CN105484849B

CN105484849B - Safety type four-speed electromagnetic fan clutch and its control device, control method

Info

Publication number: CN105484849B
Application number: CN201510975055.9A
Authority: CN
Inventors: 王兆宇; 刘中银; 刘海涛; 刘月男
Original assignee: LONGKOU ZHONGYU MACHINERY CO Ltd
Current assignee: Longkou Zhongyu Machinery Co ltd
Priority date: 2015-09-30
Filing date: 2015-12-22
Publication date: 2018-11-06
Anticipated expiration: 2035-12-22
Also published as: CN105484849A; CN205277580U; CN105604673A; CN205532835U; CN105604673B

Abstract

Safety type four-speed electromagnetic fan clutch and its control device of the present invention, control method, clutch includes a fast electromagnetic clutch device, eddy current permanent-magnet flexible drive device, iron core member, control device passes through temperature sensor, speed probe, pressure sensor, electronic control module, Intelligent oil-saving control module monitoring data, and the data monitored are compared with the setting value in clutch, divide situation control above-mentioned one fast electromagnetic clutch device in conjunction with according to the real-time rotating speed of engine, eddy current permanent-magnet flexible drive device, the keying of iron core member, and then intelligent control cooling fan rotation speed, clutch is set easily to switch between multi gear rotating speed.It can really realize that zero-speed operates the present invention provides a kind of, and rotation speed change is steadily reliable, the device of the small clutch of rotating speed slippage and the intelligent control clutch, method.

Description

Safety type four-speed electromagnetic fan clutch and its control device, control method

Technical field

The present invention relates to a kind of magnetic drive clutch, more particularly to a kind of safety type four-speed electromagnetic fan clutch and Its control device, control method.

Background technology

Currently, electromagnetic fan clutch realizes cooling fan speed change by electromagnetic coil principle of induction, saved to reach Fuel oil, the purpose for reducing energy consumption.

Present engine-cooling system carries out wind cooling temperature lowering by cooling fan to the water temperature of engine thermal cycle system, dissipates Electromagnetic fan clutch is housed, the working condition by adjusting cooling fan carries out varying strength between Hot-air fan and engine Cooling.Currently, electromagnetic fan clutch is changed according to water tank temperature or ac control circuit break-make, above-mentioned control parameter are not examined The influence for considering coolant liquid, charge air cooler, hydraulic fluid temperature and compressor of air conditioner rotating speed, cannot meet each parts and be in best work Condition.Since raising and reducing for engine speed causes engine cool speed quickly to increase or quickly reduce, lead to engine The operating temperature range of off-target；If air-conditioning is opened, electromagnetic fan clutch full-speed operation causes the wave of engine power Take.

A kind of three speed clutch are disclosed in the Chinese invention patent of Patent No. ZL200810139812.9, may be implemented Transfer low speed, flexible middling speed, runs at high speed at full speed.When small coil is powered, the soft magnet that is equipped in the end face of fan terminal pad inner cavity Several permanent magnets being equipped at intervals on the end face of corresponding magnet fixed disc with fan terminal pad form current vortex magnetic field, band Dynamic cooling fan rotation forms two speed of flexibility.Such three-speed electromagnetic fan clutch, fan middling speed can only achieve full speed 30%~40%, therefore, engine water temperature cannot meet optimum working temperature when middling speed is run, and need frequently in middling speed and full speed Between convert, and since rotating speed slippage is big, be also easy to produce impact, the big, radiation energy consumption that generates noise is than big, and since level-one driving is Bearing drives cooling fan movement with the transfer that motive spindle rotation generates, therefore a fast rotating speed is restricted.

It is automobile-used double soft that a kind of high-power heavy type is disclosed in the Chinese invention patent of Patent No. ZL201010272698.4 Property driving electromagnetic fan clutch, realize electromagnetic fan clutch by static cold start-up be switched to level-one flexible buffer driving Be switched to two level double-flexibility buffered-display driver again, the double electric eddy-magnetic occasions of two level at strength driving under drive cooling fan rotation Turn, double-flexibility drives the rotating speed slippage and number for reducing switching.

But above two electromagnetic fan clutch cannot achieve zero-speed operating, in cold start-up with low speed or one Grade flexible drive causes engine warm-up time long, and especially in extremely frigid zones, energy loss greatly increases.Moreover, above two The iron core member of clutch can cause harness to be torn with main axis, meanwhile, conducting wire also easily with the connection on engine Part rubs, and generation rubs phenomenon.

Invention content

The technical problem to be solved in the present invention is to provide a kind of safety type four-speed electromagnetic fan clutch, the clutch is real Zero-speed operating is realized, and rotation speed change is steadily reliable, rotating speed slippage is small, is not easy to impact, and radiation energy consumption is than small, service life It is long.

Safety type four-speed electromagnetic fan clutch of the present invention, including dead axle are rotatably connected to coaxial wind on dead axle Fan terminal pad, belt pulley, the fan terminal pad and belt pulley mutually from side end face installing connector, it is adjacent with belt pulley One side end face is attracted disk by the first shrapnel connected first, and there are gaps between the belt pulley and the first actuation disk, wherein：

It is installed with the fast electromagnetic clutch device of one coaxially and be fixed on dead axle in the fan terminal pad, described one Fast electromagnetic clutch device can limit the rotation of fan terminal pad,

Fan terminal pad inner cavity is also installed with the first coaxial magnet fixed disc, first magnet fixed disc Adjacent with belt pulley and connect with fixed-axis rotation, the diameter of first magnet fixed disc is less than the straight of the fan terminal pad Diameter, first magnet fixed disc are attracted disk on a side end face of belt pulley by the second shrapnel connected second,

Whirlpool electricity is installed between the fan terminal pad and belt pulley, between fan terminal pad and the first magnet fixed disc Permanent magnetism flexible drive device is flowed, the eddy current permanent-magnet flexible drive device can generate current vortex magnetic field driving fan terminal pad Rotation,

The coaxial iron core member being fixed on dead axle is inlaid in the belt pulley, the iron core member and first are attracted There is gap between disk, the second actuation disk and disk, the second actuation disk actuation can be attracted with first respectively.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein described one fast electromagnetic clutch device is located at fan terminal pad In the cavity surrounded with the first magnet fixed disc, a fast electromagnetic clutch device include along the axial installation successively of dead axle and with it is fixed The coaxial shrapnel of axis, actuation disk, coil part and iron-core element, the actuation disk are fixed on by shrapnel in fan terminal pad On wall surface, the iron-core element of embedded wired coil element is fixed on dead axle, and there are gaps between actuation disk and the iron-core element And it can be pulled together.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein described one fast electromagnetic clutch device is located at fan terminal pad In the external side outside wall surface far from belt pulley, described one fast electromagnetic clutch device include along the axial installation successively of dead axle and with it is fixed The coaxial shrapnel of axis is attracted disk, coil part and iron-core element, and the disk that is attracted is fixed on the outer of fan terminal pad by shrapnel On wall surface, the iron-core element of embedded wired coil element is fixed on dead axle, and there are gaps between actuation disk and the iron-core element And it can be pulled together.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the eddy current permanent-magnet flexible drive device includes：

The permanent magnet A being arranged between belt pulley and fan terminal pad and magnetic conduction soft board A, the belt pulley connect close to fan The side for connecing disk is fixed with heat dissipation plate, and the magnetic conduction soft board A is embedded in the heat dissipation plate, and permanent magnetism is installed in the fan terminal pad Body A, the permanent magnet A is opposite with magnetic conduction soft board location A and gap arranges that the permanent magnet A, magnetic conduction soft board location A are interchangeable；

The permanent magnet B being arranged between fan terminal pad and the first magnet fixed disc and magnetic conduction soft board B, the permanent magnet B Fan terminal pad is installed in along its axial internal face, the magnetic conduction soft board B is embedded in first magnet fixed disc, described Permanent magnet B, magnetic conduction soft board B location are opposite and gap arranges that the permanent magnet B, magnetic conduction soft board B location are interchangeable,

The iron core member includes the iron core two for being embedded with the iron core one of coil one, and being embedded with coil two, the iron core One, between iron core two exists between the radially coaxially arranged side by side from outside to inside of dead axle, the actuation disk of the iron core one and first Gap and can with first be attracted disk be attracted, the iron core two and second be attracted disk between there are gap and can with second be attracted disk It is attracted.

Safety type four-speed electromagnetic fan clutch of the present invention further includes terminal pad one, the fan terminal pad and belt pulley The connected terminal pad one in adjacent side, the side adjacent with belt pulley of the terminal pad one pass through the first shrapnel connected first and are attracted Disk, the inside of the terminal pad one are connected iron pan, and the iron pan side is connected aluminium dish, and first magnet fixed disc is located at terminal pad In one,

Further include drive plate, the drive plate is connected in belt pulley close to the side of fan terminal pad, institute by ring flange It states the first magnet fixed disc and disk is attracted by the second shrapnel connected second on a side end face of drive plate,

The eddy current permanent-magnet flexible drive device includes：

The permanent magnet A being arranged between drive plate and terminal pad one and magnetic conduction soft board A, the drive plate are connected close to fan The side of disk is fixed with heat dissipation plate, and the magnetic conduction soft board A is embedded in the heat dissipation plate, and permanent magnet A is installed in the terminal pad one, The permanent magnet A is opposite with magnetic conduction soft board location A and gap arranges that the permanent magnet A, magnetic conduction soft board location A are interchangeable；

The permanent magnet B being arranged between aluminium dish and the first magnet fixed disc is installed in magnetic conduction soft board B, the permanent magnet B In aluminium dish, the magnetic conduction soft board B is embedded in first magnet fixed disc, the permanent magnet B, magnetic conduction soft board B location it is opposite and Gap arranges that the permanent magnet B, magnetic conduction soft board B location are interchangeable,

The iron core member is connected with dead axle, including is embedded with the iron core one of coil one, and is embedded with the iron core of coil two Two, in the radially coaxially arranged side by side from outside to inside of dead axle, the iron core one and first is attracted disk for the iron core one, iron core two Between there are gap and disk can be attracted with first be attracted, the iron core two and second is attracted between disk that there are gaps and can be with Second, which is attracted disk, is attracted.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the dead axle axial direction recessing, the iron-core element, iron Conducting wire in core one, iron core two is exported by groove.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the side end face that the drive plate is attracted disk close to first Several annular magnetic conductive grooves one coaxial with dead axle are equipped with, several described annular magnetic conductive grooves one are along the radial by interior of drive plate Arrangement outward.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein described one fast electromagnetic clutch device further includes magnetic conductive disk, The magnetic conductive disk is fixedly mounted on dead axle, is sequentially equipped with shrapnel in dead axle axial direction successively, is attracted disk, magnetic conductive disk, element coil Part, iron-core element, there are gaps between the magnetic conductive disk and actuation disk.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the eddy current permanent-magnet flexible drive device further includes setting Set the permanent magnet C between fan terminal pad and the first magnet fixed disc, magnetic conduction soft board C, the permanent magnet C are installed in fan company It connects on the internal face of disk radially, the magnetic conduction soft board C is embedded in the first magnet fixed disc, the permanent magnet C, magnetic conduction soft board Radially position is opposite and gap arranges that the permanent magnet C, magnetic conduction soft board location of C are interchangeable in dead axle by C.

Safety type four-speed electromagnetic fan clutch of the present invention further includes the shell being fixed on holder, the dead axle, iron core Component is each attached on shell, and the connector is terminal pad two, and the iron core one, iron core two are integrally molded so as iron core four, institute It states iron core four and radially and shows inside and outside two inner cavities coaxial with dead axle in dead axle, coil four is embedded in inner inner cavity, line In the outer inner cavity of five insertion of circle, the iron core four and first, which is attracted, to be had gap between disk, the second actuation disk and can inhale It is combined.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the fan fixed disk inner cavity be installed with it is coaxial Fixed disk, the fixed disk is between the first magnet fixed disc and belt pulley, described solid along the radial direction of the fan fixed disk The outer circumference surface of price fixing and the internal face of fan fixed disk are connected, and the eddy current permanent-magnet flexible drive device further includes being installed in Permanent magnet E on fixed disk, the permanent magnet E is opposite with magnetic conduction soft board location of C, and the permanent magnet E is replaced by magnetic conduction soft board D。

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the dead axle axial direction recessing, radially convinces string holes by patient analysis, institute The conducting wire stated in iron-core element is exported by groove, wire guide.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the side end face that the belt pulley is attracted disk close to first Several annular magnetic conductive grooves two coaxial with dead axle are equipped with, several described annular magnetic conductive grooves two are along the radial by interior of belt pulley Arrangement outward.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the fan terminal pad radially be equipped with observation panel, Reinforcing rib.

Safety type four-speed electromagnetic fan clutch of the present invention, wherein the fan terminal pad is close to the end face of pulley side Upper connected locking plate, the locking plate are attracted disk by the first shrapnel connected first, several are connected on the locking plate along it The equally distributed fixed block of circumferencial direction, several described permanent magnet A are fixedly mounted on fixed block.

The present invention also provides a kind of control devices of control safety type four-speed electromagnetic fan clutch, including：

Temperature sensor, speed probe, pressure sensor, electronic control module, Intelligent oil-saving control module and safety type four Fast electromagnetic fan clutch,

The temperature sensor for monitoring engine water temperature, charge air cooler temperature, transmission oil temperature, hydraulic fluid temperature in real time Equal temperature control parameters, and above-mentioned each temperature information t is sent to Intelligent oil-saving control module；

The pressure sensor is used for monitoring pressure in real time control parameter, i.e. compressor of air conditioner pressure p, and the pressure is believed Breath is sent to Intelligent oil-saving control module；

The speed probe in real time monitor rotating speed control parameter, i.e. compressor of air conditioner rotating speed v, engine speed V, And the rotary speed information is sent to Intelligent oil-saving control module；

The electronic control module remains unchanged duration T for recording engine water temperature, and the temporal information is sent To Intelligent oil-saving control module；

Intelligent oil-saving control module one end connects with temperature sensor, speed probe, pressure sensor, electronic control module It connects, the other end is connect with safety type four-speed electromagnetic fan clutch, is passed for receiving temperature sensor, speed probe, pressure Sensor and the signal of electronic control module transmission are simultaneously judged, and send break-make electric signal to described one fast electromagnetism according to judging result Arrangement of clutch, iron core member are to control the operation range of safety type four-speed electromagnetic fan clutch.

The present invention also provides it is a kind of using above-mentioned apparatus control safety type four-speed electromagnetic fan clutch control method, Include the following steps：

1. monitoring following control parameter and sending it to Intelligent oil-saving control module：

The temperature t that each temperature sensor of temperature sensor monitors real-time monitors, unit DEG C；

Speed probe monitors the real-time rotating speed V of the real-time rotating speed v of compressor of air conditioner, unit r/min and engine, Unit r/min；

Pressure sensor monitoring compressor of air conditioner pressure p, unit Mpa；

Electronic control module monitoring engine water temperature remains unchanged duration T, unit min；

2. presetting following setting value in Intelligent oil-saving control module：

Each corresponding level-one of temperature control parameter is attracted temperature value K₁, two level actuation temperature value K₂, three-level actuation temperature Value K₃, level-one power-off temperature value k₁, two level power-off temperature value k₂, three-level power-off temperature value k₃, unit DEG C, wherein k₁<K₁<k₂<K₂< k₃<K₃；

4 grades of tachometer value v of compressor of air conditioner₁, v₂, v₃, v₄, unit r/min, wherein v₁<v₂<v₃<v₄；

4 grades of tachometer value V of engine₁, V₂, V₃, V₄, unit r/min, wherein V₁<V₂<V₃<V₄；

Compressor of air conditioner pressure value P, unit Mpa；

Engine water temperature remains unchanged duration T ', unit min；

3. by step 1. in compressor of air conditioner pressure p and step 2. in setting value compressor of air conditioner pressure value P carry out Compare, when p > P, Intelligent oil-saving control module control coil element is powered with the power-off of coil two, coil one；

4. step 3. in, when p < P, by step 1. in other monitor values and step 2. in setting value be compared, Intelligent oil-saving control module is according to comparison result and combines the real-time tachometer value V situations control coil element of engine, coil one, line The power on/off of circle two, wherein m are integer variable, and 1≤m < 4：

(1) when engine start, Intelligent oil-saving control module control coil element 3 is powered；

(2) the temperature value t that any temperature sensor transmits is increased to its corresponding actuation temperature K_mOr compressor of air conditioner rotating speed V is increased to v_(m+1)When value, Intelligent oil-saving control module is in (0~V according to the real-time tachometer value V of engine₁)、(V₁~V₂)、(V₂ ~V₃)、(V₃~V₄) different range carry out the power on/off of intelligent control coil part, coil one, coil two；

(3) the temperature value t that any temperature sensor transmits cools to its corresponding break-off signal k_mOr compressor of air conditioner turns Fast v is reduced to v_mWhen value, Intelligent oil-saving control module is in (0~V according to the real-time tachometer value V of engine₁)、(V₁~V₂)、(V₂~ V₃)、(V₃~V₄) different range carry out the power on/off of intelligent control coil part, coil one, coil two；

(4) when the duration T that engine water temperature remains unchanged is equal to preset time T '：

When the rotating speed of safety type four-speed electromagnetic fan clutch >=bis- speed, Intelligent oil-saving control module controls safety type four Fast electromagnetic fan clutch rotating speed reduces level-one；

When the rotating speed of safety type four-speed electromagnetic fan clutch is a speed, Intelligent oil-saving control module controls safety type four Fast electromagnetic fan clutch rotating speed remains unchanged.

The step of above-mentioned control method 4. in：

(i) it is attracted temperature value K when the value of any temperature control parameter rises to its corresponding level-one₁Or compressor of air conditioner turns Fast v is increased to its corresponding second rotating speed v₂When：

I engine speed is in 0~V₁In range, Intelligent oil-saving control module control coil element, coil two power off, coil It is powered after one delay h；

Ii engine speed is in V₁~V₂In range, the power-off of Intelligent oil-saving control module control coil element, coil two are delayed It is powered after h or coil part, coil one, coil two powers off；

Iii engine speed is in V₂~V₃In range, Intelligent oil-saving control module control coil element, coil one, coil two Power off；

Iv engine speed is in V₃~V₄In range, Intelligent oil-saving control module control coil element, coil one, coil two Power off；

(ii) when compressor of air conditioner rotating speed v is increased to its corresponding third rotating speed v₃Or the value of any temperature control parameter increases It is attracted temperature value K to its corresponding two level₂When：

I engine speed is in 0~V₁In range, Intelligent oil-saving control module control coil two, coil part power-off, coil It is powered after one delay h；

Ii engine speed is in V₁~V₂In range, Intelligent oil-saving control module control coil element, coil one power off, line It is powered after two delay h of circle or coil two, coil part powers off, be powered after the delay of coil one h；

Iii engine speed is in V₂~V₃In range, the power-off of Intelligent oil-saving control module control coil element, coil two prolong When h after be powered；

Iv engine speed is in V₃~V₄In range, Intelligent oil-saving control module control coil element, coil one, coil two Power-off or coil part, coil one powers off, and is powered after the delay of coil two h；

(iii) when compressor of air conditioner rotating speed v is increased to its corresponding 4th rotating speed v₄Or the value of any temperature control parameter increases It is attracted temperature value K to its corresponding three-level₃When：

Ii engine speed is in V₁~V₂In range, Intelligent oil-saving control module control coil two, coil part power-off, line It is powered after one delay h of circle；

Iii engine speed is in V₂~V₃, Intelligent oil-saving control module control coil element, coil one power off, and coil two prolongs When h after be powered or coil two, coil part power-off, coil one be delayed h after be powered；

Iv engine speed is in V₃~V₄In range, Intelligent oil-saving control module control coil element, coil one power off, line It is powered after two delay h of circle or coil two, coil part powers off, be powered after the delay of coil one h；

(iv) when compressor of air conditioner rotating speed v is reduced to its corresponding third rotating speed v₃Or the value of any temperature control parameter drops to Its corresponding three-level power-off temperature value k₃When：

Iii engine speed is in V₂~V₃In range, Intelligent oil-saving control module control coil element, the power-off of coil one, line It is powered after two delay h of circle；

Iv engine speed is in V₃~V₄In range, Intelligent oil-saving control module control coil element, coil one, coil two It powers off or coil part, coil one powers off, is powered after the delay of coil two h；

(v) when compressor of air conditioner rotating speed v is reduced to its corresponding second rotating speed v₂Or the value of any temperature control parameter drops to Its corresponding two level power-off temperature value k₂When：

Ii engine speed is in V₁~V₂In range, Intelligent oil-saving control module control coil element, the power-off of coil one, line It is powered after two delay h of circle or coil part, coil one, coil two powers off；

(vi) when compressor of air conditioner rotating speed v is reduced to its corresponding first rotating speed v₁Or the value of any temperature control parameter drops to Its corresponding level-one power-off temperature value k₁When, Intelligent oil-saving control module control coil one, coil two power off, and coil part prolongs When h after be powered.

In above-mentioned control method, the preset time T ' is 10~30min, h 2s.

The clutch of the present invention is truly realized zero-speed operating by the fast electromagnetic clutch device of setting one, in high speed state Under can normally be cooled down to engine, hence it is evident that reduce cooling fan three speed full speed between switching frequencies, simultaneously Operating noise is reduced, the impact endurance test shock abrasion to engine connector and electromagnetic fan clutch is reduced.Moreover, above-mentioned Under each coil all powers off or vehicle cannot stop in time or other complex situations that temporarily Parking permitted, the present invention Clutch can be worked under two fast middling speed flexible drives in the case that power free.Meanwhile the control of clutch of the invention Device processed and control method intelligently adjust the operation range of electromagnetic fan clutch according to different operating modes, further improve energy saving Effect, cooling fan rotation speed variation is steady reliable, and rotating speed slippage is small, and radiation energy consumption reduces to engine and electromagnetism wind than small Clutch impact is fanned, cooling fan operating noise is reduced, extends cooling fan and electromagnetic fan clutch service life, and send out Motivation is in best working condition.

The safety type four-speed electromagnetic fan clutch to the present invention and its control device, control method are made below in conjunction with the accompanying drawings It further illustrates.

Description of the drawings

Fig. 1 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 1 of the present invention；

Fig. 2 is the fixed block connection relation vertical view of embodiment 1；

Fig. 3 is the partial enlarged view at A in Fig. 1；

Fig. 4 is the partial enlarged view at B in Fig. 1；

Fig. 5 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 2 of the present invention；

Fig. 6 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 3 of the present invention；

Fig. 7 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 4 of the present invention；

Fig. 8 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 5 of the present invention；

Fig. 9 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 6 of the present invention；

Figure 10 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 7 of the present invention；

Figure 11 is the main view part section of the mode of texturing of safety type four-speed electromagnetic fan clutch embodiment 7 of the present invention Figure；

Figure 12 is the partial enlarged view at C in Figure 11；

Figure 13 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 8 of the present invention；

Figure 14 is the main view partial cutaway view of safety type four-speed electromagnetic fan clutch embodiment 9 of the present invention；

Figure 15 is common three-speed electromagnetic fan clutch, double-flexibility electromagnetic fan clutch and safety type four-speed of the present invention electricity The rotary speed property comparison diagram of magnetic fan clutch；

Figure 16 is the structural schematic diagram of the control device of the safety type four-speed electromagnetic fan clutch of the present invention；

Figure 17 is the flow chart of the control method of safety type four-speed electromagnetic fan clutch of the present invention.

Specific implementation mode

Embodiment 1：

As shown in Figures 1 to 4, safety type four-speed electromagnetic fan clutch of the present invention, including dead axle 13, dead axle 13 pass through branch Frame 28 is fixed on engine or engine pan.The axial recessing 131 of dead axle 13, radially convinces string holes 132 by patient analysis.In dead axle 13 Left end is equipped with coaxial fan terminal pad 5, and right end is installed with coaxial belt pulley 8.Fan terminal pad 5 passes through axis 1 are held to be rotatablely connected with dead axle 13.Belt pulley 8 is rotatablely connected by bearing 3 14 and dead axle 13.Fan terminal pad 5 is in radial direction It is equipped with observation panel 51, iron core member in following one fast electromagnetic clutch device 100 of 51 ventilation and heat of observation panel and detection can be passed through Part 4 and the gap width being attracted between disk 2.Fan terminal pad 5 is radially provided with reinforcing rib 52 at it, and observation panel 51 and reinforcing rib 52 can Wind path is formed, effective temperature-reducing is carried out to the inside connector of safety type electromagnetic fan clutch in the cooling fan course of work.

5 left side of fan terminal pad, i.e., with 8 phase of belt pulley from one side be connected with connector, the connector packet Contain but be not limited to cooling fan, the present embodiment is illustrated by taking cooling fan (not shown) as an example.It is connected in the fan The right side inner cavity of disk 5 is installed with a fast electromagnetic clutch device 100, and a fast electromagnetic clutch device 100 is located at fan terminal pad 5 and the In the cavity that one magnet fixed disc 23 surrounds, a fast electromagnetic clutch device 100 includes at least axial suitable from left to right along dead axle 13 The shrapnel 1 coaxial with dead axle 13 of sequence installation is attracted disk 2, coil part 3 and iron-core element 4, is attracted disk 2 and is fixed by shrapnel 1 Mounted on the right side inner cavity end face of fan terminal pad 5, iron-core element 4 is fixedly mounted on dead axle 13, is attracted disk 2 and iron-core element There are gap, 4 embedded wired coil elements 3 of iron-core element between 4.Conducting wire in iron-core element 4 passes through the groove on dead axle 13 131, wire guide 132 exports, therefore the clutch of the present invention is it is possible to prevente effectively from harness is torn.

Preferably, to increase the suction and torque of a fast electromagnetic clutch device 100, a fast electromagnetic clutch device 100 also wraps Include magnetic conductive disk 29.Magnetic conductive disk 29 increases contact area, while can increase electromagnetism by the magnetic conductive groove of 29 reasonable design of magnetic conductive disk Suction, to increase torque.Magnetic conductive disk 29 is fixedly mounted on dead axle 13, is sequentially equipped with from left to right in the axial direction of dead axle 13 Shrapnel 1 is attracted disk 2, magnetic conductive disk 29, coil part 3 and iron-core element 4, magnetic conductive disk 29 and is attracted between disk 2 there are gap, When coil part 3 is powered, magnetic conductive disk 29 is attracted with disk 2 is attracted, and clutch realizes fast zero rotation speed operation, when coil part 3 is disconnected When electric, magnetic conductive disk 29 is detached with disk 2 is attracted, and by controlling the break-make of each coil in following iron core members 300, clutch realization removes Other outer rotation speed operations of one speed, therefore must have gap between magnetic conductive disk 29 and actuation disk 2, it otherwise cannot achieve multi-speed fortune Turn.Magnetic conductive disk 29, because there are gaps can influence magnetic air gap, can influence magnetic force with iron-core element 4 with or without gap, therefore, It is very close to each other for having gap, the suction and torque in a speed are big.

In fan terminal pad 5 and 8 adjacent surface of belt pulley, i.e. the opposite end face of the two is driven equipped with eddy current permanent-magnet flexibility Dynamic device 200, eddy current permanent-magnet flexible drive device 200 include permanent magnet A20, magnetic conduction soft board A19.5 right side of fan terminal pad Being connected locking plate 22 on the end face of belt pulley 8 can be by locking plate 22 and wind when whole coils in clutch power off It fans terminal pad 5 to be connected, realizes clutch full-speed operation, therefore, locking plate 22 is ensured after the coil blackout in clutch fails The emergency set of clutch full-speed operation, no locking plate 22 realize full-speed operation after can not ensureing clutch failure.Locking plate 22 right end face by the first shrapnel 6 be connected first be attracted disk 7, belt pulley 8 and first be attracted disk 7 between there are gaps.Lock It is connected on tight disk 22 3 and two permanent magnets is installed along the equally distributed fixed block 21 of 22 circumferencial direction of locking plate, fixed block 21 A20, setting fixed block 21 greatly facilitate the fixation of permanent magnet A20.A20 number of permanent magnet is for 2 in the present embodiment Illustrate, also can add multiple, multiple settings, use principle is identical with this, does not repeat herein.8 left side of belt pulley, which is connected, radiates Disk 18, magnetic conduction soft board A19 are embedded in heat dissipation plate 18, and the magnetic conduction positions soft board A19 and permanent magnet A20 or so be opposite and magnetic conduction soft board There are gaps between A19 and permanent magnet A20.Meanwhile the two position can be interchanged.

5 inner cavity of fan terminal pad is also installed with the first coaxial magnet fixed disc 23, the first magnet fixed disc 23 peace It is adjacent with belt pulley 8 mounted in the right side of a fast electromagnetic clutch device 100, and be rotatablely connected by bearing 2 26 and dead axle 13.The The diameter of one magnet fixed disc 23 is less than the diameter of fan terminal pad 5, i.e., radial along dead axle 13, outside the first magnet fixed disc 23 There are gaps, the outer circumference surface of the first magnet fixed disc 23 to be located at a speed between periphery and the inner peripheral surface of fan terminal pad 5 In the inner cavity that the outer circumference surface of electromagnetic clutch device 100 is surrounded with 5 inner peripheral surface of fan terminal pad.First magnet fixed disc 23 is right End face is attracted disk 16 close to a side end face of belt pulley 8 by the second shrapnel 17 connected second, fan terminal pad 5 is along its axis To 23 left side of internal face and the first magnet fixed disc relative position on be respectively equipped with permanent magnet B25, magnetic conduction soft board B24. Permanent magnet B25, the positions magnetic conduction soft board B24 can be interchanged, as long as the two is opposite.

It is installed with iron core member 300 in the coaxial fixation of the right end of dead axle 13, iron core member 300 is embedded in belt pulley 8, and It is fixed on dead axle 13, will not be rotated by fixed plate 15.Dead axle 13 is fixed on holder 28.Iron core member 300 includes iron core With the coil being embedded in iron core, iron core member 300 includes at least two iron core and 2 coils.Specifically, iron core member 300 wraps The iron core 2 11 for including the iron core 1 for being embedded with coil 1 and being embedded with coil 2 12, iron core 1 and iron core 2 11 are in dead axle 13 It is radially arranged side by side from outside to inside, and iron core 1 and iron core 2 11 are coaxial with dead axle 13.

Preferably, on 8 left side of belt pulley, i.e., belt pulley 8 is attracted a side end face of disk 7 equipped with several close to first The coaxial annular magnetic conductive groove 2 81 with dead axle 13, several annular magnetic conductive grooves 2 81 are arranged from inside to outside along the radial direction of belt pulley 8. The effect of annular magnetic conductive groove 2 81 be guiding magnetic circuit, to increase electromagnetic attraction, if without if electromagnetic attraction it is less than normal, lead to belt Wheel 8 and the first actuation disk 7 can not be attracted.

The clutch of the present embodiment has following 4 rotating speeds：

One speed：1. when coil 1 and coil 2 12 are in off-position, 3 delay time h of coil part is powered, 2. when When coil 2 12 is in off-position, coil 1 is become powering off from energization, and 3 delay time h of coil part is powered, and 3. works as coil One 10 when being in off-position, and coil 2 12 is become powering off from energization, and 3 delay time h of coil part is powered.Meet any of the above-described When condition, coil part 3 generates electromagnetic attraction and is attracted disk 2, since the iron-core element 4 where coil part 3 is integrally fixed at It on dead axle 13, therefore, is attracted disk 2 and is also fixed, pass through the connected fan terminal pad 5 of shrapnel 1 and fan with disk 2 is attracted The cooling fan being connected in terminal pad 5 is also fixed together, at this point, clutch does fast i.e. zero rotation speed operation.

Two speed：1. when coil 1 and coil 2 12 are in off-position, coil part 3 is become powering off from energization, 2. When coil 1 and coil part 3 are in off-position, coil 2 12 is become powering off from energization, 3. when coil 2 12 and coil When element 3 is in off-position, coil 1 is become powering off from energization.When meeting any of the above-described condition, the institute in clutch There is coil to power off not working, all actuation disks are not attracted yet, the magnetic conduction in eddy current permanent-magnet flexible drive device 200 It is two speed that soft board A19 and permanent magnet A20, which generates the cooling fan that current vortex magnetic field driving fan terminal pad 5 is connected with, i.e., middling speed is soft Property operating.

Three speed：1. when coil 1 is in off-position, coil part 3 is become powering off from energization, and coil 2 12 is delayed It is powered after time h, 2. when coil 1 and coil part 3 are in off-position, is powered after 2 12 delay time h of coil, 3. When coil part 3 is in off-position, coil 1 is become powering off from energization, and coil 2 12 is powered.Meet any of the above-described When part, coil 2 12 generates electromagnetic attraction and is attracted the second actuation disk 16, therefore belt pulley 8 drives 23 turns of the first magnet fixed disc Dynamic, 200 permanent magnet B25 of eddy current permanent-magnet flexible drive device, the magnetic conduction on the first magnet fixed disc 23 and fan fixed disk 5 are soft The cooling fan rotation that current vortex magnetic field drives fan terminal pad 5 to be connected with is generated between plate B24.In this case, second is attracted disk It after 16 are attracted, are equivalent to and belt pulley 8 and the first magnet fixed disc 23 is connected, increased compared with two speed and increase and is flexible at one It drives, thus substantially improves transmission effect, improve rotating speed, at this point, cooling fan is three speed, i.e. the more flexibilities of high speed are transported Turn.

At full speed：1. when coil 2 12 and coil part 3 are in off-position, it is powered after one 10 delay time h of coil, 2. When coil two is in off-position, coil part 3 powers off, and is powered after one 10 delay time h of coil；3. at coil part 3 When off-position, coil 2 12 is become powering off from energization, and coil 1 is powered.When meeting any of the above-described condition, coil 1 It generates electromagnetic attraction and is attracted the first actuation disk 7, thus belt pulley 8 and fan terminal pad 5 are connected, belt pulley 8 is not required to through other Component is driven, but directly fan terminal pad 5 is driven to rotate, therefore rotating speed greatly improves, at this point, cooling fan middling speed flexibility is transported Switch to four-speed, i.e. full-speed operation.

Embodiment 2：

As shown in figure 5, the embodiment and embodiment 1 difference lies in：It is not arranged in embodiment 1 in fan terminal pad 5 First magnet fixed disc 23, iron core member 300 include iron core 1 and the coil 1 being embedded in iron core 1.With four-speed clutch 4 speed conditions of device similarly, due to having lacked the first magnet fixed disc 23 and corresponding permanent magnet B25, magnetic conduction soft board B24, So the clutch of the present embodiment has following 3 rotating speeds：

One speed：1. 3 delay time h of coil part is powered, 2. coil 1 powers off, and 3 delay time h of coil part is powered. When meeting any of the above-described condition, coil part 3 generates electromagnetic attraction and is attracted disk 2, and cooling fan is a speed, i.e. zero-turn speed Operating.

Two speed：1. coil 1 is in off-position, coil part 3 is become powering off from energization, and 2. coil part 3 is in disconnected Electricity condition, coil 1 are become powering off from energization.When meeting any of the above-described condition, magnetic conduction soft board A19 generates electricity with permanent magnet A20 The cooling fan that eddy current magnetism driving fan terminal pad 5 is connected with does two speed, i.e. middling speed flexibility operates.

At full speed：1. coil part 3 is in off-position, it is powered after one 10 delay time h of coil, 2. coil part 3 powers off, It is powered after one 10 delay time h of coil.Coil 1, which is powered, generates electromagnetic attraction actuation the first actuation disk 7, and cooling fan is at full speed Operating.

Embodiment 3：

As shown in fig. 6, the embodiment 3 is with embodiment 1, difference lies in, will in the case where keeping function identical The position of permanent magnet B25, magnetic conduction soft board B24 in embodiment 1 change, in the inner wall and of fan terminal pad 5 radially The corresponding position of one magnet fixed disc 23 radially is respectively equipped with the opposite permanent magnet C30 in position, magnetic conduction soft board C31, and magnetic conduction is soft Plate C31 is embedded in the first magnet fixed disc 23, and outside, permanent magnet C30, magnetic conduction soft board C31 are first by permanent magnet C30 The radially ecto-entad of magnet fixed disc 23 is arranged.Similarly with embodiment 1, the position of permanent magnet C30, magnetic conduction soft board C31 It can be interchanged, function is constant after exchange.

Embodiment 4：

As shown in fig. 7, the embodiment is with embodiment 1, difference lies in increase embodiment 3 on the basis of embodiment 1 In permanent magnet C30, magnetic conduction soft board C31, thus increase a current vortex magnetic field, improve driving effect, improve three speed The speed of service, while reducing the full speed running time, thus it is more energy saving.

Embodiment 5：

As shown in figure 8, as a kind of deformation, difference lies in the clutches of the present embodiment with embodiment 1 for the embodiment 5 Be not directly connected cooling fan, and clutch further includes shell 33, and dead axle 13 is fixed on shell 33, and shell 33 is fixed on holder 28 On, iron core member 300 is fixed on shell 33.The clutch of the structure effectively reduces the axial distance of clutch, to fit The working environment smaller for space.The connector of 5 left side of fan terminal pad is terminal pad 2 34, which is used for can The indirect driving of the cooling fan of commutation can be an integral structure with fan terminal pad 5.Meanwhile for the ease of assembly, this reality It applies example and deformation is had also been made to iron core member 300 in embodiment 1, iron core 1 is integrally formed with iron core 2 11, forms an iron core four 32, iron core 4 32 radially and shows inside and outside two inner cavities coaxial with dead axle 13 in dead axle 13, and coil 4 321 is embedded in inner In inner cavity, coil 5 322 is embedded in outer inner cavity.1 action principle phase of above-mentioned deformed iron core member 300 and embodiment Together.

Embodiment 6：

As shown in figure 9, the embodiment and embodiment 1 further include the second magnet fixed disc 41, the difference lies in, clutch Three are attracted disk 43, third shrapnel 44 and fixed disk 35.5 inner cavity of fan fixed disk is installed with coaxial fixation disk 35, fixed 35 outer circumference surface of disk is connected with 5 inner wall of fan fixed disk and positioned at 23 right side of the first magnet fixed disc.Fixed disk 35 is located at second Between magnet fixed disc 41 and belt pulley 8.It is provided with the second magnet fixed disc between 35 and first magnet fixed disc 23 of fixed disk 41, there are gaps between fixed 35 and second magnet fixed disc 41 of disk.Second magnet fixed disc 41 and the first magnet fixed disc 23 It being rotatablely connected by composite bearing 40 and dead axle 13, the middle ring 401 of the first magnet fixed disc 23 and composite bearing 40 is connected, and second Magnet fixed disc 41 and the outer shroud 402 of composite bearing 40 are connected.

Second magnet fixed disc, 41 end face outside is that permanent magnet D42 is set on the wall surface of 35 side of fixed disk, fixed disk The magnetic conduction soft board D36 opposite with permanent magnet D42 is set on 35, the D36 insertions of magnetic conduction soft board are fixed in disk 35, and permanent magnet D42, magnetic conduction are soft The positions plate D36 are opposite and gap is arranged, as magnetic conduction soft board A19, permanent magnet A20 in embodiment 1, permanent magnet D42, magnetic conduction The positions soft board D36 are interchangeable.

Second is attracted disk 16 is connected by the second shrapnel 17 and the second magnet fixed disc 41, and third is attracted disk 43 and passes through third Shrapnel 44 and the middle ring 401 of composite bearing 40 are connected.

Iron core member 300 includes the iron core 1 for being embedded with coil 1, is embedded with the iron core 2 11 of coil 2 12 and embeds There are the iron core 3 38 of coil 3 39, iron core 1, iron core 2 11 and iron core 3 38 radially coaxial side by side from outside to inside in dead axle 13 Arrangement.

The present embodiment increases actuation tie point (third at one by increasing the second magnet fixed disc 41 and associated components Be attracted disk 43 and middle ring 401), a current vortex magnetic field (being generated by permanent magnet D42 and magnetic conduction soft board D36), the present embodiment from 4 speed conditions of clutch speed conditions and embodiment 1 similarly, do not repeat herein.The clutch of the present embodiment increases level-one A kind of transmission mechanism, the again more variations of rotating speed, produces five rotating speeds, therefore, the five speed clutch rotating speeds of the present embodiment are more Controllably, and the speed discrepancy of different operating gear is efficiently reduced, clutch is made to operate steadily, small, mill is impacted to associated components It damages small.

Embodiment 7：

As shown in Figure 10, difference lies in 5 inner cavity of fan fixed disk is installed with coaxial embodiment 7 with embodiment 3 Fixed disk 35, fixed disk 35 is between the first magnet fixed disc 23 and belt pulley 8, along the radial direction of fan fixed disk 5, fixed disk 35 outer circumference surface is connected with 5 internal face of fan fixed disk and positioned at the right side of the first magnet fixed disc 23, fixed disk 35 and the There are gap between one magnet fixed disc 23, fixes on disk 35 and be installed with permanent magnet E37, permanent magnet E37, magnetic conduction soft board C31 It sets opposite.Fixed disk 35 is for installing permanent magnet E37, and the installation of permanent magnet E37 can increase magnetic force, to improve rotating speed.As A kind of deformation of the embodiment, as shown in Figure 11, Figure 12, permanent magnet C30, magnetic conduction soft board C31 location swaps fix disk 35 at this time On permanent magnet E37 need replacing as magnetic conduction soft board D36.

Embodiment 8：

As shown in figure 13, difference lies in a fast electromagnetic clutch device 100 is preposition to be connected embodiment 8 in fan with embodiment 1 Disk outer end face is connect, i.e., one fast electromagnetic clutch device 100 is installed in the outside of fan fixed disk 5 far from the left end face of belt pulley 8 On.5 intracavity space of fan fixed disk is limited, inconvenient operation, and a fast electromagnetic clutch device 100 is installed in outside fan fixed disk 5 Portion provides a great convenience for installation operation, is more advantageous to production assembly.Along the axial direction sequence installation from left to right of dead axle 13 Cored element 4, is attracted disk 2 and shrapnel 1 at coil part 3.It is attracted disk 2 and fan terminal pad 5 is fixedly mounted on by shrapnel 1 Left side outer end face, there are gaps, iron-core element 4 to be fixedly mounted between the iron-core element 4 and actuation disk 2 of embedded wired coil element 3 On dead axle 13.

Embodiment 9：

As shown in figure 14, difference lies in the sides adjacent with belt pulley 8 of fan terminal pad 5 with embodiment 1 for the present embodiment Be connected terminal pad 1 on the right side of i.e..In this way, the left side of terminal pad 1 is connected with fan terminal pad 5.Terminal pad 1 and skin The adjacent side of belt wheel 8 is that right side is attracted disk 7 by the first shrapnel 6 connected first, and be connected iron pan 49 inside terminal pad 1, tool Body, intermediate inner wall face and the iron pan 49 of terminal pad 1 are connected.Be connected aluminium dish 48 on the right side of iron pan 49.First magnet fixed disc 23 In terminal pad 1.

Further include drive plate 50, drive plate 50 is connected in belt pulley 8 close to the one of fan terminal pad 5 by ring flange 46 Side, in this way, the left end face of ring flange 46 is connected with drive plate 50, right end face is connected with belt pulley 8.First magnet fixed disc 23 are attracted disk 16 on a side end face of drive plate 50 by the second shrapnel 17 connected second.Preferably, drive plate 50 is close First side end face for being attracted disk 7 is equipped with several annular magnetic conductive grooves one 501 coaxial with dead axle 13, several annular magnetic conductions Slot 1 is arranged from inside to outside along the radial direction of drive plate 50.

Eddy current permanent-magnet flexible drive device 200 includes：

The permanent magnet A20 being arranged between drive plate 50 and terminal pad 1 and magnetic conduction soft board A19, drive plate 50 is close to wind The side of fan terminal pad 5 is fixed with heat dissipation plate 18, and magnetic conduction soft board A19 is embedded in heat dissipation plate 18, and terminal pad fills on one 47 right side If permanent magnet A20, permanent magnet A20 is opposite with the magnetic conduction positions soft board A19 and gap is arranged, permanent magnet A20, magnetic conduction soft board A19 It sets interchangeable；

The permanent magnet B25 being arranged between aluminium dish 48 and the first magnet fixed disc 23 and magnetic conduction soft board B24, permanent magnet B25 It is installed in aluminium dish 48, magnetic conduction soft board B24 is embedded in the first magnet fixed disc 23, permanent magnet B25, the positions magnetic conduction soft board B24 phase Pair and gap arrange, permanent magnet B25, the positions magnetic conduction soft board B24 are interchangeable,

Iron core member 300 is connected with dead axle 13, including is embedded with the iron core 1 of coil 1, and is embedded with coil 2 12 Iron core 2 11, iron core 1, iron core 2 11 are in the radially coaxially arranged side by side from outside to inside of dead axle 13, iron core one 9 and first It is attracted between disk 7 there are gap and can be attracted with the first actuation disk 7, there are gaps between the actuation disk 16 of iron core 2 11 and second And disk 16 can be attracted with second and be attracted.

In addition, in the present embodiment, the axial recessing 131 of dead axle 13, iron-core element 4, iron core 1, leading in iron core 2 11 Line is exported by groove 131.

In order to meet large torque design requirement, the volume for increasing 100 coil component 3 of fast electromagnetic clutch device is needed, Therefore increase terminal pad 1, avoid that 5 own vol of fan fixed disk is excessive, axial dimension is long.Meanwhile other embodiment In terminal pad 2 34 and fan terminal pad 5 when being an integral structure processing it is inconvenient, and by increase terminal pad 1 also make from Clutch is easy to process and assembles.In addition, the dead axle 13 of objective vehicle clutch need to be mounted on holder 28, in order to avoid the first magnet The axial upper length of fixed disk 23 is long, and so that clutch is spatially arranged, more reasonable, structure is compacter, convenient for assembly, together When meet the needs of flexible drive, embodiment adds iron pan 49, aluminium dish 48, aluminium dish 48 is for installing permanent magnet B25, iron pan 49 are attracted with permanent magnet B25, to fixing permanent magnet B25, while shortening magnetic circuit.In addition, the belt pulley 8 in other embodiment It is an integral structure, the present embodiment middle belt pulley 8 then increases drive plate 50 and ring flange 47, and such clutch is mainly visitor Electromagnetic cluth for vehicle can greatly meet car cooling fan and the larger structural requirement of belt pulley axial distance.To sum up, The clutch of other embodiment is more suitable for engineering machinery and truck, and the clutch of the present embodiment is then more applicable for car.

As shown in figure 16, the control device of safety type four-speed electromagnetic fan clutch of the present invention, including temperature sensing are used for Device, speed probe, pressure sensor, electronic control module, Intelligent oil-saving control module and electromagnetic fan clutch, above-mentioned composition portion It can be individual module to divide, and can also be implanted into the ECU of engine.ECUElectronic Control Unit electronic controls Unit, also known as " car running computer ", " vehicle-mounted computer " etc. are then automobile specified microcomputerized controller from purposes, it and it is common Computer is the same, by microprocessor CPU, memory ROM, RAM, input/output interface I/O, modulus converter A/D and shaping, The large scale integrated circuits such as driving composition.

Temperature sensor for monitoring engine water temperature, charge air cooler temperature, transmission oil temperature, hydraulic fluid temperature isothermal in real time Control parameter is spent, and above-mentioned each temperature information t is sent to Intelligent oil-saving control module；

Pressure sensor is used for monitoring pressure in real time control parameter, i.e. compressor of air conditioner pressure p, and the pressure information is sent out It is sent to Intelligent oil-saving control module；

Speed probe is incited somebody to action for monitoring rotating speed control parameter, i.e. compressor of air conditioner rotating speed v, engine speed V in real time The rotary speed information is sent to Intelligent oil-saving control module；

Electronic control module remains unchanged duration T for recording engine water temperature, and the temporal information is sent to intelligence It can fuel-saving control module；

Intelligent oil-saving control module one end is connect with temperature sensor, speed probe, pressure sensor, electronic control module, The other end is connect with safety type four-speed electromagnetic fan clutch, for receiving temperature sensor, speed probe, pressure sensor The signal that is sent with electronic control module is simultaneously judged, and sends break-make electric signal to a fast electromagnetic clutch device according to judging result 100, iron core member 300 is to control the operation range of clutch.

In conjunction with shown in Figure 17, below to utilizing above-mentioned control device to safety type four-speed of the present invention by taking n speed clutch as an example The method that electromagnetic fan clutch is controlled illustrates, wherein and n is the operation range series of clutch, i.e. number of speeds, And n is integer more than 1, n speed clutch, which refers to, has 1,2,3 ... the clutch of n rotating speed.

N speed clutch control methods, include the following steps：

Each corresponding (n-1) grade of temperature control parameter is attracted temperature K₁, K₂, K₃……K_(n-1)(n-1) grade disconnects temperature Spend k₁, k₂, k₃……k_(n-1), wherein k₁<K₁<k₂<K₂<k₃<K₃……<k_(n-1)<K_(n-1), unit DEG C；

The corresponding n grades of rotating speed of compressor of air conditioner, v₁, v₂, v₃……v_n, unit r/min, wherein v₁<v₂<v₃……<v_n。

The corresponding n grades of rotating speed of engine, V₁, V₂, V₃……V_n, unit r/min, wherein V₁<V₂<V₃……<V_n；

Compressor of air conditioner pressure value P, unit Mpa；

Engine water temperature remains unchanged duration T ', unit min；

3. by step 1. in compressor of air conditioner pressure p and step 2. in setting value compressor of air conditioner pressure value P carry out Compare, when p > P, Intelligent oil-saving control module controls electromagnetic fan clutch full-speed operation.

4. step 3. in, when p < P, by step 1. in other monitor values and step 2. in setting value be compared, Intelligent oil-saving control module is according to comparison result and combines the real-time tachometer value V situations control coil element 3 of engine, coil one 10, coil 2 12, the power on/off of coil (n-2), and then the operation range of clutch is controlled, i.e. one speed of operation range, two speed, three Speed ... the rotating speeds such as n speed, wherein m are integer variable, and 1≤m < n：

(2) the temperature value t that any temperature sensor transmits is increased to its corresponding actuation temperature K_mOr compressor of air conditioner rotating speed V is increased to v_(m+1)When value, Intelligent oil-saving control module is in (0~V according to the real-time tachometer value V of engine₁)、(V₁~V₂)、(V₂ ~V₃)、……(V_n-1~V_n) different range come intelligent control coil part 3, coil 1, coil 2 12, coil (n-2) Power on/off, and then the operation range of electromagnetic fan clutch is controlled, so that clutch is cut between n speed in a speed, two speed, three speed ... It changes；

(3) the temperature value t that any temperature sensor transmits cools to its corresponding break-off signal k_mOr compressor of air conditioner turns Fast v is reduced to v_mWhen value, Intelligent oil-saving control module is in (0~V according to the real-time tachometer value V of engine₁)、(V₁~V₂)、(V₂~ V₃)、……(V_n-1~V_n) different range come intelligent control coil part 3, coil 1, coil 2 12, coil (n-2) it is logical Power-off, and then the operation range of electromagnetic fan clutch is controlled, so that clutch is switched between n speed in a speed, two speed, three speed ...；

(4) when the duration T that engine water temperature remains unchanged is equal to preset time T ' (T ' can be 10~30min)：

The rotating speed of electromagnetic fan clutch >=bis- are fast, then Intelligent oil-saving control module control electromagnetic fan clutch rotating speed drop Low level-one；

The rotating speed of electromagnetic fan clutch is a speed, then Intelligent oil-saving control module control electromagnetic fan clutch rotating speed is protected It holds constant.

As it can be seen that the control principle of above-mentioned n speed clutch is：

Intelligent oil-saving control module receives the signal that temperature sensor, pressure sensor, speed probe transmit, and judges each Whether the temperature value or compressor of air conditioner rotating speed of control parameter reach preset value, if reaching preset value, judge engine speed Range, and be sent to the signal of electromagnetic fan clutch coil break-make, control electromagnetic fan clutch rotating speed.Specifically, if The speed level that the actuation temperature or compressor of air conditioner that the temperature t that temperature sensor detects reaches monitor in real time is low, and starts The range of speeds rank that machine rotating speed reaches is low, then electromagnetic clutch full-speed operation；If the range of speeds rank that engine reaches is high, The then low operation range operating of electromagnetic clutch.If actuation temperature level or air-conditioning that the temperature t that temperature sensor detects reaches The rotating speed that compressor monitors in real time is located at intermediate level, and the range of speeds rank that engine speed reaches is low, then electromagnetic clutch Device full-speed operation；If the range of speeds rank that engine reaches is high, the medium operation range operating of electromagnetic clutch.If temperature passes The speed level that the actuation temperature or compressor of air conditioner that the temperature t that sensor detects reaches monitor in real time is high, and engine speed The range of speeds rank reached is low, then electromagnetic clutch full-speed operation；If the range of speeds rank that engine reaches is high, electromagnetism High operation range operating in clutch.

Above-mentioned control device and control method are monitored parameters by sensor and believe the parameter monitored Breath passes to Intelligent oil-saving control module, if compressor of air conditioner pressure is greater than the set value, electromagnetic fan clutch full-speed operation. When any temperature control parameter or compressor of air conditioner rotating speed meet setting value, then electromagnetism wind is controlled according to the real-time rotating speed of engine Fan clutch operation range.If the engine water temperature retention time, T was constant, electromagnetic fan clutch rotating speed reduces level-one automatically. The control device and control method intelligently adjust the operation range of electromagnetic fan clutch according to different operating modes, further improve Energy-saving effect, cooling fan rotation speed variation is steady reliable, reduces to engine and electromagnetic fan clutch impact, reduces cold But fan work noise extends cooling fan and electromagnetic fan clutch service life, and engine is in best work shape State.

As n=4, as shown in Fig. 1, Fig. 6, Fig. 7, Fig. 8, Figure 10, Figure 13, iron core member 300 has 2 coils, therefore, Above-mentioned each figure is four speed clutch.The control device and control principle of four speed clutch are identical as n speed clutch, only phase The setting for closing control parameter requires to do adaptation variation according to different engines and engine producer.

For example, four speed clutch are related to following parameter：

Monitor value：

The temperature value t that each temperature sensor real-time monitors, unit DEG C；

The real-time rotating speed v of compressor of air conditioner and the real-time rotating speed V, unit r/min of engine；

Compressor of air conditioner pressure p, unit Mpa；

Engine water temperature remains unchanged duration T, unit min.

Setting value：

Each corresponding level-one of temperature control parameter is attracted temperature value K₁, two level actuation temperature value K₂, three-level is attracted warm Angle value K₃, level-one power-off temperature value k₁, two level power-off temperature value k₂, three-level power-off temperature value k₃, unit DEG C, wherein k₁<K₁<k ₂ <K₂<k₃<K₃；

4 grades of tachometer value v of compressor of air conditioner₁, v₂, v₃, v₄And 4 grades of tachometer value V of engine₁, V₂, V₃, V₄, unit r/ Min, wherein v₁<v₂<v₃<v₄, V₁<V₂<V₃<V₄；

M is integer variable, and 1≤m < 4；

Compressor of air conditioner pressure value P, unit Mpa；

Engine water temperature remains unchanged duration T ', unit min.

From four-speed clutch rotational speed resolution principle and control method comprising following 10 working conditions, following shape In state, time h is that 1~2s specifically may be set to 2s：

1) when engine start, belt pulley 8 drives heat dissipation plate 18 to rotate together, is not needed since engine self-temperature is low Cooling fan cools down, and coil part 3 is powered to generating electromagnetic attraction and be attracted disk 2 and be attracted, and iron-core element 4 is fixed on dead axle 13, Fast zero rotation speed operation of cooling fan one.

2) when compressor of air conditioner rotating speed v is increased to its corresponding second rotating speed v₂Or the value of any temperature control parameter rises It is attracted temperature value K for its corresponding level-one₁When：

1. engine speed is in 0~V₁In range, then Intelligent oil-saving control module is required according to above-mentioned full speed to clutch Operation range controlled, Intelligent oil-saving control module control coil element 3, coil 2 12 power off, coil 1 be delayed h after Energization, coil 1 generate electromagnetic attraction and are attracted the first actuation disk 7, it is made to be rotated with belt pulley 8, since the first actuation disk 7 is logical It crosses the first shrapnel 6 to be connected with fan terminal pad 5, and connection cooling fan again in fan terminal pad 5, therefore, cooling fan is driven Dynamic to rotate at full speed, i.e., four speed clutch do full-speed operation；

2. engine speed is in V₁~V₂In range, then Intelligent oil-saving control module is required according to above-mentioned three speed to clutch It is controlled, coil part 3 powers off, and is powered after the delay of coil 2 12 h, and coil 2 12 generates electromagnetic attraction and is attracted the second actuation disk 16, so that it is rotated with belt pulley 8, while first magnet fixed disc 23 connected with the second actuation disk 16 being driven to rotate, exists at this time The magnetic conduction soft board B24 that first magnet fixed disc, 23 inner cavity end face is equipped with is connected with several with corresponding 5 end face of fan terminal pad Block permanent magnet B25 generates current vortex magnetic field, drives cooling fan to do three fast high speed double-flexibility operatings, i.e., four speed clutch do three Speed operating.In fact, two speed and three speed can all meet this working condition requirement, so this operating mode may be configured as two speed and may be alternatively provided as three Speed, when being set as two speed, coil 1, coil part 3, coil 2 12 power off, if operating mode is more severe, each temperature Control parameter Wen Sheng is slightly fast, can reach following operating modes 3) quickly；If operating mode is better, two speed operatings can be maintained, are more saved Energy.So being set as two speed when operating mode is good, three speed are set as when operating mode is severe, the case where following two speed is this Reason, it is preferred that emphasis is the operating mode being applicable according to vehicle flexibly selects.

Similarly, if 3. engine speed is in V₂~V₃In range, then Intelligent oil-saving control module is required according to two speed to clutch The coil power on/off of device is controlled, and coil 1, coil part 3, coil 2 12 power off, and the drive of belt pulley 8 is connected with magnetic conduction The heat dissipation plate 18 of soft board A19 rotates, with heat dissipation plate 18 at 6 pieces of permanent magnets being equipped on the corresponding permanent magnetism fixed block in gap 21 Current vortex magnetic field is generated between A20 and magnetic conduction soft board A19, the cooling fan that driving fan terminal pad 5 is connected with is made middling speed flexibility and turned Dynamic, cooling fan does two fast middling speed operatings, i.e. four speed clutch do two speed operatings.Such situation may be by working condition 1) directly Change be in working condition 2) 3., also can be from working condition 2) 2. become 3., so the energized state of each coil needs basis Different situations adjust, it is from any variation of the above-mentioned several situations for causing four speed clutch to be converted to two speed.

Similarly, if 4. engine speed is in V₃~V₄In range, then Intelligent oil-saving control module is according to above-mentioned two speed requirement pair Clutch is controlled, and the fast middling speed operating of cooling fan two, i.e. four speed clutch do two speed operatings.

Below 3)~7 working condition 2) similarly therefore only lists clutch rotational speed situation with above-mentioned), specific coil power on/off It is controlled according to different operating mode speed demands.

3) when compressor of air conditioner rotating speed v is increased to its corresponding third rotating speed v₃Or the value of any temperature control parameter increases K when being attracted temperature value to its corresponding two level₂：

1. if engine speed is in 0~V₁In range, full-speed operation is done in cooling fan full-speed operation, i.e. four speed clutch；

2. if engine speed is in V₁~V₂In range, three speed of cooling fan or full-speed operation, i.e. four speed clutch do three speed Or full-speed operation；

3. if engine speed is in V₂~V₃In range, three speed operating of cooling fan, i.e. four speed clutch do three speed operatings；

4. if engine speed is in V₃~V₄In range, two speed of cooling fan or three speed operatings, i.e. four speed clutch do two speed Or three speed operating.

4) when compressor of air conditioner rotating speed v is increased to its corresponding 4th rotating speed v₄Or the value of any temperature control parameter increases It is attracted temperature value K to its corresponding three-level₃When：

1. if engine speed is in 0~V₁In range, cooling fan full-speed operation；

2. if engine speed is in V₁~V₂In range, cooling fan full-speed operation；

3. if engine speed is in V₃~V₄, the speed of cooling fan three or full-speed operation；

4. if engine speed is in V₃~V₄In range, three speed of cooling fan or full-speed operation.

5) when compressor of air conditioner rotating speed v is reduced to its corresponding third rotating speed v₃Or the value of any temperature control parameter drops to Its corresponding three-level power-off temperature value k₃When：

1. if engine speed is in 0~V₁In range, cooling fan full-speed operation；

2. if engine speed is in V₁~V₂In range, three speed of cooling fan or full-speed operation；

3. if engine speed is in V₂~V₃In range, three speed operating of cooling fan；

4. if engine speed is in V₃~V₄In range, three speed of cooling fan or two fast middling speed operatings.

6) when compressor of air conditioner rotating speed v is reduced to its corresponding second rotating speed v₂Or the value of any temperature control parameter drops to Its corresponding two level power-off temperature value k₂When：

1. if engine speed is in 0~V₁In range, cooling fan full-speed operation；

2. if engine speed is in V₁~V₂In range, two speed of cooling fan or three speed operatings；

3. if engine speed is in V₂~V₃In range, two speed operating of cooling fan；

4. if engine speed is in V₃~V₄In range, the fast middling speed operating of cooling fan two.

7) when compressor of air conditioner rotating speed v is reduced to its corresponding first rotating speed v₁Or the value of any temperature control parameter drops to Its corresponding level-one power-off temperature value k₁When, fast zero rotation speed operation of cooling fan one；

8) 1)~7) in working condition, when engine water temperature retention time T is unchanged：

1. when clutch rotational speed >=bis- speed, Intelligent oil-saving control module, which controls engine speed, reduces level-one；

2. when clutch rotational speed is a speed, engine speed remains unchanged.

9) 1)~8) in working condition, when compressor of air conditioner pressure is more than setup pressure value P, Intelligent oil-saving control module Four speed clutch full-speed operations of control are required according to above-mentioned full speed.

If 10) coil all powers off, clutch can operate under two fast middling speeds.

When the clutch cold start-up of the present invention, cooling fan cooling, element coil are not needed since engine self-temperature is low Part 3 is powered, and generates electromagnetic attraction and is combined with disk 2 is attracted, and then iron-core element 4 is made to be attracted with disk 2 is attracted, due to iron-core element 4 It is fixed on dead axle 13, therefore, is attracted disk 2 and is also fixed, in turn, the fan terminal pad 5, Yi Jifeng connected with disk 2 is attracted Cooling fan in fan terminal pad 5 is fixed together, at this point, cooling fan does fast zero rotation speed operation, realizes real zero Speed.It is required according to above-mentioned 4 rotating speeds, when engine water temperature reaches setting value, Intelligent oil-saving control module control coil element 3 Power-off, electromagnetic attraction disappear, and are attracted disk 2 and iron-core element 4 disconnects, fan terminal pad 5 loses restriction, and stress can rotate, skin Belt wheel 8 drives the heat dissipation plate 18 for being connected with magnetic conduction soft board A19 to rotate, the magnetic conduction soft board A19 and permanent magnet A20 in fan terminal pad 5 Current vortex magnetic field is generated, drives the cooling fan rotation that fan terminal pad 5 is connected with to do flexible drive, at this point, cooling fan does two Fast middling speed operating.Similarly, when it is setting value that water temperature, which continues to increase, the delay of coil 2 12 2s is powered, and is attracted second and is attracted disk 16, First magnet fixed disc 23 connected with the second actuation disk 16 is set to be rotated under the drive of belt pulley 8, at this point, being fixed in the first magnet The magnetic conduction soft board B24 that 23 inner cavity end face of disk is equipped with generates current vortex magnetic field with several pieces of permanent magnet B25 in fan terminal pad 5, Driving cooling fan is switched to three fast high speed double-flexibility driving operatings by two fast middling speed flexible drive operatings.Similarly, work as water temperature When continuing to rise to setting value, coil 1 be powered, generate electromagnetic attraction be attracted first be attracted disk 7, due to first be attracted disk 7 with Fan terminal pad 5 is connected, so, the cooling fan that fan terminal pad 5 is connected with rotates at full speed under the drive of belt pulley 8.

As shown in figure 15, the rotating speed in two fast middling speeds of the cooling fan in above-mentioned four speed clutch has reached the 40% of full speed ~65%, it meets middling speed cooling and requires, rotating speed has reached full speed 70%~90% in three speed, meets the need of Fast Cooling It asks.Existing two kind of three speed clutch cannot achieve zero-turn speed, and a fast maximum of double-flexibility electromagnetic fan clutch only reaches At full speed 25%~40%, two speed have only reached the 50%~70% of full speed, so, a speed of this kind of clutch is equivalent to this hair Two speed of two speed of four bright speed clutch, this kind of clutch then just correspond to three speed of four speed clutch of the invention.

The clutch of the present invention can normally cool down to engine under high speed state, hence it is evident that reduce cooling wind The switching frequency between three speed and full speed is fanned, while reducing operating noise, is reduced to engine connector and electromagnetism wind Fan the impact endurance test shock abrasion of clutch.Moreover, in all power-off or vehicle cannot stop in time or other of above-mentioned each coil Temporarily under the complex situations that Parking permitted, clutch of the invention can be flexible in two fast middling speeds in the case that power free The lower work of driving.

The control parameters of three speed clutch, parameter setting require, setting method it is equal it is fast with n, four-speed is identical, and controlling party Method is also identical with n speed, four speed clutch, therefore does not repeat herein.

Three speed clutch operation principles are identical with four speed clutch, it follows that three speed clutch include following 8 work State：

1) when engine start, fast zero rotation speed operation of clutch one；

1. if engine speed is in 0~V₁In range, three speed clutch full-speed operations；

2. if engine speed is in V₁~V₂In range, three speed clutch, two speed or full-speed operation；

3. if engine speed is in V₂~V₃In range, three speed clutch, two speed operating；

3) when compressor of air conditioner rotating speed v is increased to its corresponding third rotating speed v₃Or the value of any temperature control parameter increases It is attracted temperature value K to its corresponding two level₂When：

2. if engine speed is in V₁~V₂In range, three speed clutch full-speed operations；

3. if engine speed is in V₂~V₃In range, three speed clutch, two speed or full-speed operation；

4) when compressor of air conditioner rotating speed v is reduced to its corresponding second rotating speed v₂Or the value of any temperature control parameter drops to Its corresponding two level power-off temperature value k₂When：

5) when compressor of air conditioner rotating speed v is reduced to its corresponding first rotating speed v₁Or the value of any temperature control parameter drops to Its corresponding level-one power-off temperature value k₁When, fast zero rotation speed operation of three speed clutch one；

6) 1) in~5), when the engine water temperature retention time, T was constant：

1. clutch rotational speed >=bis- are fast, engine speed reduces level-one；

2. clutch rotational speed is a speed, engine speed remains unchanged.

7) 1)~6) in, if compressor of air conditioner pressure value>When the pressure value P of setting, three speed clutch full-speed operations.

If 8) coil all powers off, the safe handling under two fast flexible drives of three speed clutch.

As shown in the above, clutch of the invention and its control device, control method are used drops with regard to high principle, active The energy saving selection of shelves, intelligent operating mode principle control the rotating speed of clutch.It is described that high principle is met the requirements when any control parameter When, the power on/off of clutch coil is controlled according to engine speed difference.The energy saving principle even engine water that actively downshifts Temperature continues T time and does not change, then intelligent control downshifts to the rotating speed of clutch, to reduce power consumption.The intelligence operating mode is former It is then that clutch can the working speed that is optimal of intelligent control and most energy-efficient working condition.

It based on this, is operated for a fast zero-speed when clutch of the invention realizes static cold start-up, two speed are middling speed safety Formula flexible drive, three speed are the more flexible drives of high speed, and four-speed is to drive at full speed, reduces power loss when cold start-up, subtracts Lack middle and high fast speed-changing slippage and switching times, while also achieving non-transformer safe operation.In addition, the present invention from Clutch realizes the compactedness of clutch axial dimension by the particular topology to each component in clutch inside, has reached complicated knot The purpose of structure miniaturization, greatly facilitates installing and using for user.

Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.

Claims

1. safety type four-speed electromagnetic fan clutch, including dead axle (13), dead axle are rotatably connected to coaxial wind on (13) Fan terminal pad (5), belt pulley (8), the fan terminal pad (5) and belt pulley (8) mutually from side end face installing connector, with The adjacent side end face of belt pulley (8) is attracted disk (7) by the first shrapnel (6) connected first, and the belt pulley (8) is inhaled with first There are gaps between conjunction disk (7), it is characterised in that：

The fast electromagnetic clutch device of one coaxially and be fixed on dead axle (13) is installed on the fan terminal pad (5) (100), described one fast electromagnetic clutch device (100) can limit fan terminal pad (5) rotation,

Fan terminal pad (5) inner cavity is also installed with coaxial the first magnet fixed disc (23), and first magnet is solid Price fixing (23) is adjacent with belt pulley (8) and is rotatablely connected with dead axle (13), and the diameter of first magnet fixed disc (23) is less than The diameter of the fan terminal pad (5), first magnet fixed disc (23) is on a side end face of belt pulley (8) by the Two shrapnels (17) connected second are attracted disk (16),

The fan terminal pad (5) is equipped with observation panel (51), reinforcing rib (52) radially,

Between the fan terminal pad (5) and belt pulley (8), between fan terminal pad (5) and the first magnet fixed disc (23) It is installed with eddy current permanent-magnet flexible drive device (200), the eddy current permanent-magnet flexible drive device (200) can generate electric whirlpool Field drives fan terminal pad (5) is flowed to rotate,

The coaxial iron core member (300) being fixed on dead axle (13), the iron core member are inlaid in the belt pulley (8) (300) there is gap between the first actuation disk (7), the second actuation disk (16) and disk (7), the can be attracted with first respectively Two, which are attracted disk (16), is attracted；

Described one fast electromagnetic clutch device (100) is located at the cavity that fan terminal pad (5) is surrounded with the first magnet fixed disc (23) In interior or the separate belt pulley (8) outside fan terminal pad (5) side outside wall surface, described one fast electromagnetic clutch device (100) include along the axial installation successively of dead axle (13) and the shrapnel (1) coaxial with dead axle (13), actuation disk (2), coil part (3) and iron-core element (4), when described one fast electromagnetic clutch device (100) is located at fan terminal pad (5) and the first magnet fixed disc (23) when in the cavity surrounded, the actuation disk (2) is fixed on by shrapnel (1) on the internal face of fan terminal pad (5), and institute is worked as When stating a fast electromagnetic clutch device (100) and being located in the side outside wall surface of the external separate belt pulley (8) of fan terminal pad (5), institute It states actuation disk (2) to be fixed in the outside wall surface of fan terminal pad (5) by shrapnel (1), the iron core member of embedded wired coil element (3) Part (4) is fixed on dead axle (13), there are gap and can be pulled together between the actuation disk (2) and iron-core element (4)；

The eddy current permanent-magnet flexible drive device (200) includes：

The permanent magnet A (20) being arranged between belt pulley (8) and fan terminal pad (5) and magnetic conduction soft board A (19), the belt pulley (8) heat dissipation plate (18), the embedded heat dissipation plate of the magnetic conduction soft board A (19) are fixed with close to the side of fan terminal pad (5) (18) in, permanent magnet A (20), the permanent magnet A (20) and magnetic conduction soft board A (19) position are installed on the fan terminal pad (5) Opposite and gap arranges that the permanent magnet A (20), magnetic conduction soft board A (19) position are interchangeable；

The permanent magnet B (25) being arranged between fan terminal pad (5) and the first magnet fixed disc (23) and magnetic conduction soft board B (24), The permanent magnet B (25) is installed in fan terminal pad (5) along its axial internal face, and the magnetic conduction soft board B (24) is embedded in institute State in the first magnet fixed disc (23), the permanent magnet B (25), magnetic conduction soft board B (24) position is opposite and gap is arranged, it is described forever Magnet B (25), magnetic conduction soft board B (24) position are interchangeable,

The iron core member (300) includes being embedded with the iron core one (9) of coil one (10), and be embedded with the iron core of coil two (12) Two (11), the iron core one (9), iron core two (11) are in the radially coaxially arranged side by side from outside to inside of dead axle (13), the iron Core one (9) and first is attracted between disk (7) there are gap and can be attracted disk (7) with first and be attracted, the iron core two (11) with Second is attracted between disk (16) there are gap and can be attracted disk (16) actuation with second.

2. safety type four-speed electromagnetic fan clutch according to claim 1, it is characterised in that：When described one fast electromagnetism from It attaches together when setting (100) and being located in the cavity that fan terminal pad (5) and the first magnet fixed disc (23) surround, further includes terminal pad one (47), the fan terminal pad (5) and the connected terminal pad one (47) in the adjacent side of belt pulley (8), the terminal pad one (47) Adjacent side is attracted disk (7) by the first shrapnel (6) connected first with belt pulley (8), and the terminal pad one (47) is internal solid Even iron pan (49), iron pan (49) side are connected aluminium dish (48), and first magnet fixed disc (23) is located at terminal pad one (47) in,

Further include drive plate (50), the drive plate (50) is connected in belt pulley (8) by ring flange (46) and is connected close to fan The side of disk (5), first magnet fixed disc (23) pass through the second shrapnel (17) on a side end face of drive plate (50) Be connected the second actuation disk (16),

The eddy current permanent-magnet flexible drive device (200) includes：

The permanent magnet A (20) being arranged between drive plate (50) and terminal pad one (47) and magnetic conduction soft board A (19), the drive plate (50) heat dissipation plate (18), the embedded heat dissipation plate of the magnetic conduction soft board A (19) are fixed with close to the side of fan terminal pad (5) (18) in, permanent magnet A (20), the permanent magnet A (20) and magnetic conduction soft board A (19) position phase are installed in the terminal pad one (47) Pair and gap arrange, the permanent magnet A (20), magnetic conduction soft board A (19) position are interchangeable；

The permanent magnet B (25) that is arranged between aluminium dish (48) and the first magnet fixed disc (23) and magnetic conduction soft board B (24), it is described forever Magnet B (25) is installed in aluminium dish (48), described in embedded first magnet fixed disc (23) of the magnetic conduction soft board B (24) Permanent magnet B (25), magnetic conduction soft board B (24) position is opposite and gap is arranged, the permanent magnet B (25), magnetic conduction soft board B (24) position It is interchangeable,

The iron core member (300) is connected with dead axle (13), including is embedded with the iron core one (9) of coil one (10), and is embedded with The iron core two (11) of coil two (12), the iron core one (9), iron core two (11) dead axle (13) radially from outside to inside side by side Coaxially arranged, the iron core one (9) and first is attracted between disk (7) there are gap and can be attracted disk (7) actuation, institute with first Iron core two (11) and second is stated to be attracted between disk (16) there are gap and disk (16) actuation can be attracted with second.

3. safety type four-speed electromagnetic fan clutch according to claim 2, it is characterised in that：The dead axle (13) is axial Recessing (131), the iron-core element (4), iron core one (9), the conducting wire in iron core two (11) pass through groove (131) and export.

4. safety type four-speed electromagnetic fan clutch according to claim 3, it is characterised in that：The drive plate (50) is leaned on Nearly first side end face for being attracted disk (7) is equipped with several annular magnetic conductive grooves one (501) coaxial with dead axle (13), several The annular magnetic conductive groove one (501) is arranged from inside to outside along the radial direction of drive plate (50).

5. safety type four-speed electromagnetic fan clutch according to claim 4, it is characterised in that：Described one fast electromagnetic clutch Device (100) further includes magnetic conductive disk (29), and the magnetic conductive disk (29) is fixedly mounted on dead axle (13), on dead axle (13) is axial according to Secondary sequence is equipped with shrapnel (1), is attracted disk (2), magnetic conductive disk (29), coil part (3), iron-core element (4), the magnetic conductive disk (29) there are gaps between actuation disk (2).

6. safety type four-speed electromagnetic fan clutch according to claim 4, it is characterised in that：The eddy current permanent-magnet is soft Property driving device (200) further include that permanent magnet C between fan terminal pad (5) and the first magnet fixed disc (23) is set (30), (31) magnetic conduction soft board C, the permanent magnet C (30) is installed on the internal face of fan terminal pad (5) radially, described In embedded first magnet fixed discs (23) of magnetic conduction soft board C (31), the permanent magnet C (30), magnetic conduction soft board C (31) are in dead axle (13) Radially position is opposite and gap arranges that the permanent magnet C (30), magnetic conduction soft board C (31) position are interchangeable.

7. safety type four-speed electromagnetic fan clutch according to claim 6, it is characterised in that：Further include being fixed on holder (28) shell (33) on, the dead axle (13), iron core member (300) are each attached on shell (33), and the connector is to connect Disk two (34) is connect, the iron core one (9), iron core two (11) are integrally molded so as iron core four (32), and the iron core four (32) is in dead axle (13) inside and outside two inner cavities coaxial with dead axle (13) are shown radially and, in the embedded inner inner cavity of coil four (321), line It encloses in the embedded outer inner cavity in five (322), the iron core four (32) and first is attracted between disk (7), the second actuation disk (16) There are gap and can be pulled together.

8. safety type four-speed electromagnetic fan clutch according to claim 7, it is characterised in that：The fan fixed disk (5) inner cavity is installed with coaxial fixation disk (35), and the fixed disk (35) is located at the first magnet fixed disc (23) and belt Between taking turns (8), the radial direction along the fan fixed disk (5), outer circumference surface and the fan fixed disk (5) of the fixed disk (35) Internal face is connected, and the eddy current permanent-magnet flexible drive device (200) further includes the permanent magnet E being installed on fixed disk (35) (37), the permanent magnet E (37) is opposite with magnetic conduction soft board (31) positions C, and the permanent magnet E (37) is replaced by magnetic conduction soft board D (36)。

9. the safety type four-speed electromagnetic fan clutch according to claim 1,6,7, any one of 8, it is characterised in that：Institute The axial recessing (131) of dead axle (13) is stated, radially convinces string holes (132) by patient analysis, the conducting wire in the iron-core element (4) passes through groove (131), wire guide (132) exports.

10. safety type four-speed electromagnetic fan clutch according to claim 9, it is characterised in that：The one fast electromagnetism from It further includes magnetic conductive disk (29) to attach together and set (100), and the magnetic conductive disk (29) is fixedly mounted on dead axle (13), in dead axle (13) axial direction Shrapnel (1) is sequentially installed successively, is attracted disk (2), magnetic conductive disk (29), coil part (3), iron-core element (4), the magnetic conductive disk (29) there are gaps between actuation disk (2).

11. safety type four-speed electromagnetic fan clutch according to claim 10, it is characterised in that：The belt pulley (8) The side end face that disk (7) is attracted close to first is equipped with several annular magnetic conductive grooves two (81) coaxial with dead axle (13), several A annular magnetic conductive groove two (81) is arranged from inside to outside along the radial direction of belt pulley (8).

12. the safety type four-speed electromagnetic fan clutch according to claim 5 or 11, it is characterised in that：The fan connects It connects disk (5) connected locking plate (22), locking plate (22) on the end face of belt pulley (8) side and passes through the first shrapnel (6) It is connected and first is attracted disk (7), several are connected on the locking plate (22) along the equally distributed fixed block of its circumferencial direction (21), Several described permanent magnet A (20) are fixedly mounted on fixed block (21).

13. the control device of safety type four-speed electromagnetic fan clutch according to claim 1 or 2, it is characterised in that：Packet It includes：

Temperature sensor, speed probe, pressure sensor, electronic control module, Intelligent oil-saving control module and safety type four-speed electricity Magnetic fan clutch,

The temperature sensor is used to monitor engine water temperature, charge air cooler temperature, transmission oil temperature, hydraulic fluid temperature in real time, and Above-mentioned each temperature information t is sent to Intelligent oil-saving control module；

The pressure sensor is used for monitoring pressure in real time control parameter, i.e. compressor of air conditioner pressure p, and the pressure information is sent out It is sent to Intelligent oil-saving control module；

The speed probe is incited somebody to action for monitoring rotating speed control parameter, i.e. compressor of air conditioner rotating speed v, engine speed V in real time The rotary speed information is sent to Intelligent oil-saving control module；

The electronic control module remains unchanged duration T for recording engine water temperature, and the temporal information is sent to intelligence It can fuel-saving control module；

Intelligent oil-saving control module one end is connect with temperature sensor, speed probe, pressure sensor, electronic control module, The other end is connect with safety type four-speed electromagnetic fan clutch, for receiving temperature sensor, speed probe, pressure sensor The signal that is sent with electronic control module is simultaneously judged, and sends break-make electric signal to described one fast electromagnetic clutch according to judging result Device (100), iron core member (300) are to control the operation range of safety type four-speed electromagnetic fan clutch.

14. the controlling party controlled safety type four-speed electromagnetic fan clutch using the control device described in claim 13 Method, which is characterized in that include the following steps：

Each corresponding level-one of temperature control parameter is attracted temperature value K₁, two level actuation temperature value K₂, three-level actuation temperature value K₃, level-one power-off temperature value k₁, two level power-off temperature value k₂, three-level power-off temperature value k₃, unit DEG C, wherein k₁<K₁<k₂<K₂<k₃ <K₃；

Compressor of air conditioner pressure value P, unit Mpa；

Engine water temperature remains unchanged duration T ', unit min；

3. by step 1. in compressor of air conditioner pressure p and step 2. in setting value compressor of air conditioner pressure value P be compared, When p > P, Intelligent oil-saving control module control coil element (3) is powered off with coil two (12), and coil one (10) is powered；

4. step 3. in, when p < P, by step 1. in other monitor values and step 2. in setting value be compared, intelligence Fuel-saving control module is according to comparison result and combines the real-time tachometer value V situations control coil element (3) of engine, coil one (10), the power on/off of coil two (12), wherein m are integer variable, and 1≤m < 4：

(2) the temperature value t that any temperature sensor transmits is increased to its corresponding actuation temperature K_mOr compressor of air conditioner rotating speed v is increased To v_(m+1)When value, Intelligent oil-saving control module is in (0~V according to the real-time tachometer value V of engine₁)、(V₁~V₂)、(V₂~V₃)、 (V₃~V₄) different range carry out the power on/off of intelligent control coil part (3), coil one (10), coil two (12)；

(3) the temperature value t that any temperature sensor transmits cools to its corresponding break-off signal k_mOr compressor of air conditioner rotating speed v drops As low as v_mWhen value, Intelligent oil-saving control module is in (0~V according to the real-time tachometer value V of engine₁)、(V₁~V₂)、(V₂~V₃)、 (V₃~V₄) different range carry out the power on/off of intelligent control coil part (3), coil one (10), coil two (12)；

When the rotating speed of safety type four-speed electromagnetic fan clutch >=bis- speed, Intelligent oil-saving control module controls safety type four-speed electricity Magnetic wind, which fans clutch rotational speed, reduces level-one；

When the rotating speed of safety type four-speed electromagnetic fan clutch is a speed, Intelligent oil-saving control module controls safety type four-speed electricity Magnetic wind fan clutch rotational speed remains unchanged.

15. control method according to claim 14, it is characterised in that：

The step 4. in：

(i) it is attracted temperature value K when the value of any temperature control parameter rises to its corresponding level-one₁Or compressor of air conditioner rotating speed v liters Height arrives its corresponding second rotating speed v₂When：

I engine speed is in 0~V₁In range, Intelligent oil-saving control module control coil element (3), coil two (12) power-off, line It is powered after one (10) of circle delay h；

Ii engine speed is in V₁~V₂In range, Intelligent oil-saving control module control coil element (3) power-off, coil two (12) It is powered after delay h or coil part (3), coil one (10), coil two (12) powers off；

Iii engine speed is in V₂~V₃In range, Intelligent oil-saving control module control coil element (3), coil one (10), line Two (12) of circle power off；

Iv engine speed is in V₃~V₄In range, Intelligent oil-saving control module control coil element (3), coil one (10), coil Two (12) power off；

(ii) when compressor of air conditioner rotating speed v is increased to its corresponding third rotating speed v₃Or the value of any temperature control parameter is increased to it Corresponding two level is attracted temperature value K₂When：

I engine speed is in 0~V₁In range, Intelligent oil-saving control module control coil two (12), coil part (3) power-off, line It is powered after one (10) of circle delay h；

Ii engine speed is in V₁~V₂In range, Intelligent oil-saving control module control coil element (3), coil one (10) power-off, It is powered after coil two (12) delay h or coil two (12), coil part (3) powers off, be powered after coil one (10) delay h；

Iii engine speed is in V₂~V₃In range, Intelligent oil-saving control module control coil element (3) power-off, coil two (12) It is powered after delay h；

Iv engine speed is in V₃~V₄In range, Intelligent oil-saving control module control coil element (3), coil one (10), coil It is powered after two (12) power off or coil part (3), coil one (10) power-off, coil two (12) delay h；

(iii) when compressor of air conditioner rotating speed v is increased to its corresponding 4th rotating speed v₄Or the value of any temperature control parameter is increased to it Corresponding three-level is attracted temperature value K₃When：

Ii engine speed is in V₁~V₂In range, Intelligent oil-saving control module control coil two (12), coil part (3) power-off, It is powered after coil one (10) delay h；

Iii engine speed is in V₂~V₃, Intelligent oil-saving control module control coil element (3), coil one (10) power-off, coil It is powered after two (12) delay h or coil two (12), coil part (3) powers off, be powered after coil one (10) delay h；

Iv engine speed is in V₃~V₄In range, Intelligent oil-saving control module control coil element (3), coil one (10) power-off, It is powered after coil two (12) delay h or coil two (12), coil part (3) powers off, be powered after coil one (10) delay h；

(iv) when compressor of air conditioner rotating speed v is reduced to its corresponding third rotating speed v₃Or to drop to its right for the value of any temperature control parameter The three-level power-off temperature value k answered₃When：

Iii engine speed is in V₂~V₃In range, Intelligent oil-saving control module control coil element (3), coil one (10) are disconnected It is powered after electricity, coil two (12) delay h；

Iv engine speed is in V₃~V₄In range, Intelligent oil-saving control module control coil element (3), coil one (10), coil Two (12) power off or coil part (3), coil one (10) power-off, are powered after coil two (12) delay h；

(v) when compressor of air conditioner rotating speed v is reduced to its corresponding second rotating speed v₂Or to drop to its right for the value of any temperature control parameter The two level power-off temperature value k answered₂When：

Ii engine speed is in V₁~V₂In range, Intelligent oil-saving control module control coil element (3), coil one (10) power-off, It is powered after coil two (12) delay h or coil part (3), coil one (10), coil two (12) powers off；

(vi) when compressor of air conditioner rotating speed v is reduced to its corresponding first rotating speed v₁Or to drop to its right for the value of any temperature control parameter The level-one power-off temperature value k answered₁When, Intelligent oil-saving control module control coil one (10), coil two (12) power off, element coil It is powered after part (3) delay h.

16. control method according to claim 15, it is characterised in that：The preset time T ' is 10~30min, and h is 2s。