CN1637334A - Electromagnetic valve device - Google Patents
Electromagnetic valve device Download PDFInfo
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- CN1637334A CN1637334A CN 200410081689 CN200410081689A CN1637334A CN 1637334 A CN1637334 A CN 1637334A CN 200410081689 CN200410081689 CN 200410081689 CN 200410081689 A CN200410081689 A CN 200410081689A CN 1637334 A CN1637334 A CN 1637334A
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Abstract
To provide a solenoid valve having a large degree of rotating freedom regardless of arrangement of a connector part when forming a respiratory path in a solenoid part, and preventing intrusion of foreign matter. The solenoid valve gear is composed such that, in the solenoid part 10 of the solenoid valve 1, an end plate 17 having the respiratory path 18 is attached to a rear part of a stepped cylindrical yoke 11. The respiratory path 18 is formed by providing an outer part opening 181 formed in an inner surface side of the end plate 17, an inner part opening 182 formed in an inner surface side, a middle passage 183, and an end passage 184. The middle passage 183 is formed like a groove in the inner surface side of the end plate 17 such that it passes a joining face of the yoke 11 and a plunger housing part 121. By this, foreign matter intruding from the outside is blocked in the middle passage 183.
Description
Technical field
The present invention relates to be configured in the solenoid valve in the oil, say so in further detail and relate to following solenoid valve: have the fixed block (fixed iron core) and yoke and the movable piece (spool) that form magnetic field by coil magnetization, also have the solenoid part that forms the breathing route, this breathing route is used to absorb the fluid volumes change that slip produced for movable piece.
Background technique
Past, has the solenoid valve that is configured in the oil and forms the solenoid part of breathing route, for example the Japan Patent spy opens shown in the 2001-263521 communique, on the plate of the yoke rear portion configuration that constitutes solenoid part, has formed from the outside and has imported oily introduction hole as breathing route.
So, as shown in Figure 9, solenoid valve 90 is made of solenoid part 91 and guiding valve portion 100.Solenoid part 91 has: form tubular coil 92, in be contained in fixed iron core 93, yoke 94 and spool 95 in the coil 92, this spool 95 is configured in the yoke 94 slidably, towards fixed iron core 93 carry out near with separate.Axle 96 in the interspersed fixed iron core 93 has been installed on spool 95, and its slip with spool 95 is moved vertically.
On the other hand, guiding valve portion 100 structurally has: be connected with axle 96 and valve rod 101 slidably in the axial direction, and be configured to hide valve rod 101, as the sleeve 102 of frame.Valve rod 101 has the 103b of valve portion that forms large diameter a plurality of valve 103a of portion and form minor diameter with respect to axial region vertically, has disposed a plurality of mouths 104 that are arranged side by side vertically and form on sleeve 102.And, utilize valve rod 101 suitable moving in the axial direction, the 103a of each valve portion of valve rod 101 is adjusted the opening amount of each mouthful 104 of sleeve pipe 102, can adjust the operating oil pressure of supplying with to load side from delivery outlet like this.
On the other hand, in the slip that utilizes spool 95, when making valve rod 101 mobile in the axial direction by axle 96, owing to cause volume-variation, so if do not import the oil of its respective volume from the outside of solenoid valve 90, then action response deterioration, therefore, in solenoid part 91, formed the breathing route that is used for importing oil from the outside.
In the solenoid valve 90 shown in the above-mentioned communique, breathing the introduction hole 97a that is provided with oil on the plate 97 that route stops up solenoid part 91 at the rear of yoke 94.
Patent documentation 1: the Japan Patent spy opens 2001-263521 communique (referring to Fig. 1).
But in the solenoid valve shown in the above-mentioned communique 90, plate 97 carries out ca(u)lk at the rear of yoke 94 by the rearward end of the frame 98 of covering yoke 94 and coil 92 and is connected, and is combined into one with solenoid part 91.The introduction hole 97a of oil only is the hole of opening on plate 97, so outside oil is directed in the long-pending oily portion 99 with the state that contains foreign matter.Foreign matter contains more cutting powder or abrasive powder, if abrasive powder is attached on the slip surface in the solenoid part 91, then makes slip surface produce flaw, can damaging fixed part and movable piece, can not carry out clean work.So, when forming the breathing route, must seek to prevent the intrusion of dust and foreign matter.
In order to address this problem, be formed on the mounting point with connector portion breathing route.This be because, the breathing route is set on the yoke internal surface, channel volume set for to reach breathe more than the filling, this is breathed route and opens wide to the outside by the breach that inserts connector, so, enter magnetic circuit inside in order to prevent foreign matter by breathing route, must under set connector, therefore, the degrees of freedom of the installation specification of connector portion is restricted.That is to say, installation specification according to solenoid valve, for example when requiring connector portion to be positioned at the layout design of top position, breathe route and just be configured in the top position, foreign matter in the oil invades in the solenoid part from the top easily, so the new problem of the job failure of solenoid valve can occur causing easily.
Summary of the invention
The present invention proposes in order to address the above problem, and its purpose is to provide a kind of electromagnetic valve device, can prevent the intrusion of dust and foreign matter, and forms the breathing route, makes solenoid part have degrees of freedom for sense of rotation.
In order to achieve the above object, the structure of first electromagnetic valve device that the present invention relates to is, has fixed block, yoke and movable piece, and the end plate of inaccessible solenoid part is installed on the rearward end of yoke.On end plate, be provided with the breathing route that comprises crooked road, prevent the intrusion of foreign matter.That is to say,, between yoke, fixed iron core, spool, form magnetic circuit, spool is slided to the direction near fixed iron core by making coil magnetization.By the slip of spool, make the oil that accumulates around the spool in solenoid part produce volume-variation, the oil that is provided with around the position of electromagnetic valve device is imported from breathe route, so proper functioning at short notice.
By this breathing route is formed on the end plate, how the configuration that can not consider connector portion can freely dispose the layout of electromagnetic valve device, so, can improve the degrees of freedom of the layout of electromagnetic valve device.Especially, in the breathing route that on end plate, forms, in the outside opening portion that is formed at the solenoid part outside be formed between the inside opening portion of solenoid part inboard and form center-aisle with crooked road, like this, if the foreign matter of invading from the outside is stored in the crooked road, then foreign matter is difficult to invade in the solenoid part, so, can prevent that dust and foreign matter from invading in the solenoid part, can make the electromagnetic valve device proper functioning.
Second the electromagnetic valve device structure that the present invention relates to is, be formed on the center-aisle of the breathing route on the end plate, form bending by yoke and the mating face that is embedded in the container in the yoke, so, make with the oil that imports in the solenoid part and invade the interior foreign matter of solenoid part together, in center-aisle, when mobile, moving in the close clearance of foreign matter between yoke and container, and accumulating in this position by passage from outside opening portion.And, because yoke and container form by magnetic material, so, contain the foreign matter that more iron divides and can be blocked between yoke and the container, and by yoke or container absorption and be trapped on this position, can prevent that it from invading in the solenoid part.
The structure of the 3rd solenoid valve that the present invention relates to is, because the yoke of second solenoid valve and container are carried out chimeric in the mode that forms step, so, the foreign matter that moves in breathing route is blocked on the stepped part, be difficult to forwards invade from stepped part, and accumulate on the mating face of yoke and container, can prevent that it from invading in the solenoid part.
The structure of the 4th solenoid valve that the present invention relates to is, from the foreign matter of outside opening portion by invading in the breathing route, when arriving the solenoid part side of end plate, circumferencial direction in the upper edge, yoke side end face of end plate yoke moves, so the distance that arrives till the inside opening portion of end plate increases, precipitation and accumulating in the circuit on the way easily, therefore, can prevent to invade in the solenoid part.
Moreover, the structure of the 5th solenoid valve that the present invention relates to is, from the foreign matter of outside opening portion by invading in the breathing route, when arriving the solenoid part side of end plate, along along circle-shaped and the outer passage circumferential wall part that forms moves, the contact channel from an end moves along inner channel again, distance till the inside opening portion of arrival end plate increases, easily therefore precipitation and accumulating in the route on the way, can prevent to invade in the solenoid part.
Description of drawings
Fig. 1 is the front cross-sectional view of the solenoid valve of expression the present invention the 1st mode of execution.
Fig. 2 is the stereogram of the breathing route of the end plate in the presentation graphs 1.
Fig. 3 is the amplification profile of the solenoid part in the presentation graphs 1.
Fig. 4 is the partial front sectional drawing of the solenoid valve of the present invention's the 2nd mode of execution.
Fig. 5 is the stereogram of the end plate in the presentation graphs 4.
Fig. 6 is the partial front sectional drawing of the solenoid valve of the present invention's the 3rd mode of execution.
Fig. 7 is the side view of the end plate in the presentation graphs 6.
Fig. 8 is the attraction force performance diagram of solenoid valve among Fig. 1.
Fig. 9 is the sectional drawing of the existing solenoid valve of expression.
Preferred forms
Below, one embodiment of the present invention is described with reference to the accompanying drawings.The electromagnetic valve device that illustrates in the present embodiment forms on the end plate that is disposed on the rearward end of solenoid part and breathes route.And in the following description, the guiding valve side of electromagnetic valve device (left side among Fig. 1) being called the front side, end plate side (right side among Fig. 1) is called rear side.
＜the 1 embodiment 〉
Fig. 1 represents the section of electromagnetic valve device (hereinafter referred to as solenoid valve).The solenoid valve 1 that the 1st mode of execution relates to is made of solenoid part 10 and guiding valve portion 20 as shown in Figure 1, makes an end of solenoid part 10 carry out ca(u)lk with an end of guiding valve portion 20 and combines, and solenoid part 10 and guiding valve portion 20 are combined into one.
The solenoid part 10 of mode of execution has following component part: the yoke 11 that forms the magnetic material of tubular shell with the level, be embedded on the yoke 11 and form the container (hereinafter referred to as fixed iron core) 12 of hollow shape, in be contained in the yoke 11 and be wrapped in coil 13 around the fixed iron core 12, be contained in the spool 14 in the fixed iron core 12 slidably, the connector portion 15 of on the part of the outer circumferential face of yoke 11, installing, and be configured in the rear of yoke 11 and stop up the end plate 17 of the nonmagnetic substance at solenoid part 10 rear portions.
Yoke 11 forwardly forms with guiding valve portion 20 and carries out the ca(u)lk joint 111 that ca(u)lk links, and has the plate clinch 112 that overlaps mutually with the front face of end plate 17 at the rear portion, wherein is embedded with coil 13.
Fixed iron core 12 forms spool container 121 at the rear portion, forwardly be formed for the flange part 122 that overlaps mutually in the end of guiding valve portion 20 sides and solenoid part 10 side end faces of guiding valve portion 20.The outer circumferential face of flange part 122 is embedded in from yoke 11 and extends in the ca(u)lk joint 111 that forms.Ca(u)lk joint 111 extends to till the outer circumferential face of end face of guiding valve portion 10, carries out ca(u)lk by the outer circumferential face with the end face of guiding valve portion 10 and connects, and is combined into one with guiding valve portion 20.Moreover, be embedded with spool 14 slidably in the spool container 121 of fixed iron core 12, and the ear end face of spool container 121 is rearward outstanding from the plate clinch 112 of yoke 11, is embedded in the end plate 17.
And spool 14 is configured in the spool container 121 of fixed iron core 12, and the excitation by coil 13 slidably and forms and axially goes up the not shown fluid passage that connects.And, the end overlap joint of the front-end face of spool 14 and pin 16, the other end of pin 16 runs through fixed iron core 12 inside, overlaps mutually with guiding valve 30.Like this, utilize the slip of spool 14 that pin 16 is moved on the axis direction of solenoid valve 1, spool 30 is moved back and forth on axis direction.
Utilize said structure, when coil 13 energising, magnetic flux flow in yoke 11, fixed iron core 12, the spool 14 and forms magnetic circuit from coil 13, and by pin 16, the direction that makes the left side of spool 14 in Fig. 1 promptly push guiding valve 30 moves.
And if coil 13 is a non-power status, then the magnetic circuit in the spool 14 is disengaged, and the direction that guiding valve 30 is promptly left on the right side in Fig. 1 moves.Thereupon, slide in the right side of guiding valve 30 in Fig. 1.
On the other hand, in the rearward end (right side among Fig. 1) of yoke 11, form long-pending oily portion 19 between yoke 11, fixed iron core 12 end faces and end plate 17, the oil around the solenoid valve 1 is directed to long-pending oily portion 19 by the breathing route 18 that forms on end plate 17.
Breathe route 18 and be configured in the end plate 17, form curved shape so that remove the foreign matter of invading from the outside.And, wish length that this breathing route 18 forms greater than with the suitable length of volume-variation (reduction volume) that is filled in the oil in the fixed iron core 12.
Above-mentioned breathing route 18 in the 1st mode of execution is shown in Fig. 2～3, in forming discoideus end plate 17, have: the outside opening portion 181 that on the outer surface of a side opposite, forms with solenoid part 10, form the inside opening portion 182 of concavity at the internal surface central part of solenoid part 10 sides, and on the inner side surface of end plate 17, form and mutually opposed with the end face of yoke 11 and form the center-aisle 183 of circle-shaped channel form.Center-aisle 183 and inside opening portion 182 are being communicated with by the terminal passageway 184 of straight-line groove shape.When being assembled into end plate 17 on the solenoid part 10, make this terminal passageway 184 be configured in the below of end plate 17, even so that make foreign matter also be difficult to invade in the inside opening portion 182, and wish end plate 17 is assembled into the location status of holding up from the lower direction top of middle passage 183 by embedding part with spool container 121.
Have the micro-gap that oil is passed through between the outer circumferential face of the spool container 121 of inside opening portion 182 and fixed iron core 12, and can be entrenched on the outer circumferential face of spool container 121.And, inside opening portion 182 overlaps mutually with the ear end face that the plate of yoke 11 droops portion 112, and, be fitted to from the outside on spool container 121 outer circumferential faces of fixed iron core 12, and have small gap, between the ear end face of the bottom surface of inside opening portion 182 182a and spool 14, form above-mentioned long-pending oily portion 19.
Be fitted on the spool container 121 of fixed iron core 12 from the outside by inside opening portion 182, thereby on the center-aisle 183 of breathing route 18, between terminal passageway 184 of breathing route 18 and inside opening portion 182, form stepped part 185 end plate 17.Utilize this stepped part 185 to stop foreign matter, prevent that foreign matter from invading in the inside opening portion 182.
On the other hand, guiding valve portion 20 has following component part: sleeve 21 forms the tubular of an end opening, and inner guiding valve 30 is mounted to and can sliding in the axial direction; Helical spring 40, at the front end of sleeve 21 (end of a side opposite) with solenoid part 10 to guiding valve 30 application of forces; And stop bolt 45, carry out threaded joint at an end and the sleeve pipe 21 of sleeve pipe 21, supporting helical spring 40.
On sleeve pipe 21, disposing delivery outlet 22, inlet opening 23, feedback port 24 successively towards solenoid part 10 1 sides, and solenoid part 10 sides in feedback port 24 are disposing the 1st floss hole 26, moreover, side opposite with the solenoid part 10 of delivery outlet 22 is formed with the 2nd floss hole the 27, the 3rd floss hole 28 successively from the direction opposite with solenoid part 10 sides.
