CN103322273B - Bidirectional electromagnetic valve - Google Patents
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- CN103322273B CN103322273B CN201210077156.0A CN201210077156A CN103322273B CN 103322273 B CN103322273 B CN 103322273B CN 201210077156 A CN201210077156 A CN 201210077156A CN 103322273 B CN103322273 B CN 103322273B
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Abstract
The invention discloses a bidirectional electromagnetic valve which comprises a valve seat (1), wherein the valve seat (1) is provided with a main valve port (11) and a valve cavity; a piston (2) is arranged in the valve cavity, and divides the valve cavity into an upper cavity (12) and a lower cavity (13); a pilot valve port (21) is formed in the upper end part of the piston (2); a circulation clearance (14) is formed between the circumferential side wall of the piston (2) and the corresponding inner wall of the valve cavity; a first branch circuit, a second branch circuit and a third branch circuit are arranged on the piston (2); the first branch circuit can be in one-way conducting with one end of a horizontal connecting pipe (31) from the upper cavity (12); the second branch circuit can be in one-way conducting with one end of a vertical connecting pipe (32) from the upper cavity (12); the third branch circuit can be in one-way conducting with the upper cavity (12) from one end of the vertical connecting pipe (32). Through the adoption of the structural design, the bidirectional electromagnetic valve has the advantages that the quantity of components can be reduced remarkably; the assembly technique can be simplified; the manufacturing cost can be reduced.
Description
Technical field
The present invention relates to Solenoid Valve Technology field, particularly to a kind of bidirectional electromagnetic valve.
Background technology
General electromagnetic valve, due to the restriction of structure, can only one-way flow, cut-off.Within air-conditioning systems, particularly heat pump system
In system, the flow direction when freezing, heating for the coolant is contrary, thus general single-pass electromagnetic valve needs to use cooperatively with check valve.So
And, bidirectional electromagnetic valve can realize two-way admittance, cut-off, thus without cooperation check valve, directly can make in system pipeline
With, thus there is more obvious cost advantage.
In the prior art, Japan Patent " Unexamined Patent 6-101780 " discloses a kind of bidirectional electromagnetic valve, specifically refer to
Fig. 1 and Fig. 2, Fig. 1 are a kind of structural representation of bidirectional electromagnetic valve in prior art；Fig. 2 is first of bidirectional electromagnetic valve in Fig. 1
Non-return valve and the structural representation of the second non-return valve；Fig. 3 is that in Fig. 1, the piston of bidirectional electromagnetic valve, the first non-return valve and second are inverse
The partial structural diagram that only valve is constituted.
The work process of the bidirectional electromagnetic valve in the prior art is as follows：
Positive closure state：As shown in figures 1 and 3, when the coil 4 ' 4 of electromagnetic valve is not powered on, when high pressure is led in horizontal adapter 3 ' 2
During coolant, the balance pipe 2 ' 3 through piston 2 ' for the high pressure refrigerant enters internal piston, and high pressure refrigerant is opened close by the first non-return valve 5 ' 1
First pilot valve mouth 2 ' 1 of envelope, enters the epicoele 1 ' 2 of the valve seat 1 ' of piston 2 ' top, and high pressure refrigerant is filled with whole epicoele 1 ' 2；
Now, because the second non-return valve 5 ' 2 is in the presence of epicoele 1 ' 2 mesohigh coolant, seal the second pilot valve mouth 2 ' 2, thus epicoele
It is high-pressure side in 1 ' 2；Now, because the lifting surface area of piston 2 ' in epicoele 1 ' 2 is more than piston 2 ' in the cavity of resorption 1 ' 3 of valve seat 1 '
Lifting surface area, and because vertical joint pipe 3 ' 1 one end is low-pressure end, thus in the presence of pressure differential, piston 2 ' closes valve seat 1 '
Primary valve 1 ' 1, closed electromagnetic valve.
Positive opening：As shown in figures 1 and 3, when electromagnetic valve coil 4 ' 4 is energized, the dynamic iron core 4 ' in sleeve pipe 4 ' 1
2 move in the presence of electromagnetic valve power upwards, and with static iron core 4 ' 3 adhesive, dynamic iron core 4 ' 2 is moved after one section of idle stroke upwards,
Drive support 5 ' move upwards, support 5 ' so drive the second non-return valve 5 ' 2 open the second pilot valve mouth 2 ' 2；Now, high pressure
Coolant passes through the second pilot valve mouth 2 ' 2, and then washes nonreturn valve core 2 ' 4 open, enters vertical joint pipe 3 ' 1 one end, due to flat on piston 2 '
The circulation area in weighing apparatus hole 2 ' 3 is less than the circulation area of the second pilot valve mouth 2 ' 2, thus the pressure drop in epicoele 1 ' 2, form low pressure
End, is now high-pressure side in cavity of resorption 1 ' 3, in the presence of pressure differential, piston 2 ' moves upwards, opens primary valve 1 ' 1, electromagnetic valve
Open.
Reverse closure state：When coil 4 ' 4 is not powered on, as shown in figures 1 and 3, when high pressure refrigerant is led in horizontal adapter 3 ' 2
When, the aperture that high pressure refrigerant is passed through on the internal nonreturn valve core 2 ' 4 of piston 2 ' enters the second pilot valve mouth 2 ' 2, and opens by second
Second pilot valve mouth 2 ' 2 of non-return valve 5 ' 2 sealing, enters epicoele 1 ' 2, and now high pressure refrigerant is filled with whole epicoele 1 ' 2, and due to
First non-return valve 5 ' 1 closes the first pilot valve mouth 2 ' 1 in the presence of epicoele 1 ' 2 mesohigh coolant, thus epicoele 1 ' 2 forms high pressure
End；Now, epicoele 1 ' 2 and vertical joint pipe 3 ' 1 one end are high-pressure side, but because the lifting surface area of piston 2 ' in epicoele 1 ' 2 is big
In the lifting surface area of piston 2 ' determined by vertical joint pipe 3 ' 1 one end primary valve 1 ' 1, and due to cavity of resorption 1 ' 3 and horizontal adapter 3 ' 2 one end
For low-pressure end, thus in the presence of pressure differential, piston 2 ' closes primary valve 1 ' 1, closed electromagnetic valve.
Reverse opening：When coil 4 ' 4 is energized, as shown in figures 1 and 3, dynamic iron core 4 ' 2 is in the effect of electromagnetic valve power
Under move upwards, and static iron core 4 ' 32 adhesive, dynamic core iron 4 ' 2 moves after one section of idle stroke upwards, drives support 5 ' upwards
Motion, support 5 ' and then drive the first non-return valve 5 ' 1 to open the first pilot valve mouth 2 ' 1, the high pressure refrigerant in epicoele 1 ' 2 is through first
Pilot valve mouth 2 ' 1 and balance pipe 2 ' 3, flow into horizontal adapter 3 ' 2 one end；Now, due to the circulation area of the aperture on nonreturn valve core 2 ' 4
Less than the circulation area of balance pipe 2 ' 3, thus the pressure drop in epicoele 1 ' 2, form low-pressure end, now vertical joint pipe 3 ' 1 one end
It is still high-pressure side, in the presence of pressure differential, piston 2 ' moves upwards, open primary valve 1 ' 1, electromagnetic valve is opened.
However, above-mentioned electromagnetic valve of the prior art has as a drawback that：
First, in order to realize electromagnetic valve bidirectional open or closing, piston 2 ' is provided with two pilot valve mouths：First pilot valve mouth 2 '
1 and the second pilot valve mouth 2 ' 2, correspondingly, it is provided with two non-return valves in support 5 '：First non-return valve 5 ' 1 and the second non-return valve 5 '
2, thus result in that parts are more, structure is complex；
Second, in order to ensure that two non-return valves are coordinated with corresponding pilot valve mouth respectively, need to prevent support 5 ' along week
To rotation；In consideration of it, as shown in Fig. 2 needing two locating rods 5 ' 3 to be provided with support 5 ', simultaneously accordingly in piston
It is provided with two location holes with locating rod 5 ' 3 cooperation, thus preventing support 5 ' from rotating.But this kind of structure design is not
Only result in parts more, and difficulty of processing is big, assembly technology is complicated, manufacturing cost is higher；
3rd, from above-mentioned two point defects, the electromagnetic valve parts in the prior art are more, and assembly technology is complicated,
Assembly difficulty is big, and the reliability thus resulting in work is relatively poor.
Content of the invention
The technical problem to be solved in the present invention is for providing a kind of bidirectional electromagnetic valve, structure design one side of this bidirectional electromagnetic valve
Face can substantially reduce the quantity of parts, simplifies assembly technology, reduces manufacturing cost, and that on the other hand can improve work can
By property.
For solving above-mentioned technical problem, the present invention provides a kind of bidirectional electromagnetic valve, including the valve being provided with primary valve and valve pocket
Seat, is provided with the piston with the cooperation of described primary valve in described valve pocket, it is epicoele and cavity of resorption that described piston separates described valve pocket, and institute
The upper end stating piston is provided with the pilot valve mouth being turned on and off by pilot valve components；Described bidirectional electromagnetic valve also includes and described cavity of resorption
The horizontal adapter of connection and the vertical joint pipe being connected with cavity of resorption by described primary valve；The circumferential side wall of described piston with corresponding
Between the inwall of described valve pocket, there are passage gaps；Described piston is provided with and is all connected with described pilot valve mouth and can be by described epicoele
To described horizontal adapter one end one-way conduction tie point and can be from described epicoele to the of described vertical joint pipe one end one-way conduction
Two branch roads；Being additionally provided with described piston can be from described vertical joint pipe one end to the 3rd branch road of described epicoele one-way conduction；Described lead
Valve port and circulation area determined by described second branch road are more than the circulation area of described passage gaps, described pilot valve mouth and described
Circulation area determined by tie point is more than the circulation area of described 3rd branch road；
The inwall of described valve seat is provided with valve seat guide section, and the outer circumferential walls of described piston are provided with and described valve seat guiding
The piston guide section of Duan Peihe；The lower section of described piston guide section offers the pipeline construction section that external diameter diminishes, described first
Road includes radial line, and described radial line is opened on described pipeline construction section；The bottom of described valve seat guide section is further
Offer annular groove, and when described piston opens described primary valve, described radial line is generally in described annular groove institute
Just to scope in.
Preferably, described bidirectional electromagnetic valve also includes flexible member, described piston guide section and described pipeline construction section it
Between be formed with step；Described flexible member is placed on the circumferentially external of the bottom of described piston, and flexibly support in described step with
Between the inner bottom wall of described valve seat.
Preferably, it is provided with radial sealing surfaces and the radial seal body with the cooperation of this radial sealing surfaces in this radial line；Institute
State be additionally provided with radial line so that described radial seal body along described piston the guide holder moving radially, and on this guide holder
It is communicated with the guide holder passage of described horizontal adapter one end and described radial line.
Preferably, described radial line includes the first radial hole and aperture becomes the second big radial hole, described radial seal
Face is formed on the step between described first radial hole and described second radial hole；Described guide holder is located at described second radially
Kong Zhong, and radial seal body moving radially along described piston described in guide support, to seal or to depart from described radial seal
Face.
Preferably, described guide holder is provided with the cylinder of opening for one end, and described radial seal body is located at the cylinder of described cylinder
In inner chamber, described cylinder with its opening just to described radial sealing surfaces so that described radial seal body is turned on and off described footpath
To sealing surface；Described guide holder passage is in the circumferential side wall be opened in described cylinder and to connect described tube inner chamber and described second
The cylinder breach of radial hole.
Preferably, described cylinder breach further extends to the sealed bottom end of described cylinder, so that the bottom of this cylinder is close
Between end-blocking and the inwall of described second radial hole, there is conducting gap.
Preferably, described piston offers the pilot passage connecting with described pilot valve mouth, described pilot valve vertically further
Mouthful by described pilot passage respectively with described tie point and described second branch road one-way conduction.
Preferably, described second branch road includes the axial cavity connecting with described pilot passage, this axial cavity with described
It is provided with the first axial sealing surface between pilot passage, in described axial cavity, be provided with the first axle of this first axial sealing surface of sealing
To seal；Described axial cavity is provided with the first axial stop component away from one end of the described first axial sealing surface, and this
One axial retention part is communicated with the first axially extending bore of described axial cavity and described vertical joint pipe one end.
Preferably, the described first axial seal is nonreturn valve core, and described nonreturn valve core is provided with the valve element footpath being interconnected
To hole and valve element axial hole, described valve element radial hole is connected with described axial cavity, described valve element axial hole and described first axle
To through hole connection.
Preferably, described 3rd branch road includes the second axial hole connecting with described vertical joint pipe one end, and this second axial direction
The other end in hole is communicated with the 3rd axial hole that aperture becomes big；It is provided with second axially close between second axial hole and the 3rd axial hole
It is provided with the second axial seal body sealing this second axial seal face in front cover, and the 3rd axial hole；Described 3rd axial hole is remote
It is provided with the second axial retention part from the one end in described second axial seal face, and this second axial retention part is communicated with
Three axial hole and the second axially extending bore of described epicoele.
On the basis of existing technology, the circumferential side wall of the piston of bidirectional electromagnetic valve provided by the present invention with corresponding
Between the inwall of described valve pocket, there are passage gaps；Described piston is provided with and is all connected with described pilot valve mouth and can be by described epicoele
To described horizontal adapter one end one-way conduction tie point and can be from described epicoele to the of described vertical joint pipe one end one-way conduction
Two branch roads；Being additionally provided with described piston can be from described vertical joint pipe one end to the 3rd branch road of described epicoele one-way conduction；Described lead
Valve port and circulation area determined by described second branch road are more than the circulation area of described passage gaps, described pilot valve mouth and described
Circulation area determined by tie point is more than the circulation area of described 3rd branch road.
