CN107975602A - A kind of volume control device - Google Patents
A kind of volume control device Download PDFInfo
- Publication number
- CN107975602A CN107975602A CN201610916254.7A CN201610916254A CN107975602A CN 107975602 A CN107975602 A CN 107975602A CN 201610916254 A CN201610916254 A CN 201610916254A CN 107975602 A CN107975602 A CN 107975602A
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- Prior art keywords
- valve seat
- chamber
- valve
- wall
- control device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention discloses a kind of volume control device, including valve body, first valve seat, second valve seat and spool, valve body includes the first intercommunicating pore, second intercommunicating pore, first valve port and the first chamber, first valve seat is arranged at the first chamber, first valve seat can be slided with respect to the second valve seat, first valve seat has the second valve port, when volume control device is located at the first operating position, first valve seat closes the first valve port, spool can adjust the openings of sizes of the second valve port, when volume control device is located at the second operating position, first valve seat opens the first valve port, second intercommunicating pore is connected by the first chamber with the first intercommunicating pore, structure of the present invention has the advantages that structure is relatively easy.
Description
【Technical field】
The present invention relates to fluid control technology field, more particularly to a kind of volume control device.
【Background technology】
Volume control device, the application of volume control device that particularly can be automatically controlled are more and more extensive.Such as electric expansion valve
It is one kind of volume control device, the electric expansion valve with one-way function can improve the efficiency of air-conditioning system, thus in sky
Application in adjusting system is more and more extensive, and the especially application in New-energy electric vehicle air-conditioning also gradually strengthens.With unidirectional
The electric expansion valve general structure of function is more complicated, and matching requirements are high, therefore, it is necessary to existing technology is improved,
To solve above technical problem.
【The content of the invention】
It is an object of the invention to provide a kind of relatively simple volume control device of structure.
To achieve the above object, adopt the following technical scheme that：
A kind of volume control device, including valve body, the first valve seat and spool, the valve body include the first intercommunicating pore, second
Intercommunicating pore, the first chamber and the first valve port, first intercommunicating pore are connected with first chamber, when first valve port connects,
Second intercommunicating pore can be connected by first valve port of opening with first chamber, and first valve seat includes second
Valve port, relatively described second valve port of the spool are set,
The volume control device includes guide part, and the guide part stretches into first valve seat or first valve
Seat stretches into the guide part, first valve seat can be such that first valve seat at least wraps along the guide part with respect to slip
Include the first operating position, the second operating position；The volume control device further includes the second chamber, the spool at least part position
In second chamber, second chamber is connected with first chamber, and when second valve port connects, second chamber can lead to
Cross second valve port opened and connect second intercommunicating pore；
When first valve seat is located at the first operating position, first valve seat closes first valve port, the spool
It can be moved relative to second valve port, and second valve port can be opened or closed or adjust the aperture of second valve port
Size；When first valve seat is located at the second operating position, first valve seat opens first valve port, second connection
Hole is connected by first chamber with first intercommunicating pore.
Compared with prior art, the present invention closes and opens the by setting the first valve seat that can be slided along guide part
One valve port, when the first valve seat closes the first valve port, the openings of sizes of the second valve port is adjusted using spool, realizes volume control device
Throttling and one-way function, structure it is relatively easy.
【Brief description of the drawings】
Fig. 1 is the dimensional structure diagram of volume control device；
Fig. 2 is schematic cross-section of the volume control device along A-A shown in Fig. 1, is specially the first work of volume control device
Make view during position；
Fig. 3 is schematic diagram of the volume control device at the second operating position shown in Fig. 1；
Fig. 4 is a kind of dimensional structure diagram of embodiment of the first valve seat；
Fig. 5 is schematic cross-section of first valve seat along B-B shown in Fig. 4；
View when Fig. 6 is the first operating position of volume control device second embodiment；
View when Fig. 7 is volume control device the second operating position of second embodiment；
State when Fig. 8 is the first operating position in another embodiment of volume control device in second embodiment is shown
It is intended to；
State when Fig. 9 is the second operating position in another embodiment of volume control device in second embodiment is shown
It is intended to；
Figure 10 is the structure diagram of another embodiment of the first valve seat；
View when Figure 11 is the first operating position of volume control device in 3rd embodiment；
View when Figure 12 is the second operating position of volume control device in 3rd embodiment.
【Embodiment】
Fig. 1, Fig. 2, Fig. 3 are refer to, Fig. 2 and Fig. 3 are two kinds of operating positions of the first embodiment of volume control device
View.Volume control device includes valve body 1, the first valve seat 2, valve member 3 and electronic coil 4, wherein, valve member 3 wraps
The second valve seat 31 is included, the second valve seat 31 includes guide part 311, and the first valve seat 2 intersects setting, 2 energy of the first valve seat with guide part 311
It is enough to be slided along guide part 311 is opposite.Valve body 1 includes the first intercommunicating pore 11, the second intercommunicating pore 12 and the first chamber 13 and the first valve port
14, the first intercommunicating pore 11 is connected with the first chamber 13, and the second intercommunicating pore 12 can pass through the first valve port 14 and the first chamber 13 of opening
Connection, the first intercommunicating pore 11 and the second intercommunicating pore 12 set the opening connected with miscellaneous equipment in valve body surface.Specifically, shape
Side wall into the first chamber 13 is provided with the first opening 111, and the first intercommunicating pore is connected by the first opening 111 with the first chamber 13, the
One valve port 14 is arranged at the end wall to form the first chamber 13, and the second intercommunicating pore 12 can pass through the first valve port 14 of opening and the first chamber
13 connections, in the first chamber axial direction, the first opening 111 is located at the top of the first valve port 14.More specifically, the first chamber is formed
13 side wall includes the first side wall 131, second sidewall 132, first step wall 133 and end wall 134, and the first side wall 131 encloses sky
Between cross-sectional diameter be more than the cross-sectional diameter of 132 enclosed space of second sidewall, the first opening 111 is arranged at the first side wall
131, for second sidewall 132 with respect to the first side wall 131 adjacent to the first valve port 14, first step wall 133 is arranged at the first side wall and the
Between two side walls, first step wall 133 connects vertically and with the first side wall and second sidewall substantially with the first side wall, second sidewall
Connect；First valve port 14 is arranged at end wall 134, and end wall 134 is with respect to the first side wall adjacent to second sidewall.First intercommunicating pore 11 is straight line
Hole, its axis are vertical with the axis of the first chamber 13；Second intercommunicating pore 12 is bending hole, and the second intercommunicating pore 12 includes two parts, the
The axis of the axis of the Part I of two intercommunicating pores 12 and the first chamber 13 overlaps or parallel, and is connected with the first valve port 14, second
The axis of the Part II of intercommunicating pore 12 is vertical with the axis of the first chamber, and the Part II of the second intercommunicating pore 12 is set in valve body surface
It is equipped with the opening connected with miscellaneous equipment；It is recognised that the second intercommunicating pore 12 can also be straight hole, the axis of the second intercommunicating pore
Overlapped with the axis of the first chamber or parallel.The center of first valve port 14 is located at the axis of the first chamber 13, the diameter of the first valve port 14
Less than the cross-sectional diameter of the first chamber 13.Volume control device can pass through the first intercommunicating pore 11 and the second intercommunicating pore 12 and heat pipe
The pipeline connection of reason system, and then realize the flow regulating function of volume control device, wherein, the first intercommunicating pore can be used as cold
The entrance of matchmaker or outlet, cooperating therewith, outlet or entrance of second intercommunicating pore as refrigerant.
Please refer to Fig.1-5, the first valve seat 2 is arranged at the first chamber 13, the first valve seat 2 can in the first chamber 13 on glide
It is dynamic.First valve seat 2 includes the second valve port 21, receiving hole 22 and first end 23, the second end 24, in the first valve seat slip side
It is located at the both ends of the first valve seat 2 to, first end and the second end, wherein, first end 23 is towards guide part 311, second end
Portion 24 is run through towards the first valve port 14, in other words 24 opposite first end 23 of the second end adjacent to the first valve port, the second valve port 21
The second end 24, the opening of receiving hole 22 are arranged at first end, and receiving hole 22 is connected with the second valve port 21, the horizontal stroke of receiving hole 22
Diameter of section is far longer than the cross-sectional diameter of the second valve port 21.Wherein, the second valve port 21 is coaxially disposed with the first valve port 14, the
Two valve port cross sections are less than the first valve port cross section.First valve seat can be moved up and down along guide part is opposite, when the second end 24
When end wall 134 with forming the first chamber contacts and compresses end wall 134, end part seal is formed, the first valve seat 2 closes the first valve port
121, the second intercommunicating pore 12 is not connected with the first chamber 13；And/or first the sidepiece of valve seat 2 contacted with second sidewall 132, formed
Wall portion seals, it is recognised that the sidepiece of the first valve seat 2 can also not contacted with second sidewall, does not form wall portion sealing.More into one
Step, forms the end wall 134 of the first chamber 13 and/or second sidewall sets the first groove, and sealing ring is placed in first groove, can
Strengthen sealing effect of first valve seat to the first valve port.
Fig. 2-5 are referred to, valve member 3 further includes spool 32, thread transmission 33, rotor 34, bushing pipe and locating part
(not shown).Second valve seat 31 is fixed with the assembling of valve body 1, and specifically, valve body 1 includes mounting wall and the installation formed by mounting wall
Chamber, the second valve seat include guide part 311, mounting portion 312 and first through hole, the 312 partial insertion valve body of mounting portion of the second valve seat
Installation cavity, and be fixedly connected with the mounting wall of valve body.First through hole is arranged at the centre of the second valve seat 31, and along second
31 axial direction of valve seat or above-below direction run through the second valve seat, which is used to house installation spool 32, it is recognised that the
One through hole runs through guide part.After second valve seat 31 is fixed with the assembling of valve body 1, guide part 311 is located at the first chamber 13, is oriented in other words
Portion 311 is raised from the mounting portion 312 of the second valve seat and stretches into the first chamber 13.Guide part 311 includes the second opening 3112 and the 3rd
Opening 3111, the 3rd opening 3111 are arranged at guide part end, and the 3rd opening is first through hole in the end of guide part in other words
Opening；Second opening 3112 runs through the sidepiece of guide part, and first through hole is connected by the second opening with the first chamber 13, and second opens
Mouthfuls 3112 are oppositely arranged towards the first opening 111, in other words the second opening 3112 with the first opening 111, and second is open 3112
Can be two or more, to increase the communicating passage of first through hole and the first chamber 13, it is known that the second opening the opposite 3rd
Opening is away from the first valve port.
The outside diameter of guide part 311 is substantially equal to the diameter of receiving hole, and after assembling, guide part 311 stretches into the appearance of the first valve seat
Receive hole 22, the sidepiece of guide part 311 is contacted with the inner wall of receiving hole 22, and the first valve seat 2 can be along above and below the sidepiece of guide part 311
Slide, slip of the guide part 311 to the first valve seat 2 in other words play the guiding role.In the first chamber axial direction, when the first valve seat 2
During positioned at minimum point, when the first valve seat 2 is contacted with forming the end wall 134 of the first chamber in other words, part guide part is still located at accommodating
In hole, when the first valve seat is located at peak, when the end wall of receiving hole 22 is contacted with the end of guide part in other words, the first valve seat
First end 23 be relatively distant from positioned at the second opening below the side wall of the first valve port, in other words, the first valve seat 2 is located at highest order
When putting, at least partly the second opening is connected with the first chamber.In the first chamber axial direction, guide part is provided with below the second opening
Stop configurations, the stop configurations of guide part can limit the position of the first valve seat, and specifically, the stop configurations of guide part can limit
Make the first valve seat to continue to slide up, the stop configurations of guide part can be snap ring, and correspondingly, guide part is provided with and snap ring phase
The depressed area answered, or guide part are provided with projection below the second opening, which can be annular projection.Flow control fills
Put and further include the second chamber 3113, forming the wall of the second chamber 3113 includes side wall and end wall, forms the side wall of the second chamber 3113 and includes
The wall of first through hole and the wall of receiving hole, forming the end wall of the second chamber 3113 includes the end wall of receiving hole, and the second chamber 3113 passes through
Second opening is connected with the first chamber 13.Slided it is recognised that the first valve seat 2 is oppositely oriented portion 311, the volume hair of the second chamber 3113
Changing, correspondingly, the first chamber 13 can also change with the slip volume of the first valve seat.
Thread transmission 33 includes moving part and fixed part, and one of moving part and fixed part are spiral shell
Bar 331, another is the moving part (such as screw rod) of nut 332, wherein thread transmission, is carried out with rotor 34, locating part
It is fixedly connected, then spool 32 and 331 phase of screw rod is assembled, forms assembly parts.The assembly parts and nut 332, the second valve seat 31 according to
It is secondary to carry out assembling fixation, wherein the second valve seat 31 is fixedly connected with nut 331, specifically, nut can by interference fit and with
Second valve seat is mutually fixed.In other embodiments, nut, screw rod also can mutual reversing of position, controlling more demanding field
Closing, can also increase the adaptor 35 that setting is fixed with valve seat so that adaptor 35 is fixedly connected with 332 and second valve seat 31 of nut,
Spool stability can further be lifted.Bushing pipe is fixedly connected with the second valve seat, and specifically, bushing pipe and the second valve seat are solid by welding
Fixed or threaded connection is fixed, and the second valve seat is mutually fixed with thread connecting mode and valve body, and electronic coil 4 and 3 phase of valve member are installed,
Volume control device is also equipped with the outer cover of protection volume control device, to lift dustproof and waterproof performance.
Electronic coil 4 is electrically connected with controller or is electrically connected by the way that control circuit is (not shown), controller output control
Signal input flow rate control device processed or by control circuit output control signal input flow rate control device, specifically, can be defeated
Enter power-off signal or power on signal or aperture regulation signal electron coil 4, when electronic coil is powered, in electromagnetic force
Lower rotor part is rotated, and due to the effect of pitch, under rotor drive, for screw rod relative to nut rotation, up and down action, spool can
According to the certain step number of above-mentioned aperture regulation signalizing activity, spool 32 is relatively fixed to screw rod, when both influence from external force,
Spool 32 is moved up and down with screw rod, especially can be relative to so that the spool is acted relative to the first valve seat or valve body
Second valve port is acted.Spool, screw rod are provided with elastic component between the two, in the axial direction and perpendicular to the axial direction
There can be certain relative displacement between the two in the radial direction, play cushioning effect, lift spool kinetic stability.
Fig. 2 and Fig. 3 are referred to, spool 32 includes neck 321, fixed part 322, and neck 321 is located at one end of spool, fixed
Portion 322 is located at the other end of spool, and specifically, the neck 321 of spool is located at spool and obtains lower end, and fixed part 322 is located at spool
Upper end.The neck 321 of spool is engaged with the second valve port 21, and deep enough second valve port 21 of neck energy of spool, is adjusted cold
The flow that matchmaker passes through the second valve port 21.The neck 321 of spool is used for as the matching mechanism with the second valve port in the present specification
The second valve port is opened or closed, the neck 321 that the spool is acted by spool 32 opens or closes the second valve port 21, spool
Neck 321 can close the second valve port 21 when being located at the second valve port 21, can be opened when the neck of spool leaves the second valve port
Two valve ports；The fixed part 322 of spool is fixedly connected with screw rod.Between the neck of spool, fixed part can by set linkage section and
Integrally connected, in other embodiments, the neck of spool can be also fixed together with fixed part by assembling.
When refrigerant forward flow, the region of 11 side of the first intercommunicating pore is higher-pressure region, the area of 12 side of the second intercommunicating pore
Domain is low-pressure area, and under refrigerant pressure difference effect, the first valve seat 2, which moves downward, closes the first valve port, and on this basis, refrigerant leads to
Cross second opening enter the second chamber, when spool 32 open the second valve port when, refrigerant through the second valve port enter the first valve port so that
Into the side of the second intercommunicating pore, in the process, spool can be moved axially in reciprocal fashion with screw rod, so as to adjust the second valve port
Aperture, realize the purpose of volume control device flow-rate adjustment.When refrigerant reverse flow, i.e. the region of the second intercommunicating pore side
For higher-pressure region, the region of the first intercommunicating pore side is low-pressure area, and under refrigerant pressure difference effect, the first valve seat 2 moves up, from
And the first valve port 14 is opened, refrigerant enters the first chamber 13 by the first valve port 14, and then enters the first connection by the first opening
Hole 11, so as to fulfill the purpose of one-way conduction.In addition, the first chamber 13 is connected by the second opening 3112 with the second chamber 3113, the
Two openings 3112 keep the connection of the first intercommunicating pores 11 and the second chamber 3113, are conducive to keep upper and lower two sidepieces of the first valve seat
Pressure balance.In the present specification, the end of 2 the first valve port of relative proximity of the first valve seat is contacted with forming the end wall of the first chamber
When, the first operating position of the first valve seat 2 is arranged to, correspondingly, the first operating position of the first valve seat is volume control device
The first operating position；When first valve seat is located at opposite peak, the second operating position of the first valve seat 2 is arranged to, correspondingly,
Second operating position of the first valve seat is the second operating position of volume control device.
The internal diameter of the receiving hole 22 of first valve seat is substantially equal to the outside diameter of guide part 311, and the outside diameter of the first valve seat 2 is substantially etc.
In the internal diameter for the first chamber 13 that second sidewall is enclosed, the first valve seat is during sliding up and down, guide part 311 and second sidewall
132 pair of first valve seat 2 has guiding role, when the first valve seat 2 bears the lateral pressure of high pressure refrigerant, guide part 311 and second
Side wall 132 can prevent the first valve seat 2 from bias occurs, so as to avoid interior leakage from occurring, ensure the reliability of system work.It can know
Road, the side wall for forming the first chamber can also be continuous side walls, i.e., the first side wall 131 is identical with 132 diameter of second sidewall, the first valve
Seat 2 is contacted with forming the side wall of the first chamber all the time during sliding up and down, when the first valve seat is located at peak, the first valve seat 2
The second end 24 positioned at first opening the first valve port of relative proximity side wall above, the first chamber 13 can by first opening with
First intercommunicating pore connects.In addition, first step wall 133 can be obliquely installed with respect to the first side wall and second sidewall, first step
Wall play the guiding role when being moved down to the first valve seat, it is possibility to have effect produces larger inclined when preventing the first valve seat 2 from being impacted
The heart；During refrigerant reverse flow, the first step wall of relative tilt can play drainage to refrigerant.
It is volume control device second embodiment schematic diagram to refer to Fig. 6 and Fig. 7, Fig. 6 and Fig. 7, wherein, relative to implementation
Example one, is described mainly in combination with difference below.Volume control device further includes flexible member 5, and flexible member includes the
One end, second end, positioned at flexible member core through hole and be arranged at the circulation passage of flexible member sidepiece, spool 32
Through the core through hole of flexible member 5, flexible member 5 can be the elastic elements such as spring or bellows, wherein, elasticity member
When part is bellows, the sidepiece of bellows need to set multiple openings, in order to which bellows being capable of inside and outside circulation.Flexible member 5 is set
Be placed in the second chamber 3113, wherein, the end wall of the first end and receiving hole 22 of flexible member 5 is fixed, the second end of flexible member 5 with
Adaptor 35 is fixed.In other embodiment, volume control device does not include adaptor 35, and the second valve seat is consolidated including flexible member
Determine portion, flexible member fixed part is arranged at first through hole, and flexible member fixed part is used for the second end for fixing flexible member, elasticity
Element fixed part can be snap ring, and correspondingly, the inner wall of first through hole is provided with the groove of installation snap ring, or first through hole
Inner wall is provided with projection, and in this real mode, which is annular projection.Further, the end wall and/or flexible member of receiving hole
Fixed part or adaptor set the second groove, and the second groove is generally annular, the first end of the second groove and flexible member and
The second end coordinates installation, when volume control device works, can prevent that flexible member 5 is radially sliding with respect to the end wall of receiving hole
It is dynamic, cause 5 radial force of the first valve seat uneven, prevent that the first valve seat 5 is eccentric, so as to avoid interior leakage, what guarantee system worked can
By property.In other embodiments, the first valve seat 5 sets the first boss with holes, and adaptor or flexible member fixed part set the second band
Hole boss, spool 32 pass through the outside diameter of the first boss with holes and the second boss with holes, the first boss with holes and the second boss with holes
Flexible member internal diameter is substantially equal to, the first boss with holes and the second boss with holes are respectively embedded into the both ends of flexible member 5, prevent bullet
Property element break away, and then prevent that 2 radial force of the first valve seat is uneven, avoids side leakage.Volume control device is in the second valve seat and
Flexible member is set between one valve seat, during refrigerant forward flow, under the effect of flexible member elastic force, can have the first valve seat 2
Effect moves down, and improves the sensitivity of the first valve seat 2；When first valve seat 2 is contacted with forming the end wall of the first chamber 13, flexible member
5 can also strengthen pressure of first valve seat to the end wall of the first chamber of formation, improve sealing of first valve seat 2 to the first valve port 14；
During refrigerant reverse flow, the first valve seat 2 is subject to the pressure differential of refrigerant to move up, while hits spool, sets flexible member can
To effectively reduce shock of first valve seat 2 to spool 32, the working life of volume control device is effectively improved.
Fig. 8-10 is referred to, Fig. 8-10 is another embodiment of the second embodiment of flow control dress.First valve seat 2
Sidepiece includes the 3rd side wall 251,252 and the 4th side wall 253 of second step wall, and the 3rd side wall 251 is located at second step wall 252
Top, the 4th side wall 253 are located at the lower section of second step wall 252, wherein, 251 enclosed space section of the 3rd side wall is less than the 4th
253 enclosed space section of side wall, when the second end 24 of the first valve seat 2 is contacted with forming the end wall of the first chamber, the 4th side wall 253
Contacted with second sidewall 132, the 4th side wall enclosed space section is substantially identical with second sidewall enclosed space section in other words.Can
To know, when the first valve seat 2 is contacted with forming the end wall of the first chamber, the 4th side wall can form wall portion sealing with second sidewall.
Flexible member 5 is arranged at the first chamber 13, and 311 and first valve seat 2 of guide part passes through the core through hole of flexible member 5, wherein,
The second end of flexible member 5 and the following side of mounting portion are fixed, and specifically, the second end and mounting portion of flexible member 5 are relatively adjacent
The sidepiece of nearly guide part is fixed, and the second step wall 252 of the first end of flexible member 5 and the first valve seat is fixed；It is recognised that the
The following side of the mounting portion of two valve seats is provided with the second groove for placing flexible member, and the outside diameter of the 3rd side wall is substantially equal to elasticity
Element inner diameter, can prevent flexible member from moving radially, and prevent 2 unbalance stress of the first valve seat, cause side leakage.It is recognised that the
One valve seat can not also set second step wall, i.e. the 3rd side wall and the diameter in the 4th side wall enclosed space section are identical, at this time,
The second end of flexible member 5 and the first end 23 of the first valve seat 2 are fixed, the first end of flexible member 5 and the peace of the second valve seat
The sidepiece of dress portion relative proximity guide part is fixed, and the portion of being directed only to is arranged at the core through hole of flexible member, in this embodiment party
Formula, the core through-hole diameter of flexible member are substantially equal to guide part outside diameter.
0, Figure 11 and Figure 12 is please referred to Fig.1, compared with another embodiment of second embodiment, the 3rd side of the first valve seat
251 enclosed space diameter of section of wall is substantially equal to 13 diameter of section of the first chamber, and the first valve seat 2 stretches into first through hole 3113, and first
Valve seat 2 is slided along the inner wall of first through hole 3113.The diameter in 253 enclosed space section of the 4th side wall is greater than or equal to guide part
311 outside diameter, and the diameter in 253 enclosed space section of the 4th side wall is substantially equal to the straight of 152 enclosed space section of second sidewall
Footpath, the 4th side wall 253 can be slided along second sidewall 152, when the first valve seat 2 is located at the first operating position, the first valve seat 2 and shape
End wall and second sidewall 152 into the first chamber contact, and the first valve seat 2 being capable of relatively closed first valve port 14；First valve seat 2 is upward
In moving process, the inner wall and second sidewall of first through hole play guiding function to the first valve seat 2；First valve seat 2 is located at the second work
When making position, second step wall 252 is contacted with the end of guide part, and at least partly the first opening is positioned at the top of first end.
In present embodiment, forming the side wall of the second chamber includes the inner wall of first through hole and the inner wall of receiving hole, forms the end of the second chamber
Wall includes first end and the end wall of receiving hole.
In other embodiment, the first valve seat 2 can not also include receiving hole 22, and the second valve port 21 runs through the first valve seat 2,
The first end 23 of first valve seat is the end wall for forming the second chamber；It is recognised that volume control device can also include elasticity member
Part 5, the first valve seat 2 and guide part 311 pass through 5 core through hole of flexible member, the first end and second step of flexible member 5
Wall is fixed, and the second end of flexible member 5 and the mounting portion of the second valve seat are fixed.Equally, flexible member 5 can also be arranged at second
Chamber, spool 32 pass through the through hole of 5 core of flexible member, and second end and the adaptor of flexible member 5 are fixed, flexible member 5
First end and the first end 23 of the first valve seat 2 fix.Preferably, the side wall for forming the second chamber includes first through hole
Inner wall, forming the end wall of the second chamber includes the first end 23 of the first valve seat.The first valve seat of part 2 stretches into guide part 311, can
Lateral pressure with relatively reduced refrigerant to the first valve seat, advantageously reduces side leakage, improves the stability of system.
Compared with prior art, the present invention sets the first valve seat, and the first valve seat can be slided up and down along guide part, Jin Erguan
The first valve port is closed and opened, when the first valve seat closes the first valve port, the openings of sizes of the second valve port is adjusted using spool, realizes stream
Control function is measured, when the first valve seat opens the first valve port, realizes one-way function, can also be between the first valve seat and the second valve seat
Flexible member is set, strengthens the stability of volume control device.
It should be noted that：Above example is merely to illustrate the present invention and not limits technical side described in the invention
Case, such as isotropy defines to "front", "rear", "left", "right", " on ", " under ", although this specification is with reference to above-mentioned reality
Example is applied to present invention has been detailed description, still, it will be understood by those of ordinary skill in the art that, technical field
Technical staff still the present invention can be mutually combined, be changed or equivalent substitution, and all do not depart from the present invention's
The technical solution of spirit and scope and its improvement, should all cover in scope of the presently claimed invention.
Claims (11)
1. a kind of volume control device, including valve body, the first valve seat and spool, the valve body includes the first intercommunicating pore, the second company
Through hole, the first chamber and the first valve port, first intercommunicating pore are connected with first chamber, when first valve port connects, institute
Stating the second intercommunicating pore can be connected by first valve port of opening with first chamber, and first valve seat includes the second valve
Mouthful, relatively described second valve port of the spool is set,
The volume control device includes guide part, and the guide part stretches into first valve seat or first valve seat is stretched
Enter the guide part, first valve seat can make with respect to slip first valve seat include at least the along the guide part
One operating position, the second operating position；The volume control device further includes the second chamber, and the spool is at least partly located at institute
The second chamber is stated, second chamber is connected with first chamber, and when second valve port connects, second chamber can be by beating
Second valve port opened connects second intercommunicating pore；
When first valve seat is located at the first operating position, first valve seat closes first valve port, and the spool can
Moved relative to second valve port, and the aperture that can open or close second valve port or adjusting second valve port is big
It is small；When first valve seat is located at the second operating position, first valve seat opens first valve port, second intercommunicating pore
Connected by first chamber with first intercommunicating pore.
2. volume control device according to claim 1, it is characterised in that the volume control device includes the second valve
Seat, second valve seat include the guide part and first through hole, and the first through hole runs through the guide part,
Second valve port runs through first valve seat, and first valve seat is extending at least partially into the first through hole；
Or first valve seat further includes receiving hole, the opening of the receiving hole is passed through towards the guide part, second valve port
The opposite end of the openend of first valve seat is worn, the receiving hole is connected with second valve port, and first valve seat is opened
The first through hole is stretched at mouth end, or the part guide part stretches into the receiving hole of first valve seat.
3. volume control device according to claim 2, it is characterised in that formed the wall of second chamber include side wall and
End wall,
The first through hole is stretched into the openend of first valve seat, forms the side wall of second chamber and includes the interior of first through hole
The inner wall of wall and the receiving hole, formed the end wall of second chamber include the first valve seat be relatively distant from the first valve port end and
The end wall of the receiving hole；
Or the part guide part stretches into the receiving hole, forming the side wall of second chamber includes inner wall and the institute of first through hole
The inner wall of receiving hole is stated, forming the end wall of second chamber includes the end wall of the receiving hole；
Or second valve port runs through first valve seat, part first valve seat stretches into the first through hole, described in formation
The side wall of second chamber includes the inner wall of first through hole, forms the end wall of second chamber and is relatively distant from described the including the first valve seat
The end of one valve port.
4. according to claim 1-3 any one of them volume control devices, it is characterised in that form the side wall of first chamber
The first opening is provided with, first intercommunicating pore is connected by the described first opening with first chamber, forms first chamber
End wall first valve port is set；
The guide part includes at least one second opening, and second opening runs through the sidepiece of the guide part, in the first chamber
Axial direction, at least partly described second opening above first valve seat, by described second opens by second chamber
Mouth is connected with first chamber；
When first valve seat is located at the first operating position, the end of the first valve port and shape described in the first valve seat relative proximity
End wall into first chamber contacts, and/or the side wall of the sidepiece of at least partly described first valve seat and formation first chamber
Contact, first valve seat close first valve port；When first valve seat is located at the second operating position, in first chamber
Axial direction, at least partly it is described first opening positioned at first valve seat lower section.
5. volume control device according to claim 4, it is characterised in that forming the side wall of first chamber includes first
Side wall, second sidewall and first step wall, the relatively described the first side wall of the second sidewall is adjacent to first valve port, and described
One step wall is arranged between the first side wall and the second sidewall, and the diameter in the first side wall enclosed space section is big
In the diameter of section of the second sidewall enclosed space, first opening is arranged at the first side wall,
The valve body includes the first groove, and first groove is located at the end wall of first chamber and/or the second sidewall.
6. according to the volume control device described in claim 1-5, it is characterised in that the volume control device further includes elasticity
Element, the flexible member include the through hole of core and are arranged at the circulation passage of flexible member sidepiece, the elasticity member
Part includes first end and second end, and first one end of the flexible member is fixed with first valve seat.
7. volume control device according to claim 6, it is characterised in that the sidepiece of first valve seat includes the 3rd side
Wall, the 4th side wall and second step wall, the diameter that the 4th side wall encloses section are more than the outside diameter of the guide part, and described the
Two step walls are arranged between the 3rd side wall and the 4th side wall, and first valve seat and the guide part are through described
The core through hole of flexible member, the first end of the flexible member are fixed with the second step wall, the flexible member
Second end fixed with second valve seat.
8. volume control device according to claim 6, it is characterised in that the flexible member is arranged at described second
Chamber, the spool run through the core through hole of the flexible member,
Second valve seat includes flexible member fixed part, and the flexible member fixed part is arranged at the first through hole, or institute
Stating volume control device includes adaptor, and the adaptor is fixed with second valve seat assembling, and the first of the flexible member
The end wall with the receiving hole is held to fix, the second end of the flexible member and the flexible member fixed part or the adaptor
It is fixed.
9. volume control device according to claim 8, it is characterised in that it is with holes convex that first valve seat is provided with first
Platform, first boss with holes stretch into the first end of the flexible member, and/or the flexible member fixed part or adaptor are set
The second boss with holes is equipped with, second boss with holes stretches into the second end of the flexible member.
10. the volume control device according to claim 7 or 8, it is characterised in that first valve seat and/or described
The relevant position of two valve seats or adaptor sets the second groove, and it is recessed that the both ends of the flexible member are arranged at corresponding described second
Groove.
11. volume control device according to claim 10, it is characterised in that the guide part is provided with stop configurations,
The stop configurations can limit the position of first valve seat, and in the axial direction of first chamber, the stop configurations are set
The second opening lower section is placed in, the stop configurations are snap ring, and the guide part is provided with the depressed area for placing the snap ring,
Or the stop configurations are projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916254.7A CN107975602B (en) | 2016-10-21 | 2016-10-21 | Flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916254.7A CN107975602B (en) | 2016-10-21 | 2016-10-21 | Flow control device |
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| Publication Number | Publication Date |
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| CN107975602A true CN107975602A (en) | 2018-05-01 |
| CN107975602B CN107975602B (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610916254.7A Active CN107975602B (en) | 2016-10-21 | 2016-10-21 | Flow control device |
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| Country | Link |
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| CN (1) | CN107975602B (en) |
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| CN108494142A (en) * | 2018-05-04 | 2018-09-04 | 天津新茂科技发展有限公司 | A kind of direct current generator output shaft end water-tight device |
| CN110836270A (en) * | 2018-08-17 | 2020-02-25 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN112128410A (en) * | 2019-06-24 | 2020-12-25 | 杭州三花研究院有限公司 | Fluid management assembly |
| JP7519265B2 (en) | 2020-10-26 | 2024-07-19 | 株式会社鷺宮製作所 | Motor-operated valve and refrigeration cycle system |
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| CN108494142A (en) * | 2018-05-04 | 2018-09-04 | 天津新茂科技发展有限公司 | A kind of direct current generator output shaft end water-tight device |
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| JP7519265B2 (en) | 2020-10-26 | 2024-07-19 | 株式会社鷺宮製作所 | Motor-operated valve and refrigeration cycle system |
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|---|---|
| CN107975602B (en) | 2021-10-15 |
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