CN102606275B - Electromagnetic fan clutch with opposite iron cores - Google Patents

Abstract

The invention relates to an electromagnetic fan clutch with opposite iron cores in transmitting rotating motion and aims at providing the electromagnetic fan clutch which is provided with a totally novel structure and composed of an electromagnetic iron core device with a totally novel structure for a clutch. The electromagnetic fan clutch comprises iron core grooves (12 and 13) arranged on an electromagnetic iron core body (11) in the axially opposite direction. A first suction gap (841) and a second suction gap (842) are respectively arranged on two sides of the opposite electromagnetic iron core body (11).

Description

There is the electromagnetic fan clutch of opposed iron core

Technical field

The present invention relates to have the clutch of conveying rotary motion, particularly relate to the electromagnetic fan clutch with electromagnetic core.

Background technique

For the present invention, those skilled in the art can be with reference to Chinese patent literature, and denomination of invention is " electromagnetic fan clutch of the automobile-used powerful soft drive of high-power heavy type ", and publication number is the patent text of " CN101968004A ".

For the present invention, those skilled in the art can also be with reference to being proposed by claimant, the applying date is on December 07th, 2010, application number is 201010588608.2, denomination of invention is the Chinese patent application of " a kind of Design of The Electromagnetic Fan-clutch ", and the applying date is on December 07th, 2010, application number is 201020659237.8, denomination of invention is the Chinese patent application of " a kind of Design of The Electromagnetic Fan-clutch ", and the applying date is on December 27th, 2010, application number is 201010621450.4, denomination of invention is the Chinese patent application of " with the magnet fixed disc of cyclone heat dissipation fan ", and the applying date is on December 27th, 2010, application number is 201020697219.9, denomination of invention is the Chinese patent application of " with the magnet fixed disc of cyclone heat dissipation fan ".

For the present invention, those skilled in the art can also be with reference to what be proposed by claimant, and open day is on March 17th, 2010, and publication number is CN101672210A, and denomination of invention is the related content of the application for a patent for invention of " three-speed electromagnetic fan clutch ".

Due to a variety of causes, in existing clutch, particularly in such as the aforementioned various Design of The Electromagnetic Fan-clutchs that exemplify, the volume that exists electromagnetic fan clutch and each constituent elements and device is excessive, poor stability, manufacture cost is higher, the shortcomings that the life-span is lower.

Particularly, in the manufacture process of electromagnetic fan clutch, traditional electrical magnetic core often adopts the form in the Fig. 1 recording as the present invention..First go out electromagnetic core body 1 ' with die casting, it has one or more openings all towards the circular groove 2 ', 3 ' of iron core body 1 ' the same side, places thereafter corresponding electromagnetic coil 7 ', 8 ' in circular groove 2 ', 3 '.Described electromagnetic coil 7 ', 8 ' has respectively paired Outlet 9 ', 10 ', 11 ', 12 ', then can be by passing such as going out on described single annular friction sheet in corresponding paired fairlead 16 ' by described Outlet, then inwardly offer adaptively corresponding wire lead slot according to the random site of described each fairlead 16 ' along described friction plate radial direction, so that by described lead end access relevant position, for example, live axle inside, described lead end is finally extended and is linked in corresponding power supply circuits.Finally more described single annular friction sheet 13 ' is fixed on the sidewall ora terminalis 6 ' of corresponding described circular groove opening by some spot welding, that is to say, described annular friction sheet 13 ' covers described sidewall ora terminalis 6 ' completely.The through hole 14 ' of described single annular friction sheet is greater than the excircle of electromagnetic core through hole 4 ' corresponding upper shield thereon.

Aforesaid electromagnetic core is because thereby the phase mutual interference meeting of described electromagnetic coil is offset a part of electromagnetic force and needed the actual requirement that adopts larger coil to meet the magnetic clutch in use to cause own vol and size all larger.Meanwhile, produce stress and fatigue owing to offering after fairlead or groove cause long-time friction to use on friction plate, and cause gap or crackle, thereby reduce the life-span of friction plate and overall magnetic clutch.In addition, this kind of form and structure cause its material therefor more, and manufacture cost is high, has a lot of manual factors in process portion, is unfavorable for mass production and becomes more meticulous processing.

Summary of the invention

The object of the invention is, a kind of electromagnetic fan clutch of brand new is provided.

Electromagnetic fan clutch of the present invention, is included in the iron core slot mutually arranging dorsad vertically on electromagnetic core body.

Electromagnetic fan clutch of the present invention, also comprises, the friction plate mutually arranging dorsad on described iron core slot.

Electromagnetic fan clutch of the present invention, also comprises, the coil mutually arranging dorsad holding in described iron core slot.

Aforementioned each technical characteristics has further reduced the size of fan clutch, and further saves materials being fabricated.

Electromagnetic fan clutch of the present invention, the each of described coil only has terminal to draw from the iron core through hole of described iron core body.

Electromagnetic fan clutch of the present invention, the bonding end of described coil is directly connected with described iron core body.

Electromagnetic fan clutch of the present invention, described terminal and bonding end are all positioned at the same side of described iron core body.

Aforementioned each technical characteristics has further reduced the size of fan clutch, and further saves materials being fabricated, makes wire structures more reasonable.

Electromagnetic fan clutch of the present invention, described iron core slot comprises the first circular groove and the second circular groove.

Electromagnetic fan clutch of the present invention, described iron core slot comprises the first square groove and the second square groove.

Electromagnetic fan clutch of the present invention, described friction plate comprises the large friction plate of annular and annular friction sheet, and the large friction plate of described annular is connected in described the first annular channel opening, and described annular friction sheet is connected in the second circular groove opening.

Aforementioned each technical characteristics has further reduced fan clutch size, and further saves materials being fabricated, makes fan clutch structure more reasonable.

Electromagnetic fan clutch of the present invention, the each of described iron core slot has enhancing line at opening end madial wall.

Electromagnetic fan clutch of the present invention, the depth of section of described enhancing line is 0.1 millimeter to 5 millimeters.

Aforementioned each technical characteristics has further improved bulk strength and the durability of fan clutch.

Electromagnetic fan clutch of the present invention, is provided with the first groove on the bottom end of the second described circular groove, the first half grooves, the second half grooves, the 3 half groove, the first through hole, the second through hole, third through-hole, fourth hole.

Aforementioned each technical characteristics has further reduced size, and further saves materials being fabricated, makes wire structures more reasonable.

Electromagnetic fan clutch of the present invention, described third through-hole has the first bucking ladder, and described the second through hole has the second bucking ladder.

Aforementioned each technical characteristics has further improved the durability of fan clutch entirety and the adhesive strength of lead end.

The manufacture method of opposed type iron core of the present invention, is included in the iron core slot that directly stretches and mutually arrange dorsad on iron core body.

Aforementioned each technical characteristics makes the technological method of fan clutch simple, saves operation, saves materials, makes to create on a large scale possibility.

Electromagnetic fan clutch of the present invention, the both sides of described opposed type electromagnetic core device have respectively the first adhesive gap and the second adhesive gap.

In iron core apparatus both sides, adhesive gap is set respectively, has improved radiating efficiency, clutch size is further dwindled.

Electromagnetic fan clutch of the present invention, each terminal of described coil are drawn from the wire lead slot of main shaft.

Electromagnetic fan clutch of the present invention, described wire lead slot is multiple and symmetrical.

Electromagnetic fan clutch of the present invention, described main shaft has two stages.

Electromagnetic fan clutch of the present invention, the tubular part that described main shaft is hollow.

Electromagnetic fan clutch of the present invention, comprise that described drive plate left side tightly fits in the fan fixed disk bearing on described main shaft, drive fit fan fixed disk on the outer ring of described fan fixed disk bearing, install the second axle sleeve near described fan fixed disk bearing left side drive fit on described main shaft, described fan fixed disk left side is connected to big spring sheet and large adhesive dish, the iron core through hole of described electromagnetic core device tightly fits on described main shaft and is close to the left side of described the second axle sleeve, be equiped with fastening cover rigid bearing near described electromagnetic core device left side drive fit on described main shaft, its outer ring drive fit is installed fastening cover, on described fastening cover, be also equiped with successively submissile reed and little adhesive dish, described fastening cover rigid bearing is held by the fastener hole of described fastening cover, and with the inwall drive fit of described fastener hole, the screw thread of fixing bolt and described main shaft screws mutually.

Electromagnetic fan clutch of the present invention, described fan fixed disk has first annular sidewall of upper shield on described electromagnetic core device, be inlaid with annular soft iron in described the first annular side wall ends, on described fastening cover, be connected to magnet fixed disc cover, its inner rim is connected to ring magnet fixed tray.

Electromagnetic fan clutch of the present invention, described fan fixed disk has circular groove to hold magnet fixed disc, and described fastening cover has first annular sidewall of upper shield on described electromagnetic core device, is inlaid with annular soft iron in described the first annular side wall ends.

Aforementioned each technical characteristics dwindles electromagnetic fan clutch overall dimensions, and overall manufacture cost reduces, and saves materials, and structure is more reasonable, and obviously increase working life.

Below in conjunction with accompanying drawing, embodiments of the invention are described further.

Brief description of the drawings

Fig. 1 is the schematic diagram of background technique of the present invention;

Fig. 2 is electromagnetic core device the first embodiment's of the present invention schematic diagram;

Fig. 3 is the schematic diagram that electromagnetic core device the first embodiment of the present invention is placed in a kind of three-speed electromagnetic clutch;

Fig. 4 is the schematic diagram of the other direction of the iron core body in Fig. 2 of the present invention;

Fig. 5 A be iron core body in Fig. 2 along A-A to sectional view;

Fig. 5 B be iron core body in Fig. 2 along B-B to sectional view;

Fig. 6 is the sectional view of Fig. 3;

Fig. 7 is the schematic diagram of the other direction of drive plate and main shaft in Fig. 2;

Fig. 8 is electromagnetic core device the second embodiment's of the present invention schematic diagram;

Fig. 9 is the opposite side view of the iron core in Fig. 8;

Figure 10 is that the C-C of electromagnetic core device the second embodiment of the present invention in Fig. 8 is to sectional view;

Figure 11 is the second embodiment's of electromagnetic fan clutch of the present invention sectional view.

Embodiment

The first embodiment of electromagnetic core device of the present invention.

Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5 A, Fig. 5 B, Fig. 6, it shows the first embodiment of electromagnetic core device of the present invention.

With reference to figure 2, Fig. 4, Fig. 5 A, Fig. 5 B, one end of iron core body 11 of the present invention offers the first circular groove 12, the other end of iron core body 11 of the present invention has the second circular groove 13, and the center of circle of the first described circular groove 12 all also overlaps each other with the center of circle of the second described circular groove 13 in the axial direction of described iron core body 11.Described iron core body 11 center portions have an iron core through hole 4, form pivot pin cover 5 in the direction towards described the second circular groove 13 openings after extending one section.The madial wall 121 of described the first circular groove 12 and the outer side wall 122 of described the second circular groove 13 overlap into a shared sidewall.The bottom end 124 of the open end of described the first circular groove 12 and described the second circular groove 13 is positioned at same level.Correspondingly, the open end of the bottom end of described the first circular groove 12 and described the second circular groove 13 is positioned at same level.Described the first circular groove 12 is positioned at inside the outer wall inner side of its opening part and inwall correspondence, and to have cross section be that semicircular equidistant bonding force and engaging power first strengthen line 130, the section radius of semi-circular portion, or be called depth of section, being 0.1 millimeter to 5 millimeters is optimum value.Similarly, being positioned at inside the outer wall inner side of its opening part and inwall correspondence at described the second circular groove 13, to have cross section be that semicircular equidistant bonding force and engaging power second strengthen line 131, the section radius of its semi-circular portion, or be called depth of section, being 0.1 millimeter to 5 millimeters is optimum value.

With reference to figure 2, on the bottom end 124 of described the second circular groove 13, have the first groove 125 along radially outer direction, it has two openings.Described the first groove 125 radially relative position have the first half grooves 126 along the radially inward direction of described bottom end 124, unique opening of described the first half grooves 126 is towards iron core through hole 4.Radially outside one end farthest at described the first half grooves 126 has the first through hole 16 perpendicular to iron core body 11.Being 90 ° with described the first half grooves 126 along angles clockwise has and similar the second half grooves 127 of the first half grooves 126, for counterweight and dynamic balancing to iron core body 11, its unique opening is towards iron core through hole 4, separately has the second through hole 180 in radially outside one end farthest of described the second half grooves 127 perpendicular to iron core body 11.With reference to figure 5B, described the second through hole 180 is expanded into the part that sectional area is larger will extend into before described the second circular groove 13 inside, and therefore forms the second bucking ladder 133.With reference to figure 2, Fig. 5 B, also have fourth hole 181 along the second half grooves 127 to the direction of iron core through hole 4 at described the second through hole 180.With reference to figure 2, Fig. 5 B, be 90 ° with described the first groove 125 along clockwise angle, have the 3 half groove 128 along the radially outward of described bottom end 124, its opening is towards described the first circular groove 12, vertically has third through-hole 129 at the 3 half described groove 128 along radial direction inner terminal.Described third through-hole 129 is expanded into the part that sectional area is larger will extend into before described the second circular groove 13 inside, and therefore forms the first bucking ladder 132.

With reference to figure 5A, Fig. 5 B, Fig. 2, at the described large coil 8 of the interior placement of the first circular groove 12, on it, cover large annular friction sheet 138, described large annular friction sheet 138 outer rims 140 and inner edge 141 engage with the first described enhancing line 130 and are further bonding.A lighting outlet of described large coil 8 passes the fixing also bonding of the 3 half described groove 128 use rivets in described third through-hole 129 places and is positioned at the 3 half groove 128; Another lighting outlet of described large coil 8 is introduced in the through hole 4 of iron core body 11 through the first described groove 125.The described interior placement small coil 7 of the second circular groove 13, covers little annular friction sheet 139 on it, the outer rim 145 of described little annular friction sheet 139 and inner edge 146 engage with the second described enhancing line 131 and be further bonding.A lighting outlet of described small coil 7 extends through described fourth hole 181 and along the radially outward direction of described the second half grooves 127 from a side of described the second circular groove 13, and with rivet, fixing and bonding is in described the second through hole 180 places and be positioned at the second half grooves 127; Another lighting outlet of described small coil 7 is introduced in the through hole 4 of iron core body 11 through described the first through hole 16 and along the first half grooves 126.Described each riveted joint also can adopt and be spirally connected or the Placement such as welding is replaced, as long as ensure that described bonding is placed on iron core body 11 reliably.

