CN210829825U - Universal fan control system - Google Patents
Universal fan control system Download PDFInfo
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- CN210829825U CN210829825U CN201921865327.XU CN201921865327U CN210829825U CN 210829825 U CN210829825 U CN 210829825U CN 201921865327 U CN201921865327 U CN 201921865327U CN 210829825 U CN210829825 U CN 210829825U
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Abstract
The utility model provides a general type fan control system, including main control unit, fan controller and a plurality of fan, main control unit and fan controller all have communication interface, and fan controller can the main control unit of adaptation different grade type, has strengthened fan controller's application scope, just fan controller includes PWM control module, can convert main control unit's control command into PWM signal to the rotational speed of control fan, simultaneously, the impulse that forwards of fan passes through fan controller feedback to main control unit in, thereby realized closed-loop control, the utility model is suitable for a fan of different producers, and scalability is strong, and the interference killing feature is strong.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner heat dissipation and specifically relates to a general type fan control system is related to.
Background
Computer room, communication base station computer room, communication equipment computer room because there are a large amount of consumer in high-speed operation, a large amount of switching power supply is consuming energy, and a large amount of heats of making, these heats can reduce the life of equipment, reduce the reliability of equipment, increase the fault rate of equipment. In such a situation, the precision air conditioner of the machine room is largely used for cooling the whole machine room and equipment. With the rise of domestic 5G, the demand of base stations is larger and larger, and the demand of precision air conditioners is larger and larger, so that higher energy-saving requirements are provided for control systems of precision air conditioners, and the requirements are controlled more accurately. The control method comprises the steps of on-off control and PWM control according to a control mode, and active PWM control and passive PWM control according to a control signal; and is classified into a communication type and a non-communication type according to the control intelligence type; and the control signal quantity is divided into single-path centralized control and multi-path time-sharing redundancy control.
Existing control systems, such as simple ON-OFF control, operate the fan at full speed when the temperature exceeds a preset temperature; after the set point is reached, the fan is stopped, and the control error is large in the mode, so that energy is not saved; for the PWM control mode, the existing control system only provides a single type of PWM model, an air conditioner host factory selects a corresponding fan according to the PWM model, the limitation is large, and different fan models need fan controllers of different models and controllers cannot be interchanged; meanwhile, PWM is single-path output, and the start and stop of a plurality of fans are synchronously controlled. In addition, many existing fan controllers are without communication function, and are hard connected by electric signals, so that the reliability expansibility is poor.
Disclosure of Invention
In order to solve the above problems, the utility model provides a general type fan control system.
The main contents of the utility model include:
a general fan control system comprises a main controller, a fan controller and a plurality of fans; the fan controller comprises an MCU module, a PWM control module, a fast pulse input interface and a PWM signal output interface, wherein the fast pulse input interface is connected with a speed feedback end of the fan; the PWM control module transmits a PWM signal to the fan through the PWM signal output interface; the PWM control module is connected with the MCU module, and the MCU module is connected with the communication interface of the main controller through the communication interface of the fan controller.
Preferably, the PWM control module includes an active PWM control circuit and a passive PWM control circuit, and the active PWM control circuit and the passive PWM control circuit are connected to the PWM signal output interface through a jumper.
Preferably, the communication interface of the main controller and the communication interface of the fan controller interface are MODBUS-RTU communication interfaces.
The main controller is connected with the fan controllers in a one-to-one correspondence mode, or the main controller is connected with the fan controllers in a one-to-many mode.
Preferably, the main controller further comprises a main PWM signal output interface for connecting to a fan.
Preferably, the number of the main PWM signal output interfaces is 2.
Preferably, the number of the PWM signal output interfaces is 2, fan grouping control is supported, redundancy is mutually backed up, and robustness is enhanced.
The beneficial effects of the utility model reside in that: the utility model provides a general type fan control system, fan controller keep the communication through the communication interface of standard and main control unit, receive main control unit's control command, convert this control command into suitable PWM signal to the rotational speed of control fan, simultaneously, the pulse that forwards of fan passes through in fan controller feeds back to main control unit, thereby has realized closed-loop control. The utility model discloses a fan control system not only can be applicable to the fan of different fan producers, has good general type, and can realize reading fast of fan control, fan state, rotational speed, and is energy-concerving and environment-protective, and the integrated level is high, the interference killing feature is strong.
Drawings
Fig. 1 is a schematic view of the present invention.
Detailed Description
The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.
