CN220706001U - Hierarchical open-loop fan control system - Google Patents
Hierarchical open-loop fan control system Download PDFInfo
- Publication number
- CN220706001U CN220706001U CN202321886663.9U CN202321886663U CN220706001U CN 220706001 U CN220706001 U CN 220706001U CN 202321886663 U CN202321886663 U CN 202321886663U CN 220706001 U CN220706001 U CN 220706001U
- Authority
- CN
- China
- Prior art keywords
- variable frequency
- port
- relay
- frequency regulator
- input
- 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.)
- Active
Links
- 238000004804 winding Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses a hierarchical open-loop fan control system, which comprises a variable frequency regulator and a variable frequency motor; the variable frequency regulator comprises a power supply port, a signal input port and a driving port; the power supply port of the variable frequency regulator is connected with the power supply input; the signal input port of the variable frequency regulator is connected with the control panel; the driving port of the variable frequency regulator is connected with a variable frequency motor; the variable frequency motor is connected with the fan, and the variable frequency motor adjusts the power of the fan according to the variable frequency control signal sent by the variable frequency regulator. The hierarchical open-loop fan control system provided by the utility model realizes the hierarchical adjustment of the fan frequency based on the operation of the key knob, is beneficial to an operator to accurately control the fan power, and realizes the energy-saving adjustment of the fan. The utility model also integrates the power indication, the operation indication and the fault indication, and is convenient for operators to visually confirm the operation state of the system.
Description
Technical Field
The utility model relates to the technical field of fan variable frequency regulation, in particular to a hierarchical open-loop fan control system.
Background
The fan generally includes a ventilator, a blower, a wind power generator, etc., and the gas compression and gas transportation machine is a machine that converts rotational mechanical energy into gas pressure energy and kinetic energy and transports the gas. When the rotating speed of the motor is fixed, the output power of the fan is also fixed, so that flexible control of the fan power cannot be realized, the situation that the fan power is insufficient or excessive is possibly caused, and the fan application is not facilitated.
Disclosure of Invention
In view of the above, the embodiment of the utility model provides a hierarchical open-loop fan control system.
The embodiment of the utility model provides a hierarchical open-loop fan control system, which comprises a variable frequency regulator and a variable frequency motor; the variable frequency regulator comprises a power supply port, a signal input port and a driving port; the power supply port of the variable frequency regulator is connected with a power supply input; the signal input port of the variable frequency regulator is connected with the control panel; the driving port of the variable frequency regulator is connected with a variable frequency motor; the variable frequency motor is connected with the fan, and the variable frequency motor adjusts the power of the fan according to the variable frequency control signal sent by the variable frequency regulator.
Further, the power supply port of the variable frequency regulator comprises an R port, an S port, a T port and an E port, and the power supply input is three-phase alternating current input; the R port of the variable frequency regulator is connected with the L1 phase of the three-phase alternating current input, the S port is connected with the L2 phase of the three-phase alternating current input, the T port is connected with the L3 phase of the three-phase alternating current input, and the E port is connected with the grounding wire of the three-phase alternating current input.
Further, the control panel comprises a start button, a stop button and a hierarchical control knob; the starting button and the stopping button control the starting and stopping of the variable frequency regulator; the hierarchical control knob forms any one of a first hierarchical signal input, a second hierarchical signal input, and a third hierarchical signal input for input to the variable frequency regulator.
Further, the signal input port of the variable frequency regulator comprises an FWD port, an X1 port, an X2 port, an X3 port and a COM port; the FWD port of the variable frequency regulator is divided into three paths which are respectively connected with one end of a movable contact of a first relay KA1, one end of a movable contact of a second relay KA2 and one end of a movable contact of a third relay KA 3; an X1 port of the variable frequency regulator is connected with a first grading signal input; an X2 port of the variable frequency regulator is connected with a second classification signal input; an X3 port of the variable frequency regulator is connected with a third grading signal input; the COM port of the variable frequency regulator is respectively connected with the first grading signal input, the second grading signal input, the third grading signal input, the other end of the movable contact of the first relay KA1, the other end of the movable contact of the second relay KA2 and the other end of the movable contact of the third relay KA3 in six ways.
Further, when the first classification signal input is on, the moving contact of the first relay KA1 is closed; when the second classification signal input is on, the movable contact points of the first relay KA1 and the second relay KA2 are closed; when the third classification signal input is on, the moving contacts of the first relay KA1, the second relay KA2 and the third relay KA3 are closed.
Further, a variable frequency control signal of the variable frequency regulator is formed according to the input of the FWD port; when the movable contact of the first relay KA1 is closed, the variable frequency regulator outputs a first variable frequency control signal to the variable frequency motor; when the movable contact points of the first relay KA1 and the second relay KA2 are closed, the variable frequency regulator outputs a second variable frequency control signal to the variable frequency motor; when the movable contact points of the first relay KA1, the second relay KA2 and the third relay KA3 are closed, the variable frequency regulator outputs a third variable frequency control signal to the variable frequency motor.
Further, the driving port of the variable frequency regulator comprises a U port, a V port and a W port; the variable frequency motor comprises a U-phase input, a V-phase input and a W-phase input; the U port of the variable frequency regulator is connected with the U-phase input of the variable frequency motor; the V port of the variable frequency regulator is connected with the V-phase input of the variable frequency motor; and a W port of the variable frequency regulator is connected with a W-phase input of the variable frequency motor.
Further, the variable frequency regulator further comprises a frequency setting port; the frequency setting port comprises a +24V port and an OC port; and the +24V port is connected with one end of the KA0 winding of the fourth relay in series, and the OC port is connected with the other end of the KA0 winding of the fourth relay in series.
Further, the variable frequency regulator further comprises a fault output port; the fault output port comprises a TA port and a TB port; and when the variable frequency regulator fails, outputting failure information through the TA port and the TB port.
Further, the control panel also comprises a power supply indicator lamp, an operation indicator lamp and a fault indicator lamp; the power supply indicator lamp indicates the power supply condition of the variable frequency regulator; the operation indicator lamp indicates the operation condition of the variable frequency regulator; the fault indicator light indicates a fault condition of the variable frequency regulator.
The technical scheme in the embodiment of the utility model has the following advantages: the hierarchical open-loop fan control system provided by the utility model realizes the hierarchical adjustment of the fan frequency based on the operation of the key knob, is beneficial to an operator to accurately control the fan power, and realizes the energy-saving adjustment of the fan. The utility model also integrates the power indication, the operation indication and the fault indication, and is convenient for operators to visually confirm the operation state of the system.
Drawings
FIG. 1 is a block diagram of the overall circuit of a hierarchical open-loop blower control system of the present utility model;
FIG. 2 is a diagram of an operating panel of a hierarchical open loop fan control system of the present utility model.
Reference numerals: variable frequency regulator 1, inverter motor 2, first relay KA1, second relay KA2, third relay KA3, fourth relay KA0.
Detailed Description
The utility model is further explained and illustrated below with reference to the drawing and the specific embodiments of the present specification.
As shown in fig. 1, the embodiment of the utility model provides a hierarchical open-loop fan control system, which comprises a variable frequency regulator 1 and a variable frequency motor 2; the variable frequency regulator 1 comprises a power supply port, a signal input port and a driving port; the power supply port of the variable frequency regulator 1 is connected with a power supply input; the signal input port of the variable frequency regulator 1 is connected with a control panel; the driving port of the variable frequency regulator 1 is connected with a variable frequency motor 2; the variable frequency motor 2 is connected with a fan, and the variable frequency motor 2 adjusts the power of the fan according to a variable frequency control signal sent by the variable frequency regulator 1.
In this embodiment, the power supply ports of the variable frequency regulator 1 include an R port, an S port, a T port, and an E port, and the power supply input is three-phase ac power input; the R port of the variable frequency regulator 1 is connected with the L1 phase of the three-phase alternating current input, the S port is connected with the L2 phase of the three-phase alternating current input, the T port is connected with the L3 phase of the three-phase alternating current input, and the E port is connected with the grounding wire of the three-phase alternating current input.
As shown in fig. 2, the control panel in this embodiment includes a start button, a stop button, and a hierarchical control knob; the start button and the stop button control the start and stop of the variable frequency regulator 1; the classification control knob forms any one of a first classification signal input, a second classification signal input, and a third classification signal input to be input to the variable frequency regulator 1. In this embodiment, the first classification signal input indicates that the variable frequency motor 2 is running at a low speed, the second classification signal input indicates that the variable frequency motor 2 is running at a medium speed, and the third classification signal input indicates that the variable frequency motor 2 is running at a high speed. In the embodiment, the first classification signal input, the second classification signal input and the third classification signal input are used for inputting the classification control signals to the variable frequency regulator 1, and an operator can operate the classification control knob to realize the classification signal input of the fan.
The signal input port of the variable frequency regulator 1 in this embodiment includes a FWD port, an X1 port, an X2 port, an X3 port, and a COM port; the FWD port of the variable frequency regulator 1 is divided into three paths which are respectively connected with one end of a movable contact of the first relay KA1, one end of a movable contact of the second relay KA2 and one end of a movable contact of the third relay KA 3; the X1 port of the variable frequency regulator 1 is connected with a first grading signal INPUT INPUT1; the X2 port of the variable frequency regulator 1 is connected with a second classification signal INPUT INPUT2; the X3 port of the variable frequency regulator 1 is connected with a third grading signal INPUT INPUT3; the COM port of the variable frequency regulator 1 is respectively connected with the first classification signal INPUT INPUT1, the second classification signal INPUT INPUT2, the third classification signal INPUT INPUT3, the other end of the first relay KA1 movable contact, the other end of the second relay KA2 movable contact and the other end of the third relay KA3 movable contact in six ways.
In this embodiment, when the first classification signal input is on, the moving contact of the first relay KA1 is closed; when the second classification signal input is on, the movable contact points of the first relay KA1 and the second relay KA2 are closed; when the third classification signal input is on, the moving contacts of the first relay KA1, the second relay KA2 and the third relay KA3 are closed. On the other hand, the variable frequency control signal of the variable frequency regulator 1 of the present embodiment is formed according to the input of the FWD port; when the movable contact of the first relay KA1 is closed, the variable frequency regulator 1 outputs a first variable frequency control signal to the variable frequency motor 2; when the movable contact points of the first relay KA1 and the second relay KA2 are closed, the variable frequency regulator 1 outputs a second variable frequency control signal to the variable frequency motor 2; when the movable contacts of the first relay KA1, the second relay KA2 and the third relay KA3 are closed, the variable frequency regulator 1 outputs a third variable frequency control signal to the variable frequency motor 2. In the embodiment, the hierarchical signal input of the control panel is received through the ports X1, X2 and X3, the closing quantity of the first relay KA1, the second relay KA2 and the third relay KA3 is controlled, and the power control of the variable frequency motor 2 is realized.
The driving ports of the variable frequency regulator 1 in the embodiment comprise a U port, a V port and a W port; the variable frequency motor 2 comprises a U-phase input, a V-phase input and a W-phase input; the U port of the variable frequency regulator 1 is connected with the U-phase input of the variable frequency motor 2; the V port of the variable frequency regulator 1 is connected with the V-phase input of the variable frequency motor 2; the W port of the variable frequency regulator 1 is connected with the W phase input of the variable frequency motor 2.
The variable frequency regulator 1 in this embodiment further includes a frequency setting port; the frequency setting port comprises a +24V port and an OC port; the +24V port is connected with one end of the fourth relay KA0 winding in series, and the OC port is connected with the other end of the fourth relay KA0 winding in series.
The variable frequency regulator 1 in this embodiment further includes a fault output port; the fault output port comprises a TA port and a TB port; when the variable frequency regulator 1 fails, failure information is output through the TA port and the TB port.
The control panel in the embodiment also comprises a power supply indicator lamp, an operation indicator lamp and a fault indicator lamp; the power supply indicator lamp indicates the power supply condition of the variable frequency regulator 1; the operation indicator lamp indicates the operation condition of the variable frequency regulator 1; the fault indicator light indicates a fault condition of the variable frequency regulator 1. In this embodiment, whether the power supply of the system is normal is prompted by the power indicator, whether the system is in an operating state is prompted by the operating indicator, and whether the system fails is prompted by the fault indicator. According to the embodiment of the utility model, the operation knob and the indicator lamp are integrally designed, so that the visual system state confirmation of an operator is facilitated.
While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the above embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these equivalent modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.
Claims (8)
1. The grading open-loop fan control system is characterized by comprising a variable frequency regulator and a variable frequency motor; the variable frequency regulator comprises a power supply port, a signal input port and a driving port; the power supply port of the variable frequency regulator is connected with a power supply input; the signal input port of the variable frequency regulator is connected with the control panel; the driving port of the variable frequency regulator is connected with a variable frequency motor; the variable frequency motor is connected with the fan, and the variable frequency motor adjusts the power of the fan according to the variable frequency control signal sent by the variable frequency regulator;
the control panel comprises a start button, a stop button and a grading control knob; the starting button and the stopping button control the starting and stopping of the variable frequency regulator; the grading control knob forms any one of a first grading signal input, a second grading signal input and a third grading signal input to be input to the variable frequency regulator;
the signal input port of the variable frequency regulator comprises a FWD port, an X1 port, an X2 port, an X3 port and a COM port; the FWD port of the variable frequency regulator is divided into three paths which are respectively connected with one end of a movable contact of a first relay (KA 1), one end of a movable contact of a second relay (KA 2) and one end of a movable contact of a third relay (KA 3); an X1 port of the variable frequency regulator is connected with a first grading signal input; an X2 port of the variable frequency regulator is connected with a second classification signal input; an X3 port of the variable frequency regulator is connected with a third grading signal input; the COM port of the variable frequency regulator is respectively connected with the first grading signal input, the second grading signal input, the third grading signal input, the other end of the movable contact of the first relay (KA 1), the other end of the movable contact of the second relay (KA 2) and the other end of the movable contact of the third relay (KA 3) in six ways.
2. The hierarchical open-loop blower control system of claim 1, wherein the power supply ports of the variable frequency regulator comprise an R-port, an S-port, a T-port, and an E-port, the power supply input being a three-phase ac power input; the R port of the variable frequency regulator is connected with the L1 phase of the three-phase alternating current input, the S port is connected with the L2 phase of the three-phase alternating current input, the T port is connected with the L3 phase of the three-phase alternating current input, and the E port is connected with the grounding wire of the three-phase alternating current input.
3. The staged open loop blower control system of claim 1 wherein the moving contact of the first relay (KA 1) is closed when the first staged signal input is on; when the second classification signal input is on, the moving contacts of the first relay (KA 1) and the second relay (KA 2) are closed; when the third classification signal input is on, the moving contacts of the first relay (KA 1), the second relay (KA 2) and the third relay (KA 3) are closed.
4. A hierarchical open loop blower control system according to claim 3, characterized in that the variable frequency control signal of the variable frequency regulator is formed from the input of the FWD port; when the movable contact of the first relay (KA 1) is closed, the variable frequency regulator outputs a first variable frequency control signal to a variable frequency motor; when the movable contact points of the first relay (KA 1) and the second relay (KA 2) are closed, the variable frequency regulator outputs a second variable frequency control signal to the variable frequency motor; when the movable contact points of the first relay (KA 1), the second relay (KA 2) and the third relay (KA 3) are closed, the variable frequency regulator outputs a third variable frequency control signal to the variable frequency motor.
5. The hierarchical open-loop blower control system of claim 1, wherein the drive ports of the variable frequency regulator comprise a U-port, a V-port, and a W-port; the variable frequency motor comprises a U-phase input, a V-phase input and a W-phase input; the U port of the variable frequency regulator is connected with the U-phase input of the variable frequency motor; the V port of the variable frequency regulator is connected with the V-phase input of the variable frequency motor; and a W port of the variable frequency regulator is connected with a W-phase input of the variable frequency motor.
6. The hierarchical open-loop blower control system according to claim 1, wherein the variable frequency regulator further comprises a frequency setting port; the frequency setting port comprises a +24V port and an OC port; the +24v port is connected with one end of a fourth relay (KA 0) winding in series, and the OC port is connected with the other end of the fourth relay (KA 0) winding in series.
7. The hierarchical open-loop blower control system according to claim 4, wherein said variable frequency regulator further comprises a fault output port; the fault output port comprises a TA port and a TB port; and when the variable frequency regulator fails, outputting failure information through the TA port and the TB port.
8. The hierarchical open-loop blower control system of claim 7, wherein the control panel further comprises a power indicator, an operation indicator, a fault indicator; the power supply indicator lamp indicates the power supply condition of the variable frequency regulator; the operation indicator lamp indicates the operation condition of the variable frequency regulator; the fault indicator light indicates a fault condition of the variable frequency regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321886663.9U CN220706001U (en) | 2023-07-17 | 2023-07-17 | Hierarchical open-loop fan control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321886663.9U CN220706001U (en) | 2023-07-17 | 2023-07-17 | Hierarchical open-loop fan control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220706001U true CN220706001U (en) | 2024-04-02 |
Family
ID=90438298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321886663.9U Active CN220706001U (en) | 2023-07-17 | 2023-07-17 | Hierarchical open-loop fan control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220706001U (en) |
-
2023
- 2023-07-17 CN CN202321886663.9U patent/CN220706001U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1233356A (en) | Isolated electrical system including asynchronous machine with prime mover and inverter/rectifier | |
| CN108336941A (en) | Control circuit, control method, permanent magnet synchronous motor, compressor and storage medium | |
| KR20040002780A (en) | Electric motor vehicle of brake | |
| JP4958718B2 (en) | Electric vehicle control device | |
| CN220706001U (en) | Hierarchical open-loop fan control system | |
| JPS637170A (en) | Energizing apparatus for hermetic motor | |
| US5463300A (en) | AC motor controller with 180 degree conductive switches | |
| EP3443276B1 (en) | Compressor unit, refrigeration circuit comprising the same and method of operating a compressor unit | |
| CN103733507B (en) | Actuation method for three-phase current machine and actuation device | |
| CA1313244C (en) | Escalator service speed control | |
| US20220341434A1 (en) | Controller and drive circuit for electric motors | |
| JPH09247990A (en) | Inverter device and method for continuing operation at instantaneous break | |
| CN113266557B (en) | Active band-type brake system of polyester melt metering pump for chemical industry | |
| JP2000069777A (en) | Motor rotating velocity monitoring apparatus and centrifugal separator provided with the apparatus | |
| CN106464186B (en) | Electric motor drive system | |
| CN108302049B (en) | Vacuum valve and vacuum pump | |
| CN101336669B (en) | Controller for soft ice-cream machine | |
| CN214756137U (en) | Double-fan power frequency conversion drive circuit | |
| JP7475957B2 (en) | Engine-driven generator | |
| Jarc et al. | A graphical approach to AC drive classification | |
| CN201064163Y (en) | Soft ice cream machine control system | |
| JPH06245316A (en) | Controller for universal electric vehicle | |
| KR20150035641A (en) | Electric compressor inverter with communication power and driving method thereof | |
| CN219535928U (en) | Variable frequency driving device and electric locomotive | |
| JP2001292578A (en) | Motor drive circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |