CN104653842B

CN104653842B - On-off valve

Info

Publication number: CN104653842B
Application number: CN201410602044.1A
Authority: CN
Inventors: 上野知之; 石川聪士; 冈田聪
Original assignee: Saginomiya Seisakusho Inc
Current assignee: Saginomiya Seisakusho Inc
Priority date: 2013-11-19
Filing date: 2014-10-31
Publication date: 2017-04-12
Anticipated expiration: 2034-10-31
Also published as: JP2015098909A; CN104653842A; JP5946438B2

Abstract

The invention provides an on-off valve. A main valve can not approach or leave a valve seat suddenly, the service life of tubes, the on-off valve body and other devices arranged in the on-off valve can not generate surge pressure can be prolonged, and abnormal noise and noise can not be generated. An expanding flow channel slot (76) is formed on the inner peripheral wall (52b) of a main body (52), and between the outer peripheral wall of a main valve (12) and the inner peripheral wall (52b) of the main body (52); a turning point (76a) on a valve side of the expanding flow channel slot (76) is closer to an opening valve direction than an end portion (12b) on the valve side of the main valve (12); a throttling flow (78) is formed on the inner peripheral wall (52b) of a main body (52), and on a valve port (72) side of the expanding flow channel slot (76).

Description

Open and close valve

Technical field

The present invention relates to the refrigerant circulation loop of air conditioner etc. for example for air-conditioning, refrigeration plant etc. and utilize valve element Action controlling the open and close valve of the flowing of fluid.

Background technology

In the past, the guide electromagnetic valve that open and close valve for example possessed pilot valve is configured to such as (the Japanese Unexamined Patent Publication of patent documentation 1 2003-222261 publications) etc. it is open as.

Figure 17 is the longitudinal sectional view of existing guide electromagnetic valve 100, and Figure 18 is the enlarged partial cross section of Figure 17, figure 19～Figure 21 is the enlarged partial cross section of the operating state for illustrating electromagnetic valve 100.

I.e., as shown in figure 17, existing guide electromagnetic valve 100 possesses the control unit 104 with main valve 102.In addition, should The control unit 104 of electromagnetic valve 100 possesses the solenoid 108 for the insert of drive division 106.

Also, solenoid 108 possesses the bobbin 110 for being wound with coiling, by mould in the way of surrounding around bobbin 110 Resin processed 112 is molded as.Also, solenoid 108 is assemblied in the inside of magnetic frame 114, it is fixed on by magnetic frame 114 Drive division 106.

I.e., the insert of drive division 106 is formed at the drive division inserting hole of the central part of the base plate 116 of magnetic frame 114 118th, the drive division inserting hole 120 of bobbin 110.Also, in the female thread on the top of the attractor 122 for being formed at drive division 106 124 have been screwed binder bolt by being formed at the bolt insertion hole 128 of the central part of the upper plate portion 126 of magnetic frame 114 130。

Thus, drive division 106 is fixed in the insert of solenoid 108, constitutes the control unit 104 of electromagnetic valve 100.

In addition, drive division 106 possesses plunger housing 132, and possesses the post that can be moved up and down in the plunger housing 132 Plug 134.Also, between attractor 122 and plunger 134, be provided with to plunger 134 downwards, i.e., to main valve 102 to valve seat The helical spring 138a of 150 direction reinforcing.

I.e., helical spring 138a is installed on spring pilot hole 140 and the attraction that the side of attractor 122 of plunger 134 is formed Between son 122.

Also, electromagnetic valve 100 possesses valve body 142, in the valve chamber 146 for being formed at valve body 142 main valve is accommodated 102, and be configured to main valve 102 and leave or nearly form the valve seat 150 in valve body 142.

In addition, as shown in the enlarged drawing of Figure 18, main valve 102 abut with valve seat 150 be formed in part with diameter towards front The inclined taper surface 102a that end reduces.

Also, the helical spring reception groove of flange 102c and the bottom for being formed at valve body 142 in the centre of main valve 102 Between portion 142a, helical spring 138b is provided with compressive state, to main valve 102 to leaving the valve seat for being formed at valve body 142 150 direction reinforcing.

In addition, the middle body in the main valve 102 is formed with the first guiding path 152 of up/down perforation, in the first guiding path 152 Top be provided with guide's valve seat 154.Also, the lower end of plunger 134 be provided with leave or close guide's valve seat 154 it is spherical Pilot valve 156.

I.e., riveting processing is carried out by the lower end 134a to plunger 134, so as to pilot valve 156 is with from the lower end of plunger 134 The state that 134a is projected downwards is installed.

On the other hand, the side runner 158 and use for for example flowing into the fluids such as cold-producing medium is formed with valve body 142 In the secondary side runner 160 for discharging fluid.

Additionally, the valve seat 150 in valve body 142 is formed with valve port 162.

Also, formed by main valve 102 and the gap being formed between the inwall of the valve chamber 146 on the top of valve body 142 There are the secondary channels 164 of ring-type.In addition, valve body 142 for main valve 102 be the side of plunger 134, be formed with as space Guide valve chamber 146a, be configured to a side of side runner 158 and connect with guide valve chamber 146a via secondary channels 164.

In addition, in the internal perisporium 142b of valve body 142, and in the periphery wall 102d and valve master of the main valve 102 as valve element Between the internal perisporium 142b of body 142, the expanding flow path groove 166 connected with side runner 158 is formed with.

This electromagnetic valve 100 such as Figure 19～action as shown in Figure 20.

I.e., in the state of the energization in cut-out to solenoid 108, plunger 134 utilizes the active force of helical spring 138a Move to the direction for leaving attractor 122.

Thus, as shown in figure 18, be formed at plunger 134 lower end pilot valve 156 to the guide for being formed at main valve 102 The direction movement that guide's valve seat 154 on the top of path 152 is abutted is so as to closing first guiding path 152.

In addition, by movement from the plunger 134 to the direction for leaving attractor 122, main valve 102 be formed at valve body 142 valve seat 150 is abutted, so as to close the valve port 162 for being formed at valve seat 150.

In this condition, as an on high-tension side side runner 158 fluid via the periphery for being formed at main valve 102 pair Runner 164 and flow into the guide valve chamber 146a of valve body 142, so as to guide valve chamber 146a becomes high pressure, main valve 102 become to The state that the direction that valve seat 150 is abutted is reinforced.

On the other hand, it is powered by the solenoid 108 to electromagnetic valve 100, so as to as shown in figure 19, plunger 134 overcomes The active force of helical spring 138a and to the direction of attractor 122 movement.

Thus, as shown in figure 19, the pilot valve 156 of lower end of plunger 134 is formed to leaving the elder generation that is formed at main valve 102 The direction movement of guide's valve seat 154 on the top of guiding path 152, so as to close first guiding path 152.

As a result, as shown in the arrow E of Figure 20, the fluid of the high pressure in the guide valve chamber 146a of valve body 142 is via elder generation Guiding path 152 to the secondary side runner 160 as low-pressure side is discharged.Thus, it is configured to, under the pressure in guide valve chamber 146a Drop, due to the differential pressure with the fluid as an on high-tension side side runner 158, as shown in figure 21, main valve 102 is to lifting off a seat 150 direction movement, opens wide so as to open wide valve port 162.

