CN201976067U - Variable frequency control device of fan - Google Patents
Variable frequency control device of fan Download PDFInfo
- Publication number
- CN201976067U CN201976067U CN2010206553091U CN201020655309U CN201976067U CN 201976067 U CN201976067 U CN 201976067U CN 2010206553091 U CN2010206553091 U CN 2010206553091U CN 201020655309 U CN201020655309 U CN 201020655309U CN 201976067 U CN201976067 U CN 201976067U
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- Prior art keywords
- circuit
- frequency converter
- fan
- parallel
- contactor
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- Expired - Fee Related
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- Control Of Ac Motors In General (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model relates to a variable frequency control device of a fan, which comprises a main circuit regulation part and a protection and control part. The main circuit regulation part comprises input ends (L1, L2 and L3), an ammeter A, a main power circuit breaker QF, wiring terminals, a kilowatt-hour meter, a frequency converter and a main fan motor M; and the protection and control part is connected with a main circuit and operates within the rated current. The high-torque output (startup under heavy loads) of the motor can be guaranteed, the startup demands of the motor under different working conditions can be satisfied, the whole startup process is smooth, safe and silent, the impact of current on a power grid, the motor and devices is eliminated completely, the input voltage of the fan can be adjusted rapidly according to load changes of the fan, the current of the fan can be reduced in a forced way, the high-efficiency operation of the motor can be guaranteed, and more than 30 percent of electric energy can be saved.
Description
Technical field
The utility model relates to electromechanical power control field, particularly a kind of fan frequency conversion control device.
Background technology
Blower fan has crucial effect in mine operation, fan controller in the past, what adopt is reduced-voltage starting, impulse ratio to whole electrical network is bigger, and start-up time is longer, whole device does not have speed-regulating function yet, the motor major part is in the constant-speed operation state, and with plate washer, the way that valve or emptying reflux is carried out the adjusting of flow or pressure, can not make suitable adjusting at different demands, has caused waste of power resources, increased cost, if and had contingency to take place at work, the power down road of must in time breaking would prevent the damage of blower fan and bigger property safety loss.
Summary of the invention
The purpose of this utility model is exactly to be to overcome above-mentioned deficiency of the prior art and a kind of novel fan frequency conversion control device that can effectively regulate and that have automatic safety device is provided.
For achieving the above object, the utility model is to adopt following scheme to be achieved in that the fan frequency conversion control device is regulated part by main circuit and the protection control section is formed, and it is characterized in that: regulate control section and be made up of input (L1, L2, L3), ammeter A, main power source circuit breaker Q F, binding post, kilowatt-hour meter, frequency converter, blower fan master motor M; Wherein input (L1, L2, L3) is gone up the L1 end and is connected to main power source circuit breaker Q F, ammeter A is connected on the input by current transformer BH, input three ends are connected to three input ports of R, S, T of frequency converter at last, binding post is connected in parallel on the main circuit of input (L1, L2, L3), kilowatt-hour meter is connected with binding post, and PE holds ground connection; The main motor M of blower fan is connected three outputs of U, V, W of frequency converter; The protection control section is by L4, L5 is connected on the main circuit, voltmeter V is connected in parallel on the circuit, be connected in parallel on the circuit after operation control contactor KM1 and the run indicator WS1 series connection, stop control contactor KM2 and stop to be connected in parallel on the circuit after indicator light WS2 connects, Fault Control relay K A2 be connected in parallel on the circuit after malfunction indicator lamp WS3 connects, blower fan control relay KA1 be connected in parallel on the circuit after blower fan contactor KF connects, stop button SB1, start button SB2 be connected in parallel on the circuit protective tube R1 after starting contactor KM connects, R2 is connected to the circuit two ends; The protection control section is connected on the frequency converter; wherein starting contactor KM is connected the FWD end of frequency converter; push-button switch SB0 is connected frequency converter S3 (RST) end; contactor KM links to each other by frequency converter COM end with push-button switch SB0; blower fan control relay KA1 is connected frequency converter SP1 end; Fault Control relay K A2 is connected frequency converter SP2 end, and links to each other with KA1 by frequency converter 24V end.
The utility model advantage:
1, the utility model fan frequency conversion control device can satisfy the startup needs of motor under the various conditions of work in rated current with interior and assurance motor high torque (HT) output (heavy load starting).Whole starting process steadily, safety, peace and quiet, eliminated the impact of electric current fully to electrical network, motor and equipment.
2, the utility model is provided with the automatic tracking and matching of motion vector system, can force to reduce the blower fan electric current and also guarantee that motor efficiently moves according to the input voltage of the load variations rapid adjustment blower fan of blower fan, can save electric energy more than 30%.
3, the utility model is provided with protective device, runs into unusual automatic outage, and the effective safety of protective circuit and blower fan has prolonged useful life of blower fan greatly.
Description of drawings
Fig. 1 is the utility model main circuit regulating circuit schematic diagram
Fig. 2 is the utility model protection control circuit schematic diagram
Fig. 3 is the utility model structural representation
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, input (L1, L2, L3) input 380V alternating current, press start button SB2 during work, main power source circuit breaker Q F closes, blower fan control relay KA1, starting contactor KM and blower fan contactor KF closure, the main motor M startup work of blower fan, operation control contactor KM1 closure, run indicator WS1 lights, ammeter A is used for the surveying work electric current, kilowatt-hour meter is used for the surveying work consumed power, can make suitable adjustment to different demands by regulating the speed that frequency converter is regulated blower fan in the work; Press stop button SB1 when quitting work, circuit disconnects, and blower fan quits work, and stops control contactor KM2 closure, stops indicator light WS2 and lights; When running into fault, Fault Control relay K A2 closure, blower fan master motor M quits work, and malfunction indicator lamp WS3 lights.
Claims (1)
1. fan frequency conversion control device, regulate part and protect control section to form by main circuit, it is characterized in that: main circuit adjusting part input (L1, L2, L3) is gone up the L1 end and is connected to main power source circuit breaker Q F, ammeter A is connected on the input by current transformer BH, input three ends are connected to three input ports of R, S, T of frequency converter at last, binding post is connected in parallel on the main circuit of input (L1, L2, L3), and kilowatt-hour meter is connected with binding post, and PE holds ground connection; The main motor M of blower fan is connected three outputs of U, V, W of frequency converter; The protection control section is by L4, L5 is connected on the main circuit, voltmeter V is connected in parallel on the circuit, be connected in parallel on the circuit after operation control contactor KM1 and the run indicator WS1 series connection, stop control contactor KM2 and stop to be connected in parallel on the circuit after indicator light WS2 connects, Fault Control relay K A2 be connected in parallel on the circuit after malfunction indicator lamp WS3 connects, blower fan control relay KA1 be connected in parallel on the circuit after blower fan contactor KF connects, stop button SB1, start button SB2 be connected in parallel on the circuit protective tube R1 after starting contactor KM connects, R2 is connected to the circuit two ends; The protection control section is connected on the frequency converter; wherein starting contactor KM is connected the FWD end of frequency converter; push-button switch SB0 is connected frequency converter S3 (RST) end; contactor KM links to each other by frequency converter COM end with push-button switch SB0; blower fan control relay KA1 is connected frequency converter SP1 end; Fault Control relay K A2 is connected frequency converter SP2 end, and links to each other with KA1 by frequency converter 24V end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206553091U CN201976067U (en) | 2010-12-13 | 2010-12-13 | Variable frequency control device of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206553091U CN201976067U (en) | 2010-12-13 | 2010-12-13 | Variable frequency control device of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201976067U true CN201976067U (en) | 2011-09-14 |
Family
ID=44581166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206553091U Expired - Fee Related CN201976067U (en) | 2010-12-13 | 2010-12-13 | Variable frequency control device of fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201976067U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660147A (en) * | 2014-11-28 | 2015-05-27 | 南通明德重工有限公司 | Variable-frequency control circuit for fan |
| CN105676766A (en) * | 2016-03-15 | 2016-06-15 | 万华生态板业(荆州)有限公司 | Real-time monitoring circuit of high-speed centrifugal atomizer used for artificial board |
| CN105756982A (en) * | 2014-12-16 | 2016-07-13 | 天津宏顺源科技有限公司 | Frequency conversion control system of boiler |
| CN107939719A (en) * | 2017-12-27 | 2018-04-20 | 东莞市国通通风设备有限公司 | Intelligent blower electric cabinet |
-
2010
- 2010-12-13 CN CN2010206553091U patent/CN201976067U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660147A (en) * | 2014-11-28 | 2015-05-27 | 南通明德重工有限公司 | Variable-frequency control circuit for fan |
| CN105756982A (en) * | 2014-12-16 | 2016-07-13 | 天津宏顺源科技有限公司 | Frequency conversion control system of boiler |
| CN105676766A (en) * | 2016-03-15 | 2016-06-15 | 万华生态板业(荆州)有限公司 | Real-time monitoring circuit of high-speed centrifugal atomizer used for artificial board |
| CN107939719A (en) * | 2017-12-27 | 2018-04-20 | 东莞市国通通风设备有限公司 | Intelligent blower electric cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hebishi Jinfeilong Electronic Technology Co., Ltd. Assignor: Wang Haiping Contract record no.: 2013410000085 Denomination of utility model: Variable frequency control device of fan Granted publication date: 20110914 License type: Exclusive License Record date: 20131016 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20131213 |