CN208571587U - A kind of radiator fan observation circuit - Google Patents
A kind of radiator fan observation circuit Download PDFInfo
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- CN208571587U CN208571587U CN201821193907.4U CN201821193907U CN208571587U CN 208571587 U CN208571587 U CN 208571587U CN 201821193907 U CN201821193907 U CN 201821193907U CN 208571587 U CN208571587 U CN 208571587U
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- radiator fan
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- power conversion
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Abstract
The utility model discloses a kind of radiator fan observation circuits; including power module, protection location, power conversion unit, radiator fan, tachometer, optical coupling module, controller and signal output unit; the power module is electrically connected with the protection location; the power conversion unit and the radiator fan are electrically connected with the protection location respectively, and the tachometer is configured at the revolving speed on the radiator fan and for monitoring the radiator fan；Wherein, the protection location includes the overcurrent protection module being sequentially connected in series, overvoltage protective module, polarity protection module and insulation blocking module, and the power module is electrically connected with the overcurrent protection module；The radiator fan is electrically connected with the overvoltage protective module.The radiator fan observation circuit of the utility model has the function of overcurrent, over-voltage, polarity and insulation blocking, while can be monitored to fan.
Description
Technical field
The utility model belongs to fan operational monitoring technical field, and in particular to a kind of radiator fan observation circuit.
Background technique
Radiator fan has a single function at present, and no monitoring function is usually breaking down, or even after stopping operating, can not obtain
Know, fan failure can only be known by temperature sensor sense ambient temperature or the temperature of radiating element, and this mode is held
Easily thermal component is formed and is damaged, it is serious to cause the accidents such as fire.
Utility model content
The purpose of this utility model is that: it has a single function, for radiator fan exists in the prior art without monitoring function
Problem provides a kind of radiator fan observation circuit, can monitor the rotation situation of radiator fan, and then judges the event of fan
Situations such as barrier, service life.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
A kind of radiator fan observation circuit, including power module, protection location, power conversion unit, radiator fan, revolving speed
Meter, optical coupling module, controller and signal output unit, the power module is electrically connected with the protection location, described
Power conversion unit and the radiator fan are electrically connected with the protection location respectively, and the tachometer is configured at described
Radiator fan on and the revolving speed for monitoring the radiator fan；
Wherein, the protection location includes the overcurrent protection module being sequentially connected in series, overvoltage protective module, polarity guarantor
Shield module and insulation blocking module, the power module are electrically connected with the overcurrent protection module；The radiator fan
It is electrically connected with the overvoltage protective module；
The power conversion unit includes the first power conversion module and second source conversion module, first electricity
The input terminal of source conversion module is electrically connected with the polarity protection module, the input terminal of the second source conversion module with
The insulation blocking module electrical connection；The input of the output end of first power conversion module and the optical coupling module
End connection, the output end of the second source conversion module are electrically connected with the output end of the optical coupling module, the light
The input terminal of coupling module is also connected with the tachometer, and the output end of the optical coupling module is also connected with the controller；
The controller is electrically connected with the signal output unit.
Further, third electricity is also connected between the second source conversion module and the insulation blocking module
Source conversion module.
Further, the power module is 24V power supply, and first power conversion module is converted to using 24V
The power conversion chip of 12V, the second source conversion chip is converted to the power conversion chip of 3.3V using 5V, described
Third power conversion chip is converted to the power conversion chip of 5V using 24V.
Further, memory module and data download port is also respectively connected in the controller.
Further, the signal output unit includes the warning lamp being separately connected with controller and dry contact module.
By adopting the above-described technical solution, the beneficial effects of the utility model are:
The radiator fan observation circuit of the utility model can carry out real-time monitoring to rotation speed of the fan by tachometer,
When situations such as stopping fan rotation, Caton 2-3 seconds or abnormal revolving speed occurs, monitoring revolving speed is able to pass through the controller to export
Signal；Be provided with protection location simultaneously, overcurrent, overvoltage protection realized to fan and power supply, to power supply realize polarity protection with
And insulation blocking, so that fan and power supply are more safe and reliable.
Detailed description of the invention
Fig. 1 is the functional block diagram of the radiator fan observation circuit of the utility model.
Appended drawing reference: 100- power module, 200- protection location, 201- overcurrent protection module, 202- overvoltage protective module,
203- polarity protection module, 204- insulation blocking module, 300- power conversion unit, the first power conversion module of 301-, 302-
Second source conversion module, 303- third power conversion module, 400- radiator fan, 500- tachometer, 600- optical coupling module,
700- controller, 701- memory module, 702- data download port 702,800- signal output unit, 801- dry contact module,
802- warning lamp.
Specific embodiment
Referring to Fig.1, the utility model discloses a kind of radiator fan observation circuits, including power module 100, protection location
200, power conversion unit 300, radiator fan 400, tachometer 500, optical coupling module 600, controller 700 and signal output unit
800, power module 100 is electrically connected with protection location 200, power conversion unit 300 and radiator fan 400 respectively with protection location
200 electrical connections, tachometer 500 are configured at the revolving speed on radiator fan 400 and for monitoring radiator fan 400.The present embodiment
In, power module 100 uses 24V DC power supply, supplies power supply to protection location 200 by power module 100.
Wherein, protection location 200 includes the overcurrent protection module 201 being sequentially connected in series, overvoltage protective module 202, pole
Property protective module 203 and insulation blocking module 204, power module 100 are electrically connected with overcurrent protection module 201；Radiator fan
400 are electrically connected with overvoltage protective module 202.Overcurrent protection module 201, overvoltage protective module 202, polarity protection module 203 with
And insulation blocking module 204 can realize that the present embodiment is not specifically described using conventional circuit.Radiator fan 400
By overcurrent protection module 201 and overvoltage protective module 202 overcurrent, overvoltage protection can be carried out to it.
Power conversion unit 300 includes the first power conversion module 301 and second source conversion module 302, the first power supply
The input terminal of conversion module 301 is electrically connected with polarity protection module 203, the input terminal of second source conversion module 302 be isolated
Protective module 204 is electrically connected.It can by overcurrent protection module 201, overvoltage protective module 202 and polarity protection module 203
Overcurrent protection, overvoltage protection and polarity protection are carried out to the first power conversion module 301.Pass through overcurrent protection module 201, mistake
Press protective module 202, polarity protection module 203 and light-coupled isolation protective module 204 can be to second source conversion module
302, third power conversion module 303 carries out overcurrent protection, overvoltage protection, polarity protection and insulation blocking.First power supply turns
The output end of mold changing block 301 is connect with the input terminal of optical coupling module 600, the output end and optocoupler of second source conversion module 302
The output end of module 600 is electrically connected, and the input terminal of optical coupling module 600 is also connected with tachometer 500, the output end of optical coupling module 600
It is also connected with controller 700.The conversion of third power supply is also connected between second source conversion module 302 and insulation blocking module 204
Module 303, the first power conversion module 301 are converted to the power conversion chip of 12V using 24V, and second source conversion chip is adopted
The power conversion chip of 3.3V is converted to 5V, third power conversion chip is converted to the power conversion chip of 5V using 24V.
It can real-time monitor the revolving speed of radiator fan 400 by tachometer 500, and be isolated by optical coupling module 600 defeated
Enter to controller 700, controller 700 is compared according to the revolving speed in setting time with the rated speed of setting, to judge wind
Whether the normal operation of fan；And under fan rated speed, according to pulse and fan fixed rotating speed value, timing calculates fan circle
Number, such as the circle number of one hour of setting, the time or circle number (power-off can store) that software records fan operates normally, when any
Fan numerical value reaches setting value (setting value according to determine after experimental calculation), i.e., fan reaches service life maximum value.Controller 700 with
Signal output unit 800 is electrically connected, and when fan breaks down or fan reaches service life maximum value, can pass through controller 700
Output unit output signal is controlled, is warned or is prompted.And controller 700 realizes the software journey of fan-status necessary for monitoring
Sequence can be realized by conventional program, therefore software program is not within the protection scope of the present utility model.
Memory module 701 and data download port, memory module is also respectively connected in the controller 700 of the utility model
701 can store fan-status record, including normal operation, exception, failure etc. record；And data download port can then be said
Storage record is downloaded.
The signal output unit of the utility model includes the warning lamp 802 and dry contact mould being separately connected with controller 700
Block 801 can realize warning function in fan failure by warning lamp 802.
Claims (5)
1. a kind of radiator fan observation circuit, which is characterized in that including power module, protection location, power conversion unit, heat dissipation
Fan, tachometer, optical coupling module, controller and signal output unit, the power module are electrically connected with the protection location
It connects, the power conversion unit and the radiator fan are electrically connected with the protection location respectively, the tachometer
It is configured at the revolving speed on the radiator fan and for monitoring the radiator fan；
Wherein, the protection location includes the overcurrent protection module being sequentially connected in series, overvoltage protective module, polarity protection mould
Block and insulation blocking module, the power module are electrically connected with the overcurrent protection module；The radiator fan and institute
The overvoltage protective module electrical connection stated；
The power conversion unit includes the first power conversion module and second source conversion module, and first power supply turns
Mold changing block input terminal be electrically connected with the polarity protection module, the input terminal of the second source conversion module with it is described
Insulation blocking module electrical connection；The input terminal of the output end of first power conversion module and the optical coupling module connects
It connects, the output end of the second source conversion module is electrically connected with the output end of the optical coupling module, the optocoupler mould
The input terminal of block is also connected with the tachometer, and the output end of the optical coupling module is also connected with the controller；
The controller is electrically connected with the signal output unit.
2. radiator fan observation circuit according to claim 1, which is characterized in that the second source conversion module with
Third power conversion module is also connected between the insulation blocking module.
3. radiator fan observation circuit according to claim 2, which is characterized in that the power module is 24V power supply,
First power conversion module is converted to the power conversion chip of 12V using 24V, and the second source conversion chip is adopted
The power conversion chip of 3.3V is converted to 5V, the third power conversion chip is converted to the power supply conversion of 5V using 24V
Chip.
4. radiator fan observation circuit according to claim 1, which is characterized in that the controller is also respectively connected
Memory module and data download port.
5. radiator fan observation circuit according to claim 1, which is characterized in that the signal output unit include with
The warning lamp and dry contact module that controller is separately connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193907.4U CN208571587U (en) | 2018-07-26 | 2018-07-26 | A kind of radiator fan observation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193907.4U CN208571587U (en) | 2018-07-26 | 2018-07-26 | A kind of radiator fan observation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208571587U true CN208571587U (en) | 2019-03-01 |
Family
ID=65448120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821193907.4U Active CN208571587U (en) | 2018-07-26 | 2018-07-26 | A kind of radiator fan observation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208571587U (en) |
-
2018
- 2018-07-26 CN CN201821193907.4U patent/CN208571587U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Pei Inventor after: Liu Tingting Inventor after: Li Xianglin Inventor after: Nie Yong Inventor before: He Chunlin Inventor before: Liu Tingting Inventor before: Li Xianglin Inventor before: Nie Yong |
|
| CB03 | Change of inventor or designer information | ||
| CP03 | Change of name, title or address |
Address after: No. 46430, Xinyun Industrial Road, Xinjin District, Chengdu, Sichuan Province Patentee after: Sichuan Tenghua Zhikong Technology Co.,Ltd. Address before: No. 469, Qingyun North Road, Xinjin new material industry functional zone, Chengdu, Sichuan 611430 Patentee before: XINJIN THZK TECH Co.,Ltd. |
|
| CP03 | Change of name, title or address |