CN111852926A - Energy-saving fan control system with temperature and humidity detection function and control method - Google Patents
Energy-saving fan control system with temperature and humidity detection function and control method Download PDFInfo
- Publication number
- CN111852926A CN111852926A CN202010712977.1A CN202010712977A CN111852926A CN 111852926 A CN111852926 A CN 111852926A CN 202010712977 A CN202010712977 A CN 202010712977A CN 111852926 A CN111852926 A CN 111852926A
- Authority
- CN
- China
- Prior art keywords
- temperature
- fan
- gear
- module
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/007—Conjoint control of two or more different functions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The energy-saving fan control system with the temperature and humidity detection function comprises a frequency conversion control module, a temperature and humidity acquisition module, a display module, a bypass module and a plurality of fans, wherein the power input end of the frequency conversion control module is connected to a three-phase alternating current power supply, and the power output end of the frequency conversion control module is connected with the fans through the bypass module; the variable frequency control module is composed of IGBT devices, and the variable frequency control module adjusts the frequency of output alternating current by controlling the on and off of the IGBT devices so as to control the fan to carry out variable frequency operation according to the environmental temperature parameters. According to the fan control system and method, the variable frequency control module controls the fan to perform variable frequency or shift up and shift down operation in the gear according to the environment temperature information, so that the external environment temperature can be controlled within a set range, and the aim of energy conservation is fulfilled; when one fan breaks down, the power supply of the fan with the fault is cut off, and the normal operation of other fans is not affected.
Description
Technical Field
The invention relates to a fan control system and a control method, in particular to an energy-saving fan control system with a temperature and humidity detection function and a control method.
Background
In the current industrial production, most energy-saving fans are manufactured based on redesign of structures, the size of a shell is increased, the energy-saving effect is limited, the environmental adaptability of the fans is poor, the fans can only radiate heat naturally once the fans break down, and the economic loss caused by certain sites with strict requirements, such as coal mines and the like, cannot be estimated.
Patent number "201811263408.2" mentions that: this energy-efficient fan uses through the cooperation of driving motor, main bevel gear, main drive pole, vice bevel gear, main drive gear, vice driven lever, first gear, driving and driven gear, vice driven gear, connecting rod and second gear, has improved the security and the practicality of fan. The problem entry point in the patent of the invention is that the mechanical structure is adjusted, all fans cannot be compatible, and the volume is obviously larger compared with the conventional fan.
As mentioned in the utility model patent with patent number "201721370856.3": this intelligent energy-efficient fan's advantage lies in: the reinforcing ribs are combined with the reinforcing ribs, so that the structure can be reinforced, the stability of the structure can be improved, the energy-saving performance can be further improved, and the design is more reasonable; simple structure and easy manufacture. No 'intelligent' two characters are embodied in the patent, and the cost performance is not high due to the fact that reinforcing ribs are used excessively. The comprehensive control system of the energy-saving fan has the functions of temperature and humidity acquisition, GPRS remote control and automatic bypass, can automatically change the running frequency of the fan, enhances the use science and technology sense, and is simple to operate and high in cost performance.
Disclosure of Invention
In order to overcome the defects of the technical problems, the invention provides an energy-saving fan control system with a temperature and humidity detection function and a control method.
The energy-saving fan control system with the temperature and humidity detection function comprises a frequency conversion control module, a temperature and humidity acquisition module, a display module, a bypass module and a plurality of fans, wherein the temperature and humidity acquisition module and the display module are connected with the frequency conversion control module through a communication bus; the method is characterized in that: the frequency conversion control module collects temperature and humidity information of an external environment through the temperature and humidity acquisition module, displays the environment temperature and humidity through the display module and sets the upper limit and the lower limit of the environment temperature; the power supply input end of the variable frequency control module is connected to a three-phase alternating current power supply, and the power supply output end of the variable frequency control module is connected with the fan through the bypass module; the variable frequency control module is composed of IGBT devices, and the variable frequency control module adjusts the frequency of output alternating current by controlling the on and off of the IGBT devices so as to control the fan to carry out variable frequency operation according to the environmental temperature parameters.
According to the energy-saving fan control system with the temperature and humidity detection function, the bypass module is composed of the circuit breaker, the intermediate relay and the thermal relay, the upper port of the circuit breaker is connected to the power output end of the frequency conversion control module, the lower port of the circuit breaker is connected to the upper port of the intermediate relay, the lower port of the intermediate relay is connected to the upper port of the thermal relay, and the lower port of the thermal relay is connected to the power port of the fan; and two ends of the coil of the intermediate relay and the normally closed point of the thermal relay after being connected in series are respectively connected with the output end of the frequency conversion control module and the power ground.
The energy-saving fan control system with the temperature and humidity detection function comprises a GPRS communication module, wherein the GPRS communication module is connected with a variable frequency control module through a communication bus, and the variable frequency control module is communicated with a smart phone or a PC through the GPRS communication module so as to realize the setting of fan operation parameters through the smart phone or the PC.
According to the energy-saving fan control system with the temperature and humidity detection function, the temperature and humidity acquisition module, the GPRS communication module, the display module and the frequency conversion control module are all RS485 buses.
According to the energy-saving fan control system with the temperature and humidity detection function, the power supply connected with the input end of the frequency conversion control module is a three-phase four-wire system 380V alternating current power supply.
The invention discloses a control method of an energy-saving fan control system with a temperature and humidity detection function, which is characterized by comprising the following steps of:
a) the gear setting is to set the fan operating frequency to be 4 gears including 0 gear, 1 gear, 2 gears and 3 gears, and the frequency range corresponding to each gear is as follows: and (3) gear 0: 0 Hz-15 Hz, 1 gear: 16 Hz-25 Hz, 2 gear: 26 Hz-35 Hz, 3 th gear: 36 Hz-50 Hz;
b) setting an upper limit and a lower limit of the temperature, and setting the upper limit and the lower limit of the temperature of the environment according to the specific requirements of the working environment so as to control the temperature of the environment between the lower limit and the upper limit by controlling the running state of the fan;
c) the method comprises the steps of (1) 0-gear frequency conversion control, controlling fans to operate in a 0-gear after a frequency conversion control module is started, and if the ambient temperature is greater than a temperature upper limit value and continuously exceeds 5s, increasing the operating frequency of all the fans by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from 0 gear to 1 gear;
d) 1-gear variable frequency control, wherein when the fan runs in 1 gear, if the ambient temperature is greater than the upper limit value of the temperature and continuously exceeds 5s, the running frequency of all fans is increased by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from 1 gear to 2 gears; if the environmental temperature is less than the upper limit value of the temperature and continuously exceeds 5min, reducing the running state of the fan from 1 gear to 0 gear;
e) 2, performing frequency conversion control, namely, when the fans operate in 2 gears, if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 5s, increasing the operating frequency of all the fans by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from the 2 gear to the 3 gear; if the environmental temperature is less than the upper temperature limit value and continuously exceeds 5min, reducing the running state of the fan from 2-gear to 1-gear;
f) 3, performing frequency conversion control in 3 gears, and if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 5s when the fans operate in 3 gears, increasing the operating frequency of all the fans by 1 Hz; and if the ambient temperature is lower than the upper temperature limit value and continuously exceeds 5min, reducing the running state of the fan from 3-gear to 2-gear.
The invention has the beneficial effects that: according to the fan control system and the method, the temperature and humidity acquisition module, the GPRS communication module and the display module which are connected with the frequency conversion control module are arranged, the frequency conversion control module supplies power to the fan through the bypass module, the display module is used for displaying information and setting upper and lower limits of temperature, and in the working process, the frequency conversion control module controls the operation of the fan according to the acquired environmental temperature information and the set upper and lower limits of temperature, controls the fan to perform frequency conversion or gear up and gear down operation in a gear, realizes the frequency conversion operation control of the fan, realizes the control of the external environment temperature in a set range, and also realizes the purpose of energy conservation; when one fan breaks down, the frequency conversion control module cuts off the power supply of the fan with the fault through the bypass module, and the normal operation of other fans is not affected.
Drawings
Fig. 1 is a schematic circuit diagram of an energy-saving fan control system with a temperature and humidity detection function according to the present invention;
fig. 2 is a secondary wiring diagram of the energy-saving fan control system with temperature and humidity detection function according to the present invention;
fig. 3 is a control schematic diagram of the down-shift or up-shift of the energy-saving fan control system with temperature and humidity detection function according to the present invention.
In the figure: 1 frequency conversion control module, 2 humiture collection module, 3 GPRS communication module, 4 display module, 5 bypass modules, 6 fans, 7 circuit breakers, 8 intermediate relay, 9 thermorelay.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1, a schematic circuit diagram of an energy-saving fan control system with a temperature and humidity detection function according to the present invention is provided, which is composed of a frequency conversion control module 1, a temperature and humidity acquisition module 2, a GPRS communication module 3, a display module 4, a bypass module 5 and a fan 6, wherein the frequency conversion control module 1 is used for data acquisition and control output, the temperature and humidity acquisition module 2, the GPRS module 3, the display module 4 and the frequency conversion control module 1 are all connected via a communication bus, the communication bus can adopt an RS485 communication bus, the temperature and humidity acquisition module 2 is used for acquiring temperature and humidity information of the surrounding environment, the frequency conversion control module 1 can realize communication with a smart phone or a PC via the GPRS communication module 3, so as to monitor the operation state of the fan 6 via the smart phone or the PC and set frequency conversion parameters of the fan. The display module 4 is used for displaying information such as ambient temperature and humidity, and can also set an upper limit value and a lower limit value of the ambient temperature.
The power input end of the frequency conversion control module 1 is connected to an alternating current power supply, the alternating current power supply is a 380V alternating current power supply of a three-phase four-wire system, the power output of the frequency conversion control module 1 supplies power to the fan 6 through the bypass module 5, the fan which breaks down can be cut off when the frequency conversion operation control is carried out on the fan 6, the bypass of the fan which breaks down is realized, and the operation of a normal fan cannot be influenced. The frequency conversion control module 1 is provided with an IGBT device, and controls the frequency of alternating current input to the fan by controlling the on and off states of the IGBT device so as to realize the frequency conversion operation of the fan 6.
The number of the fan 6, the circuit breaker 7, the intermediate relays 8 and the thermal relays 9 is 3, the circuit breaker 7 realizes on-off control of the fan 6, the thermal relays 9 realize overheat protection of the fan, as shown in fig. 2, a secondary wiring diagram of the energy-saving fan control system with the temperature and humidity detection function is provided, the upper ports of the 1# circuit breaker, the 2# circuit breaker and the 3# circuit breaker are all connected with the power output end of the frequency conversion control module 1, the lower ports of the 1# circuit breaker, the 2# circuit breaker and the 3# circuit breaker are respectively connected with the upper ports of the 1# intermediate relay, the 2# intermediate relay and the 3# intermediate relay, the lower ports of the 1# intermediate relay, the 2# intermediate relay and the 3# intermediate relay are respectively connected with the upper ports of the 1# thermal relay, the 2# thermal relay and the 3# thermal relay, and the lower ports of the 1# thermal relay, the 2# thermal relay and the 3# thermal relay are respectively connected, And power terminals of the 2# fan and the 3# fan.
Coils of the 1# thermal relay, the 2# thermal relay and the 3# thermal relay are respectively connected with two ends of a normally closed point of the 1# intermediate relay, the 2# intermediate relay and the 3# intermediate relay in series and then are respectively connected with an output end of the frequency conversion control module 1 and a power ground, so that when a certain fan 6 is detected to have a fault, the frequency conversion control module 1 can disconnect the fan with the fault by outputting a low level; meanwhile, if the normally closed point of the thermal relay 9 is disconnected when overcurrent occurs in the running process of the fan, the power supply to the corresponding fan can be cut off, so that the fault fan is protected, and the running of other normal fans is not influenced.
As shown in fig. 3, a control schematic diagram of the downshift or upshift of the energy-saving fan control system with temperature and humidity detection function according to the present invention is provided, and the control schematic diagram is implemented by the following steps:
a) the gear setting is to set the fan operating frequency to be 4 gears including 0 gear, 1 gear, 2 gears and 3 gears, and the frequency range corresponding to each gear is as follows: and (3) gear 0: 0 Hz-15 Hz, 1 gear: 16 Hz-25 Hz, 2 gear: 26 Hz-35 Hz, 3 th gear: 36 Hz-50 Hz;
b) setting an upper limit and a lower limit of the temperature, and setting the upper limit and the lower limit of the temperature of the environment according to the specific requirements of the working environment so as to control the temperature of the environment between the lower limit and the upper limit by controlling the running state of the fan;
c) the method comprises the steps of (1) 0-gear frequency conversion control, controlling fans to operate in a 0-gear after a frequency conversion control module is started, and if the ambient temperature is greater than a temperature upper limit value and continuously exceeds 5s, increasing the operating frequency of all the fans by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from 0 gear to 1 gear;
d) 1-gear variable frequency control, wherein when the fan runs in 1 gear, if the ambient temperature is greater than the upper limit value of the temperature and continuously exceeds 5s, the running frequency of all fans is increased by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from 1 gear to 2 gears; if the environmental temperature is less than the upper limit value of the temperature and continuously exceeds 5min, reducing the running state of the fan from 1 gear to 0 gear;
e) 2, performing frequency conversion control, namely, when the fans operate in 2 gears, if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 5s, increasing the operating frequency of all the fans by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from the 2 gear to the 3 gear; if the environmental temperature is less than the upper temperature limit value and continuously exceeds 5min, reducing the running state of the fan from 2-gear to 1-gear;
f) 3, performing frequency conversion control in 3 gears, and if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 5s when the fans operate in 3 gears, increasing the operating frequency of all the fans by 1 Hz; and if the ambient temperature is lower than the upper temperature limit value and continuously exceeds 5min, reducing the running state of the fan from 3-gear to 2-gear.
Therefore, the energy-saving fan comprehensive control system with the temperature and humidity detection function and the control method have the characteristics of saving electric energy, being simple in structure, being capable of being remotely controlled and automatically bypassing, and a plurality of fans can share one variable frequency control module when being operated in parallel, so that the installation space is greatly saved, and the cost performance is further improved.
Claims (6)
1. An energy-saving fan control system with a temperature and humidity detection function comprises a frequency conversion control module (1), a temperature and humidity acquisition module (2), a display module (4), a bypass module (5) and a plurality of fans (6), wherein the temperature and humidity acquisition module and the display module are connected with the frequency conversion control module through a communication bus; the method is characterized in that: the frequency conversion control module collects temperature and humidity information of an external environment through the temperature and humidity acquisition module, displays the environment temperature and humidity through the display module and sets the upper limit and the lower limit of the environment temperature; the power supply input end of the variable frequency control module is connected to a three-phase alternating current power supply, and the power supply output end of the variable frequency control module is connected with the fan through the bypass module; the variable frequency control module is composed of IGBT devices, and the variable frequency control module adjusts the frequency of output alternating current by controlling the on and off of the IGBT devices so as to control the fan to carry out variable frequency operation according to the environmental temperature parameters.
2. The energy-saving fan control system with the temperature and humidity detection function according to claim 1, characterized in that: the bypass module (5) consists of a circuit breaker (7), an intermediate relay (8) and a thermal relay (9), wherein the upper port of the circuit breaker is connected to the power output end of the frequency conversion control module (1), the lower port of the circuit breaker is connected to the upper port of the intermediate relay, the lower port of the intermediate relay is connected to the upper port of the thermal relay, and the lower port of the thermal relay is connected to the power port of the fan (6); and two ends of the coil of the intermediate relay and the normally closed point of the thermal relay after being connected in series are respectively connected with the output end of the frequency conversion control module and the power ground.
3. The energy-saving fan control system with the temperature and humidity detection function according to claim 1 or 2, characterized in that: the fan operation parameter setting device comprises a GPRS communication module (3), wherein the GPRS communication module is connected with a frequency conversion control module (1) through a communication bus, and the frequency conversion control module is communicated with a smart phone or a PC through the GPRS communication module so as to set fan operation parameters through the smart phone or the PC.
4. The energy-saving fan control system with a temperature and humidity detection function according to claim 3, characterized in that: and communication buses of the temperature and humidity acquisition module (2), the GPRS communication module (3), the display module (4) and the frequency conversion control module (1) are RS485 buses.
5. The energy-saving fan control system with the temperature and humidity detection function according to claim 1 or 2, characterized in that: the power supply connected with the input end of the variable frequency control module (1) is a three-phase four-wire system 380V alternating current power supply.