When the coil of bidirectional electromagnetic valve is not powered on, when high pressure refrigerant enters the cavity of resorption of valve pocket by horizontal adapter, tie point
Closing, coolant passes through described passage gaps and enters the epicoele being located above piston, in the presence of high pressure refrigerant and gravity, pilot valve
Part closes pilot valve mouth, now because epicoele and cavity of resorption are high-pressure side, and under being more than due to the lifting surface area of piston in epicoele
The lifting surface area of piston in chamber, and because vertical joint pipe one end is low-pressure end, thus piston moves downward in the presence of pressure differential,
Close primary valve.When the coil electricity of bidirectional electromagnetic valve, under the influence of a magnetic field, pilot valve components open pilot valve mouth, upper intracavity
High pressure refrigerant pass through vertical joint pipe one end that pilot valve mouth and the second branch road flow into low pressure, because pilot valve mouth and the second branch road are determined
Circulation area be more than the circulation area of described passage gaps, thus the pressure drop in epicoele, form low-pressure end, and cavity of resorption be
High-pressure side, piston moves in the presence of the pressure differential of cavity of resorption and epicoele upwards, opens primary valve, and electromagnetic valve is opened.Coil breaks
When electric, magnetic field disappears, and pilot valve components reset thus closing pilot valve mouth, and now the coolant in epicoele no longer passes through pilot valve mouth and second
Branch road flows to vertical joint pipe one end, thus the pressure in epicoele rises, until equal with the pressure of the high pressure refrigerant of horizontal adapter one end；
Now, piston upper chamber and cavity of resorption are high-pressure side, but in epicoele, the lifting surface area of piston is more than the stress surface of piston in cavity of resorption
Long-pending, and because vertical joint pipe one end is low-pressure end, thus in the presence of pressure differential, piston moves downward, and closes primary valve, electromagnetism
Valve cuts out.
When the coil of bidirectional electromagnetic valve is not powered on, when high pressure refrigerant is entered fashionable, the second branch road closing by vertical joint pipe one end, high
Pressure coolant passes through the 3rd branch road and enters epicoele, and now pilot valve components close pilot valve mouth in the presence of high pressure refrigerant and gravity, on
Chamber and vertical joint pipe one end are high-pressure side, but because the lifting surface area of piston in epicoele is more than vertical joint pipe one end primary valve institute really
The lifting surface area of fixed piston, and because horizontal adapter one end and cavity of resorption are low-pressure end, thus in the presence of pressure differential, piston closes
Close primary valve, closed electromagnetic valve.When described coil electricity, under the influence of a magnetic field, pilot valve components open pilot valve mouth, in epicoele
High pressure refrigerant flow to horizontal adapter one end of low pressure by pilot valve mouth and tie point, because pilot valve mouth and tie point are determined
Circulation area be more than the circulation area of the 3rd branch road, thus the pressure drop in epicoele, referred to as low-pressure end, now in pressure differential
In the presence of, piston upwards, open primary valve, electromagnetic valve is opened.When the coil is de-energized, magnetic field disappears, and pilot valve components are multiple
Thus closing pilot valve mouth, now the high pressure refrigerant in epicoele can not flow to the horizontal of low pressure by pilot valve mouth and tie point again and connect for position
Pipe one end, thus pressure rises, and forms the high-pressure side equal with vertical joint pipe one end, but the lifting surface area due to piston in epicoele
More than the lifting surface area of piston determined by the primary valve of vertical joint pipe one end, and because horizontal adapter one end and cavity of resorption are low-pressure end, because
And in the presence of pressure differential, piston closes primary valve, closed electromagnetic valve.
With respect to the structure design of two pilot valve mouths of prior art and two non-return valves, only the setting of bidirectional electromagnetic valve of the present invention
There are a pilot valve mouth and pilot valve components, thus decrease the quantity of parts, simplify assembly technology；Further, since the present invention
Not using the structure design of two non-return valves, thus also just eliminate the structure of support, and then also eliminate in support
Setting prevents the structure of two locating rods of its rotation, correspondingly, piston also just eliminates the structure of two location holes, thus
Not only reduce the quantity of parts, and reduce difficulty of processing and assembly difficulty；Bidirectional electromagnetic valve due to the present invention
Parts are less, and the difficulty of assembly technology reduces, thus the reliability of its work is correspondingly improved.In sum, this
Bright provided bidirectional electromagnetic valve one side can substantially reduce the quantity of parts, simplifies assembly technology, reduces manufacturing cost,
On the other hand the reliability of work can be improved.Furthermore, it is necessary to it is emphasized that described tie point includes radial line, this footpath
It is provided with radial sealing surfaces and the radial seal body with the cooperation of this radial sealing surfaces into pipeline；Being additionally provided with described radial line makes
Obtain described radial seal body along the guide holder moving radially of described piston, and described horizontal adapter one is communicated with this guide holder
End and the guide holder passage of described radial line.
During work, in tie point, when radial seal body open radial sealing surfaces when, by guide holder passage so that
Epicoele passes through radial line and horizontal adapter one end one-way conduction, and when radial seal body closes radial sealing surfaces, tie point is closed
Close.In said structure, because guide holder carries out radially-directed support to radial direction seal so as to the radial direction along piston is moved
Move it is thus possible to avoid radial seal body to offset downward in the effect of gravity, and then avoid radial seal body to radial seal
The appearance of the not tight situation of face seal, improves sealing property, the generation of prevent leakage, thus improve the overall energy of refrigeration plant
Effect.
Brief description
Fig. 1 is a kind of structural representation of bidirectional electromagnetic valve in prior art；
Fig. 2 is the first non-return valve of bidirectional electromagnetic valve and the structural representation of the second non-return valve in Fig. 1；
Fig. 3 is that the partial structurtes that in Fig. 1, the piston of bidirectional electromagnetic valve, the first non-return valve and the second non-return valve are constituted are illustrated
Figure；
Fig. 4 is the structural representation of bidirectional electromagnetic valve in an embodiment of the present invention；
Fig. 5 is the structural representation of the piston of bidirectional electromagnetic valve in Fig. 4；
Fig. 6 is the main plan view of piston in Fig. 5；
Fig. 7 is the structural representation of the cylinder of piston in Fig. 5；
Fig. 8 is the structural representation of bidirectional electromagnetic valve in present invention another kind embodiment.
Wherein, in Fig. 1 to Fig. 3, the corresponding relation between reference and component names is：
1 ' valve seat；1 ' 1 primary valve；1 ' 2 epicoele；1 ' 3 cavity of resorption；
2 ' pistons；2 ' 1 first pilot valve mouths；2 ' 2 second pilot valve mouths；2 ' 3 balance pipes；2 ' 4 nonreturn valve cores；
3 ' 2 horizontal adapters；3 ' 1 vertical joint pipes；
4 ' 1 sleeve pipes；4 ' 2 dynamic iron cores；4 ' 3 static iron cores；4 ' 4 coils；
5 ' supports；5 ' 1 first non-return valves；5 ' 2 second non-return valves；5 ' 3 locating rods.
In Fig. 4 to Fig. 8, the corresponding relation between reference and component names is：
1 valve seat；11 primary valves；12 epicoeles；13 cavity of resorptions；14 passage gaps；15 valve seat guide sections；16 annular grooves；
2 pistons；21 pilot valve mouths；22 pilot passage；26 caulking parts；27 piston guide sections；28 pipeline construction sections；29 steps；
231 first radial holes；232 second radial holes；233 radial sealing surfaces；234 radial seal bodies；235 cylinders；235a
Tube inner chamber；235b cylinder breach；235c passage gaps；
241 axial cavity；242 first axial sealing surfaces；243 first axial stop components；243a first axially extending bore；
244 nonreturn valve cores；244a valve element radial hole；244b valve element axial hole；245 first axial hole；
251 inclined holes；252 second axial hole；253 the 3rd axial hole；254 second axial seal faces；255 second axial seals
Body；256 second axial retention parts；256a second axially extending bore；
31 horizontal adapters；32 vertical joint pipes；
41 sleeve pipes；42 dynamic iron cores；43 pilot valve seal；44 elastomeric elements；45 static iron cores；
5 flexible members.
Specific embodiment
, for providing a kind of bidirectional electromagnetic valve, the structure design one side of this bidirectional electromagnetic valve can be notable for the core of the present invention
Reduce the quantity of parts, simplify assembly technology, reduce manufacturing cost, on the other hand can improve the reliability of work.
In order that those skilled in the art more fully understands technical scheme, below in conjunction with the accompanying drawings and specifically real
The present invention is described in further detail to apply example.
Refer to Fig. 4, Fig. 5 and Fig. 6, Fig. 4 is the structural representation of bidirectional electromagnetic valve in an embodiment of the present invention；Fig. 5
Structural representation for the piston of bidirectional electromagnetic valve in Fig. 4；Fig. 6 is the main plan view of piston in Fig. 5.
In one embodiment, as shown in figure 4, bidirectional electromagnetic valve provided by the present invention, including valve seat 1, this valve seat 1 sets
There is valve pocket, be formed with primary valve 11 in valve pocket, and in valve pocket, be provided with the piston 2 turning off or on primary valve 11；As Fig. 4 institute
Show, piston 2 separates epicoele 12 and the cavity of resorption 13 being located at piston 2 lower section that valve pocket is positioned at piston 2 top, and, in epicoele 12
In, the upper end of piston 2 is provided with pilot valve mouth 21, and this pilot valve mouth 21 is turned on and off by the pilot valve components of bidirectional electromagnetic valve；As Fig. 4
Shown, described bidirectional electromagnetic valve also includes horizontal adapter 31 and vertical joint pipe 32, and horizontal adapter 31 is connected with cavity of resorption 13, vertical joint pipe 32 with main
Valve port 11 connects, and connects with cavity of resorption 13 when primary valve 11 is opened.
As shown in Figures 4 to 6, on the basis of above-mentioned prior art, the circumferential side wall of piston 2 and corresponding described valve
There are between the inwall in chamber passage gaps 14；Piston 2 is provided with the tie point all connecting and the second branch road with pilot valve mouth 21, and
And pilot valve mouth 21 open when, tie point from epicoele 12 to horizontal adapter 31 one end one-way conduction (that is, coolant can pass through this first
Prop up route epicoele 12 and flow to horizontal adapter 31 one end, and epicoele 12 can not be flowed to by horizontal adapter 31 one end), second route epicoele 12
To the guiding conducting of vertical joint pipe 32 one end, (that is, coolant can not flow to vertical joint pipe 32 one end by this second route epicoele 12, and not
Epicoele 12 can be flowed to by vertical joint pipe 32 one end)；As shown in Figure 4 and Figure 5, piston 2 being additionally provided with can by vertical joint pipe 32 one end upwards
Chamber 12 one-way conduction the 3rd branch road (that is, coolant can by the 3rd route vertical joint pipe 32 one end flow to epicoele 12, and
Vertical joint pipe 32 one end can not be flowed to by epicoele 12)；Meanwhile, pilot valve mouth 21 and circulation area determined by described second branch road are more than
The circulation area of passage gaps 14, pilot valve mouth 21 and circulation area determined by described tie point are more than described 3rd branch road
Circulation area.
When the coil 46 of bidirectional electromagnetic valve is not powered on, when high pressure refrigerant enters the cavity of resorption 13 of valve pocket by horizontal adapter 31, the
One branch road closing, coolant passes through described passage gaps 14 and enters the epicoele 12 being located at piston 2 top, in high pressure refrigerant and gravity
Under effect, pilot valve components close pilot valve mouth 21, now because epicoele 12 and cavity of resorption 13 are high-pressure side, and due to living in epicoele 12
The lifting surface area of plug 2 is more than the lifting surface area of piston 2 in cavity of resorption 13, and because vertical joint pipe 32 one end is low-pressure end, thus in pressure
In the presence of power difference, piston 2 moves downward, and closes primary valve 11.When the coil 46 of bidirectional electromagnetic valve is energized, in the work in magnetic field
With under, pilot valve components open pilot valve mouth 21, the high pressure refrigerant in epicoele 12 pass through pilot valve mouth 21 and described second branch road flow into low
Vertical joint pipe 32 one end of pressure, because pilot valve mouth 21 and circulation area determined by the second branch road are more than the circulating face of passage gaps 14
Long-pending, thus the pressure drop in epicoele 12, form low-pressure end, and cavity of resorption 13 is high-pressure side, piston is in cavity of resorption 13 and epicoele 12
Move upwards in the presence of pressure differential, open primary valve 11, electromagnetic valve is opened.During coil blackout, magnetic field disappears, and pilot valve components are multiple
Thus closing pilot valve mouth 21, now the coolant in epicoele 12 no longer flows to vertical joint pipe 32 1 by pilot valve mouth 21 and the second branch road for position
End, thus the pressure in epicoele 12 rises, until equal with the pressure of the high pressure refrigerant of horizontal adapter 31 one end；Now, on piston
Chamber 12 and cavity of resorption 13 are high-pressure side, but in epicoele 12, the lifting surface area of piston 2 is more than the stress surface of piston 2 in cavity of resorption 13
Long-pending, and because vertical joint pipe 32 one end is low-pressure end, thus in the presence of pressure differential, piston 2 moves downward, and closes primary valve
11, closed electromagnetic valve.
When the coil 46 of bidirectional electromagnetic valve is not powered on, when high pressure refrigerant is entered fashionable, the second branch road pass by vertical joint pipe 32 one end
Close, high pressure refrigerant is passed through the 3rd branch road and entered epicoele 12, and now pilot valve components are closed in the presence of high pressure refrigerant and gravity and led
Valve port 21, epicoele 12 and vertical joint pipe 32 one end are high-pressure side, but because the lifting surface area of piston 2 in epicoele 12 is more than vertical joint
The lifting surface area of piston 2 determined by pipe 32 one end primary valve 11, and because horizontal adapter 31 one end and cavity of resorption 13 are low-pressure end, because
And in the presence of pressure differential, piston 2 closes primary valve 11, closed electromagnetic valve.When coil 46 is energized, in the effect in magnetic field
Under, pilot valve components open pilot valve mouth 21, and the high pressure refrigerant in epicoele 12 flows to the horizontal stroke of low pressure by pilot valve mouth 21 and tie point
Adapter 31 one end, because circulation area determined by pilot valve mouth 21 and tie point is more than the circulation area of the 3rd branch road, thus
Pressure drop in epicoele 12, forms low-pressure end, now in the presence of pressure differential, piston 2 moves upwards, opens primary valve
11, electromagnetic valve is opened.When coil 46 power-off, magnetic field disappears, and pilot valve components reset thus closing pilot valve mouth 21, now epicoele 12
In high pressure refrigerant can not flow to horizontal adapter 31 one end of low pressure again by pilot valve mouth 21 and tie point, thus pressure rises,
Form the high-pressure side equal with vertical joint pipe 32 one end, but because the lifting surface area of piston in epicoele 12 is more than vertical joint pipe 32 one end
The lifting surface area of piston 2 determined by primary valve 11, and because horizontal adapter 31 one end and cavity of resorption 13 are low-pressure end, thus in pressure
In the presence of difference, piston 2 closes primary valve 11, closed electromagnetic valve.
With respect to the structure design of two pilot valve mouths of prior art and two non-return valves, only the setting of bidirectional electromagnetic valve of the present invention
There are a pilot valve mouth 21 and pilot valve components, thus decrease the quantity of parts, simplify assembly technology；Further, since this
The bright structure design not having using two non-return valves, thus also just eliminate the structure of support, and then also eliminate in support
Body setting prevents the structure of two locating rods of its rotation, correspondingly, piston also just eliminates the structure of two location holes, because
And not only reduce the quantity of parts, and reduce difficulty of processing and assembly difficulty；Bidirectional electromagnetic valve due to the present invention
Parts less, the difficulty of assembly technology reduces, thus the reliability of its work is correspondingly improved.
In sum, bidirectional electromagnetic valve one side provided by the present invention can substantially reduce the quantity of parts, simplifies
Assembly technology, reduces manufacturing cost, on the other hand can improve the reliability of work.
Additionally, as shown in Figure 5 and Figure 6 it is to be emphasized that tie point includes radial line, this radial line
Inside it is provided with radial sealing surfaces 233 and the radial seal body 234 with the cooperation of this radial sealing surfaces 233；Being additionally provided with radial line makes
Obtain radial seal body 234 along the guide holder moving radially of piston 2, and horizontal adapter 31 one end and footpath are communicated with this guide holder
Guide holder passage to pipeline.
During work, in tie point, when radial seal body 234 opens radial sealing surfaces 233, led to by guide holder
Road is so that epicoele 12 is by radial line and horizontal adapter 31 one end one-way conduction, when radial seal body 234 closes radial sealing surfaces
When 233, tie point is closed.In said structure, because guide holder carries out radially-directed support to radial direction seal 234, make
Its moving radially it is thus possible to avoid radial seal body 234 to offset downward in the effect of gravity along piston 2, and then avoid
The appearance to the poorly sealed situation of radial sealing surfaces 233 for the radial seal body 234, improves sealing property, the sending out of prevent leakage
Raw, thus improve the overall efficiency of refrigeration plant.
In the above-described embodiments, specific design can be made to pilot valve components.As shown in figure 4, pilot valve components include sleeve pipe
41st, dynamic iron core 42, pilot valve seal 43, elastomeric element 44, static iron core 45；Sleeve pipe 41 is connected on valve seat 1, and the one of dynamic iron core 42
End is provided with the pilot valve seal 43 being turned on and off pilot valve mouth, and its other end is connected with static iron core 45 by elastomeric element 44, set
The outside of pipe 41 is provided with coil.When the coil is energized, under the influence of a magnetic field, dynamic iron core 42 overcomes the elastic force of elastomeric element 44,
To static iron core 45 1 end motion, thus driving pilot valve seal 43 to open pilot valve mouth 21；When the coil is de-energized, magnetic field disappears, this
When in the presence of the elastic force of elastomeric element 44, dynamic iron core 42 resets, so drive pilot valve seal 43 close pilot valve mouth 21.
In the above-described embodiments, connect with described tie point and described second branch road for the ease of pilot valve mouth 21, piston 2
On can be provided with the pilot passage 22 connecting with pilot valve mouth 21 axially further, pilot valve mouth 21 passes through this pilot passage 22 respectively
Connect with described tie point and described second branch road.
Specifically, in technique scheme, specific design can also be made to the radial line of tie point.As Fig. 5
With shown in Fig. 6, radial line includes the first radial hole 231 and aperture becomes the second big radial hole 232, radial sealing surfaces 233 shape
Become on the step between the first radial hole 231 and the second radial hole 232；Guide holder is in the second radial hole 232, and guides
Support radial seal body 234 moving radially along piston 2, to seal or to depart from radial sealing surfaces 233.In this kind of structure,
Step between the second big radial hole 232 is become by the first radial hole 231 and aperture, can easily design radial sealing surfaces
233, structure is also fairly simple simultaneously, and processing cost is relatively low.
It should be noted that any one guide seat structure, as long as radially-directed can be carried out to radial direction seal 234, with
When radial seal body 234 open radial sealing surfaces 233 when, guide holder channel conductive radial line can be passed through, just all should
Within protection scope of the present invention.
Certainly, as a kind of citing, can with a kind of guide seat structure of specific design, such as please also refer to Fig. 5, Fig. 6 and
Fig. 7, guide holder is provided with the cylinder 235 of opening for one end, radial seal body 234 in the tube inner chamber 235a of cylinder 235, cylinder
235 with its opening just to radial sealing surfaces 233 so that radial seal body 234 is turned on and off radial sealing surfaces 233；Guide holder
Passage is in the circumferential side wall be opened in cylinder 235 and to connect the cylinder breach 235b of tube inner chamber 235a and the second radial hole 232.
In said structure, as shown in Figure 5 and Figure 6, radial seal body 234 is put in its cylinder by the opening of cylinder 235
In the 235a of chamber, radially-directed preferably can be carried out to radial direction seal 234 by this tube inner chamber 235a.Additionally, this cylinder 235
Opening just to radial sealing surfaces 233, radial seal body 234 in tube inner chamber 235a near radial sealing surfaces 233 direction
Mobile, just this radial sealing surfaces 233 salable, move away from this radial sealing surfaces 233, just can open this radial sealing surfaces 233.
Furthermore, as shown in fig. 7, guide holder passage is in the circumferential side wall be opened in cylinder 235 and to connect tube inner chamber 235a and the second footpath
To the cylinder breach 235b in hole 232, when radial seal body 234 departs from and opens radial sealing surfaces 233, horizontal adapter one end passes through second
The valve port that radial hole 232, cylinder breach 235b, tube inner chamber 235a and radial sealing surfaces 233 surround, it is achieved thereby that radial line
Conducting, and then achieve the conducting of tie point.To sum up, the structure design one side of cylinder 235 can be to radial direction seal
234 carry out radially-directed, on the other hand can conveniently turn on radial line.
Additionally, as shown in Figures 5 to 7, cylinder breach 235b further extends to the sealed bottom end of cylinder 235, so that should
There is between the inwall of the sealed bottom end of cylinder 235 and the second radial hole 232 conducting gap 235c.Horizontal adapter one end is passed through should
Conducting gap 235c is connected with the second radial hole 232, and then connects with cylinder breach 235b.Furthermore, cylinder 235 is with its circumferential side wall
In interference fit with the second radial hole 232, the simple and reliable property of this kind of assembling structure, and cost is relatively low.
Additionally, in the above-described embodiments, specific design can also be made to the second branch road.Such as, as shown in figure 5, described
Second branch road includes the axial cavity 241 connecting with pilot passage 22, is provided between this axial cavity 241 and pilot passage 22
One axial seal face 242, is provided with the first axial seal of this first axial sealing surface 242 of sealing in axial cavity 241；Axially
Cavity 241 is provided with the first axial stop component 243 away from one end of the first axial sealing surface 242, and this first axial retainer
Part 243 is communicated with the first axially extending bore 243a of axial cavity 241 and vertical joint pipe 32 one end.
Specifically, as shown in figure 5, this first axial seal can be nonreturn valve core 244, nonreturn valve core 244 is provided with phase
Intercommunicated valve element radial hole 244a and valve element axial hole 244b, valve element radial hole 244a are connected with axial cavity 241, poppet shaft
Connect to hole 244b with the first axially extending bore 243a.During work, high pressure refrigerant enters in pilot passage 22 by pilot valve mouth 21, then
Wash the sealing to the first axial sealing surface 242 for the nonreturn valve core 244 open, enter in axial cavity 241, then high pressure refrigerant is through valve
Core radial hole 244a and valve element axial hole 244b, then entered by the first axially extending bore 243a of the first axial stop component 243
Vertical joint pipe 32 one end.
Specifically, as shown in figure 5, in order to improve the reliability that the first axial stop component 243 connects, axial cavity 241
One end away from the first axial sealing surface 242 can be connected with the first axial hole 245 that aperture becomes big, and piston 2 is provided with caulking part
26, the first axial stop component 243 is riveted in the first axial hole 245 by caulking part 26.
Furthermore, it should be noted that in the above-described embodiments, no matter the 3rd branch road of which kind of structure, can only be by erecting
Adapter 32 one end, just all should be within protection scope of the present invention to epicoele 12 one-way conduction.
Specifically, can be with specific design one kind the 3rd branch structure.Such as, as shown in figure 5, described 3rd branch road includes
Two axial hole 252 and the 3rd axial hole 253, the one end in the second axial hole 252 is connected with vertical joint pipe 32 one end, its other end and
Three axial hole 253 connect, and the aperture in the 3rd axial hole 253 is more than the aperture in the second axial hole 252；Additionally, as Fig. 5 institute
Show, be provided with the second axial seal face 254 between the second axial hole 252 and the 3rd axial hole 253, and set in the 3rd axial hole 253
There is the second axial seal body 255 sealing this second axial seal face 254, this second axial seal body 255 can be with sealed spheroid；
Furthermore, as shown in figure 5, the 3rd axial hole 253 is provided with the second axial retention part away from the one end in the second axial seal face 254
256, and this second axial retention part 256 is communicated with the second axially extending bore 256a in the 3rd axial hole 253 and epicoele 12.
Specifically, as shown in Figure 4 and Figure 5, connect with vertical joint pipe 32 one end for the ease of the second axial hole 252, piston 2 can
To be further provided with inclined hole 251, the second axial hole 252 is passed through to connect with vertical joint pipe 32 one end with inclined hole 251.
During work, as shown in Figure 4 and Figure 5, high pressure refrigerant is entered in inclined hole 251 by vertical joint pipe 32 one end, and washes second open
The sealing to the second axial seal face 254 for the axial seal body 255, enters in the second axial hole 252, and then axially stops by second
Second axially extending bore 256a of dynamic component 256 enters in epicoele 12.
Additionally, on the basis of any of the above-described kind of technical scheme, can also making and improving further.Specifically, refer to
Fig. 8, Fig. 8 are the structural representation of bidirectional electromagnetic valve in present invention another kind embodiment.
As shown in figure 8, the inwall of valve seat 1 is provided with valve seat guide section 15, the outer circumferential walls of piston 2 are provided with to be led with valve seat
Piston guide section 27 to section 15 cooperation；The lower section of piston guide section 27 offers the pipeline construction section 28 that external diameter diminishes, and first
Branch road includes radial line, and radial line is opened on pipeline construction section 28；The bottom of valve seat guide section 15 offers further
Annular groove 16, and piston open primary valve when, radial line generally in annular groove 16 just to scope in.
Specifically, " radial line generally in annular groove 16 just to scope in " concrete connotation as follows：
As shown in figure 8, when piston 2 opens primary valve 11, piston 2 moves up, correspondingly, radial line (includes the
One radial hole 231 and the second radial hole 232) also move up, this radial line the top not across annular groove 16, also
I.e. the top of this annular groove 16 is consistently higher than the top of radial line.
When piston 2 opens primary valve 11, under the promotion of coolant fluid, piston 2 can circumferentially rotate, and now, having can
The left side going in Fig. 8 of radial line, that is, the side away from horizontal adapter 31, now, the port of export of radial line can be made
The refrigerant pressure at this position can be led to increase due to narrow space, so that the radial seal body 234 in radial line can again
Secondary closing radial sealing surfaces 233, and then piston 2 is vibrated in the axial direction, produce vibrating noise, be also unfavorable for flowing simultaneously
The stability of amount.
And in the present invention, by radial line generally in annular groove 16 just to scope in, thus work as piston 2
Rotate so that radial line go to away from horizontal adapter 31 side when, due to now radial line opening still
Correspond to annular groove 16, the space at this position is sufficiently large, coolant can be easy to and flowing occurs such that it is able to avoid partial high pressure
Appearance, and then avoid radial seal body 234 can be again switched off radial sealing surfaces 233 such that it is able to prevent piston 2 from shaking
Dynamic, and ensure that the stability of flow.
Additionally, as shown in figure 8, bidirectional electromagnetic valve also includes flexible member 5, piston guide section 27 and pipeline construction section 28 it
Between be formed with step 29；Flexible member 5 is placed on the circumferentially external of the bottom of piston 2, and flexibly supports in step 29 and valve seat
Between inner bottom wall.In this kind of structure, this flexible member 5 can be with the gravity of dummy piston, in the pressure differential of epicoele and cavity of resorption
Under effect, piston 2 can relatively easily be opened, and is easily shut off such that it is able to prevent piston 2 from occurring to shake up and down further
Dynamic, and ensure that the stability of flow.
Furthermore, it is necessary to illustrate, the present invention is not restricted for the structure of pilot valve seal 43, this pilot valve seal 43
Both can be sealed spheroid as shown in Figure 4 or sealing-plug as shown in Figure 8.
Finally, it should be noted that in tie point, the first radial hole 231, radial sealing surfaces 233, radial seal body
234th, the second radial hole 232 and guide holder have effectively formed the first one-way valve structures, and this first one-way valve structures makes
Tie point one-way conduction；In the second branch road, the axial sealing surface 242 of axial cavity 241, first, nonreturn valve core 244 and first
Axial retention part 243 has effectively formed second one-way valve structures, and this second one-way valve structures makes the second branch road list
To conducting；In the 3rd branch road, the second axial hole 252, the second axial seal face 254, the second axial seal body 255, the 3rd axle
Effectively form the third one-way valve structures to hole 253 and the second axial retention part 256, this third one-way valve structures makes
Obtain the 3rd branch road one-way conduction.
Obviously, on the premise of meeting the function of one-way conduction, the first one-way valve structures above-mentioned, second check valve knot
Structure and the third one-way valve structures can be exchanged, that is, tie point can be using described second one-way valve structures or described the
Three kinds of one-way valve structures, the second branch road can adopt the first one-way valve structures described or the third one-way valve structures described, the
Three branch roads can adopt the first one-way valve structures described or described second one-way valve structures；Certainly, meeting one-way conduction
Function on the premise of, described tie point, the second branch road or the 3rd branch road can also adopt other structures check valve, should
The check valve of other structures obviously also should be within protection scope of the present invention.
Above a kind of bidirectional electromagnetic valve provided by the present invention is described in detail.Specific case used herein
The principle and embodiment of the present invention is set forth, the explanation of above example is only intended to help understand the side of the present invention
Method and its core concept.It should be pointed out that for those skilled in the art, without departing from the principle of the invention
Under the premise of, the present invention can also be carried out with some improvement and modify, these improve and modify and also fall into the claims in the present invention
In protection domain.
Claims (12)
1. a kind of bidirectional electromagnetic valve, including being provided with primary valve（11）Valve seat with valve pocket（1）, it is provided with described valve pocket and described master
Valve port（11）The piston of cooperation（2）, described piston（2）Separating described valve pocket is epicoele（12）And cavity of resorption（13）, and described piston
（2）Upper end be provided with the pilot valve mouth being turned on and off by pilot valve components（21）；Described bidirectional electromagnetic valve also include with described under
Chamber（13）The horizontal adapter of connection（31）, and pass through described primary valve（11）Can be with cavity of resorption（13）The vertical joint pipe of connection（32）；It is special
Levy and be, described piston（2）Circumferential side wall and the inwall of corresponding described valve pocket between there are passage gaps（14）；Described
Piston（2）Be provided with all with described pilot valve mouth（21）Connection simultaneously can be by described epicoele（12）To described horizontal adapter（31）One end is unidirectional
Conducting tie point and can be by described epicoele（12）To described vertical joint pipe（32）Second branch road of one end one-way conduction；Described
Piston（2）On be additionally provided with can be by described vertical joint pipe（32）One end is to described epicoele（12）3rd branch road of one-way conduction；Described lead
Valve port（21）It is more than described passage gaps with circulation area determined by described second branch road（14）Circulation area, described pilot valve
Mouthful（21）It is more than the circulation area of described 3rd branch road with circulation area determined by described tie point；
Described valve seat（1）Inwall be provided with valve seat guide section（15）, described piston（2）Outer circumferential walls be provided with and described valve
Seat guide section（15）The piston guide section of cooperation（27）；Described piston guide section（27）Lower section offer the pipeline that external diameter diminishes
Construction section（28）, described tie point includes radial line, and described radial line is opened in described pipeline construction section（28）On；Institute
State valve seat guide section（15）Bottom offer annular groove further（16）, and described piston（2）Open described primary valve
（11）When, described radial line is generally in described annular groove（16）Just to scope in.
2. bidirectional electromagnetic valve as claimed in claim 1 is it is characterised in that described bidirectional electromagnetic valve also includes flexible member（5）,
Described piston guide section（27）With described pipeline construction section（28）Between be formed with step（29）；Described flexible member（5）It is placed on
Described piston（2）Bottom circumferentially external, and flexibly support in described step（29）With described valve seat（1）Inner bottom wall it
Between.
3. bidirectional electromagnetic valve as claimed in claim 1 or 2 is it is characterised in that be provided with radial sealing surfaces in described radial line
（233）And with this radial sealing surfaces（233）The radial seal body of cooperation（234）；It is additionally provided with so that described in described radial line
Radial seal body（234）Along described piston（2）The guide holder moving radially, and described horizontal adapter is communicated with this guide holder
（31）One end and the guide holder passage of described radial line.
4. bidirectional electromagnetic valve as claimed in claim 3 is it is characterised in that described radial line includes the first radial hole（231）
And aperture becomes the second big radial hole（232）, described radial sealing surfaces（233）It is formed at described first radial hole（231）With institute
State the second radial hole（232）Between step on；Described guide holder is located at described second radial hole（232）In, and guide support
Described radial seal body（234）Along described piston（2）Move radially, to seal or to open described radial sealing surfaces（233）.
5. bidirectional electromagnetic valve as claimed in claim 4 is it is characterised in that described guide holder is provided with the cylinder of opening for one end
（235）, described radial seal body（234）Located at described cylinder（235）Tube inner chamber（235a）In, described cylinder（235）With it
Opening is just to described radial sealing surfaces（233）, so that described radial seal body（234）It is turned on and off described radial sealing surfaces
（233）；Described guide holder passage is to be opened in described cylinder（235）Circumferential side wall on and connect described tube inner chamber（235a）With
Described second radial hole（232）Cylinder breach（235b）.
6. bidirectional electromagnetic valve as claimed in claim 5 is it is characterised in that described cylinder breach（235b）Further extend to described
Cylinder（235）Sealed bottom end so that this cylinder（235）Sealed bottom end and described second radial hole（232）Inwall
Between there is conducting gap（235c）.
7. bidirectional electromagnetic valve as claimed in claim 1 or 2 is it is characterised in that described piston（2）Offer further vertically
With described pilot valve mouth（21）The pilot passage of connection（22）, described pilot valve mouth（21）By described pilot passage（22）Respectively with institute
State tie point and described second branch road one-way conduction.
8. bidirectional electromagnetic valve as claimed in claim 7 is it is characterised in that described second branch road includes and described pilot passage
（22）The axial cavity of connection（241）, this axial cavity（241）With described pilot passage（22）Between be provided with the first axial seal
Face（242）, described axial cavity（241）Inside it is provided with this first axial sealing surface of sealing（242）The first axial seal；Described
Axial cavity（241）Away from the described first axial sealing surface（242）One end be provided with the first axial stop component（243）, and should
First axial stop component（243）It is communicated with described axial cavity（241）With described vertical joint pipe（32）The first of one end is axially
Through hole（243a）.
9. bidirectional electromagnetic valve as claimed in claim 8 is it is characterised in that the described first axial seal is nonreturn valve core
（244）, described nonreturn valve core（244）It is provided with the valve element radial hole being interconnected（244a）With valve element axial hole（244b）, described
Valve element radial hole（244a）With described axial cavity（241）Connection, described valve element axial hole（244b）Axially logical with described first
Hole（243a）Connection.
10. bidirectional electromagnetic valve as claimed in claim 1 or 2 is it is characterised in that described 3rd branch road includes and described vertical joint pipe
（32）Second axial hole of one end connection（252）, and this second axial hole（252）The other end be communicated with aperture and become the big 3rd
Axial hole（253）；Second axial hole（252）With the 3rd axial hole（253）Between be provided with the second axial seal face（254）, and the
Three axial hole（253）In be provided with sealing this second axial seal face（254）The second axial seal body（255）；Described 3rd axle
Xiang Kong（253）Away from described second axial seal face（254）One end be provided with the second axial retention part（256）, and this second
Axial retention part（256）It is communicated with the 3rd axial hole（253）With described epicoele（12）The second axially extending bore（256a）.
11. bidirectional electromagnetic valves as claimed in claim 3 are it is characterised in that described 3rd branch road includes and described vertical joint pipe
（32）Second axial hole of one end connection（252）, and this second axial hole（252）The other end be communicated with aperture and become the big 3rd
Axial hole（253）；Second axial hole（252）With the 3rd axial hole（253）Between be provided with the second axial seal face（254）, and the
Three axial hole（253）In be provided with sealing this second axial seal face（254）The second axial seal body（255）；Described 3rd axle
Xiang Kong（253）Away from described second axial seal face（254）One end be provided with the second axial retention part（256）, and this second
Axial retention part（256）It is communicated with the 3rd axial hole（253）With described epicoele（12）The second axially extending bore（256a）.
12. bidirectional electromagnetic valves as claimed in claim 3 are it is characterised in that described piston（2）Offer further vertically with
Described pilot valve mouth（21）The pilot passage of connection（22）, described pilot valve mouth（21）By described pilot passage（22）Respectively with described
Tie point and described second branch road one-way conduction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210077156.0A CN103322273B (en) | 2012-03-21 | 2012-03-21 | Bidirectional electromagnetic valve |
| PCT/CN2013/071062 WO2013139187A1 (en) | 2012-03-21 | 2013-01-29 | Bidirectional solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210077156.0A CN103322273B (en) | 2012-03-21 | 2012-03-21 | Bidirectional electromagnetic valve |
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| Publication Number | Publication Date |
|---|---|
| CN103322273A CN103322273A (en) | 2013-09-25 |
| CN103322273B true CN103322273B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210077156.0A Active CN103322273B (en) | 2012-03-21 | 2012-03-21 | Bidirectional electromagnetic valve |
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| CN (1) | CN103322273B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676081B (en) * | 2013-11-26 | 2019-02-12 | 浙江盾安禾田金属有限公司 | A kind of solenoid valve |
| CN104728509B (en) * | 2013-12-18 | 2017-04-19 | 浙江三花制冷集团有限公司 | Solenoid valve and refrigeration system with same |
| CN106523767B (en) * | 2015-09-10 | 2019-12-31 | 浙江盾安禾田金属有限公司 | Two-way electromagnetic valve |
| CN106678431B (en) * | 2017-03-10 | 2022-12-27 | 林兵磊 | Normally open solenoid electric valve |
| CN216743076U (en) * | 2021-12-07 | 2022-06-14 | 浙江盾安机械有限公司 | Electromagnetic valve and air conditioning system with same |
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|---|---|---|---|---|
| CH656188A5 (en) * | 1981-09-26 | 1986-06-13 | Barmag Barmer Maschf | Adjustable choke valve |
| EP0204666A1 (en) * | 1985-05-31 | 1986-12-10 | EDI SYSTEM Srl | A two-way reversible-flow hydraulic control valve |
| JP2966597B2 (en) * | 1991-09-17 | 1999-10-25 | 株式会社鷺宮製作所 | Two-way solenoid valve |
| US6328275B1 (en) * | 2000-02-04 | 2001-12-11 | Husco International, Inc. | Bidirectional pilot operated control valve |
| CN2675970Y (en) * | 2003-05-12 | 2005-02-02 | 浙江三花股份有限公司 | Fore running type bidirectional current electromagnetic valve |
| CN101893098A (en) * | 2009-05-22 | 2010-11-24 | 浙江三花股份有限公司 | Pilot-operated type two-way circulated solenoid valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2524030Y (en) * | 2002-01-14 | 2002-12-04 | 张伟 | One-way valve on beer barrel |
| CN102330834B (en) * | 2011-09-07 | 2014-08-20 | 浙江中宝自控元件有限公司 | Electromagnetic valve |
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2012
- 2012-03-21 CN CN201210077156.0A patent/CN103322273B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH656188A5 (en) * | 1981-09-26 | 1986-06-13 | Barmag Barmer Maschf | Adjustable choke valve |
| EP0204666A1 (en) * | 1985-05-31 | 1986-12-10 | EDI SYSTEM Srl | A two-way reversible-flow hydraulic control valve |
| JP2966597B2 (en) * | 1991-09-17 | 1999-10-25 | 株式会社鷺宮製作所 | Two-way solenoid valve |
| US6328275B1 (en) * | 2000-02-04 | 2001-12-11 | Husco International, Inc. | Bidirectional pilot operated control valve |
| CN2675970Y (en) * | 2003-05-12 | 2005-02-02 | 浙江三花股份有限公司 | Fore running type bidirectional current electromagnetic valve |
| CN101893098A (en) * | 2009-05-22 | 2010-11-24 | 浙江三花股份有限公司 | Pilot-operated type two-way circulated solenoid valve |
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| CN103322273A (en) | 2013-09-25 |
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