CN105570341B - Electromagnetic clutch - Google Patents
Electromagnetic clutch Download PDFInfo
- Publication number
- CN105570341B CN105570341B CN201610164197.1A CN201610164197A CN105570341B CN 105570341 B CN105570341 B CN 105570341B CN 201610164197 A CN201610164197 A CN 201610164197A CN 105570341 B CN105570341 B CN 105570341B
- Authority
- CN
- China
- Prior art keywords
- armature
- component
- electromagnet
- armature component
- electromagnetic clutch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
- F16D27/108—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Operated Clutches (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A kind of electromagnetic clutch, including：Rotating shaft；Driving wheel；Driven wheel assembly；Electromagnet；Armature component；Elastic component, elastic component applies active force to armature component；Characterized in that, electromagnetic clutch also includes the first rotor, the first rotor is located between electromagnet and armature component and including soft magnetic materials；Armature component includes permanent magnet；Armature component can be in the first position close to the electromagnet and the first rotor and away from axial movement between the electromagnet and the second place of the first rotor；When armature component moves to first position, the permanent magnet of armature component can attract each other with the soft magnetic materials so that in the first electric current of the reduction first direction or in the case where disconnecting the first electric current of first direction, the armature component can be maintained at first position.
Description
Technical field
The present invention relates to electromagnetic clutch, particularly for the engine-cooling system of automobile or the electromagnetism of air-conditioning system from
Clutch.
Background technology
Electromagnetic clutch is that one kind carries out clutch action (that is, the transmission and interruption of realizing power) under electromagnetic force
Device, it is by controlling the on/off electricity of the magnet coil in clutch the engagement of clutch with separating.Electromagnetic clutch is wide
It is general to be used for the various fields such as machinery, electronic/electrical gas, such as engine-cooling system, air-conditioning system for automobile etc..
By taking engine-cooling system as an example, the system is to ensure one of critical system of automobile normal work.Engine is cold
But system includes water pump, and it pumps coolant, coolant is quickly flowed in engine cooling circuit, to absorb engine work
As when the heat that produces, the temperature of engine is maintained under normal or optimum working temperature.Generally, engine is in water temperature
(temperature of coolant) reaches optimum Working when being 90 degree.The belt wheel (driving wheel) of the water pump of some existing automobiles and rotating shaft
It is directly connected to, therefore, water pump is operated always after the startup of automobile one, and the coolant of driving engine interior is constantly circulated.It is this
It is very slow that circulation causes the temperature of engine during automobile starting to rise.Water temperature is set to reach about 90 degree if desired, in pure idling mode
Under, the warm-up period of engine needs about 20 minutes.
Therefore, the design that belt wheel is connected with water pump is disconnected in automobile starting prior art has proposed a kind of, this
Engine warm-up time can be reduced to about 5 minutes.Warm-up period is greatly shortened, and engine can be made full out to reach most preferably
Working condition, reduces fuel consumption, more energy-conserving and environment-protective.
Chinese patent application discloses CN102216639A and discloses such a existing design.Pass through actuator (electromagnetic wire
Circle) power on/off and back-moving spring realizes adhesive/separation of actuator means 160, and then wind spring 104 is driven radially
Shrink or expand, realize that belt wheel disconnects or engaged with water pump.Disconnecting the connection of belt wheel and water pump needs actuator (electromagnetic wire
Circle) remain "on" position about 5 minutes.
But, prolonged electrical current can make actuator (magnet coil) generate heat, and then can make actuator winding resistance
Increase, electric current declines, so that actuator electromagnetic force declines, further causes and moves with the hand device return, wind spring is lost about
Beam and be radially expanded into drive member inner surface, finally cause clutch separation to fail.
In addition, actuator means 160 are without polarity, therefore realized only by the electromagnetic force of electromagnet to actuator means
Adhesive, this for electromagnet electromagnetic force require it is higher, i.e. it is big for current requirements.Therefore, energy consumption can be increased, shorten electricity
Magnet service life.
Moreover, coil spring coil is when being expanded to clutch inner surface, due to coil internal stress control problem or
Surface is due to caused coefficient of friction change when temperature change has condensed water, it may occur that frictional force is not enough, causes clutch
Device couple drive fails.
Patent application publication US 2010/0263981A1 discloses another existing design.Disclosed clutch is set
It is equipped with：Permanent magnet 9；Corresponding magnetic conductive device 10,11；Electromagnet 8；The armature 3 that soft magnetic materials is made；And rotor 2a.Electromagnet
During the electric current of logical first direction, the magnetic field superposition and collective effect of electromagnet and permanent magnet apply effect to the left to armature
Power, armature is moved to left side, and the gap of system and rotor diminishes, and permanent magnet/rotor increases the active force of armature, and will can hold in the mouth
Iron is maintained at leftward position, and now electromagnet can disconnect or reduce electric current.During electromagnetism Tie Tong opposite direction electric current, electromagnet produce with
The opposite magnetic field of permanent magnet, to offset active force of the permanent magnet to armature, now active force suffered by armature diminishes, and in spring
It is mobile to the right under active force to reset.
In the program, electromagnet needs to offset the magnetic field of permanent magnet when making armature disconnect with rotor, rather than directly right
Armature acts power, so as to need the offer high current on electromagnet to realize the function, is unfavorable for saving the energy, and greatly
Electric current is larger for the impact of electrical system.
In addition, directly transmitting the torque of belt wheel by the adhesive of armature and rotor in the program, the intensity for armature has
High requirement, armature is easier to produce big abrasion.
Japanese patent application discloses TOHKEMY 2007-205513 and discloses another existing design, and its clutch is provided with
Armature 21 that electromagnet 23, rotor 22, soft magnetic materials are made, fixed permanent magnet 28 and elastomer 29 in the rotor.With it is foregoing
Similarly, when electromagnet connects the electric current of first direction, electromagnet is common to armature with permanent magnet for U.S. Patent Application Publication
Apply active force, armature is drawn to left side, the gap between armature and permanent magnet and rotor diminishes, work of the permanent magnet to armature
Firmly become big, and armature only can be maintained at by left side by permanent magnet.Now, electromagnet can power off or reduce electric current.
When electromagnet connects opposite direction electric current, electromagnet produces the magnetic field opposite with permanent magnet, to offset work of the permanent magnet to armature
Firmly, armature is mobile to the right under elastomer effect resets.In the program, electromagnet is needed when making armature be disconnected with rotor
The magnetic field of permanent magnet is offset, rather than power is directly acted to armature, which needs to provide high current on electromagnet
The reset of armature could be realized, is unfavorable for saving the energy, and high current is larger for the impact of electrical system.
Chinese utility model patent bulletin CN202040232U discloses another existing design.In disclosed clutch
In, permanent magnet 21 is provided with sucker 2.Sucker keeps normality engagement state with belt pulley.When magnet coil 11 is powered, produce
The magnetic field repelled with permanent magnetism iron phase, belt pulley is separated with sucker, i.e. belt pulley disconnects with water pump.In the program, for electromagnetic wire
The electromagnetic force of circle requires higher, i.e. big for current requirements, can increase energy consumption, and shorten electromagnet service life.Other electromagnetism
Coil needs to be kept for longer conduction time, and easily heating, can equally increase energy consumption.Pass through the suction of sucker and belt pulley in the program
The torque for directly transmitting belt pulley is closed, the intensity for sucker has higher requirements, sucker is easier to produce big abrasion.
Chinese utility model patent bulletin CN203769916U discloses another existing design, wherein, in the first rotation
The first magnet 501 is fixed with body 2, the first magnet is circumferentially arranged, and diametrically opposite polarity.Powered off in electromagnetic core 6
When, adhesive disk 7 is attracted to be engaged with the first rotary body 2 by permanent magnet, and the rotation of the first rotary body is transferred into the second rotation
Body 3.When electromagnetic core is powered, adhesive disk 7 is separated from the first rotary body, the first rotary body 2 is separated with the second rotary body 3.Should
In scheme, adhesive disk is also soft magnetism, and non-permanent magnet, when electromagnetic core is powered, it is necessary to offset the magnetic field of permanent magnet, rather than
Power directly is acted to adhesive disk, it is necessary to high current, high energy consumption；When needing to disconnect the connection of adhesive disk and belt pulley, electricity
Magnetic core needs to be powered for a long time, the problem of also producing heating and high energy consumption.In addition, adhesive disk is directly turned round by the transmission that rubs
Square, the intensity for adhesive disk has higher requirements.
The content of the invention
The technical problems to be solved by the invention are to provide one kind, and there is smaller power to consume and have long service life
Electromagnetic clutch.
The invention discloses a kind of electromagnetic clutch, including：Rotating shaft with axis；Active for receiving external impetus
Wheel；It is installed on the driven wheel assembly in the rotating shaft；Electromagnet, when being powered to the electromagnet, the electromagnet can be produced
Magnetisation；Armature component, the armature component can be axially moved along the direction of the shaft axis；With the armature group
The axial movement of part, the driven wheel assembly can be in the bonding station engaged with driving wheel and the separation separated with driving wheel position
Moved between putting；Elastic component, the elastic component applies active force to the armature component；Characterized in that, the electromagnetic clutch
Device also includes the first rotor, and the first rotor is located between electromagnet and armature component and including soft magnetic materials；Wherein：Institute
Stating armature component includes permanent magnet；The armature component can the first position close to the electromagnet and the first rotor with it is remote
It is axially moved between the second place of the electromagnet and the first rotor；When the first electricity for applying first direction to the electromagnet
During stream, by the attraction between the electromagnet and the armature component permanent magnet, the armature component can be towards first
Move position；When the armature component moves to first position, the permanent magnet of the armature component can be with described first turn
The soft magnetic materials of son attracts each other so that is reducing the first electric current of the first direction or is disconnecting the first of first direction
In the case of electric current, the armature component can be maintained at first position；The elastic component is along making the armature component to the
The direction of two positions motion applies active force to the armature component；And when opposite with first direction to electromagnet application
Second direction the second electric current when, mutually exclusive, the armature between the permanent magnet of the electromagnet and the armature component
Component is moved under the active force collective effect of this repulsive force and the elastic component to the second place.
The present invention has following technique effect：
Electromagnetic force for electromagnet requires smaller, i.e., energy-conservation small for current requirements；And extend electromagnet to use
Life-span.
Brief description of the drawings
Fig. 1 is the decomposition diagram of the electromagnetic clutch according to the present invention；
Fig. 2 is the cross-sectional view according to electromagnetic clutch of the invention in the assembled state；
Fig. 3 is the cross section and perspective according to electromagnetic clutch of the invention in the assembled state；
Fig. 4 is the perspective view of the driving wheel of the electromagnetic clutch according to the present invention；
Fig. 5 is the cross-sectional view of the driving wheel of the electromagnetic clutch according to the present invention；
Fig. 6-7 is the perspective view of the driven pulley of the electromagnetic clutch according to the present invention；
Fig. 8 is the cross-sectional view of the driven pulley of the electromagnetic clutch according to the present invention；
Fig. 9-10 is the perspective view of the wedge of the electromagnetic clutch according to the present invention；
Figure 11 is the side view of the wedge of the electromagnetic clutch according to the present invention；
Figure 12 is the side view of the armature bracket of the electromagnetic clutch according to the present invention；
Figure 13 is the perspective view of the armature bracket of the electromagnetic clutch according to the present invention；
Figure 14 is the fragmentary, perspective view of the armature bracket of the electromagnetic clutch according to the present invention.
