Intelligent cooling fan control panel with isolated power supply

Abstract

The utility model relates to an intelligent cooling fan control panel with an isolation power supply, which comprises an isolation power supply unit, an isolation circuit unit, a fan interface unit, an MCU (Microprogrammed Control Unit) control unit and a power supply control unit, the isolation circuit unit is electrically connected with the MCU control unit, the isolation circuit unit is used for isolating communication signals, the MCU control unit is used for achieving temperature collection, IPMB communication and fan rotating speed control, and a temperature sensor unit is installed on the MCU control unit. The intelligent cooling fan control panel is reasonable in design, has the advantages of high stability, intelligent control, remote management capability and the like, and is suitable for cooling fan control in various reinforced cases and complex environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to control panel design technical field, specifically, relate to a take the intelligent heat dissipation fan control panel of isolated power supply. BACKGROUND

[0002] At present, when the greenhouse seedling is raised, the seedling is often irrigated in the root area, and the root area irrigation is an agricultural irrigation method, which directly delivers water to the root area of the plant to maximize the provision of water and nutrients, which can reduce water waste and improve crop yield.

[0003] In various reinforced servers or industrial computers, the current heat dissipation fan control panel has the following problems:

[0004] 1. The power supply and main circuit of the traditional control panel are not isolated, and there is a risk of electric leakage and signal interference;

[0005] 2. Lack of intelligent temperature control function, unable to automatically adjust the speed according to the environmental temperature;

[0006] 3. Remote control function is missing, manual on-site operation is required;

[0007] 4. The speed regulation mode is single, and multiple control modes cannot be compatible.

[0008] Therefore, in view of the above problems, the applicant has the necessity to design an intelligent heat dissipation fan control panel with isolated power supply to solve the problems. CONTENT OF THE UTILITY MODEL

[0009] The utility model aims at providing an intelligent heat dissipation fan control panel with isolated power supply, solving the problem of no isolation, electric leakage and interference of the existing heat dissipation fan control panel circuit, and supporting local and remote control of the speed of the heat dissipation fan.

[0010] In order to solve the above technical problems, the utility model provides an intelligent heat dissipation fan control panel with isolated power supply, which comprises: an isolated power supply unit, the isolated power supply unit is used for isolating the input power supply from the fan control panel, the isolated power supply unit is electrically connected with a fan interface unit and an MCU control unit, an isolation circuit unit, the isolation circuit unit is electrically connected with the MCU control unit, the isolation circuit unit is used for isolating communication signals, the MCU control unit is used for realizing temperature acquisition, IPMB communication and fan speed control, a temperature sensor unit is installed on the MCU control unit, the MCU control unit is electrically connected with the fan interface unit, the fan interface unit is used for controlling the speed of the heat dissipation fan, and the temperature sensor unit is used for collecting environmental temperature data in real time.

[0011] Preferably, the isolation power unit adopts a CFDM50 series isolation power module, and the isolation power unit supports a direct current 9-36V input.

[0012] Preferably, the isolation power unit can convert a direct current 12V for the wind control control panel, and the isolation power unit can support a 1500VDC voltage isolation.

[0013] Preferably, the MCU control unit adopts a high-performance microcontroller, supports I2C, ADC, PWM interface, and supports IPMB bus communication, the MCU control unit can communicate with the BMC unit in the case, receive the control command of the BMC unit and upload the fan speed and temperature data.

[0014] Preferably, the temperature sensor unit adopts a digital temperature sensor, and is connected with the MCU control unit through the I2C interface of the temperature sensor unit.

[0015] Preferably, the fan interface unit outputs a PWM square wave signal through the PWM controller in the MCU control unit, and can dynamically adjust the fan speed according to the temperature data and external control command.

[0016] Preferably, the isolation circuit unit adopts an I2C drive BUFFER chip NCA9511_DMSR.

[0017] The utility model discloses a beneficial effect is:

[0018] 1. The utility model discloses a leakage and coupling interference between the input power supply and the fan control panel can be isolated by the isolation power unit, can make it more stable work, prevents the interference caused by fan operation from spreading to other connected circuits.

[0019] 2. The utility model discloses a digital temperature sensor on board, can collect current environment temperature, realizes local intelligent fan control, can control the speed of the cooling fan according to temperature height.

[0020] 3. The utility model discloses an external isolation communication circuit unit, not only can communicate with the outside world, accepts external communication to control the speed of the cooling fan, and also can upload the speed of the current fan and the current temperature value to the case BMC control unit.

[0021] 4. The utility model discloses a MCU control unit adopts a high-performance microcontroller, supports I2C, ADC, PWM and a variety of interfaces, and supports IPMB bus communication, and has good compatibility.

[0022] In conclusion, the intelligent heat dissipation fan control panel of the utility model has the advantages of reasonable design, high stability, intelligent control, remote management capability and the like, and is suitable for heat dissipation fan control in various reinforced cases and complex environments. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be further explained in connection with the drawings and embodiments.

[0024] Figure 1 It is the circuit module diagram of the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0025] The utility model will be further explained in connection with the drawings and embodiments.

[0026] As Figure 1 The utility model discloses a kind of intelligent heat dissipation fan control panels with isolated power supply, it include: isolated power supply unit, isolated power supply unit is used to isolate input power supply with fan control panel, isolated power supply unit is electrically connected with fan interface unit and MCU control unit, isolation circuit unit, isolation circuit unit is electrically connected with MCU control unit, isolation circuit unit is used to isolate communication signal, MCU control unit is used to realize temperature real-time acquisition, IPMB communication and fan rotating speed control, temperature sensor unit is installed on MCU control unit, MCU control unit is electrically connected with fan interface unit, fan interface unit is used to control the rotating speed of heat dissipation fan, temperature sensor unit is used to acquire environmental temperature data in real time.

[0027] The fan control panel isolated power supply unit can adopt CFDM50 series isolated power supply module of Huayang Changfeng, isolated power supply module can support DC 9-36V input, can support different case power supply, isolated power supply unit can convert DC 12V to give wind control control panel use, this power module has isolation function, finally isolated power supply unit also supports 1500VDC voltage resistance isolation, avoids the coupling interference of fan control panel and case inner circuit board.

[0028] The MCU control unit of the fan control panel adopts high-performance microcontroller, for example, domestic Cortex-M3 kernel series MCU, supports I2C, ADC, PWM and multiple interfaces, supports IPMB bus communication, and has good compatibility, realizes temperature acquisition, IPMB communication, fan rotating speed control and the like in wind control control panel, can carry out remote communication with BMC unit in case, can receive control command of BMC unit in case and upload fan rotating speed and temperature data.

[0029] The temperature sensor unit adopts a digital temperature sensor, and is connected with the MCU control unit through an I2C interface, so that the MCU control unit can collect temperature information in time and accurately.

[0030] The fan interface unit of the fan control board adopts an internal PWM controller of the MCU control unit to output a PWM square wave signal, so that the rotating speed of the cooling fan can be conveniently controlled.

[0031] The isolation circuit unit of the fan control board adopts an I2C driving BUFFER chip NCA9511_DMSR, which can strengthen the driving capability and anti-interference capability of the I2C signal, increase the communication distance, and adapt to various different harsh environments.

[0032] Through the above structural design, the fan control board can be applied to the control of cooling fans in various reinforced cases and cases with special shapes, and has a built-in temperature sensor, so that the rotating speed of the cooling fan can be controlled according to the temperature in the case, local automatic control is realized, the IPMB bus is supported, remote communication with the BMC unit in the case can be realized, and the rotating speed of the cooling fan can be controlled by receiving the control command of the BMC unit.

[0033] Working principle: in design, the external power supply input is led to the fan interface unit and the MCU control unit for power supply after isolation by the isolation power supply unit, the MCU control unit outputs a PWM signal to control the rotating speed of the fan, and inputs and collects the rotating speed signal of the fan, at the same time, the MCU control unit collects the temperature parameter of the temperature sensor unit E through an I2C signal, and the MCU control unit communicates externally through the isolation circuit unit, can receive the fan control rotating speed signal, and can upload the current rotating speed and current temperature parameter signal of the fan, so that in use, the fan control board can be fixed in the case, the 9-36V DC power supply line is connected to the fan control board from the case, the IPMB communication cable of the case is connected to the communication interface of the fan control board, and then the signal instruction of the BMC unit of the case needs to be adapted in the control program of the MCU control unit, so that local and remote intelligent cooling fan rotating speed control can be realized.

[0034] According to the above ideal embodiment of the utility model, the related personnel can make various changes and modifications without deviating from the technical idea of the utility model according to the above description. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A smart cooling fan control board with isolated power supply, characterized in that, It comprises: An isolated power supply unit for isolating the input power supply from the fan control board, which is electrically connected with the fan interface unit and the MCU control unit; An isolation circuit unit electrically connected with the MCU control unit, which is used to isolate the communication signal; The MCU control unit is used to realize temperature collection, IPMB communication and fan speed control, and a temperature sensor unit is installed on the MCU control unit, which is electrically connected with the fan interface unit; The fan interface unit is used to control the speed of the cooling fan; The temperature sensor unit is used to collect real-time environmental temperature data.

2. The intelligent cooling fan control board with isolated power supply according to claim 1, wherein: The isolated power supply unit adopts CFDM50 series isolated power supply module, which supports DC 9-36V input.

3. The intelligent cooling fan control board with isolated power supply according to claim 1, wherein: The isolated power supply unit can convert DC 12V for the fan control board, and can support 1500VDC voltage isolation.

4. The intelligent cooling fan control board with isolated power supply according to claim 3, wherein: The MCU control unit adopts a high-performance microcontroller, supports I2C, ADC, PWM interface, and supports IPMB bus communication, and can communicate with the BMC unit in the chassis, receive the control command of the BMC unit, and upload the fan speed and temperature data.

5. The intelligent cooling fan control board with isolated power supply according to claim 1, wherein: The temperature sensor unit adopts a digital temperature sensor, which is connected with the MCU control unit through its own I2C interface.

6. The intelligent cooling fan control board with isolated power supply according to claim 1, wherein: The fan interface unit outputs PWM square wave signal through the PWM controller in the MCU control unit, and can dynamically adjust the fan speed according to the temperature data and external control command.

7. The intelligent cooling fan control board with isolated power supply according to claim 1, wherein: The isolation circuit unit adopts I2C drive BUFFER chip NCA9511_DMSR.

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