CN209022716U - The adaptive radiator of mobile unit - Google Patents
The adaptive radiator of mobile unit Download PDFInfo
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- CN209022716U CN209022716U CN201821486110.3U CN201821486110U CN209022716U CN 209022716 U CN209022716 U CN 209022716U CN 201821486110 U CN201821486110 U CN 201821486110U CN 209022716 U CN209022716 U CN 209022716U
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- fan
- mcu microcontroller
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- mobile unit
- temperature
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Abstract
A kind of adaptive radiator of mobile unit, including MCU microcontroller, temperature detecting module, power module and fan, the temperature signal output end of temperature detecting module is connected with the ADC pin of MCU microcontroller, power module enable end is connect with a GPIO pin of MCU microcontroller, fan is equipped with fan-status output end and speed controling signal input terminal, fan-status output end connects the TIMER1 pin of MCU microcontroller, the TIMER2 pin of the speed controling signal input terminal connection MCU microcontroller.The radiator carries out logic judgment and fan control using the MCU microcontroller that mobile unit carries, realize the adaptive adjustable of cooling system rotation speed of the fan, reduce the heat dissipation power consumption of mobile unit, it can be monitored by MCU microcontroller implementation fan-status simultaneously, the device reliability is high, low in energy consumption, noise is small.
Description
Technical field
It is especially a kind of vehicle-mounted to set the utility model relates to electricity field more particularly to vehicle electronic device heat dissipation technology
Standby adaptive radiator.
Background technique
In the prior art, the active heat removal system of mobile unit controls the fortune of fan using power supply signal and earth signal
Row, when system detection to temperature is more than that setting starts threshold value, fan power supply is opened in control, and fan is worked with maximum (top) speed, temperature
When degree is reduced to outage threshold, fan of cutting off the power stops working immediately.Although cooling system control is simple, it is convenient to realize,
But it has the disadvantage in that fan always works at maximum (top) speed, causes power wastage, increase cooling system noise, Wu Faman
Requirement of the existing mobile unit of foot for low-power consumption；It can not effectively learn fan operating state, if fan emerged in operation failure,
Continued power will cause fan body overheat, and causing fan and power supply to burn out leads on fire, generation security risk.
Summary of the invention
It is described this vehicle-mounted to set the purpose of this utility model is to provide a kind of adaptive radiator of mobile unit
Standby adaptive radiator, the MCU microcontroller carried using mobile unit realize cooling system rotation speed of the fan according to intracavitary temperature
Degree is adaptive adjustable, reduces the heat dissipation power consumption of mobile unit, and can monitor fan-status, improves system reliability.
The adaptive radiator of this mobile unit of the utility model, including MCU microcontroller, temperature detecting module,
Power module and fan, the MCU microcontroller are provided with ADC pin, GPIO pin, TIMER1 pin and TIMER2 pipe
Foot, the temperature signal output end of the temperature detecting module is connected with the ADC pin of the MCU microcontroller, described
Temperature detecting module monitors temperature in vehicle-mounted equipment cavity and is converted into the voltage signal input MCU microcontroller, described
Power module enable end is connect with a GPIO pin of the MCU microcontroller, controls the opening of the power module
And closing, the fan electrical connection power module, the fan are equipped with fan-status output end and revolving speed control
Signal input part processed, the TIMER1 pin of the fan-status output end connection MCU microcontroller, the fan
State the MCU microcontroller is fed back to by the TIMER1 pin, the speed controling signal input terminal connects
The TIMER2 pin of the MCU microcontroller is connect, the MCU microcontroller changes speed controling signal according to temperature change
The duty ratio control rotation speed of the fan.
Further, the temperature element in the temperature detecting module uses thermistor.
Further, the MCU microcontroller can be changed by TIMER2 pin to the fan output duty cycle
Square wave.
The working principle of the utility model is: MCU microcontroller detects mobile unit every 5S by temperature detecting module
Cavity temperature, when cavity temperature is greater than 65 degree or primary processor junction temperature is greater than 95 degree, the GPIO pin output of MCU microcontroller
High level, power module are opened, and fan is started to work.When initial, the revolving speed that MCU microcontroller output duty cycle is 0.3 is controlled
Signal controls rotation speed of the fan, and when equipment cavity temperature improves, speed controling signal duty ratio increases, the control of MCU microcontroller
Fan improves revolving speed, and when equipment cavity temperature reduces, speed controling signal duty ratio reduces, and MCU microcontroller controls fan
Revolving speed is reduced, when mobile unit cavity temperature is lower than 65 degree, the GPIO pin of MCU microcontroller exports low level, power supply mould
Block is closed, and fan stops working, and completes a radiation processes.When MCU microcontroller is received by TIMER1 pin in operation
When fan-status abnormal signal, MCU microcontroller can drag down the enable signal of power module in time and close power supply, export simultaneously
Fan failure diagnostic message.
The utility model compares with prior art, and effect is positive and apparent.The utility model is set using vehicle-mounted
Standby included MCU microcontroller carries out logic judgment and fan control, realizes the adaptive adjustable of cooling system rotation speed of the fan,
The heat dissipation power consumption of mobile unit is reduced, while can be monitored by MCU microcontroller implementation fan-status, the system reliability
It is high, low in energy consumption, noise is small.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the workflow schematic diagram of the utility model.
Specific embodiment
Embodiment 1:
As shown in Figure 1 to Figure 2, the adaptive radiator of the mobile unit of the utility model, including MCU microcontroller 1, temperature
Spend detection module 2, power module 3 and fan 4, temperature signal output end 201 and the MCU microcontroller 1 of temperature detecting module 2
ADC pin 101 is connected, and temperature detecting module 2 monitors temperature in vehicle-mounted equipment cavity and is converted into voltage signal input MCU microcontroller
Device 1,3 enable end 301 of power module are connect with a GPIO pin 102 of MCU microcontroller 1, control the opening of power module 3
And closing, 4 electric connection of power supply module 3 of fan, fan 4 are equipped with fan-status output end 401 and speed controling signal input terminal
402, fan-status output end 401 connects the TIMER1 pin 103 of MCU microcontroller 1, and the state of fan 4 is managed by TIMER1
Foot 103 feeds back to MCU microcontroller 1, and speed controling signal input terminal 402 connects the TIMER2 pin 104 of MCU microcontroller 1,
MCU microcontroller 1 changes speed controling signal duty ratio according to temperature change and controls 4 revolving speed of fan.
Further, the temperature element in temperature detecting module 2 uses thermistor 202.
Further, the square wave that MCU microcontroller 1 can be changed by TIMER2 pin 104 to 4 output duty cycle of fan.
MCU microcontroller 1 every 5S by temperature detecting module 2 detect mobile unit cavity temperature whether be greater than 65 degree or
Whether primary processor junction temperature is greater than 95 degree, and the variation of cavity temperature T will lead to 202 change in resistance of thermistor, and temperature signal is defeated
The voltage of outlet 201 can also change therewith.When being embodied in cavity temperature raising, 201 voltage of temperature signal output end becomes smaller,
When otherwise cavity temperature reduces, 201 voltage of temperature signal output end is increased.
When 201 voltage of temperature signal output end is reduced to certain threshold value, GPIO pin 102 exports high level, power module
3 open, and fan 4 is started to work.When initial, the speed controling signal that 1 output duty cycle of MCU microcontroller is 0.3, revolving speed control
Inversely, function representation is D=0.3+ β (T), i.e. cavity temperature T is higher for signal and temperature voltage signal, temperature voltage letter
Number lower, duty ratio is bigger.Fan 4 revolving speed VFAN and the proportional VFAN=a of speed controling signal duty ratio D (D).
When detecting fan-status abnormal signal, the GPIO pin 102 of MCU microcontroller 1 exports low level, electricity in time
Source module 3 is closed, and fan 4 stops working, while exporting fan failure diagnostic message.
Claims (3)
1. a kind of adaptive radiator of mobile unit, it is characterised in that: including MCU microcontroller, temperature detecting module, power supply
Module and fan, the MCU microcontroller are provided with ADC pin, GPIO pin, TIMER1 pin and TIMER2 pin, institute
The temperature signal output end for the temperature detecting module stated is connected with the ADC pin of MCU microcontroller, and the power module makes
Energy end is connect with a GPIO pin of MCU microcontroller, and the control terminal of the fan passes through wire connecting power module, wind
Fan is equipped with fan-status output end and speed controling signal input terminal, and the fan-status output end connects MCU microcontroller
The TIMER1 pin of device, the TIMER2 pin of the speed controling signal input terminal connection MCU microcontroller, the MCU
Microcontroller changes speed controling signal duty ratio according to temperature change and controls rotation speed of the fan.
2. a kind of adaptive radiator of mobile unit as described in claim 1, it is characterised in that: the temperature detection mould
Temperature element in block uses thermistor.
3. a kind of adaptive radiator of mobile unit as described in claim 1, it is characterised in that: the MCU microcontroller
The square wave that device can be changed by TIMER2 pin to the fan output duty cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821486110.3U CN209022716U (en) | 2018-09-12 | 2018-09-12 | The adaptive radiator of mobile unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821486110.3U CN209022716U (en) | 2018-09-12 | 2018-09-12 | The adaptive radiator of mobile unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209022716U true CN209022716U (en) | 2019-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821486110.3U Active CN209022716U (en) | 2018-09-12 | 2018-09-12 | The adaptive radiator of mobile unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN209022716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109109616A (en) * | 2018-09-12 | 2019-01-01 | 延锋伟世通电子科技（上海）有限公司 | A kind of adaptive radiator of mobile unit |
| CN111897585A (en) * | 2020-09-30 | 2020-11-06 | 延锋伟世通电子科技（南京）有限公司 | Linux-based multi-hardware adaptation method |
-
2018
- 2018-09-12 CN CN201821486110.3U patent/CN209022716U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109109616A (en) * | 2018-09-12 | 2019-01-01 | 延锋伟世通电子科技（上海）有限公司 | A kind of adaptive radiator of mobile unit |
| CN111897585A (en) * | 2020-09-30 | 2020-11-06 | 延锋伟世通电子科技（南京）有限公司 | Linux-based multi-hardware adaptation method |
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