CN201044416Y - Frequency converter special for draught fan and water pump - Google Patents
Frequency converter special for draught fan and water pump Download PDFInfo
- Publication number
- CN201044416Y CN201044416Y CNU200720036870XU CN200720036870U CN201044416Y CN 201044416 Y CN201044416 Y CN 201044416Y CN U200720036870X U CNU200720036870X U CN U200720036870XU CN 200720036870 U CN200720036870 U CN 200720036870U CN 201044416 Y CN201044416 Y CN 201044416Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- output
- electric capacity
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a special frequency converter for blower and water pump. A control circuit of the utility model mainly adopts that: an input end of a power input circuit is connected with a rectifier circuit; the rectifier circuit is connected with a filter circuit; the filter circuit is connected respectively with an inverter circuit and a switching power circuit; the inverter circuit is connected with a power output circuit; the power output circuit is connected with a microprocessor; the microprocessor is connected respectively with the inverter circuit and a display-control input panel; the power output circuit is connected with a current sensor. The utility model can automatically control the oil liquid level, temperature, pressure and so on of a blower and a water pump, can achieve accurate control after proportion processing and integral processing, can easily realize energy conservation, and can achieve the objective of automatic closed-loop control. The utility model has the main advantages of good radiating effect, compact structure and easy installation.
Description
Technical field
The utility model relates to a kind of blower fan, water pump special converter (IP5), specifically is applied in blower fan, pump class, the load, can realize saving energy easily, and can reach the closed loop purpose of control automatically.
Background technology
Frequency converter has been widely used in industry and heating boiler at present, and the cement pottery is on all kinds of blower fans and water pump of industries such as colliery, metallurgy, plumbing and water treatment, air-conditioning equipment, chemical industry, pharmacy, composting.Automatically control is the maximum characteristics of IP5 Series Frequency Converter, stops and service performance all has the application corresponding function in the starting of handling multiple pump class and fan-type load.
The circuit control panel of general frequency converter and power panel are same wiring board setting.Control circuit generally includes rectification circuit, inverter circuit, controlling circuit of voltage regulation and power interface circuit etc.Frequency Converter Control panel and loam cake are connected as a single entity, dismounting and Long-distance Control voluntarily, and the client uses inconvenience.Parts such as printed circuit board (PCB) plate and electric capacity adopt copper coin to be connected, and running current is bigger, and parts adopt cable to connect, and electric current does not reach requirement, and move for a long time, and cable is aging easily, and it is bad to cause product to move.
In prior art, the circuit of frequency converter generally is made up of rectification, intermediate dc link, inversion and 4 parts of control.Rectifying part is the uncontrollable rectifier of three-phase bridge, and inversion is a three-phase bridge type converter partly, and is output as the PWM waveform, and the intermediate dc link is filtering, dc energy storage and buffering reactive power.And for example Chinese patent discloses the patent No.: 97210433.X, name is called: " current-mode converter ", its control circuit mainly are made up of diode rectification bridge module, filtering capacitor, chopper, current sensor, thyristor inverter bridge and controller etc.Filtering capacitor and diode rectification bridge module are connected in parallel, and the thyristor inverter bridge is connected between chopper and the thyristor inverter bridge by chopper and filtering capacitor.Though the control circuit of this kind structure is simple, power is lower.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby a kind of blower fan, water pump special converter are provided, and can control the liquid level of blower fan, water pump oil automatically, temperature, and pressure etc., and can after ratio and integral processing, can reach accurate control; Good heat dissipation effect, compact conformation, be convenient to install.
Main solution of the present utility model is achieved in that
The utility model mainly adopts control circuit board, power panel is set in housing, control circuit is located on control circuit board and the power panel, feature is that the power supply input circuit output connects rectification circuit input end, and described power supply input circuit input power supply outputs to filter circuit by rectification circuit;
Described rectification circuit converts the alternating current of input converter to direct current;
The output of rectification circuit connects the input of filter circuit, and described filter circuit makes alternating current convert direct current to;
The output of filter circuit is connected with the input of inverter circuit and switching power circuit respectively, and described inverter circuit is transformed into alternating current to direct current, and the signal of inverter is controlled by microprocessor;
The output of inverter circuit connects the input of power output circuit, described power output circuit be from the inverter circuit output current to power output circuit, power output circuit electric current output current is to motor;
The switching power circuit output connects the input of microprocessor, obtains power supply from filter circuit, and the out-put supply signal is to microprocessor;
The microprocessor input is a Switching Power Supply, shows and the control input panel current sensor.Microprocessor obtains command signal from panel, is used for computing and processing signals;
Described demonstration and input panel are state and the control of conversion devices that shows frequency converter, and panel is from the microprocessor input signal, and output signal is to microprocessor again.
Power output circuit connects current sensor, and described current sensor detects size of current from power output circuit, carries out conversion of signals, feeds back to microprocessor again.
Compared with the prior art the utility model has the following advantages:
The utility model can be controlled the liquid level of blower fan, water pump oil automatically, temperature, and pressure etc., and can after ratio and integral processing, can reach accurate control; Good heat dissipation effect, compact conformation, be convenient to install, isolate fully on so not only electric, and use middle baffle plate to isolate, increased stable and safe running performance; Adopted the high performance digital signal process chip to improve processing speed, flexibility, reduction interior noise; Select according to the function of using, aspect speed control, have 16 sections speed to control at most; Built-in 485 communications realize long distance communication between programmable controller and frequency converter; If frequency converter operates in during the sleep delay, traffic demand is low, is lower than fixing sleep frequency, and motor stops, and reaches energy-conservation; Substitute traditional valve, plate washer control method, can realize saving energy easily, and can reach the closed loop purpose of control automatically.
Description of drawings
Fig. 1, Fig. 2, Fig. 3 are the utility model structural representation.
Fig. 4 is the utility model circuit frame principle figure.
Fig. 5 is the utility model switching power circuit components and parts catenation principle figure.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
The utility model core component power inverter 3 (insulated gate bipolar transistor), its major function are that dc inversion is interchange, the operating frequency height, and caloric value is big.Power inverter 3 closely is connected with radiator, and fixes with screw, and contact-making surface closely connects with heat conductive silica gel, and heat-transfer effect is good.
Basic part housing, side are opened the heat radiation window, and the heat that fin produces in time spreads out by this heat radiation window, and heat dissipation base has adopted the high ABS AF303 material of anti-flammability to make, and can increase coefficient of safety during use.At parts such as housing 12 inner installation radiator printed circuit board (PCB)s, constitute its main body frame.On power panel 11, be provided with relay 2, Hall current sensor 4, transformer 5 and gate leve drive circuit 6.
Adopting dividing plate 13 to install in the middle of circuit control panel 7 and the power panel 11 is isolated in the housing.Mainly be provided with control loop parts such as digital signal processor 8 and demonstration and input panel circuit on the circuit control panel 7, belong to the light current parts.And establish the control circuit of frequency converter on the power panel 11, and the input of interchange (380 volts of 3 cross streams) is arranged, direct current (up to 600 volts of direct currents) is arranged, so circuit control panel 7 and power panel 11 employings two plates are independently installed.Isolate fully on so not only electric, and use middle baffle plate to isolate, increased stable anti-with safe running performance.On power panel 11, be provided with rectification circuit, filter circuit, inverter circuit, power supply output, switching power circuit, current sensor etc.Foregoing circuit is connected to control circuit by lead.
Binding post 9 (control section) control terminal that the user manipulates and binding post 10 (power unit) power supply terminal are arranged on the below of housing 12, and the input and output line all connects from binding post 9 and binding post 10.And adopted two kinds of designs to select for the user: the outlet baffle plate is a kind of to be that rubber case (NE series) is arranged, and a kind of is not have rubber case (NO series).If the user uses the operational environment dust of product bigger, adopting has the rubber case type, and blocks dust enters product effectively; If the user uses the operational environment of product cleaner, adopt no rubber case product proper.
Adopt display panels to carry out human-computer dialogue, need the occasion of Long-distance Control at some, product provides the remote accessory bag, makes product can carry out Long-distance Control.
As shown in Figure 4: 1, the output of power supply input circuit is connected to the input of rectification circuit: power supply input circuit mainly is a power input terminal, and piezo-resistance is formed.Input 220V/380V AC power wherein contains piezo-resistance, is used for protecting the internal circuit of frequency converter, prevents surge voltage damage frequency converter.
2, rectification circuit is imported power supply from power supply input circuit, and again by rectification circuit, rectification circuit mainly is that diode is formed, and alternating current becomes direct current through after the diode, passes through after the electrochemical capacitor filtering again, becomes smoother sine wave.
3, the output of rectification circuit connects the input of filter circuit: filter circuit mainly is that electrochemical capacitor is formed; From the power supply input circuit input current, use electrolytic capacitor filtering, make current conversion become direct current.
4, the output of filter circuit connects the input of inverter circuit: inverter circuit mainly is that power inverter and voltage stabilizing circuit are formed; The input of inverter circuit is to come from filter circuit; The main effect of inverter circuit is that direct current is transformed into AC power, and the signal of inverter is controlled by microprocessor.
5, the output of inverter circuit connects the input of power output circuit: power output circuit mainly is that power output terminal is formed; Power output circuit be from the inverter circuit output current to power output circuit, power output circuit electric current output current is to blower fan or water pump.
6, filter circuit connects the input of switching power circuit: obtain power supply behind filter circuit; Effect is to provide suitable power supply for microprocessor.Its output signal is the good microprocessor of 5V power supply signal.
7, microprocessor is connected with the control input panel with inverter circuit and demonstration respectively: obtain current signal from current sensor, obtain command signal from panel, be used for computing and processing signals.
8, power output circuit connects current sensor: current sensor detects size of current from power output circuit, carries out conversion of signals, feeds back to the central signal processor again.
9, demonstration and control input panel: the control input panel mainly is state and the control of conversion device that shows frequency converter.Panel is from the microprocessor input signal, and output signal is to microprocessor again.
As shown in Figure 5: the utility model switching power circuit components and parts annexation is as follows:
1. fuse F1 one end connects dc supply input DCP, and the other end connects diode D3 and capacitor C 8.The output of diode D3 links to each other with filter LF1, and the other end of capacitor C 8 is connected with zero potential DCN.
2. after capacitor C 3 and the C11 series connection, be connected to the output of filter LF1.Ground connection between capacitor C 3 and the capacitor C 11.After capacitor C 4 and the C9 series connection, be connected the output of filter LF1.
3. LED 1 and resistance R 3, resistance R 4, after capacitor C 13 series connection and capacitor C 4, the C9 parallel connection.Parallel voltage-stabilizing diode ZD2 on capacitor C 13.And voltage feedback signal.
4. connect with diode D2 after resistance R 2 and capacitor C 2 parallel connections, an end is connected on capacitor C 4 and the transformer T1 again, and the other end links to each other with the drain electrode of field effect transistor Q1 with transformer T1,
5. the grid of field effect transistor Q1 is triggered by gate pole.Grid connects resistance R 13 and voltage stabilizing didoe ZD1, and the other end is connected to the side of filter LF1.The source electrode of field effect transistor Q1 connects resistance R 14, resistance R 15, resistance R 16.Resistance R 12 is connected to external resistance signal I
s
6. the side of filter LF1 is connected to transformer T1.Resistance R 18 and diode D5 are connected in series on the transformer T1.The secondary side of transformer T1 connects diode D1.Resistance R 32 and capacitor C 19 series connection backs are in parallel with diode D1.The output of diode D1 connects inductance L 1 and capacitor C 5.An other termination output signal P6 of inductance L 1.Middle shunt capacitance C6, resistance R 7, capacitor C 7.