6. The control method of the energy-saving fan control system with the temperature and humidity detection function based on the claim 1 is characterized by comprising the following steps:
a) the gear setting is to set the fan operating frequency to be 4 gears including 0 gear, 1 gear, 2 gears and 3 gears, and the frequency range corresponding to each gear is as follows: and (3) gear 0: 0 Hz-15 Hz, 1 gear: 16 Hz-25 Hz, 2 gear: 26 Hz-35 Hz, 3 th gear: 36 Hz-50 Hz;
b) setting an upper limit and a lower limit of the temperature, and setting the upper limit and the lower limit of the temperature of the environment according to the specific requirements of the working environment so as to control the temperature of the environment between the lower limit and the upper limit by controlling the running state of the fan;
c) the method comprises the steps of (1) 0-gear frequency conversion control, controlling fans to operate in a 0-gear after a frequency conversion control module is started, and if the ambient temperature is greater than a temperature upper limit value and continuously exceeds 5s, increasing the operating frequency of all the fans by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from 0 gear to 1 gear;
d) 1-gear variable frequency control, wherein when the fan runs in 1 gear, if the ambient temperature is greater than the upper limit value of the temperature and continuously exceeds 5s, the running frequency of all fans is increased by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from 1 gear to 2 gears; if the environmental temperature is less than the upper limit value of the temperature and continuously exceeds 5min, reducing the running state of the fan from 1 gear to 0 gear;
e) 2, performing frequency conversion control, namely, when the fans operate in 2 gears, if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 5s, increasing the operating frequency of all the fans by 1 Hz; if the environmental temperature is less than the lower temperature limit value and continuously exceeds 2min, reducing the operating frequency of all the fans by 1 Hz;
if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 30s, the running state of the fan is increased from the 2 gear to the 3 gear; if the environmental temperature is less than the upper temperature limit value and continuously exceeds 5min, reducing the running state of the fan from 2-gear to 1-gear;
f) 3, performing frequency conversion control in 3 gears, and if the ambient temperature is greater than the upper temperature limit value and continuously exceeds 5s when the fans operate in 3 gears, increasing the operating frequency of all the fans by 1 Hz; and if the ambient temperature is lower than the upper temperature limit value and continuously exceeds 5min, reducing the running state of the fan from 3-gear to 2-gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010712977.1A CN111852926B (en) | 2020-07-22 | 2020-07-22 | Energy-saving fan control system with temperature and humidity detection function and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010712977.1A CN111852926B (en) | 2020-07-22 | 2020-07-22 | Energy-saving fan control system with temperature and humidity detection function and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111852926A true CN111852926A (en) | 2020-10-30 |
| CN111852926B CN111852926B (en) | 2022-04-08 |
Family
ID=72950285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010712977.1A Active CN111852926B (en) | 2020-07-22 | 2020-07-22 | Energy-saving fan control system with temperature and humidity detection function and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111852926B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201111300Y (en) * | 2007-12-29 | 2008-09-03 | 山东达驰电气股份有限公司 | Transformer wind cooling intelligent control system |
| CN203553903U (en) * | 2013-11-18 | 2014-04-16 | 刘品义 | Power motor protection device |
| CN104716639A (en) * | 2013-12-11 | 2015-06-17 | 财团法人工业技术研究院 | Variable speed fan group power supply device and energy management method thereof |
| CN105299825A (en) * | 2015-06-30 | 2016-02-03 | 广东美的暖通设备有限公司 | Frequency-limiting protection method for air conditioner |
| CN106402009A (en) * | 2016-10-26 | 2017-02-15 | 华南理工大学 | Air volume control system based on principal and subordinate logic and air volume control method |
| CN106440594A (en) * | 2016-11-25 | 2017-02-22 | 广东美的暖通设备有限公司 | Outdoor fan control method and system and air conditioner |
| CN106567724A (en) * | 2015-10-09 | 2017-04-19 | 无锡国煤重工机械有限公司 | Underground variable-frequency ventilation method |
| CN206180906U (en) * | 2016-07-15 | 2017-05-17 | 苏州韦德韦诺电气科技有限公司 | Frequency conversion circulation starts one and drags three systems |
| CN106950880A (en) * | 2017-04-06 | 2017-07-14 | 西安工程大学 | Frequency conversion fan controller with wireless transmission function |
| CN107166653A (en) * | 2017-05-27 | 2017-09-15 | 广东美的制冷设备有限公司 | Progress control method, operating control device and air conditioner |
| CN107218666A (en) * | 2017-07-20 | 2017-09-29 | 杭州老板电器股份有限公司 | Center air cleaning system and its central control circuit |
| CN108507115A (en) * | 2018-03-28 | 2018-09-07 | 合肥通用机械研究院有限公司 | A kind of computer room or base station flood irrigation formula air-conditioning adaptive energy-saving control system and method |
| JP2019007452A (en) * | 2017-06-27 | 2019-01-17 | 株式会社デンソー | Electronic control unit |
| CN208749629U (en) * | 2018-03-09 | 2019-04-16 | 鞍山三合众鑫科技有限公司 | A kind of intelligent blower group control network based on RS485 communication |
| CN209313422U (en) * | 2019-03-21 | 2019-08-27 | 上海连成（集团）有限公司 | A kind of variable-frequency motor cooling control system |
-
2020
- 2020-07-22 CN CN202010712977.1A patent/CN111852926B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201111300Y (en) * | 2007-12-29 | 2008-09-03 | 山东达驰电气股份有限公司 | Transformer wind cooling intelligent control system |
| CN203553903U (en) * | 2013-11-18 | 2014-04-16 | 刘品义 | Power motor protection device |
| CN104716639A (en) * | 2013-12-11 | 2015-06-17 | 财团法人工业技术研究院 | Variable speed fan group power supply device and energy management method thereof |
| CN105299825A (en) * | 2015-06-30 | 2016-02-03 | 广东美的暖通设备有限公司 | Frequency-limiting protection method for air conditioner |
| CN106567724A (en) * | 2015-10-09 | 2017-04-19 | 无锡国煤重工机械有限公司 | Underground variable-frequency ventilation method |
| CN206180906U (en) * | 2016-07-15 | 2017-05-17 | 苏州韦德韦诺电气科技有限公司 | Frequency conversion circulation starts one and drags three systems |
| CN106402009A (en) * | 2016-10-26 | 2017-02-15 | 华南理工大学 | Air volume control system based on principal and subordinate logic and air volume control method |
| CN106440594A (en) * | 2016-11-25 | 2017-02-22 | 广东美的暖通设备有限公司 | Outdoor fan control method and system and air conditioner |
| CN106950880A (en) * | 2017-04-06 | 2017-07-14 | 西安工程大学 | Frequency conversion fan controller with wireless transmission function |
| CN107166653A (en) * | 2017-05-27 | 2017-09-15 | 广东美的制冷设备有限公司 | Progress control method, operating control device and air conditioner |
| JP2019007452A (en) * | 2017-06-27 | 2019-01-17 | 株式会社デンソー | Electronic control unit |
| CN107218666A (en) * | 2017-07-20 | 2017-09-29 | 杭州老板电器股份有限公司 | Center air cleaning system and its central control circuit |
| CN208749629U (en) * | 2018-03-09 | 2019-04-16 | 鞍山三合众鑫科技有限公司 | A kind of intelligent blower group control network based on RS485 communication |
| CN108507115A (en) * | 2018-03-28 | 2018-09-07 | 合肥通用机械研究院有限公司 | A kind of computer room or base station flood irrigation formula air-conditioning adaptive energy-saving control system and method |
| CN209313422U (en) * | 2019-03-21 | 2019-08-27 | 上海连成（集团）有限公司 | A kind of variable-frequency motor cooling control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111852926B (en) | 2022-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2924742Y (en) | Transformer forced-oil-circulation air-cooled intelligent control system | |
| CN207338265U (en) | A kind of digital electric meter intelligent remote killer switch | |
| CN111852926B (en) | Energy-saving fan control system with temperature and humidity detection function and control method | |
| CN1549281A (en) | Transformer cooling fan controlling apparatus | |
| CN204515467U (en) | Powerhouse of hydropower station seepage sump drainage control system | |
| CN102354954A (en) | Motor protecting and monitoring system | |
| CN111396984A (en) | Intelligent current control anti-tripping system for heat supply and heating equipment | |
| CN204408240U (en) | A kind of wireless remote transmission oil well control cabinet | |
| CN201476218U (en) | System with remote monitoring capability and used for controlling ventilation of computer room | |
| CN216290739U (en) | Energy-saving heat dissipation controller of high-voltage variable frequency motor | |
| CN2838143Y (en) | The automatic control equipment of whole bi-motor | |
| CN100495262C (en) | Oil pump intelligent energy-saving controlling cabinet | |
| CN202261157U (en) | Automatic energy saver of air compressor | |
| CN208190041U (en) | A kind of electronic engineering machinery power distribution cabinet | |
| CN203773339U (en) | Oil pumping machine intelligent electricity saving control device | |
| CN207603037U (en) | A kind of electrical equipment automation control cabinet | |
| CN218237940U (en) | Electrical control box for flow state ice making equipment | |
| CN201032519Y (en) | Intelligent energy-saving controller for oil pumping unit | |
| CN207559894U (en) | A kind of fuel frequency converter | |
| CN201444617U (en) | Electromagnetic voltage-stabilizing and electricity-saving device | |
| CN101916105A (en) | Awning remote control device based on wireless communication module | |
| CN201733071U (en) | Fault operation acousto-optic alarm device of special vehicle air conditioner | |
| CN204331408U (en) | Motor control assembly | |
| CN210037912U (en) | Load box with multiple protect function | |
| CN2667768Y (en) | Intelligent motor controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |