CN103244740B - Solenoid valve and serial type solenoid valve - Google Patents
Solenoid valve and serial type solenoid valve Download PDFInfo
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- CN103244740B CN103244740B CN201310023320.4A CN201310023320A CN103244740B CN 103244740 B CN103244740 B CN 103244740B CN 201310023320 A CN201310023320 A CN 201310023320A CN 103244740 B CN103244740 B CN 103244740B
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Abstract
The invention provides a kind of solenoid valve and serial type solenoid valve, it prevents air to the intrusion of the spring accommodation chamber of linear solenoid valve by small-sized and simple structure.Solenoid (14) and spring (16) is connected at the two ends of the guiding valve (13) being embedded in sleeve (12), the oil storage portion (17) marked off between the outer circumferential face of sleeve (12) and the inner peripheral surface of the sleeve bearing hole (11a) of valve body (11) is communicated with spring accommodation chamber (15) via aperture (12f), and on the top of sleeve (12), oil storage portion (17) are communicated with atmosphere opening port (P1), therefore, can not only utilize from pressure port (P5) oil spill to fill spring accommodation chamber, the oil in oil storage portion is prevented to fall from atmosphere opening port due to gravity, air can be stoped to invade spring accommodation chamber from oil storage portion.In addition, owing to not needing formation in addition large-scale and the oil storage portion that pasta is higher, therefore, it is possible to make valve body miniaturization.
Description
Technical field
The serial type solenoid valve that the present invention relates to a kind of solenoid valve and two these solenoid valves are combined, described solenoid valve possesses: sleeve, and it is embedded in the sleeve bearing hole of valve body, and is formed with pressure port and atmosphere opening port; Guiding valve, it is embedded in described sleeve in the mode slid freely; Solenoid, it is connected with the end side of described guiding valve; Spring accommodation chamber, it is formed at another side of described guiding valve; And spring, it is incorporated in described spring accommodation chamber, and exerts a force to described solenoid to described guiding valve.
Background technique
Driving in the linear solenoid valve of guiding valve by linear solenoid, exist guiding valve due to the variation of the variation of the pressure of oil or the electric current of linear solenoid the situation in axial vibration, when there is this vibration, the problem that the control accuracy that there is oil pressure reduces.
So, according to following patent documentation 1, there will be a known following solenoid valve: come linking springs accommodation chamber and oil storage portion by aperture, spring accommodation chamber is for receiving the spring exerted a force to linear solenoid to guiding valve, when the volume of guiding valve vibration, spring accommodation chamber increases or reduces, oil in spring accommodation chamber and oil storage portion comes and goes via aperture, is suppressed the vibration of guiding valve by the damping force now produced.
Patent documentation 1: Japanese Unexamined Patent Publication 2002-130513 publication
But, in the solenoid valve described in above-mentioned patent documentation 1, be formed with special oil storage portion in the inside of valve body, and the pasta in oil storage portion is set in the position higher than linear solenoid valve, thus prevent the intrusion of air to spring accommodation chamber, but, there is following problem in it: according to this mode, then need large-scale oil storage portion, valve body is maximized, moreover, the setting position of linear solenoid valve also due to the pasta in itself and oil storage portion height between relation and be restricted.
Summary of the invention
The present invention completes in view of the foregoing, its object is to stop air to the intrusion of the spring accommodation chamber of linear solenoid valve by small-sized and simple structure.
In order to reach above-mentioned purpose, according to the invention that technological scheme 1 is recorded, propose there is a kind of solenoid valve, it possesses: sleeve, and it is embedded in the sleeve bearing hole of valve body, and is formed with pressure port and atmosphere opening port; Guiding valve, it is embedded in described sleeve in the mode slid freely; Solenoid, it is connected with the end side of described guiding valve; Spring accommodation chamber, it is formed at another side of described guiding valve; And spring, it is incorporated in described spring accommodation chamber, and described guiding valve is exerted a force to described solenoid, the feature of described solenoid valve is: described pressure port be configured to adjacent with described spring accommodation chamber, oil storage portion is marked off between the outer circumferential face and the inner peripheral surface of described sleeve bearing hole of described sleeve, described oil storage portion is communicated with described spring accommodation chamber via aperture, and on the top of described sleeve, described oil storage portion is communicated with described atmosphere opening port.
In addition, according to the invention that technological scheme 2 is recorded, on the basis of the structure of technological scheme 1, propose there is a kind of solenoid valve, it is characterized in that: described sleeve bearing hole has opening portion and described sleeve bearing hole is formed as bag-shaped, and described sleeve is inserted into described sleeve bearing hole from described opening portion.
In addition, according to the invention that technological scheme 3 is recorded, on the basis of the structure of technological scheme 1 or technological scheme 2, propose there is a kind of solenoid valve, it is characterized in that: the volume-variation amount of the described spring accommodation chamber that the volume ratio in described oil storage portion and the movement of described guiding valve are accompanied is large.
In addition, according to the invention that technological scheme 4 is recorded, propose there is a kind of serial type solenoid valve, it possesses: 1st, the 2nd sleeve, and they are embedded in the sleeve bearing hole of valve body, and are formed with pressure port and atmosphere opening port respectively, 1st, the 2nd guiding valve, they are embedded in described 1st, the 2nd sleeve in the mode slid freely respectively, 1st, the 2nd solenoid, they are connected with the end side of described 1st, the 2nd guiding valve respectively, 1st, the 2nd spring accommodation chamber, they are formed at another side of described 1st, the 2nd guiding valve respectively, and the 1st, 2nd spring, they are incorporated in the described 1st respectively, in 2nd spring accommodation chamber, and respectively to the described 1st, 2nd guiding valve is to the described 1st, 2nd solenoid force, the feature of described serial type solenoid valve is: described pressure port be configured to only with the described 1st, a side in 2nd spring accommodation chamber is adjacent, the described 1st, single oil storage portion is marked off between the outer circumferential face of at least one party in the 2nd sleeve and the inner peripheral surface of described sleeve bearing hole, by described reservoir portion not via the 1st, 2nd aperture and the described 1st, 2nd spring accommodation chamber is communicated with, and the described 1st, described oil storage portion is communicated with described atmosphere opening port by the top of at least one party in the 2nd sleeve.
In addition, according to the invention that technological scheme 5 is recorded, on the basis of the structure of technological scheme 4, proposition has a kind of serial type solenoid valve, it is characterized in that: described sleeve bearing hole has two opening portions and the through described valve body of described sleeve bearing hole, described 1st, the 2nd sleeve is inserted into described sleeve bearing hole from described two opening portions respectively.
In addition, according to the invention that technological scheme 6 is recorded, on the basis of the structure of technological scheme 4 or technological scheme 5, proposition has a kind of serial type solenoid valve, it is characterized in that: the volume-variation amount of the described 1st spring accommodation chamber that the volume ratio in described oil storage portion and the movement of described 1st guiding valve are accompanied and the volume-variation amount sum of described 2nd spring accommodation chamber accompanied with the movement of described 2nd guiding valve large.
In addition, the linear solenoid 14,14 ' of mode of execution is corresponding with solenoid of the present invention, damping hole 12f, 12f of mode of execution ' corresponding with aperture of the present invention, feedback port P5, P5 of mode of execution ' corresponding with pressure port of the present invention.
According to the structure of technological scheme 1, solenoid and spring is connected at the two ends of the guiding valve being embedded in sleeve in the mode slid freely, the oil storage portion marked off between the outer circumferential face of sleeve and the inner peripheral surface of the sleeve bearing hole of valve body is communicated with spring accommodation chamber via aperture, and on the top of sleeve, oil storage portion is communicated with atmosphere opening port, therefore, it is possible to by filling spring accommodation chamber from pressure port oil spill.Thus, when the vibration due to guiding valve causes the volume of spring accommodation chamber to increase or reduce, the oil in spring accommodation chamber and oil storage portion comes and goes via aperture, can suppress the vibration of guiding valve thus.Because oil storage portion is communicated with atmosphere opening port on the top of sleeve, therefore prevent the oil in oil storage portion to fall from atmosphere opening port due to gravity, air can be stoped to invade spring accommodation chamber from oil storage portion.In addition, owing to not needing formation in addition large-scale and the oil storage portion that pasta is higher, therefore, it is possible to make valve body miniaturization.
In addition, according to the structure of technological scheme 2, due to sleeve bearing hole, there is opening portion and be formed as bag-shaped, being therefore inserted into sleeve bearing hole by means of only by sleeve from opening portion, just can form oil storage portion between the inner peripheral surface of sleeve bearing hole and the outer circumferential face of sleeve.
In addition, according to the structure of technological scheme 3, the volume-variation amount of the spring accommodation chamber accompanied due to the volume ratio in oil storage portion and the movement of guiding valve is large, even if therefore the oil of maximum flow be pressed out to oil storage portion from spring accommodation chamber and make oil overflow from oil storage portion, also the oil of the amount of more than the oil of described maximum flow can be retained in oil storage portion, spring accommodation chamber can be full of with oil, to prevent the intrusion of air when spring accommodation chamber got back to by this oil.
In addition, according to the structure of technological scheme 4, the 1st is being embedded in respectively in the mode slid freely, the 1st of 2nd sleeve, the two ends of the 2nd guiding valve are connected to the 1st, 2nd solenoid and the 1st, 2nd spring, will the 1st, the single reservoir portion marked off between the outer circumferential face of at least one party in the 2nd sleeve and the inner peripheral surface of sleeve bearing hole is not via the 1st, 2nd aperture and the 1st, 2nd spring accommodation chamber is communicated with, and the 1st, oil storage portion is communicated with atmosphere opening port by the top of at least one party in the 2nd sleeve, therefore, can the 1st, a side extend oil adjacent with pressure port in 2nd spring accommodation chamber, the 1st is flow into via oil storage portion by making this oil, the opposing party in 2nd spring accommodation chamber, can the 1st, 2nd spring accommodation chamber both sides extend oil.Thus, when the vibration due to the 1st, the 2nd guiding valve causes the volume of the 1st, the 2nd spring accommodation chamber to increase or reduce, the oil in the 1st, the 2nd spring accommodation chamber and oil storage portion comes and goes via the 1st, the 2nd aperture, can suppress the vibration of the 1st, the 2nd guiding valve thus.Because the top of at least one party of oil storage portion in the 1st, the 2nd sleeve is communicated with atmosphere opening port, therefore prevent the oil in oil storage portion to fall from atmosphere opening port due to gravity, air can be stoped from oil storage portion to invade the 1st, the 2nd spring accommodation chamber.In addition, owing to not needing formation in addition large-scale and the oil storage portion that pasta is higher, therefore, it is possible to make valve body miniaturization.
In addition, according to the structure of technological scheme 5, because sleeve bearing hole has two opening portions and through valve body, be therefore inserted into sleeve bearing hole from two opening portions respectively by means of only by the 1st, the 2nd sleeve, just can form oil storage portion between the inner peripheral surface of sleeve bearing hole and the outer circumferential face of sleeve.
In addition, according to the structure of technological scheme 6, the volume-variation amount of the 1st spring accommodation chamber accompanied due to the volume ratio in oil storage portion and the movement of the 1st guiding valve and the volume-variation amount sum of the 2nd spring accommodation chamber accompanied with the movement of the 2nd guiding valve large, even if therefore by the oil of maximum flow from the 1st, 2nd spring accommodation chamber both sides are pressed out to oil storage portion and oil are overflowed from oil storage portion, also the oil of the amount of more than the oil of described maximum flow can be retained in oil storage portion, the 1st can be got back at this oil, the 1st is full of with oil during the 2nd spring accommodation chamber, 2nd spring accommodation chamber, to prevent the intrusion of air.
Accompanying drawing explanation
Fig. 1 is the figure (valve closing state) of the structure that linear solenoid valve is shown.[the 1st mode of execution]
Fig. 2 is the Action Specification figure (valve opening state) corresponding with Fig. 1.[the 1st mode of execution]
Fig. 3 is the figure (valve closing state) of the structure that linear solenoid valve is shown.[the 2nd mode of execution]
Fig. 4 is the figure of the structure of the linear solenoid valve that serial type is shown.[the 3rd mode of execution]
Label declaration
11: valve body;
11a: sleeve bearing hole;
12,12 ': sleeve;
12f, 12f ': damping hole (aperture);
13,13 ': guiding valve;
14,14 ': linear solenoid (solenoid);
15,15 ': spring accommodation chamber;
16,16 ': spring;
17: oil storage portion;
P5, P5 ': feedback port (pressure port);
P1, P1 ': atmosphere opening port.
Embodiment
[the 1st mode of execution]
Below, according to Fig. 1 and Fig. 2, the 1st mode of execution of the present invention is described.
As shown in Figure 1, the linear solenoid valve V being such as used in the normal close type in the hydraulic pressure control device of the speed changer of automobile possesses: valve body 11, and it is formed with bag-shaped sleeve bearing hole 11a; The sleeve 12 of bottomed cylindrical, it is embedded in the sleeve bearing hole 11a of valve body 11; Guiding valve 13, it is embedded in sleeve 12 in the mode slid axially freely; And linear solenoid 14, it is connected with the end side of guiding valve 13, and linear solenoid 14 is configured in the outside of valve body 11.
Be formed with atmosphere opening port P1, discharge port P2, output port P3, input port P4 and feedback port P5 from its end side (figure left end side) to another side (in figure right-hand member side) at sleeve 12, atmosphere opening port P1, discharge port P2, output port P3 and input port P4 respectively with atmosphere opening oil circuit H1, discharge oil circuit H2, output circuit H3 and input oil circuit H4 and be connected.Atmosphere opening oil circuit H1, to atmosphere opening, discharges oil circuit H2 and is connected with oil tank, and the oil pressure units such as output circuit H3 and oil clutch are connected, and input oil circuit H4 and are connected with oil pump.Feedback port P5 is communicated with output port P3 with the 1st oil groove 12b by feedback aperture 12a, and feedback aperture 12a radially through sleeve the 12,1st oil groove 12b is formed at the outer circumferential face of sleeve 12 in the axial direction.
At guiding valve 13, be formed with the 1st groove G1, the 1st shoulder L1, the 2nd groove G2, the 2nd shoulder L2 and the 3rd shoulder L3 from its end side to another side, between the diapire 12c and the other end of guiding valve 13 of the sleeve 12 of bottomed cylindrical, divide spring accommodation chamber 15.The spring 16 pairs of guiding valves 13 being accommodated in spring accommodation chamber 15 exert a force to linear solenoid 14.Atmosphere opening port P1 and feedback port P5 opening all the time, and connection between discharge port P2, output port P3 and input port P4, to cut off be control according to the position of guiding valve 13.
Oil storage portion 17 is formed between the inner peripheral surface and the outer circumferential face of sleeve 12 of sleeve bearing hole 11a.Namely, the 2nd oil groove 12d extended vertically is formed on the top of the outer circumferential face of sleeve 12, the space formed between the 2nd oil groove 12d and the inner peripheral surface of sleeve bearing hole 11a and the space formed between the bottom 11b and the diapire 12c of sleeve 12 of sleeve bearing hole 11a are interconnected, and these two spaces constitute oil storage portion 17.One end in oil storage portion 17 is communicated with atmosphere opening port P1 via oilhole 12e, and the other end in oil storage portion 17 is communicated with spring accommodation chamber 15 via damping hole 12f.
Then, the effect of the 1st mode of execution of the present invention possessing said structure is described.
As shown in Figure 1, if carry out demagnetization to the linear solenoid 14 of the linear solenoid valve V of normal close type, then guiding valve 13 is moved to the left by the elastic force of spring 16, linear solenoid valve V becomes valve closing state, input port P4 was cut off by the 2nd shoulder L2 with being communicated with of output port P3, and output port P3 is communicated with via the 2nd groove G2 with discharge port P2.Consequently, the output circuit H3 being connected to oil pressure unit disconnects from the input oil circuit H4 being connected to oil pump, and is connected with the discharge oil circuit H2 being connected to oil tank, and the work of oil pressure unit stops.Now, because output port P3 is barometric pressure, the feedback port P5 be therefore communicated with output port P3 via the 1st oil groove 12b and feedback aperture 12a also becomes barometric pressure.
If state carries out excitation to linear solenoid 14 thus, then as shown in Figure 2, guiding valve 13 Compress Spring 16 also moves right, and linear solenoid valve V becomes valve opening state, output port P3 is communicated with via the 2nd groove G2 with input port P4, and output port P3 was cut off by the 1st shoulder L1 with being communicated with of discharge port P2.Consequently, the output circuit H3 being connected to oil pressure unit disconnects from the discharge oil circuit H2 being connected to oil tank, and is connected with the input oil circuit H4 being connected to oil pump, oil pressure unit work.
Now, the oil pressure of output port P3 is passed to feedback port P5 via the 1st oil groove 12b and feedback aperture 12a, this oil pressure exerts a force to the end difference left direction of the 2nd shoulder L2 and the 3rd shoulder L3, therefore, guiding valve 13 stop at the elastic force of the left direction of spring 16 and result from the oil pressure sum of left direction of feedback port P5, position that the thrust of right direction that exports with linear solenoid 14 balances each other, thereby, it is possible to export the oil pressure corresponding with the current value supplied linear solenoid 14 from output port P3.
When linear solenoid valve V is in valve opening state, because feedback port P5 becomes high pressure, be therefore supplied to the spring accommodation chamber 15 adjacent with feedback port P5 by the gap α of the ring-type between the outer circumferential face of the 3rd shoulder L3 and the inner peripheral surface of sleeve 12 from feedback port P5 oil spill.The oil being supplied to the inside of spring accommodation chamber 15 is full of oil storage portion 17 by damping hole 12f, and via being formed at the oilhole 12e in oil storage portion 17 and atmosphere opening port P1 and discharging.Because described oilhole 12e is arranged on the extreme higher position in oil storage portion 17, therefore the oil in oil storage portion 17 is retained as and can not falls because of gravity.
Therefore, when the variation of the pressure of the oil due to the internal flow at linear solenoid valve V or the electric current of linear solenoid 14 variation etc. and when causing guiding valve 13 to vibrate vertically, oil in spring accommodation chamber 15 comes and goes between spring accommodation chamber 15 and oil storage portion 17 via damping hole 12f, and oil can be utilized at the damping force by producing during damping hole 12f to suppress the vibration of guiding valve 13.
When linear solenoid valve V is transferred to valve opening state from valve closing state, when guiding valve 13 moves right, the volume of spring accommodation chamber 15 reduces according to the stroke of guiding valve 13, the oil equal with the volume reduced is discharged to oil storage portion 17 from damping hole 12f, and the oil in oil storage portion 17 is discharged to atmosphere opening port P1 from oilhole 12e.Thereafter, when linear solenoid valve V valve closing, guiding valve 13 is moved to the left original position, during the volume enlargement of spring accommodation chamber 15, the oil remained in oil storage portion 17 gets back to spring accommodation chamber 15 by damping hole 12f, therefore prevents air to invade in spring accommodation chamber 15.Now, the oil in oil storage portion 17 decreases the amount of getting back to spring accommodation chamber 15, but utilize from feedback port P5, through spring accommodation chamber 15, the oil of supply supplements rapidly.
In addition, if suppose, the volume in oil storage portion 17 is less than the reduction volume of the volume of spring accommodation chamber 15, then when spring accommodation chamber 15 has carried out expansion after smaller volume, the oil in oil storage portion 17 becomes empty completely, therefore following possibility is had: air invades spring accommodation chamber 15 from oil storage portion 17 by damping hole 12f, cannot suppress the vibration of guiding valve 13.But, according to the present embodiment, the volume due to oil storage portion 17 is set to be greater than the reduction volume of the volume of spring accommodation chamber 15, therefore when the volume enlargement of spring accommodation chamber 15, the oil in oil storage portion 17 can not become empty, can reliably prevent air to the intrusion of spring accommodation chamber 15.
As above, according to the present embodiment, adjacent with the feedback port P5 as pressure port due to spring accommodation chamber 15 is arranged to, therefore without the need to forming special oil circuit, just can utilize from feedback port P5 that oil spill fills spring accommodation chamber 15 by the outer circumferential face of guiding valve 13.In addition, owing to being formed with oil storage portion 17 between the bag-shaped sleeve bearing hole 11a and the outer circumferential face of sleeve 12 of valve body 11, this oil storage portion 17 is communicated with spring accommodation chamber 15 via damping hole 12f, therefore, it is possible to form oil storage portion 17 by means of only being inserted from the opening portion of sleeve bearing hole 11a by sleeve 12, can the simplification of implementation structure and the raising of assembling performance.
In addition, owing to oilhole 12e to be arranged on the extreme higher position in oil storage portion 17, this oilhole 12e is used for oil storage portion 17 is communicated with atmosphere opening port P1, therefore, it is possible to prevent the oil in oil storage portion 17 from dropping down onto atmosphere opening port P1 due to gravity.In addition, owing to by the volume settings in oil storage portion 17 being the reduction volume of the volume being greater than spring accommodation chamber 15, therefore when the volume enlargement of spring accommodation chamber 15, the oil in oil storage portion 17 can not become empty, can reliably prevent air to the intrusion of spring accommodation chamber 15.In addition, owing to not needing formation in addition large-scale and the oil storage portion that pasta is higher, therefore, it is possible to make valve body 11 miniaturization, and do not need to consider the position relationship between the pasta in the oil storage portion formed in addition and linear solenoid valve V.
[the 2nd mode of execution]
Below, according to Fig. 3, the 2nd mode of execution of the present invention is described.
1st mode of execution forms the part in oil storage portion 17 by the 2nd oil groove 12d formed at the outer circumferential face of sleeve 12, but in the 2nd mode of execution, defines the 3rd oil groove 12g suitable with described 2nd oil groove 12d at the inner peripheral surface of the sleeve bearing hole 11a of valve body 11.According to the 2nd mode of execution, the action effect same with above-mentioned 1st mode of execution also can be reached.
[the 3rd mode of execution]
Below, according to Fig. 4, the 3rd mode of execution of the present invention is described.
1st mode of execution or the 2nd mode of execution relate to the linear solenoid valve V(of normal close type hereinafter referred to as the 1st linear solenoid valve V), and the 3rd mode of execution relates to the linear solenoid valve V ' (hereinafter referred to as the 2nd linear solenoid valve V ') of the linear solenoid valve V of described normal close type and open type is combined the serial type linear solenoid valve obtained.
The structure of the 2nd linear solenoid valve V ' is similar with the structure (identical with the linear solenoid valve V essence of the 1st mode of execution) of the 1st linear solenoid valve V, only different in the configuration of the port of the shoulder of guiding valve and the configuration of groove and sleeve.The label of the constituting component of the 2nd linear solenoid valve V ' is additional " ' after the label of the constituting component of the 1st linear solenoid valve V in correspondence " obtain.
Sleeve bearing hole 11a is formed at valve body 11, this sleeve bearing hole 11a has opening portion at two ends and through described valve body 11, be inserted with the sleeve 12 of the 1st linear solenoid valve V from an opening portion, be inserted with the sleeve 12 ' of the 2nd linear solenoid valve V ' from another opening portion.
On the sleeve 12 ' of the 2nd linear solenoid valve V ', be formed with atmosphere opening port P1 ', feedback port P5 ', input port P4 ', output port P3 ' and discharge port P2 ' from its end side (right-hand member side) to another side (left end side), atmosphere opening port P1 ', input port P4 ', output port P3 ' and discharge port P2 ' respectively with atmosphere opening oil circuit H1 ', input oil circuit H4 ', output circuit H3 ' and discharge oil circuit H2 ' and be connected.At guiding valve 13 ', be formed with the 1st groove G1 ' the 1st shoulder L1 ', the 2nd shoulder L2 ', the 2nd groove G2 ' and the 3rd shoulder L3 ' from its end side to another side.
Be formed with the 2nd oil groove 12d ' extended vertically on the top of the outer circumferential face of sleeve 12 ', and by the space that formed between the 2nd oil groove 12d ' and the inner peripheral surface of sleeve bearing hole 11a, and the spatial division that formed between sleeve 12 and the opposed portion of sleeve 12 ' go out oil storage portion 17.Oil storage portion 17 is communicated with atmosphere opening port P1 ' via oilhole 12e ', and is communicated with spring accommodation chamber 15 ' via damping hole 12f '.In addition, the spring accommodation chamber 15 of the 1st linear solenoid valve V is communicated with identical oil storage portion 17 via damping hole 12f.
Then, the effect of the 3rd mode of execution of the present invention possessing said structure is described.
As shown in Figure 4, if carry out demagnetization to the linear solenoid 14 ' of the 2nd linear solenoid valve V ' of open type, then guiding valve 13 ' is moved right by the elastic force of spring 16 ', 2nd linear solenoid valve V ' becomes valve opening state, output port P3 ' is communicated with via the 2nd groove G2 ' with input port P4 ', and output port P3 ' was cut off by the 3rd shoulder L3 ' with being communicated with of discharge port P2 '.Consequently, the output circuit H3 ' being connected to oil pressure unit disconnects from the discharge oil circuit H2 ' being connected to oil tank, and is connected with the input oil circuit H4 ' being connected to oil pump, oil pressure unit work.Now, because the output port P3 ' be communicated with input port P4 ' is high pressure, the feedback port P5 ' be therefore communicated with output port P3 ' via the 1st oil groove 12b ' and feedback aperture 12a ' also becomes high pressure.
If state carries out excitation to linear solenoid 14 ' thus, then guiding valve 13 ' Compress Spring 16 ' being moved to the left, 2nd linear solenoid valve V ' becomes valve closing state, output port P3 ' is communicated with via the 2nd groove G2 ' with discharge port P2 ', and output port P3 ' was cut off by the 2nd shoulder L2 ' with being communicated with of input port P4 '.Consequently, the output circuit H3 ' being connected to oil pressure unit disconnects from the input oil circuit H4 ' being connected to oil pump, and is connected with the discharge oil circuit H2 ' being connected to oil tank, and the work of oil pressure unit stops.
Now, the oil pressure of output port P3 ' reduces gradually, thus, from output port P3 ' via the 1st oil groove 12b ' with feedback aperture 12a ' is passed to feedback port P5 ' and oil pressure for exerting a force to the end difference left direction of the 1st shoulder L1 ' and the 2nd shoulder L2 ' also reduces gradually, therefore, guiding valve 13 ' stops at the thrust of the left direction that linear solenoid 14 ' exports and results from the oil pressure sum of left direction of feedback port P5 ', the position of balancing each other with the elastic force of the right direction of spring 16 ', thus, the oil pressure corresponding with the current value supplied linear solenoid 14 ' can be supplied from output port P3 '.
In addition, for the 2nd linear solenoid valve V ' of open type, due to for atmospheric discharge port P2 ' adjacent with spring accommodation chamber 15 ', therefore oil cannot be supplied to spring accommodation chamber 15 ' from discharge port P2 ' via the gap of the periphery of guiding valve 13 ', thus, also oil cannot be supplied to oil storage portion 17 from spring accommodation chamber 15 '.But, due to identical with the 1st mode of execution, from the spring accommodation chamber 15 of the 1st linear solenoid valve V, oil is supplied to oil storage portion 17, therefore, it is possible to successfully remained in oil storage portion 17 by oil.
Therefore, according to the 3rd mode of execution, on the basis of the action effect of the 1st mode of execution, can not only oil storage portion 17 be shared at the 1st, the 2nd linear solenoid valve V, V ' and realize the miniaturization of valve body 11, and, even if the 2nd linear solenoid valve V ' is open type, oil cannot be replenished to oil storage portion 17 from spring accommodation chamber 15 ', also oil can be replenished to oil storage portion 17 from the spring accommodation chamber 15 of the 1st linear solenoid valve V of normal close type.
Above, embodiments of the present invention are illustrated, but the present invention can carry out various design alteration in the scope not departing from its purport.
Such as, pressure port of the present invention is not limited to feedback port P5, P5 of mode of execution ', also can be input port P4, P4 '.
Claims (5)
1. a solenoid valve, it possesses:
Sleeve (12), it is embedded in the sleeve bearing hole (11a) of valve body (11), and is formed with pressure port (P5) and atmosphere opening port (P1);
Guiding valve (13), it is embedded in described sleeve (12) in the mode slid freely;
Solenoid (14), it is connected with the end side of described guiding valve (13);
Spring accommodation chamber (15), it is formed at another side of described guiding valve (13); And
Spring (16), it is incorporated in described spring accommodation chamber (15), and to described guiding valve (13) to described solenoid (14) force,
The feature of described solenoid valve is:
Described pressure port (P5) is configured to adjacent with described spring accommodation chamber (15), oil storage portion (17) is marked off between the outer circumferential face and the inner peripheral surface of described sleeve bearing hole (11a) of described sleeve (12), described oil storage portion (17) is communicated with described spring accommodation chamber (15) via aperture (12f), and on the top of described sleeve (12), described oil storage portion (17) is communicated with described atmosphere opening port (P1)
Described sleeve bearing hole (11a) has opening portion and described sleeve bearing hole (11a) is formed as bag-shaped, and described sleeve (12) is inserted into described sleeve bearing hole (11a) from described opening portion,
Described atmosphere opening port (P1) is formed at the end side of described sleeve (12), described pressure port (P5) is formed at another side of described sleeve (12), and described oil storage portion (17) is made up of the space extended vertically formed between the top of the outer circumferential face at described sleeve (12) and the inner peripheral surface of described sleeve bearing hole (11a) and the space formed between the bottom (11b) and the diapire (12c) of described sleeve (12) of described sleeve bearing hole (11a).
2. solenoid valve according to claim 1, is characterized in that:
The volume-variation amount of the described spring accommodation chamber (15) that the volume ratio of described oil storage portion (17) and the movement of described guiding valve (13) are accompanied is large.
3. a serial type solenoid valve, it possesses:
1st, the 2nd sleeve (12,12 '), they are embedded in the sleeve bearing hole (11a) of valve body (11), and are formed with pressure port (P5, P5 ') and atmosphere opening port (P1, P1 ') respectively;
1st, the 2nd guiding valve (13,13 '), they are embedded in described 1st, the 2nd sleeve (12,12 ') in the mode slid freely respectively;
1st, the 2nd solenoid (14,14 '), they are connected with the end side of described 1st, the 2nd guiding valve (13,13 ') respectively;
1st, the 2nd spring accommodation chamber (15,15 '), they are formed at another side of described 1st, the 2nd guiding valve (13,13 ') respectively; And
1st, the 2nd spring (16,16 '), they are incorporated in described 1st, the 2nd spring accommodation chamber (15,15 ') respectively, and respectively described 1st, the 2nd guiding valve (13,13 ') is exerted a force to described 1st, the 2nd solenoid (14,14 ')
The feature of described serial type solenoid valve is:
By described pressure port (P5, P5 ') be configured to only with the described 1st, 2nd spring accommodation chamber (15, 15 ') side in is adjacent, the described 1st, 2nd sleeve (12, 12 ') single oil storage portion (17) is marked off between the outer circumferential face of at least one party in and the inner peripheral surface of described sleeve bearing hole (11a), by described oil storage portion (17) respectively via the 1st, 2nd aperture (12f, 12f ') with the described 1st, 2nd spring accommodation chamber (15, 15 ') be communicated with, and the described 1st, 2nd sleeve (12, 12 ') top of at least one party in is by described oil storage portion (17) and described atmosphere opening port (P1, P1 ') be communicated with,
Described 1st, 2nd sleeve (12, 12 ') the described atmosphere opening port (P1 of at least one party in, P1 ') be formed at the end side of this sleeve, described 1st, 2nd sleeve (12, 12 ') the described pressure port (P5 of at least one party in, P5 ') be formed at another side of this sleeve, described oil storage portion (17) is by the described 1st, 2nd sleeve (12, 12 ') space extended vertically formed between the top of the outer circumferential face of at least one party in and the inner peripheral surface of described sleeve bearing hole (11a), with the described 1st, 2nd sleeve (12, 12 ') space formed between opposed portion is formed.
4. serial type solenoid valve according to claim 3, is characterized in that:
Described sleeve bearing hole (11a) has two opening portions and the through described valve body (11) of described sleeve bearing hole (11a), and described 1st, the 2nd sleeve (12,12 ') is inserted into described sleeve bearing hole (11a) from described two opening portions respectively.
5. the serial type solenoid valve according to claim 3 or 4, is characterized in that:
The volume-variation amount of the described 1st spring accommodation chamber (15) that the volume ratio of described oil storage portion (17) and the movement of described 1st guiding valve (13) are accompanied and the volume-variation amount sum of described 2nd spring accommodation chamber (15 ') accompanied with the movement of described 2nd guiding valve (13 ') large.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012024660A JP5939665B2 (en) | 2012-02-08 | 2012-02-08 | Solenoid valve and tandem solenoid valve |
| JP2012-024660 | 2012-02-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244740A CN103244740A (en) | 2013-08-14 |
| CN103244740B true CN103244740B (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310023320.4A Active CN103244740B (en) | 2012-02-08 | 2013-01-22 | Solenoid valve and serial type solenoid valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5939665B2 (en) |
| CN (1) | CN103244740B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265949B (en) * | 2014-09-24 | 2016-06-22 | 武汉华喜特种液压设备有限公司 | A kind of automatically controlled combination type guiding valve |
| US10018269B2 (en) | 2014-10-31 | 2018-07-10 | GM Global Technology Operations LLC | Normally high acting linear force solenoid |
| CN104908986A (en) * | 2015-05-08 | 2015-09-16 | 绍兴海邦药业有限公司 | Magnetic switch type hard capsule liquid material injection device |
| JP7463026B2 (en) * | 2019-12-26 | 2024-04-08 | ダイハツ工業株式会社 | Solenoid valve fixing structure |
| CN114110212B (en) * | 2021-12-17 | 2024-07-05 | 鞍山电磁阀有限责任公司 | Small-bore two-position three-way electromagnetic valve |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6469878A (en) * | 1987-09-10 | 1989-03-15 | Diesel Kiki Co | Solenoid proportional pressure control valve |
| JP2531884Y2 (en) * | 1990-05-21 | 1997-04-09 | エヌオーケー株式会社 | Spool valve |
| JP3575251B2 (en) * | 1997-11-12 | 2004-10-13 | 豊田工機株式会社 | solenoid valve |
| JP2000018417A (en) * | 1998-06-29 | 2000-01-18 | Aisin Seiki Co Ltd | Solenoid valve apparatus |
| DE10010877C1 (en) * | 2000-02-29 | 2001-03-22 | Mannesmann Ag | Multi-way valve for pneumatic system has 2 axially displaced valve sliders and common vent chamber positioned centrally relative to valve sliders |
| JP4030491B2 (en) * | 2003-10-15 | 2008-01-09 | 株式会社ケーヒン | Normally open hydraulic control valve |
| JP4613576B2 (en) * | 2004-10-14 | 2011-01-19 | 株式会社ジェイテクト | solenoid valve |
| JP2006177491A (en) * | 2004-12-24 | 2006-07-06 | Jtekt Corp | Electromagnetic valve |
| CN101290074B (en) * | 2008-06-10 | 2011-02-02 | 林式楷 | Electromagnetic valve |
| JP5617830B2 (en) * | 2011-12-12 | 2014-11-05 | 株式会社デンソー | Hydraulic control device |
-
2012
- 2012-02-08 JP JP2012024660A patent/JP5939665B2/en not_active Expired - Fee Related
-
2013
- 2013-01-22 CN CN201310023320.4A patent/CN103244740B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013160354A (en) | 2013-08-19 |
| CN103244740A (en) | 2013-08-14 |
| JP5939665B2 (en) | 2016-06-22 |
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