CN209025877U - A kind of mobile unit fan rotation speed control apparatus - Google Patents
A kind of mobile unit fan rotation speed control apparatus Download PDFInfo
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- CN209025877U CN209025877U CN201821567482.9U CN201821567482U CN209025877U CN 209025877 U CN209025877 U CN 209025877U CN 201821567482 U CN201821567482 U CN 201821567482U CN 209025877 U CN209025877 U CN 209025877U
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- fan
- power supply
- supply module
- mcu microcontroller
- rotation speed
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- Control Of Electric Motors In General (AREA)
Abstract
A kind of mobile unit fan rotation speed control apparatus, including MCU microcontroller, fan power supply module and fan, the voltage control signal end output of MCU microcontroller is connected in fan power supply module, control the output voltage height of fan power supply module, fan is electrically connected fan power supply module, fan power supply module is equipped with power supply diagnostic signal output end, and power supply diagnostic signal output end is connected on MCU microcontroller, and MCU microcontroller monitors the operating status of fan by power supply diagnostic signal output end.The fan rotation speed control apparatus controls the output voltage of fan power supply module by the MCU microcontroller of mobile unit, realize that rotation speed of the fan is adjusted, reduce the operation power consumption and noise of fan, and it is realized by the power supply diagnostic signal of fan power supply module to the real time monitoring of fan operating status, improves system reliability.
Description
Technical field
The utility model relates to electricity field more particularly to mobile unit heat dissipation technology, especially a kind of mobile unit wind
Fan revolution speed control device.
Background technique
In the prior art, mobile unit controls its radiator fan electricity by voltage pulse (PWM) signal of adjustable pulse width
Source is switched on and off realization fan speed-regulating.In speed regulation process, by changing the high level time (t) of pwm signal at one
Duty ratio (D=t/T*100%) in period (T) changes fan work and stopping ratio, adjustment fan etc. within a certain period of time
Imitate speed.But the velocity equivalent is an equivalence value, not the real-time true velocity of fan, fan are practically in work and stop
Only in the toggling of state, this process will lead to fan operation noise and increase, and power consumption increases.
Summary of the invention
It is described this vehicle-mounted to set the purpose of this utility model is to provide a kind of mobile unit fan rotation speed control apparatus
Standby fan rotation speed control apparatus, the output voltage of fan power supply module is controlled by the MCU microcontroller of mobile unit, realizes wind
Rotational speed regulation is fanned, reduces the operation power consumption and noise of fan, and realize by the power supply diagnostic signal of fan power supply module
To the real time monitoring of fan operating status, system reliability is improved.
This mobile unit fan rotation speed control apparatus of the utility model, including MCU microcontroller, fan power supply module
And fan, the MCU microcontroller include signal input part and control signal output, the fan power supply module packet
Control signal input, power input, power output end and power supply diagnostic signal output end are included, wherein the MCU is micro-
The control signal output of controller is connect with the control signal input of the fan power supply module, the fan and wind
Fan the power output end connection of power module, the power supply diagnostic signal output end of fan power supply module and the letter of MCU microcontroller
The connection of number input terminal, MCU microcontroller control the output voltage height of fan power supply module, and MCU microcontroller is electric by fan
The operating status of the power supply diagnostic signal monitoring fan of source module output.
Further, temperature detecting module, the temperature detection are connected on the signal input part of the MCU microcontroller
Module monitors mobile unit cavity temperature is simultaneously converted into the voltage signal input MCU microcontroller.
The working principle of the utility model is: MCU microcontroller currently needs revolving speed according to fan, corresponding voltage is exported
Control signal changes its output voltage after giving fan power supply module, fan power supply module to receive control signal.Fan is supplied currently
Smooth working is carried out under piezoelectric voltage, when abnormal operation occurs in fan, fan power supply module can detect abnormal electric current
And voltage, and this signal is fed back to MCU microcontroller by power supply diagnostic signal output end, MCU microcontroller is according to anti-
Feedback signal carries out system reboot or shutdown processing.
Specifically, MCU microcontroller described in the utility model, fan power supply module and fan are all made of the prior art
In known solution, those skilled in the art understood, and details are not described herein.
The utility model compares with prior art, and effect is positive and apparent.The utility model is set by vehicle-mounted
The output voltage of standby MCU microcontroller control fan power supply module, realizes that rotation speed of the fan is adjusted, reduces the operation function of fan
Consumption and noise, and the real time monitoring to fan operating status is realized by the power supply diagnostic signal of fan power supply module, it improves
System reliability.
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 mobile unit fan rotation speed control apparatus of the utility model, including MCU microcontroller 1,
The output of voltage control signal end 101 of fan power supply module 2 and fan 3, MCU microcontroller 1 is connected to fan power supply module 2
On, the output voltage height of fan power supply module 2 is controlled, fan 3 is electrically connected fan power supply module 2, sets in fan power supply module 2
There is power supply diagnostic signal output end 201, power supply diagnostic signal output end 201 is connected on MCU microcontroller 1, MCU microcontroller
1 monitors the operating status of fan 3 by power supply diagnostic signal output end 101.
Further, temperature detecting module 4 is connected on MCU microcontroller 1, temperature detecting module 4 monitors vehicle-mounted equipment cavity
Interior temperature is simultaneously converted into voltage signal input MCU microcontroller 1.
1 output voltage control signal of MCU microcontroller is to fan power supply module 2, after fan power supply module 2 receives signal
Adjust output voltage, the stable operation under current voltage of fan 3；If MCU microcontroller 1 receives adjustment 3 revolving speed of fan request
When, carry out voltage adjustment；If you do not need to then fan 3 continues even running for adjustment；If fan power supply module 2 detects output
Voltage or electric current are more than the normal working value of fan 3, will issue power supply diagnostic signal to MCU microcontroller 1, MCU microcontroller
The power supply of fan is restarted to fan 3 or stopped to device 1.
Claims (2)
1. a kind of mobile unit fan rotation speed control apparatus, including MCU microcontroller, fan power supply module and fan, described
MCU microcontroller includes signal input part and control signal output, and the fan power supply module includes control signal
Input terminal, power input, power output end and power supply diagnostic signal output end, it is characterised in that: the MCU microcontroller
Control signal output connect with the control signal input of the fan power supply module, the fan and fan power supply
The power output end of module connects, and the power supply diagnostic signal output end of fan power supply module and the signal of MCU microcontroller input
End connection.
2. mobile unit fan rotation speed control apparatus as described in claim 1, it is characterised in that: the MCU microcontroller
Signal input part is connected with temperature detecting module, the temperature detecting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821567482.9U CN209025877U (en) | 2018-09-26 | 2018-09-26 | A kind of mobile unit fan rotation speed control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821567482.9U CN209025877U (en) | 2018-09-26 | 2018-09-26 | A kind of mobile unit fan rotation speed control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209025877U true CN209025877U (en) | 2019-06-25 |
Family
ID=66904180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821567482.9U Active CN209025877U (en) | 2018-09-26 | 2018-09-26 | A kind of mobile unit fan rotation speed control apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209025877U (en) |
-
2018
- 2018-09-26 CN CN201821567482.9U patent/CN209025877U/en active Active
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