Please refer to fig. 1. The utility model provides a general fan control system, which comprises a main controller, a fan controller and a plurality of fans; the main control unit is air conditioning system's controller, and it has standard communication interface, and is same, fan controller also has same standard communication interface, in this embodiment, main control unit with fan controller's communication interface is MODBUS-RTU communication mouth, and it supports standard MODBUS-RTU communication protocol, has high integration, scalability and strong anti-jamming advantage for fan controller and main control unit can be non-differential matching, this fan controller can with the main control unit phase-match of difference, the user integration of being convenient for, and every main control unit can communicate with a fan controller, also can communicate with a plurality of fan controllers, promptly main control unit with the fan connector can the one-to-one be connected, also can be a pair of many connections.
Specifically, the fan controller comprises an MCU module, a PWM control module, a fast pulse input interface and a PWM signal output interface, wherein the MCU module is used for processing control commands of a main controller and state data such as rotating speed fed back by a fan, the PWM control module comprises an active PWM control circuit and a passive PWM control circuit so as to transmit active PWM signals or passive PWM signals to the fan, the fast pulse input interface is connected with a speed feedback end of the fan and receives rotating speed information of the fan and transmits the rotating speed information to the MCU module, the MCU module transmits the data such as the rotating speed to the main controller through a communication interface of the fan controller, and the main controller sends out control commands to the fan according to other environment data; namely, the PWM control module transmits a PWM signal to the fan through the PWM signal output interface; the PWM control module is connected with the MCU module, and the MCU module is connected with the communication interface of the main controller through the communication interface of the fan controller.
The active PWM control circuit and the passive PWM control circuit are connected with the PWM signal output interface through the jumper, so that PWM input signals can be freely selected according to the type of PWM input of the fan, and the active PWM control circuit and the passive PWM control circuit are well suitable for the fan produced by a non-ventilation fan manufacturer.
Furthermore, the number of the PWM signal output interfaces is 2, that is, each fan controller has 2 paths of PWM output, and can support 8 fans, and the 2 paths of PWM output enable the fans to be controlled in groups, and redundancy is mutually backed up, so that robustness is enhanced.
In addition, the main controller also comprises a main PWM signal output interface, namely the main controller can also directly control the fan and send PWM control signals to the fan, and similarly, a PWM control module is also integrated in the main controller, and further, an active PWM circuit and a passive PWM circuit can be respectively integrated in the main controller, so that the main controller can be adapted to fans of different types.
In one embodiment, the number of the main PWM signal output interfaces is 2, that is, the main controller has 2 PWM outputs, which can support 8 fans, and for a single fan controller, in this embodiment, it can support 16 fans, which enhances the cooling capability.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. A general fan control system is characterized by comprising a main controller, a fan controller and a plurality of fans; the fan controller comprises an MCU module, a PWM control module, a fast pulse input interface and a PWM signal output interface, wherein the fast pulse input interface is connected with a speed feedback end of the fan; the PWM control module transmits a PWM signal to the fan through the PWM signal output interface; the PWM control module is connected with the MCU module, and the MCU module is connected with the communication interface of the main controller through the communication interface of the fan controller.
2. The system of claim 1, wherein the PWM control module comprises an active PWM control circuit and a passive PWM control circuit, and the active PWM control circuit and the passive PWM control circuit are connected to the PWM signal output interface through a jumper.
3. The system of claim 1, wherein the communication interface of the main controller and the communication interface of the fan controller interface are MODBUS-RTU communication interfaces.
4. The system as claimed in claim 1, wherein the main controller and the fan controllers are connected in a one-to-one correspondence, or the main controller and the fan controllers are connected in a one-to-many correspondence.
5. The universal fan control system as claimed in claim 1, wherein said main controller further comprises a main PWM signal output interface for connecting to a fan.
6. The system as claimed in claim 5, wherein the number of the main PWM signal output ports is 2.
7. The system as claimed in claim 1, wherein the number of the PWM signal output ports is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921865327.XU CN210829825U (en) | 2019-11-01 | 2019-11-01 | Universal fan control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921865327.XU CN210829825U (en) | 2019-11-01 | 2019-11-01 | Universal fan control system |
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| CN210829825U true CN210829825U (en) | 2020-06-23 |
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| CN201921865327.XU Active CN210829825U (en) | 2019-11-01 | 2019-11-01 | Universal fan control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460053A (en) * | 2020-11-12 | 2021-03-09 | 山东云海国创云计算装备产业创新中心有限公司 | Fan control method, system, equipment and storage medium |
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2019
- 2019-11-01 CN CN201921865327.XU patent/CN210829825U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460053A (en) * | 2020-11-12 | 2021-03-09 | 山东云海国创云计算装备产业创新中心有限公司 | Fan control method, system, equipment and storage medium |
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