CN107656598B - Heat dissipation system with gas sensor - Google Patents

Abstract

The invention provides a heat dissipation system with gas sensing, which includes a body, a plurality of fans, a plurality of gas sensing units and an external control device connected to the fans. The body has a mounting surface for the fans to be set. The gas sensing units are set on the fans to detect the gas state of each fan to generate a gas sensing signal. The external control device compares the data in the sensing signal transmitted by the gas sensing units with a default data to control and adjust the rotation speed of the fans to allow the fans to flow out a uniform airflow to achieve the effect of reducing noise.

Description

Cooling System with Gas Sensing

technical field

This work relates to a cooling system, especially a cooling system with gas sensing that can control a plurality of fans to flow out uniform airflow. .

Background technique

With the development and progress of network technology, the market and demand for servers are also increasing. The biggest feature of server hosts is their powerful computing power. The heat generated by the server is relatively high, which will affect the operating performance of the server for a long time, and may cause damage to the server. Therefore, in order to solve the above problems, the industry usually installs the server in a well-ventilated cabinet.

Please refer to FIG. 7 , the conventional cabinet structure for accommodating various electronic devices is mainly that there is an accommodation space in the cabinet 51 for accommodating various electronic devices (such as servers or other information equipment), and one side of the cabinet 51 is installed A plurality of fans 52 are provided, and each fan 52 drives the air to flow, so that the generated air can carry the heat generated by each electronic device to the outside of the cabinet 51, so as to achieve the purpose of lowering the temperature of each electronic device. In addition, due to the increase in heat dissipation requirements of the cabinet 51, a plurality of fans 52 on the cabinet 51 are usually connected in parallel to increase the cooling air volume, but each fan 52 is arranged at a different position on one side of the cabinet 51, so that each fan The outflow air volume (or exhaust air volume) of 52 is different, so that the airflow speed of each fan will also be different. Therefore, the air pressure will change due to the different airflow speed, so that the overall flow field at the air outlet of these fans 52 will be different in size and degree. The vortex 6 is the source of the noise.

SUMMARY OF THE INVENTION

In order to effectively solve the above-mentioned problems, one objective of the present invention is to provide a heat dissipation system with gas sensing that can reduce noise.

Another object of the present invention is to provide an external control device that can control and adjust the rotational speed of each fan on a body, thereby changing the airflow speed (or airflow velocity), so as to achieve the effect of uniform airflow from each fan. Cooling system with gas sensing.

Another object of the present invention is to provide a cooling system with gas sensing that changes the airflow speed (or airflow velocity) through the rotation speed of each fan on a body, so as to achieve the effect of uniform airflow from each fan.

In order to achieve the above purpose, the present invention provides a heat dissipation system with gas sensing, comprising a body, a plurality of gas sensing units, a plurality of fans and an external control device, the body has at least one installation surface and an accommodating space, The fans are arranged on the corresponding installation surface, and relative to the accommodating space, the gas sensing units are arranged on the corresponding fans, and each gas sensing unit is used to detect the air flow corresponding to each fan. Gas state (such as gas wind pressure or gas wind speed) to generate a gas sensing signal, and the external control device is connected to the fans and the gas sensing units, and the external control device is based on the gas sensing units. The data in the transmitted gas sensing signal is compared with a default data, and if the data in the gas sensing signal of at least one fan is different, the external control device controls and adjusts the speed of the at least one fan , Through the design of this system, it can effectively make each fan flow out uniform airflow, so as to effectively achieve the effect of reducing noise.

The present invention also provides a heat dissipation system with gas sensing, which includes a body, a plurality of fans and a plurality of gas sensing units, the body has at least one installation surface and an installation space, and the fans are installed in corresponding installations. On the surface, and opposite to the accommodation space, each fan is provided with a processing unit, the processing unit is used to control and drive the fan to operate, the gas sensing units are arranged on the corresponding fans, and each gas The sensing unit is used to detect the gas state (such as gas pressure or gas speed) corresponding to each fan to generate a gas sensing signal, and each gas sensing unit is connected to the processing unit corresponding to each fan ; Wherein the processing unit of each fan performs comparison processing according to the data in the gas sensing signal transmitted by the respective gas sensing unit and a default data, if each processing unit compares the data in the respective gas sensing signal If the data is different from the default data, the speed of each fan is controlled and adjusted. Through the design of this system, each fan can be effectively flowed out of uniform airflow, so as to effectively achieve the effect of reducing noise.

In one implementation, each fan is provided with a frame body and a fan wheel, the frame body has an air inlet side, an air outlet side and a flow channel, the flow channel is located between the air inlet side and the air outlet side, and The air inlet side communicates with the air outlet side, the flow channel and the accommodating space, and the fan wheel is accommodated in the flow channel of the frame body.

In one implementation, the gas sensing units are disposed on the inner side of the frame at the air outlet side or the air inlet side.

In one implementation, the gas sensing units are disposed on the inner side of the frame in the flow channel.

In one implementation, the external control device is accommodated in the accommodating space of the body and outside the corresponding fan, and the external control device is a server or a notebook computer or an intelligent mobile device or a computer.

In one implementation, the processing unit is a processor or a microcontroller.

In one implementation, each gas sensing unit is a wind speed sensor, and the wind speed sensor is used to detect the wind speed of the gas corresponding to the fan, so as to generate the gas sensing signal, and the data report in the gas sensing signal includes a Wind speed data, the default datagram contains a default wind speed data.

In one implementation, each gas sensing unit is a pressure sensor, and the pressure sensor is used to detect the air pressure corresponding to the fan, so as to generate the aforementioned gas sensing signal, and the data report in the aforementioned gas sensing signal includes: A wind pressure data, the default data report contains a default wind pressure data.

In one implementation, each gas sensing unit includes a microcontroller, a pressure sensor, and a temperature sensor, and the pressure sensor is used to detect the air pressure corresponding to the fan to generate a wind pressure sensing signal. The temperature sensor is used for detecting the ambient temperature corresponding to the fan to generate a temperature sensing signal. The microcontroller calculates a temperature value of the temperature sensing signal and a calibration data to obtain an ambient temperature value. The ambient temperature The value is then processed with a wind pressure value of the wind pressure sensing signal to generate the aforementioned gas sensing signal, and the data report in the aforementioned gas sensing signal contains a corrected wind pressure data, and the default data report contains A default wind pressure data.

In one implementation, if the external control device compares the data in the aforementioned sensing signals of the fans with the default data, the external control device does not control and adjust the rotational speed of the fans.

In one implementation, the installation surface has a plurality of installation holes, the installation holes penetrate through the installation surface and communicate with the accommodating space, and the fans are installed in the corresponding installation holes.

Description of drawings

FIG. 1 is a three-dimensional schematic diagram of the heat dissipation system assembly of the present invention.

FIG. 1A is a schematic diagram of the implementation of the cooling system of the present invention.

FIG. 2 is an exploded perspective view of the cooling system of the present invention.

FIG. 3 is a schematic front view of the cooling system of the present invention.

FIG. 4 is a block diagram of the first and second embodiments of the present invention.

FIG. 4A is another block diagram of the third embodiment of the present invention.

FIG. 5A is a schematic cross-sectional view of the combination of the fan and the gas sensing unit of the present invention.

FIG. 5B is a cross-sectional schematic diagram of another combination of a fan and a gas sensing unit of the present invention.

FIG. 5C is a cross-sectional schematic diagram of another combination of a fan and a gas sensing unit of the present invention.

FIG. 6 is a block diagram of the fourth embodiment of the present invention.

FIG. 6A is another block diagram of the fourth embodiment of the present invention.

FIG. 7 is a schematic diagram of an implementation of a conventional cooling system.

Symbol Description

【Symbol Description】

Body…1

Installation side…11

Mounting holes…111

Containing space…13

Fan…2

Processing unit...21

Frame…22

Inlet side…221

Outlet side…222

Runner…23

Fan wheel…24

Gas Sensing Unit…3

Microcontrollers…31

Pressure sensor…32

Temperature sensor…33

External Controls…4

Detailed ways

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.

The present invention provides a heat dissipation system with gas sensing. Please refer to FIGS. 1 , 2 and 4 , which show the combination, decomposition and block diagram of the first embodiment of the present invention. The cooling system with gas sensing includes a body 1, a plurality of fans 2, a plurality of gas sensing units 3 and an external control device 4. The body 1 is represented as a server cabinet in this embodiment, but it is not limited thereto. In a specific implementation, it can also be a communication cabinet or other cabinets that can accommodate a plurality of electronic devices (such as a system monitoring cabinet, a broadcasting system cabinet or a telecommunication cabinet). The body 1 has at least one installation surface 11 and an accommodating space 13, the accommodating space 13 is used to accommodate a plurality of electronic devices (such as servers; not shown in the figure), and the installation surface 11 has a plurality of installation holes 111 , the mounting holes 111 penetrate through the mounting surface 11, and each mounting hole 111 is set at a different position on the mounting surface 11, as shown in FIG. 2, three rows of vertical mounting holes 111 and three rows of horizontal mounting holes 111 are arranged A plurality of mounting holes 111 are substantially rectangular. The fans 2 are disposed in the corresponding mounting holes 111 . The fans 2 represent nine fans 2 in this embodiment, and are used to discharge the hot air generated by the plurality of electronic devices in the body 1 to the outside of the body 1 . In an alternative embodiment, the fans 2 can also be designed to guide the outside air into the body 1 to forcibly dissipate heat from the plurality of electronic devices.

And each fan 2 is provided with a frame body 22 and a fan wheel 24, the frame body 22 has an air inlet side 221, an air outlet side 222 and a flow channel 23, and the flow channel 23 is located on the air inlet side 221 and the outlet side 221. Between the wind sides 222 , the wind inlet side 221 communicates with the wind outlet side 222 , the flow channel 23 and the accommodating space 13 , and the fan wheel 24 is accommodated in the flow channel 23 of the frame body 22 . The gas sensing units 3 are arranged on the corresponding fans 2. The aforementioned gas sensing units 3 in this embodiment represent that one gas sensing unit 3 is a pressure sensor (or wind pressure sensor) arranged on one fan 2, and the gas sensing unit 3 (ie the pressure sensor) is arranged on the inner side of the frame 22 at the outlet side 222 of the fan 2 (as shown in FIG. 5C ), and each gas sensing unit 3 is used to detect Corresponding to the gas state of each fan 2 (eg, the wind pressure of the gas blown out from the air outlet side of each fan), a gas sensing signal is generated, and the data report in the gas sensing signal includes a wind pressure data.

In addition, in the specific implementation, the number of gas sensing units 3 provided in each fan 2 is not limited to the above-mentioned one, and a plurality of gas sensing units 3 (such as two or three) can also be designed in each fan 2 More than one gas sensing unit 3), for example, a gas sensing unit 3 is provided on the inner side of the frame 22 at the air outlet side 222 and the air inlet side 221 of each fan 2, or the flow rate of each fan 2 A gas sensing unit 3 is disposed on the inner side of the frame 22 of the channel 23 and the air outlet side 222 and the air inlet side 221 , thereby increasing the sensing accuracy through a plurality of gas sensing units 3 . In another embodiment, as shown in FIG. 5A , each gas sensing unit 3 is disposed on the inner side of the frame 22 at the air inlet side 221 of each fan 2 . In yet another embodiment, as shown in FIG. 5B , each gas sensing unit 3 is disposed on the inner side of the frame body 22 in the flow channel 23 of each fan 2 .

The aforementioned external control device 4 is electrically connected to the fans 2 and the gas sensing units, and the external control device 4 is represented as a notebook computer in this embodiment. In an alternative embodiment, the external control device 4 can also select an intelligent mobile device or a computer. And the external control device 4 compares the data (such as wind pressure data) in the aforementioned gas sensing signals transmitted by the gas sensing units 3 with a default data (such as default wind pressure data), so as to compare the Whether the wind pressure data in the gas sensing signal of each fan 2 is the same as the default data, if the external control device 4 compares the data in the gas sensing signal of each fan 2 with the default data, then the external control device 4 is the same as the default data. The control device 4 does not control and adjust the rotational speed of the fans 2. At this time, the entire air outlet side 222 of the fans 2 flows out uniform airflow, so as to effectively achieve the effect of reducing noise. If the data (such as wind pressure data) in the gas sensing signal of at least one fan 2 (such as two fans 2 ) compared by the external control device 4 is different from the default data, the external control device 4 according to the default data The data (such as the default wind pressure data) is used as the benchmark to control and adjust the rotational speed of the two fans 2 that are different from the default data, thereby changing the air pressure of the air blown by the fans 2, until all the fans 2 (that is, the fans 2) are adjusted. The data in the gas sensing signal is the same as the aforementioned default data, so that the air outlet side 222 of the fans 2 can flow out uniform airflow, and the overall flow field relative to the air outlet side 222 of the fans 2 can also be uniform, so as to avoid eddy currents produce, and then effectively achieve the effect of reducing noise. The aforementioned default data report contains the default wind pressure data.

In another embodiment, the external control device 4 performs comparison processing according to the internal data (eg, wind pressure data) of the gas sensing signal received by the gas sensing unit 3 of each fan 2 to compare all fans 2 (that is, these fans 2) whether the air pressure data in the gas sensing signals are the same, if the external control device 4 is the same as the data in the gas sensing signals of the fans 2, then the external control device 4 The rotational speed of the fans 2 is not controlled and adjusted. At this time, the entire air outlet side 222 of the fans 2 flows out uniform airflow, so as to effectively achieve the effect of reducing noise. If the external control device 4 has data (eg wind pressure data) in the gas sensing signals of at least one of the fans 2 (eg two fans 2 ) compared to the data (eg wind pressure data) in the gas sensing signals of the fans 2 pressure data) is different, then the external control device 4 will use the data in the gas sensing signals of most of the same fans 2 as a reference to control and adjust the rotational speed of a few different fans 2 (such as two fans 2) to change the fans 2. The air pressure of the air blown out is adjusted until the data in the gas sensing signals of all the fans 2 (ie, the fans 2) are the same, and at this time, the air outlet sides 222 of the fans 2 flow out uniform airflow.

Therefore, through the design of the heat dissipation system of the present invention, it is possible to improve the phenomenon of uneven air flow from the air outlets of the plurality of fans 2 in the conventional cabinet, and to achieve the effect of reducing noise.

Please refer to FIG. 1 and FIG. 4 , which are three-dimensional and block diagrams of the second embodiment of the present invention. With reference to FIGS. 5A , 5B, and 5C, the structure, link relationship and effect of this embodiment are roughly the same as those of the first embodiment described above. The embodiments are the same and will not be repeated here. This embodiment mainly replaces the pressure sensor of the gas sensing unit 3 of the aforementioned first embodiment with a wind speed sensor, and the wind pressure data contained in the preset data report is designed and replaced with a default wind speed data; in the specific implementation , the default data can also contain default wind speed data and wind pressure data. And each gas sensing unit 3 is used to detect the gas state corresponding to each fan 2 (such as the wind speed of the gas blown out from the air outlet side of each fan), so as to generate the aforementioned gas sensing signal, and the aforementioned gas sensing The datagram in the signal contains the aforementioned wind speed data, and the default datagram contains the default wind speed data.

Therefore, the external control device 4 compares the data (such as wind speed data) in the aforementioned gas sensing signals transmitted by the gas sensing units 3 with the default data (such as the default wind speed data), so as to compare the Whether the wind speed data in the gas sensing signal of the fan 2 is the same as the default data, if the external control device 4 compares the data in the gas sensing signal of each fan 2 with the default data, then the external control device 4 The rotational speed of the fans 2 is not controlled and adjusted. At this time, the entire air outlet side 222 of the fans 2 flows out uniform airflow, so as to effectively achieve the effect of reducing noise. If the data (such as wind speed data) in the gas sensing signal of at least one fan 2 (such as two fans 2 ) compared by the external control device 4 is different from the default data, the external control device 4 according to the default data (such as the default wind speed data) as the benchmark, to control and adjust the rotational speed of the two fans 2 that are different from the default data to change the wind speed of the gas blown out by the fans 2, and adjust to the gas sensing of all the fans 2 (that is, the fans 2). The data in the signal is the same as the above-mentioned default data. At this time, the air outlet side 222 of the fans 2 can flow uniform air flow, and the overall flow field of the air outlet side 222 of the fans 2 can also be uniform, so as to avoid the generation of eddy currents. , and then effectively achieve the effect of reducing noise.

Please refer to FIG. 4A , which is a three-dimensional and block schematic diagram of the third embodiment of the present invention, and is supplemented by referring to FIGS. 1 , 5A, 5B, and 5C. The structure, link relationship and effect of the present embodiment are roughly the same as those of the aforementioned third embodiment. One embodiment is the same and will not be repeated here. The difference between the two is that each of the aforementioned gas sensing units 3 includes a microcontroller (MCU) 31 , a pressure sensor 32 and a temperature sensor 33 , and the pressure sensor 32 is used to detect the air outlet side corresponding to the fan 2 . The wind pressure of the air blown out (or flowing out) generates a wind pressure sensing signal, the temperature sensor 33 is used to detect the ambient temperature corresponding to the fan 2 to generate a temperature sensing signal, the microcontroller 31 according to A temperature value of the temperature sensing signal and a calibration data are calculated to obtain an ambient temperature value, and the ambient temperature value is then processed with a wind pressure value of the wind pressure sensing signal, that is, the microcontroller 31 receives After calculating the temperature value (uncompensated temperature value) of the temperature sensing signal and the calibration data, a compensated ambient temperature value (or called the real ambient temperature value) is obtained, and then the microcontroller 31 will compensate the The ambient temperature value of the gas is then calculated with the wind pressure value of the wind pressure sensing signal to generate the aforementioned gas sensing signal and transmit it to the external control device 4 .

And the data report in the gas sensing signal includes a corrected wind pressure data, and the default data report includes the default wind pressure data. The aforementioned calibration data is the calibration coefficient for calibrating the temperature value of the temperature sensing signal; and the manufacturer performs a test procedure to obtain the calibration coefficient of each gas sensing unit 3 manufactured before leaving the factory, and the calibration data is built-in A memory (such as random access memory (RAM), read only memory (ROM), electronically erasable programmable read only memory (EEPROM), flash memory, or other memory) stored in each gas sensing unit 3; Fig. not shown). Therefore, more accurate sensing can be achieved through the gas sensing unit 3 with temperature compensation.

Please refer to FIG. 6 , which is a block diagram of the fourth embodiment of the present invention, and is supplemented by referring to FIGS. 1 , 5A, 5B, and 5C. The structure, link relationship and effect of this embodiment are basically the same as those of the first embodiment, so they will not be repeated here. 2 is replaced by the processing unit 21 in 2. As shown in FIG. 6, each fan 2 is provided with a processing unit 21 and a circuit board. The processing unit 21 can be a central processing unit (CPU) or a microcontroller. (Microprocessor control unit, MCU) is used to control and drive the fan 2 to run, and the processing unit 21 is arranged on the circuit board. And the processing unit 21 of each fan 2 is electrically connected to the corresponding gas sensing unit 3 , and the processing unit 21 of each fan 2 performs comparison processing according to the aforementioned gas sensing signals transmitted by the respective gas sensing units 3 , to compare whether the air pressure data in the respective gas sensing signals is the same as a default data (such as default air pressure data), if the processing unit 21 of each fan 2 compares the data in the respective gas sensing signals (eg wind pressure data) is the same as the aforementioned default data, then the processing unit 21 of each fan 2 does not control and adjust the rotational speed of the respective fan 2, because the aforementioned default data in each fan 2 is the same, so that As a whole, the air outlet sides 222 of the fans 2 flow out uniform airflow, so as to effectively achieve the effect of reducing noise. The aforementioned default data report includes default wind volume data, default wind speed data and default wind pressure data.

If the processing units 21 of the two fans 2 compare the data (such as wind pressure data) in their respective gas sensing signals with the default data (such as the default wind pressure data), then the processing units 21 of the two fans 2 Based on the default data, the speed of the respective fans 2 is controlled and adjusted to change the air pressure of the air blown by the fans 2, and the processing units 21 of the two fans 2 will always adjust themselves until the data in the respective gas sensing signals are the same as the default data. , so that uniform airflow flows out from the air outlet sides 222 of the fans 2 , so as to avoid the generation of eddy currents, thereby effectively achieving the effect of reducing noise.

