CN104541340A - Electromagnetic solenoid - Google Patents
Electromagnetic solenoid Download PDFInfo
- Publication number
- CN104541340A CN104541340A CN201380042566.4A CN201380042566A CN104541340A CN 104541340 A CN104541340 A CN 104541340A CN 201380042566 A CN201380042566 A CN 201380042566A CN 104541340 A CN104541340 A CN 104541340A
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- mentioned
- bearing part
- plunger
- padded coaming
- incorporating section
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/088—Electromagnets; Actuators including electromagnets with armatures provided with means for absorbing shocks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
- H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
Abstract
The present invention provides an electromagnetic solenoid which makes it possible to reduce impact noise from plunger impact and to always accurately stop the plunger at a predetermined location. An impact absorbing means (31) is provided with: a receiving member (35) which retracts when subjected to the impact of a plunger (20); a spring (36) which urges the receiving member (35) in the direction of advance; and a restricting part (37) which restricts the receiving member (35) at a predetermined position, a buffer material (40) being provided between the receiving member (35) and an opposing surface (38). The impact caused by striking of the plunger (20) is therefore absorbed so the impact noise is reduced, the retracting receiving member (35) does not strike the opposing surface (38), and the impact noise is reduced by virtue of the buffer material (40). Furthermore, the plunger (20) can return to a predetermined location and be accurately positioned by means of the restricting part (37), and as a result it is possible to always maintain a constant amount of stroke of the plunger (20).
Description
Technical field
The present invention relates to the o being made plunger movement by the excitation of magnet exciting coil.
Background technology
O makes plunger give prominence to usually by the excitation of magnet exciting coil, when magnet exciting coil demagnetization, by the forcing unit of spring etc., external load and by plunger press-in to position originally.
In order to be pressed into by plunger and stop at position originally, and be fixed with fixed part (brake) in assigned position, bulged-in plunger and fixed part collide and stop at position originally.
Plunger and fixed part are generally metal, therefore, when plunger and fixed part collide, produce metallic sound.
So, propose following technology, by arranging the buffer unit be made up of elastomer in the part collided of plunger or fixed part, make buffer unit between plunger and the collision of fixed part, thus absorb and reduce impact sound (such as with reference to patent documentation 1) by colliding the impact that causes.
O disclosed in patent documentation 1 is provided with elastomeric buffer unit on plunger with the collision part of the mutually relative both sides of fixed part (brake), and buffer unit absorbs by colliding the impact that causes and reduces impact sound.In addition, in this o, buffer unit catches bulged-in plunger by strain limit, limit, thus absorbs impact, and buffer unit, after strain, flexibly restores, and makes plunger return to assigned position originally thus.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Application Publication 2004-510327 publication
Summary of the invention
Invent problem to be solved
Thus, in the o disclosed in patent documentation 1, because plunger collides with buffer unit all the year round repeatedly, add qualitative aging and on buffer unit, produce depression, even if when being out of shape a little, also cannot plunger be made again to stop at assigned position exactly.
When plunger cannot stop at assigned position, then the path increment of plunger changes and driven member cannot be made to carry out action exactly.
So, although can consider by arranging the bearing part bearing plunger collides on fixed part movably, and utilize the forcing unit of spring etc. to exert a force to this bearing part, thus impact when utilizing force application part absorption plunger collides, even if but in this case, bearing part also likely produces impact sound with the localized contact of fixed part.
The present invention carries out in view of the foregoing, its objective is and provides o, can reduce the impact sound produced because of plunger collides, and make plunger all the time precision stop at assigned position well.
For solving the means of problem
In order to reach above-mentioned purpose, the present invention is a kind of o, in the inner side in cylindrical coil portion, fixed part is set with stationary state, and so that movable yoke can be arranged along the mode moved axially of above-mentioned coil portion, this movable yoke is provided with the axially extended plunger along above-mentioned coil portion, by the excitation of above-mentioned coil portion, above-mentioned movable yoke advances in the mode left from fixation portions together with above-mentioned plunger, by the demagnetization of above-mentioned coil portion, above-mentioned movable yoke retreats in the mode close to fixation portions together with above-mentioned plunger
The feature of above-mentioned o is,
Fixation portions has impact absorbing unit, and it absorbs impact when above-mentioned plunger retreats and collides with fixation portions together with above-mentioned movable yoke,
Above-mentioned impact absorbing unit possesses: bearing part, it is being arranged in incorporating section along the above-mentioned mode moved axially, this incorporating section is arranged on the inside of fixation portions, and above-mentioned bearing part bears the collision of the above-mentioned plunger of retrogressing and retreats together with this plunger; Force application part, it is arranged in above-mentioned incorporating section and progressive direction and exerts a force to above-mentioned bearing part; And limiting unit, the above-mentioned bearing part advanced is limited in the position of regulation,
At above-mentioned bearing part with to be formed in above-mentioned incorporating section and to be provided with padded coaming between the opposite face relative with the direction that above-mentioned bearing part retreats.
In the present invention, when plunger retreats in the mode close to fixed part and collides with bearing part together with movable yoke, resist the active force of force application part by this plunger together with bearing part and retreat to absorb and impact and reduce impact sound.
In addition, due at bearing part with to be formed in above-mentioned incorporating section and to be provided with padded coaming between the opposite face relative with the direction that above-mentioned bearing part retreats, the bearing part therefore retreated does not collide with opposite face, utilizes padded coaming to reduce impact sound.Thus, the impact sound produced because of plunger collides can be reduced.
In addition, although the bearing part temporarily retreated is advanced together with plunger by force application part, advance because restricting portion limits it, therefore plunger can return to assigned position and precision locates stopping well, thus, can all the time the path increment of plunger be remained constant.
In said structure of the present invention, preferred above-mentioned padded coaming is arranged on above-mentioned bearing part, between the internal face of the moving direction along above-mentioned bearing part of this padded coaming and above-mentioned incorporating section, be provided with gap.
According to this structure, because padded coaming is arranged on bearing part, therefore by being accommodated in the incorporating section of fixed part by this bearing part, thus easily padded coaming can be assembled.
In addition, due to padded coaming and incorporating section along bearing part moving direction internal face between be provided with gap, even if therefore padded coaming moves together with bearing part, this padded coaming also can not be interfered with internal face.Thus, the movement of bearing part is smooth and easy, and padded coaming can not be impaired because of the friction with internal face.
In addition, in said structure of the present invention, above-mentioned padded coaming also can be arranged on above-mentioned opposite face.
According to this structure, because padded coaming is not arranged on bearing part, therefore the movement of bearing part becomes smooth and easy.
In addition, in said structure of the present invention, preferred above-mentioned padded coaming does not contact with above-mentioned force application part.
According to this structure, because padded coaming does not contact with force application part, therefore padded coaming and force application part do not interfere.Thus, spring is not by the impact of padded coaming, and the movement of bearing part becomes smooth and easy.
The effect of invention
According to the present invention, when plunger and bearing part collide, this plunger is resisted the active force of force application part and retreats together with bearing part, absorb impact thus, and the bearing part of retrogressing does not collide with opposite face, utilizes padded coaming to reduce impact sound.
In addition, although the bearing part temporarily retreated is advanced together with plunger by force application part, advance because restricting portion limits it, therefore plunger can return to assigned position, and precision locates stopping well.
Thus, the impact sound produced because of plunger collides can be reduced, and make plunger all the time precision stop at assigned position well.
Accompanying drawing explanation
Fig. 1 is the figure of the first execution mode of the o representing embodiment of the present invention, is its cutaway view.
Fig. 2 is the amplification view of the fixed part of above-mentioned o.
Fig. 3 is the process chart of the action of o for illustration of the first execution mode.
Fig. 4 is the figure of the fixed part of the formation o representing other execution mode of the present invention, a () is the cutaway view of the fixed part of the second execution mode, b () is the cutaway view of the fixed part of the 3rd execution mode, c () is the cutaway view of the fixed part of the 4th execution mode, d () is the cutaway view of the fixed part of the 5th execution mode, e () is the cutaway view of the fixed part of the 6th execution mode, f () is the cutaway view of the fixed part of the 7th execution mode, (g) is the cutaway view of the fixed part of the 8th execution mode.
Embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described.
(the first execution mode)
Fig. 1 is the cutaway view of the o representing first embodiment of the invention, and Fig. 2 is the amplification view of the fixed part of this o.
This o is such as in order to make the fuel rod of diesel internal combustion engine to stopping direction action, and makes engine automatic stop, or the device used to automatically carry out reverse gear to select locking in four-wheel manual transmission vehicles.
This o possesses the plunger guide portion 11 and fixed part 12, movable yoke 15 and coil portion 16 that double as yoke.
Plunger guide portion 11 and fixed part 12 are oppositely disposed on axes O direction, and the movable yoke 15 with cylindrical portion 15a is arranged in the mode that can move along its axis outside the periphery of this fixed part 12.And, outside the periphery of cylindrical portion 15a, there is cylindric coil portion 16 with the periphery arranged outside in plunger guide portion 11.In other words, fixed part 12 and plunger guide portion 11 are arranged on the inner side in cylindrical coil portion 16 with stationary state, and be simultaneously set to can moving axially along coil portion 16 for movable yoke 15.
Coil portion 16 makes movable yoke 15 along the parts of axes O movement, and it possesses skeleton 16a and is wound on the coil 16b on this skeleton 16a.
Above-mentioned each parts (plunger guide portion 11, fixed part 12, movable yoke 15, coil portion 16) are substantially shaped as Rotational Symmetry, and namely cross section is formed as circular, and is incorporated in columnar housing 30.
Above-mentioned movable yoke 15 by being advanced in the mode left from fixed part 12 by the excitation (on-state) of the coil portion 16 caused that is energized to coil 16b, and is retreated in the mode close to fixed part 12 by the demagnetization (off-state) of coil portion 16.
In addition, in FIG, the left side kept left than axis О represents that movable yoke 15 moves to the state of side, plunger guide portion 11 (on-state), and the right side of keeping right than axis О represents that movable yoke 15 is positioned at the state of fixed part 12 side (off-state).
Movable yoke 15 is by the cylindrical portion 15a that extends along axes O direction and be formed in the bottom 15b of this cylindrical portion 15a lower end and be formed as cup-shaped (bottomed cylindrical), is formed with protuberance 15c outstanding upward at the central portion of bottom 15b.This protuberance 15c is formed with through hole, its through lower surface to above-mentioned bottom 15b.The leading section Ga of above-mentioned plunger 20 inserts and is fixed on this through hole.In addition, the leading section of plunger 20 is given prominence to upward than protuberance 15c.So, because plunger 20 is fixed in movable yoke 15, therefore move along axes O together with yoke 15 movable with this.
In addition, in plunger guide portion 11, be formed with through hole 11a along axes O, plunger 20 is movably inserted in this through hole 11a via two bearings 17,17, and the front end of this plunger 20 is fixed in movable yoke 15.In addition, be provided with the convex edge 21 of ring-type at the peripheral part in plunger guide portion 11, be combined with the bottom of housing 30 at the peripheral part of this convex edge 21.
As shown in Figure 2, fixation portions 12 is configured to end thereon and forms above-mentioned convex edge 22, has impact absorbing unit 31 in the inside of this fixed part 12.
This impact absorbing unit 31 is the unit of the impact absorbed when above-mentioned plunger 20 retreats and collides with fixed part 12 together with movable yoke 15, and forms as follows.
That is, first incorporating section 32 is formed with in the inside of fixed part 12.This incorporating section 32 is formed as roughly cylindric, its lower ending opening, and upper end closed.
Incorporating section 32 possesses the first cylindric incorporating section 32a and is formed in the second incorporating section 32b of this 32a upper end, the first incorporating section coaxially with this first incorporating section 32a, and the diameter of the second incorporating section 32b is less than the first incorporating section 32a.And, be formed with cylindric large-diameter portion 33 coaxially in the lower end side of the first incorporating section 32a and the first incorporating section 32a.This large-diameter portion 33 receives the protuberance 15c of this movable yoke 15 when movable yoke 15 retreats and comes.
In addition, in the first incorporating section 32a so that bearing part 35 can be provided with along the mode of axis (O) direction movement.This bearing part 35 bears the collision of the plunger 20 retreated together with movable yoke 15 and the parts retreated together with this plunger 20, and be formed as roughly cylindric.
Bearing part 35 possesses: main part 35a, and it can slide in the axial direction on the internal face of the first incorporating section 32a; Minor diameter 35b, it is formed on the upper surface of this main part 35a with the diameter less than this main part 35a; Axle portion 35c, it is formed on the upper surface of this minor diameter 35b with the diameter less than this minor diameter 35b; And receiving portion 35d, it is formed on the lower surface of main part 35a with the diameter less than this main part 35a, and bears the collision of above-mentioned plunger 20.
Above-mentioned axle portion 35c is incorporated in the second incorporating section 32b, spring 36 is incorporated in the 32b of this second incorporating section in the mode of surrounding above-mentioned axle portion 35c outer circumferential side, the force application part that this spring 36 exerts a force to bearing part 35 as progressive direction (in Fig. 1 below).Spring 36 is contained with the state of compression, and its upper end abuts with the upper surface of the second incorporating section 32b, and bottom abuts with the upper surface peripheral part of above-mentioned minor diameter 35b.
In addition, the bottom of the first incorporating section 32a is provided with limiting unit 37.This limiting unit 37 is the positions bearing part 35 of advance being limited in regulation, thus limits the parts be advanced further.Limiting unit 37 is formed by annular plate, and embeds and be fixed on the annular recessed portion on the bottom internal face being formed in the first incorporating section 32a.Insert the receiving portion 35d of bearing part 35 in the inner side of limiting unit 37, the front end (in Fig. 1 lower end) of this receiving portion 35 is given prominence to downwards than limiting unit 37.Thus, above-mentioned plunger 20 can collide with receiving portion 35d.
In addition, the upper surface of the first incorporating section 32a of above-mentioned incorporating section 32 becomes the opposite face 38 relative with the direction that bearing part 35 retreats (in Fig. 1 top).And, between bearing part 35 and opposite face 38, be provided with padded coaming 40.
This padded coaming 40 is the parts of the impact absorbed when the main part 35a of bearing part 35 and opposite face 38 collide, and is formed by the rubber of such as ring-type.The padded coaming 40 of this ring-type is installed on the outer peripheral face of the minor diameter 35b of bearing part 35, and is set to abut with the upper surface of main part 35a.And, between padded coaming 40 and the internal face (internal face along bearing part moving direction) of the first incorporating section, be provided with the gap S of regulation.
In addition, the length of the above-below direction of padded coaming 40 is set to, under the state abutted before bearing part 35 and then with limiting unit 37, the gap between padded coaming 40 and opposite face 38 is less than the gap between the axle portion 35c of bearing part 35 and the upper surface 38a of the second incorporating section 32b.Thus, due to bearing part 35 retreat (being moved upward in Fig. 2) time, padded coaming 40 and opposite face 38 collide and stop bearing part 35 to retreat further, and therefore axle portion 35c does not collide with the upper surface of the second incorporating section 32b.
In addition, padded coaming 40 is installed on the outer peripheral face of the minor diameter 35b of bearing part 35, and on the other hand, the lower end of spring 36 abuts with the upper surface of minor diameter 35b.Thus, padded coaming 40 does not contact with spring 36.
Below, be described with reference to the action of Fig. 3 to the o of present embodiment.
Fig. 3 (a) represents by making coil portion 16 (with reference to Fig. 1) excitation, thus the state that movable yoke 15 advances in the mode left from fixed part 12.In this condition, the plunger 20 being fixed on movable yoke 15 advances together with movable yoke 15, leaves from fixed part 12.And by spring 36, progressive direction (in Fig. 3 below) is biased the bearing part 35 of impact absorbing unit 31, abuts and be in confined state of further advancing with limiting unit 37.
Afterwards, after making coil portion 6 demagnetization, as shown in Fig. 3 (b), plunger 20 is retreated in the mode close to fixed part 12 together with movable yoke 15 by external load (omitting diagram) pushing, and plunger 20 collides with the receiving portion 35d of bearing part 35.So this plunger 20 is resisted the active force of spring 36 and retreats together with bearing part 35, absorb thus and impact and reduce impact sound.
And then as shown in Fig. 3 (c), although bearing part 35 is pushed by plunger 20 and retreats, the upper surface due to the main part 35a at bearing part 35 is provided with padded coaming 40, therefore this padded coaming 40 collides with above-mentioned opposite face 38.Thus, the bearing part 35 of retrogressing does not collide with opposite face 38, and utilizes padded coaming 40 to reduce impact sound.
Thereafter, as shown in Fig. 3 (d), although the bearing part 35 temporarily retreated is pushed to the direction of advance by the active force of spring 36, advance together with plunger 20, but because the lower surface of the main part 35a of bearing part 35 abuts with limiting unit 37, its advance is limited by this limiting unit 37, and therefore plunger 20 returns to assigned position and stops.
So, according to the present embodiment, after making coil portion 16 demagnetization, plunger 20 is pushed by external load, when retreating in the mode close to fixed part 12 together with movable yoke 15, and when colliding with the receiving portion 35d of bearing part 35, this plunger 20 is resisted the active force of spring 36 and retreats together with bearing part 35, absorb thus and impact and reduce impact sound.
And then, owing to being provided with padded coaming 40 on bearing part 35, that is, owing to being provided with padded coaming 40 between bearing part 35 and opposite face 38, therefore the bearing part 35 retreated does not collide with opposite face 38, utilizes padded coaming 40 to reduce impact sound.Thus, the impact sound produced because plunger 20 collides can be reduced.
In addition, to the result that impact sound is tested, can confirm there is the impact absorbing unit 31 of bearing part 35 and spring 36 and the impact sound of the non-existent o of padded coaming 40 both sides is about 74dB, the impact sound only possessing the o of impact absorbing unit 31 is about 66dB, the impact sound possessing the o of impact absorbing unit 31 and padded coaming 40 both sides is about 50dB, significantly can reduce impact sound.
In addition, although the bearing part 35 temporarily retreated is advanced together with plunger 20 by the active force of spring 36, but advance owing to being limited it by limiting unit 37, therefore plunger 20 can return to assigned position, and precision locates stopping well, thus, can all the time the path increment of plunger 20 be remained constant.
In addition, padded coaming 40 is arranged on the minor diameter 35b of bearing part 35, owing to being provided with gap between this padded coaming 40 and internal face of the first incorporating section 32a, even if therefore padded coaming 40 moves together with bearing part 35, this padded coaming 40 also can not be interfered with above-mentioned internal face.Thus, the movement of bearing part 35 is smooth and easy, and padded coaming 40 can not be impaired because of the friction with internal face.
In addition, because padded coaming 40 is arranged on bearing part 35, therefore by being accommodated in the incorporating section 32 of fixed part 12 by this bearing part 35, thus can easily assemble padded coaming 40.
And padded coaming 40 is arranged on the outer peripheral face of the minor diameter 35b of bearing part 35, and the lower end of spring 36 abuts with the upper surface of minor diameter 35b, because padded coaming 40 does not contact with spring 36, therefore padded coaming 40 and spring 36 can not be interfered.Thus, spring 36 is not by the impact of padded coaming 40, and the movement of bearing part 35 becomes smooth and easy.
Fig. 4 (a) to Fig. 4 (g) is the cutaway view representing other execution mode of the present invention respectively.
The difference of the o of other execution mode shown in these figure and the o of above-mentioned first execution mode is shape, the allocation position of the bearing part, spring (force application part), padded coaming etc. being arranged on fixed part 12 inside, because other component part is identical with the first execution mode, therefore to same component part mark prosign, also the description thereof will be omitted.And due in other embodiments, the part beyond fixed part 12 is identical with the first execution mode, therefore only illustrates fixed part 12 in Fig. 4 (a) to Fig. 4 (g).
In the second execution mode shown in Fig. 4 (a), padded coaming 41 is arranged on the upper surface 38a of the second incorporating section 32b of fixed part 12.This upper surface 38a is one of the opposite face 38a relative with the direction that bearing part 35 retreats.And, the same with the first execution mode, in incorporating section 32, be formed with opposite face 38.
Padded coaming 41 is formed as roughly cylindric, possesses large-diameter portion 41a and minor diameter 41b, between large-diameter portion 41a and minor diameter 41b, is formed with neck.This padded coaming 41 is set to make minor diameter 41b relative with the axle portion 35c of bearing part 35.The diameter of minor diameter 41b is larger than the axle portion 35c of bearing part 35.And the upper end of spring 36 is engaging in the neck of padded coaming 41.In addition, the length of the above-below direction of padded coaming 41 is set to, under the state abutted before bearing part 35 and then with limiting unit 37, the gap between the axle portion 35c of padded coaming 41 and bearing part 35 is less than the gap between the main part 35a of bearing part 35 and opposite face 38.
According to this structure, the main part 35a of the bearing part 35 of retrogressing does not collide with opposite face 38, and axle portion 35c and padded coaming 41 collide, and utilizes this padded coaming 41 to reduce impact sound.And padded coaming 41 is arranged on opposite face 38a, owing to not being arranged on bearing part 35, therefore the movement of bearing part 35 becomes smooth and easy.
In the 3rd execution mode shown in Fig. 4 (b), although the same with the second execution mode, padded coaming 42 is arranged on the upper surface of the second incorporating section 32b of fixed part 12, but is formed with protuberance 32c on this upper surface, and padded coaming 42 embeds this protuberance 32c.Padded coaming 42 is formed as cylindric, and end face is formed with recess thereon, and this recess is chimeric with raised part 32c.
In addition, the length of the above-below direction of padded coaming 42 is set to, under the state abutted before bearing part 35 and then with limiting unit 37, the gap between the axle portion 35c of padded coaming 42 and bearing part 35 is less than the gap between the main part 35a of bearing part 35 and opposite face 38.
According to this structure, the same with the second execution mode, the main part 35a of the bearing part 35 of retrogressing does not collide with opposite face 38, and axle portion 35c and padded coaming 42 collide, and utilizes this padded coaming 42 to reduce impact sound.
In addition, because padded coaming 42 embeds protuberance 32c, therefore, it is possible to easily location and installation padded coaming 42.
In the 4th execution mode shown in Fig. 4 (c), the same with the second execution mode, padded coaming 43 is arranged on the upper surface 38a of the second incorporating section 32b of fixed part 12.Padded coaming 43 is formed as thinner than above-mentioned padded coaming 41 discoideus.And the upper end of spring 36 abuts with the surface of padded coaming 43.In addition, the thickness of padded coaming 43 is set to, and under the state abutted before bearing part 35 and then with limiting unit 37, the gap between the axle portion 35c of padded coaming 43 and bearing part 35 is less than the gap between the main part 35a of bearing part 35 and opposite face 38.
According to this structure, the effect the same with above-mentioned second execution mode can be obtained.
In the 5th execution mode shown in Fig. 4 (d), padded coaming 44 is installed on the axle portion 35c of bearing part 35.Padded coaming 44 is formed as cylindric, is formed with recess in its lower surface, and this recess is chimeric with axle portion 35c.
Upper surface (opposite face) 38a of the second incorporating section 32b is one of the opposite face relative with the direction that bearing part 35 retreats.
In addition, the length of the above-below direction of padded coaming 44 is set to, and under the state abutted before bearing part 35 and then with limiting unit 37, the gap between padded coaming 44 and opposite face 38a is less than the gap between the main part 35a of bearing part 35 and opposite face 38.
According to this structure, the main part 35a of the bearing part 35 of retrogressing does not collide with opposite face 38, and the padded coaming 44 be arranged on axle portion 35c collides with opposite face 38a, and utilizes this padded coaming 44 to reduce impact sound.
In the 6th execution mode shown in Fig. 4 (e), although the same with above-mentioned 5th execution mode, padded coaming 45 is installed on the axle portion 35c of bearing part 35, and its installation method is different from the 5th execution mode.
That is, padded coaming 45 has installation shaft 45a at its lower surface.On the other hand, in axle portion 35c, be formed with installing hole, in this installing hole, insert installation shaft 45a.Thus, padded coaming 45 is installed on the axle portion 35c of bearing part 35.
According to this structure, effect can be obtained in the same manner as the 5th execution mode.
In the 7th execution mode shown in Fig. 4 (f), padded coaming 46 is formed as ring-type.On the other hand, the axle portion 35c of bearing part 35 is formed as shorter compared with the axle portion 35c of the first to the 6th execution mode, and the outer peripheral face of this axle portion 35c is provided with padded coaming 46.And, between padded coaming 46 and the internal face of the second incorporating section 32b, be provided with the gap of regulation.
The length of the above-below direction of padded coaming 46 is set to, and under the state abutted before bearing part 35 and then with limiting unit 37, the gap between padded coaming 46 and opposite face 38a is less than the gap between the main part 35a of bearing part 35 and opposite face 38.
In addition, in axle portion 35c, be formed with recess, insert the spring 36a as force application part in this recess, the upper end of this spring 36a abuts with opposite face 38a.
According to this structure, the main part 35a of the bearing part 35 of retrogressing does not collide with opposite face 38, and the padded coaming 46 be arranged on axle portion 35c collides with opposite face 38a, and utilizes this padded coaming 46 to reduce impact sound.
In the 8th execution mode shown in Fig. 4 (g), although the same with the first execution mode, padded coaming 47 is arranged on the peripheral part of the minor diameter 35b of bearing part 35, and its installation method is different from the first execution mode.
In the present embodiment, the outward flange 48a of ring-type is formed at the peripheral part of minor diameter 35b.And padded coaming 47 is formed with inner flange 48b outstanding with ring-type to the inside in its underpart.Then, by the downside making this inner flange 48b be embedded in outward flange 48a, thus padded coaming 47 is installed on the peripheral part of the minor diameter 35b of bearing part 35.
In addition, the length of the above-below direction of padded coaming 47 is set to, under the state abutted before bearing part 35 and then with limiting unit 37, the gap between padded coaming 47 and opposite face 38 is less than the gap between the axle portion 35c of bearing part 35 and the upper surface 38a of the second incorporating section 32b.
According to this structure, decapacitation accesses beyond the effect the same with the first execution mode, padded coaming 47 firmly can be arranged on bearing part 35.
Symbol description
12-fixed part, 15-movable yoke, 16-coil portion, 0-plunger, 31-impact absorbing unit, 32-incorporating section, 35-bearing part, 36-spring (force application part), 37-limiting unit, 38,38a-opposite face, 40 ~ 46-padded coaming.
Claims (amendment according to treaty the 19th article)
1. (after amendment) a kind of o, in the inner side in cylindrical coil portion, fixed part is set with stationary state, and so that movable yoke can be arranged along the mode moved axially of above-mentioned coil portion, this movable yoke is provided with the axially extended plunger along above-mentioned coil portion, by the excitation of above-mentioned coil portion, above-mentioned movable yoke advances in the mode left from fixation portions together with above-mentioned plunger, by the demagnetization of above-mentioned coil portion, above-mentioned movable yoke retreats in the mode close to fixation portions together with above-mentioned plunger
The feature of above-mentioned o is,
Fixation portions has impact absorbing unit, and it absorbs impact when above-mentioned plunger retreats and collides with fixation portions together with above-mentioned movable yoke,
Above-mentioned impact absorbing unit possesses: bearing part, it is being arranged in incorporating section along the above-mentioned mode moved axially, this incorporating section is arranged on the inside of fixation portions, and above-mentioned bearing part bears the collision of the above-mentioned plunger of retrogressing and retreats together with this plunger; Force application part, it is arranged in above-mentioned incorporating section and progressive direction and exerts a force to above-mentioned bearing part; And limiting unit, the above-mentioned bearing part advanced is limited in the position of regulation,
At above-mentioned bearing part with to be formed in above-mentioned incorporating section and to be provided with padded coaming between the opposite face relative with the direction that above-mentioned bearing part retreats,
Above-mentioned incorporating section possesses: the first cylindric incorporating section; And second incorporating section, the side that the above-mentioned bearing part that itself and this first incorporating section is formed in this first incorporating section coaxially retreats, it is less than above-mentioned first incorporating section that above-mentioned second incorporating section is formed as diameter,
Above-mentioned bearing part possesses: main part, and it can slide in the axial direction on the internal face of above-mentioned first incorporating section; Minor diameter, the side that its this bearing part being formed in aforementioned body portion with the diameter less than aforementioned body portion retreats; Axle portion, the side that its this bearing part being formed in above-mentioned minor diameter with the diameter less than above-mentioned minor diameter retreats; And receiving portion, the side that its this bearing part being formed in aforementioned body portion with the diameter less than aforementioned body portion advances, and bear the collision of above-mentioned plunger,
Above-mentioned force application part is set to the outer circumferential side in the above-mentioned axle portion surrounding above-mentioned bearing part.
2. o according to claim 1, is characterized in that,
Above-mentioned padded coaming is arranged on above-mentioned bearing part, between the internal face of the moving direction along above-mentioned bearing part of this padded coaming and above-mentioned incorporating section, be provided with gap.
3. (after amendment) o according to claim 1, is characterized in that,
It is less than above-mentioned receiving portion that the above-mentioned minor diameter of above-mentioned bearing part is formed as diameter, is provided with above-mentioned padded coaming in the outside of this minor diameter.
4. (after amendment) o according to claim 1, is characterized in that,
Above-mentioned padded coaming is arranged on above-mentioned opposite face.
5. (add) o according to any one of claim 1 to 4, it is characterized in that,
Above-mentioned padded coaming does not contact with above-mentioned force application part.
Illustrate or state (amendment according to treaty the 19th article)
Claim 1 is not documented in any one document quoted in international search report, for those skilled in the art neither be apparent.
That is, also do not record in any document that " above-mentioned incorporating section possesses: the first cylindric incorporating section; And second incorporating section, the side that the above-mentioned bearing part that itself and this first incorporating section is formed in this first incorporating section coaxially retreats, it is less than above-mentioned first incorporating section that above-mentioned second incorporating section is formed as diameter,
Above-mentioned bearing part possesses: main part, and it can slide in the axial direction on the internal face of above-mentioned first incorporating section; Minor diameter, the side that its this bearing part being formed in aforementioned body portion with the diameter less than aforementioned body portion retreats; Axle portion, the side that its this bearing part being formed in above-mentioned minor diameter with the diameter less than above-mentioned minor diameter retreats; And receiving portion, the side that its this bearing part being formed in aforementioned body portion with the diameter less than aforementioned body portion advances, and bear the collision of above-mentioned plunger,
Above-mentioned force application part is set to the outer circumferential side in the above-mentioned axle portion surrounding above-mentioned bearing part " structure.
Claims (4)
1. an o, in the inner side in cylindrical coil portion, fixed part is set with stationary state, and so that movable yoke can be arranged along the mode moved axially of above-mentioned coil portion, this movable yoke is provided with the axially extended plunger along above-mentioned coil portion, by the excitation of above-mentioned coil portion, above-mentioned movable yoke advances in the mode left from fixation portions together with above-mentioned plunger, by the demagnetization of above-mentioned coil portion, above-mentioned movable yoke retreats in the mode close to fixation portions together with above-mentioned plunger
The feature of above-mentioned o is,
Fixation portions has impact absorbing unit, and it absorbs impact when above-mentioned plunger retreats and collides with fixation portions together with above-mentioned movable yoke,
Above-mentioned impact absorbing unit possesses: bearing part, it is being arranged in incorporating section along the above-mentioned mode moved axially, this incorporating section is arranged on the inside of fixation portions, and above-mentioned bearing part bears the collision of the above-mentioned plunger of retrogressing and retreats together with this plunger; Force application part, it is arranged in above-mentioned incorporating section and progressive direction and exerts a force to above-mentioned bearing part; And limiting unit, the above-mentioned bearing part advanced is limited in the position of regulation,
At above-mentioned bearing part with to be formed in above-mentioned incorporating section and to be provided with padded coaming between the opposite face relative with the direction that above-mentioned bearing part retreats.
2. o according to claim 1, is characterized in that,
Above-mentioned padded coaming is arranged on above-mentioned bearing part, between the internal face of the moving direction along above-mentioned bearing part of this padded coaming and above-mentioned incorporating section, be provided with gap.
3. o according to claim 1, is characterized in that,
Above-mentioned padded coaming is arranged on above-mentioned opposite face.
4. o according to any one of claim 1 to 3, is characterized in that,
Above-mentioned padded coaming does not contact with above-mentioned force application part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-177819 | 2012-08-10 | ||
| JP2012177819A JP5890276B2 (en) | 2012-08-10 | 2012-08-10 | Electromagnetic solenoid |
| PCT/JP2013/069594 WO2014024659A1 (en) | 2012-08-10 | 2013-07-19 | Electromagnetic solenoid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104541340A true CN104541340A (en) | 2015-04-22 |
| CN104541340B CN104541340B (en) | 2016-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676143A (en) * | 2016-08-01 | 2018-02-09 | 株式会社电装 | Electromagnetic actuators |
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| JP2008306122A (en) * | 2007-06-11 | 2008-12-18 | Keihin Corp | Electromagnetic actuator |
| WO2010029695A1 (en) * | 2008-09-11 | 2010-03-18 | 株式会社カワサキプレシジョンマシナリ | Adjusting screw structure for oil immersed solenoid and oil immersed solenoid with same |
| CN102623131A (en) * | 2011-01-26 | 2012-08-01 | 本田技研工业株式会社 | Electromagnetism solenoid and combustion motor variable valve mechanism having the electromagnetism solenoid |
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| JPH0634211U (en) * | 1992-10-05 | 1994-05-06 | シーケーディ株式会社 | Pusher for sorter |
| JPH0711887U (en) * | 1993-07-29 | 1995-02-21 | 株式会社京浜精機製作所 | Absorption structure of operating noise in electromagnetic devices |
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| JPH10215555A (en) * | 1997-01-28 | 1998-08-11 | Matsushita Electric Works Ltd | Electromagnetic solenoid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676143A (en) * | 2016-08-01 | 2018-02-09 | 株式会社电装 | Electromagnetic actuators |
| CN107676143B (en) * | 2016-08-01 | 2020-12-29 | 株式会社电装 | Electromagnetic actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014024659A1 (en) | 2014-02-13 |
| BR112015002925B1 (en) | 2021-04-27 |
| IN2015DN01239A (en) | 2015-06-26 |
| JP2014036180A (en) | 2014-02-24 |
| JP5890276B2 (en) | 2016-03-22 |
| BR112015002925A2 (en) | 2018-05-22 |
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