CN107355570A - Expand switch valve - Google Patents
Expand switch valve Download PDFInfo
- Publication number
- CN107355570A CN107355570A CN201610305624.3A CN201610305624A CN107355570A CN 107355570 A CN107355570 A CN 107355570A CN 201610305624 A CN201610305624 A CN 201610305624A CN 107355570 A CN107355570 A CN 107355570A
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- Prior art keywords
- valve
- import
- valve element
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- port
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- 230000008676 import Effects 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 abstract description 26
- 238000010276 construction Methods 0.000 abstract description 4
- 239000010725 compressor oil Substances 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 14
- 239000002826 coolant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 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
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way 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
- 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
-
- 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
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
-
- 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
- F16K1/42—Valve seats
-
- 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
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
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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
-
- 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)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses one kind to expand switch valve, including valve body (500), inner flow passage on the valve body formed with import (501), outlet (502) and connection between the import and the outlet, first valve element (503) and the second valve element (504) are installed on the inner flow passage, first valve element (503) causes the import directly to be connected with the outlet or disconnect connection, and second valve element (504) causes the import to connect or disconnect connection by restriction (505) with the outlet.So, pass through the valve element of integrated installation first on the inner flow passage of same valve body and the second valve element, break-make control and/or the throttling expansion control function of cryogen can be realized, it is simple in construction, it is readily produced and installs, and when expansion switch valve provided by the invention is applied to heat pump, can simplify pipeline connection reduces cost, and the refrigerant charge of whole heat pump is reduced, is easy to compressor oil return.
Description
Technical field
The present invention relates to control valve field, in particular it relates to a kind of expansion switch valve.
Background technology
Sometimes for control refrigerant reducing pressure by regulating flow or only by not throttling in heat pump, and existing electronic expansion
Valve can only control refrigerant to throttle or do not pass through.To meet this demand of heat pump, it is swollen that prior art will use electronics
Swollen valve and electromagnetic switch valve structure in parallel.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.Work as closed electromagnetic valve, 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, because pipeline is connection, so the inlet and outlet of magnetic valve
Also consistent with the refrigerant condition of electric expansion valve inlet and outlet respectively, the refrigerant pressure temperature of magnetic valve inlet and outlet is different,
Easily the internal structure of magnetic valve is caused to damage.Further, since pipeline is relatively more, the refrigerant of whole heat pump can be improved
Charging amount, improve cost.When heat pump works at low temperature, compressor oil return can be relatively difficult, and this complicated structure is also
The oil return of heat pump can be unfavorable for.
The content of the invention
It is an object of the invention to provide one kind to expand switch valve, and the expansion switch valve can realize the break-make to flowing through medium
Control and throttling two kinds of functions of control, and it is simple in construction.
To achieve these goals, the present invention provides a kind of expansion switch valve, including valve body, wherein, formed on the valve body
There are import, outlet and connect inner flow passage between the import and the outlet, the is provided with the inner flow passage
One valve element and the second valve element, first valve element cause the import directly to connect with the outlet or disconnect connection, described the
Two valve elements cause the import to be connected with the outlet by restriction or disconnect connection.
Alternatively, the inner flow passage includes the first flow and second flow channel with the inlet communication respectively, and described the
Formed on one runner formed with the first valve port coordinated with first valve element, the restriction in the second flow channel with shape
As the second valve port coordinated with second valve element, the first flow and the second flow channel are intersected in second valve port
Downstream and with the outlet.
Alternatively, the second flow channel opens up in the same direction with the outlet, and the first flow is formed as and the second
The orthogonal first through hole in road, the import pass through the second through hole and described second for being opened in the second flow channel side wall
Flow passage, the first through hole and second through hole are respectively communicated with the import.
Alternatively, the import is opened on the valve body mutual vertically with the outlet.
Alternatively, first valve element along the coaxial laying of moving direction and first valve port selectively to block or take off
From first valve port.
Alternatively, second valve element along the coaxial laying of moving direction and second valve port selectively to block or take off
From second valve port.
Alternatively, first valve element includes the first valve rod and is connected to the first plug of first valve stem end, and this
One plug is used to be sealed against on the end face of first valve port to block the first flow.
Alternatively, second valve element includes the second valve rod, and the end of second valve rod is formed as taper header structure, described
Second valve port is formed as the taper pore structure being engaged with the taper header structure.
Alternatively, the valve body includes forming the valve seat of the inner flow passage and the first valve casing on the valve seat and the
Two valve casings, are provided with the first electromagnetic drive part for driving first valve element in first valve casing, in second valve casing
The second electromagnetic drive part for driving second valve element is installed, first valve element extends to described from first valve casing
The inner flow passage in valve seat, the inner flow passage that second valve element is extended in the valve seat from second valve casing.
Alternatively, the valve seat is formed as polyhedral structure, first valve casing, second valve casing, the import and
The outlet is separately positioned on the different surfaces of the polyhedral structure, wherein, first valve casing and second valve casing
Installation direction is mutually perpendicular to, and the opening direction of the import and the outlet is mutually perpendicular to.
Pass through above-mentioned technical proposal, by installing the first valve element and the second valve element, energy on the inner flow passage of same valve body
Break-make control and/or the throttling expansion control function of cryogen are enough realized, it is simple in construction, it is readily produced and installs, and as the present invention
When the expansion switch valve of offer is applied to heat pump, can simplify pipeline connection reduces cost, and reduces whole heat pump system
The refrigerant charge of system, it is easy to compressor oil return.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the overlooking the structure diagram for the expansion switch valve that the preferred embodiment for the present invention provides；
Fig. 2 be along the cross-sectional view crossed by Fig. 1 center lines AB-AB, wherein, the first valve port and the second valve port are located
In open mode；
Fig. 3 is the positive structure diagram along a visual angle for the expansion switch valve that the preferred embodiment for the present invention provides；
Fig. 4 be along the cross-sectional view crossed by Fig. 1 center lines AB-AB, wherein, the first valve port is in open mode,
Second valve port is in closure state；
Fig. 5 be along the cross-sectional view crossed by Fig. 1 center lines AB-AB, wherein, the first valve port is in closure state,
Second valve port is in open mode；
Fig. 6 is that the facing structure along another visual angle for the expansion switch valve that the preferred embodiment for the present invention provides is illustrated
Figure；
Fig. 7 be along the cross-sectional view crossed by Fig. 6 center lines AC-AC, wherein, the first valve port is in open mode,
Second valve port is in closure state；
Fig. 8 is the first internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides, wherein, first
Valve port and the second valve port are in open mode；
Fig. 9 is the partial enlarged drawing in A portions in Fig. 8；
Figure 10 is the second internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides, wherein, the
One valve port is in open mode, and the second valve port is closed；
Figure 11 is the 3rd internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides, wherein, the
One valve port is closed, and the second valve port is in open mode.
Description of reference numerals
The import 502 of 500 valve body 501 exports
The plug of 503 first valve element, 513 first valve rod 523 first
The restriction of 504 second 514 second valve rod of valve element 505
The first through hole of 506 516 first valve port of first flow 526
The through hole of 507 second flow channel, 517 second valve port 527 second
The electromagnetic drive part of 510 valve seat, 511 first valve casing 521 first
The electromagnetic drive part of 512 second valve casing 522 second
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where not making opposite explanation, the noun of locality such as " upper and lower, left and right " used is typically phase
For the page of accompanying 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 shown in figure 1, the present invention provides a kind of expansion switch valve, including valve body 500, wherein, on the valve body 500 formed with
Import 501, outlet 502 and connection are in import 501 and export the inner flow passage between 502, and first is provided with inner flow passage
The valve element 504 of valve element 503 and second, the first valve element 503 cause import 501 directly to be connected with outlet 502 or disconnect connection, the second valve
Core 504 causes import 501 to be connected with outlet 502 by restriction 505 or disconnect connection.
Wherein, " directly connection " that the first valve element is realized refers to can be with from the cooling agent of the entrance of import 501 of valve body 500
Cross the first valve element and the outlet 502 of valve body 500 is insusceptibly flowed directly to by inner flow passage, what the first valve element was realized
" disconnecting connection " refers to that the cooling agent from the entrance of import 501 of valve body 500 can not cross the first valve element and can not pass through inside stream
Road flows to the outlet 502 of valve body 500." being connected by restriction " that second valve element is realized refers to the import 501 from valve body 500
Flow to the outlet 502 of valve body 500 after the throttling that the cooling agent of entrance can cross the second valve element and pass through restriction, and the second valve
" disconnect connection " that core is realized refer to the cooling agent from the entrance of import 501 of valve body 500 can not cross the second valve element and can not
The outlet 502 of valve body 500 is flowed to by restriction 505.
So, can be caused from import by the control to the first valve element and the second valve element, expansion switch valve of the invention
501 cooling agents entered at least realize three kinds of states.That is, 1) cut-off state；2) the direct connected state of the first valve element 503 is crossed
State；And 3) cross the throttling mode of communicating of the second valve element 504.
Wherein, the liquid refrigerant of HTHP can turn into the vaporific of low-temp low-pressure again after the throttling of restriction 505
Hydraulic pressure refrigerant, can be refrigerant evaporation create conditions, i.e., the cross-sectional area of restriction 505 be less than outlet 504 horizontal stroke
Sectional area, and by controlling the second valve element, the aperture size of restriction 505 can be adjusted, with controlling stream through restriction 505
Flow, prevent because refrigerant it is very few caused by freeze deficiency, and prevent from causing compressor generation liquid hammer because refrigerant is excessive
Phenomenon.That is, the cooperation of the second valve element 504 and valve body 500 can make it that expanding switch valve has the function of expansion valve.
So, by installing the first valve element 503 and the second valve element 504 on the inner flow passage of same valve body 500, to realize
The control of the break-make of import 501 and outlet 502 and/or throttling control function, it is simple in construction, it is readily produced and installs, and works as this hair
When the expansion switch valve of bright offer is applied to heat pump, it is possible to reduce the refrigerant charge of whole heat pump, reduce into
This, simplifies pipeline connection, the more conducively oil return of heat pump.
As a kind of exemplary inner mounting structure of valve body 500, as shown in Figures 1 to 6, valve body 500 includes being formed
The valve seat 510 of inner flow passage and the first valve casing 511 and the second valve casing 512 on the valve seat 510, in the first valve casing 511
The first electromagnetic drive part 521 for driving the first valve element 503 is installed, is provided with the second valve casing 512 for driving second
Second electromagnetic drive part 522 of valve element 504, the inner flow passage that the first valve element 503 is extended in valve seat 510 from the first valve casing 511,
The inner flow passage that second valve element 504 is extended in valve seat 510 from the second valve casing 512.
Wherein, by the first electromagnetic drive part 521, e.g., magnet coil, the control of power on/off can easily control
The position of first valve element 503, and then control import 501 directly to be connected with outlet 502 or disconnect connection；By being driven to the second electromagnetism
Dynamic portion 522, e.g., magnet coil, the control of power on/off can easily control the position of the second valve element 504, so as to control into
Whether mouth 501 and outlet 502 connect with restriction 505.In other words, shared import 501 and outlet have been installed in parallel in valve body 500
502 electric expansion valve and magnetic valve, it is thus possible to the break-make of expansion switch valve and/or the Automated condtrol of throttling are realized, and
Simplify pipeline trend.
To make full use of the locus of all directions of expansion switch valve, expansion switch valve is avoided to be connected with different pipelines
Interference is produced, valve seat 510 is formed as polyhedral structure, the first valve casing 511, the second valve casing 512, import 501 and the difference of outlet 502
It is arranged on the different surfaces of the polyhedral structure, wherein, the installation direction of the first valve casing 511 and the second valve casing 512 mutually hangs down
Directly, the opening direction of import 501 and outlet 502 is mutually perpendicular to.So, import, export pipeline can be connected to polyhedron knot
On the different surfaces of structure, it can avoid that pipeline arrangement is in disorder, the problem of tangling.
As a kind of typical internal structure of electromagnetic expanding valve, as shown in Figures 1 to 4, inner flow passage include respectively with
First flow 506 and second flow channel 507 that import 501 connects, formed with coordinating with the first valve element 503 on first flow 506
First valve port 516, restriction 505 are formed in second flow channel 507 to be formed as the second valve port coordinated with the second valve element 504
517, first flow 506 and second flow channel 507 are intersected in the downstream of the second valve port 517 and connected with outlet 502.
That is, closing or the opening to the first valve port 516 are realized by converting the position of the first valve element 503, and then controlled
The first flow 506 of connection import 501 and outlet 502 blocking or turning on, so as to realize above-described magnetic valve
Connection or the function of disconnecting connection.Similarly, cutting to the second valve port 517 is realized by converting the position of the second valve element 504
Disconnected or conducting, so as to realize the throttling function of electric expansion valve.
First flow 506 and second flow channel 507 can be respectively communicated with import 501 and outlet with any appropriate arrangement
502, to reduce the overall space-consuming of valve body 500, as shown in figure 5, second flow channel 507 opens up in the same direction with outlet 502, it is first-class
Road 506 is formed as first through hole 526 orthogonal with second flow channel 507, and import 501 is by being opened in the side of second flow channel 507
The second through hole 527 on wall is connected with second flow channel 507, and the through hole 527 of first through hole 526 and second is respectively communicated with import 501.
Wherein, first through hole 526 can be set or be arranged in parallel in spatial vertical with the second through hole 527, and the present invention is not limited this
System, is belonged among protection scope of the present invention.
For the further overall space-consuming for simplifying valve body 500, as shown in Figs. 8 to 11, import 501 is with exporting 502 phases
Mutually vertically it is opened on valve body 500.So, as shown in Fig. 8 to Figure 10, the axis of import 501, export 502 axis (i.e. the
The axis of two runners 507), and the axis of first flow 506 is vertically arranged two-by-two in space, so as to prevent the first valve element 503
Mobile generation with the second valve element 504 is interfered, and can maximumlly utilize the inner space of valve body 500.
As shown in Figure 4 and Figure 5, for ease of realizing the closing of the first valve port 516 and opening, the first valve element 503 is along the side of movement
To with the coaxial laying of the first valve port 516 selectively to block or depart from the first valve port 516.
For ease of realizing the closing of the second valve port 517 and opening, the second valve element 504 is along moving direction and the second valve port 517
It is coaxial to lay selectively to block or depart from the second valve port 517.
Wherein, as shown in fig. 7, the reliability blocked for the first valve element 503 of guarantee to first flow 506, the first valve element 503
The first valve rod 513 can be included and be connected to the first plug 523 of the end of the first valve rod 513, first plug 523 is used for close
Envelope is pressed against on the end face of the first valve port 516 to block first flow 506.
For ease of the aperture size of the restriction 505 of regulation expansion switch valve, as shown in Figure 4 and Figure 5, the second valve element 504
Including the second valve rod 514, the end of second valve rod 514 is formed as taper header structure, and the second valve port 517 is formed as and the taper
The taper pore structure that header structure is engaged.
Wherein, expand switch valve the aperture of restriction 505 can moving up and down to adjust by the second valve element 504, and
Moving up and down for second valve element 504 can be adjusted by the second electromagnetic drive part 522.If expand the restriction 505 of switch valve
Aperture be zero, as shown in figure 4, the second valve element 504 is in extreme lower position, the second valve element 504 blocks the second valve port 517, refrigeration
Agent can not pass through restriction 505, i.e. the second valve port 517 completely；If expansion switch valve restriction 505 has aperture, such as Fig. 5 institutes
Show that there is space between the taper header structure and restriction 505 of the end of the second valve element 504, flow to out again after refrigerant throttling
Mouth 502.If desired, can be by controlling the second electromagnetic drive part 522 so that second during the throttle opening of increase expansion switch valve
Valve element 504 moves up, to cause conical head structure away from restriction 505, so as to realize that the change of the aperture of restriction 505 is big；Phase
Instead, when needing to reduce the aperture of restriction 505 of expansion switch valve, can drive mobile under the phase of the second valve element 504.
In use, when only needing to use the magnetic valve function of expansion switch valve, as shown in Fig. 4, Fig. 7 and Figure 10, first
Valve element 503 departs from the first valve port 516, and the first valve port 516 is in open mode, and the second valve element 504 is in extreme lower position, the second valve
Core 504 blocks throttle orifice 505, from import 501 flow into the refrigerant of inner flow passage completely can not by throttle orifice 505,
The first valve port 516 can only be passed sequentially through, first through hole 526 is flowed into outlet 502.When magnetic valve power off, the first valve element 503 to
Move left, the first plug 523 and the first valve port 516 separate, and refrigerant can pass through from first through hole 526；When magnetic valve leads to
Electricity, the first valve element 503 are moved right, and the first plug 523 and the first valve port 516 are bonded, and refrigerant can not be from first through hole 526
Pass through.
It should be noted that the dotted line with the arrow in Fig. 4 and Figure 10 represent refrigerant using magnetic valve function when
Flow route and trend.
When only needing to use the electric expansion valve function of expansion switch valve, as shown in Fig. 5 and Figure 11, the second valve port 517,
I.e. restriction 505 is in open mode, and the first valve element 503 blocks the first valve port 516, inner flow passage is flowed into from import 501
Refrigerant by first through hole 526 can not can only pass sequentially through the second through hole 527, restriction 505 is flowed into outlet 502, and
And the second valve element 504 can be moved up and down to adjust the size of the aperture of restriction 505.
It should be noted that the dotted line with the arrow in Fig. 5 and Figure 11, which represents refrigerant, is using electric expansion valve function
When flow route and trend.
When needing simultaneously using the magnetic valve function and electric expansion valve function that expand switch valve, such as Fig. 2, Fig. 8 and Fig. 9
It is shown, wherein, dotted line with the arrow represents the glide path and trend of refrigerant, and the first valve element 503 departs from the first valve port
516, the first valve port 516 is in open mode, and restriction 505 is in open mode, and the refrigerant for flowing into inner flow passage can be with
Respectively along first flow 506 and the flow direction of second flow channel 507 outlet 502, so as to have magnetic valve function and electric expansion valve simultaneously
Function.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. one kind expansion switch valve, including valve body (500), it is characterised in that on the valve body (500) formed with import (501), go out
Mouth (502) and connection are pacified in the import (501) and the inner flow passage exported between (502), the inner flow passage
Equipped with the first valve element (503) and the second valve element (504), first valve element (503) causes the import (501) and the outlet
(502) directly connect or disconnect connection, second valve element (504) causes the import (501) and the outlet (502) to pass through
Restriction (505) connects or disconnected connection.
2. expansion switch valve according to claim 1, it is characterised in that the inner flow passage include respectively with the import
(501) first flow (506) and second flow channel (507) of connection, on the first flow (506) formed with first valve
The first valve port (516) that core (503) coordinates, the restriction (505) formed in the second flow channel (507) be formed as with
The second valve port (517) that second valve element (504) coordinates, the first flow (506) and the second flow channel (507) cross
Connected in the downstream of second valve port (517) and with the outlet (502).
3. expansion switch valve according to claim 2, it is characterised in that the second flow channel (507) and the outlet
(502) open up in the same direction, the first flow (506) is formed as and the second flow channel (507) orthogonal first through hole
(526), the import (501) passes through the second through hole (527) and described second for being opened in the second flow channel (507) side wall
Runner (507) is connected, and the first through hole (526) and second through hole (527) are respectively communicated with the import (501).
4. the expansion switch valve according to any one in claim 1-3, it is characterised in that the import (501) and institute
Outlet (502) is stated to be opened in mutual vertically on the valve body (500).
5. the expansion switch valve according to Claims 2 or 3, it is characterised in that first valve element (503) is along moving direction
With the coaxial laying of first valve port (516) selectively to block or depart from first valve port (516).
6. the expansion switch valve according to Claims 2 or 3, it is characterised in that second valve element (504) is along moving direction
With the coaxial laying of second valve port (517) selectively to block or depart from second valve port (517).
7. expansion switch valve according to claim 5, it is characterised in that first valve element (503) includes the first valve rod
(513) and the first plug (523) of the first valve rod (513) end is connected to, first plug (523) is used to be sealed against
To block the first flow (506) on the end face of first valve port (516).
8. expansion switch valve according to claim 6, it is characterised in that second valve element (504) includes the second valve rod
(514), the end of second valve rod (514) is formed as taper header structure, and second valve port (517) is formed as and the conical head
The taper pore structure that structure is engaged.
9. expansion switch valve according to claim 1, it is characterised in that the valve body (500) includes forming the inside
The valve seat (510) of runner and the first valve casing (511) and the second valve casing (512) on the valve seat (510), first valve
The first electromagnetic drive part (521) for driving first valve element (503), second valve casing are installed in shell (511)
(512) the second electromagnetic drive part (522) for driving second valve element (504), first valve element (503) are installed in
The inner flow passage extended to from first valve casing (511) in the valve seat (510), second valve element (504) is from institute
State the inner flow passage that the second valve casing (512) is extended in the valve seat (510).
10. expansion switch valve according to claim 9, it is characterised in that the valve seat (510) is formed as polyhedron knot
Structure, first valve casing (511), second valve casing (512), the import (501) and the outlet (502) are separately positioned on
On the different surfaces of the polyhedral structure, wherein, the installation direction of first valve casing (511) and second valve casing (512)
It is mutually perpendicular to, the opening direction of the import (501) and the outlet (502) is mutually perpendicular to.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305624.3A CN107355570A (en) | 2016-05-10 | 2016-05-10 | Expand switch valve |
| US16/300,431 US20190257560A1 (en) | 2016-05-10 | 2017-05-03 | Expansion switch valve |
| EP17795473.2A EP3453929A4 (en) | 2016-05-10 | 2017-05-03 | Expansion switch valve |
| PCT/CN2017/082946 WO2017193855A1 (en) | 2016-05-10 | 2017-05-03 | Expansion switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305624.3A CN107355570A (en) | 2016-05-10 | 2016-05-10 | Expand switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107355570A true CN107355570A (en) | 2017-11-17 |
Family
ID=60271218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610305624.3A Pending CN107355570A (en) | 2016-05-10 | 2016-05-10 | Expand switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355570A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732697A (en) * | 2018-07-18 | 2020-01-31 | 浙江三花汽车零部件有限公司 | Expansion valve processing method and expansion valve |
| CN112129000A (en) * | 2019-06-24 | 2020-12-25 | 杭州三花研究院有限公司 | Thermal management system |
| WO2022242764A1 (en) * | 2021-05-21 | 2022-11-24 | 华为技术有限公司 | Multi-way valve, thermal management system, and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4109055B2 (en) * | 2002-08-30 | 2008-06-25 | 株式会社不二工機 | Electric expansion valve |
| CN201547282U (en) * | 2009-10-19 | 2010-08-11 | 中国航天科技集团公司烽火机械厂 | Digital response switch valve |
| CN104728483A (en) * | 2013-12-20 | 2015-06-24 | 杭州三花研究院有限公司 | Flow control valve and control method thereof and refrigeration system |
| CN205978641U (en) * | 2016-05-10 | 2017-02-22 | 比亚迪股份有限公司 | Expansion switch valve |
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2016
- 2016-05-10 CN CN201610305624.3A patent/CN107355570A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4109055B2 (en) * | 2002-08-30 | 2008-06-25 | 株式会社不二工機 | Electric expansion valve |
| CN201547282U (en) * | 2009-10-19 | 2010-08-11 | 中国航天科技集团公司烽火机械厂 | Digital response switch valve |
| CN104728483A (en) * | 2013-12-20 | 2015-06-24 | 杭州三花研究院有限公司 | Flow control valve and control method thereof and refrigeration system |
| CN205978641U (en) * | 2016-05-10 | 2017-02-22 | 比亚迪股份有限公司 | Expansion switch valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732697A (en) * | 2018-07-18 | 2020-01-31 | 浙江三花汽车零部件有限公司 | Expansion valve processing method and expansion valve |
| CN112129000A (en) * | 2019-06-24 | 2020-12-25 | 杭州三花研究院有限公司 | Thermal management system |
| WO2022242764A1 (en) * | 2021-05-21 | 2022-11-24 | 华为技术有限公司 | Multi-way valve, thermal management system, and automobile |
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Application publication date: 20171117 |