CN202883417U - Cooling fan fault alarm circuit structure - Google Patents
Cooling fan fault alarm circuit structure Download PDFInfo
- Publication number
- CN202883417U CN202883417U CN 201220279685 CN201220279685U CN202883417U CN 202883417 U CN202883417 U CN 202883417U CN 201220279685 CN201220279685 CN 201220279685 CN 201220279685 U CN201220279685 U CN 201220279685U CN 202883417 U CN202883417 U CN 202883417U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- detecting circuit
- rotating speed
- cooling fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a cooling fan fault alarm circuit structure which comprises a power supply circuit, a rotating speed detecting circuit, a temperature detecting circuit and an alarm circuit, wherein the power supply circuit supplies working power supply to the rotating speed detecting circuit, the temperature detecting circuit and the alarm circuit. The rotating speed detecting circuit is connected with a cooling fan to be used for detecting a rotating state of the cooling fan, the temperature detecting circuit is connected with cooling fins of a power supply to detect the work temperature of the power supply, and the alarm circuit is connected with the rotating speed detecting circuit and the temperature detecting circuit to control power on and power off of the alarm circuit according to signals detected by the rotating speed detecting circuit and the temperature detecting circuit. In addition, when any one of the rotating speed detecting circuit and the temperature detecting circuit has output errors, the alarm circuit starts to work.
Description
Technical field
The utility model relates to a kind of radiation fan testing circuit, relates in particular to the radiation fan failure alarm circuit structure of power supply unit in a kind of desktop computer.
Background technique
The power supply unit of extensively installing in the host computer at present, electric power is provided for the running of each assembly of computer, it is constituent element important in the computer, power supply unit is because power consumption is larger, larger heating is arranged, need radiation fan in time to cool off, if fan work is undesired, power supply just has risk overheated even that burn.Yet fan is as a mechanical part, it is the lower element of reliability in the power supply unit, but whether working properly it is extremely important again, the operation irregularity of radiation fan is not only made troubles to the user, serious potential safety hazard is more arranged, thereby, the working condition of radiation fan is necessary that design circuit carries out special detecting and affirmation, and in operation irregularity, gives the user warning.
The model utility content
The utility model provides a kind of radiation fan failure alarm circuit structure for the problem of present existence.
For realizing above-mentioned target, the utility model uses following technological scheme:
A kind of radiation fan failure alarm circuit structure, comprise power supply circuits, speed detect circuit, temperature sensing circuit and warning circuit, described power supply circuits provide the working power of speed detect circuit, temperature sensing circuit, warning circuit, described speed detect circuit is connected with radiation fan, in order to detect the radiation fan rotary state; Described temperature sensing circuit links to each other with the radiating fin of power supply unit, detect the operating temperature of power supply, described warning circuit is connected with temperature sensing circuit with speed detect circuit, controls described warning circuit break-make with the signal that detects according to speed detect circuit and temperature sensing circuit; And working as both has arbitrary road output abnormality, and described warning circuit is namely worked.
Further, described temperature sensing circuit is connected with warning circuit.
Further, described speed detect circuit is connected with warning circuit.
Further, described speed detect circuit is connected with radiation fan, and whether detect the radiation fan rotation normal.
Further, the radiating fin of described temperature sensing circuit and power supply unit links to each other, and whether the temperature that detects power supply device is normal.
Further, described power supply circuits are connected with power supply unit.
Further, described power supply circuits are connected with speed detect circuit, testing circuit, warning circuit connects, and operating current are provided for speed detect circuit, testing circuit connection and warning circuit.
Further, described speed detect circuit is the square wave testing circuit, detects from the rotating speed square wave of fan output.
Further, described temperature sensing circuit is NTC thermistor temperature detecting circuit.
Further, described warning circuit is sound light alarming circuit, is comprised of buzzer and LED lamp etc.
Further, when described radiation fan worked well, described speed detect circuit can detect tach signal, is output as normal signal.
Further, when described radiation fan turns round when unusual, described speed detect circuit can't detect tach signal, or abnormal signal, is output as abnormal signal.
Further, when described temperature sensing circuit detects temperature when normal, the output normal signal.
Further, when described temperature sensing circuit detects temperature anomaly, the output abnormality signal.
Further, when described temperature sensing circuit or speed detect circuit output abnormality signal, warning circuit is reported to the police.
Further, it is inner that the foregoing circuit structure not only can be installed in the desktop computer power supply unit, can also directly be integrated in radiation fan inside.
The core content of the utility model design philosophy is: the working signal by radiation fan that speed detect circuit detects is controlled described warning circuit; when radiation fan is working properly; warning circuit disconnects; not having reports to the police sends; cross when slow when fan stall or rotating speed, chimes of doom is sent in the warning circuit conducting; reminding user, thus cause thermal damage did not occur in protection computer all parts.
The utility model compared with prior art has the following advantages:
(1) when the radiation fan of computer power source supply device is working properly, not alarm of warning circuit; Do not affect user's normal use, unusual when rotation speed of the fan, stall or rotating speed are crossed when slow, and warning circuit starts, and sends warning, and reminding user is in time processed the radiation system fault, plays the effect of protection power source supply.
(2) temperature sensing circuit can detect the operating temperature of system, can utilize this signal that rotation speed of the fan is regulated, and reaches good cooling-down effect and energy-saving effect.
Description of drawings
Fig. 1 is the utility model circuit block diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Present embodiment, shown in Fig. 1, a kind of radiation fan failure alarm circuit structure comprises power supply circuits 1, speed detect circuit 2, temperature sensing circuit 3 and warning circuit 4.
Described temperature sensing circuit 3 is connected connection with warning circuit, described speed detect circuit 2 is connected connection with warning circuit, described speed detect circuit 2 is connected with radiation fan 5, the radiating fin 6 of described temperature sensing circuit 3 and power supply unit 7 links to each other, described power supply circuits 1 are connected with power supply unit 7, and described power supply circuits 1 are connected 3 with speed detect circuit 2, testing circuit, warning circuit connects 4.
Described speed detect circuit 2 is the square wave testing circuit, and described temperature sensing circuit 3 is NTC thermistor temperature detecting circuit, and described warning circuit 4 is sound light alarming circuit, is comprised of buzzer and LED lamp etc.
The above, it only is the preferred embodiment of the utility model structure, be not that technical scope of the present utility model is imposed any restrictions, so any trickle modification that every foundation technical spirit of the present utility model is done above embodiment still belongs to the scope of technical solutions of the utility model.
Claims (1)
1. radiation fan failure alarm circuit structure, it is characterized in that: comprise power supply circuits, speed detect circuit, temperature sensing circuit and warning circuit, described temperature sensing circuit is connected with warning circuit, and described temperature sensing circuit is NTC thermistor temperature detecting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279685 CN202883417U (en) | 2012-06-14 | 2012-06-14 | Cooling fan fault alarm circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279685 CN202883417U (en) | 2012-06-14 | 2012-06-14 | Cooling fan fault alarm circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883417U true CN202883417U (en) | 2013-04-17 |
Family
ID=48074851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220279685 Expired - Fee Related CN202883417U (en) | 2012-06-14 | 2012-06-14 | Cooling fan fault alarm circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883417U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240413A (en) * | 2013-06-24 | 2014-12-24 | 中国计量学院 | Cooling fan system alarm circuit |
| CN112600481A (en) * | 2020-12-10 | 2021-04-02 | 北京航星机器制造有限公司 | Single-phase motor control device for security check machine |
-
2012
- 2012-06-14 CN CN 201220279685 patent/CN202883417U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240413A (en) * | 2013-06-24 | 2014-12-24 | 中国计量学院 | Cooling fan system alarm circuit |
| CN112600481A (en) * | 2020-12-10 | 2021-04-02 | 北京航星机器制造有限公司 | Single-phase motor control device for security check machine |
| CN112600481B (en) * | 2020-12-10 | 2024-04-05 | 北京航星机器制造有限公司 | Single-phase motor control device for security inspection machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104660440A (en) | Blade server management system and control method thereof | |
| CN207216449U (en) | Staircase switch board temperature-adjusting device | |
| CN202883417U (en) | Cooling fan fault alarm circuit structure | |
| CN203503964U (en) | Water-cooled laser power supply | |
| CN101752948B (en) | Detection and protection device for motor anomalies and method thereof | |
| CN103605386A (en) | Electric appliance control cabinet capable of automatic heat dissipation | |
| CN102679648A (en) | Intelligent heat pump system controller | |
| US20140184126A1 (en) | Fan control circuit | |
| CN104577988A (en) | Motor protection device based on thermoelectric conversion and power supply method of motor protection device | |
| CN207301869U (en) | A kind of separate fan controller for machine box for server | |
| CN201185007Y (en) | Control circuit for radiating fan of computer power supplier | |
| KR101974585B1 (en) | Monitoring system for fan operating | |
| CN203189301U (en) | Overheat protection device and electronic device with overheat protection function | |
| CN203276144U (en) | Temperature control module of embedded computer | |
| CN101132680A (en) | Water-cooling radiating device with alarm to exception status and its alarm method | |
| TWM296415U (en) | Intelligent power supply | |
| CN204256726U (en) | CPCI ambient chassis supervisory system | |
| CN204756839U (en) | Intelligence heat dissipation type UV -LED equipment | |
| CN104199529A (en) | Intelligent computerized fan control method | |
| CN207921188U (en) | A kind of shoe plate monitoring device and a kind of explosion-proof vehicle | |
| CN204128709U (en) | For the device for monitoring temperature of motor | |
| CN203193970U (en) | Lamp device with overheat protection function | |
| CN204514483U (en) | Transformer pile head protective cover temperature surveys monitor system | |
| CN207637072U (en) | Server storage device | |
| CN208571587U (en) | A kind of radiator fan observation circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20190614 |