CN208871126U - Spiral piping arrangement and control valve - Google Patents

Abstract

The utility model provides a kind of spiral piping arrangement and control valve.Spiral piping arrangement includes the shell (16A, 16B) with opening portion (162)；Non magnetic cap (19), it is installed on opening portion (162), and with the blocking portion that falls off (191) for preventing non magnetic cap (19) from falling off from the Inside To Outside of shell (16A, 1B), closed peristome (162)；Bobbin winder bracket (10) around central axis (100)；It is wound in the coil (11) of bobbin winder bracket (10)；Iron core, it, which has, surrounds the cylindrical portion (12A, 12B) of central axis (100) in the inside of bobbin winder bracket (10), and has the bottom (12C) combined with cylindrical portion (12A) along the axial side that central axis (100) extends；And it can be in the plunger (13) that the space on the inside of iron core is axially moveable.

Description

Spiral piping arrangement and control valve

Technical field

The utility model relates to a kind of spiral piping arrangement and control valves.

Background technique

Spiral piping arrangement is to use solenoid coil and drive as the device of the plunger of magnetic substance.For example, line solenoid Cycle basis generates magnetic field in input current.Also, plunger can be along aftermentioned axial movement.Therefore, it is come from if plunger receives The magnetic field of solenoid coil is then magnetized thus towards axial movement.

Spiral piping arrangement can be applied in various systems.For example, in automotive field, in order to drive automatic change Fast machine (automatic transmission, stepless transmission etc.) needs hydraulic.Also, the profit of the driving portion for engine and speed changer etc. Sliding and cooling is also required to generate hydraulic.These are hydraulic by VFS (variable force solenoid, variable force solenoid valve) Equal solenoid valves generate, and spiral piping arrangement is used as a part of solenoid valve.

Spiral piping arrangement plunger preferably from flowing through electric current in solenoid coil is moved to the time until defined position It is short, that is, responsiveness is good.For this purpose, the inner space (plunger compartment) that plunger can be moved and the outside of spiral piping arrangement are in sky Between the upper method connected it is effective.This is because: the discrepancy (being breathed hereinafter, the discrepancy of air is referred to as) of the air due to plunger compartment It facilitates, so the indoor air of plunger will not be caused to be compressed or expanded because of moving for plunger.

But generate following problems: if flow through electric current in coil and generate magnetic field, the axial end and shell of plunger Body contact, then since the influence of plunger and the remanent magnetism of shell leads to the two magnetic suck, responsiveness is deteriorated.On the other hand, additionally it is possible to Spiral piping arrangement is constituted as follows: shortening the circumferential surface length (axial length) of plunger, keeps plunger mobile by magnetic field When, gap is provided between the axial end and shell of plunger.

But if shorten the circumferential surface length of plunger, such as the intracorporal iron core portion of shell from the channel as magnetic field is to column The propagation area reduction that circumferential surface (radial surface) propagates magnetic field is filled in, from the viewpoint of the propagation in magnetic field, responsiveness is deteriorated.And And if the circumferential surface length of plunger shortens, the slidably supported length of plunger shortens, and plunger increases relative to the inclination of central axis Greatly.The inclined increase of the plunger causes to generate in the relationship between the time from flowing through electric current in coil and the position of plunger So-called lag.It is described below about the lag.

It is disclosed in Japanese Unexamined Patent Publication 2005-282632 bulletin a kind of with the column in axial end face with recessed portion The spiral piping arrangement of plug.

Spiral piping arrangement disclosed in Japanese Unexamined Patent Publication 2005-282632 bulletin has plunger and the mutually independent knot of pivot pin Structure.That is, pivot pin is not inserted into the shaft through-hole of plunger.Also, in the technology of patent document 1, that is, allow to by column The recessed portion of plug and reduce the magnetic adsorbability generated between shell and plunger to a certain extent, the circumferential surface length of plunger thus It shortens, therefore the propagation area in magnetic field is also reduced.Therefore, from the viewpoint of the propagation in magnetic field, responsiveness is deteriorated.Also, column The slidably supported length of plug shortens, and plunger increases relative to the inclination of central axis.

Utility model content

The utility model proposes the magnetic sucks that the circumferential surface length that one kind need not shorten plunger is just able to suppress plunger and shell Structure.

Spiral piping arrangement involved in the first illustrative utility model of the application includes shell, with opening portion； Non magnetic cap is installed on the opening portion, has for preventing the non magnetic cap de- from the Inside To Outside of the shell The blocking portion that falls off fallen, and opening portion described in the non magnetic cap closure；Bobbin winder bracket is supported in the shell, tool There is following the first cylinder portion, the first cylinder portion has the first central shaft hole axially；Coil is wound in described The first cylinder portion；Iron core is configured in first central shaft hole, has following the second cylinder portion, described the second cylinder Portion has the second central shaft hole axially；Plunger is made of magnetic substance, is configured at the inside in the second cylinder portion In space, there is the shaft through-hole axially extended, and the plunger can be axially moveable relative to the second cylinder portion； And pivot pin, it is inserted into the shaft through-hole, the axial side of the pivot pin is exposed from the shell.The opening portion is set It is placed in the part opposite with the axial surface of the other side of the direction of the plunger.The plunger farthest in the axial direction In the case that the other side is mobile, the end face of the axial other side of the pivot pin is contacted with the non magnetic cap.

Control valve involved in the second illustrative utility model of the application, comprising: above-mentioned spiral piping arrangement；And Valve body, with valve gear, the valve gear is in conjunction with the spiral piping arrangement, by the pivot pin of the spiral piping arrangement Drive the valve of the valve gear.

According to the first illustrative utility model of the application, it is not necessary to which the circumferential surface length for shortening plunger is just able to suppress plunger With the magnetic suck of shell.

Referring to attached drawing, and by below to the detailed description of preferred embodiments of the present invention, the utility model Above-mentioned and other element, feature, step, features and advantages can become more fully apparent.

Detailed description of the invention

Fig. 1 is the cross-sectional view for showing the first case of spiral piping arrangement.

Fig. 2 is the cross-sectional view for showing the first case of spiral piping arrangement.

Fig. 3 is the figure from axial unilateral observation spiral piping arrangement.

Fig. 4 is the figure from axial unilateral observation iron core.

Fig. 5 is the figure from axial unilateral observation gasket.

Fig. 6 is the figure for showing the variation of gasket.

Fig. 7 is the cross-sectional view for showing the second case of spiral piping arrangement.

Fig. 8 is the figure from axial unilateral observation gasket.

Fig. 9 is the figure for showing the variation of gasket.

Figure 10 is the cross-sectional view for showing the third example of spiral piping arrangement.

Figure 11 is the 4th cross-sectional view for showing spiral piping arrangement.

Figure 12 is the figure for showing the example of combination of plunger and pivot pin.

Figure 13 A is the figure for showing the relationship between the application time in magnetic field and the position of plunger in embodiment.

Figure 13 B is the figure for showing the relationship between the application time in magnetic field and the position of plunger in a comparative example.

Figure 14 is the figure for showing the first case of valve system.

Figure 15 is the figure for showing the second case of valve system.

Figure 16 is the figure for showing the third example of valve system.

Specific embodiment

Hereinafter, being illustrated referring to attached drawing to embodiment.

In addition, in embodiments, for easy understanding illustrating, for the utility model other than major part Structure schematic illustration.Also, in the accompanying drawings, the size of each element, shape, quantity etc. are also an example, are not limited to this The meaning.

Also, it in the following description, axially refers to the direction that central axis extends, radially referring to and central axis Vertical direction.Also, the axial direction indicated with centerline axis parallel, that is, relative to 0 ° of direction of central axis, and also Inclined direction including being greater than 0 ° and the range less than 45 ° relative to central axis.Equally, radial expression and central axis upright Direction, and further include relative to the inclined direction for being greater than 0 ° and the range less than 45 ° with the direction of central axis upright.

Moreover, ground side refers to ground side, top side refers to sky side.For example, on the basis of by the gravity direction of the earth In the case where, ground side is preferably placed at the direction of -45 ° to+45 ° of gravity direction of the range relative to the earth, and top side is preferably placed at The direction of range relative to the direction -45 ° to+45 ° opposite with the gravity direction of the earth.

The first case > of < spiral piping arrangement

Fig. 1 to Fig. 4 shows the first case of spiral piping arrangement.Fig. 1 is another sidesway of plunger farthest in the axial direction State when dynamic.Fig. 2 is the state when side of plunger farthest in the axial direction is mobile.Fig. 3 is from axial unilateral observation The figure of spiral piping arrangement.Fig. 4 is the figure from axial unilateral observation iron core.

Bobbin winder bracket 10 is for example with the cylindrical shape for surrounding central axis 100.Bobbin winder bracket 10 be polyester resin, epoxy resin, The synthetic resin of polytetrafluoroethylene (PTFE) (polytetrafluoroethylene, PTFE) etc..Bobbin winder bracket 10 has the first cylinder Portion, the first cylinder portion have the first central shaft hole axially.Coil (for example, solenoid coil) 11 is wound in bobbin winder bracket 10 the first cylinder portion.Coil 11 is, for example, enameled wire, polyurethane line, the polyester line etc. using resin covering copper wire.

First iron core portion 12A and the second iron core portion 12B are integrally formed into cylindrical shape respectively, and are configured at bobbin winder bracket 10 The first central shaft hole in.First and second iron core portion 12A, 12B has as the second cylinder portion in axially second Arbor hole.Also, the first iron core portion 12A has the mandrel bottom 12C of the second central shaft hole of covering in axial side.Plunger 13 Configuration is in the plunger compartment 132 being made of the second central shaft hole of first and second iron core portion 12A, 12B.Also, plunger 13 With along axially through first through hole 131, and plunger 13 can be axially moveable in plunger compartment 132.

First iron core portion 12A, the second iron core portion 12B, mandrel bottom 12C and plunger 13 are made of magnetic substances such as iron.It is logical Overcurrent flows through coil 11, and coil 11 generates magnetic field.First iron core portion 12A, the second iron core portion 12B, mandrel bottom 12C and column The magnetic field that plug 13 is generated by coil 11 magnetizes.

Here, first and second iron core portion 12A, 12B is for example configured across gap and by made of resin Lantern ring 12D and be combined with each other.That is, lantern ring 12D integrally has cylindrical shape, make the first iron core portion 12A and the second iron core portion 12B The two is combined in the state of positioning.Further, first and second iron core portion 12A, 12B is supported and is fixed by shell 16A, 16B.

But shell 16A, 16B are in the same manner as first and second iron core portion 12A, 12B, are the magnetic substances such as iron.This be for The channel in the magnetic field for making shell 16A, 16B as coil 11 and generating functions.In this case, following problems are generated: Because of plunger 13 and the remanent magnetism of shell 16B, when making plunger 13 start mobile, plunger 13 is magnetically attached to shell 16B.

Therefore, shell 16B has opening portion 162 in the part opposite with the axial face of the other side of the direction of plunger 13. Opening portion 162 is, for example, the round shape opening portion centered on aftermentioned pivot pin 14.It is major diameter that opening portion 162, which has axial side, Opening stage portion 163.Further, non magnetic cap 19 is, for example, and is formed from a resin, and pacifies from the inside of shell 16B towards outside Dress, closed peristome 162.

As shown in Figure 1, therefore, even if mobile in the other side of plunger 13 farthest in the axial direction, and plunger 13 most connects In the case where nearly shell 16B, adjacent with plunger 13 is also non magnetic cap 19, will not generate magnetic attraction therebetween.And And since the area on the side of plunger 13 (radial surface) not will receive the influence of opening portion 162 and non magnetic cap 19, because This, which is substantially ensured from first and second iron core portion 12A, the 12B in the channel for becoming magnetic field to the side of plunger 13, propagates magnetic field Propagate area.

In this way, the responsiveness of the spiral piping arrangement of this example improves from the point of view of the two viewpoints of the propagation in magnetic suck and magnetic field. Also, since the circumferential surface length of plunger 13 will not shorten, plunger 13 will not be tilted relative to central axis 100, from Coil 11 flows through the lag generated in the relationship between the time that electric current rises and the position of plunger and also sufficiently becomes smaller.Later to this It describes (3A referring to Fig.1).

Further, non magnetic cap 19 has for preventing non magnetic cap 19 to the blocking portion that falls off to fall off on the outside of shell 16B 191.The blocking portion that falls off 191 is, for example, the convex edge that the diameter of the axial side of non magnetic cap 19 radially extends.It is non magnetic Cap 19 is installed on shell by being overlapped in the axial direction as the convex edge for the blocking portion 191 that falls off with the stage portion 163 of opening portion 162 Body 16B.

Further, non magnetic cap 19 passes through the stage portion that opening portion 162 is clamped in as the convex edge for the blocking portion 191 that falls off 163 and second between iron core 12B, are supported in shell 16B.Therefore, even if the end of the axial other side of aftermentioned pivot pin 14 Face is contacted with non magnetic cap 19, and non magnetic cap 19 will not fall off from shell 16B.Further, though plunger 13 farthest In the case that the other side in the axial direction is mobile, since the end face of the axial other side of pivot pin 14 is contacted with non magnetic cap 19, because This can prevent the plating exfoliation of plunger 13.

In addition, opening portion 162 and non magnetic cap 19 in addition to by stage portion 163 and convex edge prevent the structure to fall off it Outside, side that opening portion 162 can also be formed as to axial is the skewed of major diameter, and non magnetic cap 19 is formed as axial one Side is major diameter, the inclined shape of circumferential surface, and the diameter of the axial side of non magnetic cap 19 is made to be greater than the straight of the other side of opening portion Diameter prevents from falling off on the outside of from the non magnetic cap 19 that the inside of shell 16B is installed to shell 16B.

In addition, shell 16A, 16B have flange part 161.Flange part 161 for example has when spiral piping arrangement group is entered system Help the facilitation of assembling.Also, seal member 101 is, for example, O-ring.Seal member 101 by bobbin winder bracket 10 and shell 16A, It is sealed between 16B.

Mandrel bottom 12C has recess portion 121 in the axial other side.Also, mandrel bottom 12C has in radial ground side It is penetrated through from outside to the second through-hole 120 of recess portion 121 along axial direction.Gasket 15 is by circular recess portion 121 as circular sky The face of the axial other side of mandrel bottom 12C is close to and is fixed on to gap.Gasket 15 covers recess portion from the inside of spiral piping arrangement 121。

Gasket 15 is, for example, the nonmagnetic materials such as polyester resin, epoxy resin, PTFE.If gasket 15 is nonmagnetic material, Gasket 15 will not be magnetized from the magnetic field of coil 11.Therefore, the movement of plunger 13 will not be limited by gasket 15.

Gasket 15 is in the side opposite with the second through-hole 120 relative to central axis 100, that is, radial top side, which has, to be connected Connect the interconnecting piece 151 of recess portion 121 Yu plunger compartment 132.For example, as shown in figure 5, the interconnecting piece 151 of gasket 15 is, for example, to connect Hole.If interconnecting piece 151 is connecting hole, the symmetry with the second through-hole 120 is ensured.The symmetry, which has, fills solenoid The breathing set smoothly effect.

But as long as interconnecting piece 151 can connect recess portion 121 and plunger compartment 132, it is not limited to connecting hole.

Gasket 15 is for example with ring-shaped.Gasket 15 preferably has in order to ensure the breathing path from ground side towards top side Cover the identical shape of the opening portion of recess portion 121.Ring of the gasket 15 for example with the inner surface for being set to the first iron core portion 12A Shape fitting portion 152 is chimeric.Annular fitting part 152 is, for example, the step or slot for being set to the face of inside of the first iron core portion 12A.

As shown in fig. 6, gasket 15 for example has flat part 153 with axially vertical radial outside.Flat part 153 is For accurately carry out gasket 15 it is chimeric with the first iron core portion 12A when alignment element.For example, the flat part 153 can be quasi- Really by the second through-hole 120 in alignment with ground side, by interconnecting piece 151 in alignment with top side.In this case, if the second through-hole 120 and interconnecting piece 151 to be located relative to central axis 100 be in 180 ° of positional relationship, then prevent pollutant from entering to greatest extent In plunger compartment 132.

Also, flat part 153 has after gasket 15 is chimeric with annular fitting part 152, and gasket 15 is fixed on the first iron The effect of core 12A.That is, gasket 15 will not be rotated centered on central axis 100.Thus, for example, set gasket 15 it The second through-hole 120 is also maintained to be located at ground side always afterwards, interconnecting piece 151 is located at the positional relationship of top side.

First through hole 131, the second through-hole 120 and recess portion 121 are the breathings for spiral piping arrangement and are arranged.That is, First through hole 131, the second through-hole 120 and recess portion 121 improve the responsiveness of spiral piping arrangement.

Recess portion 121 is configured around central axis 100.Recess portion 121 is for example with ring-shaped.In this case, path is breathed For following two: passing through the left side of recess portion 121 from the second through-hole 120 and reach the path of interconnecting piece 151, from the second through-hole 120 The path of interconnecting piece 151 is reached across the right side of recess portion 121.Therefore, the breathing of spiral piping arrangement further facilitates, response Property further increases.

It is preferred that first through hole 131 is configured at relative to the side identical with the second through-hole 120 of central axis 100.This In the case of, for example, the second through-hole 120 is configured at ground side, interconnecting piece 151 is configured at top side, moreover, first through hole 131 is configured at Ground side.This means that the quantity of the crank (crank) in the breathing path as spiral piping arrangement increases.Therefore, even if pollutant Into in plunger compartment 132, pollutant is also difficult to be diffused into 132 entirety of plunger compartment.That is, the reliability of spiral piping arrangement further mentions It is high.

Also, relative to the side identical with the second through-hole 120 of central axis 100, that is, ground side, mandrel bottom 12C With the gap between gasket 15, such as recess portion 121 radial outside end be located at than the second through-hole 120 lean on radial outside position Set place.In this case, in the gap as breathing path, such as so-called pollutant bag 122 is provided in recess portion 121. Pollutant bag 122 has the effect of accumulating the pollutant entered from the second through-hole 120 in spiral piping arrangement in advance.

For example, it is not moved to the interconnecting piece 151 positioned at top side from the pollutant that the second through-hole 120 enters in recess portion 121, and It is because random packing under gravity is in the end of ground side, that is, the end of the radial outside of recess portion 121.At this point, pollutant bag 122 if it does not exist, Then by the flowing of gas (for example, air) from the second through-hole 120 to recess portion 121 or liquid (for example, oil) from, the dirt of accumulation Dye object again moves into top side.Sometimes a large amount of pollutant is spread in recess portion 121, a portion via interconnecting piece 151 into Enter in plunger compartment 132.

In contrast, pollutant bag 122 has at the position with the flow separation of gas or liquid in recess portion 121 Accumulate the function of pollutant.Therefore, the pollutant that will not be deposited in pollutant bag 122 is spread in recess portion 121, and The case where again moving into top side.That is, the inlet regardless of pollutant, pollutant bag 122 is all effectively prevented pollutant Into in plunger compartment 132.

Pivot pin 14 can follow moving and being axially moveable for plunger 13.As long as pivot pin 14 can follow the shifting of plunger 13 It moves and is axially moveable, it will be able to easily obtain the output of spiral piping arrangement as the amount of movement of pivot pin 14.At this In the case of kind, the operation that spiral piping arrangement group enters the systems such as valve system is facilitated.

Pivot pin 14 is, for example, the nonmagnetic materials such as stainless steel.Pivot pin 14 is for example inserted into plunger 13 and solid in the axial direction Due to plunger 13.As long as plunger 13 is integrated with pivot pin 14, it will be able to make the movement of plunger 13 and the movement complete one of pivot pin 14 It causes.

In addition, the axial side of pivot pin 14 is exposed from shell 16A, 16B.Also, the axial side of pivot pin 14 can also Can be protruded from shell 16A, 16B.For example, when the other side of plunger 13 farthest in the axial direction is mobile, for example, as schemed Shown in 1, pivot pin 14 is accommodated in the inside of shell 16A, 16B.Also, it is mobile in the side of plunger 13 farthest in the axial direction When, for example, as shown in Fig. 2, pivot pin 14 is prominent from shell 16A, 16B.

Also, the position of the end face of the axial other side of the position and plunger 13 of the end face of the axial other side of pivot pin 14 Identical or end face positioned at the axial other side than plunger 13 is set by the position of the axial other side.

As described above, according to the first case of spiral piping arrangement, gasket 15 is in the axial other side of mandrel bottom 12C Ensure the space of recess and the mode for covering the axial other side of mandrel bottom configures.That is, in gasket 15 and mandrel bottom 12C Between be provided with breathing path.The breathing path is, for example, the open side of recess portion 121 by the closed structure of gasket 15.Also, iron Core bottom 12C has the second through-hole 120 from external perforation to breathing path in radial ground side.Also, gasket 15 is in radial direction Top side have interconnecting piece 151.

Therefore, the outside Yu plunger compartment 132 of spiral piping arrangement is by by the second through-hole 120, recess portion 121 and interconnecting piece The 151 breathing paths constituted mutually spatially connect.Also, the breathing path is in crank-like.It in this case, such as can Enough ensure the breathing of spiral piping arrangement, improves responsiveness, and pollutant can also be prevented to be externally entering.This is because from The direction of two through-hole 120 towards interconnecting pieces 151 is the direction opposite with gravity, that is, from ground side towards the direction of top side.This In the case of, even if pollutant enters recess portion 121 from the second through-hole 120, which is also difficult to reach interconnecting piece because of self weight 151, and then will not enter in plunger compartment 132.

In this way, can not only prevent from entering pollutant from the outside of spiral piping arrangement according to the first case of spiral piping arrangement, The responsiveness of spiral piping arrangement can also be improved.

It, can from preventing from the viewpoint of entering pollutant and responsiveness also, in the first case of spiral piping arrangement Above-mentioned effect is obtained, and effect below can also be obtained on this structure.

The recess portion 121 in the breathing path as spiral piping arrangement is towards the inside of spiral piping arrangement, that is, plunger compartment 132 Side.This means that gasket 15 does not expose to the outside of spiral piping arrangement.Gasket 15 is usually by polyester resin, epoxy resin, PTFE Equal non-magnetic materials are constituted.These non-magnetic materials are thin and impact resistance is weak.Therefore, gasket 15 is set to the interior of spiral piping arrangement For the structure of side in order to protect gasket 15 not to be impacted, the reliability aspect for improving spiral piping arrangement is highly effective.

And according to the first case of spiral piping arrangement, face phase of the shell 16B in the other side axial with the direction of plunger 13 Pair part have opening portion 162, non magnetic 19 closed peristome 162 of cap.Therefore, even if in plunger 13 farthest to axis To the other side it is mobile in the case where, adjacent with plunger 13 is also non magnetic cap 19, will not generate magnetic attachment therebetween Power.Further, it since the circumferential surface length of plunger 13 will not shorten, therefore substantially ensures from first and second iron core portion 12A, 12B The propagation area in magnetic field is propagated to the side of plunger 13.

Therefore, from the point of view of the two viewpoints of the propagation in magnetic suck and magnetic field, the responsiveness of the spiral piping arrangement of this example is improved. Also, since the circumferential surface length of plunger 13 will not shorten, plunger 13 will not be tilted relative to central axis 100, from The lag generated in the relationship between the time that electric current rises and the position of plunger is flowed through in coil 11 also sufficiently to become smaller.

Further, non magnetic cap 19 has the blocking portion 191 that falls off, and the blocking portion 191 that falls off is from the inside of shell 16B outside Side installation, for preventing non magnetic cap 19 to falling off on the outside of shell 16B.That is, non magnetic cap 19 passes through as the blocking portion that falls off 191 convex edge is overlapped in the axial direction with the stage portion of opening portion 162, is installed on shell 16B.In this case, due to making It is clamped between the stage portion of opening portion 162 and the second iron core 12B for the convex edge for the blocking portion 191 that falls off, therefore even if axis The end face of the axial other side of pin 14 is contacted with non magnetic cap 19, and non magnetic cap 19 will not fall off from shell 16B.

The second case > of < spiral piping arrangement

Fig. 7 shows the second case of spiral piping arrangement.When Fig. 7 is that the other side of plunger farthest in the axial direction is mobile State.

Second case is the first case (variation of Fig. 1 to Fig. 6).

Therefore, in second case, it is omitted specifically and to element identical with first case imparting identical symbol It is bright.

Compared with first case, second case has feature in the structure of gasket 15 and interconnecting piece 151.For example, such as Fig. 8 institute Show, gasket 15 has notch section in radial top side.The notch section is after gasket 15 is in conjunction with the first iron core portion 12A as company Socket part 151 plays a role.In this case, interconnecting piece 151 becomes the gap between the first iron core portion 12A and gasket 15.

If interconnecting piece 151 is the gap between the first iron core portion 12A and gasket 15, interconnecting piece 151 can be configured at The position near top side in recess portion 121.In this case, most due to the distance from the second through-hole 120 to interconnecting piece 151 Greatly, therefore pollutant is difficult to travel further into plunger compartment 132.

In addition, for example as shown in figure 9, gasket 15 can also have flat part 153 with axially vertical radial outside.It is flat Smooth portion 153 is the element for accurately carrying out the alignment of gasket 15 as illustrated in first case.Therefore, second Also the second through-hole 120 is maintained to be located at ground side in example always, interconnecting piece 151 is located at the positional relationship of top side.

As described above, also can be improved the responsiveness and reliability of spiral piping arrangement in second case.

The third example > of < spiral piping arrangement

Figure 10 shows the third example of spiral piping arrangement.When Figure 10 is that the other side of plunger farthest in the axial direction is mobile State.

Third example is also the first case (variation of Fig. 1 to Fig. 6).

Therefore, in third example, it is omitted specifically and to element identical with first case imparting identical symbol It is bright.

Compared with first case, third example has feature in the structure of the first iron core portion 12A Yu the engaging portion of gasket 15.Example Such as, the first iron core portion 12A has the annular fitting part 152 being fitted into for gasket 15.But differently with first case, the ring-type is embedding Conjunction portion 152 is the circular slot for being set to the face of the inside of the first iron core portion 12A.

In this case, chimeric with annular fitting part 152 by gasket 15, gasket 15 is fixed on the first iron core portion 12A.Also, for example, as shown in fig. 6, if gasket 15 has flat part 153, during gasket 15 will not be with central axis 100 Heart rotation.Therefore, also maintained always after setting gasket 15 such as the second through-hole 120 be located at ground side, interconnecting piece 151 Positional relationship in top side.

As described above, also can be improved the responsiveness and reliability of spiral piping arrangement in third example.

4th > of < spiral piping arrangement

Figure 11 shows the 4th of spiral piping arrangement.When Figure 11 is that the other side of plunger farthest in the axial direction is mobile State.

4th be third example (Figure 10) variation.

Therefore, in the 4th, it is omitted specifically and to element identical with third example imparting identical symbol It is bright.

Compared with third example, the 4th is tied with gasket 15 by so-called snap fit features in the first iron core portion 12A Conjunction on this point have feature.For example, gasket 15 has hook portion.Also, annular fitting part 152 is to be set to the first iron core portion The recess of 12A, and there is the tight lock part for being fixed with hook portion.

In this case, chimeric with annular fitting part 152 by gasket 15, gasket 15 is secured entirely on the first iron core portion 12A.That is, gasket 15 will not be rotated centered on central axis 100.Therefore, example is also maintained always after setting gasket 15 As the second through-hole 120 be located at side, interconnecting piece 151 be located at the positional relationship of top side.

As described above, also can be improved the responsiveness and reliability of spiral piping arrangement in the 4th.

Relationship > between < plunger and pivot pin

In first to fourth of spiral piping arrangement, (for Fig. 1 into Figure 11), plunger 13 is integrated with pivot pin 14.In this feelings Under condition, the movement of plunger 13 and the movement of pivot pin 14 can be made completely the same, to further increase the response of spiral piping arrangement Property.

Figure 12 shows example of the plunger in conjunction with pivot pin.

In the case where plunger 13 and 14 one of pivot pin, preferred plunger 13 is for example mutually tied by calking with pivot pin 14 It closes.This is because calking can simply and at low cost combine the two.

In this case, plunger 13 have along axially through shaft through-hole 141.It is preferred that shaft through-hole 141 is for example set to The center of plunger 13, that is, configured centered on central axis 100.

Also, pivot pin 14 has recess portion in the circumferential direction around pivot pin 14.It is preferred that the recess portion of pivot pin 14 is for example set to week To entirety, that is, one week 360 ° of entirety.Also, a part of calking of plunger 13 is in the recess portion of pivot pin 14 (by calking portion).

Calking portion 1331 can for example be formed by formed punch 17.Formed punch 17 has the end of cone cell.The end of cone cell is used for Make a part deformation of plunger 13 and plunger 13 is fixed on pivot pin 14.For example, as shown in the drawing, pivot pin 14 is inserted into column In the shaft through-hole 141 of plug 13.In this state, it is positioned in such a way that the corner of plunger 13 is corresponding with the recess portion of pivot pin 14, and The two is temporarily fixed up.Then, by making formed punch slide axially, the end of the cone cell of formed punch 17 and the angle of plunger 13 Portion's collision.

As a result, forming calking portion 1331 in the recess portion of the corner insertion pivot pin 14 of plunger 13.

The improvement > of < lag

Figure 13 A shows the relationship between the position (stroke) of the application time and plunger in magnetic field in embodiment.Figure 13B shows the relationship between the position (stroke) of the application time and plunger in magnetic field in a comparative example.

Herein, embodiment is referred in first to fourth (spiral piping arrangement illustrated in Fig. 1 to Figure 11).Further, than Refer to not having first to fourth (Fig. 1 to the opening portion of Figure 11) 162 and the spiral piping arrangement of non magnetic cap 19 compared with example. Also, L0 be plunger compartment's inner plunger 13 be moved to it is axial near the other side when position.L1 is in plunger compartment's inner plunger 13 Be moved to it is axial near side when position.

In embodiment and comparative example, in certain period tdelay, tdelay after coil 11 generates magnetic field ', The position of plunger 13 does not change.But the tdelay ' of tdelay ratio in a comparative example in embodiment is short.This be because Are as follows: as described above, in embodiment, the magnetic attraction that plunger 13 receives from shell 16B is small compared with comparative example.

Therefore, plunger 13 is moved to the total ascent time t01 of axial side L1 from axial other side L0 in embodiment It is shorter than the total ascent time t01 ' that plunger 13 in a comparative example is moved to axial side L1 from axial other side L0.This means that Responsiveness of the responsiveness of spiral piping arrangement involved in embodiment better than spiral piping arrangement involved in comparative example.

In addition, in embodiment plunger 13 from axial side L1 be moved to the time t10 of axial other side L0 with The time t10 ' that plunger 13 is moved to axial other side L0 from axial side L1 in comparative example is identical.This is because: for From axial side L1 to the movement of axial other side L0, the magnetic adsorbability between plunger 13 and shell 16B is not a problem.

As a result, with the lag in comparative example, that is, the relationship (figure between the application time in magnetic field and the position of plunger It 13B) compares, the lag in embodiment, that is, the relationship (Figure 13 A) between the application time in magnetic field and the position of plunger is changed It is kind.

< application examples >

Above-mentioned spiral piping arrangement can be applied in the various systems such as control pressurer system.For example, in automobile It is hydraulic in order to drive automatic speed variator (automatic transmission, stepless transmission etc.) to need in field.Also, in order to engine with And the driving portion of speed changer etc. lubrication and it is cooling be also required to generate it is hydraulic.These are hydraulic to generate by solenoid valve, helical Pipe device is used as a part of solenoid valve.

It can be using the example of the valve system of above-mentioned spiral piping arrangement hereinafter, explanation is several.

The first case > of < valve system

Figure 14 shows the first case of valve system.

First case is about solenoid valves such as VFS.

Valve system has spiral piping arrangement 20 and valve gear 30.Spiral piping arrangement 20 is, for example, to illustrate in Fig. 1 into Figure 12 Spiral piping arrangement.Valve gear 30 has the slide valve 31 that is combined and can be axially moveable with spiral piping arrangement 20, and valve Device 30 opening and closing of control valve 32A, 32B, 32C, 32D, 32E according to the amount of movement of slide valve 31.

Valve 32A, 32B, 32C, 32D, 32E include the input port 32A inputted to input pressure (hydraulic)；To defeated The output port 32B that pressure (hydraulic) is exported out；The feedback port 32C of input feedback pressure；In discharging valve device 30 The discharge port 32D of extra oil；And oily supply port 32E of the supply for the oil of lubrication into spiral piping arrangement 20.

Relationship between input pressure and output pressure changes according to the position of slide valve 31.That is, being permanent in input pressure In the case where constant-pressure, for example, be from oil pump supply it is hydraulic in the case where, output pressure can on the basis of input pressure and The pressure lower than input pressure or the pressure higher than input pressure are accordingly arbitrarily generated with the position of slide valve 31.

Feedback pressure is, for example, the pressure of feedback output pressure, with output pressure equivalence.Feedback pressure is input to feedback The reasons why port 32C is the fluctuation of output pressure in order to prevent, that is, prevents oily vibration.

Valve gear 30 also has the force application part (for example, spring) 33 of the other side force by slide valve 31 in the axial direction.

For example, being in original state (non-action status) in spiral piping arrangement 20, that is, electric current does not flow through solenoid coil In the case where, the active force of force application part 33 exerts a force the other side of slide valve 31 and pivot pin 14 in the axial direction.

The state is shown in the top half of the figure.As clearly shown in the top half of the figure, at spiral piping arrangement 20 In the case where original state, input port 32A and output port 32B are mutually cut off by the wall of slide valve 31.Also, valve fills The extra oil set in 30 is discharged from discharge port 32D.

In contrast, for example, being in action state in spiral piping arrangement 20, that is, flow through the feelings of electric current in solenoid coil Under condition, the magnetic field that solenoid coil generates generates the mobile power for keeping the side of plunger i.e. pivot pin 14 in the axial direction mobile.Therefore, if The movement power is bigger than the active force of force application part 33, then the side of pivot pin 14 in the axial direction is mobile.Also, slide valve 31 also follows pivot pin 14 movement and side in the axial direction is mobile.

The state is shown in the lower half portion of the figure.As clearly shown in the lower half portion of the figure, at spiral piping arrangement 20 In the case where action state, input port 32A and output port 32B are connected with each other via the slot of slide valve 31.Also, oil warp Spiral piping arrangement 20 is supplied to by oily supply port 32E.

Here, as described above, spiral piping arrangement 20 the second through-hole 120 relative to central axis 100 be configured at ground side, and Interconnecting piece 151 is configured in the state of top side relative to central axis 100 and is combined with valve gear 30.Therefore, in such valve system In system, even if containing pollutant from the oil that oily supply port 32E is supplied in spiral piping arrangement 20, pollutant will not enter In the plunger compartment of spiral piping arrangement 20.

As described above, the responsiveness of valve opening and closing is good, and can be effectively prevented pollution according to the first case of valve system Object enters spiral piping arrangement from valve gear.

The second case > of < valve system

Figure 15 shows the second case of valve system.

Control valve of the second case about control variable-speed motor.

Valve system includes variable-speed motor 40；Generate the hydraulic control valve body 41 controlled variable-speed motor 40；It will regulation Hydraulic oil is supplied to the oil pump 42 of control valve body 41；And accumulate the food tray 43 of oil in advance.

Solenoid valve is installed on control valve body 41.Solenoid valve based on from the hydraulic of oil pump 42 and generate to variable-speed motor 40 controlled it is hydraulic.Solenoid valve is, for example, the solenoid valve of Figure 14, and has spiral piping arrangement 20 and valve gear 30.

In such valve system, it is necessary to accurately control multiple hydraulic, while the valve system that must adequately protect is not by oil The damage of the pollutant (metal powder, oxidation deterioration object, dust etc.) contained.

In this example, as described above, there is spiral piping arrangement 20 pollutant to be not easily accessible the indoor structure of plunger (referring to figure 14).Therefore, according to the valve system of this example, it can not only prevent the pollutant in oil from entering in plunger compartment, additionally it is possible to accurately control It makes multiple hydraulic.That is, due to the breathing that can be sufficiently carried out spiral piping arrangement, the responsiveness of the valve opening and closing in valve system It improves.This means that accurately and at high speed generating multiple hydraulic.

As described above, the responsiveness of valve opening and closing is good, and can be effectively prevented pollution according to the second case of valve system Object enters spiral piping arrangement from valve gear.

The third example > of < valve system

Figure 16 shows the third example of valve system.

Third example can be installed on the pressure to liquid or gas about spiral piping arrangement, such as hydraulic be controlled The valve system of valve body.

Valve system has spiral piping arrangement 20 and valve body 50.Spiral piping arrangement 20 is, for example, Fig. 1 to spiral shell illustrated in fig. 12 Wire tube device.Spiral piping arrangement 20 is for example fixed on valve body 50 by screw 162.Screw 162 is for example installed on spiral piping arrangement 20 flange part 161.

Valve body 50 has the slide valve 51 that can be axially moveable, and according to the amount of movement of slide valve 51 and control valve 52A, The opening and closing of 52B, 52C, 52D, 52E.

Valve 52A, 52B, 52C, 52D, 52E include the input port 52A inputted to input pressure (hydraulic)；To defeated The output port 52B that pressure (hydraulic) is exported out；The feedback port 52C of input feedback pressure；It will be extra in valve body 50 Oil discharge discharge port 52D；And oily supply port 52E of the supply for the oil of lubrication into spiral piping arrangement 20.

Relationship between input pressure and output pressure changes according to the position of slide valve 51.That is, being permanent in input pressure In the case where constant-pressure, for example, be from oil pump supply it is hydraulic in the case where, output pressure can on the basis of input pressure and The pressure lower than input pressure or the pressure higher than input pressure are accordingly arbitrarily generated with the position of slide valve 51.

Feedback pressure is, for example, the pressure of feedback output pressure, with output pressure equivalence.Feedback pressure is input to feedback The reasons why port 52C is the fluctuation of output pressure in order to prevent, that is, prevents oily vibration.

Valve body 50 also has the force application part (for example, spring) 53 of the other side force by slide valve 51 in the axial direction.

For example, being in original state (non-action status) in spiral piping arrangement 20, that is, electric current does not flow through solenoid coil In the case where, the active force of force application part 53 exerts a force the other side of slide valve 51 and pivot pin 14 in the axial direction.

The state is shown in the top half of the figure.As clearly shown in the top half of the figure, at spiral piping arrangement 20 In the case where original state, input port 52A and output port 52B are mutually cut off by the wall of slide valve 51.Also, valve body Extra oil in 50 is discharged from discharge port 52D.

In contrast, for example, being in action state in spiral piping arrangement 20, that is, flow through the feelings of electric current in solenoid coil Under condition, the magnetic field that solenoid coil generates generates the mobile power for keeping the side of plunger i.e. pivot pin 14 in the axial direction mobile.Therefore, if The movement power is bigger than the active force of force application part 53, then the side of pivot pin 14 in the axial direction is mobile.Also, slide valve 51 also follows pivot pin 14 movement and side in the axial direction is mobile.

The state is shown in the lower half portion of the figure.As clearly shown in the lower half portion of the figure, at spiral piping arrangement 20 In the case where action state, input port 52A and output port 52B are connected with each other via the slot of slide valve 51.Also, oil warp Spiral piping arrangement 20 is supplied to by oily supply port 52E.

Here, as described above, spiral piping arrangement 20 the second through-hole 120 relative to central axis 100 be configured at ground side, and Interconnecting piece 151 is configured in the state of top side relative to central axis 100 and is combined with valve body 50.Therefore, in such valve system In, even if containing pollutant from the oil that oily supply port 52E is supplied in spiral piping arrangement 20, pollutant will not enter In the plunger compartment of spiral piping arrangement 20.

As described above, the responsiveness of valve opening and closing is good, and can effectively prevent pollutant according to the third example of valve system Enter spiral piping arrangement from valve gear.

< conclusion >

As described above, embodiment according to the present utility model, it is not necessary to which the circumferential surface length for shortening plunger is just able to suppress The magnetic suck of plunger and shell.

Several embodiments of the utility model are illustrated, but these embodiments propose as an example, no Intended limitation the scope of the utility model.These embodiments can be real in various modes in addition to the foregoing It applies, various omissions, displacement, change etc. is able to carry out in the range of not departing from the purport of the utility model.These embodiments And its deformation is contained in the scope of the utility model and purport, and the utility model and its equipollent of claim record Also it is contained in the scope of the utility model and purport.

Claims (12)

1. a kind of spiral piping arrangement comprising:

Shell, with opening portion；

Non magnetic cap is installed on the opening portion, has for preventing Inside To Outside of the non magnetic cap from the shell The blocking portion that falls off to fall off, opening portion described in the non magnetic cap closure；

Bobbin winder bracket is supported in the shell, has following the first cylinder portion, and the first cylinder portion has along axis To the first central shaft hole；

Coil is wound in the first cylinder portion；

Iron core is configured in first central shaft hole, has following the second cylinder portion, and the second cylinder portion has edge The second axial central shaft hole；

Plunger is made of magnetic substance, is configured in the space of the inside in the second cylinder portion, has the axis axially extended Through-hole, and the plunger can be axially moveable relative to the second cylinder portion；And

Pivot pin is inserted into the shaft through-hole, and the axial side of the pivot pin is exposed from the shell,

The opening portion is set to the part opposite with the axial surface of the other side of the direction of the plunger,

When the other side of the plunger farthest in the axial direction is mobile, the end face of the axial other side of the pivot pin and institute State non magnetic cap contact.

2. spiral piping arrangement according to claim 1, which is characterized in that

The blocking portion that falls off is radially extended by the diameter of the axial side of the non magnetic cap and is opened with the shell The radial extension point of mouth peripheral contact is constituted.

3. spiral piping arrangement according to claim 1, which is characterized in that

The convex edge that the diameter for falling off axial side of the blocking portion with the non magnetic cap radially extends,

The shell has stage portion in axial side,

The non magnetic cap is overlapped by the convex edge with the stage portion in the axial direction is installed in the shell.

4. spiral piping arrangement according to claim 3, which is characterized in that

The non magnetic cap be clamped between the stage portion and the iron core by the convex edge be supported in it is described Shell.

5. spiral piping arrangement according to claim 1, which is characterized in that

With it is axially vertical radially, be exposed to the surface of the shell of the opening portion position and be exposed to the sky Between the iron core surface position it is substantially consistent.

6. spiral piping arrangement according to claim 5, which is characterized in that

The iron core and the shell are made of magnetic substance.

7. spiral piping arrangement according to claim 6, which is characterized in that

The non magnetic cap is made of resin.

8. spiral piping arrangement according to claim 7, which is characterized in that

The second cylinder portion, which has, to be configured at the first part of axial side and is configured at second of the axial other side Point,

The first part and second part are separated from each other across gap.

9. a kind of control valve comprising:

Spiral piping arrangement described in any one of claim 1 to 8；And

Valve body, with valve gear, the valve gear is in conjunction with the spiral piping arrangement, by the axis of the spiral piping arrangement Sell and drive the valve of the valve gear.

10. control valve according to claim 9, which is characterized in that

The slide valve that the valve gear is axially moveable with the pivot pin by the spiral piping arrangement, and according to the cunning The amount of movement of valve and drive the valve.

11. control valve according to claim 10, which is characterized in that

The pivot pin of the spiral piping arrangement is contacted with the slide valve,

The movement of the plunger is followed in the movement of the slide valve.

12. control valve according to claim 11, which is characterized in that

The valve gear control is hydraulic.