CN203702311U - Clutch of electric eddy current internal combustion engine cooling fan - Google Patents
Clutch of electric eddy current internal combustion engine cooling fan Download PDFInfo
- Publication number
- CN203702311U CN203702311U CN201420028856.5U CN201420028856U CN203702311U CN 203702311 U CN203702311 U CN 203702311U CN 201420028856 U CN201420028856 U CN 201420028856U CN 203702311 U CN203702311 U CN 203702311U
- Authority
- CN
- China
- Prior art keywords
- driving disc
- follower
- coil
- eddy current
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A clutch of an electric eddy current internal combustion engine cooling fan is structurally composed of a fixing frame, a driven wheel, a driving disc, a fan shaft, a bearing and a coil. According to the working principle, the fan shaft and the driving disc are driven to rotate by an internal combustion engine, when the temperature of a refrigerant is lower than set temperature, a temperature control switch is at an off position, the coil is not powered on and does not have magnetic force lines, no magnetic force exists between the driven wheel and the driving disc, and the fan does not work; when the temperature of the refrigerant reaches the set temperature, the temperature switch is closed, the coil is powered on, the magnetic force lines generated by the coil pass through the driven wheel, a magnetic conductive toothed ring on the driven wheel and the driving disc to form a closed loop, an induction eddy current is generated on the driving disc, an eddy current magnetic field interacts with a coil magnetic field, and mutual attraction is formed between the driven wheel and the driving disc and makes the driven wheel rotate along with the driving disc to drive the fan to work.
Description
Technical field
The utility model relates to a kind of electric eddy current type IC. engine cooling fan clutch.
Background technique
Internal-combustion engine is the radiating effect that strengthens radiator, and fan is all housed; Test shows, automobile needs the time of fan work less than 10% in the process of moving; Fan work combustion motor does harm rather than good At All Other Times.Many internal-combustion engines adopt the three fast fans that magnetic clutch is housed, and by the combination of the electromagnetic force control friction plate of coil with separates to realize transmission of power and interruption, and then control the rotating speed of fan, to reduce power, the saving fuel oil of fan consumption.Not only complex structure of this fan clutch, and owing to realizing combination and separating by friction, reliability is low.
Model utility content
The purpose of this utility model is to provide a kind of electric eddy current type IC. engine cooling fan clutch, and this clutch is mainly made up of fan shaft, driving disc, follower, coil and magnetic conduction ring gear.Magnetic force between dependence dish coil electricity back front driven wheel and driving disc, makes combining of follower and driving disc, realizes follower is rotated with driving disc; Thereby drive fan work.Compared with common magnetic clutch, nothing friction between follower, driving disc in the time of work, reliability is high; And without friction plate and return spring, make structure simpler; Can also obtain easily needed various rotating speed.
Structure of the present utility model is mainly made up of fan shaft, follower, driving disc, bearing, coil and coil case.Follower is wherein made up of wheel hub, spoke and wheel rim, and fan is fixed on follower; Between Driven hub and wheel rim, form annular space, spoke place have ring-type, discontinuous, play the magnet isolation tank of separated magnetic effect; Be shaped with magnetic conduction ring gear in follower end face magnet isolation tank both sides.Coil and coil case are placed in follower annular space, between coil case and follower, leave certain interval; Coil case is loaded on fan shaft by bearing coil.Driving disc is disc, is contained on fan shaft by spline, between driving disc and follower bearing, establishes spring pad, plays locking and regulates gap effect between driving disc and follower magnetic conduction ring gear, and the axial position of driving disc is regulated by adjusting nut.
Working circuit of the present utility model is made up of power supply, high speed control switch, middling speed control switch, middling speed current-limiting resistance, low speed control switch, low speed current-limiting resistance and coil.High speed control switch, middling speed control switch, low speed control switch are all made up of bimetallic strip, parallel with one another.
Working principle: internal-combustion engine drives fan shaft and driving disc rotate; When the temperature of cooling liquid is during lower than setting temperature, each control switch is all in off position, coil no electric circuit, and coil is without the magnetic line of force; Between follower and driving disc, without magnetic force, fan is not worked.In the time that coolant temperature reaches setting temperature, low speed control switch is first closed, coil electricity (electric current is limited by the larger low speed current-limiting resistance of resistance, and electric current is less); The magnetic line of force that coil produces by follower and on magnetic conduction ring gear, driving disc form closed-loop path.And on driving disc, produce inductive loop, eddy current magnetism and coil magnetic field interact; Between follower and driving disc, form mutual attraction force, this attraction force makes follower rotate with driving disc, drive fan work.When temperature continues to raise, middling speed control switch, high speed control switch are closed respectively, obtain large electric current, can make the attraction force between the magnetic conduction ring gear on driving disc and follower become large, and the rotating speed of fan raises; Make it to adapt to the heat radiation requirement of internal-combustion engine.For high-end vehicle, also can adopt variable resistor is set in circuit, carry out control coil electric current by Engine ECU control resistance.
Brief description of the drawings: accompanying drawing 1 is tectonic maps of the present utility model, (1) adjusting nut, (2) follower bearing, (3) follower, (4) magnetic conduction ring gear, (5) magnet isolation tank, (6) fan, (7) coil, (8) coil case, (9) fan shaft, (10) bearing coil, (11) spring pad, (12), driving disc in figure.
Accompanying drawing 2 is working circuit diagrams of the present utility model, (1) power supply, (2) high speed control switch, (3) middling speed control switch, (4) middling speed current-limiting resistance, (5) low speed control switch, (6) low speed current-limiting resistance, (7) coil in figure.
Embodiment
It is upper that driving disc (12) in accompanying drawing 1 is loaded on fan shaft (9), and follower (3) is loaded on fan shaft (9) by follower bearing (2); Coil case (8) is loaded on fan shaft (9) by bearing coil (10).
Claims (2)
1. an electric eddy current type IC. engine cooling fan clutch, is characterized in that: the structure of electric eddy current type IC. engine cooling fan clutch is made up of fan shaft, follower, driving disc, bearing, coil and coil case; Follower is wherein made up of wheel hub, spoke and wheel rim, and fan is fixed on follower; Between Driven hub and wheel rim, form annular space, spoke place have ring-type, discontinuous, play the magnet isolation tank of separated magnetic effect, be shaped with magnetic conduction ring gear in follower end face magnet isolation tank both sides; Coil and coil case are placed in follower annular space, between coil case and follower, leave certain interval.
2. electric eddy current type IC. engine cooling fan clutch as claimed in claim 1, is characterized in that: driving disc is disc, is contained on fan shaft by spline; Between driving disc and follower bearing, establish spring pad, play locking and regulate gap effect between driving disc and follower magnetic conduction ring gear, the axial position of driving disc is regulated by adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028856.5U CN203702311U (en) | 2014-01-17 | 2014-01-17 | Clutch of electric eddy current internal combustion engine cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028856.5U CN203702311U (en) | 2014-01-17 | 2014-01-17 | Clutch of electric eddy current internal combustion engine cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702311U true CN203702311U (en) | 2014-07-09 |
Family
ID=51052765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420028856.5U Expired - Fee Related CN203702311U (en) | 2014-01-17 | 2014-01-17 | Clutch of electric eddy current internal combustion engine cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702311U (en) |
-
2014
- 2014-01-17 CN CN201420028856.5U patent/CN203702311U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |