CN108571461A - Fan controller, blower fan system and frequency convertor system - Google Patents
Fan controller, blower fan system and frequency convertor system Download PDFInfo
- Publication number
- CN108571461A CN108571461A CN201810551988.9A CN201810551988A CN108571461A CN 108571461 A CN108571461 A CN 108571461A CN 201810551988 A CN201810551988 A CN 201810551988A CN 108571461 A CN108571461 A CN 108571461A
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- China
- Prior art keywords
- intermediate relay
- relay
- string
- controlling brancher
- control coil
- 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
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 description 13
- 230000003111 delayed effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The present invention relates to fan controllers, blower fan system and frequency convertor system, fan controller includes four controlling branchers drawn by power supply, string is equipped with starting switch on first controlling brancher, the control coil of shutdown switch and the first intermediate relay, the main normally opened contact string of first intermediate relay is located in the supply line by heat dissipation equipment, the control coil of auxiliary normally-closed contact and the time relay of the string equipped with the first intermediate relay on second controlling brancher, the control coil of timing closing contact and second intermediate relay of the string equipped with the time relay on third controlling brancher, auxiliary normally-closed contact and wind turbine of the string equipped with the second intermediate relay on 4th controlling brancher.Therefore, the apparatus structure is simple, and control is reliable, realizes that automatic startup and delay stop control, has the advantages that energy saving, practical and stability.In addition, this programme reasonable design, applied widely, meet safe and reliable, unattended requirement.
Description
Technical field
The present invention relates to fan controller, blower fan system and frequency convertor systems.
Background technology
Frequency conversion tank be using frequency converter dragging power plant switch board, because its good startability, speed adjusting performance and
Energy-saving effect and as the power driving style currently promoted.In the distribution of industrial circle production, motor control cabinet is used
When frequency converter, frequency converter will produce amount of heat in work, elevate the temperature, and it has been more than pre- to lead to the temperature rise in switchgear
Calibration is accurate, damages the working performance of frequency converter and various insulating elements, the service life shortening of facility etc., often adds wind in cabinet
Machine reaches heat dissipation purpose, radiates for frequency converter.To this requires wind turbines reliable control mode, discharge in time generates excessive
Heat reduces influence to safety in production, still, or existing fan controller be control process it is more complicated or
It is that circuit structure is more complicated, control reliability is relatively low.
Invention content
The object of the present invention is to provide a kind of fan controllers, to solve existing fan controller circuit structure
More complicated problem.Present invention simultaneously provides a kind of blower fan systems and a kind of frequency convertor system.
To achieve the above object, the present invention includes following technical scheme.
A kind of fan controller includes four controlling branchers drawn by power supply, goes here and there and set on the first controlling brancher
Have starting switch, shutdown switch and the first intermediate relay control coil, string is equipped in described first on the second controlling brancher
Between relay auxiliary normally-closed contact and the time relay control coil, string is equipped with the time relay on third controlling brancher
The control coil of the timing closing contact and the second intermediate relay of device, on the 4th controlling brancher string be equipped among described second after
The auxiliary normally-closed contact of electric appliance, wind turbine are located at the 4th controlling brancher for going here and there.
When power supply is powered, four controlling branchers are powered, and operate starting switch, the control of the first intermediate relay
Coil obtains electric, and the auxiliary normally-closed contact of the first intermediate relay disconnects, the control coil dead electricity of the time relay, among second after
The auxiliary normally-closed contact of electric appliance is in closed state, and wind turbine must electrically activate；When operating shutdown switch, the first intermediate relay
Control coil dead electricity, auxiliary normally-closed contact are closed, and the control coil of the time relay obtains electric, and the timing closing of the time relay is touched
Point delay certain time is closed, that is, the control coil for the second intermediate relay after a certain period of time of being delayed obtains electric, the second intermediate relay
The auxiliary normally-closed contact of device disconnects, and wind turbine power-off stops, and realizes and thoroughly excludes again to be stopped by heat dissipation equipment after-heat rear fan
Purpose.Therefore, which can realize that wind turbine starts automatically and delay stops control.Moreover, the time relay
Delay time it is adjustable, realize wind turbine delay stop flexible control.Therefore, this programme circuit structure is simple, and control is reliable, solution
Determined air-blower control problem, realize it is automatic start and delay stops control, and with energy saving, practical and reliability and stability excellent
Point.In addition, this programme reasonable design, convenient, and it is applied widely, meet safe and reliable, unattended requirement.
Further, the starting switch be start button, the shutdown switch be stop button, the start button with
The auxiliary normally opened contact of first intermediate relay is in parallel.
A kind of blower fan system, including wind turbine and fan controller, the fan controller include being drawn by power supply
Four controlling branchers gone out, control of the string equipped with starting switch, shutdown switch and the first intermediate relay on the first controlling brancher
Coil, the control line of auxiliary normally-closed contact and the time relay of the string equipped with first intermediate relay on the second controlling brancher
It encloses, the control line of timing closing contact and second intermediate relay of the string equipped with the time relay on third controlling brancher
It encloses, auxiliary normally-closed contact and wind turbine of the string equipped with second intermediate relay on the 4th controlling brancher.
When power supply is powered, four controlling branchers are powered, and operate starting switch, the control of the first intermediate relay
Coil obtains electric, and the auxiliary normally-closed contact of the first intermediate relay disconnects, the control coil dead electricity of the time relay, among second after
The auxiliary normally-closed contact of electric appliance is in closed state, and wind turbine must electrically activate；When operating shutdown switch, the first intermediate relay
Control coil dead electricity, auxiliary normally-closed contact are closed, and the control coil of the time relay obtains electric, and the timing closing of the time relay is touched
Point delay certain time is closed, that is, the control coil for the second intermediate relay after a certain period of time of being delayed obtains electric, the second intermediate relay
The auxiliary normally-closed contact of device disconnects, and wind turbine power-off stops, and realizes and thoroughly excludes again to be stopped by heat dissipation equipment after-heat rear fan
Purpose.Therefore, which can realize that wind turbine starts automatically and delay stops control.Moreover, the time relay
Delay time it is adjustable, realize wind turbine delay stop flexible control.
Further, the starting switch be start button, the shutdown switch be stop button, the start button with
The auxiliary normally opened contact of first intermediate relay is in parallel.
A kind of frequency convertor system, including frequency converter and blower fan system, the blower fan system include wind turbine and air-blower control dress
It sets, the fan controller includes four controlling branchers drawn by the power supply of frequency converter, is gone here and there on the first controlling brancher
Control coil equipped with starting switch, shutdown switch and the first intermediate relay, the master of first intermediate relay is normally opened to be touched
Point string is located in the supply line of frequency converter, and auxiliary of the string equipped with first intermediate relay is normally closed on the second controlling brancher touches
The control coil of point and the time relay, timing closing contact of the string equipped with the time relay and the on third controlling brancher
The control coil of two intermediate relays, on the 4th controlling brancher auxiliary normally-closed contact of the string equipped with second intermediate relay and
Wind turbine.
When the power supply of the power supply of frequency converter, i.e., after the power supply inlet wire end side of frequency converter is powered, four controlling branchers are logical
Electricity, and operate starting switch, the control coil of the first intermediate relay obtain electric, and the main normally opened contact of the first intermediate relay closes
It closing, frequency converter must electrically activate, and the auxiliary normally-closed contact of the first intermediate relay disconnects, the control coil dead electricity of the time relay,
The auxiliary normally-closed contact of second intermediate relay is in closed state, and wind turbine must electrically activate, i.e. frequency converter and wind turbine starts simultaneously.
When operating shutdown switch, the control coil dead electricity of the first intermediate relay, main normally opened contact disconnects, and frequency converter dead electricity stops,
Normally-closed contact is assisted to be closed, the control coil of the time relay obtains electric, one timing of timing closing contact delay of the time relay
Between be closed, that is, the control coil of the second intermediate relay after a certain period of time of being delayed obtains electric, and the auxiliary of the second intermediate relay is normally closed
Contact disconnects, and wind turbine power-off stops.Therefore, which can realize frequency converter and wind turbine while start, frequency converter
After stopping, wind turbine continues to run with to be stopped again for a period of time, is realized and is thoroughly excluded the mesh that frequency converter after-heat rear fan stops again
's.Moreover, the delay time of the time relay is adjustable, the flexible control that wind turbine delay stops is realized.
Further, the starting switch be start button, the shutdown switch be stop button, the start button with
The auxiliary normally opened contact of first intermediate relay is in parallel.
Description of the drawings
Fig. 1 is the electric operation control circuit figure of frequency convertor system.
Specific implementation mode
Frequency convertor system embodiment
The present embodiment provides a kind of frequency convertor system, including frequency converter and blower fan system, blower fan system is used for frequency converter
It radiates, since frequency converter belongs to the prior art, the protection point of the frequency convertor system is blower fan system.Moreover, wind turbine
System includes wind turbine and fan controller, since wind turbine belongs to the prior art, the protection point of the blower fan system is wind turbine
Control device.Therefore, the protection point of frequency convertor system and blower fan system is fan controller, then, the blower fan system
Application, i.e. the application of the fan controller is not limited to frequency converter, other than frequency converter, can also be it
He by heat dissipation equipment.
Fig. 1 is the electric operation control circuit figure of frequency convertor system, as shown in Figure 1, fan controller includes four controlling branchers, this
The power supply of four controlling branchers is the power supply of frequency converter, is also this four when the power supply of the power supply of frequency converter
Controlling brancher provides electric energy.As a specific implementation mode, as shown in Figure 1, breaker end of incoming cables A, N are total alternating current
Source provides electric energy for frequency converter and four controlling branchers.START is that frequency converter starts control button, referred to as start button,
STOP is that frequency converter stops control button, referred to as stop button.Relay KA1 is the first intermediate relay, and the present embodiment will
It is named as Frequency Converter Control relay, and relay KA2 is the second intermediate relay, and the present embodiment is named as air-blower control
Relay, FU are fuse.
As shown in Figure 1, string is equipped with start button START, stop button STOP and relay KA1 on the first controlling brancher
Control coil, start button START are in parallel with the auxiliary normally opened contact of relay KA1；String is equipped with relay on second controlling brancher
The control coil of the auxiliary normally-closed contact and time relay KT of device KA1；String is equipped with time relay KT on third controlling brancher
Timing closing contact and relay KA2 control coil；Auxiliary of the string equipped with relay KA2 is normally closed on 4th controlling brancher touches
Point, wind turbine are also gone here and there and are located on the 4th controlling brancher.Moreover, the main normally opened contact string of relay KA1 is located at the supply lines of frequency converter
On the road.
When the power supply of the power supply of frequency converter, i.e., after breaker end of incoming cables A, N are powered, power supply is four control branch
Road powers, and frequency converter starts order and sent out by start button START, and start button START is pressed, the control of relay KA1
Coil obtains electric, and the main normally opened contact of relay KA1 is closed, and frequency converter must electrically activate, and the auxiliary normally-closed contact of relay KA1 is disconnected
It opens, the control coil dead electricity of time relay KT, the auxiliary normally-closed contact of relay KA2 is in closed state, and wind turbine, which is powered, to be transported
Row realizes the purpose that frequency converter and wind turbine are run simultaneously.Wherein, breaker end of incoming cables A, N energization moment and start button START
It is under normal circumstances synchronization at the time of being pressed, can also be：A, N are initially powered for breaker end of incoming cables, are and then started and are pressed
Button START is pressed, and the two is not much different on the time.
When STOP orders are sent out, i.e., when stop button STOP is pressed, the control coil dead electricity of relay KA1 is main normal
Contact disconnection is opened, frequency converter dead electricity stops, and the auxiliary normally-closed contact of relay KA1 is closed, the control coil of time relay KT
It is electric, the delay of the timing closing contact of time relay KT is closed after a certain period of time, that is, the relay KA2's after a certain period of time of being delayed
Control coil obtains electric, the auxiliary normally-closed contact disconnection of relay KA2, and wind turbine powers off stopping, i.e. the auxiliary of relay KA2 is normally closed tactile
Point delay disconnects, and wind turbine delay cut-off stops.Therefore, which can realize frequency converter and wind turbine while start,
After frequency converter stops, wind turbine continues to run with to be stopped again for a period of time, realizes that thoroughly exclude frequency converter after-heat rear fan stops again
Purpose only.Moreover, the delay time of time relay KT is adjustable, the flexible control that wind turbine delay stops is realized.
Therefore, the start-up and shut-down control to cooling fan, intermediate relay control are realized using intermediate relay and the time relay
Frequency converter operation processed stops, and intermediate relay and the time relay realize that automatic startup and delay stop wind turbine.
As other embodiments, if start button START is the starting switch (ratio that state can be kept after operating
Such as chopper switch), if stop button STOP is the shutdown switch (such as chopper switch) that state can be kept after operating, start
Switch is just without in parallel with the auxiliary normally opened contact of relay KA1.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in introduction according to the present invention
The model of shape, formula, parameter do not need to spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment carries out are still fallen in protection scope of the present invention.
Blower fan system embodiment
The present embodiment provides a kind of blower fan systems, including wind turbine and fan controller.Above-mentioned frequency convertor system embodiment
In, the main normally opened contact string of relay KA1 is located in the supply line of frequency converter, certainly, for fan controller, after
The specific location of the main normally opened contact of electric appliance KA1 is not the technical characteristic of the fan controller, and installation position does not limit.
So, which is served only for automatic startup and the delay stopping of control wind turbine, to by the startup of heat dissipation equipment and stopping
It only controls and does not limit.Due to having been carried out in detail to the circuit structure of fan controller in above-mentioned frequency convertor system embodiment
Ground describes, and the present embodiment just no longer illustrates.
So, when power supply is powered, four controlling branchers are powered, also, start button START is pressed, relay
The control coil of device KA1 obtains electric, and the auxiliary normally-closed contact of relay KA1 disconnects, the control coil dead electricity of time relay KT, after
The auxiliary normally-closed contact of electric appliance KA2 is in closed state, and wind turbine, which is powered, to be run.Similarly with above-mentioned frequency convertor system embodiment, should
It is synchronization under normal circumstances at the time of being pressed with start button START at the time of power supply provides electric energy, it can also
It is：Power supply just provides electric energy, and and then start button START is pressed, and the two is not much different on the time.
When STOP orders are sent out, i.e., when stop button STOP is pressed, the control coil dead electricity of relay KA1, relay
The auxiliary normally-closed contact of device KA1 is closed, and the control coil of time relay KT obtains electric, the timing closing contact of time relay KT
Delay is closed after a certain period of time, that is, the control coil of the relay KA2 after a certain period of time of being delayed obtains electric, and the auxiliary of relay KA2 is normal
Closed contact disconnects, and wind turbine power-off stops, i.e. the auxiliary normally-closed contact delay of relay KA2 disconnects, and wind turbine delay cut-off stops, real
Now thoroughly exclude the purpose stopped again by heat dissipation equipment after-heat rear fan.Therefore, which can realize wind
Machine starts automatically and delay stops control.Moreover, the delay time of time relay KT is adjustable, the spirit that wind turbine delay stops is realized
Control living.
Fan controller embodiment
The present embodiment provides a kind of fan controllers, since the fan controller is in above-mentioned blower fan system embodiment
It has given and has described in detail, the present embodiment just no longer illustrates.
Claims (6)
1. a kind of fan controller, which is characterized in that include four controlling branchers drawn by power supply, the first control branch
Control coil of the road string equipped with starting switch, shutdown switch and the first intermediate relay, string is equipped with institute on the second controlling brancher
The control coil of the auxiliary normally-closed contact and the time relay of the first intermediate relay is stated, string is equipped with described on third controlling brancher
The control coil of the timing closing contact and the second intermediate relay of the time relay, string is equipped with described the on the 4th controlling brancher
The auxiliary normally-closed contact of two intermediate relays, wind turbine are located at the 4th controlling brancher for going here and there.
2. fan controller according to claim 1, which is characterized in that the starting switch is start button, described
Shutdown switch is stop button, and the start button is in parallel with the auxiliary normally opened contact of the first intermediate relay.
3. a kind of blower fan system, including wind turbine and fan controller, which is characterized in that the fan controller includes by supplying
Four controlling branchers that power supply is drawn, string is equipped with starting switch, shutdown switch and the first intermediate relay on the first controlling brancher
The control coil of device, auxiliary normally-closed contact and the time relay of the string equipped with first intermediate relay on the second controlling brancher
Control coil, timing closing contact and second intermediate relay of the string equipped with the time relay on third controlling brancher
Control coil, auxiliary normally-closed contact and wind turbine of the string equipped with second intermediate relay on the 4th controlling brancher.
4. blower fan system according to claim 3, which is characterized in that the starting switch is start button, the stopping
Switch is stop button, and the start button is in parallel with the auxiliary normally opened contact of the first intermediate relay.
5. a kind of frequency convertor system, which is characterized in that including frequency converter and blower fan system, the blower fan system includes wind turbine and wind
Machine control device, the fan controller include four controlling branchers drawn by the power supply of frequency converter, the first control
Control coil of the branch road string equipped with starting switch, shutdown switch and the first intermediate relay, first intermediate relay
Main normally opened contact string is located in the supply line of frequency converter, and string is auxiliary equipped with first intermediate relay on the second controlling brancher
Help the control coil of normally-closed contact and the time relay, timing closing of the string equipped with the time relay on third controlling brancher
The control coil of contact and the second intermediate relay, auxiliary of the string equipped with second intermediate relay is normal on the 4th controlling brancher
Closed contact and wind turbine.
6. frequency convertor system according to claim 5, which is characterized in that the starting switch is start button, described to stop
Only switch is stop button, and the start button is in parallel with the auxiliary normally opened contact of the first intermediate relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551988.9A CN108571461B (en) | 2018-05-31 | 2018-05-31 | Fan control device, fan system and frequency converter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551988.9A CN108571461B (en) | 2018-05-31 | 2018-05-31 | Fan control device, fan system and frequency converter system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108571461A true CN108571461A (en) | 2018-09-25 |
| CN108571461B CN108571461B (en) | 2023-11-21 |
Family
ID=63572931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810551988.9A Active CN108571461B (en) | 2018-05-31 | 2018-05-31 | Fan control device, fan system and frequency converter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571461B (en) |
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| CN112242800A (en) * | 2020-11-20 | 2021-01-19 | 中船华南船舶机械有限公司 | Multi-motor electric control system |
| CN112261843A (en) * | 2020-10-27 | 2021-01-22 | 国网福建省电力有限公司石狮市供电公司 | Power failure and recovery heat dissipation device for power distribution automation terminal and working method of power failure and recovery heat dissipation device |
| CN112634554A (en) * | 2020-12-28 | 2021-04-09 | 刘晓磊 | Air switch safety operation signboard in electrical switch cabinet and method |
| CN113395019A (en) * | 2021-06-25 | 2021-09-14 | 安徽海螺建材设计研究院有限责任公司 | Variable frequency motor and remote linkage control system and method for cooling fan of variable frequency motor |
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