CN108253157A - Expand switch valve - Google Patents
Expand switch valve Download PDFInfo
- Publication number
- CN108253157A CN108253157A CN201611249725.XA CN201611249725A CN108253157A CN 108253157 A CN108253157 A CN 108253157A CN 201611249725 A CN201611249725 A CN 201611249725A CN 108253157 A CN108253157 A CN 108253157A
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- China
- Prior art keywords
- spool
- flow
- flow channel
- import
- outlet
- Prior art date
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- 230000008676 import Effects 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000005389 magnetism Effects 0.000 claims description 10
- 230000003139 buffering effect Effects 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 23
- 239000010725 compressor oil Substances 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 9
- 239000002826 coolant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
- F25B41/345—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids
-
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
-
- 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
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
-
- 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
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/048—Electromagnetically actuated valves
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
-
- 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
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The disclosure provides a kind of expansion switch valve, including valve body, import, the inner flow passage of outlet and connection between import and export are formed on the valve body, on inner flow passage installation there are one spool and with respectively with the first flow of outlet and second flow channel, throttle orifice is formed in second flow channel, spool moves back and forth have the first operating position and the second operating position in an axial direction, in the first operating position, spool cut-off second flow channel causes inlet and outlet directly to connect, in the second operating position, spool cut-off first flow causes import to be connected by throttle orifice.By switching the first operating position and the second operating position of the spool, the direct connection control of refrigerant or throttling expansion control function can be realized, it is simple in structure, it is readily produced and installs；When the expansion switch valve that the disclosure provides is applied to heat pump system, can simplify pipeline connection reduces cost, and reduce the refrigerant charge of entire heat pump system, convenient for compressor oil return.
Description
Technical field
A kind of this disclosure relates to control valve field, and in particular, to expansion switch valve.
Background technology
Sometimes for control refrigerant reducing pressure by regulating flow or only by not throttling in heat pump system, and existing electronic expansion
Valve can only control refrigerant to throttle or do not pass through.To meet this demand of heat pump system, it is swollen that the prior art will use electronics
Swollen valve and the structure of electromagnetic switch valve parallel connection.This structure needs to use two three-way connections, six roots of sensation pipeline, and structure is more multiple
It is miscellaneous, it is not easy to install.When solenoid valve is closed, during using electric expansion valve, electric expansion valve import is the liquid system of medium temperature high pressure
Cryogen, electronic expansion valve outlet are the liquid refrigerant of low-temp low-pressure, since pipeline is connection, so the inlet and outlet of solenoid valve
Also consistent with the refrigerant condition of electric expansion valve inlet and outlet respectively, the refrigerant pressure temperature of solenoid valve inlet and outlet is different,
Easily the internal structure of solenoid valve is damaged.In addition, since pipeline is relatively more, the refrigerant of entire heat pump system can be improved
Charging amount improves cost.When heat pump system works at low temperature, compressor oil return can be relatively difficult, and the structure of this complexity is also
It can be unfavorable for the oil return of heat pump system.
Invention content
The purpose of the disclosure is to provide a kind of expansion switch valve, which can realize the break-make to flowing through medium
Control and throttling two kinds of functions of control, and it is simple in structure.
To achieve these goals, the disclosure provides a kind of expansion switch valve, including valve body, wherein, it is formed on the valve body
There is the inner flow passage of import, outlet and connection between the import and the outlet, one is equipped on the inner flow passage
A spool and with the first flow and second flow channel of the outlet, being formed with throttling in the second flow channel respectively
Hole, the spool can be moved back and forth in an axial direction to have the first operating position and the second operating position, in the described first work
Position, the spool ends the second flow channel and the import is directly connected with the outlet, in second working position
It puts, the spool ends the first flow and the import is connected by the throttle orifice.
Optionally, the inner flow passage include be used for for the spool slide slideway, the slideway by third flow channel with
The inlet communication, the slideway pass through the first flow and second flow channel and the outlet, the spool selection respectively
Block the first flow and second flow channel to property.
Optionally, the bottom end pad of the slideway is equipped with buffer spring.
Optionally, on the axial movement direction of the spool, the third flow channel is located at the first flow and second
Between runner.
Optionally, the slideway is opened in vertically downwardly on the valve body.
Optionally, the first flow, the second flow channel and the third flow channel are each perpendicular to the installation of slide track.
Optionally, what the first flow and third flow channel were respectively formed as on the side wall for being opened in the slideway is first logical
Hole and third through-hole, the second flow channel are formed as being opened in the throttle orifice on the side wall of the slideway.
Optionally, the valve body includes the valve seat for forming the inner flow passage, is equipped with magnetic valve rod on the valve seat, the magnetic
Property valve rod and the valve seat between electromagnetic drive part is installed, to drive the spool reciprocal in an axial direction by the magnetic valve rod
It is mobile.
Optionally, limiting section is formed between the magnetic valve rod and the valve seat, to be acted in the electromagnetic drive part
In the movement of the magnetic valve rod time limit fixed magnetic valve rod.
Optionally, the limiting section includes the limited step slot being formed on the valve seat and is formed in the magnetism
Defining flange on the end of valve rod, the defining flange are shape-ordinatedly inserted into the limited step slot.
Optionally, avoidance groove is formed on the end face of the magnetic valve rod, for avoiding the spool.
Optionally, the valve seat is formed as polyhedral structure, and the magnetism valve rod, the import and the outlet are set respectively
It puts on the different surfaces of the polyhedral structure, wherein, the import and the outlet are opened in the valve body in parallel to each other
Opposite sides, the magnetism valve rod installation direction is mutually perpendicular to respectively with the import and the outlet.
Through the above technical solutions, installing a spool on the inner flow passage of same valve body, and switch the of the spool
One operating position and the second operating position, so as to realize the direct connection control of refrigerant or throttling expansion control function,
And it is simple in structure, it is readily produced and installs；In addition, when the expansion switch valve that the disclosure provides is applied to heat pump system, it can be with
Simplifying pipeline connection reduces cost, and reduce the refrigerant charge of entire heat pump system, convenient for compressor oil return.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure, but do not form the limitation to the disclosure together.In the accompanying drawings：
Fig. 1 is the dimensional structure diagram of expansion switch valve provided according to an illustrative embodiment of the disclosure；
Fig. 2 is the cross-sectional view of expansion switch valve provided according to an illustrative embodiment of the disclosure,
Wherein, first flow is in the conduction state, and second flow channel is in cut-off state；
Fig. 3 is the cross-sectional view of expansion switch valve provided according to an illustrative embodiment of the disclosure,
Wherein, second flow channel is in the conduction state, and first flow is in cut-off state；
Fig. 4 is the internal structure schematic diagram of expansion switch valve provided according to an illustrative embodiment of the disclosure,
Wherein, first flow is in the conduction state, and second flow channel is in cut-off state；
Fig. 5 is the internal structure schematic diagram of expansion switch valve provided according to an illustrative embodiment of the disclosure,
Wherein, second flow channel is in the conduction state, and first flow is in cut-off state.
Reference sign
500 valve body, 501 import 502 exports
503 spool, 504 slideway, 505 second flow channel
515 throttle orifice, 506 third flow channel, 516 third through-hole
507 first flow, 517 first through hole, 508 buffer spring
510 valve seat 511,512 electromagnetic drive part of magnetic valve rod
513 limited step slot, 514 defining flange 515 avoids groove
Specific embodiment
The specific embodiment of the disclosure is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the case where not making to illustrate on the contrary, the noun of locality such as " upper and lower, left and right " used is typically phase
For the page of attached drawing, " upstream, downstream " is relative to medium, e.g., for the flow direction of refrigerant, is had
Body, it is downstream towards the flow direction of refrigerant, is upstream away from the flow direction of refrigerant, " inside and outside " refers to corresponding portion
Part profile it is interior with it is outer.
As depicted in figs. 1 and 2, the disclosure provides a kind of expansion switch valve, including valve body 500, wherein, on the valve body 500
The inner flow passage of import 501, outlet 502 and connection between import 501 and outlet 502 is formed with, is installed on inner flow passage
There are one spool 503 and there is the first flows 507 connected respectively with outlet 502 and second flow channel 505, in second flow channel 505
With throttle orifice 515, spool 503 can be moved back and forth in an axial direction to have the first operating position and the second operating position,
One operating position, spool 503 ends second flow channel 505 so that import 501 and exporting 502 directly connects, in the second operating position,
Spool 503 ends first flow 507 so that import 501 is connected with outlet 502 by throttle orifice 515.
In other words, the first flow 507 of shunting connection import 501 and outlet 502 is formed on the inner flow passage of valve body 500
With second flow channel 505, and spool 503 is also equipped on the inner flow passage, so that the import 501 is directly connected with outlet 502
Or it is connected by the throttle orifice 515.
Wherein, " directly connection " that spool 503 is realized refers to can be with from the cooling agent of the entrance of import 501 of valve body 500
It crosses spool 503 and the outlet 502 of valve body 500 is insusceptibly flowed directly to by inner flow passage.What spool 503 was realized
" being connected by throttle orifice " refers to that the cooling agent from the entrance of import 501 of valve body 500 can cross spool 503 to pass through throttle orifice
The outlet 502 of valve body 500 is flowed to after 515 throttling.
In this way, controlled by the position to spool 503, that is, switch the first operating position and the second work of the spool 503
Position, so that the expansion switch valve of the disclosure can cause the cooling agent entered from import 501 to realize two states.That is,
1) the direct connected state of spool 503 is crossed；And 2) cross the throttling connected state of adjusting valve core 503.
Wherein, the liquid refrigerant of high temperature and pressure can become the mist of low-temp low-pressure after the throttling of throttle orifice 515
Hydraulic pressure refrigerant can be that the evaporation of refrigerant creates conditions, i.e. the cross-sectional area of throttle orifice 515 is respectively less than import 501, outlet
502 and the cross-sectional area of first flow 507.That is, the cooperation of spool 503 and valve body 500, which can to expand, closes valve with swollen
The function of swollen valve.
In this way, installing a spool 503 on the inner flow passage of same valve body 500, and switch the first work of the spool 503
Make position and the second operating position, to realize that import 501 connects control or throttling control function, structure with the direct of outlet 502
Simply, it is readily produced and installs；And when the expansion switch valve that the disclosure provides is applied to heat pump system, it is possible to reduce entire heat
The refrigerant charge of pumping system reduces cost, simplifies pipeline connection, the more conducively oil return of heat pump system.
As a kind of illustrative inner mounting structure of valve body 500, as shown in Figures 1 to 5, valve body 500 includes being formed
The valve seat 510 of inner flow passage is equipped with magnetic valve rod 511 on the valve seat 510, is installed between the magnetism valve rod 511 and valve seat 510
There is electromagnetic drive part 512, spool 503 to be driven to move back and forth in an axial direction by magnetic valve rod 511.
Wherein, by electromagnetic drive part 512, e.g., electromagnetic coil, the control of power on/off can easily control spool
503 the first operating positions of switching and the second operating position, and then import 501 is controlled directly to be connected with outlet 502 or pass through section
Discharge orifice 515 connects.Specifically, when electromagnetic drive part 512 is powered, the magnetic field of magnetic valve rod 511 can be strengthened, so that magnetic
Property valve rod 511 can overcome the gravity of spool 503 and adsorb spool 503, and spool 503 is moved to slideway 504 under magneticaction
Top so that spool 503 end one of first flow 507 and second flow channel 505；When electromagnetic drive part 512 is disconnected
When electric, the self-field of magnetic valve rod 511 overcomes the gravity of spool 503 insufficient for magnetic valve rod 511 and adsorbs spool
503, spool 503 under gravity, falls to the bottom of slideway 504, so that spool 503 ends first flow 507
The other of with second flow channel 505.
In other words, the electric expansion valve and solenoid valve of shared import 501 and outlet 502 are installed in parallel in valve body 500, because
And it can realize the break-make of expansion switch valve or the automation control of throttling, and simplify pipeline trend.
When as shown in Figures 2 and 3, to avoid the energization of electromagnetic drive part 512, magnetic valve rod 511 is under the action of electromagnetic force
Movement, is formed with limiting section, to act on magnetic valve rod 511 in electromagnetic drive part 512 between magnetic valve rod 511 and valve seat 510
When limit the movement of magnet valves bar 511.
Wherein, limiting section as shown in Figures 2 and 3, can be assembled to there are many embodiment for convenience of magnetic valve rod 511
On valve seat 510, limiting section includes the limited step slot 513 being formed on valve seat 510 and the end for being formed in magnetic valve rod 511
Defining flange 514 in portion, the defining flange 514 are shape-ordinatedly inserted into limited step slot 513.In this manner it is possible to
Easily magnetic valve rod 511 is installed on valve seat 510.In addition, as shown in Fig. 2, after electromagnetic drive part 512 is powered, limit
The mutual cooperation of flange 514 and limit step groove 513, can inhibit magnetic valve rod 511 to be moved downward under the action of electromagnetic force.
Further, it is securely assembled on valve seat 510 for ease of magnetic valve rod 511, which can be with shape
As the multistage limited step slot being sequentially connected, and the magnetic valve rod 511 in bore edge of the notch of the multistage limited step slot is slotting
Enter direction to be gradually reduced, so as to the dismounting of magnetic valve rod 511.
To increase shift motion of the spool 503 in slideway 504 (being discussed further below), as shown in Fig. 2, the magnetism valve rod
It is formed on 511 end face and avoids groove 515, for avoiding spool 503.That is, when magnetic valve rod 511 adsorbs upper valve core 503
Afterwards, the part of spool 503, which can be contained in, avoids in groove 515, so that spool 503 is in cut-off first flow 507 or the
While two runner 505, spool 503 is avoided to end third flow channel 506 (being discussed further below).
Spatial position for all directions for making full use of expansion switch valve, avoids expansion switch valve from being connected with different pipelines
Interference is generated, valve seat 510 is formed as polyhedral structure, and valve seat 510 is formed as polyhedral structure, magnetic valve rod 511, import 501
It is separately positioned on the different surfaces of the polyhedral structure with outlet 502, wherein, import 501 and outlet 502 are opened in parallel to each other
The opposite sides of valve body 500 is located at, magnetic 511 installation direction of valve rod is mutually perpendicular to respectively with import 501 and outlet 502.In this way,
Import, export pipeline can be connected on the different surfaces of polyhedral structure, can avoid that pipeline arrangement is in disorder, asking of tangling
Topic.
As a kind of typical internal structure of electromagnetic expanding valve, as shown in Figures 2 to 5, inner flow passage includes supplying
The slideway 504 that spool 503 slides, the slideway 504 are connected by third flow channel 506 with import 501, which passes through respectively
First flow 507 and second flow channel 505 are connected with outlet 502, and spool 503 selectively blocks first flow 507 and second
Road 505.
That is, it is selectively turned on by the position of the transformation spool 503 in slideway 504 by import 501, third flow channel
506th, first flow 507 and outlet 502 composition through-flow runners or by import 501, third flow channel 506,505 and of second flow channel
The throttling runners of 502 composition of outlet, so as to realize the connectivity capabilities of above-described solenoid valve and electric expansion valve
Throttling function.
For protect spool 503, while allow spool 503 Design of length it is shorter, so as to increase the mobile row of spool 503
Journey, the bottom end pad of slideway 504 are equipped with buffer spring 508.In this way, when electromagnetic drive part 512 switches to power-off shape by conduction state
During state, spool 503 can avoid directly generating collision with the bottom of slideway 504 during falling, and influence spool 503 uses the longevity
Life；In addition, buffer spring 508 also adds height of the spool 503 in slideway 504, more conducively end second flow channel 505.
To ensure that spool 503 can selectively block second flow channel or first flow, as shown in Fig. 2, in spool 503
It moves axially on direction, third flow channel 506 is between first flow 507 and second flow channel 505.
Slideway 504 can be laid in valve body in any suitable manner, to prevent spool 503 by unnecessary friction
Power extends the service life of spool 503, and as shown in Figures 2 to 5, slideway 504 is opened in vertically downwardly on valve body 500.
Total length to ensure inner flow passage is most short, the time that refrigerant flows through inner flow passage is reduced, such as Fig. 2 to Fig. 5 institutes
Show, first flow 507, second flow channel 505 and third flow channel 506 are each perpendicular to slideway 504 and set.By this method, can guarantee from
The refrigerant of third flow channel outflow rapidly flows towards second flow channel or first flow.
For convenience of processing, simplify the structure of electromagnetic expanding valve, first flow 507 and third flow channel 506 are respectively formed as out
The first through hole 517 and third through-hole 516 being located on the side wall of slideway 504, second flow channel 505 are formed as being opened in slideway 504
Side wall on throttle orifice 515.
In use, when needing the solenoid valve function using expansion switch valve, as shown in Figure 2 and Figure 4, magnetic driving portion
512 are powered, and spool 503 is attracted on magnetic valve rod 511, are moved to the first operating position, end second flow channel 505, from import
501 refrigerants for flowing into inner flow passage cannot can only pass sequentially through third through-hole 516, slideway by throttle orifice 515 completely
504 and first through hole 517 flow into outlet 502 in.
It should be noted that the dotted line with the arrow in Fig. 2 and Fig. 4 represents stream of the refrigerant when using solenoid valve function
Access line and trend.
When only needing the electric expansion valve function using expansion switch valve, as shown in Figure 3 and Figure 5, magnetic driving portion 512
Power-off, spool 503 are detached from magnetic valve rod 511, are moved to the second operating position, end first flow 507, are flowed into from import 501
Refrigerant to inner flow passage can not can only pass sequentially through third through-hole 516, slideway 504 and throttle orifice by first through hole 517
515 flow into outlet 502.
It should be noted that the dotted line with the arrow in Fig. 3 and Fig. 5 represents refrigerant when using electric expansion valve function
Flow route and trend.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought should equally be considered as disclosure disclosure of that.
Claims (12)
1. a kind of expansion switch valve, including valve body (500), which is characterized in that import (501) is formed on the valve body (500), is gone out
Mouth (502) and connection are pacified in the import (501) and the inner flow passage exported between (502), the inner flow passage
Dress is there are one spool (503) and has the first flow (507) connected respectively with the outlet (502) and second flow channel (505),
There is throttle orifice (515), the spool (503) can move back and forth have first in an axial direction on the second flow channel (505)
Operating position and the second operating position, in first operating position, the spool (503) ends the second flow channel (505)
So that the import (501) directly connects with the outlet (502), and in second operating position, spool (503) cut-off
The first flow (507) is so that the import (501) is connected with the outlet (502) by the throttle orifice (515).
2. expansion switch valve according to claim 1, which is characterized in that the inner flow passage includes being used to supply the spool
(503) slideway (504) slided, the slideway (504) are connected by third flow channel (506) with the import (501), the slideway
(504) it is connected respectively by the first flow (507) and second flow channel (505) with the outlet (502), the spool
(503) first flow (507) and second flow channel (505) are selectively blocked.
3. expansion switch valve according to claim 2, which is characterized in that the bottom end pad of the slideway (504) is equipped with buffering
Spring (508).
4. expansion switch valve according to claim 2, which is characterized in that in the axial movement direction of the spool (503)
On, the third flow channel (506) is between the first flow (507) and second flow channel (505).
5. expansion switch valve according to claim 2, which is characterized in that the slideway (504) is opened in vertically downwardly
On the valve body (500).
6. expansion switch valve according to claim 5, which is characterized in that the first flow (507), the second flow channel
(505) and the third flow channel (506) is each perpendicular to the slideway (504) setting.
7. the expansion switch valve according to any one of claim 2 to 6, which is characterized in that the first flow (507) and
Third flow channel (506) is respectively formed as first through hole (517) and third through-hole on the side wall for being opened in the slideway (504)
(516), the second flow channel (505) is formed as being opened in the throttle orifice (515) on the side wall of the slideway (504).
8. expansion switch valve according to claim 1, which is characterized in that the valve body (500) is including forming the inside
The valve seat (510) of runner is equipped with magnetic valve rod (511) on the valve seat (510), the magnetism valve rod (511) and the valve seat
(510) electromagnetic drive part (512) is installed, to drive the spool (503) in an axial direction by the magnetic valve rod (511) between
It moves back and forth.
9. expansion switch valve according to claim 8, which is characterized in that the magnetism valve rod (511) and the valve seat
(510) limiting section is formed between, to limit institute when the electromagnetic drive part (512) acts on magnetic valve rod (511)
State the movement of magnetic valve rod (511).
10. expansion switch valve according to claim 9, which is characterized in that the limiting section includes being formed in the valve seat
(510) limited step slot (513) on and the defining flange (514) being formed on the end of the magnetic valve rod (511),
The defining flange (514) is shape-ordinatedly inserted into the limited step slot (513).
11. expansion switch valve according to claim 10, which is characterized in that shape on the end face of the magnetism valve rod (511)
Into there is avoidance groove (515), for avoiding the spool (503).
12. expansion switch valve according to claim 8, which is characterized in that the valve seat (510) is formed as polyhedron knot
Structure, the magnetism valve rod (511), the import (501) and the outlet (502) are separately positioned on the difference of the polyhedral structure
On surface, wherein, the import (501) and the outlet (502) are opened in opposite the two of the valve body (500) in parallel to each other
Side, described magnetism valve rod (511) installation direction are mutually perpendicular to respectively with the import (501) and the outlet (502).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249725.XA CN108253157B (en) | 2016-12-29 | 2016-12-29 | Expansion switch valve |
| PCT/CN2017/117806 WO2018121412A1 (en) | 2016-12-29 | 2017-12-21 | Expansion switch valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249725.XA CN108253157B (en) | 2016-12-29 | 2016-12-29 | Expansion switch valve |
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| CN108253157A true CN108253157A (en) | 2018-07-06 |
| CN108253157B CN108253157B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611249725.XA Active CN108253157B (en) | 2016-12-29 | 2016-12-29 | Expansion switch valve |
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| Country | Link |
|---|---|
| CN (1) | CN108253157B (en) |
| WO (1) | WO2018121412A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413938A (en) * | 2020-12-07 | 2021-02-26 | 浙江农林大学暨阳学院 | Automobile air conditioner thermal expansion valve |
| RU2789371C1 (en) * | 2022-03-26 | 2023-02-02 | Общество с ограниченной ответственностью "НОВАЯ СЕРВИСНАЯ КОМПАНИЯ" | Valve body |
| WO2024140051A1 (en) * | 2022-12-26 | 2024-07-04 | 联合汽车电子有限公司 | Electromagnetic electronic expansion valve, thermal management system and vehicle |
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| CN109915623A (en) * | 2019-04-16 | 2019-06-21 | 郑州鼎盛新技术有限公司 | A kind of box ceramic triple valve convenient for switching runner online |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108253157B (en) | 2020-05-22 |
| WO2018121412A1 (en) | 2018-07-05 |
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