TWM629933U - fan drive structure - Google Patents

Abstract

A fan drive structure is connected with a fan. The fan drive structure includes: a base plate, a connection port, a drive unit, and a processing interface unit; the connection port is arranged on the base plate and has a power supply positive terminal and a power supply negative terminal. Extremely, a speed control end and a speed feedback end; the drive unit is arranged on the substrate, the drive unit is electrically connected with the fan and outputs a drive signal; and the processing interface unit is arranged on the substrate, the processing interface unit The processing interface unit is electrically connected with the driving unit and the connecting port, and the processing interface unit generates different driving signals according to different types of signals received by the connecting port, thereby achieving communication and control of the fan.

Description

fan drive structure

The invention relates to the field of a fan, in particular to a fan drive structure.

Press, the cooling fan is a common heat dissipation structure, which can mainly provide electronic components, motor components or machines with heat energy generation, and can start the cooling fan and extract the heat generated therein, assisting in volatilizing the heat to achieve heat dissipation and cooling. The purpose of this is to protect electronic, electrical or mechanical components, so that they can prolong their life and avoid damage due to high temperature and affect their operation. There are cooling fans.

When the current fan is in use, in addition to the two basic power lines, there are also control signal lines to input PWM signals and feedback speed lines to feedback speed signals, so as to control the speed of the fan and know the actual speed, but further through the control signal Line and feedback speed line to achieve more intelligent control, the traditional driver IC can not meet such use requirements.

In order to achieve intelligent control of existing fans, the current practice is to replace traditional ICs with MCUs with better performance, but this approach will lead to the following problems: 1. The replacement of MCUs leads to costs; 2. The replacement of traditional ICs causes waste ; 3. Because of the replacement of MCU, the overall characteristics and functions of the fan must be re-planned and designed.

Therefore, how to solve the above problems and deficiencies is the direction that the creator of this case and the relevant manufacturers in this industry are eager to research and improve.

In order to improve the above-mentioned problems, the main purpose of this creation is to provide a fan drive structure with intelligent control by adding a processing interface element to a fan equipped with a traditional drive IC.

In order to achieve the above purpose, the present invention provides a fan drive structure, which is connected to a fan. The fan drive structure includes a base plate, a connection port, a drive unit, and a processing interface unit; the connection port is disposed on the base plate and has A positive terminal of a power supply, a negative terminal of a power supply, a rotational speed control terminal and a rotational speed feedback terminal; the driving unit is arranged on the substrate, the driving unit is electrically connected with the fan and outputs a driving signal; the processing interface unit is arranged on the On the substrate, the processing interface unit is electrically connected with the driving unit and the connecting port, and the processing interface unit generates different driving signals according to different types of signals received by the connecting port, thereby achieving communication control of the fan.

With the above-mentioned structure, the fan that originally only has the traditional driver IC can have the ability of intelligent communication control with the smallest change, so as to achieve the advantage of low-cost upgrade of the traditional fan.

1: Fan

11: frame seat

12: stator group

13: Rotor set

2: Drive structure

21: Substrate

22: port

221: Positive terminal of power supply

222: negative terminal of power supply

223: Speed control terminal

224: Speed feedback terminal

23: Drive unit

24: Handling interface units

Figure 1 is a block diagram of the structure of the fan drive structure; Figure 2A is a schematic diagram of an exploded fan using the fan drive structure; Figure 2B is a schematic diagram of a fan assembly using the fan drive structure.

The above-mentioned purpose of the present invention and its structural and functional characteristics will be described with reference to the preferred embodiments of the accompanying drawings.

Please refer to Fig. 1, Fig. 2A and Fig. 2B, which are the structural block diagram of the fan drive structure of the present invention, the exploded schematic diagram and the assembly diagram of the fan using the fan drive structure of the present invention. The drive structure of the present invention 2 is applied to a fan 1 , in this embodiment, the fan 1 is an axial flow fan, but it is not limited by this, for example For example, a cross-flow fan, a centrifugal fan or other types of fans can be replaced. The fan 1 has a frame 11, a stator group 12 and a rotor group 13. The structures of the above components are well known to those skilled in the art, and will not be omitted here. Repeat its details.

The driving structure 2 includes a substrate 21 , a connection port 22 disposed on the substrate 21 , a driving unit 23 disposed on the substrate 21 and a processing interface unit 24 disposed on the substrate 21 , the processing interface unit 24 It is electrically connected with the drive unit 23 and the connection port 22. The connection port 22 has a power supply positive terminal 231, a power supply negative terminal 232, a rotational speed control terminal 233 and a rotational speed feedback terminal 234. The rotational speed control terminal 233 inputs a pulse Wide modulation signal (PWM), the speed feedback terminal 234 outputs a fan speed signal (FG), the substrate 21 is a flexible substrate or a printed circuit board, and the processing interface unit 24 is a microcontroller (Micro Control Unit) ).

The above-mentioned driving structure 2 is preferably arranged in the fan 1, and can also be installed externally. In this embodiment, the driving structure 2 is arranged on the frame base 11, and the stator group 12 can be integrated on the base plate 21 to save space. The fan 1 is miniaturized. When the connection port 22 is connected to an external cable, the positive terminal 231 of the power supply and the negative terminal 232 of the power supply provide the power for the operation of the fan 1 and the driving structure 2. Under normal use conditions, the speed control terminal 233 receives The speed is controlled by an external pulse width modulation signal (PWM), and the fan speed signal (FG) is output by the speed feedback terminal 234 to determine the actual speed. At this time, the processing interface unit 24 has not received the intelligent communication signal and does not operate. At this time The fan 1 is driven only by the drive unit 23; during the intelligent communication, the intelligent communication signal is input to the processing interface unit 24 from the rotational speed control terminal 233, and the processing interface unit 24 analyzes the intelligent communication signal and transmits the result to the processing interface unit 24. The drive unit 23 drives the fan 1 by the drive unit 23 .

In short, no matter what the external input signal is, the processing interface unit 24 will firstly determine the input signal in the present invention. The driving of the fan 1, if it is determined to be an intelligent control signal, is first analyzed and processed by the processing interface unit 24, and then the driving unit 23 is used to drive the fan 1, so that the new structure can be added without changing the original structure. A processing interface unit 24 to upgrade the traditional fan to a smart fan.

To sum up, this creation has the following advantages: 1. Reduce the cost of upgrading; 2. Reduce the waste of upgrading; 3. Maintain the original features and functions without re-planning and design.

The creation has been described in detail above, but the above is only a preferred embodiment of the creation, and should not limit the scope of implementation of the creation. That is, all equivalent changes and modifications made in accordance with the scope of the application of this creation shall still fall within the scope of the patent of this creation.

1: Fan

2: Drive structure

21: Substrate

22: port

221: Positive terminal of power supply

222: negative terminal of power supply

223: Speed control terminal

224: Speed feedback terminal

23: Drive unit

24: Handling interface units

Claims (7)

A fan drive structure is connected with a fan, the fan drive structure comprises: a base plate; a connection port, disposed on the base plate, with a positive power supply terminal, a negative power supply terminal, a rotational speed control end and a rotational speed feedback end; a driving unit, which is arranged on the substrate, the driving unit is electrically connected to the fan and outputs a driving signal; and a processing interface unit, which is arranged on the substrate, and is electrically connected to the driving unit and the connection port For connection, the processing interface unit generates different driving signals according to different types of signals received by the connecting ports, thereby achieving communication and control of the fan. The fan drive structure as described in claim 1, wherein the fan comprises a frame, a stator group and a rotor group. The fan drive structure as described in claim 2, wherein the drive unit is connected to the stator group. The fan drive structure as described in claim 1, wherein a pulse width modulation signal is input to the speed control terminal. The fan drive structure as described in claim 1, wherein the rotational speed feedback terminal outputs a fan rotational speed signal. The fan drive structure as described in claim 1, wherein the substrate is a flexible substrate. The fan drive structure as described in claim 1, wherein the processing interface unit is a microcontroller.

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