Embodiment
Below with reference to the accompanying drawings the electromagnetic clutch according to the present invention is introduced.Fig. 1-3 show according to the present invention electromagnetism from
Clutch.
Casing assembly, rotating assembly, electromagnet assembly, driving wheel are mainly included according to the electromagnetic clutch 100 of the present invention
Component, driven wheel assembly.
Casing assembly includes housing 1, the impeller 27 being installed on one of outside of housing 1 (left side is illustrated in Fig. 1)
And positioned at impeller bearing-seal assembly (also referred to as water seal) 14 between the two.Housing 1 includes the cylindrical wall 1a for limiting hole
And reinforcement 1b, as shown in Figure 1.
Rotating assembly includes rotating shaft 7a and the bearing 7 being installed on rotating shaft 7a.Rotating assembly is from opposite with impeller 27 one
Side is installed in the hole of housing 1 so that bearing 7 is overall to be substantially contained in the hole of housing 1 and rotating shaft 7a one end is prolonged
Reach to be engaged with impeller 27 and impeller bearing-seal assembly 14 outside housing, as shown in Figure 2.
Formula assembling retainer ring 29 is washed off to be arranged on the cylindrical wall 1a of housing 1 with by electromagnet assembly described below
(specifically, iron yoke) is assemblied on housing 1.The assembling retainer ring 29 has the junction surface engaged respectively with each reinforcement 1b,
When electromagnet assembly is arranged on housing, to be positioned in a circumferential direction relative to cylindrical wall 1a.
Electromagnet assembly includes iron yoke 24 and the magnet coil 32 being positioned in iron yoke 24.Electromagnet assembly is arranged on housing
On 1 and installed in the active for being used to receive external impetus (such as power or other external impetus from automobile engine)
Take turns in (belt wheel) 2, electromagnet assembly side is against assembling retainer ring 29, the radial direction of the neighbouring driving wheel 2 described below of opposite side
Part 2b, as shown in Figure 1, 2.Iron yoke 24 can for example be formed by soft magnetic material, and magnet coil 32 can be in iron yoke 24 after being powered
Upper generation magnetic pole.
By the socket 28 and slotting for automobile cable to be connected to for being fixed to the end of magnet coil in iron yoke 24
The connector that plug 25 on seat 28 is constituted electrically connects the cable of automobile with the magnet coil of electromagnet, to be supplied to electromagnet
Electricity or power-off.
Driving wheel 2 is the main member of electromagnetic clutch active part, preferably belt wheel.In other embodiments, actively
Wheel can also be other components, and belt wheel can be fixedly connected with the driving wheel.
Fig. 4 and Fig. 5 show the construction of driving wheel 2, and wherein Fig. 4 is the perspective view for showing driving wheel, and Fig. 5 is to show actively
The sectional view of wheel.
As shown in Figures 4 and 5, driving wheel include cylindrical wall 2a and at axial certain position from cylindrical wall 2a radially to
Interior extension, radial component 2b in form of annular rings.In the exemplary embodiment, radial component 2b it is preferred with cylindrical wall 2a
Axial middle position is integrally disposed upon in driving wheel 2.But, the invention is not restricted to this, radial component 2b can also be according to reality
Border situation is arranged on other axial positions in driving wheel 2.
When the radial component 2b of driving wheel 2 is made for soft magnetic materials, the radial component can be considered as the first rotor；When
The radial component of driving wheel be non-soft magnetic materials when, can also set one relative to driving wheel fix, by soft magnetic materials system
Into the first rotor.
As Figure 1-3, electromagnet assembly is arranged in driving wheel 2, close to (first turn of the radial component of driving wheel 2
Son).
As illustrated in figures 4-5, the first rotor 2b is provided with magnet isolation tank 2c, and the magnet isolation tank enables the specific magnetic fields of electromagnet to wear
Cross the first rotor and act on the armature component being described below.It can for example make electromagnet that radially-arranged opposite pole is presented
Property, with the permanent magnet of the radial distribution magnetic pole corresponding to armature component；Or make electromagnet that single polarity is presented in axis direction,
With the permanent magnet of the axial distributed polar corresponding to armature component.
Next the secondary part of electromagnetic clutch is described.
Secondary part mainly includes the armature component being made up of armature 19 and armature bracket 31 and by driven pulley 18 and wedge shape
The driven wheel assembly that block 20 is constituted.Secondary part is arranged on the radial component 2b of driving wheel 2 sides opposite with electromagnet assembly, borrows
Help the radial part of the cylindrical-shaped main body and driving wheel 2 of bearing 33 and the radially mounted driven pulley 18 described later of back-up ring 34
Between part.
Armature component include radially or axial distributed polar permanent magnet, such as radially inner side is N poles, and radial outside is
S poles, vice versa；Or axial side is N poles, opposite side is S poles.Preferred scheme is radial distribution, can so make electromagnetism
Electromagnetic force required for iron component is minimum, i.e., electric current is minimum, and energy consumption is minimum.In the present embodiment, the armature to annular is passed through
19 are magnetized, and armature 19 is turned into permanent magnet.In an alternative embodiment, magnet structure can be provided on armature 19
Multiple circular or annular component.Armature is installed together by screw 23 with armature bracket 31.
The driven wheel assembly being made up of driven pulley 18 and wedge 20 is axially mounted between armature 19 and armature bracket 31.
Driven pulley 18 as shown in figs 6-8, has：Axially extending cylindrical-shaped main body, and for fixing (can be interference fit, can also
Other mounting means) in rotating shaft 7 (referring to Fig. 2)；And between multiple grades that the end away from driving wheel is radially extended
Every radial arm 18a of the distribution (on circumferencial direction).The radial arm is provided with mounting hole, for armature bracket 31, wedge 20 to be led to
Voussoir axle 22 is crossed to be installed on radial arm.In the example shown, three radial arms are provided with.But the invention is not restricted to this, can
To be arranged as required to multiple radial arms that quantity is different from three.
Alternatively, driven pulley 18 could be arranged to double-decker in the axial direction, and its left side (close to driving wheel side) is set
There is the cirque structure that soft magnetic materials is made, it can be used as the second rotor 181；Its right side (away from driving wheel side) is provided with
Multiple radial arm 18a as described above.Radial arm 18a can be the cylindrical-shaped main body Integral design with driven pulley 18, can also
It is that the part separated is fixed together by welding or other modes with cylindrical-shaped main body.Alternatively, multiple radial arm 18a
It can also be the single loop configuration radially extended from cylindrical-shaped main body.
In the case where being provided with the second rotor 181, wedge 20 is housed in the double-deck of driven pulley by voussoir axle 22 and tied
Between structure, i.e., between the second rotor 181 and multiple radial arm 18a.Also, 31 points of armature 19 and armature bracket in armature component
The axial both sides of the second rotor 181, wherein left side of the armature 19 in Fig. 1, the right side of the armature bracket 31 in Fig. 1 are not arranged on
Side.
As shown in figs. 9-11, wedge 20 include swing arm 20a and wedge surface 20b, swing arm 20a by voussoir axle 22 be arranged on from
On the radial arm 18a of driving wheel 18.Wedge 20 can rotate around voussoir axle 22.In the present embodiment, voussoir axle 22 and driven pulley 18
Radial arm 18a matching relationship and voussoir axle 22 can be respectively with the matching relationship of wedge 20：A is interference fitted and gap
Coordinate；Or b gaps coordinate and gap coordinates；Or c gaps coordinate and are interference fitted.
The radial arm 18a of driven pulley 18 coordinates with the left end counterbore punching press of voussoir axle 22, forms voussoir axle to radial arm 18a's
The stop surface of left end.The diameter of axle that voussoir axle 22 is engaged with armature bracket 31 is more than the radial arm 18a of voussoir axle 22 and driven pulley 18
The diameter of axle of cooperation, so as to be formed to the stop surface on the right side of driven pulley.Whereby, voussoir axle is limited on the driven wheel axially.Rank
Brandreth 31 also by voussoir axle 22 be arranged on driven pulley 18 (radial arm) on, by the guiding constraint of voussoir axle 22 (voussoir axle 22 with
Armature bracket 31 is that gap coordinates), and can axial reciprocating movement.When armature component is moved to left side (first position), armature bracket
31 are connected to the right side of the radial arm of driven pulley, and when armature component is moved to right side (second place), armature is connected to driven
The end face in the left side of wheel, i.e. driven pulley can in the axial direction to armature component mobile carry out limit stops.
As shown in figs. 12-14, armature bracket 31 has the annular body 31a and multiple U being arranged on annular body periphery
Shape shift fork 31b.Shift fork include the first driving lever 31b1 and the second driving lever 31b2, the first driving lever, the second driving lever lateral surface relative to turn
Axle axis can be cylindrical surface or plane；Mating surface 311,312 phases on first, second driving lever with wedge
It is helicoid or tapered plane for shaft axis, the tapered plane intersects and out of plumb with the axis of rotating shaft.In preferred scheme, match somebody with somebody
Conjunction face is helicoid.
When armature component, which is driven, in axial direction to be moved, mating surface promotes the wedge 20 on voussoir axle 22,
There is the force component tangent with circumferencial direction in this motive force so that wedge rotates around voussoir axle, i.e. by the axle of armature component
The rotary motion of wedge circumferencial direction is converted into motion, so that the inner cylindrical of the wedge surface of wedge 20 and driving wheel 2
Mantle friction is engaged or separated.
Alternatively, profile is provided with voussoir 20 in cylinder or the ferrule 20c of arc, ferrule 20c one or dress
With being arranged on voussoir 20, it is engaged to the mating surface 311,312 with armature bracket 31, reduces friction, make cooperation more smooth.
Fig. 2-3 shows the assembled state of electromagnetic clutch, and cap component 3 coordinates with driving wheel to be installed, so that in electromagnetism
The side of clutch forms sealing cover.Mutual assembling between each part can be carried out using any means known, no longer be retouched in detail here
State.
The operation of electromagnetic clutch according to the present invention is described below with reference to Fig. 1.
When describing electromagnet assembly on/off electricity first, the axial movement of armature component.
When the polarity for leading to first direction electric current, the polarity of electromagnet assembly and the permanent magnet of armature component to electromagnet assembly
Conversely/attracting, act on armature component.Therefore, under electromagnetic force, armature 19 and 31 grams of armature bracket being installed together
The active force of elastic component is taken to the separation point position movement of first position, preferably clutch.
When armature component is moved to left side (first position), the permanent magnet in armature component can be made with soft magnetic materials
The first rotor 2b is attracted.The adhesive is the magnetic attraction for having gap, in other embodiments, corresponding to other clutches
Structure, the adhesive can also be the magnetic attraction with Mechanical Contact.Armature component is due to itself permanent magnet and the first rotor
Soft magnetic materials is attracting, therefore, that is, turns off the electric current of electromagnet, only pass through the permanent magnet and the soft magnetism of the first rotor of armature component
Armature component can also be maintained at first position by the magnetic attracting power effect of material, or can be by logical to electromagnet assembly
Armature component can be just maintained at first position by the electric current of reduction.
