CN101086304A - Electric valve - Google Patents

Electric valve Download PDF

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Publication number
CN101086304A
CN101086304A CNA200710109227XA CN200710109227A CN101086304A CN 101086304 A CN101086304 A CN 101086304A CN A200710109227X A CNA200710109227X A CN A200710109227XA CN 200710109227 A CN200710109227 A CN 200710109227A CN 101086304 A CN101086304 A CN 101086304A
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CN
China
Prior art keywords
valve
gear
wheeled
wheel group
commutating tooth
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Granted
Application number
CNA200710109227XA
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Chinese (zh)
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CN101086304B (en
Inventor
荒井裕介
屉田英一
梅泽仁志
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Fujikoki Corp
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Fujikoki Corp
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Publication of CN101086304A publication Critical patent/CN101086304A/en
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Publication of CN101086304B publication Critical patent/CN101086304B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift valves
    • F16K27/029Electromagnetically actuated valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644One-way valve
    • F16K31/0655Lift valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/53Mechanical actuating means with toothed gearing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16Rectilinearly-movable armatures

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The invention relates to an electric motor, with valve turndown ratio of high resolution, without using planet gear speed reducer of high price, and being minitype and cheap. The said electric motor (1) for controlling the flow rate of the refrigerant of an air conditioner, comprising: spur wheel type reduction train mechanism (50) which combines two or more spur wheels (54-58) in order to change into a switching action of a valve and to slow down rotation of an electric motor (30) to a low speed rotary. An electric motor operated valve which comprises that D and K satisfy the following relations when a diameter of circle which expresses m for a module of a spur wheel used for said spur wheel type reduction train mechanism, and expresses the maximum outside dimension of a gear diameter direction of 1/K and said spur wheel type reduction train mechanism for a moderating ratio is set to D. The D/K satisfies the following relation, the dimension balance of each spur wheel is fine, in minitype and cheap, with high resolution and greater speed reducing ratio, D=alpha-m alpha=20-100; K=m/beta beta = 8-20.

Description

Mortor operated valve
Technical field
The present invention relates to mortor operated valve that the refrigerant flow of air-conditioning is controlled, relate in particular to a kind of like this mortor operated valve, it has can become the rotational delay of motor the commutating tooth wheeled ratio wheel group mechanism that by a plurality of spur wheels combined of low speed rotation with the on-off action that is transformed to valve.
Background technique
The rotation transformation that is about to motor as the mortor operated valve that the refrigerant flow of air-conditioning is controlled is the mortor operated valve of the on-off action of valve, divides by big class, and known have following two classes.The 1st class is, the rotation of motor is directly passed to screw mechanism valve is opened and closed, and for example patent documentation 1 and patent documentation 2 are disclosed; The 2nd class is, utilizes speed reducer that the rotation of rotor is slowed down and passes to screw mechanism, and for example patent documentation 3 and patent documentation 4 are disclosed.
Patent documentation 1: TOHKEMY 2000-356278 communique
Patent documentation 2: TOHKEMY 2004-197800 communique
Patent documentation 3: TOHKEMY 2002-84732 communique
Patent documentation 4: TOHKEMY 2003-232465 communique
Although it is compact that the mortor operated valve of above-mentioned the 1st class can be configured, purposes is limited to the occasion of low-load, and has and be difficult to unfavorable condition that the valve opening of each driving pulse is set subtly.
Though the mortor operated valve of above-mentioned the 2nd class also can be used to the bigger occasion of loading, can set the valve opening of each driving pulse more subtly, be configured compactness, will adopt for example planetary gear type reducing gear.But the planetary gear type reducing gear has following problem: require harsh accuracy of manufacturing, complex structure, and manufacture cost height.
Summary of the invention
The object of the present invention is to provide and a kind ofly needn't use the planetary gear reducing mechanism of high price and can have the valve opening and the small-sized inexpensive mortor operated valve of high resolution.
Mortor operated valve of the present invention is the mortor operated valve that the refrigerant flow of air-conditioning is controlled, has the wheeled ratio wheel group of the commutating tooth mechanism that becomes low speed rotation to combine by a plurality of spur wheels for rotational delay with the on-off action that is transformed to valve with motor, when the modulus of the spur wheel that is used for the wheeled ratio wheel group of described commutating tooth mechanism is made as m, reduction speed ratio when being made as 1/K, the wheeled ratio wheel group of the described commutating tooth of expression mechanism middle gear radially the diameter of a circle of maximum boundary dimension being made as D, D and K satisfy following relation:
D=α·m α=20~100
K=m/β β=8~20
Adopt this mortor operated valve, since be used for the wheeled ratio wheel group of commutating tooth mechanism spur wheel modulus, reduction speed ratio and expression gear radially the diameter of a circle of maximum boundary dimension be set at above-mentioned scope, so the size balanced of each spur wheel is good in the commutating tooth wheeled ratio wheel group mechanism, can obtain small-sized inexpensive and have high resolution, than the mortor operated valve of big retarding ratio.
In described mortor operated valve, the wheeled ratio wheel group of described commutating tooth mechanism can make have multistage by intermeshing two retarding stages that spur wheel constitutes.Adopt this structure, when the output rotation of motor was imported into the wheeled ratio wheel group of commutating tooth mechanism, because of multistage retarding stage is decelerated with very high reduction speed ratio, available high resolution was controlled valve opening.
In described mortor operated valve, the described modulus m of the spur wheel of the wheeled ratio wheel group of described commutating tooth mechanism can be designed to 0.2~0.4, represents that the diameter of a circle D of described maximum boundary dimension can be designed to below the 40mm, and described reduction speed ratio 1/K can be designed to 1/30~1/100.By selecting these number ranges, just making can difficulty, can obtain axially and radially all enough small-sized and have a mortor operated valve than the big retarding ratio.
More particularly, the wheeled ratio wheel group of the described commutating tooth mechanism of described mortor operated valve is housed in the gear-box, and the screw mechanism portion that will be the axial output displacement of thread spindle from the rotation output transform of the wheeled ratio wheel group of described commutating tooth mechanism is installed on the described gear-box, and described motor has: be provided in described gear-box outside the motor excitation device; Rotor assembly with permanent-magnet type, this rotor assembly rotation is bearing on the outside of described gear-box freely, and be driven in rotation by described motor excitation device, simultaneously this rotation is input in the wheeled ratio wheel group of the described commutating tooth mechanism, be equipped with the valve body that is connected with described screw mechanism portion in the outside of described gear-box, described valve body comprises: valve chamber; Be formed on the valve seat on a part of wall of this valve chamber; With the contact of described valve seat, separate and spool that the opening that is formed on the described valve seat is opened and closed; The valve rod that is subjected to the output displacement of described screw mechanism portion and makes described spool contact, separate with described valve seat; And bellows, this bellows is striden to establish and is installed between described valve rod and the described valve body, stops refrigeration agent to enter in the described gear-box.
Be used for the screw thread of described screw mechanism portion, its flight pitch can be designed to 0.5~1.5mm, and thread size can be designed in the scope of M3~M7.When the rotation of motor by the wheeled ratio wheel group of commutating tooth mechanism during than big retarding, the corresponding rotation output action of big torque that becomes with it is on this screw thread, screw thread for screw mechanism portion, though small-sized by adopting the such screw thread of above-mentioned number range to become, spool is moved reliably.
Mortor operated valve of the present invention constitutes like that by above-mentioned, and then the rotation of motor utilizes the decelerating effect of the wheeled ratio wheel group of commutating tooth mechanism and transmitted with bigger reduction speed ratio, can obtain bigger torque in the output after deceleration.Therefore, be in the screw mechanism portion of on-off action of valve in the output rotation transformation that aligns gear type deceleration wheels mechanism, can bring into play powerful valve driving force.In addition, owing to give screw mechanism portion than the rotation behind the big retarding, so can the High Accuracy Control spool displacement distance of valve seat promptly be formed at the aperture of the opening of valve seat, obtain the high resolution of valve opening, the energy High Accuracy Control is by the flow of mortor operated valve.Each spur wheel for the wheeled ratio wheel group of commutating tooth mechanism can not designed, make harsh restriction, but balance is set the specification of each spur wheel well.Therefore, even adopt the wheeled ratio wheel group of commutating tooth mechanism, also can be as far as possible with each spur wheel compact in size.And mortor operated valve of the present invention is simple structure, and the producibility excellence can be made inexpensively.
Description of drawings
Fig. 1 is the motor of expression mortor operated valve of the present invention and the sectional view of reducing gear.
Fig. 2 is a sectional view of representing the valve body of mortor operated valve of the present invention in detail.
Fig. 3 is the expression reduction speed ratio and shows the plotted curve that concerns between the circular diameter of deceleration wheels mechanism's middle gear maximum boundary dimension radially.
Fig. 4 is the radially explanatory drawing of the circle of maximum boundary dimension of the wheeled ratio wheel group of expression commutating tooth mechanism middle gear.
Embodiment
Fig. 1 is the longitudinal section of the major component except valve body of the mortor operated valve with the wheeled ratio wheel group of commutating tooth mechanism of the present invention (below abbreviate mortor operated valve as).Omitted hatching for a part of key element.Fig. 2 is in detail expression and the sectional view of the valve body of mortor operated valve major component combination shown in Figure 1, screw thread bearing, thread spindle, spheroid.
As shown in Figure 1, represent whole mortor operated valve with symbol 1, basic structure has: drive portion 2, its by excitation function generation effect, comprise the motor that constitutes by stator and rotor; Gear reduction unit portion 3, it comprises the wheeled ratio wheel group of the commutating tooth mechanism that gear reduction is carried out in the rotary driving force input that drive portion 2 is produced, the rotation after will slowing down is exported; And screw mechanism portion 4, its utilize screw action will from the deceleration rotation transformation of gear reduction unit portion 3 for thread spindle to displacement and exported.Mortor operated valve 1 is as by being connected the valve of finishing with valve body portion with the carry-out part of screw mechanism portion 4, and Fig. 1 does not represent the valve body portion that should connect.The thread spindle of screw mechanism portion 4 to displacement output be passed to the valve body portion that represents with symbol 5 among Fig. 2.
In mortor operated valve 1, drive portion 2 comprises motor 30, and this motor 30 has the motor excitation device 31 of the tubular that constitutes stator and is configured in the inside of motor excitation device 31 and is subjected to rotating the rotor assembly 32 of the permanent-magnet type of driving.This motor 30 is stepping motors.Motor excitation device 31 have be wound on the coil 33 that is equipped on the inner coil holder 34 and by to coil 33 energisings by the stator 35 of excitation, coil 33 is connected with external power supply by circuit 36, lead-in wire 37 and lead 7 and obtains powering.Rotor assembly 32 has output gear 40 as carry-out part in the underpart of the fulcrum 39 that transmits its output rotation.
Drive portion 2 is configured in the top of gear reduction unit portion 3 as a whole, and fulcrum 39 extends in the gear reduction unit portion 3, and the rotation of output gear 40 is passed to gear reduction unit portion 3.Drive portion 2 and gear reduction unit portion 3 are that lid 41 covers by gas-tight container.Lid 41 is containers that the tip circle barrel shape is arranged of making of metallic material, and its lower portion 41a covers the gear-box 43 in the gear reduction unit portion 3, contains the motor 30 of drive portion 2 in the epimere part 41b that extends above lower portion 41a integratedly.In order to see drawing easily clearly, each spur wheel of gear reduction unit portion 3 is represented to horizontal expansion, so lid 41 drawn into multistage cylindricly, but in fact each spur wheel is positioned at the below of motor 30, lid 41 is the cylindric of straight line.When being installed in lid 41 on the motor excitation device 31, motor excitation device 31 is pressed against on the gear-box 43 fixing by the assembling set 42 that is formed by leaf spring.The bottom side of lid 41 is fixed with rubber system cover part 34 one of the base plate 431 that covers gear-box 43.The peripheral part, lower end of lower portion 41a and the peripheral part of cover part 34 are fixed by caulking part 41d, and the inside of lid 41 is held in sealing state from the outside.
The gear reduction unit portion 3 of mortor operated valve 1 has the wheeled ratio wheel group of the commutating tooth that the rotation of rotor assembly 32 is slowed down mechanism (below abbreviate " deceleration wheels mechanism " as) 50.Deceleration wheels mechanism 50 has parallel with the fulcrum 39 of drive portion 2 and leaves the longitudinal rotating shaft 51,52,53 of arranged spaced and be located at the large diameter gear 54,55,56 and the small- diameter gear 57,58 of the deceleration usefulness on these longitudinal rotating shafts 51~53 respectively.Large diameter gear 54 and output gear 40 engagements are with the small-diameter gear 57 and large diameter gear 55 engagements of large diameter gear 54 one, with the small-diameter gear 58 and large diameter gear 56 engagements of large diameter gear 55 one.The rotation of rotor assembly 32 is greatly slowed down by these gears, is delivered to the longitudinal rotating shaft 53 with final stage gear 56 one.
At the output gear shaft with deceleration wheels mechanism 50 is in the screw mechanism portion 4 that is connected of longitudinal rotating shaft 53, is delivered to thread spindle 62 from the rotation output of longitudinal rotating shaft 53 by the tack drive portion 63 that is formed on longitudinal rotating shaft 53 lower ends.Be formed with the slit 64 that is inserting this tack drive portion 63 on the top of thread spindle 62.Thread spindle 62 screws togather with the female thread 61 that is formed on tubular bearing 60 inner faces.Be formed with recess 66 in the bottom of thread spindle 62, spheroid 67 is fixed in this recess 66.Be supported with the nut member 65 that is fixed in the valve body described later portion 5 in the underpart of bearing 60.Bearing 60 and nut member 65 rotations assembling freely.When the rotation of rotor assembly 32 was passed to longitudinal rotating shaft 53 by deceleration wheels mechanism 50, the screw mechanism portion 4 of mortor operated valve 1 made this rotation be transformed into the straight line motion that valve is opened and closed as described later through thread spindle 62 and spheroid 66.
Then describe the valve body portion 5 of mortor operated valve 1 in detail.Fig. 2 is a sectional view of representing valve body 70 that valve body portion 5 has, valve rod 80 etc. in detail.The below, inside of valve body 70 is formed with valve chamber 72, and is formed with a part of wall of valve seat 77 as this valve chamber 72.On valve body 70, be formed with the aperture 74 that extends and communicate from its bottom downwards with valve chamber 72.In addition, on valve body 70, pipe arrangement 78a that is communicated with valve chamber 72 sides and the pipe arrangement 78b that is communicated with aperture 74 are installed airtightly for refrigeration agent being flowed into and flowing out.Peripheral part by valve body 70 upper end portions combines with the interior perimembranous screw thread of nut member 65, prevents that moisture etc. from entering in the valve body 70.And on valve body 70, be formed with the top of this valve chamber 72 chamber 76 that is communicated with, refrigeration agent is imported.
In valve chamber 72, dispose the spool 90 that the opening that is formed at valve seat 77 is opened and closed with valve seat 77 contact separations.For spool 90 is moved, the valve rod 80 that links to each other with the thread spindle 62 of screw mechanism portion 4 is connected on the spool 90.The upper end portion 82 that is provided in the bellows 81 in valve rod 80 outsides utilizes ring element 83 to be fixed on the valve body 70 by riveted joint processing.For ring element 83 fixing on valve body 70, except riveted joint processing, keep tightness by soldering.
The underpart 84 of bellows 81 is fixed on valve rod 80.The refrigeration agent that bellows 81 prevents to import in the chamber 76 of valve body 70 enters gear-box 43.The sphere supports member 85 that is fixed with spheroid 67 usefulness is inserted in upper end portion at valve rod 80.As shown in Figure 1, thread spindle 62 is connected to the top of spheroid 67, utilizes screw mechanism portion 4 that axial thrust is delivered to valve rod 80 sides.
The rotor assembly 32 that is equipped in lid 41 inside is rotated by the coil 33 that drive signal is supplied in motor excitation device 31.
In valve body portion 5, spool 90 be subjected to thread spindle to displacement output and carry out the contact separation action with respect to valve seat 77, move by this and change valve opening.Promptly, in valve body portion 5, when thread spindle 62 is rotated in bearing 60, thread spindle 62 just is transformed into axial moving, the axial internal clearance of thread spindle 62 is passed to valve rod 80 sides through spheroid 67, sphere supports member 85, be installed on valve rod 80 tops spool 90 just along the vertical direction straight line move.Thus, the flow path area between spool 90 and the aperture 74 is controlled, and the flow of refrigeration agent is adjusted.At this moment, striding the refrigeration agent that the bellows 81 of establishing installation prevents to import in the chamber 76 that is communicated with valve chamber 72 between valve rod 80 and valve body 70 enters in the gear-box 43.
In deceleration wheels mechanism 50, from the rotation of the output gear 40 of rotor assembly 32 as input.Output gear 40 is small-diameter gears, constitutes the 1st retarding stage with large diameter gear 54, and this large diameter gear 54 meshes and is bearing on the longitudinal rotating shaft 51 with output gear 40.Constitute the 2nd retarding stage with the small-diameter gear 57 of large diameter gear 54 one and the large diameter gear 55 that is bearing on the longitudinal rotating shaft 52 of adjacency.Equally, constitute the 3rd retarding stage with the small-diameter gear 58 of large diameter gear 55 one and the large diameter gear 56 that is bearing on the longitudinal rotating shaft (output gear shaft) 53 of adjacency, longitudinal rotating shaft (output gear shaft) 53 just becomes the output shaft of deceleration wheels mechanism 50.Therefore, in gear reduction unit portion 3, by a plurality of retarding stages that radially connect at gear, the output of motor 30 rotation (rotation of rotor assembly 32) is decelerated than the big retarding ratio with for example 50 to 1 degree, and transmits to thread spindle 62.Thus, thread spindle 62 can be rotated with small rotating speed, realizes the valve opening control that resolution is high.
As the embodiment of mortor operated valve of the present invention, can enumerate following embodiment.In mortor operated valve 1, as the module m of the tooth size of determining deceleration wheels mechanism 50 employed spur wheels, preferred design becomes 0.2~0.4.If module m is designed to too forr a short time than this scope, then the tooth size of spur wheel is too little, just is difficult to make, and in addition, stand the size of transmitting torque, then must the lengthening gear shaft to length, the gear axial length of gear reduction unit portion 3 is just elongated.If it is opposite that module m is designed to bigger than above-mentioned scope, so, though make easily, it is big that gear diameter becomes, and the gear of the expression deceleration wheels mechanism 50 radially diameter of the circle of maximum boundary dimension (circle that dots among Fig. 4) is that the size of mortor operated valve 1 also becomes big.This circle be gear with the wheeled ratio wheel group of commutating tooth mechanism 50 radially as diameter and be the circle that comprises the minimum of all spur wheels 54~58, and be circle by the tooth top of part or all spur wheel.The described maximum boundary dimension of deceleration wheels mechanism 50 is that diameter is such small-sized of 15~40mm, and reduction speed ratio can obtain 30~100 such higher values simultaneously.In addition, as the thread spindle 62 of screw mechanism portion 4, can be designed to flight pitch and be the small-sized v thread (also trapezoidal thread, square thread) of M3~M7 of 0.5~1.5mm.
As an example, the graphical representation of Fig. 3 step of reduction be designed to that 3 grades or 4 grades, modulus m are designed to 0.2,0.3,0.4, expression deceleration wheels mechanism middle gear is when radially the diameter of a circle of maximum boundary dimension is designed to 15~40mm, obtains reduction speed ratio and be 30~100 combined situation.

Claims (5)

1. a mortor operated valve is controlled the refrigerant flow of air-conditioning, it is characterized in that, has the wheeled ratio wheel group of commutating tooth mechanism, and it is combined by a plurality of spur wheels with the on-off action that is transformed to valve for the rotational delay with motor becomes low speed rotation,
When the modulus of the spur wheel that is used for the wheeled ratio wheel group of described commutating tooth mechanism is made as m, reduction speed ratio when being made as 1/K, the wheeled ratio wheel group of the described commutating tooth of expression mechanism middle gear radially the diameter of a circle of maximum boundary dimension being made as D, D and K satisfy following relation:
D=α·m α=20~100
K=m/β β=8~20
2. mortor operated valve as claimed in claim 1 is characterized in that, the wheeled ratio wheel group of described commutating tooth mechanism has multistage by intermeshing two retarding stages that spur wheel constitutes.
3. mortor operated valve as claimed in claim 1, it is characterized in that, the described modulus m of the spur wheel of the wheeled ratio wheel group of described commutating tooth mechanism is 0.2~0.4, represents that the diameter of a circle D of described maximum boundary dimension is below the 40mm, and described reduction speed ratio 1/K is 1/30~1/100.
4. as each described mortor operated valve in the claim 1~3, it is characterized in that, the wheeled ratio wheel group of described commutating tooth mechanism is housed in the gear-box, and the screw mechanism portion that will be the axial output displacement of thread spindle from the rotation output transform of the wheeled ratio wheel group of described commutating tooth mechanism is installed on the described gear-box
Described motor has: be provided in described gear-box outside the motor excitation device; With the rotor assembly of permanent-magnet type, this rotor assembly rotation is bearing in the outside of described gear-box freely, and is driven in rotation by described motor excitation device, simultaneously this rotation is input to the wheeled ratio wheel group of described commutating tooth mechanism,
Be equipped with the valve body that is connected with described screw mechanism portion in the outside of described gear-box, described valve body comprises: valve chamber; Be formed on the valve seat on a part of wall of this valve chamber; With the contact of described valve seat, separate and spool that the opening that is formed on the described valve seat is opened and closed; The valve rod that is subjected to the output displacement of described screw mechanism portion and makes described spool contact, separate with described valve seat; And bellows, this bellows is striden to establish and is installed between described valve rod and the described valve body, stops refrigeration agent to enter in the described gear-box.
5. mortor operated valve as claimed in claim 4 is characterized in that, the employed screw thread of described screw mechanism portion, and its flight pitch is 0.5~1.5mm, thread size is the scope of M3~M7.
CN200710109227XA 2006-06-06 2007-05-24 Electric valve Active CN101086304B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2006-157501 2006-06-06
JP2006157501 2006-06-06
JP2006157501 2006-06-06
JP2007068250 2007-03-16
JP2007-068250 2007-03-16
JP2007068250A JP2008014485A (en) 2006-06-06 2007-03-16 Motor driven valve

Publications (2)

Publication Number Publication Date
CN101086304A true CN101086304A (en) 2007-12-12
CN101086304B CN101086304B (en) 2010-12-08

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KR (1) KR101278417B1 (en)
CN (1) CN101086304B (en)

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CN107429849A (en) * 2014-12-15 2017-12-01 贝利莫控股公司 Control device
CN104964066A (en) * 2015-06-29 2015-10-07 上海康源电气有限公司 Electric switching valve with speed reduction device and refrigerator system utilizing electric switching valve
CN108730553A (en) * 2017-04-17 2018-11-02 浙江三花汽车零部件有限公司 A kind of motor-driven valve
CN108730553B (en) * 2017-04-17 2020-04-28 浙江三花汽车零部件有限公司 Electric valve
CN110375103A (en) * 2018-04-13 2019-10-25 浙江三花智能控制股份有限公司 Motor-driven valve
CN112856017A (en) * 2019-11-11 2021-05-28 盾安环境技术有限公司 Valve with a valve body
CN112856017B (en) * 2019-11-11 2024-01-23 盾安环境技术有限公司 Valve

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CN101086304B (en) 2010-12-08
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JP2008014485A (en) 2008-01-24

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