7. two of the secondary side of transformer T1 taps are connected to the input side of diode D4.Be parallel to the two ends of diode D4 after resistance R 33 and capacitor C 33 series connection again.The appearance side of diode D4 is parallel with capacitor C 14 and capacitor C 15, is in series with inductance L 2.The opposite side of inductance L 2 connects resistance R 20, capacitor C 16, resistance R 17, voltage C17, and output signal 24P1;
8. the opposite side of resistance R 19 connects photoelectrical coupler PC1, is connected to the end of comparator U2 after resistance R 20 and resistance R 22 series connection.Capacitor C 22 series resistance R25 and R30.Comparator output signal is to photoelectrical coupler PC1.
9. the output of photoelectrical coupler PC1 connects the zero potential DCNF of control chip U1 through capacitor C 24 and control section.An other end connects resistance R 29 and links to each other with zero potential DCNF.
10. 1 pin of control chip U1 is relatively to hold.VFB is input to control chip U1 through resistance R 24 and electric capacity R21 by the external signal input.External signal is directly received on 2 pins of control chip U1.External input signal I
sBe input on the pin 3 of control chip, be connected with zero potential DCNF by capacitor C 25.The end output of photoelectrical coupler PC1 connects resistance R 26.An other end of resistance R 26 is connected on the pin 4 of control chip U1.Add that on the pin 4 of control chip U1 it is on the DCNF that capacitor C 26 is connected to zero point.
11. the earth terminal 5 of control chip U1 directly is connected with zero potential DCNF.The relatively end 8VREF of control chip is from photoelectrical coupler PC1 input signal, and control chip U1 out-put supply signal 7VCC is to capacitor C 13.Control chip output signal 60UT output signal is to capacitor C 23.An other end output signal I of capacitor C 23
s, being connected to resistance R 28, resistance R 28 other ends connect resistance R 31, and the gate signal of output field effect transistor.The other end of resistance R 31 is received zero potential DCNF.
Claims (3)
1. a blower fan, water pump special converter, employing is provided with control circuit board, power panel in housing, control circuit is located on control circuit board and the power panel, it is characterized in that the power supply input circuit output connects rectification circuit input end, described power supply input circuit input power supply outputs to filter circuit by rectification circuit;
Rectification circuit output end connects the input of filter circuit, and described filter circuit makes current conversion become direct current;
The input of Switching Power Supply is connected with the filter circuit output;
The filter circuit output is connected with inverter circuit and switching power circuit respectively, and described inverter circuit is transformed into AC power to direct current, and the signal of inverter is controlled by microprocessor;
The output of inverter circuit connects the input of power output circuit, described power output circuit be from the inverter circuit output current to power output circuit, power output circuit electric current output current is to motor;
The output of switching power circuit connects microprocessor, obtains power supply from filter circuit, and the out-put supply signal is to microprocessor;
The input of microprocessor is respectively to show and the control input panel, current sensor and Switching Power Supply, and microprocessor obtains current signal from current sensor, obtains command signal from panel, is used for computing and processing signals;
Described demonstration and input panel are state and the control of conversion devices that shows frequency converter, and panel is from the microprocessor input signal, and output signal is to microprocessor again.
Power output circuit connects current sensor, and described current sensor detects size of current from power output circuit, carries out conversion of signals, feeds back to microprocessor again.
2. blower fan according to claim 1, water pump special converter is characterized in that adopting dividing plate (13) to isolate in the middle of described control circuit board (7) and the power panel (11).
3. blower fan according to claim 1, water pump special converter is characterized in that described switching power circuit components and parts annexation is as follows:
(1). fuse (F1) end connects dc supply input (DCP), and the other end connects diode (D3) and electric capacity (C8), and the output of diode (D3) links to each other with filter (LF1), and the other end of electric capacity (C8) is connected with zero potential (DCN);
(2). electric capacity (C3) and (C11) after the series connection is connected to the output of filter (LF1); Ground connection between capacitor C 3 and the capacitor C 11, electric capacity (C4) and (C9) after the series connection is connected the output of filter (LF1);
(3). light-emitting diode (LED1) and resistance (R3), resistance (R4), electric capacity (C13) series connection is later in parallel with electric capacity (C4, C9), goes up parallel voltage-stabilizing diode (ZD2) and voltage feedback signal at electric capacity (C13);
(4). connect with diode (D2) after resistance (R2) and electric capacity (C2) parallel connection, an end is connected on electric capacity (C4) and the transformer (T1) again, and the other end links to each other with the drain electrode of transformer (T1) with field effect transistor (Q1);
(5). the grid of field effect transistor (Q1) is triggered by gate pole, grid connects resistance (R13) and voltage stabilizing didoe (ZD1), the other end is connected to a side of filter (LF1), the source electrode of field effect transistor (Q1) connects resistance (R14), resistance (R15), resistance (R16), resistance (R12) is connected to the external resistance signal;
(6). a side of filter (LF1) is connected to transformer (T1), resistance (R18) and diode (D5) are connected in series on the transformer (T1), the secondary side of transformer (T1) connects diode (D1), resistance (R32) and electric capacity (C19) series connection back are in parallel with diode (D1), the output of diode (D1) connects inductance (L1) and electric capacity (C5), an other termination output signal (P6) of inductance (L1), middle shunt capacitance (C6), resistance (R7), electric capacity (C7);
(7). two taps of the secondary side of transformer (T1) are connected to the input side of diode (D4), be parallel to the two ends of diode (D4) after resistance (R33) and electric capacity (C33) series connection again, the appearance side of diode (D4) is parallel with electric capacity (C14) and electric capacity (C15), be in series with inductance (L2), the opposite side of inductance (L2) connects resistance (R20), electric capacity (C16), resistance (R17), voltage (C17), and output signal (P1);
(8). the opposite side of resistance (R19) connects photoelectricity coupling (PC1), be connected to an end of comparator (U2) after resistance (R20) and resistance (R22) series connection, electric capacity (C22) series resistance (R25) and (R30), comparator output signal is to photoelectrical coupler (PC1);
(9). the output of photoelectrical coupler (PC1) connects the zero potential (DCNF) of control chip (U1) through electric capacity (C24) and control section, and an other end connects resistance (R29) and links to each other with zero potential (DCNF);
(10). 1 pin of control chip (U1) is relatively to hold, be input to control chip (U1) by external signal input (VFB) through resistance (R24) and electric capacity (R21), external signal is directly received on (2) pin of control chip (U1), external input signal is input on the pin (3) of control chip, be connected with zero potential (DCNF) by electric capacity (C25), the one end output of photoelectrical coupler (PC1) connects resistance (R26), an other end of resistance (R26) is connected on the pin (4) of control chip (U1), is on (DCNF) adding on the pin (4) of control chip (U1) that electric capacity (C26) is connected to zero point;
(11). the earth terminal (5) of control chip (U1) directly is connected with zero potential (DCNF), the relatively end (8VREF) of control chip is from photoelectrical coupler (PC1) input signal, control chip (U1) out-put supply signal (7VCC) is to electric capacity (C13), control chip output signal (60UT) output signal is to electric capacity (C23), the other end output signal of electric capacity (C23), be connected to resistance (R28), the other end of resistance (R28) connects resistance (R31), and the gate signal of output field effect transistor, the other end of resistance (R31) is received zero potential (DCNF).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720036870XU CN201044416Y (en) | 2007-05-09 | 2007-05-09 | Frequency converter special for draught fan and water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720036870XU CN201044416Y (en) | 2007-05-09 | 2007-05-09 | Frequency converter special for draught fan and water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201044416Y true CN201044416Y (en) | 2008-04-02 |
Family
ID=39259307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720036870XU Expired - Lifetime CN201044416Y (en) | 2007-05-09 | 2007-05-09 | Frequency converter special for draught fan and water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201044416Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015058538A1 (en) * | 2013-10-22 | 2015-04-30 | 珠海格力电器股份有限公司 | Power source circuit and air conditioning unit |
| CN105629805A (en) * | 2014-10-28 | 2016-06-01 | 乐星产电(无锡)有限公司 | Safety stop device |
| CN106602967A (en) * | 2017-01-05 | 2017-04-26 | 四川埃姆克伺服科技有限公司 | Integrated electric motor driving unit structure |
| CN109843701A (en) * | 2016-10-13 | 2019-06-04 | 三菱电机株式会社 | Electric power steering apparatus |
| CN109854513A (en) * | 2017-11-27 | 2019-06-07 | 戴博水泵股份有限公司 | Motor-pump assembly with the system for software configuration |
-
2007
- 2007-05-09 CN CNU200720036870XU patent/CN201044416Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015058538A1 (en) * | 2013-10-22 | 2015-04-30 | 珠海格力电器股份有限公司 | Power source circuit and air conditioning unit |
| CN105629805A (en) * | 2014-10-28 | 2016-06-01 | 乐星产电(无锡)有限公司 | Safety stop device |
| CN109843701A (en) * | 2016-10-13 | 2019-06-04 | 三菱电机株式会社 | Electric power steering apparatus |
| CN106602967A (en) * | 2017-01-05 | 2017-04-26 | 四川埃姆克伺服科技有限公司 | Integrated electric motor driving unit structure |
| CN106602967B (en) * | 2017-01-05 | 2023-11-14 | 四川埃姆克伺服科技有限公司 | Integrated motor drive unit structure |
| CN109854513A (en) * | 2017-11-27 | 2019-06-07 | 戴博水泵股份有限公司 | Motor-pump assembly with the system for software configuration |
| CN109854513B (en) * | 2017-11-27 | 2022-04-29 | 戴博水泵股份有限公司 | Electric pump assembly with system for software configuration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201072438Y (en) | Multi-input channel modularized high-frequency isolation single phase electric energy feedback type electronic load | |
| CN201044416Y (en) | Frequency converter special for draught fan and water pump | |
| CN101051071A (en) | Multiple input path modular high frequency isolation single phase power feedback type electronic load | |
| WO2019223646A1 (en) | Frequency converter | |
| CN201540530U (en) | Power adapter applicable to laptop | |
| CN2874922Y (en) | Variable frequency fume exhaust fan | |
| CN201274460Y (en) | Multifunctional intelligent control apparatus for wind and electricity powered oil extractor | |
| CN213838859U (en) | Integrated multifunctional vertical water pump frequency conversion controller | |
| CN108696159A (en) | A kind of unmanned electromechanical sources of 10KW | |
| CN208597030U (en) | A kind of unmanned electromechanical source of 10KW | |
| CN2610126Y (en) | Midium-pressure frequency control of motor speed control device for submersible electric pump | |
| CN2598251Y (en) | Active power factor correcting module | |
| CN100340058C (en) | Three-phase AC. electric motorelectricity-saver | |
| CN201044424Y (en) | Non-sensor vector control frequency converter | |
| CN215817796U (en) | Electric push rod | |
| CN2783629Y (en) | Three-phase ac motor energy-saving device | |
| CN220733100U (en) | Semiconductor power device for optical storage and charging integrated charging station | |
| CN2702525Y (en) | Dead zone control driving signal generating device | |
| CN202998622U (en) | Intelligent illumination energy saving controller | |
| CN219499254U (en) | Fan lamp | |
| CN214280956U (en) | Energy-saving low-voltage control circuit | |
| CN218549778U (en) | Integrated driving plate and air conditioner | |
| CN218678842U (en) | Three-phase electric frequency converter and compressor equipment | |
| CN210693750U (en) | Energy-conserving UV power of adjusting luminance | |
| CN114401563B (en) | Heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080402 |