CN100420889C - Electric flow control valve - Google Patents
Electric flow control valve Download PDFInfo
- Publication number
- CN100420889C CN100420889C CNB2004100089134A CN200410008913A CN100420889C CN 100420889 C CN100420889 C CN 100420889C CN B2004100089134 A CNB2004100089134 A CN B2004100089134A CN 200410008913 A CN200410008913 A CN 200410008913A CN 100420889 C CN100420889 C CN 100420889C
- Authority
- CN
- China
- Prior art keywords
- limiter
- flow control
- control valve
- electric flow
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000001503 joint Anatomy 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 230000002285 radioactive effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Air Conditioning Control Device (AREA)
Abstract
To improve a structure for restricting a rising position of a rotor of an electric flow rate control valve having the rotor inside of a sealed case and a coil outside of the sealed case. This electric flow rate control valve 100 has the rotor 120 in the sealed case 110. The rotor 120 is fixed to a sleeve 122. The sleeve 122 is engaged with a fixed screw part, and the rotor 120 is vertically moved in accompany with the rotation. When the rotor 120 is raised to the limit, a stopper 152 mounted on the rotor 120 is brought into contact with a stop plate 200 mounted inside of the sealed case 110 to restrict the rotation.
Description
Technical field
The present invention relates to electric flow control valve, particularly the electric flow control valve of the flow of the control refrigerant fluid that uses in the freeze cycle of refrigeration etc.
Background technique
This existing electric flow control valve that is used for freeze cycle is made of the valve body that has valve seat and valve body in valve chamber, the motor that is configured in the stepper motor etc. on this valve body top, described motor is by closed shell cylindraceous, be configured in the stator coil in this closed shell outside and the rotor that is configured in the housing inner room of described closed shell constitutes.This rotor is formed by the sleeve of for example aluminum of all sides in being configured in and the magnet that is configured in for example ferrite etc. of outer circumferential side.
In addition, the bar-shaped valve shaft that passes the length of described valve chamber in the described closed shell extends, and an end of this valve shaft is fixed on the sleeve of described rotor slidably, simultaneously fixed valve body on the other end.The sleeve of the described aluminum of described rotor, by in interior week, female thread being set, simultaneously be fixed on the top of described valve body and be provided with in periphery on the fixed guide of stainless steel of external screw thread in its lower end, be threaded the sleeve of the described aluminum of rotatably support by described female thread and described external screw thread.
The electric flow control valve of described structure by excitation is carried out in described stator coil energising, makes described rotor rotation.Because all female threads are threaded with the periphery external screw thread of described fixed guide in it, so this rotor moves up and down by its rotation.
Valve shaft is fixed on the described rotor slidably, so by moving up and down of described rotor, described valve shaft also moves up and down, and by adjusting valve body fixing on this valve shaft lower end its stream gap with respect to valve seat, regulates the flow by the refrigeration agent of described electric flow control valve.
The concrete structure of existing electric flow control valve like this is disclosed in the patent documentation 1.Fig. 6 represents this existing electric flow control valve, the valve body 11 that is formed by materials such as brass is mounted with the motor 30 of stepper motor etc. on top, have the tubing connection portion 12,13 of thread cutting in its outside, be furnished with the opening portion 18 of screw thread Fixing plug 19 simultaneously in the bottom.The top of the connector 19 of described valve body 11 constitutes valve chamber 15, in this valve chamber 15, valve body 17 and valve seat 21 is disposed in same axle center mode.Described valve body 17 is fixed on the valve shaft 20, and described valve body 21 screw threads are fixed on the described valve body 11.
In described tubing connection portion 12, break-through sets into oral-lateral path 12a, and in described tubing connection portion 13, break-through sets out oral-lateral path 13a simultaneously, two path 12a, 13a are connected to described valve chamber 15, are furnished with filter 12b, 13b respectively in described two paths.
Described valve shaft 20, the intermediate portion slidably earth's axis prop up on the part 11a of the top of described valve body 11, and the top part 20a with this valve shaft 20 is inserted in the described motor 30 simultaneously.
The closed shell cylindraceous 31 that described motor 30 is made of the plate of the nonmagnetic material on the described top part 11a that is fixed on described valve body 11, be configured in the stator coil 32 in these closed shell 31 outsides and the rotor 33 that is configured among the housing inner room 31a of described closed shell 31 constitutes.This rotor 33 is formed by the sleeve 34 of the stainless steel of all sides in being configured in and the ferrite lattice 39 that is configured in outer circumferential side, by the 32a that connects up electrical signal is offered described stator coil 32 from the outside of described motor 30.
In addition, the described sleeve 34 of described rotor 33 and ferrite lattice 39 usefulness Bonds bonding is fixed its chimeric joining portion, fixes by the toothed fast pulley 44 shown in being pressed at an upper portion thereof simultaneously.In addition, toothed fast pulley 44 is formed by the elastic material of spring material etc., and inboard a plurality of tooth elasticity are connected on the periphery of sleeve 34.Sleeve 34 is to be made by the high stainless steel of hardness, so the angle of inclination of a plurality of teeth is big, it is big that elasticity connects power, and adhesive strength is also big.
Described closed shell 31 is made of lower cover 31b and seal casinghousing 31c, on described lower cover 31b (valve body 11), fixedly connected full cut-off limiter 35, to be docked on the outer circumferential face of described full cut-off limiter 35 at the valve restriction pin 36 that closes that can regulate overhang ground, the underpart of the described sleeve 34 of described rotor 33 screw thread is installed, that limits described rotor 33 closes valve decline limit.In the upper end portion of described sleeve 34, open valve restriction pin 37, be threaded thereon to its overhang of can regulate, when described valve body 17 standard-sized sheets, dock the stop component 38 on the described seal casinghousing 31c, that limits described rotor 33 opens the valve ceiling.
In addition, in the part 11a of the top of described valve body 11, fixed with described valve shaft 20 concentrics and be inserted in the fixed guide 40 of hollow tubular of the stainless steel of this valve shaft 20 slidably.External screw thread 40a is set on the periphery of this fixed guide 40, and the while is provided with female thread 34b on the interior week of the central part of described sleeve 34, and described external screw thread 40a is threaded with described female thread 34b.
Prolong upward from described valve body 11, connect in the tube of described fixed guide 40, and the top part 20a that extends to the valve shaft 20 of top connects the hole at center of the connecting wall 34a on the top be located in described sleeve 34, its protruding terminus is encircled 41 fixedly connected by C, between the inner washer 42 of the connecting wall of section portion and described sleeve between the described valve shaft 20, be provided with valve body 17 is being closed the damping spring 43 of energizing on the valve direction simultaneously.
The described stator coil 32 of the described motor 30 of the existing electric flow control valve 10 of Gou Chenging is by from electricity (pulse) the signal excitation of outside the time as described above, and described rotor 33 rotates established amount according to described electrical signal amount.This rotor 33 is threaded with its threaded joints (female thread 34b, external screw thread 40a) on described fixed guide 40, so described this rotor 33 moves on prescribed direction up and down by its rotation, fixing described valve shaft 20 is moved on the direction of stipulating up and down equally, described valve body 17 changes it at interval with respect to described valve body 21, controls the flow of the refrigeration agent of being controlled by described electric flow control valve 10 corresponding to the amount of the electrical signal that this described stator coil 32 is provided.
In above-mentioned existing electric flow control valve, sleeve 34 rises, and when valve body 17 moves to the standard-sized sheet direction, adopts the valve restriction pin 37 of opening of rotor 33 to dock with the stop component 38 that housing 31c goes up setting, regulation rotor 33 open the rise structure of spacing position of valve.
But, stop component 38 is for example made by stainless steel, has elasticity, open under valve restriction pin 37 and the situation that docks the side of stop component 38 no problem, if but open the bottom surface of the top of valve restriction pin 37 with extruding attitude butt joint stop component 38, then stop component 38 with open valve restriction pin 37 and fixedly connected, produce rotor 33 and can not close the uncomfortable situation of rotating on the valve direction.
Therefore, for solving above-mentioned unaccommodated problem, the claimant proposes the invention of record in patent documentation 2.
Patent documentation 1 spy opens flat 10-89521 communique
Patent documentation 2 spies open the 2002-357277 communique
Summary of the invention
The objective of the invention is to, a kind of electric flow control valve is provided, further improve the invention of record in the patent documentation 2, the pin top that aforesaid claimant proposes is with the bottom surface of extruding attitude butt joint stop component, then stop component is fixedlyed connected by friction with pin, can prevent that rotor from can not close the unfavorable condition of rotating on the valve direction.
In order to address the above problem, the present invention adopts following proposal.
The described electric flow control valve of a first aspect of the present invention has: the valve body that valve body is arranged in the valve chamber, and the motor that is fixed on this valve body top, described motor has closed shell, be configured in the stator coil in this closed shell outside, and be configured in rotor in the housing inner room of this closed shell inboard, and described valve body is connected with described rotor with valve shaft, it is characterized in that, has the limiter that is installed on the rotor top relative with described closed shell inboard, inboard at the top of described closed shell, the stop board of being furnished with this limiter of butt joint, described stop board is the disk shape of counter-rotating, upper base face at stop board is formed with a plurality of elongate opening portions, and the opening of this opening portion along the circumferential direction turns over a default angle and forms.
According to such feature, because opening portion is elongated, thus the receiving portion can guarantee drawing the time, and can reduce the contact segment of limiter, and prevent to produce abrasion powder etc., be shaped easily simultaneously.
The described electric flow control valve of a second aspect of the present invention is characterized in that, in the described electric flow control valve of a first aspect of the present invention, described limiter is formed by the elastic plate that the spring steel material constitutes.
According to such feature, can further improve the durability of limiter.
The described electric flow control valve of a third aspect of the present invention, it is characterized in that, in the described electric flow control valve of a second aspect of the present invention, form the par in the upper end portion of described limiter, this par forms another default angle upward with respect to facing of limiter parts.
The described electric flow control valve of a fourth aspect of the present invention is characterized in that, in the described electric flow control valve of a third aspect of the present invention, makes the limiter par be 0～20 ° towards the top.
According to the feature of such a third aspect of the present invention or the described electric flow control valve of a fourth aspect of the present invention, reliably and swimmingly carry out the separation (combination and disengaging) of limiter with respect to stop board.
According to such feature, can reduce the wearing and tearing that limiter slides and causes.
The described electric flow control valve of a fifth aspect of the present invention is characterized in that, makes the limiter par be 20 ° towards the top.
According to such feature, can improve rigidity, the formability of stop board, the abrasion resistance of mold.
The described electric flow control valve of a sixth aspect of the present invention is characterized in that, the limiter surface of contact of the upper end of described limiter and described stop board is passing through on the radioactive rays of rotor axis.
According to such feature, two parts (limiter and stop board) contact with face by face, can improve durability.
The described electric flow control valve of a seventh aspect of the present invention, it is characterized in that, in the described electric flow control valve of a sixth aspect of the present invention, plate thickness by making described stop board is bigger than the pitch of fixed guide threaded joint portion, and the contact finger of described stop board and described limiter is fixed on separately the end face.
According to such feature, can improve the durability of described stop board and described limiter.
The described electric flow control valve of a eighth aspect of the present invention is characterized in that, in the described electric flow control valve of a first aspect of the present invention, the opening portion quantity of described stop board is 4 or 8.
According to such feature, can reduce the rotation angle of the rotor of limiter when stopping, making stop position stable, reduce the abnormal operation pulsation.
Can understand from above explanation, electric flow control valve of the present invention is ceiling position, the limiter to installing on the rotor of regulation rotor, and be fixed in the closed shell and the structure of docking the stop board of limiter is improved, so that the ceiling position of restrict rotor, it is fixedly connected in mated condition to prevent both, so can improve the reliability of the action of electric flow control valve.
Description of drawings
Fig. 1 represents the structural drawing (a) and the upper surface figure (b) of top structure of the closed shell of electric flow control valve of the present invention, and the upper surface figure of state is cut the closed shell top of Fig. 1 (a) midway in Fig. 1 (b) expression.
Fig. 2 represents structural drawing (a) and the planimetric map (b) seen from the right side of Fig. 1, and in addition, the upper surface figure of state is cut the closed shell top of Fig. 2 (a) midway in Fig. 2 (b) expression.
Fig. 3 represents the planimetric map (a) and the sectional view (b) of stop board.The C-C of Fig. 3 (b) presentation graphs 3 (a) cut to.
Fig. 4 is explanatory drawing (a) and (b), (c) of limiter parts.
Fig. 5 is the planimetric map (a) of another routine limiter parts, and front elevation (b).
Fig. 6 is the explanatory drawing of existing electric flow control valve.
Symbol description: 10 (existing) electric flow control valve; 11 valve bodies; 11a top part; 12,13 tubing connection portion; 12a inlet side path; 13a outlet side path; 12b, 13b filter; 15 valve chambers; 17 valve bodies; 18 opening portions; 19 connectors; 20 valve shafts; 20a top part; 21 valve bodies; 30 motor; 31 closed shells; 31a housing inner room; The 31b lower cover; The 31c housing; 32 stator coils; The 32a wiring; 33 rotors; 34 sleeves; The 34a connecting wall; The 34b external screw thread; 35 full cut-off limiters; 36 close valve restriction pin; 37 open valve restriction pin; 38 stop components; 39 ferrite lattices; 40 fixed guides; The 40a external screw thread; The 41C ring; 42 inboard pads; 43 damping springs; 44 band tooth fast pulleys; 100 electric flow control valves; 110 closed shells; 112 inside protrusions portions; 114 tops; 120 rotors; 122 sleeves; 130 disc springs; 150 limiting parts; 152 limiters; 154 pars; 160C type fast pulley; 170 limiting parts (other examples); 172 limiters; 174 pars; 200 stop boards; 210 opening portions; The 210a edge part.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.Fig. 1 and Fig. 2 are the figure of major component of the electric flow control valve 100 of expression present embodiment, same with existing electric flow control valve shown in Figure 6, the superstructure of the rotor 120 that is made of sleeve and magnet is shown, basic structure is identical with existing electric flow control valve shown in Figure 6 with effect, in Fig. 1 and Fig. 2, owing to just assembled the superstructure difference of the rotor of limiter, so above-mentioned rotor only is shown.In addition, Fig. 1 represents the structural drawing (a) and the upper surface figure (b) of top 114 structures of the closed shell of electric flow control valve, and the upper surface figure of state is cut the closed shell top 114 of Fig. 1 (a) midway in Fig. 1 (b) expression.And Fig. 2 represents structural drawing (a) and the planimetric map (b) of the electric flow control valve of the structural drawing observed from the right side of Fig. 1, and in addition, Fig. 2 (b) represents the upper surface figure of state that the top 114 of Fig. 2 (a) is cut midway.
Fig. 3 is the planimetric map (a) and the sectional view (b) of stop board.In addition, the C-C cross section of Fig. 3 (b) presentation graphs 3 (a).And Fig. 4 (a), Fig. 4 are explanatory drawing (a) and (b), (c) of limiter parts.In Fig. 1 (a) and Fig. 2 (a), the slightly hemispherical of central part protuberance formed on the top 114 of closed shell 110 cylindraceous.
Shown in Fig. 1 (a) and Fig. 2 (a), the top at the center of the sleeve 122 of formation rotor 120 is outstanding, and disc spring 130 is entrenched in this sleeve 122.On disc spring 130, the limiter parts 150 of ring-type overlap, and by C type fast pulley 160, are fixedly connected on the top of sleeve 122.Limiter parts 150 are made by the sheet metal of elastic material, and its part is lateral bending Qu Liqi upwards, forms limiter 152.In addition, the upper end portion of limiter 152 forms the par 154 parallel with the face of limiter parts 150.
To shown in Fig. 4 (c), above-mentioned limiter parts 150 have the roughly plane shape of ring-type as Fig. 4 (a), form the curved part of limiter 152 usefulness on a part.That is, limiter 152 right angles are erected, shown in Fig. 4 (c), the end forms par 154 after the bending thereon.These limiter parts 150 are made by the rubber-like metal sheet, and limiter 152 also has flexible.
That is, in order to improve memory and durability, this limiter 152 uses spring steel material, for example SUS304-CSP.In addition, for example be about 0.3～0.35mm, can improve intensity and memory by the plate thickness that makes this limiter 152.
On the other hand, stop board 200 is combined in the inboard at closed shell 110 tops 114.This stop board 200 is the disk shape of counter-rotating, along the circumferential direction forms for example 4 opening portions 210 thereon on the bottom surface.This stop board 200 is made by sheet metal, and about the about 1mm of plate thickness, above-mentioned opening portion 210 is special shown in Fig. 3 (a), on the sense of rotation of limiter 152, forms elongated crooked ditch shape along same circumference.And, dock the rotation of restrict rotor for the edge part 210a limiter of opening portion 210 in the mode of line contact.Limiter 152 210a of abutting edge portion in the above-mentioned stop board 200 can carry out the line way of contact when docking with limiter 152 and form the radioactive rays direction of stop board 200 (in the embodiments of figure 3, for).In addition, suitably select the number of opening portion 210,, then can reduce the rotation angle of the rotor of limiter 152 when stopping, making stop position stable if for example be 8.In addition, each opening portion 210 of described stop board 200 reached respectively on the track of limiter 152 approximately reach 80 ° more than 60 °, in the illustrated embodiment and form, thereby can reduce the wearing and tearing that the slip of limiter 152 causes.
To the insertion in closed shell 110 tops 114 of above-mentioned stop board 200 is to be fixed in the closed shell by the inside protrusions portion 112 in formation such as closed shell 110 middle punch processing.This inside protrusions portion 112 is provided with for example 4 on circumference, it also is used to the fixing of the coil component installed on the outside of closed shell.
In said structure, if rotor 120 rotates on valve opening position, then limiter 152 rises on together while rotating with rotor 120, if rotor 120 rises to the ceiling position, then the par 154 of limiter 152 is outstanding in the opening portion 210 of stop board 200, is combined on the edge part 210a.Promptly, in the time of below the 154 contact stop boards 200 of the par of limiter 152, limiter 152 is the state that is extruded because of its elasticity, its par 154 is in the slip underneath of stop board 200, when arriving the opening portion 210 of stop board 200, because of elasticity erects, be combined on the edge part 210a of opening portion 210.
If rotor 120 is closing rotation (de-rotation) on the valve direction, then limiter 152 leaves from the edge part 210a of the opening portion 210 of stop board 200, moves to the below of stop board 200.At this moment, when limiter 152 and stop board 200 generation interference, limiter 152 is crooked because of its elasticity, and par 154 is avoided interfering in the slip underneath of stop board 200.
According to said structure, the sliding distance below the stop board 200 of the limiter 152 when reducing the moving up of limiter 152 improves durability.In addition, by reducing the width of opening portion 210, can improve rigidity, the formability of stop board 200, the abrasion resistance of mold.In addition, bigger by the plate thickness that makes described stop board 200 than pitch (female thread 34b and external screw thread 40a), the contact finger of described stop board and described limiter is fixed on separately the end face, can improve the durability of described stop board 200 and described limiter 152.
Below, another example of limiter parts 150 shown in Figure 5.Fig. 5 (a) is its planimetric map, and Fig. 5 (b) is its front elevation.Limiter parts 170 have the roughly plane shape of ring-type, form the curved part of limiter 172 usefulness on a part.Shown in Fig. 5 (b), limiter 172 tilts about 30 ° to erect liter with respect to sense of rotation, form par 174 thereon in the end, this par 174 forms roughly 0～20 ° of scope, is preferably the angle that makes progress about 20 ° with respect to the face (reference level) of limiter parts 170, combines with opening portion 210 easily and can improve restrictor function.These limiter parts 170 usefulness rubber-like metal sheets are made, and limiter 172 also has flexible.In addition, above-mentioned " tilting about 30 ° " be embodiment just, other angle, for example also can about 45 °.
Another routine limiter parts 170 similarly use with embodiment's limiter parts 150, but it is different with the above embodiments, another example is that 0.4～0.6mm is below contact stop board 200 time by the plate thickness about 30 ° of tilting, move down easily, get final product and move angle is little down, even deform repeatedly, also be difficult to take place the metal fatigue of raw material, have the effect of the durability that improves limiter parts 170.In addition, in the time of below limiter parts 170 contact stop boards 200, divide only in the contact, have the effect of the durability that improves stop board 200.In addition, can suitably select the tilt angle with respect to limiter parts 170 of par 174.
Claims (8)
1. electric flow control valve, has the valve body that valve body is arranged in valve chamber, and the motor that is fixed on this valve body top, described motor has closed shell, be configured in the stator coil in this closed shell outside, and be configured in rotor in the housing inner room of this closed shell inboard, and described valve body is connected with described rotor with valve shaft, it is characterized in that, has the limiter that is installed on the rotor top relative with described closed shell inboard, inboard at the top of described closed shell, the stop board of being furnished with this limiter of butt joint, described stop board is the disk shape of counter-rotating, upper base face at stop board is formed with a plurality of elongate opening portions, and the opening of this opening portion along the circumferential direction turns over a default angle and forms.
2. electric flow control valve according to claim 1 is characterized in that described limiter is formed by the elastic plate that the spring steel material constitutes.
3. electric flow control valve according to claim 2 is characterized in that, forms the par in the upper end portion of described limiter, and this par forms another default angle towards the top.
4. electric flow control valve according to claim 3 is characterized in that, described another default angle is 0～20 °.
5. electric flow control valve according to claim 4 is characterized in that, described another default angle is 20 °.
6. electric flow control valve according to claim 1 is characterized in that, the upper end of described limiter contact with described stop board and the limiter surface of contact that forms by on the radioactive rays of rotor axis.
7. electric flow control valve according to claim 6 is characterized in that, the pitch of the thickness ratio fixed guide threaded joints by described stop board is set is big, and the contact finger of described stop board and described limiter is fixed on separately the end face.
8. electric flow control valve according to claim 1 is characterized in that, the opening portion quantity of described stop board is 4 or 8.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-150161 | 2003-05-28 | ||
| JP2003150161 | 2003-05-28 | ||
| JP2003150161A JP2004353721A (en) | 2003-05-28 | 2003-05-28 | Electric flow rate control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1573190A CN1573190A (en) | 2005-02-02 |
| CN100420889C true CN100420889C (en) | 2008-09-24 |
Family
ID=34046044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100089134A Expired - Fee Related CN100420889C (en) | 2003-05-28 | 2004-03-15 | Electric flow control valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2004353721A (en) |
| KR (1) | KR101046792B1 (en) |
| CN (1) | CN100420889C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007010014A (en) * | 2005-06-29 | 2007-01-18 | Tgk Co Ltd | Electric flow rate control valve |
| JP2007032664A (en) * | 2005-07-26 | 2007-02-08 | Fuji Koki Corp | Motor operated flow control valve |
| JP5022120B2 (en) * | 2007-07-03 | 2012-09-12 | 株式会社不二工機 | Motorized valves for air conditioning systems |
| JP5474403B2 (en) * | 2009-05-20 | 2014-04-16 | 三洋電機株式会社 | Refrigerant shunt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089521A (en) * | 1996-09-13 | 1998-04-10 | Fuji Koki:Kk | Electric flow control valve |
| JPH10169821A (en) * | 1996-12-12 | 1998-06-26 | Pacific Ind Co Ltd | Stopper structure of motor-operated valve |
| JPH10205638A (en) * | 1997-01-24 | 1998-08-04 | Fuji Koki Corp | Electrically driven flow rate control valve |
| JP2000249250A (en) * | 1999-02-25 | 2000-09-12 | Yamatake Corp | Adjusting valve operating apparatus |
| JP2001304445A (en) * | 2000-04-20 | 2001-10-31 | Saginomiya Seisakusho Inc | Motor-driven control valve and its assembling method |
| JP2002357277A (en) * | 2001-03-29 | 2002-12-13 | Fuji Koki Corp | Electric flow rate control valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003185302A (en) * | 2001-10-10 | 2003-07-03 | Fuji Koki Corp | Motor-operated valve |
| KR100497531B1 (en) * | 2002-10-07 | 2005-07-01 | 예해금 | Magnetic adsorber for conveying iron material |
-
2003
- 2003-05-28 JP JP2003150161A patent/JP2004353721A/en active Pending
-
2004
- 2004-02-27 KR KR1020040013539A patent/KR101046792B1/en active IP Right Grant
- 2004-03-15 CN CNB2004100089134A patent/CN100420889C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089521A (en) * | 1996-09-13 | 1998-04-10 | Fuji Koki:Kk | Electric flow control valve |
| JPH10169821A (en) * | 1996-12-12 | 1998-06-26 | Pacific Ind Co Ltd | Stopper structure of motor-operated valve |
| JPH10205638A (en) * | 1997-01-24 | 1998-08-04 | Fuji Koki Corp | Electrically driven flow rate control valve |
| JP2000249250A (en) * | 1999-02-25 | 2000-09-12 | Yamatake Corp | Adjusting valve operating apparatus |
| JP2001304445A (en) * | 2000-04-20 | 2001-10-31 | Saginomiya Seisakusho Inc | Motor-driven control valve and its assembling method |
| JP2002357277A (en) * | 2001-03-29 | 2002-12-13 | Fuji Koki Corp | Electric flow rate control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1573190A (en) | 2005-02-02 |
| JP2004353721A (en) | 2004-12-16 |
| KR101046792B1 (en) | 2011-07-06 |
| KR20040104310A (en) | 2004-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1952450B (en) | Valve for adjusting the flow-rate of fluids, particularly refrigeration fluids | |
| CN101268280B (en) | Scroll compressor | |
| CN103174844B (en) | There is the valve member of the connection of improvement | |
| CN100557239C (en) | Capacity control drive | |
| US8047223B2 (en) | Gauge assembly having a stop fill device | |
| CN100420889C (en) | Electric flow control valve | |
| CA2510497A1 (en) | Gas separator fluid crossover for well pump | |
| WO2009076038A4 (en) | Valve responsive to fluid properties | |
| US20120132414A1 (en) | Automatic Bypass for ESP Pump Suction Deployed in a PBR in Tubing | |
| PT1575647E (en) | Magnetic automatic stop valve | |
| CN107345593A (en) | Flow rate regulating valve | |
| CN101523051A (en) | Fluid system with pump activation device | |
| EP3242063B1 (en) | Flow-rate adjustable valve and method of manufacturing the same | |
| CN105276205A (en) | Electric valve | |
| CN106030089A (en) | Double eccentric valve | |
| EP3242065B1 (en) | Flow-rate adjustable valve | |
| JP6466609B2 (en) | Centrifugal pump | |
| CN110005832A (en) | Valve gear | |
| CN108167512A (en) | A kind of ball-cock assembly | |
| US5711338A (en) | Regulating drum for multiphase effluents and associated draw-off means and method for operating same | |
| CN208024926U (en) | A kind of ball-cock assembly | |
| JP6945860B2 (en) | How to assemble the electric valve and the electric valve | |
| CN100359189C (en) | Valve stroke sensor | |
| CN208295175U (en) | A kind of aqueous vapor switching valve | |
| CN102933850B (en) | Valve arrangement for a scroll refrigeration compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |