CN106594320A - Slide type switch valve and refrigerating cycle system - Google Patents
Slide type switch valve and refrigerating cycle system Download PDFInfo
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- CN106594320A CN106594320A CN201610855547.9A CN201610855547A CN106594320A CN 106594320 A CN106594320 A CN 106594320A CN 201610855547 A CN201610855547 A CN 201610855547A CN 106594320 A CN106594320 A CN 106594320A
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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
- 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
- F16K11/0655—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 with flat slides
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02731—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one three-way valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Multiple-Way Valves (AREA)
- Sliding Valves (AREA)
Abstract
The invention provides a slide type switch valve and refrigerating cycle system, wherein the system can reduce middle flow in mode switching, can easily obtain pressure difference for switching modes, and can prevent a high pressure side and lower pressure side flow reduction in a cooling mode and a heating mode; In the four-way switching valve (10), the valve member (24) of a spool (12) has a concave bowl portion (25) and a flange portion (26) extending outwardly; one side of the flange portion is provided with a first inner protrusion (27A) protruding to the bowl portion and a first outer protrusion (28A) protruding to the outer side, and the other side is provided with a second inner protrusion (27B) and a second outer protrusion (28B); In the first passing position, the first inner protrusion and the first outer protrusion are spaced apart from the inside of the peripheral edge of the first port (11C) by a predetermined gap; In the second passing position, the second inner protrusion and the second outer protrusion are spaced apart from the inner side of the peripheral edge of the second port (11D) by a predetermined gap.
Description
Technical field
The present invention relates to slidingtype switching valve and refrigerating circulation system.
Background technology
In the past, as the freeze cycle utilized in the air conditioner of air-conditioning indoors etc., using the circulation for making cold-producing medium
The freeze cycle of direction reversion, so that cold-producing medium is made when refrigerating mode (refrigeration) operates via compressor, outdoor heat exchanger, swollen
Swollen valve and indoor heat exchanger and to compressor circulation, and make when heating mode (heating) operates cold-producing medium via compressor,
Indoor heat exchanger, expansion valve and outdoor heat exchanger and to compressor circulation.As the cold-producing medium made in such freeze cycle
Closed loop flow path reversion flow channel switching valve (so-called four-way switching valve), be widely used for possessing and slidably can be arranged on
The slidingtype switching valve of the valve element of the inside of valve body.
It is provided with the valve body of slidingtype switching valve：It is connected to make high-pressure refrigeration via D joints with the outlet of compressor
The inflow port that agent is flowed into；It is connected to make cold-producing medium to the outflow end of compressor circulation via S joints with the suction inlet of compressor
Mouthful；The indoor side ports (first port) being connected with indoor heat exchanger via E joints；And via C joints and outdoor heat exchanger
The outdoor side ports (second port) of connection.And, slidingtype switching valve switches to following two modes：Using to side sideslip
The valve element for having moved makes outflow port connect with indoor side ports, and using inflow port is made inside valve body with outdoor side ports
The refrigerating mode of connection；And outflow port is connected with outdoor side ports using the valve element to the opposing party's Slideslip, and
Using the heating mode for making inflow port connect with indoor side ports inside valve body.
As such slidingtype switching valve, it is proposed that a kind of to realize when preventing the switching of refrigerating mode and heating mode
Switching it is bad, and refrigerating mode and heating mode in cold-producing medium the construction that guarantees of flow (for example, referring to patent documentation
1).The conventional slidingtype switching valve described in the patent documentation 1 is illustrated with reference to Figure 11, Figure 12.
As shown in figure 11, slidingtype switching valve 100 is configured to possess valve seat 104, and is sliding freely located at the valve seat 104
Valve element 105, wherein, the valve seat 104 has and flows out port 101, first port 102 and second port 103.105 shape of valve element
Become with the concave bowl portion 106 of 104 side opening of valve seat, and extend outward and phase from the opening edge in this bowl of portion 106
For the sliding surface 107 that valve seat 104 slides.As shown in figure 12, to be formed as its opening edge longer in glide direction in bowl portion 106
Oval (oval) shape, is provided with protuberance 108,109 prominent to the interior side in bowl portion 106 respectively at its long side direction both ends.
Valve element 105 is configured to slide between following two positions：Outflow port 101 and are made using bowl portion 106
Single port 102 connect and do not make second port 103 connect first position；And made using bowl portion 106 as shown in Figure 12 (A)
Flow out the second position that port 101 is connected with second port 103 and do not make the connection of first port 102.In first position, protuberance
A part for 108 pairs of first ports 102 is covered, and a part for 109 convection current exit port 101 of protuberance is covered, and
And, such as shown in Figure 12 (A), in the second position, a part for 108 convection current exit port 101 of protuberance is covered, and protuberance 109
A part for second port 103 is covered, thus produced outflow port 101, first port 102 and second port
The diminution of 103 flow path area is suppressed to Min..
As shown in Figure 12 (B), in the centre position that valve element 105 is moved between the first location and the second location, due to prominent
The periphery for going out portion 108 along first port 102 is present, so first port 102 becomes non-interconnected with the inside in bowl portion 106, and
As periphery of the protuberance 109 along second port 103 is present, so second port 103 becomes non-company with the inside in bowl portion 106
It is logical.That is, in centre position, first port 102 is not connected via the inside in bowl portion 106 with second port 103, so as to suppress cold
But the increase of the pressure inside the bowl portion 106 during the switching of pattern and heating mode, and then easily maintain high-pressure side and low-pressure side
Pressure differential.Also, in centre position, first port 102 and second port 103 are covered using protuberance 108,109, from
Even and if do not expand and flow out the distance between port 101, first port 102 will not be also connected with second port 103.
As described above, conventional slidingtype switching valve 100 possesses the protuberance 108,109 prominent to the interior side in bowl portion 106,
So as in the centre position of valve element 105, make first port 102 become non-company with second port 103 via the inside in bowl portion 106
Logical, realizing that switching is bad so as to suppress the reduction of pressure differential during Vavle switching prevents, and realizes slidingtype switching valve 100
Maximization suppression.Also, in conventional slidingtype switching valve 100, refrigerating mode and heating mode (valve element 105
First position and the second position) in, by suppressing the outflow port 101 caused by protuberance 108,109, first port 102
And the diminution of the flow path area of second port 103, realize the suppression of the flow-reduction of low side refrigerant.
Prior art literature
Patent documentation 1：Japanese real public clear 63-12282 publications
However, in conventional slidingtype switching valve 100, due to the length dimension along glide direction of valve element 105 it is less
Formed, so in the centre position of the valve element 105 shown in Figure 12 (B), first port 102 is with second port 103 via bowl portion 106
Inside and become non-interconnected, but first port 102 and second port 103 are via the outside (inside of valve body) in bowl portion 106
And connect.Also, as shown in Figure 12 (C), in the process mobile from centre position to a side side (or the opposing party side) of valve element 105
Position, produces gap with the periphery of first port 102 (or second port 103) in protuberance 108 (or protuberance 109),
And the outside in bowl portion 106 is connected by the side's side edge (or the opposing party's side edge) via the gap and valve element 105 with inside,
So as to the inside as on high-tension side valve body is connected with the outflow port 101 as low-pressure side.
If high-pressure side is connected with low-pressure side as described above, and the flow of the cold-producing medium from high side to low side flowing
(middle flow) increases, then cannot the required pressure differential of acquisition model switching.Accordingly, it is considered to the edge for expanding valve element 105 is slided
The length dimension in direction, and in centre position, prolongation forms flange part until covering first port 102 and second port 103
Degree.If however, flange part as being formed, refrigerating mode and heating mode (first position of valve element 105 and
The second position) in, flange part is overlap with first port 102, second port 103, has the flowing of high-pressure side cold-producing medium because of flange part
And the problem so as to produce flow-reduction hindered.And, it is also considered that expand 103 phase of first port 102 and second port
For each distance for flowing out port 101, but cause the maximization of slidingtype switching valve 100, therefore do not recommend.
The content of the invention
It is an object of the present invention to provide middle flow when can reduce pattern switching and be readily available pattern switching institute
The pressure differential of needs and the slidingtype switching of refrigerating mode and the on high-tension side flow-reduction in heating mode can be suppressed
Valve and refrigerating circulation system.
The slidingtype switching valve of the present invention possesses the valve body of tubular, is sliding freely arranged on the inside of the valve body
Valve element and the multiple ports arranged in the way of in the side face opening of above-mentioned valve body, the feature of above-mentioned slidingtype switching valve
It is that above-mentioned multiple ports are made up of such as lower port：The inflow port for making fluid flow into the inside of above-mentioned valve body；Relative to
Outflow port of the inflow port located at the diametrically opposite side of above-mentioned valve body；Along the axial direction of above-mentioned valve body and above-mentioned outflow
The first port that one side side of port is disposed adjacently；And it is another with above-mentioned outflow port along the axial direction of above-mentioned valve body
The second port that square side is disposed adjacently, above-mentioned valve element be formed as with towards the concave bowl portion of above-mentioned outflow port openings,
And the flange part for extending from the opening edge in this bowl of portion outward, also, above-mentioned valve element be set to can by first position with
Slide to switch stream between the second position, wherein, above-mentioned first position is to make above-mentioned outflow port exist with above-mentioned first port
The position of the inside connection in above-mentioned bowl portion, said second position is to make above-mentioned outflow port with above-mentioned second port in above-mentioned bowl portion
Inside connection position, move or from above-mentioned second from above-mentioned first position to said second position in above-mentioned valve element
Put the switching midway of the stream to the movement of above-mentioned first position, above-mentioned valve element than above-mentioned first position and said second position it
Between centre position near said second position first through position and than above-mentioned centre position near above-mentioned first position
Second pass through through position, in a side side of the axial direction along above-mentioned valve body of above-mentioned flange part, be provided with to above-mentioned bowl portion
The first inside protrusions and first lateral protrusions prominent to the foreign side contrary with first inside protrusions that interior side projects, and
In the opposing party side of the axial direction along above-mentioned valve body of above-mentioned flange part, be provided with to the interior side in above-mentioned bowl portion it is prominent second on the inside of
Projection and second lateral protrusions prominent to the foreign side contrary with second inside protrusions, above-mentioned first through position, on
State the first inside protrusions and above-mentioned first lateral protrusions and close above-mentioned first port, or separate it is predetermined be located at gap it is upper
The inner side of the periphery of first port is stated, and above-mentioned second through position, on the outside of above-mentioned second inside protrusions and above-mentioned second
Projection closes above-mentioned second port, or the inner side for separating the predetermined periphery for being located at above-mentioned second port with gap.
According to such present invention, the first inside protrusions and the first lateral protrusions are provided with a side side of flange part, and
The second inside protrusions and the second lateral protrusions, first through position, pleurapophysis in first are provided with the opposing party side of flange part
Rise and the first lateral protrusions closing first port, or separate the inner side of the predetermined periphery for being located at first port with gap,
And second through position, the second inside protrusions and the second lateral protrusions close second port, or separate predetermined gap
Ground is located at the inner side of the periphery of second port.Herein, first through position, if the first inside protrusions and the first lateral protrusions
By close first port in the way of exist, then via the intermediate flow quantitative change of first port into zero, and if the first inside protrusions and
First lateral protrusions separate the inner side of the predetermined periphery for being located at first port with gap, then produce centre corresponding with the gap
Flow, it is less by gap is set as, middle flow can be suppressed.It is identical with this, second through position, if on the inside of second
Projection and the second lateral protrusions are present in the way of closing second port, then via the intermediate flow quantitative change of second port into zero,
And if the second inside protrusions and the second lateral protrusions separate the inner side of the predetermined periphery for being located at second port with gap, produce
Life middle flow corresponding with the gap, but it is less by gap is set as, middle flow can be suppressed.
Therefore, first when as pattern switching through position and second through position, can reduce high-pressure side with
The middle flow that low-pressure side is connected and produced via first port, second port, so as to be readily available required for pattern switching
Pressure differential.Also, in refrigerating mode and heating mode (valve element is in the situation of first position and the second position), even if
First inside protrusions, the first lateral protrusions, the second inside protrusions and the second lateral protrusions are covered each by flowing into port or first
The diminution of the flow path area of produced each port also can be suppressed to Min. by port, a part for second port, so as to
The flow-reduction of fluid can be suppressed.Especially, even if becoming the on high-tension side second position, the first lateral protrusions in first port
A part for first port is covered, and becomes on high-tension side first position in second port, the second lateral protrusions cover the second end
A part for mouth, it is also possible to suppress the flow path area of on high-tension side port to reduce caused flow-reduction.
Now, preferably, above-mentioned first inside protrusions and above-mentioned first lateral protrusions be with above-mentioned first port
The roughly the same external diameter of internal diameter arc-shaped projection, above-mentioned second inside protrusions and above-mentioned second lateral protrusions are that have
The projection of the arc-shaped of the external diameter roughly the same with the internal diameter of above-mentioned second port.
According to the structure, as the first inside protrusions and the first lateral protrusions are formed as with first port substantially with footpath
Arc-shaped, so with the slip of valve element, the first inside protrusions, the first lateral protrusions are closed in the position of the periphery along first port
First port is closed, so minimally can be set on the outside of the first inside protrusions and first closed required for first port
The area of projection.It is identical with this, as the second inside protrusions and the second lateral protrusions are formed as and the substantially same footpath of second port
Arc-shaped, so with the slip of valve element, the second inside protrusions, the second lateral protrusions are in the position of the periphery along second port
Second port is closed, so minimally can be set outside the second inside protrusions and second closed required for second port
The area of lateral process.
Also, it is preferably, at least one party in above-mentioned first lateral protrusions and above-mentioned second lateral protrusions is formed as tool
There is the outer surface portion of the convex for being carried out chamfering.
According to the structure, as the first lateral protrusions, the second lateral protrusions are formed as with the convex for being carried out chamfering
Outer surface portion, even if so the first lateral protrusions cover a part for first port in the second position, the second lateral protrusions exist
First position covers a part for second port, it is also possible to reduce produced by above-mentioned first lateral protrusions, the second lateral protrusions
Flow path resistance such that it is able to suppress the flow-reduction of high pressure side liquid.
Also, it is preferably, above-mentioned first through position, above-mentioned second lateral protrusions are positioned at the week than above-mentioned second port
Edge in the outer part, and above-mentioned second through position, above-mentioned first lateral protrusions positioned at the periphery than above-mentioned first port in the outer part.
According to the structure, due to first through position, the second lateral protrusions positioned at the periphery than second port in the outer part,
So via the intermediate flow quantitative change of second port into zero, even if so as to flow in the middle of producing in first port side, it is also possible to reduce
Its total amount.It is identical with this, due to second through position, the first lateral protrusions positioned at the periphery than first port in the outer part, institute
With via the intermediate flow quantitative change of first port into zero, even if so as to second port side produce in the middle of flow, it is also possible to reduce which
Total amount.
Also, it is more preferably, in above-mentioned centre position, above-mentioned first lateral protrusions are positioned at the week than above-mentioned first port
Edge in the outer part, and above-mentioned second lateral protrusions positioned at the periphery than above-mentioned second port in the outer part.
According to the structure, due in centre position, the first lateral protrusions positioned at the periphery than first port in the outer part, and
Second lateral protrusions positioned at the periphery than second port in the outer part, so first port and the intermediate flow at second port both sides
Quantitative change is into zero such that it is able to the total amount of flow in the middle of further reducing.
And, or, it is located in above-mentioned centre position, above-mentioned first inside protrusions and above-mentioned first lateral protrusions
Than above-mentioned first port periphery in the inner part, and above-mentioned second inside protrusions and above-mentioned second lateral protrusions are positioned at than above-mentioned
The periphery of second port is in the inner part.
According to the structure, in centre position, although the first inside protrusions and the first lateral protrusions separate and are located at gap
The inner side of the periphery of first port, and the second inside protrusions and the second lateral protrusions separate week with gap positioned at second port
The inner side of edge, but as the connection area that first port is connected with second port is reduced because of each projection, it is possible in reducing
Between flow.Also, when the position of valve element is first position or the second position, the area of the stream hindered by each projection becomes
It is few such that it is able to suppress the reduction of the flow of high-pressure side and low-pressure side.
The refrigerating circulation system of the present invention is characterised by possessing：The compression is compressed by cold-producing medium as fluid
Machine；First Heat Exchanger in refrigerating mode as condenser function；In refrigerating mode as vaporizer function
The second heat exchanger；The expansion for making cold-producing medium expand to be reduced pressure between above-mentioned First Heat Exchanger and above-mentioned second heat exchanger
Mechanism；And the slidingtype switching valve described in any of the above-described, above-mentioned slidingtype switching valve is configured to, is located in above-mentioned valve element
In the state of above-mentioned first position, the cold-producing medium after making from above-mentioned compressor to compress is from above-mentioned inflow port to above-mentioned valve body
It is internal to flow into, and cold-producing medium is flowed out to above-mentioned First Heat Exchanger via above-mentioned second port, so that changing from above-mentioned second
Hot device flows into the cold-producing medium after above-mentioned first port and states compressor circulation upwards from above-mentioned outflow port, or, in above-mentioned valve element
In the state of said second position, the cold-producing medium after making from above-mentioned compressor to compress is from above-mentioned inflow port to above-mentioned valve master
The inside of body flows into, and cold-producing medium is flowed out to above-mentioned second heat exchanger via above-mentioned first port, so that from above-mentioned the
Cold-producing medium after the above-mentioned second port of one heat exchanger inflow states compressor circulation upwards from above-mentioned outflow port.
It is according to the refrigerating circulation system of such present invention, identical with above-mentioned slidingtype switching valve, reduce pattern switching
When middle flow and be readily available the pressure differential required for pattern switching, and in refrigerating mode and heating mode, stream
Exit port or first port, the diminution of the flow path area of second port are suppressed to Min. such that it is able to suppress fluid
Flow-reduction.
The effect of invention is as follows.
Slidingtype switching valve of the invention and refrigerating circulation system, can reduce middle flow during pattern switching
And the pressure differential required for pattern switching is readily available, and the stream of refrigerating mode and the fluid in heating mode can be suppressed
Amount is reduced.
Description of the drawings
Fig. 1 is the brief configuration figure of the freeze cycle of an embodiment of the invention.
Fig. 2 is the sectional view of the slidingtype switching valve for representing that above-mentioned freeze cycle is used.
Fig. 3 is the sectional view and top view of the main portions of the above-mentioned slidingtype switching valve of enlarged representation.
Fig. 4 is the axonometric chart for the part for representing the valve element in above-mentioned slidingtype switching valve.
Fig. 5 is the sectional view of the effect for representing above-mentioned valve element.
The top view of action when Fig. 6 is the pattern switching of the valve element for representing embodiments of the invention.
Fig. 7 is the top view of action when representing the and then pattern switching of the above-mentioned valve element of Fig. 6.
The top view of action when Fig. 8 is the pattern switching of the valve element of the comparative example for representing the present invention.
Fig. 9 is the top view of action when representing the and then pattern switching of the above-mentioned valve element of Fig. 8.
Figure 10 is the chart of the middle rate of discharge for representing embodiment and comparative example.
Figure 11 is the sectional view of a part for the slidingtype switching valve of the past case for representing the present invention.
The top view of action when Figure 12 is the pattern switching of the valve element for representing above-mentioned past case.
In figure：
1-freeze cycle, 2-compressor, 3-outdoor heat exchanger (First Heat Exchanger), (second changes 4-indoor heat exchanger
Hot device), 5-expansion valve (expansion mechanism), 10-four-way switching valve (slidingtype switching valve), 11-valve body, 11A-inflow end
Mouthful, 11B-outflow port, 11C-first port, 11D-second port, 12-valve element, 25-bowl portion, 26-flange part,
27A-the first inside protrusions, 27B-the second inside protrusions, 28A-the first lateral protrusions, 28B-the second lateral protrusions, 28C-
Outer surface portion.
Specific embodiment
Hereinafter, referring to the drawings embodiments of the present invention are illustrated.As shown in figure 1, the freezing of present embodiment is followed
Ring 1 is utilized in the air conditioner such as air-conditioning indoors, possess the compressor 2 of compression refrigerant, in refrigerating mode with condenser
The outdoor heat exchanger 3 as First Heat Exchanger of function, in refrigerating mode using vaporizer function as second
The indoor heat exchanger 4 of heat exchanger, make the work that cold-producing medium between outdoor heat exchanger 3 and indoor heat exchanger 4 expands to be reduced pressure
For the expansion valve 5 of expansion mechanism, the four-way switching valve 10 as slidingtype switching valve, and the stream of four-way switching valve 10 entered
The pilot solenoid valve 6 of row switching control, they are linked by refrigerant piping.
Additionally, as expansion mechanism, being not limited to expansion valve 5, or capillary tube.
The freeze cycle 1 constitutes cold-producing medium successively to compressor 2, four in the heating mode (heating operation) shown in Fig. 1
What direction changeover valve 10, indoor heat exchanger 4, expansion valve 5, outdoor heat exchanger 3, four-way switching valve 10 and compressor 2 flowed heats
Circulation.On the other hand, in refrigerating mode (cooling operation), cold-producing medium is constituted successively to compressor 2, four-way switching valve 10, room
The kind of refrigeration cycle of external heat exchanger 3, expansion valve 5, indoor heat exchanger 4, four-way switching valve 10 and compressor 2 flowing.This heats and follows
The switching of ring and kind of refrigeration cycle is carried out by the switching action of the four-way switching valve 10 based on pilot solenoid valve 6.
As also shown in Figure 2, the four-way switching valve 10 of embodiments of the present invention is configured to possess：Cylindric valve body
11；The valve element 12 of the inside of the valve body 11 is arranged on sliding freely；The high-pressure side conduit connected with the outlet of compressor 2
(D joints) 13；The low-pressure side conduit (S joints) 14 connected with the suction inlet of compressor 2；The interior connected with indoor heat exchanger 4
Side conduit (E joints) 15；And the outside conduit (C joints) 16 connected with outdoor heat exchanger 3.
Cylindric valve body 11 have close its axial both ends key 17,18, and be fixed on valve body 11
Internal valve seat 19, is constituted as the overall cylinder barrel being closed.It is connected in key 17,18 and connects with pilot solenoid valve 6
Logical conduit 17A, 18A.Valve seat 19 be provided with for low-pressure side conduit 14, indoor conduit 15, and outside conduit 16 before
Insert and constitute outflow port 11B described later and first port 11C, the opening of second port 11D in end.The interior table of valve seat 19
Face 19A becomes the guide surface that sliding guidance is carried out to valve element 12.
In valve body 11, multiple port 11A, 11B, 11C, the 11D in its side face opening are formed with.That is, it is provided with connection high
Pressure side conduit 13 and make inside from cold-producing medium to valve body 11 flow into inflow port 11A, relative to flow into port 11A in valve master
The diametrically opposite side opening of body 11 is in the outflow port 11B of valve seat 19, first port 11C and second port 11D.Outflow end
, located at the approximately axially central authorities of valve body 11, first port 11C is along the axial direction of valve body 11 with outflow port 11B's for mouth 11B
One side side (left side of Fig. 2) is disposed adjacently, and second port 11D is located at along the axial direction of valve body 11 and flows out the another of port 11B
One side side (right side of Fig. 2).
By connecting low-pressure side conduit 14 flowing out port 11B, and in first port 11C junction chamber inner conduit 15, from
And first port 11C constitutes indoor side ports, and by second port 11D junction chamber outer conduit 16, so as to this
Two-port netwerk 11D constitutes outdoor side ports.Flow into port 11A with first port 11C mutually in valve body 11 radially to installing
Put, thus high-pressure side conduit 13 is connected in the way of being located substantially on straight line with indoor conduit 15.High-pressure side conduit 13
The valve body 11 for flowing into port 11A peripheries, low-pressure side conduit 14, indoor conduit 15 and outside are fixed on by solder brazing
Conduit 16 respectively by solder brazing be fixed on flow out port 11B, first port 11C, second port 11D periphery valve body 11 with
And valve seat 19.
Valve element 12 is configured to have：With the pair of right and left piston body 21,22 of the inner peripheral surface sliding contact of valve body 11；Link
A pair of pistons body 21,22 and the axially extending connecting member 23 along valve body 11；And it is supported in the valve portion of connecting member 23
Part 24.The inner space of valve body 11 is separated into：The altitude chamber R1 being formed between a pair of pistons body 21,22；It is formed at one
The first operating chamber R2 between piston body 21 and key 17；And second be formed between another piston body 22 and key 18
Operating chamber R3.
Connecting member 23 is made up of sheet metal, is formed with：Along the axially extending of valve body 11 and it is set to and valve seat 19
Inner surface 19A parallel link plate portion 23A；Consolidating for piston body 21 is fixed on in the side's side end bending for linking plate portion 23A
Stator portion 23B；And the stator portion 23C of piston body 22 is fixed on in the opposing party's side end bending for linking plate portion 23A.
Link plate portion 23A to be formed with retaining hole 23D that keeps valve member 24 and make passing through for two positions of cold-producing medium circulation
Through hole 23E.
Valve member 24 is plastic integral part, is formed as with the bowl being open towards valve seat 19 in concave shape
Portion 25, and the flange part 26 that extends outward of the opening edge from this bowl of portion 25.Bowl portion 25 is formed as having in the case of vertical view
The dome shape of oblong shape, is inserted into retaining hole 23D of connecting member 23.In the inside in bowl portion 25, being formed with makes outflow end
Mouth 11B is connected with first port 11C and is not made the connection of second port 11D or outflow port 11B is connected with second port 11D
Lead to and do not make connected space R4 as the connection of first port 11C.
Also as shown in Figure 3, Figure 4, the profile in the case of vertical view of flange part 26 is formed as rectangle, and with valve seat 19
The sliding face 26A of inner surface 19A sliding contacts and the opening connected with the inside in bowl portion 25 in the sliding face 26A openings
Portion 25A.The flange part 26 is configured between valve seat 19 and connecting member 23.And, sliding face 26A is utilized and is acted on valve member 24
High pressure and low pressure pressure differential and be in close contact with the inner surface 19A of valve seat 19, so as to the connected space R4 in bowl portion 25 is relative
Close in valve seat 19.
Also, in a side side (left side of Fig. 3) of the axial direction along valve body 11 of flange part 26, it is provided with into bowl portion 25
The first prominent inside protrusions 27A of side and first lateral protrusions prominent to the foreign side contrary with first inside protrusions 27A
28A.In addition, in the opposing party side (right side of Fig. 3) of the axial direction along valve body 11 of flange part 26, being provided with the interior side to bowl portion 25
The second prominent inside protrusions 27B and second lateral protrusions prominent to the foreign side contrary with second inside protrusions 27B
28B.Above-mentioned each projection 27A, 27B, the plan view shape of 28A, 28B be formed as with first port 11C, second port 11D
The arc-shaped of the roughly the same external diameter of internal diameter.Also, the first lateral protrusions 28A, the second lateral protrusions 28B are formed as with enforcement
Outer surface portion 28C of the dome shape of chamfering (convex).
More than four-way switching valve 10 in, if via pilot solenoid valve 6 and conduit 17A to the first operating chamber R2 import from
The high-pressure refrigerant that compressor 2 is ejected, then as shown in FIG. 1 to 3, piston body 21 is pressed and valve element 12 is to valve body 11
Axial the opposing party side (right side of Fig. 1～Fig. 3) is slided, and moves to the second position.If also, via pilot solenoid valve 6 and leading
Pipe 18A imports high-pressure refrigerant to the second operating chamber R3, then piston body 22 be pressed and valve element 12 to axially the one of valve body 11
Square side (left side of Fig. 1～Fig. 3) is slided, and moves to first position.
In valve element 12 in the state of the second position, as shown in Figure 2 and Figure 3, the bowl portion 25 of valve member 24 is connected using which
Space R4 makes outflow port 11B connect with second port 11D.Also, as the opposing party depends on positioned at than first port 11C in bowl portion 25
Side, so first port 11C is connected with port 11A is flowed into via the inside (altitude chamber R1) of valve body 11.That is, valve element 12
State in the second position become inflow port 11A connect with first port 11C, and outflow port 11B and second port 11D
The heating mode (heating operation) of connection.
In the heating mode, the high-pressure refrigerant H ejected from compressor 2 is via high-pressure side conduit 13 and flows into port
11A is imported to altitude chamber R1, and the high-pressure refrigerant H after the R1 of the altitude chamber is via first port 11C and indoor conduit
15 supply to indoor heat exchanger 4.Now, due to flow into port 11A with first port 11C being radially opposed in valve body 11
Arrange, it is possible to making point-blank to flow from the high-pressure refrigerant H flowed into inside port 11A inflow valve bodies 11 towards port 11C
It is dynamic, so as to realize the reduction of flow path resistance.Also, low pressure refrigerant L is from outdoor heat exchanger 3 via outside conduit 16 and
Two-port netwerk 11D is imported to the connected space R4 in bowl portion 25, and the low pressure refrigerant L after connected space R4 is via outflow port
11B and low-pressure side conduit 14 are to 2 circulation of compressor.
So in valve element 12 under the state (heating mode) of the second position, as shown in figure 3, in the first of valve member 24
Lateral process 27A, the second inside protrusions 27B respectively with a part of Chong Die, the valve member for flowing out port 11B and second port 11D
24 the first lateral protrusions 28A are configured to a part of Chong Die with first port 11C.So, the first lateral protrusions 28A and first
Port 11C a part overlap, but high-pressure refrigerant H as illustrated in fig. 5 along the first lateral protrusions 28A dome shape outer surface
Portion 28C is directed, and is successfully flowed towards first port 11C in the way of bypassing the first lateral protrusions 28A, so as to stream is hindered
The increase of power is suppressed to Min..
On the other hand, in valve element 12 in the state of first position, the bowl portion 25 of valve member 24 utilizes its connected space
R4 makes outflow port 11B connect with first port 11C.Also, as a side side, institute are leaned on positioned at than second port 11D by bowl portion 25
Connected with inflow port 11A via the inside (altitude chamber R1) of valve body 11 with second port 11D.That is, valve element 12 is in
The state of first position become inflow port 11A connect with second port 11D, and outflow port 11B connect with first port 11C
Refrigerating mode (cooling operation).In the refrigerating mode, the first inside protrusions 27A of valve member 24, the second inside protrusions 27B point
Not with first port 11C and flow out a part of Chong Die of port 11B, the second lateral protrusions 28B of valve member 24 be configured to
The part overlap of second port 11D.
Next, based on Fig. 6～Figure 10 to switch from pattern switching from heating mode to refrigerating mode when effect carry out
Explanation.Even if additionally, in the pattern switching switched from refrigerating mode to heating mode, being also to make with the following description identical
With.
Fig. 6, Fig. 7 are the valve member 24 of the embodiment for representing the four-way switching valve 10 for having used present embodiment and each port
The top view of the position relationship of 11B, 11C, 11D.Fig. 8, Fig. 9 are the valves of the comparative example of the slidingtype switching valve for being denoted as conventional
The top view of part 110 and the position relationship of each port 11B, 11C, 11D.Figure 10 is compared in embodiment and comparative example
With the movement of valve element and the flow of cold-producing medium that high-pressure refrigerant H is flowed out from high side to low side (below, is recited as centre
Flow) chart.Transverse axis in the chart is the amount of movement X of the valve element of embodiment and comparative example, and the longitudinal axis is by comparative example
In the maximum of middle flow be set to the middle rate of discharge of the embodiment in the case of 1 (100%) and comparative example.
Herein, the valve member 110 of comparative example is formed as with 24 shape of valve member and size being set as with embodiment
Roughly the same bowl portion 111 and flange part 112, are not forming the first inside protrusions 27A, the second inside protrusions 27B and
One lateral protrusions 28A, the aspect of the second lateral protrusions 28B are different from valve member 24.That is, the one of the flange part 112 of valve member 110
The ora terminalis 113,114 of square side and the opposing party side is formed as linear, the side side and the opposing party side at the inner side in bowl portion 111
Inner peripheral 115,116 be respectively formed as the arc-shaped protruded outward.
In Fig. 6 (A) and Fig. 8 (A), the valve element of expression embodiment and comparative example is in the state of the second position respectively
(heating mode).Under the state, port 11B is flowed out with second port 11D via in the bowl portion 25,111 of valve member 24,110
Portion and connect, flange part 26,112 is in close contact with valve seat 19 (with reference to Fig. 3 etc.) and closes bowl portion 25,111, so as to flow out port
11B and second port 11D (low-pressure side) become non-interconnected with first port 11C (high-pressure side).Therefore, in embodiment and ratio
Compared with example both in, as shown in Figure 10, valve element be in the second position, the centre when amount of movement of valve element is zero (shift position X0)
Flow is zero.
In the second position, in the valve member 24 of embodiment, the first inside protrusions 27A with flow out one of port 11B
Divide and overlap, the second inside protrusions 27B are a part of Chong Die with second port 11D.On the other hand, in the valve member 110 of comparative example
In, the inner peripheral in bowl portion 111 is not Chong Die with outflow port 11B and second port 11D, so as to the stream of each port 11B, 11D
Area will not reduce.But, as first inside protrusions 27A and the second inside protrusions 27B of embodiment respectively become circular arc
The projection of shape, so the diminution of the flow path area for flowing out port 11B and second port 11D is suppressed to into Min., so as to
The flow-reduction of low pressure refrigerant L can be suppressed.
If valve element is from the second position towards side's side shifting, in the valve member 24 of embodiment, such as shown in Fig. 6 (B), the
One inside protrusions 27A become the state (shift position X11) of the periphery overlap along first port 11C, and in the valve portion of comparative example
In part 110, such as shown in Fig. 8 (B), the front end of the inner peripheral 115 of a side side in bowl portion 111 becomes the periphery with first port 11C
The state (shift position X21) of contact.Until this state, in embodiment, comparative example, first port 11C not with bowl portion 25,
111 inside connection, i.e., middle flow is zero.As shown in Figure 10, such middle flow be zero state in embodiment from
Shift position X0 continues up to shift position X11, and continues until shift position X21 from shift position X0 in a comparative example.It is real
Apply in example, with the first inside protrusions 27A, correspondingly, the amount of movement to the X11 of shift position is than comparative example to movement
Amount of movement till the X21 of position is big, so as to the opportunity for producing middle flow postpones.
If valve element is further to side's side shifting, in the valve member 24 of embodiment, such as shown in Fig. 6 (C), become first
Inside protrusions 27A and the first lateral protrusions 28A separate the shape of the inner side of the predetermined periphery for being located at first port 11C with gap
State (first through position, shift position X12), and in the valve member 110 of comparative example, such as shown in Fig. 8 (C), become flange part
The inner peripheral 115 of the ora terminalis 113 of a 112 side side and a side side in bowl portion 111 is located at the inner side of the periphery of first port 11C
State (shift position X22).So, if in first port 11C, (connecting sky with low-pressure side in high-pressure side (altitude chamber R1 sides)
Between R4 sides) both sides form the gap that cannot be closed by valve member 24,110, then high-pressure side and low-pressure side via the gap of both sides with
And first port 11C inside and connect.Therefore, high-pressure refrigerant H is flowed out from high side to low side, so as to produce intermediate flow
Amount.
The opening surface produced by gap in embodiment, between the first inside protrusions 27A and the periphery of first port 11C
Product, and the gap between the first lateral protrusions 28A and the periphery of first port 11C produced by aperture area identical position
(shift position X12), intermediate flow amount become maximum.It is also identical in comparative example, ora terminalis 113 and first port 11C periphery it
Between aperture area and the aperture area identical position (shift position between inner peripheral 115 and the periphery of first port 11C
X22), intermediate flow amount becomes maximum.For the maximum of such middle flow, with the embodiment compared with comparative example substantially into
Mode for half (50%) sets the prominent size of the first inside protrusions 27A and the first lateral protrusions 28A.Additionally,
One through position, in embodiment, the second lateral protrusions 28B positioned at the periphery than second port 11D in the outer part, and will not be via
Second port 11D produces middle flow.
If valve element from first through position further towards side's side shifting, in the valve member 24 of embodiment, such as Fig. 7
(D), shown in, the first lateral protrusions 28A become the state (shift position X13) that the periphery along first port 11C is overlapped, and thus the
Single port 11C becomes non-interconnected with high-pressure side (altitude chamber R1).Also, as the second lateral protrusions 28B are positioned at than second port
The periphery of 11D in the outer part, so second port 11D and high-pressure side (altitude chamber R1) also become non-interconnected.Therefore, such as Figure 10 institutes
Show, after valve element is moved to shift position X13, intermediate flow quantitative change is into zero.
If valve element is further towards side's side shifting, shown in such as Fig. 7 (E), the center of the valve member 24 of embodiment with
The centre position (shift position Xm) for flowing out the center O overlaps of port 11B passes through, more than the centre position as shown in Fig. 7 (F)
Ground becomes state (shift position X14) of second lateral protrusions 28B along the periphery overlap of second port 11C.So in embodiment
Valve member 24 in, the first lateral protrusions 28A positioned at the periphery than first port 11C in the outer part, and the second lateral protrusions
28B positioned at the periphery than second port 11C in the outer part during, first port 11C, second port 11D with high-pressure side (high pressure
Room R1) become non-interconnected.Therefore, as shown in Figure 10, during valve element is moved up to shift position X14 from shift position X13,
In the middle of continuing, flow is zero state.
On the other hand, in the valve member 110 of comparative example, if the position (shift position X22) shown in valve element from Fig. 8 (C)
Further towards side's side shifting, then as shown in Fig. 9 (D), in ora terminalis 113 and first port 11C of a side side of flange part 112
Peripheral contact before, the ora terminalis 114 of the opposing party side becomes the state (shift position with the peripheral contact of second port 11D
X23).In shift position X23, high-pressure side (altitude chamber R1) is kept via first port with low-pressure side (connected space R4 sides)
11C and connect constant, so as to middle flow will not become zero.
Even if valve element is further towards side's side shifting, and the valve member 110 of comparative example is moved to as shown in Fig. 9 (E)
Center and the Chong Die centre positions (shift position Xm) of center O for flowing out port 11B, the ora terminalis of a side side of flange part 112
113 also will not be with the peripheral contact of first port 11C, and the ora terminalis 114 of the opposing party side becomes the periphery to second port 11D
The detached state in inner side.In addition, when being moved to such as the ora terminalis 113 of a side side shown in Fig. 9 (F) more than centre position and the
During position (the shift position X24) of the peripheral contact of Single port 11C, the ora terminalis 114 and the periphery of second port 11D of the opposing party side
Between gap enlargement.Therefore, in comparative example, in valve element from shift position X23 movements until during the X24 of shift position, protecting
Hold high-pressure side (altitude chamber R1) to connect via first port 11C and second port 11D with low-pressure side (connected space R4 sides)
State it is constant, so as to middle flow will not become zero.
Next, in embodiment, if the position (shift position X14) shown in valve element from Fig. 7 (F) is further towards a side side
It is mobile, then gap is formed between the second lateral protrusions 28B and the periphery of second port 11C, so as to produce middle flow.Valve element
Further move, become the state after the reversion of Fig. 6 (C) left and right, become the second inside protrusions 27B and the second lateral protrusions
28B separates that predetermined (second through position, shift position positioned at the state of inner side of periphery of second port 11D with gap
X15).In opening produced by second gap between position, the second inside protrusions 27B and the periphery of second port 11D
The aperture area produced by gap between open area and the second lateral protrusions 28B and the periphery of second port 11D is identical, from
And intermediate flow amount becomes maximum.Additionally, second through position, the first lateral protrusions 28A are positioned at the periphery than first port 11C
In the outer part, middle flow will not be produced via first port 11D.
If valve element from second through position further towards side's side shifting, in the valve member 24 of embodiment, become
By the state after the reversion of Fig. 6 (B) left and right, become the second inside protrusions 27B overlap along the periphery of second port 11C, and first
State (shift position X16) of lateral protrusions 28A positioned at the periphery than first port 11C in the outer part.Thus, first port 11C
And second port 11D becomes non-interconnected with high-pressure side (altitude chamber R1), as shown in Figure 10, is moved to shift position in valve element
After X16, intermediate flow quantitative change is into zero.Afterwards, it is further towards side's side shifting and mobile until will be Fig. 6 (A) left and right anti-in valve element
During first position (shift position X1) after turning, continue the state that middle flow is zero.
On the other hand, in comparative example, if the position (shift position X24) shown in valve element from Fig. 9 (F) is further towards a side
Side shifting, then between the ora terminalis 114 and the periphery of second port 11D of the opposing party side of the flange part 112 in valve member 110 between
Gap expands, middle flow increase.Valve element is further moved, and is become the state after the reversion of Fig. 8 (C) left and right, is become flange part
The inner peripheral 116 of the ora terminalis 114 of 112 the opposing party side and the opposing party side in bowl portion 111 is located at the periphery of second port 11D
Inner side, and each gap produced by aperture area identical state (shift position X25), in such a state, intermediate flow
Amount becomes maximum.
If valve element is further towards side's side shifting, in the valve member 110 of comparative example, becoming will be Fig. 8 (B) left and right anti-
State after turning, the inner peripheral 116 of the opposing party side and the state of the peripheral contact of second port 11C for becoming bowl portion 111 (are moved
Dynamic position X26).Thus, first port 11C and second port 11D become non-interconnected, such as Figure 10 with high-pressure side (altitude chamber R1)
Shown, after valve element is moved to shift position X26, intermediate flow quantitative change is into zero.Afterwards, valve element further towards side's side shifting,
And it is mobile until during by the first position (shift position X1) after the reversion of Fig. 8 (A) left and right, in the middle of continuation, flow is zero shape
State.For such comparative example, in embodiment, with the second inside protrusions 27B correspondingly, to the shifting of shift position X16
Momentum diminishes, so as to intermediate flow quantitative change shifted to an earlier date into zero opportunity.
As described above, in embodiment, as the maximum of middle flow is suppressed to half of comparative example or so, and
Middle flow be zero moving range it is larger, so understanding to suppress the total amount of middle flow.Herein, in the chart of Figure 10
In, due to the total amount of middle flow be by the integrated value of the cartographic represenation of area impaled between transverse axis, so in embodiment,
Understand that the total amount of middle flow can be suppressed to 1/10 or so compared with comparative example.
Present embodiment according to more than, as the middle flow produced in pattern switching can be reduced, so easily
Pressure differential required for acquisition model switching.Also, refrigerating mode and heating mode (valve element 12 be in first position and
The situation of the second position) in, even if the first inside protrusions 27A, the first lateral protrusions 28A, the second inside protrusions 27B and second
Lateral protrusions 28B are covered each by flowing into port 11B or first port 11C, a part for second port 11D, also can will be produced
The diminution of flow path area of each port 11B, 11C, 11D be suppressed to Min. such that it is able to suppress the flow of cold-producing medium to drop
It is low.
Also, due to being opposed to be provided with inflow port 11A with first port 11C, so in heating mode, height can be made
Compression refrigerant H point-blank flows from port 11A is flowed into towards first port 11C such that it is able to realize the reduction of flow path resistance, and
And the flow-reduction of cold-producing medium can be suppressed.Now, even at the second position valve member 24 the first lateral protrusions 28A with
A part for first port 11C is overlapped, and also outer surface portion 28C along the dome shape of the first lateral protrusions 28A guides high-pressure refrigeration
Agent H, high-pressure refrigerant H successfully can flow towards first port 11C, so as to the increase of flow path resistance is suppressed to irreducible minimum
Degree.Therefore, in heating mode, can strongly suppress the flow-reduction of fluid, and heat waste can be reduced, and then can suppress
The reduction of efficiency of power dissipation.
Further, since the first inside protrusions 27A, the second inside protrusions 27B and the first lateral protrusions 28A, on the outside of second
Projection 28B is formed as with first port 11C, second port 11D substantially with the arc-shaped in footpath, so with the slip of valve element 12,
Each projection 27A, 27B, 28A, 28B close each port 11C, 11D in the position of the periphery along each port 11C, 11D such that it is able to
Each projection 27A, 27B minimally required for setting closing each port 11C, 11D, the area of 28A, 28B.Therefore, will be each
The diminution of the flow path area of each port 11B, 11C, 11D in the case of projection 27A, 27B, 28A, 28B overlap is suppressed to minimum
Limit such that it is able to further suppress the flow-reduction of cold-producing medium.
Also, first through position, the second lateral protrusions 28B positioned at the periphery than second port 11D in the outer part, so as to
Via the intermediate flow quantitative change of second port 11D into zero, even if therefore first port 11C side produce in the middle of flow, it is also possible to subtract
Few its total amount.Identical with this, second through position, the first lateral protrusions 28A are outer positioned at the periphery than first port 11C
Side, so as to via the intermediate flow quantitative change of first port 11C into zero, even if therefore second port 11D side produce in the middle of flow,
Its total amount can be reduced.
Also, in centre position, the first lateral protrusions 28A positioned at the periphery than first port 11C in the outer part, and outside second
Lateral process 28B positioned at the periphery than second port 11D in the outer part, at first port 11C and second port 11D both sides
Intermediate flow quantitative change into zero, therefore, it is possible to further reduce the total amount of middle flow.
Also, in centre position, the first inside protrusions 27A and the first lateral protrusions 28A separate with gap positioned at first
The inner side of the periphery of port 11C, the second inside protrusions 27B and the second lateral protrusions 28B separate
The inner side of the periphery of 11D, as the connection area that first port 11C is connected with second port 11D is reduced because of each projection, so
The pressure differential being readily available required for pattern switching.Also, when the position of valve element is first position or the second position, by each
The area of the stream that projection hinders tails off such that it is able to suppress the reduction of the flow of high-pressure side and low-pressure side.
Additionally, the present invention is not limited to above-mentioned embodiment, including the other structures that can realize the purpose of the present invention
Deng of the invention also to include such deformation shown below etc..For example, in above-mentioned embodiment, citing illustrates air-conditioning indoors
Deng the freeze cycle 1 utilized in air conditioner, but the freeze cycle of the present invention is not limited to air conditioner, be switching plus
The equipment of heat pattern and refrigerating mode, can utilize in arbitrary equipment.Also, the slidingtype switching valve of the present invention is not
It is defined in the switching valve in freeze cycle and utilizes, the various with piping of the various fluid circulations such as gas, liquid can be made
Utilize in system.
Also, in above-mentioned embodiment, following structure is illustrated：In valve body 11, connect for high-pressure side conduit 13
First port 11C that the inflow port 11A for connecing is connected with for indoor conduit 15 in the radially opposite disposed of valve body 11,
In heating mode, point-blank flow towards first port 11C from the next high-pressure refrigerant H of port 11A inflows is flowed into, but do not limit
Due to this.I.e., or following structure：Port 11A is flowed into second port 11D being connected for outside conduit 16 in valve master
Body 11 it is radially opposite disposed, in refrigerating mode, flow into the high-pressure refrigerant H for coming towards the second end from port 11A is flowed into
Mouth 11D point-blank flows.And, or flow into port 11A with outflow port 11B in valve body 11 radially to installing
The structure put.
Also, in above-mentioned embodiment, the first inside protrusions 27A, the second inside protrusions 27B and the first lateral protrusions
28A, the second lateral protrusions 28B are the circular arcs with the external diameter roughly the same with the internal diameter of first port 11C, second port 11D
The projection of shape, but be not limited to this, the shape of each projection, is sized to arbitrarily setting.In addition, in above-mentioned embodiment, the
One inside protrusions 27A, the second inside protrusions 27B are formed as outer surface portion 28C with the dome shape for being carried out chamfering, but outward
Surface element can not also be carried out chamfering, even if dome shape is also not limited in the case where chamfering has been carried out, can adopt
Use arbitrary shape.
Also, in above-mentioned embodiment, first through position, the first inside protrusions 27A and the first lateral protrusions 28A
Separate the inner side of the predetermined periphery for being located at first port 11C with gap, and second through position, the second inside protrusions 27B
And second lateral protrusions 28B separate it is predetermined with gap positioned at second port 11D periphery inner side, but be not limited to this
The structure of sample.I.e., it is also possible to first through position, the first inside protrusions and the first lateral protrusions closing first port, and
Second through position, the second inside protrusions and the second lateral protrusions close second port.As such structure, Neng Gouju
Example is expressed as：Substantially the first inside protrusions and the first lateral protrusions are formed with the circumference in footpath along the internal diameter with first port, and
Substantially the second inside protrusions and the second lateral protrusions are formed with the circumference in footpath along the internal diameter with second port.According to such
Structure, then constitute first through position and the second intermediate flow quantitative change at the position into zero, do not produce middle flow
Slidingtype switching valve.
Also, in above-mentioned embodiment, in the centre position shown in Fig. 7 (E), the first lateral protrusions 28A are positioned at than first
The periphery of port 11C in the outer part, and the second lateral protrusions 28B positioned at the periphery than second port 11C in the outer part, but do not limit
Due to this, it is also possible in centre position, the first inside protrusions 27A and the first lateral protrusions 28A are positioned at than first port 11C's
In the inner part, and the second inside protrusions 27B and the second lateral protrusions 28B are inner positioned at the periphery than second port 11D for periphery
Side.
More than, referring to the drawings embodiments of the present invention are described in detail, but specific structure has been not limited to
These embodiments, the present invention are also included within design alteration in the range of the purport without departing from the present invention etc..
Claims (7)
1. a kind of slidingtype switching valve, it possess tubular valve body, be sliding freely arranged on the valve body inside valve
Core and the multiple ports arranged in the way of in the side face opening of above-mentioned valve body, the feature of above-mentioned slidingtype switching valve exist
In,
Above-mentioned multiple ports are made up of such as lower port：The inflow port for making fluid flow into the inside of above-mentioned valve body；Relative to
Outflow port of the inflow port located at the diametrically opposite side of above-mentioned valve body；Along the axial direction of above-mentioned valve body and above-mentioned outflow
The first port that one side side of port is disposed adjacently；And it is another with above-mentioned outflow port along the axial direction of above-mentioned valve body
The second port that square side is disposed adjacently,
Above-mentioned valve element be formed as with the concave bowl portion towards above-mentioned outflow port openings and the opening edge from this bowl of portion to
The flange part that foreign side extends, also,
Above-mentioned valve element is set to switch stream by sliding between the first location and the second location, wherein, above-mentioned first
Position is the position for making above-mentioned outflow port connect in the inside in above-mentioned bowl portion with above-mentioned first port, and said second position is to make
The position that above-mentioned outflow port is connected in the inside in above-mentioned bowl portion with above-mentioned second port,
Move from above-mentioned first position to said second position or from said second position to above-mentioned first in above-mentioned valve element
The switching midway of mobile stream is put, above-mentioned valve element is being leaned on than the centre position between above-mentioned first position and said second position
The first of nearly said second position is through position and than above-mentioned centre position near above-mentioned first position second through position
Pass through,
In a side side of the axial direction along above-mentioned valve body of above-mentioned flange part, be provided with to the interior side in above-mentioned bowl portion it is prominent first in
Lateral process and first lateral protrusions prominent to the foreign side contrary with first inside protrusions,
In the opposing party side of the axial direction along above-mentioned valve body of above-mentioned flange part, be provided with to the interior side in above-mentioned bowl portion it is prominent second
Inside protrusions and second lateral protrusions prominent to the foreign side contrary with second inside protrusions,
Above-mentioned first through position, above-mentioned first inside protrusions and above-mentioned first lateral protrusions close above-mentioned first port,
Or separate it is predetermined with gap positioned at above-mentioned first port periphery inner side,
Above-mentioned second through position, above-mentioned second inside protrusions and above-mentioned second lateral protrusions close above-mentioned second port,
Or separate the inner side of the predetermined periphery for being located at above-mentioned second port with gap.
2. slidingtype switching valve according to claim 1, it is characterised in that
Above-mentioned first inside protrusions and above-mentioned first lateral protrusions are with roughly the same with the internal diameter of above-mentioned first port
The projection of the arc-shaped of external diameter,
Above-mentioned second inside protrusions and above-mentioned second lateral protrusions are with roughly the same with the internal diameter of above-mentioned second port
The projection of the arc-shaped of external diameter.
3. slidingtype switching valve according to claim 1 and 2, it is characterised in that
At least one party in above-mentioned first lateral protrusions and above-mentioned second lateral protrusions is formed as with being carried out chamfering
The outer surface portion of convex.
4. according to the slidingtype switching valve described in any one of claims 1 to 3, it is characterised in that
Above-mentioned first through position, above-mentioned second lateral protrusions positioned at the periphery than above-mentioned second port in the outer part,
Above-mentioned second through position, above-mentioned first lateral protrusions positioned at the periphery than above-mentioned first port in the outer part.
5. according to the slidingtype switching valve described in any one of Claims 1 to 4, it is characterised in that
In above-mentioned centre position, above-mentioned first lateral protrusions positioned at the periphery than above-mentioned first port in the outer part, and above-mentioned
Two lateral protrusions positioned at the periphery than above-mentioned second port in the outer part.
6. according to the slidingtype switching valve described in any one of Claims 1 to 4, it is characterised in that
In above-mentioned centre position, above-mentioned first inside protrusions and above-mentioned first lateral protrusions are positioned at the week than above-mentioned first port
In the inner part, and above-mentioned second inside protrusions and above-mentioned second lateral protrusions are positioned at more inner than the periphery of above-mentioned second port for edge
Side.
7. a kind of refrigerating circulation system, it is characterised in that possess：
The compressor is compressed by cold-producing medium as fluid；Change as the first of condenser function in refrigerating mode
Hot device；The second heat exchanger in refrigerating mode as vaporizer function；Make cold-producing medium in above-mentioned First Heat Exchanger with
State the expansion mechanism for expanding to be reduced pressure between the second heat exchanger；And the slidingtype described in any one of claim 1～6
Switching valve,
Above-mentioned slidingtype switching valve is configured to,
In the state of above-mentioned valve element is located at above-mentioned first position, the cold-producing medium after making to be compressed by above-mentioned compressor is from above-mentioned inflow
Port is flowed into the inside of above-mentioned valve body, and cold-producing medium is flowed out to above-mentioned First Heat Exchanger via above-mentioned second port,
The cold-producing medium flowed into after above-mentioned first port is made from above-mentioned second heat exchanger to state compressor circulation upwards from above-mentioned outflow port, or
Person,
In the state of above-mentioned valve element is located at said second position, the cold-producing medium after making to be compressed by above-mentioned compressor is from above-mentioned inflow
Port is flowed into the inside of above-mentioned valve body, and cold-producing medium is flowed out to above-mentioned second heat exchanger via above-mentioned first port,
The cold-producing medium flowed into after above-mentioned second port is made from above-mentioned First Heat Exchanger to state compressor circulation upwards from above-mentioned outflow port.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2015204709A JP2017075675A (en) | 2015-10-16 | 2015-10-16 | Slide type selector valve and refrigeration cycle system |
| JP2015-204709 | 2015-10-16 |
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| CN106594320A true CN106594320A (en) | 2017-04-26 |
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| CN201610855547.9A Pending CN106594320A (en) | 2015-10-16 | 2016-09-27 | Slide type switch valve and refrigerating cycle system |
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| JP (1) | JP2017075675A (en) |
| CN (1) | CN106594320A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056675A (en) * | 2018-01-19 | 2019-07-26 | 株式会社鹭宫制作所 | Slidingtype switching valve and the refrigerating circulation system for having the slidingtype switching valve |
| CN110274052A (en) * | 2018-03-13 | 2019-09-24 | 杭州三花研究院有限公司 | Fluid switching device and heat management system |
| CN111911660A (en) * | 2019-05-07 | 2020-11-10 | 株式会社不二工机 | Flow path switching valve |
| CN113167396A (en) * | 2018-11-29 | 2021-07-23 | 株式会社不二工机 | Flow path switching valve |
| WO2024109738A1 (en) * | 2022-11-21 | 2024-05-30 | 浙江盾安人工环境股份有限公司 | Sliding block assembly, valve, and air conditioning system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105419B (en) * | 2017-12-12 | 2019-05-03 | 珠海格力电器股份有限公司 | Four-way valve, air conditioning unit and control method |
| JP7023525B2 (en) * | 2019-05-07 | 2022-02-22 | 株式会社不二工機 | Flow switching valve |
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| CN103851222A (en) * | 2012-11-30 | 2014-06-11 | 浙江三花制冷集团有限公司 | Direct-acting four-way reversing valve and manufacturing method thereof |
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| JPS59146661U (en) * | 1983-03-18 | 1984-10-01 | 日本ランコ株式会社 | switching valve |
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| JPS6249080A (en) * | 1985-08-28 | 1987-03-03 | Toshiba Corp | Four-way valve device |
| CN101769396A (en) * | 2010-02-05 | 2010-07-07 | 清华大学 | Five-way valve for switching of natural cooling, refrigeration and heating modes |
| CN103851222A (en) * | 2012-11-30 | 2014-06-11 | 浙江三花制冷集团有限公司 | Direct-acting four-way reversing valve and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056675A (en) * | 2018-01-19 | 2019-07-26 | 株式会社鹭宫制作所 | Slidingtype switching valve and the refrigerating circulation system for having the slidingtype switching valve |
| CN110056675B (en) * | 2018-01-19 | 2021-03-05 | 株式会社鹭宫制作所 | Sliding type switching valve and refrigeration cycle system provided with same |
| CN110274052A (en) * | 2018-03-13 | 2019-09-24 | 杭州三花研究院有限公司 | Fluid switching device and heat management system |
| CN110274052B (en) * | 2018-03-13 | 2021-10-22 | 浙江三花智能控制股份有限公司 | Fluid switching device and thermal management system |
| CN113167396A (en) * | 2018-11-29 | 2021-07-23 | 株式会社不二工机 | Flow path switching valve |
| CN111911660A (en) * | 2019-05-07 | 2020-11-10 | 株式会社不二工机 | Flow path switching valve |
| CN111911660B (en) * | 2019-05-07 | 2024-04-26 | 株式会社不二工机 | Flow path switching valve |
| WO2024109738A1 (en) * | 2022-11-21 | 2024-05-30 | 浙江盾安人工环境股份有限公司 | Sliding block assembly, valve, and air conditioning system |
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|---|---|
| JP2017075675A (en) | 2017-04-20 |
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Application publication date: 20170426 |