In another embodiment, each of the aforementioned gas sensing units 3 is designed to replace the pressure sensor with a wind speed sensor, and the wind pressure data included in the preset data report is designed to be replaced with a default wind speed data, that is, each gas The sensing unit 3 is used to detect the gas state corresponding to each fan 2 (such as the wind speed of the gas blown out from the air outlet side 222 of each fan 2 ) to generate the aforementioned gas sensing signal, and the The datagram contains the aforementioned wind speed data, and the default datagram contains the default wind speed data.

In another embodiment, as shown in FIG. 6A , each gas sensing unit 3 includes a microcontroller (MCU) 31 , a pressure sensor 32 and a temperature sensor 33 , and the pressure sensor 32 is used to detect the corresponding fan 2 The wind pressure of the air blown out (or flowing out) from the air outlet side 222 of the fan 2 to generate a wind pressure sensing signal, the temperature sensor 33 is used to detect the ambient temperature corresponding to the fan 2 to generate a temperature sensing signal, and The microcontroller 31 performs arithmetic processing on the temperature value (uncompensated temperature value) received from the temperature sensing signal and the calibration data to obtain a compensated ambient temperature value (or a real ambient temperature value), and then the The microcontroller 31 performs arithmetic processing on the compensated ambient temperature value and the wind pressure value of the wind pressure sensing signal, so as to generate the aforementioned gas sensing signal and transmit it to the corresponding fan 2 . In an alternative embodiment, the aforementioned microcontroller 31 of the gas sensing unit 3 can also be omitted, and the processing unit 21 of the respective fan 2 is used to replace the arithmetic processing.

And the data report in the gas sensing signal includes a corrected wind pressure data, and the default data report includes the default wind pressure data. The aforementioned calibration data is the calibration coefficient for calibrating the temperature value of the temperature sensing signal; and the manufacturer performs a test procedure to obtain the calibration coefficient of each gas sensing unit 3 manufactured before leaving the factory, and the calibration data is built-in A memory (such as random access memory (RAM), read only memory (ROM), electronically erasable programmable read only memory (EEPROM), flash memory, or other memory) stored in each gas sensing unit 3; Fig. not shown). Therefore, more accurate sensing can be achieved through the gas sensing unit 3 with temperature compensation.

Therefore, through the design of the heat dissipation system of the present invention, it is possible to improve the phenomenon of uneven air flow from the air outlets of the plurality of fans 2 in the conventional cabinet, and to achieve the effect of reducing noise.

Claims (19)

1. A heat dissipation system with gas sensor includes:

a body having at least one mounting surface and an accommodating space;

a plurality of fans arranged on the corresponding mounting surface and corresponding to the accommodating space;

the plurality of gas sensing units are arranged on the corresponding fans, and each gas sensing unit is used for detecting the gas state corresponding to each fan so as to generate a gas sensing signal; and

and the external control device is connected with the fans and the gas sensing units, compares the data in the gas sensing signals transmitted by the gas sensing units with default data, and controls and adjusts the rotating speed of at least one fan if the data in the gas sensing signals of at least one fan is different from the default data.

2. The heat dissipation system with gas sensor as claimed in claim 1, wherein each fan has a frame and a fan wheel, the frame has an air inlet side, an air outlet side and a flow channel, the flow channel is located between the air inlet side and the air outlet side, the air inlet side communicates with the air outlet side and the flow channel and the receiving space, and the fan wheel is received in the flow channel of the frame.

3. The heat dissipation system with gas sensor as claimed in claim 2, wherein the gas sensor units are disposed on the inner side of the frame at the air outlet side or the air inlet side.

4. The heat dissipation system with gas sensing as recited in claim 2, wherein the gas sensing units are disposed on the inner side of the frame in the flow channel.

5. The heat dissipation system with gas sensor as claimed in claim 1, wherein the external control device is housed in the housing space of the housing and located outside the fans, and the external control device is a notebook computer, an intelligent mobile device or a computer.

6. The heat dissipation system with gas sensor as claimed in claim 3 or 4, wherein each gas sensor unit is a wind speed sensor for detecting the wind speed of the gas corresponding to the fan to generate the gas sensor signal, and the data in the gas sensor signal includes a wind speed data, and the default data includes a default wind speed data.

7. The heat dissipation system with gas sensor as claimed in claim 3 or 4, wherein each gas sensor unit is a pressure sensor for detecting the pressure of the gas corresponding to the fan to generate the gas sensor signal, and the data in the gas sensor signal includes a wind pressure data, and the default data includes a default wind pressure data.

8. The heat dissipation system with gas sensing as claimed in claim 3 or 4, wherein each gas sensing unit includes a microcontroller, a pressure sensor and a temperature sensor, the pressure sensor is used to detect the gas pressure corresponding to the fan to generate a wind pressure sensing signal, the temperature sensor is used to detect the ambient temperature corresponding to the fan to generate a temperature sensing signal, the microcontroller calculates a temperature value according to a temperature value of the temperature sensing signal and a calibration data to obtain an ambient temperature value, the ambient temperature value is further calculated with a wind pressure value of the wind pressure sensing signal to generate the gas sensing signal, and the data in the gas sensing signal includes a corrected wind pressure data, the default data includes a default wind pressure data.

9. The heat dissipation system with gas sensing as claimed in claim 1, wherein if the data in the gas sensing signal compared with the external control device is the same as the default data, the external control device does not control and adjust the rotation speed of the fans.

10. The heat dissipation system with gas sensor as recited in claim 1, wherein the mounting surface has a plurality of mounting holes penetrating through the mounting surface and communicating with the accommodating space, and the fans are mounted in the corresponding mounting holes.

11. A heat dissipation system with gas sensor includes:

a body having at least one mounting surface and an accommodating space;

a plurality of fans which are arranged on the corresponding installation surface and are opposite to the containing space, and a processing unit is arranged in each fan and is used for controlling and driving the fan to operate;

the plurality of gas sensing units are arranged on the corresponding fans, each gas sensing unit is used for sensing the gas state corresponding to each fan so as to generate a gas sensing signal, and each gas sensing unit is connected with the processing unit corresponding to each fan; and

the processing unit of each fan compares the data in the gas sensing signal transmitted by the gas sensing unit with default data, and controls and adjusts the rotating speed of each fan if the data in the gas sensing signal compared by each processing unit is different from the default data.

12. The heat dissipation system with gas sensor as claimed in claim 11, wherein each fan has a frame and a fan wheel, the frame has an air inlet side, an air outlet side and a flow channel, the flow channel is located between the air inlet side and the air outlet side, the air inlet side communicates with the air outlet side and the flow channel and the receiving space, and the fan wheel is received in the flow channel of the frame.

13. The heat dissipation system with gas sensor as claimed in claim 12, wherein the gas sensor units are disposed on the inner side of the frame at the air outlet side or the air inlet side.

14. The heat dissipation system with gas sensing as recited in claim 12, wherein the gas sensing units are disposed on an inner side of the frame in the flow channel.

15. The heat dissipation system with gas sensing as recited in claim 11, wherein the processing unit is a processor or a microcontroller.

16. The heat dissipation system with gas sensing as recited in claim 11, wherein the mounting surface has a plurality of mounting holes penetrating through the mounting surface and communicating with the accommodating space, the fans being mounted in the corresponding mounting holes.

17. The heat dissipation system with gas sensor as claimed in claim 13 or 14, wherein each gas sensor unit is a wind speed sensor for detecting the wind speed of the gas corresponding to the fan to generate the gas sensor signal, and the data in the gas sensor signal includes a wind speed data, and the default data includes a default wind speed data.

18. The heat dissipation system with gas sensor as claimed in claim 13 or 14, wherein each gas sensor unit is a pressure sensor for detecting the pressure of the gas corresponding to the fan to generate the gas sensor signal, and the data in the gas sensor signal includes a wind pressure data, and the default data includes a default wind pressure data.

19. The heat dissipation system with gas sensing as claimed in claim 13 or 14, wherein each gas sensing unit includes a microcontroller, a pressure sensor and a temperature sensor, the pressure sensor is used to detect the gas pressure corresponding to the fan to generate a wind pressure sensing signal, the temperature sensor is used to detect the ambient temperature corresponding to the fan to generate a temperature sensing signal, the microcontroller calculates a temperature value according to a temperature value of the temperature sensing signal and a calibration data to obtain an ambient temperature value, the ambient temperature value is further calculated with a wind pressure value of the wind pressure sensing signal to generate the gas sensing signal, and the data in the gas sensing signal includes a corrected wind pressure data, the default data includes a default wind pressure data.

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