When the electric current to the logical second direction opposite with first direction of electromagnet assembly, the magnetic that electromagnet assembly is formed
Polarity it is identical with the permanent magnet polarity of armature component/repel each other, electromagnet assembly repels/promoted armature component sidesway to the right
It is dynamic.Under electromagnetic force and the collective effect of elastic component, making armature component, (second place, bonding station) is mobile to the right.Now,
The gap increase of armature component and the first rotor, the magnetic attracting power between armature component and the first rotor can be ignored, armature
Component can only be maintained at right side in the presence of elastic component.The power supply to electromagnet can now be stopped, to reduce energy consumption.
When being provided with the second rotor on the driven wheel, second rotor can be made up of soft magnetic materials.Work as armature component
When being moved to right side, with the second rotor adhesive, the adhesive can be the magnetic attracting for having Mechanical Contact, or have the magnetic in gap
Property adhesive.Armature component and bitrochanteric the suction-combining force and elastic component the active force collective effect of armature component is more ensured by
Armature component is maintained at right positions (second place).
By integrating a control unit on socket 28, such as one counting commutator can also pass through vehicle-mounted relay
Device directly controls the sense of current in magnet coil 32 to control the magnetic pole of electromagnet.
As described above, in the invention, electromagnet assembly is straight by the pole polarity identical or opposite with permanent magnet
Connect to apply the armature component containing permanent magnet and repel each other or attracting magnetic action power, it is not necessary to overcome permanent magnetism as existing patent
Body is to the active force of armature component or the magnetic field of counteracting permanent magnet.Therefore, in the invention, the effect of electromagnet assembly
Power can significantly reduce, and the electromagnetic clutch with U.S. Patent Publication, electromagnetism of the invention are disclosed relative to aforementioned Japanese patent
The size of electric current in iron component can be reduced to about half of electric current in the prior art.Meanwhile, it is moved to a left side in armature component
Behind side or right side, armature component can may remain in accordingly without electromagnet active force (or only needing very little active force)
Position, you can to stop the power supply (or only needing very little electric current) to electromagnet, energy consumption can be greatly decreased, i.e. heavy current pulse
Action time it is very short, can calculate in seconds.Relative to several minutes of action times of foregoing electromagnet of the prior art, at this
The action time of electromagnet assembly shortens two orders of magnitude in invention, greatly reduces the possibility of electromagnet heating.
Next description is when electromagnet assembly on/off is electric, with the axial movement of armature component, the fortune of driven wheel assembly
It is dynamic.
When the electric current to the logical second direction opposite with first direction of electromagnet assembly makes armature component (second to the right
Put, bonding station) it is mobile when, armature component (armature 19 and armature bracket 31) drives the armature 19 and armature bracket positioned at armature component
Driven wheel assembly between 31 is moved to the second place vertically.When armature bracket 31 is moved to the second place vertically, armature
Second driving lever 31b2 of the U-shaped shift fork of frame 31 mating surface 311 applies tangent with circumferencial direction to the ferrule 20c of wedge 20
Active force so that wedge 20 rotates around voussoir axle 22, and the axis of voussoir axle is parallel with shaft axis.Now, with voussoir
Axle 22 is that the direction that rotation axis engages the wedge surface of wedge 20 and the cylindrical wall 2a of driving wheel 2 inner surface rubbing surface turns
It is dynamic.After the cylindrical wall 2a of wedge surface and the driving wheel 2 of wedge 20 inner surface CONTACT WITH FRICTION, wedge 20 can by with rank
The rubbing action of the cylindrical wall 2a from driving wheel 2 of the motive force equidirectional of the mating surface 311 of brandreth 31 inner surface
Power, make wedge 20 and the cylindrical wall 2a of clutch driving wheel 2 inner surface keep Wedged to engage, and by therebetween
Frictional force promotes driven pulley 18 so as to transmitting rotary power to rotating shaft by voussoir axle 22.The Wedged, which is combined, refers to wedge
Wedge surface and driving wheel cylindrical wall the abutment of inner surface and the line of wedge rotation axis and wedge rotate
The line of axis and shaft axis is in an angle, and it is not that self-locking is combined that the Wedged, which is combined,.
Second driving lever 31b2 (driving lever for making wedge be engaged with driving wheel) is designed as elastic component, so that mating surface
311 preferably coordinate with wedge 20.Second driving lever 31b2 elastic deformation can make multiple (being three in illustrated example)
The pressure of wedge and belt wheel is basically identical.Assuming that because the reason for manufacturing tolerance/location tolerance, the engagement of wedge and belt wheel
Have after first having, then can make being combined with belt wheel inner surface for three wedge basic synchronizations by the elastic deformation of the second driving lever.
When armature bracket 31 is mobile by driving to first position direction with armature component, the first driving lever 31b1 of armature bracket 31
Mating surface 312 promote wedge 20 to be rotation axis to the wedge surface for making wedge 20 and the cylinder of driving wheel 2 with voussoir axle 22
The direction of shape wall 2a inner surface separation is rotated, so that wedge surface is separated with the cylindrical wall 2a of driving wheel 2 inner surface, is realized
The separation function of the rotary power of driving wheel and driven pulley so that driving wheel dallies relative to driven pulley.
Instead of, in other embodiments, the armature bracket can also be arranged on the left side of driven pulley together with armature,
By the inclination/direction of rotation for the mating surface for being arranged in correspondence with shift fork, it can equally realize armature component in axial first position
And during the movement of the second place, make the engagement of wedge and the inner surface of the cylindrical wall of driving wheel or separate.
As the elastic component 30 of second place keeper of secondary part, the direction away from the first rotor is applied in the axial direction
Plus active force is on armature component so that after the electric current of electromagnet assembly is disconnected, elastic component 30 can drive secondary part
The second place is returned to, in the second place, the adhesive of armature component (specifically, armature 19) and electromagnetic assembly is disconnected.Elastic component
Can be helical spring, can also plate-like spring, or wavy spring.Quantity can also also may be used according to needing to be set to one
To be multiple superpositions or scattering device.The mode of action can be stretching armature component or bias armature component.This reality
Apply in example, elastic component is a helical spring or multiple axially stacking wavy springs, its one end is biased in the end of rotating shaft
Or the bitrochanteric end face described below, the other end is biased on the armature bracket of armature component.In other embodiments, it is elastic
Part can also be the helical spring of multiple scattering devices, and its one end is abutted on the driven wheel, and the other end is connected on armature component.
Plate-like spring widely used in the art can certainly be used, concrete mode is repeated no more.
For secondary part, the other structures of prior art can be used, instead of above-mentioned shift fork-wedge shape agllutination of the invention
Structure.Such as Chinese patent application discloses the convolute coil and such as Japanese Patent Publication TOHKEMY described in CN200980145448.X
Ball-type structure described in 2007-205513.
When electromagnet fails, water pump may be stopped, and engine temperature rises.Armature component comprising permanent magnet exists
During by rising to curie point under the influence of water pump conduction heat, i.e. the armature component local environment temperature reaches design loss of excitation temperature
When spending, permanent magnet magnetism reduction or disappear, and then cause the soft of the permanent magnet of the armature component and the first rotor
The magnetic field that the electromagnet of adelphotaxy power between magnetic material or the first electric current with being applied with reducing is produced
Attraction force reduction between the permanent magnet of the armature component disappears, and then the elastic component is to the armature component
The active force of application makes the armature component be moved to the second place；When the armature component of permanent magnet returns to design temperature,
Its magnetic can be recovered, or magnetic order recovers, and permanent magnet is magnetized by electromagnet assembly, i.e., permanent magnet is impermanency
The material of loss of excitation, recovers to design load in the magnetic or magnetic force of the permanent magnet of armature component, and electromagnetic clutch still can be with
Normal work.
Under the circumstances, it is preferable that as in exemplary embodiment of the present, by armature component and secondary part
It is configured to when armature component is located at the second place (adhesive of armature component is disconnected), the wedge and driving wheel of secondary part
Inner surface wedging.Therefore, when armature component and the suction-combining force or armature component and the suction-combining force of the first rotor of the first rotor
When being less than elastic component to the active force sum of armature component to the active force of armature component with electromagnet, armature component is to the right
(second place) is mobile, makes wedge 20 along the direction for making its wedge surface be engaged with the cylindrical wall 2a of driving wheel 2 inner surface
Rotate, make wedge and the cylindrical wall 2a of driving wheel inner surface keep Wedged to engage, and by frictional force therebetween
Driven pulley 18 is promoted so as to which rotary power is transferred into rotating shaft by voussoir axle 22, with driven pump working, and then realized
The Safe Failure of electromagnetic clutch.
In the present invention, the less elastic component 30 of elastic force can be used, will can so be held in the mouth to the less electric current of electromagnetism Tie Tong
Iron component attracts to be moved to the left, and electromagnet is not easy heating.
In addition, in the present invention, due to making wedge by axial rotary of voussoir axle along making its wedge surface and clutch master
The direction of the cylindrical wall 2a of driving wheel inner surface contact is rotated, when the circle of the wedge surface (rubbing surface) and clutch driving wheel of voussoir
After cylindrical wall 2a inner surface contact, voussoir can be by mating surface (being preferably helicoid) motive force equidirectional with armature bracket
, the friction force of the inner surface of cylindrical wall 2a from driving wheel, make the inner surface of voussoir and clutch driving wheel
Keep Wedged engagement；Also, the moment of torsion of clutch transmission is bigger, must be tighter with regard to wedge between voussoir and driving wheel, the torsion of transmission
Square is bigger.Both recurring structures are destroyed as long as the moment of torsion transmitted is not more than, transmission failure would not occur in clutch
Situation.By means of such design feature, even in thering is water or oil to cause to rub between the rubbing surface between voussoir and driving wheel
Wipe coefficient degradation when, also due to Wedged combine effect and keep clutch can transmit design need moment of torsion.
By electromagnet electromagnetic force the armature comprising permanent magnet under electromagnetic force with the rank that is installed together
When brandreth is located at bonding station (first position) or separation point position (second place), after electromagnetic force disappearance, due to itself forever
Magnet and periphery ferromagnetic component (soft magnetic materials) are attracting and present position can be kept constant, so as to realize that position keeps work(
Can, can shorten dramatically the working time of electromagnet.As long as armature can be pushed or pull on bonding station or separation point position,
It can just cut off the electricity supply, so that the magnet coil winding conduction time of clutch is extremely short, will not produce makes electricity because of heating
The rough sledding of magnet function reduction.
Although describing the present invention by reference to example embodiment, it is understood that the invention is not limited in described
Example embodiment.The scope of following claim is by according to broadest explanation, to include all these versions
And equivalent 26S Proteasome Structure and Function.
Claims (14)
1. a kind of electromagnetic clutch, including：
Rotating shaft with axis；
Driving wheel for receiving external impetus；
It is installed on the driven wheel assembly in the rotating shaft；
Electromagnet, when being powered to the electromagnet, the electromagnet can produce magnetic field；
Armature component, the armature component can be axially moved along the direction of the shaft axis；
With the axial movement of the armature component, the driven wheel assembly can the bonding station engaged with driving wheel and with
Moved between the separation point position of driving wheel separation；
Elastic component, the elastic component applies active force to the armature component；
Characterized in that,
The electromagnetic clutch also includes the part with soft magnetic materials；Wherein：
The armature component includes permanent magnet；
The armature component can close to the electromagnet first position with away from the electromagnet the second place countershaft
To motion；
When applying the first electric current of first direction to the electromagnet, pass through the electromagnet and the armature component permanent magnet
Between attraction, the armature component can move towards first position；
When the armature component moves to first position, the permanent magnet of the armature component can be mutual with the soft magnetic materials
Attract so that in the first electric current of the reduction first direction or in the case where disconnecting the first electric current of first direction, institute
First position can be maintained at by stating armature component；
The elastic component edge makes the direction that the armature component is moved to the second place apply active force to the armature component；With
And
When applying the second electric current of the second direction opposite with first direction to the electromagnet, the electromagnet and the rank
Mutually exclusive between the permanent magnet of iron component, the armature component is common in the active force of this repulsive force and the elastic component
Moved under effect to the second place.
2. electromagnetic clutch as claimed in claim 1, wherein：When the first electric current for applying first direction to the electromagnet
When, the attraction force between the permanent magnet of the electromagnet and the armature component can overcome the elastic component to the rank
The active force that iron component applies makes the armature component be moved to first position；And
When the armature component moves to first position, the permanent magnet of the armature component can be between the soft magnetic materials
Adelphotaxy power can individually or with the electromagnet and the armature of the first electric current for being applied with reducing
Attraction force between the permanent magnet of component overcomes the elastic component to the active force that the armature component applies and incited somebody to action together
The armature component is maintained at first position.
3. electromagnetic clutch as claimed in claim 1, wherein：It is described when the armature component is in the first position
There is certain interval between armature component and the part with soft magnetic materials.
4. electromagnetic clutch as claimed in claim 1, wherein：When the armature component moves to first position, it is described from
Drive wheel assemblies rotary motion is to the separation point position, when the armature component moves to the second place, the driven wheel assembly
Rotary motion is to the bonding station.
5. electromagnetic clutch as claimed in claim 1, wherein：The driving wheel has the annular radial portion radially extended
Part, the radial component is the part with soft magnetic materials and forms the first rotor.
6. electromagnetic clutch as claimed in claim 1, wherein：The part with soft magnetic materials is the electromagnet assembly
Iron yoke.
7. electromagnetic clutch as claimed in claim 5, wherein：The driven wheel assembly also includes the second rotor, described second
Rotor includes soft magnetic materials；When the armature component moves to the second place, the permanent magnet of the armature component and institute
Bitrochanteric soft magnetic materials is stated to attract each other.
8. electromagnetic clutch as claimed in claim 7, wherein：The first rotor and the second rotor are located at the armature respectively
The axis direction both sides of the permanent magnet of component.
9. electromagnetic clutch as claimed in claim 1, wherein：The armature component includes the armature and use of permanent magnet
In the armature bracket for installing the armature.
10. electromagnetic clutch as claimed in claim 9, wherein：Armature is separately positioned on the axle of driven wheel assembly with armature bracket
Line direction both sides.
11. the electromagnetic clutch as any one of claim 1-10, wherein：The permanent magnet right and wrong of the armature component are forever
Long property loss of excitation material.
12. the electromagnetic clutch as any one of claim 1-10, wherein：The elastic component is helical spring, piece shape
Spring or wavy spring.
13. the electromagnetic clutch as any one of claim 1-10, wherein：The elastic component is wavy spring, one
End is biased in the end face of rotating shaft, and the other end is biased on armature bracket component.
14. the electromagnetic clutch as any one of claim 1-10, wherein：The armature component has opposite in radial direction
Magnetic pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164197.1A CN105570341B (en) | 2015-04-17 | 2015-04-17 | Electromagnetic clutch |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182399.4A CN104747621A (en) | 2015-04-17 | 2015-04-17 | Electromagnetic clutch |
| CN201610164197.1A CN105570341B (en) | 2015-04-17 | 2015-04-17 | Electromagnetic clutch |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510182399.4A Division CN104747621A (en) | 2015-04-17 | 2015-04-17 | Electromagnetic clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105570341A CN105570341A (en) | 2016-05-11 |
| CN105570341B true CN105570341B (en) | 2017-10-24 |
Family
ID=53587747
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610164197.1A Expired - Fee Related CN105570341B (en) | 2015-04-17 | 2015-04-17 | Electromagnetic clutch |
| CN201510182399.4A Pending CN104747621A (en) | 2015-04-17 | 2015-04-17 | Electromagnetic clutch |
| CN201620241000.5U Withdrawn - After Issue CN205503810U (en) | 2015-04-17 | 2016-03-25 | Electromagnetic clutch |
| CN201610179231.2A Expired - Fee Related CN105605121B (en) | 2015-04-17 | 2016-03-25 | Electromagnetic clutch |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510182399.4A Pending CN104747621A (en) | 2015-04-17 | 2015-04-17 | Electromagnetic clutch |
| CN201620241000.5U Withdrawn - After Issue CN205503810U (en) | 2015-04-17 | 2016-03-25 | Electromagnetic clutch |
| CN201610179231.2A Expired - Fee Related CN105605121B (en) | 2015-04-17 | 2016-03-25 | Electromagnetic clutch |
Country Status (2)
| Country | Link |
|---|---|
| CN (4) | CN105570341B (en) |
| WO (1) | WO2016165648A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570341B (en) * | 2015-04-17 | 2017-10-24 | 盖茨胜地汽车水泵产品(烟台)有限责任公司 | Electromagnetic clutch |
| CN107191260A (en) * | 2017-05-10 | 2017-09-22 | 苏州睿昕汽车配件有限公司 | A kind of electromagnet Water pump clutch |
| WO2019061417A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市艾莱茵科技有限公司 | Electromagnetic clutch and gearbox |
| CN108511645B (en) * | 2018-03-30 | 2021-06-22 | 杨胜 | Battery pack of pure electric vehicle |
| CN108952934B (en) * | 2018-06-25 | 2023-11-24 | 嘉兴兴涛汽车零部件有限公司 | Water pump clutch power-on differential device |
| CN111866327A (en) * | 2019-04-30 | 2020-10-30 | 北京小米移动软件有限公司 | Pop-up camera module and terminal |
| CN111853085B (en) * | 2020-08-28 | 2024-04-26 | 北京明正维元电机技术有限公司 | Double-input-shaft electromagnetic parallel double clutch |
| KR102565075B1 (en) * | 2021-09-13 | 2023-08-09 | 대동모벨시스템 주식회사 | Vehicle shift by wire clutch apparatus |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5119918A (en) * | 1991-10-11 | 1992-06-09 | Dana Corporation | Electromagnetic clutch with permanent magnet brake |
| JP2000356228A (en) * | 1999-06-17 | 2000-12-26 | Toyota Auto Body Co Ltd | Electromagnetic clutch |
| JP2005188559A (en) * | 2003-12-24 | 2005-07-14 | Ntn Corp | Electromagnetic clutch |
| JP4073911B2 (en) * | 2004-12-13 | 2008-04-09 | 三菱電機株式会社 | Electromagnetic clutch |
| DE102009017566A1 (en) * | 2009-04-17 | 2010-10-21 | Licos Trucktec Gmbh | Flip-flop coupling |
| JP5672976B2 (en) * | 2010-11-01 | 2015-02-18 | 株式会社ジェイテクト | Electromagnetic clutch |
| JP5451578B2 (en) * | 2010-11-05 | 2014-03-26 | 小倉クラッチ株式会社 | Electromagnetic clutch |
| CN102287457B (en) * | 2011-04-21 | 2013-04-24 | 成都瑞迪机械实业有限公司 | Electromagnetic clutch |
| CN105264195B (en) * | 2013-06-14 | 2018-06-26 | 皮尔伯格泵技术有限责任公司 | There is the coolant pump of plasticity bonded permanent magnet |
| CN203374690U (en) * | 2013-06-27 | 2014-01-01 | 昕芙旎雅有限公司 | Electromagnetism connection device |
| CN103615477B (en) * | 2013-11-28 | 2015-11-25 | 龙口中宇机械有限公司 | Centrifugal magnetic clutch and use the water pump of this clutch |
| CN105570341B (en) * | 2015-04-17 | 2017-10-24 | 盖茨胜地汽车水泵产品(烟台)有限责任公司 | Electromagnetic clutch |
| CN204921764U (en) * | 2015-04-17 | 2015-12-30 | 盖茨胜地汽车水泵产品(烟台)有限责任公司 | Electromalgnetic clutch |
| CN104747620B (en) * | 2015-04-17 | 2017-08-18 | 盖茨胜地汽车水泵产品(烟台)有限责任公司 | Electromagnetic clutch |
| CN204610615U (en) * | 2015-04-17 | 2015-09-02 | 盖茨胜地汽车水泵产品(烟台)有限责任公司 | Magnetic clutch |
-
2015
- 2015-04-17 CN CN201610164197.1A patent/CN105570341B/en not_active Expired - Fee Related
- 2015-04-17 CN CN201510182399.4A patent/CN104747621A/en active Pending
-
2016
- 2016-03-25 CN CN201620241000.5U patent/CN205503810U/en not_active Withdrawn - After Issue
- 2016-03-25 CN CN201610179231.2A patent/CN105605121B/en not_active Expired - Fee Related
- 2016-04-15 WO PCT/CN2016/079399 patent/WO2016165648A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN205503810U (en) | 2016-08-24 |
| CN105605121A (en) | 2016-05-25 |
| CN104747621A (en) | 2015-07-01 |
| WO2016165648A1 (en) | 2016-10-20 |
| CN105605121B (en) | 2017-11-24 |
| CN105570341A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105570341B (en) | Electromagnetic clutch | |
| EP2732176B1 (en) | Rotational coupling device with flux leakage path insulator | |
| US20060165539A1 (en) | Device for transmitting the rotating movement to a driven shaft, in particular for fluid recirculating pumps | |
| CN101836003A (en) | Power transmitter | |
| CN102200048B (en) | Water pump for vehicle | |
| CN104747620B (en) | Electromagnetic clutch | |
| EP1653061A1 (en) | Device for transmitting the rotating movement to a driven shaft, in particular for fluid recirculating pumps | |
| CN204921764U (en) | Electromalgnetic clutch | |
| CN108231325B (en) | Rotary electromagnet | |
| CN107093938B (en) | Magnetic suspension motor and household air conditioner | |
| EA026539B1 (en) | Electromagnetic driving device and methods for manufacturing and controlling same | |
| CN204610615U (en) | Magnetic clutch | |
| US11894736B2 (en) | Planar high torque electric motor | |
| EP2630384B1 (en) | Variable speed magnetic coupling | |
| EP1659307A2 (en) | Device for transmitting the rotating movement to a driven shaft, in particular for fluid recirculating pumps | |
| EP3987162B1 (en) | Coolant pump for a vehicle | |
| US11692596B2 (en) | Axially oriented linear actuator including single stator coil, and clutch assembly having the actuator | |
| EP3953597B1 (en) | Rotational coupling device with flux conducting bearing shield | |
| JP2017214971A (en) | Electromagnetic clutch | |
| CN208089399U (en) | A kind of electromagnetic clutch device of fan postposition | |
| JP2000192996A (en) | Magnetically attracting connecting device | |
| CN1824964A (en) | Device for delivering rotating motion to driven axle, in particular for use in fluid recirculating pump | |
| CN116576012A (en) | Safe electromagnetic reversing fan device and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20210417 |