CN101201059B - Fan system and its starting method - Google Patents

Abstract

A fan system includes a connecting device, a control device, and a fan device. The connecting device has a first pin and a second pin, the length of the first pin is greater than the length of the second pin, and the first pin receives at least one driving signal, and the second pin receives a start signal; the control device is electrically connected to the connecting device and has an enabling unit, the enabling unit generates at least one first enabling signal according to the start signal, and the control device outputs the driving signal and the first enabling signal; the fan device is electrically connected to the control device and has at least one fan, and the fan device transmits the driving signal to the fan according to the first enabling signal and drives it.

Description

Fan system and its starting method

technical field

The present invention relates to a fan system and a starting method thereof, in particular to a fan system and a starting method thereof with improved stability and safety.

Background technique

With the rapid development of science and technology, the higher the functional requirements for electronic equipment, the higher the number and concentration of electronic components used, and the greater the relative heat dissipation requirements. Therefore, the quality of heat dissipation will directly affect electronic equipment. Equipment reliability and service life.

It is a common structural setting to use fans as cooling devices. When used on the client system side, the number of fans is usually increased or decreased according to the different needs of the client, and the speed of the fans in the fan system is driven and controlled by the control device or control chip. , so that the fan can adjust the fan speed according to the actual operating conditions of the customer system.

Please refer to FIG. 1 , a conventional fan system is electrically connected to a client system end SB1 , and the fan system includes a hot swap control device 11 , a control device 12 and a fan device 13 . Usually, the client system end SB1 provides the main power supply MP1 and the auxiliary power supply SP1, and has a connector C1, and the connector C1 is used for connecting a first driving signal S01 generated by the main power supply MP1 and a first driving signal generated by the auxiliary power supply SP1. The second drive signal S02 is sent to the fan system.

The heat swap control device 11 has a plurality of heat swap elements 111, 112 and a plurality of pins 113 electrically connected to each other. It is electrically connected with the fan device 13 and receives the first driving signal S01 or the second driving signal S02 respectively.

The control device 12 is a digital signal processor or a microprocessor, and the hot swap element 112 transmits the second driving signal S02 to activate the control device 12 .

The fan device 13 is electrically connected to the control device 12 and has a plurality of fans 131 and a plurality of isolation circuits 132. The plurality of heat-swappable elements 111 transmit the plurality of first driving signals S01 to activate the plurality of fans 131 respectively. , and the plurality of isolation circuits 132 are electrically connected between the control device 12 and the plurality of fans 131, so as to transmit a pulse width modulation signal (PWM) P generated by the control device 12 to the plurality of fans 131, so that The rotation speeds of the plurality of fans 131 are changed according to the PWM signal P.

Generally speaking, the fan system must provide sufficient heat dissipation requirements of the client system side SB1 in any state, so when one of the fans 131 of the fan system is damaged, it can be hot-swapped through the heat-swappable element 111 ( hot-swap) to replace the new fan in real time, so as to maintain the heat dissipation requirements of the SB1 on the customer system side. However, the plurality of hot-swappable elements 111 and 112 correspondingly connected to the main power supply MP1 and the auxiliary power supply SP1 of the client system end SB1 are activated by independent power supplies, so when the user improperly plugs and unplugs, in addition to causing The pin 113 of the hot-swappable control device 11 is easy to bend, and the contact point with the connector C1 becomes smaller, so the problem of poor contact is likely to occur.

In addition, since the motor (not shown) of the fan 131 is a dynamic inductive load, a large starting current is required to start from a static state to a steady state, and at the moment when the fan system starts, there may be a gap between the fan system and the fan system. Inrush current, voltage (spike voltage) or spike noise (spike noise) is generated between the connector C1 of the client system end SB1, and even flashover occurs, that is, electric arc (electric arc), causing the client system end damage to SB1 or the fan system.

In addition, although the plurality of pins 113 of the hot-swappable control device 11 are usually made into floating connectors (floating connector) (as shown in FIG. 2 ) or floating circuit board (floating board) (not shown in the figure), with It is ensured that the plurality of pins 112 contact the connector C1 at the same time at the same time, but this method still cannot effectively and completely suppress the generation of spike noise on the plurality of pins 113, and at the same time of hot swapping, the multiple The positive or negative spike noise generated by each hot-swappable element 111 will pass through the pin 113 through the ground loop of the main power supply MP1 to damage the small-signal electronic components (not shown in the figure) of the fan system, so this is usually added. Multiple isolation circuits 132 are used for protection. In addition, if the plurality of heat-swappable elements 111 are frequently used, in addition to making the contact points (terminals) of the plurality of pins 113 prone to oxidation and poor contact, the plurality of heat-swappable elements 111 will also The life of the fan is reduced, which in turn reduces the quality of the fan system.

Therefore, how to provide a fan system and its starting method that can effectively suppress the generation of surge current, surge voltage or spike noise when the fan system is started, and then achieve simultaneous protection of the client system and self-protection, has become one of the important topics.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide a fan that can effectively suppress the generation of surge current, surge voltage or spike noise when the fan system is started, and further protect the client system and the fan system at the same time. The system and its method of starting.

The reason is that, in order to achieve the above purpose, a fan system according to the present invention includes a control device and a fan device. The control device receives at least one drive signal and an activation signal, and generates at least one first enable signal according to the activation signal, and the control device outputs the drive signal and the first enable signal; the fan device is electrically connected to the control device , and receive the first enabling signal to control the transmission of the driving signal.

To achieve the above object, according to a method for starting a fan system of the present invention, wherein the fan system has at least one fan, the method for starting includes receiving at least one drive signal and a start signal; after a time delay or interval, according to the The start signal generates at least one first enable signal; and outputs the driving signal according to the first enable signal, and drives the fan.

To achieve the above purpose, a fan system according to the present invention includes a connection device, a control device and a fan device. The connection device has a first pin and a second pin, the length of the first pin is longer than the length of the second pin, the first pin receives at least one driving signal, and the second pin receives An activation signal; the control device is electrically connected to the connection device, and generates at least one first activation signal according to the activation signal, and the control device outputs the driving signal and the first activation signal; the fan device is electrically connected to the control device , and receive the first enabling signal to control the transmission of the driving signal.

To achieve the above object, according to a method for starting a fan system of the present invention, wherein the fan system has at least one fan, the starting method includes receiving at least one driving signal at a first time; receiving a starting signal at a second time ; generating at least one first enabling signal according to the enabling signal; and outputting the driving signal according to the first enabling signal, and driving the fan.

Based on the above, according to a fan system and its starting method of the present invention, in addition to receiving a plurality of driving signals through a plurality of first pins of a connecting device, and a second pin of the connecting device is used to receive An activation signal, and the length of the plurality of first pins is greater than the length of the second pin, so that the activation signal is delayed by the interval time compared with the plurality of driving signals and input to the control device, and the delay can also be passed The delay time generated by the enable unit is used to enable the delay enable unit to start the fan according to the start signal after the delay time elapses. Compared with the prior art, because the length of the plurality of first pins of the connecting device is greater than the length of the second pins in the present invention, after first receiving the plurality of driving signals, it is in a waiting state until receiving the plurality of driving signals. After the start signal, the multiple drive signals start to operate, or the delay unit receives the start signal and the drive signal at the same time, and after the delay time, the start signal starts to operate. In this way, the present invention Not only can the second pin or the delay enable unit be used as a function of starting or closing the entire fan device, but also ensure that the plurality of first pins and the plurality of pins are at the contact end without any electric arc ), and when receiving the plurality of driving signals, positive or negative spike noise (spike noise) will not be transmitted to the control device and the fan device through the plurality of first pins or the plurality of pins. In addition, the fan system can reach a steady state during the delay time.

Description of drawings

FIG. 1 is a schematic diagram of a conventional fan system;

2 is a structural diagram of pins of a hot-swappable control device of a conventional fan system;

3 is a schematic diagram of a fan system according to a first preferred embodiment of the present invention;

4 is a flowchart of a method for starting a fan system according to a first preferred embodiment of the present invention;

5 is a schematic diagram of a fan system according to a second preferred embodiment of the present invention; and

FIG. 6 is a flowchart of a method for starting a fan system according to a second preferred embodiment of the present invention.

Description of component symbols:

11: Hot swap control device

111, 112: Hot-swappable components

113: pin

12, 22, 32: Control device

13, 23, 33: fan unit

131, 231, 331: fan

132: Isolation circuit

21, 31: Connection device

211: the first pin

212: Second pin

221: enable unit

2211: first switching element

2212: Second switching element

222, 322: isolation protection unit

2221, 3221: the first protection circuit

2222, 3222: the first isolation circuit

232, 332: The first hot swap control unit

233, 333: control unit

234, 334: Second hot swap control unit

235, 332: Second isolation circuit

311: pin

321: Delay enable unit

3211: Delay Enable Circuit

3212: switching element

C1, C2, C3: Connectors

MP1, MP2, MP3: main power

SB1, SB2, SB3: client system side

SP1, SP2, SP3: auxiliary power supply

S01: The first drive signal

S02: Second drive signal

S11, S11’, S21, S21’: drive signal

S12, S22: start signal

S13, S23: first enabling signal

S14, S24: second enabling signal

P: pulse width modulation signal

S1-S4, S5-S7: Steps of the start method

Detailed ways

A fan system and its starting method according to a preferred embodiment of the present invention will be described below with reference to related drawings.

Please refer to FIG. 3 , the fan system according to the first preferred embodiment of the present invention includes a connection device 21 , a control device 22 and a fan device 23 . The fan system of this embodiment is electrically connected to a connector C2 of a client system end SB2 to receive at least one driving signal S11, S11' and an activation signal S12 provided by the client system end SB2. In addition, the drive signals S11, S11' and the start signal S12 of this embodiment are all at different voltage levels, and the drive signal S11 is generated by the main power supply MP2 of the client system end SB2 in implementation, and the drive signal S11 ' is generated by the auxiliary power supply SP2, and the start signal S12 is implemented as a low potential signal or a ground signal, and the ground signal is taken as an example here.

The connection device 21 of this embodiment has a plurality of first pins 211 and a second pin 212, and is electrically connected to the connector C2 of the client system end SB2, for example, the plurality of first pins 211 and a second pin 212 The second pin 212 is inserted into the connector C2 to be electrically connected to multiple pins (not shown) of the connector C2 to receive the driving signals S11 , S11 ′ and the start signal S12 . In addition, the lengths of the plurality of first pins 211 are equal to each other and longer than the length of the second pins 212 .

The control device 22 of this embodiment is electrically connected to the plurality of first pins 211 and the second pins 212 of the connection device 21, and has an enabling unit 221 and an isolation protection unit 222, and the enabling unit 221 It is electrically connected with the isolation protection unit 222 .

The enabling unit 221 includes at least one first switching element 2211 and a second switching element 2212. Here, the enabling unit 221 has a plurality of first switching elements 2211 as an example, and the second switching element 2212 and one of the first switching elements A switching element 2211 is electrically connected. In this embodiment, the plurality of first switch elements 2211 simultaneously receive the enable signal S12, and according to the enable signal S12, the plurality of first switch elements 2211 are simultaneously turned on to generate a first enable signal S13. The second switch element 2212 is turned on according to the first enabling signal S13 to generate a second enabling signal S14.

The isolation protection unit 222 includes at least one first protection circuit 2221 and at least one first isolation circuit 2222, and the first protection circuit 2221 and the first isolation circuit 2222 are electrically connected to each other. The number of circuits 2221 and the plurality of first isolation circuits 2222 is the same as an example. In this embodiment, the plurality of first protection circuits 2221 are electrically connected to the fan device 23 and receive the plurality of driving signals S11, and the plurality of first protection circuits 2221 are used to ensure the stability of the plurality of driving signals S11 sent to the fan device 23, and avoid reverse current generation. The plurality of first isolation circuits 2222 are respectively electrically connected to the remaining plurality of first switching elements 2211 (that is, the plurality of first switching elements 2211 not connected to the second switching element 2212) and the fan device 23. The plurality of first isolation circuits 2222 are used to transmit the first enabling signal S13, and isolate the plurality of driving signals S11 and the ground terminals of the first enabling signal S13, so as to avoid positive or negative spike noises passing through the main power supply MP2 The ground loop damages the fan unit 23 of the subsequent stage.

Furthermore, the fan device 23 of this embodiment includes at least one fan 231, at least one first heat swap control unit 232, and a control unit 233. In practice, a plurality of fans 231 and a plurality of first heat swap controls The unit 232 and a control unit 233 are taken as examples. The plurality of first hot swap control units 232 are electrically connected to the control device 22, and the plurality of first hot swap control units 232 are respectively electrically connected to the isolation protection unit 222 and the plurality of fans 231 to simultaneously receive And transmit the plurality of driving signals S11 according to the first enabling signal S13 to start the plurality of fans 231 . In addition, the fan device 23 also includes a second hot swap control unit 234, which is electrically connected to the activation unit 221 and the control unit 233 respectively, and receives and transmits the drive signal S11' according to the second activation signal S14. to the control unit 233.

In this embodiment, the control unit 233 is electrically connected to the plurality of fans 231 and generates a pulse width modulation signal (PWM) P to control the rotation speed of the plurality of fans 231 . In addition, the control unit 233 is driven by the driving signal S11'. The control unit 233 of this embodiment can be implemented as a microprocessor, a digital signal processor or a control chip.

In addition, the fan device 23 further includes at least one second isolation circuit 235 electrically connected between the control unit 233 and the fan 231 . In practice, there are a plurality of second isolation circuits 235, the number of which corresponds to the number of the plurality of fans 231, and the plurality of second isolation circuits 235 are used to isolate the plurality of driving signals S11 and the ground of the control unit 233 terminal, and stably transmit the pulse width modulation signal P from the control unit 233 to the plurality of fans 231 .

Here, the operation method of the fan system in this embodiment is described as follows: when the fan system is to be electrically connected to the client system end SB2, the plurality of first pins 211 of the connection device 21 will first be connected to the At this time, the control device 22 simultaneously receives the plurality of driving signals S11, S11' through the plurality of first pins 211, and then, the second pin 212 contacts the connector C2 again, And receive the starting signal S12, which means that there is an interval between the driving signals S11, S11' and the starting signal S12, and are input to the fan system successively. At this time, the enabling unit 221 of the control device 22 generates the first enabling signal S13 according to the enabling signal S12, and at the same time turns on the second switching element 2212 to generate the second enabling signal S14, and turns on the second The activation signal S14 is transmitted to the fan device 23, and the isolation protection unit 222 ensures that the drive signal S11 and the first activation signal S13 can be directly transmitted to the fan device 23, and will not be reversely input to the client system terminal SB2 and The enabling unit 221, the plurality of first hot-swap control units 232 of the fan device 23 transmit the plurality of driving signals S11 to the plurality of fans 231 according to the plurality of first enabling signals S13, so as to activate the plurality of fans. A plurality of fans 231, and the second hot-swap control unit 234 enables the drive signal S11' to activate the control unit 233 according to the second enabling signal S14, and the control unit 233 controls the plurality of fans with the pulse width modulation signal P The speed of the fan 231.

Since the lengths of the plurality of first pins 211 of the connection device 21 are greater than the length of the second pins 212, the plurality of first pins 211 will not immediately Start the fan 231 until the second pin 212 receives the start signal S12, the control device 22 starts to operate according to the start signal S12, and drives the fan 231. This method can not only use the second pin 212 as the function of starting or shutting down the entire fan device 23, but also ensure that the plurality of first pins 211 do not have any electric arc when receiving the plurality of driving signals S11. arc) and positive or negative spike noise (spike noise) generation. In addition, the isolation protection unit 222 can effectively suppress the surge voltage (spike voltage) or surge generated by the main power supply MP2 at the end of the fan device 23 when the control device 22 transmits the plurality of driving signals S11 to the fan device 23. In addition to the inrush current, the isolation protection unit 222 can also cooperate with the first hot-swappable control unit 232 to suppress the spike noise (spike noise) generated at the moment of starting the fan device 23 .

The following is a description of the starting method of the fan system according to the first preferred embodiment of the present invention. Please refer to FIG. 4 , the starting method of the fan system in the first preferred embodiment of the present invention can be applied to the fan system in the above-mentioned first preferred embodiment (as shown in FIG. 3 ), and is used here to apply to the Take the fan system as an example.

In this example, the method for starting the fan system includes steps S1 to S4.

Step S1 receives at least one driving signal S11, S11' at a first time.

Step S2 receives a start signal S12 at a second time, wherein there is an interval between the first time and the second time. Wherein the start signal S12 is a low potential signal or a ground signal.

Step S3 generates at least one first enabling signal S13 according to the enabling signal S12.

Step S4 outputs the driving signal S11 according to the first enabling signal S13, and drives the fan.

Hereinafter, please refer to FIG. 5 to illustrate the fan system according to the second preferred embodiment of the present invention. The fan system includes a connection device 31 , a control device 32 and a fan device 33 . Wherein, the fan system and a connector C3 of a client system end SB3 are electrically connected to each other, and the connection method between the fan system and the client system end SB3 and the structure, characteristics and functions of the client system end SB3 in this embodiment, It is the same as the first preferred embodiment (as shown in FIG. 3 ), so it will not be repeated here. The start signal S22 and at least one drive signal S21, S21' supplied by the client system terminal SB3 of this embodiment have the same characteristics and effects as the start signal S22 and the drive signal S21 of the first preferred embodiment, and This will not be repeated here.

In addition, the connection device 31 of this embodiment has a plurality of pins 311, and the plurality of pins 311 receive the drive signals S21, S21' and a start signal S22 transmitted by the client system terminal SB3.

The control device 32 has a delay enable unit 321 and an isolation protection unit 322 , and is electrically connected to the plurality of pins 311 of the connection device 31 .

The delay enabling unit 321 includes a delay enabling circuit 3211 and a switch element 3212. In addition, the delay enabling circuit 3211 can be a general RC delay circuit in implementation, which has a resistor (not shown) and a resistor (not shown) electrically connected to each other. a capacitor (not shown), and the cooperation of the resistor and the capacitor is used to generate a delay time. When the delay enable circuit 3211 and the switch element 3212 receive the enable signal S22 at the same time, the delay enable circuit 3211 will generate a first enable signal S23 according to the enable signal S22 after the delay time, and the switch The element 3212 is turned on according to the enable signal S22 to generate a second enable signal S24. The first enabling signal S23 and the second enabling signal S24 of this embodiment have the same features and effects as the first enabling signal S23 and the second enabling signal S24 of the first preferred embodiment, so no further description is given here. .

The isolation and protection unit 322 of this embodiment includes at least one first protection circuit 3221 and at least one first isolation circuit 3222, and the first protection circuit 3221 and the first isolation circuit 3222 are electrically connected to each other, and the isolation The protection unit 322 has a plurality of first protection circuits 3221 and a plurality of first isolation circuits 3222 with the same number as an example. In this embodiment, the plurality of first protection circuits 3221 are electrically connected to the fan device 33 and receive the plurality of driving signals S21, and the plurality of first protection circuits 3221 are used to ensure that the plurality of driving signals S21 can be stable sent to the fan device 33, and avoid the generation of reverse current. The plurality of first isolation circuits 3222 are electrically connected to the delay enable circuit 3211 of the delay enable unit 321 and the fan device 33 respectively, and the plurality of first isolation circuits 3222 are used to isolate the plurality of driving signals S21 and the The ground terminal of the first enable signal S13 is used to prevent positive or negative spike noise from damaging the subsequent fan device 33 through the ground loop of the main power supply MP3, and also has the function of transmitting the first enable signal S23.

The fan device 33 of this embodiment includes at least one fan 331, at least one first heat-swap control unit 332, and a control unit 333. In practice, a plurality of fans 331 and a plurality of first heat-swap control units 332 Taking a control unit 333 as an example, the plurality of first heat swap control units 332 are respectively electrically connected to the isolation protection unit 322 and the plurality of fans 331 of the control device 32 . In addition, the fan device 33 further includes a second hot swap control unit 334 electrically connected to the delay enabling unit 321 and the control unit 333 respectively. In addition, the fan device 33 further includes at least one second isolation circuit 335 electrically connected between the control unit 333 and the plurality of fans 331 . In practice, there are a plurality of second isolation circuits 335 , the number of which corresponds to the number of the fans 331 .

The plurality of fans 331, the plurality of first heat-swap control units 332, the control unit 333, the plurality of second isolation circuits 335, and the second heat-swap control unit 334 of the fan device 33 in this embodiment The plurality of fans 231, the plurality of first heat swap control units 232, the control unit 233, the plurality of second isolation circuits 235 and the second thermal The switching control unit 234 has the same features and functions, so it will not be repeated here.

Here, the operation method of the fan system in this embodiment is described as follows: when the fan system and the client system end SB3 are electrically connected to each other, the control device 32 simultaneously receives the A plurality of driving signals S21, S21' and the activation signal S22. At this time, the switch element 3212 generates the second activation signal S24 according to the activation signal S22 and transmits it to the fan device 33, and the delay activation circuit 3211 generates the delay time , and after the delay time, the first enabling signal S23 is generated according to the enabling signal S22, and the isolation protection unit 322 isolates the driving signal S21 and the ground terminal of the first enabling signal S13, and ensures that the driving The signal S21 and the first enabling signal S13 can be directly transmitted to the fan device 33 without reverse input to the client system end SB3 and the delay enabling unit 321, the plurality of first hot swaps of the fan device 33 The control unit 332 transmits the plurality of driving signals S21 to the plurality of fans 331 according to the plurality of first enabling signals S23 to start the plurality of fans 331, and the second hot swap control unit 334 transmits the plurality of driving signals S21 to the plurality of fans 331 according to the plurality of first enabling signals S23. The second enabling signal S24 enables the driving signal S21 ′ to activate the control unit 333 , and the control unit 333 controls the rotation speeds of the plurality of fans 331 with the PWM signal P.

Since the delay activation unit 321 delays the activation time through the delay activation circuit 3211, the fan 331 will not be activated immediately after the control device 32 receives the activation signal S22 and the plurality of driving signals S21, S21' at the same time. After the delay time has elapsed, the delay enabling unit 321 starts to operate according to the start signal S22 and drives the plurality of fans 331 . This way not only enables the delay enabling unit 321 to start or close the function of the entire fan device 33, but also enables the fan system as a whole to reach a stable state within the delay time, in addition to avoiding the plurality of pins 311 from receiving In the moment of the plurality of driving signals S21, S21', in addition to any arc generation, the generation of positive or negative spike noise (spike noise) can also be avoided. Of course, this embodiment also has the same function as that produced by the isolation protection unit 222 of the first preferred embodiment above, so it will not be repeated here.

Please refer to FIG. 6 below, which is the description of the start-up method of the fan system according to the second preferred embodiment of the present invention. Here, the application to the fan system (as shown in FIG. 5 ) is taken as an example.

In this example, the method for starting the fan system includes steps S5 to S7.

Step S5 receives at least one drive signal S21, S21' and one start signal S22.

In step S6 , after a delay time, at least a first enable signal S23 is generated according to the enable signal S22 . The enable signal S22 in this embodiment is a low potential signal or a ground signal.

Step S7 outputs the driving signals S21, S21' according to the first enabling signal S23, and drives the fan.

To sum up, in the fan system and its starting method of the present invention, the length of the plurality of first pins of the connecting device is greater than the length of the second pin, so that the plurality of first pins and After the connector on the client system end is electrically connected, the second pin is electrically connected to the connector and receives the start signal to start the fan (or the plurality of fans), or simultaneously through the delay enabling unit The fan is started according to the start signal after receiving the start signal and the drive signal and after the delay time. In this way, not only the second pin or the delay enabling unit can be used as the function of starting or shutting down the entire fan device, but also the contact between the plurality of first pins or the plurality of pins and the connector can be ensured. There is no electric arc generated at the end, and positive or negative spike noise can be prevented from being transmitted to the control device and the fan device through the plurality of first pins or the plurality of pins. In addition, the fan system can also reach an overall stable state during the delay time. Furthermore, the isolation protection unit can effectively suppress the surge voltage (spike voltage) or surge current (inrush current) generated by the main power circuit at the end of the fan device when the control device transmits the plurality of driving signals to the fan device. ) and the spike noise (spikenoise) generated at the moment of starting the fan unit.

The above descriptions are illustrative only, not restrictive. Any equivalent modifications or changes made without departing from the spirit and scope of the present invention shall be included in the scope of the appended claims.

Claims (13)

1. A fan system comprising: A control device receives at least one driving signal and an activation signal, and generates at least one first activation signal according to the activation signal, and the control device outputs the driving signal and the first activation signal; and a fan device, electrically connected with the control device, and receiving the first activation signal to control the transmission of the driving signal, The controls include: A delay enabling unit, comprising: a delay enable circuit, after a delay time, generates the first enable signal according to the enable signal; and a switch element for generating a second enabling signal according to the enabling signal; and An isolation protection unit, which includes: At least one first protection circuit receives the driving signal; and At least one first isolation circuit is electrically connected to the first protection circuit and the delay enable circuit respectively, so as to isolate the driving signal and the first enable signal. 2. The fan system as claimed in claim 1, wherein the activation signal is a low potential signal or a ground signal. 3. The fan system according to claim 1, wherein the fan device further comprises at least one fan and at least one first heat-swappable control unit, which are respectively electrically connected to the control device and the fan, so as to be activated according to the first signal to transmit the drive signal to the fan. 4. The fan system as claimed in claim 1, wherein the delay enable circuit comprises a resistor and a capacitor electrically connected to each other to generate the delay time. 5. The fan system according to claim 1, wherein the fan device further comprises at least one fan and a control unit, the control device is electrically connected to the fan, and the fan device transmits the drive signal according to the second enabling signal to the control unit, and the control unit generates a pulse width modulation signal to control the speed of the fan. 6. The fan system as claimed in claim 5, wherein the control unit is a microprocessor, a digital signal processor or a control chip. 7. The fan system according to claim 5, wherein the fan device further comprises at least one second isolation circuit, which is electrically connected to the control unit and the fan respectively, and the second isolation circuit transmits the pulse width modulation signal to the fan. 8. The fan system according to claim 5, wherein the fan device further comprises a second heat-swappable control unit electrically connected to the control device and the control unit of the fan device, the second heat-swappable control unit The unit transmits the driving signal to the control unit according to the second enabling signal. 9. The fan system of claim 1, further comprising: A connecting device has a first pin and a second pin, the length of the first pin is greater than the length of the second pin, the first pin receives the driving signal, and the second pin receives the start signal; Wherein, the control device is electrically connected to the connecting device. 10. The fan system according to claim 9, wherein the driving signal and the starting signal are sequentially input to the control device. 11. A fan system comprising: A control device receives at least one driving signal and an activation signal, and generates at least one first activation signal according to the activation signal, and the control device outputs the driving signal and the first activation signal; a fan device, electrically connected to the control device, and receives the first activation signal to control the transmission of the driving signal; and A connecting device has a first pin and a second pin, the length of the first pin is greater than the length of the second pin, the first pin receives the driving signal, and the second pin receives the start signal; Wherein, the control device is electrically connected to the connecting device, The drive signal and the start signal are successively input to the control device, The controls include: an enabling unit comprising: at least one first switching element, to generate the first enabling signal according to the enabling signal; and a second switch element, electrically connected to the first switch element, and according to the first enable signal to generate a second enable signal and An isolation protection unit, which includes: at least one first protection circuit electrically connected to the first pin of the connecting device and the fan device; and At least one first isolation circuit is electrically connected with the first protection circuit and the first switch element respectively, so as to isolate the driving signal and the first enabling signal. 12. A method for starting a fan system, wherein the fan system comprises: A control device receives at least one driving signal and an activation signal, and generates at least one first activation signal according to the activation signal, and the control device outputs the driving signal and the first activation signal; and a fan device, electrically connected with the control device, and receiving the first activation signal to control the transmission of the driving signal, Wherein, the delay enable circuit of the delay enable unit of the control device generates the first enable signal according to the enable signal after a delay time, the switching element of the delayed enabling unit of the control device generates a second enabling signal according to the enabling signal, At least one first protection circuit of an isolation protection unit of the control device receives the driving signal, At least one first isolation circuit of the isolation protection unit of the control device is electrically connected to the first protection circuit and the delay enable circuit respectively, so as to isolate the driving signal and the first enable signal. 13. The activation method according to claim 12, wherein the activation signal is a low potential signal or a ground signal. the

Images