Additionally, now, it is configured to, from the beginning of as an on high-tension side side runner 158, as shown in the arrow F of Figure 20, no Only produce from side runner 158 and flow directly into the flowing of valve port 162, but also via the expansion connected with side runner 158 Footpath flow path groove 166 produces the flowing of the lower end to main valve 102, and due to the flowing, as shown in figure 20, main valve 102 is to lifting off a seat 150 direction movement.

Additionally, the volume of valve chamber 146 is expanded by expanding flow path groove 166, so as to max-flow quantitative change during standard-sized sheet is more.Separately Outward, though helical spring 138b from without main valve during differential pressure 102 also can to lift off a seat 150 direction movement degree bullet The weaker spring of power is constituted.

Prior art literature

Patent documentation 1：Japanese Unexamined Patent Publication 2003-222261 publications

However, in this existing guide electromagnetic valve 100, in the state of the valve closing of Figure 18, being formed at valve body The corner part 166a of the valve port side of the expanding flow path groove 166 connected with side runner 158 of 142 internal perisporium 142b be located at than The corner part 102b of the side of valve port 162 of the outer peripheral face of main valve 102 is on the lower.

Therefore, when reaching the valve opening state of Figure 21 from the closed valve state of Figure 18, as shown in the arrow F of Figure 20, flow is very big, Produce the flowing from the lower end for leading to main valve 102 via expanding flow path groove 166 as an on high-tension side side runner 158.

Therefore, as Figure 11 expression discharge characteristic curve chart single dotted broken line shown in, due to the work of the unexpected flowing With, cause main valve 102 suddenly to lift off a seat 150 direction movement, produce surge, pipe arrangement, as the electromagnetism of open and close valve The lifetime of valve itself and other devices being disposed in pipe arrangement, and also become abnormal sound, the noise for producing impulsive sound etc. The reason for.

In addition, so, as shown in the arrow F of Figure 20, due to produce from as an on high-tension side side runner 158 via expansion Footpath flow path groove 166 leads to the flow of the lower end of main valve 102 and greatly flows, therefore hinders the guide valve chamber 146a of valve body 142 The flowing that the fluid of interior high pressure is discharged via first guiding path 152 to the secondary side runner 160 as low-pressure side, so as to pilot valve 156 move is bad, and the action of electromagnetic valve 100 itself is also bad.

On the other hand, when reaching the closed valve state of Figure 18 from the valve opening state of Figure 21, as shown in the arrow F of Figure 20, due to The flowing from the lower end for leading to main valve 102 via expanding flow path groove 166 as an on high-tension side side runner 158 is produced, therefore Cause main valve 102 to be drawn into the direction of valve seat 150 suddenly, produce surge, pipe arrangement, as the electromagnetic valve sheet of open and close valve The lifetime of body, other devices being disposed in pipe arrangement, and also become the reason for producing abnormal sound, the noises such as impulsive sound.

The content of the invention

The present invention in view of this present situation, it is therefore an objective to a kind of open and close valve is provided, its from closed valve state reach valve opening state when, The flowing from the lower end for leading to valve element via expanding flow path groove as an on high-tension side side runner will not be suddenly produced, valve element is not Can break away because of the unexpected flowing valve seat, will not produce surge, pipe arrangement, open and close valve itself and being disposed in is matched somebody with somebody The life-span of other devices in pipe is elongated, and will not produce the abnormal sounds such as impulsive sound, noise.

Further it is an object to a kind of open and close valve, it will not dash forward when closed valve state is reached from valve opening state The flowing from the lower end for leading to valve element via expanding flow path groove as an on high-tension side side runner is so produced, valve element will not be because of this Unexpected flowing and be drawn into the direction of valve seat suddenly, valve element does not abut suddenly valve seat, will not produce surge, pipe arrangement, The life-span of open and close valve itself and other devices being disposed in pipe arrangement is elongated, and will not produce the abnormal sounds such as impulsive sound, make an uproar Sound.

Further it is an object to a kind of pilot-operated type open and close valve, its when valve opening state is reached from closed valve state, When reaching closed valve state from valve opening state, will not produce suddenly from logical via expanding flow path groove as an on high-tension side side runner Toward the flowing of the lower end of main valve, main valve will not suddenly be toward or away from valve seat, will not produce percussive pressure because of the unexpected flowing The life-span of power, pipe arrangement, open and close valve itself and other devices being disposed in pipe arrangement is elongated, and will not produce impulsive sound etc. Abnormal sound, noise, and the action without pilot valve is bad.

The present invention is the invention proposed to realize problem of the prior art as described above and purpose, this The open and close valve of invention is configured to valve element and moves to the direction for leaving the valve seat for being formed at valve body, and so as to open wide above-mentioned valve seat is located at Valve port, above-mentioned open and close valve is characterised by,

On the internal perisporium of above-mentioned valve body, and it is formed between the periphery wall of above-mentioned valve element and the internal perisporium of valve body Expanding flow path groove, also,

The position of the end of the valve port side than valve element during valve closing is located at the corner part of the valve port side of above-mentioned expanding flow path groove Put and more formed by the mode of valve opening position,

It is configured to, in the internal perisporium of above-mentioned valve body, and in the valve port side of above-mentioned expanding flow path groove, from valve closing up to valve opening Midway is formed with throttling runner.

By so composition, formed between the internal perisporium in valve body and the periphery wall in valve element and the internal perisporium of valve body There is expanding flow path groove, the position of the end of the valve port side than valve element during valve closing is located at the corner part of the valve port side of expanding flow path groove Put and more formed by the mode of valve opening position, therefore the internal perisporium in valve body and the valve port side in expanding flow path groove, from valve closing when Throttling runner is formed with to valve opening midway.

Thus, due to being to be formed with the state of throttling runner up to valve opening midway from valve closing, therefore flow via throttling stream Road becomes slow, from closed valve state reach valve opening state when, from as an on high-tension side side runner via expanding flow path groove Flowing towards the lower end of valve element will not be produced suddenly, but become slow flowing.

, due to the slow flowing as a result, following open and close valve can be provided, i.e., valve element will not break away valve seat, and It is lentamente to leave, the longevity of surge, pipe arrangement, open and close valve itself and other devices being disposed in pipe arrangement will not be produced Life is elongated, and will not produce the abnormal sounds such as impulsive sound, noise.

Further, since be formed with before when being from valve half-open position to valve closing throttling runner state, therefore flow via Throttling runner become slow, from valve opening state reach closed valve state when, from as an on high-tension side side runner via expanding Flow path groove leads to the flowing of the lower end of valve element will not be produced suddenly, but become slow flowing.

As a result, following open and close valve can be provided, i.e., valve element will not be drawn into the direction of valve seat suddenly, valve element will not Suddenly valve seat is connected to, surge will not be produced, pipe arrangement, open and close valve itself and other devices for being disposed in pipe arrangement Life-span is elongated, and will not produce the abnormal sounds such as impulsive sound, noise.

In addition, the open and close valve of the present invention is characterised by, in the internal perisporium of above-mentioned valve body, and in above-mentioned expanding flow path groove Valve port side be formed with throttling wall so that from valve closing up to valve opening midway be formed with throttling runner.

So, it is formed with throttling wall due to the internal perisporium in valve body and in the valve port side of expanding flow path groove so that from Valve closing is formed with throttling runner up to valve opening midway, therefore flowing is lentamente directed via throttling wall, from closed valve state When reaching valve opening state, the flowing from the lower end for leading to valve element via expanding flow path groove as an on high-tension side side runner will not Suddenly produce, but become slow flowing.

In addition, the open and close valve of the present invention is characterised by, above-mentioned throttling wall is by parallel with the periphery wall of above-mentioned valve element Wall is formed.

By so composition, due to throttling, wall is formed by the wall parallel with the periphery wall of valve element, therefore is from valve closing The state of the throttling runner of constant cross section of fluid channel area is formed with up to valve opening midway, is become via throttling runner so as to flow Obtain constant and slow.

Thus, from closed valve state reach valve opening state when, from valve opening state reach closed valve state when, from as high pressure Side runner of side leads to the flowing of the lower end of valve element via expanding flow path groove will not be produced suddenly, but flowing is via throttling Runner and become constant and slow.

Therefore, because the slow constant flowing, valve element will not suddenly be toward or away from valve seat, will not produce percussive pressure The life-span of power, pipe arrangement, open and close valve itself and other devices being disposed in pipe arrangement is elongated, will not produce the abnormal sounds such as impulsive sound, Noise.

In addition, the open and close valve of the present invention is characterised by, in above-mentioned expanding flow path groove, to reach the side of above-mentioned throttling wall Formula forms the inclined angular guide surfaces in oriented valve port side.

By so composition, by way of to reach throttling wall the inclined to valve port side of expanding flow path groove is formed at Angular guide surfaces, from the stream of the lower end for leading to valve element via expanding flow path groove, throttling runner as an on high-tension side side runner Efficiency of movement lentamente flows well.

In addition, the open and close valve of the present invention is characterised by, above-mentioned throttling wall is formed at the complete cycle of the internal perisporium of valve body.

Because the wall that throttles is formed at the complete cycle of the internal perisporium of valve body, therefore it is in valve body by so composition The complete cycle scope of internal perisporium is formed with the state of throttling runner.Therefore, the flowing towards the lower end of valve element is whole in the lower end of valve element All scopes make flowing become constant and slow via throttling runner.

Therefore, because the slow constant flowing, valve element will not suddenly be toward or away from valve seat, will not produce percussive pressure The life-span of power, pipe arrangement, open and close valve itself and other devices being disposed in pipe arrangement is elongated, and will not produce impulsive sound etc. Abnormal sound, noise.

In addition, the open and close valve of the present invention is characterised by, above-mentioned throttling wall is formed at of the internal perisporium of valve body Point.

So, the wall that throttles can also be formed at a part for the internal perisporium of valve body.

In addition, the open and close valve of the present invention is characterised by, above-mentioned throttling wall to separate fixed interval in the way of in valve master The internal perisporium of body is formed with multiple.

So, throttle wall can also to separate fixed interval in the way of valve body internal perisporium be formed with it is multiple.

In addition, the open and close valve of the present invention is characterised by, above-mentioned angular guide surfaces are correspondingly formed with above-mentioned throttling wall.

So, angular guide surfaces can also be correspondingly formed with above-mentioned throttling wall.

In addition, open and close valve of the invention is characterised by, the end difference of undergauge is formed with the periphery wall of above-mentioned valve element.

By so composition, the cross section of fluid channel area of the runner being made up of the periphery wall of expanding flow path groove and valve element is by contracting The end difference in footpath and increase, therefore the flow efficiency towards the lower end of valve element flows well, can make max-flow during standard-sized sheet Quantitative change is more.

In addition, the open and close valve of the present invention is characterised by, it is possess above-mentioned valve element to enter the valve port for being formed at above-mentioned valve seat The main valve of row opening and closing and the pilot-operated type open and close valve of pair pilot valve being opened and closed with the first guiding path of flow passage.

By so composition, using the teaching of the invention it is possible to provide following pilot-operated type open and close valve, i.e., from as an on high-tension side side runner via Expanding flow path groove leads to the flowing of the lower end of main valve becomes slow constant flowing, therefore the height in the pilot valve room of valve body The fluid of pressure will not hinder the flowing discharged to the secondary side runner as low-pressure side via first guiding path, also without pilot valve Action it is bad.

In addition, the open and close valve of the present invention is characterised by, it is provided with compressive state between above-mentioned main valve and valve body Helical spring, to above-mentioned main valve to the direction reinforcing for leaving the valve seat located at valve body, also,

Above-mentioned helical spring is configured in the position than above-mentioned expanding flow path groove by the top.

By so composition, because helical spring is configured in the position than expanding flow path groove by the top, therefore will not hinder From the stream of the lower end for leading to the main valve as valve element via expanding flow path groove, throttling runner as an on high-tension side side runner Dynamic, efficiency flows well.

In addition, the open and close valve of the present invention is characterised by,

Above-mentioned open and close valve is following electromagnetic valve, is possessed：

The plunger moved by the energization of solenoid；

With the attractor that above-mentioned plunger is opposed to configuration；And

The valve element accordingly moved with the movement of above-mentioned plunger,

It is configured to, by being powered to above-mentioned solenoid, to attractor side shifting, valve element is formed at valve master to leaving to plunger The direction movement of the valve seat of body, so as to open wide the valve port for being formed at above-mentioned valve seat.

The effect of invention is as follows.

According to the present invention, in the internal perisporium of valve body, and formed between the periphery wall of valve element and the internal perisporium of valve body There is expanding flow path groove, the corner part of the valve port side of expanding flow path groove is formed as being located at the end of the valve port side than valve element during valve closing Position more lean on valve opening position, therefore in the internal perisporium of valve body, and in the valve port side of expanding flow path groove, from valve closing up to valve opening Midway is formed with throttling runner.

Thus, due to being to be formed with the state of throttling runner up to valve opening midway from valve closing, therefore flow via throttling stream Road and become slow, from closed valve state reach valve opening state when, from as an on high-tension side side runner via expanding runner Groove leads to the flowing of the lower end of valve element will not be produced suddenly, but become slow flowing.

, due to the slow flowing as a result, following open and close valve can be provided, i.e., valve element will not break away valve seat, and It is lentamente to leave, the longevity of surge, pipe arrangement, open and close valve itself and other devices being disposed in pipe arrangement will not be produced Life is elongated, will not produce the abnormal sounds such as impulsive sound, noise.

Further, since be formed with before when being from valve half-open position to valve closing throttling runner state, therefore flow via Throttling runner and become slow, from valve opening state reach closed valve state when, from as an on high-tension side side runner via expansion Footpath flow path groove leads to the flowing of the lower end of valve element will not be produced suddenly, but become slow flowing.

As a result, following open and close valve can be provided, i.e., valve element will not be drawn into the direction of valve seat suddenly, valve element will not Suddenly valve seat is abutted, the longevity of surge, pipe arrangement, open and close valve itself and other devices being disposed in pipe arrangement will not be produced Life is elongated, and will not produce the abnormal sounds such as impulsive sound, noise.

Description of the drawings

Fig. 1 is the longitudinal sectional view of the open and close valve 10 of the present invention.

Fig. 2 is the enlarged partial cross section of Fig. 1.

Fig. 3 (A) is the partial cross axonometric chart of the valve body 52 of the open and close valve 10 of the present invention, and Fig. 3 (B) is opening for the present invention The partial perspective view of the valve body 52 of valve closing 10.

Fig. 4 is the enlarged partial cross section of the operating state of the open and close valve 10 for illustrating the present invention.

Fig. 5 is the enlarged partial cross section for illustrating the valve opening of open and close valve 10 of the invention flow regime in the near future.

Fig. 6 is the enlarged partial cross section of the flow regime of the full-gear of the open and close valve 10 for illustrating the present invention.

Fig. 7 is the enlarged partial cross section of the flow regime before the valve closing of the open and close valve 10 for illustrating the present invention.

Fig. 8 (A) is the phantom of the throttling wall 80 of the open and close valve 10 of the present invention, and Fig. 8 (B) is the opening and closing of the present invention The phantom of the throttling wall 80 of valve 10.

Fig. 9 (A) is the partial cross axonometric chart of the other embodiment of the valve body 52 of the open and close valve 10 for representing the present invention, is schemed 9 (B) are the partial perspective views of the other embodiment of the valve body 52 of the open and close valve 10 for representing the present invention.

Figure 10 (A) is the partial cross axonometric chart of the other embodiment of the valve body 52 of the open and close valve 10 for representing the present invention, Figure 10 (B) is the partial perspective view of the other embodiment of the valve body 52 of the open and close valve 10 for representing the present invention.

Figure 11 is the curve chart of the discharge characteristic for representing open and close valve.

Figure 12 is not form expanding flow path groove 76, the longitudinal sectional view of the open and close valve 200 of throttling runner 78.

Figure 13 be represent the present invention open and close valve 10 other embodiment closed valve state with Fig. 1 identicals longitudinal direction section view Figure.

Figure 14 is the longitudinal sectional view of the valve opening state of the open and close valve 10 for representing Figure 13.

Figure 15 be represent the present invention open and close valve 10 other embodiment closed valve state with Fig. 1 identicals longitudinal direction section view Figure.

Figure 16 is the longitudinal sectional view of the valve opening state of the open and close valve 10 for representing Figure 15.

Figure 17 is the longitudinal sectional view of the electromagnetic valve 100 of existing pilot-operated type.

Figure 18 is the enlarged partial cross section of Figure 17.

Figure 19 is the enlarged partial cross section of the operating state for illustrating electromagnetic valve 100.

Figure 20 is the enlarged partial cross section of the operating state for illustrating electromagnetic valve 100.

Figure 21 is the enlarged partial cross section of the operating state for illustrating electromagnetic valve 100.

In figure：

10-open and close valve, 12-main valve, 12a-seal groove, 12b-lower end (end), 12c-flange, 12d-periphery Wall, 14-control unit, 16-drive division, 18-solenoid, 20-bobbin, 22-moulded resin, 24-magnetic frame, 26- Base plate, 28-drive division inserting hole, 30-drive division inserting hole, 32-attractor, 34-female thread, 36-upper plate portion, 38-bolt insertion hole, 40-binder bolt, 42-plunger housing, 44-plunger, 44b-lower end, 46-sealing member, 48a- Helical spring, 48b-helical spring, 48c-helical spring, 50-spring pilot hole, 52-valve body, 52a-inner circumferential side is convex Edge, 52b-internal perisporium, 54-holding firmware, 56-valve chamber, 56a-guide's valve chamber, 58-guide valve seat member, 58a-connection Road, 60-valve seat, 60a-periphery wall, 62-first guiding path, 64-guide valve seat, 66-pilot valve, 68-side runner, 70-secondary side runner, 72-valve port, 74-secondary channels, 76-expanding flow path groove, 76a-corner part, 78-throttling runner, 80-throttling wall, 82-angular guide surfaces, 84-end difference, 86-installation portion, 88-valve element, 90-main valve chamber, 92-even Path, 100-electromagnetic valve, 102-main valve, 102a-taper surface, 102b-corner part, 102c-flange, 102d-periphery wall, 104-control unit, 106-drive division, 108-solenoid, 110-bobbin, 112-moulded resin, 114-magnetic frame, 116-base plate, 118-drive division inserting hole, 120-drive division inserting hole, 122-attractor, 124-female thread, 126- Upper plate portion, 128-bolt insertion hole, 130-binder bolt, 132-plunger housing, 134-plunger, 138a-helical spring, 138b-helical spring, 140-spring pilot hole, 142-valve body, 142a-helical spring reception groove portion, 142b-inner circumferential Wall, 146-valve chamber, 146a-guide's valve chamber, 150-valve seat, 152-first guiding path, 154-guide valve seat, 156-guide Valve, 158-side runner, 160-secondary side runner, 162-valve port, 164-secondary channels, 166-expanding flow path groove, 166a-corner part, 200-electromagnetic valve.

Specific embodiment

Hereinafter, based on accompanying drawing embodiments of the present invention (embodiment) are illustrated in more detail.

(embodiment 1)

Fig. 1 is the longitudinal sectional view of the open and close valve 10 of the present invention, and Fig. 2 is the enlarged partial cross section of Fig. 1, and Fig. 3 (A) is this The partial cross axonometric chart of the valve body 52 of the open and close valve 10 of invention, Fig. 3 (B) is the valve body 52 of the open and close valve 10 of the present invention Partial perspective view, Fig. 4 is the enlarged partial cross section of the operating state of the open and close valve 10 for illustrating the present invention, and Fig. 5 is to illustrate this The enlarged partial cross section of the bright valve opening of open and close valve 10 flow regime in the near future, Fig. 6 is the open and close valve 10 for illustrating the present invention Full-gear flow regime enlarged partial cross section, Fig. 7 be illustrate the present invention open and close valve 10 valve closing before stream The enlarged partial cross section of dynamic state.

In FIG, the overall open and close valve 10 for representing the present invention of symbol 10.

Additionally, Fig. 1 is represented is applied to the embodiment for possessing the guide electromagnetic valve of pilot valve by the open and close valve 10 of the present invention.

As shown in figure 1, the open and close valve 10 of the present invention possesses the control unit 14 with main valve 12.In addition, the open and close valve 10 Control unit 14 possesses the solenoid 18 for the insert of drive division 16.

Also, solenoid 18 possesses the bobbin 20 for coiling winding, by moulding in the way of surrounding around bobbin 20 Resin 22 is molded.Also, solenoid 18 is assemblied in the inside of magnetic frame 24, via magnetic frame 24 driving is fixed on Portion 16.

That is, the driving of the drive division inserting hole 28 of central part, bobbin 20 in the base plate 26 for being formed at magnetic frame 24 Drive division 16 is inserted in portion's inserting hole 30.Also, binder bolt 40 is via the central authorities of the upper plate portion 36 for being formed at magnetic frame 24 The bolt insertion hole 38 in portion is screwed with the female thread 34 on the top of the attractor 32 for being formed at drive division 16.

Thus, drive division 16 is inserted and be fixed on to solenoid 18, constitutes the control unit 14 of open and close valve 10.

In addition, drive division 16 possesses plunger housing 42, and possesses the plunger that can be moved up and down in the plunger housing 42 44.Also, be provided between attractor 32 and plunger 44 to plunger 44 downwards, i.e., to direction from main valve 12 to valve seat 60 The helical spring 48a of reinforcing.

I.e., helical spring 48a is installed on spring pilot hole 50 and the attractor 32 that the side of attractor 32 of plunger 44 is formed Between.

Also, open and close valve 10 possesses valve body 52, it is configured to accommodate main valve in the valve chamber 56 for being formed at valve body 52 12, and main valve 12 is toward or away from the valve seat 60 for being formed at valve body 52.

In addition, as shown in the enlarged drawing of Fig. 2, main valve 12 abut with valve seat 60 be formed in part with seal groove 12a, ring The sealing member 46 of shape carries out riveting processing and is fixed on this together with the holding firmware 54 of loop-shaped by the lower end 12b to main valve 12 In seal groove 12a.

Also, the flange 12c and the inner circumferential side of the middle body for being provided projectingly on valve body 52 in the upper end of main valve 12 Between inner circumferential side flange 52a, helical spring 48b is provided with compressive state, valve body 52 is formed to leaving to main valve 12 The direction reinforcing of valve seat 60.

I.e., as shown in Fig. 2 helical spring 48b is configured in the position than expanding flow path groove 76 described later by the top.

By so composition, because helical spring 48b is configured in the position than expanding flow path groove 76 by the top, therefore will not Hinder from as an on high-tension side side runner 68 via expanding flow path groove 76, throttling runner 78 to the main valve 12 as valve element The flowing of lower end, efficiency flows well.

In addition, as shown in the enlarged drawing of Fig. 2, the first guiding path 62 of up/down perforation is formed in the middle body of the main valve 12, Guide's valve seat 64 is provided with the top of the first guiding path 62.Also, it is provided with the lower end of plunger 44 and is toward or away from the pilot valve The spherical pilot valve 66 of seat 64, the pilot valve 66 is configured in the guide valve chamber 56a in the space as the side of plunger 44 of main valve 12.

I.e., pilot valve 66 in guide's valve seat member 58 of the lower end of non-movable piston 44 via being installed with compressive state Helical spring 48c is reinforced downwards, is installed with the state projected downwards from guide's valve seat member 58.In addition, in guide Valve seat member 58, is formed with the access 58a connected with guide valve chamber 56a.

On the other hand, as shown in Figure 1 and Figure 2, the primary side for for example flowing into the fluids such as cold-producing medium is formed with valve body 52 Runner 68 and the secondary side runner 70 for discharging fluid.

Additionally, being formed with valve port 72 in valve body 52 and in valve seat 60.

Also, form ring-type using main valve 12 and the gap being formed between the inwall of the valve chamber 56 on the top of valve body 52 Secondary channels 74, be configured to a side of side runner 68 and connect with the guide valve chamber 56a of valve body 52.

In addition, in the internal perisporium 52b of valve body 52, and in the periphery wall 12d and valve body 52 of the main valve 12 as valve element Internal perisporium 52b between, be formed with the expanding flow path groove 76 connected with side runner 68.

Also, as shown in Fig. 2, Fig. 3 (A), Fig. 3 (B), in the internal perisporium 52b of valve body 52, and in expanding flow path groove 76 The side of valve port 72, Fig. 2, Fig. 4 as be described hereinafter～illustrated in fig. 7, to be formed with throttling runner up to valve opening midway from valve closing 78 mode, is formed with throttling wall 80.

I.e., as shown in the enlarged drawing of Fig. 2, when the corner part 76a of the side of valve port 72 of expanding flow path groove 76 is with positioned at than valve closing The outer peripheral face as the main valve 12 of valve element in the side of valve port 72 end (lower end 12b) position by valve opening position mode shape Into.

Thus, it is configured to the internal perisporium 52b in valve body 52, and in the side of valve port 72 of expanding flow path groove 76, as be described hereinafter Fig. 2, Fig. 4～illustrated in fig. 7, it is formed with throttling runner 78 up to valve opening midway from valve closing.

In addition, in the internal perisporium 52b of valve body 52, and in the side of valve port 72 of expanding flow path groove 76, with from valve closing up to opening Valve midway is formed with the mode of throttling runner 78, is formed with throttling wall 80.

So, in the internal perisporium 52b of valve body 52, and in the side of valve port 72 of expanding flow path groove 76, with from valve closing up to opening Valve midway is formed with the mode of throttling runner 78 and is formed with throttling wall 80, therefore by lentamente guiding via throttling wall 80 Flowing, so as to from closed valve state reach valve opening state when, will not produce suddenly from as an on high-tension side side runner via Expanding flow path groove reaches the flowing of the lower end of valve element, becomes slow flowing.

Additionally, in this embodiment, such as shown in Fig. 3 (A), Fig. 3 (B), the wall 80 that throttles is formed at the inner circumferential of valve body 52 The complete cycle (the i.e., part beyond a side runner 68) of wall 52b.

By so composition, the wall 80 that throttles is formed at the complete cycle of the internal perisporium 52b of valve body 52, therefore is in valve body The complete cycle scope of 52 internal perisporium 52b is formed with the state of throttling runner 78.Therefore, as described later, reach as valve element The flowing of the lower end of main valve 12 main valve 12 lower end complete cycle scope via throttling runner 78 flow constant and slow.

Therefore, by the slow constant flowing, main valve 12 will not suddenly be toward or away from valve seat 60, will not produce punching The life-span for hitting pressure, pipe arrangement, open and close valve itself and other devices being disposed in pipe arrangement is elongated, and will not produce impact The abnormal sound of sound etc., noise.

In addition, as shown in Fig. 2 in this embodiment, throttling wall 80 is by the periphery wall 12d with the main valve 12 as valve element Parallel wall is formed.However, the throttling wall 80 is correspondingly appropriate with the shape of the periphery wall 12d of the main valve 12 as valve element Change, for example, such as shown in Fig. 8 (A), throttling wall 80 can also be configured to be rolled tiltedly to valve port 72, in addition, such as Fig. 8 (B) Shown, in the case that the periphery wall 12d, throttling wall 80 in main valve 12 is rolled tiltedly to valve port, throttling wall 80 can also be constituted It is to be formed by the wall parallel with the periphery wall 12d of main valve 12, can suitably changes.

In addition, as shown in the enlarged drawing of Fig. 2, in the side wall of the lower section of expanding flow path groove 76, to reach throttling wall 80 Mode forms the inclined angular guide surfaces 82 in the side of oriented valve port 72.By so composition, towards under the main valve 12 as valve element The flowing at end is formed at drawing to the inclined inclination in the side of valve port 72 for expanding flow path groove 76 in the way of utilizing to reach throttling wall 80 Guide face 82, from efficiency is slow well via expanding flow path groove 76, throttling runner 78 as an on high-tension side side runner 68 Ground flowing.

In this case, angular guide surfaces 82 are as shown in the dotted line of the enlarged drawing of the valve opening state of Fig. 6, it is desirable to be formed as inclining The lower end of main valves 12 of the extended line L of the side of valve port 72 of guide surface 82 in the state of valve opening (standard-sized sheet), by being used for valve element 12b (the i.e., part most prominent to the lateral vertical of valve port 72 lower section of main valve 12) is more on the lower (side of valve port 72).

By so composition, due to angular guide surfaces 82 the side of valve port 72 extended line L by the lower end 12b than main valve 12 More on the lower (side of valve port 72), therefore will not be hindered by main valve by the fluid that angular guide surfaces 82 are guided.

Therefore, main valve 12 is led to via expanding flow path groove 76, throttling runner 78 from as on high-tension side a side runner 68 The flowing more efficiency of lower end lentamente flow well, and flow during valve opening becomes big.

In addition, angular guide surfaces 82 are as shown in the dotted line of the enlarged drawing of the valve opening state of Fig. 6, it is desirable to be formed as inclined lead Scope M that the extended line L of the side of valve port 72 in face 82 passes through valve port 72.

By so composition, due to being formed as the model that the extended line L of the side of valve port 72 of angular guide surfaces 82 passes through valve port 72 Enclose M, therefore from leading to the lower end of main valve 12 via expanding flow path groove 76, throttling runner 78 as an on high-tension side side runner 68 Flowing from angular guide surfaces 82 reliably to valve port 72 direction guide.

Thus, the flowing towards the lower end of the main valve 12 is easily flowed in valve port 72, and flow during valve opening becomes big.

Also, in the open and close valve 10 of the embodiment, as shown in fig. 6, be formed as the side of valve port 72 of angular guide surfaces 82 Extended line L intersects with the periphery wall 60a of valve seat 60, it may be desirable to the embodiment shown in Figure 16 as be described hereinafter, is formed as inclining like that The extended line L of the side of valve port 72 of guide surface 82 does not intersect with the periphery wall 60a of valve seat 60.

It is not outer with valve seat 60 due to being formed as the extended line L of the side of valve port 72 of angular guide surfaces 82 by so composition Perisporium 60a intersects, therefore leads to main valve via expanding flow path groove 76, throttling runner 78 from as an on high-tension side side runner 68 The flowing of 12 lower end will not be hindered when the guiding of guide surface 82 is inclined by by the periphery wall 60a of valve seat 60.

Thus, the flowing towards the lower end of the main valve 12 is easily flowed directly in valve port 72, and flow during valve opening is further Become big.

Additionally, in this case, be preferably formed into angular guide surfaces 82 the side of valve port 72 extended line L not only not with valve seat 60 Periphery wall 60a it is intersecting nor intersect ground directly arrival valve port 72 with valve seat 60.

Also, as shown in the enlarged drawing of Fig. 2, in the periphery wall 12d of the main valve 12 as valve element the ladder of undergauge is formed with Portion 84.

By so composition, the cross section of fluid channel face of the runner being made up of the periphery wall 12d of expanding flow path groove 76 and main valve 12 Product is increased by the end difference 84 of undergauge, therefore the flow efficiency towards the lower end of the main valve 12 as valve element flows well It is dynamic, max-flow quantitative change during standard-sized sheet can be made many.

The open and close valve 10 of the invention such as Fig. 2, Fig. 4～action as shown in Figure 7 for so constituting.

I.e., in the state of energization of the cut-out to solenoid 18, plunger 44 using the active force of helical spring 48a to Leave the direction movement of attractor 32.

Thus, as shown in Fig. 2 be formed at the pilot valve 66 of the lower end of plunger 44 is formed at first guiding path to main valve 12 The direction movement that guide's valve seat 64 on 62 top is abutted, so as to close first guiding path 62.

In addition, by movement from the plunger 44 to the direction for leaving attractor 32, main valve 12 be formed at valve body 52 Valve seat 60 is abutted, so as to close the valve port 72 for being formed at valve seat 60.

In this condition, as an on high-tension side side runner 68 fluid via the periphery for being formed at main valve 12 sidestream Road 74 flows into the guide valve chamber 56a of valve body 52, guide valve chamber 56a becomes high pressure, becomes main valve 12 to abutting with valve seat 60 The state that direction is reinforced.

Additionally, now, as an on high-tension side side runner 68 fluid via being formed at guide's valve seat member 58 Access 58a flows into the space of the top of pilot valve 66, and pilot valve 66 is reinforced downwards so as to pass through differential pressure, and by the work Firmly with the active force of helical spring 48c remaining off the state of first guiding path 62.

On the other hand, it is powered by the solenoid 18 to open and close valve 10, so as to as shown in figure 4, plunger 44 overcomes spiral The active force of spring 48a and to the direction of attractor 32 movement.

Thus, as shown in figure 4, being formed at the pilot valve 66 of the lower end of plunger 44 to leaving the first conducting that is formed at main valve 12 The direction movement of guide's valve seat 64 on the top on road 62, so as to first guiding path 62 is opened wide.

As a result, as shown in the arrow A of Fig. 5, the fluid of the high pressure of the guide valve chamber 56a of valve body 52 is via first guiding path 62 to the secondary side runner 70 as low-pressure side is discharged.Thus, be configured to, the pressure drop in guide valve chamber 56a, due to work For the differential pressure of the fluid of an on high-tension side side runner 68, as shown in figure 5, main valve 12 to lift off a seat 60 direction movement, from And valve port 72 is opened wide.Additionally, even if helical spring 48b is when not having differential pressure, main valve 12 also can to lift off a seat 60 side To the weaker spring of the elasticity rate of mobile degree.

Additionally, now, as shown in the arrow B of Fig. 5, produce from as an on high-tension side side runner 68 via with primary side The expanding flow path groove 76 of the connection of runner 68 leads to the flowing of the lower end of main valve 12.

In addition, as described above, in the side wall of the lower section of expanding flow path groove 76, to reach throttling wall 80 in the way of be formed with To the inclined angular guide surfaces 82 in the side of valve port 72.By so composition, using in the way of arrival throttling wall 80 expansion is formed at Footpath flow path groove 76 to the inclined angular guide surfaces 82 in the side of valve port 72, from as an on high-tension side side runner 68 via expanding stream Road groove 76, throttling runner 78 lead to the flow efficiency of the lower end of the main valve 12 as valve element and lentamente flow well.

In addition, as shown in the arrow C of Fig. 5, the present invention the valve opening of open and close valve 10 in the near future, produce via with primary side The expanding flow path groove 76 of the connection of runner 68, throttling runner 78 lead to the flowing of the lower end of the main valve 12 as valve element and become slow Slowly.Thus, from closed valve state reach valve opening state when, from as an on high-tension side side runner 68 via expanding flow path groove 76 Flowing towards the lower end of main valve 12 will not be produced suddenly, become slow flowing.

Also, because the flowing of the lower end for leading to main valve 12 via throttling runner 78 becomes slow constant flowing, because This will not hinder the fluid of the high pressure in the guide valve chamber 56a of valve body 52 via first guiding path 62 to as the secondary of low-pressure side The flowing A that side runner 70 is discharged, it is possible to increase the bad pilot-operated type open and close valve 10 of action without main valve 12.

, by the slow flowing as a result, following open and close valve 10 can be provided, i.e., main valve 12 will not break away valve Seat 60, but lentamente leaves, and will not produce surge, pipe arrangement, open and close valve 10 itself and be disposed in pipe arrangement other The life-span of device is elongated, and will not produce the abnormal sounds such as impulsive sound, noise.Additionally, Fig. 6 represents the flowing of valve opening state, the shape Under state, there is no throttling runner 78, cross section of fluid channel area increases the amount equivalent to expanding flow path groove 76, can make most in standard-sized sheet Big flow becomes many.

Also, it is from valve half-open position to valve closing before the valve closing of open and close valve 10 of the present invention as shown in the arrow D of Fig. 7 When before be formed with throttling runner 78 state, therefore flow via throttling runner 78 become slow, reach from valve opening state and close During valve state, lead under the main valve 12 as valve element via expanding flow path groove 76 as an on high-tension side side runner 68 from this The flowing at end will not suddenly be produced but become slow flowing.

As a result, following open and close valve 10 can be provided, i.e., main valve 12 will not suddenly be drawn into the direction of valve seat 60, it is main Valve 12 will not suddenly be connected to valve seat 60, therefore will not produce surge, pipe arrangement, open and close valve 10 itself and be disposed in The life-span of other devices in pipe is elongated, and will not produce the abnormal sounds such as impulsive sound, noise.

Such as the curve chart of the expression discharge characteristic of Figure 11 is shown in solid, in the open and close valve 10 of the present invention, with such as Figure 11 Expression discharge characteristic curve chart single dotted broken line as shown in the situation of electromagnetic valve 100 of existing pilot-operated type compare, Unexpected valve opening, closed valve state will not be become, become the discharge characteristic in the little region of the increment rate comprising flow.

In addition, with the expanding flow path groove as shown in the dotted line of the curve chart for not forming the expression discharge characteristic such as Figure 11 76th, throttle runner 78 electromagnetic valve 200 (with reference to Figure 12) (in fig. 12, for constituting with the identical of open and close valve 10 of the present invention Part is represented with the symbol for having added 200) compare, as the open and close valve 10 of the present invention, it is formed with opening for expanding flow path groove 76 Valve closing 10 as explained below as, max-flow quantitative change during standard-sized sheet is more.

I.e., the curve chart of the expression discharge characteristic of such as Figure 11 is shown in solid, in the open and close valve 10 of the present invention, (1) Part represents state of the plunger 44 for standard-sized sheet.Also, part (2) represents and does not apply sufficient differential pressure and what main valve 12 did not rose State.

In addition, the part of (3) represents the state being applied with after the sufficient differential pressure, uphill process of main valve 12, due to section Stream runner 78 has played restriction effect, therefore compares the increasing for understanding flow with existing guide electromagnetic valve 100 (single dotted broken line) Plus rate is little.

Also, part (4) represents the state for comparing (3), the further up state of main valve 12, the lower end of main valve 12 leads to Expanding flow path groove 76 is crossed, is disappeared hence with the restriction effect of throttling runner 78, be the state of flow increase suddenly.Also, (5) part represents that main valve 12 lifts off a seat completely 60, valve port 72 for standard-sized sheet state.

Additionally, in the embodiment, such as shown in Fig. 3 (A), Fig. 3 (B), the wall 80 that throttles is formed at the internal perisporium of valve body 52 The complete cycle of 52b, but it is also possible to as shown in Fig. 9 (A), Fig. 9 (B), the wall 80 that throttles is formed at the one of the internal perisporium 52b of valve body 52 Part, alternatively, it is also possible to such as Figure 10 (A), Figure 10 (B) Suo Shi, the wall 80 that throttles to separate fixed interval in the way of in valve The internal perisporium 52b of main body 52 is formed with multiple.

In this case, as shown in Fig. 9 (A)～Figure 10 (B), angular guide surfaces 82 are correspondingly formed with throttling wall 80, though It is so not shown, but angular guide surfaces 82 can not also be correspondingly formed with throttling wall 80.

(embodiment 2)

Figure 13 be represent the present invention open and close valve 10 other embodiment closed valve state with Fig. 1 identicals longitudinal direction section view Figure, Figure 14 is the longitudinal sectional view of the valve opening state of the open and close valve 10 for representing Figure 13.

The open and close valve 10 of the embodiment is the structure substantially the same with the open and close valve 10 shown in Fig. 1, for identical structure Identical reference number is marked into part and omit detail explanation.

Additionally, for convenience of description, in Figure 13, Tu14Zhong, the parts such as solenoid 18, magnetic frame 24 are omitted and carrys out table Show.

In embodiment 1, the electromagnetism of the pilot-operated type for being applied to possess pilot valve 66 by the open and close valve 10 of the present invention is illustrated The embodiment of valve, but as shown in Figure 13, Figure 14, the open and close valve 10 for representing the embodiment is applied to the reality of so-called direct-acting electromagnetic valve Apply example.

I.e., it is the electromagnetic valve of following manner：It is not provided with the portions such as pilot valve 66, main valve 12, first guiding path 62, guide's valve seat 64 Part, but utilize the valve element 88 of the lower end for being arranged on plunger 44 to be directly opened and closed valve port 72.

Even if in the open and close valve 10 of the embodiment, also identically with the open and close valve 10 of embodiment 1, using the teaching of the invention it is possible to provide Yi Zhongkai Valve closing 10, it can obtain the restriction effect of throttling runner 78, will not produce surge, pipe arrangement, open and close valve 10 itself, Yi Jipei The life-span of other devices in pipe arrangement is elongated, and will not produce the abnormal sounds such as impulsive sound, noise.

In this case, identically with the embodiment shown in Fig. 6, the void of the such as figure of the valve opening state of Figure 14 of angular guide surfaces 82 Shown in line, it is desirable to be formed as angular guide surfaces 82 the side of valve port 72 extended line L in the state of valve opening (standard-sized sheet), by than Lower end is provided with the lower end 44b of the riveting portion of the plunger 44 of valve element 88 (i.e., in plunger 44 and valve element 88, to the lateral lead of valve port 72 The most prominent part in vertical direction lower section) more on the lower (side of valve port 72).

In addition, identically with the embodiment shown in Fig. 6, the dotted line institute of the such as figure of the valve opening state of Figure 14 of angular guide surfaces 82 Show, it is desirable to be formed as scope M that the extended line L of the side of valve port 72 of angular guide surfaces 82 passes through valve port 72.

Also, the embodiment shown in Figure 16 as be described hereinafter is such, it is desirable to be formed as the side of valve port 72 of angular guide surfaces 82 Extended line L does not intersect with the periphery wall 60a of valve seat 60.

(embodiment 3)

Figure 15 be represent the present invention open and close valve 10 other embodiment closed valve state with Fig. 1 identicals longitudinal direction section view Figure, Figure 16 is the longitudinal sectional view of the valve opening state of the open and close valve 10 for representing Figure 15.

In embodiment 1, illustrate and the open and close valve 10 of the present invention is applied to pilot valve 66 and configures identical with main valve 12 The embodiment of the guide electromagnetic valve on axis, but as shown in Figure 15, Figure 16, the open and close valve 10 for representing the embodiment is applied to elder generation Pilot valve 66 and main valve 12 are configured in the embodiment of the guide electromagnetic valve on mutually orthogonal axis.

Additionally, in the open and close valve 10 of the embodiment, guide's valve seat member 58 is not provided with, but in the guide of plunger 44 Pilot valve 66 is directly fixed in the end of the side of valve seat 64.

In addition, valve body 52 is formed with can be in axle on the orthogonal axis Y of the axis X of the valve chamber 56 with valve body 52 The mode moved in line Y-direction accommodates the main valve chamber 90 of main valve 12.

Also, the main valve chamber 90 is configured to be connected via the access 92 being formed inside valve body 52 with valve chamber 56.

Additionally, the action of the open and close valve 10 with regard to the embodiment, only pilot valve 66 and main valve 12 be configured in it is mutually orthogonal Structure on axis is different, and its operating principle is identical with the open and close valve 10 of above-described embodiment 1, therefore the description thereof will be omitted.

In this case, as shown in figure 16, it is desirable to be formed as angular guide surfaces 82 the side of valve port 72 extended line L not with valve seat 60 periphery wall 60a intersects.

It is not outer with valve seat 60 due to being formed as the extended line L of the side of valve port 72 of angular guide surfaces 82 by so composition Perisporium 60a intersects, therefore leads to main valve via expanding flow path groove 76, throttling runner 78 from as an on high-tension side side runner 68 The flowing of 12 lower end is being inclined by be hindered by the periphery wall 60a of valve seat 60 when guide surface 82 is guided.

Thus, the flowing of the lower end 12b that should lead to main valve 12 is easily flowed directly in valve port 72, and flow during valve opening enters one Step becomes big.

In addition, in this case, identically with the embodiment shown in Fig. 6, angular guide surfaces 82 can also be formed as inclination and draw The lower end 12b of main valves 12 of the extended line L of the side of valve port 72 of guide face 82 in the state of valve opening (standard-sized sheet), by being used for valve element (i.e., to the most prominent part in the lateral vertical of valve port 72 lower section of main valve 12) more on the lower (side of valve port 72).

In addition, identically with the embodiment shown in Fig. 6, angular guide surfaces 82 can also be formed as the valve of angular guide surfaces 82 Scope M that the extended line L of 72 sides of mouth passes through valve port 72.

More than, the preferred embodiment of the present invention is illustrated, but the present invention is not limited to this, for example, upper In stating embodiment, the electromagnetic valve as following open and close valve is illustrated, i.e., by the energization to solenoid 18, non-through The switching of electricity makes valve port 72 using the energization to solenoid 18 in spacious being operated so that valve element is opened and closed action Open state, but it is also possible to be applied to following open and close valve, i.e., be not, by being powered to solenoid 18, but for example, by air Pressure etc. makes valve element move up and down and make valve element be opened and closed the open and close valve of action.

Also, the open and close valve of the present invention is in addition to the structure for blocking flow completely under closed valve state, additionally it is possible to apply In throttling runner (groove) open and close valve etc. is formed with closed valve state, can carry out respectively in the scope without departing from the purpose of the present invention Plant change.

Industrial applicability

The present invention can be applied to for example for the institute such as refrigerant circulation loop of the air conditioner of air-conditioning, refrigeration plant etc. The open and close valve that the runner for using is opened and closed.

Claims

1. a kind of open and close valve, is configured to valve element and moves to the direction for leaving the valve seat for being formed at valve body, so as to open wide located at upper The valve port of valve seat is stated, above-mentioned open and close valve is characterised by,

The position of end of the valve port side than valve element during valve closing is located at the corner part of the valve port side of above-mentioned expanding flow path groove more Formed by the mode of valve opening position,

It is configured to, in the internal perisporium of above-mentioned valve body, and in the valve port side of above-mentioned expanding flow path groove, from valve closing up to valve opening midway It is formed with throttling runner.

2. open and close valve according to claim 1, it is characterised in that

In the internal perisporium of above-mentioned valve body, and throttling wall is formed with the valve port side of above-mentioned expanding flow path groove so that from valve closing Throttling runner is formed with up to valve opening midway.

3. open and close valve according to claim 2, it is characterised in that

Above-mentioned throttling wall is formed by the wall parallel with the periphery wall of above-mentioned valve element.

4. open and close valve according to claim 2, it is characterised in that

On above-mentioned expanding flow path groove, to reach above-mentioned throttling wall in the way of form the inclined inclined lead in oriented valve port side Face.

5. the open and close valve according to Claims 2 or 3, it is characterised in that

Above-mentioned throttling wall is formed at the complete cycle of the internal perisporium of valve body.

6. the open and close valve according to any one of claim 2～4, it is characterised in that

Above-mentioned throttling wall is formed at a part for the internal perisporium of valve body.

7. the open and close valve according to any one of claim 2～4, it is characterised in that

Above-mentioned throttling wall to separate fixed interval in the way of be formed with the internal perisporium of valve body it is multiple.

8. open and close valve according to claim 4, it is characterised in that

Above-mentioned angular guide surfaces are correspondingly formed with above-mentioned throttling wall.

9. the open and close valve according to any one of Claims 1 to 4, it is characterised in that

The end difference of undergauge is formed with the periphery wall of above-mentioned valve element.

10. the open and close valve according to any one of Claims 1 to 4,8, it is characterised in that

It is possess main valve that above-mentioned valve element is opened and closed to the valve port for being formed at above-mentioned valve seat and the first conducting pair with flow passage The pilot-operated type open and close valve of the pilot valve that road is opened and closed.

11. open and close valves according to claim 10, it is characterised in that

Helical spring is provided with compressive state between above-mentioned main valve and valve body, to above-mentioned main valve to leaving located at valve body Valve seat direction reinforcing, also,

12. open and close valves according to any one of Claims 1 to 4,8, it is characterised in that

The plunger moved by the energization of solenoid；

It is configured to, by being powered to above-mentioned solenoid, to attractor side shifting, valve element is formed at valve body to leaving to plunger The direction movement of valve seat, so as to open wide the valve port for being formed at above-mentioned valve seat.