CN108692065A - Slidingtype switching valve and refrigerating circulation system - Google Patents
Slidingtype switching valve and refrigerating circulation system Download PDFInfo
- Publication number
- CN108692065A CN108692065A CN201810225211.3A CN201810225211A CN108692065A CN 108692065 A CN108692065 A CN 108692065A CN 201810225211 A CN201810225211 A CN 201810225211A CN 108692065 A CN108692065 A CN 108692065A
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- Prior art keywords
- mentioned
- valve
- recess portion
- valve seat
- wide cut
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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
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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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- 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 present invention provides the slidingtype switching valve and refrigerating circulation system that valve member can be made swimmingly to slide and can inhibit damage.Wide cut recess portion (271,273,281,283) is arranged throughout open area (A2) to closing region (A1), narrow recess portion (272,282), which is set to, closes region (A1), so as to obtain the oil in fluid (refrigerant), valve member (24) can be made swimmingly to slide.The beam portion (291,292) abutted with the upper surface (19A) of valve seat (19) continuously extends in X direction from the outer rim of valve opening portion (25A), to which the peripheral part of the wide cut recess portion (271,273,281,283) in sliding contact surface (26A) is difficult to enter in port (11C, 11D), and then the damage of valve member (24) can be inhibited.
Description
Technical field
The present invention relates to slidingtype switching valve and refrigerating circulation systems.
Background technology
Now, as the freeze cycle utilized in the air conditioners such as air-conditioning indoors, the circulation side for making refrigerant is utilized
To the cycle of reversion, so as to make when refrigerating mode (refrigeration) operates refrigerant via compressor, outdoor heat exchanger, expansion valve,
And indoor heat exchanger and to compressor circulation, and make refrigerant via compressor, interior when warm up mode (heating) operates
Heat exchanger, expansion valve and outdoor heat exchanger and to compressor circulation.As such ring for making the refrigerant in freeze cycle
The flow channel switching valve (so-called four-way switching valve) of flow path reversion, is sliding freely arranged in valve body extensively using having
The slidingtype switching valve of the valve member in portion.
In such slidingtype switching valve (such as four-way switching valve), since valve member is being pushed into the same of valve seat
When slide, so in order to realize smoothly sliding action, it is proposed that valve member sliding contact surface formed recess portion device (example
As referring to patent document 1,2).During four-way switching valve recorded in patent document 1 is used, in the sealing surface of spool (valve member)
(sliding contact surface) and position adjacent with being open in glide direction are formed with linear slot.Recorded in patent document 2
Four-way valve in, the sliding surface of sliding valve core be formed with surround opening cricoid strip slot.In these structures, by
The oil being formed in the recess portion acquisition fluid of sliding contact surface, to make valve member swimmingly slide.
Existing technical literature
Patent document 1:Japanese Unexamined Patent Publication 2013-227994 bulletins
Patent document 2:Japanese Unexamined Patent Publication 52-143050
However, linear slot recorded in patent document 1 is continuously until the ora terminalis of sealing surface, and opens wide and (do not formed
Enclosure space).Therefore, although being easy to obtain oil in slot, acquired oil easily flows out.Also, in sealing surface from
The orthogonal orthogonal direction of glide direction will opening be clipped between part do not form slot.The part sliding when not with valve seat side
Opening portion be overlapped and always with valve seat sliding contact, and along glide direction extend and contact area is larger, to the company of generation
The reason of repeating the movement (stick-slip, stick slip) slided and stopped continuously, and then easily becoming vibration, noise.
Since the cricoid strip slot recorded in patent document 2 is also formed in the always part with valve seat sliding contact,
So being difficult to cause above-mentioned unfavorable condition.Also, due to forming enclosure space between the strip slot and valve seat, so oil is difficult
With outflow.However, in the sliding of sliding valve core, the peripheral part of the opening of the part of strip slot in valve seat passes through, from
And the peripheral part of strip slot enters the opening of valve seat and the possibility that has sliding valve core to be scraped.
Therefore, for the damage of inhibit to rub caused unfavorable condition and valve member, consider only from orthogonal direction
The structure of recess portion is arranged in position between opening is clipped in.However, due to such recess portion not superposition of end gap with valve seat side, institute
To be difficult to obtain oil in the case of forming the shape of enclosure space between valve seat.On the other hand, in such as patent document 1
In the case of the recorded recess portion for being set as not formed enclosure space like that, acquired oil easily flows out.Therefore, in either case
Under, there is the possibility that valve member can not be slided swimmingly.
Invention content
The purpose of the present invention is to provide valve member can be made swimmingly to slide and the slidingtype of damage can be inhibited to cut
Change valve and refrigerating circulation system.
The slidingtype switching valve of the present invention is a kind of valve body having tubular, in a manner of linearly arranging in valve seat
It is formed with the valve seat of multiple valve seat opening portions and is incorporated in above-mentioned valve body and along the row of above-mentioned multiple valve seat opening portions
The slidingtype switching valve of the bowl-shape valve member of row setting direction sliding, which is characterized in that above-mentioned valve member has and above-mentioned valve
The sliding contact surface of seat surface sliding contact and the valve opening portion being open in a manner of making above-mentioned valve seat opening portion communicate with each other, on
State sliding contact surface have with it is above-mentioned be arranged be located on the orthogonal orthogonal direction in direction above-mentioned valve opening portion both sides and
Not with above-mentioned valve seat opening portion overlapping closing region and it is above-mentioned be arranged on direction it is adjacent with above-mentioned valve opening portion and
The open area Chong Die with above-mentioned valve seat opening portion is formed in above-mentioned closing region in above-mentioned sliding contact surface along above-mentioned row
Row setting direction extends and can be formed between above-mentioned valve seat the narrow recess portion of enclosure space, spreads above-mentioned open zone
Domain is arranged to above-mentioned closing region and can form wide cut recess portion, the Yi Ji of enclosure space between above-mentioned valve seat
By the above-mentioned wide cut recess portion of the both sides on above-mentioned orthogonal direction beam portion separated from one another in above-mentioned open area, above-mentioned beam portion from
The outer rim of above-mentioned valve opening portion continuously extends and is abutted with above-mentioned valve seat along the above-mentioned direction that is arranged.
According to such present invention, since wide cut recess portion is arranged throughout open area to closing region, so in valve portion
A part for wide cut recess portion is Chong Die with valve seat opening portion when the sliding of part, can obtain the oil in fluid.At this point, wide cut recess portion with
Narrow recess portion is discontinuous, even if in the case of always forming enclosure space between narrow recess portion and valve seat, it is above-mentioned
Recess portion track in the sliding of valve member is overlapped in closing region, to also be easy to supply wide cut recess portion to narrow recess portion
Oil.Therefore, it is possible to be formed in the narrow recess portion for closing region acquisition oil, so as to make valve member swimmingly slide.In addition,
Continuously extend since direction is arranged from the outer rim edge of valve opening portion in the beam portion abutted with valve seat, so in valve member
When sliding, the peripheral part of the wide cut recess portion in sliding contact surface is difficult to enter in valve seat opening portion, so as to inhibit valve member
Damage.
At this point, in the slidingtype switching valve of the present invention, preferably, in above-mentioned sliding contact surface, with by two above-mentioned width
There are one above-mentioned beam portions for central portion formation of the mode that width recess portion clips on above-mentioned orthogonal direction.According to this structure, by
It is equipped with beam portion in the central portion in orthogonal direction, so the peripheral part of the wide cut recess portion in sliding contact surface can be further suppressed
Into in valve seat opening portion.
Also, the present invention slidingtype switching valve in, preferably, along it is above-mentioned be arranged direction configuration by above-mentioned
The sets of recesses that narrow recess portion and above-mentioned wide cut recess portion are constituted, is equipped at least one cutting part abutted with above-mentioned valve seat, from
And the sets of recesses is arranged on direction discontinuously above-mentioned.According to this structure, due to being set relative to valve opening portion
Two wide cut recess portions that same sets of recesses is constituted in the both sides that direction is arranged are respectively in the sliding of valve member and mutual
When different valve seat opening portions is overlapped, sets of recesses is discontinuous, so valve seat opening portion is each other via sets of recesses without being connected to.By
This, can inhibit valve seat opening portion of the fluid from high-tension side valve seat opening portion to low-pressure side to flow into.
In addition, in the slidingtype switching valve of the present invention, preferably, in above-mentioned open area, and across above-mentioned wide cut
Recess portion and in the opposite side of above-mentioned valve opening portion, be formed with the end abutment region abutted with above-mentioned valve seat.According to such
Structure is opened due to being formed with end abutment region in open area so wide cut recess portion is not spread on direction is arranged
Put being integrally formed for region.Therefore, when the wide cut recess portion for the side being arranged in sliding on direction and valve seat opening portion weight
When folded, in the other side, end abutment region is easy Chong Die with other valve seat opening portions.That is, the side being arranged on direction with
And the wide cut recess portion of the other side be difficult to it is Chong Die with mutually different valve seat opening portion simultaneously, so as to inhibit fluid via arrangement
Valve seat opening portion of the wide cut recess portion of the both sides of setting direction from high-tension side valve seat opening portion to low-pressure side flows into.
The refrigerating circulation system of the present invention is characterized in that having:Compression to being compressed as the refrigerant of fluid
Machine;The First Heat Exchanger functioned as condenser in refrigerating mode;It is functioned as evaporator in refrigerating mode
The second heat exchanger;The expansion for being depressurized refrigerant expansion 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.According to such present invention, valve portion can be made as described above
Part swimmingly slides, so as to inhibit abnormal sound when the operating such as stick-slip, vibration.Further, it is possible to inhibit as described above
The damage of valve member so as to inhibit fluid to be leaked out from the part damaged, and then is capable of the fortune of the freezing-inhibiting circulatory system
The reduction of transfer efficient.
The effect of invention is as follows.
Slidingtype switching valve according to the present invention and refrigerating circulation system, are formed by the sliding contact surface in valve member
There are narrow recess portion, wide cut recess portion and beam portion, valve member can be made swimmingly to slide and can inhibit to damage.
Description of the drawings
Fig. 1 is provided with the brief configuration figure of the freeze cycle of the slidingtype switching valve of an embodiment of the invention.
Fig. 2 is the sectional view for showing above-mentioned slidingtype switching valve.
Fig. 3 is the sectional view for showing above-mentioned slidingtype switching valve.
Fig. 4 is the vertical view of the sliding contact surface for the valve member for showing above-mentioned slidingtype switching valve.
Fig. 5 is the vertical view for showing the above-mentioned sliding contact surface after making above-mentioned valve member slide.
Fig. 6 is the sectional view for the major part for showing the above-mentioned slidingtype switching valve after making above-mentioned valve member slide.
Fig. 7 is the vertical view of the sliding contact surface of the valve member for the slidingtype switching valve for showing first variation.
Fig. 8 is the vertical view of the sliding contact surface of the valve member for the slidingtype switching valve for showing the second variation.
In figure:
1-freeze cycle, 2-compressors, 3-outdoor heat exchangers (First Heat Exchanger), (second changes 4-indoor heat exchangers
Hot device), 5-expansion valves (expansion mechanism), 10-four-way switching valves (slidingtype switching valve), 11-valve bodies, 11A-inflow end
Mouth (opening portion), the ports 11B~11D-(valve seat opening portion), 13-high-pressure side conduits (joint component), 19A-upper surface (valve
Seat surface), 24-valve members, 25A-valve opening portion, 26A-sliding contact surface, 271,273,281,283-wide cut recess portions, 272,
282-narrow recess portions, 27,28-sets of recesses, 274,275-cutting parts, 291,292-beam portions, 293,294-end abutment areas
Domain, A1-closing region, A2-open area.
Specific implementation mode
Hereinafter, based on attached drawing, various embodiments of the present invention will be described.As shown in Figure 1, the four-way of present embodiment
Switching valve (slidingtype switching valve) 10 is for example set on freeze cycle 1.Freeze cycle 1 is for the air conditioners such as room conditioning, tool
It is standby:To the compressor 2 compressed as the refrigerant of fluid;The conduct functioned as condenser in refrigerating mode
The outdoor heat exchanger 3 of one heat exchanger;The interior as the second heat exchanger functioned as evaporator in refrigerating mode is changed
Hot device 4;Refrigerant expansion is set to be depressurized as the swollen of expansion mechanism between outdoor heat exchanger 3 and indoor heat exchanger 4
Swollen valve 5;Four-way switching valve 10;And the pilot solenoid valve 6 of the flow path of switching control four-way switching valve 10, they pass through refrigerant
It is piped and links.In addition, as expansion mechanism, it is not limited to expansion valve 5, can also be capillary.
Refrigerant is constituted in the freeze cycle 1 refrigerating mode shown in Fig. 1 (refrigeration operation) according to compressor 2, four-way
The sequential flowing of switching valve 10, outdoor heat exchanger 3, expansion valve 5, indoor heat exchanger 4, four-way switching valve 10 and compressor 2
Refrigeration cycle.On the other hand, refrigerant is constituted in warm up mode (heating operation) according to compressor 2, four-way switching valve 10, room
Interior heat exchanger 4, expansion valve 5, outdoor heat exchanger 3, four-way switching valve 10 and compressor 2 sequential flowing heating cycle.It should
Heating cycle and the switching of refrigeration cycle are carried out by four-way switching valve 10 based on the switching action of pilot solenoid valve 6.
Also as shown in Figure 2 and Figure 3, the four-way switching valve 10 of embodiments of the present invention is configured to the valve master for having cylindric
Body 11 is sliding freely arranged in the spool 12 of the inside of the valve body 11, the conduct connector being connected to the ejiction opening of compressor 2
The high-pressure side conduit (D connectors) 13 of component, the low-pressure side conduit (S connectors) 14 being connected to the suction inlet of compressor 2 are changed with interior
The indoor conduit (E connectors) 15 that hot device 4 is connected to and the outside conduit (C connectors) 16 being connected to outdoor heat exchanger 3.
Cylindric valve body 11 has the plug member 17,18 for blocking its axial both ends and is fixed on valve body 11
Internal valve seat 19, and it is configured to the cylinder barrel being integrally closed.It is connected separately in plug member 17,18 and is connected to pilot solenoid valve 6
Conduit 17A, 18A.It is equipped in valve seat 19 respective for low-pressure side conduit 14, indoor conduit 15 and outside conduit 16
It is inserted into and constitutes aftermentioned first port 11C, second port 11D and flow out the opening of port 11B in front end.Valve seat 19 it is upper
Surface 19A becomes the guide surface (valve seat) that sliding guidance is carried out to spool 12.
Multiple port 11A, 11B, 11C, the 11D being open in its side surface part 111 are formed in valve body 11.That is, equipped with making
For connect with high-pressure side conduit 13 opening portion for making refrigerant be flowed into the inside of valve body 11 inflow port 11A and
As relative to port 11A is flowed into the upper surface of valve seat 19 is formed in the diametrically opposite side of the side surface part of valve body 11 111
First port 11C, the second port 11D and outflow port 11B of the valve seat opening portion of 19A.It flows out port 11B and is set to valve body 11
It is approximately axially central, first port 11C along the axial direction of valve body 11 be adjacent to set on the side of outflow port 11B (Fig. 2's
Left side), second port 11D is adjacent to along the axial direction of valve body 11 set on the other side (right side of Fig. 2) of outflow port 11B.
That is, three port 11B~11D are set as linearly arranging.
By flowing out port 11B connection low-pressure sides conduit 14, and in first port 11C junction chambers inner conduit 15, come
So that first port 11C is constituted indoor side ports, and by second port 11D junction chambers outer conduit 16, come make this second
Port 11D constitutes outdoor side ports.Solder brazing is fixed respectively for low-pressure side conduit 14, indoor conduit 15 and outside conduit 16
In outflow port 11B, first port 11C, the valve body 11 on the peripheries second port 11D and valve seat 19.
Spool 12 is configured to have and the pair of right and left piston body 21 of the inner peripheral surface sliding contact of valve body 11,22, connection
A pair of pistons body 21,22 simultaneously along the axially extending connecting member 23 of valve body 11 and is supported in the bowl-shape of connecting member 23
Valve member 24.Hyperbaric chamber R1 that the inner space of valve body 11 is divided between being formed in a pair of pistons body 21,22, it is formed in
It the first operating room R2 between one piston body 21 and plug member 17 and is formed between another piston body 22 and plug member 18
Second operating room R3.
Connecting member 23 is made of sheet metal, and is formed to have:Along valve body 11 it is axially extending be arranged for
The connection plate portion 23A parallel with the upper surface 19A of valve seat 19;Piston is fixed in the side end bending for linking plate portion 23A
The fixinig plate portion 23B of body 21;And the end side bending for linking plate portion 23A is fixed on to the fixinig plate portion of piston body 22
23C.Connection plate portion 23A be formed with keep valve member 24 retaining hole 23D and make refrigerant circulate two at through hole 23E.
Valve member 24 is plastic integral part, and be formed to have towards valve seat 19 it is concave be open
Bowl portion 25 and the flange part 26 that extends outward from the opening edge in this bowl of portion 25.Bowl portion 25 is formed as having when looking down ellipse
Circular dome shape, and it is inserted into the retaining hole 23D of connecting member 23.Being formed in the inside in bowl portion 25 makes outflow port
11B is connected to first port 11C without being connected to second port 11D or outflow port 11B being made to be connected to second port 11D
Without being connected to such connected space R4 with first port 11C.
Have in the lower surface (face opposed with the upper surface 19A of valve seat 19) 260 of flange part 26 and is slided with upper surface 19A
The sliding contact surface 26A of the contact and valve opening portion 25A being connected to the inside in bowl portion 25.The flange part 26 is configured at valve seat 19
Between connecting member 23.Moreover, sliding contact surface 26A because act on valve member 24 high pressure and low pressure pressure difference due to and valve
The upper surface 19A of seat 19 is in close contact, and is closed relative to valve seat 19 to the connected space R4 in bowl portion 25.In addition, in port
Tapered portion, but aftermentioned port 11B~11D and valve opening portion 25A are formed with around 11B~11D and valve opening portion 25A
Size be (along the part that Z-direction extends) size not including tapered portion.
In above four-way switching valve 10, if being imported to the second operating room R3 via pilot solenoid valve 6 and conduit 18A
High-pressure refrigerant, then as shown in Figure 1 and Figure 2, piston body 22 be pressed and axial direction from spool 12 to valve body 11 (port 11B~
11D's is arranged direction) side (left side of Fig. 1, Fig. 2) sliding, to be moved to first position.If also, via elder generation
Conductive magnet valve 6 and conduit 17A import the high-pressure refrigerant sprayed from compressor 2 to the first operating room R2, then 21 quilt of piston body
Pressing and spool 12 to the axial other side (right side of Fig. 1, Fig. 2) of valve body 11 slide, to be moved to the second position.
In the state that spool 12 is located at the second position, the bowl portion 25 of valve member 24 makes outflow port 11B and second port
11D is connected to by connected space R4.Also, more lean on the other side than first port 11C since bowl portion 25 is located at, thus this
Single port 11C is connected to via the inside (hyperbaric chamber R1) of valve body 11 and with port 11A is flowed into.That is, spool 12 is located at second
The state set is to flow into port 11A the heating mould that port 11B is connected to second port 11D is connected to and flowed out with first port 11C
Formula (heating operation).
In the warm up mode, imported to hyperbaric chamber R1 from compressor 2 via high-pressure side conduit 13 and inflow port 11A
High-pressure refrigerant H after ejection, the high-pressure refrigerant H after the R1 of the hyperbaric chamber are led via first port 11C and indoor
Pipe 15 and to indoor heat exchanger 4 supply.Also, from outdoor heat exchanger 3 via outside conduit 16 and second port 11D to bowl
The connected space R4 in portion 25 imports low pressure refrigerant L, and the low pressure refrigerant L after connected space R4 is via outflow port
11B and low-pressure side conduit 14 and to 2 circulation of compressor.
On the other hand, in the state that spool 12 is located at first position, the bowl portion 25 of valve member 24 make outflow port 11B with
First port 11C is connected to by connected space R4.Also, side, institute are more leaned on than second port 11D since bowl portion 25 is located at
It is connected to via the inside (hyperbaric chamber R1) of valve body 11 with port 11A is flowed into second port 11D.That is, spool 12 is located at
The state of first position is to flow into port 11A to be connected to second port 11D and flow out port 11B and be connected to first port 11C
Refrigerating mode (refrigeration operation).
The valve member 24 of above four-way switching valve 10 is described in detail based on Fig. 3, Fig. 4.Herein, by port 11B
~11D's is arranged direction as X-direction, using the extending direction of conduit 13~16 as Z-direction, and will be with X-direction and Z
The orthogonal direction in direction (width direction of valve member 24) is used as Y-direction.
The sliding contact surface 26A of valve member 24 is formed as being rounded using Y-direction as length direction and corner substantially rectangular
Shape, valve opening portion 25A are formed as combining rectangle and semicircle and using X-direction as the oblong of length direction.Valve opening portion 25A
Y-direction size and the diameter of port 11B~11D it is roughly equal.Therefore, in sliding contact surface 26A relative to valve opening portion
25A and between port 11B~11D is clipped in by the part of Y-direction both sides, and in the sliding of valve member 24 not with end
Mouth 11B~11D overlappings.In this way, by the part relative to valve opening portion 25A and positioned at Y-direction both sides in sliding contact surface 26A
As closing region A1.Also, by the part except valve opening portion 25A and in addition to closing region A1 in sliding contact surface 26A
(part adjacent with valve opening portion 25 in the X direction and Chong Die with port 11C, 11D in sliding) is used as open area A2.
It is formed with the first wide cut recess portion 271, in the side (upside in Fig. 4) in the Y direction of sliding contact surface 26A
One narrow recess portion 272 and the second wide cut recess portion 273, and recess portion 271~273 is configured in X direction to constitute sets of recesses 27.
Recess portion 271~273, which has, not to be contacted with upper surface 19A and can store depth as oil mass appropriate.Also, recess portion 271
~273 are formed as close-shaped in a manner of surrounding predetermined region when looking down, and do not reach the end of sliding contact surface 26A
Edge.That is, being formed with enclosure space between recess portion 271~273 and upper surface 19A.In addition, in Fig. 3 only visible recess portion 271~
The first narrow recess portion 272 in 273.
First wide cut recess portion 271 and the second wide cut recess portion 273 are arranged throughout region A1 is closed to open area A2, shape
As with the generally trapezoidal of a pair of parallel side extended in X direction, and between valve opening portion 25A is clipped in by X-direction.
Edge 271A, 273A opposed with valve opening portion 25A in first wide cut recess portion 271 and the second wide cut recess portion 273 is opened along valve
Oral area 25A and be formed as arc-shaped.
Narrow recess portion 272 is formed as the rectangle extended in X direction, and by the first wide cut recess portion 271 and the second wide cut
Recess portion 273 is between narrow recess portion 272 is clipped in by X-direction.It is between the first wide cut recess portion 271 and narrow recess portion 272 and narrow
The cutting part 274,275 abutted with upper surface 19A is respectively equipped between width recess portion 272 and the second wide cut recess portion 273, to recess portion
271~273 independently of each other.That is, sets of recesses 27 is discontinuous in the X direction.In addition, width (the X-direction ruler of cutting part 274,275
It is very little) become and the wall of the Y-direction both sides of the first narrow recess portion 272 (closing the part abutted with upper surface 19A in the A1 of region)
The identical degree of thickness.
The other side (downside in Fig. 4) in the Y direction of sliding contact surface 26A be formed with third wide cut recess portion 281,
Second narrow recess portion 282 and the 4th wide cut recess portion 283, and recess portion 281~283 is configured in X direction to constitute sets of recesses
28.Recess portion 281~283 have respectively with 271~273 symmetrical shape of recess portion.
Being formed in the open area A2 of sliding contact surface 26A will be set on 271 He of the first wide cut recess portion of the both sides of Y-direction
Beam portion 291 that third wide cut recess portion 281 separates and the second wide cut recess portion 273 and the 4th set on the both sides of Y-direction is wide
The beam portion 292 that width recess portion 283 separates.That is, respectively in the X-direction both sides of valve opening portion 25A, to be clipped in by two wide cut recess portions
Between mode central portion in the Y direction form that there are one beam portions 291,292.
Beam portion 291,292 is formed as being continuously extended to sliding contact surface 26A from the outer rim of valve opening portion 25A in X direction
Ora terminalis and abutted with upper surface 19A.That is, not forming recess portion in beam portion 291,292.In addition, width (the side Y of beam portion 291,292
To size) preferably 1/3 or more of the diameter of port 11B~11D.If the width of beam portion 291,292 is narrow, in valve member 24
When sliding, the peripheral part of the wide cut recess portion 271,273,281,283 in sliding contact surface 26A is easily accessible in port 11C, 11D.
In the open area A2 of sliding contact surface 26A, across wide cut recess portion 271,281 in the opposite of valve opening portion 25A
Side is formed with end abutment region 293, and across wide cut recess portion 273,283 and the opposite side in valve opening portion 25A is formed with
End abutment region 294.End abutment region 293,294 is the region abutted with upper surface 19A.That is, wide cut recess portion 271,
273,281,283 being integrally formed for open area A2 is not spread in the X direction.Also, beam portion 291 and end abutment region 293
Continuously, beam portion 292 and end abutment region 294 are continuous.
Herein, each portion of sliding contact surface 26A and the relationship of port 11B~11D are illustrated.In addition, in Fig. 4, Fig. 5
Port 11B~11D is shown with double dot dash line, but is shown not including tapered portion and along the part that Z-direction extends.It is and above-mentioned in Fig. 4
First position correspond to, port 11B, 11C are impaled by valve opening portion 25A.At this point, wide cut recess portion 273,283 not with second port
11D is overlapped.If making valve member 24 slide in X direction in a manner of as the above-mentioned second position from such state, such as
Shown in Fig. 5, first port 11C is Chong Die with wide cut recess portion 271,281.At this point, second port 11D is supported with beam portion 292 and end
The overlapping of region 294 is connect, but not Chong Die with wide cut recess portion 273,283.
If continuing the sliding of valve member 24, first port 11C is Chong Die with wide cut recess portion 271,281, and second
Port 11D is Chong Die with wide cut recess portion 273,283.If further being slided, first port 11C become not with wide cut recess portion
271, after 281 overlappings, spool 12 is located in the second position.
When like this sliding valve member 24, the peripheral part of port 11C, 11D in the 19A of upper surface are in open area A2
Upper process.The situation that the peripheral part (corner) 190 of second port 11D is passed through on open area A2 is shown in Fig. 6.At this point, beam
Portion 292 continuously extends in X direction from the outer rim of valve opening portion 25A, to which peripheral part 190 is always connected to beam portion 292.Cause
This, in the state that valve member 24 is pushed into upper surface 19A, limitation valve member 24 is close with surface 19A further up
Mode deforms, to which the peripheral part of the wide cut recess portion 273,283 in sliding contact surface 26A (is extended in a manner of intersecting with X-direction
Edge, such as edge 273A, be opposed to along the edge 273B that Y-direction extends with edge 273A) be difficult into the 11D of port.
According to such present embodiment, there is effect below.That is, wide cut recess portion 271,273,281,283 is throughout opening
Region A2 is arranged to closing region A1, thus in the sliding of valve member 24, one of wide cut recess portion 271,273,281,283
It is point Chong Die with port 11C, 11D, the oil in fluid (refrigerant) can be obtained.At this point, wide cut recess portion 271,273 and narrow recess portion
272 in the sliding of valve member 24 track close region A1 in be overlapped, to be easy to narrow recess portion 272 supply wide cut recess portion
271,273 oil (also identical in recess portion 281~283).Therefore, it is possible to be formed in close region A1 narrow recess portion 272,
282 obtain oil, so as to make valve member 24 swimmingly slide.In addition, the beam portion 291 abutted with the upper surface 19A of valve seat 19,
292 continuously extend in X direction from the outer rim of valve opening portion 25A, in sliding contact surface 26A wide cut recess portion 271,273,
281,283 peripheral part is difficult to enter in port 11C, 11D, can inhibit the damage of valve member 24.
Also, since the central portion in the Y direction in sliding contact surface 26A is equipped with beam portion 291,292, so can be into
One step inhibits the peripheral part of the wide cut recess portion 271,273,281,283 in sliding contact surface 26A to enter in port 11C, 11D.
Also, since sets of recesses 27 becomes discontinuous because of cutting part 274,275, so wide cut recess portion 271,273 is distinguished
It is Chong Die with mutually different port 11C, 11D when valve member 24 is slided, at this point, port 11C, 11D are each other via sets of recesses 27
Without being connected to.Thereby, it is possible to inhibit port inflow of the refrigerant from high-tension side port to low-pressure side.
Also, due to being formed with end abutment region 293,294 in open area A2, and wide cut recess portion 271,273 is difficult
With Chong Die with mutually different port 11C, 11D simultaneously, so wide cut recess portion of the refrigerant via the both sides of X-direction can be inhibited
271,273 port from high-tension side port to low-pressure side flows into.
Also, since valve member 24 as described above is set to freeze cycle 1, so valve member 24 can be made swimmingly to slide
It is dynamic, so as to inhibit abnormal sound when the operating such as stick-slip, vibration.Further, it is possible to inhibit the damage of valve member 24, so as to
Enough refrigerant is inhibited to be leaked out from the part damaged, and then is capable of the reduction of the running efficiency of freezing-inhibiting cycle 1.
In addition, the present invention is not limited to the above embodiments, including the other structures that can be achieved the object of the present invention
Deng, and the present invention also includes deformation etc. as shown below.
For example, in the above-described embodiment, in the sets of recesses 27 for being formed in sliding contact surface 26A, the first wide cut recess portion
271, the first narrow recess portion 272 and the second wide cut recess portion 273 are set as separating because of cutting part 274,275 respectively, to phase
It is mutually separately formed, but narrow recess portion and wide cut recess portion is formed in sliding contact surface 26A, their relationship can also be
The relationship of following example.
In first variation shown in Fig. 7, both sides in sliding contact surface 26A and in the Y direction be formed with sets of recesses 30,
31.Sets of recesses 30 is made of two recess portions 301,302, and in X-direction due to being formed in cutting part 303 of X-direction central portion
It is upper discontinuous.Recess portion 301 is by making to be formed in the narrow recess portion 301A for closing region A1 and throughout open area A2 to closing
The recess portion that the wide cut recess portion 301B being arranged to region A1 is continuously formed.Recess portion 302 is also identical as recess portion 301, by narrow
Recess portion 302A and wide cut recess portion 302B are constituted.Sets of recesses 31 is made of two recess portions 311,312, and recess portion 311,312 is respectively provided with
With recess portion 301,302 identical shapes.Also, it is identical as the above embodiment, sliding contact surface 26A be formed with beam portion 291,
292 and end abutment region 293,294.
In the second variation shown in Fig. 8, both sides in sliding contact surface 26A and in the Y direction be formed with recess portion 32,
33.Recess portion 32 is by making throughout open area A2 to the wide cut recess portion 321 being arranged with closing region A1, being formed in and close region
What the narrow recess portion 322 of A1 and the wide cut recess portion 323 being arranged while region A1 is extremely closed throughout open area A2 were continuously formed
One recess portion.Recess portion 321~323 is arranged in order in the X direction.Recess portion 32 does not form cutting part, becomes continuous in the X direction
Shape.
In the second variation, it is formed with beam portion identical with the above embodiment 291,292 in sliding contact surface 26A,
But end abutment region is not formed.That is, wide cut recess portion 321,323 spreads the substantially whole landform of open area A2 in the X direction
At.In addition, recess portion 33 has shape identical with recess portion 32.
Also, in the above-described embodiment, be set as in sliding contact surface 26A, with by the wide cut recess portion 271 of Y-direction both sides,
281 modes being clipped in the middle central portion in the Y direction forms that there are one beam portions 291, but can also both sides in the Y direction wide cut it is recessed
More than two beam portions are formed between portion.That is, can also other recess portions be formed between the wide cut recess portion of both sides in the Y direction.
At this point, more than two beam portions can also be configured to deviate from the Y-direction central portion of sliding contact surface 26A.
In addition to this, best structure for carrying out the present invention, method etc., but this hair are disclosed in above record
It is bright that it's not limited to that.That is, the present invention especially illustrates and illustrates the embodiment mainly determined, but as long as not departing from this hair
The range of bright technological thought and purpose, embodiment for the above-described, those skilled in the art can be in shape, materials
Apply various modifications in matter, quantity, other detailed structures.Therefore, the record of shape, material etc. that defines disclosed above is
In order to make the understanding of the present invention become easy and example is recorded, and the non-limiting present invention, the present invention include by above-mentioned shape,
Part or all of restriction of the restrictions such as material remove after component title record.
Claims (5)
1. a kind of slidingtype switching valve, have the valve body of tubular, be formed in valve seat in a manner of linearly arranging it is multiple
The valve seat of valve seat opening portion and it is incorporated in above-mentioned valve body and direction is arranged along above-mentioned multiple valve seat opening portions
The bowl-shape valve member of sliding,
Above-mentioned slidingtype switching valve is characterized in that,
Above-mentioned valve member has and the sliding contact surface of above-mentioned valve seat sliding contact and so that above-mentioned valve seat opening portion connects each other
The valve opening portion that logical mode is open,
Above-mentioned sliding contact surface has is being located at above-mentioned valve opening portion with above-mentioned be arranged on the orthogonal orthogonal direction in direction
It both sides and closing region not Chong Die with above-mentioned valve seat opening portion and is arranged on direction and above-mentioned valve opening portion phase above-mentioned
The adjacent and open area Chong Die with above-mentioned valve seat opening portion,
Above-mentioned sliding contact surface be formed in above-mentioned closing region along it is above-mentioned be arranged direction extend and can with
Form the narrow recess portion of enclosure space between above-mentioned valve seat, be arranged to above-mentioned closing region throughout above-mentioned open area and
The wide cut recess portion of enclosure space can be formed between above-mentioned valve seat and in above-mentioned open area by above-mentioned orthogonal side
The above-mentioned wide cut recess portions of upward both sides beam portion separated from one another,
Above-mentioned beam portion continuously extends and is supported with above-mentioned valve seat along the above-mentioned direction that is arranged from the outer rim of above-mentioned valve opening portion
It connects.
2. slidingtype switching valve according to claim 1, which is characterized in that
In above-mentioned sliding contact surface, the central portion shape in a manner of being clipped by two above-mentioned wide cut recess portions on above-mentioned orthogonal direction
At there are one above-mentioned beam portions.
3. slidingtype switching valve according to claim 1 or 2, which is characterized in that
Along the above-mentioned sets of recesses being made of above-mentioned narrow recess portion and above-mentioned wide cut recess portion that direction configuration is arranged, it is equipped with
At least one cutting part abutted with above-mentioned valve seat, to which the sets of recesses is arranged on direction discontinuously above-mentioned.
4. slidingtype switching valve according to any one of claims 1 to 3, which is characterized in that
In above-mentioned open area, and across above-mentioned wide cut recess portion and in the opposite side of above-mentioned valve opening portion, be formed with it is above-mentioned
The end abutment region that valve seat abuts.
5. a kind of refrigerating circulation system, which is characterized in that have:
To the compressor compressed as the refrigerant of fluid;It first is changed as what condenser functioned in refrigerating mode
Hot device;The second heat exchanger functioned as evaporator in refrigerating mode;It is changed in above-mentioned First Heat Exchanger and above-mentioned second
The expansion mechanism for being depressurized refrigerant expansion between hot device;And the slidingtype described in any one of Claims 1 to 4
Switching valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-075878 | 2017-04-06 | ||
| JP2017075878A JP6687561B2 (en) | 2017-04-06 | 2017-04-06 | Slide type switching valve and refrigeration cycle system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108692065A true CN108692065A (en) | 2018-10-23 |
| CN108692065B CN108692065B (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810225211.3A Active CN108692065B (en) | 2017-04-06 | 2018-03-19 | Slidingtype switching valve and refrigerating circulation system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6687561B2 (en) |
| CN (1) | CN108692065B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6983410B2 (en) * | 2018-08-23 | 2021-12-17 | 株式会社不二工機 | Flow switching valve |
| EP4001716A4 (en) | 2019-07-16 | 2022-07-13 | Mitsubishi Electric Corporation | Refrigeration cycle device |
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| CN101205984A (en) * | 2006-12-19 | 2008-06-25 | 日立空调·家用电器株式会社 | Four-port conversion value and air conditioner using the same |
| CN101319726A (en) * | 2007-06-04 | 2008-12-10 | 浙江三花制冷集团有限公司 | Macrotype four-way reversing valve |
| JP2013227994A (en) * | 2012-04-24 | 2013-11-07 | Fuji Koki Corp | Four-way switching valve |
| CN104832677A (en) * | 2014-02-07 | 2015-08-12 | 大金工业株式会社 | Four-way switching valve |
| CN204705086U (en) * | 2014-06-16 | 2015-10-14 | 株式会社鹭宫制作所 | Spool, valve gear and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52143050U (en) * | 1976-04-26 | 1977-10-29 | ||
| JPS52152422U (en) * | 1976-05-17 | 1977-11-18 | ||
| JP4940853B2 (en) * | 2006-09-21 | 2012-05-30 | ダイキン工業株式会社 | Four-way switching valve for refrigerant |
| JP2008138995A (en) * | 2006-12-05 | 2008-06-19 | Hitachi Appliances Inc | Four-way selector valve and air-conditioner using the same |
-
2017
- 2017-04-06 JP JP2017075878A patent/JP6687561B2/en active Active
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2018
- 2018-03-19 CN CN201810225211.3A patent/CN108692065B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205984A (en) * | 2006-12-19 | 2008-06-25 | 日立空调·家用电器株式会社 | Four-port conversion value and air conditioner using the same |
| CN101319726A (en) * | 2007-06-04 | 2008-12-10 | 浙江三花制冷集团有限公司 | Macrotype four-way reversing valve |
| JP2013227994A (en) * | 2012-04-24 | 2013-11-07 | Fuji Koki Corp | Four-way switching valve |
| CN104832677A (en) * | 2014-02-07 | 2015-08-12 | 大金工业株式会社 | Four-way switching valve |
| CN204705086U (en) * | 2014-06-16 | 2015-10-14 | 株式会社鹭宫制作所 | Spool, valve gear and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6687561B2 (en) | 2020-04-22 |
| CN108692065B (en) | 2019-09-27 |
| JP2018179058A (en) | 2018-11-15 |
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