CN101769193B - Electronic silicone oil fan clutch - Google Patents
Electronic silicone oil fan clutch Download PDFInfo
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- CN101769193B CN101769193B CN2008101637990A CN200810163799A CN101769193B CN 101769193 B CN101769193 B CN 101769193B CN 2008101637990 A CN2008101637990 A CN 2008101637990A CN 200810163799 A CN200810163799 A CN 200810163799A CN 101769193 B CN101769193 B CN 101769193B
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- driving shaft
- push rod
- silicone oil
- fan clutch
- valve
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- Mechanical Operated Clutches (AREA)
Abstract
An electronic silicone oil fan clutch comprises a shell, a front cover, an oil storage cover, a driving shaft plugged in the shell and a driving board arranged on the driving shaft, and is characterized by also comprising a valve ring, a mandril, a resetting member and an electromagnetic valve; the valve ring is fixed on the tail of the mandril, axially penetrates through the hollow driving shaft and moves back and forth; the electromagnetic valve is connected with an engine electronic control unit by a wire bundle, generates magnetic field after powered up to suck the mandril to move forwards to realize control on openness degree of the oil outlet hole by the valve ring. Compared with the prior art, the invention has the advantages that various information is collected by the electronic control unit through preset parameters, according to the magnitude of current transmitted by the electronic control unit, the clutch generates a magnetic field corresponding to the magnitude, so that the mandril drives the valve block to move to realize connection and disconnection of silicone oil between an oil storage cavity and a meshing cavity, thus being capable of notifying in advance, and having the advantages of fast response, little influence by external, diverse control factors and high control preciseness.
Description
Technical field
The present invention relates to a kind of engine-cooling system assembly, relate in particular to a kind of electronic silicone oil fan clutch.
Background technique
Energy saving is a long-range policy of national development economy.Show according to relevant research data, the energy consumption of automobile 5～10% is on the fan cooled of motor, and in fact the automobile work most of the time is not need fan cooled, generally had only for 5～10% times just needed fan cooled, so the fan automatic clutch technology of automobile is the important guardian technique of vehicle energy saving, there are a lot of technician that the clutch of fan automatic clutch has been carried out technological improvement for this reason.Their are general, and what adopt is bimetal temperature sensibility structure, and the temperature of the air that blows from radiator by the impression of bimetal temperature sensibility produces the switch that thermal distortion comes control valve
Existing automobile is from silicon oil filled fan clutch, its working principle is by temperature sensibility the hot load state of motor to be converted into to rotatablely move, when the motor overburdening, drive the valve block rotation with valve open, and then silicone oil is constantly circulated between working room and accumulator, carry out high speed rotating thereby drive fan, make motor in time obtain cooling; When engine load was low, the silicone oil of accumulator no longer flowed to the working room, and drive fan and carry out low speed rotation this moment, played the effect of balanced engine load.
Domestic and international employed silicon oil filled fan clutch mostly is to have temperature feeling ring at present, and temperature feeling ring is a kind of core component on the silicon oil filled fan clutch product, and their general temperature feeling rings that adopts are the circle types, are a kind of spiral line type bimetallic strip structures.
Referenced patent number is ZL93201277.9 China utility model patent " taking back the drive fan viscous of oil groove and curved radiating fin " (notice of authorization number: CN2158922Y), adopt the linear bimetallic strip structure of a kind of spiral as temperature sensibility in this patent, the temperature sensibility of this structure causes extraneous collision easily and causes linear the change, thereby influences the integrity energy charge working life of clutch.
Chinese for this reason utility model patent: ZL01252855.2 and ZL02216970.9 all disclose a kind of drive fan viscous that improves structure, by the improvement to the temperature sensibility structure, thereby reduce the influence that extraneous collision brings.
Yet above-mentioned clutch all adopts temperature sensibility to control valve block and opens and closes, so have the following disadvantages: the first, speed of response is slow, and bimetal temperature sensibility thermal distortion speed is slow; The second, control accuracy is low, and there is individual difference in the temperature sensibility quality, and thermal distortion is not desirable linearity; The 3rd, be subject to environmental disturbances, the temperature of the air that blows from radiator is subjected to ambient temperature, radiator to the temperature sensibility distance affects; The 4th, layout restrictions, in order to experience radiator temperature, temp-sensitive apparatus has certain limitation to the radiator distance; The 5th, operating temperature range is limited, and the temperature sensibility heat distortion amount is limited; The 6th, controlling element is single, can only regulate control by radiator temperature; The 7th, passive type control can only change the back action at radiator temperature; The 8th, can only realize open loop control; The 9th, control logic that can only realize fixing, simple relies on product structure to realize, and structure be fix, can not be too complicated.
Also have the automatically controlled silicon oil filled fan clutch of a kind of external control type, fully by engine electronic control unit collecting temperature signal and export electrical signal control, clutch itself is only carried out and is moved.Open with reference to the Chinese invention patent application: CN1807917A, a kind of " controlling method of external control type fan clutch " disclosed, this clutch can only be applicable to the above motor of Europe III, many motors can not use.
Summary of the invention
Technical problem to be solved by this invention is that a kind of precision height, the fast electronic silicone oil fan clutch of response are provided at the above-mentioned state of the art.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: a kind of electronic silicone oil fan clutch, comprise housing, protecgulum, oil storage cover, be rotatably installed on the driving shaft in the housing and be located at active plate on the driving shaft, aforementioned active plate forms the engagement chamber with one of aforementioned protecgulum and housing at least, aforesaid protecgulum is characterized in that also comprising by aforesaid oil storage cover and the active plate formation shoe cream room that is tightly connected
The valve circle is used to control the oil outlet aperture size of shoe cream room;
Push rod, afterbody are fixed with aforesaid valve circle, axially are arranged on the driving shaft of hollow and can move around;
Return unit, the trend that forces aforementioned push rod to keep backward directions to move all the time; And
Solenoid valve is located at described driving shaft front end, links to each other with engine electronic control unit by a wire harness, and the energising rear electromagnetic valve produces magnetic field, attracts push rod to move forward, thereby realizes making the control of valve circle to oil outlet aperture size.
Further, described push rod head has the stop part that a restriction push rod continuation is moved backward.
Further, described oil outlet is located on the described active plate.Compact to design, be convenient to the arrangement of inner space.
As preferably, the internal diameter of the front end hollow portion of described driving shaft is greater than the internal diameter of rear end hollow portion; The stop part of described push rod is positioned at the front end hollow portion, and other parts then are located at the rear end hollow portion.
The front end hollow portion of described driving shaft is provided with the obstruction that a stop part that limits described push rod continues to move forward.Obstruction can also be sealed driving shaft makes silicone oil be unlikely to leak.The rear end hollow portion of described driving shaft is provided with the positioning ring of a constraint push rod.
As preferably, described valve circle side in the form of annular discs and local cooperates with described oil outlet, and other parts are inside and outside connection.Guarantee that shoe cream room is interior smooth and easy, also make the valve circle effectively control oil outlet folding degree simultaneously.
As preferably, described return unit is one to be sheathed on the Returnning spring of described push rod rearward end, and the groove at described valve circle middle part, this Returnning spring rear end offsets, and the end face of front end and driving shaft offsets.
Described solenoid valve can comprise coil that links to each other with external engine electronic control unit and the coil case that coil is closed in described driving shaft front end.Described solenoid valve is located at described driving shaft front end by the fore bearing of front end and the rear bearing of rear end.
Described coil is provided with every magnetosphere around inwall described driving shaft is divided into two sections.
Compared with prior art, the invention has the advantages that: cancelled the temperature feeling ring on traditional silicon oil filled fan clutch, the various information that adopt electronic control unit will collect by predetermined parameters, through editable program, be converted to electrical signal, pass to clutch, the size of current that clutch transmits according to electronic control unit, produce the magnetic field of corresponding size, and then make push rod drive the break-make that valve block moves silicone oil between realization shoe cream room and the engagement chamber, so can predict in advance, response is fast, be subjected to ectocine little, controlling element is various, and the control accuracy height is not limited by the temperature sensibility heat distortion amount, temperature controlling range is wide, and layout can be rearranged in the clutch.
Description of drawings
Fig. 1 be among the embodiment valve circle with oil outlet closing state structural representation.
Fig. 2 is a part-structure schematic representation among Fig. 1.
The status architecture schematic representation that Fig. 3 opens oil outlet for valve circle among the embodiment.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment: as depicted in figs. 1 and 2, electronic silicone oil fan clutch comprises housing 7, protecgulum 10, active plate 6, driving shaft 1, oil storage cover 8, valve circle 17, push rod 15, return unit 14, solenoid valve 100, have spill port 20 on the protecgulum 10, driving shaft 1 hollow, and the internal diameter of front end hollow portion 12 is greater than the internal diameter of rear end hollow portion 11, and the rear end hollow portion 11 of driving shaft is provided with the positioning ring 9 of a constraint push rod 15.
Housing 7 and active plate 6 are located on the driving shaft 1, and active plate 6 is limited on the driving shaft 1 by a snap ring 30, and active plate 6 is provided with oil outlet 19, and be fixing with screw 2 between housing 7 and the protecgulum 10, and seal with seal ring 3.Protecgulum 10 forms engagement chamber 21 with housing 7, and oil storage cover 8 is tightly connected with active plate 6 and forms shoe cream room 18.
The trend that return unit 14 forces a bar 15 to keep backward directions to move all the time, return unit 14 employings one of present embodiment are sheathed on the Returnning spring of push rod 15 rearward end, and the groove at end valve circle 17 middle parts offsets behind this Returnning spring, and the end face of front end and driving shaft 1 offsets.
Working principle: as shown in Figure 1: when engine electronic control unit 26 control circuits produce electric current, electric current produces magnetic field by wire harness 4 through coil 24, magnetic field is passed driving shaft 1 leading portion and is attracted push rod 15, push rod 15 drives valve circle 17 and cuts out oil outlet 19, silicone oil just mainly concentrates on shoe cream room 18 like this, and the silicone oil amount that the engagement chamber is 21 li is just few, and the shearing force between them is just little like this, just the engaging force between them is just little, and this moment, fan can only low speed rotation.
As shown in Figure 3: when engine electronic control unit 26 control circuit interruptive currents, push rod 15 resets under Returnning spring 14 elastic reactions, valve circle 17 is opened oil outlet 19, this moment, silicone oil flowed to engagement chamber 21 by shoe cream room 18, along with increasing of silicone oil, active plate 6 increases with the engaging force of protecgulum 10, housing 7, thereby drives whole clutch high speed rotating, rotation speed of the fan also improves rapidly, realizes cooling fast.So repeatedly, realize air-cooled, energy-conservation purpose.
Claims (7)
1. electronic silicone oil fan clutch, comprise housing, protecgulum, oil storage cover, be rotatably installed on the driving shaft in the housing and be located at active plate on the driving shaft, aforementioned active plate forms the engagement chamber with one of aforementioned protecgulum and housing at least, aforesaid protecgulum is characterized in that also comprising by aforesaid oil storage cover and the active plate formation shoe cream room that is tightly connected
The valve circle is used to control the oil outlet aperture size of shoe cream room;
Push rod, afterbody are fixed with aforesaid valve circle, axially are arranged on the driving shaft of hollow and can move around;
Return unit, the trend that forces aforementioned push rod to keep backward directions to move all the time; And
Solenoid valve is located at described driving shaft front end, links to each other with engine electronic control unit by a wire harness, and the energising rear electromagnetic valve produces magnetic field, attracts push rod to move forward, thereby realizes making the control of valve circle to oil outlet aperture size;
Described push rod head has a restriction push rod and continues mobile backward stop part;
The internal diameter of the front end hollow portion of described driving shaft is greater than the internal diameter of rear end hollow portion; The stop part of described push rod is positioned at the front end hollow portion, and other parts then are located at the rear end hollow portion.
2. electronic silicone oil fan clutch according to claim 1 is characterized in that described oil outlet is located on the described active plate.
3. electronic silicone oil fan clutch according to claim 1 is characterized in that the front end hollow portion of described driving shaft is provided with the obstruction that a stop part that limits described push rod continues to move forward.
4. electronic silicone oil fan clutch according to claim 1 is characterized in that the rear end hollow portion of described driving shaft is provided with the positioning ring of a constraint push rod.
5. electronic silicone oil fan clutch according to claim 1, it is characterized in that described return unit is one to be sheathed on the Returnning spring of described push rod rearward end, the groove at this Returnning spring rear end and described valve circle middle part offsets, and the end face of front end and driving shaft offsets.
6. according to the described electronic silicone oil fan clutch of arbitrary claim in the claim 1 to 5, it is characterized in that described solenoid valve comprises coil that links to each other with external engine electronic control unit and the coil case that coil is closed in described driving shaft front end, and described solenoid valve is located at described driving shaft front end by the fore bearing of front end and the rear bearing of rear end.
7. electronic silicone oil fan clutch according to claim 6 is characterized in that described coil is provided with every magnetosphere described driving shaft is divided into two sections around inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101637990A CN101769193B (en) | 2008-12-31 | 2008-12-31 | Electronic silicone oil fan clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101637990A CN101769193B (en) | 2008-12-31 | 2008-12-31 | Electronic silicone oil fan clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101769193A CN101769193A (en) | 2010-07-07 |
| CN101769193B true CN101769193B (en) | 2011-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101637990A Active CN101769193B (en) | 2008-12-31 | 2008-12-31 | Electronic silicone oil fan clutch |
Country Status (1)
| Country | Link |
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| CN (1) | CN101769193B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678257A (en) * | 2012-05-17 | 2012-09-19 | 苏州奥杰汽车工业有限公司 | Cooling system of fan clutch |
| CN102758681A (en) * | 2012-06-25 | 2012-10-31 | 苏州睿昕汽车配件有限公司 | Novel electronic silicone oil clutch |
| CN102797770B (en) * | 2012-08-27 | 2014-06-18 | 温州奕龙汽车零部件有限公司 | Fan three-speed electromagnetic clutch for automobile |
| US9470278B1 (en) * | 2015-11-10 | 2016-10-18 | Borgwarner Inc. | Apparatus employing shear forces to transmit energy having flow altering structures configured to increase heat rejection from a working fluid and related method |
| CN105715698B (en) * | 2016-04-11 | 2018-01-30 | 华纳圣龙（宁波）有限公司 | A kind of fan clutch assembly |
| CN107013304A (en) * | 2017-04-28 | 2017-08-04 | 威隼汽车科技（宁波）有限公司 | A kind of automotive electronics silicon oil filled fan clutch |
| CN107255122B (en) * | 2017-08-15 | 2019-01-29 | 雪龙集团股份有限公司 | A kind of electric-controlled silicon oil clutch |
| CN108798862A (en) * | 2018-08-22 | 2018-11-13 | 温州车舟汽车部件有限公司 | A kind of electric-controlled silicon oil clutch |
-
2008
- 2008-12-31 CN CN2008101637990A patent/CN101769193B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101769193A (en) | 2010-07-07 |
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