CN103122786A - Light truck cooling fan system - Google Patents
Light truck cooling fan system Download PDFInfo
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- CN103122786A CN103122786A CN201110368745XA CN201110368745A CN103122786A CN 103122786 A CN103122786 A CN 103122786A CN 201110368745X A CN201110368745X A CN 201110368745XA CN 201110368745 A CN201110368745 A CN 201110368745A CN 103122786 A CN103122786 A CN 103122786A
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Abstract
The invention discloses a light truck cooling fan system which comprises a storage battery, a relay, a fan, a speed regulation resistor, two relays and a temperature controlled switch. The temperature controlled switch comprises a gear I switch and a gear II switch; the gear I switch, a first relay and the speed regulation resistor are connected in series to form a gear I circuit; the gear II switch and a second relay are connected in series to form a gear II circuit; the gear I circuit is connected with the gear II circuit in parallel, and is connected with the storage battery and the fan in series. Due to the fact that an electronic control unit (ECU) is replaced by the temperature controlled switch and the relays, revolving speed of the fan can be controlled according to water temperature signals, cooling balance of an engine can be achieved, and energy losses of the engine can be effectively reduced; the light truck cooling fan system can effectively reduce cost, and is suitable for being applied to the field of commercial vehicles of light trucks and the like.
Description
Technical field
The present invention relates to the light truck field, particularly a kind of light truck cooling fan system.
Background technique
At present, the application of diesel engine is increasingly extensive, relate to commercial car and passenger car two classes, and commercial car mostly is major works car, lorry or long-distance passenger transportation car, wherein lorry be divided into again gently, the Medium or severe type truck.Various types of vehicles require also different to diesel engine performance, structure, the type of cooling etc.For the response energy-saving and emission-reduction are called, the passenger car cooling fan is mostly electronic fan, and electronic fan can be regulated the rotating speed of fan according to water temperature, and fan can stop operating at a certain temperature, can effectively reduce the energy loss of motor like this, improve the utilization ratio of motor.And the direct-connected fan power that the power ratio of electronic fan is general is much smaller, therefore the application of electronic fan can bring the reduction oil consumption to motor, improves the advantage of discharging.
Electronic fan is realized high and low rotating speed, and its key is to control, and this just needs a controller, this controller is generally motor complete machine controller (ECU), ECU can receive water temperature signal, controls the rotating speed of electronic fan according to water temperature signal, to realize the engine cooling balance.
At present, the realization of electronic fan needs controller (ECU), it is high that this relates to cost, the motor that the discharging of motor need to reach Europe III, emission standard that Europe IV is even higher just has controller, and in commercial car, generally all control ratio is tighter for cost, and the present major part of the discharging of light truck also rests on Europe II, Europe III mechanical pump level, there is no controller.This just causes in the commercial car field, and especially light truck, be subjected to the effects limit such as cost, control, and electronic fan is never used, and can not realize the engine cooling balance, and effectively reduce the energy loss of motor.
Summary of the invention
The technical problem that the present invention solves be to provide a kind of cost low, can control according to water temperature signal the light truck cooling fan system of rotation speed of the fan.
For achieving the above object, according to the invention provides a kind of light truck cooling fan system, comprise: storage battery, relay, fan, speed adjusting resistance, two relays and temperature detect switch (TDS), temperature detect switch (TDS) comprises: I gear switch and II gear switch, I gear switch, the first relay and speed adjusting resistance are connected into I shelves circuit, II gear switch and the second relay are connected into II shelves circuit, connect with storage battery and fan after I shelves circuit and the parallel connection of II shelves circuit again.
Further, be in series with the first insurance between storage battery and the first relay.
Further, be in series with the second insurance between storage battery and the second relay.
According to technological scheme of the present invention, owing to having replaced ECU with temperature detect switch (TDS) and relay, can either control rotation speed of the fan according to water temperature signal, realize the engine cooling balance, and effectively reduce the energy loss of motor; Can effectively reduce costs again, be fit to be applied to the commercial car such as light truck field.
Description of drawings
Fig. 1 is the circuit theory diagrams according to light truck cooling fan system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subjected to the restriction of embodiment.
Referring to Fig. 1, this light truck cooling fan system comprises: storage battery 1, insurance 2, insurance 3, relay 4, fan 5, speed adjusting resistance 6, relay 7 and temperature detect switch (TDS) 8.Wherein, storage battery 1 is whole circuit supply.Temperature detect switch (TDS) 8 is the temperature variation according to working environment, in the inner physical deformation that occurs of switch, thereby produce the Automatic Control Component of conducting or disconnecting circuit, the temperature conditioning unit of temperature detect switch (TDS) 8 should be arranged on the responsive to temperature position (for example water tank) of engine-cooling system, the temperature variation of dynamic acquisition cooling liquid makes temperature detect switch (TDS) 8 to select closed suitable gear according to the temperature variation of cooling liquid.Temperature detect switch (TDS) 8 comprises: I gear switch 81 and II gear switch 82, the gear of respectively corresponding two temperature spotss.Relay is a kind of electric control device.It has control system (claim not only input circuit) and by the interactive relationship between control system (but also claiming output loop).Usually be applied in the control circuit of automation, it is actually a kind of " recloser " that goes to control large electric current running with little electric current.I gear switch 81, relay 7, insurance 2 and speed adjusting resistance 6 are connected into I shelves circuit, and II gear switch 82, insurance 3 and relay 4 are connected into II shelves circuit, connect with storage battery 1 and fan 5 after I shelves circuit and the parallel connection of II shelves circuit again.
Its basic functional principle is: when engine coolant temperature reaches certain to fixed temperature, speed adjusting resistance 6 is connected with fan 5, realize fan 5 low speed rotation, when coolant temperature reached higher certain temperature, speed adjusting resistance 6 was not worked, fan 5 High Rotation Speeds, can realize conveniently that like this fan is low, switch at a high speed, to adapt to the different operating mode of motor, to reach cooling balance, simultaneously can energy-saving and emission-reduction.
In conjunction with Fig. 1, this working principle is done simple the elaboration:
After the motor operation, when temperature conditioning unit detects engine coolant temperature and reaches certain temperature (being assumed to be 82 ℃), in temperature detect switch (TDS) 8, the I shelves are closed, the coil electricity of relay 7, under the effect of electromagnetic force, the normally opened contact of relay 7 is closed, electric current from storage battery 1 positive pole through insure 2, relay 7, speed adjusting resistance 6, fan 5 be to storage battery 1 negative pole, form the loop, fan 5 low speed rotation at this moment, the heat radiation when to satisfy the engine-cooling system coolant temperature be not very high.
When temperature conditioning unit detects engine coolant temperature and reaches higher temperature (supposing 90 ℃), I shelves in temperature detect switch (TDS) 8, II shelves are closed.the coil electricity of the coil of relay 7 and relay 4, under the effect of electromagnetic force, the normally opened contact of the normally opened contact of relay 7 and relay 4 is closed, wherein, article one the electric current of circuit from storage battery 1 positive pole through insuring 2, relay 7, speed adjusting resistance 6, fan 5 is to storage battery 1 negative pole, the electric current of second circuit from storage battery 1 positive pole through insuring 3, relay 4, fan 5 is to storage battery 1 negative pole, form complete loop, because 6 liang of terminal potentials of speed adjusting resistance equate, at this moment speed adjusting resistance 6 is inoperative, actual only have the second circuit working, at this moment fan 5 High Rotation Speeds, the very high heat radiation requirement of engine-cooling system coolant temperature when satisfying the large load of motor.
Replaced ECU with temperature detect switch (TDS) and relay, both can increase or reduce the output power of fan according to actual conditions, can effectively reduce costs again, also simplified simultaneously product and formed structure, easily operation.
In addition, temperature transducer by selecting different size or select the adjustable temp sensor, can set different fans start and stop temperature separately according to designing requirement, so just can control according to the temperature of engine coolant the start and stop of different fans, many desk fan heat radiations in the time of can realizing high temperature, during low temperature, one desk fan heat radiation does not even start the automatic control of fan, thereby not only can satisfy the engine radiating requirement but also effectively reduce the energy consumption that fan cooling causes.
Also have, use the start and stop of Control fan, can avoid temperature detect switch (TDS) to be subject to the impact of larger electric current, improve Security.The use of insurance can prevent power supply line's overcurrent cause danger when fan moves, the insurance specification of 30A can meet the overcurrent protection requirement of most of commercial car.
At last, in the technical program, selected component are all technology maturation and common commercially available product, are characterized in that cost is low, reliability is high and are easy to buy spare part, and the hazard rate after therefore making is low and easy to maintenance.
Above disclosed be only a specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (3)
1. light truck cooling fan system, it is characterized in that, comprise: storage battery, relay, fan, speed adjusting resistance, two relays and temperature detect switch (TDS), described temperature detect switch (TDS) comprises: I gear switch and II gear switch, described I gear switch, the first relay and speed adjusting resistance are connected into I shelves circuit, described II gear switch and the second relay are connected into II shelves circuit, connect with described storage battery and fan after described I shelves circuit and the parallel connection of II shelves circuit again.
2. light truck cooling fan system according to claim 1, is characterized in that, is in series with the first insurance between described storage battery and described the first relay.
3. light truck cooling fan system according to claim 1 and 2, is characterized in that, is in series with the second insurance between described storage battery and described the second relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110368745XA CN103122786A (en) | 2011-11-18 | 2011-11-18 | Light truck cooling fan system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110368745XA CN103122786A (en) | 2011-11-18 | 2011-11-18 | Light truck cooling fan system |
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| Publication Number | Publication Date |
|---|---|
| CN103122786A true CN103122786A (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110368745XA Pending CN103122786A (en) | 2011-11-18 | 2011-11-18 | Light truck cooling fan system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404582A (en) * | 2020-03-17 | 2021-09-17 | 常州市温帆温控科技有限公司 | Diesel engine electric control fan controller and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4408798A1 (en) * | 1993-03-17 | 1994-09-22 | Weber Srl | Control system of a device for the cooling of an internal combustion engine |
| JPH11229875A (en) * | 1997-11-26 | 1999-08-24 | Denso Corp | Cooling system for vehicle |
| CN201753629U (en) * | 2009-06-04 | 2011-03-02 | 烟台汽车工程职业学院 | Automatic control device for cooling fan of engine |
| CN202348409U (en) * | 2011-11-18 | 2012-07-25 | 广西玉柴机器股份有限公司 | Cooling fan system for light truck |
-
2011
- 2011-11-18 CN CN201110368745XA patent/CN103122786A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4408798A1 (en) * | 1993-03-17 | 1994-09-22 | Weber Srl | Control system of a device for the cooling of an internal combustion engine |
| JPH11229875A (en) * | 1997-11-26 | 1999-08-24 | Denso Corp | Cooling system for vehicle |
| CN201753629U (en) * | 2009-06-04 | 2011-03-02 | 烟台汽车工程职业学院 | Automatic control device for cooling fan of engine |
| CN202348409U (en) * | 2011-11-18 | 2012-07-25 | 广西玉柴机器股份有限公司 | Cooling fan system for light truck |
Non-Patent Citations (2)
| Title |
|---|
| 王忠良: "电子控制冷却风扇", 《汽车电器》 * |
| 顾晓庆等: "上海别克GL8商务车温度高，冷却风扇运转异常", 《汽车维护与修理》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404582A (en) * | 2020-03-17 | 2021-09-17 | 常州市温帆温控科技有限公司 | Diesel engine electric control fan controller and control method thereof |
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Application publication date: 20130529 |