 3rd capillary porosity duct 51 are aligned on the same axis.

As shown in Figure 8, be the 8th embodiment of the present utility model.

The difference of itself and the 7th embodiment is, it also is provided with a bushing pipe 8 between the 5th, one, two, three, four quiet spools 7,2,3,5,6 and movable valve plug 4 and valve body 1 inwall, on the 5th, three, four quiet spool 7,5,6 outer peripheral faces, be provided with one or more cannelure 72,22,33,52,62 respectively in advance, but the concrete set-up mode reference example two of bushing pipe 8.

As shown in Figure 9, be the 9th embodiment of the present utility model.

The difference of itself and the 7th embodiment is that described first, five quiet spools 2,7 fit tightly setting each other, and described third and fourth quiet spool 5,6 fits tightly setting each other.

As shown in figure 10, be the of the present utility model ten embodiment.

The difference of itself and the 7th embodiment is, it also is provided with a bushing pipe 8 between the 5th, one, two, three, four quiet spools 7,2,3,5,6 and movable valve plug 4 and valve body 1 inwall, on the 5th, three, four quiet spool 7,5,6 outer peripheral faces, be provided with one or more cannelure 72,22,33,52,62 respectively in advance, but the concrete set-up mode reference example two of bushing pipe 8.

The operation principle of embodiment 5～10 and embodiment 1～2 operation principle are basic identical, just are not repeated at this.

Claims (10)

1, a kind of throttle pipe of household air conditioner, include tubular valve body (1), at least be provided with two quiet spools that are provided with this valve body (1) relative fixed in the valve body (1), and the movable valve plug (4) of valve body (1) axial slip relatively, this movable valve plug (4) is arranged between two adjacent quiet spools; Described movable valve plug (4) has a pore that axially runs through (41), have in described each quiet spool and axially run through the passage that passes through for cold-producing medium, refrigerant fluid flows into from an end of valve body (1), passes each quiet spool and movable valve plug (4), and flows out from the other end of valve body (1); It is characterized in that: described movable valve plug (4) also has at least two spout holes that axially run through (42), described spout hole (42) is distributed in pore (41) periphery, in described two quiet spools adjacent with this movable valve plug, the passage that has a quiet spool at least only is the capillary porosity duct that axially runs through, and this capillary porosity duct is one, simultaneously, the pore (41) on this capillary porosity duct and the movable valve plug is aligned on the same axis.

2, throttle pipe of household air conditioner according to claim 1 is characterized in that: the both ends of the surface of described movable valve plug (4) and to be adjacent between the inner face of two quiet spools be that plane contact cooperates.

3, throttle pipe of household air conditioner according to claim 1, it is characterized in that: in described two quiet spools adjacent with this movable valve plug, the passage of one of them quiet spool is the capillary porosity duct for axially running through only, and this capillary porosity duct is one, simultaneously, the pore on this capillary porosity duct and the movable valve plug is aligned on the same axis; The passage of another quiet spool only is the spout hole passage that axially runs through, and this spout hole passage is one, in that the quiet spool of movable valve plug and this is identical when contacting, pore on the described movable valve plug and spout hole all with this spout hole channel connection.

4, throttle pipe of household air conditioner according to claim 3, it is characterized in that: described quiet spool has only two, be respectively first quiet spool (2) that is positioned at movable valve plug (4) left side and the second quiet spool (3) that is positioned at movable valve plug (4) right side, the passage of the first quiet spool (2) is first capillary porosity duct (21) for axially running through only, and the passage of the second quiet spool (3) is the second spout hole passage (31) for axially running through only.

5, throttle pipe of household air conditioner according to claim 3, it is characterized in that: described quiet spool has three, be followed successively by the first quiet spool (2) from left to right, the second quiet spool (3) and the 3rd quiet spool (5), these three quiet spools are intervally installed, described movable valve plug (4) is positioned between the first quiet spool (2) and the second quiet spool (3), wherein, the passage of the first quiet spool (2) is first capillary porosity duct (21) for axially running through only, the passage of the second quiet spool (3) is the second spout hole passage (31) for axially running through only, the passage of the 3rd quiet spool (5) is the 3rd capillary porosity duct (51) that axially runs through only also, and the 3rd capillary porosity duct (51) is one.

6, throttle pipe of household air conditioner according to claim 3, it is characterized in that: described quiet spool has five, be followed successively by the 5th quiet spool (7), the first quiet spool (2), the second quiet spool (3), the 3rd quiet spool (5) and the 4th quiet spool (6) from left to right, these five quiet valve core chambers are every setting, and described movable valve plug (4) is positioned between the first quiet spool (2) and the second quiet spool (3); Wherein, the passage of the first quiet spool (2), the 5th quiet spool (7) only is respectively first capillary porosity duct (21) that axially runs through, the 5th capillary porosity duct (71), and described first capillary porosity duct (21), five capillary porosity ducts (71) are aligned on the same axis; The passage of the second quiet spool (3) is the second spout hole passage (31) for axially running through only; The passage of the 3rd quiet spool (5), the 4th quiet spool (6) only is respectively the 3rd capillary porosity duct (51) that axially runs through, four capillary porosity ducts (61), and described the 3rd capillary porosity duct (51), four capillary porosity ducts (61) are aligned on the same axis.

7, throttle pipe of household air conditioner according to claim 3, it is characterized in that: described quiet spool has five, be followed successively by the 5th quiet spool (7), the first quiet spool (2), the second quiet spool (3), the 3rd quiet spool (5) and the 4th quiet spool (6) from left to right, described movable valve plug (4) is positioned between the first quiet spool (2) and the second quiet spool (3); Wherein, the first, five quiet spools (2,7) fit tightly setting, the passage of the first quiet spool (2), the 5th quiet spool (7) only is respectively first capillary porosity duct (21) that axially runs through, the 5th capillary porosity duct (71), and described first capillary porosity duct (21), the 5th capillary porosity duct (71) are aligned on the same axis; The passage of the second quiet spool (3) is the second spout hole passage (31) for axially running through only; The 3rd quiet spool (5), the 4th quiet spool (6) fit tightly setting, the passage of the 3rd quiet spool (5), the 4th quiet spool (6) only is respectively the 3rd capillary porosity duct (51) that axially runs through, the 4th capillary porosity duct (61), and described the 3rd capillary porosity duct (51), the 4th capillary porosity duct (61) are aligned on the same axis.

8, throttle pipe of household air conditioner according to claim 1, it is characterized in that: described quiet spool has only two, be respectively first quiet spool (2) that is positioned at movable valve plug (4) left side and the second quiet spool (3) that is positioned at movable valve plug (1) right side, the passage of the first quiet spool (2) is first capillary porosity duct (21) for axially running through only, the passage of the second quiet spool (3) is second capillary porosity duct (32) for axially running through only, and described first capillary porosity duct (21), pore (41) and second capillary porosity duct (32) are aligned on the same axis.

9, according to the described throttle pipe of household air conditioner of arbitrary claim in the claim 1～8, it is characterized in that: described each quiet spool directly and valve body (1) inwall fix, be provided with one or more cannelure respectively in advance on described each quiet spool outer peripheral face, the inwall of described valve body (1) snaps in the described cannelure by extruding.

10, according to the described throttle pipe of household air conditioner of arbitrary claim in the claim 1～8, it is characterized in that: also be provided with a bushing pipe (8) between described each quiet spool and movable valve plug (4) and valve body (1) inwall, mode by extruding between outer peripheral face of this bushing pipe (8) and valve body (1) inwall is fixed together, also be fixed together between described each quiet spool outer peripheral face and bushing pipe (8) inwall by the mode of pushing, on each quiet spool outer peripheral face, be provided with one or more cannelure respectively in advance, described bushing pipe (8) snaps onto in the described cannelure by extruding, and the outer face of two quiet spools of outermost end flushes respectively with the both ends of the surface of described bushing pipe (8).

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