CN202883417U - A cooling fan failure alarm circuit structure - Google Patents
A cooling fan failure alarm circuit structure Download PDFInfo
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- 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
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- 238000001816 cooling Methods 0.000 title claims description 17
- 238000001514 detection method Methods 0.000 claims abstract description 55
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 9
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
本实用新型公开了一种散热风扇故障报警电路结构,包括供电电路、转速检测电路、温度检测电路和报警电路,所述供电电路提供转速检测电路、温度检测电路、报警电路的工作电源,所述转速检测电路与散热风扇连接,用以检测散热风扇转动状态;所述温度检测电路与电源供应器的散热片相连,检测电源的工作温度,所述报警电路与转速检测电路和温度检测电路连接,以根据转速检测电路和温度检测电路检测到的信号而控制所述报警电路通断;且当两者有任一路输出异常,所述报警电路即工作。
The utility model discloses a heat dissipation fan fault alarm circuit structure, comprising a power supply circuit, a rotation speed detection circuit, a temperature detection circuit and an alarm circuit, wherein the power supply circuit provides working power for the rotation speed detection circuit, the temperature detection circuit and the alarm circuit, the rotation speed detection circuit is connected with the heat dissipation fan to detect the rotation state of the heat dissipation fan; the temperature detection circuit is connected with the heat sink of the power supply to detect the working temperature of the power supply, the alarm circuit is connected with the rotation speed detection circuit and the temperature detection circuit to control the on and off of the alarm circuit according to the signals detected by the rotation speed detection circuit and the temperature detection circuit; and when any one of the outputs of the two is abnormal, the alarm circuit works.
Description
技术领域 technical field
本实用新型涉及一种散热风扇检测电路,尤其涉及一种台式电脑中电源供应器的散热风扇故障报警电路结构。 The utility model relates to a heat dissipation fan detection circuit, in particular to a heat dissipation fan failure alarm circuit structure of a power supply in a desktop computer.
背景技术 Background technique
目前电脑主机中广泛装设的电源供应器,给电脑各个组件的运作提供电力,是电脑中重要的组成部分,电源供应器因为功耗较大,有较大发热,需要散热风扇及时冷却,如果风扇工作不正常,电源就有过热甚至烧毁的风险。然而风扇作为一个机械部件,是电源供应器中可靠性较低的元件,但其工作正常与否又极端重要,散热风扇的工作异常不仅给用户带来不便,更有严重的安全隐患,因而,对散热风扇的工作状况有必要设计电路进行专门的侦测和确认,并在工作异常的时候给予用户警告。 At present, the power supply is widely installed in the computer mainframe, which provides power for the operation of each component of the computer. If the fan is not working properly, the power supply runs the risk of overheating or even burning out. However, as a mechanical component, the fan is a component with low reliability in the power supply, but whether it works normally or not is extremely important. The abnormal operation of the cooling fan not only brings inconvenience to the user, but also poses a serious safety hazard. Therefore, It is necessary to design a circuit for special detection and confirmation of the working status of the cooling fan, and to give a warning to the user when the work is abnormal.
实用新型内容 Utility model content
本实用新型针对目前存在的问题,提供 一种散热风扇故障报警电路结构。 The utility model aims at the existing problems at present, and provides a cooling fan failure alarm circuit structure.
为实现上述目标,本实用新型使用以下技术方案: In order to achieve the above goals, the utility model uses the following technical solutions:
一种散热风扇故障报警电路结构,包括供电电路、转速检测电路、温度检测电路和报警电路,所述供电电路提供转速检测电路、温度检测电路、报警电路的工作电源,所述转速检测电路与散热风扇连接,用以检测散热风扇转动状态; 所述温度检测电路与电源供应器的散热片相连,检测电源的工作温度,所述报警电路与转速检测电路和温度检测电路连接,以根据转速检测电路和温度检测电路检测到的信号而控制所述报警电路通断;且当两者有任一路输出异常,所述报警电路即工作。 A cooling fan failure alarm circuit structure, including a power supply circuit, a speed detection circuit, a temperature detection circuit and an alarm circuit, the power supply circuit provides the speed detection circuit, temperature detection circuit, and alarm circuit. The fan connection is used to detect the rotation state of the cooling fan; the temperature detection circuit is connected to the heat sink of the power supply to detect the working temperature of the power supply, and the alarm circuit is connected to the speed detection circuit and the temperature detection circuit to detect the temperature according to the speed detection circuit. and the signal detected by the temperature detection circuit to control the on-off of the alarm circuit; and when any output of the two is abnormal, the alarm circuit will work.
进一步的,所述温度检测电路和报警电路连接。 Further, the temperature detection circuit is connected to the alarm circuit.
进一步的,所述转速检测电路和报警电路连接。 Further, the speed detection circuit is connected to the alarm circuit.
进一步的,所述转速检测电路与散热风扇连接,检测散热风扇旋转是否正常。 Further, the speed detection circuit is connected to the cooling fan to detect whether the cooling fan rotates normally.
进一步的,所述温度检测电路和电源供应器的散热片相连,检测电源供电器的温度是否正常。 Further, the temperature detection circuit is connected to the heat sink of the power supply to detect whether the temperature of the power supply is normal.
进一步的,所述供电电路与电源供应器连接。 Further, the power supply circuit is connected to a power supply.
进一步的,所述供电电路与转速检测电路、检测电路连接、报警电路连接,给转速检测电路、检测电路连接和报警电路提供工作电流。 Further, the power supply circuit is connected to the speed detection circuit, the detection circuit connection, and the alarm circuit, and provides working current to the speed detection circuit, the detection circuit connection, and the alarm circuit.
进一步的,所述转速检测电路为方波检测电路,检测从风扇输出的转速方波。 Further, the speed detection circuit is a square wave detection circuit, which detects the square wave of speed output from the fan.
进一步的,所述温度检测电路为NTC 热敏电阻测温线路。 Further, the temperature detection circuit is an NTC thermistor temperature measurement circuit.
进一步的,所述报警电路为声光报警电路,由蜂鸣器和LED灯等组成。 Further, the alarm circuit is an audible and visual alarm circuit, which is composed of a buzzer and LED lights.
进一步的,当所述散热风扇运转正常时,所述转速检测电路可以检测到转速信号,输出为正常信号。 Further, when the cooling fan is operating normally, the rotational speed detection circuit can detect the rotational speed signal and output it as a normal signal.
进一步的,当所述散热风扇运转异常时,所述转速检测电路检测不到转速信号,或信号异常,输出为异常信号。 Further, when the cooling fan is running abnormally, the speed detection circuit cannot detect the speed signal, or the signal is abnormal, and the output is an abnormal signal.
进一步的,当所述温度检测电路检测到温度正常时,输出正常信号。 Further, when the temperature detection circuit detects that the temperature is normal, it outputs a normal signal.
进一步的,当所述温度检测电路检测到温度异常时,输出异常信号。 Further, when the temperature detection circuit detects an abnormal temperature, it outputs an abnormal signal.
进一步的,当所述温度检测电路或转速检测电路输出异常信号时,报警电路报警。 Further, when the temperature detection circuit or the rotation speed detection circuit outputs an abnormal signal, the alarm circuit will alarm. the
进一步的,上述电路结构不仅可以安装在台式电脑电源供应器内部,还可以直接集成在散热风扇内部。 Furthermore, the above circuit structure can not only be installed inside the desktop computer power supply, but also can be directly integrated inside the cooling fan.
本实用新型设计思想的核心内容在于:由转速检测电路所检测到散热风扇的工作信号控制所述报警电路,当散热风扇工作正常时,报警电路断开,不会有报警发出,当风扇停转或者转速过慢时,报警电路导通,发出报警声,提醒用户,从而保护电脑各个部件不发生过热损坏。 The core content of the design concept of the present utility model is: the operating signal of the heat dissipation fan detected by the rotating speed detection circuit controls the alarm circuit. Or when the rotating speed is too slow, the alarm circuit will be turned on, and an alarm sound will be issued to remind the user, so as to protect the various components of the computer from overheating and damage.
本实用新型与现有技术相比,有如下优点: Compared with the prior art, the utility model has the following advantages:
(1)当电脑电源供应器的散热风扇工作正常时,报警电路不警报;不影响用户的正常使用,当风扇转速异常,停转或者转速过慢时,报警电路启动,发出报警,提醒用户及时处理散热系统故障,起到保护电源供应器的效果。 (1) When the cooling fan of the computer power supply is working normally, the alarm circuit will not alarm; it will not affect the normal use of the user. Troubleshoot cooling system failures to protect the power supply.
(2)温度检测电路可以检测到系统的工作温度,可利用此信号对风扇转速进行调节,达到良好的降温效果和节能效果。 (2) The temperature detection circuit can detect the working temperature of the system, and this signal can be used to adjust the fan speed to achieve a good cooling effect and energy saving effect.
附图说明 Description of drawings
图1 是本实用新型电路原理方框图。 Fig. 1 is a block diagram of the utility model circuit principle.
具体实施方式 Detailed ways
下面结合附图与具体实施方式对本实用新型作进一步描述。 The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
本实施例,如图1 所示,一种散热风扇故障报警电路结构,包括供电电路1、转速检测电路2、温度检测电路3和报警电路4。 In this embodiment, as shown in FIG. 1 , a cooling fan failure alarm circuit structure includes a power supply circuit 1, a rotational speed detection circuit 2, a temperature detection circuit 3 and an alarm circuit 4.
所述温度检测电路3和报警电路4连接,所述转速检测电路2和报警电路4连接,所述转速检测电路2与散热风扇5连接,所述温度检测电路3和电源供应器7的散热片6相连,所述供电电路1与电源供应器7连接,所述供电电路1与转速检测电路2、检测电路连接3、报警电路连接4。 The temperature detection circuit 3 is connected to the alarm circuit 4, the speed detection circuit 2 is connected to the alarm circuit 4, the speed detection circuit 2 is connected to the cooling fan 5, and the temperature detection circuit 3 is connected to the heat sink of the power supply 7. 6, the power supply circuit 1 is connected to the power supply 7, the power supply circuit 1 is connected to the rotational speed detection circuit 2, the detection circuit is connected to 3, and the alarm circuit is connected to 4.
所述转速检测电路2为方波检测电路,所述温度检测电路3为NTC 热敏电阻测温线路,所述报警电路4为声光报警电路,由蜂鸣器和LED灯等组成。 The rotating speed detection circuit 2 is a square wave detection circuit, the temperature detection circuit 3 is an NTC thermistor temperature measuring circuit, and the alarm circuit 4 is an acousto-optic alarm circuit consisting of a buzzer and an LED lamp.
以上所述,仅是本实用新型结构较佳实施例而已,并非对本实用新型的技术范围作任何限制,故凡是依据本实用新型的技术实质对以上实施例所作的任何细微修改仍属于本实用新型技术方案的范围。 The above is only a preferred embodiment of the structure of the utility model, and does not limit the technical scope of the utility model, so any minor modifications made to the above embodiments according to the technical essence of the utility model still belong to the utility model Scope of technical solutions.
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CN 201220279685 CN202883417U (en) | 2012-06-14 | 2012-06-14 | A cooling fan failure alarm circuit structure |
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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 |
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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 |
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Granted publication date: 20130417 Termination date: 20190614 |