See on the whole, in the electromagnetic core device of first embodiment of the invention, described the first circular groove 12 and the axially mutually dorsad setting of described the second circular groove 13 along described iron core body 11, opening direction is each other contrary, that is, be each other opposed type and arrange and distribute.Described large coil 8 and small coil 7, for the opening direction of described circular groove 12,13, also arrange each other dorsad, that is, be each other opposed type and arrange and distribute.Described large friction plate 138 and described friction sheet 139, for the opening direction of described circular groove 12,13, also arrange each other dorsad, that is, be each other opposed type and arrange and distribute.

Electromagnetic core device the first embodiment's of the present invention manufacture method.

Wherein the first manufacture method of first embodiment of the invention is:

Forge or essence casting or directly stretch or directly spinning or directly casting iron core body 11 is provided, form the iron core slot mutually arranging dorsad by Vehicle Processing, mutually form dorsad the first circular groove 12 and the second circular groove 13.On described bottom end 124, form described the first groove 125, the first half groove 126, the second half grooves 127, the 3 half grooves 128 by Vehicle Processing or milling again.By drilling tool form described first through hole 16, the second through holes 180, third through-hole 129, fourth hole 181 thereafter.Adopt the drilling tool of other different-diameter to form the first bucking ladder 132 and the second bucking ladder 133 thereafter.

Place described large coil 8 and enter described the first circular groove 12 thereafter, the first Outlet 111 of described large coil 8 is inserted in described the 3 half groove along the opening of described the 3 half groove 128, by first bucking ladder 132 one sides enter first rivet 135 thereafter, then described the first Outlet 111 remainders are wrapped on described rivet and with riveting machine and fix the first rivet 135 to the interior formation bonding of described the 3 half groove 128, dismiss thereafter redundance.The second Outlet 112 of described large coil 8 passes along described the first groove 125, extends into iron core through hole 4.On this backward large coil 8 that is positioned at described the first circular groove 12, pour into binder, for example epoxy resin, is then embedded in the inner edge 141 of the outer rim of large annular friction sheet 140 and large annular friction sheet respectively on the first described enhancing line 130 by drive fit.Thereby described large friction plate is covered described large coil 8 by further bonding and engaging thus.

Place described small coil 7 and enter described the second circular groove 13 thereafter, the second Outlet 19 of described small coil 7 is entered into a side of described bottom 124 through described fourth hole 181, then insert the second rivet 136 along the second bucking ladder 133 1 sides by described the second through hole 180, the remainder of second Outlet 19 of described small coil 7 along described the second half groove 127 radially outer directions extended and be wrapped in described second rivet 136 on thereafter, fix the second rivet 136 to the second half interior formation bonding of groove 127 on iron core body 11 with riveting machine subsequently, dismiss redundance thereafter.The first Outlet 110 of described small coil 7 extends into a side of described bottom 124 through described the first through hole 16, then place along described the first half grooves 126, is finally extended in described iron core through hole 4 by the opening of described the first half grooves 126.On this backward small coil 7 that is positioned at described the second circular groove 13, pour into binder, for example epoxy resin, is then embedded in the inner edge 146 of the outer rim of little annular friction sheet 139 145 and little annular friction sheet respectively on the second described enhancing line 131 by drive fit.Thereby described friction sheet 139 is covered described small coil 7 by further bonding and engaging thus.

Thus, can form the electromagnetic core device of first embodiment of the invention by aforesaid first method of the present invention.On the whole, it also has and is positioned at two annular friction sheets 138,139 that iron core body openings and subtend arrange and two lighting outlets 110,112 towards two coils of electromagnetic core through hole 4, is respectively used to connect the feeder ear of respective electrical magnetic coil.

The wherein another kind of manufacture method of the electromagnetic core of first embodiment of the invention is: in the case of other steps of aforementioned first method are constant, the step that forms described iron core slot is the direct stretched iron core slot mutually arranging dorsad.

Wherein another manufacture method of the electromagnetic core of first embodiment of the invention is: in the case of other steps of aforementioned first method are constant, the step that forms described iron core slot is to be spun to the iron core slot mutually arranging dorsad.

The second embodiment of electromagnetic core device of the present invention.

Referring to Fig. 8, Fig. 9, Figure 10, it shows the second embodiment of electromagnetic core device of the present invention.

One end of the second iron core body 21 of the present invention has offered two the first square grooves 22, and the axial the other end of described iron core body 21 has two other the second square groove 23.Described iron core body 21 center portions have an iron core through hole 24, form pivot pin cover 25 in the direction towards described the second square groove 23 openings after extending one section.Described iron core body upwards has the first fixing outer rim 290 for 21 weeks, and the first described fixing outer rim 290 madial wall openings have leg-of-mutton equidistant engaging power the 3rd and strengthen line 234, and it is optimum value that the depth of section of its gable is 0.1 millimeter to 5 millimeters.Described iron core body 21 upwards has the second fixing outer rim 291 week of opposite side, the second described fixing outer rim 291 madial wall openings have leg-of-mutton equidistant engaging power the 4th and strengthen line 235, it is optimum value that the depth of section of its gable is 0.1 millimeter to 5 millimeters, also has the 4th same enhancing line 235 on described pivot pin cover 25.Described two the first square grooves 22 and two other described second square groove 23 are distributed on described iron core body 21, and center line is each other mutually vertical on iron core body 21 plan-positions.It is that leg-of-mutton equidistant bonding force and engaging power first strengthen line 230 that described the first square groove 22 has cross section at the madial wall that is positioned at its opening part, and it is optimum value that gable depth of section is 0.1 millimeter to 5 millimeters.Similarly, be positioned on the madial wall of its opening part also correspondence to have cross section be that leg-of-mutton equidistant bonding force and engaging power second strengthen line 231 at described the second square groove 23, and it is optimum value that the depth of section of its gable is 0.1 millimeter to 5 millimeters.

Have two the first grooves 225 at described two the first square grooves 22 along radially inner direction, it is each has respectively one to the opening of iron core through hole 24 with towards the opening of described the first square groove 22.Also have two other the first half groove 226 with two described the first groove 225 left side parallel positions, at it, the endpoint location near described iron core through hole 24 has two the first through holes 26 respectively, two described the first through holes 26 are expanded into the part that sectional area is larger will extend into before described iron core body 21 opposite sides, and therefore form two the first bucking ladders 232.Be 90 ° along clockwise angle respectively with described two the first grooves 225 and have two anti-" 7 " fonts, the second half grooves 227, the opening of two grooves is all towards described iron core through hole 24, has two the second through holes 280 at described two the second half groove 227 cecums perpendicular to iron core body 21.Described two the second through holes 280 are expanded into the part that sectional area is larger will extend into before described iron core body 21 opposite sides, and therefore form two the second bucking ladders 233.Corner at each described anti-" 7 " font the second half grooves 227 also has third through-hole 229.

