TW201606201A - Fan-controlling devices - Google Patents

Abstract

A fan-processing device, which is adopted in a fan, includes a communication-processing module, a fan-controlling module, and a state-detecting module. The communication-processing module receives a fan-controlling instruction generated by an external system to generate a detect signal and provides state information for the external system. The fan-controlling module controls a speed of the fan according to the control signal and transmits a control result to the communication-processing module. The state-detecting module detects an environment state and a state of the fan according to the detect signal and generates the state information according to the environment state and the state of the fan. The communication-processing module, the fan-controlling module, and the state-detecting module are physically separated.

Description

Fan control unit

The present invention relates to a fan control device, and more particularly to a multi-processor fan control device.

In electronic systems such as computer systems, cooling fans play an important role in maintaining their operational performance. Failure to remove excess heat from the electronic system can result in permanent damage to the system. Due to the complexity of existing electronic systems, there is a need for a cooling fan having a value-added function other than cooling air, such as the ability to control fan speed, the ability to monitor the tachometer pulse on the fan to determine the instantaneous wind speed, and whether the fan is detected. The ability to fail or be slower than the predetermined speed.

At present, the design of motor products on the market is mostly a single control unit, which can be divided into analog control signals and digital control signals. The analog control signal method is to control the motor speed by using different voltages. The main advantage is that the design of the system-side control circuit is relatively simple, but the speed stability and the speed control resolution are far less than the digital control signal. .

The digital control signal is based on the communication or signal time period to control the motor speed. Its main advantage is that it has powerful auxiliary functions to control or read more information. But because the communication speed is changing with each passing day and the required functions are not The ground expansion has caused the motor control unit to be overworked, which limits the function of the motor control. Therefore, a high-efficiency motor control architecture is required to meet the high-quality and high-performance motor processing results.

In view of the above, the present invention provides a fan control device, which is applicable to a fan, including a communication processing module, a fan control module, and a state detection module. The communication processing module receives a fan control command sent by an external system to generate a control signal, generates a detection signal according to a state detection request of the external system, and provides a status information to the external system. . The fan control module controls the rotation speed of the fan according to the control signal, and transmits a control result to the communication processing module. The state detecting module detects an environmental state and a state of the fan according to the detection signal, and generates the state information according to the environmental state and the state of the fan, wherein the communication processing module, the fan control module, and The above state detection module is physically separated.

According to an embodiment of the invention, the fan control module includes a speed control unit and a start control unit. The rotation speed control unit controls the rotation speed of the fan based on the control signal. The start control unit controls the start and stop of the fan according to the control signal, wherein the speed control unit and the start control unit are physically separated.

According to an embodiment of the invention, any one of the communication processing module, the rotational speed control unit, and the activation control unit is an independent package.

According to an embodiment of the invention, the state detection module includes a temperature detecting unit, a rotation speed detecting unit, a current detecting unit, and a voltage detecting unit. The temperature detecting unit detects a temperature information according to the status detection request, wherein the temperature information includes an ambient temperature information and a fan temperature information. The rotation speed detecting unit detects information about the fan speed of the fan according to the detection signal. The current detecting unit detects the control current information about one of the fans according to the detection signal. The voltage detecting unit detects a control voltage information of the fan according to the detection signal, wherein the temperature detecting unit, the rotation speed detecting unit, the current detecting unit and the voltage detecting unit respectively have a The sensor is separated from the communication processing module, the temperature detecting unit, the rotation speed detecting unit, the current detecting unit, and the voltage detecting unit.

According to an embodiment of the invention, any one of the communication processing module, the temperature detecting unit, the rotation speed detecting unit, the current detecting unit and the voltage detecting unit is a separate package.

According to an embodiment of the present invention, the external system is a human-machine interface system, and the human-machine interface system generates the fan control command according to an operation command of a user, and generates the control signal through the communication processing module. Controlling the speed of the fan, the human interface system further generates the state detection request according to the operation command, and generating the detection signal through the communication processing module to request the state detection module to detect the environmental state and The state of the fan and the status information returned by the communication processing module are displayed on the human interface system.

The invention further provides a fan control device, comprising a communication place The module, a speed control unit, a start control unit, a temperature detecting unit, a speed detecting unit, a current detecting unit and a voltage detecting unit. The communication processing module receives a fan control command sent by an external system to generate a control signal, generates a detection signal according to a state detection request of the external system, and provides a status information to the external system. . The rotation speed control unit controls the rotation speed of the fan according to the control signal, and transmits a control result to the communication processing module. The start control unit controls the start and stop of the fan according to the control signal, and transmits a result of the opening and closing to the communication processing module.

According to an embodiment of the invention, the temperature detecting unit detects a temperature information according to the detection signal, wherein the temperature information includes an ambient temperature information and a fan temperature information. The rotation speed detecting unit detects information about the fan speed of the fan according to the detection signal. The current detecting unit detects the control current information about one of the fans according to the detection signal. The voltage detecting unit detects a control voltage information about the fan according to the detection signal, wherein the rotation speed detecting unit, the current detecting unit and the voltage detecting unit respectively have a sensor, and the communication is The processing module, the rotation speed control unit, the start control unit, the temperature detecting unit, the rotation speed detecting unit, the current detecting unit and the voltage detecting unit are physically separated.

According to an embodiment of the present invention, the communication processing module, the rotation speed control unit, the startup control unit, the temperature detecting unit, the rotation speed detecting unit, the current detecting unit, and the voltage detecting unit are Separately packaged separately.

According to an embodiment of the present invention, the external system is a human-machine interface system, and the human-machine interface system generates the fan control command according to an operation command of a user, and generates the control signal through the communication processing module. Controlling the speed of the fan, the human interface system further generates the state detection request according to the operation command, and generating the detection signal through the communication processing module to request the state detection module to detect the environmental state and The state of the fan and the status information returned by the communication processing module are displayed on the human interface system.

10‧‧‧External system

20‧‧‧Fan

101‧‧‧Communication processing module

102‧‧‧Fan control module

103‧‧‧State Detection Module

201‧‧‧Speed Control Unit

202‧‧‧Start control unit

301‧‧‧Temperature detection unit

302‧‧‧Speed detection unit

303‧‧‧current detection unit

304‧‧‧Voltage detection unit

S _I ‧‧‧Fan Control Instructions

S _C ‧‧‧ control signal

S _R ‧‧‧Return signal

S _D ‧‧‧Detection signal

S _S ‧‧‧Status Signal

S _P ‧‧‧ entity signal

S _T ‧‧‧Sensor signal

S _CF ‧‧‧Fan control signal

S _V ‧‧‧potential signal

S _ST ‧‧‧temperature sensing signal

S _SP ‧‧‧Continuous pulse signal

S _SI ‧‧‧ current sensing signal

S _SV ‧‧‧ voltage sensing signal

1 is a block diagram showing a fan control device according to an embodiment of the present invention; FIG. 2 is a block diagram showing a fan control module according to an example of the present invention; and FIG. 3 is a view showing A block diagram of a state detection module according to an embodiment of the invention.

The above described objects, features, and advantages of the present invention will become more apparent from the description of the appended claims appended claims A good example. It must be noted that the present invention provides a number of applicable inventive concepts, here The specific embodiments disclosed are merely illustrative of specific ways to achieve and use the invention, and are not intended to limit the scope of the invention.

1 is a block diagram showing a fan control device according to an embodiment of the present invention. As shown in FIG. 1 , the fan control device 100 includes a communication processing module 101 , a fan control module 102 , and a state detection module 103 . The communication processing module 101 receives the fan control command of the fan control command S _I sent by the external system 10 to generate a control signal S _C . After receiving the control signal S _C , the fan control module 102 then sends a physical signal S _P according to the indication of the control signal S _C for adjusting and controlling the state of the fan 20, and the fan control module 102 then passes the control result via the reward signal. S _R informs the communication processing module 101 that the adjustment and control have been successfully completed. 102 utilizes the physical signal S _P according to embodiment, the fan control module of one embodiment of the present invention controls the rotation speed of the fan 20, starts and stops, and then an embodiment will be described in detail. According to one embodiment of the present invention, the physical signal S _P is based PWM control signal or a control voltage.

The communication processing module 101 generates a detection signal S _D according to the state detection request of the fan control command S _I of the external system 10, and when the state detection module 103 receives the detection signal S _D , the sensor is used. (not shown in FIG. 1) The sensor signal S _T sent by the receiving fan 20 is used to know the status information of the fan 20 and transmit the status information to the communication processing module 101 by using the status signal S _S . The external system 10 can display the status information transmitted to the communication processing module 101 according to the requirements of the user. According to an embodiment of the invention, the sensor signal S _T is one of voltage, current, continuous pulse and temperature or any combination thereof.

According to an embodiment of the invention, the status information includes the state of the fan 20 and the environmental state at the time, and the state of the fan 20 includes the temperature of the fan 20, Information such as speed, voltage, current, etc., and the environmental state includes the ambient temperature at that time. According to an embodiment of the present invention, the fan control module 102 and the state detection module 103 are physically separated without any data transfer between them; according to another embodiment of the present invention, the communication processing module 101 and the fan control The module 102 and the state detection module 103 are each a separate package.

Figure 2 is a block diagram showing a fan control module in accordance with an example of the present invention. As shown in FIG. 2, the fan control module 102 includes a relay control unit 201 and a startup control unit 202. The rotation speed control unit 201 sends a fan control signal S _CF according to the control signal S _C for controlling the rotation speed of the fan 20. When the rotation speed control unit 201 controls the rotation speed of the fan 20, the rotation speed control unit 201 then informs the communication processing by using the return signal S _{R .} The module 101 has successfully completed the control action. According to an embodiment of the invention, the fan control signal S _CF is a PWM signal or a voltage signal.

The start control unit 202 issues a potential signal S _V according to the control signal S _C for controlling the start and stop of the fan 20. When the start control unit 202 starts or stops the fan 20, the start control unit 202 then uses the report signal S _{R to} notify The communication processing module 101 has successfully completed the control action. According to an embodiment of the present invention, the rotational speed control unit 201 and the activation control unit 202 are physically separated, and both operate independently without any communication between each other. According to another embodiment of the present invention, the rotational speed control unit 201 and the activation control unit 202 are each a separate package. According to an embodiment of the invention, when the operating voltage is 5V, the potential signal S _V is 0V or 5V.

The speed control and start control functions described herein are for illustrative purposes only, and the fan control module may include the function of controlling the fan to be invented later, and It is not limited to this in any form.

FIG. 3 is a block diagram showing a state detection module according to an embodiment of the invention. The state detecting module 103 includes a temperature detecting unit 301, a rotational speed detecting unit 302, a current detecting unit 303, and a voltage detecting unit 304. The temperature detecting unit 301, the rotational speed detecting unit 302, the current detecting unit 303, and Each of the voltage detecting units 304 has a sensor on the fan 20, which is not shown in FIG.

When the temperature detecting unit 301 receives the detection signal S _D sent by the communication processing module 101, the temperature detecting unit 301 receives the temperature sensing signal S sent by the sensor of the fan 20 according to the detecting signal S _D . _{ST is} used to receive temperature information. According to an embodiment of the invention, the temperature information includes ambient temperature information and fan temperature information of the fan 20. When receiving the detection signal S _D , the rotation speed detecting unit 302 receives the continuous pulse signal S _{SP from} the sensor of the fan 20 for receiving the fan speed information of the fan 20 . When receiving the detection signal S _D , the current detecting unit 303 receives the current sensing signal S _{SI from} the sensor of the fan 20 for receiving the control current information of the fan 20 . When receiving the detection signal S _D , the voltage detecting unit 304 receives the voltage sensing signal S _{SV from} the sensor of the fan 20 for receiving the control voltage information of the fan 20 .

The temperature detecting unit 301, the rotation detecting unit 302, the current detecting unit 303, and the voltage detecting unit 304 respectively transmit the temperature information, the fan speed information, the control current information, and the control voltage information to the state signal S _S . Communication processing module 101. According to an embodiment of the present invention, the temperature detecting unit 301, the rotation speed detecting unit 302, the current detecting unit 303, and the voltage detecting unit 304 are physically separated; according to another embodiment of the present invention, the temperature detecting is performed. The unit 301, the rotation speed detecting unit 302, the current detecting unit 303, and the voltage detecting unit 304 are all independent packages.

According to an embodiment of the present invention, the state detection module of the present invention is not limited to detecting functions such as temperature, speed, current, and voltage, and may add all detection functions according to the field of application of the fan control device. The invention is not limited thereto by any type.

In order to clearly illustrate the use of the fan control device of the present invention, a cooling fan will be described below as an embodiment and will be described in detail in conjunction with Figures 1-3. Moreover, only a cooling fan is used herein as an embodiment of the fan control device, and is not limited thereto by any type.

According to an embodiment of the invention, the external system 10 is a human-machine interface system. When a user sets the temperature to 30 degrees through the human interface system, the human interface system sends the fan control command S _I to the communication processing module 101. When the communication processing module 101 receives the fan control command S _I , the communication processing module 101 uses the detection signal S _{D to} request the temperature detecting unit 301 to receive the temperature sensing signal S _ST to detect the ambient temperature and the fan temperature. . After the detection is completed, the temperature detecting unit 301 transmits the temperature information of the temperature sensing signal S _ST to the communication processing module 101 by using the status signal S _S .

According to an embodiment of the present invention, after receiving the temperature information, the communication processing module 101 finds that the ambient temperature is 35 degrees, determines that the ambient temperature is higher than the temperature set by the user, and needs to start the fan 20 to cool down, thereby issuing a control signal. S _C to the start control unit 202, the potential signal S _V is issued to activate the fan 20, and the control signal S _{C is} also used to notify the rotational speed control unit 201 to issue the fan control signal S _CF to adjust the rotational speed of the fan 20 to an appropriate speed. After the speed control unit 201 and the start control unit 202 complete the control action, the communication processing module 101 is notified of the completion of the task by the reward signal S _R .

According to an embodiment of the present invention, when the temperature of the fan that is reported by the communication processing module 101 according to the temperature sensing signal S _ST received by the temperature detecting unit 301 is higher than the safe range, the communication processing module 101 issues a control signal S _{C .} The rotation speed control unit 201 sends out the fan control signal S _CF to lower the rotation speed of the fan 20, or the start control unit 202 sends out the potential signal S _V to stop the fan 20, and waits until the temperature detection unit 301 receives the temperature sense. When the temperature of the temperature information reported by the signal S _ST returns to normal, the fan 20 is activated.

According to an embodiment of the present invention, the communication processing module 101 can immediately generate a physical signal S _P by using the fan control module 102 according to the environmental state of the sensor signal S _{T and} the state of the fan 20 received by the detection module 103. To adjust the operation of the fan 20, according to another embodiment of the present invention, the communication processing module 101 can use the detection signal S _{D to} request the state detection module 103 to stop collecting state information (ie, stop receiving the sensor signal S _T In order to achieve the purpose of power saving, according to another embodiment of the present invention, the communication processing module 101 can request the state detecting module 103 to collect state information (ie, receive the sensor signal S) at a predetermined time interval. _T ), and determine whether it is necessary to adjust the operation of the fan 20.

According to an embodiment of the present invention, the user can request the state detecting module 103 to collect state information (ie, receive the sensor signal S _T ) through the human interface system (ie, the external system 10), and receive the receiving. The real-time status information contained in the sensor signal S _{T is} displayed on the human-machine system (ie, the external system 10) for the user to interpret.

The invention provides a multi-processor fan control device, Each of the functions is processed by a single function processing module. According to one embodiment of the invention, the single function processing module is a single function circuit or a single function microprocessor. Since the design of the single-function circuit or the processor is relatively simple, the complexity of the processing module is greatly reduced, thereby improving the design efficiency and heat dissipation efficiency of the processing module, thereby greatly reducing the overall cost.

For the general way of integrating all control, detection and communication functions into a single processing module on the market, due to the complexity of the various functions involved, it is necessary to spend a lot of manpower and time in the design process to clarify the interaction between various functions. Unexpected effects can occur, causing unpredictable damage to the processing module. Moreover, all the functions are integrated into one processing module, which is bound to increase the heating power of the processing module. When the function is more diverse, an additional fan is needed to cool down.

The invention disassembles all the control functions into a single processing module (which can be a circuit or a processor), and transfers the work between the communication processing modules and the communication external system to the communication processing module, and each The control unit and each detection unit are physically separated, that is, each control unit and detection unit is only responsible for its control or detection. When all control functions and detection functions are disassembled into separate units, the design difficulty will be greatly reduced and the design cost will be reduced, and the single processing module will be disassembled into several processing units because the interaction between the functions is not considered. After the module, the heat dissipation area will also increase significantly, and the heat dissipation cost can be reduced, resulting in lower overall production cost and higher production efficiency.

The features of many embodiments are described above in the art. Those having ordinary knowledge can clearly understand the form of the present specification. Those having ordinary skill in the art will appreciate that the objectives of the above-described embodiments and/or advantages consistent with the above-described embodiments can be accomplished by designing or modifying other processes and structures based on the present disclosure. It is also to be understood by those skilled in the art that <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

10‧‧‧External system

20‧‧‧Fan

101‧‧‧Communication processing module

102‧‧‧Fan control module

103‧‧‧State Detection Module

S _I ‧‧‧Fan Control Instructions

S _C ‧‧‧ control signal

S _R ‧‧‧Return signal

S _D ‧‧‧Detection signal

S _S ‧‧‧Status Signal

Claims (9)

A fan control device is applicable to a fan, comprising: a communication processing module, receiving a fan control command sent by an external system to generate a control signal, and generating a detect according to a state detection request of the external system Measuring a signal, and providing a status information to the external system; a fan control module, controlling the rotation speed of the fan according to the control signal, and transmitting a control result to the communication processing module; and a state detection module And detecting the state of the environment and the state of the fan according to the detection signal, and generating the status information according to the environmental state and the state of the fan, wherein the communication processing module, the fan control module, and the status detection Modules are physically separated. The fan control device of claim 1, wherein the fan control module comprises: a rotation speed control unit that controls the rotation speed of the fan according to the control signal; and a start control unit that controls according to the control signal The start and stop of the fan, wherein the speed control unit and the start control unit are physically separated. The fan control device of claim 2, wherein the communication processing module, the rotational speed control unit, and the activation control unit are independent packages. The fan control device of claim 1, wherein the state detecting module comprises: a temperature detecting unit detects a temperature information according to the detection signal, wherein the temperature information includes an ambient temperature information and a fan temperature information; and a rotation speed detecting unit detects the fan according to the detection signal a fan speed information; a current detecting unit detects a control current information about the fan according to the detecting signal; and a voltage detecting unit detects a control of the fan according to the detecting signal The voltage information, wherein the temperature detecting unit, the rotation detecting unit, the current detecting unit, and the voltage detecting unit respectively have a sensor, and the communication processing module, the temperature detecting unit, and the rotating speed detecting The measuring unit, the current detecting unit and the voltage detecting unit are physically separated. The fan control device of claim 4, wherein the communication processing module, the temperature detecting unit, the rotation speed detecting unit, the current detecting unit, and the voltage detecting unit are Independent package. The fan control device of claim 1, wherein the external system is a human-machine interface system, and the human-machine interface system generates the fan control command according to an operation command of a user, and transmits the communication through the communication process. The module generates the control signal to control the rotation speed of the fan, and the human interface system further generates the state detection request according to the operation command, and generates the detection signal through the communication processing module to request the state detection mode. Group detects the above environmental status And the state of the fan, and displaying the status information returned by the communication processing module to the human-machine interface system. A fan control device is applicable to a fan, comprising: a communication processing module, receiving a fan control command sent by an external system to generate a control signal, and generating a detect according to a state detection request of the external system Measuring a signal, and providing a status information to the external system; a rotational speed control unit, controlling the rotational speed of the fan according to the control signal, and transmitting a control result to the communication processing module; a start control unit, according to the above The control signal controls the start and stop of the fan, and transmits a shutdown result to the communication processing module; a temperature detecting unit detects a temperature information according to the status detection request, wherein the temperature information includes a The ambient temperature information and the information of the fan temperature; the speed detecting unit detects the fan speed information about the fan according to the detecting signal; and the current detecting unit detects the fan according to the detecting signal a control current information; and a voltage detecting unit, according to the detection signal Detecting one of the control voltage information of the fan, wherein the rotation speed detecting unit, the current detecting unit and the voltage detecting unit respectively have a sensor, and the communication processing module, the rotation speed control unit, and the starting Control unit, the above temperature detecting unit, the above-mentioned rotation speed detecting unit, The current detecting unit and the voltage detecting unit are physically separated. The fan control device of claim 7, wherein the communication processing module, the rotation speed control unit, the startup control unit, the temperature detecting unit, the rotation speed detecting unit, the current detecting unit, and the The voltage detection units are respectively independent packages. The fan control device of claim 7, wherein the external system is a human-machine interface system, and the human-machine interface system generates the fan control command according to an operation command of a user, and transmits the communication through the communication process. The module generates the control signal to control the rotation speed of the fan, and the human interface system further generates the state detection request according to the operation command, and generates the detection signal through the communication processing module to request the state detection mode. The group detects the environmental status and the status of the fan, and displays the status information returned by the communication processing module in the human-machine interface system.