CN102384311B - Electrically-operated valve - Google Patents
Electrically-operated valve Download PDFInfo
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- CN102384311B CN102384311B CN2011101937111A CN201110193711A CN102384311B CN 102384311 B CN102384311 B CN 102384311B CN 2011101937111 A CN2011101937111 A CN 2011101937111A CN 201110193711 A CN201110193711 A CN 201110193711A CN 102384311 B CN102384311 B CN 102384311B
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- adaptor tube
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- 238000005057 refrigeration Methods 0.000 claims description 40
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 abstract 3
- 230000000087 stabilizing effect Effects 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 description 35
- 230000000694 effects Effects 0.000 description 10
- 239000012530 fluid Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical class O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
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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
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
- F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
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- Details Of Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to an electrically-operated valve, for stabilizing the flow of a coolant at the opening of the valve in an electrically operated valve for controlling the flow of the coolant by using a needle valve opening and closing valve opening, in order to inhibit the vibration of a secondary joint pipe thereby reducing the noise. A first valve opening (11) with the inner diameter D1 and the second valve opening (12) with the diameter D2, formed in a shape of a cross section circle in a valve seat component (1), relative to the inner diameter of the secondary joint pipe (32), the D1 is less than D2 and D3 and the D2 is less than the D3. the coolant passing through the gap between the first valve opening (11) and the needle valve (41) flows towards the secondary joint pipe (32). The front end of the needle valve (41) is located at the center of the main body of the second valve opening (12), thereby reducing the flow speed at the second valve opening (12) before arriving the outlet of the second valve opening (12) and the stabilizing the flow of the portion at the valve seat component (1) before arriving the secondary joint pipe.
Description
Technical field
The present invention relates to control the needle valve type mortor operated valve of the flow of refrigeration agent in air conditioner etc., be specifically related to improve the mortor operated valve of the port shape of the relative needle-valve of valve seat.
Background technique
In the past, in refrigeration cycle, from the mortor operated valve of controlling refrigerant flow, produce, often become problem with fluid by the noise accompanied.For example be disclosed in the mortor operated valve in TOHKEMY 2008-232290 communique (patent documentation 1) as the mortor operated valve of taking this type of noise countermeasure.
In addition, as existing mortor operated valve, the structure shown in Figure 10 is for example arranged.This mortor operated valve has the valve casing 3 that forms valve chamber 3A, at the sidepiece of valve casing 3, an adaptor tube (the hand pipe once continues) 31 is installed, and (secondary continue hand pipe) 32 of the secondary adaptor tube being installed in the one-sided end of the axis L of valve chamber 3A direction.In addition, at the interior valve base part 9 that arranges of valve casing 3, on this valve base part 9, being formed with the sectional shape of valve chamber 3A and 32 connections of secondary adaptor tube is circular valve port 91.
Chimeric valve support 34 slidably in the guide hole 33a of support unit 33.Be fixed with the spool 4 that there is needle-valve 41 in end in the underpart of this valve support 34, and valve support 34 coordinates with the underpart of the rotor shaft 53 of stepping motor 5.In addition, form external thread part 53a on rotor shaft 53, this external thread part 53a is combined with the internal thread part 33b screw thread formed on support unit 33.And, by the driving of stepping motor 5, magnet rotor 52 rotations, rotor shaft 53 and spool 4 move on axis L direction, utilize the part of needle-valve 41 that the opening area of valve port 9 is increased and decreased, suppress the flow from an adaptor tube 31 mobile fluid to secondary adaptor tube 32.
Patent documentation 1: TOHKEMY 2008-232290 communique
In the existing mortor operated valve shown in above-mentioned Figure 10, the valve port 91 formed on valve base part 9 as shown in figure 11, is made the shape cylindraceous that the exit opening section from the entrance opening portion of valve port 91 to secondary adaptor tube 32 sides is certain diameter.Therefore, become following state with respect to secondary adaptor tube 32 from the refrigeration agent of the Clearance Flow of needle-valve 41 and valve port 91: the refrigeration agent flowed out from the gap of needle-valve 41 and valve port 91 accelerates to secondary adaptor tube 32 and before arriving exit opening section at the entrance opening portion from valve port 91 this valve port 91.That is, the accelerated length of refrigeration agent increases, and the amplitude that the pressure of refrigeration agent reduces increases.In addition, impact due to the larger eddy current of valve port 91 interior generations, keep the state slowed down hardly to flow out at a high speed in secondary adaptor tube 32, the cavitation produced disappears after arriving secondary adaptor tube 32 interior depths, be easy to be delivered to secondary adaptor tube 32 so impact, at mortor operated valve self, produce large noise.In addition, even the shape of valve port is also same with above-mentioned Figure 11 in the mortor operated valve of patent documentation 1, produce equally noise.
Summary of the invention
The present invention makes for eliminating the problems referred to above, its objective is that the valve port that the improvement valve base part is provided is to reduce the mortor operated valve of noise.
The mortor operated valve of scheme one, be formed with the valve casing of the valve chamber be communicated with adaptor tube, be formed with the sectional shape that described valve chamber and secondary adaptor tube are communicated with and be the valve base part of circular valve port, and with the needle-valve of the coaxial setting of described valve port, by making described needle-valve move and open and close described valve port on axial direction, thereby control the flow of refrigeration agent, this refrigeration agent flows into described valve chamber and flows out to described secondary adaptor tube through described valve port from a described adaptor tube, it is characterized in that: the described valve port that is formed described valve base part by the first valve port and second valve port that is positioned at the inside diameter D 2 of described secondary adaptor tube side of the inside diameter D 1 that is positioned at described valve chamber side, form as follows described valve base part, the i.e. inside diameter D 1 of the first valve port, the inside diameter D 2 of the second valve port, with the pass of the inside diameter D 3 of described secondary adaptor tube be D1<D2<D3.Have, these inside diameter D 1, D2, D3 can form substantially at the path inner face of the inboard that the first valve port, the second valve port and secondary adaptor tube are connected the poor value of ladder again.
The mortor operated valve of scheme two is according to the described mortor operated valve of scheme one, it is characterized in that: be formed with the tapered portion that described the first valve port is connected with described the second valve port on described valve base part.
The mortor operated valve of scheme three is according to the described mortor operated valve of scheme one or two, it is characterized in that: form as follows described valve base part, when described needle-valve is closed described the first valve port, the front end of described needle-valve is positioned at the neutral position of described the second valve port.
The effect of invention
Mortor operated valve according to scheme one, the refrigeration agent flowed out from the gap of the first valve port and needle-valve flows out in the second valve port larger than the first valve port internal diameter, in the second valve port of the valve base part before arriving the secondary adaptor tube, flow velocity is reduced, therefore can make flowing of refrigeration agent stable, thereby the vibration etc. that can suppress the secondary adaptor tube reduce noise.
Mortor operated valve according to scheme two, except the effect of scheme one, the refrigeration agent imitation tapered portion flowed out due to the gap from the first valve port and needle-valve flows to the second valve port, and to the second valve port side, expand between tapered portion and needle-valve, so refrigeration agent is difficult to be attached to tapered portion, can reduce the sound that passes through of refrigeration agent.
Mortor operated valve according to scheme three, except scheme one or two effect, because the front end of needle-valve is positioned at the cardinal principle central part of the second valve port, so can before the outlet that arrives the second valve port, at this second valve port 12, further make flow velocity reduce, can further make flowing of refrigeration agent stable, thereby and the vibration that can suppress the secondary adaptor tube reduce noise.
The accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the mortor operated valve of first embodiment of the invention.
Fig. 2 is that near the pith of valve base part of the mortor operated valve of first embodiment of the invention amplifies longitudinal sectional view.
Fig. 3 is the figure of effect of valve base part of the mortor operated valve of explanation first embodiment of the invention.
Fig. 4 is the longitudinal sectional view of the mortor operated valve of second embodiment of the invention.
Fig. 5 is that near the pith of valve base part of the mortor operated valve of second embodiment of the invention amplifies longitudinal sectional view.
Fig. 6 is the figure of effect of valve base part of the mortor operated valve of explanation second embodiment of the invention.
Fig. 7 means the figure of an example of the air conditioner of the mortor operated valve that uses mode of execution.
Fig. 8 mean about the size of the D1 of the mortor operated valve of first embodiment of the invention and D2 than and noise reduce the actual measurement example of value.
Fig. 9 is the variation of angle [alpha] 3 of tapered portion of mortor operated valve of second embodiment of the invention and the actual measurement example that noise reduces value.
Figure 10 means the figure of an example of existing mortor operated valve.
Figure 11 is the figure of the problem of the existing mortor operated valve of explanation.
Description of reference numerals:
The 1-valve base part, 11-the first valve port, 12-the second valve port, 2-valve base part, 21-the first valve port, 22-the second valve port, the 23-tapered portion, 3-valve casing, 3A-valve chamber, adaptor tube of 31-, 32-secondary adaptor tube, 4-spool, the 41-needle-valve, 6-valve rod, 61-needle-valve, 10-mortor operated valve, L-axis.
Embodiment
Secondly, the mode of execution of mortor operated valve of the present invention is described with reference to accompanying drawing.Fig. 1 is the longitudinal sectional view of the mortor operated valve of the first mode of execution, Fig. 2 is that near the pith of valve base part of the mortor operated valve of the first mode of execution amplifies longitudinal sectional view, Fig. 3 is the figure of effect of valve base part of the mortor operated valve of explanation the first mode of execution, Fig. 4 is the longitudinal sectional view of the mortor operated valve of the second mode of execution, Fig. 5 is that near the pith of valve base part of the mortor operated valve of the second mode of execution amplifies longitudinal sectional view, Fig. 6 is the figure of effect of valve base part of the mortor operated valve of explanation the second mode of execution, Fig. 7 means the figure of an example of the air conditioner of the mortor operated valve that uses mode of execution.Have again, in the second mode of execution, for the key element identical with the first mode of execution and corresponding key element, be marked with same tag to omit the detailed description repeated.
At first, the air conditioner according to Fig. 7, mode of execution related to describes.In Fig. 7, mark 10 is mortor operated valves of first embodiment of the invention or the second mode of execution.In addition, mark 20 is the outdoor heat exchangers that are loaded in outdoor unit 100, and mark 30 is the indoor heat exchangers that are loaded in indoor unit 200, and mark 40 is the flow channel switching valves that form four-way valve, and mark 50 is compressors.Have, mortor operated valve 10, flow channel switching valve 40 and compressor 50 are loaded in outdoor unit 100 again.Mortor operated valve 10, outdoor heat exchanger 20, indoor heat exchanger 30, flow channel switching valve 40 and compressor 50 are connected as shown in figure by conduit respectively, form heat pump type refrigerating circulation.Have, thermal accumulator, pressure transducer, temperature transducer etc. omit diagram again.
The stream of refrigeration cycle is switched to the two-way stream of warm braw pattern and cold wind pattern by flow channel switching valve 40.In the warm braw pattern, as shown in the arrow of solid line in Fig. 7, flowed into the indoor heat exchanger 30 of indoor unit 200 from flow channel switching valve 40 by the refrigeration agent after compressor 50 compressions, the refrigeration agent flowed out from indoor heat exchanger 30 flows into the mortor operated valve 10 of outdoor unit 100 by pipeline a.And refrigeration agent expands in this mortor operated valve, with the sequential loop of outdoor heat exchanger 20, flow channel switching valve 40, compressor 50.In the cold wind pattern, as shown in the arrow of dotted line in Fig. 7, flowed into outdoor heat exchangers 20 by the refrigeration agent after compressor 50 compression from flow channel switching valve 40, the refrigeration agent flowed out from outdoor heat exchanger 20 expands mortor operated valve 10, in pipeline a, flows and in inflow indoor heat exchanger 30.The refrigeration agent that flows into this indoor heat exchanger 30 flows into compressor 50 via flow channel switching valve 40.
Mortor operated valve 10 carries out work as the throttling arrangement of controlling refrigerant flow, and in the warm braw pattern, outdoor heat exchanger 20 is as vaporizer performance function, and indoor heat exchanger 30, as condenser performance function, carries out indoor heating.In addition, in the cold wind pattern, outdoor heat exchanger 20 is as condenser performance function, and indoor heat exchanger 30 is as vaporizer performance function, carries out indoor cooling.
Here, in the warm braw pattern, flow into the refrigeration agent liquefaction of an adaptor tube 31 of mortor operated valve 10 in pipeline a, liquid refrigerant is full of in pipeline a.Therefore, because the refrigeration agent of mortor operated valve 10 produces vibration by grade, this vibrates a by the road and is delivered to indoor unit 200 sides, in indoor unit 200, produces noise.So as described later, the mortor operated valve of each mode of execution 10 is by the improvement valve port, thereby reduce in warm braw pattern refrigeration agent, flows into mortor operated valve 10 main bodys from adaptor tube 31 and flow out refrigeration agent refrigerant condition by sound etc. from secondary adaptor tube 32 again.
Secondly, according to Fig. 1 and Fig. 2, the mortor operated valve 10 of the first mode of execution is described.This mortor operated valve 10 has valve casing 3, forms the valve chamber 3A of barrel cylinder shape (Yen cylinder シ リ Application ダ shape) in valve casing 3.In addition, the adaptor tube (the hand pipe once continues) 31 that side is communicated with valve chamber 3A from the side is installed on valve casing 3, and secondary adaptor tube (secondary continue hand pipe) 32 is installed in the one-sided end of the axis L of valve chamber 3A direction.Have again, on valve casing 3 and in the valve chamber 3A of secondary adaptor tube 32 side, dispose valve base part 1.And being formed with the sectional shape of valve chamber 3A and 32 connections of secondary adaptor tube on valve base part 1 is circular the first valve port 11 and the second valve port 12.
On the top of valve casing 3, support unit 33 is installed.Be formed with on axis L direction long guide hole 33a on support unit 33, chimeric slidably on axis L direction on this guide hole 33a have a valve support 34 cylindraceous.Valve support 34 is installed coaxially with valve chamber 3A, is fixed with the spool 4 that has needle-valve 41 in end in the underpart of this valve support 34.In addition, in valve support 34, can on axis L direction, be provided with movably spring bracket 35, between spring bracket 35 and spool 4, with the state that applies ordinance load, compression helical spring 36 is installed.
In the upper end of valve casing 3 by airtight shells 51 that is fixed with stepping motor 5 such as welding.Rotatably be provided with peripheral part is magnetized to multipole magnet rotor 52 in shell 51, on this magnet rotor 52, be fixed with rotor shaft 53.The upper end portion of rotor shaft 53 rotatably is entrenched in the guide portion cylindraceous 54 hung down from the top of shell 51.In addition, in the periphery of shell 51, dispose stator coil 55, by this stator coil 55 is given and pulse signal, thereby magnet rotor 52 rotates accordingly with this umber of pulse.And, with the rotor shaft 53 of magnet rotor 52 one because the rotation of this magnet rotor 52 is rotated.Have again, in the periphery of guide portion 54, be provided with the rotation stopper mechanism 56. to magnet rotor 52
The upper end portion of valve support 34 coordinates with the underpart of the rotor shaft 53 of stepping motor 5, and valve support 34 is supported under the state rotatably hung by rotor shaft 53.In addition, be formed with external thread part 53a on rotor shaft 53, this hero screw section 53a is combined with the internal thread part 33b screw thread that is formed at support unit 33.
By above structure, rotor shaft 53 is along with being rotated on axis L direction of magnet rotor 52 moved.Thereby move and spool 4 and valve support 34 1 are coexisted on axis L direction move by the axis L direction with this rotation rotor shaft 53 together.And spool 4 utilizes the part of needle-valve 41 to increase and decrease the opening area of the first valve port 11, controls the flow from an adaptor tube 31 mobile fluid to secondary adaptor tube 32.
The first valve port 11 of valve base part 1 and the second valve port 12 are drum, and as shown in Figure 2, the inside diameter D 1 of the first valve port 11 is sizes consistent with the periphery of needle-valve 41.In addition, the inside diameter D 2 of the second valve port 12 is sizes larger than the inside diameter D of the first valve port 11 1, and becomes the size less than the inside diameter D of secondary adaptor tube 32 3.Have again, the length L 2 of the second valve port 12 becomes the size larger than the length L of the first valve port 11 1, and set as follows the length L 2 of this second valve port 12, under the state of at needle-valve 41, the first valve port 11 being closed, the front end of this needle-valve 41 is positioned at the cardinal principle middle position of the second valve port 12.Also can suitably set the angle [alpha] 2 of needle-valve 41.Have again, for the condition of these sizes, with the together narration in the back of the second mode of execution.
Fig. 3 is the figure of effect of needle-valve 41, the first valve port 11 and second valve port 12 of explanation the first mode of execution.The refrigeration agent in the gap by needle-valve 41 and the first valve port 11 flows to secondary adaptor tube 32 by the second valve port 12.Now, there is the impact of the particularly front end that is subject to needle-valve 41 and become the situation that unstable liquid flows.But, because the front end of needle-valve 41 is positioned at the cardinal principle central part of the second valve port 12, so can before the outlet that arrives the second valve port 12, at this second valve port 12, flow velocity be reduced.That is, the part of the valve base part 1 before refrigeration agent arrives secondary adaptor tube 32 can make flowing of refrigeration agent stable, can suppress the vibration of secondary adaptor tube 32 to reduce noise.
In the mortor operated valve 10 of the second mode of execution shown in Fig. 4, the needle-valve 61 corresponding with the needle-valve 41 of the first mode of execution is positioned at the front end of valve rod 6, and this valve rod 6 is removable on axis L direction with respect to rotor shaft 53.In addition, support unit 33 is formed with the access 331,332 be communicated with valve chamber 3A.And, be arranged on the underpart of support unit 33 at the valve base part 2 of valve casing 3 interior configurations, on this valve base part 2, being formed with the sectional shape of valve chamber 3A and 32 connections of secondary adaptor tube is circular the first valve port 21 and the second valve port 22, and forms tapered portion 23 between this first valve port 21 and the second valve port 22.
Be formed with internal thread 33b and its tapped hole at support unit 33 center, and be formed with sliding eye 33c cylindraceous.And, configuration rotor shaft 53 in the tapped hole of this internal thread 33b and sliding eye 33c, the outside thread 53a of rotor shaft 53 is combined with the internal thread 33b of support unit 33 screw thread.
Be formed with bottom longitudinal hole 531 and top longitudinal hole 532 on rotor shaft 53, in the mode that runs through bottom longitudinal hole 531, configure valve rod 6.This valve rod 6 possesses needle-valve 61 in its lower end.At the interior configuration helical spring 71 of top longitudinal hole 532, in the upper end part of top longitudinal hole 532, dispose accessory 72.Accessory 72 consists of lip part 72a and insertion part 72b, forms annular knurl around the 72b of insertion part.And, insertion part 72b is pressed in top longitudinal hole 532, by the lip part 533 clamping magnetic rotors 52 of lip part 72a and rotor shaft 53.Like this, magnet rotor 52 and rotor shaft 53 is chimeric fixing mutually, and the active force that utilizes helical spring 71 by valve rod 6 to valve base part 2 side reinforcings.
By above formation, rotor shaft 53 follows the axis L direction that is rotated in of magnet rotor 52 to move.Valve rod 6 moves because the axis L direction of the rotor shaft 53 of following with this rotation moves in axis L direction, increases and decreases the opening area of the first valve port 21 by the part of needle-valve 61, controls the flow that flows to the fluid of secondary adaptor tube 32 from adaptor tube 31.
The first valve port 21 and second valve port 22 of valve base part 2 are drums, and as shown in Figure 5, the inside diameter D 1 of the first valve port 21 is sizes consistent with the periphery of needle-valve 61.In addition, the inside diameter D 2 of the second valve port 22 is sizes larger than the inside diameter D of the first valve port 21 1, and, become the size less than the inside diameter D of secondary adaptor tube 32 3.Have again, the length L 2 of the second valve port 22 becomes the size larger than the length L of the first valve port 21 1, and set as follows the length L 2 of this second valve port 22, under the state of at needle-valve 61, the first valve port 21 being closed, the front end of this needle-valve 61 is positioned at the cardinal principle middle position of the second valve port 22.Have again, also suitably set the opening angle α 3 of tapered portion 23, angle [alpha] 2, needle-valve 61 and the tapered portion 23 angulation α 1 of needle-valve 61.
Fig. 6 is the figure of effect of needle-valve 61, the first valve port 21, the second valve port 22 and the tapered portion 23 of explanation the second mode of execution.As shown in Fig. 6 (A), the refrigeration agent in the gap by needle-valve 61 and the first valve port 21 flows to secondary adaptor tube 32 by tapered portion 23 and the second valve port 22.Now, there is the impact of the particularly front end that is subject to needle-valve 61 and become the situation that unstable liquid flows.But, because the front end of needle-valve 61 is positioned at the cardinal principle central part of the second valve port 22, so can before the outlet that arrives the second valve port 22, at this second valve port 22, flow velocity be reduced.That is, the part of the valve base part 2 before refrigeration agent arrives secondary adaptor tube 32 can make flowing of refrigeration agent stable, can suppress the vibration of secondary adaptor tube 32 to reduce noise.In addition, imitate tapered portion 23 from the refrigeration agent of the Clearance Flow of the first valve port 21 and needle-valve 61 flows the second valve port 22.Have, the gap of tapered portion 23 and needle-valve 61 is expanded in the second valve port 22 sides at once again, so refrigeration agent is difficult to be attached on tapered portion 23, can reduce the sound that passes through of refrigeration agent.
Like this, although the second valve port 22 becomes the length that the front end of needle-valve 61 is positioned at the cardinal principle central part of the second valve port 22, but, valve base part 2 ' as shown in Fig. 6 (B), if the internal diameter of the second valve port 22 ' is identical with the internal diameter of secondary adaptor tube 32, the length of this second valve port 22 ' is shorter, and the front end of needle-valve 61 is positioned at the position that approaches secondary adaptor tube 32 and has problems.That is, the front end at this needle-valve 61 is easy to produce the pressure drop part, the unsettled mobile former state ground inflow secondary adaptor tube 32 that the impact of this front end produces.Therefore, easily produce the vibration etc. of secondary adaptor tube 32.This situation can be avoided in the second mode of execution (and first mode of execution).
Here, the mortor operated valve 10 that the first mode of execution and the second mode of execution relate to is applicable to the refrigeration cycle that the pressure of refrigeration agent is following condition.Pressure in adaptor tube 31 are that 2.8～3.4 (MPa: MPa), the pressure in secondary adaptor tube 32 are 1.2～1.8 (MPa).And, for this type of condition, the size of the each several part of the valve base part 1 of the first mode of execution and the valve base part 2 of the second mode of execution is set as meeting following condition, like this, can obtain the effect that above-mentioned noise reduces.
The angle [alpha] 3 of tapered portion 23 is set as 3≤150 ° of 90 °≤α ... (1) scope.Have again, the occasion of the first mode of execution, the angle of this tapered portion is 180 °.
The angle [alpha] 2 of needle- valve 41,61 is set as 2≤20 ° of 4 °≤α ... (2) scope.
The inside diameter D 1 of the first valve port 11,21 is set as 1mm≤D1≤2.6mm ... (3) scope.
The length L 1 of the first valve port 11,21 is set as 0mm<L1<0.8mm ... (4) scope.
The inside diameter D 1 of the inside diameter D 2 of the second valve port 12,22 and the first valve port 11,12 is set for as follows
The length L 1 of the length L 2 of the second valve port 12,22 and the first valve port 11,21 is set for as follows.
8≤L2/L1≤18…(6)。
The inside diameter D 3 of the secondary adaptor tube 32 of the first mode of execution is set as D3=5.0mm ... (7).
The inside diameter D 3 of the secondary adaptor tube 32 of the second mode of execution is set as D3=6.3mm ... (8).
Fig. 8 mean about the size of the D1 of the mortor operated valve of the first mode of execution and D2 than and noise reduce the actual measurement example of value.Operating condition is that the pressure in adaptor tube 31 is that 2.8～3.4 (MPa), secondary adaptor tube 32 interior pressure are 1.2～1.8 (MPa).The flow direction of refrigeration agent is the direction from adaptor tube 31 to secondary adaptor tube 32.L1＝0.5mm。Make D1=1.0mm with respect to D3=5.0mm, D1=1.8mm, make D1=2.6mm with respect to D3=6.3mm, means with respect to these values, condition expression (5) when making the D2 variation
noise reduce value.As we know from the figure, noise step-down in the scope (1.0mm～3.8mm) of the formula of satisfying condition (5).Have again,
it is the situation of D1=D2.
Fig. 9 is the variation of angle [alpha] 3 of tapered portion 23 of mortor operated valve of the second mode of execution and the actual measurement example that noise reduces value.Operating condition is that the pressure in adaptor tube 31 is that 2.8～3.4 (MPa), secondary adaptor tube 32 interior pressure are 1.2～1.8 (MPa).The flow direction of refrigeration agent is the direction from adaptor tube 31 to secondary adaptor tube 32.L1＝0.5mm。Make D1=1.8mm with respect to D3=5.0mm, with respect to this D1, set and make condition expression (5)
the value D2 that is 1.0mm, 2.4mm, 3.6mm, mean to reduce value with respect to the noise of angle of taper α 3.As we know from the figure, noise step-down in angle of taper α 3 satisfies condition the scope (90 °～150 °) of formula (1).Have, α 3=180 ° is the situation of the first mode of execution again.
Claims (2)
1. a mortor operated valve possesses: the valve casing that is formed with the valve chamber be communicated with adaptor tube; Be formed with the sectional shape that described valve chamber and secondary adaptor tube are communicated with and be the valve base part of circular valve port; And with the needle-valve of the coaxial setting of described valve port, by making described needle-valve move and open and close described valve port on axial direction, thereby control the flow of refrigeration agent, this refrigeration agent flows into described valve chamber and flows out to described secondary adaptor tube through described valve port from a described adaptor tube, it is characterized in that:
Formed the described valve port of described valve base part by the first valve port of the inside diameter D 1 that is positioned at described valve chamber side and the second valve port of being positioned at the inside diameter D 2 of described secondary adaptor tube side,
Form as follows described valve base part, the pass of the inside diameter D 3 of the inside diameter D 2 of the inside diameter D 1 of the first valve port, the second valve port and described secondary adaptor tube be D1<D2<D3,
Be formed with the tapered portion that the edge of the edge of the outlet of described the first valve port and the entrance of described the second valve port is connected on described valve base part, the angle [alpha] 3 of this tapered portion is set as the scope of 3≤150 ° of 90 °≤α.
2. mortor operated valve according to claim 1 is characterized in that:
Form as follows described valve base part, when described needle-valve is closed described the first valve port, the front end of described needle-valve is positioned at the neutral position of described the second valve port.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010187924A JP5480753B2 (en) | 2010-08-25 | 2010-08-25 | Motorized valve |
| JP2010-187924 | 2010-08-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102384311A CN102384311A (en) | 2012-03-21 |
| CN102384311B true CN102384311B (en) | 2013-12-11 |
Family
ID=45823995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101937111A Active CN102384311B (en) | 2010-08-25 | 2011-07-05 | Electrically-operated valve |
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| Country | Link |
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| JP (1) | JP5480753B2 (en) |
| CN (1) | CN102384311B (en) |
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| JP5677349B2 (en) * | 2012-03-27 | 2015-02-25 | 株式会社鷺宮製作所 | Motorized valve |
| JP5696093B2 (en) * | 2012-05-10 | 2015-04-08 | 株式会社鷺宮製作所 | Motorized valve |
| CN103388939B (en) * | 2012-05-11 | 2016-06-01 | 浙江三花股份有限公司 | A kind of electric expansion valve |
| CN103388694B (en) | 2012-05-11 | 2016-07-27 | 浙江三花股份有限公司 | A kind of electric expansion valve |
| WO2013170542A1 (en) | 2012-05-18 | 2013-11-21 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN103453699B (en) * | 2012-05-29 | 2016-08-10 | 浙江三花股份有限公司 | A kind of electric expansion valve |
| CN103512288B (en) | 2012-06-20 | 2016-07-06 | 浙江三花股份有限公司 | A kind of electric expansion valve |
| CN103574062B (en) * | 2012-08-06 | 2016-10-05 | 珠海格力电器股份有限公司 | Electric expansion valve |
| US9541315B2 (en) | 2012-08-10 | 2017-01-10 | Zhejiang Sanhua Co., Ltd. | Electronic expanding valve |
| JP6218029B2 (en) * | 2013-11-29 | 2017-10-25 | 株式会社テージーケー | Stepping motor driven control valve |
| JP5944884B2 (en) * | 2013-12-27 | 2016-07-05 | 株式会社鷺宮製作所 | On-off valve |
| CN104110522B (en) * | 2014-07-04 | 2017-02-08 | 珠海格力电器股份有限公司 | Throttling structure and pressure drop device |
| CN106322861B (en) * | 2015-06-29 | 2021-09-28 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| JP6504252B2 (en) * | 2015-08-03 | 2019-04-24 | 株式会社デンソー | Integrated valve |
| JP6639876B2 (en) * | 2015-11-17 | 2020-02-05 | 株式会社不二工機 | Flow control valve |
| JP6479648B2 (en) * | 2015-12-24 | 2019-03-06 | 株式会社鷺宮製作所 | Motorized valve |
| JP6692213B2 (en) * | 2016-05-23 | 2020-05-13 | 株式会社不二工機 | Flow control valve |
| JP2018115743A (en) * | 2017-01-20 | 2018-07-26 | 株式会社鷺宮製作所 | Motor-operated valve and refrigeration cycle system |
| JP6903453B2 (en) * | 2017-03-10 | 2021-07-14 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| JP6726124B2 (en) * | 2017-03-23 | 2020-07-22 | 株式会社鷺宮製作所 | Motorized valve and refrigeration cycle system using the same |
| CN109520184A (en) * | 2017-09-18 | 2019-03-26 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| JP7244998B2 (en) * | 2018-04-04 | 2023-03-23 | 株式会社鷺宮製作所 | electric valve |
| JP7220315B2 (en) * | 2018-04-20 | 2023-02-09 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| CN110836562A (en) * | 2018-08-17 | 2020-02-25 | 浙江盾安禾田金属有限公司 | Electronic expansion valve and air conditioning system using same |
| JP7299178B2 (en) * | 2020-02-04 | 2023-06-27 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| JP7299177B2 (en) * | 2020-02-04 | 2023-06-27 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| JP7211390B2 (en) * | 2020-03-30 | 2023-01-24 | 豊田合成株式会社 | fuel shutoff valve |
| JP7264548B2 (en) * | 2020-07-02 | 2023-04-25 | 株式会社不二工機 | flow control valve |
| WO2022057421A1 (en) * | 2020-09-18 | 2022-03-24 | 广东美的制冷设备有限公司 | Electronic expansion valve, refrigerant circulation pipeline, and air conditioner system |
| JP7061651B2 (en) * | 2020-10-13 | 2022-04-28 | 株式会社鷺宮製作所 | Solenoid valve and refrigeration cycle system |
| JP7438549B2 (en) * | 2021-09-24 | 2024-02-27 | 株式会社不二工機 | electric valve |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5480753B2 (en) | 2014-04-23 |
| CN102384311A (en) | 2012-03-21 |
| JP2012047213A (en) | 2012-03-08 |
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