Place respectively two the first coils 28 two described the first square grooves 22 are interior, on it, cover large annular friction sheet 238, described large annular friction sheet 238 increases line 234 by the first fixing outer rim 290 madial wall card merga pass the 3rd of iron core body 21 and increases engaging power, and can obtain further bonding by being attached to the described first binder such as epoxy resin strengthening on line 230.A lighting outlet 211 of two described the first coils 28 respectively through the first half grooves 226 described in two then and bonding fixing with rivet in described two the first through hole 26 places and be positioned at described the first half grooves 226; Two other lighting outlet 212 of two described the first coils 28 is introduced in the through hole 24 of iron core body 21 through two described the first grooves 225 respectively.Two square grooves 23 of described iron core body 21 opposite sides are interior places respectively two the second coils 27, on it, cover little annular friction sheet 239, the inner edge 246 of described little annular friction sheet 239 and its outer rim 245 strengthen line 235 by the described the 4th and block merga pass and be attached to the described second binder such as epoxy resin strengthening on line 231 and obtain further bonding.Two paired lighting outlets of two described the second coils 27 pass from two described through holes 229 respectively, wherein cecum along described the second half grooves 227 to described the second through hole 280 places with rivet fixing and bonding in described the second through hole 280 places and be positioned at the second half grooves 227; Another root lighting outlet of two described the second coils 27 is introduced in the through hole 24 of iron core body 21 along the opening direction of described the first half grooves 227 respectively.Aforesaid riveted joint also can adopt and be spirally connected or the Placement such as welding is replaced, as long as ensure that bonding is placed on iron core body 21 reliably.

See on the whole, in the electromagnetic core device of second embodiment of the invention, described two the first square grooves 22 and described two other second square groove 23 axially arrange mutually dorsad along described iron core body 21, and opening direction is each other contrary,, being each other opposed type arranges and distributes.Two described the first coils 28 and two other second coil 27, for the opening direction of described square groove, also arrange each other dorsad, that is, be each other opposed type and arrange and distribute.239 opening directions for described square groove 22,23 of described large friction plate 238 and described friction, also arrange each other dorsad, that is, be each other opposed type and arrange and distribute.Large friction plate 238 and friction sheet are also positioned at the opening of iron core body and have four lighting outlets 210,212 towards four coils of electromagnetic core through hole 24, are respectively used to connect the feeder ear of corresponding aforementioned each coil.

The second embodiment's of electromagnetic core device of the present invention manufacture method.

Wherein the first manufacture method of second embodiment of the invention is:

Forge or essence casting or directly stretch or directly spinning or directly casting iron core body 21 is provided, form the iron core slot mutually arranging dorsad by Vehicle Processing simultaneously, mutually form dorsad two the first square grooves 22 and two the second square grooves 23.On described iron core body 21 one of them end face, form described two the first grooves 225, two the first half groove 226, two the second half grooves 227 by Vehicle Processing or milling again.By drilling tool form described two first through holes 26, two second through hole 280, two third through-holes 229 thereafter.Adopt the drilling tool of different-diameter to form two the first bucking ladders 232 and two the second bucking ladders 233 thereafter.

Place described two the first coils 28 and enter respectively described the first square groove 22 thereafter, the first Outlet 211 of described two the first coils 28 is inserted in described the first half grooves 226 along the opening of described the first half grooves 226, by first bucking ladder 232 one sides enter first rivet 237 thereafter, then described the first Outlet 211 remainders are wrapped on described rivet and fix the first rivet 237 with riveting machine and form bonding to the first through hole 26 places in described the first half grooves 226, dismiss thereafter redundance.The second Outlet 212 of described the first coil 28 passes along described the first groove 225 respectively, extends into iron core through hole 24.On these backward two first coils 28 that are positioned at described the first square groove 22, pour into binder, for example epoxy resin, then the outer rim of large annular friction sheet 238 240 is embedded on the 3rd described enhancing line 234 by drive fit, and obtains bonding by being attached to the described first binder strengthening on line 230.Thereby described large friction plate 238 is covered described two the first coils 28 by further bonding and engaging thus.

Place described two the second coils 27 and enter described the second square groove 23 thereafter, respectively by two pairs of Outlets 29 of two described small coils 27, 210 enter into a side of described the first square groove 22 through described third through-hole 229, then insert the second rivet 236 along the second bucking ladder 233 1 sides by described the second through hole 280, second Outlet 29 remainders of described second coil 27 towards described the second half groove 227 cecums extended and be wrapped in described second rivet 236 on thereafter, fix the second rivet 236 to the second half interior formation bonding of groove 227 on iron core body 21 with riveting machine subsequently, dismiss redundance thereafter.The first Outlet 210 of described the second coil 27 extends in described iron core through hole 24 along described the second half groove 227 opening directions.On this backward second coil 27 that is positioned at described the second square groove 23, pour into binder, for example epoxy resin, is then embedded in the inner edge 246 of the outer rim of little annular friction sheet 239 245 and little annular friction sheet respectively on the 4th described enhancing line 235 and is obtained bonding by being attached to the described second binder strengthening on line 231 by drive fit.Thereby described friction sheet 239 is covered described the second coil 7 by further bonding and engaging thus.

Thus, can form the electromagnetic core device of second embodiment of the invention by aforesaid first method of the present invention.On the whole, it has subtend setting and is fastened on two annular friction sheets 238,239 in iron core body fixed edge and towards totally four lighting outlets 210,212 of two pairs of coils of electromagnetic core through hole 24, is respectively used to connect the feeder ear of respective electrical magnetic coil.

The wherein another kind of manufacture method of the electromagnetic core of second embodiment of the invention is: in the case of other steps of the first manufacture method of aforementioned the second embodiment are constant, the step that forms described iron core slot is the direct stretched iron core slot mutually arranging dorsad.

Wherein another manufacture method of the electromagnetic core of second embodiment of the invention is: in the case of other steps of the first manufacture method of aforementioned the second embodiment are constant, the step that forms described iron core slot is to be spun to the iron core slot mutually arranging dorsad.

Referring to Fig. 3 and Fig. 2, Fig. 6.The situation that forms electromagnetic fan clutch of the present invention by the first embodiment of electromagnetic core device of the present invention has been shown in Fig. 3.

Electromagnetic fan clutch the first embodiment of the present invention.

Electromagnetic fan clutch of the present invention is made up of live axle 81, described live axle 81 comprises and can and drive disk body 80 for the main shaft of hollow 816, on described main shaft 816, have metallic channel 83, described metallic channel 83 is suitable for holding many enameled cables, described metallic channel 83 extends to the position near described driving disk body 80, covers dirt-proof boot 82 and brushgear on it..Described dirt-proof boot tightly fits in drive plate 80 1 sides of main shaft 816 by dirt-proof boot rigid bearing 84, dirt-proof boot 82 described in its outer ring drive fit.The first axle sleeve 827 of being made up of material steel 45 is installed in described dirt-proof boot rigid bearing 84 left sides, and its left side tightens and is combined with fan fixed disk bearing 86 along described main shaft 816, drive fit fan fixed disk 85 on the outer ring of described fan fixed disk bearing 86.Described dirt-proof boot 82 left sides are fastened on the right-hand end sealing of described fan fixed disk 85.Install near described fan fixed disk bearing 86 left sides drive fit on main shaft 816 the second axle sleeve 820 of being made by material steel 45, for the formation in the first adhesive gap 841.With reference to figure 6, Fig. 7, main shaft 816 radially dwindles and forms two stages 850 in the second described axle sleeve leftward position, further to save materials and the weight of electromagnetic fan clutch of the present invention.With reference to figure 6, be bolted with big spring sheet 87 and large adhesive dish 88 in described fan fixed disk 85 left sides.The iron core through hole 4 of the electromagnetic core device 11 of first embodiment of the invention tightly fits on described main shaft 816 and is close to the left side drive fit socket of described the second axle sleeve 820, then forms the first adhesive gap 841 thus and between described large adhesive dish 88.The electromagnetic core device 11 of first embodiment of the invention can also be further further fixed on described main shaft 816 by the groove of its pivot pin cover 5 by pin or flat key or spline.Another effect of described pivot pin cover 5 is to form the second adhesive gap 842, and described pivot pin cover 5 the 3rd axle sleeve (not shown)s that also available material steel 45 is made substitute and are used to form described the second adhesive gap 842.Described fan fixed disk 85 has first annular sidewall 821 of upper shield on the electromagnetic core device 11 of described first embodiment of the invention, be inlaid with annular soft iron 822 in described the first annular sidewall 821 tip portion, for producing induction field and driven by magnetic eddy current in the time that magnetic eddy current producing.Electromagnetic core device 11 left sides drive fit on main shaft 816 near described first embodiment of the invention is equiped with fastening cover rigid bearing 811, and its outer ring drive fit is installed fastening cover 812.On described fastening cover 812, be also bolted with magnet fixed disc cover 814, its inner rim is bolted with ring magnet fixed tray 813, on it, be inlaid with multiple disc permanent magnets for generation of magnetic eddy current, described magnet fixed disc 813 has the second adhesive gap 842 with described electromagnetic core device left side, and particularly described little adhesive dish 867 has the second adhesive gap 842 with described electromagnetic core device left side.On described fastening cover 812, be also equiped with successively submissile reed 89 and little adhesive dish 867.Fastening cover rigid bearing 811 is held by the fastener hole 828 of described fastening cover 812, and with the inwall drive fit of fastener hole 828, then be mutually tightened by fixing bolt 815 and the screw thread of described main shaft 816, on the left side wall of the drive plate 80 of aforementioned each parts on described main shaft 816, realize entirety and interfix thereby compress subsequently.Main shaft 816 of the present invention can be hollow tubular part, and can be integrally formed with described drive plate 80, is used for further improving the intensity of magnetic clutch of the present invention, and further reduces its weight, saves materials simultaneously.

The first embodiment's of aforementioned electromagnetic fan clutch of the present invention working procedure is as follows:

In the time that described large coil lead 112 and small coil lead-in wire 110 all must not electricity, described drive plate 80 drives described main shaft 816 to rotate, and freely rotates with respect to described main shaft 816 because the free rotary effect of described dirt-proof boot rigid bearing 84 and fan fixed disk bearing 86 and fastening cover rigid bearing 811 makes described fan fixed disk 85.

When large coil lead 112 must not electricity and small coil lead-in wire 110 when electric, small coil produces electromagnetic force and finally relatively fixes adhesive by being connected to by submissile reed 89 after little adhesive dish 867 on described fastening cover 812 pulls to friction sheet 139 directions of electromagnetic core 11 semi-linkage, thereby make the angular velocity of described magnet fixed disc rise to consistent with the angular velocity of main shaft 816 from 0, and produce corresponding magnetic eddy current and drive described soft iron 822 with the angular velocity rotation lower than main shaft 816, thereby drive fan fixed disk 85 to rotate with second speed.

When small coil lead-in wire 110 and large coil lead 112 in succession when electric, small coil produces electromagnetic force and finally relatively fixes adhesive by being connected to by submissile reed 89 after little adhesive dish 867 on described fastening cover 812 pulls to friction sheet 139 directions of electromagnetic core 11 semi-linkage, thereby make the angular velocity of described magnet fixed disc rise to consistent with the angular velocity of live axle 816 from 0, and produce corresponding magnetic eddy current and drive described soft iron 822 with the angular velocity rotation lower than main shaft 816, the electromagnetic force that large coil produces subsequently will be connected to large adhesive dish 88 in described fan fixed disk 85 and pull to the direction of the large friction plate 138 of electromagnetic core by described big spring sheet 87, after semi-linkage, finally relatively fix adhesive, thereby drive fan fixed disk to rotate at full speed with the on all four angular velocity of main shaft 816, now the induction field of soft iron 822 disappears.

Electromagnetic fan clutch the second embodiment of the present invention.

Referring to Figure 11, wherein show electromagnetic fan clutch the second embodiment of the present invention.

Electromagnetic fan clutch the second embodiment of the present invention is made up of live axle 61, described live axle 61 comprises and can and drive disk body 60 for the main shaft of hollow 616, on described main shaft 616, have metallic channel 63, described metallic channel 63 is suitable for holding many enameled cables, described metallic channel 63 extends to the position near described driving disk body 60, covers dirt-proof boot 62 and brushgear on it..Described dirt-proof boot tightly fits in drive plate 60 1 sides of main shaft 616 by dirt-proof boot rigid bearing 64, dirt-proof boot 62 described in its outer ring drive fit.The first axle sleeve 627 of being made up of material steel 45 is installed in described dirt-proof boot rigid bearing 64 left sides, and its left side tightens and is combined with fan fixed disk bearing 66 along described main shaft 616, drive fit fan fixed disk 65 on the outer ring of described fan fixed disk bearing 66.Described dirt-proof boot 62 left sides are fastened on the right-hand end sealing of described fan fixed disk 65.Install near described fan fixed disk bearing 66 left sides drive fit on main shaft 616 the second axle sleeve 620 of being made by material steel 45, for the formation in the first adhesive gap 641.Main shaft 616 radially dwindles and forms two stages 650 in the second described axle sleeve leftward position, further to save materials and the weight of electromagnetic fan clutch of the present invention.Be bolted with big spring sheet 67 and large adhesive dish 68 in described fan fixed disk 65 left sides.The iron core through hole 24 of the electromagnetic core device 21 of second embodiment of the invention tightly fits on described main shaft 616 and is close to the left side drive fit socket of described the second axle sleeve 620, then forms the first adhesive gap 641 thus and between described large adhesive dish 68.The second embodiment 21 of electromagnetic core device of the present invention can also be further further fixed on described main shaft 616 by the groove of its pivot pin cover 25 by pin or flat key or spline.Another effect of described pivot pin cover 25 is to form the second adhesive gap 642, and described pivot pin cover 25 the 3rd axle sleeve (not shown)s that also available material steel 45 is made substitute and are used to form described the second adhesive gap 642.Described fan fixed disk 65 left sides have circular groove to hold ring magnet fixed tray 613, on it, be inlaid with multiple disc permanent magnets for generation of magnetic eddy current, and forming disc-shaped structure with fan fixed disk 65 entirety, right side annular portion forms magnet fixed disc cover 614.Electromagnetic core device 21 left sides drive fit on main shaft 616 near described second embodiment of the invention is equiped with fastening cover rigid bearing 611, and its outer ring drive fit is installed fastening cover 612.Described fastening cover 612 has first annular sidewall 621 of upper shield on the electromagnetic core device 21 of described second embodiment of the invention, be inlaid with annular soft iron 622 in described the first annular sidewall 621 tip portion, for producing induction field and drive described magnet fixed disc 613 in the time that magnetic eddy current producing.Described fastening cover 612 inner rings are equiped with submissile reed 69 and little adhesive dish 667 from left to right successively, and little adhesive dish 667 has the second adhesive gap 642 with described electromagnetic core device 21 left sides.Described fastening cover rigid bearing 611 is held by the fastener hole 628 of described fastening cover 612, and with the inwall drive fit of fastener hole 628, then be mutually tightened by fixing bolt 615 and fastening pad 666 and the screw thread of described main shaft 616, on the left side wall of the drive plate 60 of aforementioned each parts on described main shaft 616, realize entirety and interfix thereby compress subsequently.Main shaft 616 of the present invention can be hollow tubular part, and can be integrally formed with described drive plate 60, is used for further improving magnetic clutch the second embodiment's of the present invention intensity, and further reduces its weight, saves materials simultaneously.

The second embodiment's of electromagnetic fan clutch of the present invention working procedure is as follows:

In the time that the first coil lead 212 and the second coil lead 210 all must not electricity, described drive plate 60 drives described main shaft 616 to rotate, and freely rotates with respect to described main shaft 616 because the free rotary effect of described dirt-proof boot rigid bearing 64 and fan fixed disk bearing 66 and fastening cover rigid bearing 611 makes described fan fixed disk 65.

When the first coil lead 212 must not electricity and the second coil lead 210 when electric, small coil produces electromagnetic force and finally relatively fixes adhesive by being connected to by submissile reed 69 after little adhesive dish 667 on described fastening cover 612 pulls to friction sheet 239 directions of electromagnetic core 21 semi-linkage, thereby make the angular velocity of described magnet fixed disc rise to consistent with the angular velocity of main shaft 616 from 0, and in soft iron 622, produce corresponding magnetic eddy current to drive described magnet fixed disc 613 with the angular velocity rotation lower than main shaft 616, thereby drive fan fixed disk 65 to rotate with second speed.

When the second coil lead 210 and the first coil lead 212 in succession when electric, small coil produces electromagnetic force and finally relatively fixes adhesive by being connected to by submissile reed 69 after little adhesive dish 667 on described fastening cover 612 pulls to friction sheet 239 directions of electromagnetic core 21 semi-linkage, thereby make the angular velocity of described magnet fixed disc rise to consistent with the angular velocity of live axle 616 from 0, and in described soft iron 622, produce corresponding magnetic eddy current and drive described magnet fixed disc 613 with the angular velocity rotation lower than main shaft 616, the electromagnetic force that the first coil produces subsequently will be connected to large adhesive dish 68 in described fan fixed disk 65 and pull to the direction of the large friction plate 238 of electromagnetic core by described big spring sheet 67, after semi-linkage, finally relatively fix adhesive, thereby drive fan fixed disk to rotate at full speed with the on all four angular velocity of main shaft 616, now the induction field of soft iron 622 disappears.

Other embodiments of electromagnetic fan clutch of the present invention.

Very significantly, aforesaid other each embodiments of electromagnetic core device of the present invention also can directly substitute in the aforesaid specific embodiment that the first embodiment of electromagnetic core of the present invention or the second embodiment be installed in electromagnetic fan clutch of the present invention and be suitable with miscellaneous part and device, thereby form other embodiments of multiple electromagnetic fan clutch of the present invention.

Those skilled in the art are to be understood that, by reading the structure of aforesaid electromagnetic fan clutch of the present invention and the working principle of this electromagnetic fan clutch and design thereof, those skilled in the art are applied in each embodiment of electromagnetic core device of the present invention existing various single speed, double speed, three speed and more in the electromagnetic fan clutch of multistage speed and to the parts that match with the each embodiment of electromagnetic core of the present invention and device, are out of shape and the various technological schemes that realize all should belong to the present invention and attempt the technological scheme disclosing.

Purposes and the effect of electromagnetic core device of the present invention and manufacture method thereof and corresponding magnetic clutch.

Each embodiment of electromagnetic core device of the present invention can make materials being fabricated save more than 20%, and particularly coil materials are saved more than 30%.Its compact structure is applicable to mass production with the each manufacture method that succinctly also directly causes various embodiments of the present invention and has saved the time simultaneously and reduced concerned process steps, has particularly avoided manual operations to become necessity of manufacture method.

The materials being fabricated of the electromagnetic fan clutch that comprises electromagnetic core device of the present invention is saved more than 30%, particularly the volume of electromagnetic fan clutch is at least reduced to 2/3rds of prior art, especially can greatly shorten along the size of electromagnetic fan clutch major axes orientation, thereby electromagnetic fan clutch of the present invention is more suitable for being contained in various engine compartments and adaptive better with motor car engine.In addition, with the size of the each parts of the corresponding electromagnetic fan clutch of electromagnetic core of the present invention and materials are all corresponding thus reduces at least 30%.

Above-described each embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skill in the art make technological scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention.

industrial applicibility

Opposed type iron core apparatus of the present invention and manufacture method thereof, and comprise the electromagnetic fan clutch of this opposed type iron core, go for various brushless type and have brush electromagnetic fan clutch to manufacture, and the manufacturing of automobile.

Claims (61)

1. electromagnetic fan clutch, be included in iron core body (11, 21) one end offers the first circular groove (12), described iron core body (11, 21) the other end offers the second circular groove (13), the madial wall (121) of described the first circular groove (12) and the outer side wall (122) of described the second circular groove (13) overlap into a shared sidewall, the bottom end of the open end of described the first circular groove (12) and described the second circular groove (13) is positioned at same level, the open end of the bottom end of described the first circular groove (12) and described the second circular groove (13) is positioned at same level, described the first circular groove (12) and described the second circular groove (13) are along described iron core body (11, 21) axially mutually arrange dorsad, at described the first circular groove and described the second circular groove (12, 13, 22, 23) coil (7 mutually arranging dorsad holding in, 8, 27, 28).

2. electromagnetic fan clutch according to claim 1, also comprises, at described the first circular groove and the upper friction plate (138,139,238,239) mutually arranging dorsad of described the second circular groove (12,13,22,23).

3. electromagnetic fan clutch according to claim 2, it is characterized in that: described coil (7,8,27,28) each only has terminal (112,110,212,210) from the iron core through hole (4,24) of described iron core body (11,21), draw.

4. electromagnetic fan clutch according to claim 3, is characterized in that: the bonding end (111,19,211,29) of described coil (7,8,27,28) directly connects with described iron core body (11,21).

5. electromagnetic fan clutch according to claim 4, is characterized in that: described terminal (112,110,212,210) and bonding end (111,19,211,29) be all positioned at the same side of described iron core body (11,21).

6. according to the electromagnetic fan clutch described in any one in claim 2 to 5, it is characterized in that: described friction plate comprises the large friction plate (138 of annular, 238) and annular friction sheet (139,239), the large friction plate (138 of described annular, 238) be connected in described the first circular groove (12) opening, described annular friction sheet (139,239) is connected in described the second circular groove (13) opening.

7. according to the electromagnetic fan clutch described in claim 1 to 5 any one, it is characterized in that: the first described circular groove and described the second circular groove (12,13,22,23,290,291) each opening end madial wall have strengthen line (130,230,131,231,234,235).

8. electromagnetic fan clutch according to claim 7, is characterized in that: the depth of section of described enhancing line (130,230,131,231,234,235) is 0.1 millimeter to 5 millimeters.

9. according to the electromagnetic fan clutch described in any one in claim 2 to 5, it is characterized in that: on the bottom end (124) of described the second circular groove (13), be provided with the first groove (125), the first half grooves (126), the second half groove (127) the 3 half grooves (128), the first through hole (16), the second through hole (180), third through-hole (129), fourth hole (181).

10. electromagnetic fan clutch according to claim 9, it is characterized in that: described third through-hole (129) has the first bucking ladder (132), and described the second through hole (180) has the second bucking ladder (133).

11. according to the electromagnetic fan clutch described in claim 1 or 2 or 3 or 4 or 5 or 8 or 10, it is characterized in that: the both sides of described iron core body (11) have respectively the first adhesive gap (841,641) with the second adhesive gap (842,642).

12. electromagnetic fan clutch according to claim 9, is characterized in that: the both sides of described iron core body (11) have respectively the first adhesive gap (841,641) and the second adhesive gap (842,642).

13. electromagnetic fan clutch according to claim 6, is characterized in that, the both sides of described iron core body (11) have respectively the first adhesive gap (841,641) and the second adhesive gap (842,642).

14. electromagnetic fan clutch according to claim 7, is characterized in that, the both sides of described iron core body (11) have respectively the first adhesive gap (841,641) and the second adhesive gap (842,642).

15. electromagnetic fan clutch according to claim 11, is characterized in that, comprise main shaft (816,616), described coil (7,8,27,28) each terminal are drawn from the wire lead slot (83,63) of main shaft (816,616).

16. electromagnetic fan clutch according to claim 12, is characterized in that, comprise main shaft (816,616), described coil (7,8,27,28) each terminal are drawn from the wire lead slot (83,63) of main shaft (816,616).

17. electromagnetic fan clutch according to claim 15, is characterized in that, described wire lead slot (83,63) is multiple and symmetrical.

18. electromagnetic fan clutch according to claim 17, is characterized in that, described main shaft (816,616) has two stages (850,650).

19. electromagnetic fan clutch according to claim 18, is characterized in that, the tubular part that described main shaft (816,616) is hollow.

20. electromagnetic fan clutch according to claim 19, it is characterized in that, comprise drive plate (80, 60), at described drive plate (80, 60) left side tightly fits in described main shaft (816, 616) the fan fixed disk bearing (86 on, 66), described fan fixed disk bearing (86, 66) drive fit fan fixed disk (85 on outer ring, 65), near described fan fixed disk bearing (86, 66) left side is at described main shaft (816, 616) upper drive fit is installed the second axle sleeve (820, 820), described fan fixed disk (85, 65) left side is connected to big spring sheet (87, 67) and large adhesive dish (88, 98), the iron core through hole (4) of described iron core body (11) tightly fits in described main shaft (816, 616) go up and be close to described the second axle sleeve (820, 620) left side, be equiped with fastening cover rigid bearing (811 near described iron core body (11) left side in the upper drive fit of described main shaft (816), 611), its outer ring drive fit is installed fastening cover (812, 612), described fastening cover (812, 612) on, be also equiped with successively submissile reed (89, 69) and little adhesive dish (867, 667), described fastening cover rigid bearing (811, 611) by described fastening cover (812, 612) fastener hole (828, 628) hold, and with described fastener hole (828, 628) inwall drive fit, fixing bolt (815, 615) with described main shaft (816, 616) screw thread screws mutually.

21. electromagnetic fan clutch according to claim 20, it is characterized in that, described fan fixed disk (85) has first annular sidewall (821) of upper shield on described iron core body (11), be inlaid with annular soft iron (822) in described the first annular sidewall (821) end, on described fastening cover (812), be connected to magnet fixed disc cover (814), its inner rim is connected to ring magnet fixed tray (813).

22. electromagnetic fan clutch according to claim 20, it is characterized in that, described fan fixed disk (65) has circular groove to hold magnet fixed disc (613), described fastening cover (612) has first annular sidewall (621) of upper shield on described iron core body (21), is inlaid with annular soft iron (622) in described the first annular sidewall (621) end.

23. electromagnetic fan clutch according to claim 13, is characterized in that, comprise main shaft (816,616), described coil (7,8,27,28) each terminal are drawn from the wire lead slot (83,63) of main shaft (816,616).

24. electromagnetic fan clutch according to claim 23, is characterized in that, described wire lead slot (83,63) is multiple and symmetrical.

25. electromagnetic fan clutch according to claim 24, is characterized in that, described main shaft (816,616) has two stages (850,650).

26. electromagnetic fan clutch according to claim 25, is characterized in that, the tubular part that described main shaft (816,616) is hollow.

27. electromagnetic fan clutch according to claim 26, it is characterized in that, comprise drive plate (80, 60), at described drive plate (80, 60) left side tightly fits in described main shaft (816, 616) the fan fixed disk bearing (86 on, 66), described fan fixed disk bearing (86, 66) drive fit fan fixed disk (85 on outer ring, 65), near described fan fixed disk bearing (86, 66) left side is at described main shaft (816, 616) upper drive fit is installed the second axle sleeve (820, 820), described fan fixed disk (85, 65) left side is connected to big spring sheet (87, 67) and large adhesive dish (88, 98), the iron core through hole (4) of described iron core body (11) tightly fits in described main shaft (816, 616) go up and be close to described the second axle sleeve (820, 620) left side, be equiped with fastening cover rigid bearing (811 near described iron core body (11) left side in the upper drive fit of described main shaft (816), 611), its outer ring drive fit is installed fastening cover (812, 612), described fastening cover (812, 612) on, be also equiped with successively submissile reed (89, 69) and little adhesive dish (867, 667), described fastening cover rigid bearing (811, 611) by described fastening cover (812, 612) fastener hole (828, 628) hold, and with described fastener hole (828, 628) inwall drive fit, fixing bolt (815, 615) with described main shaft (816, 616) screw thread screws mutually.

28. electromagnetic fan clutch according to claim 27, it is characterized in that, described fan fixed disk (85) has first annular sidewall (821) of upper shield on described iron core body (11), be inlaid with annular soft iron (822) in described the first annular sidewall (821) end, on described fastening cover (812), be connected to magnet fixed disc cover (814), its inner rim is connected to ring magnet fixed tray (813).

29. electromagnetic fan clutch according to claim 27, it is characterized in that, described fan fixed disk (65) has circular groove to hold magnet fixed disc (613), described fastening cover (612) has first annular sidewall (621) of upper shield on described iron core body (21), is inlaid with annular soft iron (622) in described the first annular sidewall (621) end.

30. electromagnetic fan clutch according to claim 14, is characterized in that, comprise main shaft (816,616), described coil (7,8,27,28) each terminal are drawn from the wire lead slot (83,63) of main shaft (816,616).

31. electromagnetic fan clutch according to claim 30, is characterized in that, described wire lead slot (83,63) is multiple and symmetrical.

32. electromagnetic fan clutch according to claim 31, is characterized in that, described main shaft (816,616) has two stages (850,650).

33. electromagnetic fan clutch according to claim 32, is characterized in that, the tubular part that described main shaft (816,616) is hollow.

34. electromagnetic fan clutch according to claim 33, it is characterized in that, comprise drive plate (80, 60), at described drive plate (80, 60) left side tightly fits in described main shaft (816, 616) the fan fixed disk bearing (86 on, 66), described fan fixed disk bearing (86, 66) drive fit fan fixed disk (85 on outer ring, 65), near described fan fixed disk bearing (86, 66) left side is at described main shaft (816, 616) upper drive fit is installed the second axle sleeve (820, 820), described fan fixed disk (85, 65) left side is connected to big spring sheet (87, 67) and large adhesive dish (88, 98), the iron core through hole (4) of described iron core body (11) tightly fits in described main shaft (816, 616) go up and be close to described the second axle sleeve (820, 620) left side, be equiped with fastening cover rigid bearing (811 near described iron core body (11) left side in the upper drive fit of described main shaft (816), 611), its outer ring drive fit is installed fastening cover (812, 612), described fastening cover (812, 612) on, be also equiped with successively submissile reed (89, 69) and little adhesive dish (867, 667), described fastening cover rigid bearing (811, 611) by described fastening cover (812, 612) fastener hole (828, 628) hold, and with described fastener hole (828, 628) inwall drive fit, fixing bolt (815, 615) with described main shaft (816, 616) screw thread screws mutually.

35. electromagnetic fan clutch according to claim 34, it is characterized in that, described fan fixed disk (85) has first annular sidewall (821) of upper shield on described iron core body (11), be inlaid with annular soft iron (822) in described the first annular sidewall (821) end, on described fastening cover (812), be connected to magnet fixed disc cover (814), its inner rim is connected to ring magnet fixed tray (813).

36. electromagnetic fan clutch according to claim 34, it is characterized in that, described fan fixed disk (65) has circular groove to hold magnet fixed disc (613), described fastening cover (612) has first annular sidewall (621) of upper shield on described iron core body (21), is inlaid with annular soft iron (622) in described the first annular sidewall (621) end.

37. electromagnetic fan clutch, the one end that is included in iron core body offers the first square groove, the other end of described iron core body offers the second square groove, the madial wall of described the first square groove and the outer side wall of described the second square groove overlap into a shared sidewall, the bottom end of the open end of described the first square groove and described the second square groove is positioned at same level, the open end of the bottom end of described the first square groove and described the second square groove is positioned at same level, described the first square groove and described the second square groove axially arrange mutually dorsad along described iron core body, the coil mutually arranging dorsad holding in described the first square groove and described the second square groove.

38. according to the electromagnetic fan clutch described in claim 37, also comprises the friction plate mutually arranging dorsad on described the first square groove and described the second square groove.

39. according to the electromagnetic fan clutch described in claim 38, it is characterized in that: the each of described coil only has terminal to draw from the iron core through hole of described iron core body.

40. according to the electromagnetic fan clutch described in claim 39, it is characterized in that: the bonding end of described coil is directly connected with described iron core body.

41. according to the electromagnetic fan clutch described in claim 40, it is characterized in that: described terminal and bonding end are all positioned at the same side of described iron core body.

42. according to the electromagnetic fan clutch described in any one in claim 37 to 41, it is characterized in that: the first described square groove and the each of the second described square groove have enhancing line at opening end madial wall.

43. according to the electromagnetic fan clutch described in claim 42, it is characterized in that: the depth of section of described enhancing line is 0.1 millimeter to 5 millimeters.

44. according to the electromagnetic fan clutch described in claim 42, it is characterized in that: the both sides of described iron core body have respectively the first adhesive gap and the second adhesive gap.

45. according to the electromagnetic fan clutch described in claim 43, it is characterized in that: the both sides of described iron core body have respectively the first adhesive gap and the second adhesive gap.

46. according to the electromagnetic fan clutch described in any one in claim 37 to 41, it is characterized in that: the both sides of described iron core body have respectively the first adhesive gap and the second adhesive gap.

47. according to the electromagnetic fan clutch described in claim 44, it is characterized in that, comprises main shaft, and each terminal of described coil are drawn from the wire lead slot of main shaft.

48. according to the electromagnetic fan clutch described in claim 47, it is characterized in that, described wire lead slot is multiple and symmetrical.

49. according to the electromagnetic fan clutch described in claim 48, it is characterized in that, described main shaft has two stages.

50. according to the electromagnetic fan clutch described in claim 49, it is characterized in that the tubular part that described main shaft is hollow.

51. according to the electromagnetic fan clutch described in claim 45, it is characterized in that, comprises main shaft, and each terminal of described coil are drawn from the wire lead slot of main shaft.

52. according to the electromagnetic fan clutch described in claim 51, it is characterized in that, described wire lead slot is multiple and symmetrical.

53. according to the electromagnetic fan clutch described in claim 52, it is characterized in that, described main shaft has two stages.

54. according to the electromagnetic fan clutch described in claim 53, it is characterized in that the tubular part that described main shaft is hollow.

55. according to the electromagnetic fan clutch described in claim 46, it is characterized in that, comprises main shaft, and each terminal of described coil are drawn from the wire lead slot of main shaft.

56. according to the electromagnetic fan clutch described in claim 55, it is characterized in that, described wire lead slot is multiple and symmetrical.

57. according to the electromagnetic fan clutch described in claim 56, it is characterized in that, described main shaft has two stages.

58. according to the electromagnetic fan clutch described in claim 57, it is characterized in that the tubular part that described main shaft is hollow.

59. according to the electromagnetic fan clutch described in claim 58, it is characterized in that, comprise drive plate, tightly fit in the fan fixed disk bearing on described main shaft in described drive plate left side, drive fit fan fixed disk on the outer ring of described fan fixed disk bearing, install the second axle sleeve near described fan fixed disk bearing left side drive fit on described main shaft, described fan fixed disk left side is connected to big spring sheet and large adhesive dish, the iron core through hole of described iron core body tightly fits on described main shaft and is close to the left side of described the second axle sleeve, be equiped with fastening cover rigid bearing near described iron core body left side drive fit on described main shaft, its outer ring drive fit is installed fastening cover, on described fastening cover, be also equiped with successively submissile reed and little adhesive dish, described fastening cover rigid bearing is held by the fastener hole of described fastening cover, and with the inwall drive fit of described fastener hole, the screw thread of fixing bolt and described main shaft screws mutually.

60. according to the electromagnetic fan clutch described in claim 59, it is characterized in that, described fan fixed disk has first annular sidewall of upper shield on described iron core body, be inlaid with annular soft iron in described the first annular side wall ends, on described fastening cover, be connected to magnet fixed disc cover, its inner rim is connected to ring magnet fixed tray.

61. according to the electromagnetic fan clutch described in claim 59, it is characterized in that, described fan fixed disk has circular groove to hold magnet fixed disc, described fastening cover has first annular sidewall of upper shield on described iron core body, is inlaid with annular soft iron in described the first annular side wall ends.