CN1587657A - Automatic air quantity fan for vehicle - Google Patents
Automatic air quantity fan for vehicle Download PDFInfo
- Publication number
- CN1587657A CN1587657A CN 200410078124 CN200410078124A CN1587657A CN 1587657 A CN1587657 A CN 1587657A CN 200410078124 CN200410078124 CN 200410078124 CN 200410078124 A CN200410078124 A CN 200410078124A CN 1587657 A CN1587657 A CN 1587657A
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- CN
- China
- Prior art keywords
- fan
- driving disc
- memory alloy
- alloy spring
- plate
- 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.)
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Abstract
The invention relates to a kind of inside-new type fan that can change the wind amount automatically. Its structure is composed of fan axle, orm memory alloy spring, initiative plate, reverse spring, fan hub, magnet and bearing, etc. The form memory alloy spring is tied on the fan axle for temperature sensing and controlling the voluntary plate to move along the axial of the fan axle. Fan hub is fixed on the fan axle through bearing, it is cohered with annular magnet towards the initiative plate which connects with the fan axle through key and can move along the axial. Its operation principle is as the following: when the air current temperature behind the radiator of the internal-combustion engine is lower than the established temperature, the form memory alloy spring is in the shrinking state, the distance between the initiative plate and the annular magnet is widened, so the magnetic force between the two parts is very small, the rotational speed of the fan is very low; when the air current temperature behind the radiator of the internal-combustion engine is higher than the established temperature, the form memory alloy spring extends.
Description
The invention belongs to technical field of traffic transportation.
Modern Vehicular internal combustion engine all is equipped with radiation fan for strengthening the radiating effect of radiator; Fan consumes the 5-10% of power of IC engine approximately.Test shows that automobile needs the time of fan work less than 10% in driving process; Fan work does harm rather than good internal-combustion engine At All Other Times.Many for this reason internal-combustion engines are equipped with automatic fan clutch, control the rotating speed of fan according to actual needs, with the control air quantity.Can not only reduce power, saving fuel oil that fan consumes; And the working life that can improve internal-combustion engine, reduce fan noise.Silicone oil formula and the electromagnetic type that has commonly used.
But these two kinds fan die clutch construction are all comparatively complicated, and functional reliability is poor, the purpose of this invention is to provide the new type auto air quantity fan of a kind of simple structure, easily manufactured, reliable operation.
Structure of the present invention is made up of fan shaft, shape memory alloy spring, driving disc, backspring, fan hub, magnet, bearing etc.Wherein the fan shaft front end is shaped on screw thread, and one section square-section shaft part is arranged; Shape memory alloy spring is enclosed within on the fan shaft, and an end is pressed on the driving disc, and the other end is pressed on the back-up ring, is used for temperature-sensitive and controls driving disc moving axially along fan shaft.Fan hub is loaded on the fan shaft by bearing, and fan hub coheres ring magnet facing to the driving disc end; Driving disc makes square for circular its hole and fan shaft square-section shaft part is assembled together, and can move axially along fan shaft, and driving disc is shaped on flabellum, is used for loosing when removing driving disc and magnet relative movement because the heat that electric convolution produces; Driving disc end face and periphery near fan hub the time and magnet and fan hub wheel rim inner headed face form closed magnetic circuit.Backspring also is enclosed within on the fan shaft, between driving disc and snap ring.
Working principle: when the gas flow temperature behind the engine radiator is lower than setting temperature, shape memory alloy spring is in contraction state, backspring make driving disc away from, distance between driving disc and the magnet is big, magnetic force between driving disc and the magnet is very little, therefore when driving disc and fan shaft rotation, the rotating speed of fan is low, air quantity is little.When the gas flow temperature behind the engine radiator is higher than setting temperature, shape memory alloy spring is in stretched condition, the compression backspring makes driving disc and magnet approaching, distance between driving disc and the magnet is little, it is big that magnetic force between driving disc and the magnet becomes, therefore when driving disc and fan shaft rotation, drive rotation speed of the fan and increase, air quantity strengthens; Thereby reach the purpose that changes air quantity of fan according to the engine radiating requirement automatically.
Accompanying drawing is a tectonic maps of the present invention, (1) nut, (2) back-up ring, (3) marmem bullet (4) flabellum, (5) backspring, (6) driving disc, (7) fan, (8) magnetism resistent ring, (9) magnet, (10) end ring, (11) bearing, (12) snap ring (13) fan shaft, (14) fan hub among the figure.
The all available common process technology of various part of the present invention is made.
Claims (1)
- A kind of automatic air quantity fan for vehicle, it is characterized in that: the structure of automatic air quantity fan for vehicle is made up of fan shaft, shape memory alloy spring, driving disc, backspring, fan hub, magnet, bearing etc., wherein the fan shaft front end is shaped on screw thread, and one section square-section shaft part is arranged; Shape memory alloy spring is enclosed within on the fan shaft, and an end is pressed on the driving disc, and the other end is pressed on the back-up ring, and fan hub is loaded on the fan shaft by bearing, and fan hub coheres ring magnet facing to the driving disc end; Driving disc is a disc, and its hole is made square and fan shaft square-section shaft part is assembled together, and can move axially along fan shaft, and driving disc is shaped on flabellum; Backspring also is enclosed within on the fan shaft, between driving disc and snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410078124 CN1587657A (en) | 2004-09-17 | 2004-09-17 | Automatic air quantity fan for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410078124 CN1587657A (en) | 2004-09-17 | 2004-09-17 | Automatic air quantity fan for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1587657A true CN1587657A (en) | 2005-03-02 |
Family
ID=34604958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410078124 Pending CN1587657A (en) | 2004-09-17 | 2004-09-17 | Automatic air quantity fan for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1587657A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102016260A (en) * | 2008-04-28 | 2011-04-13 | 斯堪尼亚商用车有限公司 | Cooling fan |
| CN109737078A (en) * | 2018-12-29 | 2019-05-10 | 联想(北京)有限公司 | Fan and electronic equipment |
-
2004
- 2004-09-17 CN CN 200410078124 patent/CN1587657A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102016260A (en) * | 2008-04-28 | 2011-04-13 | 斯堪尼亚商用车有限公司 | Cooling fan |
| CN102016260B (en) * | 2008-04-28 | 2014-03-26 | 斯堪尼亚商用车有限公司 | Cooling fan |
| CN109737078A (en) * | 2018-12-29 | 2019-05-10 | 联想(北京)有限公司 | Fan and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |