CN202690201U - Radiator fan control circuit of automotive engine cooling fluid - Google Patents
Radiator fan control circuit of automotive engine cooling fluid Download PDFInfo
- Publication number
- CN202690201U CN202690201U CN 201220304858 CN201220304858U CN202690201U CN 202690201 U CN202690201 U CN 202690201U CN 201220304858 CN201220304858 CN 201220304858 CN 201220304858 U CN201220304858 U CN 201220304858U CN 202690201 U CN202690201 U CN 202690201U
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- vehicle
- temperature sensor
- water temperature
- control circuit
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Abstract
The utility model relates to a radiator fan control circuit of an automotive engine cooling fluid. The radiator fan control circuit comprises a vehicle-mounted MCU (microprogrammed control unit) and an automobile microcomputer controller, wherein the vehicle-mounted MCU is connected with a voltage stabilizer through a line, the voltage stabilizer is connected with a power positive pole through a line, and the vehicle-mounted MCU is also respectively connected with base electrodes of two triodes; collector electrodes of the two triodes are connected with a relay used for controlling a low-speed fan and a high-speed fan through lines, and the automobile microcomputer controller is connected with a water temperature sensor through a line; and the water temperature sensor is connected with a sampling resistor through a line, the bottom end of the sampling resistor is grounded through a line, and the two ends of the water temperature sensor are respectively connected with the vehicle-mounted MCU through lines. The radiator fan control circuit provided by the utility model has the advantages that the structure is simple, the water temperature sensor is used for monitoring the temperature of the engine cooling fluid, the sampling resistor is used for monitoring whether the automobile microcomputer controller is in a dormant state, the vehicle-mounted MCU can cause a radiator fan to start operation in an advanced manner according to the monitoring data of the water temperature sensor, and the possibility that the other parts are damaged by the high temperature of the cooling fluid is greatly reduced.
Description
Technical field
The utility model relates to a kind of control circuit of cooling fan of automobile engine cooling liquid.
Background technique
Motor is in running; because engine load is different; engine coolant temperature constantly changes; the electronic type radiation fan can start when engine coolant temperature reaches certain limit usually; but when concrete the use, because the engine coolant temperature boundary that some motor car engine arranges is when too high, it is slow to cause radiation fan to start; and then cause COOLANT TEMPERATURE, cause the damage of other parts.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of control circuit of cooling fan of automobile engine cooling liquid simple in structure, easy to use.
The control circuit of cooling fan of automobile engine cooling liquid of the present utility model, comprise vehicle-mounted MCU and vehicle microcomputer controller, described vehicle-mounted MCU is by the connection voltage stabilizer, voltage stabilizer is connected with positive source by circuit, vehicle-mounted MCU also connects respectively the base stage of two triodes by circuit, the collector electrode of two triodes passes through respectively the relay of line connection control low speed fan and high speed fan, described vehicle microcomputer controller is by the connection cooling-water temperature sensor, cooling-water temperature sensor is by the connection sample resistance, the bottom of sample resistance is by line-to-ground, and the two ends of cooling-water temperature sensor are connected with vehicle-mounted MCU by circuit respectively.
The control circuit of cooling fan of automobile engine cooling liquid of the present utility model, the emitter of described two triodes is all by line-to-ground.
Compared with prior art the beneficial effects of the utility model are: control circuit of cooling fan of the present utility model is simple in structure, easy to use, share a cooling-water temperature sensor with former car and monitor engine coolant temperature, sampling resistor is used for monitoring the vehicle microcomputer controller and whether is in state of dormancy, vehicle-mounted MCU is according to the monitored data of cooling-water temperature sensor, allow the radiation fan pre-cooling turn round, significantly reduce the possibility of damaging other parts because of cooling liquid high temperature.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the control circuit of cooling fan of the described a kind of automobile engine cooling liquid of the utility model embodiment.
Among the figure:
1, vehicle-mounted MCU; 2, vehicle microcomputer controller; 3, voltage stabilizer; 4, triode; 5, cooling-water temperature sensor; 6, sample resistance.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, a kind of control circuit of cooling fan of automobile engine cooling liquid, comprise vehicle-mounted MCU1 and vehicle microcomputer controller 2, described vehicle-mounted MCU1 is by connection voltage stabilizer 3, voltage stabilizer 3 is connected with positive source by circuit, vehicle-mounted MCU1 also connects respectively the base stage of two triodes 4 by circuit, the collector electrode of two triodes 4 passes through respectively the relay of line connection control low speed fan and high speed fan, described vehicle microcomputer controller 2 is by connection cooling-water temperature sensor 5, cooling-water temperature sensor 5 is by connection sample resistance 6, the bottom of sample resistance 6 is by line-to-ground, and the two ends of cooling-water temperature sensor 5 are connected with vehicle-mounted MCU1 by circuit respectively.
The control circuit of cooling fan of automobile engine cooling liquid of the present utility model, the emitter of described two triodes 4 is all by line-to-ground.
Control circuit of cooling fan of the present utility model is simple in structure, easy to use, share a cooling-water temperature sensor with former car and monitor engine coolant temperature, voltage stabilizer provides a stable operating voltage for vehicle-mounted MCU, sampling resistor is used for monitoring the vehicle microcomputer controller and whether is in state of dormancy, vehicle-mounted MCU allows the radiation fan pre-cooling turn round according to the monitored data of cooling-water temperature sensor, significantly reduces the possibility of damaging other parts because of cooling liquid high temperature.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (2)
1. the control circuit of cooling fan of an automobile engine cooling liquid, comprise vehicle-mounted MCU (1) and vehicle microcomputer controller (2), it is characterized in that: described vehicle-mounted MCU (1) is by connection voltage stabilizer (3), voltage stabilizer (3) is connected with positive source by circuit, vehicle-mounted MCU (1) also connects respectively the base stage of two triodes (4) by circuit, the collector electrode of two triodes (4) passes through respectively the relay of line connection control low speed fan and high speed fan, described vehicle microcomputer controller (2) is by connection cooling-water temperature sensor (5), cooling-water temperature sensor (5) is by connection sample resistance (6), the bottom of sample resistance (6) is by line-to-ground, and the two ends of cooling-water temperature sensor (5) are connected with vehicle-mounted MCU (1) by circuit respectively.
2. the control circuit of cooling fan of automobile engine cooling liquid according to claim 1, it is characterized in that: the emitter of described two triodes (4) is all by line-to-ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304858 CN202690201U (en) | 2012-06-27 | 2012-06-27 | Radiator fan control circuit of automotive engine cooling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304858 CN202690201U (en) | 2012-06-27 | 2012-06-27 | Radiator fan control circuit of automotive engine cooling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690201U true CN202690201U (en) | 2013-01-23 |
Family
ID=47545830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220304858 Expired - Fee Related CN202690201U (en) | 2012-06-27 | 2012-06-27 | Radiator fan control circuit of automotive engine cooling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317521A (en) * | 2015-11-13 | 2016-02-10 | 湖州职业技术学院 | Engine electric cooling fan multi-level control system |
| CN112253304A (en) * | 2020-10-21 | 2021-01-22 | 潍柴动力股份有限公司 | Fan control method, device and equipment |
-
2012
- 2012-06-27 CN CN 201220304858 patent/CN202690201U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317521A (en) * | 2015-11-13 | 2016-02-10 | 湖州职业技术学院 | Engine electric cooling fan multi-level control system |
| CN112253304A (en) * | 2020-10-21 | 2021-01-22 | 潍柴动力股份有限公司 | Fan control method, device and equipment |
| CN112253304B (en) * | 2020-10-21 | 2022-04-26 | 潍柴动力股份有限公司 | Fan control method, device and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130627 |