CN204705086U - Spool, valve gear and air conditioner - Google Patents
Spool, valve gear and air conditioner Download PDFInfo
- Publication number
- CN204705086U CN204705086U CN201520382288.3U CN201520382288U CN204705086U CN 204705086 U CN204705086 U CN 204705086U CN 201520382288 U CN201520382288 U CN 201520382288U CN 204705086 U CN204705086 U CN 204705086U
- Authority
- CN
- China
- Prior art keywords
- mentioned
- valve
- spool
- recess
- contact surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012530 fluid Substances 0.000 claims description 50
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 43
- 238000001816 cooling Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Multiple-Way Valves (AREA)
Abstract
The utility model provides a kind of spool, valve gear and air conditioner, and this spool is easily given sealing to sliding contact surface and can be maintained sealing.Be arranged side by side owing to being arranged in multiple recesses (632) on the sliding contact surface (631) of spool (63) gamut between the two ends of orthogonal direction, therefore, it is possible to be full of this enclosure space with a small amount of oil, easily sealing can be given to sliding contact surface (631).Further, because recess (632) forms enclosure space, therefore not easy oil leakage, easily maintains sealing.Further, even if the part in multiple recess (632) forms damage and is communicated with main valve chamber (S2) and causes easy leakage of oil, also can by being taken into the oil of other recesses (632) to maintain sealing.
Description
Technical field
The utility model relates to by the mobile spool relative to valve chamber opening and closing valve port that slides on valve seat, possesses the valve gear of this spool and possess the air conditioner of this valve gear.
Background technology
In the past, as the valve gear being located at air conditioner, disclose the cross valve (for example, referring to patent document 1 reference) being formed with recess on the sliding contact surface slidingly contacted with valve seat of spool.In the cross valve of the air conditioner described in patent document 1, be configured to, spool is contained in and is formed in the valve chamber of valve casing, and is being formed with movement of linearly sliding on the valve seat of multiple valve ports of valve chamber opening, thus can switch the flow direction of the fluid in air conditioner.In addition, as shown in Figure 10 (A), the recess 103 of the opening 102 that the sliding contact surface 101 slidingly contacted with valve seat of spool 100 is formed the connected space being communicated with two valve ports and the ring-type of surrounding opening 102.
In such spool 100, when valve seat slides, the oil contained by the fluid flowed in the flow path portion of air conditioner is taken into recess 103, by the gap between this oily blocking valve seat surface and sliding contact surface 101, thus realizes the raising of sealing.Further, the fluid of connected space inside spool 100 flowing low pressure, the fluid of effluent dynamic high-pressure outside, by forming recess 103, reducing the contact area that contacts with valve seat and improving surface pressing, improving sealing further.If the sealing of sliding contact surface improves, then fluid is inhibit to mix in the inner and outer of spool 100.
In addition, the spool (such as with reference to patent document 2) being formed with the groove portion extended in glide direction on sliding contact surface is also disclosed.In the spool 200 described in patent document 2, as shown in Figure 10 (B), on sliding contact surface 201, clipping the position of opening 202 from the both sides of glide direction, be formed with the recess 203 extended in glide direction.In such spool 200, recess 203 extends to the end of the glide direction of sliding contact surface 201, and the oil contained by fluid is easily taken into recess 203.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2008-138995 publication
Patent document 2: Japanese Unexamined Patent Publication 2013-227994 publication
Utility model content
But, in the spool 100 of patent document 1 as described above, in order to have the sealing function utilizing oil, therefore needing to be full of oil equably in recess 103 entirety, if be not taken into a large amount of oil, being then difficult to realize sealing.On the other hand, in the spool 200 of patent document 2, although be easily taken into oil to recess 203, easily leakage of oil, is difficult to maintain sealing.
In addition, in the spool 100 of patent document 1, in order to improve surface pressing to improve sealing, the area overlooking sliding contact surface 101 entirety of area (area of the hachure part namely, in Figure 10 (A)) ratio except opening 102 of recess 103 must be made large.But, if increase this to overlook area, then decline and easily leakage of oil in recess 103 surface tension, not easily maintain sealing, be difficult to take into account the imparting of sealing and maintain this both sides.
The purpose of this utility model is that providing a kind of easily gives sealing to sliding contact surface and can maintain the spool of sealing, valve gear and air conditioner.
Object is realized in order to solve above-mentioned problem, technical scheme described in scheme 1 is a kind of spool, it is contained in and is formed in the valve chamber of valve casing, and it is mobile by carrying out slip in the glide direction being formed with linearly shape on the valve seat of one or more valve ports of this valve chamber opening, come relative to above-mentioned this valve port of valve chamber opening and closing at least partially, above-mentioned spool has main part, the feature of above-mentioned spool is, on the sliding contact surface overlapping with above-mentioned valve seat in aforementioned body portion, be provided with the multiple recesses forming enclosure space between above-mentioned valve seat, be arranged side by side in the gamut of above-mentioned multiple recess at least between the two ends in the direction orthogonal with above-mentioned glide direction of above-mentioned sliding contact surface.
The spool of technical scheme described in scheme 2 according to scheme 1, above-mentioned valve seat is formed multiple above-mentioned valve port, aforementioned body portion is configured to close at least two above-mentioned valve ports relative to above-mentioned valve chamber simultaneously, and in the mode of this valve port that is interconnected, have towards the connected space of above-mentioned valve seat opening in above-mentioned sliding contact surface, above-mentioned multiple recess is to surround the opening mode configuration of above-mentioned connected space.
Technical scheme described in scheme 3 is a kind of spool, it is contained in and is formed in the valve chamber of valve casing, and by be formed on the valve seat of multiple valve ports of this valve chamber opening along by regulation axle centered by glide direction carry out slips rotation, come relative to above-mentioned this valve port of valve chamber opening and closing at least partially, above-mentioned spool has main part, the feature of above-mentioned spool is, on the sliding contact surface overlapping with above-mentioned valve seat in aforementioned body portion, be provided with the multiple recesses forming enclosure space between above-mentioned valve seat, aforementioned body portion is configured to close at least two above-mentioned valve ports relative to above-mentioned valve chamber simultaneously, and in the mode of this valve port that is interconnected, have towards the connected space of above-mentioned valve seat opening in above-mentioned sliding contact surface, above-mentioned multiple recess configures in the mode of the opening surrounding above-mentioned connected space.
Technical scheme described in scheme 4, according to the spool described in any one of scheme 1 ~ 3, is characterized in that, the orthogonal direction of the above-mentioned glide direction of locus configurations Cheng Yu time slip in the aforementioned body portion at least partially of above-mentioned multiple recess seamlessly arranges.
Technical scheme described in scheme 5 is a kind of valve gear, and it possesses: the valve casing forming valve chamber; There is the valve seat be formed towards the valve seat of one or more valve ports of this valve chamber opening; And be contained in above-mentioned valve chamber and carry out by the glide direction of edge regulation on above-mentioned valve seat the next spool relative to above-mentioned this valve port of valve chamber opening and closing that slides, the feature of above-mentioned valve gear is, above-mentioned spool is made up of the spool described in any one of technical scheme 1 ~ 4.
Technical scheme described in scheme 6 is a kind of air conditioner, and it possesses: the first flow path portion being connected with outdoor heat exchanger, expansion valve and indoor heat exchanger in turn; The second flow path portion be connected with compressor; And possess four valve ports being connected with the two ends of above-mentioned first flow path portion and above-mentioned second flow path portion respectively and switch the valve gear of the flow direction of the fluid in above-mentioned first flow path portion, the feature of above-mentioned air conditioner is, above-mentioned valve gear is made up of valve gear according to claim 5.
Technical scheme according to scheme 1, be arranged side by side owing to being arranged in the gamut of the multiple recesses on the sliding contact surface of main part between the two ends in the direction (orthogonal direction) orthogonal with glide direction of sliding contact surface, therefore compared with the structure extended on this orthogonal direction with a recess, the volume of the enclosure space that recess is formed diminishes, this enclosure space can be full of with a small amount of oil, easily can give sealing to sliding contact surface.In addition, even if at a part of recess underfill oil, also can by being filled with other recesses of oil to guarantee sealing.
Further, because recess forms smaller enclosure space, therefore not easy oil leakage, easily maintains sealing.Further, even if the part in multiple recess forms damage and is communicated with valve chamber and causes easy leakage of oil, also sealing can be maintained by other recesses.In addition, even if reduce the area beyond the recess in sliding contact surface, improve surface pressing and improve sealing, also can be suppressed the maximization of recess by the quantity increasing recess, the decline of the oil surface tension in recess can be suppressed and maintain sealing.
Technical scheme according to scheme 2, because multiple recess surrounds opening, therefore can improve sealing around opening, can fluid chemical field effectively in the fluid of check valve indoor and connected space.
Technical scheme according to scheme 3, owing to being provided with multiple recess at the sliding contact surface of main part, therefore, it is possible to easily give sealing to sliding contact surface and can maintain sealing.Further, because multiple recess surrounds opening, therefore sealing can be improved around opening.
Technical scheme according to scheme 4, due to the track when main part be configured in recess at least partially slides with the orthogonal direction of glide direction on seamlessly arrange, therefore seamlessly unction is coated with when sliding contact surface and valve seat slidingly contact at this interface, like this, even if fluid for along glide direction by be coated with oil region, also can block fluid by oil, thus sealing can be improved further.
Technical scheme according to scheme 5, has spool as described above by valve gear, thus easily gives sealing to sliding contact surface, and can maintain sealing.In addition, the fluid respectively by the space divided by spool can be suppressed to be mixed with each other.
Technical scheme according to scheme 6, has valve gear as described above by air conditioner, thus easily gives sealing to the sliding contact surface of spool, and can maintain sealing.In addition, the fluid respectively by the space divided by spool can be suppressed to be mixed with each other, suppress the decline of the running efficiency of air conditioner.
Accompanying drawing explanation
Fig. 1 is the structure chart of the air conditioner entirety representing embodiment of the present utility model.
Fig. 2 is the top view of the sliding contact surface of the spool representing the valve gear that the air conditioner being located at Fig. 1 uses.
Fig. 3 is the sectional view of the I-I line along Fig. 2.
Fig. 4 is the sectional view of the major part of Watch with magnifier diagram 3.
Fig. 5 is the top view of the major part of Watch with magnifier diagram 2.
Fig. 6 (A) ~ Fig. 6 (E) is the top view of the sliding contact surface of the spool representing variation.
Fig. 7 (A) ~ Fig. 7 (D) is the sectional view of the major part of the spool representing variation.
Fig. 8 (A), Fig. 8 (B) are the top views of the sliding contact surface of the spool represented in other variation.
Fig. 9 is the top view of the sliding contact surface of the spool represented in other variation.
Figure 10 (A), Figure 10 (B) are the top views of the sliding contact surface of the spool represented in the past.
In figure:
1-air conditioner, 2-outdoor heat exchanger, 3-expansion valve, 4-indoor heat exchanger, 5-compressor, 6-valve gear, 10-first flow path portion, the 20-the second flow path portion, 61-valve casing, 62-valve seat, 62A-E mouth (valve port), 62B-S mouth (valve port), 62C-C mouth (valve port), 63-spool, 621-valve seat, 631-sliding contact surface, 632-recess, 633-opening, S1-valve chamber, S5-connected space.
Detailed description of the invention
Below, based on accompanying drawing, embodiment of the present utility model is described.As shown in Figure 1, the air conditioner 1 of present embodiment possesses: the first flow path portion 10 being connected with outdoor heat exchanger 2, expansion valve 3 and indoor heat exchanger 4 in turn; Be connected with the second flow path portion 20 of compressor 5; The valve gear 6 be connected with first flow path portion 10 and the second flow path portion 20; And for the pilot valve 7 of selector valve device 6.Air conditioner 1 is formed with the mode heating running can switch cooling operation, carries out heat exchange and make indoor become nice and cool or warm by the fluids such as not shown cold-producing medium that flow in flow path portion 10,20 at indoor heat exchanger 4.
Outdoor heat exchanger 2 is configured to, and making the fluid of high temperature to outdoor heat radiation, temperature be declined, making the fluid of low temperature absorb heat and make temperature increase when heating running outdoor when cooling operation.
Expansion valve 3 is configured to, and makes the fluid adiabatic expansion passed through, and makes this fluid step-down.
Indoor heat exchanger 4 is configured to, and making the fluid of low temperature absorb heat indoor and make temperature increase, making the fluid of high temperature make to indoor radiating temperature decline when heating running when cooling operation.
First flow path portion 10 is configured to, the end of outdoor heat exchanger 2 side is connected with the C junction block 84 described later of valve gear 6, the end of indoor heat exchanger 4 side is connected with E junction block 82, and the flow direction of fluid becomes from C junction block 84 towards the direction of E junction block 82 when cooling operation, become direction from E junction block 82 towards C junction block 84 when heating running.
Compressor 5 is configured to, and is connected between the D junction block 81 described later of valve gear 6 and S junction block 83, compresses and become high pressure to the fluid passed through.The flow direction of the fluid in the second flow path portion 20 always becomes the direction from S junction block 83 towards D junction block 81.
Valve gear 6 is cross valves, possesses: the valve casing 61 forming valve chamber S1; There is the valve seat 62 of the valve seat 621 being formed with valve port 62A ~ 62C; Be contained in valve chamber S1 and by valve seat 621 linearly the glide direction (left and right directions in Fig. 1) of shape slide and relative to valve chamber S1, a part of valve port 62A ~ 62C carried out to the spool 63 of opening and closing; For making the pair of pistons portion 64,65 of spool 63 movement; D junction block 81; E junction block 82; S junction block 83; And C junction block 84.
Valve casing 61 is made up of the such as metal such as brass, stainless steel, has the cylindrical portion 611 of drum and two cap portions 612A, 612B of circular disk shape integratedly.Cap portion 612A, 612B are to block the mode of the end of cylindrical portion 611 respectively by the installation such as solder brazing, welding.In the position opposed with valve seat 62 of the central portion of cylindrical portion 611, be formed with the fluid provider 61A to the main valve chamber S2 opening described later in valve chamber S1.Conduit 613A, 613B of being connected with pilot valve 7 is connected at cap portion 612A, 612B.
Valve seat 62 is made up of the such as metal such as brass, stainless steel, configures in main valve chamber S2 opposedly with fluid provider 61A, is fixed on cylindrical portion 611 by solder brazing, welding etc.Valve seat 621 is arranged opposedly with fluid provider 61A, and E mouth 62A, S mouth 62B be formed successively left side from Fig. 1 as valve port and C mouth 62C.For circular when each mouth 62A ~ 62C is formed as overlooking, and be of similar shape respectively.In addition, the surface smoothing ground of valve seat 621 is formed, and easily slides to make spool 63.In addition, due to valve seat 621 surface smoothing formed, therefore not easy damaged spool 63.
Spool 63 is made up of the such as synthetic resin such as PA (polyamide), PPS (polyphenylene sulfide) resin, and, as shown in Figure 2,3, there is the main part 630 being formed as roughly semiellipsoid shape, be formed with the sliding contact surface 631 overlapping with valve seat 621 at the lower surface of main part 630.The connected space S5 of two be communicated with in valve port 62A ~ 62C is formed in the inner side of main part 630.
Be formed at sliding contact surface 631 and form multiple recesses 632 of enclosure space and the opening 633 of connected space S5 between valve seat 621.As described later, the fluid of high pressure is by main valve chamber S2, and the fluid of low pressure is by connected space S5, therefore because the sliding contact surface 631 of pressure differential main part 630 is pressed against valve seat 621.
Pair of pistons portion 64,65 is such as main is that material is formed with fluororesin such as PTFE (polytetrafluoroethylene (PTFE)), and interconnected by connecting member 66.In addition, pair of pistons portion 64,65 is upper arranged opposite at the left and right directions (glide direction) of Fig. 1, and can the mode of movement in the direction in which arrange.Valve chamber S1 is divided into pair of pistons portion 64,65 main valve chamber S2 each other by being configured in valve casing 61 and being formed at and secondary valve chamber S3, S4 between cap portion 612A, 612B by pair of pistons portion 64,65.
D junction block 81, E junction block 82, S junction block 83 and C junction block 84 are the pipe arrangements such as the copper that flows in inner side of fluid.D junction block 81 is installed on fluid provider 61A in the mode be communicated with main valve chamber S2.E junction block 82, S junction block 83 and C junction block 84 in the mode be communicated with E mouth 62A, S mouth 62B and C mouth 62C respectively, a respective through cylindrical portion 611 in end and installing.
Then, about actuating mechanism, valve gear 6 is described.At this, as described later, pilot valve 7 is configured to, and the S junction block 83 that the D junction block 81 flowed with the fluid for high pressure and the fluid for low pressure flow is connected, by being energized to coil, thus can the connection of change over adapter pipe 81,83 and conduit 613A, 613B.Such as, when the action of left side (during cooling operation), stop the energising of the coil to pilot valve 7, connect the conduit 613B on D junction block 81 and right side, and connect the conduit 613A in S junction block 83 and left side when making spool 63 in Fig. 1.Thus, the secondary valve chamber S3 that the secondary valve chamber S4 on right side compares left side becomes high pressure, and pair of pistons 64,65 moves to the left, and is accompanied by this, and spool 63 also moves to the left.Now, E mouth 62A is communicated with S mouth 62B by connected space S5 by spool 63, and C mouth 62C is exposed relative to main valve chamber S2.Namely, spool 63 closes E mouth 62A and S mouth 62B relative to main valve chamber S2, unlimited C mouth 62C.
In addition, when make spool 63 to the right action (when heating running), by the coil electricity to pilot valve 7, connect the conduit 613A in D junction block 81 and left side and be connected the conduit 613B on S junction block 83 and right side, thus the secondary valve chamber S4 that the secondary valve chamber S3 in left side compares right side becomes high pressure, pair of pistons 64,65 and spool 63 move to the right.Now, C mouth 62C is communicated with S mouth 62B by connected space S5 by spool 63, and E mouth 62A is exposed relative to main valve chamber S2.Namely, spool 63 closes C mouth 62C and S mouth 62B relative to main valve chamber S2, unlimited E mouth 62A.In addition, pilot valve 7 also can be when cooling operation to coil electricity, heat running time stop to the energising of coil structure.
Then, with reference to Fig. 2 ~ 5 to being described in detail of multiple recesses 632 being formed at sliding contact surface 631.Multiple recess 632 is formed at whole sliding contact surface 631 in the mode of surrounding opening 633.Each recess 632 is formed as being round shape when overlooking, and diameter is formed as such as about 0.5mm ~ 2mm.In addition, recess 632 may not be round shape, when being formed as other shapes, is set as that area when overlooking is recess 632 same degree with above-mentioned round shape.In addition, in the area of sliding contact surface 631 entirety, such as, form recess 632 with about 10% ~ 40%, compared with the structure not forming recess, higher relative to the surface pressing of valve seat 621.In addition, the section of recess 632 is formed as semiellipse shape, and the degree of depth is formed as such as about 0.3mm ~ 2mm.In addition, recess 632 also can be formed by arranging pin at metal pattern when carrying out injection moulding to main part 630, also can make its melting by the pin cutting or push high temperature afterwards in the shaping of main part 630 and be formed.
At sliding contact surface 631, be arranged side by side multiple recess 632 in the gamut between the two ends in the direction (orthogonal direction) orthogonal with glide direction shown in Fig. 2, formed multiple row along this orthogonal direction.In addition, also some gaps can be formed between the recess 632 of end being formed at orthogonal direction and the end of sliding contact surface 631.Multiple recesses 632 like this arrange (namely, being configured in glide direction adjacent with recess 632 gap each other of other row) in modes mutually different from the recess 632 of adjacent row in each row, when observing from glide direction, in the gamut at the two ends of orthogonal direction, be seamlessly configured with recess 632.Namely that, be configured to multiple recess 632, that main part 630 slides when moving in glide direction track (illustrating with double dot dash line in Figure 5) at adjacent row each other, overlap in that orthogonal direction, this track gapless in that orthogonal direction.
Below, the action of air conditioner 1 is described.As mentioned above, E mouth 62A is communicated with S mouth 62B by connected space S5 when cooling operation by air conditioner 1.The fluid of the high pressure after being compressed by compressor 5 flows into main valve chamber S2 by the second flow path portion 20 and D junction block 81 from fluid provider 61A, by flowing out, towards C junction block 84 and first flow path portion 10 from C mouth 62C in main valve chamber S2.Further, when this fluid is by first flow path portion 10, dispel the heat at outdoor heat exchanger 2, and by expansion valve 3 step-down, indoor are cooled off and temperature rising at indoor heat exchanger 4.Flow into connected space S5 by E junction block 82 from E mouth 62A by the fluid of the low pressure in first flow path portion 10, flow out from S mouth 62B and towards S junction block 83 and the second flow path portion 20, again arrive compressor 5 and repeat above-mentioned circulation.
In addition, as mentioned above, air conditioner 1 is communicated with C mouth 62C and S mouth 62B when heating running by connected space S5.The fluid of the high pressure after being compressed by compressor 5 flows into main valve chamber S2 by the second flow path portion 20 and D junction block 81 from fluid provider 61A, by flowing out, towards E junction block 82 and first flow path portion 10 from E mouth 62A in main valve chamber S2.Further, when this fluid is by first flow path portion 10, is warmed in indoor and temperature decline at indoor heat exchanger 4, by expansion valve 3 step-down, absorb heat at outdoor heat exchanger 2.Flow into connected space S5 by C junction block 84 from C mouth 62C by the low-pressure fluid in first flow path portion 10, flow out from S mouth 62B and towards S junction block 83 and the second flow path portion 20, again arrive compressor 5 and repeat above-mentioned circulation.
As mentioned above, by the oil containing lubrication in the fluid in each portion of air conditioner 1, the recess 632 being formed at the sliding contact surface 631 of spool 63 carries out being taken into this oil when sliding mobile at main part 630.Such as, oil is attached to valve seat 621, and sliding contact surface 631 and this valve seat 621 slidingly contact, thus oil is taken into recess 632.Now, by recess 632, there is size as described above, thus oil is full of recess 632 is integrally taken into.
According to such present embodiment, there is following effect.Namely, due to be arranged at sliding contact surface 631 the gamut of multiple recesses 632 between the two ends of orthogonal direction in be arranged side by side, therefore compared with the structure extended in that orthogonal direction with a recess, the volume of the enclosure space that recess 632 is formed diminishes, this enclosure space can be full of with a small amount of oil, easily can give sealing to sliding contact surface 631.In addition, even if at a part of recess 632 underfill oil, also can by being filled with other recesses 632 of oil to guarantee sealing.
Further, because recess 632 forms smaller enclosure space, therefore not easy oil leakage, easily maintains sealing.Further, even if the part in multiple recess 632 is formed with damage and is communicated with main valve chamber S2 and becomes easy leakage of oil, also sealing can be maintained by the oil being taken into other recesses 632.In addition, even if improve sliding contact surface 631 as mentioned above relative to the surface pressing of valve seat 621, also can suppress the maximization of the face inside dimension of recess 632, the decline of the oil surface tension of recess 632 can be suppressed and maintain sealing.In addition, even if be mixed into solid-state impurity in a fluid, near recess 632, when sliding contact surface 631 and valve seat 621 have clamped this impurity, also can maintain sealing by other recesses 632.
Further, because multiple recess 632 surrounds opening 633, therefore, it is possible to around opening 633 raising sealing, effectively can suppress the fluid in main valve chamber S2 and the fluid chemical field in connected space S5.
And, the track be configured to when main part 630 slides due to multiple recess 632 seamlessly arranges in that orthogonal direction, therefore seamlessly unction is coated with when sliding contact surface 631 slidingly contacts with valve seat 621 at this interface, like this, even if fluid for along glide direction by be coated with oil region, also can block fluid by oil, sealing can be improved further.
As mentioned above, improve the sealing of sliding contact surface 631 and valve seat 621, and maintain sealing, and suppress the mixing of the fluid in main valve chamber S2 and the fluid in connected space S5, therefore, it is possible to suppress the decline of the running efficiency of air conditioner 1.
In addition, recess 632 is formed at resinous main part 630 and the valve seat 621 of metal valve seat 62 is formed smoothly, therefore with form the structure of recess at valve seat 62 compared with, do not need cutting metal parts, easily can form recess, and sliding contact surface 631 can be suppressed to be damaged by valve seat 621.
In addition, the utility model is not limited to above-mentioned embodiment, and comprise other structures etc. that can realize the purpose of this utility model, distortion shown below etc. are also contained in the utility model.
Such as, in the above-described embodiment, the recess 632 overlooked in round shape that diameter is about 0.5mm ~ 2mm is formed at sliding contact surface 631, but the shape of recess and size, overlook area to set arbitrarily, such as both can as shown in Fig. 6 (A), form the recess 632B that diameter is larger, also can as shown in Fig. 6 (B), form the recess 632C overlooked in round shape that diameter is mutually different, also can as shown in Fig. 6 (C), form the recess 632D overlooking the shape that assumes diamond in shape, also can as shown in Fig. 6 (D), form the recess 632E overlooked in generally elliptical shape of long axis orthogonal direction, also can as shown in Fig. 6 (E), form the recess 632F overlooked in generally elliptical shape of long axis glide direction.If as Fig. 6 (C), recess 632D is formed as diamond shaped, then when the metal pattern for carrying out injection moulding to main part 630 arranges the projection forming recess 632D, can by easily forming projection with linearity cutting metal mould.
In addition, the section shape of recess is not limited to the shape shown in above-mentioned embodiment, having suitable shape, such as, can, as shown in Fig. 7 (A), be both the rectangular-shaped recess 632G that bight is formed as arc-shaped, also can as shown in Fig. 7 (B), being rectangular-shaped recess 632H, can, as shown in Fig. 7 (C), be also trapezoidal recess 632I, also can, as shown in Fig. 7 (D), be the recess 632J of triangle.
In addition, in the above-described embodiment, spool 63 is the spools in the enterprising line slip movement of the glide direction of linearity, but spool also can be the spool rotated in the enterprising line slip of the glide direction centered by the axle of regulation, also can as shown in Fig. 8 A and Fig. 8 B, the main part 670 being configured to spool 67 carries out slip and rotates centered by axle O.In such spool 67, be formed with opening 673 and multiple recess 672 at sliding contact surface 671, recess 672 is arranged in the mode of the opening 673 surrounding connected space S5.Further, multiple recess 672 as shown in amplifying in Fig. 8 (B), be configured to main part 670 slides in glide direction rotation time track (illustrating with double dot dash line) overlap in that orthogonal direction, this track gapless in that orthogonal direction.According to this structure, even slide the spool 67 rotated, also can improve sealing substantially in the same manner with above-mentioned embodiment and maintain sealing.
In addition, in above-mentioned embodiment, track when main part 630 in multiple recess 632 slides mobile in glide direction overlaps in that orthogonal direction between adjacent row each other (, two arrange), as long as but with this track in that orthogonal direction gapless mode configure recess, then can play the effect identical with above-mentioned embodiment.Such as, also can be following configuration, namely, when being formed with gap in that orthogonal direction when making the track of two row recesses overlap, the track arranging above recess by making another overlaps and eliminates this gap; Can be following configuration, namely, recess do not form row but arbitrary disposition, and eliminates the gap of orthogonal direction by making their track at least partially overlap yet.
In addition, if the recess of orthogonal direction gap is each other formed very little, then the track of recess also can leave gap in that orthogonal direction, such as, also can be as shown in Figure 9, multiple recess 632K is arranged side by side in that orthogonal direction and forms multiple row, and is the structure that the recess 632K of each row is mutually adjacent in glide direction.
In addition, in the above-described embodiment, multiple recess 632 is arranged in the mode of surrounding opening 633, but multiple recess also can not surround opening, such as, as shown in Figure 9, both can be the structure that recess 632K is arranged on the both sides of the glide direction of opening 633, also can be the structure that recess is arranged on the side of the glide direction of opening.
In addition, in the above-described embodiment, multiple recess 632 is arranged side by side in the mode formed along the row of orthogonal direction, if but in the gamut of multiple recess between the two ends of orthogonal direction (if namely mutually leaving compartment of terrain continuous arrangement in the mode connecting these two ends), then be arranged side by side with arbitrary shape in-between, such as, both can be arranged side by side with curve-like, also can be arranged side by side with zigzag fashion, recess is each other every also fixing.
In addition, in the above-described embodiment, valve gear 6 is cross valve, but valve gear has suitably several valve ports and this valve port communicated with each other or carries out the valve of opening and closing relative to valve chamber.In addition, can be also following structure, namely, at main part not form connected space, and do not form opening at sliding contact surface, spool be relative to valve chamber opening and closing valve port simply.
In addition, in the above-described embodiment, valve gear 6 is arranged at air conditioner 1 and switches cooling operation and heat running, but valve gear is arranged at suitable device in order to the stream of switch fluids.
In addition, open by above record for implementing optimum structure of the present utility model, method etc., but the utility model is not limited thereto.Namely, the utility model mainly carried out special diagram to specific embodiment and has been illustrated, but those skilled in the art are with can not departing from technological thought of the present utility model and object scope to the shape of above-mentioned embodiment, material, quantity, the various distortion in addition of other detailed construction.Therefore, the record limiting above-mentioned disclosed shape, material etc. is the illustrative record in order to easy understand the utility model, do not limit the utility model, the record that part or all component names limited therefore limited with the shape, material etc. that eliminate them carries out is contained in the utility model.
Claims (6)
1. a spool, it is contained in and is formed in the valve chamber of valve casing, and it is mobile by carrying out slip in the glide direction being formed with linearly shape on the valve seat of one or more valve ports of this valve chamber opening, come relative to above-mentioned this valve port of valve chamber opening and closing at least partially, above-mentioned spool has main part
The feature of above-mentioned spool is,
On the sliding contact surface overlapping with above-mentioned valve seat in aforementioned body portion, be provided with the multiple recesses forming enclosure space between above-mentioned valve seat,
Be arranged side by side in the gamut of above-mentioned multiple recess at least between the two ends in the direction orthogonal with above-mentioned glide direction of above-mentioned sliding contact surface.
2. spool according to claim 1, is characterized in that,
Above-mentioned valve seat is formed multiple above-mentioned valve port,
Aforementioned body portion is configured to close at least two above-mentioned valve ports relative to above-mentioned valve chamber simultaneously, and in the mode of this valve port that is interconnected, has towards the connected space of above-mentioned valve seat opening in above-mentioned sliding contact surface,
Above-mentioned multiple recess configures in the mode of the opening surrounding above-mentioned connected space.
3. a spool, it is contained in and is formed in the valve chamber of valve casing, and by be formed on the valve seat of multiple valve ports of this valve chamber opening along by regulation axle centered by glide direction carry out slips rotation, come relative to above-mentioned this valve port of valve chamber opening and closing at least partially, above-mentioned spool has main part
The feature of above-mentioned spool is,
On the sliding contact surface overlapping with above-mentioned valve seat in aforementioned body portion, be provided with the multiple recesses forming enclosure space between above-mentioned valve seat,
Aforementioned body portion is configured to close at least two above-mentioned valve ports relative to above-mentioned valve chamber simultaneously, and in the mode of this valve port that is interconnected, has towards the connected space of above-mentioned valve seat opening in above-mentioned sliding contact surface,
Above-mentioned multiple recess configures in the mode of the opening surrounding above-mentioned connected space.
4., according to the spool described in any one of claims 1 to 3, it is characterized in that,
The orthogonal direction of the above-mentioned glide direction of locus configurations Cheng Yu time slip in the aforementioned body portion at least partially of above-mentioned multiple recess seamlessly arranges.
5. a valve gear, it possesses: the valve casing forming valve chamber; There is the valve seat be formed towards the valve seat of one or more valve ports of this valve chamber opening; And be contained in above-mentioned valve chamber and carry out by the glide direction of edge regulation on above-mentioned valve seat the next spool relative to above-mentioned this valve port of valve chamber opening and closing that slides,
The feature of above-mentioned valve gear is,
Above-mentioned spool is made up of the spool described in any one of Claims 1 to 4.
6. an air conditioner, it possesses: the first flow path portion being connected with outdoor heat exchanger, expansion valve and indoor heat exchanger in turn; The second flow path portion be connected with compressor; And possess four valve ports being connected with the two ends of above-mentioned first flow path portion and above-mentioned second flow path portion respectively and switch the valve gear of the flow direction of the fluid in above-mentioned first flow path portion,
The feature of above-mentioned air conditioner is,
Above-mentioned valve gear is made up of valve gear according to claim 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-123313 | 2014-06-16 | ||
| JP2014123313A JP6359352B2 (en) | 2014-06-16 | 2014-06-16 | Valve body, valve device, and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204705086U true CN204705086U (en) | 2015-10-14 |
Family
ID=54284695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520382288.3U Active CN204705086U (en) | 2014-06-16 | 2015-06-05 | Spool, valve gear and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6359352B2 (en) |
| CN (1) | CN204705086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692065A (en) * | 2017-04-06 | 2018-10-23 | 株式会社鹭宫制作所 | Slidingtype switching valve and refrigerating circulation system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575597B (en) * | 2016-07-05 | 2019-10-22 | 浙江三花制冷集团有限公司 | A kind of sliding block and the reversal valve using the sliding block |
| JP2018204788A (en) * | 2017-06-02 | 2018-12-27 | 株式会社鷺宮製作所 | Slide-type selector valve and refrigeration cycle system |
| JP7448775B2 (en) * | 2019-11-13 | 2024-03-13 | ダイキン工業株式会社 | Refrigeration cycle equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52152422U (en) * | 1976-05-17 | 1977-11-18 | ||
| JP2002022041A (en) * | 2000-07-11 | 2002-01-23 | Saginomiya Seisakusho Inc | Four way valve |
| JP2004278557A (en) * | 2003-03-12 | 2004-10-07 | Ngk Spark Plug Co Ltd | Ceramic valve, its manufacturing method, and valve unit |
| 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 |
-
2014
- 2014-06-16 JP JP2014123313A patent/JP6359352B2/en active Active
-
2015
- 2015-06-05 CN CN201520382288.3U patent/CN204705086U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692065A (en) * | 2017-04-06 | 2018-10-23 | 株式会社鹭宫制作所 | Slidingtype switching valve and refrigerating circulation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6359352B2 (en) | 2018-07-18 |
| JP2016003688A (en) | 2016-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204705086U (en) | Spool, valve gear and air conditioner | |
| EP2909514B1 (en) | Valve system and method | |
| CN103225697B (en) | Anti-rotational component for fluid valve | |
| CN103245138B (en) | Expansion valve | |
| US10138771B2 (en) | Oil bypass structure of oil cooler | |
| DE102012111467B4 (en) | Ball valve with external sealing arrangement, in particular for use in motor vehicle refrigerant circuits | |
| CN203132196U (en) | Hot end internal guide structure of coaxial-type pulsed tube refrigerating machine | |
| CN107816560B (en) | Combined thermal management unit | |
| CN209705300U (en) | The fluid flow control member and fluid valve being used together with fluid valve | |
| EP2778527B1 (en) | Gas flow control device for a gas stove | |
| CN105042110A (en) | Valve for a Vehicle | |
| US20150128573A1 (en) | Diesel engine fluid coolant system having a solenoid-powered gate valve | |
| KR101610175B1 (en) | Oil cooler for vehicle | |
| CN101994861A (en) | Check valve apparatuses and methods | |
| CN102494047A (en) | Dual clutch transmission having a dry clutch with cooling chamber or conduit | |
| CN104395579B (en) | Fluid valve is especially used for the fluid valve of motor vehicles, and the heat regulating device including this valve | |
| CN101644347A (en) | Valve core for four-way switching valve and four-way switching valve thereof | |
| JP2013139833A (en) | Rotary valve | |
| CN102751250A (en) | Cooling device | |
| CN102650337B (en) | Valve structure body and check valve provided with the same | |
| CN108266568A (en) | A kind of thermal management assemblies | |
| EP3163135A1 (en) | A valve having a valve insert | |
| EP3076055A1 (en) | Four-way reversing valve and slider thereof, and slider manufacturing method | |
| CN215257974U (en) | Four-way valve and air conditioning system with same | |
| JP2016056890A (en) | Slide valve and refrigeration cycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |