CN201687752U

CN201687752U - Control framework for rotating speed of fan

Info

Publication number: CN201687752U
Application number: CN2010201947557U
Authority: CN
Inventors: 安德鲁·李
Original assignee: ANTEC Inc
Current assignee: ANTEC Inc
Priority date: 2010-05-11
Filing date: 2010-05-11
Publication date: 2010-12-29
Anticipated expiration: 2020-05-11

Abstract

The utility model discloses a control framework for the rotating speed of a fan, wherein a power supply is used for supplying power for the rotation of the fan, and the rotating speed of the fan can be regulated by the control framework for the rotating speed of the fan, the rotating speed control framework comprises a connector connected with the power supply and a switching device connecting the connector with the fan, wherein the power supply outputs at least one first driving power and at least one second driving power which have different potentials by the connector, and the switching device obtains the first driving power and the second driving power and outputs one of the driving powers to the fan, thus not only enabling a user to automatically switch the first or the second driving power according to the radiating environment requirements so as to regulate the rotating speed of the fan, but also better simplifying the complexity of the traditional rotating speed regulating circuit, and reducing production cost.

Description

Rotation speed of the fan control framework

Technical field

The utility model relates to a kind of rotation speed of the fan control framework, relates in particular to a kind of rotation speed of the fan control framework of regulating and control rotating speed by adjustment fans drive electric power.

Background technique

Fast development along with computer technology, under the situation that the processing rate of each device (as central processing unit (CPU), display card etc.), running speed constantly rise in the computer system, the problem that certainly will cause each electronic equipment operating temperature to rise, therefore, how effectively and apace to reduce the operating temperature of electronic equipment, make the normal operation of electronic equipment energy, become the focus that industry is paid close attention to; In order effectively to reduce the heat of electronic equipment, the general practice is in computer-internal fan to be set, and whereby the hot gas of computer-internal is extracted out to reach the effect of heat radiation.

At present, generally all be to use the fan of adjustable rotating speed to dispel the heat, it mainly is height according to the heat dissipation environment temperature, regulate the size of fans drive electric power, control the rotating speed of fan, be to regulate and control to drive the size of electric power and the rotating speed of fan mostly in the prior art in the mode of pulse width modified tone (PWM, Pulse Width Modulation); Shown in No. 7541762, No. 7245095, No. 7233121 patent case of the U.S., those patent cases mainly are that the driving electric power with fan changes into pulse mode and supplies with, change the pulse width, ON time, dutycycle (duty cycle) etc. of input electric power by pulse width (PWM) technology that modifies tone, obtain required voltage and frequency whereby.

(PWM) reaches the effect of control rotation speed of the fan though those patent cases can modify tone by pulse width, but relative also derive unavoidable problem, pulse width modify tone (PWM) come the oxide-semiconductor control transistors switch by a Waveform generating circuit, decide the output power size by the time of conducting; Therefore, pulse width modified tone (PWM) has not only increased electronic circuit component, and expend higher electric power, also improved relatively and produced required cost, in addition, also must reserve the space on the circuit board and install these electronic circuit components, the configuration space of other circuit causes the difficulty on the circuit design on the compressor circuit plate that is bound to.

The model utility content

Main purpose of the present utility model is to solve the above problems, and under the situation that does not influence circuit configuration on the circuit board, provides the function of adjusting rotation speed of the fan.

For achieving the above object, the utility model proposes a kind of rotation speed of the fan control framework, this fan provides the electric power of running by an electric power source, and regulate and control the rotating speed of this fan by this rotation speed of the fan control framework, wherein, the connector that rotating speed control framework of the present utility model has this electric power source of connection, an and COMM communication that connects this connector and this fan, this electric power source drives electric power and second by first of at least two different potentials of this connector output and drives electric power, and this COMM communication obtains this first driving electric power and this second driving electric power, and determines that wherein a driving electric power exports this fan to.

Thus, the user just can pass through the driving electric power of this fan of control of this connector and this COMM communication multistage, and then regulates and control the rotating speed of this fan, and compared to conventional P WM temperature-controlled fan, more can simplify the difficulty of circuit design, and reduce production cost.

Description of drawings

Fig. 1 is a block schematic diagram of the present utility model; Fig. 2 is the utility model first embodiment's a circuit framework schematic representation;

Fig. 3 is the utility model first embodiment's a structural representation ();

Fig. 4 is the utility model first embodiment's a structural representation (two);

Fig. 5 is the utility model second embodiment's a circuit framework schematic representation;

Fig. 6 is the utility model second embodiment's a structural representation;

Fig. 7 is the utility model the 3rd embodiment's a circuit framework schematic representation;

Fig. 8 is the utility model the 3rd embodiment's a structural representation; And

Fig. 9 is another block schematic diagram of the present utility model.

Embodiment

Relevant detailed description of the present utility model and technology contents now are described as follows with regard to conjunction with figs.:

See also shown in Figure 1, the utility model is a kind of rotation speed of the fan control framework, mainly be the electric power that fan 40 runnings are provided by an electric power source 10, and pass through this rotation speed of the fan and control the rotating speed that framework is regulated and control fan 40, as shown in FIG., rotation speed of the fan control framework of the present utility model comprises that one connects the connector 20 of this electric power source 10, an and COMM communication 30 that connects this connector 20 and this fan 40, wherein, this electric power source 10 drives electric power 210 and second by first of at least two different potentials of these connector 20 outputs and drives electric power 220, and this COMM communication 30 obtains this first driving electric power 210 and this second driving electric power 220, and decision is wherein one to drive electric power 210,220 export this fan 40 to, the first driving electric power 210 and second different by switching electric potential drive electric power 220, to adjust the rotating speed of this fan 40, so constitute main framework of the present utility model.

Other sees also Fig. 2 and shown in Figure 3, be an embodiment of the present utility model, this electric power source 10 is a power supply unit, and be provided with one in the outlet terminal of output power and can join with the butting connector 11 of transferring electric power with this connector 20, and this connector 20 can be SATA (Serial ATA, Serial Advanced Technology Attachment) specification, be provided with the output pin position 21 of definition different potentials, 22,23, not only exportable first drives electric power 210 (12V) and second drives outside the electric power 220 (5V), also exportable one the 3rd drives electric power 230 (3.3V), and this COMM communication 30 also is provided with: to driving electric power 210 by connector 20 with each, 220,230

input pin position

31,32,33, and with one of them driving electric power 210,220,230 export an output pin position 34 of fan 40 to, and this COMM communication 30 is arranged on this connector 20 and has the thumb-acting switch of button handsetting 35, adjust the input pin position 31 of this COMM communication 30 by stirring this button handsetting 35,32,33 with the on state of output pin position 34, make the user can be according to the demand of heat dissipation environment, the first driving electric power 210 that the manual switchover current potential is different, second drives electric power 220 or the 3rd drives electric power 230, and adjusts the rotating speed of this fan 40.

See also shown in Figure 4 again, be another embodiment of the present utility model, be with last embodiment's difference, this connector 20 is the power output end mouth of this power supply unit outlet terminal, as shown in FIG., these connector 20 direct rear end outlets by power supply unit, do not need in addition and power supply unit is pegged graft mutually, and this COMM communication 30 is connected to this connector 20 by another power line 36, therefore, when the utility model was applied in computer housing, this COMM communication 30 can be arranged on the computer housing outside by these power line 36 extensions, the user does not need casing is taken apart, can be at the outside regulation and control of computer housing fan 40 rotating speeds.In addition, as Fig. 5 and shown in Figure 6, this COMM communication 30 is provided with a jumper 37 (jumper), selects one

input pin position

31,32,33 is connected with output pin position 34 by the mode of cross-over connection.

In addition, in the utility model, this connector 20 also is not limited to the SATA specification, can be as shown in Figures 7 and 8, connector 20 is implemented with big 4P (Peripheral PowerConnector) specification in addition, have the

output pin position

21,22 of 12V and 5V by this connector 20, drive electric power 210 with first of output 12V and drive electric power 220, and switch by COMM communication 30 and to drive electric power 210 or second with first and drive electric power 220 and export this fan 40 to second of 5V.

Among the aforesaid embodiment, this COMM communication 30 all is to adjust the rotating speed of fan 40 in manual mode, the utility model also can be as shown in Figure 9, adjust fan 40 rotating speeds in automatic mode, this COMM communication 30 is provided with a temperature inductor 50 with the induced environment temperature, and produce a sensing signal 51 and switch to trigger COMM communication 30, this temperature inductor 50 is provided with correspondence and respectively drives electric power 210,220 and the different temperature reference value of height, perhaps correspondence respectively drives electric power 210,220 and be the temperature range of different sections, for example, spend (or between 50 degree and 60 degree) when the ambient temperature of sensing is higher than 50, COMM communication 30 drives electric power 210 by first and switches to the second driving electric power 220.

In sum, the COMM communication 30 that rotating speed control framework of the present utility model mainly has the connector 20 that connects electric power source 10 and connects this connector 20 and fan 40, the first driving electric power 210 and second that makes electric power source 10 pass through at least two different potentials of these connector 20 outputs drives electric power 220 to this COMM communication 30, and this COMM communication 30 is switched wherein, and a driving electric power exports this fan 40 to.Therefore, the utility model can switch the driving electric power that transfers to this fan 40 by this COMM communication 30, not only reaches the effect of adjusting fan 40 rotating speeds, more can simplify the difficulty of circuit design, and reduces production cost.

Above-mentioned is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model, and promptly all equivalences of doing according to the content of the utility model claim change and modify, and all should be included in the technology category of the present utility model.

Claims

1. a rotation speed of the fan control framework is supplied with the electric power that described fan (40) turns round by an electric power source (10), and is controlled the rotating speed that framework is regulated and control described fan (40) by described rotation speed of the fan, it is characterized in that:

Described rotation speed of the fan control framework has the COMM communication (30) that a connector (20) and that connects described electric power source (10) connects described connector (20) and described fan (40), described electric power source (10) drives electric power (210) by first of at least two different potentials of described connector (20) output and drives electric power (220) with second, and described COMM communication (30) obtains described first driving electric power (210) and the described second driving electric power (220), and determines that wherein a driving electric power (210,220) exports described fan (40) to.

2. rotation speed of the fan control framework according to claim 1, it is characterized in that described COMM communication (30) is provided with correspondence and obtains the input pin position (31,32) of the described first driving electric power (210) and the second driving electric power (220) and the described first driving electric power (210) or second is driven the output pin position (34) that electric power (220) exports fan (40) to.

3. rotation speed of the fan control framework according to claim 2 is characterized in that described COMM communication (30) is provided with the jumper (37) of a connection described input pin position (31,32) and output pin position (34).

4. rotation speed of the fan control framework according to claim 1 is characterized in that described COMM communication (30) is for being provided with the thumb-acting switch of button handsetting (35).

5. rotation speed of the fan control framework according to claim 1 is characterized in that described COMM communication (30) is provided with an induced environment temperature to trigger the temperature inductor (50) that COMM communication (30) is switched.

6. rotation speed of the fan control framework according to claim 1 is characterized in that described COMM communication (30) is arranged on the described connector (20).

7. rotation speed of the fan control framework according to claim 1 is characterized in that described COMM communication (30) is connected to described connector (20) by a power line (36).

8. rotation speed of the fan control framework according to claim 1 is characterized in that described connector (20) is provided with output first and drives the output pin position (21,22) that electric power (210) and second drives electric power (220) and has different potentials.

9. rotation speed of the fan control framework according to claim 1 is characterized in that described connector (20) is the SATA specification.

10. rotation speed of the fan control framework according to claim 1 is characterized in that described connector (20) is big 4P specification.

11. rotation speed of the fan control framework according to claim 1 is characterized in that described electric power source (10) is a power supply unit, and is provided with and can joins with the butting connector (11) of transferring electric power with described connector (20) in the outlet terminal of output power.

12. rotation speed of the fan control framework according to claim 1 it is characterized in that described electric power source (10) is a power supply unit, and described connector (20) is the power output end mouth of described power supply unit outlet terminal.