On the other hand, on guiding valve 30, formed: the 1st valve portion 31 of minor diameter that is configured in solenoid part 10 sides of feedback port 24, mutually opposed with delivery outlet 22, inlet opening 23 and adjust large diameter the 2nd valve portion 32 of each bore amount, and large diameter the 3rd valve portion 33 mutually opposed with the 3rd floss hole 28 and that open closed the 3rd floss hole 28, and the ear end face of the 1st valve portion 31 is configured to overlap mutually with pin 16.
And, when the 3rd valve portion 33 moving by guiding valve 30, when the 3rd floss hole 28 is opened at leisure, minimizing is 23 oil masses that flow to delivery outlet 22 from the inlet opening, increase the oil mass that flows to the 3rd floss hole 28, on the contrary, when the 3rd valve portion 33 when the direction of closing the 3rd floss hole 28 moves, increase from the inlet opening by 23 oil masses that flow to delivery outlet 22.Moreover, form outstanding axial region 35 at the front end of the 3rd valve portion 33, above-mentioned helical spring 40 is installed in its outside.
Inlet opening 23 can make the working oil of supplying with in the never illustrated oil tank flow into, and can discharge to delivery outlet 22, and delivery outlet 22 externally is communicated with feedback port 24, and a part of working oil of discharging is imported in the feedback chamber 29 from feedback port 24.Feedback chamber 29 is formed between the 1st valve portion 31 of large diameter the 2nd valve portion 32 and minor diameter, so, import to the working oil in the feedback chamber 29, utilizing the area difference between the 1st valve portion 31 of large diameter the 2nd valve portion 32 and minor diameter, is large diameter valve portion 32 sides that guiding valve 30 is pressed to the place ahead (left side among Fig. 1).
So guiding valve 30 is still in upper/lower positions: promptly the spool 14 in the active force of helical spring 40, the solenoid part 10 is attracted and pushes the power of guiding valve 30 and utilize the oil pressure that feeds back chamber 29 to push the position of the mutual balance of power of guiding valve 30.
The below effect of the solenoid valve 1 of explanation said structure.
At first, if the coil 13 in the solenoid part 10 is non-power status, then spool 14 does not push the power of guiding valve 30, so the power that guiding valve 30 is still in the active force of helical spring 40 and the working oil pushing guiding valve 30 of feedback in the chamber 29 reaches the position of balance.That is to say, under this state, the 2nd valve portion 32 moves to the position that inlet opening 23 and delivery outlet 22 can be communicated with, 23 working oil that flow into flow into the flow increase of delivery outlet 22 from the inlet opening, and, the 3rd exhaust port 28 is closed by the 3rd valve portion 33, so the oil mass that flows to circuit (for example automatic transmission of vehicle) side from delivery outlet 22 reaches maximum.
On the other hand, in feedback chamber 29, from the working oil that the line side flows into, sneak into the foreign matters such as abrasive flour of the gear of working in the automatic transmission for example.Because feedback chamber 29 is under the high pressure, so a part of working oil and foreign matter flow into the 1st valve portion 31 sides together.
Between the inner peripheral surface of the 1st valve portion 31 and sleeve pipe 21, have the small chimeric gap that the 1st valve portion 31 is slided, flow into by this chimeric gap so be attended by a part of working oil of foreign matter.But, between the 1st valve portion 31 and solenoid part 10, formed the 1st floss hole 26 that on sleeve pipe 21, forms, so, configured port under the court, so that make by the foreign matter between the 1st valve portion 31 outer circumferential faces and sleeve pipe 21 inner peripheral surfaces and be discharged to the outside from the 1st floss hole 26, foreign matters enters the linear electromagnetic coil inside.
When coil 13 energising, in yoke 11, fixed iron core 12, spool 14, flow through magnetic flux and form magnetic circuit.Like this, spool 14 with respect to the left of fixed iron core 12 in Fig. 1 to moving, make guiding valve 30 overcome helical spring 40 active force and left direction move.
The active force, the oil pressure of feedback in the chamber 29 that guiding valve 30 is still in helical spring 40 reaches on the position of balance the pushing force of 14 pairs of guiding valves 30 of spool that the magnetic attraction of the pushing force of guiding valve 30 and solenoid part 10 causes.
In these position the 2nd valve portion 32 actions, it reduces the amount of 23 working oil that flow through from the inlet opening, and increases from the amount of the working oil of the 3rd floss hole 28 discharges, so reduce the operating oil pressure that flows to load side from delivery outlet 22.
On the other hand, flow into the oil that feeds back chamber 29 and be discharged to the outside from the 1st floss hole 26.
Simultaneously, be deposited in the oil of the exterior circumferential of the yoke 11 in the solenoid part 10, owing to spool 14 left the volumes cause in the spool container 121 that move of direction change, pressure is reduced, like this, outside oil imports in the long-pending oily portion 19 by the breathing route 18 of end plate 17, and adds in the spool container 121.
When owing to the on-off action of solenoid part 10 foreign matter being invaded in solenoid part 10 from the breathing route 18 of oil, foreign matter can not invade in the long-pending oily portion 19 in the yoke 11 below sinking in the crooked circuit of breathing route 18.
That is to say that the oil that imports from the outside of solenoid part 10 is invaded from the outside opening portion 181 of end plate 17, and by middle circuit 138.At this moment, middle circuit 183 forms the circle-shaped groove portion that is configured on end plate 17 inner side surfaces (solenoid part 10 sides), so, the foreign matter of having invaded will from yoke 11 with the opposed position of plate clinch 112 ear end faces, invade in the inside opening portion 182 behind the outer circumferential face of the spool container 121 by fixed iron core 12 again.
The chimeric gap of the spool container 121 of end plate 17 and fixed iron core 12, the size of formation be make oil can by and foreign matter is difficult to pass through, so foreign body retention can not forwards be invaded in this chimeric gap.Moreover spool container 121 is formed by magnetic material, and the foreign matter majority is an abrasive flour, is that ferrous material constitutes, so the excitation foreign matter by coil 13 can be adsorbed on the outer circumferential face of spool container 121.At this moment,, also can in spool container 121, produce remanent magnetism, make foreign matter remain on absorbed state even the excitation of coil 13 is eliminated.
This is breathed in the route 18, and it is very important that the part from outside opening portion 181 to inside opening portion 182 forms curved shape, owing to be curved shape, so foreign matter precipitates easily.In the 1st mode, when from the immersion of the oil of outside when outside opening portion 181 arrives the inner side surface of end plates 17, become half cycle and form the center-aisle 183 of labyrinth-like by general arrangement, import to inside opening portion 182 from terminal passageway 184.When oil immersion is gone into, invade the route of the foreign matter of breathing route 17, when advancing, center-aisle 183 forming bending from outside opening portion 181, own crooked by center-aisle 183, further, when advancing, straight terminal passageway 184 forming bending from middle passage 183, and, when advancing, inner opening portion 182 forms bending at embedding part from spool container 121, through many crooked positions, thus, precipitate at each curved part, and spool container 121 absorption by fixed iron core 12 can not arrive in the inside opening portion 182.
And breathing route 18 also can not be above-mentioned form, but other forms.For example, under the situation of breathing route shown in Figure 2, center-aisle 183 forms the semi-circumference shape, also can be that the center-aisle 183 of semi-circumference shape forms meander-shaped.
In addition, shown in Fig. 4～5, breathing route 18 also can have: the 182A of inside opening portion that forms concavity at the internal surface central part of end plate 17, with the outer surface of end plate 17 in than being formed on the 181A of outside opening portion that the 182A of inside opening portion on the internal surface is positioned at lower position, and pass end plate 17 backs form the straight-line groove shape towards the 182A of inside opening portion center-aisle 183A from the 181A of outside opening portion.Under this state, externally between opening portion 181A and the center-aisle 183A, between center-aisle 183A and the 182A of inside opening portion, crooked position is formed on the stepped part 185A with the spool container 121 of fixed iron core 12.
Moreover, another breathes route 18B shown in Fig. 6～7, has following various piece: be formed on the 182B of inside opening portion on the inboard central part of end plate 17, be configured on the outer side surface of end plate 17 and be formed on the 181B of outside opening portion on the lower position of the 182B of inside opening portion, the wall portion 186 that is formed on the inner side surface of end plate 17 and around the 182B of inside opening portion, forms with whole circumference shape almost, be connected with the 181B of outside opening portion and be formed on the outer fissure slot part 187 in wall portion 186 outsides, be connected with the outer circumferential face of the 182B of inside opening portion and be formed on the inner wall part 188 of wall portion 186 inboards, be configured on the part of wall portion 186 and make outer fissure slot part 187 and contact channel 189 that septal fossula slot part 188 is communicated with, and be formed on septal fossula slot part 188 in the position of the opposite side in axle center of end plate 17 on and terminal passageway 190 that septal fossula slot part 188B and the 182B of inside opening portion are communicated with.
The channel bottom of inner wall part 188 is more shallow than the bottom surface of inside opening portion, forms center-aisle 183B by outside wall portions 187 and inner wall part 188 and contact channel 189.In addition, contact channel 189 is configured in respect to the axle center of end plate 17 side with the position opposite of the 181B of outside opening portion, and, wish that the width of contact channel 189 forms narrowlyer, so as to make oil by and hinder foreign matter as far as possible and pass through.
So, in this mode, because spool container 121 tablings of 182B of inside opening portion and fixed iron core 12,182B of inside opening portion and septal fossula slot part 188 are cut off, so, if the oil that immerses from the 181B of outside opening portion moves from the inside side of the outer side surface of end plate 17, then enter outer fissure slot part 187 about half cycles after, be immersed in septal fossula slot part 188B from contact channel 189, behind septal fossula slot part 188 about half cycles, arrive the inside opening 188B of portion from terminal passageway 190.
And, because center-aisle 183B forms the labyrinth in the groove portion 187 outside, and form the adsorption section of foreign matters at septal fossula slot part 188, so, in the process that the foreign matter that immerses with oil moves in the groove portion 187 outside, be deposited to the bottom of outer fissure slot part 187, and in contact channel 189, can hinder the immersion in the inside groove portion 188, moreover, enter a part of foreign matter in the septal fossula slot part 188, in septal fossula slot part 188, be attracted on the spool container 121 of fixed iron core 12, and do not arrive the 182B of inside opening portion.
In the solenoid valve 1 of said structure, end plate 17 is formed by nonmagnetic substance, so, forming various forms even breathe route 18, the magnetic circuit that the excitation by coil 13 is produced is formed between yoke 11, fixed iron core 12, the spool 14.When spool 14 moves right, even spool 14 near end plate 17, can not make spool 14 be subjected to effect of magnetic influence on end plate yet, so, adsorption force is shown in the curve of Fig. 8, even also can not reduce significantly in the long position (near the position of end plate 17) of the stroke of spool 14.
As mentioned above, in the solenoid valve 1 of mode of execution, by making coil 13 excitations, form magnetic circuit between yoke 11, fixed iron core 12, spool 14, like this, spool 14 slides to the direction near fixed iron core 12.Owing to spool 14 slides, the fry dried food ingredients that accumulates in the spool container 121 of fixed iron core 12 is given birth to Volume Changes, replenishes from breathing route 18 importings by the position oil on every side that is provided with solenoid valve 1.By this breathing route 18 being formed on the rearward end of solenoid part 10 and end plate 17 that the plate clinch 112 of yoke 11 overlaps mutually, no matter the configuration that is installed in the connector portion 15 on the solenoid part 10 how, all can be configured on the free position breathing route 18.Especially, the terminal passageway that is connected with inside opening portion by handle is configured in the below, and the foreign matter that can prevent to invade terminal passageway can improve adsorption force as shown in figure again to inner opening portion intrusion.
And, at the center-aisle 183 of breathing route 18 crooked road or the embedding part by 2 little members of gap are set, can stop foreign matter like this, prevent that it from invading inside opening portion 182.
Moreover, by form end plate 17 with nonmagnetic substance, even, also can not reduce adsorption force in the long position of the stroke of spool 14.
Claims (6)
1, a kind of electromagnetic valve device, has solenoid part, this solenoid part comprises: utilize the excitation of coil to form the fixed block and the yoke of magnetic circuit, and the excitation that is configured to the to utilize above-mentioned coil movable piece that can slide, on above-mentioned solenoid part, form to absorb the breathing route of the fluid volumes change that produces with respect to the slip of above-mentioned movable piece, it is characterized in that:
Disposing the end plate that is used for inaccessible above-mentioned solenoid part in the end of above-mentioned yoke, on above-mentioned end plate, forming breathing route with external communications;
Above-mentioned breathing route has: in the outside opening portion that the above-mentioned solenoid part outer surface side of above-mentioned end plate forms, and in the inside opening portion that above-mentioned solenoid part inner surface side forms, said external opening portion and above-mentioned inside opening portion are being communicated with by the center-aisle with crooked road.
2, electromagnetic valve device as claimed in claim 1 is characterized in that: the part in above-mentioned crooked road is formed on above-mentioned yoke and on the mating face of the magnetic material container of the tubular that disposes on the inner peripheral surface of above-mentioned yoke.
3, electromagnetic valve device as claimed in claim 2 is characterized in that: the above-mentioned involutory surface that connects forms step-like.
4, as each described electromagnetic valve device in the claim 1,2 or 3, it is characterized in that: above-mentioned center-aisle above-mentioned end plate with opposed of above-mentioned yoke faying surface on form circle-shaped.
5, as each described electromagnetic valve device in the claim 1,2,3 or 4, it is characterized in that: on above-mentioned end plate, on the solenoid part side end face, clip circumferential wall part and form outer circumferential side passage and interior all side canals, and, above-mentioned outer circumferential side passage is being connected by contact channel with interior all side canals, and this contact channel is configured on the position that isolates with the said external opening portion with respect to the axle center of end plate.
6, as each described electromagnetic valve device in the claim 1,2,3,4 or 5, it is characterized in that: above-mentioned end plate forms with nonmagnetic substance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003430472A JP2005188630A (en) | 2003-12-25 | 2003-12-25 | Solenoid valve gear |
| JP430472/2003 | 2003-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1637334A true CN1637334A (en) | 2005-07-13 |
| CN100338385C CN100338385C (en) | 2007-09-19 |
Family
ID=34788836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100816891A Expired - Fee Related CN100338385C (en) | 2003-12-25 | 2004-12-24 | Electromagnetic valve device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005188630A (en) |
| CN (1) | CN100338385C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301167A (en) * | 2010-01-22 | 2011-12-28 | 优尼克株式会社 | Solenoid valve for transmission |
| CN102449362A (en) * | 2009-10-30 | 2012-05-09 | 伊格尔工业股份有限公司 | Solenoid valve |
| CN104040236A (en) * | 2012-01-30 | 2014-09-10 | 博格华纳公司 | Mono bearing one piece core solenoid |
| CN104565500A (en) * | 2014-12-29 | 2015-04-29 | 联合汽车电子有限公司 | Electromagnetic valve with long oil-duct breathing hole |
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| DE10242816B4 (en) * | 2002-09-14 | 2014-02-27 | Andreas Stihl Ag & Co | Electromagnetic valve |
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2003
- 2003-12-25 JP JP2003430472A patent/JP2005188630A/en active Pending
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2004
- 2004-12-24 CN CNB2004100816891A patent/CN100338385C/en not_active Expired - Fee Related
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| CN104040236B (en) * | 2012-01-30 | 2017-05-03 | 博格华纳公司 | Mono bearing one piece core solenoid |
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| CN109477593A (en) * | 2016-07-12 | 2019-03-15 | 加特可株式会社 | Linear solenoid valve |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2005188630A (en) | 2005-07-14 |
| CN100338385C (en) | 2007-09-19 |
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